Objective: To study the association between hepatitis B virus (HBV) mutants and the pathogenesis of severe hepatitis B by full-length HBV genome.
Methods: Serum samples from 10 severe hepatitis B patients were collected in our hospital. Serum HBV DNAs were extracted using DNA mini Kit, and amplified by LA Taq DNA polymerase to yield full-length HBV DNA. PCR products were isolated and cloned into vector pUCm-T, then transfected into DH-5 alpha cells. Positive clones were selected and checked by digestion, and full-length HBV DNAs were sequenced.
Results: 4 cases were cloned into vector pUCm-T successfully and completed the full-length sequencing. Among them, 3 cases had a G to A mutation at nucleotide 1896 in pre-C region and 1 had a double mutation of T1762-A1764 in the core promoter region. Some amino acid changes occurred within the known CTL, B or T cell epitopes of the PrS2 and C regions.
Conclusions: This method could serve to study the relationship between HBV genome and the pathogenesis of severe hepatitis B.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Context: Anemia is a medical condition resulting from a reduction in the number of red blood cells below the reference range. It is a major public health problem, particularly among adolescents, as it can have negative effects on cognitive performance, growth and reproduction. This study aims to assess the determinants of anemia among adolescents in schools in the city of Douala.
View Article and Find Full Text PDFCMV IgG in the blood is not associated with hepatitis but correlates with poor outcomes in immunotherapy treated melanoma patients.
Cancer Immunol Immunother
January 2025
Department of Dermatology and National Center for Tumor Diseases (NCT), Medical Faculty Heidelberg, NCT Heidelberg, a partnership between DKFZ and University Hospital Heidelberg, Heidelberg University, Heidelberg, Germany.
Cytomegalovirus (CMV) infection or reactivation in immune-compromised individuals can lead to a wide range of severe complications including hepatitis. However, its relation with immune checkpoint inhibitors (ICIs) induced hepatitis (ICI-hepatitis) and tumor responses in advanced melanoma patients remains unclear. Hundred and ninety metastatic cutaneous melanoma patients (mCM) who received ICI treatment, with CMV IgG or IgM information available at baseline, were included in the study (Cohort 1).
View Article and Find Full Text PDFH19/miR-484 axis serves as a candidate biomarker correlated with autism spectrum disorder.
Int J Dev Neurosci
February 2025
Department of Psychiatry and Clinical Psychology, Chonggang General Hospital, Chongqing, China.
Background: Autism spectrum disorder (ASD) appears to be a common neurological developmental deficit disorder in pediatric patients, resulting in a tremendous burden on society.
Purpose: The article aimed to explore early diagnostic markers for ASD.
Methods: Levels of long non-coding RNA (lncRNA) H19 and microRNA-484 (miR-484) were detected using fluorescence quantitative polymerase chain reaction (PCR).
[Fatal hepatitis after pembrolizumab in combination therapy with carboplatin and pemetrexed].
Ugeskr Laeger
December 2024
Lever-, Mave- og Tarmsygdomme, Aarhus Universitetshospital.
Immunotherapy-induced hepatitis is a well-known and relatively common side effect of immune checkpoint inhibitors. It is usually mild to moderate and responds well to corticosteroids with a full recovery. However, in rare cases, severe liver injury may develop, leading to fulminant liver failure.
View Article and Find Full Text PDFSevere liver injury induced by minocycline in hepatitis B patient: a Case Report.
Front Pharmacol
December 2024
Pharmacy Department Nanjing Lishui People's Hospital, Zhongda Hospital Lishui Branch, Southeast University, Nanjing, Jiangsu Province, China.
Physical liver injury is an acute and potentially serious adverse event that may result in acute liver failure or even death. Diagnosis is often challenging. Minocycline, a semi-synthetic second-generation tetracycline, has high fat solubility and good tissue permeability.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!