Dec 1, 1975

Effect of taurine on alteration in adrenal functions induced by stress

Japanese Journal of Pharmacology
K Nakagawa, K Kuriyama


When rats were exposed to immobilized cold stress, adrenaline content in the adrenal gland as well as noradrenaline content in the brain stem were reduced drastically, while noradrenaline content in the atria was not altered by the application of stress. Oral administrations of taurine (4-7 g/kg/day, for 3 days) prevented the stress-induced decline of adrenaline in the adrenal gland and this preventive effect could not be duplicated by the administration of L-isoleucine or DL-methionine. In hypophysectomized rats, the stress also induced a significant fall in adrenaline content of the adrenal gland, however taurine administration did not show significant preventive effects on the decline in adrenal catecholamines. The immobilized cold stress induced a significant increase in blood sugar and this increase was antagonized by pretreatment with taurine. Taurine had no significant effects on the stress-induced increase in the activity of adrenal tyrosine hydroxylase and the turnover rate of adrenaline in the adrenal gland measured by the rate of decline of this amine following alpha-methyl-tyrosine administration. The administration of taurine, in both in vivo and in vitro, inhibited the release of adrenaline from adrenal medullary ...Continue Reading

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Mentioned in this Paper

Corticosterone Assay
Taurine, Monopotassium Salt
Catecholamines Measurement
Malignant Neoplasm of Brain Stem
Norepinephrine, (+, -)-Isomer

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