title: Polymorphisms of CYP1A1, GSTM1 and GSTT1 Loci as the Genetic Predispositions of Oral Cancers and Other Oral Pathologies: Tobacco and Alcohol as Risk Modifiers.
abstract: Polycyclic aromatic hydrocarbons of tobacco require activation by phase I enzymes, such as cytochrome-P4501A1 (CYP1A1) to become an ultimate carcinogen, which are subjected to detoxification by phase II enzymes, especially glutathione S-transferases (GSTs). A study was designed to find whether genetic predisposition are risk modifiers of oral pathologies. The study included 102 cases with Oral Cancers (OCs), 68 cases with nonmalignant pathologies, 100 cases as control group. GSTM1 null genotype was associated with increased risk of OCs but not with benign pathologies. Deleted GSTT1 was associated with all pathologies. Both m1m2 and m2m2 polymorphisms of CYP1A1 were associated with oral pathologies.
authors: Sumana
authors: S
authors: Chatterjee
authors: Soujatya
authors: S
authors: Dhar
authors: Bani
authors: B
authors: Sengupta
authors: Ashish
authors: A
authors: Ghosh
authors: Manas
authors: M
authors: De
authors: Sumit
authors: S
authors: Roy
authors: Sila
authors: S
authors: Chakrabarti