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Braz. j. biol ; 84: e251289, 2024. tab, graf
Article in English | MEDLINE, LILACS, VETINDEX | ID: biblio-1355889


Abstract The present research was made to determine the micronuclei and cytotoxic capacity of the antidepressant venlafaxine in an in vivo acute and subchronic assays in mouse. In the first study, we administered once 5, 50, and 250 mg/kg of the drug, and included a negative and a daunorubicin treated group. Observations were daily made during four days. The subchronic assay lasted 5 weeks with daily administration of venlafaxine (1, 5, and 10 mg/kg) plus a negative and an imipramine administered groups. Observations were made each week. In the first assay results showed no micronucleated polychromatic erythrocytes (MNPE) increase, except with the high dose at 72 h. The strongest cytotoxic effect was found with 250 mg/kg at 72 h (a 51% cytotoxic effect in comparison with the mean control level). In the subchronic assay no MNPE increase was found; however, with the highest dose a significant increase of micronucleated normochromatic erythrocytes was observed in the last three weeks (a mean of 51% respect to the mean control value). A cytotoxic effect with the two high doses in the last two weeks was observed (a polychromatic erythrocyte mean decrease of 52% respect to the mean control value). Results suggest caution with venlafaxine.

Resumo A presente pesquisa foi feita para determinar a capacidade micronuclei e citotóxica do antidepressivo venlafaxina em ensaios agudos e subcrônicos in vivo em camundongos. No primeiro estudo, administramos uma vez 5, 50 e 250 mg/kg do medicamento e incluímos um grupo negativo e um grupo tratado com daunorubicina. As observações foram feitas diariamente durante quatro dias. O ensaio subcrônico durou cinco semanas com administração diária de venlafaxina (1, 5, e 10 mg/kg) mais um grupo negativo e um grupo administrado de imipramina. As observações foram feitas a cada semana. No primeiro ensaio, os resultados não mostraram aumento de eritrócitos policromáticos micronucleados (MNPE), exceto com a dose elevada a 72 h. O efeito citotóxico mais forte foi encontrado com 250 mg/kg a 72 h (um efeito citotóxico de 51% em comparação com o nível médio de controle). No ensaio subcrônico não foi encontrado aumento de MNPE; entretanto, com a dose mais alta, um aumento significativo de eritrócitos normocromáticos micronucleados foi observado nas últimas três semanas (média de 51% em relação ao valor médio de controle). Foi observado um efeito citotóxico com as duas altas doses nas últimas duas semanas (uma diminuição média de 52% em relação ao valor médio de controle dos eritrócitos policromáticos). Os resultados sugerem cautela com a venlafaxina.

Animals , Rabbits , DNA Damage , Antineoplastic Agents , Micronucleus Tests , Dose-Response Relationship, Drug , Erythrocytes , Venlafaxine Hydrochloride/toxicity
An. bras. dermatol ; 97(1): 14-21, Jan.-Feb. 2022. tab
Article in English | LILACS | ID: biblio-1360096


Abstract Background: Mucocutaneous adverse events are common during anticancer treatment, with variable consequences for the patient and their therapeutic regimen. Objective: To evaluate the most common adverse events, as well as the drugs associated with their appearance and the consequences for cancer treatment. Methods: A retrospective study was carried out through the analysis of patients treated at the Clinical Dermatology Unit of a public oncologic hospital. Results: A total of 138 patients with 200 adverse events were evaluated. The most commonly identified adverse events were nail and periungual changes (20%), papulopustular eruptions (13%), acneiform eruptions (12%), hand-foot syndrome (6.5%), hand-foot skin reaction (6%), and xerosis (6%). The most frequently associated antineoplastic treatment groups were classical chemotherapy (46.2%), target therapy (32.3%), and other non-antineoplastic drugs used in neoplasia protocols (16.5%). Of the total number of patients, 17.4% had their treatment suspended or changed due to a dermatological adverse event. Study limitations: Retrospective study and analysis of patients who were referred for specialized dermatological examination only, not allowing the assessment of the actual incidence of adverse events. Conclusion: A wide variety of dermatological manifestations are secondary to antineoplastic treatment with several different drugs resulting, not rarely, in the interruption or modification of therapeutic regimens.

Humans , Neoplasms/drug therapy , Antineoplastic Agents/adverse effects , Skin , Retrospective Studies , Hospitals
Article in Portuguese | ColecionaSUS, LILACS, ColecionaSUS, CONASS, SES-GO | ID: biblio-1359838


Introdução: A L-asparaginase tem sido estudada como alternativa no tratamento da Leucemia Linfoblástica Aguda (LLA) uma vez que possui a capacidade de induzir apoptose em células leucêmicas sem causar danos às células normais. Estudos mostraram benefícios no tratamento da LLA, porém com o risco de desenvolver efeitos adversos. Objetivo: Este trabalho visa apresentar e explicar o histórico da L-asparaginase, desafios enfrentados pelo Brasil, mecanismos de ação que envolvem as formas da enzima e efeitos adversos de sua utilização. Métodos: Foram incluídos neste trabalho 54 artigos na língua portuguesa e inglesa consultados em bancos de artigos como PubMed e SciELO, entre o período de 1953 até 2021. Resultados: A L-asparaginase é uma enzima que converte asparagina em aspartato e amônia, isolada a partir de colônias de Escherichia coli e de Erwinia chrysanthemi, além disso foi polimerizada com polietilenoglicol. O uso de corticosteroides, anti-histamínicos e suplementação vitamínica se mostraram eficientes para amenizar os efeitos adversos. Conclusões: É necessário evitar um desabastecimento de L-Asparaginase no Brasil, principalmente por conta da dificuldade de comercialização e alto custo, mesmo sendo um medicamento presente na lista da Organização Mundial da Saúde, considerado essencial.

Introduction: L-asparaginase has been studied as an alternative in the treatment of Acute Lymphoblastic Leukemia (ALL) since it has the ability to induce apoptosis in leukemic cells without causing damage to normal cells. Studies have shown benefits in the treatment of ALL, but with the risk of developing adverse effects. Objective: This work aims to present and explain the history of L-asparaginase, challenges faced by Brazil, mechanisms of action involving the forms of the enzyme and adverse effects of its use. Methods: 54 articles in Portuguese and English were included in this work, consulted in article banks such as PubMed and SciELO, between the period of 1953 to 2021. Results: L-asparaginase is an enzyme that converts asparagine into aspartate and ammonia, isolated from from Escherichia coli and Erwinia chrysanthemi colonies, it was also polymerized with polyethylene glycol. The use of corticosteroids, antihistamines and vitamin supplementation proved to be efficient in mitigating adverse effects. Conclusions: It is necessary to avoid a shortage of L-Asparaginase in Brazil, mainly due to the difficulty of commercialization and high cost, even though it is a drug present on the World Health Organization list, considered essential.

Humans , Male , Female , Infant, Newborn , Infant , Child, Preschool , Asparaginase/antagonists & inhibitors , Precursor T-Cell Lymphoblastic Leukemia-Lymphoma/prevention & control , Escherichia coli , Antineoplastic Agents/administration & dosage
Article in English | WPRIM | ID: wpr-922534


OBJECTIVE@#The chemo-preventative and therapeutic properties of selenium nanoparticles (SeNPs) have been documented over recent decades and suggest the potential uses of SeNPs in medicine. Biogenic SeNPs have higher biocompatibility and stability than chemically synthesized nanoparticles, which enhances their medical applications, especially in the field of cancer therapy. This study evaluated the potential of green-synthetized SeNPs by using berberine (Ber) as an antitumor agent and elucidated the mechanism by which these molecules combat Ehrlich solid tumors (ESTs).@*METHODS@#SeNPs containing Ber (SeNPs-Ber) were synthesized using Ber and Na@*RESULTS@#Treatment with SeNPs-Ber significantly improved the survival rate and decreased the body weight and tumor size, compared to the EST group. SeNPs-Ber reduced oxidative stress in tumor tissue, as indicated by a decrease in the lipid peroxidation and nitric oxide levels and an increase in the glutathione levels. Moreover, SeNPs-Ber activated an apoptotic cascade in the tumor cells by downregulating the B-cell lymphoma 2 (Bcl-2) expression rate and upregulating the Bcl-2-associated X protein and caspase-3 expression rates. SeNPs-Ber also considerably improved the histopathological alterations in the developed tumor tissue, compared to the EST group.@*CONCLUSION@#Our study provides a new insight into the potential role of green-synthesized SeNPs by using Ber as a promising anticancer agent, these molecules could be used alone or as supplementary medication during chemotherapy.

Animals , Antineoplastic Agents , Antioxidants , Berberine , Male , Mice , Nanoparticles , Selenium
Braz. j. biol ; 82: e244735, 2022. tab, graf
Article in English | LILACS | ID: biblio-1249280


Abstract L-Asparaginase catalysing the breakdown of L-Asparagine to L-Aspartate and ammonia is an enzyme of therapeutic importance in the treatment of cancer, especially the lymphomas and leukaemia. The present study describes the recombinant production, properties and anticancer potential of enzyme from a hyperthermophilic archaeon Pyrococcus abyssi. There are two genes coding for asparaginase in the genome of this organism. A 918 bp gene encoding 305 amino acids was PCR amplified and cloned in BL21 (DE3) strain of E. coli using pET28a (+) plasmid. The production of recombinant enzyme was induced under 0.5mM IPTG, purified by selective heat denaturation and ion exchange chromatography. Purified enzyme was analyzed for kinetics, in silico structure and anticancer properties. The recombinant enzyme has shown a molecular weight of 33 kDa, specific activity of 1175 U/mg, KM value 2.05mM, optimum temperature and pH 80°C and 8 respectively. No detectable enzyme activity found when L-Glutamine was used as the substrate. In silico studies have shown that the enzyme exists as a homodimer having Arg11, Ala87, Thr110, His112, Gln142, Leu172, and Lys232 being the putative active site residues. The free energy change calculated by molecular docking studies of enzyme and substrate was found as ∆G - 4.5 kJ/mole indicating the affinity of enzyme with the substrate. IC50 values of 5U/mL to 7.5U/mL were determined for FB, caco2 cells and HepG2 cells. A calculated amount of enzyme (5U/mL) exhibited 78% to 55% growth inhibition of caco2 and HepG2 cells. In conclusion, the recombinant enzyme produced and characterized in the present study offers a good candidate for the treatment of cancer. The procedures adopted in the present study can be prolonged for in vivo studies.

Resumo A L-asparaginase, que catalisa a degradação da L-asparagina em L-aspartato e amônia, é uma enzima de importância terapêutica no tratamento do câncer, especialmente dos linfomas e da leucemia. O presente estudo descreve a produção recombinante, propriedades e potencial anticancerígeno da enzima de Pyrococcus abyssi, um archaeon hipertermofílico. Existem dois genes que codificam para a asparaginase no genoma desse organismo. Um gene de 918 bp, que codifica 305 aminoácidos, foi amplificado por PCR e clonado na cepa BL21 (DE3) de E. coli usando o plasmídeo pET28a (+). A produção da enzima recombinante foi induzida sob 0,5mM de IPTG, purificada por desnaturação seletiva por calor e cromatografia de troca iônica. A enzima purificada foi analisada quanto à cinética, estrutura in silico e propriedades anticancerígenas. A enzima recombinante apresentou peso molecular de 33 kDa, atividade específica de 1.175 U / mg, valor de KM 2,05 mM, temperatura ótima de 80º C e pH 8. Nenhuma atividade enzimática detectável foi encontrada quando a L-glutamina foi usada como substrato. Estudos in silico mostraram que a enzima existe como um homodímero, com Arg11, Ala87, Thr110, His112, Gln142, Leu172 e Lys232 sendo os resíduos do local ativo putativo. A mudança de energia livre calculada por estudos de docking molecular da enzima e do substrato foi encontrada como ∆G - 4,5 kJ / mol, indicando a afinidade da enzima com o substrato. Valores de IC50 de 5U / mL a 7,5U / mL foram determinados para células FB, células caco2 e células HepG2. Uma quantidade de enzima (5U / mL) apresentou inibição de crescimento de 78% a 55% das células caco2 e HepG2, respectivamente. Em conclusão, a enzima recombinante produzida e caracterizada no presente estudo é uma boa possibilidade para o tratamento do câncer. Os procedimentos adotados na presente pesquisa podem ser aplicados para estudos in vivo.

Humans , Asparaginase/biosynthesis , Asparaginase/pharmacology , Pyrococcus abyssi/enzymology , Antineoplastic Agents/pharmacology , Substrate Specificity , Enzyme Stability , Recombinant Proteins/biosynthesis , Recombinant Proteins/pharmacology , Caco-2 Cells , Escherichia coli/genetics , Molecular Docking Simulation , Hydrogen-Ion Concentration
Esc. Anna Nery Rev. Enferm ; 26: e20210246, 2022. graf
Article in Portuguese | LILACS, BDENF | ID: biblio-1360442


RESUMO Objetivo descrever as necessidades de aprendizagem de familiares de crianças e adolescentes com câncer quanto ao tratamento com quimioterápicos antineoplásicos orais. Método pesquisa qualitativa descritiva desenvolvida em um hospital federal do Rio de Janeiro, Brasil. Os dados foram coletados nos meses de julho a setembro de 2020 a partir de entrevistas semiestruturadas com vinte e três familiares de crianças e adolescentes com câncer em quimioterapia antineoplásica oral. Os dados foram processados no software Interface de R pour Analyses Multidimensionnelles de Textes et de Questionnaires pela Classificação Hierárquica Descendente. Resultados dentre os temas que demandam aprendizagem pelos familiares estão administração oral, armazenamento e manipulação dos quimioterápicos orais, além dos efeitos adversos e emergências que demandam atendimento hospitalar. Conclusão e implicações para a prática no tratamento com quimioterápicos orais, as necessidades de aprendizagem dos familiares de crianças e adolescentes precisam ser problematizadas em práticas educativas dialógicas para, assim, favorecer a segurança, a adesão e a eficácia do tratamento.

RESUMEN Objetivo describir las necesidades de aprendizaje de familiares de niños y adolescentes con cáncer en cuanto al tratamiento con quimioterápicos antineoplásicos orales. Método investigación cualitativa descriptiva desarrollada en un hospital federal de Río de Janeiro, Brasil. Los datos fueron recogidos en los meses de julio a septiembre de 2020 a partir de entrevistas semiestructuradas con veintitrés familiares de niños y adolescentes con cáncer en quimioterapia antineoplásica oral. Los datos fueron procesados en el software Interface de R pour Analyses Multidimensionnelles de Textes et de Questionnaires por la Clasificación Jerárquica Descendente. Resultados entre los temas que demandan aprendizaje por los familiares están administración oral, almacenamiento y manipulación de los quimioterápicos orales, además de los efectos adversos y emergencias que demandan atención hospitalaria. Conclusión e implicaciones para la práctica en el tratamiento con quimioterápicos orales, las necesidades de aprendizaje de los familiares de niños y adolescentes necesitan ser problematizadas en prácticas educativas dialógicas para, así, favorecer la seguridad, la adhesión y la eficacia del tratamiento.

ABSTRACT Objective to describe the learning needs of family members of children and adolescents with cancer regarding treatment with oral antineoplastic chemotherapies. Method a descriptive qualitative research developed in a federal hospital in Rio de Janeiro, Brazil. Data were collected in the months from July to September 2020 from semi-structured interviews with twenty-three family members of children and adolescents with cancer undergoing oral antineoplastic chemotherapy. Data was processed in the software Interface de R pour Analyses Multidimensionnelles de Textes et de Questionnaires by the Descending Hierarchical Classification. Results among the themes that demand learning by the family members are oral administration, storage and handling of oral antineoplastic drugs, as well as adverse effects and emergencies that require hospital care. Conclusion and implications for practice in oral antineoplastic treatment, the learning needs of family members of children and adolescents need to be problematized in dialogic educational practices in order to favor the safety, adherence, and efficacy of the treatment.

Humans , Male , Female , Child , Adolescent , Adult , Health Education , Caregivers/education , Neoplasms/therapy , Antineoplastic Agents/therapeutic use , Child Care , Methotrexate/therapeutic use , Administration, Oral , Qualitative Research , Drug Storage , Temozolomide/therapeutic use , Mercaptopurine/therapeutic use , Antineoplastic Agents/administration & dosage
Braz. dent. sci ; 25(2): 1-8, 2022. tab, ilus
Article in English | LILACS, BBO | ID: biblio-1367515


Lesions that affect the oral cavity resulting from chemotherapy can lead to systemic impairment, increasing the length of hospital stay, impairing the patient's quality of life. Through a integrative review, this work aims to show the conduct and importance of dentists in promoting oral health and preventing an oral infectious focus. The search was performed in the Pubmed, Cochrone, SciElo and Virtual Health Library (VHL) databases, using the descriptors in English, oral care and Chemotherapy and Cancer treatment and dentistry, filtering only articles in English and published between 2006 and 2021. The search located six hundred and twenty articles, but only seven met the search criteria. One author used a mouthwash containing propolis where 65% of patients were cured on the seventh day after the onset of oral mucositis (OM) lesions. One author used cryotherapy with chamomile infusion, patients who underwent this approach did not pass grade I, being effective in reducing the occurrence of OM, and the other two authors proposed a protocol for oral cavity care. All authors obtained satisfactory results.(AU)

As lesões que acometem a cavidade oral decorrente ao tratamento quimioterápico podem levar a um comprometimento sistêmico aumentando o tempo de internação hospitalar, prejudicando a qualidade de vida do paciente. O foco principal do cirurgião-dentista é identificar e remover fontes de infecção na cavidade oral antes do início da quimioterapia, controlar as possíveis lesões durante o tratamento. Após o tratamento quimioterápico, o paciente retornará para os cuidados dentários gerais, proporcionando manutenção da saúde bucal e prevenção de complicações ao longo prazo do tratamento do câncer. Através de uma revisão integrativa o objetivo desse trabalho é mostrar a conduta e a importância do cirurgião-dentista para promover saúde bucal e prevenir um foco infeccioso oral. A busca foi realizada nas bases de dados Pubmed, Cochrone, SciElo e Biblioteca virtual em saúde (BVS), foram utilizados os descritores em inglês, oral care and Chemotherapy and Cancer treatment and dentistry, filtrando somente os artigos na língua inglesa, estudos com seres humanos e os artigos publicados no intervalo de 2006-2021. A busca com os descritores citados encontrou seiscentos e vinte artigos, entretanto somente sete estavam dentro dos critérios da pesquisa. Um autor utilizou bochecho de própolis, outro crioterapia com infusão de camomila e os outros dois propuseram protocolo de cuidados com a cavidade oral. Todos os autores obtiveram resultados satisfatórios. (AU)

Dentistry , Medical Oncology , Antineoplastic Agents
Rev. bioét. (Impr.) ; 29(4): 791-797, out.-dez. 2021.
Article in Portuguese | LILACS | ID: biblio-1365509


Resumo Além de ser uma modalidade de enfrentamento, ressignificação do sofrimento e concepção de vida, a espiritualidade é fonte de esperança e confiança para pacientes oncológicos. Com base nessas premissas, objetivou-se desvelar a concepção de espiritualidade de pacientes oncológicos em tratamento antineoplásico a fim de compreender sua influência no enfrentamento da doença. Trata-se de estudo descritivo, de delineamento qualitativo, realizado no ambulatório de quimioterapia de um hospital público brasileiro. A amostra foi composta por 18 pacientes oncológicos submetidos a sessões de quimioterapia, em tratamento ambulatorial, maiores de 18 anos, de ambos os sexos. Para confecção dos resultados, utilizou-se a análise de conteúdo temática, que revelou duas categorias: 1) espiritualidade como fonte de esperança e confiança; e 2) espiritualidade como fonte de ressignificação do sofrimento e de uma renovada concepção de vida.

Abstract In addition to being a way of coping with and attributing new meanings to suffering and conceiving life, spirituality is a source of hope and confidence for cancer patients. From these premises, the aim of this study was to present the perception of spirituality of cancer patients undergoing antineoplastic treatment in order to understand its influence on how patients cope with the disease. This is a descriptive and qualitative study carried out in the outpatient chemotherapy clinic of a Brazilian public hospital. The study sample consisted of 18 cancer patients undergoing outpatient chemotherapy, over 18 years of age, of both genders. Thematic content analysis was used, which revealed two thematic categories: 1) spirituality as a source of hope and confidence; and 2) spirituality as a source of new meanings to suffering and of a renewed view of life.

Resumen Además de ser una modalidad de afrontamiento, resignificación del sufrimiento y concepción de la vida, la espiritualidad es una fuente de esperanza y confianza para los pacientes oncológicos. Partiendo de estas premisas, el objetivo de este trabajo fue desvelar la concepción de la espiritualidad de los pacientes con cáncer sometidos a tratamiento antineoplásico para comprender su influencia en el afrontamiento de la enfermedad. Se trata de un estudio descriptivo de diseño cualitativo, realizado en el ambulatorio de quimioterapia de un hospital público brasileño. La muestra se compuso de 18 pacientes oncológicos sometidos a sesiones de quimioterapia, en tratamiento ambulatorio, mayores de 18 años, de ambos sexos. Para confeccionar los resultados, se utilizó el análisis de contenido temático, que reveló dos categorías: 1) la espiritualidad como fuente de esperanza y confianza; y 2) la espiritualidad como fuente de resignificación del sufrimiento y de una concepción renovada de la vida.

Patients , Religion , Spirituality , Qualitative Research , Medical Oncology , Neoplasms , Antineoplastic Agents
Enferm. foco (Brasília) ; 12(5): 943-999, dez. 2021. tab, ilus
Article in Portuguese | LILACS, BDENF | ID: biblio-1367158


Objetivo: Elaborar e validar o conteúdo da cartilha sobre o tratamento quimioterápico para crianças com câncer. Métodos: Tratou-se de um estudo metodológico do tipo elaboração e validação de tecnologias, desenvolvido entre setembro de 2015 a março de 2017, desenvolvido em cinco etapas: diagnóstico situacional, levantamento bibliográfico, seleção e sumarização do conteúdo, elaboração do texto, criação das imagens e diagramação. A avaliação da cartilha foi realizada por 10 juízes especialistas com experiência na área de pediatria oncológica utilizando a Técnica Delphi. Adotou-se como nível de concordância aceitáveis para os Índices de Validação de Conteúdo dos itens, categoria e global os valor igual ou superior a 0,80. Resultados: A cartilha foi submetida a duas rodadas de avaliação. Os itens das categorias conteúdo, linguagem, ilustrações, organização, layout, relevância e aplicabilidade clínica obtiveram IVC ≥0,80, com IVC Global de 0,96. Conclusão: A cartilha foi considerada uma tecnologia didática instrucional validada, apresentando aplicabilidade clínica e relevância na área de oncologia pediátrica, após duas etapas de validação. (AU)

Objective: To develop and validate the content of the booklet on chemotherapy treatment for children with cancer. Methods: This was a methodological study of the elaboration and validation of technologies type, developed between September 2015 and March 2017, developed in five stages: situational diagnosis, literature review, selection and summarization of content, text elaboration, creation of images and layout. The evaluation of the booklet was carried out by 10 expert judges with experience in the field of pediatric oncology using the Delphi Technique. The acceptable level of agreement for the Content Validation Indices of items, category and global was adopted as values equal to or greater than 0.80. Results: The booklet underwent two rounds of evaluation. Items in the content, language, illustrations, organization, layout, relevance and clinical applicability categories had a CVI ≥0.80, with a Global CVI of 0.96. Conclusion: The booklet was considered a validated instructional didactic technology, with clinical applicability and relevance in the field of pediatric oncology, after two stages of validation. (AU)

Objetivo: Desarrollar y validar el contenido del folleto sobre el tratamiento de quimioterapia para niños con cáncer. Métodos: Se trata de un estudio metodológico de elaboración y validación de tecnologías tipo, desarrollado entre septiembre de 2015 y marzo de 2017, desarrollado en cinco etapas: diagnóstico situacional, revisión de literatura, selección y resumen de contenidos, elaboración de textos, creación de imágenes y maquetación. La evaluación del folleto fue realizada por 10 jueces expertos con experiencia en el campo de la oncología pediátrica utilizando la Técnica Delphi. El nivel aceptable de concordancia para los Índices de Validación de Contenido de ítems, categoría y global fue adoptado como valores iguales o mayores a 0,80. Resultados: El folleto se sometió a dos rondas de evaluación. Los ítems en las categorías de contenido, idioma, ilustraciones, organización, diseño, relevancia y aplicabilidad clínica tuvieron un IVC ≥0.80, con un IVC global de 0.96. Conclusión: El cuadernillo fue considerado una tecnología didáctica instruccional validada, con aplicabilidad clínica y relevancia en el campo de la oncología pediátrica, luego de dos etapas de validación. (AU)

Oncology Nursing , Teaching Materials , Child , Validation Study , Patient Safety , Antineoplastic Agents
Vaccimonitor (La Habana, Print) ; 30(3)2021. tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1341783


Se realizó un estudio retrospectivo y observacional en pacientes con adenocarcinoma pancreático avanzado, tratados con Nimotuzumab combinado con un esquema de quimioterapia GEMOX, atendidos en el Servicio de Oncología Clínica del Hospital Clínico Quirúrgico Hermanos Ameijeiras entre 2013 y 2019 (n=118), cuyo objetivo fue evaluar la respuesta al tratamiento y la supervivencia global según variables clínicas, histopatológicas y tratamiento. Se utilizó método chi-cuadrado para la asociación de variables. Se evaluó la supervivencia global por el método de Kaplan Meier y se utilizó la prueba de Log-Rank y Breslow para la comparación de las curvas, con valor p<0.05. La tasa de control de la enfermedad fue 44,9. La mediana de supervivencia fue de 13,8 meses (IC95 por ciento:11,7-15,8). Las variables estadísticamente significativas asociadas con mayor respuesta al tratamiento y supervivencia fueron: no hábitos tabáquicos; índice plaquetas-linfocitos por debajo de 200; tumores primarios T2-T3, de localización predominantemente en cabeza pancreática; no presencia de metástasis al diagnóstico y más de seis dosis de quimioterapia o Nimotuzumab. Los pacientes con clasificación de bajo peso y albúmina sérica baja tuvieron peor supervivencia (p<0.05). En 42 pacientes se realizó una segunda línea de quimioterapia y se obtuvo supervivencia de 17,4 meses (IC95 por ciento:13,5-21,4). Las toxicidades clasificadas como grado 3-4 se reportaron en 27 pacientes (22,9 por ciento), las más frecuentemente observadas fueron: neuropatía (14,4 por ciento), neutropenia (10,2 por ciento) y trombopenia (9,3 por ciento). En condiciones de práctica clínica, con el Nimotuzumab combinado con quimioterapia GEMOX se obtuvieron óptimas tasas de control de la enfermedad y supervivencia con buen perfil de seguridad(AU)

A retrospective and observational study was carried out in patients with advanced pancreatic adenocarcinoma, treated with Nimotuzumab combined with a GEMOX chemotherapy scheme, in the Clinical Oncology Service at the Ameijeiras Hospital, between 2013 and 2019 (n =118), whose objective was to evaluate the response to the treatment and overall survival according to clinical, histopathological and treatment variables. The chi-square method was used for the association of variables. Overall survival was evaluated by the Kaplan Meier method and the Log-Rank and Breslow test for the comparison of the curves, with p <0.05. The disease control rate was 44.9. The median survival was 13.8 months (95 percent CI: 11.7-15.8). The statistically significant variables associated with greater response to treatment and survival were: no smoking habits; platelet-lymphocyte index below 200; T2-T3 primary tumors, predominantly located in the pancreatic head; no presence of metastases at diagnosis and greater than six doses of chemotherapy and Nimotuzumab. Patients classified as underweight and low serum albumin had worse survival (p <0.05). Second-line chemotherapy was performed in 42 patients and it was obtained SV of 17.4 months (95 percent CI: 13.5-21.4). Toxicities classified as grade 3-4 were reported in 27 patients (22.9 percent); the most frequently observed were: neuropathy (14.4 percent), neutropenia (10.2 perrcent) and thrombopenia (9.3 percent). Under clinical practice conditions, Nimotuzumab combined with GEMOX chemotherapy obtained optimal disease control and survival rates with a good safety profile(AU)

Humans , Pancreatic Neoplasms/drug therapy , Reference Drugs , Retrospective Studies , Observational Study , Antineoplastic Agents/therapeutic use
Bol. latinoam. Caribe plantas med. aromát ; 20(4): 394-405, jul. 2021. ilus
Article in English | LILACS | ID: biblio-1352427


In this study, it was aimed to determine the antioxidant and anticancer activities of Sideritis perfoliata methanolic extract (SPE) on cervical cancer cells (HeLa). Different doses (25, 50,100 and 200 µg/mL) of SPE were used to determine proliferation of HeLa cells by 3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide (MTT) staining method. Induction of apoptosis was determined by Annexine-V and propidium iodide staining method. Interleukin (IL) 6-8 levels were measured by ELISA method. Antioxidant activities of SPE were determined by DPPH, DNA (plasmid pBR322) protecting and cellular antioxidant activity tests. Some phytochemicals of SPE were also screened by LC-MS-MS. It was determined that SPE reduced the proliferation of HeLa cells and also induced apoptosis. IL6-8 levels importantly decreased at 200 µg/mL. SPE exhibited moderately antioxidant activities in tests used. Among the phenolics identified, vanillic acid had the highest amount. As a result, it was determined to have the anticancer activity of SPE by decreasing cell proliferation, inducing apoptosis and decreasing IL6-8 in HeLa cells.

En este estudio, se tuvo como objetivo determinar las actividades antioxidantes y anticancerígenas del extracto metanólico de Sideritis perfoliata (SPE) en las células de cáncer de cuello uterino (HeLa). Se utilizaron diferentes dosis (25, 50, 100 y 200 µg/mL) de SPE para determinar la proliferación de células HeLa mediante el método de tinción con bromuro de 3-[4,5-dimetiltiazol-2-il] -2,5-difenil-tetrazolio (MTT). La inducción de apoptosis se determinó mediante el método de tinción con anexina-V y yoduro de propidio. Los niveles de interleucina (IL) 6-8 se midieron mediante el método ELISA. Las actividades antioxidantes de SPE se determinaron mediante pruebas de DPPH, protección de ADN (plásmido pBR322) y actividad antioxidante celular. Algunos fitoquímicos de SPE también se analizaron mediante LC-MS-MS. Se determinó que SPE redujo la proliferación de células HeLa y también indujo apoptosis. Los niveles de IL6-8 disminuyeron de manera importante a 200 µg/mL. SPE mostró actividades moderadamente antioxidantes en las pruebas utilizadas. Entre los fenólicos identificados, el ácido vainílico tuvo la mayor cantidad. Como resultado, se determinó que tenía la actividad anticancerígena de SPE al disminuir la proliferación celular, inducir apoptosis y disminuir la IL6-8 en las células HeLa.

Plant Extracts/administration & dosage , Uterine Cervical Neoplasms , Sideritis/chemistry , Cell Proliferation/drug effects , Antioxidants/administration & dosage , Phenols/analysis , Plant Extracts/chemistry , Cell Survival , Interleukin-8/analysis , Interleukin-6/analysis , Apoptosis/drug effects , Gas Chromatography-Mass Spectrometry , Antineoplastic Agents , Antioxidants/chemistry
Medisur ; 19(3): 503-507, 2021. graf
Article in Spanish | LILACS | ID: biblio-1287331


RESUMEN Los tumores del tracto urinario superior representan menos del 5 % de todas las neoplasias uroteliales, con un porcentaje de recurrencia superior al 90 % y una supervivencia a los 5 años que oscila entre el 30-60 %. Por tales razones se presenta el caso de un paciente de 79 años que fue ingresado en el Hospital General Universitario Dr. Gustavo Aldereguía Lima de Cienfuegos, con un cuadro clínico caracterizado por hematuria, sin otra sintomatología. Mediante estudios imagenológicos le fue diagnosticado un tumor en la pelvis del riñón derecho. Se realizó tratamiento quirúrgico, practicándose una nefrectomía total, cuyo resultado histológico fue un carcinoma de células transicionales grado II con infiltración a planos musculares. La evolución clínica fue favorable luego de un año de la cirugía. Podemos concluir que en el diagnóstico precoz tienen un papel fundamental las imágenes tomográficas, pues permitieron identificar un tumor de las vías excretoras urinarias superiores en pelvis renal derecha. Se trazó una estrategia terapéutica inicialmente quirúrgica y a continuación quimioterapia; se logró una evolución satisfactoria y contribuir a la sobrevida de este paciente.

ABSTRACT Upper urinary tract tumors represent less than 5% of all urothelial neoplasms, with a recurrence rate greater than 90% and a 5-year survival that ranges from 30-60%. Therefore a 79-years-old patient was admitted to the Dr. Gustavo Aldereguía Lima University General Hospital in Cienfuegos, with a medical history characterized by hematuria, without other symptoms. Through imaging studies, he was diagnosed with a tumor in the pelvis of the right kidney. Surgical treatment was performed and a total nephrectomy was performed, the histological result of which was a grade II transitional cell carcinoma with infiltration to the muscular planes. The clinical evolution was favorable one year after surgery. We conclude that tomographic images play a fundamental role in early diagnosis, since they allowed the identification of a tumor of the upper urinary excretory tract in the right renal pelvis. A therapeutic strategy was initially designed for surgery and then chemotherapy; a satisfactory evolution was achieved and contributes to the survival of this patient.

Humans , Male , Aged , Urologic Neoplasms/diagnostic imaging , Antineoplastic Agents/therapeutic use , Clinical Evolution , Urologic Neoplasms/surgery , Survivorship
Arch. cardiol. Méx ; 91(2): 229-234, abr.-jun. 2021. tab, graf
Article in Spanish | LILACS | ID: biblio-1248790


Resumen Hoy una de las principales causas de mortalidad es el cáncer. La supervivencia en pacientes con cáncer ha incrementado de 1970 (25%) a la actualidad (80%). A raíz de la introducción de las antraciclinas como tratamiento de cáncer desde 1960-1970, más del 60% de los pacientes son tratados con estos agentes; sin embargo, la exposición de quimioterápicos conlleva las enfermedades cardiovasculares como la principal causa de mortalidad en enfermos supervivientes de cáncer en el s. XXI. Hay múltiples factores que incrementan la sensibilidad de cardiotoxicidad inducida por antracíclicos. En 1970 el estándar de oro para la detección de disfunción ventricular era la biopsia endomiocárdica, en forma posterior la detección y manejo de la cardiotoxicidad fue guiada por los síntomas, en 1981 la detección de cardiotoxicidad fue reportada con la determinación de la fracción de expulsión del ventrículo izquierdo (FEVI) por ecocardiografía 2D. En la actualidad el ecocardiograma 3D para FEVI y volúmenes sistólico y diastólico han presentado una alta correlación de los valores obtenidos por resonancia magnética para la evaluación de la función cardiaca. Hoy en día la ecocardiografía strain, strain-rate y speckle tracking se utilizan para determinar la función miocárdica regional y global. Para una valoración integral estos resultados se pueden complementar con biomarcadores cardiacos (troponinas y propéptido natriurético tipo B) y cambios electrocardiográficos. De esta forma se puede detectar insuficiencia cardiaca subclínica y dar un tratamiento oportuno.

Abstract Today one of the main causes of mortality is cancer. Survival in cancer patients has increased from 1970 (25%) to the present (80%). Following the introduction of anthracyclines as a cancer treatment since 1960-70, more than 60% of patients are treated with these agents, although chemotherapeutic exposure leads to cardiovascular diseases as the main cause of mortality in surviving patients. of cancer in the 21st Century. There are multiple factors that increase the sensitivity of anthracyclic-induced cardiotoxicity. In 1970 the gold standard for the detection of ventricular dysfunction was endomyocardial biopsy, subsequently the detection and management of cardiotoxicity was guided by symptoms, in 1981 the detection of cardiotoxicity was reported with the determination of the ejection fraction of the left ventricle (LVEF), by 2D echocardiography. Currently, the 3D echocardiogram for LVEF and systolic and diastolic volumes have presented a high correlation of the values obtained by magnetic resonance imaging for the evaluation of cardiac function. Today strain, strain-rate and speckle tracking echocardiography are used to determine regional and global myocardial function. For a comprehensive assessment, these results can be complemented with cardiac biomarkers (troponins) and electrocardiographic changes. In this way, subclinical heart failure can be detected and timely treatment can be given.

Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Young Adult , Echocardiography/methods , Echocardiography, Three-Dimensional/methods , Cardiotoxicity/diagnostic imaging , Heart Failure/diagnosis , Neoplasms/drug therapy , Antineoplastic Agents/toxicity , Heart Failure/etiology , Antineoplastic Agents/therapeutic use
Rev. cuba. med ; 60(2): e1510, tab, graf
Article in Spanish | LILACS, CUMED | ID: biblio-1280345


Introducción: La desensibilización rápida a medicamentos induce una tolerancia temporal a los quimioterapéuticos que provocan reacciones de hipersensibilidad. Objetivo: Evaluar el protocolo de desensibilización rápida en escenario ambulatorio en pacientes que presentaron reacciones de hipersensibilidad a fármacos citotóxicos. Métodos: Se realizó un estudio observacional, y retrospectivo, de 30 pacientes con cáncer que desarrollaron reacciones de hipersensibilidad entre los años 2016 y 2018, tratados en el Hospital de Día del Servicio de Oncología del Clínico Quirúrgico Hermanos Ameijeiras. Se clasificaron según su intensidad, y se analizaron variables demográficas, características clínicas, y síntomas presentados. Se utilizó un protocolo en doce etapas basado en tres diluciones del fármaco. Se administró premedicación en todos los casos. Se realizó estadística descriptiva, y para la asociación entre variables, se utilizó la prueba estadística Chi-cuadrado. Resultados: La mediana de edad fue 54 años (23;77). Predominaron las mujeres; los menores de 60 años; tumor primario de colon; antecedentes de alergia; el oxaliplatino como fármaco más implicado; las RHS durante la infusión; e intensidad moderada. Fueron más frecuentes los síntomas cutáneos y gastrointestinales. Con la aplicación del protocolo se completó la quimioterapia planificada a los 30 pacientes (145 ciclos adicionales). Solo se presentaron ocho desensibilizaciones con reacciones leves de tipo cutáneas. El 94,5 por ciento de las desensibilizaciones no presentaron reacción alguna. Conclusiones: Constituye el primer reporte nacional de la utilización exitosa de un protocolo de desensibilización rápida a citostáticos que demostró ser eficaz y seguro en el escenario ambulatorio, con un manejo multidisciplinario(AU)

Introduction: Rapid desensitization to drugs induces a temporary tolerance to chemotherapeutics causing hypersensitivity reactions. Objective: To evaluate the rapid desensitization protocol in an outpatient setting in patients who had hypersensitivity reactions to cytotoxic drugs. Methods: An observational and retrospective study was carried out in 30 cancer patients, who developed hypersensitivity reactions, from 2016 to 2018. They were treated in the outpatient Oncology service at Hermanos Ameijeiras Surgical Clinical Hospital. These subjects were classified according to intensity; demographic variables, clinical characteristics, and symptoms were analyzed. A twelve-step protocol based on three dilutions of the drug was used. Premedication was administered in all cases. Descriptive statistics and for the association between variables were performed. Chi-square statistical test was used. Results: The median age was 54 years (23; 77). Predominance was observed in women, those under 60 years of age, primary colon tumor, history of allergy, oxaliplatin as the drug most implicated, HRH during infusion, and moderate intensity. Skin and gastrointestinal symptoms were more frequent. The planned chemotherapy was completed with the application of the protocol, in all 30 patients (145 additional cycles). There were only eight desensitization with mild skin-type reactions. 94.5 percent of desensitizations did not show any reaction. Conclusions: It constitutes the first national report of successful use of a rapid desensitization protocol to cytostatics that proved to be effective and safe in the outpatient setting with multidisciplinary management(AU)

Humans , Female , Desensitization, Immunologic , Oxaliplatin/therapeutic use , Hypersensitivity , Antineoplastic Agents/therapeutic use , Epidemiology, Descriptive , Retrospective Studies , Observational Study
Rev. urug. cardiol ; 36(1): e36107, abr. 2021. ilus, tab
Article in Spanish | LILACS, BNUY, UY-BNMED | ID: biblio-1252372


Las nuevas terapias oncológicas han logrado aumentar la sobrevida del paciente con cáncer, observando, sin embargo, un incremento de la morbilidad y mortalidad vinculadas a sus efectos secundarios. El desarrollo de eventos cardiovasculares adversos impacta negativamente en el pronóstico durante el tratamiento del cáncer, pero también en los supervivientes al cáncer, donde las enfermedades cardiovasculares (ECV) y las segundas neoplasias son la principal causa de muerte1-5. La cardiotoxicidad inducida por el tratamiento del cáncer se define como el conjunto de ECV derivadas de los tratamientos oncológicos. Su manifestación es variada e incluye el desarrollo de disfunción ventricular, insuficiencia cardíaca (IC), isquemia miocárdica, hipertensión arterial y arritmias, entre otras. Puede ser consecuencia tanto del efecto directo del tratamiento sobre la estructura y función cardíacas, como del desarrollo acelerado de ECV6-9. Frecuentemente se utiliza el término cardiotoxicidad como sinónimo de disfunción ventricular por quimioterapia (DV-QT). Dado que la cardiotoxicidad abarca un espectro más amplio de afectación cardiovascular, creemos conveniente hablar de DV-QT para referirnos a la afectación de la función sistólica del ventrículo izquierdo. La DV-QT y el desarrollo de IC representan una de las complicaciones más temidas por su impacto pronóstico en la esfera cardiovascular y oncológica, dado que limitan el arsenal terapéutico para el tratamiento del cáncer5,10. Han sido creadas diversas sociedades de cardio-onco-hematología con el fin de generar recomendaciones de práctica clínica y formar profesionales capacitados para el manejo de las complicaciones cardiovasculares del tratamiento del cáncer11. La cardio-oncología es una disciplina en creciente y continuo desarrollo. Creemos que es fundamental realizar tareas de formación médica continua, así como también estimular el trabajo conjunto de diversas especialidades para brindar una mejor asistencia. Este texto es el resultado del trabajo de un equipo multidisciplinario que incluye cardiólogos, hematólogos y oncólogos, y pretende brindar información a los integrantes del equipo de salud involucrados en la asistencia de pacientes oncológicos. Debido a su extensión, hemos decidido fraccionar el contenido en tres partes para facilitar su publicación.

New oncological therapies have been successful in increasing cancer patient survival, but they have also led to an increase in morbidity and mortality linked to their side effects. During cancer treatment, the development of cardiovascular side effects has a negative impact in prognosis, but also in cancer survivors, in whom cardiovascular diseases and secondary malignancies are the main cause of death. Cancer related cardiotoxicity is defined as the development of cardiovascular diseases related to cancer treatment. Clinical presentation is broad involving ventricular dysfunction, heart failure, myocardial ischemia, arterial hypertension and arrhythmias among others. This may result from the direct cardiovascular effect of a cancer treatment or accelerated development of cardiovascular diseases. Frequently, in the literature cardiotoxicity and chemotherapy related ventricular dysfunction are used as synonyms. However, cardiotoxicity includes a broad spectrum of cardiovascular manifestations, thus in this text we refer to chemotherapy related ventricular dysfunction as the presence of left ventricular systolic impairment. Chemotherapy related ventricular dysfunction and heart failure are two of the most feared complications of cancer treatment due to its impact on cardiovascular and oncological prognosis, affecting treatment options. Numerous worldwide cardio-onco-hematology societies have emerged to generate clinical practice guidelines and improve the diagnosis and evaluation of cardiovascular cancer treatment side effects. Cardio-Oncology is a discipline in continuous growth and development. We strongly believe that continuum medical education and a multidisciplinary approach is necessary to provide a quality health care. This text is the result of a multidisciplinary work involving cardiologists, hematologists and oncologists. It is our goal to provide information to the health care team involved in the assistance of cancer patients. Due to its extension, it will be published in three parts.

O desenvolvimento de novas terapias oncológicas levou a um aumento na sobrevida dos pacientes, mas ao mesmo tempo traz consigo morbidades relacionadas aos tratamentos. O desenvolvimento de efeitos cardiovasculares adversos tem um impacto negativo no prognóstico dos pacientes em tratamento, bem como nos pacientes considerados curados, nos quais doença cardiovascular e malignidades secundárias são as principais causas de morte. Cardiotoxicidade relacionada ao câncer é definida como o desenvolvimento de doença cardiovascular secundária ao tratamento. A gama de apresentações clínicas é ampla, podendo se manifestar como disfunção ventricular, insuficiência cardíaca, isquemia miocárdica, hipertensão arterial, arritmias, entre outras. Isto pode ser resultante de desenvolvimento e progressão acelerados de doença cardiovascular ou por efeito direto das terapias. Frequentemente é dito na literatura que cardiotoxicidade e disfunção ventricular relacionada à quimioterapia são sinônimos. Entretanto, cardiotoxicidade engloba um amplo espectro de manifestações cardiovasculares. Neste texto, portanto, nos referimos à disfunção ventricular causada por quimioterápicos exclusivamente como a presença de disfunção sistólica ventricular esquerda. Disfunção ventricular relacionada à quimioterapia e insuficiência cardíaca são duas das mais temidas complicações do tratamento oncológico devido ao seu impacto no prognóstico cardiovascular e oncológico, podendo afetar ainda a escolha e manutenção das opções terapêuticas. Diversas sociedades cardio-onco-hematológicas surgiram ao redor do mundo com o objetivo de gerar diretriz clínicas práticas e melhorar o diagnóstico e tratamento das complicações cardiovasculares resultantes das terapias oncológicas. A cardio-oncologia é uma disciplina em contínuo crescimento e desenvolvimento. Nós acreditamos fortemente que educação médica continuada e uma abordagem multidisciplinar são necessárias para um cuidado médico de qualidade. Este texto é o resultado de um trabalho multidisciplinar envolvendo cardiologistas, hematologistas e oncologistas. Nosso objetivo é de oferecer informação à equipe de cuidados em saúde envolvido na assistência destes pacientes. Devido à sua extensão, este texto será publicado em três partes.

Humans , Ventricular Dysfunction/chemically induced , Ventricular Dysfunction/prevention & control , Ventricular Dysfunction/diagnostic imaging , Cardiotoxins/adverse effects , Cardiotoxins/pharmacology , Antineoplastic Agents/adverse effects , Biomarkers , Risk Assessment , Patient Care/standards , Heart Failure/chemically induced
J. bras. econ. saúde (Impr.) ; 13(1): 31-42, Abril/2021.
Article in Portuguese | LILACS, ECOS | ID: biblio-1252695


Objetivo: Descrever e analisar criticamente as avaliações econômicas de medicamentos antineoplásicos submetidas à Agência Nacional de Saúde Suplementar (ANS) durante o processo de atualização do rol de procedimentos em saúde 2020. Métodos: Estudo transversal de análise crítica dos estudos de avaliação econômica integrantes da documentação submetida à ANS com o objetivo de incorporação no rol de procedimentos. A avaliação da qualidade metodológica foi realizada por meio da ferramenta Methodology Checklist 6: Economic Evaluations Version 3.0 da Scottish Intercollegiate Guidelines Network. Resultados: Foram incluídas 49 avaliações econômicas: 22 estudos de custo-efetividade, 10 estudos de custo-utilidade, três estudos de custo-minimização e 14 estudos de custo-efetividade e custo-utilidade. A qualidade metodológica foi considerada, na maior parte (88%), como aceitável ou de baixa qualidade. Conclusão: Estudos de avaliação econômica são fundamentais no processo decisório de incorporação de tecnologias na saúde suplementar. Esta análise crítica sugere que a qualidade dos estudos econômicos apresentados dentro das propostas de incorporação de antineoplásicos durante o processo de atualização do rol 2020 da ANS foi limitada. Inconsistências metodológicas e falta de um relato transparente reduzem a validade e a aplicabilidade dos achados na tomada de decisão.

Objective: To describe and critically appraise the economic evaluations of antineoplastic drugs submitted to the ANS during the process of updating its 2020' list of procedures. Methods: Cross-sectional study of critical analysis of the economic evaluation studies included in the documentation submitted to the ANS with the aim of incorporating them into the list of procedures. The methodological quality assessment was carried out using the Methodology Checklist 6: Economic Evaluations Version 3.0 of the Scottish Intercollegiate Guidelines Network. Results: Overall, 49 economic evaluations were included: 22 cost-effectiveness studies, 10 cost-utility studies, three cost-minimization studies and 14 mixed economic studies. Methodological quality was mostly considered as acceptable or low quality. Conclusion: Economic evaluation studies are fundamental in the decision-making process of incorporating technologies into supplementary health care. This critical appraisal suggests that the quality of the economic studies presented within the proposals to incorporate antineoplastics during the process of updating the ANS 2020 roll was limited. Methodological inconsistencies and lack of transparent reporting reduce the validity and applicability of findings for decision-making

Decision Making , Health Care Economics and Organizations , Cost-Effectiveness Evaluation , Neoplasms , Antineoplastic Agents
Rev. epidemiol. controle infecç ; 11(1): 19-25, jan.-mar. 2021. ilus
Article in English, Portuguese | LILACS | ID: biblio-1362056


Background and Objectives: Cancer is a chronic degenerative disease and its diagnosis is often associated with mental distress, doubts and insecurities that can trigger depressive symptoms, causing the need for pharmacological treatment. However, cancer patients often use multiple medications (polypharmacy), thus increasing the chances of potential drug interactions. The objective of this study was to evaluate the use of antidepressant drugs in oncological inpatients and the potential drug interactions of their prescriptions. Methods: Prospective, descriptive, and analytical cross-sectional study conducted with cancer patients aged ≥ 18 years, admitted to a hospital in Southern Brazil, and aware of their diagnosis. Larger and contraindicated drug interactions were analyzed using the Micromedex® and Lexicomp® databases. Results: The sample consisted of 50 patients, 54% were female and the mean age was 53.6 (± 15.3) years. Antidepressant drugs were used in 42% of the patients, escitalopram (selective serotonin reuptake inhibitors) being the most prescribed. 90% of the patients had some potential interaction and they occurred with any drug prescribed for treatment. Out of the patients using antidepressants, 62% had contraindicated interactions and all had at least one case of major interaction. The drugs most related to contraindicated drug interactions were dipyrone and metoclopramide. Conclusion: The results of this study demonstrated a high number of contraindicated interactions involving antidepressant drugs. The significance of monitoring and adjusting the pharmacotherapy of these patients is crucial.(AU)

Justificativa e Objetivos: O câncer é uma doença crônico-degenerativa cujo diagnóstico constantemente está associado a sofrimento mental, dúvidas e inseguranças, podendo desencadear sintomas depressivos, de forma que às vezes são necessárias medidas farmacológicas para tratar desses sintomas. Entretanto, pacientes oncológicos frequentemente utilizam vários medicamentos (polifarmácia), aumentando as chances de potenciais interações medicamentosas. Este estudo pretendeu avaliar o uso de antidepressivos nos pacientes em tratamento oncológico hospitalizados e as potenciais interações medicamentosas de suas prescrições. Métodos: Estudo transversal, prospectivo, descritivo e analítico realizado com pacientes oncológicos com idade superior a 18 anos, internados em um hospital do Sul do Brasil e cientes de seu diagnóstico. As interações medicamentosas maiores e as contraindicadas foram analisadas por meio das bases de dados Micromedex® e Lexicomp®. Resultados: Na amostra, composta de 50 pacientes, 54% eram do sexo feminino, e a média de idade foi de 53,6 (±15,3) anos. Além disso, dentre a amostra, 42% dos pacientes utilizavam medicamentos antidepressivos, sendo o escitalopram (inibidor seletivo da recaptação de serotonina) o mais prescrito; e 90% dos pacientes apresentaram algum tipo de potencial interação, que ocorreram com quaisquer medicamentos prescritos para o tratamento. Dos pacientes que utilizavam antidepressivos, 62% tiveram interações contraindicadas e todos apresentaram pelo menos um caso de interação maior. Os medicamentos mais relacionados a interações medicamentosas contraindicadas foram a dipirona e a metoclopramida. Conclusão: Os resultados deste estudo demonstraram um elevado número de interações medicamentosas contraindicadas envolvendo medicamentos antidepressivos. Nesse contexto, verifica-se a importância de monitorar e adequar a farmacoterapia desses pacientes.(AU)

Justificación y objetivos: El cáncer es una enfermedad crónico-degenerativa, que tiene su diagnóstico frecuentemente asociado a angustia mental, dudas e inseguridad, lo que puede resultar síntomas depresivos, que necesitarán, a menudo, medidas farmacológicas para tratarlos. Sin embargo, los pacientes con cáncer muchas veces usan varios medicamentos (polifarmacia), lo que aumenta las posibilidades de interacciones farmacológicas. Este estudio propone evaluar el uso de antidepresivos en pacientes con cáncer hospitalizados y las posibles interacciones farmacológicas que proceden de sus prescripciones. Métodos: Estudio transversal, prospectivo, descriptivo y analítico realizado con pacientes con cáncer de edad superior a 18 años, ingresados en un hospital en el Sur de Brasil y conscientes de su diagnóstico. Las interacciones farmacológicas más grandes y contraindicadas se analizaron utilizando las bases de datos Micromedex y Lexicomp. Resultados: La muestra consistió en 50 pacientes, el 54% eran mujeres y el promedio de edad fue de 53,6 (±15,3) años. El 42% de los pacientes utilizaban fármacos antidepresivos, de los cuales el escitalopram (inhibidor selectivo de la recaptación de serotonina) fue el más recetado; el 90% de los pacientes tuvieron alguna interacción que ocurrió con cualquier medicamento recetado para el tratamiento. De los pacientes que usaban antidepresivos, el 62% tuvieron interacciones contraindicadas y todos presentaron, al menos, un caso de interacción mayor. Los fármacos más relacionados con las interacciones farmacológicas contraindicadas fueron dipirona y metoclopramida. Conclusión: Los resultados de este estudio demostraron un alto número de interacciones farmacológicas contraindicadas que involucran fármacos antidepresivos. En este contexto, se verifica la importancia de monitorear y ajustar la farmacoterapia de estos pacientes.(AU)

Humans , Drug Interactions , Medical Oncology , Antidepressive Agents , Antineoplastic Agents , Drug Therapy
Arch. argent. pediatr ; 119(1): 44-50, feb. 2021. tab, ilus
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1147085


Objetivo. Determinar la adherencia de pacientes oncológicos pediátricos a la medicación oral del mantenimiento y conocer sus creencias sobre la medicación.Población y métodos. Durante 2018-19, se recogió información de padres, adolescentes y oncólogos en seis hospitales públicos pediátricos de la Argentina. Se administraron cuestionarios de adherencia (Simplified Medication Adherence Questionnaire) y de creencias sobre la medicación (Beliefs About Medicines Questionnaire). Se consideró adherente a quien refirió tomar la medicación sin saltear dosis y respetando el tiempo de ayuno.Resultados. N = 203 pacientes. La adherencia informada por los padres fue del 75 %; la estimada por los oncólogos, del 82 %, y la referida por adolescentes, del 45 %. Las variables que mostraron asociación con la adherencia fueron solvencia económica, diagnóstico, hospital tratante, cantidad de hijos a cargo, tratamientos oncológicos realizados y existencia de obstáculos en el cumplimiento. Esta muestra no percibía los medicamentos como dañinos, pero consideró que se los utilizaba abusivamente. La mayoría percibía la necesidad de tomar la medicación antineoplásica para mantener/recuperar la salud, pero también expresó preocupaciones. La percepción sobre la medicación fue similar entre los padres y los adolescentes, y no se asoció con el nivel de adherencia.Conclusiones. La adherencia informada por los padres en esta muestra fue del 75 %. Los padres y los pacientes percibían la medicación como necesaria y manifestaron preocupaciones vinculadas al tratamiento

Objective. To determine the adherence to oral maintenance medication among pediatric cancer patients and know their beliefs about medications.Population and methods. Information was obtained from parents, adolescents, and oncologists from six public children's hospitals of Argentina during 2018 and 2019. Questionnaires on adherence (Simplified Medication Adherence Questionnaire) and beliefs about medication (Beliefs About Medicines Questionnaire) were administered. Patients were considered adherent if they referred taking their medication without missing a dose and complying with fasting time.Results. N = 203 patients. Parent-reported adherence was 75 %; adherence estimated by oncologists, 82 %; and that referred by adolescents, 45 %. The outcome measures associated with adherence were financial solvency, diagnosis, treating hospital, number of children under the care of the caregiver, cancer treatments received, and presence of barriers in compliance. Sample subjects did not perceive medications as harmful, but considered they were overused. Most subjects perceived the necessity to take antineoplastic agents to maintain or recover their health, but also expressed their concerns. The perception about medication was similar between parents and adolescents, and was not associated with the level of adherence.Conclusions. In this sample, parent-reported adherence was 75 %. Parents and patients perceived a necessity for medication and expressed their concerns about treatment.

Humans , Male , Female , Infant , Child, Preschool , Child , Adolescent , Medication Adherence , Treatment Adherence and Compliance , Antineoplastic Agents , Leukemia , Surveys and Questionnaires , Maintenance
Arch. argent. pediatr ; 119(1): e70-e74, feb. 2021. tab, ilus
Article in Spanish | LILACS, BINACIS | ID: biblio-1147277


El cáncer papilar de tiroides es el tumor tiroideo más común en la infancia. En estadios avanzados, puede presentarse con cuadro de insuficiencia respiratoria. El tratamiento de elección es la tiroidectomía total y iodo radiactivo. En tumores irresecables, se debería considerar terapia con inhibidores multicinasa.Niña de 10 años de edad derivada por insuficiencia respiratoria progresiva. Se realizó el diagnóstico de cáncer papilar de tiroides con metástasis pulmonares. Por presentar un tumor irresecable no pasible de cirugía, se indicó el uso compasivo de lenvatinib, que mostró una rápida y favorable respuesta clínica con resolución de la insuficiencia respiratoria al noveno día del tratamiento.El diagnóstico temprano de cáncer papilar de tiroides previene la grave morbilidad respiratoria ocasionada por diagnósticos tardíos. Podría considerarse el uso de lenvatinib como alternativa previa a las terapias de primera línea (cirugía e iodo radiactivo) en casos de enfermedad con gran compromiso local y a distancia.

Papillary thyroid cancer is the most common thyroid tumor in childhood. In advanced stages, it can present with respiratory failure. The treatment of choice is total thyroidectomy and radioactive iodine. In cases of unresectable tumors, therapy with multikinase inhibitors should be considered. A 10-year-old girl was referred for progressive respiratory failure. A diagnosis of papillary thyroid cancer with pulmonary metastases was made. Due to the presence of an unresectable tumor not subject to surgery, the compassionate use of lenvatinib was indicated, showing a rapid and favorable clinical response with resolution of respiratory failure on the ninth day.Early diagnosis of papillary thyroid cancer prevents severe respiratory morbidity caused by late diagnoses. The use of lenvatinib should be considered as a previous step towards first-line therapies (surgery and radioactive iodine) in cases with great local and distant involvement.

Humans , Female , Child , Thyroid Cancer, Papillary/drug therapy , Respiratory Insufficiency , Combined Modality Therapy , Thyroid Cancer, Papillary/diagnosis , Neoplasm Metastasis , Antineoplastic Agents/therapeutic use
Bol. latinoam. Caribe plantas med. aromát ; 20(1): 28-37, 2021. ilus, tab
Article in English | LILACS | ID: biblio-1284403


Several investigations have demonstrated Dicranopteris linearis (Burm.f.) Underw. (Gleicheniaceae) plant extracts possess numerous health-promoting properties. This review is aimed to summarize and highlight the potential possess by D. linearisto be developed into future pharmacological entity especially as anticancer agent. This study used several electronic search engines to compile and integrate a number of scientific publications related with D. linearis. Scientifically, D. linearishas been reported to have antinociceptive, anti-inflammatory, antipyretic, chemopreventive and antioxidant properties which can be linked to its potential to treat various kinds of ailments including inflammatory-related diseases and cancer. A number of scientific evidences related with anticancer studies suggested the ability of D. linearis-based phytochemicals to act as potent anticancer lead compounds. In conclusion, D. linearis has the potential to be developed into potent anticancer agent as depicted by a number of isolated phytochemicals which can work synergistically to contribute to its anticancer properties.

Varias investigaciones han demostrado que los extractos de la planta Dicranopteris linearis (Burm.f.) Underw. (Gleicheniaceae) poseen numerosas propiedades promotoras de la salud. El objetivo de esta revisión es resumir y resaltar el potencial que posee D. linearispara convertirse en una entidad farmacológica futura, especialmente como agente anticancerígeno. Este estudio utilizó varios motores de búsqueda electrónicos para compilar e integrar una serie de publicaciones científicas relacionadas con D. linearis. Científicamente, se ha informado que D. linearis tiene propiedades antinociceptivas, antiinflamatorias, antipiréticas, quimiopreventivas y antioxidantes que pueden estar vinculadas a su potencial para tratar varios tipos de dolencias, incluidas las enfermedades asociadas a inflamación y el cáncer. Una serie de evidencias científicas relacionadas con los estudios anticancerosos sugirieron la capacidad de los fitoquímicos basados en D. linearis para actuar como potentes compuestos anticancerígenos. En conclusión, D. linearis tiene el potencial de convertirse en una fuente de potentes agentes anticancerígeno, como se describe en una serie de fitoquímicos aislados que pueden actuar de forma sinérgica para contribuir a sus propiedades anticancerígenas.

Humans , Plants, Medicinal , Plant Extracts/therapeutic use , Tracheophyta/chemistry , Antineoplastic Agents/therapeutic use , Plant Extracts/chemistry , Phytochemicals , Antineoplastic Agents/chemistry , Antioxidants