Effects of growth hormone treatment for short stature on calcium homeostasis, bone mineralisation, and body composition.
We investigated the effect of growth hormone (GH) treatment on mineral and vitamin D homeostasis, bone mineralisation, and body composition in short-statured children without GH deficiency (GHD). 11 children received GH (0.50 +/- 0.08 IU/kg/week) for 24 weeks. 1,25-Dihydroxyvitamin D3 levels (mean +/- SD in pmol/l) rose from a baseline of 73.7 +/- 39.2 to 114.0 +/- 32.7 at 8 weeks (p < 0.05) and 111.9 +/- 39.7 at 24 weeks (p < 0.01). Body composition evaluation using dual-energy X-ray absorptiometry revealed increased lean tissue mass and a reduction in fat tissue. As a percentage of total body mass, fat decreased from 19.0 +/- 11.8% at baseline to 17.3 +/- 11.5% at 8 weeks (p < 0.005) and 16.8 +/- 11.5% at 24 weeks (p < 0.05). L2-L4 bone mineral density was 0.637 +/- 0.155 g/cm2 at baseline and 0.666 +/- 0.160 g/cm2 at 24 weeks (NS). We conclude that recombinant human GH treatment of short children without GHD has significant effects on vitamin D homeostasis and body composition.
Department of Nephrology, Prince of Wales Children's Hospital, Randwick, Sydney, Australia.
G D
GD
Ogle
A R
AR
Rosenberg
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Calligeros
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Kainer
D001823:Body Composition / Q000187:drug effects*; D002113:Calcification, Physiologic / Q000187:drug effects*; D002117:Calcitriol / Q000097:blood; D002118:Calcium / Q000378:metabolism*; D002648:Child; D005260:Female; D006130:Growth Disorders / Q000188:drug therapy*; D013006:Growth Hormone / Q000009:adverse effects / Q000494:pharmacology* / Q000627:therapeutic use; D006706:Homeostasis / Q000187:drug effects*; D006801:Humans; D007334:Insulin-Like Growth Factor I / Q000378:metabolism; D008297:Male; D011446:Prospective Studies; D011994:Recombinant Proteins / Q000009:adverse effects / Q000494:pharmacology / Q000627:therapeutic use
D011994:Recombinant Proteins; D007334:Insulin-Like Growth Factor I; D013006:Growth Hormone; D002117:Calcitriol; D002118:Calcium