Epigallo catechin

FUJIKI H, YOSHIZAWA S, HORIUCHI T, SUGANUMA M, YATSUNAMI J, NISHIWAKI S, OKABE S, NISHIWAKI-MATSUSHIMA R, OKUDA T and suGiMURA T (1992) Anticarcinogenic effects of (-)-epigallo-catechin gallate , Prev Med, 21, 503-9. 

Bae JY, Choi JS, Choi YJ, Shin SY, Kang SW, Han SJ, Kang YH. 2008. (-)Epigallo-catechin gallate hampers collagen destruction and collagenase activation in ultra-violet-B-irradiated human dermal fibroblasts Involvement of mitogen-activated protein kinase. Food Chem Toxicol 46 1298-1307. 

Lambert, J.D. et al., Piperine enhances the bioavailability of the tea polyphenol (-)-epigallo-catechin-3-gallate in mice, J. Nutr., 134, 1948, 2004. 

Catechins, such as (-)-epicatechin and (—)-epigallo-catechin abundant in green tea, possess the antioxidative and prooxidative characteristics of Cu -induced LDL oxidation. In the initiation phase, LDL oxidation was inhibited by addition of catechin. In contrast, during the propagation phase of LDL oxidation, catechins served as accelerators of oxidation. Depending on redox status, they might form reactive oxidation products such as semiquinones and quinones and function to stimulate oxidative reactions. 

Camellia sinensis L. such as green tea leaves contains abundantly functional catechins such as (+)-catechin (43), (-)-epicatechin (62), (-)-epigallo-catechin (63) and (+)-gallocatechin (64). Interestingly, these flavan-3-ols might play a crucial role in the defense of the human body against various bacteria (Fig. 14). 

It is possible to isolate and fractionate the following constituents of grapes and wine (- -)-catechin, gallocatechin, (—)-epicatechin, epigallo-catechin, and epicatechin-3-O-galIate. There are also duneric, trimeric, oligomeric, and condensed procyanidins (Burger et al., 1990 Kondo et al.,... 

Wang, S.I. and Mukhtar, H., Gene expression profile in human prostate LNCaP cancer cells by (-)epigallo-catechin-3-gallate. Cancer Lett, 182,43-51,2002. 

Symmetiy Cig (150 x 3.9 nm, 5 p.m), mobile phase the same as in Fig. 3B, flow-rate 0.6 ml/min. Peaks 1) gallic acid, 2) protoca-techic acid, 3) catechin, 4) epigallo-catechin gaUate, 5) caffeic acid, 6) ferulic acid, 7) rutin, 8) rosmarinic acid, 9) myricetin, 10) quercetin. 

The occurrence of (+) gallocatechin and (-) epigallo catechin is not really proved for cocoa seed tissue [58]. 

Thangapazham RL, Passi N, Maheshwari RK (2007) Green tea polyphenol and epigallo-catechin gallate induce apoptosis and inhibit invasion in human breast cancer cells. Cancta-Biol Ther 6 1938-1943... 

Fassina G, Vtaie R, Morini M, Minghelli 8, Benelli R, Noonan DM, Albini A (2004) Mechanisms of inhibition of tumor angiogenesis and vascular tiunor growth by epigallo-catechin-3-gallate. Qin Cancer Res 10 4865-4873... 

---