Results 61 to 70 of about 169,101 (262)

The Potential of Liquid Tofu Waste in Increasing Antioxidant Activity of Robusta Green Coffee

Biosaintifika: Journal of Biology & Biology Education, 2018
Robusta is the most widely cultivated coffee in Indonesia (90% of the total Indonesian coffee production). Antioxidant activity and polyphenol content of Robusta coffee is higher than Arabica coffee or the other plants.
Ayu Rahmawati Sulistyaningtyas, Wildiani Wilson   +1 more
doaj   +1 more source

Acid‐Responsive Nanobot‐Integrated Core‐Shell Microneedles Reprogram the Degenerative Annulus Fibrosus Microenvironment Through Epigenetic Suppression of Ferroptosis

Advanced Science, EarlyView.
An acid‐responsive core‐shell microneedle system normalizes the degenerative annulus fibrosus microenvironment by consuming pathological H+, generating O2, and providing NIR‐amplified redox buffering. Mechanistically, it epigenetically suppresses ferroptosis via DNMT3A‐dependent methylation of the ATF3 promoter, relieving ATF3‐mediated repression of ...
Lu Tan, Yan Zheng, Yue Lan, Zhuo Cheng, Siya Wang, Changqing Li, Yanqiu Wang, Minghan Liu   +7 more
wiley   +1 more source

Phytolacca dodecandra (Phytolaccaceae) Root Extract Exhibits Antioxidant and Hepatoprotective Activities in Mice with CCl4-Induced Acute Liver Damage

Clinical and Experimental Gastroenterology, 2021
Birhanu Geta Meharie,1 Tewodros Agedew Tunta2 1Department of Pharmacy, College of Medicine and Health Sciences, Wollo University, Dessie, Ethiopia; 2Department of Pharmacy, College of Medicine and Health Sciences, Arba Minch University, Arba Minch ...
Meharie BG, Tunta TA
doaj  

Modulation of the TGF‐β/Smad Signaling Pathway by a Bioactive Oxidized Polygonati Rhizoma Polysaccharide Crosslinked Chitosan Hydrogel as Therapeutic Carrier for Parkinson's Disease Treatment

Advanced Science, EarlyView.
An injectable, self‐healing COPRP hydrogel integrates structurally defined oxidized Polygonati rhizoma polysaccharide with carboxymethyl chitosan through dynamic Schiff‐base crosslinking. The bioactive matrix scavenges reactive oxygen species, suppresses neuroinflammation, protects dopaminergic neurons, and supports sustained levodopa release.
Peng Dai, Jikuang Zhao, Chang Xue, Kailei Xu, Liang Yong, Zhuangwei Zhang, Yi Huang, Jianwei Shuai, Xianzhen Chen, Sheng Nie, Junpeng Xu   +10 more
wiley   +1 more source

Calibration curve DPPH - Trolox-equivalent values

The 2,2-diphenyl-1-picrylhydrazyl (DPPH) can be effectively used to measure the antiradical capacity of a selection of botanical extracts, and results are consistent with measurements performed by an innovative optical method.
Ricci, Arianna, Iaccheri, Eleonora, Ragni, Luigi, Parpinello, Giuseppina Paola, Versari, Andrea   +4 more
core   +1 more source

Kinetics of the Oxidation of Quercetin by 2,2-Diphenyl-1-picrylhydrazyl (dpph^•)

, 2016
In methanol/water, dpph• bleaching (519 nm) by quercetin, QH2, exhibits biphasic kinetics. The dpph• reacts completely with the quercetin anion within 100 ms. Subsequent slower bleaching involves solvent and QH2 addition to quinoid products.
Carmelo Daquino (2168854), Mario C. Foti (2168851), K. U. Ingold (1676536), Gino A. DiLabio (1274490)   +3 more
core   +1 more source

ROS/pH‐Responsive Phenylboronic Acid–Chitosan Nanoparticles Improve Silymarin‐Mediated Hepatoprotection After Hepatectomy With Gut‐Liver Axis‐Associated Responses

Advanced Science, EarlyView.
Bioactive phenylboronic acid–chitosan nanoparticles enable responsive silymarin delivery for post‐hepatectomy liver protection. The nanoplatform integrates antioxidant and antibacterial functions, improves hepatic recovery, and is associated with coordinated shifts in gut microbiota, metabolites, cytokines, and hepatic proteomic pathways, suggesting a ...
Jinjin Tong, Chaochao Luo, Zezheng Liu, Xinyan Zhang, Daixu Jia, Yang Sun, Zhaonan Zhang, Haoran Shi, Jianfang Wang, Hua Zhang   +9 more
wiley   +1 more source

Chromatograms of ME of CK before and after teaction with DPPH•.

, 2014
A. Chromatograms of ME of CK before reaction with DPPH·; B. Chromatograms of ME of CK after reaction with DPPH· at 254 nm.
Guanghui Liu (253556), Hao Cai (97727), Baoqin Lin (542352), Zhiyong Xie (520506), Xiuman Sun (542350), Qiongfeng Liao (520501), Guangtian Peng (542351)   +6 more
core   +1 more source

Supramolecular Chiral Assemblies from Benzoselenadiazole‐Alanine‐Acylhydrazone Conjugates Enable Cardioprotection

Advanced Science, EarlyView.
The C3‐symmetric conjugate TASe, which integrates benzoselenadiazole, alanine, and acylhydrazone modules, self‐assembles into a chalcogen‐/hydrogen‐bonded porous framework in the solid state and uniform chiral nanospheres in aqueous media. These assemblies protect cardiomyocytes from doxorubicin‐induced oxidative injury by scavenging intracellular ...
Jinkui Teng, Renjing Yang, Yu Du, Jingzhong Duan, Yiming Xu, Zhihua He, Guanghui Wang, Wenjing Tian, Aijie Liu, Haifeng Chen, Yun‐Bao Jiang, Xiaosheng Yan   +11 more
wiley   +1 more source

Relations between polyphenols content and antioxidant activity in vine grapes and leaves

Czech Journal of Food Sciences, 2008
The occurrence and content of some polyphenols and the antioxidant activity of compounds present in grape berries, stems and leaves of Vitis vinifera L. were evaluated. Three white and three blue varieties of grapevine were investigated.
Josef BALÍK, Marie KYSELÁKOVÁ, Naděžda VRCHOTOVÁ, Jan TŘÍSKA, Michal KUMŠTA, Jaromír VEVERKA, Pavel HÍC, Jiří TOTUŠEK, Danuše LEFNEROVÁ   +8 more
doaj   +1 more source