Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Study Finds Differences between Blood Pressure Medicines and Newly-Diagnosed Diabetes

23.01.2007
Rush Researchers Identify Antihypertensive Drugs That Facilitate and/or Prevent Diabetes

Patients with high blood pressure are more likely to develop new-onset diabetes than those who don’t have hypertension, but this tendency is often attributed to higher weight, recent weight gain, or stronger family history of diabetes among those with high blood pressure Doctors have known since 1958 that some drugs used to control high blood pressure have the side effect of increasing blood sugar and causing new-onset diabetes.

Researchers at Rush University Medical Center analyzed the data from all of the randomized clinical trials (in which the assignment of initial drugs is based solely on chance, thus balancing the groups regarding other risk factors for diabetes), and have found significant differences between antihypertensive drugs. ACE-inhibitors and the newer angiotensin receptor blockers, or ARBs prevent people from getting diabetes, and the older diuretics or beta-blockers, increase the chance that a person becomes diabetic, compared to either placebo (inactive sugar-pills) or calcium channel blockers according to a study published in the January 20, 2007 issue of The Lancet.

Rush Preventive Medicine professor Dr. William J. Elliott, and Peter Meyer, Ph.D., director of the Section of Biostatistics, analyzed 22 long-term randomized clinical trials of each class of antihypertensive drugs, including placebo (inactive sugar-pills), to assess the chance that a person would develop diabetes during about 5 years of observation. The studies included 143,153 patients, and took place from 1966 through mid-September of 2006.

Their novel method of combining all the information available from clinical trials found that the lowest risk of new-onset diabetes occurred with ARBs or ACE-inhibitors, followed by calcium channel blockers or placebo (both of which were relatively neutral), and highest with beta-blockers or diuretics. They concluded that compared to inactive sugar-pills, diuretics or beta-blockers slightly increase the risk of becoming diabetic, whereas ARBs or ACE-inhibitors significantly decrease the risk.

“Most other studies of the association between drugs used mostly for high blood pressure could have been confused by differences in the patients studied. By only including studies that used randomization to minimize and balance differences between those assigned to different antihypertensive drugs, and by using a novel technique that can attribute risk both between agents that have been directly compared, and those that compare the results indirectly, we can see differences that other techniques cannot,” said Elliott.

“Our ‘indirect comparisons’ are similar to the way oddsmakers in Las Vegas compute the point spread for Sunday’s Bears-Saints playoff game. Since the Bears and Saints haven’t played each other (i.e., a direct comparison) this season, one can compare the record of the Bears against those teams that the Saints have also played this season. We use a similar strategy to compare, for example, ACE-inhibitors vs. ARBs, which have not been compared directly in any clinical trial to date.”

The study is expected to be of greater interest in the United Kingdom than the United States, because the British National Institute of Health and Clinical Excellence issued a new set of guidelines about hypertension treatment for primary care physicians in June 2006 that are based on economic considerations. Because diabetics generate about 4 times the healthcare expenditures as non-diabetics, the new British guidelines recommend against using both a diuretic and a beta-blocker for the routine treatment of hypertension. In the United States, however, tradition and the 2003 national hypertension guidelines still recommend a diuretic as first-line treatment, and a beta-blocker only one of several acceptable second-line options.

The authors were careful to point out that their data do not address the ongoing controversy about whether new-onset diabetes leads to as many heart attacks, strokes or death, as long-standing diabetes, which will require more studies.

The authors’ data do suggest, however, that the differences between antihypertensive drugs regarding the risk for new-onset diabetes are real and significant. Whether an overweight person with hypertension, others in the family with diabetes, and a recent weight gain can avoid the diagnosis of diabetes in the long-term by taking a specific type of antihypertensive drug is uncertain, and should be discussed with the treating physician as just one aspect of the choice of drug to lower blood pressure in that individual.

Kim Waterman | EurekAlert!
Further information:
http://www.rush.edu

More articles from Health and Medicine:

nachricht Laser activated gold pyramids could deliver drugs, DNA into cells without harm
24.03.2017 | Harvard John A. Paulson School of Engineering and Applied Sciences

nachricht What does congenital Zika syndrome look like?
24.03.2017 | University of California - San Diego

All articles from Health and Medicine >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Giant Magnetic Fields in the Universe

Astronomers from Bonn and Tautenburg in Thuringia (Germany) used the 100-m radio telescope at Effelsberg to observe several galaxy clusters. At the edges of these large accumulations of dark matter, stellar systems (galaxies), hot gas, and charged particles, they found magnetic fields that are exceptionally ordered over distances of many million light years. This makes them the most extended magnetic fields in the universe known so far.

The results will be published on March 22 in the journal „Astronomy & Astrophysics“.

Galaxy clusters are the largest gravitationally bound structures in the universe. With a typical extent of about 10 million light years, i.e. 100 times the...

Im Focus: Tracing down linear ubiquitination

Researchers at the Goethe University Frankfurt, together with partners from the University of Tübingen in Germany and Queen Mary University as well as Francis Crick Institute from London (UK) have developed a novel technology to decipher the secret ubiquitin code.

Ubiquitin is a small protein that can be linked to other cellular proteins, thereby controlling and modulating their functions. The attachment occurs in many...

Im Focus: Perovskite edges can be tuned for optoelectronic performance

Layered 2D material improves efficiency for solar cells and LEDs

In the eternal search for next generation high-efficiency solar cells and LEDs, scientists at Los Alamos National Laboratory and their partners are creating...

Im Focus: Polymer-coated silicon nanosheets as alternative to graphene: A perfect team for nanoelectronics

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are less stable. Now researchers at the Technical University of Munich (TUM) have, for the first time ever, produced a composite material combining silicon nanosheets and a polymer that is both UV-resistant and easy to process. This brings the scientists a significant step closer to industrial applications like flexible displays and photosensors.

Silicon nanosheets are thin, two-dimensional layers with exceptional optoelectronic properties very similar to those of graphene. Albeit, the nanosheets are...

Im Focus: Researchers Imitate Molecular Crowding in Cells

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to simulate these confined natural conditions in artificial vesicles for the first time. As reported in the academic journal Small, the results are offering better insight into the development of nanoreactors and artificial organelles.

Enzymes behave differently in a test tube compared with the molecular scrum of a living cell. Chemists from the University of Basel have now been able to...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

International Land Use Symposium ILUS 2017: Call for Abstracts and Registration open

20.03.2017 | Event News

CONNECT 2017: International congress on connective tissue

14.03.2017 | Event News

ICTM Conference: Turbine Construction between Big Data and Additive Manufacturing

07.03.2017 | Event News

 
Latest News

Argon is not the 'dope' for metallic hydrogen

24.03.2017 | Materials Sciences

Astronomers find unexpected, dust-obscured star formation in distant galaxy

24.03.2017 | Physics and Astronomy

Gravitational wave kicks monster black hole out of galactic core

24.03.2017 | Physics and Astronomy

VideoLinks
B2B-VideoLinks
More VideoLinks >>>