Featured Research

from universities, journals, and other organizations

Women have higher rate of spontaneous clearance of Hepatitis C virus

Date:
September 12, 2013
Source:
Wiley
Summary:
A study of patients infected with acute Hepatitis C virus (HCV) infection found that women had higher rates of spontaneous viral clearance — undetectable levels of the virus without initiating drug therapy.

A study of patients infected with acute hepatitis C virus (HCV) infection found that women had higher rates of spontaneous viral clearance -- undetectable levels of the virus without initiating drug therapy. Findings published in Hepatology, a journal of the American Association for the Study of Liver Diseases, indicate that the gene IL28B (rs12979860) and HCV genotype 1 are also independent predictors of spontaneous HCV clearance.

In 2011, there were 1,229 cases of acute HCV reported to the Centers for Disease Control and Infection (CDC), which represents a 44% increase over 2010. Medical evidence indicates that 25% of those with acute HCV spontaneously clear their infection. Previous prospective studies link female sex, immune responses, neutralizing antibodies and genetics to viral clearance.

"Knowledge of acute HCV clearance is limited given that patients are typically asymptomatic during the initial stages of infection and at-risk populations, such as people who inject drugs, are often marginalized," explains lead author Dr. Jason Grebely at The Kirby Institute, University of New South Wales in Australia. "Our research aims to advance understanding of time to and predictors of HCV clearance to improve early therapeutic intervention options."

Researchers used data from the InC3 Study -- a collaboration of nine prospective studies from Australia, Canada, the Netherlands, and the U.S. funded by the National Institutes of Health and led by Professor Kimberly Page from the University of California San Francisco -- which included participants with HCV and human immunodeficiency virus (HIV) who were recruited between 1985 and 2010. The present study included 632 individuals diagnosed with acute HCV with 35% of the group being female and 82% Caucasian. Roughly 96% of participants had injected drugs, 47% were infected with HCV genotype 1 and 5% were co-infected with HIV.

Results show that 173 of the 632 participants had spontaneously cleared the virus during follow-up. At one year post-infection, 25% had HCV clearance. The average time to clearance among those who cleared HCV was 16.5 weeks, with 34%, 67% and 83% demonstrating clearance at 3, 6 and 12 months, respectively.

"Our findings indicate that females, those with the IL28B gene, and those with HCV genotype 1 are independent predictors of spontaneous clearance of acute HCV," concludes Prof. Kimberly Page. "Further research is necessary to understand the effect of sex in controlling HCV infection."


Story Source:

The above story is based on materials provided by Wiley. Note: Materials may be edited for content and length.


Journal Reference:

  1. Jason Grebely, Kimberly Page, Rachel Sacks-Davis, Maarten Schim van der Loeff, Thomas M. Rice, Julie Bruneau, Meghan D. Morris, Behzad Hajarizadeh, Janaki Amin, Andrea L. Cox, Arthur Y. Kim, Barbara H. McGovern, Janke Schinkel, Jacob George, Naglaa H. Shoukry, Georg M. Lauer, Lisa Maher, Andrew R. Lloyd, Margaret Hellard, Gregory J. Dore, Maria Prins. The effects of female sex, viral genotype, andIL28Bgenotype on spontaneous clearance of acute hepatitis C Virus infection. Hepatology, 2013; DOI: 10.1002/hep.26639

Cite This Page:

Wiley. "Women have higher rate of spontaneous clearance of Hepatitis C virus." ScienceDaily. ScienceDaily, 12 September 2013. <www.sciencedaily.com/releases/2013/09/130912112812.htm>.
Wiley. (2013, September 12). Women have higher rate of spontaneous clearance of Hepatitis C virus. ScienceDaily. Retrieved September 17, 2014 from www.sciencedaily.com/releases/2013/09/130912112812.htm
Wiley. "Women have higher rate of spontaneous clearance of Hepatitis C virus." ScienceDaily. www.sciencedaily.com/releases/2013/09/130912112812.htm (accessed September 17, 2014).

Share This



More Health & Medicine News

Wednesday, September 17, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

President To Send 3,000 Military Personnel To Fight Ebola

President To Send 3,000 Military Personnel To Fight Ebola

Newsy (Sep. 16, 2014) President Obama is expected to send 3,000 troops to West Africa as part of the effort to contain Ebola's spread. Video provided by Newsy
Powered by NewsLook.com
Obama Orders Military Response to Ebola

Obama Orders Military Response to Ebola

AP (Sep. 16, 2014) Calling the Ebola outbreak in West Africa a potential threat to global security, President Barack Obama is ordering 3,000 U.S. military personnel to the stricken region amid worries that the outbreak is spiraling out of control. (Sept. 16) Video provided by AP
Powered by NewsLook.com
UN: 20,000 Could Be Infected With Ebola by Year End

UN: 20,000 Could Be Infected With Ebola by Year End

AFP (Sep. 16, 2014) Nearly $1.0 billion dollars is needed to fight the Ebola outbreak raging in west Africa, the United Nations say, warning that 20,000 could be infected by year end. Duration: 00:40 Video provided by AFP
Powered by NewsLook.com
Obama: Ebola Outbreak Threat to Global Security

Obama: Ebola Outbreak Threat to Global Security

AP (Sep. 16, 2014) President Obama is ordering U.S. military personnel to West Africa to deal with the Ebola outbreak, which is he calls a potential threat to global security. (Sept. 16) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

    Environment News

      Technology News



      Save/Print:
      Share:

      Free Subscriptions


      Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

      Get Social & Mobile


      Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

      Have Feedback?


      Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
      Mobile: iPhone Android Web
      Follow: Facebook Twitter Google+
      Subscribe: RSS Feeds Email Newsletters
      Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins