Tuesday, February 3, 2009

Your Mouth and Heart Disease

ScienceDaily (Dec. 7, 2008) — Individuals 
reporting a history of periodontal disease 
were more likely to have increased levels of 
inflammation, a risk factor for heart 
disease, compared to those who reported no 
history of periodontal disease, according to 
an American Journal of Cardiology report 
available online. 
 
Led by investigators from Columbia University 
Medical Center and NewYork-Presbyterian 
Hospital, the findings suggest persons with 
increased levels of inflammatory markers 
associated with a higher risk of 
cardiovascular disease might be identified by 
asking about oral health history. This group 
might not be detected by traditional 
cardiovascular risk screening. 
 
Inflammation has been associated with 
cardiovascular disease and has been suggested 
to be a potential link between periodontal 
disease and cardiovascular disease. To 
examine whether oral health history and 
inflammatory markers associated with 
cardiovascular disease were linked, the 
investigators followed participants in the 
National Heart, Lung and Blood Institute 
(NHLBI) Family Intervention Trial for Heart 
Health (F.I.T. Heart), an ongoing national 
trial led by principal investigator Lori 
Mosca, M.D., M.P.H., Ph.D., professor of 
medicine at Columbia University College of 
Physicians and Surgeons and director of 
preventive cardiology at NewYork-Presbyterian 
Hospital/Columbia University Medical Center. 
 
The NHLBI Family Intervention Trial for Heart 
Health aims to study family members of 
patients hospitalized with heart disease 
because they may be at increased risk 
themselves due to shared genetic and/or 
lifestyle factors. Dr. Mosca and her research 
team recruited family members or co-habitants 
of patients hospitalized for such cardiac 
events as a heart attack or narrowed arteries 
that required bypass surgery or an 
angioplasty procedure. Previous research has 
shown that family members of cardiovascular 
disease patients may be at increased risk for 
the disease due to the genes and lifestyle 
habits they share. 
 
In this study, 421 individuals who were blood 
related to and/or living with a person 
recently hospitalized due to cardiovascular 
disease were screened for traditional 
cardiovascular risk factors (such as elevated 
blood pressure and abnormal cholesterol 
levels), inflammatory markers associated with 
disease risk (high-sensitivity c-reactive 
protein (hsCRP) and lipoprotein-associated 
phospholipase A2 (Lp-PLA2)). They were also 
asked standardized questions about their oral 
health status, including whether they had 
ever been diagnosed with periodontal (gum) 
disease, whether they had ever been treated 
for periodontal disease, whether they used 
partial or complete removable dentures, and 
the date of their last teeth cleaning. The 
oral health history was then correlated with 
standard markers of inflammation. 
 
Results found that among participants who did 
not have traditional cardiovascular disease 
risk factors (such as high blood pressure, 
high cholesterol, and overweight/obese 
status), almost one in four were found to 
have a personal history of periodontal 
disease and higher levels of Lp-PLA2, an 
inflammatory marker which has been found 
present in inflamed rupture prone plaque in 
heart arteries/valves. 
 
It is important to note that it is not 
possible to determine from this study that 
poor oral health causes cardiovascular 
disease risk or that any therapy based on 
oral health status would be effective in 
preventing cardiovascular disease. However, 
Dr. Mosca says, "Our finding is novel because 
it suggests the dentist and oral health exam 
may be the latest weapon in identifying 
persons at risk of cardiovascular disease, 
our nation's number one killer." 
 
"Many people don't realize how oral health is 
often a predictor of one's overall health," 
says co-author John T. Grbic, DMD, MS, MMSc, 
professor of clinical dental medicine at the 
Columbia University College of Dental 
Medicine. "Symptoms for many life-threatening 
illnesses, such as diabetes and heart 
disease, first appear in the mouth. For this 
reason, it's vitally important for people to 
have routine dental check-ups and have an 
ongoing dialogue with their dentist about 
their oral health. Patients may also benefit 
from seeing dentists affiliated with an 
academic medical center, where they are 
tapped into deep referral networks to 
appropriate clinicians." 
 
 

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