Results 131 to 140 of about 7,148 (171)

Antioxidative Caffeoylquinic Acids and Flavonoids from Hemerocallis fulva Flowers

Journal of Agricultural and Food Chemistry, 2011
Tumor necrosis factor-α (TNF-α)-induced reactive oxygen species (ROS) production in HepG2 was used to screen hepatocyte protective compounds from the flowers of Hemerocallis fulva. Three new polyphenols, n-butyl 4-trans-O-caffeoylquinate (1), kaempferol 3-O-{α-L-rhamnopyranosyl(1→6)[α-L-rhamnopyranosyl(1→2)]}-β-D-galactopyranoside (2), and chrysoeriol ...
Yun-Lian, Lin, Chung-Kuang, Lu, Yeh-Jeng, Huang, Hong-Jhang, Chen   +3 more
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Microencapsulation of a Natural Antioxidant from Coffee—Chlorogenic Acid (3-Caffeoylquinic Acid)

Food and Bioprocess Technology, 2017
Chlorogenic acids, the main polyphenolic group present in coffee, which include the caffeoylquinic acids, are recognized as antioxidants with growing interest in pharmacological, cosmetic, and food applications. However, they can be easily oxidized and they are also very unstable when exposed to high temperatures.
Bruna Gonçalves, M. Moeenfard, Fernando Rocha, Arminda Alves, Berta Nogueiro Estevinho, Lúcia Santos   +5 more
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[Advances in caffeoylquinic acid research].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2007
This paper reviewed updated research progresses of caffeoylquinic acids both in phytochemical and pharmacological aspects. The resources, distribution as well as the chemical structures of monocaffeoylquinic acids, dicaffeoylquinic acids, tricaffeoylquinic acids and multicaffeoylquinic acids are conclusively analyzed.
Yu, Zhao, Jun, Zhao, Xiang-ping, Li, Chang-xin, Zhou, Han-dong, Sun, Xiao-jiang, Hao, Pei-gen, Xiao   +6 more
openaire   +1 more source

Caffeoylquinic Acids and Some Biological Activities ofPluchea symphytifolia

Planta Medica, 1994
From the aerial parts of Pluchea symphytifolia, four known and two new caffeoylquinic acids, 1,3,4,5-tetra-O-caffeoylquinic acid and 1,3-di-O-[3,4,-bis-(3,4-dihydroxyphenyl)-cyclobutane-1,2-dicarbonyl]- 4,5-di-O-caffeoylquinic acid, and two flavonols were isolated and their structures elucidated by mass and NMR spectroscopy and by chemical degradation.
Scholz, E, Heinrich, Michael, Hunkler, D
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Caffeoylquinic Acids in Centella asiatica Protect against Amyloid-β Toxicity [PDF]

Journal of Alzheimer's Disease, 2014
The accumulation of amyloid-β (Aβ) is a hallmark of Alzheimer's disease and is known to result in neurotoxicity both in vivo and in vitro. We previously demonstrated that treatment with the water extract of Centella asiatica (CAW) improves learning and memory deficits in Tg2576 mice, an animal model of Aβ accumulation.
Nora E, Gray, Jeff, Morré, Jeremiah, Kelley, Claudia S, Maier, Jan F, Stevens, Joseph F, Quinn, Amala, Soumyanath   +6 more
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A comparative genotoxicity study of chlorogenic acid (3-O-caffeoylquinic acid)

Mutation Research/Genetic Toxicology, 1981
Chlorogenic acid, a compound which occurs naturally in many food items, was assayed for genotoxic activity in 3 different test systems: reverse mutations in the preincubation test with Salmonella typhimurium, gene conversion with Saccharomyces cerevisiae strain D7, and chromosome aberrations in Chinese hamster ovary (CHO) cells.
Hans F. Stich, Miriam P. Rosin, Chiu H. Wu, William D. Powrie   +3 more
openaire   +1 more source

Di-caffeoylquinic acid: a potential inhibitor for amyloid-beta aggregation

Journal of Natural Medicines
Alzheimer's disease (AD) remains a challenging neurodegenerative disorder with limited therapeutic success. Traditional Chinese Medicine (TCM), as a promising new source for AD, still requires further exploration to understand its complex components and mechanisms.
Yue Sun, Xue Wang, Xiaoyu Zhang, Yan Li, Dongdong Wang, Feng Sun, Cunli Wang, Zhenqiang Shi, Xindi Yang, Zhiying Yang, Haijie Wei, Yanling Song, Guangyan Qing   +12 more
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[Caffeoylquinic acid derivatives from the seeds of Vernonia anthelmintica].

Zhongguo Zhong yao za zhi = Zhongguo zhongyao zazhi = China journal of Chinese materia medica, 2012
Mature seeds of Vernonia anthelmintica were separated and purified by using such methods as macroporous absorption resin, Sephadex LH-20 and HPLC preparative chromatography. Six compounds were obtained and their structures were identified by such spectrum techniques as 1H, 13C-NMR and MS.
Yongxia, Wang, En, Wang, Jing, Shang, Hao, Wang   +3 more
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Caffeoylquinic acids

2021
Dorota Woźniak, Izabela Nawrot-Hadzik, Weronika Kozłowska, Sylwester Ślusarczyk, Adam Matkowski   +4 more
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Spectroscopic studies of the interaction mechanisms between mono-caffeoylquinic acids and transferrin

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2017
Transferrin (Tf) is an important protein responsible for circulating and transporting iron into cytoplasm. Tf can be taken into cells through endocytosis mediated by Tf receptor, which usually overexpresses in cancer cells. The Tf-Tf receptor pathway opens a possible avenue for novel targeted cancer therapy by utilizing Tf-binding active compounds ...
Yanqing, Guan, Jing, Dong, Shizhong, Chen, Meixian, Liu, Daidong, Wang, Xiaotian, Zhang, Hong, Wang, Zongtao, Lin   +7 more
openaire   +2 more sources