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Information Journal Paper

Title

THE EFFECT OF CENTRAL INJECTION OF GHRELIN AND BOMBESIN ON MEAN PLASMA THYROID HORMONES CONCENTRATION

Pages

  627-632

Abstract

 GHRELIN increases food intakes and body weight. BOMBESIN decreases food intakes and inhibits the stimulatory effect of GHRELIN on food intakes. Thyroid hormones have a crucial role in the regulation of body weight and yet the effect of BOMBESIN on thyroid axis activity is not fully clear. Therefore, the goal of this study was to determine the effect of different doses of GHRELIN or BOMBESIN on mean plasma thyroid-stimulating hormone (TSH), TRIIODOTHYRONINE (T3) and THYROXIN (T4) concentration and also, the effect of interaction between GHRELIN and BOMBESIN on thyroid axis activity.Forty-nine rats in seven groups received saline or different doses of GHRELIN (4, 10 or 15 nmol) and BOMBESIN (2.5, 5 or 10 nmol) and forty-two rats in six groups received simultaneous injection of GHRELIN (10 or 15 nmol) and different doses of BOMBESIN (2.5, 5 or 10 nmol) via lateral cerebral ventricle. Blood samples were collected via decapitation 20 min after the injection and plasma was assayed for plasma TSH, T3 and T4 concentration by Radioimmunoassay (RIA).GHRELIN significantly decreased the concentration of mean plasma thyroid hormones compared to saline. BOMBESIN did not significantly increase thyroid hormones concentration compared to saline but BOMBESIN blocked the inhibitory effect of GHRELIN on thyroid axis activity. BOMBESIN may be the antagonist of GHRELIN action.

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    APA: Copy

    MAHMOUDI, FARIBA, MOHSENNEZHAD, FATEMEH, KHAZALI, HOMAYOUN, & EHTESHAM, HALEH. (2011). THE EFFECT OF CENTRAL INJECTION OF GHRELIN AND BOMBESIN ON MEAN PLASMA THYROID HORMONES CONCENTRATION. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR), 10(3), 627-632. SID. https://sid.ir/paper/287849/en

    Vancouver: Copy

    MAHMOUDI FARIBA, MOHSENNEZHAD FATEMEH, KHAZALI HOMAYOUN, EHTESHAM HALEH. THE EFFECT OF CENTRAL INJECTION OF GHRELIN AND BOMBESIN ON MEAN PLASMA THYROID HORMONES CONCENTRATION. IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR)[Internet]. 2011;10(3):627-632. Available from: https://sid.ir/paper/287849/en

    IEEE: Copy

    FARIBA MAHMOUDI, FATEMEH MOHSENNEZHAD, HOMAYOUN KHAZALI, and HALEH EHTESHAM, “THE EFFECT OF CENTRAL INJECTION OF GHRELIN AND BOMBESIN ON MEAN PLASMA THYROID HORMONES CONCENTRATION,” IRANIAN JOURNAL OF PHARMACEUTICAL RESEARCH (IJPR), vol. 10, no. 3, pp. 627–632, 2011, [Online]. Available: https://sid.ir/paper/287849/en

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