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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Regression of skeletal manifestations of hyperparathyroidism with oral vitamin D.

CONTEXT: Parathyroidectomy is the only effective therapy for osteitis fibrosa cystica in hyperparathyroidism. OBJECTIVE: The objective of this study was to describe the changes of skeletal and nonskeletal manifestations in a patient with hyperparathyroidism and renal failure after oral vitamin D therapy. DESIGN: This was a descriptive case report. SETTING: The patient was followed up in a referral center. PATIENT: A 55-yr-old male patient with moderate renal failure was referred for expansile lytic lesions affecting several ribs and the spinous process of T12. His creatinine was 1.8 mg/dl; calcium, 8.9 mg/dl; PTH, 666 pg/ml; and 1,25 dihydroxy-vitamin D, 27 pg/ml. Bone mineral density (BMD) Z-scores by dual-energy x-ray absorptiometry were -4.1 at the spine, -1.7 at the hip, and -4.3 at the forearm. MAIN OUTCOME MEASURES: The main outcome measures were the skeletal manifestations of hyperparathyroidism. RESULTS: At 10 months of therapy, calcium level was 10 mg/d, PTH level declined to 71 pg/ml, and BMD increased by 12% at the spine and 18% at the hip. Computerized tomography (CT) cuts revealed marked regression in the lytic lesions. At 2 yr, BMD increased by an additional 6% at the spine, and there were no further changes in the lytic lesions by CT. The vitamin D receptor genotype using the restriction enzymes Bsm1, Taq1, and Apa1 was Bb, tt, and AA. CONCLUSIONS: We showed regression of severe skeletal abnormalities of hyperparathyroidism documented by serial CT images in response to oral vitamin D therapy. It is possible that the vitamin D receptor genotype of the patient modulated this response.[1]

References

  1. Regression of skeletal manifestations of hyperparathyroidism with oral vitamin D. Arabi, A., Khoury, N., Zahed, L., Birbari, A., El-Hajj Fuleihan, G. J. Clin. Endocrinol. Metab. (2006) [Pubmed]
 
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