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:
TAG: Ulcer bacteria linked strokes

(Date:5/22/2015)... 22, 2015 The American College of ... in June. They will hold a webinar on the ... two-day class on Classical Chinese Medicine. , Webinar – ... Steve Given, the Dean of Clinical Education, will lead ... First Professional Doctorate program. ACTCM is currently developing this ...
(Date:5/22/2015)... May 22, 2015 Hundreds of ... behalf of individuals who allegedly experienced serious internal ... continue to move forward in the U.S. District ... Pretrial Order dated May 4, 2015, the Court ... and electronically stored information. Among other things, the ...
(Date:5/22/2015)... UK (PRWEB) May 22, 2015 ... leading treatment option for chronic obstructive pulmonary disorder ... GlaxoSmithKline plc and AstraZeneca plc as well as ... market share and position. But will market payers, ... the already well-entrenched products to completely new ones? ...
(Date:5/22/2015)... 22, 2015 Family, friends, students, colleagues, ... surgical oncologist, Dr. LaSalle D. Leffall, on Monday, May ... began after Grand Rounds in the hospital’s Tower Auditorium. ... outside the auditorium, trying to keep the secret. “I’d ... he sees me, he’ll know something is up,” she ...
(Date:5/22/2015)... (PRWEB) May 22, 2015 Memorial Day weekend ... Amica Insurance is offering some tips to help promote ... Council, there will be 383 traffic fatalities this Memorial Day ... the National Highway Traffic Safety Association: , ... the vehicle is wearing a seatbelt, whether they’re driving or ...
Breaking Medicine News(10 mins):Health News:ACTCM Announces Upcoming June Events 2Health News:Court Overseeing Federal Xarelto Lawsuits Establishes Procedures Governing Preservation of Documents, Electronically Stored Information 2Health News:Court Overseeing Federal Xarelto Lawsuits Establishes Procedures Governing Preservation of Documents, Electronically Stored Information 3Health News:Court Overseeing Federal Xarelto Lawsuits Establishes Procedures Governing Preservation of Documents, Electronically Stored Information 4Health News:Chronic Obstructive Pulmonary Disorder Therapeutics Market Discussed in In-demand FirstWord Report Published at MarketPublishers.com 2Health News:Colleagues Surprise Dr. LaSalle Leffall with 85th Birthday Celebration 2Health News:Amica Has 4 Road Safety Tips for Memorial Day Weekend 2
(Date:5/22/2015)... Taskforce representing Canada,s living victims of ... the Minister and Health Canada have put into this program ... of the thalidomide survivors, and more than 70% of them ... annual adjustments for inflation. Certain of the thalidomide ... on the severity of their disability, tax free, with inflation ...
(Date:5/22/2015)... - More than fifty years ago, Thalidomide was approved by ... mothers. Tragically, Thalidomide caused serious and permanent physical and emotional ... has been provided to survivors over the years from sources ... in 1991 and settlements from drug companies. ... provide support, we have a clear moral obligation to help ...
(Date:5/22/2015)... -- The Assistance Fund announces the addition of its ... for copay to individuals diagnosed with Melanoma. ... the Melanoma Copay Assistance Program to our portfolio of ... "With each additional program we are closer to achieving ... one is denied access to medications due to an ...
Breaking Medicine Technology:Statement from Minister Ambrose on Thalidomide 2Statement from Minister Ambrose on Thalidomide 3The Assistance Fund Adds Melanoma Assistance Program 2
Cached News: