Results 91 to 100 of about 11,058,511 (394)

Direct and Indirect Antioxidant Effects of Selected Plant Phenolics in Cell-Based Assays

open access: yesMolecules, 2021
Background: Oxidative stress is a key factor in the pathophysiology of many diseases. This study aimed to verify the antioxidant activity of selected plant phenolics in cell-based assays and determine their direct or indirect effects.
Jakub Treml   +3 more
doaj   +1 more source

Paper-based DPPH Assay for Antioxidant Activity Analysis

open access: yesAnalytical Sciences, 2018
We report on a paper-based 2,2-diphenyl-1-(2,4,6-trinitrophenyl)hydrazyl (DPPH) assay for a simple, inexpensive, low reagent and sample consumption and high throughput analysis of antioxidant activity.
Kitima Sirivibulkovit   +2 more
semanticscholar   +1 more source

Transcriptional regulation of neuropeptide receptors underlies context‐dependent adaptation in Drosophila melanogaster

open access: yesFEBS Open Bio, EarlyView.
Under environmental changes, the expression level of neuropeptide (NP) and neuropeptide receptor (NPR) genes changes to confer context‐dependent adaptation to the model organism Drosophila melanogaster. Through finding more regulatory elements in the NPR genes in comparison with their ligands (NPs), we found that NPR‐biased transcriptional regulation ...
SeungHeui Ryu   +6 more
wiley   +1 more source

ANTIOXIDANT ACTIVITY of THE SECONDARY METABOLITES PRODUCED by ENDOPHYTIC FUNGI ISOLATED from JERUJU (Acanthus ilicifolius L.) PLANT

open access: yesBiovalentia: Biological Research Journal, 2019
Twelve endophytic fungi were isolated from Jeruju plant. Three of which have the best antioxidant activity, namely Culvularia lunata DJS1, Diaporthe phaseolorum DJS2, and Colletotrichum siamense BJS4. The fungi can produce secondary metabolites that have
Amanda Rahmaniah Putri   +2 more
doaj   +1 more source

Antioxidant Activity as Biomarker of Honey Variety

open access: yesMolecules, 2018
Honey variety is commonly defined by beekeepers based on nectar flow availability and the only laboratory method to provide verification is the melissopalynological analysis.
M. Dżugan   +3 more
semanticscholar   +1 more source

The Antioxidant Activity of Maltese Honey [PDF]

open access: yesJournal of Apicultural Science, 2014
Abstract Maltese honey has been valued for its medicinal properties since ancient times, so much so that the word Malta is derived from the ancient Greek word, Melite, which means honey. In this study, Maltese honey samples (n = 30) from three harvest seasons and different floral sources were analysed to determine their antioxidant ...
Meinen, Natacha   +2 more
openaire   +4 more sources

Optimization of extraction conditions of antioxidant activity from zingiber zerumbet oleoresin [PDF]

open access: yes, 2011
The health promoting capacity of natural antioxidant from phytochemicals has increase attention from researchers and public. However, processing is affecting the activity and the bioavailability of bioactive compounds.
Abdul Aziz, Ramlan   +4 more
core   +1 more source

Short‐term actions of epigalocatechin‐3‐gallate in the liver: a mechanistic insight into hypoglycemic and potential toxic effects

open access: yesFEBS Open Bio, EarlyView.
Epigallocatechin‐3‐gallate (EGCG) acutely inhibited gluconeogenesis and enhanced glycolysis, glycogenolysis, and fatty acid oxidation in perfused rat livers. Mechanistic assays revealed mitochondrial uncoupling, inhibition of pyruvate carboxylation and glucose‐6‐phosphatase, shift of NADH/NAD+ ratios toward oxidation, and loss of membrane integrity ...
Carla Indianara Bonetti   +8 more
wiley   +1 more source

Antioxidant Activity of Ethanol Extract of Polygonum pulchrum Blume

open access: yesPharmacology and Clinical Pharmacy Research, 2016
The use of antioxidants from natural resources has attracted increasing interest. One of the plant that was empirically used as an antioxidant dietary supplement was Polygonum pulchrum Blume (P. pulchrum Blume).
Asman Sadino   +2 more
doaj   +1 more source

Preliminary Phytochemical Screening, Quantitative Analysis of Alkaloids, and Antioxidant Activity of Crude Plant Extracts from Ephedra intermedia Indigenous to Balochistan

open access: yesTheScientificWorldJournal, 2017
The aim of this study was to evaluate the antioxidant activity, screening the phytogenic chemical compounds, and to assess the alkaloids present in the E. intermedia to prove its uses in Pakistani folk medicines for the treatment of asthma and bronchitis.
R. Gul   +4 more
semanticscholar   +1 more source

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