Yonsei Med J.
2003 Oct;44(5):923-927.
Inherited Vitamin K Deficiency: Case Report and Review of Literature
- Affiliations
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- 1Department of Pediatrics, Ataturk Universitesi Dis Hekimligi Fakultesi, Periodontoloji Anabilim Dali, 25240 Erzurum, Turkey. zerrinorbak@yahoo.com
- 2Department of Pediatric Gastroenterology, Ataturk University Faculty of Medicine, Erzurum, Turkey.
- 3Department of Pediatrics, Ataturk University Faculty of Medicine, Erzurum, Turkey.
Abstract
- Vitamin K is the cofactor for the hepatic carboxylation of glutamic acid residues in a number of proteins including the procoagulants factors ll, Vll, lX, and X. The role of vitamin K in normal bone function is not fully understood. Inherited deficiency of vitamin K dependent coagulation factors is a rare bleeding disorder reported only in a few patients. Here we present an 18-month old child who presented with osteopeni due to inherited vitamin K deficiency. While the patient had high bone specific alkaline phosphatase and parathyroid hormone levels and low osteocalcin and bone mineral density values, with the regular supplementation of vitamin K all the mentioned parameters returned to normal values.
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