Article
Mechanisms for the reduction of 24,25-dihydroxyvitamin D3 levels and bone mass in 24-hydroxylase transgenic rats.
FASEB journal : official publication of the Federation of American Societies for Experimental Biology - 1 Apr 2003
Hosogane Naobumi, Shinki Toshimasa, Kasuga Hisao, Taketomi Shigehisa, Toyama Yoshiaki, Suda Tatsuo
Abstract excerpt
24-Hydroxylase (CYP24) is an enzyme distributed in the target tissues of 1alpha,25-dihydroxyvitamin D3 [1alpha,25(OH)2D3]. Two functions for this enzyme have been reported: One is production of 24,25-dihydroxyvitamin D3 [24,25(OH)2D3] and the other is inactivation of 1alpha,25(OH)2D3. To elucidate other physiologic roles of CYP24 in vivo, we previously generated rats that constitutively express the CYP24 gene....
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