RGD Reference Report - Growth hormone treatment prevents osteoporosis in uremic rats. - Rat Genome Database

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Growth hormone treatment prevents osteoporosis in uremic rats.

Authors: Berger, I  Piecha, G  Rabkin, R  Kaya, N  Geldyyev, A  Sun, D  Chen, Y  Koleganova, N  Gross, ML 
Citation: Berger I, etal., Histol Histopathol. 2007 Nov;22(11):1231-9.
RGD ID: 10003128
Pubmed: PMID:17647196   (View Abstract at PubMed)

INTRODUCTION: Growth hormone (GH) is responsible for longitudinal bone growth. GH-receptor in the growth plate was found to be decreased in chronic renal insufficiency. A therapeutic use of GH in chronic renal insufficiency is not established. The current study aims to clarify the effects of GH treatment on bone metabolism in a uremic rat model. METHODS: Sprague Dawley rats were subjected to subtotal surgical renal ablation (SNX) or sham operation. SNX rats were randomized into 4 groups: treated with different doses of GH (1.5, 4.0, or 10.0 mg/kg) or vehicle after 10 weeks of uremia and treated for 6 weeks. Bone and renal morphology was evaluated: bone density, thickness of spongiosa, osteoblast surface, osteoid volume, osteoclast quantity, and resorptive volume. RESULTS: GH treatment resulted in a decrease of resorption area and lower number of osteoclasts. Osteoid volume, number of osteoblasts, percentage of active osteoblasts, thickness of the growth plate and mean cortical width increased. GH receptor (GHR) protein expression increased in GH treated rats. IGF-1 expression was decreased in osteoblasts and chondroblasts of SNX-V rats and increased following GH treatment. The TGF-beta expression was down regulated in SNX+V group in osteocytes and chondroblasts as compared to sham operated animals. The down regulation was prevented in treated animals irrespective of the dose given. CONCLUSIONS: Treatment with GH in uremic animals increased bone density to the levels of non-uremic controls. Thus GH seems to have a potential of preventing renal osteodystrophy.



RGD Manual Disease Annotations    Click to see Annotation Detail View

  
Object SymbolSpeciesTermQualifierEvidenceWithNotesSourceOriginal Reference(s)
GHRHumanosteoporosis treatmentISOGhr (Rattus norvegicus)associated with Uremia more ...RGD 
GhrRatosteoporosis treatmentIEP associated with Uremia more ...RGD 
GhrMouseosteoporosis treatmentISOGhr (Rattus norvegicus)associated with Uremia more ...RGD 
IGF1Humanosteoporosis treatmentISOIgf1 (Rattus norvegicus)associated with Uremia more ...RGD 
Igf1Ratosteoporosis treatmentIEP associated with Uremia more ...RGD 
Igf1Mouseosteoporosis treatmentISOIgf1 (Rattus norvegicus)associated with Uremia more ...RGD 
TGFB1Humanosteoporosis treatmentISOTgfb1 (Rattus norvegicus)associated with Uremia more ...RGD 
Tgfb1Ratosteoporosis treatmentIEP associated with Uremia more ...RGD 
Tgfb1Mouseosteoporosis treatmentISOTgfb1 (Rattus norvegicus)associated with Uremia more ...RGD 

Objects Annotated

Genes (Rattus norvegicus)
Ghr  (growth hormone receptor)
Igf1  (insulin-like growth factor 1)
Tgfb1  (transforming growth factor, beta 1)

Genes (Mus musculus)
Ghr  (growth hormone receptor)
Igf1  (insulin-like growth factor 1)
Tgfb1  (transforming growth factor, beta 1)

Genes (Homo sapiens)
GHR  (growth hormone receptor)
IGF1  (insulin like growth factor 1)
TGFB1  (transforming growth factor beta 1)


Additional Information