کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9416134 | 1614330 | 2005 | 6 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Metabolic changes in rat striatum following convulsive seizures
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کلمات کلیدی
Electroshock - الکتروشوکEpilepsy - بیماری صرعsub-cutaneous - زیر پوستیEpilepsy: human studies and animal models - صرع: مطالعات انسانی و مدل های حیوانیbasal ganglia - عقدههای قاعدهایLactate - لاکتاتMetabolism - متابولیسم Brain metabolism and blood flow - متابولیسم مغزی و جریان خونmicrodialysis - میکرو دیالیزPyruvate - پیرواتGlucose - گلوکزGlycolysis - گلیکولیز یا قندکافت
موضوعات مرتبط
علوم زیستی و بیوفناوری
علم عصب شناسی
علوم اعصاب (عمومی)
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چکیده انگلیسی
Generalized convulsive seizures increase glucose utilization within the brain but their impact on metabolism is not well known. The striatum receives excitatory input from widespread sources in the brain and could potentially reflect energy depletion in the brain resulting from generalized seizures. We utilized multiprobe microdialysis in freely moving rats subjected to maximal electroshock to simultaneously measure glucose, lactate, and pyruvate levels in the interstitial space within striatum and in peripheral subcutaneous tissue. A brief convulsive seizure was associated with marked changes in striatal and peripheral metabolism during the post-ictal state that lasted up to 1 h. There were significant central and peripheral elevations of glucose, pyruvate, and lactate, reflecting increased glucose metabolism. Interestingly, the lactate-to-pyruvate ratio increased significantly in the periphery but remained unchanged in the striatum. Thus, there appears to be brain mechanisms that maintain adequate energy sources and prevent anaerobic shift during the post-ictal state.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Brain Research - Volume 1050, Issues 1â2, 19 July 2005, Pages 124-129
Journal: Brain Research - Volume 1050, Issues 1â2, 19 July 2005, Pages 124-129
نویسندگان
Olivier Darbin, Jean Jacque Risso, Emily Carre, Michel Lonjon, Dean K. Naritoku,