Adrenomedullin has effects on hypoxia-inducible factor 1-alpha in hypoxia in several organs of female rats

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Ayşe Asiye Culum
Muhittin Yürekli

Abstract

Objective: Vascular dysfunction induces impaired O2 delivery and hypoxia, and adrenomedullin (AdM) have a role in hypoxia and angiogenesis. The reaction of the organism exposed to hypoxia and the effect of AdM over HIF-1α has been investigated in this study.


Material and Methods: Female rats were divided into 4 groups (control, hypoxia, control + AdM and hypoxia + AdM). Hypoxia groups were provided hypoxia containing 10% oxygen and 90% nitrogen for 1 week. AdM treatment groups were injected 1.25 nmol/kg AdM for 4 days intraperitoneally. AdM and HIF-1α levels were measured in heart, lung, and kidney tissues with ELISA.


Results: AdM levels increased in hypoxia + AdM group than hypoxia group, however, was not increased in control + AdM group when compared with the control group in heart tissue. Contrarily, AdM decreased in control + AdM group in the kidney, while increased in control + AdM, and hypoxia + AdM groups in the lung when compared to the control group. The HIF-1α level was higher in control + AdM group in the kidney, and hypoxia + AdM group in the lung. HIF-1α levels in heart tissue were decreased in hypoxia group when compared to the control group.


Conclusion: Tissues respond to hypoxic conditions at different times, and at distinct levels. AdM may be used to induce HIF-1α therapeutically before ischemic conditions.

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How to Cite
Culum, A. A., & Yürekli, M. (2019). Adrenomedullin has effects on hypoxia-inducible factor 1-alpha in hypoxia in several organs of female rats. Medical Science and Discovery, 6(7), 114-118. Retrieved from http://medscidiscovery.com/index.php/msd/article/view/282
Section
Research Article

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