کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
3052563 | 1579933 | 2010 | 4 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Involvement of GABA in mirror focus: A case report Involvement of GABA in mirror focus: A case report](/preview/png/3052563.png)
SummaryMirror focus (MF) is a cortical epileptogenic lesion that is posited to develop in the contralateral site to a cortical primary focus (PF) by secondary epileptogenic mechanisms. Previous animal evidence supports the implication of γ-aminobutyric acid (GABA) in this phenomenon, but this contention has not yet been substantiated by clinical findings. Here we report for the first time clinical evidence suggesting the involvement of GABAergic cortical transmission in MF pathogenesis, in a 37-year-old man affected by a lesional PF in the right frontal lobe and a homotopic MF in the contralateral hemisphere, triggered by hyperventilation. One year after surgical excision of the PF, the electric activity of the MF remained unchanged, but was accompanied by a significant increase in the density of GABAA/benzodiazepine receptor binding in the left frontal lobe, as measured by 123I-Iomazenil SPECT. These results extend previous evidence on the involvement of GABAergic signaling in MF pathophysiology.
Journal: Epilepsy Research - Volume 90, Issue 3, August 2010, Pages 300–303