Navigation Links
Potassium loss from blood pressure drugs may explain higher risk of adult diabetes
Date:11/24/2008

Johns Hopkins researchers have discovered that a drop in blood potassium levels caused by diuretics commonly prescribed for high blood pressure could be the reason why people on those drugs are at risk for developing type 2 diabetes. The drugs helpfully accelerate loss of fluids, but also deplete important chemicals, including potassium, so that those who take them are generally advised to eat bananas and other potassium-rich foods to counteract the effect.

"Previous studies have told us that when patients take diuretic thiazides, potassium levels drop and the risk of diabetes climbs to 50 percent," says lead researcher Tariq Shafi, M.D., M.H.S., of the Department of Nephrology at Johns Hopkins University School of Medicine. "Now, for the first time, we think we have concrete information connecting the dots."

Thiazides, such as chlorthalidone, are an inexpensive and highly effective way to treat high blood pressure and have been used widely for decades. However, their association with diabetes has forced many hypertension suffers to use other medications that can be several times as expensive, says Shafi.

"This study shows us that as long as physicians monitor and regulate potassium levels, thiazides could be used safely, saving patients thousands of dollars a year," says Shafi. "It could be as simple as increasing the consumption of potassium-rich foods like bananas and oranges and/or reducing salt intake, both of which will keep potassium from dropping."

Researchers examined data from 3,790 nondiabetic participants in the Systolic Hypertension in Elderly Program (SHEP). SHEP is a randomized clinical trial conducted between 1985 and 1991 designed to determine the risk versus benefit of giving a certain high blood pressure medication to people age 60 years or older.

Half of the subjects were treated with chlorthalidone and half with a fake drug. Of the 3,790 subjects, 1,603 were men and 724 were nonwhite. None had a history of diabetes. In the original study, potassium levels were monitored as a safety precaution to guard against irregular heartbeat, a condition that can result from low potassium.

The results, published online this month in the journal Hypertension, showed that for each 0.5 milliequivalent-per-liter (MEq/L) decrease in serum potassium, there was a 45 percent increased risk of diabetes. None of the people in the group receiving the fake drug developed low potassium levels. Shafi says these findings should encourage physicians to establish a potassium baseline by checking hypertensive patients' medical records to determine their potassium levels before prescribing thiazides.

"We would normally look at the number only after six weeks of treatment to make sure it was not low enough to cause heart problems. As a result, we might not be aware that it dropped significantly from where it was before treatment putting the patient at risk for developing diabetes," says Shafi.


'/>"/>

Contact: Eric Vohr
evohr1@jhmi.edu
410-955-8665
Johns Hopkins Medical Institutions
Source:Eurekalert

Related medicine news :

1. Lack of Potassium Linked to High Blood Pressure
2. Low potassium linked to high blood pressure
3. Unilever Unveils Promise(R) SuperShots(R) for Blood Pressure, the First Functional Shot to Increase Daily Potassium Intake to Help Reduce the Risk of High Blood Pressure
4. Watson Receives FDA Approval of Potassium Chloride Extended-Release Capsules
5. A drug-sensitive traffic cop tells potassium channels to get lost
6. Continuous Blood Pressure Monitoring Predicts Risks
7. Gulf Coast Hospital Chooses Global Med Technologies(R) Blood System
8. High Blood Pressure Stalks Many Americans
9. New Study Data: JANUVIA™ (sitagliptin) Significantly Reduced Blood Sugar Levels and Was Not Associated with Hypoglycemia in Elderly Patients with Type 2 Diabetes
10. A simple blood test for colon cancer
11. Turkey Tips, Massage, and a Blood Test: St. Anthonys Celebrates Diabetes Day in New Green Clinic
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:10/13/2017)... ... October 13, 2017 , ... The Visiting Nurse Association ... Featuring a collection of specialty vendors and unique items from across the nation, this ... health and wellness services offered by the VNA. The boutique will be open ...
(Date:10/13/2017)... ... 2017 , ... Yisrayl Hawkins, Pastor and Overseer at The House of Yahweh, ... and least understood books in the Holy Scriptures, Revelation. The Book of Revelation paints ... for centuries. Many have tossed it off as mere rubbish, but Yisrayl Hawkins says ...
(Date:10/13/2017)... ... , ... “The Journey: From the Mountains to the Mission Field”: the story ... the Philippines. “The Journey: From the Mountains to the Mission Field” is the creation ... has taught all ages and currently teaches a class of ladies at her church, ...
(Date:10/12/2017)... ... October 12, 2017 , ... CitiDent ... sleep apnea using cutting-edge Oventus O2Vent technology. As many as 18 million ... by frequent cessation in breathing. Oral appliances can offer significant relief to about ...
(Date:10/12/2017)... (PRWEB) , ... October 12, 2017 , ... IsoComforter, Inc. ... products, announced today the introduction of an innovative new design of the shoulder pad. ... so you get maximum comfort while controlling your pain while using cold therapy. By ...
Breaking Medicine News(10 mins):
(Date:9/27/2017)... , Sept. 27, 2017  Commended for their devotion to ... awards. Ranked as number one in the South Florida Business ... in Inc. 5000 yearly list, the national specialty pharmacy has ... Armando Bardisa will soon be honored by SFBJ as ... Set to receive his award in October, ...
(Date:9/25/2017)... , Sept. 25, 2017   Montrium , ... File solutions, today—from the IQPC Trial Master Files ... , NL)—announced that EastHORN Clinical Services has selected ... programs and TMF management. EastHORN, a leading European ... platform to increase transparency to enable greater collaboration ...
(Date:9/23/2017)... 2017 Janssen Biotech, Inc. (Janssen) announced today ... the U.S. Food and Drug Administration (FDA) for the ... the treatment of moderately to severely active rheumatoid arthritis ... are needed to further evaluate the safety of sirukumab ... "We are ...
Breaking Medicine Technology: