Results 61 to 70 of about 1,118,899 (304)

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

A Brief Overview on Antioxidant Activity Determination of Silver Nanoparticles

open access: yesMolecules, 2020
Our objective in this review article is to find out relevant information about methods of determination of antioxidant activity of silver nanoparticles.
Zdenka Bedlovičová   +3 more
doaj   +1 more source

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

Metformin promotes mitochondrial integrity through AMPK‐signaling in Leber's hereditary optic neuropathy

open access: yesFEBS Open Bio, EarlyView.
Metformin mediates mitochondrial quality control in Leber's hereditary optic neuropathy (LHON) fibroblasts carrying mtDNA mutations. At therapeutic levels, metformin activates AMPK signaling to restore mitochondrial dynamics by promoting fusion and restraining fission, while preserving mitochondrial mass, enhancing autophagy/mitophagy and biogenesis ...
Chatnapa Panusatid   +3 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

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

NR4A1 Exerts Pro‐Tumor Role in Glioblastoma via Inducing xCT/GPX4‐Regulated Ferroptosis

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Purpose This study investigates NR4A1's paradoxical roles in glioblastoma (GBM) progression, focusing on its mechanistic link to ferroptosis regulation. We aimed to resolve conflicting reports of NR4A1 as both an oncogene and a tumor suppressor by defining its transcriptional control over xCT/GPX4‐mediated iron homeostasis and its clinical ...
Peng Tao   +10 more
wiley   +1 more source

Antioxidant Assay and Total Flavonoid Determination of Ethanolic Extract of Walnut (Canarium indicum L.) Leaves and Its Fractions

open access: yesJurnal Ilmu Dasar, 2023
Antioxidants are compounds that inhibit free radicals. Many plants have antioxidant activity because they contain antioxidant compounds such as flavonoids.
Lukmanto Lukmanto   +3 more
doaj   +1 more source

Changes in Immune‐Inflammation Status and Acute Ischemic Stroke Prognosis in Prospective Cohort

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Inflammation is a critical risk factor for poor outcomes in cerebral infarction. Prior studies focused primarily on baseline inflammation status, neglecting dynamic longitudinal changes. We try to investigate the association between immune‐inflammation status alterations and stroke prognosis, and evaluated three systemic biomarkers'
Songfang Chen   +11 more
wiley   +1 more source

Phenolic content of Hypodaphnis Zenkeri and its antioxidant effects against fenton reactions’ mediated oxidative injuries on liver homogenate [PDF]

open access: yes, 2014
Under oxidative stress conditions, endogenous antioxidant defenses are unable to completely inactivate the free radicals generated by an excessive production of reactive oxygen species (ROS).
Biapa   +14 more
core   +3 more sources

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