Journal of medicine · 1989
Hypoparathyroidism during alpha-INF therapy in a patient with multiple myeloma.
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Ueki K, Tsuchida A, Murakami H, Yano S, Kobayashi N, Omine M, Naruse T
Аннотация
A 66 year-old woman with multiple myeloma developed hypoparathyroidism during combination chemotherapy with melphalan, prednisolone, and alpha-interferon (INF). Seven weeks after commencement of the therapy, the serum calcium (Ca) level decreased to 7.4 mg/dL, and the phosphorus (P) level increased to 7.2 mg/dL; parathyroid hormone (PTH) was at a critically low level. By 13 weeks after discontinuation of alpha-INF, the levels of Ca, P, and PTH had returned to normal values: 8.6 mg/dL, 4.5 mg/dL, and 310 pg/ml, respectively. These changes suggest a strong correlation between hypoparathyroidism and the administration of alpha-INF. Autoantibodies against the parathyroid gland cell were not present in the serum of this patient by indirect immunofluorescent techniques. The mechanism of hypoparathyroidism by alpha-INF could not be identified, but this is the first case of this condition during alpha-INF therapy.