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On the Equipotency of Vitamin D2 and D3 in Man


Authors: H. Wilczek
Authors‘ workplace: III. interní klinika 1. LF UK a VFN, Praha
Published in: Čas. Lék. čes. 1999; : 753-755
Category:

Overview

Background.
Vitamin D is an effective substance in the treatment of disorders of phosphorus-calcium homeostasis.The biological activity of vitamin D2 and D3 may however differ. The objective of the investigation is to assess thebiological action of both vitamins in man and their possible differences.Methods and Results. The group comprises two different subgroups of patients. The first is formed by 3 men,mean age 69.2 years and 9 women mean age 70.8 years. The second one comprises 14 drug addicts (10 men meanage 31.1 years and 4 women mean age 28.9 years). All patients were given for a period of two months 1300 IUvitamin D2 and D3. The vitamin D values in blood were assessed using a kit estimating 25 hydroxyvitamin D producedby Nichols Institute Diagnosis. Other laboratory indicators were assessed photometrically. The data were analyzedby the paired t-test. No significant differences of mean 25 hydroxyvitamin D levels were found.Conclusions. The results did not provide an answer to the different biological effectiveness of vitamins D2 andD3 in man.

Key words:
vitamin D2, vitamin D3, 25 hydroxyvitamin D, elderly people, drug addicts.

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Addictology Allergology and clinical immunology Angiology Audiology Clinical biochemistry Dermatology & STDs Paediatric gastroenterology Paediatric surgery Paediatric cardiology Paediatric neurology Paediatric ENT Paediatric psychiatry Paediatric rheumatology Diabetology Pharmacy Vascular surgery Pain management Dental Hygienist
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