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1.
Saude e pesqui. (Impr.) ; 15(3): e9653, jul./set. 2022.
Article in English | LILACS-Express | LILACS | ID: biblio-1411436

ABSTRACT

Diabetes mellitus, tabagismo e dislipidemia são mais prevalentes em pacientes com doença pulmonar obstrutiva crônica (DPOC), a quarta causa de mortalidade no mundo. Este estudo empregou um modelo de doença pulmonar em ratos Wistar que incorporou esses três fatores de risco e investigou os efeitos da Baccharis trimera, uma planta medicinal amplamente utilizada, uma vez que nenhum estudo avaliou seus efeitos pulmonares. Os ratos diabéticos e dislipidêmicos foram expostos à fumaça de cigarro por 4 semanas e tratados com veículo (grupo C-), extrato de B. trimera (HEBT), ou sinvastatina+insulina, por 2 semanas. O lavado broncoalveolar foi realizado para avaliar a inflamação. Os pulmões foram coletados para análises histopatológicas e do estado redox. Foi observada diminuição do peso corporal, aumento do estresse oxidativo, inflamação e alterações histopatológicas no grupo C-. HEBT reverteu essas alterações e apresentou efeito antiinflamatório moderado. O tratamento com HEBT apresentou efeitos promissores para a DPOC.


Diabetes mellitus, smoking, and dyslipidemia are more prevalent in patients with chronic obstructive pulmonary disease (COPD), the fourth leading cause of mortality worldwide. This study employed a model of lung disease in Wistar rats that incorporated these three risk factors, and investigated the effects of Baccharis trimera, a widely used medicinal plant, since no previous studies have evaluated its pulmonary effects. The diabetic and dyslipidemic rats were exposed to smoke for 4 weeks and treated with vehicle (C- group), an extract of B. trimera (HEBT), or simvastatin+insulin, for 2 weeks. The bronchoalveolar lavage was performed to evaluate inflammation. The lungs were collected for histopathological and redox state analyses. A decrease in body weight, an increase in oxidative stress, inflammation, and histopathological changes were observed in C- group. HEBT reversed these alterations and had a moderate antiinflammatory effect. Treatment with HEBT present promising effects for COPD.

2.
J. coloproctol. (Rio J., Impr.) ; 38(1): 90-93, Jan.-Mar. 2018. tab
Article in English | LILACS | ID: biblio-894022

ABSTRACT

ABSTRACT Objectives: The present review intended to present a critical overview of the methodological and experimental advances concerning tridimensional cell culture models within the scope of gastrointestinal research. Methods: A literature review was performed and some of the main published articles in the area were mentioned. Main results: Classic studies and high impact results were presented, starting from the pioneer works with gastrointestinal organoids, with a small gut organoid, to the achievement of guts-on-a-chip and multi-organ-chips. It was also discussed which implications the construction of such co-cultures bring, as well as future applications arising from these new methodologies. Conclusions: Despite the still discrete number of publications, in quantitative terms, there are qualitative promising and consistent results addressing physiopathological aspects and new therapeutic perspectives of tridimensional in vitro cultures in the gastroenterology field. It is expected, thus, that such new methodological approaches, including organoids and guts-on-a-chip, may contribute decisively to the advance in knowledge on basic aspects, as well as on the translation to new therapeutic approaches in gastrointestinal diseases.


RESUMO Objetivos: A presente revisão visou apresentar uma abordagem crítica dos avanços metodológicos e experimentais referentes a modelos de cultura celular tridimensionais no âmbito do sistema gastrintestinal. Métodos: Foi realizada revisão da literatura com ênfase nos principais artigos publicados na área. Resultados principais: São apresentados trabalhos clássicos e resultados de maior impacto, desde os trabalhos pioneiros com organoides do sistema gastrintestinal, com intestino delgado, até a obtenção de guts-on-a-chip e multi-organ-chips. Discutiu-se, ainda, as implicações decorrentes da elaboração de tais co-culturas, bem como as futuras aplicações decorrentes dessas novas metodologias. Conclusões: Apesar do número ainda discreto de publicações, em termos quantitativos, há, qualitativamente, resultados promissores e consistentes abordando aspectos fisiopatológicos e de novas perspectivas terapêuticas em gastrenterologia decorrentes das culturas tridimensionais in vitro. É esperado, portanto, que essas novas abordagens metodológicas incluindo organoides e guts-on-a-chip possam contribuir decisivamente para o avanço no conhecimento sobre de aspectos básicos, bem como para a translação do conhecimento para novas abordagens terapêuticas em doenças gastrintestinais.


Subject(s)
Humans , Animals , Organoids/physiopathology , Cell Culture Techniques/methods , Gastrointestinal Diseases/therapy
3.
Article in Portuguese | LILACS | ID: biblio-964823

ABSTRACT

Introdução: As células-tronco mesenquimais (CTM) têm despertado interesse de vários grupos de pesquisa em função do grande potencial de aplicabilidade em terapia celular e medicina regenerativa. Nesse contexto, o tecido adiposo vem recebendo grande destaque como importante fonte para obtenção de CTM. Os protocolos utilizados atualmente para o isolamento das células-tronco derivadas do tecido adiposo (ADSC) empregam, de forma geral, o método de digestão enzimática com colagenase extraída de bactéria (Clostridium histolyticun), que pode conter contaminantes, como endotoxinas e outros peptídeos que, eventualmente, poderão resultar em reações adversas nos procedimentos de terapia celular em pacientes humanos. Objetivo: Pretendeu-se no presente estudo adequar e propor uma nova abordagem empregando a metodologia de dissociação mecânica para isolamento de CTM derivadas de tecido adiposo de ratos. Métodos: As células cultivadas foram analisadas quanto ao potencial de adesão, proliferação e tempo de duplicação celular, por meio de uma curva de crescimento. As células isoladas e cultivadas a partir do tecido adiposo foram também analisadas quanto ao potencial de diferenciação in vitro nas linhagens adipogênica, condrogênica e osteogênica. Resultados: Os resultados mostraram que o tempo de duplicação (velocidade de crescimento) da população celular isolada por dissociação mecânica é mais expressivo quando comparado com a técnica de digestão enzimática. As células isoladas do tecido adiposo apresentaram potencial de diferenciação nas linhagens osteogênica, condrogênica e adipogênica. Conclusão: Os resultados obtidos permitem concluir que a metodologia de dissociação mecânica apresenta-se como uma alternativa viável, de baixo custo e, como tal, extremamente promissora no sentido de permitir que a colagenase de origem bacteriana (Clostridium histolyticun) torne-se um componente prescindível para isolamento e cultivo de células provenientes do tecido adiposo.


Background: Mesenchymal stem cells (MSCs) have attracted interest of several research groups due to the large potential applicability in cell therapy and regenerative medicine. In this context, adipose tissue has received high profile as an important source in order to obtain MSC. The protocols currently suggested for the isolation and culture of adipose- -derived stem cells (ADSC) utilize, in general, the enzymatic digestion method with bacterial collagenase (Clostridium histolyticun) which may contain contaminants such as endotoxin and other peptides that eventually may result in adverse reactions in the cell therapy procedures in human patients. Objective: In this context, it was intended in this study to propose a new methodological approach of mechanical dissociation for isolating and culture of adipose-derived mesenchymal stem cells. Methods: The cultured cells were analyzed for potential adhesion, proliferation and cell doubling time, through a growth curve lineages The cells were also analyzed according to potential for differentiation in adipogenic, chondrogenic and osteogenic lineages. Results: The results showed that the doubling time of the cell population isolated by mechanical dissociation is faster when compared to the enzymatic digestion technique. The isolated cells from adipose tissues howed potential for differentiation in cell lineages osteogenic, adipogenic and chondrogenic. Conclusion: The obtained results allow us to conclude that the methodology of mechanical dissociation, presented in this paper, is a viable, low cost and therefore an extremely promising alternative in order to permit that the bacterial collagenase, from Clostridium histolyticun, become a dispensable component for isolation and cultivation of adipose-derived stem cells.


Subject(s)
Animals , Rats , Stem Cells , Adipose Tissue , Collagenases/isolation & purification , Colony-Forming Units Assay/standards , Rats, Wistar
4.
Biosci. j. (Online) ; 32(4): 1092-1102, july/aug. 2016. tab, ilus
Article in English | LILACS | ID: biblio-965657

ABSTRACT

The study evaluated the histomorphometrical aspects of testis and epididymis of adult rats with pulmonary emphysema experimentally induced by exposure to cigarette smoke for 30 weeks. Previous studies related to effects of the cigarette smoke on male reproductive tissue were performed in relatively shorter time periods and thus, it does not allow a direct correlation between smoke exposure and damage to reproductive structures like testis and epididymis. In order to evaluate the effect of cigarette smoke for long period on the testis and epididymis, twelve adult Wistar rats were divided into two groups: Control (CG; exposed to ambient air) and Smoking (SG; exposed to cigarette smoke). The weight of the testes, epididymides, seminal glands and prostate were not affected (p>0.05) by experimental treatment. In the SG, the testes presented cellular desquamation, significant decrease in the number of germ cells and Sertoli cell, and reduction (p<0.05) in area and diameter of seminiferous tubules. The exposure of animals to cigarette smoke did not promoted histological changes in the epididymis, but decreased significantly the ductular area and epithelial height in the caput and corpus regions. It was concluded that testis was more susceptible than the epididymis to the effects of cigarette smoke constituents in rats with pulmonary emphysema experimentally induced by prolonged cigarette-smoke exposure.


O estudo avaliou os aspectos histomorfométricos dos testículos e epidídimos de ratos adultos induzidos experimentalmente ao enfisema pulmonar por exposição à fumaça de cigarro, durante 30 semanas. Estudos prévios relacionados aos efeitos da fumaça de cigarro sobre o aparelho reprodutor masculino foram realizados com tempos de exposição relativamente curtos e, dessa forma, não permitem estabelecer uma correlação direta entre exposição à fumaça e danos às estruturas reprodutoras, como testículo e epidídimo. Buscando, portanto, avaliar o efeito da fumaça de cigarro sobre os testículos e epidídimos de animais expostos por longos períodos à fumaça de cigarro, doze ratos albinos da linhagem Wistar foram divididos em dois grupos: Controle (GC; expostos ao ar ambiente) e Tabagista (GT; expostos à fumaça de cigarro). Os pesos dos testículos, epidídimos, glândulas seminais e próstata não foram afetados (p>0,05) pelo tratamento experimental. No GT, os testículos apresentaram descamação celular, diminuição significativa no número de células germinativas e células de Sertoli, além de uma redução (p<0,05) na área e diâmetro dos túbulos seminíferos. A exposição dos animais à fumaça de cigarro não promoveu alterações histológicas nos epidídimos, mas diminuiu significativamente a área ductular e a altura epitelial nas regiões de cabeça e cauda. Concluiu-se que os testículos foram mais susceptíveis do que os epidídimos aos efeitos dos constituintes da fumaça de cigarro em ratos induzidos experimentalmente ao enfisema pulmonar.


Subject(s)
Pulmonary Emphysema , Reproduction , Smoke , Toxicology , Comorbidity , Tobacco Products
5.
Mem. Inst. Oswaldo Cruz ; 111(7): 443-449, tab, graf
Article in English | LILACS | ID: lil-787552

ABSTRACT

Environmentally friendly botanical larvicides are commonly considered as an alternative to synthetic larvicides against Aedes aegypti Linn. In addition, mosquito resistance to currently used larvicides has motivated research to find new compounds acting via different mechanisms of action, with the goal of controlling the spread of mosquitos. Essential oils have been widely studied for this purpose. This work aims to evaluate the larvicidal potential of Syzygium aromaticum and Citrus sinensis essential oils, either alone or in combination with temephos, on Ae. aegypti populations having different levels of organophosphate resistance. The 50% lethal concentration (LC50) of the essential oils alone and in combination with temephos and the influence of essential oils on vector oviposition were evaluated. The results revealed that essential oils exhibited similar larvicidal activity in resistant populations and susceptible populations. However, S. aromaticum and C. sinensis essential oils in combination with temephos did not decrease resistance profiles. The presence of the evaluated essential oils in oviposition sites significantly decreased the number of eggs compared to sites with tap water. Therefore, the evaluated essential oils are suitable for use in mosquito resistance management, whereas their combinations with temephos are not recommended. Additionally, repellency should be considered during formulation development to avoid mosquito deterrence.


Subject(s)
Animals , Aedes , Citrus sinensis/chemistry , Insecticides , Oils, Volatile , Syzygium/chemistry , Temefos , Drug Combinations , Insecticide Resistance/drug effects , Larva/drug effects , Mosquito Control/methods , Oviposition/drug effects , Reproducibility of Results , Time Factors
6.
Article in Portuguese | LILACS | ID: lil-758426

ABSTRACT

A prática de associações medicamentosas é comum em pacientes hospitalizados, Esta prática é muitas vezes necessária, principalmente em pacientes psiquiátricos, uma vez que, juntamente com as doenças neuropsiquiátricas, podem ocorrer outras comorbidades, Entretanto, esta prática pode favorecer a ocorrência de interações medicamentosas com consequente potencialização de diferentes efeitos adversos, Diante deste quadro, o presente trabalho teve como objetivo avaliar a ocorrência de potenciais interações medicamentosas com os benzodiazepínicos, prescritos aos pacientes internados na Clínica Psiquiátrica do Hospital Regional de Assis ? SP, a fim de gerar informações que contribuam para a eficácia do tratamento estabelecido ao paciente, Para isso, foi realizada uma análise de 100 prescrições médicas, nas quais foram avaliadas as possibilidades de ocorrência de interações medicamentosas entre os diferentes fármacos da classe dos benzodiazepínicos administrados concomitantemente, bem como com outras classes de fármacos, Por meio deste estudo, verificou-se que das 100 prescrições médicas analisadas 93 apresentaram a possibilidade de ocorrência de interações farmacológicas entre benzodiazepínicos e com outras classes de fármacos, totalizando 356 possíveis interações, Desse total, destacam-se as associações dos benzodiazepínicos com os antipsicóticos, anti-histamínicos, antiepilépticos e antidepressivos, as quais podem potencializar a manifestação de inúmeros efeitos adversos, em destaque, a exacerbação do efeito depressor do sistema nervoso central, com repercussões que podem variar desde a manifestação clínica leve até risco de êxito letal, Neste contexto, busca-se com este trabalho contribuir para uma melhor compreensão, reconhecimento e intervenção precoce ou profilática em situações clínicas decorrentes de interações farmacológicas entre diferentes classes de fármacos com os benzodiazepínicos...


The practice of drug combinations is common in hospitalized patients. This practice is often necessary, especially in psychiatric patients, since other comorbidities may occur in parallel with neuropsychiatric disorders. However, this practice may favor the occurrence of drug interactions with consequent increase of different adverse effects. Facing this situation, the present study aimed to evaluate the occurrence of potential drug interactions with benzodiazepines prescribed to hospitalized patients at the Psychiatric Clinic of the Hospital Regional de Assis - SP, in order to generate information that contributes to the effectiveness of the treatment provided to patient. To this end, an analysis of 100 medical prescriptions was performed, in which were evaluated the possibility of drug interactions between the different medications from the class of benzodiazepines concomitantly administered, as well as other classes of drugs. By means of this study, it was verified that the 100 analyzed prescriptions 93 presented the possibility of different pharmacological interactions between benzodiazepine, and with other classes of drugs, totaling 356 possible interactions. Of this total stand out the associations of benzodiazepines with antipsychotics, antihistamines, antiepileptics and antidepressants, which can enhance the expression of numerous adverse effects, highlighted the exacerbation of depressant effect on the central nervous system, with effects that can range from mild clinical manifestation until risk of lethal outcome. In this context, it seeks in this work to contribute to a better understanding, recognition and early or prophylactic intervention in clinical situations arising from interactions between different pharmacological classes of drugs with benzodiazepines...


Subject(s)
Humans , Histamine Agonists/adverse effects , Anticonvulsants/adverse effects , Antidepressive Agents/adverse effects , Antipsychotic Agents/adverse effects , Benzodiazepines/pharmacokinetics , Drug Interactions , Inpatients , Prescriptions
7.
J. coloproctol. (Rio J., Impr.) ; 35(1): 20-27, Jan-Mar/2015. ilus, graf, tab
Article in English | LILACS | ID: lil-745962

ABSTRACT

Inflammatory bowel disease, which mainly involves Crohn's disease and ulcerative rectocolitis, is an inflammatory condition of the mucosa that can afflict any segment of the gastrointestinal tract. Despite the fact that the existing therapies result in improvement in patient's symptomatology and quality of life, there is no curative treatment. Surgical treatment involves complex procedures associated with high morbidity and mortality rates. In this context, cell therapy with stem cells has emerged as a treatment with broad potential applicability. In this study, we intended to verify the efficacy of transplantation of adipose tissue-derived stem cells in rats with intestinal inflammation induced by trinitrobenzenesulfonic acid. The cell population was isolated from the adipose tissue of inguinal region of rats and processed for culture by mechanical dissociation. The animals were evaluated with respect to clinical and biochemical aspects, as well as by macroscopic, microscopic and histological analyses. In the experimental model of bowel inflammation by 2,4,6-trinitrobenzenesulfonic acid, the infusion of adipose tissue significantly reduced the presence of adhesions in the colon and adjacent organs and decreased the activity of myeloperoxidase, a marker of neutrophil infiltration in the injured mucosa. The results suggest that cell therapy with adipose tissue can promote and/or accelerate the regeneration of damaged intestinal mucosa. It is concluded that the presence of adhesions and the determination of myeloperoxidase activity provide indications that adipose tissue can promote and/or accelerate the regeneration of inflammatory bowel mucosa. (AU)


A Doença Inflamatória Intestinal (DII), consistindo principalmente da doença de Crohn e retocolite ulcerativa, é uma condição inflamatória da mucosa que pode acometer qualquer segmento do trato gastrointestinal. Apesar das terapias existentes resultarem na melhora dos sintomas e da qualidade de vida dos pacientes, não há nenhum tratamento curativo. O tratamento cirúrgico envolve procedimentos complexos associados a altas taxas de morbimortalidade. Neste contexto, a terapia celular com células-tronco desponta como opção de tratamento potencialmente promissora. Em função destes aspectos, pretendeu-se, no presente estudo, verificar a eficácia do transplante de células-tronco derivadas do tecido adiposo (ASC) em ratos com inflamação intestinal induzida por ácido trinitrobenzenosulfonico (TNBS). As ASCs foram obtidas por dissociação mecânica do tecido adiposo da região inguinal de ratos e processadas para cultivo. Os animais foram avaliados, considerando-se os aspectos clínicos e bioquímicos, além de análises macroscópica, microscópica e histológica. No modelo de inflamação intestinal induzida por TNBS, a infusão de ASCs reduziu significativamente a presença de aderências entre o cólon e órgãos adjacentes, bem como diminuiu a atividade da mieloperoxidase (MPO), um marcador da infiltração de neutrófilos na mucosa lesada. Os resultados obtidos permitem concluir que a terapia celular com ASCs pode promover e/ou acelerar o processo de regeneração da mucosa intestinal inflamada. (AU)


Subject(s)
Animals , Rats , Inflammatory Bowel Diseases , Therapies, Investigational , Cell- and Tissue-Based Therapy , Stem Cells , Trinitrobenzenesulfonic Acid , Adipose Tissue , Colon/pathology , Peroxidase , Anti-Inflammatory Agents
8.
J. venom. anim. toxins incl. trop. dis ; 21: 1-7, 31/03/2015. tab, graf
Article in English | LILACS | ID: lil-741603

ABSTRACT

Background: Toxoplasmosis is a zoonosis caused by an obligate intracellular parasite, Toxoplasma gondii, which affects warm-blooded animals including humans. Its prevalence rates usually vary in different regions of the planet. Methods: In this study, an analysis of the seroprevalence of toxoplasmosis among Brazilian students was proposed by means of IgG specific antibodies detection. The presence of anti-Toxoplasma gondiiantibodies by indirect fluorescent antibody test (IFAT) was also evaluated in order to compare it with enzyme-linked immunosorbent assay (ELISA) and to assess the use of 2,2′-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) and o-phenylenediamine dihydrochloride chromogens. Results: The IFAT method showed a seroprevalence of 22.3%. These results were similar to those obtained by ELISA (24.1%). The seroprevalence was directly estimated from the IgG avidity, which showed that in a sample of 112 students, three of them had acute infection, an incidence of 1.6% in the studied population. Conclusion: In this study, the use of different chromogenic substrates in immunoenzymatic ELISA assays did not display different sensitivity in the detection of T. gondii-reagent serum. The extrapolation of results to this population must be carefully considered, since the investigation was conducted on a reduced sample. However, it allows us to emphasize the importance of careful and well prepared studies to identify risk factors for toxoplasmosis, to adopt preventive measures and to offer guidance to at-risk populations about the disease.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Toxoplasma , Toxoplasmosis/diagnosis , Toxoplasmosis/epidemiology , Enzyme-Linked Immunosorbent Assay/methods , Seroepidemiologic Studies , Fluorescent Antibody Technique, Indirect/methods
9.
J. bras. pneumol ; 40(1): 46-54, jan-feb/2014. tab, graf
Article in English | LILACS | ID: lil-703616

ABSTRACT

OBJECTIVE: To describe a new murine model of cigarette smoke-induced emphysema. METHODS: Twenty-four male Wistar rats were divided into two groups: the cigarette smoke group, comprising 12 rats exposed to smoke from 12 commercial filter cigarettes three times a day (a total of 36 cigarettes per day) every day for 30 weeks; and the control group, comprising 12 rats exposed to room air three times a day every day for 30 weeks. Lung function was assessed by mechanical ventilation, and emphysema was morphometrically assessed by measurement of the mean linear intercept (Lm). RESULTS: The mean weight gain was significantly (approximately ten times) lower in the cigarette smoke group than in the control group. The Lm was 25.0% higher in the cigarette smoke group. There was a trend toward worsening of lung function parameters in the cigarette smoke group. CONCLUSIONS: The new murine model of cigarette smoke-induced emphysema and the methodology employed in the present study are effective and reproducible, representing a promising and economically viable option for use in studies investigating the pathophysiology of and therapeutic approaches to COPD. .


OBJETIVO: Descrever um novo modelo murino de enfisema induzido pela fumaça de cigarro. MÉTODOS: Vinte e quatro ratos Wistar foram divididos em dois grupos: o grupo fumaça de cigarro, com 12 ratos expostos à fumaça de 12 cigarros comerciais com filtro três vezes ao dia (um total de 36 cigarros por dia), sete dias por semana, durante 30 semanas e o grupo controle, com 12 animais expostos ao ar ambiente três vezes ao dia, sete dias por semana, durante 30 semanas. A função pulmonar foi avaliada por meio de ventilação mecânica, e o enfisema foi morfometricamente avaliado por meio do diâmetro alveolar médio (Lm). RESULTADOS: A média de ganho de peso foi significativamente menor (aproximadamente dez vezes menor) no grupo fumaça de cigarro do que no grupo controle. O Lm foi 25.0% maior no grupo fumaça de cigarro. Os parâmetros de função pulmonar tenderam a ser piores no grupo fumaça de cigarro. CONCLUSÕES: O novo modelo murino de enfisema induzido pela fumaça de cigarro e a metodologia empregada neste estudo são eficazes e reproduzíveis; são, portanto, uma opção promissora e economicamente viável para estudos sobre a fisiopatologia e o tratamento da DPOC. .


Subject(s)
Animals , Male , Rats , Pulmonary Emphysema/etiology , Tobacco Smoke Pollution/adverse effects , Disease Models, Animal , Rats, Wistar , Respiration, Artificial , Time Factors
10.
Rev. bras. hematol. hemoter ; 35(5): 352-357, 2013. tab, graf
Article in English | LILACS | ID: lil-694082

ABSTRACT

BACKGROUND Chronic obstructive pulmonary disease is a major inflammatory disease of the airways and an enormous therapeutic challenge. Within the spectrum of chronic obstructive pulmonary disease, pulmonary emphysema is characterized by the destruction of the alveolar walls with an increase in the air spaces distal to the terminal bronchioles but without significant pulmonary fibrosis. Therapeutic options are limited and palliative since they are unable to promote morphological and functional regeneration of the alveolar tissue. In this context, new therapeutic approaches, such as cell therapy with adult stem cells, are being evaluated. OBJECTIVE This article aims to describe the follow-up of up to 3 years after the beginning of a phase I clinical trial and discuss the spirometry parameters achieved by patients with advanced pulmonary emphysema treated with bone marrow mononuclear cells. METHODS Four patients with advanced pulmonary emphysema were submitted to autologous infusion of bone marrow mononuclear cells. Follow-ups were performed by spirometry up to 3 years after the procedure. RESULTS The results showed that autologous cell therapy in patients having chronic obstructive pulmonary disease is a safe procedure and free of adverse effects. There was an improvement in laboratory parameters (spirometry) and a slowing down in the process of pathological degeneration. Also, patients reported improvements in the clinical condition and quality of life. CONCLUSIONS Despite being in the initial stage and in spite of the small sample, the results of the clinical protocol of cell therapy in advanced pulmonary emphysema as proposed in this study, open new therapeutic perspectives in chronic obstructive pulmonary disease. It is worth emphasizing that this study corresponds to the first study in the literature that reports a change in the natural history of pulmonary emphysema after the use of cell therapy with a pool of bone marrow mononuclear cells.


Subject(s)
Humans , Cell Transplantation , Clinical Trials as Topic , Pulmonary Disease, Chronic Obstructive , Pulmonary Emphysema , Spirometry , Stem Cells
11.
Cad. saúde pública ; 24(12): 2919-2925, dez. 2008. ilus, tab
Article in Portuguese | LILACS | ID: lil-499782

ABSTRACT

As parasitoses intestinais constituem um grave problema de saúde pública, especialmente nos países subdesenvolvidos, sendo esse problema associado e agravado por condições sanitárias precárias e falta de informação. Neste trabalho foram avaliados alguns parâmetros epidemiológicos vinculados às principais enteroparasitoses em diferentes regiões da cidade de Assis, Estado de São Paulo, Brasil. Os dados foram confrontados com aqueles obtidos em um levantamento anterior referente ao ano de 1991 e apresentam uma redução de três pontos percentuais. Há indícios de que, antiparasitários estariam sendo distribuídos profilaticamente, antes dos resultados do exame parasitológico de fezes. Este fato pode levar a importantes implicações epidemiológicas e distorções analíticas. Esta conduta terapêutica pode estar ocultando condições sanitárias e/ou educacionais desfavoráveis, de forma que haveria uma baixa prevalência de parasitoses em razão de reiterados tratamentos e não pela melhoria das condições de saneamento básico e educação sanitária da população.


Intestinal parasite infections are a serious public health problem, mainly in underdeveloped countries, and are usually associated with (and aggravated by) poor sanitation and lack of information. This study evaluated a series of epidemiological parameters associated with the main intestinal parasites in different areas of the city of Assis, São Paulo State, Brazil. The data were compared with those obtained from a previous survey in 1991 and showed a reduction of three percentage points. There is evidence of prophylactic dispensing of drugs for parasites, before receiving the results of stool tests. This could have important epidemiological implications and lead to analytical distortions. This therapeutic approach could disguise unfavorable health and/or educational conditions, with a low prevalence of parasite infections due to repeated treatments rather than improvements in basic sanitation and health education for the population.


Subject(s)
Adolescent , Animals , Child , Child, Preschool , Humans , Infant , Intestinal Diseases, Parasitic/epidemiology , Sanitation/statistics & numerical data , Bias , Brazil/epidemiology , Health Surveys , Intestinal Diseases, Parasitic/prevention & control , Prevalence
12.
Rev. Soc. Bras. Med. Trop ; 32(5): 547-55, set.-out. 1999. mapas, tab, graf
Article in Portuguese | LILACS | ID: lil-268922

ABSTRACT

Foi estudada a distribuiçäo dos enteroparasitos mais freqüentes na populaçäo de Assis, Säo Paulo, de 1990 a 1992. Foram analisados 18.366 exames oriundos de seis postos de atendimento sanitário (PAS): Vila Marialves, Vila Progresso, Centro, Vila Xavier, Vila Fiúza e Vila Bonfim. A prevalência de enteroparasitoses geral foi 23,3 por cento. Os enteroparasitos mais encontrados foram: Giardia intestinalis (8,7 por cento), Ascaris lumbricoides (5,5 por cento), Trichuris trichiura (2,4 por cento) e Hymenolepis nana (1,9 por cento). Na Vila Marialves, regiäo de baixo nível sócio-econômico essas freqüências foram, respectivamente: 17 por cento; 13,1 por cento; 5,9 por cento e 4,2 por cento. A faixa etária 3 a 12 anos apresentou maior número de indivíduos parasitados. Estabeleceu-se uma correlaçäo entre as condiçöes de saneamento básico, expressos pelo número de ligaçöes de água e esgoto, e a freqüência de parasitoses. Houve queda na freqüência de parasitoses nos PAS entre 1990 e 1992, coincidindo com o aumento do número de ligaçöes de água e esgoto nestas regiöes


Subject(s)
Humans , Child, Preschool , Child , Adolescent , Basic Sanitation , Intestinal Diseases, Parasitic/etiology , Poverty Areas , Sewerage , Water Supply , Ascaris lumbricoides/isolation & purification , Brazil/epidemiology , Intestinal Diseases, Parasitic/epidemiology , Feces/parasitology , Giardia lamblia/isolation & purification , Hymenolepis/isolation & purification , Intestines/parasitology , Health Surveys , Trichuris/isolation & purification
13.
Mem. Inst. Oswaldo Cruz ; 92(3): 427-9, May-Jun. 1997. graf
Article in English | LILACS | ID: lil-189319

ABSTRACT

Goyazensolide, a component extracted of Eremanthus goyazensis showed a significant inhibitory effect on egg-laying of Schistosoma mansoni during in vitro cultivation of this parasite. Motility of the worms was also reduced under treatment with goyazensolide and 90 per cent of mortality was reached with concentration up to 4 µg/ml. It has found that separated worms were more susceptible than worms pairing during drug exposition and female alone was significantly more susceptible than male worm in the same conditions of in vitro cultivation. Natural products isolated from plants represent potencial sources for the identification of structures useful for the design of alternative molecules to be used as new drug substances against several infectious deseases.


Subject(s)
Animals , In Vitro Techniques , Plants, Medicinal/drug effects , Schistosoma mansoni/drug effects , Anthelmintics/administration & dosage , Lactones/administration & dosage , Schistosomiasis/therapy
14.
Rev. Inst. Med. Trop. Säo Paulo ; 36(5): 395-402, set.-out. 1994. ilus
Article in Portuguese | LILACS | ID: lil-154312

ABSTRACT

O sistema enzimatico fenoloxidase (EC1.10.3.1, EC1.10.3.2) esta amplamente distribuido entre os seres vivos, tendo sido descrito em diferentes especies do reino animal e vegetal. Apesar de desempenhar um papel fundamental na formacao da capsula ou parede dos ovos de trematodeos, o sistema enzimatico fenoloxidase (PO) tem sido pouco estudado nesses organismos. No presente trabalho sao apresentados os resultados iniciais de imunizacoes de coelhos contra PO de femeas adultas de S. mansoni e tirosinase de cogumelo (Sigma). As analises imunologicas, realizadas atraves de imunodifusao dupla (teste de Ouchterlony) e imunoeletroforese, revelaram identidade imunitaria parcial entre PO de machos e femeas....


Subject(s)
Animals , Male , Female , Mice , Rabbits , Monophenol Monooxygenase/isolation & purification , Schistosoma mansoni/enzymology , Schistosomiasis mansoni/immunology , Electrophoresis, Polyacrylamide Gel , Schistosomiasis mansoni/enzymology , Schistosomiasis mansoni/parasitology
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