Background/aims: We measured the association between underlying chronic hepatitis B (CHB) and antiviral use with infection rates among patients who underwent severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) testing.
Methods: In total, 204,418 patients who were tested for SARS-CoV-2 between January and June 2020 were included. For each case patient (n = 7,723) with a positive SARS-CoV-2 test, random controls (n = 46,231) were selected from the target population who had been exposed to someone with coronavirus disease 2019 (COVID-19) but had a negative SARS-CoV-2 test result. We merged claim-based data from the Korean National Health Insurance Service database collected. Primary endpoints were SARS-CoV-2 infection and severe clinical outcomes of COVID-19.
Results: The proportion of underlying CHB was lower in COVID-19 positive patients (n = 267, 3.5%) than in COVID-19 negative controls (n = 2482, 5.4%). Underlying CHB was associated with a lower SARS-CoV-2 positivity rate, after adjusting for comorbidities (adjusted odds ratio [aOR] 0.65; 95% confidence interval [CI], 0.57-0.74). Among patients with confirmed COVID-19, underlying CHB tended to confer a 66% greater risk of severe clinical outcomes of COVID-19, although this value was statistically insignificant. Antiviral treatment including tenofovir and entecavir was associated with a reduced SARS-CoV-2 positivity rate (aOR 0.49; 95% CI, 0.37-0.66), while treatment was not associated with severe clinical outcomes of COVID-19.
Conclusions: Underlying CHB and antiviral agents including tenofovir decreased susceptibility to SARS-CoV-2 infection. HBV coinfection did not increase the risk of disease severity or lead to a worse prognosis in COVID-19.
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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8491877 | PMC |
http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0258229 | PLOS |
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December 2024
Department of Laboratory Medicine, Nanjing Drum Tower Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing, China.
Background: HBeAg-positive chronic hepatitis B (CHB) with low HBsAg levels represents a relatively rare serological pattern and is closely associated with the severity of liver disease. However, the underlying mechanisms in such cases remain largely unclear.
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J Proteome Res
December 2024
Department of Laboratory Medicine, the First Affiliated Hospital, Fujian Medical University, Fuzhou 350005, China.
Peg-IFNα is one of the current therapeutic strategies for Hepatitis B virus (HBV) seroclearance. Nevertheless, the underlying mechanisms are not yet adequately understood. The objective of this study was to explore the potential mechanisms using multiomics approach.
View Article and Find Full Text PDFJ Ayub Med Coll Abbottabad
November 2024
Department of Pathology, Ayub Medical College Abbottabad-Pakistan.
Background: Complete heart block (CHB) is a relatively common complication in post-acute myocardial infarction (AMI) patients. Data on the incidence and consequences of CHB in patients with ST-segment elevation myocardial infarction (STEMI) are limited. Besides serving as an indicator of widespread myocardial injury, the development of CHB in STEMI is also associated with a higher risk of sudden cardiac death.
View Article and Find Full Text PDFFront Immunol
November 2024
Department of Laboratory Medicine, Fujian Key Laboratory of Laboratory Medicine, Gene Diagnosis Research Center, Fujian Clinical Research Center for Clinical Immunology Laboratory Test, The First Affiliated Hospital, Fujian Medical University, Fuzhou, China.
Background: The varying individual responses to Pegylated interferon-α (Peg-IFNα) in patients with chronic hepatitis B (CHB) pose significant hurdles in treatment optimization, and the underlying mechanisms remain unclear.
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Heliyon
October 2024
Department of Gastroenterology, The Second Hospital of Hebei Medical University, Hebei Key Laboratory of Gastroenterology, Hebei Institute of Gastroenterology, Hebei Clinical Research Center for Digestive Diseases, Shijiazhuang, China.
Hepatitis B Virus-related acute-on-chronic liver failure (HBV-ACLF) is a severe complication with high fatality rates. However, the underlying mechanisms are still elusive and require further investigation. In this report, we described a case of type A HBV-ACLF in which significant changes were found in monocyte gene expression through single-cell RNA sequencing (scRNA-seq).
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