Comparative antimutagenic and anticlastogenic effects of green tea and black tea: a review.
Tea is the most popular beverage next to water, consumed by over two-thirds of the world's population. It is processed in different ways in different parts of the world to give green, black or oolong tea. Experimental studies have demonstrated the significant antimutagenic and anticlastogenic effects of both green and black tea and its polyphenols in multiple mutational assays. In the present review, we have attempted to evaluate and update the comparative antimutagenic and anticlastogenic effects of green tea, black tea and their polyphenols in different test systems, based on available literature. Existing reports have suggested that the protective effects of black tea is as good as green tea, however, more studies on black tea and its polyphenols are needed before a final conclusion can be made.
Gupta
S
S
Division of Human Genetics and Genomics, Indian Institute of Chemical Biology, 4 Raja S. C. Mullick Road, Jadavpur, Calcutta 700 032, India.
Saha
B
B
Giri
A K
AK
D000818:Animals; D016588:Anticarcinogenic Agents / Q000494:pharmacology*; D016587:Antimutagenic Agents / Q000494:pharmacology*; D044946:Biflavonoids; D002392:Catechin / Q000494:pharmacology; D002478:Cells, Cultured / Q000187:drug effects; D006224:Cricetinae; D003412:Cricetulus; D018736:DNA Adducts; D004926:Escherichia coli / Q000187:drug effects; D005285:Fermentation; D005419:Flavonoids; D005798:Genes, Bacterial / Q000187:drug effects; D005799:Genes, Dominant / Q000187:drug effects; D005804:Genes, Lethal / Q000187:drug effects; D006801:Humans; D051379:Mice; D009152:Mutagenicity Tests; D009153:Mutagens / Q000494:pharmacology; D010636:Phenols / Q000494:pharmacology; D011108:Polymers / Q000494:pharmacology; D051381:Rats; D012486:Salmonella typhimurium / Q000187:drug effects; D013662:Tea / Q000145:classification
D016588:Anticarcinogenic Agents; D016587:Antimutagenic Agents; D044946:Biflavonoids; D018736:DNA Adducts; D005419:Flavonoids; D009153:Mutagens; D010636:Phenols; D011108:Polymers; D013662:Tea; C056068:theaflavin; D002392:Catechin