title: Effect of vitamin E on protein bound carbhohydrate complexes in radiation treated oral squamous cell carcinoma patients.
abstract: Serum glycoproteins were evaluated in oral squamous cell carcinoma patients treated with radiotherapy and also the effect of vitamin E was studied. Cell surface glycoconjugates are important parameters in the detection of malignancy. Thus, the objective of the present study is to evaluate the efficacy of vitamin E on glycoproteins in oral cavity cancer patients treated with radiotherapy. The study includes 26 age and sex matched normal healthy individuals and 26 patients with squamous cell carcinoma of oral cavity. These patients were divided into two groups, one for radiotherapy alone (at a dosage of 6000 cGy in five fractions per week for a period of six weeks) and the other for radiotherapy plus vitamin E supplementation (at a dosage of 400 IU / day of vitamin E) for the entire period of radiotherapy. Levels of hexose, hexosamine, fucose and sialic acid were increased in oral squamous cell carcinoma patients and a significant decrease was observed in radiation treated patients when compared to control. The levels of glycoconjugates were significantly decreased in radiation treated patients supplemented with vitamin E. This measurement may be useful in assessing disease progression and identifying patients resistant to therapy and a possible role of vitamin E on reduction in glycoconjugate levels of radiation treated oral squamous cell carcinoma patients.
authors.affiliation: Department of Biochemistry and Molecular Biology, University of Madras, Guindy Campus, Chennai, 600 025 India.
authors.forename: S
authors.initials: S
authors.lastname: Chitra
authors.forename: C S
authors.initials: CS
authors.lastname: Shyamala Devi
keywords: Glycoproteins; Oral squamous cell carcinoma; Radiotherapy; Vitamin E