Publications by authors named "Geferson de Almeida Goncalves"

Article Synopsis
  • The study investigates the effects of a Merlot grape pomace extract (MGPE) on enzymes involved in sugar digestion to help control blood sugar levels in diabetes.
  • MGPE was found to inhibit both salivary and pancreatic α-amylases but did not affect α-glucosidase, with specific inhibition concentrations of 90 μg/mL and 143 μg/mL, respectively.
  • Computer simulations identified key phenolic compounds in MGPE, such as peonidin and quercetin, which are likely responsible for the inhibition of α-amylases and help in reducing post-meal blood sugar spikes.
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Healthy and adjuvant-induced arthritic rats were treated for 23 days with daily doses of 400 and 800 mg kgIlex paraguariensis extract. This treatment (a) diminished the ROS levels in the liver and brain, (b) decreased oxidative protein and lipid damage in liver and brain, (c) increased the plasma antioxidant capacity, (d) increased the GSH levels and the GSH/GSSH ratio in both the liver and the brain, (e) almost restored the enzymatic activities linked to the metabolism of GSH-GSSG, and (f) reversed the modified activities of xanthine oxidase, superoxide dismutase and catalase. The anti-inflammatory actions (firstly) and the antioxidant actions (in the second place) of the yerba mate constituents (e.

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Anti-inflammatory and antioxidant properties have been attributed to constituents of Rosmarinus officinalis. Considering the inflammatory nature of arthritis and the oxidative stress induced by the disease, this work aimed to investigate if R. officinalis is able to attenuate oxidative and inflammatory injuries caused by the disease.

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The aim of the present study was to compare the in vitro inhibitory effects on the salivary and pancreatic -amylases and the in vivo hypoglycemic actions of the hydrolysable tannin from Chinese natural gall and the condensed tannin from The human salivary -amylase was more strongly inhibited by the hydrolysable than by the condensed tannin, with the concentrations for 50% inhibition (IC) being 47.0 and 285.4 M, respectively.

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Background: The mushroom Agaricus blazei has evoked considerable scientific and practical interest in several fields, especially those linked to its medicinal properties. This review aims to summarize and evaluate the past decade findings related to nutritional and therapeutic uses of A. blazei, with especial emphasis on the most recent discoveries regarding its chemical composition and clinical investigations.

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Citrus aurantium (bitter orange) extracts have been used in products for weight management and sports performance. These extracts contain large amounts of p-synephrine and much smaller amounts of p-octopamine. Both protoalkaloids exert lipolytic and glycogenolytic activities at similar concentrations.

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The purpose of the study was to evaluate the possible effects of the administration of a green tea extract on the oxidative state of the liver and brain of adjuvant-induced arthritic rats, a model for human rheumatoid arthritis. Daily doses of 250 mg kg(-1) (59.8 mg catechins per kg) for 23 days were administered.

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