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Synthesis of 24,24-difluoro-25-hydroxyvitamin D3

โœ Scribed by Sachiko Yamada; Masayuki Ohmori; Hiroaki Takayama

Publisher
Elsevier Science
Year
1979
Tongue
French
Weight
227 KB
Volume
20
Category
Article
ISSN
0040-4039

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## Abstract The 25โ€hydroxyvitamin D~3~โ€24โ€hydroxylase mRNA is tightly and reciprocally regulated by 1,25โ€dihydroxyvitamin D~3~ (1,25(OH)~2~D~3~) and parathyroid hormone (PTH). The upregulation of the 24โ€hydroxylase by 1,25(OH)~2~D~3~ is well established and occurs at the transcriptional level throu