Research Article

The Impact of LEP G-2548A and LEPR Gln223Arg Polymorphisms on Adiposity, Leptin, and Leptin-Receptor Serum Levels in a Mexican Mestizo Population

Table 3

Distribution of LEP G-2548A and LEPR Gln223Arg polymorphisms in Mexican Mestizo population.

Study groupGenotype (%)Phenotype (%)Allele (%)

LEP G-2548AG/GG/AA/AA+GA

Normal range (BMI 18.5–24.9 kg/m2)48 (31.2)78 (50.6)28 (18.2)106 (68.8)174 (56)134 (44)
Overweight (BMI 25.0–29.9 kg/m2)52 (35.6)72 (49.3)22 (15.1)94 (64.4)176 (60)116 (40)
Obese (BMI ≥ 30 kg/m2)21 (25.6)47 (57.3)14 (17.1)61 (74.4)89 (54)75 (46)
NSNSNS
BMI ≥ 25 kg/m273 (32)119 (52.2)36 (15.8)155 (68)265 (58)191 (42)
NSNSNS

LEPR Gln223ArgGln/GlnGln/ArgArg/ArgArg+GlnArg

Normal range (BMI 18.5–24.9 kg/m2)52 (33.8)65 (42.2)37 (24)102 (66.2)169 (55)139 (45)
Overweight (BMI 25–29.9 kg/m2)37 (25.3)84 (57.6)25 (17.1)109 (74.7)158 (54)134 (46)
Obese (BMI ≥ 30 kg/m2)15 (18.3)50 (61)17 (20.7)67 (81.7)80 (49)84 (51)
P NS
BMI ≥ 25 kg/m252 (22.8)134 (58.8)42 (18.4)176 (77.2)238 (52)218 (48)
NS

; NS: nonsignificance; A+: G/A plus A/A; A−: G/G; Arg+: Gln/Arg plus Arg/Arg; Arg−: Gln/Gln; categorical variables were analyzed using or Fisher exact test, accordingly. Normal range, overweight, and obese by genotype; normal range, overweight, and obese by phenotype; normal range and BMI ≥ 25 kg/m2 by genotype; normal range and BMI ≥ 25 kg/m2 by phenotype.