HOME >> MEDICINE >> NEWS
Ulcer bacteria linked to strokes

DALLAS, July 9 Potent strains of ulcer-causing bacteria may play a key role in certain kinds of stroke, researchers report in today's rapid access issue of Circulation: Journal of the American Heart Association.

For the first time, researchers have found that specific strains of Helicobacter pylori (H. pylori) were much more prevalent in the blood of patients who have suffered an atherosclerotic stroke, says lead author Antonio Pietroiusti, M.D., a professor of internal medicine at Tor Vergata University in Rome.

Some studies have linked H. pylori with inflamed artery walls and arterial lesions, including stroke caused by narrowing of the arteries due to atherosclerosis.

H. pylori causes ulcers in the stomach. In large arteries leading to the brain, the researchers report that cytotoxin-producing strains of the bacteria appear to aggravate an already risky environment. The cytotoxin-associated gene-A (CagA) makes strains of H. pylori virulent and especially damaging to arteries. Cytotoxins attack cells, causing tissue inflammation and ultimately lesions. By attacking vulnerable areas of the artery wall, they cause inflammation and swelling, further restricting blood flow and increasing the chance of stroke.

Researchers compared different strains of H. pylori in the bloodstream of 138 patients with large-vessel stroke (group A); 61 patients with cardioembolic stroke (group B); and 151 healthy volunteers. Extensive atherosclerotic changes cause large vessel strokes, says Pietroiusti. Cardioembolic strokes are caused by abrupt blockage of a cerebral artery by a clot that travels to the brain.

Prevalence of H. pylori infection among patients with large-vessel, , and normal controls was about the same. However, the presence of CagA-positive strains was significantly higher in large-vessel stroke patients than the cardioembolic stroke group 42.8 percent versus 19.7 percent. It was also higher than those of the controls 17.9 per
'"/>

Contact: Bridgette Mc Neill
bridgette.mcneill@heart.org
214-706-1135
American Heart Association
8-Jul-2002


Page: 1 2

Related medicine news :

1. Ulcer Drug Linked To Birth Defects
2. Oral bacteria may predict pregnancy outcomes
3. Study finds direct association between cardiovascular disease and periodontal bacteria
4. Substance protects resilient staph bacteria
5. Discovery of key proteins shape could lead to improved bacterial pneumonia vaccine
6. Bacteria-killing vs. bacteria-inhibiting drugs in treating infections
7. Patients undergoing weight loss surgery have high rates of H pylori bacteria
8. Outbreak of skin infections sheds light on risk factors for bacterial resistance
9. Popular chewing gum eliminates bacteria that cause bad breath
10. Antibiotic resistant bacteria frequently transmitted between intensive care patients
11. New weapon to combat resistant bacteria

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:2/21/2017)... , ... February 21, 2017 , ... Along with Valentine’s ... lifestyle and make small changes that can lead to a lifetime of heart health. ... of a cardiac emergency. , The Athletic Trainers’ Society of New Jersey ...
(Date:2/20/2017)... ... February 20, 2017 , ... MRI screening improves early ... new study from Germany published online in the journal Radiology . , ... better sensitivity than mammography and ultrasound. Currently, guidelines reserve breast MRI screening for women ...
(Date:2/20/2017)... ... February 20, 2017 , ... Daily Body Restore, "DBR" ... levels of “good” bacteria in the body, announced its Daily Body Restore® supplement ... , Daily Body Restore® is made with a unique combination of digestive enzymes ...
(Date:2/20/2017)... Jacksonville, Fla. (PRWEB) , ... February 20, 2017 , ... ... Anderson Cancer Center in Houston, Dr. Christopher Pezzi remembers the excitement of the surgeon ... you believe they pay us to do this? Don’t tell anyone, but I would ...
(Date:2/20/2017)... ... , ... Researchers at the University of Pittsburgh School of Medicine have uncovered ... predict response to a particular class of drugs, not just in patients with thyroid ... findings were published in Proceedings of the National Academy of Science. , “These results ...
Breaking Medicine News(10 mins):
(Date:2/20/2017)... 2017   Spectrum Pharmacy Products , a division ... exhibiting at the Educational Conference, February 22-25, 2017, in ... Coronado Bay Resort. Spectrum will be showcasing its new ... . The annual Educational Conference is presented by the ... Compounding Pharmacists (IACP) and the American College of Veterinary ...
(Date:2/20/2017)... -- This report analyzes the worldwide markets for Peripheral Arterial Disease (PAD) ... for the US, Canada , ... Asia-Pacific , Latin America , and ... http://www.reportlinker.com/p04707127-summary/view-report.html Annual estimates and forecasts are ... historic analysis is provided for these markets. Market data and ...
(Date:2/20/2017)... --  Orion Health ™ announced today the ... to the Amazon Web Services, Inc. (AWS) Cloud. ... records globally. "We are impressed by Orion ... on modern, scalable technology," said Steve Halliwell , ... Cloud gives healthcare companies a powerful tool to enable ...
Breaking Medicine Technology:
Cached News: