1α-Hydroxyvitamin D3 Plus 25-Hydroxyvitamin D3 Reduces Parturient Paresis in Dairy Cows Fed High Dietary Calcium
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چکیده
منابع مشابه
Serum 25-hydroxyvitamin D3 and 24R,25-dihydroxyvitamin D3 concentrations in adult dogs are more substantially increased by oral supplementation of 25-hydroxyvitamin D3 than by vitamin D3
We previously found a weak response in serum 25-hydroxyvitamin D3 (25(OH)D3) concentrations when dogs were supplemented with oral vitamin D3 (D3). In the present study, we determined the relative potency of oral 25(OH)D3 compared with D3 for increasing vitamin D status in dogs with low serum 25(OH)D concentrations. Four male and three female, 4-year-old, intact, lean, genetically related, Chine...
متن کاملAssay for plasma 25-hydroxyvitamin D2 and 25-hydroxyvitamin D3 by "high-performance" liquid chromatography.
We describe a new, rapid, and simple column-chromatographic procedure for 25-OH vitamin D3 in plasma. The vitamin is extracted by use of Sep-pak C18 (octadecyl alkylated silicic acid), a short factory-packed reversed-phase column, and 25-OH vitamin D2 + 25-OH vitamin D3 fraction is eluted with methanol/water. The 25-OH D2 and 25-OH D3 are then well resolved on a high-resolution 3-micrometer sil...
متن کاملBoth 25-Hydroxyvitamin-D3 and 1,25-Dihydroxyvitamin-D3 Reduces Inflammatory Response in Human Periodontal Ligament Cells
Periodontitis is an inflammatory disease leading to the destruction of periodontal tissue. Vitamin D3 is an important hormone involved in the preservation of serum calcium and phosphate levels, regulation of bone metabolism and inflammatory response. Recent studies suggest that vitamin D3 metabolism might play a role in the progression of periodontitis. The aim of the present study was to exami...
متن کاملRelative effectiveness of oral 25-hydroxyvitamin D3 and vitamin D3 in raising wintertime serum 25-hydroxyvitamin D in older adults.
BACKGROUND The relative potency of 25-hydroxyvitamin D3 to vitamin D3 needs to be better defined so that food-composition tables can better reflect the true vitamin D nutritive value of certain foods. OBJECTIVE We performed a randomized, controlled intervention study in apparently healthy, free-living adults to investigate whether the intake of 25-hydroxyvitamin D3 is 5 times more potent in r...
متن کاملAntagonistic Actions in Vivo of (23S)-25-Dehydro-1α-Hydroxyvitamin D3-26,23-Lactone on Calcium Metabolism Induced by 1α,25-Dihydroxyvitamin D3.
The vitamin D analog, (23S)-25-dehydro-1a-hydroxyvitamin D326,23-lactone (TEI-9647), is an antagonist of the 1a,25-dihydroxyvitamin D3 [1a,25(OH)2D3] nuclear receptor (VDR)-mediated differentiation of human leukemia (HL-60) cells. To clarify whether TEI-9647 could function as an antagonist of 1a,25(OH)2D3 in vivo, we investigated in vitamin D-deficient (-D) rats the effects of single doses of T...
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ژورنال
عنوان ژورنال: Journal of Dairy Science
سال: 1992
ISSN: 0022-0302
DOI: 10.3168/jds.s0022-0302(92)77785-6