title: A study on association of leptin receptor gene polymorphism with obstructive sleep apnea syndrome in overweight and obese north Indian subjects.
abstract: Obesity is an important risk factor of Obstructive Sleep Apnea Syndrome (OSAS). Previous studies suggested Leptin Receptor (LEPR) gene Polymorphisms is associated with obesity and OSAS. Study was conducted to asses association of LEPR gene polymorphism K109R, Q223R and K656N with OSAS in North Indian subjects. Genotyping and estimation of serum Leptin levels were done in 190 subjects. Polysomnography, anthropometrical measures and biochemical investigations were done in all the subjects who qualified for inclusion in the study. We observed significant association of Q223R gene polymorphism with blood pressure (BP) (P < 0.05) and nocturnal max pulse rate (P < 0.05). K656N gene polymorphism was associated with AHI (P < 0.05), average desaturation levels (P < 0.05) and HDL-C (P < 0.05). No association was observed in genotype distribution of these subjects according to obesity and disease severity. These findings suggest that LEPR Q223R and K656N gene Polymorphism may influence BP, Max Pulse rate, AHI, Average desaturation levels and HDL levels in these Subjects.
authors.forename: Abhishek
authors.initials: A
authors.lastname: Dubey
authors.forename: Surya
authors.initials: S
authors.lastname: Kant
authors.forename: Sarita
authors.initials: S
authors.lastname: Agarwal
authors.forename: Swati
authors.initials: S
authors.lastname: Dixit
authors.forename: Abbas Ali
authors.initials: AA
authors.lastname: Mahadi
authors.forename: Sunita
authors.initials: S
authors.lastname: Tiwari
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D001794:Blood Pressure; D008076:Cholesterol, HDL / Q000097:blood; D006801:Humans; D008875:Middle Aged; D009765:Obesity / Q000235:genetics*; D050177:Overweight / Q000235:genetics*; D011110:Polymorphism, Genetic; D054411:Receptors, Leptin / Q000235:genetics*; D020181:Sleep Apnea, Obstructive / Q000235:genetics*
chemical_list: D008076:Cholesterol, HDL; D054411:Receptors, Leptin