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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tao, Yuanyuan Pinzón-Arango, Paola A. Howell, Amy B. Camesano, Terri A. |
| Description | Country affiliation: United States Author Affiliation: Tao Y ( Department of Chemical Engineering, Worcester Polytechnic Institute, Worcester, Massachusetts 01609, USA.) |
| Abstract | Cranberry juice cocktail (CJC) has been shown to inhibit the formation of biofilm by uropathogenic Escherichia coli. In order to investigate whether the anti-adhesive components could reach the urinary tract after oral consumption of CJC, a volunteer was given 16 oz of either water or CJC. Urine samples were collected at 0, 2, 4, 6, and 8 hours after consumption of a single dose. The ability of compounds in the urine to influence bacterial adhesion was tested for six clinical uropathogenic E. coli strains, including four P-fimbriated strains (B37, CFT073, BF1023, and J96) and two strains not expressing P-fimbriae but exhibiting mannose-resistant hemagglutination (B73 and B78). A non-fimbriated strain, HB101, was used as a control. Atomic force microscopy (AFM) was used to measure the adhesion force between a silicon nitride probe and bacteria treated with urine samples. Within 2 hours after CJC consumption, bacteria of the clinical strains treated with the corresponding urine sample demonstrated lower adhesion forces than those treated with urine collected before CJC consumption. The adhesion forces continued decreasing with time after CJC consumption over the 8-hour measurement period. The adhesion forces of bacteria after exposure to urine collected following water consumption did not change. HB101 showed low adhesion forces following both water and CJC consumption, and these did not change over time. The AFM adhesion force measurements were consistent with the results of a hemagglutination assay, confirming that oral consumption of CJC could act against adhesion of uropathogenic E. coli. |
| File Format | HTM / HTML |
| ISSN | 1096620X |
| e-ISSN | 15577600 |
| DOI | 10.1089/jmf.2010.0154 |
| Journal | Journal of Medicinal Food |
| Issue Number | 7-8 |
| Volume Number | 14 |
| Language | English |
| Publisher | Mary Ann Liebert, Inc. |
| Publisher Date | 2011-07-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Discipline Nutritional Sciences Bacterial Adhesion Beverages Escherichia Coli Infections Metabolism Plant Preparations Administration & Dosage Urinary Tract Infections Uropathogenic Escherichia Coli Physiology Vaccinium Macrocarpon Chemistry Microbiology Isolation & Purification Research Support, N.i.h., Extramural Research Support, Non-u.s. Gov't |
| Content Type | Text |
| Resource Type | Article |
| Subject | Nutrition and Dietetics Medicine |
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