RGD Reference Report - Impairment of bone status in patients with central diabetes insipidus. - Rat Genome Database

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Impairment of bone status in patients with central diabetes insipidus.

Authors: Pivonello, R  Colao, A  Di Somma, C  Facciolli, G  Klain, M  Faggiano, A  Salvatore, M  Lombardi, G 
Citation: Pivonello R, etal., J Clin Endocrinol Metab. 1998 Jul;83(7):2275-80.
RGD ID: 7207422
Pubmed: PMID:9661594   (View Abstract at PubMed)
DOI: DOI:10.1210/jcem.83.7.4987   (Journal Full-text)

The aim of the current study was to evaluate the biochemical parameters of bone metabolism and the bone mineral density (BMD) in patients with central diabetes insipidus, either treated or not treated with endonasal desmopressin. Eighteen patients with central diabetes insipidus and 18 sex- and age-matched healthy subjects entered the study. The patients were divided into 2 groups: patients who did not receive treatment with desmopressin for at least 1 yr (group 1), and patients chronically treated with desmopressin since the diagnosis of diabetes insipidus (group 2). Serum osteocalcin and urinary cross-linked N-telopeptide of type I collagen levels were measured in all patients and controls using RIA and enzyme-linked immunosorbent assay kits, respectively. BMD was measured at the lumbar spine (L1-L4) and at the femoral neck in all subjects, using a Hologic QDR 1000 analyzer (Hologic Inc., Waltham, MA). Serum osteocalcin concentrations were significantly lower, both in patients of group 1 and group 2, compared with healthy subjects (5.1 +/- 0.6 and 4.5 +/- 0.3 vs. 7.9 +/- 0.2 micrograms/L, P < 0.05), whereas urinary cross-linked N-telopeptide of type I collagen concentrations were similar in the three groups of subjects (72.8 +/- 2.2, 71.6 +/- 2.7, and 64.6 +/- 1.7 nmol bone collagen equivalent/mmol creatinine). BMD was significantly decreased in patients of groups 1 and 2, compared with controls, both at lumbar spine (0.84 +/- 0.06 and 0.87 +/- 0.04 vs. 1.01 +/- 0.02 g/cm2, P < 0.05) and femoral neck (0.78 +/- 0.06 and 0.80 +/- 0.04 vs. 0.93 +/- 0.02 g/cm2, P < 0.05). A significant inverse correlation was found between disease duration and BMD values, evaluated as T scores, both at lumbar spine (group 1: r = -0.952, P < 0.005; group 2: r = -0.921, P < 0.001) and at femoral neck (group 1: r = -0.914, P < 0.05; group 2: r = -0.683, P < 0.05). In conclusion, patients with central diabetes insipidus had a significant bone impairment, compared with healthy subjects. Replacement with endonasal desmopressin at standard doses was not able to prevent or reverse the bone impairment. These findings suggest that, in patients with central diabetes insipidus, bone status analysis is mandatory; and a bone-loss preventing treatment might be beneficial.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
diabetes insipidus  IEP 7207422protein:decreased expression:serum:RGD 
diabetes insipidus  ISOBGLAP (Homo sapiens)7207422; 7207422protein:decreased expression:serum:RGD 

Objects Annotated

Genes (Rattus norvegicus)
Bglap  (bone gamma-carboxyglutamate protein)

Genes (Mus musculus)
Bglap  (bone gamma carboxyglutamate protein)

Genes (Homo sapiens)
BGLAP  (bone gamma-carboxyglutamate protein)


Additional Information