Antipyrine induction and hepatic vitamin D hydroxylation in man [proceedings]
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چکیده
منابع مشابه
The hydroxylation of phenylalanine and antipyrine in phenylpyruvic oligophrenia.
In normal individuals the major portion of ingested phenylalanine is converted into tyrosine. In the disease phenylpyruvic oligophrenia, however, ingested phenylalanine is converted mainly into phenylpyruvic and phenyllactic acids (l), which are excreted in the urine. This phenomenon has been ascribed to the inability of the body to convert phenylalanine to tyrosine (2) and a consequent shuntin...
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1. The effects of vitamin D and its hydroxylated derivatives on calcium and magnesium absorption have been examined in 47 balance studies on patients with various disorders of calcium or bone metabolism. 2. Vitamin D significantly increased the mean net absorption of calcium and also the calcium balance. The mean net absorption of magnesium was also significantly increased although the rise was...
متن کاملCalcitriol/calcifediol ratio: An indicator of vitamin D hydroxylation efficiency?
BACKGROUND Calcifediol (25D) availability is crucial for calcitriol (1,25D) synthesis, but regulation of vitamin D hydroxylases is majorly responsible for 1,25D synthesis. The net efficiency of vitamin D hydroxylases might be informative. We assume that the ratio between calcitriol and calcifediol (25D/1,25D) serum concentrations could suggest the vitamin D hydroxylation efficiency. METHODS W...
متن کاملVitamin D metabolism and parathyroid function in man.
1. The metabolism of an intravenous pulse dose of double-isotope-labelled cholecalciferol has been studied in control subjects with widely differing states of vitamin D nutrition and in patients with primary disorders of parathyroid function. 2. The formation of labelled 1,25-dihydroxy-cholecalciferol [1,25-(OH)2D3] and labelled 24,25-dihydroxycholecalciferol [24,25-(OH)2D3] has been related to...
متن کاملPolymorphic hydroxylation of perhexiline maleate in man.
Long term perhexiline maleate therapy causes peripheral neuropathy and hepatic damage in certain subjects. An association between these adverse reactions and a genetically determined relative inability to hydroxylate debrisoquine has been described. This association could indicate either that the effects of perhexiline impair debrisoquine oxidation thus producing a phenocopy, or that perhexilin...
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ژورنال
عنوان ژورنال: British Journal of Clinical Pharmacology
سال: 1979
ISSN: 0306-5251
DOI: 10.1111/j.1365-2125.1979.tb00962.x