The Changes of Serum Leptin and Kisspeptin Levels in Chinese Children and Adolescents in Different Pubertal Stages

Table 1

The general characteristics of overall boys and girls in different pubertal stages (mean ± SE).

	T1	T2	T3	T4	T5
Boys
Number	102	44	63	73	75
Age (yr)
Height (cm)
Weight (kg)
WC (cm)
BMI (kg/m^2)
ALT (U/L)
AST (U/L)
Urea (mmol/L)
Cr (μmol/L)
TC (mmol/L)
TG (mmol/L)
HDL-C (mmol/L)
LDL-C (mmol/L)
LH (U/L)
FSH (U/L)
T (ng/mL)
Leptin (ng/mL)
Kisspeptin (pg/mL)
Girls
Number	78	24	41	47	100
Age (yr)
Height (cm)
Weight (kg)
WC (cm)
BMI (kg/m^2)
ALT (U/L)
AST (U/L)
Urea (mmol/L)
Cr (μmol /L)
TC (mmol/L)
HDL-C (mmol/L)
LDL-C (mmol/L)
LH (U/L)
FSH (U/L)
E2 (pg/mL)
Leptin (ng/mL)
Kisspeptin (pg/mL)

with pubertal stage 1, ; ^bcompared with pubertal stage 2, ; ^ccompared with pubertal stage 3, ; ^dcompared with pubertal stage 4, .
WC, waist circumference; BMI, body mass index; ALT, alanine aminotransferase; AST, aspartate aminotransferase; Cr, creatinine; TC, total cholesterol; TG, triglycerides; HDL-C, high-density lipoprotein cholesterol; LDL-C, low-density lipoprotein cholesterol; LH, luteinizing hormone; FSH, follicle-stimulating hormone; T, testosterone; E2, estradiol.