Effects of long-term folate supplementation on metabolic status and regression of cervical intraepithelial neoplasia: A randomized, double-blind, placebo-controlled trial

Asemi, Z. and Vahedpoorfard, Z. and Jamilian, M. and Bahmani, F. and Esmaillzadeh, A. (2016) Effects of long-term folate supplementation on metabolic status and regression of cervical intraepithelial neoplasia: A randomized, double-blind, placebo-controlled trial. Nutrition, 32 (6). pp. 681-686.

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Abstract

Objective: This study was conducted to determine the effects of long-term folate supplementation on regression and metabolic status of patients with cervical intraepithelial neoplasia grade 1 (CIN1). Methods: This randomized, double-blind, placebo-controlled trial was performed among 58 women diagnosed with CIN1, ages 18 to 55 y old. Participants were randomly divided into two groups to receive 5 mg/d folate supplements (n = 29) or placebo (n = 29) for 6 mo. Fasting blood samples were taken at baseline and 6 mo after intervention to quantify related markers. Results: A greater percentage of women in the folate group had regressed CIN1 (83.3 versus 52.0, P = 0.019) than those in the placebo group. Long-term folate supplementation resulted in a significant decrease in serum insulin levels (-1.6 ± 6.2 versus +2.6 ± 6.9 μIU/mL, P = 0.018) and homeostatic model assessment-beta cell function (HOMA-B) (-13.0 ± 39.0 versus +11.2 ± 42.3, P = 0.028) compared with the placebo. Additionally, plasma glutathione (GSH) levels were significantly increased (+81.5 ± 264.1 versus -220.9 ± 342.5 μmol/L, P < 0.001) and malondialdehyde (MDA) levels were significantly reduced (-1.0 ± 1.1 versus +0.1 ± 1.6 μmol/L, P = 0.004) in the folate group compared to the placebo. Conclusions: Taken together, folate supplementation (5 mg/d) for 6 mo among women with CIN1 resulted in its regression as well as led to decreased serum insulin, HOMA-B, plasma MDA and increased plasma GSH levels; however, it did not affect other metabolic profiles. © 2016 Elsevier Inc.

Item Type: Article
Additional Information: cited By 0
Uncontrolled Keywords: folic acid; glutathione; insulin; malonaldehyde, adult; Article; blood sampling; controlled study; diet supplementation; double blind procedure; female; health status; human; insulin blood level; long term care; major clinical study; metabolism; pancreas islet beta cell; pancreas islet cell function; priority journal; protein blood level; randomized controlled trial; uterine cervix carcinoma in situ
Subjects: Nutrition
Divisions: Faculty of Medicine > Basic Sciences > Department of Nutrition
Depositing User: editor . 2
Date Deposited: 07 Mar 2017 20:00
Last Modified: 07 Jun 2017 14:11
URI: http://eprints.kaums.ac.ir/id/eprint/138

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