- Relation between Cerebral Arterial Pulsatility and Insulin Resistance in Type 2 Diabetic Patients.
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Jong Suk Park, Chul Sik Kim, Hai Jin Kim, Ji Sun Nam, Tae Woong Noh, Chul Woo Ahn, Kyung Yul Lee, Bong Soo Cha, Sung Kil Lim, Kyung Rae Kim, Hyun Chul Lee
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Korean Diabetes J. 2006;30(5):347-354. Published online September 1, 2006
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DOI: https://doi.org/10.4093/jkda.2006.30.5.347
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- BACKGROUND
Diabetic patients have a 3-fold risk for cerebrovascular disease compared with nondiabetic controls. The aim of the present study was to investigate the association of insulin resistance with pulsatility index (PI) of cerebral arteries in type 2 diabetic patients. METHODS: We compared a group of 90 patients with stroke free, type 2 diabetes and an age- and sex-matched control group of 45 healthy subjects without diabetes. Diabetic patients were divided into 3 groups according to the ISI (insulin sensitivity index). We evaluated PI of the middle cerebral artery (MCA) by transcranial Doppler ultrasonography (TCD) and insulin resistance determined by short insulin tolerance test. RESULTS: The PI was significantly higher in diabetic patients than that in healthy controls (P < 0.05), and also higher in patients with insulin resistance than that in insulin sensitive diabetic patients (P < 0.05). The PI of the MCA was significantly correlated with age (r= 0.465, P < 0.01), duration of diabetes (r = 0.264, P = 0.025), hypertension (r = 0.285, P = 0.015) and inversely correlated with insulin resistance (r = -0.359, P = 0.030).Multiple regression analysis was performed with PI as a dependent variable and insulin resistance as an independent variable along with known clinical risk factors. Age (beta = 0.393, P < 0.01) and duration of diabetes (beta = 0.274, P = 0.043) exhibited a significant independent contribution to PI. CONCLUSIONS: PI might be useful markers of the detection of diabetic cerebrovascular changes and insulin resistance, measured with short insulin tolerance test, showed correlations with PI, but age and duration of diabetes contributed independently to the variability in the PI.
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Citations
Citations to this article as recorded by  - Factors Affecting Basilar Artery Pulsatility Index on Transcranial Doppler
Ho Tae Jeong, Dae Sik Kim, Kun Woo Kang, Yun Teak Nam, Ji Eun Oh, Eun Kyung Cho
The Korean Journal of Clinical Laboratory Science.2018; 50(4): 477. CrossRef
- Effects of Pioglitazone on Cerebral Hemodynamics in Patients of Type 2 Diabetes.
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Jong Suk Park, You Jung Lee, Chul Sik Kim, Hai Jin Kim, Jina Park, Chul Woo Ahn, Kyung Yul Lee, Hyeong Jin Kim, Young Jun Won, Hun Ju Ha, Hae Sun Kwak, Bong Soo Cha, Sung Kil Lim, Kyung Rae Kim, Hyun Chul Lee
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Korean Diabetes J. 2006;30(2):96-103. Published online March 1, 2006
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DOI: https://doi.org/10.4093/jkda.2006.30.2.96
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Abstract
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- 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
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