Darmadi Darmadi, Dharma Lindarto, Jelita Siregar, Tri Widyawati, Muhammad Rusda, Mustafa Mahmud Amin, Fauzi Yusuf, Putri Chairani Eyanoer, Masrul Lubis, Imelda Rey
Backgroud: Immune impairment, marked by increased expression of cytotoxic T lympho-cyte antigen (CTLA)-4, promotes the disease progression of chronic hepatitis B. Objective: This study aimed to determine the association between serum CTLA-4 level and disease progression in patients with chronic hepatitis B. Methods: A cross-sectional study was conducted at Haji Adam Malik General Hospital Medan, Indonesia between October 2021 to September 2022. A total of 150 participants were enrolled. Patients aged 18 years or older with evidence of chronic hepatitis B, HBV-related liver cirrhosis, and HBV-related hepatocellular carcinoma (HCC) were enrolled. Exclusion criteria were history of chronic hepatotoxic drug consumption, underlying liver abnormalities other than HBV infection, and liver injury due to metastasized malignancy from other sites. Serum CTLA-4 level was determined from serum using human CTLA-4 enzyme linked immunosorbent assay kit. Results: Most participants were males and aged between 40 and 60 years. Serum CTLA-4 level was positively associated with chronic hepatitis B progression (P<0.001). Serum CTLA-4 level was negatively correlated with serum platelet (P<0.001) and albumin levels (P<0.001) but positively correlated with serum ALT (P=0.045) and total bilirubin levels (P<0.001). Conclusions: Serum CTLA-4 level is associated with disease progression in patients with chronic hepatitis B. © 2023 Darmadi Darmadi, Dharma Lindarto, Jelita Siregar, Tri Widyawati, Muhammad Rusda, Mustafa Mahmud Amin, Fauzi Yusuf, Putri Chairani Eyanoer, Masrul Lubis, Imelda Rey.
Medicine Program, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Department of Internal Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Department of Clinical Pathology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Department of Pharmacology and Therapeutic, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Master Program in Tropical Medicine, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Department of Obstetrics and Gynecology, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Department of Psychiatry, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia; Department of Internal Medicine, Faculty of Medicine, Universitas Syiah Kuala, Banda Aceh, Indonesia; Department of Public Health, Faculty of Medicine, Universitas Sumatera Utara, Medan, Indonesia
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