منابع مشابه
Vitamin D deficiency and renal calcium transport in the rat.
To examine the role of vitamin D in the renal tubular handling of calcium, clearance studies were performed in three groups of rats: group A rats fed a standard vitamin D-deficient diet (Ca 0.45%, P 0.3%) for 6 wk, were hypocalcemic with secondary hyperparathyroidism; group B rats fed the same diet as in group A but with high calcium (Ca 1.4%) and 20% lactose, were normocalcemic and without sec...
متن کاملVitamin E deficiency and ion transport in rat-liver slices.
Rat-liver slices lose potassiumwhenplaced in cold saline solution and reaccumulate potassium when placed in warm oxygenated Ringer solution (McLean, 1963). Weanling rats fed on a yeast diet which is deficient in vitamin E and selenium suffer acute liver necrosis at 17 ± 4 days after starting to eat the diet. Liver slices taken from rats given this diet for 7 days or more cannot reaccumulate pot...
متن کاملPlacental transport of vitamin B12 in the pregnant rat.
Placental transport of vitamin B(12) was studied in the pregnant rat in two series of experiments. In the first series animals were given cyanocobalamin-(57)Co intravenously at various stages of gestation. High specific activity tracer was used and doses of B(12) were 1-2 ng per animal. The rats were killed from 15 min to 24 hr after injection and the fetuses, placentas, and serum were assayed ...
متن کاملVitamin D and plasma phosphatase in the rat.
It is well established t,hat in man plasma phosphatase is greatly increased in rickets and in some other bone diseases (l-6). A similar relationship has been found in various experimental animals, viz. chicks (7-9), sheep (lo), dogs (ll-13), and calves (14, 15). In rats, however, the reports hare been contradictory. Sure and coworkers (16) found no difference between rachitic and vitamin D-trea...
متن کاملHuman plasma transport of vitamin D after its endogenous synthesis.
Transport of vitamin D3 from its sites of cutaneous synthesis into the circulation has been assumed to be via the plasma vitamin D binding protein (DBP). We studied vitamin D transport from the skin in seven healthy volunteers who received whole body irradiation with 27 mJ/cm2 dosage of ultraviolet B light (290-320 nm). Samples of venous blood were collected serially in EDTA and immediately chi...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1972
ISSN: 0021-9258
DOI: 10.1016/s0021-9258(19)45459-8