Associations of chronic hepatitis C with metabolic and cardiac outcomes

Z M Younossi1, M Stepanova, F Nader

  • 1Center for Liver Diseases, Department of Medicine, Inova Fairfax Hospital, Falls Church, VA, USA. zobair.younossi@inova.org

Insights

Chronic hepatitis C virus infection is linked to higher risks of insulin resistance, type 2 diabetes, and hypertension. This condition is also independently associated with congestive heart failure.

Area of Science:

  • Hepatology
  • Cardiology
  • Metabolic Diseases

Background:

  • Chronic hepatitis C virus (CH-C) infection is recognized as a risk factor for metabolic disturbances like insulin resistance and type 2 diabetes.
  • CH-C may also contribute to an increased risk of developing cardiovascular diseases.

Purpose of the Study:

  • To investigate the association between CH-C infection and cardiovascular disease risk factors.
  • Utilizing data from the US population to assess these associations.

Main Methods:

  • Analysis of data from the National Health and Nutrition Examination Surveys (NHANES) spanning 1999-2010.
  • Inclusion of 19,741 eligible participants, with 173 identified as having CH-C.

Main Results:

  • CH-C patients exhibited higher rates of insulin resistance (44.1%), hypertension (40.1%), and a history of smoking (76.2%) compared to controls.
  • Multivariate analysis confirmed CH-C as an independent risk factor for insulin resistance (OR=2.06), type 2 diabetes (OR=2.31), and hypertension (OR=2.06).
  • CH-C was independently associated with congestive heart failure, but not with ischemic heart disease or stroke.

Conclusions:

  • Chronic hepatitis C virus infection is independently associated with key metabolic conditions, including insulin resistance, type 2 diabetes mellitus, and hypertension.
  • The study also found an independent association between CH-C and congestive heart failure.
Abstract

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...
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...
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...
Coronary Artery Disease I: Introduction01:30

Coronary Artery Disease I: Introduction

Coronary Artery Disease (CAD): An Overview with Scientific InsightsCoronary Artery Disease (CAD), often referred to as C-A-D, is a prevalent blood vessel disorder classified under the broader category of atherosclerosis. Atherosclerosis is a pathological process characterized by the hardening and narrowing of arteries due to the accumulation of atherosclerotic plaques. These plaques are composed of cholesterol, fatty substances, inflammatory cells, calcium, and fibrin, reducing blood flow to...
Chronic Kidney Disease II: Clinical Manifestations01:24

Chronic Kidney Disease II: Clinical Manifestations

Chronic Kidney Disease (CKD) progressively impairs multiple body systems due to the accumulation of uremic toxins, which disrupt cellular functions across various organs.Neurologic symptomsNeurologic symptoms often arise early in CKD, as uremic toxin buildup drives changes in cognitive and motor functions. Patients frequently experience fatigue, headache, confusion, difficulty concentrating, and, in severe cases, seizures. Peripheral neuropathy commonly manifests as burning sensations in the...
Chronic Pancreatitis II: Pathophysiology01:21

Chronic Pancreatitis II: Pathophysiology

Chronic pancreatitis is a progressive and irreversible inflammation of the pancreas, most often caused by long-term alcohol abuse, but it can also be related to ductal obstruction, smoking, or genetic factors.Chronic pancreatitis occurs when the pancreas is repeatedly exposed to harmful agents like alcohol, smoking, ductal obstruction, or genetic predisposition. These factors lead to the release of toxic metabolites and inflammatory cytokines, sustaining chronic inflammation in the pancreatic...