Title
Medical Image Analysis of Telmisartan-Induced Protection in Hippocampal CA1 After Chronic Intermittent Hypoxia
Abstract
Objective: In this paper, we evaluate medical image analysis in hippocampus, immunohistochemistry analyzed and oxidative stress-mediated injury induced by chronic intermittent hypoxia on the mouse hippocampal CA1 area and the protective effects of telrnisartan (TEL) on oxidative stress-mediated injury. Methodology: C57B6J mice have been randomly categorized as chronic intermittent hypoxia (CIH) group, CIH +telmisartan (CIH +TEL) group, the room air control group and blank control group, and examined during a period of 12 weeks. Brain images were obtained by Computed tomography scan, spatial learning and memory abilities were tested, and p47 NADPH oxidase subunit (p47PH 1 and 8-hydroxy-guanosine (8-0HG) were measured in the hippocampal CA1 area by irnmunohistochemistry and analyzed by Image-Pro Plus 6.0. Results: (1) After 12 weeks, there were no abnormalities in mice brain by CT scan. (2) Spatial learning ability measured by escape latency from the Morris water maze in the hypoxia group decreased, while intervention with telmisartan improved the hypoxiainduced spatial learning deficit (F = 3.04, P = 0.045). There exist no differences in spatial memory among any groups. (3) p47(PHOX) immunostaining significantly increased in hippocarnpal CA1 area after CIH, which was reduced by TEL intervention. (4) CIH significantly increased 8-OHG immunostaining in the hippocampal CA1 area, while intervention with TEL significantly reduced 8-OHG immunostaining. Conclusions: Telmisartan significantly reduced expression of NADPH oxidase p47(PHOX) and 8-OHG in CIH mice, and improved hippocarnpusdependent learning, suggesting that telmisartan can reduce CIH-induced neuronal oxidative stress-mediated injury.
Year
DOI
Venue
2020
10.1166/jmihi.2020.3251
JOURNAL OF MEDICAL IMAGING AND HEALTH INFORMATICS
Keywords
DocType
Volume
Computed Tomography,Angiotensin Receptor Inhibitors,Chronic Intermittent Hypoxia,Cognitive Dysfunction,Medical Image Analysis
Journal
10
Issue
ISSN
Citations 
12
2156-7018
0
PageRank 
References 
Authors
0.34
0
7
Name
Order
Citations
PageRank
Yixiang Zhang100.34
Yupeng Zhang200.34
Yiming Zeng3252.61
Xiaoyang Chen400.34
Wanyu Wang500.34
Zhaoguo Lin600.34
Riguang Zhong700.34