单位:[1]Beijing University of Chinese Medicine, Beijing, 100029, China[2]Department of Ophthalmology, China-Japan FriendshipHospital, Beijing, 100029, China[3]Clinical Medical Research Institute, China-Japan Friendship Hospital, Beijing, 100029,China
Retinal hypoperfusion injury is the pathophysiologic basis of ocular ischemic syndrome (OIS) which often leads to severe visual loss. In this study, we aimed to establish a rat model of retinal chronic hypoperfusion by bilateral common carotid artery occlusion (BCCAO) and observe changes in the retinal function and morphology. We found that model rats showed retinal arteriosclerosis, slight dilated retinal vein, small hemangiomas, hemorrhages, vascular segmental filling, and nonperfused areas after 2 weeks of BCCAO. In the model rats, the retinal circulation time was significantly prolonged by fluorescein fundus angiography (FFA), the latency of a and b waves was delayed and the amplitude was decreased significantly at each time point by electroretinogram (ERG), and the perfusion of the eyes continued to reduced. Morphologic and ultrastructuraI changes covered that the retinal ganglion cells (RGCs) presented obvious apoptosis and the thickness in the retinal layers were significantly thinner. Collectively, these findings suggested that BCCAO induced retinal hypoperfusion injury in the model rats, thus providing an ideal animal model for the study of OIS.
基金:
Department of Ophthalmology and Clinical Medical Research Institute of China-Japan Friendship Hospital; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [81574029]
第一作者单位:[1]Beijing University of Chinese Medicine, Beijing, 100029, China[2]Department of Ophthalmology, China-Japan FriendshipHospital, Beijing, 100029, China
通讯作者:
推荐引用方式(GB/T 7714):
Qin Yali,Ji Meiqi,Deng Tingting,et al.Functional and morphologic study of retinal hypoperfusion injury induced by bilateral common carotid artery occlusion in rats[J].SCIENTIFIC REPORTS.2019,9:doi:10.1038/s41598-018-36400-5.
APA:
Qin, Yali,Ji, Meiqi,Deng, Tingting,Luo, Dan,Zi, Yingxin...&Jin, Ming.(2019).Functional and morphologic study of retinal hypoperfusion injury induced by bilateral common carotid artery occlusion in rats.SCIENTIFIC REPORTS,9,
MLA:
Qin, Yali,et al."Functional and morphologic study of retinal hypoperfusion injury induced by bilateral common carotid artery occlusion in rats".SCIENTIFIC REPORTS 9.(2019)