Oral bacteria not only affects dental health will increase the risk of stroke

In a study of acute stroke patients were admitted to hospital, the researchers have a more in-depth understanding of the relationship between specific types of oral bacteria and stroke between. Researchers from the University of Louisville in Osaka, Japan and the United States jointly conducted the study, relevant results published in the journal Nature Publishing Group's scientific reports.

In this study, the researchers found that patients with intracerebral hemorrhage occurs in the presence of a specific type of bacterium Streptococcus mutans --CNM positive 26% of the patients saliva. In other types of stroke patients, only 6% of patients able to detect the presence of the bacteria.

Stroke, including ischemic stroke (caused by blocked blood vessels of the brain) and hemorrhagic stroke (caused by ruptured blood vessels of the brain).

The researchers also showed that MRI detected the presence of micro-cerebral hemorrhage patients were analyzed, these patients may develop dementia presence of intracerebral hemorrhage may also found that saliva contains positive patient CNM Streptococcus mutans compared to the absence of the the presence of a greater number of patients with cerebral hemorrhage micro bacteria.

The authors hypothesized, CNM positive Streptococcus mutans may be combined with the vessel, and as aging occurs and high blood pressure, etc., and gradually become fragile blood vessels, which will promote brain artery rupture, leading to small-scale or large-scale bleeding .

One of the authors said the study shows that oral health is very important for brain health, people need to look at their teeth, not only for dental health but also to the brain and heart health. This study and other related work of the research team suggests that oral bacteria may be involved in several types of stroke.

Some studies have found that there is a close link between gum disease and heart disease. An article published in 2013 also had to explain the oral bacteria that cause gum disease is how to aggravate rheumatoid arthritis.

The researchers pointed out that the public has about 10% of the population carry the CNM positive Streptococcus mutans, the bacteria can also lead to dental caries. They are currently still looking for other brain may affect the health of oral bacteria.