Navigation Links
Cranberry juice creates energy barrier that keeps bacteria away from cells, study shows
Date:7/21/2008

WORCESTER, Mass. For generations, people have consumed cranberry juice, convinced of its power to ward off urinary tract infections, though the exact mechanism of its action has not been well understood. A new study by researchers at Worcester Polytechnic Institute (WPI) reveals that the juice changes the thermodynamic properties of bacteria in the urinary tract, creating an energy barrier that prevents the microorganisms from getting close enough to latch onto cells and initiate an infection.

The study, published in the journal Colloids and Surfaces: B, was conducted by Terri Camesano, associate professor of chemical engineering at WPI, and a team of graduate students, including PhD candidate Yatao Liu. They exposed two varieties of E. coli bacteria, one with hair-like projections known as fimbriae and one without, to different concentrations of cranberry juice. Fimbriae are present on a number of virulent bacteria, including those that cause urinary tract infections, and are believed to be used by bacteria to form strong bonds with cells.

For the fimbriaed bacteria, they found that even at low concentrations, cranberry juice altered two properties that serve as indicators of the ability of bacteria to attach to cells. The first factor is called Gibbs free energy of attachment, which is a measure of the amount of energy that must be expended before a bacterium can attach to a cell. Without cranberry juice, this value was a negative number, indicating that energy would be released and attachment was highly likely. With cranberry juice the number was positive and it grew steadily as the concentration of juice increased, making attachment to urinary tract cells increasingly unlikely.

Surface free energy also rose, suggesting that the presence of cranberry juice creates an energy barrier that repels the bacteria. The researchers also placed the bacteria and urinary tract cells together in solution. Without cranberry juice, the fi
'/>"/>

Contact: Michael Dorsey
mwdorsey@wpi.edu
508-831-5609
Worcester Polytechnic Institute
Source:Eurekalert

Page: 1 2

Related medicine news :

1. Cranberry Power: This American Native Fruit Doesnt Have to be Exotic to be Super
2. MSA Cranberry Plant Named One of Safest in Country
3. Dr. Nancy Minshew, Autism Researcher, to Speak at Regional Learning Alliance in Cranberry Township
4. Highmark Caring Place to Expand Services to New Facility in Cranberry Area
5. Cranberry Sauce May Be Healthy Treat
6. Cranberry Could Juice Up Ovarian Cancer Treatment
7. Nestle Juicy Juice Kicks Off Summer Promoting Nutritious, Active Lifestyle Choices Among Latino Children, Families
8. AVP Crocs Tour Announces Season-Long Contract With Naked Juice
9. Kagomes Yellow Mango Orchard Blended Juice Named One of Americas Healthiest Buys
10. Reported Health Benefits of Tart Cherry Boosts Juice Distribution in Southern U.S.
11. Fruit Juice May Be Healthy for Kids: Study
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/18/2014)... San Diego, Calif. (April 18, 2014) ― A new ... analyzing weekly patterns in health-related Google searches reveals ... public health strategies. , Investigators from San ... University, and the Monday Campaigns, analyzed "healthy" Google searches ... health-related, e.g., "healthy diet") originating in the U.S. from ...
(Date:4/17/2014)... The presence of chronic inflammation in benign ... prostate cancer, and this association was found even ... according to a study published in Cancer ... the American Association for Cancer Research. , An ... participants of the placebo arm of the Prostate ...
(Date:4/17/2014)... Scientists have identified new pain relief targets that ... pain. BBSRC-funded researchers at King,s College London made ... nerves in the periphery of the body. , ... and identifying mechanisms underlying pain generation and our ... related side effects." , One potential side effect ...
(Date:4/17/2014)... issue of Experimental Biology and Medicine ... Gaskins and Paul Kenis in the Institute of ... University of Illinois Urbana-Champaign describe their recent work ... a variety of cell functions including energy metabolism, ... roles in regulating normal cellular behavior, redox status ...
(Date:4/17/2014)... in the April issue of Immunity , Kevin ... Medical Research, says it,s time to take a fresh ... sepsis, which kills millions worldwide every year, including ... released into the bloodstream to fight an injury or ... for maintaining good health without inflammation, wounds and ...
Breaking Medicine News(10 mins):Health News:New research shows people are thinking about their health early in the week 2Health News:Chronic inflammation may be linked to aggressive prostate cancer 2Health News:Chronic inflammation may be linked to aggressive prostate cancer 3Health News:New pain relief targets discovered 2Health News:Live cell imaging reveals distinct alterations of subcellular glutathione potentials 2Health News:Feinstein Institute researcher publishes new perspective on sepsis 2
... IDXX ), announced today that its Board of ... additional four million,shares of its common stock under its ... open market or in negotiated transactions.,These shares are in ... 2007, under a previous Board authorization. The timing and,amount ...
... Consumer,Healthcare, a division of Wyeth (NYSE: WYE ... named Executive Vice President, Global Research and,Development (R&D), ... the consumer division,s global R&D organization. In her ... R&D efforts to,effectively bring new products to market ...
... Researchers find chronic worry impairs immune response to cancer-causing ... levels of daily stress could explain why some women ... cervical cancer, a new study suggests. , Scientists ... women, all diagnosed with cervical dysplasia (precancerous cervical lesions), ...
... Precious Medicare Dollars on Trial Lawyers and,Focus on Needy ... Blunt (Mo.) today praised President Bush,s proposal that would ... is clear that without substantial reforms, Medicare will not ... The legislation put,forth by the president is the needed ...
... million in bonuses and incentives, ADA, Mich., Feb. ... $1.072 billion, the fifth consecutive year in which the,company ... from the previous year,s sales of $1.12 billion, which ... affected minimally by actions the company took to,terminate the ...
... media outreach for TRIA, the first hair removal ... to enter U.S. home-based beauty device market, NEW ... Rpr Marketing Communications as its U.S. agency of record ... U.S. home-based beauty,device market., SpectraGenics, Inc. is a ...
Cached Medicine News:Health News:Wyeth Consumer Healthcare Names New Head of Global R&D 2Health News:Daily Stress May Raise Women's Risk of Cervical Cancer 2Health News:Daily Stress May Raise Women's Risk of Cervical Cancer 3Health News:Blunt Praises President's Plan to Save Medicare 2Health News:Quixtar Announces Fifth Consecutive Year of Billion-Dollar Sales 2Health News:Spectragenics Names Rpr Marketing Communications Agency of Record 2
(Date:1/15/2014)... , Jan. 15, 2014 Most osteoporosis patients want ... a recent online survey* sponsored by Mission Pharmacal Company. ... National Osteoporosis Foundation online support community, revealed that 74 ... that comes in a form other than a pill ...
(Date:1/15/2014)... 2014  Novation, the leading health care supply chain expertise, ... reseller (VAR) national contracts that expand its portfolio to ... lower costs. These include manufacturer product and service agreements, ... and ongoing IT consulting support. New ...
(Date:1/15/2014)... , Jan. 15, 2014  Humberto C. Antunes,  Galderma  ... Award" from the Journal of Drugs in Dermatology ... Clinical Conference (ODAC). The event is January 17-20, 2014, at the ... . The ODAC is a ...
Breaking Medicine Technology:Mission Pharmacal Conducts Online Survey of Osteoporosis Patients 2Mission Pharmacal Conducts Online Survey of Osteoporosis Patients 3New Novation Information Technology VAR Contracts Offer Significant Savings to Hospitals 2Galderma's global leader honored with a "Lifetime in Dermatology Achievement Award" by Journal of Drugs in Dermatology 2Galderma's global leader honored with a "Lifetime in Dermatology Achievement Award" by Journal of Drugs in Dermatology 3Galderma's global leader honored with a "Lifetime in Dermatology Achievement Award" by Journal of Drugs in Dermatology 4
... , FRIMLEY, England, December 8 , ... Treatment Effectiveness,in the Trial, in Patients With Newly-Diagnosed Disease(1) , ... the Disease on nilotinib (300mg Twice-Daily and 400mg Twice-Daily) Than on,imatinib 400mg ... Only a Small Number of Patients,Discontinued Due to Adverse Events(1) , ...
... ... , ... - Will Use BrainTrack,s College Campus Data to Enhance Elsevier Evolve,Website Registrations ... technical and,medical information products and services, and BrainTrack,( http://www.braintrack.com ), the widely referenced ...
Cached Medicine Technology:Novartis Tasigna(R) (nilotinib) Trial Shows Superior Results to Glivec(R) (imatinib) in Newly Diagnosed, Chronic Phase Chronic Myeloid Leukaemia 2Novartis Tasigna(R) (nilotinib) Trial Shows Superior Results to Glivec(R) (imatinib) in Newly Diagnosed, Chronic Phase Chronic Myeloid Leukaemia 3Novartis Tasigna(R) (nilotinib) Trial Shows Superior Results to Glivec(R) (imatinib) in Newly Diagnosed, Chronic Phase Chronic Myeloid Leukaemia 4Novartis Tasigna(R) (nilotinib) Trial Shows Superior Results to Glivec(R) (imatinib) in Newly Diagnosed, Chronic Phase Chronic Myeloid Leukaemia 5Novartis Tasigna(R) (nilotinib) Trial Shows Superior Results to Glivec(R) (imatinib) in Newly Diagnosed, Chronic Phase Chronic Myeloid Leukaemia 6Elsevier Selects BrainTrack Directory as Supplier of College Data 2Elsevier Selects BrainTrack Directory as Supplier of College Data 3Elsevier Selects BrainTrack Directory as Supplier of College Data 4
Microforceps : Eckardt End & Side Gripping Forceps...
Blunt tipped forceps wlth a small grasping platform on each tip. For grasping fine membranes or grasping membranes adherent to the retinal surface....
Microforceps: Spaid Pic Forceps...
Blunt tipped forceps with small, slightly pointed grasping platforms on each tip. For general purpose (fine) membrane grasping and grasping membranes adherent to the retlnal surface....
Medicine Products: