MedicineWorld.Org
Your gateway to the world of medicine
Home
News
Cancer News
About Us
Cancer
Health Professionals
Patients and public
Contact Us
Disclaimer

Medicineworld.org: Drink Orange Juice To Keep Kidney Stones Away

Back to kidney watch news Blogs list Cancer blog  


Subscribe To Kidney Watch News RSS Feed  RSS content feed What is RSS feed?

Drink Orange Juice To Keep Kidney Stones Away

Drink Orange Juice  To Keep Kidney Stones Away
A daily glass of orange juice can help prevent the recurrence of kidney stones better than other citrus fruit juices such as lemonade, scientists at UT Southwestern Medical Center have discovered.

The findings indicate that eventhough a number of people assume that all citrus fruit juices help prevent the formation of kidney stones, not all have the same effect. The study is available online and is scheduled would be reported in the Oct. 26 issue of the Clinical Journal of the American Society of Nephrology.

Medically managing recurrent kidney stones requires dietary and changes in lifestyle as well as therapy such as the addition of potassium citrate, which has been shown to lower the rate of new stone formation in patients with kidney stones.

But some patients can't tolerate potassium citrate because of gastrointestinal side effects, said Dr. Clarita Odvina, assistant professor of internal medicine at the Charles and Jane Pak Center for Mineral Metabolism and Clinical Research and the study's lead author. In those cases, dietary sources of citrate such as orange juice may be considered as an alternative to pharmacological drugs.

"Orange juice could potentially play an important role in the management of kidney stone disease and may be considered an option for patients who are intolerant of potassium citrate," Dr. Odvina said.

All citrus juices contain citrate, a negatively charged form of citric acid that gives a sour taste to citrus fruits. Scientists compared orange juice and lemonade juices with comparable citrate contents and observed that the components that accompany the citrate can alter the effectiveness of the juice in decreasing the risk of developing new kidney stones.

Kidney stones develop when the urine is too concentrated, causing minerals and other chemicals in the urine to bind together. Over time, these crystals combine and grow into a stone.

In the UT Southwestern study, 13 volunteers some with a history of kidney stones and some without underwent three phases, each lasting one week. Chosen in random order, the phases included: a distilled water or control phase; an orange juice phase; and a lemonade phase. There was a three-week interval between phases.

During each phase, volunteers drank 13 ounces of orange juice, lemonade or distilled water three times a day with meals. They also maintained a low-calcium, low-oxalate diet. Urine and blood samples were taken at intervals during each phase. The study was done at UT Southwestern's General Clinical Research Center.

Orange juice, scientists found, boosted the levels of citrate in the urine and reduced the crystallization of uric acid and calcium oxalate the most frequently found ingredient in kidney stones.

But lemonade did not increase the levels of citrate, an important acid neutralizer and inhibitor of kidney stone formation.

"One reason might be the different constituents of various beverages," Dr. Odvina said.

For instance, the citrate in orange and grapefruit juice is accompanied by a potassium ion while the citrate in lemonade and cranberry juice is accompanied by a hydrogen ion. Ions of hydrogen, but not potassium, counteract the beneficial effects of the high citrate content.

"There is an absolute need to consider the accompanying positive charge [of hydrogen ions] whenever one assesses the citrate content of a diet," Dr. Odvina said.



Posted by: Mark    Source




Did you know?
A daily glass of orange juice can help prevent the recurrence of kidney stones better than other citrus fruit juices such as lemonade, scientists at UT Southwestern Medical Center have discovered. The findings indicate that eventhough a number of people assume that all citrus fruit juices help prevent the formation of kidney stones, not all have the same effect. The study is available online and is scheduled would be reported in the Oct. 26 issue of the Clinical Journal of the American Society of Nephrology.

Medicineworld.org: Drink Orange Juice To Keep Kidney Stones Away

Asthma| Hypertension| Medicine Main| Diab french| Diabetes drug info| DruginfoFrench| Type2 diabetes| Create a dust free bedroom| Allergy statistics| Cancer terms| History of cancer| Imaging techniques| Cancer Main| Bladder cancer news| Cervix cancer news| Colon cancer news| Esophageal cancer news| Gastric cancer news| Health news| Lung cancer news| Breast cancer news| Ovarian cancer news| Cancer news|

Copyright statement
The contents of this web page are protected. Legal action may follow for reproduction of materials without permission.