Estudo da ativação e modulação da resposta imune contra a esporotricose experimental, a partir de vesículas extracelulares purificadas de células dendríticas / Study of the activation and modulation of the immune response against experimental sporotrichosis, using extracellular vesicles purified from dendritic cells

A esporotricose é uma zoonose micótica emergente e subcutânea, que afeta a pele, o sistema linfático e outros órgãos de humanos e animais. Assim como outras doenças infecciosas fúngicas, se torna ainda mais grave quando acomete pacientes imunossuprimidos. Essa infecção possui distribuição global e é endêmica em algumas regiões do Brasil e de outros países tropicais e subtropicais, sendo um problema de saúde pública importante em nosso país. A doença é causada por um complexo de pelo menos quatro espécies patogênicas, incluindo o Sporothrix brasiliensis (S. brasiliensis). A resposta imunológica contra estas espécies ainda não é completamente elucidada, mas estruturas como as vesículas extracelulares (VEs) poderiam transportar componentes importantes que podem contribuir na modulação e no controle desta importante infecção. Assim, o objetivo deste trabalho, é analisar a participação das VEs de células dendríticas (DCs) naive e VEs de DCs previamente primadas com leveduras de S. brasiliensis e primadas com VEs do fungo, na resposta imune contra a esporotricose experimental em modelos murinos. Para isso, as DCs obtidas da medula óssea de camundongos, foram cultivadas com leveduras de S. brasiliensis ou com VEs do fungo e posteriormente, VEs totais das DCs foram purificadas a partir de ultracentrifugação e analisadas quanto a sua participação na modulação da resposta imunológica. Essas VEs foram utilizadas em protocolo profilático em modelos murinos, previamente a infecção subcutânea experimental. Foi observado o diâmetro médio das lesões no decorrer de 35 dias de infecção e a carga fúngica da lesão na pele. Os resultados obtidos mostram que as VEs de DCs naive, e VEs de DCs previamente cultivadas com leveduras do fungo ou com VEs fúngicas, são capazes de modular a carga fúngica. Os grupos que receberam VEs de DCs de forma profilática, de modo geral apresentaram diminuição significativa da carga fúngica em relação ao grupo controle. Na análise comparativa apenas dos grupos que receberam a profilaxia, observa-se que o uso de VEs de DCs naive, resultam em uma carga fúngica maior que o uso de VEs de DCs previamente ativadas, e quando as DCs são ativadas com levedura, essa carga fúngica é a menor. Quando analisamos o perfil de citocinas na pele de camundongos tratados com as VEs previamente a infecção, observamos aumento de IFN-γ, TNF-α, IL-17 e IL-10 principalmente nos animais previamente tratados com VEs de DCs que foram ativadas com leveduras. Em relação às citocinas produzidas, podemos sugerir até o momento, uma resposta imunológica mista, mas que de alguma maneira, ainda não esclarecida, devem contribuir para melhor controle do processo infeccioso in vivo. Em relação a linfoproliferação, observa-se principalmente um aumento de linfócitos T CD4+ quando acrescentamos VEs de DCs que não foram previamente ativadas, mostrando uma ação de uma resposta mais inespecífica. Vale ressaltar que todos os protocolos profiláticos foram capazes de modular e minimizar o crescimento fúngico, quando comparados ao controle, ou seja, as VEs contribuíram com o controle da infecção e agiram a favor do hospedeiro, demonstrando um caráter protetivo

Sporotrichosis is an emerging subcutaneous mycotic zoonosis that affects the skin, lymphatic system, and other organs of humans and animals, and like other infectious fungal diseases, it becomes even more serious when it affects immunosuppressed patients. This infection has a global distribution and is endemic in some regions of Brazil and other tropicals and subtropicals countries, being an important public health problem in our country. The disease is caused by a complex of at least four pathogenic species, including Sporothrix brasiliensis (S. brasiliensis). The immunological response against these species has not yet been completely elucidated, but structures such as extracellular vesicles (EVs) could carry important components that can contribute to the modulation and control of this important infection. Thus, the objective of this work is to analyze the participation of EVs from naïve dendritic cells (DCs) and EVs from DCs previously primed with S. brasiliensis yeast and primed with EVs from the fungus, in the immune response against experimental sporotrichosis in murine models. For this, DCs obtained from the bone marrow of mice were cultivated with S. brasiliensis yeast or EVs from the fungus, and subsequently, total EVs from the DCs were purified through ultracentrifugation and analyzed for their participation in modulating the immune response. These EVs were used in a prophylactic protocol in murine models, before experimental subcutaneous infection. The average diameter of the lesions over 35 days of infection and the fungal load of the lesion on the skin were observed. The results obtained show that EVs from naïve DCs, and EVs from DCs previously cultured with yeast or fungal EVs, are capable of modulating the fungal load. The groups that received EVs from DCs prophylactically generally showed a significant decrease in fungal load compared to the control group. In the comparative analysis of only the groups that received prophylaxis, it was observed that the use of EVs from naïve DCs results in a higher fungal load than the use of EVs from previously activated DCs, and when the DCs are activated with yeast, this load fungal is smaller. When we analyzed the cytokine profile in the skin of mice treated with EVs before infection, we observed an increase in IFN-γ, TNF-α, IL-17, and IL-10, mainly in animals previously treated with EVs from DCs that were activated with yeast. About the cytokines produced, we can so far suggest a mixed immunological response, but in some way, not yet clear, they should contribute to better control of the infectious process in vivo. About lymphoproliferation, an increase in CD4+ T lymphocytes is mainly observed when we add EVs from DCs that were not previously activated, showing a more nonspecific response. It is worth highlighting that all prophylactic protocols were able to modulate and minimize fungal growth, when compared to the control, that is, EVs contributed to the control of the infection and acted in favor of the host, demonstrating a protective character

Síndrome inflamatória multissistêmica em crianças infectadas por coronavírus: uma revisão integrativa / Multisystemic inflamatory syndrome in children infected by coronavirus: an integrative review / Síndrome inflamatorio multisistémico en niños infectados por coronavirus: una revisión integradora

Durante a pandemia de COVID-19, foram observadas manifestações atípicas em pacientes pediátricos em diversas regiões do mundo, e o conjunto desses sintomas caracterizou uma nova patologia denominada Síndrome Inflamatória Multissistêmica em Crianças (MIS-C), ou Síndrome Inflamatória Multissistêmica Pediátrica Temporariamente associada ao COVID-19 (PIMS- TS). O objetivo desta revisão foi analisar as manifestações clínicas e as possíveis complicações relacionadas a tal quadro inflamatório. Foi realizada uma busca por artigos científicos nas bases de dados Embase, PubMed e Web of Science, por meio da combinação dos descritores "MIS-C", "PIMS- TS" e "COVID-19". Após a análise dos artigos encontrados, e considerando critérios de inclusão e exclusão, foram selecionados 15 estudos para compor esta revisão. A maioria dos estudos mencionaram complicações gastrointestinais, cardiovasculares, respiratórias e mucocutâneas. Ademais, foram encontrados marcadores que indicavam estado inflamatório generalizado e coagulopatia. Assim, concluiu-se que MIS-C provavelmente é uma síndrome manifestada após a infecção por SARS-CoV-2, podendo ocasionar quadros mais graves, mas com baixas taxas de mortalidade.

During the COVID-19 pandemic, atypical manifestations were observed in pediatric patients in different regions of the world, and the set of these symptoms characterized a new pathology called Multisystemic Inflammatory Syndrome in Children (MIS-C), or Pediatric Multisystemic Inflammatory Syndrome Temporarily associated with COVID-19 (PIMS-TS). The purpose of this review was to analyze the clinical manifestations and possible complications related to such an inflammatory condition. A search for scientific articles was carried out in the databases Embase, PubMed and Web of Science, by combining the descriptors "MIS-C", "PIMS-TS" and "COVID-19". After analyzing the articles found, and considering inclusion and exclusion criteria, 15 studies were selected to compose this review. Most studies mentioned gastrointestinal, cardiovascular, respiratory and mucocutaneous complications. In addition, markers were found that indicated generalized inflammatory status and coagulopathy. Thus, it was concluded that MIS-C is probably a syndrome manifested after infection by SARS-CoV-2, which can cause more severe conditions, but with low mortality rates.

Durante la pandemia de COVID-19 se observaron manifestaciones atípicas en pacientes pediátricos de diferentes regiones del mundo, y el conjunto de estos síntomas caracterizó una nueva patología denominada Síndrome Inflamatorio Multisistémico en Niños (SMI-C), o Síndrome Inflamatorio Multisistémico Pediátrico Asociado Temporalmente a COVID-19 (SIPM-TS). El propósito de esta revisión fue analizar las manifestaciones clínicas y las posibles complicaciones relacionadas con dicha condición inflamatoria. Se realizó una búsqueda de artículos científicos en las bases de datos Embase, PubMed y Web of Science, combinando los descriptores "MIS-C", "PIMS- TS" y "COVID-19". Tras analizar los artículos encontrados, y teniendo en cuenta los criterios de inclusión y exclusión, se seleccionaron 15 estudios para componer esta revisión. La mayoría de los estudios mencionaron complicaciones gastrointestinales, cardiovasculares, respiratorias y mucocutáneas. Además, se encontraron marcadores que indicaban un estado inflamatorio generalizado y coagulopatía. Así pues, se concluyó que el SMI-C es probablemente un síndrome que se manifiesta tras la infección por el SARS-CoV-2, que puede causar cuadros más graves, pero con bajas tasas de mortalidad.

Etiology and clinical characteristics of fever of unknown origin in 357 pediatric patients / 中华儿科杂志

Objective: To explore the etiologies and clinical characteristics of fever of unknown origin (FUO) and to provide clues for early diagnosis of FUO. Methods: The data about etiology, age, sex, clinical course, length of hospital stays and the expression levels of inflammatory factors in fever phase of 357 pediatric inpatients who were diagnosed with FUO in Children's Hospital of Fudan University from 1 January 2016 to 31 December 2020 were collected and retrospectively analyzed. Participants were grouped into infectious disease, inflammatory disease, malignancy and others and according to the classification of diseases and also grouped into those aged<1 year, 1-<3 years,3-<6 years, 6-<12 years and 12-<18 years. Comparisons between groups were performed using the Mann-Whitney U test, Kruskal-Wallis H test and χ² test. Results: Among the 357 patients (217 males and 140 females). The age of onset was 3.9 (1.3, 9.2) years and visiting age was 5.1 (2.0, 9.3) years. The time-consuming of diagnosis was 94 (66, 213) days. The hospital stay was 8 (6, 14) days. The most frequently identified cause of FUO was infectious diseases (163 cases, 45.7%), followed by non-infectious inflammatory diseases (133 cases, 37.2%), malignancy (21 cases, 5.9%) and others (40 cases, 11.2%). The patients at younger age were more likely to be attacked by malignancy, oncologic diagnoses, and others, nevertheless patients at older age were more likely to be attacked by non-infectious inflammatory diseases oppositely (9.8 (3.6, 11.5) vs. 3.0 (1.2, 7.0), 2.3 (1.0, 5.2), 0.9 (0.5, 1.8) years, U=41.30, 15.94, 37.08, all P<0.01);106 (65%) patients were male, and 57 (35%) patients were female. This result indicated that boys were more susceptible to infectious diseases (χ²=14.73, P<0.01). Analysis of inflammatory factors in serum among 103 patients, interleukin (IL)-6 level in 40 infectious diseases patients (9 (2, 38) ng/L) was significantly lower than those of 6 tumor patients (89 (64, 599) ng/L) and 57 non-infectious inflammatory diseases patients (25 (8, 78) ng/L, U=51.05, 15.70, both P<0.05), no significant difference was observed in IL-2, IL-4, IL-10, tumor necrosis factor α and interferon among the groups (all P>0.05). The patients grouped into those aged 1-<3 years and 3-<6 years were more likely to be attacked by infectious diseases (51.3% (59/115) and 57.1% (40/70)), while patients grouped into those aged 6-<12 years and 12-<18 years were more likely to be attacked by non-infectious inflammatory diseases (55.6% (65/117) and 72.4% (21/29)). Conclusions: Infectious disease is still the main cause of FUO in children and the boys are more susceptible to infectious diseases. However, the morbidity of non-infectious inflammatory diseases increases to number 1 in FUO of children over 6 years of age.

Planejamento, síntese e avaliação biológica de candidatos a fármacos: busca de inibidores epigenéticos da Sirtuína 2 Sir2 / Design, synthesis and biological evaluation of drug candidates: search for Sirtuin 2 (Sir 2) epigenetic inhibitors

As doenças negligenciadas são causadas por agentes infecciosos e parasitários, como vírus, bactérias, protozoários e helmintos. Essas doenças são prevalentes em populações de baixa renda que vivem em países em desenvolvimento e são responsáveis por incapacitar e levar milhares de pessoas à morte. Este nome se dá pois, apesar de sua grande relevância médica, recebem pouca atenção dos governos e indústrias farmacêuticas. Dentre essas doenças podemos destacar a Doença de Chagas, doença infecciosa causada pelo parasita hemoflagelado Trypanosoma cruzi. Endêmica em 21 países, com 6 a 7 milhões de pessoas infectadas resultando em 7500 mortes por ano. A quimioterapia disponível contra essa parasitose é baseada em apenas dois medicamentos, o benznidazol e o nifurtimox, ativos principalmente na fase aguda da doença e com efeitos adversos graves que comprometem a adesão ao tratamento e, além disso, apesar dos enormes esforços na pesquisa de novos agentes antichagásicos em nível nacional e internacional, na maioria realizada academicamente, ainda não foram encontradas alternativas terapêuticas para a doença, persistindo, assim, a necessidade de descoberta e desenvolvimento de novos fármacos. O início de um planejamento de um novo fármaco se dá pela definição de um alvo bioquímico a ser utilizado na busca de moléculas que possam exercer a função de inibidores ou moduladores, conforme a atividade biológica desejada. Neste sentido, as sirtuínas 2 (Sir2) são enzimas que se mostraram essenciais para o crescimento in vitro do T. cruzi em suas formas amastigota e epimastigota. No caso de tripanossomatídeos, em geral, a superexpressão de Sir2 está relacionada à sobrevivência de formas amastigotas. Assim, essas evidências indicam que a Sir2 de tripanosomatídeos tem grande potencial como alvo biológico na busca e desenvolvimento de novos fármacos antichagásicos. O objetivo principal deste projeto foi identificar moléculas que apresentaram atividade inibitória para a sirtuína 2 de T. cruzi por meio da utilização da estratégia de Planejamento de Fármacos Baseada no Ligante - Ligand Based Drug Design (LBDD) e o desenvolvimento de análogos dos inibidores da Sir2. A modificação molecular está entre algumas das técnicas tradicionais usadas no desenvolvimento racional de um fármaco, e é usada principalmente no desenvolvimento de análogos, e busca melhorar as propriedades farmacocinéticas e/ou farmacodinâmicas de um protótipo, obter propriedades de interação semelhantes ao alvo e, em alguns casos, revelar uma atividade biológica. Com este intuito, análogos do sirtinol e da salermida foram sintetizados e uma nova rota sintética utilizando o microrreator em fluxo contínuo foi desenvolvida e apresentou rendimento superior quando comparado à síntese em bancada. A partir desta metodologia foram obtidos 20 compostos. Os ensaios in vitro contra formas amastigotas do T. cruzi indicaram que 8 compostos inibiram a atividade parasitária em mais de 50%, na dose de 10 µM, sendo que alguns destes apresentaram maior inibição parasitária quando comparados ao benznidazol, o fármaco de referência e único disponível no Brasil. Com estes resultados preliminares, novos ensaios estão sendo realizados para identificar potência e mecanismo de ação destes candidatos a agentes tripanomicidas

Neglected diseases are caused by infectious and parasitic agents such as viruses, bacteria, protozoa and helminths. These diseases are prevalent in low-income populations living in developing countries and are responsible for disabling and killing thousands of people. They get this name because, despite their great medical relevance, they end up receiving little attention from governments and pharmaceutical industries. Among these diseases, we can highlight Chagas disease, an infectious endemic disease caused by the hemoflagellate parasite Trypanosoma cruzi. This disease is endemic in 21 countries, with 6 to 7 million people infected resulting in 7,500 deaths per year. Chemotherapy is based on just two drugs, benznidazole and nifurtimox, which are mainly active in the acute phase of the disease. These drugs have adverse effects that compromise adherence, even more, considering that they are not effective from the point of view of the chronic phase of the disease. Despite the enormous efforts in researching new anti-chagasic agents at the national and international level, and mostly carried out academically, therapeutic alternatives for the disease have not yet been found, thus, the need for the discovery and development of new drugs persists. Sirtuins 2 (Sir2) are enzymes that have been shown to be essential for the in vitro growth of T. cruzi in its amastigote and epimastigote forms. In the case of trypanosomatids in general, Sir2 overexpression is related to the survival of amastigote forms. Sir2 inhibitors, such as sirtinol, have shown efficacy in leishmanicides. Thus, these evidences indicate that Sir2 from trypanosomatids can be considered as a biological target in the search and development of new anti-chagasic drugs. The beginning of a new drug planning study is the definition of a biochemical target to be used in the search for molecules that can play the role of inhibitors or modulators, according to the desired biological activity. The main objective of this project was to identify molecules that presented inhibitory activity to sirtuin 2 of T. cruzi using the Ligand Based Drug Design (LBDD) strategy of planning and the development of analogues of Sir2 inhibitors. Molecular modification is a traditional technique used in the rational development of a drug, as well as the use of natural products, combinatorial chemistry, high-throughput screening (HTS), among others. Mainly used in the development of analogues, molecular modification is applied for different purposes, among them, it seeks to improve the pharmacokinetic and/or pharmacodynamic properties of a prototype, obtain target-like interaction properties and, in some cases, reveal an activity biological. For this purpose, analogues of sirtinol and salermide were synthesized and a new synthetic route using the microreactor in continuous flow was developed and presented superior yield when compared to benchtop synthesis. From this methodology, 20 compounds were obtained. in vitro assays against amastigote forms of T. cruzi indicated that 8 compounds inhibited parasitic activity by more than 50% at a dose of 10 µM, and some of these showed greater parasitic inhibition when compared to benznidazole, the reference drug, and only available in Brazil. With these preliminary results, new assays are being carried out to identify the potency and mechanism of action of these candidate trypanocidal agents

Nivel de conocimiento del cuidador primario sobre complicaciones infecciosas en el paciente pediátrico con cáncer / Knowkedge level of the primary caregiver of infectious complicatons inpediatric cancer patients

INTRODUCCIÓN: Las complicaciones infecciosas como consecuencia del cáncer y como efectos secundarios del tratamiento, son una realidad latente que enfrentan los pacientes y cuidadores. La prevención de éstas dependerá, en gran medida, de los adecuados cuidados que se brinden, especialmente en el hogar. OBJETIVO: Evaluar el nivel de conocimiento del cuidador primario sobre las complicaciones infecciosas en el paciente pediátrico con cáncer del Hospital de Especialidades del Niño y la Mujer en la ciudad de Querétaro. METODOLOGÍA: Estudio cuantitativo de corte transversal y nivel descriptivo, se contó con una muestra por conveniencia de 60 cuidadores primarios de paciente pediátrico con cáncer. Se utilizó un instrumento elaborado por los autores,para estudiar el nivel de conocimiento del cuidador primario. El instrumento está integrado por cuatro indicadores de conocimiento en las áreas de: nutrición, higiene, medidas de prevención y conocimiento de infecciones. Fue validado por medio del Método Delphi y se midió la confiabilidad con la prueba estadística de mitades partidas de Guttman. RESULTADOS: El 65% de los cuidadores tienen un conocimiento regular.La variable de conocimiento de infección es la que se observa con mayor área de oportunidad al obtener una calificación deficiente. CONCLUSIÓN: Se encontraron áreas de oportunidad para mejorar el conocimiento, específicamente en las acciones a emprender para la prevención de las infecciones. Con una adecuada intervención educativa de enfermería se pueden mejorar los conocimientos adquiridos por los cuidadores y disminuir con esto la prevalencia de infecciones.

INTRODUCTION: Infectious complications as a consequence of cancer and as secondary effects of treatment, are a latent reality that patients and caregivers will have to face, since to a large extent, the prevention of these will depend on the adequate care provided, especially in the home. OBJECTIVE: To evaluate the level of knowledge of the primary caregiver about the infectious complications in the pediatric patient with cancer of the Hospital of Specialties of Children and Women in the city of Querétaro. METHODOLOGY: A cross-sectional, descriptive level quantitative study was carried out with a convenience sample of 60 primary caregivers of a pediatric patient with cancer, an instrument prepared by authors on purpose to study the level of knowledge of the primary caregiver, made up of four indicators of knowledge in the areas of: nutrition, hygiene, prevention measures and knowledge of infection data, the instrument was validated by means of the Delphi Method and reliability was measured with the Guttman split halves statistical test. RESULTS: 65% of the caregivers were with regular knowledge, the knowledge item of infection is the one that is observed with greater area of opportunity when obtaining a deficient qualification. CONCLUSION: areas of opportunity were found to improve knowledge, specifically in the actions to be undertaken for the prevention of infections, which with an adequate educational nursing intervention could improve knowledge.

Nonadherence to treatment recommendations is a factor contributing to the clinical failure of daptomycin: Cohort study in Brazil

To evaluate the clinical outcomes of daptomycin therapy and adherence to treatment recommendations, a retrospective cohort study was conducted with patients that received daptomycin during the period of the study. The adherence and nonadherence to clinical guidelines were assessed through organism identification, dose and time of treatment, management of bacteremia, and vancomycin treatment failure. A multiple logistic regression model analyzed the association between independent variables and clinical success (dependent variable), considering 5% of statistical significance. The study presented 52 patients who received daptomycin for the treatment of bacteremia (21.1%) or infections (osteomyelitis [63.5%], synovial fluid [15.4%]). Most patients (86.5%) received daptomycin as the second line of treatment, and 51.9% achieved clinical success. The patients had a better chance of clinical success when they followed the guideline indications (OR = 16.86; 95% CI = 1.45-195.88) and the medication was prescribed by a specialist in infectious diseases (OR = 4.84; 95% CI = 1.11-21.09). The study demonstrated lower clinical success than that described in the literature because of patients who were not eligible according to the clinical guidelines. Adherence to recommendations and appropriate prescription of reserve antibiotics is important in limiting early resistance, and avoiding clinical failure and unnecessary expenditure.

The Relationship between the Etiology of Profound Prelingual Sensorineural Hearing Loss and the Results of Vestibular-Evoked Myogenic Potentials

Abstract Introduction Cervical vestibular-evoked myogenic potentials (cVEMPs) are biphasic, short latency potentials, which represent the inhibition of the contraction of the sternocleidomastoid muscle (SCM) mediated by the saccule, the inferior vestibular nerve, the vestibular nuclei and the medial vestibular spinal tract. Objective To evaluate the response of cVEMPs in individuals with profound prelingual bilateral cochlear hearing loss. Methods A prospective case-control study. A total of 64 volunteers, divided into a study group (31 patients with profound prelingual sensorineural hearing loss) and a control group (33 subjectsmatched for age and gender with psychoacoustic thresholds of ≤ 25 dB HL between 500 and 8,000 Hz) were submitted to the cVEMP exam. The causes of hearing loss were grouped by etiology and the involved period. Results The subjects of the study group aremore likely to present changes in cVEMPs compared to the control group (35.5% versus 6.1% respectively; p = 0.003), with an odds ratio (OR) of 8.52 (p = 0.009). Itmeans that they had 8.52-fold higher propensity of presenting altered cVEMP results. There were no statistically significant differences between the latencies, the interamplitude and the asymmetry index. Regarding the etiology, there was a statistically significant difference when the cause was infectious, with an OR of 15.50 (p = 0.005), and when the impairment occurred in the prenatal period, with an OR of 9.86 (p = 0.009). Conclusion The present study showed abnormalities in the sacculocolic pathway in a considerable portion of individuals with profound prelingual sensorineural hearing loss due to infectious and congenital causes, as revealed by the cVEMP results. (AU)

Políticas públicas referentes às incapacidades físicas em hanseníase na virada do século: uma década de (des)controle? / Public Policies related to Leprosy Physical Disabilities at the turn of the century: a decade of (lack of) control ?

Resumo Objetivos: Focando na década da virada do século, recuperam-se as principais diretivas das políticas públicas setoriais referentes ao controle das incapacidades físicas em hanseníase (IFH). Material e métodos: Procede-se à revisão expositivo-crítica das respectivas normas técnicas a partir das menções às mesmas nos textos oficiais da Organização Mundial da Saúde e do Ministério da Saúde do Brasil, publicados de 1995 a 2005. Resultados: Constata-se que as IFH são consideradas em plano secundário, essencialmente em função do tratamento medicamentoso eleito como estratégia prioritária para a luta contra a endemia. Conclusões: Conclui-se que, de equívoco em equívoco, específicos para as IFH e gerais para a doença, frustraram-se até os dias atuais por repetidas vezes, sobretudo em nosso país, expectativas institucionais relativas à eliminação da moléstia.

Abstract Objectives: The Public Policies referred to the control of the physical disabilities in leprosy (PDL) during the 1995-2005 decade are our main interest. Material and Methods: Wide-ranging thematic revision on official texts of the World Health Organization and of the Brazilian Ministry of Health, published during the mentioned period. Results: We have been able to aim evidences which pointed to the consideration that Public Policies related to the PDL are issued on a secondary level, essentially in function of the drug treatment, considered as priority against the endemic disease. Conclusions: We may conclude that, due to mistakes done specifically to the PDL and in general to the illness itself, commitments referring to the elimination of the leprosy were frustrate repeated times, unfortunately, mainly in our country.

Hospitalização por doenças infecciosas, parasitismo e evolução nutricional de crianças atendidas em creches públicas / Hospitalization for infectious diseases, parasitism and nutritional evolution of children attended in public child day care centers

Resumo O objetivo deste artigo é analisar a influência das hospitalizações por doenças infecciosas (diarreia e pneumonia) e do parasitismo na evolução nutricional, ao longo de um ano, entre crianças assistidas em creches públicas municipais. Mães de crianças de uma coorte responderam sobre a hospitalização por diarreia e pneumonia, assim como em relação ao parasitismo, durante o período de um ano de frequência à creche. Medidas antropométricas foram tomadas em cada visita. Usou-se modelo ajustado para examinar a relação entre a experiência de processos infecciosos e os desfechos do crescimento (peso e estatura). Numa amostra de 269 crianças monitoradas no período de 12 meses, a hospitalização por pneumonia e a infecção parasitária estiveram associadas com o crescimento desacelerado do peso e da estatura. Infecções parasitárias e pneumonia associaram-se ao comprometimento do crescimento em termos de peso e estatura.

Abstract The scope of this article is to analyze the influence of hospitalizations by infectious diseases (diarrhea and pneumonia) and parasitism in nutritional evolution, over the period of a year, among children enrolled in municipal public day care centers. Mothers of children in a cohort were asked about previous hospitalization due to diarrhea and pneumonia, as well as in relation to the elimination of worms, during the period of one year of attendance at day care centers. Anthropometrics were measured at each visit. An adjusted model to examine the relationship between infections experienced and growth outcomes (weight and height) was applied. In a subset analysis of 269 children followed up at every visit over the course of 12 months, hospitalization due to pneumonia and parasite infection were associated with decelerated growth in weight and height. Parasitic infection and pneumonia were associated with growth impairment in terms of weight and height.

Caracterización de factores asociados a la infección por el virus de la hepatitis C Guatemala 2017 / Characterization of factors associated with infection with the hepatitis C virus Guatemala 2017

Antecedentes: Actualmente se estima que a nivel mundial cerca de 150 millones de personas están infectadas con virus de la hepatitis C (HCV) y se encuentran en riesgo de padecer cirrosis hepática y/o cáncer hepático. De estas, aproximadamente 350,000 mueren cada año por las causas antes mencionadas.(1) En Guatemala, los programas de prevención se han concentrado en el tamizaje y detección de la enfermedad en donantes de sangre, madres embarazadas, pacientes con alcoholismo crónico, usuarios de drogas, entre otros. Objetivo: Caracterizar y describir los principales factores asociados a la infección por el VHC. Materiales y Métodos: Es un estudio ambispectivo, descriptivo y analítico realizado en 138 pacientes con diagnóstico de infección por el HCV que asisten a la Clínica de Enfermedades Infecciosas de Hospital Roosevelt en el período 2007-2016. Se analizaron 29 variables agrupadas en cinco. categorías: características sociodemográficas, características de referencia, factores asociados a la infección por el HCV, características serológicas y virológicas del HCV y criterios para el cumplimiento de tratamiento. Cada una estás fue descrita en base a frecuencias, porcentajes y se calcularon intervalos de confianza al 95% para las variables relacionadas con los factores asociados a la infección por el HCV. También se estudiaron las relaciones entre los factores demográficos y los factores asociados con las pruebas estadísticas Xi cuadrado (a:0.10) y OR. Resultados: 138 pacientes fueron estudiados. 67 hombres y 71 mujeres, con edad promedio de 45 años. El perfil sociodemográfico más común en base a estos pacientes es una persona de 45 años de edad, residente de la ciudad capital, heterosexual, soltero(a), con una profesión u ocupación no relacionada a la salud y con un nivel de escolaridad de diversificado. Los factores asociados a la infección por el VHC que presentaron mayor porcentaje fueron; el antecedente de múltiples parejas sexuales (37%), transfusión de algún hemoderivado (30%) antecedente de alcoholismo (27%) y relaciones sexuales extramaritales sin protección. El 36% de los pacientes cumplió con criterios para inicio de tratamiento. Únicamente el 35% de los pacientes fue referido de otros hospitales nacionales o clínicas particulares. Conclusiones: La hepatitis C en pacientes diagnosticados y en seguimiento en Hospital Roosevelt, corresponden a donantes de sangre referidos, pacientes co-infectados con VIH o de Clínicas privadas u otros centros. Es importante generar programas de detección activa pues con los tratamientos actuales se puede curar a mas del 95% de los pacientes y evitar su progresión a cirrosis o cáncer de hígado...(AU)

Abstract: Currently it is estimated worldwide that about 150 million people are infected with Hepatitis C Virus (HCV) and are at risk for developing cirrhosis and/or liver cancer. From these, approximately 350,000 people die each year from the conditions described previously (1). In Guatemala, prevention programs have focused on screening persons who donate blood, pregnant women, patients with a history of chronic alcoholism, intravenous drug users, etc. Objective: Characterize and describe the main factors associated with HCV infection. Materials and Methods: This current study is ambispective, descriptive and analytic. It was conducted in 138 patients with a diagnosis of HCV infection attending the Infectious Diseases Clinic, Roosevelt Hospital in 2007-2016. A total of 29 variables were registered and grouped within 5 categories (social and demographic characteristics, characteristics of reference, factors associated with HCV infection, virological and serological characteristics and criteria satisfaction for the initiation of HCV infection treatment). Results: 138 patients were studied: 67 male and 71 female with an average age of 45 years. The most common sociodemographic profile in these patients was a person of 45 years of age, residing within the city, heterosexual, single, with a profession or occupation not related to health services, and with a high school education level. The factors associated with HCV infection with the highest percentage were; history of multiple sexual partners (37%), transfusion of some blood products (30%) alcoholism (27%) and unprotected extramarital sex. Thirty-six percent of the patients met criteria for initiating treatment. Only 35% of the patients were referred from other national hospitals or private clinics. Conclusions: Hepatitis C in patients diagnosed and seconded at Roosevelt Hospital correspond to referred blood donors, patients co-infected with HIV or from private clinics or other centers. It is important to generate active screening programs because with current treatments more than 95% can be cured and therefore prevent their progression to cirrhosis or liver cancer...(AU)

Infección por virus Zika como un reto para la Salud Pública / Zika virus infection as an edge for Public Health

La fiebre del Zika es una enfermedad viral transmitida por mosquitos causada por el virus del mismo nombre (ZIKV), y que consiste en fiebre leve, exantemas (principalmente maculo-papular), cefalalgia, artromialgias, malestar general y conjuntivitis no purulenta que acontece entre dos a siete días después de la picadura del mosquito vector(Aedes). Una de cada cuatro personas puede desarrollar síntomas y en quienes sí son afectados la enfermedad es usualmente leve, con síntomas que pueden durar dicho período. La apariencia clínica es muchas veces similar a la del dengue, que también se transmite por mosquitos. Esta afección se ha relacionado con brotes importantes en varias latitudes, pero, hasta el momento, no con la intensidad del actual y es que puede relacionarse con complicaciones neurológicas y autoinmunes a largo plazo incluyendo resultados perinatales desfavorables en embarazadas. Esto la convierte en un tema muy importante para la Salud Pública (AU).

Zika fever is a viral disease transmitted by mosquitoes where Zika virus is involved. Clinical manifestations include low fever, non-supurative conjunctivitis, maculopapular rash, headache, joints pain, malaise during the first two to seven days after mosquito vector Aëdes bites. One between four patients can develop those complaints although it is not usually severe. The differential diagnosis is match dengue and other arbovirosis. The symptoms could be present all this period. The illness is related with sprouts in many countries, but it looks a decrease nowadays. Zika complications can be neurological and autoimmune disorders and even perinatal malformations. That is a reason because it´s a very important problem for Public Health (AU).

Consumo de basuco en usuarios de drogas inyectables en Colombia / Consumption of crack cocaine in injection drug users in Colombia

Objetivo: identificar las conductas de riesgo asociadas al consumo de basuco en los usuarios de drogas inyectables, así como las características sociodemográficas de esta población. Métodos: estudio descriptivo transversal que empleó como metodología el muestreo guiado por el encuestado. La muestra incluyó 1 081 usuarios de drogas inyectables entre los 18 y 59 años de edad en cinco ciudades colombianas. Para el análisis estadístico se utilizaron las pruebas de Ji-cuadrado y razones de prevalencia con intervalos de confianza de 95 por ciento. El proyecto fue avalado por el comité de ética de la Universidad CES. Resultados: pertenecer al sexo masculino, ser de un estrato socioeconómico bajo y vivir solo, fueron las variables que se asociaron con un mayor incremento del riesgo de consumir basuco entre los usuarios de drogas inyectables. A su vez, el consumo de basuco en esta población aumentó significativamente el número de dosis inyectadas requeridas en el día, así como la probabilidad de adquirir una enfermedad de transmisión sexual y de seropositividad para el virus de la inmunodeficiencia humana y de la hepatitis C. Conclusiones: se identifica una mayor frecuencia de inyección en los consumidores de drogas inyectables que fuman basuco, mayor probabilidad de seropositividad para hepatitis C y VIH o de adquirir una infección de transmisión sexual, asímismo, la baja condición social y la forma de vida favorecen el consumo de basuco entre los usuarios de drogas inyectables(AU)

Objective: to assess the impact and the risk behaviors associated with consumption of crack cocaine in injection drug users as well as the socio-demographic characteristics of this population. Methods: a cross-sectional study using the respondent-driven sampling. The sample included 1081 injection drug users aged 18 to 59 years old in five Colombian cities. For statistical analysis, we used the SPSS software, the Chi-square and odds ratios with 95 percent CI. The project was supported by the ethics committee of the University CES. Results: being male, having a low socioeconomic status and living alone were the variables associated with increased risk of consuming crack cocaine among injection drug users. The consumption of crack cocaine dramatically increased the number of injected doses required in one day, and the likelihood of acquiring a sexually transmitted disease, human immunodeficiency virus and C hepatitis. Conclusions: higher frequency of injection is detected in injection drug users who smoke crack cocaine, and seropositivity to B hepatitis C and HIV or acquiring sexually transmitted infection are more likely. Additionally, the low social status and the way of life favor crack cocaine smoking among the injection drug users(AU)

Factores de riesgo para enfermedad cardiovascular en el paciente con infección por VIH en Guatemala / Risk factors for cardiovascular disease in patients with HIV infection in Guatemala

Para el año 2011 según la Organización Mundial de la Salud (OMS), 34 millones de personas en todo elmundo padecían la infección por el Virus de la Inmunodeficiencia Humana (VIH). Actualmente en Guatemalala mayoría de pacientes, son atendidos en el departamento de Guatemala, en Instituto Guatemalteco deSeguridad Social(I.G.S.S.), La Clínica de Enfermedades Infecciosas del Hospital Roosevelt y la ClínicaFamiliar “Luis Angel García” del Hospital General San Juan de Dios. En los pacientes con infección por VIH95.7% de los pacientes presenta al menos un factor de riesgo cardiovascular, siendo estos en orden defrecuencia: Dislipidemia, Sedentarismo, Aumento del índice cintura-cadera, Tabaquismo, Metabolismoanormal de la glucosa, Lipodistrofia, Hipertensión arterial, Obesidad.

By the year 2011 the World Health Organization (WHO) data, calculate 34 million people worldwide sufferingfrom infection with Human Immunodeficiency Virus (HIV). Currently the majority of patients (66.06%) areserved in the department of Guatemala, Guatemalan Social Security Institute (IGSS), Clinic of InfectiousDiseases of Hospital Roosevelt and Family Clinic "Luis Angel Garcia "Hospital General San Juan de Dios. Inpatients with HIV infection 95.7% of them have at least one cardiovascular risk factor, these being in order offrequency: Dyslipidemia, Sedentary, Increased waist-hip ratio, Smoking, abnormal glucose metabolism,Lipodystrophy, Hypertension, Obesity.

Fiebre amarilla / Yellow fever

La fiebre amarilla representa a una de las fiebres hemorrágicas que adquieren en Venezuela y a una de las cuatro arbovirosis endémicas que tenemos. Revisando la literatura médica nacional e internacional, se actualizan aspectos relevantes de esta endemia rural. Se mencionan en la etiología las características del agente viral, que tiene ARN como componente primordial de su genoma. En la epidemiología, se menciona su prevalencia en el continente americano y africano y se evalúa su modo de transmisión. En la patogenia y la anatomía patológica se describe al hígado como órgano blanco de la infección. Se destacan en las manifestaciones clínicas los trastornos hemorrágicos y de la coagulación sanguínea. El diagnóstico como en Medicina Tropical, corresponde a un diagnóstico integral: la clínica, en primer lugar, asociada a la epidemiología y a la etiología de la enfermedad. Se establece diagnóstico diferencial con otras entidades relacionadas. El tratamiento es de soporte y en terapia intensiva. Se concluye con la profilaxis, evaluando la utilidad que sigue teniendo la vacunación.

The yelow fever represents one of the hemorrhagic fever that can be acquired in Venezuela and one of the four endemic arbovirosis we have. By reviewing the national and international medical literature. Relevant aspects of this endemic rural disease have been updated. In the etiology, several characterictics of the virus are mentioned; including the RNA as a primordial component of its genome. In the epidemiology, its prevalence on the African and American continents is mentioned, and the transmission mode es evaluated. In the pathogenesis and pathological anatomy, the liver is described as the primary organ of infection. Bleeding and blood clotting disorders are the essential clinical manifestations. Like in Tropical Medicina, The corresponding integral diagnosis is required. In the first instance, the clinical aspects, associated to the epidemiology and to the etiology of the disease are analyzed a diffential diagnosis is made with other related entities. The treatment consists of support measures and Intensive Care in the Intensive Care Unit (ICU). For the prophylaxis, we discuss the advantages of vaccination.

Vigilancia activa de enfermedades infecciosas en donantes de sangre / Active surveillance of infectious diseases in blood donors

En Cuba es de carácter obligatorio realizar al 100 por ciento de la sangre donada, pruebas de laboratorio para detectar anticuerpos contra los Virus de Inmunodeficiencia Humana 1 y 2 (VIH), antígeno de superficie del Virus de la Hepatitis B (VHB), anticuerpos contra el Virus de la Hepatitis C (VHC) y la detección indirecta de Treponema pallidum por pruebas serológicas (VDRL o RPR), como ha regulado la Organización Panamericana de la Salud y el Centro para el Control Estatal de Control de la Calidad de los Medicamentos. Se decriben los resultados de esta vigilancia activa en donantes de sangre de la provincia de Cienfuegos desde 1989 hasta el 2009. Se aprecia notable descenso en la detección de casos positivos para la hepatitis B y sífilis a través de los años, mientras que el VIH mantiene un comportamiento caracterizado por cifras muy bajas, incluyendo varios años con ningún caso reportado. Finalmente la hepatitis C muestra una marcada tendencia al incremento en su incidencia entre este grupo poblacional

In Cuba is binding make the detection of antibodies against the 1 and 2 Human Immunodeficiency Virus (HIV), Antigen of the Virus surface of Hepatitis B (HBV) and antibodies against the Virus of Hepatitis C (HCV) and the realization of VDRL, 100 por ciento of donated blood, as it has regulated the Pan American Health Organization and the Center for the State Control of the quality of the medicines Control. This article describes the results of this active surveillance in donor of the Cienfuegos province from 1989 until 2009. Shows remarkable decline in the detection of Hepatitis B and syphilis over the years, while the HIV remains a behavior characterized by very low figures, including several years with no reported case. Finally the Hepatitis C shows a marked tendency to the increase in its incidence

Prevalencia del virus de hepatitis B en donantes de sangre / Hepatitis B virus prevalence in blood donors

El Virus de la Hepatis B, representa un riesgo potencial en los receptores de sangre, por tal motivo, se pretende describir y analizar la prevalencia del VHB en los donantes de sangre. Como método, se utilizó la revisión bibliográfica, y se analizaron artículos de la biblioteca científica SciELO. En los resultados se evidenció una prevalencia de 1.12% (45) donantes positivos para el VHB en Irapuato México. En el estado Zulia en 46.563 donantes, 1.439 positivos (3.09%) para el antígeno frente al Core (anti-HBc) y 97 casos (0.208%) con antígeno de superficie (AgsHB) positivo. En el estado Sucre en 356 donantes, 41 (11.52%) positivos para el Anti-HBc, y 9 (2.53%) para HBsAg. Conclusión, los resultados indican que la prevalencia del VHB en los donantes de sangre continua siendo un factor de riesgo en los receptores, por lo cual es fundamental la historia clínica y la entrevista así como, la implementación de nuevas tecnologías en los bancos de sangre para minimizar el riesgo atribuible a la transfusión de sangre(AU)

The Hepatitis B Virus represents a potential risk to blood recipients in spite of the measures usually implemented to ensure blood safety. Therefore, we intend to describe and analyze the prevalence of HBV in blood donors. As a method we reviewed existing literature and analyzed scientific articles in the SciELO Library. The results showed a prevalence of 1.12% (45) HBV positive donors in Irapuato, Mexico. In the state of Zulia, Venezuela, out of 46,563 donors, 1,439 were positive (3.09%) for the B core antibody (anti-HBc) and 97 (0.208%) for the surface antigen (HBsAg). In Sucre state, out of 356 donors, 41 (11.52%) were positive foranti-HBc, and 9 (2.53%) for HBsAg. In conclusion, the results indicate that the prevalence of HBV in blood donors remains a risk factor for receptors, thus making imperative to emphasize the importance of the patient history and interview, as well as to implement the use new technologies in blood banks to minimize the risk(AU)