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Silymarin Attenuates Hepatic and Pancreatic Redox Imbalance Independent of Glycemic Regulation in the Alloxan-induced Diabetic Rat Model

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Biomedical and Environmental Sciences 2020年第9期33卷 690-700页

作者： Miranda Laise Mara Oliveira Agostini Livia da Cunha Lima Wanderson Geraldo de Camini Fernanda Caetano Costa Daniela Caldeira Programa de Pos-graduagao em Saude e Nutricao Escola de NutricaoUniversidade Federal de Ouro PretoOuro PretoMinas Gerais 35400-000Brazil escola de farmacia Universidade Federal de Ouro Preto.Ouro PretoMinas Gerais 35400-000Brazil Laboratorio de Morfopatologia Departamento de Ciencias BioldgicasUniversidade Federal de Ouro PretoOuro Preto 35400-000Brazil Programa de Pos-graduaqao em Ciencias Bioldgicas Nucleo de Pesquisas em Ciencias BiologicasUniversidade Federal de Ouro Preto.Ouro Preto 35400-000Brazil Laboratorio de Bioquimica Metabolica Departamento de Ciencias BiologicasUniversidade Federal de Ouro PretoOuro Preto 35400-000Brazil

Objective To evaluate the efficiency of silymarin(SMN) in modulating metabolic parameters and redox status in rats with type 1 diabetes mellitus(T1 DM).Methods Diabetes was induced by intraperitoneal injection of alloxan. The diabetic rats were administered with SMN at doses of 50 and 100 mg/kg body weight/d for 30 consecutive days. The rats were divided into the following four groups: vehicle control, diabetic(alloxan-treated), DS50(alloxan +50 mg/kg body weight/d of SMN), and DS100(alloxan + 100 mg/kg body weight/d of SMN) groups. The bodyweight and food and water intake were evaluated. After 30 d, the animals were euthanized and the blood was collected for measuring the serum levels of glucose, triacylglycerol(TAG), urea, and creatinine. The liver and pancreas were collected for measuring the activities of superoxide dismutase(SOD) and catalase(CAT), and the levels of carbonylated protein(PC). The pancreas sample was also used for histological *** SMN reduced hepatic(P decreasing food(P decrease blood glucose levels in diabetic *** SMN improved polyphagia and polydipsia, renal function, and protected the liver and pancreas against protein damage without affecting hyperglycemia in diabetic animals.

关键词： Silymarin Silybum marianum Type 1 diabetes Oxidative stress

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Phenolic profile and biological potential of Endopleura uchi extracts

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Asian Pacific Journal of Tropical Medicine 2015年第11期8卷 870-878页

作者： Luis R.Silva Rafaela Teixeira CICS-UBI-Centro de Investigacao em Ciencias da Saude.Universidale da Beira Interior Av.Infante D.Henrique.6201-506.Corilha.Portugal Instituto Politecnico de Castelo Branco Escola Superior de Saude Dr Lopes DiasArenido do EmpresarioCampus da Talagueira6000-767Castelo BrancaPortugal LEPABE Departamento de Engenharia QuimicaFaculdade de Engenharia.Universidade do PortoRua Dr.Roberto Friass/n4200-465 PortoPortugal REQUIMTE/Laboratorio de Farmacognosia Departamento de QuimicaFaculdade de FarmaciaUniversidade do Porto.Rua de Jorge Viterbo Ferreira228.4050-313 PortoPortugal

Objective:To improve the knowledge on the metabolite composition of Endopleura uchi bark,concerning phenolic compounds,and to evaluate some of its biological capacities for further possible exploitation in food and pharmaceutical industries associated to their healthpromoting ***:Two different extracts(infusion and hydroethanolic) were studied concerning phenolic composition and biological ***:Five compounds were determined by HPLC-DAD,being bergenin the major *** general way,infusion presents a greater richness in these *** antioxidant,***,α-glucosidase and antibacterial activity were checked by in vitro assays.A dose-dependent response was noticed against DPPH,superoxide and nitric oxide radicals,acetylcholinesterase,butyrylcholinesterase and against α-glucosidase inhibitory *** capacity of both extracts was investigated against Gram-positive and Gramnegative bacteria,being more effective against the first *** concentrations of infusion extract tested here revealed that is non-toxic for intestinal(Caco-2) cells ***:The results suggest that the extracts of Endopleura uchi may be interesting for incorporating in pharmaceutical preparations for human health,since it can suppress hyperglycaemia and inhibit cholinesteases,and or as food additive due to its antiradical and antibacterial activities.

关键词： Endopleura uchi Bark Phenolic compounds Anti-diabe

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