ABSTRACT Purpose: To characterize the extracellular vesicle protein cargo in the aqueous humor and plasma of patients with ocular toxoplasmosis. Methods: Aqueous humor and plasma were collected from six patients with active ocular toxoplasmosis and six patients with cataract. Extracellular vesicles were isolated, and western blotting and mass spectrometry were performed for protein analysis. Results: All plasma samples from patients with ocular toxoplasmosis and cataract were positive for the tetraspanins CD63 and TSG101. However, the aqueous humor from patients with ocular toxoplasmosis was positive only for CD63. Sixty-seven new unreported proteins were identified in the aqueous humor and plasma of patients with the ocular toxoplasmosis and cataract. Of the 67 proteins, 10 and 7 were found only in the cataract and ocular toxoplasmosis groups, respectively. In general, these proteins were involved in immune system activation and retina homeostasis and were related to infections and retina-associated diseases. Conclusion: The distinct protein signatures between ocular toxoplasmosis and cataract may be helpful in the differential diagnosis of ocular toxoplasmosis. However, more studies are needed to better understand the role of these proteins in the pathogenesis of ocular toxoplasmosis. Purpose Methods isolated analysis Results CD CD6 TSG101 TSG However Sixtyseven Sixty seven 6 1 groups respectively general retinaassociated associated diseases Conclusion TSG10 TSG1

RESUMO Objetivos. Avaliar a frequência de sintomas em pacientes com febre do Oropouche e compará-los aos observados na dengue e em outras arboviroses. Métodos. Revisão sistemática, com base nas diretrizes MOOSE e PRISMA, incluindo estudos sobre manifestações clínicas agudas em pacientes com febre do Oropouche. A busca incluiu as bases de dados PubMed, Biblioteca Virtual em Saúde, Cochrane Library e Google Scholar e recuperou documentos publicados até setembro de 2024. Os sintomas da febre do Oropouche foram comparados com os da dengue e de outras arboviroses, e a certeza foi avaliada usando a abordagem GRADE. Resultados. Foram incluídos 23 estudos com 3 648 pacientes com a febre do Oropouche. Os sintomas mais frequentes nesses pacientes foram febre (97%) e cefaleia (86%). Não houve diferença na frequência de febre e cefaleia entre os pacientes com febre do Oropouche e com dengue. No entanto, a odinofagia (28%) e a dor abdominal (15%) foram mais frequentes na febre do Oropouche que na dengue (razões de chances de 3,20 e 2,50, respectivamente). Mialgias (69%) e artralgias (57%) foram menos frequentes em pacientes com febre do Oropouche que em pacientes com dengue. Conclusões. Febre e cefaleia são comuns na febre de Oropouche, mas não ajudam a diferenciá-la da dengue. Por outro lado, odinofagia e dor abdominal são mais frequentes nos pacientes com febre do Oropouche, ao passo que mialgia, artralgia e exantema são mais prevalentes na dengue. Esses achados podem ajudar no diagnóstico diferencial em áreas de cocirculação de arbovírus. São necessários mais estudos sobre a recorrência e a duração dos sintomas para aprimorar as estratégias de diagnóstico.

ABSTRACT Objectives. To assess the frequency of symptoms in patients with Oropouche fever and compare them with those observed in patients with dengue and other arboviral diseases. Methods. A systematic review was conducted following the MOOSE and PRISMA reporting guidelines. The review included studies on acute clinical manifestations in patients with Oropouche fever. Searches were conducted in PubMed, Virtual Health Library, Cochrane Library, and Google Scholar up to September 2024. The symptoms of Oropouche fever were compared to those of dengue and other arboviral diseases. Certainty of evidence was assessed using the GRADE approach. Results. A total of 23 studies covering 3648 patients with Oropouche fever were included. The most frequent symptoms in patients with Oropouche virus infection were fever (97%) and headache (86%). There was no difference in frequency of fever or headache between patients with Oropouche and dengue. However, odynophagia (28%) and abdominal pain (15%) were more frequent in Oropouche than in dengue, with odds ratios (ORs) of 3.20 and 2.50, respectively. Myalgia (69%) and arthralgia (57%) were less frequent in Oropouche fever than in dengue. Conclusions. Fever and headache are common in Oropouche virus infection, but do not help discriminate it from dengue. However, odynophagia and abdominal pain are more frequent in patients with Oropouche fever, while myalgia, arthralgia, and rash are more prevalent in dengue. These findings may aid in differential diagnosis in areas of arboviral co-circulation. Further studies on the recurrence and duration of symptoms are needed to improve diagnostic strategies.

RESUMEN Objetivos. Evaluar la frecuencia de los síntomas en pacientes con oropouche y compararlos con los observados en el dengue y otras arbovirosis. Métodos. Se realizó una revisión sistemática basada en MOOSE y PRISMA; se incluyeron estudios sobre manifestaciones clínicas agudas en pacientes con oropouche. La búsqueda incluyó las bases de datos PubMed, Biblioteca Virtual en Salud, Cochrane Library y Google Scholar hasta septiembre de 2024. Se compararon los síntomas del oropouche con los del dengue y otras arbovirosis, y se valoró la certeza con el enfoque GRADE. Resultados. Se incluyeron 23 estudios con 3 648 pacientes con oropouche. Los síntomas más frecuentes en pacientes con oropouche fueron fiebre (97%) y cefaleas (86%). No hubo diferencias en la frecuencia de fiebre ni cefaleas entre pacientes con oropouche y dengue. Sin embargo, la odinofagia (28%) y el dolor abdominal (15%) fueron más frecuentes en el oropouche que en el dengue (OR 3,20 y 2,50, respectivamente). Las mialgias (69%) y las artralgias (57%) fueron menos frecuentes en los pacientes con oropouche en comparación con el dengue. Conclusiones. La fiebre y las cefaleas son frecuentes en la fiebre de Oropouche, pero no ayudan a diferenciarlo del dengue. En cambio, la odinofagia y el dolor abdominal son más frecuentes en los pacientes con oropouche, mientras que las mialgias, las artralgias y el exantema prevalecen más en el dengue. Estos hallazgos pueden ayudar en el diagnóstico diferencial en áreas de cocirculación arboviral. Se requieren estudios adicionales sobre la recurrencia y la duración de los síntomas para mejorar las estrategias diagnósticas.

Abstract Aiming to test the capacity of retention of carotenoids in tissues, Lophiosilurus alexandri juveniles were fed diets containing 0, 25, 50, 100, 200, and 400 mg/kg of synthetic astaxanthin for 62 days. The inclusion of astaxanthin did not result in significant differences in growth, weight gain, apparent feed conversion, and feed efficiency of the fish. Blood biochemistry and liver histology did not change with the different treatments. At the level of 100 mg/kg of inclusion, there were the highest levels of carotenoids in the blood, and muscle and the smallest difference between the muscle x integument ratio.

Considerando que para o ensino de física no Ensino Médio adota-se, geralmente, nas escolas públicas o livro didático aprovado pelo Programa Nacional do Livro e Material Didático (PNLD) e que esse pode ser o único referencial para professores e estudantes, ocorreu-nos a seguinte questão: o livro didático pode efetivamente assumir esse protagonismo quando se trata do ensino da Física de Partículas Elementares? Para respondê-la, analisamos as resenhas contidas no Guia dos Livros Didáticos do PNLD de 2018 e 2021 utilizando a técnica de análise de conteúdo. Complementar a isso, identificamos quais conceitos são apresentados nos livros que são objetos de conhecimento para a Física de Partículas Elementares (ou Modelo Padrão), porque a depender da experiência/interesse do professor e do livro didático esse tema poderá ser negligenciado em sala de aula. Os resultados da análise de conteúdo evidenciam características que permeiam um livro na condição de material instrucional didático, tais como: metodologia de ensino e conhecimento didático-pedagógico. Os objetos de conhecimento relacionados a Física de Partículas Elementares foram identificados nos livros a partir de um rol de perguntas de caráter dicotômico.

Considering that in Brazilian public high school the teaching physics adopt the textbook of the Nacional Program of the Textbook (NPT) and that can be the single teaching material is available to teacher and student we inquire: the textbook can assume the role when teaching and learning of the Elementary Particles Physics? Therefore, to solved that question examined general comments contained in the Textbooks Guide of the NPT the years 2018 and 2021 using content analysis technique. Furthermore, we identify which are concepts covered of the Elementary Particles Physics (or Standard Model), particularly since depending on the teacher’s experience/interest and the textbook this topic can be neglected. The results of content analysis indicated features that pervade a book in the condition didatic material, such as: teaching methodology and pedagogical aspects. The contents relating to Elementary Particles Physics were identify in the textbooks as of a list of dichotomous quetions.

Resumo Este artigo analisa o itinerário terapêutico de pessoas transgênero em uma cidade do interior da Bahia. Os participantes foram selecionados pelo critério do método da “bola de neve” e utilizou-se entrevista semiestruturada para produção dos dados. Na análise dos itinerários terapêuticos, emergiram três categorias temáticas: 1) Lugares de busca para o cuidado em saúde: traçadores de iniquidades no SUS; 2) Abordagem profissional: reforça os estigmas e cinde a relação terapêutica; e 3) Demandas específicas por cuidado: percalços ao longo do itinerário terapêutico. Os resultados mostraram que o acesso ao serviço formal esteve permeado por barreiras simbólicas, técnicas e/ou organizacionais que, muitas vezes, transferiam para cada um/uma dos/as entrevistados/as a responsabilidade pela busca de outros percursos formais ou recomposição do cuidado por trajetórias nem sempre seguras. A busca pelo setor privado foi preponderante e, paralelamente, houve a desvalorização do SUS. O estigma institucional resultou em abandono de tratamento, retardo na busca por cuidado ou desistência de procura aos serviços. Por fim, a dificuldade de acesso no SUS produzia iniquidades e conduzia as pessoas transgênero, sobretudo as mais vulneráveis, a exposição e experimentação de procedimentos, muitas vezes, inadequados.

Abstract This article examines the therapeutic itineraries of transgender people in a city in the Bahia countryside. Participants were selected using the “snowball” method using semi-structured interviews to produce the data. In the analysis of therapeutic itineraries three thematic categories emerged: 1) Locus of seeking health care: tracers of inequities in SUS; 2) Professional approach: reinforcing stigmas and interrupting the therapeutic relationship; and 3) Specific demands for care: mishaps along the therapeutic itinerary. Results showed that access to formal services was permeated by symbolic, technical and/or organizational barriers. Those barriers frequently transferred the responsibility for the search of alternative formal paths or the restoration of care upon the interviewees, by using trajectories oftentimes unsafe. The search for the private sector was predominant and, in parallel, there was a depreciation of SUS. The institutional stigma resulted in treatment abandonment, delay in looking for care or giving up seeking services. Finally, the difficulties in accessing the SUS produced inequities leading transgender people, especially the most vulnerable, to be exposed and to experiment with often-inadequate procedures.

Resumo Este artigo analisa o itinerário terapêutico de pessoas transgênero em uma cidade do interior da Bahia. Os participantes foram selecionados pelo critério do método da “bola de neve” e utilizou-se entrevista semiestruturada para produção dos dados. Na análise dos itinerários terapêuticos, emergiram três categorias temáticas: 1) Lugares de busca para o cuidado em saúde: traçadores de iniquidades no SUS; 2) Abordagem profissional: reforça os estigmas e cinde a relação terapêutica; e 3) Demandas específicas por cuidado: percalços ao longo do itinerário terapêutico. Os resultados mostraram que o acesso ao serviço formal esteve permeado por barreiras simbólicas, técnicas e/ou organizacionais que, muitas vezes, transferiam para cada um/uma dos/as entrevistados/as a responsabilidade pela busca de outros percursos formais ou recomposição do cuidado por trajetórias nem sempre seguras. A busca pelo setor privado foi preponderante e, paralelamente, houve a desvalorização do SUS. O estigma institucional resultou em abandono de tratamento, retardo na busca por cuidado ou desistência de procura aos serviços. Por fim, a dificuldade de acesso no SUS produzia iniquidades e conduzia as pessoas transgênero, sobretudo as mais vulneráveis, a exposição e experimentação de procedimentos, muitas vezes, inadequados.

Abstract This article examines the therapeutic itineraries of transgender people in a city in the Bahia countryside. Participants were selected using the “snowball” method using semi-structured interviews to produce the data. In the analysis of therapeutic itineraries three thematic categories emerged: 1) Locus of seeking health care: tracers of inequities in SUS; 2) Professional approach: reinforcing stigmas and interrupting the therapeutic relationship; and 3) Specific demands for care: mishaps along the therapeutic itinerary. Results showed that access to formal services was permeated by symbolic, technical and/or organizational barriers. Those barriers frequently transferred the responsibility for the search of alternative formal paths or the restoration of care upon the interviewees, by using trajectories oftentimes unsafe. The search for the private sector was predominant and, in parallel, there was a depreciation of SUS. The institutional stigma resulted in treatment abandonment, delay in looking for care or giving up seeking services. Finally, the difficulties in accessing the SUS produced inequities leading transgender people, especially the most vulnerable, to be exposed and to experiment with often-inadequate procedures.

Abstract Since the emergence of the chikungunya virus in Brazil in 2014, more than 700,000 cases have been reported throughout the country, corresponding to one-third of all cases reported in the Americas. In addition to its high attack rates, resulting in hundreds of thousands of cases, the disease has high chronicity rates with persistent joint manifestations for more than 3 months, which can spread to more than half of the patients affected in the acute phase. Pain associated with musculoskeletal manifestations, often disabling, has an effect on patients’ quality of life at different stages of the disease. Currently, the challenge faced by specialists is identifying the best therapy to be instituted for symptom relief despite the limited number of published intervention studies. In 2016, a multidisciplinary group published pharmacological treatment protocols for pain in patients with chikungunya, which was incorporated into the guidelines for clinical management of the Brazilian Ministry of Health in 2017; in that same year, a consensus was published by the Brazilian Society of Rheumatology about diagnosis and treatment. After 5 years of experience with chikungunya epidemics, in 2019, specialists involved in the protocols of the Brazilian Society of Rheumatology and Brazilian Ministry of Health prepared an update with the main objective of developing flowcharts for the therapeutic approach of musculoskeletal manifestations in adult patients to enable specialists at different levels of healthcare to spread and apply this guideline in a systematic and simplified manner.

Resumo: O objetivo deste trabalho foi avaliar os efeitos da radiação ultravioleta (UV) e da salinidade da água sobre a nitrificação, a qualidade da água, a carga bacteriana e o crescimento de juvenis de tilápia, em sistemas de aquicultura com recirculação de água (SRAs). O período experimental foi dividido em duas fases. A primeira durou 20 dias e avaliou os efeitos da salinidade (0 e 2 g L-1) e radiação UV (com ou sem) sobre a qualidade da água, durante o período de colonização do substrato por bactérias nitrificantes. Na segunda fase, após estocagem dos juvenis de tilápia, avaliaram-se os efeitos dos mesmos fatores experimentais sobre a qualidade da água, a carga bacteriana e o desempenho dos peixes. Os SRAs empregados foram eficientes na remoção da amônia, independentemente dos tratamentos utilizados. Durante o período experimental, as concentrações de nitrito aumentaram de forma linear, com um aumento mais acentuado após o armazenamento dos peixes até 30 dias do experimento. Não houve efeitos significativos da UV, da salinidade ou da interação de ambas sobre amônia total, nitrito e alcalinidade. Os baixos níveis de salinidade (2 g L-1) e UV não afetaram o processo de nitrificação e o desempenho dos peixes. O uso da UV é eficiente na redução da carga bacteriana dos sistemas de aquicultura com recirculação de água.

Abstract: The objective of this work was to evaluate the effects of ultraviolet radiation (UV) and water salinity on nitrification, water quality, bacterial load, and juvenile tilapia growth in recirculating aquaculture systems (RASs). The experimental period was divided into two phases. The first one lasted 20 days and evaluated the effects of salinity (0 and 2 g L-1) and UV (with or without) on water quality during the period of substrate colonization by nitrifying bacteria. In the second phase, after the storage of juvenile tilapia, the effects of the same experimental factors were evaluated on water quality, bacterial load, and fish growth performance. The RASs employed were efficient for ammonia removal, regardless of the treatments used. During the experimental period, the nitrite concentrations increased linearly, with a more pronounced increase after fish storage until 30 days of the experiment. There were no significant effects of UV, salinity, or the interaction of both on total ammonia, nitrite, and alkalinity. The low levels of salinity (2 g L-1) and UV did not affect the nitrification process and fish performance. The use of UV is efficient to reduce the bacterial load of recirculating aquaculture systems.

Abstract Sarcoidosis is a rare multisystem chronic inflammatory disease in children. We present a case of a five-year-old child with clinical features mimicking several diseases, including tuberculosis. After failure of treatment based on the suspected diagnosis, an axillary lymph node biopsy showed noncaseating granulomas compatible with sarcoidosis and appropriate treatment was then started.

Abstract Visceral leishmaniasis is a systemic disease that is potentially severe and endemic in Brazil. It clinically manifests as fever, weight loss, swelling, hepatosplenomegaly, paleness, and edema. In this study, we discuss a case of a 1-year-old child diagnosed with refractory visceral leishmaniasis after being treated with liposomal amphotericin B in two distinct occasions. Considering the persistent clinical features and weak response to conventional treatment, a combination therapy with liposomal amphotericin B (ambisome), n-methylglucamine antimoniate (glucantime), and pentamidine isethionate was initiated, and response to treatment was good.

Abstract From the arrival of Chikungunya virus in the Americas in 2013 until March 2016, approximately two million cases of the disease have been reported. In Brazil, the virus was identified in 2014 and thousands of people have been affected. The disease has high attack rates, infecting 50% of a population within a few months. Approximately 50% of infected people develop chronic symptoms lasting for months or years. Joint involvement is the main clinical manifestation of Chikungunya. It is characterized by swelling and intense pain that is poorly responsive to analgesics, both in the acute and chronic phase of the disease. This significantly compromises quality of life and may have immeasurable psychosocial and economic repercussions, constituting therefore, a serious public health problem requiring a targeted approach. Physicians are often not familiar with how to approach the management of pain, frequently prescribing limited analgesics, such as dipyrone, in sub-therapeutic doses. In addition, there are few published studies or guidelines on the approach to the treatment of pain in patients with Chikungunya. Some groups of specialists from different fields have thus developed a protocol for the pharmacologic treatment of Chikungunya-associated acute and chronic joint pain; this will be presented in this review.

An unusually high incidence of microcephaly in newborns has recently been observed in Brazil. There is a temporal association between the increase in cases of microcephaly and the Zika virus (ZIKV) epidemic. Viral RNA has been detected in amniotic fluid samples, placental tissues and newborn and fetal brain tissues. However, much remains to be determined concerning the association between ZIKV infection and fetal malformations. In this study, we provide evidence of the transplacental transmission of ZIKV through the detection of viral proteins and viral RNA in placental tissue samples from expectant mothers infected at different stages of gestation. We observed chronic placentitis (TORCH type) with viral protein detection by immunohistochemistry in Hofbauer cells and some histiocytes in the intervillous spaces. We also demonstrated the neurotropism of the virus via the detection of viral proteins in glial cells and in some endothelial cells and the observation of scattered foci of microcalcifications in the brain tissues. Lesions were mainly located in the white matter. ZIKV RNA was also detected in these tissues by real-time-polymerase chain reaction. We believe that these findings will contribute to the body of knowledge of the mechanisms of ZIKV transmission, interactions between the virus and host cells and viral tropism.

Abstract: Cryptosporidiosis is a very prominent disease in the field of public health, and usually causes diarrhea. We describe two immunocompetent patients who presented with chronic diarrhea that was ultimately found to be caused by continuous exposure to well water contaminated with the microbial cysts (oocysts) of the Cryptosporidium spp parasite. We describe the patients' histories and possible explanations for their prolonged symptoms.