H-ras-1 restriction fragment length polymorphism in normal individuals and oral cancer patients in India

Bhoite, Leena T. ; Saranath, Dhananjaya ; Nair, Rama ; Deo, Madhav G. ; Sanghavi, Vikram ; Mehta, Ashok (1993) H-ras-1 restriction fragment length polymorphism in normal individuals and oral cancer patients in India Journal of Oral Pathology & Medicine, 22 (7). pp. 298-302. ISSN 0904-2512

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Official URL: http://onlinelibrary.wiley.com/doi/10.1111/j.1600-...

Related URL: http://dx.doi.org/10.1111/j.1600-0714.1993.tb01076.x

Abstract

Restriction fragment length polymorphism (RFLP) of the human H-ras-l gene has been indicated as a marker for detection of individuals at high risk of cancer. We have investigated the association of RFLP at the H-ras-l locus and susceptibility to oral cancer by Southern hybridization analysis in 77 primary oral tumors and 99 healthy donors. The frequency distribution of the Bum HI fragments of H-ras-l revealed homozygous or heterozygous alleles in the two sub-populations. The heterozygous genotype occurred more frequently in the normal subjects (53%) as compared to the cancer patients (36%). Four common alleles Cl to C4, were noted predominantly in both groups, with rare alleles detected at a lower frequency. The common allele with 7.6 kb BamHI fragment was significantly higher in normals (10%) than in the tumor population (4%) (P≤0.05). However, a similar distribution of rare alleles in both groups indicated that the presence of rare alleles is not indicative of predisposition to oral cancer.

Item Type:Article
Source:Copyright of this article belongs to International Association of Oral Pathologists.
Keywords:H-ras-l Alleles; Oral Cancer; RFLP
ID Code:21747
Deposited On:22 Nov 2010 10:53
Last Modified:31 May 2011 10:13

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