RELATIONSHIP BETWEEN GHRELIN AND ESTROGEN IN THE OVARY OF PREGNANT SHEEP

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SOOKHTEHZARI A.; ALIREZAEI M.

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Journal: Iranian Journal of Veterinary Medicine Year:2016 | Volume:10 | Issue:2 Page(s): 135-141

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Information Journal Paper

Title

RELATIONSHIP BETWEEN GHRELIN AND ESTROGEN IN THE OVARY OF PREGNANT SHEEP

Author(s)

SOOKHTEHZARI A. | ALIREZAEI M. | Issue Writer Certificate

Keywords

CORPORA LUTEAQ1

ESTROGENQ1

FOLLICLEQ1

GHRELINQ1

SHEEPQ2

Abstract

BACKGROUND: GHRELIN, an endogenous ligand for the growth secretagogue receptor is predominantly produced in the stomach and an expression of GHRELIN has recently been identified in placenta and ovary.OBJECTIVES: Therefore, we decited to measure ovarian GHRELIN as quantitative and evaluate the correlation between GHRELIN and ESTROGEN during second half of ovine pregnancy.METHODS: The ovarian samples were collected from 40 pregnant SHEEP in 3, 3.5, 4, 4.5 and 5 months of pregnancy in a local abattoir. FOLLICLEs and active CORPORA LUTEA (CL) were dissected from surrounding tissues, separately. The samples were homogenized with phosphate buffer (0.1 M, pH=7.4) on liquid nitrogen to provide fluid samples. GHRELIN and ESTROGEN concentrations were measured by ELISA method and expressed as milligram (mg) and picogram (pg) per mg of tissue protein, respectively.RESULTS: There was a linear correlation between GHRELIN and ESTROGEN in ovarian FOLLICLEs (r=0.97 and p=0.004), but not in CL. Follicular GHRELIN significantly increased in 4, 4.5 and 5 months (p<0.001) but CL GHRELIN significantly decreased in the 4.5 month of ovine pregnancy (p<0.01). ESTROGEN concentration was also significantly higher in 4-5 months of pregnancy in ovarian FOLLICLEs (p<0.001) but potent CL indicated higher ESTROGEN level only in the 5th month of pregnancy (p<0.001).CONCLUSIONS: These results emphasize the role of GHRELIN in the reproductive system and open a new window to future studies.

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APA: Copy

SOOKHTEHZARI, A., & ALIREZAEI, M.. (2016). RELATIONSHIP BETWEEN GHRELIN AND ESTROGEN IN THE OVARY OF PREGNANT SHEEP. IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH), 10(2), 135-141. SID. https://sid.ir/paper/157894/en

Vancouver: Copy

SOOKHTEHZARI A., ALIREZAEI M.. RELATIONSHIP BETWEEN GHRELIN AND ESTROGEN IN THE OVARY OF PREGNANT SHEEP. IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH)[Internet]. 2016;10(2):135-141. Available from: https://sid.ir/paper/157894/en

IEEE: Copy

A. SOOKHTEHZARI, and M. ALIREZAEI, “RELATIONSHIP BETWEEN GHRELIN AND ESTROGEN IN THE OVARY OF PREGNANT SHEEP,” IRANIAN JOURNAL OF VETERINARY MEDICINE (INTERNATIONAL JOURNAL OF VETERINARY RESEARCH), vol. 10, no. 2, pp. 135–141, 2016, [Online]. Available: https://sid.ir/paper/157894/en

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