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Insulin Resistance Is a Risk Factor for Silent Lacunar Infarction Clinical Sciences
This study aims to investigate the association between insulin resistance (IR) and silent lacunar infarction (SLI) in healthy adults.Methods—We recruited 2326 healthy Korean adults who took health checkups, including a brain magnetic resonance imaging. SLI was defined as an infarction measuring 0.3 to 1.5 cm in diameter that was localized in the territory of perforating branches of cerebral arteries, as seen in the brain magnetic resonance imaging. The homeostasis model assessment–estimated insulin resistance index was used for IR estimation, and the cutoff value for its diagnosis for Koreans was 2.56.Results—The mea...
Source: Stroke - November 27, 2016 Category: Neurology Authors: Ji Eun Lee, Dong Wook Shin, Jae Moon Yun, Sang Hyuck Kim, You-Seon Nam, BeLong Cho, Jae-Sung Lim, Han-Yeong Jeong, Hyung-Min Kwon, Jin-Ho Park Tags: Cerebrovascular Disease/Stroke Original Contributions Source Type: research

Obesity, Insulin Resistance, and Incident Small Vessel Disease on Magnetic Resonance Imaging: Atherosclerosis Risk in Communities Study Clinical Sciences
Conclusions— The IR score and central obesity are associated with incident lacunar disease but not WMH progression in individuals. Central obesity and IR may be important risk factors to target to prevent lacunar disease.
Source: Stroke - October 26, 2015 Category: Neurology Authors: Dearborn, J. L., Schneider, A. L. C., Sharrett, A. R., Mosley, T. H., Bezerra, D. C., Knopman, D. S., Selvin, E., Jack, C. R., Coker, L. H., Alonso, A., Wagenknecht, L. E., Windham, B. G., Gottesman, R. F. Tags: Glucose intolerance, CT and MRI, Cerebral Lacunes, Epidemiology Clinical Sciences Source Type: research

Imaging of a Clinically Relevant Stroke Model: Glucose Hypermetabolism Revisited Basic Sciences
Conclusions— The increased uptake of [2-18F]-2-fluoro-2-deoxy-d-glucose in cerebral ischemia most likely reflects hypermetabolism of glucose meeting increased energy needs of ischemic and hypoperfused brain tissue, and it occurs under both anaerobic and aerobic conditions measured by local lactate production. Infarct-related systemic hyperglycemia could serve to facilitate glucose supply to the ischemic brain. Glycemic control by insulin treatment could negatively influence this mechanism.
Source: Stroke - February 23, 2015 Category: Neurology Authors: Arnberg, F., Grafstrom, J., Lundberg, J., Nikkhou-Aski, S., Little, P., Damberg, P., Mitsios, N., Mulder, J., Lu, L., Soderman, M., Stone-Elander, S., Holmin, S. Tags: Acute Stroke Syndromes, Brain Circulation and Metabolism Basic Sciences Source Type: research