Related Experiment Video

Updated: Oct 1, 2026

A Protocol for Analyzing Hepatitis C Virus Replication
13:04

A Protocol for Analyzing Hepatitis C Virus Replication

Published on: June 26, 2014

Hepatitis C infection in African Americans: its natural history and histological progression

Thelma E Wiley1, Jennifer Brown, Juliana Chan

  • 1Department of Medicine, College of Pharmacy, University of Illinois at Chicago, USA.

The American Journal of Gastroenterology
|April 2, 2002
PubMed

Insights

African Americans with hepatitis C virus (HCV) infection showed slower disease progression and less liver damage compared to other groups. This may be due to differences in immune response to the virus.

Area of Science:

  • Hepatology
  • Immunology
  • Infectious Diseases

Background:

  • Hepatitis C virus (HCV) infection affects millions globally, with varying clinical outcomes across different populations.
  • Understanding the natural history of HCV is crucial for effective management and treatment strategies.

Purpose of the Study:

  • To compare the clinical, virological, and histological progression of HCV infection in African Americans versus non-African Americans.
  • To identify demographic and disease-specific differences between these groups.

Main Methods:

  • A retrospective analysis of 355 patients with confirmed HCV infection and adequate liver biopsy specimens.
  • Evaluation of demographics, HCV genotype, viral load, liver enzyme levels (ALT), and histological features (fibrosis, necrosis).

Main Results:

  • African Americans were more likely to have HCV genotype 1 and presented with lower baseline ALT levels.
  • African Americans showed a trend toward less cirrhosis and significantly less piecemeal necrosis.
  • Non-African Americans exhibited higher fibrosis scores and faster progression to cirrhosis, unrelated to alcohol consumption.

Conclusions:

  • African Americans demonstrated slower histological progression of liver disease in HCV infection.
  • Lower ALT and necrosis scores in African Americans may indicate a different immunological response to HCV-infected liver cells.
Abstract

More Related Videos

An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis00:06

An Oncogenic Hepatocyte-Induced Orthotopic Mouse Model of Hepatocellular Cancer Arising in the Setting of Hepatic Inflammation and Fibrosis

Published on: September 12, 2019

Establishment of the Dual Humanized TK-NOG Mouse Model for HIV-associated Liver Pathogenesis00:10

Establishment of the Dual Humanized TK-NOG Mouse Model for HIV-associated Liver Pathogenesis

Published on: September 11, 2019

Related Concept Videos

Hepatitis01:25

Hepatitis

Hepatitis is an inflammatory condition of the liver most commonly caused by hepatotropic viruses (A–E), though non-infectious causes such as alcohol and drugs also exist.Hepatitis AHepatitis A virus (HAV) is a non-enveloped RNA virus of the Picornaviridae family. It is primarily transmitted via the fecal-oral route, typically through ingestion of contaminated food or water. After ingestion, HAV enters the bloodstream through the oropharynx or intestinal epithelium and reaches the liver. The...
Viral Hepatitis I: Introduction01:28

Viral Hepatitis I: Introduction

Viral hepatitis is an inflammatory condition of the liver caused by infection with hepatotropic viruses, most commonly hepatitis A, B, C, D, and E. Despite variations in structure and transmission, all viruses mentioned infect hepatocytes and provoke immune responses that can hinder liver function. Additionally, some non-hepatotropic viruses can also lead to hepatic inflammation.Hepatitis A VirusHepatitis A virus (HAV) is transmitted through the fecal–oral route, typically by ingestion of food...
Cirrhosis II: Pathophysiology01:24

Cirrhosis II: Pathophysiology

Cirrhosis is a progressive chronic liver injury caused by prolonged inflammation, excessive fibrotic remodeling, and impaired regeneration. Over time, repeated hepatic insults disrupt the liver’s architecture and function, leading to reduced blood flow, impaired bile drainage, and diminished metabolic capacity.Pathophysiology of cirrhosisCirrhosis arises from three main responses to chronic liver damage: inflammation, immune activation, and hepatocyte death. These processes lead to structural...
Cytomegalovirus Disease01:27

Cytomegalovirus Disease

Cytomegalovirus (CMV) disease is caused by human cytomegalovirus, a double-stranded DNA virus of the Herpesviridae family. While primary CMV infection is often asymptomatic in immunocompetent individuals, the virus can cause severe disease in neonates and immunocompromised patients. CMV is the most common cause of congenital viral infection in the United States, and a major pathogen in solid organ and hematopoietic stem cell transplant recipients.CMV is transmitted via bodily fluids, sexual...
Cirrhosis I: Introduction01:23

Cirrhosis I: Introduction

Cirrhosis is a chronic, irreversible liver disease characterized by the widespread replacement of healthy liver tissue with fibrotic scar tissue and the formation of regenerative nodules.Etiology of cirrhosisCirrhosis results from sustained liver injury that triggers progressive fibrosis and structural remodeling. The underlying causes are diverse, encompassing common and less frequent clinical conditions. Regardless of the origin, all causes lead to chronic inflammation, hepatocyte loss, and...
Amebiasis01:28

Amebiasis

Entamoeba histolytica, a protozoan parasite, is responsible for intestinal and extraintestinal amebiasis. Though a significant proportion of infections remain asymptomatic, approximately 50 million individuals annually are estimated to present with clinical disease, resulting in up to 100,000 deaths globally. The disease burden is disproportionately high in regions with lower socioeconomic status, such as parts of India, Africa, Mexico, and Latin America.Etiology and TransmissionThe infective...