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Polymorphic Analysis of Leptin Promoter in Obese/diabetic Subjects in Kashmiri Population

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Specialty Endocrinology
Date 2019 Apr 25
PMID 31016164
Citations 1
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Abstract

Background: The role of common variants in leptin promoter has already been established to play a major role in obesity and diabetes in humans. The study was accordingly focused on leptin promoter variants and their potential association with diabetes and obesity in ethnic population from Kashmir, India.

Methods: Allele frequencies of 620 Kashmiri subjects with diabetes (200), obese subjects (200), and ethnically matched healthy controls (200) were tested for the Hardy-Weinberg disequilibrium. Among 200 obese subjects, a total of 50 persons were with diabetes. The genotype and allele frequencies were evaluated using the Chi-square or Fisher's exact tests.

Results: Sequence analysis revealed two reported variations i.e., rs72563764C>T and rs7799039G>A in promoter region. Both variants show homozygous as well as heterozygous genotypes. These variations indicated significant difference with respect to allelic and genotypic frequencies in all groups i.e., persons with diabetes, obese, and obese persons with diabetes ( < 0.05). We also analyzed the association of these variations with biochemical characteristics and found significant association of rs72563764C>T with triglycerides (TG) in obese patients and fasting plasma glucose (FPG) and random blood sugar (RBS) in obese/persons with diabetes. Also rs7799039G>A showed association with postprandial plasma sugar (PPPS) in obese patients and FPG and resting plasma glucose (RPG) in obese persons with diabetes.

Conclusions: Our results are suggestive of the association of leptin promoter gene variations i.e., rs72563764C>T and rs7799039G>A with both diabetes and obesity.

Citing Articles

Genetic Association of LEP Gene Polymorphisms with Obesity in Moroccan Individuals: Case-Control Study and Updated Meta-analysis.

Bouafi H, Krami A, Morjane I, Slaoui K, Harmak H, Charoute H Biochem Genet. 2023; 61(5):1758-1774.

PMID: 36792840 DOI: 10.1007/s10528-023-10342-8.

References
1.
Chagnon Y, Wilmore J, Borecki I, Gagnon J, Perusse L, Chagnon M . Associations between the leptin receptor gene and adiposity in middle-aged Caucasian males from the HERITAGE family study. J Clin Endocrinol Metab. 2000; 85(1):29-34. DOI: 10.1210/jcem.85.1.6263. View

2.
Li W, Reed D, Lee J, Xu W, Kilker R, Sodam B . Sequence variants in the 5' flanking region of the leptin gene are associated with obesity in women. Ann Hum Genet. 2000; 63(Pt 3):227-34. DOI: 10.1046/j.1469-1809.1999.6330227.x. View

3.
Mammes O, Betoulle D, Aubert R, Herbeth B, Siest G, Fumeron F . Association of the G-2548A polymorphism in the 5' region of the LEP gene with overweight. Ann Hum Genet. 2001; 64(Pt 5):391-4. DOI: 10.1017/s0003480000008277. View

4.
Yiannakouris N, Yannakoulia M, Melistas L, Chan J, Klimis-Zacas D, Mantzoros C . The Q223R polymorphism of the leptin receptor gene is significantly associated with obesity and predicts a small percentage of body weight and body composition variability. J Clin Endocrinol Metab. 2001; 86(9):4434-9. DOI: 10.1210/jcem.86.9.7842. View

5.
Hoffstedt J, Eriksson P, Mottagui-Tabar S, Arner P . A polymorphism in the leptin promoter region (-2548 G/A) influences gene expression and adipose tissue secretion of leptin. Horm Metab Res. 2002; 34(7):355-9. DOI: 10.1055/s-2002-33466. View