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Effect of Zinc Deficiency on Blood Cortisol and ACTH Concentrations,Cerebrum Cortex NO Synthase Activity in Rat

Yan‐qiang Liu, Gu Jingfan

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Abstract

The effects of zinc deficiency on the serum cortisol and adrenocorticotrophic hormone (ACTH) concentration,and the cerebrum nitric oxide synthase (NOS) activity in rats were studied.Growing rats were allotted to three groups,which were zinc deficiency (ZD),paired fed (PF) and zinc supplementation after feeding zinc deficient food for 21 days (ZS).The duration of feed test was 35 days.Compared with PF rats,serum cortisol concentration in ZD ones was significantly increased,whereas serum ACTH concentration and cerebrum NOS activity were significantly decreased.The results suggested that zinc might influence the metabolism of hypothalamic hypophysial adrenocortical axis and NOS.

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What this paper is about

The effects of zinc deficiency on the serum cortisol and adrenocorticotrophic hormone (ACTH) concentration,and the cerebrum nitric oxide synthase (NOS) activity in rats were studied.Growing rats were allotted to three groups,which were zinc deficiency (ZD),paired fed (PF) and zinc supplementation after feeding zinc deficient food for 21 days (ZS).The duration of feed test was 35 days.Compared with PF rats,serum cortisol concentration in ZD ones was significantly increased,whereas serum ACTH concentration and cerebrum NOS activity were significantly decreased.The results suggested that zinc might influence the metabolism of hypothalamic hypophysial adrenocortical axis and NOS.

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Available abstract

The effects of zinc deficiency on the serum cortisol and adrenocorticotrophic hormone (ACTH) concentration,and the cerebrum nitric oxide synthase (NOS) activity in rats were studied.Growing rats were allotted to three groups,which were zinc deficiency (ZD),paired fed (PF) and zinc supplementation after feeding zinc deficient food for 21 days (ZS).The duration of feed test was 35 days.Compared with PF rats,serum cortisol concentration in ZD ones was significantly increased,whereas serum ACTH concentration and cerebrum NOS activity were significantly decreased.The results suggested that zinc might influence the metabolism of hypothalamic hypophysial adrenocortical axis and NOS.

Key concepts: Endocrinology, Internal medicine, Cerebrum, Zinc, Zinc deficiency (plant disorder), Nitric oxide synthase, Adrenocorticotropic hormone, Chemistry

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