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논문 기본 정보

자료유형
학술저널
저자정보
Kang Ki-Woon (Division of Cardiology College of Medicine Heart Research Institute and Biomedical Research Institu) Ko Ju-Young (College of Pharmacy Mokpo National University Muan Korea.) Lee Hyunghee (Division of Cardiology College of Medicine Heart Research Institute and Biomedical Research Institu) Shin Seung Yong (Division of Cardiology College of Medicine Heart Research Institute and Biomedical Research Institu) Lee Wang Soo (Division of Cardiology College of Medicine Heart Research Institute and Biomedical Research Institu) Hong Joonhwa (Division of Cardiothoracic Surgery College of Medicine Chung-Ang University Hospital Chung-Ang Univ) Kim Sang-Wook (Division of Cardiology College of Medicine Heart Research Institute and Biomedical Research Institu) Lee Seong-Kyu (Department of Biochemistry and Molecular Biology School of Medicine Eulji University Daejeon Korea.) Oak Min-Ho (College of Pharmacy Mokpo National University Muan Korea.)
저널정보
대한의학회 Journal of Korean Medical Science Journal of Korean Medical Science Vol.37 No.9
발행연도
2022.3
수록면
1 - 12 (12page)
DOI
10.3346/jkms.2022.37.e55

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Background: Pericardial fat (PF) is highly associated with cardiovascular disease but the effectiveness of surgical resection of PF is still unknown for myocardial mitochondrial structure and function in acute myocardial infarction (AMI) with obesity. The aim of this study was to demonstrate the difference in myocardial mitochondrial structure and function between obese AMI with additionally resected PF and those without resected PF. Methods: Obese rats with 12-week high fat diet (45 kcal% fat, n = 21) were randomly assigned into 3 groups: obese control, obese AMI and obese AMI with additionally resected PF. One week after developing AMI and additional resection of PF, echocardiogram, myocardial mitochondrial histomorphology, oxidative phosphorylation system (OXPHOS), anti-oxidative enzyme and sarcoplasmic reticulum Ca2+ ATPase 2 (SERCA2) in the non-infarcted area were assessed between these groups. Results: There was significant improvement of systolic function in AMI with PF resection compared with the AMI group in the echocardiogram. Even though the electron microscopic morphology for the mitochondria seems to be similar between the AMI with PF resection and AMI groups, there was an improved expression of PGC-1α and responsive OXPHOS including NDUFB3, NDUFB5 and SDHB are associated with the ATP levels in the AMI with PF resection compared with those in the AMI group. In addition, the expression levels of antioxidant enzymes (MnSOD) and SERCA2 were improved in the AMI with PF resection compared with those in the AMI group. Conclusion: Surgical resection of PF might ameliorate myocardial mitochondria dysfunction in obese AMI.

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