Hepatitis G virus exposure in dialysis patients

Ali Eslamifar1, Rasool Hamkar, Amitis Ramezani

  • 1Clinical Research Department, Pasteur Institute of Iran, No 69, Pasteur Ave., Tehran, 13164, Iran.

Insights

Hepatitis G virus (HGV) exposure was low in Iranian dialysis patients, with only 3.89% of hemodialysis patients testing positive for anti-HGV envelope protein E2. HGV RNA was not detected, suggesting viral clearance in exposed individuals.

Area of Science:

  • Virology
  • Infectious Diseases
  • Nephrology

Background:

  • Hepatitis G virus (HGV) is a blood-borne pathogen primarily transmitted parenterally.
  • Dialysis patients are a potential risk group for blood-borne virus exposure.
  • Assessing HGV prevalence in this population is crucial for understanding transmission dynamics.

Purpose of the Study:

  • To determine the frequency of Hepatitis G virus (HGV) exposure among patients undergoing hemodialysis (HD) and continuous ambulatory peritoneal dialysis (CAPD) in Iran.
  • To investigate potential risk factors associated with HGV exposure in this cohort.

Main Methods:

  • A cohort of 77 HD and 13 CAPD patients in Tehran, Iran, were studied.
  • HGV exposure was indicated by the presence of anti-HGV envelope protein E2 (anti-E2) detected via ELISA.
  • HGV RNA was assessed using RT-PCR in anti-E2 positive patients; screening for HBV and HCV markers was also performed.

Main Results:

  • Anti-HGV envelope protein E2 (anti-E2) was detected in 3.89% of hemodialysis patients; no CAPD patients tested positive.
  • Hepatitis G virus (HGV) RNA was not detected in any patient, indicating viral clearance.
  • No co-infection with Hepatitis C virus (HCV) or Hepatitis B virus (HBV) was observed in anti-E2 positive patients.

Conclusions:

  • The rate of Hepatitis G virus (HGV) exposure is low in Iranian dialysis patients.
  • Anti-HGV envelope protein E2 (anti-E2) seropositivity correlated with HGV RNA clearance.
  • HGV exposure showed no significant association with age, sex, blood transfusion history, or dialysis duration.
Abstract

Related Concept Videos

Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...
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...
Hemodialysis I: Introduction01:25

Hemodialysis I: Introduction

Hemodialysis (HD) is a medical treatment that artificially removes waste products, excess fluids, and toxins from the blood when the kidneys are no longer able to perform these functions effectively. In this process, blood is filtered through a semipermeable membrane, allowing for the selective removal of waste while preserving necessary components like blood cells and proteins. Hemodialysis is typically performed in patients with end-stage renal disease (ESRD) or severe kidney...
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...
Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis01:30

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
Dialysis01:27

Dialysis

Renal failure occurs when the kidneys lose their ability to filter waste products from the blood effectively. It can be classified into two types: acute renal failure (ARF) and chronic renal failure (CRF).
Acute kidney injury develops suddenly and can be caused by pre-renal causes (e.g., hypovolemia, shock), intrinsic renal causes (e.g., acute tubular necrosis), or post-renal causes (e.g., urinary obstruction). In contrast, chronic renal failure progresses gradually over time and is often...