title: Growth hormone and bone mineral densitiy in HIV-1-infected male subjects.
abstract: The aim of this study was to characterize the GH-IGF-I axis of patients with HIV-1-infection without any symptoms of AIDS-associated wasting. A special emphasis was placed on determine bone mineral density (BMD) and biochemical markers of bone metabolism. Therefore 42 male fasting HIV-1-infected outpatients were included and estimation of serum GH, IGF-I, IGFBP-1 and 3, osteocalcin, TNF-alpha, 1,25dihydroxycholecalciferol, and endocrine markers of the gonad function by commercially available RIA's performed. DEXA-measurements of the lumbar spine and the Ward's triangle of the left hip were done. The GH, IGF-1, IGFBP-1 and 3 serum levels were within the normal range Performing Spearman-correlation test, we established significance between IGF-I serum levels and BMD lumbar spine and Ward's triangle (p < 0.01, p < 0.05), CD4 cell-count (p < 0.05), 1,25dihydroxycholecalciferol (p < 0.05), osteocalcin (p < 0.05), TNF-alpha (p < 0.05), body mass index (BMI) (p < 0.05) and total testosterone (p < 0.01). IGFBP-1 correlates both inversely significantly with CD4 cell-count (p < 0.05) and serum-calcium (p < 0.05). The IGFBP-3 correlates with BMI (p < 0.05) and serum osteocalcin (p < 0.05). Correlation both with markers of bone metabolism and vitamin D metabolites showed the important role of GH/IGF-I axis in modulating the availability of calcium in chronic conditions. This axis may be in a part responsible for the manifestation of the HIV-associated osteopenia.
authors.affiliation: Medical Clinic C, Hospital Ludwigshafen am Rhein gGmbhH, Bremserstr. 79, 67063 Ludwigshafen, Germany. Teichmaj@klilu.de
authors.forename: Joachim
authors.initials: J
authors.lastname: Teichmann
authors.forename: U
authors.initials: U
authors.lastname: Lange
authors.forename: T
authors.initials: T
authors.lastname: Discher
authors.forename: J
authors.initials: J
authors.lastname: Lohmeyer
authors.forename: H
authors.initials: H
authors.lastname: Stracke
authors.forename: R G
authors.initials: RG
authors.lastname: Bretzel
mesh_terms: D000328:Adult; D015415:Biomarkers / Q000097:blood; D015519:Bone Density; D001851:Bone Diseases, Metabolic / Q000378:metabolism* / Q000821:virology*; D018791:CD4 Lymphocyte Count; D002118:Calcium / Q000378:metabolism; D015658:HIV Infections / Q000378:metabolism*; D015497:HIV-1; D019382:Human Growth Hormone / Q000097:blood*; D006801:Humans; D018970:Insulin-Like Growth Factor Binding Protein 1 / Q000097:blood; D018971:Insulin-Like Growth Factor Binding Protein 2 / Q000097:blood; D018972:Insulin-Like Growth Factor Binding Protein 3; D018969:Insulin-Like Growth Factor Binding Proteins / Q000097:blood; D007334:Insulin-Like Growth Factor I / Q000378:metabolism; D008297:Male; D008875:Middle Aged; D015675:Osteocalcin / Q000097:blood
chemical_list: D015415:Biomarkers; C032231:IGFBP1 protein, human; C515497:IGFBP3 protein, human; D018970:Insulin-Like Growth Factor Binding Protein 1; D018971:Insulin-Like Growth Factor Binding Protein 2; D018972:Insulin-Like Growth Factor Binding Protein 3; D018969:Insulin-Like Growth Factor Binding Proteins; D015675:Osteocalcin; D019382:Human Growth Hormone; D007334:Insulin-Like Growth Factor I; D002118:Calcium