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Why are some people prone to severe infections, while others handle them with less difficulty? A new research report appearing online in the Federation of the American Societies for Experimental Biology (FASEB) Journal attempts to answer this question by shedding light on the genetic differences that influence our ability to fight off bacterial infections.
"We hope that our study will contribute to facilitating the development of novel treatment strategies targeting the mediator MIF in patients with severe infection (i.e., sepsis) or any other diseases in which MIF has been shown to play an important role," says Thierry Calandra, PhD, a researcher involved in the work from the Infectious Diseases Service in the Department of Medicine at the Centre Hospitalier Universitaire Vaudois in Lausanne, Switzerland.
In the report, scientists analyzed the diversity (polymorphisms) in the genetic makeup of an immune system mediator called the macrophage migration inhibitory factor, or MIF, which plays an important role in host defenses against infection. By identifying the gene variations in people that influence the likelihood of developing deadly infections, new tools can be developed to help physicians prescribe the best treatment and approach toward conditions ranging from childhood ear infections to post-surgical recoveries. Â
Reference:Â Pascal Renner, Thierry Roger, Pierre-Yves Bochud, Tom Sprong, Fred C. G. J. Sweep, Murielle Bochud, Saul N. Faust, Elene Haralambous, Helen Betts, Anne-Laure Chanson, Marlies Knaup Reymond, Elliott Mermel, Veronique Erard, Marcel van Deuren, Robert C. Read, Michael Levin, and Thierry Calandra. A functional microsatellite of the macrophage migration inhibitory factor gene associated with meningococcal disease. FASEB J. doi: 10.1096/fj.11-195065