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Immune System

  • Novel Vaccine Offers Hope in Fight Against HIV
    A research team may have broken the stubborn impasse that has frustrated the invention of an effective HIV vaccine, by using an approach that bypasses the usual path followed by vaccine developers. By using gene transfer technology that produces molecules that block ...More
    May 18, 2009 Posted in News
  • Chronic Infection Now Clearly Tied to Immune System Protein
    The reason deadly infections like human immunodeficiency virus (HIV) and hepatitis C never go away is because these viruses disarm the body’s defense system. Researchers at the University of Alabama at Birmingham (UAB) have discovered that a key immunity protein must ...More
    May 14, 2009 Posted in News
  • Immune Exhaustion Driven by Antigen in Chronic Viral Infection
    A main reason why viruses such as HIV or hepatitis C persist despite a vigorous initial immune response is exhaustion. The T cells, or white blood cells, fighting a chronic infection eventually wear out. Researchers at Emory Vaccine Center have demonstrated that exhaustion ...More
    May 13, 2009 Posted in News
  • Immune Response to Influenza Predicted by Mathematical Model
    Researchers at the University of Rochester have developed a mathematical model to predict immune responses to infection with influenza A viruses, including novel viruses such as the emergent 2009 influenza A (H1N1). This model examines the contributions of specific sets of ...More
    May 13, 2009 Posted in News
  • Women Have More Powerful Immune Systems Than Men
    When it comes to immunity, men may not have been dealt an equal hand. The latest study by Dr. Maya Saleh, of the Research Institute of the McGill University Health Centre and McGillUniversity, shows that women have a more powerful immune system than men. In fact, the ...More
    May 11, 2009 Posted in News
  • Scientists Discover How Smallpox May Derail Human Immune System
    University of Florida (UF) researchers have learned more about how smallpox conducts its deadly business — discoveries that may reveal as much about the human immune system as they do about one of the world's most feared pathogens.In findings to be published this week ...More
    May 11, 2009 Posted in News
  • Scientists Identify How Key Protein Keeps Chronic Infection in Check
    Why is the immune system able to fight off some viruses but not others, leading to chronic, life-threatening infections like HIV and hepatitis C? A new UCLA AIDS Institute study suggests the answer lies in a protein called interleukin-21 (IL-21), a powerful molecule ...More
    May 8, 2009 Posted in News
  • Does Flu Virus Kill by Causing a 'Cytokine Storm'?
    The H1N1 flu outbreak that began in Mexico and continues to spread around the globe may be particularly dangerous for young, otherwise healthy adults because it contains genetic components of the H5N1 avian influenza virus, which can induce a "cytokine storm," in which a ...More
    May 5, 2009 Posted in News
  • Novel Antibody Prevents Hepatitis C Virus Infection
    Taking aim at a leading cause of liver failure in the United States, a team of scientists at the Massachusetts Biologic Laboratories (MBL) of the University of Massachusetts Medical School (UMMS) has developed a human monoclonal antibody that neutralizes the hepatitis C ...More
    May 5, 2009 Posted in News
  • New Study Overturns Orthodoxy on How Macrophages Kill Bacteria
    For decades, microbiologists assumed that macrophages, immune cells that can engulf and poison bacteria and other pathogens, killed microbes by damaging their DNA. A new study from the University of Illinois disproves that.The study, published in the journal PLoS One, shows ...More
    May 4, 2009 Posted in News