J Korean Diabetes Assoc.  2006 Mar;30(2):96-103. 10.4093/jkda.2006.30.2.96.

Effects of Pioglitazone on Cerebral Hemodynamics in Patients of Type 2 Diabetes

Affiliations
  • 1Department of Internal Medicine, Yonsei University College of Medicine, Seoul, Korea.
  • 2Ewha Graduate School of Clinical Health Science, Seoul, Korea.
  • 3Department of Neurology, Yonsei University College of Medicine, Seoul, Korea.
  • 4Department of Internal Medicine, Kwandong University College of Medicine, Gangneung, Korea.

Abstract

BACKGROUND
Atherosclerosis is one of the major causes of morbidity and mortality in patients with type 2 diabetes and pioglitazone has been reported to have antiatherogenic effect. The aim of this study was to investigate whether pioglitazone affects carotid intima-media thickness (IMT) and pulsatility index (PI) in type 2 diabetic patients.
METHODS
A total of 40 type 2 diabetic patients were included and divided into two groups: the pioglitazone-treated group (pioglitazone 15 mg/day with gliclazide 80~320 mg/day for 12 weeks) (n = 20) and control group (gliclazide 80~320 mg/day for 12 weeks) (n = 20). The changes in lipid profile, insulin resistance, IMT, and PI were monitored to determine that pioglitazone improves cerebrovascular blood flow.
RESULTS
The pioglitazone treatment significantly increased HDL-C, reduced triglyceride, insulin resistance and PI. IMT tended to decrease but the change was not significant. This study revealed that treatment with pioglitazone was associated with the improvement of cerebrovascular blood flow.
CONCLUSIONS
Pioglitazone appears to be effective for the improvement of cerebrovascular blood flow in type 2 diabetic patients

Keyword

IMT (intima-media thickness); PI (pulsatility index); Pioglitazone; Type 2 diabetes

MeSH Terms

Atherosclerosis
Carotid Intima-Media Thickness
Gliclazide
Hemodynamics*
Humans
Insulin Resistance
Mortality
Triglycerides
Gliclazide

Figure

  • Fig. 1 BA PI and mean MCA PI are decreased significantly in pioglitazone treated group. BA, basilar artery MCA, middle cerebral artery; PI, pulsatility index. *P < 0.05 before vs. after treatment in each group.


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