Results 191 to 200 of about 19,913 (244)
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Neuroendocrinology of pyridoxine deficiency
Neuroscience & Biobehavioral Reviews, 1988Dihydroxyphenylalanine decarboxylase and 5-hydroxytryptophan decarboxylase respectively have high and low affinities for pyridoxal phosphate. In the pyridoxine-deficient animal, hypothalamic serotonin content is significantly reduced without any change in catecholamine levels.
K, Dakshinamurti +3 more
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Phenelzine-Induced Pyridoxine Deficiency
Journal of Clinical Psychopharmacology, 1984Six patients developed symptoms of pyridoxine deficiency while taking phenelzine. All had low pyridoxine levels, five being abnormally low. In all patients, symptoms responded to the addition of pyridoxine while continuing the antidepressant.
J W, Stewart +3 more
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Excretion of tritium-labeled pyridoxine by pyridoxine-deficient rats
Metabolism, 1966The excretion of injected doses of tritium-labeled pyridoxine was measured in rats made deficient by deprivation of the vitamin compared with rats made deficient by administering the antagonist, desoxypyridoxine. The results support the hypothesis that desoxypyridoxine blocks some of the available sites for attachment of pyridoxine phosphate.
D A, Vaughan, R L, Winders
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Levodopa and Pyridoxine-Deficient States
JAMA: The Journal of the American Medical Association, 1970To the Editor.— On theoretical grounds, extra attention should be paid to patients with Parkinson's disease being considered for levodopa therapy who also have conditions rendering them relatively pyridoxine deficient. Among the conditions associated with relative pyridoxine deficiencies are certain illnesses (diabetes mellitus, chronic alcoholism ...
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Tubuloreticular structures in pyridoxine deficiency
Experimental and Toxicologic Pathology, 1993Electron microscopic studies on renal tissue obtained from animals subjected to pyridoxine deficiency have revealed the presence of round and/or tubular bodies in the cytoplasm of endothelial cells of the glomeruli. The bodies generally occur as aggregates in association with the endoplasmic reticulum. Along with the round forms other profiles are also
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Methionine Metabolism in Pyridoxine Deficiency
Annals of Nutrition and Metabolism, 1974Methionine metabolism was studied in a group of subjects having clinical signs and symptoms of peripheral neuropathy. Following a load of methionine, these subjects excreted higher amounts of cystathionine, and the ratio of cystathionine/ cysteine sulfinic acid was elevated suggesting a block in the conversion of cystathionine to cysteine sulfinic acid.
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PYRIDOXINE DEFICIENCY IN THE NEONATAL RAT
Journal of Neurochemistry, 1969Abstract—Production of congenital Vitamin B6 (pyridoxine) deficiency in the neonatal rat is reported. Maternal pyridoxine deficiency resulted in pups with retarded neurological development and in some cases, convulsions. Litters were analysed in the neonatal period for the following: pyridoxal 5′‐phosphate and glutamic decarboxylase in whole brain ...
K, Dakshinamurti, M C, Stephens
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Rat Brain Glutathione and Pyridoxine Deficiency
Nature, 1959DOUGLAS and Mortensen1 have shown that in vivo synthesis of glutathione from glycine occurs in rat brain. If this synthesis in brain is similar to that which is known to take place in liver then it would follow the general pattern described by Snoke and Bloch2.
M J, ASHWOOD-SMITH, A D, SMITH
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Electrocardiographic Changes Due to Pyridoxine Deficiency
Pacing and Clinical Electrophysiology, 2003A young woman presented with marked alterations in the ECG without cardiological symptoms or evidence of structural heart disease after further evaluation. There was evidence of vitamin deficiency and the ECG normalized after 10 days of treatment with vitamins. Similar alterations have been described in several experimental studies with rats, but this
Eduardo, Malmierca +2 more
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