PURPOSE: To determine whether the lower pole of the spleen grows after subtotal splenectomy following ligature of major spleen blood vessels. METHODS: Thirty-nine Wistar rats (328.8 ± 27.8 g) submitted to subtotal splenectomy with preservation of the lower splenic pole were divided into two groups: group 1 (control, n=20), immediate removal of the lower pole; group 2 (n=19), removal of the pole on postoperative day 80. The length, width and thickness of the pole were measured. In the control group, mean percent pole weight was calculated immediately after surgery in a direct and indirect manner. In the first case, the weight of the lower pole was divided by overall spleen weight; in the second case, pole weight was divided by the ideal weight of the spleen obtained by linear regression analysis. The results of the two calculations were compared. Macro- and microscopic examinations of the pole were performed. RESULTS: In group 1, no significant difference in mean percent pole weight was observed between the direct and indirect method. In group 2, mean percent pole weight obtained by indirect calculation on day 80 was higher than in group 1 (p<0.001). In group 2, mean length, width and thickness of the pole remnant increased from the first to the 80th day (p<0.05). Histological analysis showed preserved tissue architecture and features compatible with cell hyperplasia in group 2. CONCLUSION: The lower pole splenic remnant presented statistically significant growth up to postoperative day 80 after subtotal splenectomy, even after ligature of the major spleen vessels. Light microscopy revealed changes compatible with cell hyperplasia.
In children, the expression of Le(b) and Le(y) in the superficial gastric epithelium depends on age. Other receptors, such as Le(x), may have a role in H. pylori colonization, especially in patients with DU. Studies assessing the expression of Lewis antigens in children may contribute to an understanding of the mechanisms of acquisition of H. pylori infection.
A diabetes mellitus tipo 2 (DM2) é uma doença prevalente em idosos e está associada à incapacidade funcional e anormalidades do metabolismo glicêmico. O treinamento multicomponente, composto por exercícios de força, equilíbrio, coordenação, marcha, agilidade e propriocepção, é recomendado para melhorar a função física de idosos, porém seus efeitos no tratamento da DM2 não estão claros. Objetivou-se investigar o efeito de um protocolo de treinamento multicomponente na aptidão funcional e parâmetros glicêmicos de idosos com DM2. Foram incluídos 13 idosos com DM2 e idade de 68 ± 6 anos. Antes e após o período de intervenção foram realizados os seguintes testes: chair stand, arm curl, sentar e alcançar, teste de caminhada de seis minutos (TC6M), glicemia de jejum e hemoglobina glicada (HbA1C). O programa de treinamento foi realizado por 16 semanas, três vezes/semana, em dias não consecutivos. Cada sessão consistiu de 10 minutos de aquecimento, 50 minutos de exercícios multicomponentes (coordenação, força muscular, flexibilidade, equilíbrio e agilidade) e 10 minutos de alongamento e relaxamento. Para a análise estatística foi utilizado o teste t pareado e teste de Wilcoxon (p<0,05). O treinamento induziu melhora nos testes arm curl (p = 0,001), sentar e alcançar (p = 0,004), TC6M (p = 0,009) e HbA1C (p = 0,01). Conclui-se que o protocolo de treinamento multicomponente promoveu melhora da aptidão funcional e do controle glicêmico em idosos com DM2. Entretanto, a glicemia de jejum e a força muscular de membros inferiores permaneceram inalteradas. Palavras-chave: Diabetes mellitus tipo 2. Idoso. Exercício físico. Aptidão física. Glicemia.
Introduction: Regular physical activity prevents cardiovascular diseases (CVD) and atherosclerosis, in addition to improving lipid levels and functional capacity in older adults. Objective: To evaluate and compare the lipid levels, functional performance and ankle brachial index (ABI) of sedentary and active older adults. Methods: This was a comparative cross-sectional study with 84 elderly (≥60 years) male and female subjects, divided into two groups: sedentary group (SG, n = 50) and active group (AG, n = 34) according to the International Physical Activity Questionnaire (IPAQ). Anthropometric and hemodynamic assessments, ankle brachial index (ABI) calculations, and functionality tests (Short Physical Performance Battery -SPPB and 6-minute walking test -6MWT) were performed. The Shapiro-Wilk normality test was also used, and we conducted the Student's-t and Mann-Whitney tests for the intergroup comparison. For the categorical data, we used Fisher's exact test (p <0.05). Results: Higher values of high-density lipoprotein cholesterol (HDL-c) (p = 0.001) and lower triglycerides (TG) (p = 0.007) were found in AG compared to SG. In the ABI evaluation, AG presented better right (p = 0.012), left (p = 0.015) and end (p = 0.004) ABI rates when compared to SG. AG had better results in functional performance in the SPPB evaluation (p = 0.0007) and in the 6MWT with a greater distance covered (p = 0.0027). In the anthropometric measurements, AG had lower body mass index (BMI) (0.041) and a smaller abdominal circumference (WC) (0.029). In terms of the incidence of referred diseases, intergroup results were only different for hypertension (0.029), while AG had a lower incidence of hypertension. Conclusion: Active older adults had better lipid levels, higher ABI levels, better functional performance, lower body mass, a smaller abdominal circumference, and lower incidence of hypertension, in comparison to sedentary subjects. Level of evidence I; High quality prospective study. RESUMOIntrodução: A prática de atividade física regular previne doenças cardiovasculares (DCV) e aterosclerose, além de melhorar o perfil lipídico e a capacidade funcional em idosos. Objetivo: Avaliar e comparar o perfil lipídico, desempenho funcional e índice tornozelo-braquial (ITB) de idosos sedentários e ativos. Métodos: Trata-se de um estudo comparativo e transversal com 84 idosos (≥ 60 anos) de ambos os sexos, divididos em dois grupos: grupo sedentário (GS, n= 50) e grupo ativo (GA, n= 34) segundo o Questionário Internacional de Atividade Física (IPAQ). Foram realizadas avaliações antropométricas, hemodinâmicas, índice tornozelo-braquial (ITB) e testes de funcionalidade (Short Physical Performance Battery -SPPB e teste de caminhada de 6 minutos -TC6). Além disso, foi utilizado o teste de normalidade Shapiro-Wilk e na comparação entre os grupos utilizou-se o teste t-Student e o teste Mann-Whitney. Já para os dados categóricos, utilizou-se o teste exato de Fisher (p<0,05). Resultados: Foi verificado no GA valores maiores da lipoproteína de alta densid...
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