Expression of vascular endothelial growth factor and hypoxia-inducible factor-1 alpha during the periovulatory period in goats
© 2014, TÜBITAK. To evaluate the expression of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor-1 alpha (HIF-1α) during the periovulatory period, goat ovaries were collected at 0, 4, 8, 12, 24, and 48 h after treatment with 300 IU hCG. Total cellular RNA was isolated and VEGF a...
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| Main Authors: | , , , |
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| Format: | Journal |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84909647680&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/53929 |
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| Institution: | Chiang Mai University |
| Summary: | © 2014, TÜBITAK. To evaluate the expression of vascular endothelial growth factor (VEGF) and hypoxia-inducible factor-1 alpha (HIF-1α) during the periovulatory period, goat ovaries were collected at 0, 4, 8, 12, 24, and 48 h after treatment with 300 IU hCG. Total cellular RNA was isolated and VEGF and HIF-1a were quantified using real-time RT-PCR. The mRNA levels of VEGF in thecal tissue remained unchanged prior to ovulation. However, the mRNA levels of VEGF in thecal tissues at 48 h increased to 7.5-fold of the level at 0 h (P < 0.05). In granulosa tissue, the VEGF mRNA levels were not detected in granulosa cells at 48 h. In thecal tissue, the mRNA level of HIF-1 1α at 4 h was 1.5-fold of the level at 0 h and remained unchanged during 8-24 h; however the levels were significantly increased at 48 h. The mRNA levels of HIF-1α in granulosa at 4 h was not changed but levels were increased (P < 0.05) at 8 h and at 12 h and then decreased at 24 and 48 h, respectively. These data describe the relationships of VEGF- and HIF-1α-dependent angiogenesis during the periovulatory periods by which hypoxia during ovulation is crucial for establishing the thecal new vasculature. |
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