Marine-Steroid Derivative 5α-Androst-3β, 5α, 6β-triol Protects Retinal Ganglion Cells from Ischemia–Reperfusion Injury by Activating Nrf2 Pathway oleh Longxiang Sheng, Bingzheng Lu, Hui Chen, Yun Du, Chen Chen, Wei Cai, Yang Yang, Xuyan Tian, Zhaofeng Huang, Wei Chi, Suizhen Lin, Guangmei Yan, Wei Yin