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 afte...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.展开更多
The quality of r-hGH has been appraised by various analytical techniques in-cluding SDS-PAGE, IEF. HPSEC, RP-HPLC, ELISA. Dot-immunobinding assay, DIG labeling DNAhybridization and bioassay The results shouwed that th...The quality of r-hGH has been appraised by various analytical techniques in-cluding SDS-PAGE, IEF. HPSEC, RP-HPLC, ELISA. Dot-immunobinding assay, DIG labeling DNAhybridization and bioassay The results shouwed that the quality of the domestic products of r-hGHreached the international level.展开更多
文摘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.
文摘The quality of r-hGH has been appraised by various analytical techniques in-cluding SDS-PAGE, IEF. HPSEC, RP-HPLC, ELISA. Dot-immunobinding assay, DIG labeling DNAhybridization and bioassay The results shouwed that the quality of the domestic products of r-hGHreached the international level.