OBJETIVO: Verificar a prevalência de sintomas depressivos de uma população idosa residente em uma comunidade de Montes Claros, Minas Gerais, Brasil, e avaliar sua associação com aspectos biopsicossociais e capacidade funcional. MÉTODOS: Estudo transversal, observacional e de base populacional. Foi avaliada a totalidade dos idosos residentes na área de abrangência de uma Equipe de Saúde da Família, sendo eles entrevistados em seus domicílios. Foi utilizado questionário adaptado do Brazil Old Age Schedule (BOAS) para coletar os dados biopsicossociais. Para avaliar sintomas depressivos, foi aplicada a Escala de Depressão Geriátrica abreviada (EDG-15). A escala de Katz foi utilizada para avaliar as atividades básicas de vida diária (ABVD) e a escala de Pfeffer, para atividades instrumentais de vida diária (AIVD). As associações foram verificadas mediante submissão dos dados à análise bivariada e multivariada. RESULTADOS: A prevalência de sintomatologia depressiva foi de 20,9%. Apresentaram associação significativa com sintomas depressivos: dificuldade para dormir (RP = 2,04; p = 0,002) e dependência para AIVD (RP = 3,22; p < 0,001). CONCLUSÃO: Há alta prevalência de sintomas depressivos entre idosos no âmbito comunitário, sendo mais frequentes entre idosos com dificuldade para dormir e com dependência funcional para AIVD.
Damage to the surface membrane of adult Schistosoma mansoni, and the activity of the excretory system, as shown by resorufin fluorescence, was observed following treatment with praziquantel and incubation with other molecules. Praziquantel treatment induced damage to the surface membrane as measured by the use of a variety of fluorescent compounds. The excretory system of the male worm was inhibited immediately after praziquantel treatment, but fully recovered after culture for 2 h following removal of praziquantel. The excretory system of the female, observed to be minimally active in untreated worm pairs, was often greatly activated in paired females, as shown by intense resorufin labelling, after praziquantel treatment, and this continued during recovery of the male excretory system. In experiments with normal worm pairs, the female could be activated by inhibiting the metabolic rate of the pair by a cooling procedure. The effects on the excretory system of changes in culture conditions (such as changes in pH, concentrations of bacterial lipopolysaccharide, cytokines, reactive oxygen species, compounds which remove cholesterol, such as beta-methyl cyclodextrin, and damaging basic poly-L-lysine) were also assessed. It is concluded that the extensive excretory system of the adult worm is responsive to drug treatment and to certain changes in environmental conditions. Its activity seems to be strongly linked to the integrity of the surface membrane.
Self-identification according to the racial/color categories proposed by the Brazilian Census is insufficient to properly control for population stratification in pharmacogenomic studies of ABCB1.
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