Changes associated with reduced risk of heart attack and stroke
Clinical study results presented today in New Orleans, Louisiana, during the American Heart Association’s Scientific Sessions 2004 proceedings, have shown that the drug pioglitazone (ACTOS®, Takeda) significantly reduced the thickness of the carotid (neck) artery in patients with type 2 diabetes. By contrast, no change in carotid thickness was seen in a group of patients who received glimepiride, an older drug for type 2 diabetes. "These results are provocative, because both drugs showed similar effects on lowering blood glucose, the traditional principal target for type 2 diabetes therapy," noted principal investigator Thomas Forst, Professor for Internal Medicine, Institute for Clinical Research and Development in Mainz, Germany.
"The thickness of the carotid artery is an indicator of atherosclerotic disease, which may both reduce arterial blood flow and set the stage for unstable blood clots in the arteries to dislodge and potentially cause a heart attack or stroke. The reduction in thickness by pioglitazone, a member of a new class of type 2 diabetes drugs called thiazolidinediones (TZDs) suggests that this medication may have benefits beyond improving metabolic control in patients with diabetes mellitus type 2," continued Forst. "This substantial regression of carotid intima media thickness over just 12 or 24 weeks may have important prognostic implications for patients with type 2 diabetes."
Study Design and Results
In the study, B-mode ultrasound was used to measure the intima media thickness (IMT) of the carotid artery before and 12 and 24 weeks after 173 patients received oral therapy with either pioglitazone (45 mg/day) or glimepiride (1-6 mg/day). Baseline carotid IMT was 0.949 ± 0.149mm in the pioglitazone group and 0.924 ± 0.150mm in the glimepiride group (p=n.s.). Carotid IMT was reduced only in the pioglitazone group after 12 weeks (-0.033 ± 0.052mm) vs. -0.002 ± 0.047mm in the glimepiride-treated patients (p = 0.0002 between groups) and after 24 weeks of treatment (-0.054 ± 0.059mm vs. -0.011 ± 0.058mm, respectively, p < 0.0001 between groups). In addition, insulin resistance was significantly improved in the pioglitazone group (-2.21 ± 3.40 vs. -0.27 ± 3.30, p < 0.0001 between groups). Changes in IMT correlated with improvement in insulin resistance (r=0.29, p<0.001) and were independent from the improvement in metabolic control.
The population included 66 females and 107 males with type 2 diabetes aged 62.6 +/- 1 7.9 years, with a mean body mass index (BMI) of 31.8 (generally classified as obese). Both treatments were generally well tolerated.
Kate Sullivan | EurekAlert!
Live probiotics can re-balance the gut microbiome and modify immune system response
20.11.2018 | Symprove
Purdue cancer identity technology makes it easier to find a tumor's 'address'
16.11.2018 | Purdue University
Max Planck researchers revel the nano-structure of molecular trains and the reason for smooth transport in cellular antennas.
Moving around, sensing the extracellular environment, and signaling to other cells are important for a cell to function properly. Responsible for those tasks...
Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
Magnetic reconnection has remained a bit of a mystery to scientists. They know it exists and have documented the effects that the energy explosions can...
Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
Cultivating human cells in the Petri dish is not a big challenge today. Producing artificial tissue, however, permeated by fine blood vessels, is a much more...
Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
19.11.2018 | Event News
09.11.2018 | Event News
06.11.2018 | Event News
20.11.2018 | Life Sciences
20.11.2018 | Life Sciences
20.11.2018 | Physics and Astronomy