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Cheng PN, Sun HY, Feng IC, Wang ST, Chiu YC, Chiu HC, Chien SC, Young KC. Post-therapeutic reversibility of oxidative-stress markers in chronic hepatitis C patients receiving direct-acting antiviral agents. J Virus Erad 2023; 9:100318. [PMID: 37065432 PMCID: PMC10091014 DOI: 10.1016/j.jve.2023.100318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2022] [Revised: 12/08/2022] [Accepted: 02/19/2023] [Indexed: 02/27/2023] Open
Abstract
Introduction Hepatitis C (HCV) is associated with extra-hepatic involvment, morbidity as well as metabolic changes. Whether these might be reversible if sustained virologic response (SVR) is achieved by direct-acting antiviral (DAA) therapy remains unknown. Methods Chronic hepatitis C (CHC) individuals receiving DAA treatment with SVR were compared to those who underwent spontaneous clearance (SC) of HCV infection at the 2-year follow-up. Plasma oxidative stress markers (oxidized low-density lipoprotein (oxLDL), 8-hydroxy-2'-deoxyguanosine (8-OHdG), malondialdehyde (MDA) and ischemia-modified albumin (IMA)) as well as progression of liver fibrosis were evaluated. Results Compared to SC individuals, those in the CHC group exhibited at baseline higher levels of oxLDL, 8-OHdG and IMA but not of MDA. In the SC group, 8-OHdG levels were elevated at 2-year post-SVR (p = 0.0409), while the DAA-treated CHC group showed decrease in oxLDL (p < 0.0001) and 8-OHdG (p = 0.0255) levels, approaching those of the SC group, but increased MDA (p = 0.0055) levels. Additionally, oxLDL levels were positively correlated with liver stiffness measurements at SVR (p = 0.017) and at 1 year post- SVR (p = 0.002). Conclusions Plasma oxLDL showed post-SVR normalization after clearance of HCV viremia with DAAs and was associated with levels of hepatic fibrosis.
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Affiliation(s)
- Pin-Nan Cheng
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hung-Yu Sun
- Department of Physiology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Center of Infectious Disease and Signaling Research, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - I-Che Feng
- Department of Internal Medicine, Chi-Mei Medical Center, Tainan, Taiwan
| | - Sin-Tian Wang
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Yen-Cheng Chiu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Hung-Chih Chiu
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Shih-Chieh Chien
- Department of Internal Medicine, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Kung-Chia Young
- Center of Infectious Disease and Signaling Research, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
- Corresponding author. Department of Medical Laboratory Science and Biotechnology, College of Medicine, National Cheng Kung University, No. 1 University Rd, Tainan, 70101, Taiwan.
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Li D, Luan J, Zhang L. Molecular docking of potential SARS-CoV-2 papain-like protease inhibitors. Biochem Biophys Res Commun 2020; 538:72-79. [PMID: 33276953 PMCID: PMC7698687 DOI: 10.1016/j.bbrc.2020.11.083] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Accepted: 11/17/2020] [Indexed: 12/17/2022]
Abstract
SARS-CoV-2 papain-like protease is considered as an important potential target for anti-SARS-CoV-2 drug discovery due to its crucial roles in viral spread and innate immunity. Here, we have utilized an in silico molecular docking approach to identify the possible inhibitors of the SARS-CoV-2 papain-like protease, by screening 21 antiviral, antifungal and anticancer compounds. Among them, Neobavaisoflavone has the highest binding energy for SARS-CoV-2 papain-like protease. These molecules could bind near the SARS-CoV-2 papain-like protease crucial catalytic triad, ubiquitination and ISGylation residues: Trp106, Asn109, Cys111, Met208, Lys232, Pro247, Tyr268, Gln269, His272, Asp286 and Thr301. Because blocking the papain-like protease is an important strategy in fighting against viruses, these compounds might be promising candidates for therapeutic intervention against COVID-19.
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Affiliation(s)
- Daoqun Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China; Institute of Basic Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China; Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Junwen Luan
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China; Institute of Basic Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China; Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China
| | - Leiliang Zhang
- Department of Laboratory Medicine, The First Affiliated Hospital of Shandong First Medical University, Jinan, China; Institute of Basic Medicine, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan, China; Science and Technology Innovation Center, Shandong First Medical University & Shandong Academy of Medical Sciences, Jinan, China.
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