An emerging view of vitamin D.
An emerging view of vitamin D.
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维生素 D 的新观点。
DOI:
10.1080/00365519009085809
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发表时间:
1990
期刊:
影响因子:
--
通讯作者:
J. Dabek
中科院分区:
文献类型:
--
作者:
J. Dabek
Vitamin D3 (D2 is 22-ene,24-methyl D3) is a prehormone which is hydroxylated by mixed function mono-oxygenase NADPH-cytochrome P-450 ferredoxin/ferredoxin reductase systems in liver parenchyma and renal proximal tubular cells to 25-hydroxy, then 1,25-dihydroxyvitamin D, the active hormone. 1,25-dihydroxyvitamin D binds to a mainly intranuclear receptor in target cells [classically, bone, kidney and gut; now shown to be wider including parathyroid cells, endocrine cells generally and many cells of ectodermal (brain, skin) and mesodermal (blood forming cells, lymphnode cells) origin as well as tumour cells (breast, lymphoma, leukaemia)] and activates transcription for products such as calcium binding proteins, its own receptor protein, 24-hydroxylase and non-specific esterase which are active in calcium homeostasis and cell differentiation. Advanced methods for measuring components of the vitamin D endocrine system have been developed and involve column extractions, liquid chromatographic purifications (also HPLC) and protein and receptor binding assays as well as mass spectrometry. These have facilitated elucidation of vitamin D physiology (also in pregnancy and lactation) and of metabolic defects in classical, vitamin D resistant and renal rickets and osteomalacia, in sarcoidosis and in the possible involvement of the vitamin in cell differentiation, e.g. in myeloid leukaemia, and breast cancer.
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DOI:
10.1016/0022-4731(84)90063-3
发表时间:
1984-01-01
影响因子:
4.1
作者:
HOLLIS, BW
通讯作者:
HOLLIS, BW
DOI:
10.1016/s0378-4347(00)84221-8
发表时间:
1981
期刊:
Journal of chromatography
影响因子:
--
作者:
Adams,JS;Clemens,TL;Holick,MF
通讯作者:
Holick,MF
影响因子:
11.2
作者:
Koeffler,HP;Amatruda,T;Ikekawa,N;Kobayashi,Y;DeLuca,HF
通讯作者:
DeLuca,HF
影响因子:
4.8
作者:
Russell,J;Lettieri,D;Sherwood,LM
通讯作者:
Sherwood,LM
影响因子:
9.3
作者:
Hollis,BW
通讯作者:
Hollis,BW