Navigation Links
Study Explains How Cranberries Prevent Urinary Infections
Date:7/31/2008

Juice changes properties of bacteria to form barrier against illness

THURSDAY, July 31 (HealthDay News) -- Researchers at Worcester Polytechnic Institute say that have solved the mystery of how cranberry juice prevents urinary tract infections.

Their study, published in the current issue of Colloids and Surfaces: B, shows that the juice changes the thermodynamic properties of bacteria in the urinary tract to form an energy barrier that prevents infections from developing.

The research team found that when bacteria with hair-like projections known as fimbriae, which is present on virulent bacteria that cause urinary tract infections, is exposed to even low concentrations of cranberry juice that energy levels increased to levels that made it difficult for the bacteria attach to a cell.

When the bacteria and urinary tract cells were placed in a solution, fewer and fewer attachments were observed as the concentrations of cranberry juice were added to the mix.

Cranberry juice did not appear to affect bacteria without fimbriae, which suggests something in the juice may directly change the molecular structure of the fimbriae themselves.

"Our results show that, at least for urinary tract infections, cranberry juice targets the right bacteria -- those that cause disease -- but has no effect on non-pathogenic organisms, suggesting that cranberry juice will not disrupt bacteria that are part of the normal flora in the gut," Terri Camesano, an associate professor of chemical engineering at WPI, said in a university news release. "We have also shown that this effect occurs at concentrations of cranberry juice that are comparable to levels we would expect to find in the urinary tract."

Camesano said that unpublished work also shows cranberry juice has potent effects on disease-causing bacteria, but that the effect is temporary. "This suggests that to realize the antibacterial benefits of cranberry, one must consume cranberry juice regularly, perhaps daily," she said.

Other work her lab did shows that regular cranberry juice cocktail and sugar-free cranberry juice both work effectively to prevent urinary tract infections.

More information

The U.S. National Library of Medicine has more about urinary tract infections.



-- Kevin McKeever



SOURCE: Worcester Polytechnic Institute, news release, July 21, 2008


'/>"/>
Copyright©2008 ScoutNews,LLC.
All rights reserved

Related medicine news :

1. UNC study: Common vaginal infection may increase risk of HIV infection
2. Communication gap exists between seniors and surgeons, study finds
3. Liver damage in hepatitis C patients could be treated with warfarin, says study
4. On-X Life Technologies Significantly Reduces Study Management Costs with TEMPO from Clinipace
5. J.D. Power and Associates Study Ranks Kaiser Permanente Highest in Member Satisfaction in South Atlantic Region
6. Cocaine addiction linked to voluntary drug use and cellular memory, UCSF study shows
7. Study Finds Spice-Rich Marinades Can Reduce Harmful Compounds When Grilling
8. New study shows calcium significantly improves childrens bone health
9. Searching for shut eye: Penn study identifies possible sleep gene
10. Bariatric patients have 65% lower chance of complications at top hospitals: HealthGrades study
11. New study finds healthy children of Alzheimer patients show early brain changes
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:12/2/2016)... ... 2016 , ... Center for Autism and Related Disorders (CARD) Portland today announced ... disorder (ASD) and other developmental disabilities. The group, which is being launched with the ... the opportunity to share stories and advice, seek help, and continue their education on ...
(Date:12/2/2016)... ... December 02, 2016 , ... With the number of pain management programs available ... must find the one that works for them. When an inventor from Suisun City, ... worked and decided to share it with others. , He developed a prototype for ...
(Date:12/2/2016)... NY (PRWEB) , ... December 02, 2016 , ... More ... school and while 84 percent of parents report speaking with their child about sex ... and sexually transmitted diseases. , Mediaplanet is proud to announce the launch of its ...
(Date:12/2/2016)... Hawaii (PRWEB) , ... December 02, 2016 , ... ... 2016 at the Hyatt Regency Waikiki Beach Resort and Spa in Honolulu, offering ... in the field of pain management. , The demand for supplemental training ...
(Date:12/2/2016)... ... December 02, 2016 , ... Rijuven Corp launches rejiva ( http://www.rejiva.com ), a ... No other wearable health technology on the market can deliver all that rejiva can. ... meaningful insights about their health than the usual heart rate and steps taken”, adds ...
Breaking Medicine News(10 mins):
(Date:12/2/2016)... , Dec 2, 2016 Research and ... Size, Share, Development, Growth and Demand Forecast to 2022" report to ... , , ... of $6 billion in 2015, and it is expected to grow at ... segment is expected to witness faster growth during the forecast period, a ...
(Date:12/2/2016)... CORDOBA, Spain , Dec. 2, 2016 ... additional natural sources apart from those derived from C. ... Córdoba, the Universita` di Napoli Federico II , ... have created the first comprehensive, critical, integrated and unified ... The article focuses on the remarkable chemical ...
(Date:12/2/2016)... Dec. 2, 2016  Maxor National Pharmacy Services, LLC ("Maxor"), ... Specialties, Inc. ("PSI").  The combination of Texas ... -based PSI bring together both company,s clinical expertise and ... payers an industry-leading specialty pharmacy. About Maxor ... , , ...
Breaking Medicine Technology: