Huisun Wang1, Yoonyoung Chung2, Sun-Kyoung Yu3, Yonghyun Jun4. 1. Department of Neurosurgery, Chosun University Hospital, Gwang-ju, Republic of Korea. 2. Department of Anatomy, School of Medicine, Chosun University, Gwang-ju, Republic of Korea. 3. Department of Oral Anatomy, School of Dentistry, Chosun University, Gwang-ju, Republic of Korea. 4. Department of Anatomy, School of Medicine, Chosun University, Gwang-ju, Republic of Korea jyh1483@chosun.ac.kr.
Abstract
BACKGROUND/AIM: There is no consensus on the effect of hypoxia on neurogenesis. In this study, we investigated the immunoreactivity of BDNF and PI3K/Akt signaling after uterine artery ligation in pregnant rats. MATERIALS AND METHODS: Unilateral uterine artery ligation was performed at 16 days of gestation (dg). Fetuses from one horn with ligated artery were allocated to the hypoxic group. Immunohistochemistry was performed with primary antibodies; NeuN, BDNF, PI3K, Akt and phospho-Akt (pAkt). RESULTS: The densities of NeuN- and BDNF-immunoreactive (IR) cells in the cerebral cortex were lower in the hypoxic fetuses than in the controls at 21 dg. The density of PI3K and pAkt-IR cells in the cortex of the hypoxic group significantly decreased. The results in dentate gyrus were similar to the results in the cerebral cortex. CONCLUSION: Prenatal hypoxia reduced Akt phosphorylation, which affected neuronal survival in the cortex and dentate gyrus. Copyright
BACKGROUND/AIM: There is no consensus on the effect of hypoxia on neurogenesis. In this study, we investigated the immunoreactivity of BDNF and PI3K/Akt signaling after uterine artery ligation in pregnant rats. MATERIALS AND METHODS: Unilateral uterine artery ligation was performed at 16 days of gestation (dg). Fetuses from one horn with ligated artery were allocated to the hypoxic group. Immunohistochemistry was performed with primary antibodies; NeuN, BDNF, PI3K, Akt and phospho-Akt (pAkt). RESULTS: The densities of NeuN- and BDNF-immunoreactive (IR) cells in the cerebral cortex were lower in the hypoxic fetuses than in the controls at 21 dg. The density of PI3K and pAkt-IR cells in the cortex of the hypoxic group significantly decreased. The results in dentate gyrus were similar to the results in the cerebral cortex. CONCLUSION: Prenatal hypoxia reduced Akt phosphorylation, which affected neuronal survival in the cortex and dentate gyrus. Copyright
Authors: Yong Hyun Jun; Gang San Ju; Yoon Young Chung; Hye-Kyoung Shin; Dong-Joon Kim; Min Seon Choi; Seong Taeck Kim; Kyung Min Son Journal: In Vivo Date: 2020 Jan-Feb Impact factor: 2.155