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A New Hope for Hepatitis C Infection

[additional-authors]
March 29, 2013

Hepatitis C is a viral infection that is usually spread through contact with infected blood. Prior to 1992, when testing of donated blood and organs became commonplace, many people were infected through blood transfusion and organ transplants. Now the most common method of infection is the sharing of needles or other equipment for injecting drugs. About 3.2 million people are estimated to have chronic hepatitis C infection in the U.S. Over decades, chronic infection can lead to liver failure and liver cancer. Hepatitis C is the leading indication for liver transplantation in the U.S. There is currently no vaccine.

Current medications for hepatitis C have some serious side effects and are sometimes only effective transiently, because the virus can develop resistance to the anti-viral medications. Current medications work by blocking the function of one of the virus’s components, so mutations in the virus can alter that component making the medicine ineffective.

A novel family of medicines has focused on targeting a part of the healthy liver cell that the virus uses to replicate. A specific kind of molecule called microRNA which is present in normal liver cells is required to bind to part of the hepatitis C for infection and viral replication to occur. This new family of medicines, called microRNA inhibitors, bind microRNA and prevent them from binding to hepatitis C.

” target=”_blank”>A new drug shows promise of hepatitis C cure (Booster Shots, LA Times’ health blog)
” target=”_blank”>Treatment of HCV Infection by Targeting MicroRNA (NEJM article)
” target=”_blank”>Hepatitis C Information for the Public (Centers for Disease Control and Prevention)

Important legal mumbo jumbo:
Anything you read on the web should be used to supplement, not replace, your doctor’s advice.  Anything that I write is no exception.  I’m a doctor, but I’m not your doctor.

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