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Network interactions between caudate putamen and hippocampus contralateral to the right tetanized corpus callosum in rats / 中国应用生理学杂志
Chinese Journal of Applied Physiology ; (6): 165-169, 2003.
Artigo em Chinês | WPRIM | ID: wpr-339650
ABSTRACT
<p><b>AIM</b>To study the role of epileptic neural networks reestablished in contralateral caudate putamen (CPu)-hippocampus(HPC) by using chronic tetanization of the right corpus callosum (CTRCC).</p><p><b>METHODS</b>Experiments were performed on 50 SD rats under anaesthesia. The left CPu (LCPu) and the left HPC(LHPC) electrographs were synchronously recorded after acute tetanization following CTRCC (60 Hz, 0.4-0.6 mA, 2 s).</p><p><b>RESULTS</b>(1) In contralateralization to the side implanted interconvertible network inhibition between the CPu and the HPC were induced by combinedly using chronic and acute tetanization of the RCC. (2) Electrographic kindling in the LCPu or in the LHPC was recorded after CTRCC. (3) In case the LCPu or the LHPC electrographs were not kindled after CTRCC, hypsarrhythmia in the LCPu and reduced sharp waves in the HPC were induced b y repetitive tetanization of the RCC once again. Primary afterdischarges in the LCPu or in the LHPC electrographs were evoked by combinedly using chronic and acute tetanization of the RCC.</p><p><b>CONCLUSION</b>Pathophysiological neural networks in the CPu and in the HPC might be reestablished in another side of hemispheres by chronic over-activation of the right CC, which is related to epileptogenesis. Abnormal interactions between the two functional neural networks might be involved in formation of secondary epileptic focus.</p>
Assuntos
Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Putamen / Núcleo Caudado / Ratos Sprague-Dawley / Corpo Caloso / Modelos Animais de Doenças / Estimulação Elétrica / Epilepsia / Hipocampo / Rede Nervosa Limite: Animais Idioma: Chinês Revista: Chinese Journal of Applied Physiology Ano de publicação: 2003 Tipo de documento: Artigo

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Texto completo: DisponíveL Índice: WPRIM (Pacífico Ocidental) Assunto principal: Patologia / Putamen / Núcleo Caudado / Ratos Sprague-Dawley / Corpo Caloso / Modelos Animais de Doenças / Estimulação Elétrica / Epilepsia / Hipocampo / Rede Nervosa Limite: Animais Idioma: Chinês Revista: Chinese Journal of Applied Physiology Ano de publicação: 2003 Tipo de documento: Artigo