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KMID : 1377020160130060724
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Tissue Engineering and Regenerative Medicine
2016 Volume.13 No. 6 p.724 ~ p.731
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The expression profile of angiotensin system on thawed murine ovaries
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Kim Yoon-Young
Kim Yong-Jin
Cho Kyung-Mee
Kim Soo-Hyun
Park Kyung-Eui
Kang Byeong-Cheol
Jung Kyung-Cheon
Kim Moon-Suk
Ku Seung-Yup
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Abstract
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Freezing and thawing is one of the most widely used tissue engineering techniques for the preservation of ovaries. Many cells and tissues demonstrate changes in functional gene expression after thawing. Several studies have reported the important roles of angiotensin (AT) system during the ovarian follicular growth. AT system consists of ATII, and ATII receptors type I (ATII-RI) and type II (ATII-RII). However, little is known whether frozen-thawed ovaries show any alteration of AT system member gene expression when treated with survival-enhancing factors. We aimed to investigate whether mass freezing and thawing with or without the use of Rho-associated kinase (ROCK) inhibitors up- or down-regulate the expression of ATII, ATII-RI, and ATII-RII genes on frozen-thawed ovarian tissues. Significant changes in the expression of ATII, ATII-RI, and ATII-RII genes were observed on thawed ovaries when compared to fresh control. The treatment with ROCK inhibitors did not significantly alter their expression. In conclusion, freezing and thawing of ovarian tissue may affect the mRNA expression levels of intra-ovarian AT system genes, and modulation of ROCK inhibitor activity may not regulate AT system on the frozenthawed ovarian tissue.
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KEYWORD
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Angiotensin, Freezing, Ovary, Rho-associated kinase, Thawing
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