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To observe the effect of growth hormone on serum leptin levels, serum leptin concentrations were measured by enzyme immunoassay in 12 prebutal children with growth hormone deficiency 1, 3 and 6 months before and after the treatment with recombinant human growth hormone (r hGH). For comparison, 34 normal prepubertal children were also investigated. Relationship between leptin levels and body mass index (BMI) was observed at the same time. Our results showed that serum leptin level in normal prepubertal children was 1.22±0.34 ng/ml; the pretreatment serun leptin levels in GHD children was 3.08±2.41 ng/ml, which was significantly different from those 1, 3 and 6 months after GH treatment (i.e. 1.64±1.37 ng/ml,1.57±1.40 ng/ml and 1.35±0.89 ng/ml respectively) (all P <0.001). Our results suggested that r hGH has a suppressive effect on leptin expression.
To observe the effect of growth hormone on serum leptin levels, serum leptin concentrations were measured by enzyme immunoassay in 12 prebutal children with growth hormone deficiency 1, 3 and 6 months before and after the treatment with recombinant human growth hormone (r hGH). For Relationship between leptin levels and body mass index (BMI) was observed at the same time. Our results showed that serum leptin level in normal prepubertal children was 1.22 ± 0.34 ng / ml; the pretreatment serun leptin levels in GHD children was 3.08 ± 2.41 ng / ml, which was significantly different from those 1, 3 and 6 months after GH treatment (ie 1.64 ± 1.37 ng / ml, 1.57 ± 1.40 ng / ml and 1.35 ± 0.89 ng / ml respectively (all P <0.001). Our results suggested that r hGH has a suppressive effect on leptin expression.