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Dental Plaque May Raise Heart Risk in Black Men

October 6, 2009.  Neglecting oral hygene could place black males at increased risk for heart problems a new study reveals.

Researchers at the Indiana University School of Dentistry studied women and men who were asked to neglect their oral hygiene as part of the study.  The researchers were seeking to determine whether there would be equal buildup of dental plaque caused a change in total white blood cell count, a known risk factor for heart problems.

They found that the accumulation of dental plaque accumulation in black males was associated with a significant increase in the activity of white blood cells called neutrophils, an important part of the immune system, the researchers noted.  An elevated white blood cell count is one of the major risks for heart attack, previous research has found.

Medical experts noted that when a bacterial infection occurs anywhere in the body, billions of neutrophils are produced in the bone marrow to defend against the intruder.  The researchers observed that with poor dental hygiene, white blood cell activity increased in black men but not black women or whites of either sex.  The findings they note suggest both gender and racial differences in the inflammatory response to dental plaque. 

None of the study participants had periodontal (gum) disease.  the study authors explained.  The study was published in the August issue of the Journal of Dental Research.

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