A recent study at Rutgers University, and
published in Phytochemistry, confirmed a long-held theory that ingestion of
cranberries is helpful in protecting against harmful bacterial in the urinary
tract. This is due to one of its natural compounds called proanthocyanidin
[PAC's], and its anti-adhesion effect. Cranberry components are potential anti-caries agents since they
inhibit acid production, attachment, and biofilm formation by Streptococcus
mutans.[1]
The anti-adhesion property of cranberries
prevents bacteria from sticking to the urinary tract, which is one of the most
common regions for a woman to develop a bacterial infection. There is some
conjecture that PAC's found in cranberry may minimize stomach ulcers and gum disease by the same mechanism. Regarding
periodontal diseases, the same cranberry fraction inhibits host inflammatory
responses, production, and activity of enzymes that cause the destruction of
the extracellular matrix, biofilm formation, and adherence of Porphyromonas
gingivalis, and proteolytic activities and coaggregation of
periodontopathogens.[2] The study concluded that 80% of the antibiotic-resistant bacteria were
prevented from sticking by the anti-adhesion property of cranberries.
This study compared the action of PAC's in
cranberries to those in other foods such as grape and apple juice, dark
chocolate and green tea. Apparently, not all PAC-rich foods have the same
success or offer the same protection. By means of comparison, one eight-ounce
glass of cranberry juice has the equivalent PAC's as a cup of frozen or fresh
cranberries, 1/3 cup of sweetened dried cranberries or 1/3 cup of cranberry
sauce. Both this study and earlier research show that the benefits of one glass
of cranberry juice kicks in about two hours after consumption and lasts for
about 10 hours. So, it is recommended that you drink one glass of cranberry
juice in the morning and one in the evening for the maximum protection.
Remember, cranberry is a food and not a treatment. Keep in mind that anyone who
suspects an infection should consult the appropriate health care practitioner.
Novy Scheinfeld, DDS, PC
290 Carpenter Drive, 200A
Atlanta (Sandy Springs), GA 30328
404-256-3620
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