These results suggest that flaxseed has a protective effect on the prostate epithelium in BPH-induced animals.
Flaxseed is considered a functional food with several health benefits. However, because of its high phytoestrogen content, flaxseed influences hormone metabolism and affects the gonadal biomorphology. In this study, computerized histomorphometry was used to evaluate seminiferous and epididymal tubules, considering the different regions of the epididymis (head, body and tail) of rats subjected to a prolonged diet of flaxseed. Young adult male Wistar rats (n=20) were divided into 2 groups during their lactation period: Control Group (CG), fed casein-based meals and Flaxseed Group (FG), fed a 25% flaxseed meal. After 250 days of continuous ingestion, the animals were euthanized and a blood sample was collected. The testicles and epididymis were removed and fixed in buffered formalin solution. The samples were subjected to routine histological paraffin techniques and stained with hematoxilin and eosin. Immunostaining was performed using an antivimentin antibody for Sertoli cell identification. For morphometry, images of the slides were scanned and analyzed using Image J to determine the epithelial height, tubular and luminal diameter and tubular and luminal area. In the hormonal evaluation, FG had a higher serum concentration of estrogen (P=0.001), but no change was observed in the concentration of testosterone. The morphometric assay of seminiferous tubules and epididymal regions revealed no significant differences between the analyzed groups. Similarly, Sertoli cell quantification showed no significant differences in the FG (P=0.98). These results revealed that the continuous and prolonged intake of 25% flaxseed meals from gestation to 250 days of age, even with a significant increase in serum levels of estradiol, does not exert adverse effects on the testicular and epididymal structure or on the cells participating in the spermatogenesis of rats. seu elevado teor de fitoestrógenos, esta semente pode influenciar no metabolismo hormonal e interferir na biomorfologia gonadal. Neste estudo, utilizamos a histomorfometria computadorizada para avaliar os túbulos seminíferos e epididimários, considerando as diferentes regiões do epiPesq. Vet. Bras. 37(6):650-656, junho 2017 651 Influence of prolonged flaxseed (Linum usitatissimum) consumption over epididymis and testicle histoarchitecture of Wistar rats dídimo (cabeça, corpo e cauda) de ratos submetidos a uma dieta prolongada de semente de linhaça. Foram utilizados ratos Wistar machos adultos jovens (n=20) divididos em 2 grupos, durante o período de lactação: Grupo Controle (GC) a base de caseína e Grupo Linhaça (GL) alimentados com 25% de semente de linhaça. Ao final de 250 dias de ingestão contínua, os animais foram sacrificados e amostra de sangue foi coletada. Os testículos e epidídimos foram retirados e fixados em formol tamponado. As amostras foram submetidas ao processamento histológico de rotina para parafina e coradas em hematoxilina e eosina. Foi feita a imunomarcação com anticorpo antivimentina para identificação das células de Sertoli. Para morfometria, as im...
A modified protocol of the alloxan technique for the induction of diabetes mellitus in Wistar rats [Protocolo modificado de indução à diabetes mellitus por aloxana em ratos Wistar] "Short Communication/Comunicação Breve"
Introduction: Malnutrition is a problem of high significance in hospitalized patients and it has an impact in patient stay and risk of infections. Diabetic patients represent an important percentage of hospitalized population. VIDA study aims to determine the prevalence of malnutrition in elderly diabetic patients admitted to Spanish hospitals. Aim: The aim of this study is to describe the population of VIDA study including biochemical and anthropometric parameters on admission. Methods: Cross sectional, multicentre study of 1098 diabetic patients above 65 years of age. 35 medical centers were included. Results: Mean age was 78 SD 7.1 years. The most common diagnosis at admission was respiratory tract infection. The duration of diabetes disease was above ten years in 51.2% and 33.09% was under insulin treatment. At admission, 21.22% was malnourished and 39.07% was at risk of malnutrition. The prevalence of malnutrition was higher in women (p < 0.0002). Discussion: VIDA study is the first Spanish multicentre study describing nutritional status of a large sample of elderly inpatients with diabetes mellitus. 21.22% of the 1,098 patients were malnourished. This result depends on age and sex, and can increase mortality rate. Análisis del perfil de los pacientes ancianos diabéticos y hospitalizados que participaron en el estudio VIDA
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