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Health See other Health Articles Title: Cranberries and health Cranberry supplement and juice benefit, side effects research, use for UTI and urinary tract health by Ray Sahelian, M.D. American cranberry (Vaccinium macrocarpon) is one of only three species of fruit native to North America. The other species are blueberry (Vaccinium angustifolia) and bilberry (Vaccinium myrtillus). Cranberry typically grows in bogs and is a member of the same family as blueberry and bilberry. Cranberry is widely used to prevent urinary tract infection (UTI). It was initially believed to function by acidifying urine. However, the mechanism is now thought to be inhibition of adhesion of bacteria to uroepithelial cells by proanthocyanadin, a compound present in cranberry. Cranberry like other fruits is also rich in phenolic phytochemicals such as phenolic acids, flavonoids and ellagic acid. Consumption of cranberry has been shown to have a capacity to inhibit peptic ulcer-associated bacterium, Helicobacter pylori. Cranberries may also protect against heart disease and certain types of cancer, probably through the antioxidant and anti-tumor effects of flavonoids. Chemical composition Cranberry contains a number of compounds including proanthocyanidins, anthocyanidins, flavonoids, and hydroxycinnaminic acid. Flavonoids in cranberries contribute to the red color and have antioxidant properties. Most of the compounds in cranberry are antioxidants. Genitourinary Tract Support Herbal Supplement Cranberry is widely used to support the health of the genitourinary tract. Research has shown that it has an anti-adhesion factor that prevents bacteria from attaching to the walls of the urinary tract. Planetary Formulas Cranberry concentrate is a concentrated extract yielding a broad spectrum of cranberry's valuable plant acids. Each pill is equivalent to drinking several ounces of cranberry juice. Lifestyle Recommendations: To support the health of the genitourinary tract, drink plenty of pure water; avoid the excessive consumption of sugar, which can lead to increased bacterial levels; and reduce caffeine and alcohol, which may irritate the bladder Form of intake You can get the benefits of cranberry by drinking the juice, diluting concentrate with water, taking capsules, or using a tincture. A cranberry supplement would minimize the high calories that come from drinking the juice. UTI treatment or prevention Cranberry fruit is used primarily for the prevention or treatment of urinary tract infections ( UTI ) or bladder infections. The use of cranberry juice among individuals to prevent or treat bladder infection is a common practice. Cranberry may relieve symptoms associated with bladder infection and may reduce the need for antibiotics. Before the advent of antibiotics, cranberry juice continued to be a popular treatment for urinary tract infections (UTIs). The current proposed mechanism of action focuses primarily on cranberry's ability to prevent bacterial binding to host cell surface membranes. In vitro studies have observed potent inhibition of bacterial adherence of Escherichia coli4 and other gram-negative uropathogens. Cranberry was initially believed to function by acidifying urine. However, the mechanism is now thought to be inhibition of adhesion of bacteria to uroepithelial cells (cells lining inside the urethra and bladder wall) by proanthocyanadin, a compound present in cranberry. Proanthocyanidins bind to harmful bacteria such as E. coli, forming a "Teflon-like" coating around them. The coating prevents the bacteria from sticking to gastrointestinal and urinary tract walls, preventing infections. Cranberry or trimethoprim for the prevention of recurrent urinary tract infections? A randomized controlled trial in older women. J Antimicrob Chemother. 2009 Feb; McMurdo ME, Argo I, Phillips G, Daly F, Davey P. Ageing and Health, Division of Medicine and Therapeutics, Ninewells Hospital and Medical School, University of Dundee, Dundee DD1 9SY, Scotland, UK. We compared the effectiveness of cranberry extract with low-dose trimethoprim in the prevention of recurrent urinary tract infections (UTIs) in older women. One hundred and thirty-seven women with two or more antibiotic-treated UTIs in the previous 12 months were randomized to receive either 500 mg of cranberry extract or 100 mg of trimethoprim for 6 months. Thirty-nine of 137 participants (28%) had an antibiotic-treated UTI (25 in the cranberry group and 14 in the trimethoprim group). Trimethoprim had a very limited advantage over cranberry extract in the prevention of recurrent UTIs in older women and had more adverse effects. Our findings will allow older women with recurrent UTIs to weigh up with their clinicians the inherent attractions of a cheap, natural product like cranberry extract whose use does not carry the risk of antimicrobial resistance or super-infection with Clostridium difficile or fungi. December 2009 - The results of a clinical study, recently published in the journal Spinal Cord, indicate that the use of Cran-Max Cranberry Concentrate for people with spinal cord injury resulted in a significant reduction in both the incidence of urinary tract infection (UTI) and the number of subjects with a UTI over a 12-month period. In the randomized, double-blind, cross-over trial, conducted at the Spinal Cord Injury Unit of the Veterans Administration Hospital in Boston, MA, 16 subjects had 21 UTIs while taking the placebo, compared to only six subjects who had seven UTIs while taking the Cran-Max cranberry concentrate. In the article, published in the 2008 edition of the journal, researchers concluded, “Despite advances in the management of neurogenic bladder, urinary tract infection represents a leading cause of morbidity and hospitalization. Cranberry extract tablets should be considered for the prevention of UTI in spinal cord injury patients with neurogenic bladder.” In the study, patients were randomly assigned to receive either Cran-Max tablets or placebo tablets for six months, followed by the alternative preparation for an additional six months. Of the 47 male subjects who completed the study, results showed that patients with a high glomerular filtration rate (a test to measure kidney function) received the most benefit from the cranberry supplement. Benefit in men Researchers treated 42 men with an average age of 63 years who had lower urinary tract symptoms (LUTS) with benign prostatic hyperplasia (BPH). They took 1500 mg of dried powdered cranberry or placebo for 6 months. The cranberry treated group experienced improvement in rate of urine flow, average flow, and had lower total PSA levels. Vidlar A, Vostalova J, Ulrichova J, et al. The effectiveness of dried cranberries ( Vaccinium macrocarpon) in men with lower urinary tract symptoms. Br J Nutr. Oct 2010. Cranberry juice versus cranberry supplement for UTI For prevention of urinary tract infections, one has to consider the cost of regularly drinking cranberry juice, as well as the extra calories. As for cranberry supplements, two studies suggested they may work, but cranberry supplements come in a wide range of different strengths. Optimal dose of cranberry supplements and duration of use is not understood well. It is not fully known whether cranberry supplements are equivalent to cranberry juice in the fruit's biologically active substances. Cholesterol impact Favourable impact of low-calorie cranberry juice consumption on plasma HDL-cholesterol concentrations in men. Br J Nutr. 2006 Aug.Institute of Nutraceuticals and Functional Foods, Laval University, Quebec G1K 7P4, Canada and Lipid Research Center Laval University Medical Research Center, CHUL Pavilion, Quebec Canada. A low HDL-cholesterol concentration is an independent risk factor for CVD. Studies have suggested that flavonoid consumption may be cardioprotective, and a favourable impact on circulating HDL-cholesterol concentrations has been suggested to partially explain this association. The aim of the present study was to determine the effect of consuming increasing daily doses of low-calorie cranberry juice cocktail (CJC) on the plasma lipid profile of abdominally obese men. For that purpose, thirty men (mean age 51 (SD 10) years) consumed increasing doses of CJC during three successive periods of 4 weeks (125 ml/d, 250 ml/d, 500 ml/d). We noted a significant increase in plasma HDL-cholesterol concentration after the consumption of 250 ml CJC/d, an effect that plateaued during the last phase of the stud). Changes in plasma apo A-I and triacylglycerol concentrations were the only variables significantly contributing to the variation in plasma HDL-cholesterol concentration noted in response to the intervention. No variation was observed in total as well as in LDL and VLDL cholesterol. The present results show that daily CJC consumption is associated with an increase in plasma HDL-cholesterol concentrations in abdominally obese men. Polyphenolic compounds from cranberries may be responsible for this effect, supporting the notion that the consumption of flavonoid-rich foods can be cardioprotective. Pregnancy Daily cranberry juice for the prevention of asymptomatic bacteriuria in pregnancy: a randomized, controlled pilot study. J Urol. 2008 Oct. Wing DA, Rumney PJ, Preslicka CW, Chung JH. Department of Obstetrics and Gynecology, University of California, Irvine, Orange, California 92868, USA. We compared the effects of daily cranberry juice cocktail to those of placebo during pregnancy on asymptomatic bacteriuria and symptomatic urinary tract infections. Our data suggest there may be a protective effect of cranberry ingestion against asymptomatic bacteriuria and symptomatic urinary tract infections in pregnancy. Further studies are planned to evaluate this effect. Prostate health. LUTS Cranberries may be of benefit in reducing lower urinary tract symptoms (LUTS) in older men, thereby, improving prostate health. Forty-two men with an average age of 63 years were divided into two groups where one group received 1500 mg of dried powdered cranberries everyday for six months and the second group was given placebo pills. Men in the cranberry group had improvements in symptoms. Since the current medications used to treat LUTS in men can cause adverse effects, cranberries may be a beneficial new therapy. Vidlar A, Vostalova J, Ulrichova J, et al. The effectiveness of dried cranberries in men with lower urinary tract symptoms. Br J Nutr. 2010. Teeth and tooth health New research shows a generous helping of cranberry sauce may actually offer benefits for their teeth. Cranberries, which already are known to help thwart urinary tract infections, may also prevent tooth decay and cavities, dental researchers reported in the January, 2006 issue of the journal Caries Research. The same sticky compounds in the small, hard red fruit -- which is boiled into a jelly that is a staple at American winter holiday meals -- that help keep bacteria at bay in the bladder also appear to help prevent bacteria from clinging to teeth. They also found cranberry seemed to help ward off plaque, a gooey substance formed from bits of food, saliva, and acid that can harbor bacteria and eventually irritate the gums. The ultimate goal is to extract cranberry's protective properties and add them to toothpaste or mouthwash. In the meantime, people should be advised against drinking or eating excessive amounts of cranberry -containing products since sugar is often added to cranberries. The cranberry seed has not been studied as much as the juice. Historical uses Early European settlers first used cranberries because the local fruit lasted through the winter and enhanced the flavor of gamy meat. The settlers had learned about the berry's culinary potential from local Native Americans who endured cold winters by consuming pemmican, a cake of cranberries, nuts and dried venison or bear meat. The ripe cranberry fruit was used medicinally by Native Americans for the treatment of bladder and kidney ailments. Pilgrims called the fruit "craneberry" because the stem and flower resembled the head, neck, and beak of a crane. Therapeutic applications of cranberries documented during the 17th century included the relief of blood disorders, stomach ailments, liver problems, vomiting, appetite loss, scurvy, and cancer. Native Americans and Europeans prescribed cranberries for fevers, gastrointestinal problems and dropsy Dropsy is a term used to describe inflammation or swelling. Food Poisoning Protection Cranberry extract may reduce the likelihood of food-borne disease. Pathogen levels in raw meat are reduced after the application of cranberry concentrate. These include significantly reduced growth of Salmonella, E. coli and other dangerous bacteria. Compounds in cranberries inhibit the growth of bacteria associated with food-borne illnesses. Other research has found cranberry juice reduces E. coli, Salmonella and other bacteria in unpasteurised apple cider. Cranberries are known to have "anti-adhesion" properties that protect the body from certain harmful bacteria that cause urinary tract infections, stomach ulcers and gum disease. In the US, PepsiCo Inc. and Ocean Spray have formed a long-term strategic alliance under which Pepsi-Cola North America will distribute single-serve cranberry juice products in North America under the Ocean Spray name. Cranberry review The cranberry is full of antioxidants. The National Institutes of Health is funding research on the effect of cranberry on heart disease, yeast infections and other conditions, and other researchers are investigating its potential against cancer, stroke and viral infections. So far, research has found drinking cranberry juice can block urinary infections by binding to bacteria so they can’t adhere to cell walls. Women often drink unsweetened cranberry juice to treat an infection. A compound discovered in cranberry, proanthocyanidine, prevents plaque formation on teeth; mouthwashes containing it are being developed to prevent periodontal disease. In some people, regular cranberry juice consumption for months can kill the H. pylori bacteria, which can cause stomach cancer and ulcers. Drinking cranberry juice daily may increase levels of HDL, or good cholesterol and reduce levels of LDL, or bad cholesterol. Cranberry may prevent tumors from growing rapidly or starting in the first place. Extracts of chemicals in cranberry prevent breast cancer cells from multiplying in a test tube; whether that would work in women is unknown. Cranberry availability from herb and ingredient suppliers Cranberry is available as a plain cranberry juice concentrate powder or in various extract potencies, for instance 4 to 1, 12 to 1, 18 to 1 concentrations. One supplier sells cranberry extract as 30 percent total acid, 10 percent quinic acid and 3 percent total phenols. Cranberry side effect, caution, risks, danger, interaction with medications Fatal hemopericardium and gastrointestinal hemorrhage due to possible interaction of cranberry juice with warfarin Coumadin. J R Soc Health. 2008 Nov; Griffiths AP, Beddall A, Pegler S. Department of Histopathology, Morriston Hospital, Swansea SA6 6NL, UK. We report a case of fatal internal hemorrhage in an elderly man who consumed only cranberry juice for two weeks while maintaining his usual dosage of warfarin Coumadin. We propose that naturally occurring compounds such as flavonoids, which are present in fruit juices, may increase the potency of warfarin by competing for the enzymes that normally inactivate warfarin. While traditionally regarded as foodstuffs, consumption of fruit juices should be considered when patients develop adverse drug reactions. Elevated International Normalized Ratio after concurrent ingestion of cranberry sauce and warfarin. Am J Health Syst Pharm. 2008 Nov 15; Mergenhagen KA, Sherman O. Infectious Disease, James J. Peters Veterans Affairs Medical Center, Bronx, NY 10468, USA. A case of increased International Normalized Ratio (INR) values in a patient receiving warfarin who consumed a large amount of cranberry sauce is reported. A 75-year-old Caucasian man with atrial fibrillation was taking 22.5 mg of warfarin weekly for 10 months and had maintained stable INR values between 2 and 3. During a clinic visit one week after Thanksgiving, the patient's INR was 4.8. The patient was extensively questioned about any changes in his diet, medications, and health. The patient reported consuming approximately 110 g of cranberry sauce for seven consecutive days before the clinic visit. He reported no other diet or health changes. The patient denied alcohol consumption, had not taken nutritional supplements, and did not miss or double any medication doses during this time period. There were no dosing changes or discernible compliance issues in the 10 months preceding the change in INR. The patient's complete blood cell count and results of a chemistry panel and liver function tests were within normal limits. He did not have any bleeding or bruising. The only identifiable change was the addition of store-bought cranberry sauce to his diet. The patient's warfarin dose was held for two days. Subsequently, the patient resumed warfarin at a dosage of 20 mg per week. Seven days after the patient discontinued the cranberry sauce, his INR returned to 2.2 and remained stable over the next month. Consumption of cranberry sauce led to an increase in INR values in a patient receiving warfarin. I wanted to forward a study reference conducted by warfarin expert Jack Ansell, MD who evaluated the myth (originating only from isolated case studies in England) that cranberry products can elevate INR test results. Dr. Ansell found that normal consumption of cranberry products really had no affect on patient INRs and therefore not a contributor to elevated bleeding risk. Reference: Ansell, J. 2009. The Absence of an Interaction Between Warfarin and Cranberry Juice: A Randomized, Double-Blind Trial. Journal of Clinical Pharmacology, 49:824-830. I saw you advise patients are at risk of bleeding for cranberry and cranberry products. We provide information for our visitors that cranberry can be safely consumed in normal quantities by patients taking warfarin. Gary B Liska, Disease Management / Provider Relations Quality Assured Services, Inc. Cranberry benefit questions Do sweetened dried cranberries have similar bladder benefits as cranberry juice? Dried cranberries do contain the anti-adhesion mechanism present in cranberry juice, puree and concentrate that prevents urinary tract infections. However, I am not thrilled about the sugar added to the cranberry. I am in the process of buying the Prostate Power Rx and, besides, I am going to take a cranberry (Vaccinium macrocarpon) supplement that it seems to improve the urinary flow according to a Wikipedia statement. Is there any side effect if I take both products together? It is not possible for us to predict any one person's reaction to a supplement, a combination of supplements, or combining with medications.
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#1. To: Tatarewicz (#0)
great article on cranberries and health. I think you might be asking questions. Some doctors prefer to advise you to use drugs for a swollen prostate. I looked on the WebMD site for advice on their drug, I think they call it Flomax. According to what I read that drug helps only a very small percent of men. The placebo helped 25% of the time, the drug helped 35% of the time. and it has side effects 100% of the time. and all it does is make you pee a little better. I'd avoid the prescription drug for this 100%. The herbs and diet supplement route is far superior. My brother is a doctor and he told me this. and it is also my conclusion. Younger doctors are increasingly loyal to the drug makers. Few will clue you in. Cranberry juice is like a magic thing for people with kidney infections. It makes people pee like crazy and it clears up kidney infections very rapidly. It is also very excellent for prostate problems. because the more you pee the better for that condition. But you want to pee without things that irritate such as caffeine. cranberry is the best. You can't consume cranberry without a sweetener because it is too bitter. Trader Joe's sells cranberry juice sweetened with grape juices. That is the best way to drink it. Some sweeten it with cane sugar or high fructose corn sugar. You can do it either way, but the grape juice strategy is far superior. The dried cranberries they sell have sugar packed into it, definitely not optimal. You're not going to over-dose on this stuff, the 2 products you mentioned will not harm you. If you drink too much cranberry juice it may cause an upset stomach, etc. That is your regulator. non-drug supplements very rarely harm you. You can be aggressive in using them. Few doctors will help you out. You're on your own. Good luck. obviously, I'm in a similar category.
Urination-blocking prostate can be easily overcome with an in-and-out catheter, "sterilized" in a strong saline solution and rinsed in boiled water before insertion. Other than the potential of introducing bacteria into the urinary tract the only other drawback is that introduction of a foreign object into the bladder may initiate crystallization and stone formation, so periodic ultrasound or a cystoscopy would be worthwhile. Poking the catheter through the sphincter sometimes results in bleeding. This was particularly noticeable after a sugary diet: jams, dates, fructose-containing drinks, even honey; could just about predict bleeding after ingesting excess sugar. Would be interesting to survey stroke victims to see if excess sugar might have been a factor in membrane weakening or whatever initiated the bleeding.
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