RESUMO Obejtivo: Descrever fatores associados e aspectos epidemiológicos da Doença de Dupuytren em uma população de pacientes acompanhados em serviço de Cirurgia de Mão de hospital público terciário brasileiro. Métodos: Realizou-se um estudo transversal entre os anos de 2014 e 2019. Coletamos dados como idade, gênero, ascendência, comorbidades associadas, doenças fibróticas associadas, uso de fenobarbital, uso de tabaco e álcool e histórico familiar de Doença de Dupuytren. Em seguida, realizamos exame clínico, caracterizando o acometimento dos dedos da mão. Também foi avaliado se os pacientes da amostra apresentavam fatores de gravidade da Doença de Dupuytren. Resultados: 140 pacientes foram incluídos, 70,7% eram homens e 29,3% mulheres. Apenas 42,3% dos pacientes relataram ascendência europeia; 20% apresentaram parentes de primeiro grau com a doença; 59,3% apresentaram comorbidades, incluindo hipertensão, diabetes, cardiopatia crônica, dislipidemia e infecção por HIV; 15,8% tinham doença de Ledderhose e 7,1% tinham doença de Peyronie. 31% eram fumantes, 16,6% declararam alcoolismo, 37,1% faziam uso de fenobarbital e 40% apresentaram a forma grave da DD. Conclusão: A população estudada foi composta por brasileiros que apesar de, em sua maioria, não relatarem ascendência europeia, apresentaram diversas características semelhantes às descritas na literatura mundial. Nível de Evidência II; Estudos Prognósticos; Investigação do efeito de característica de um paciente sobre o desfecho da doença.

ABSTRACT Objectives: The purpose of this study is to describe associated factors and epidemiological aspects of Dupuytren’s Disease in patients followed up in a Brazilian tertiary public hospital, at the Hand Surgery service. Methods: A cross-sectional study was performed from 2014 to 2019. Data collected included: age, gender, ancestry, associated comorbidity presence, phenobarbital, tobacco, and alcohol use, family history of Dupuytren’s Disease and associated fibrotic diseases. Then, the patients underwent a clinical examination to identify and characterize the involvement of the fingers. The patients were also assessed in regard to whether they presented Dupuytren’s Disease severity factors. Results: 140 patients were included, 70.7% men and 29.3% women. Only 42.3% reported being of European ancestry; 20% had first-degree relatives with the disease; 59.3% presented comorbidities, including hypertension, diabetes, chronic heart disease, dyslipidemia, epilepsy, and HIV infection; 15.8% had Ledderhose disease, 7.1% had Peyronie’s disease. 31% were smokers, 16.6% were alcoholic, and 37.1% were phenobarbital users; 40% presented with a severe form of DD. Conclusion: The population studied was composed of Brazilians, most of whom did not report European ancestry; still, they presented several characteristics similar to those described in literature worldwide. Level of Evidence II; Prognostic Studies; Investigating the effect of a patient characteristic on the outcome of a disease .

Among the innovations for the treatment of type 1 diabetes, islet transplantation is a less invasive method of treatment, although it is still in development. One of the greatest barriers to this technique is the low number of pancreas donors and the low number of pancreases that are available for transplantation. Rodent models have been chosen in most studies of islet rejection and type 1 diabetes prevention to evaluate the quality and function of isolated human islets and to identify alternative solutions to the problem of islet scarcity. The purpose of this study is to conduct a review of islet xenotransplantation experiments from humans to rodents, to organize and analyze the parameters of these experiments, to describe trends in experimental modeling and to assess the viability of this procedure. In this study, we reviewed recently published research regarding islet xenotransplantation from humans to rodents, and we summarized the findings and organized the relevant data. The included studies were recent reports that involved xenotransplantation using human islets in a rodent model. We excluded the studies that related to isotransplantation, autotransplantation and allotransplantation. A total of 34 studies that related to xenotransplantation were selected for review based on their relevance and current data. Advances in the use of different graft sites may overcome autoimmunity and rejection after transplantation, which may solve the problem of the scarcity of islet donors in patients with type 1 diabetes.