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Titolo:
DENDRITIC MORPHOLOGY IN EPILEPTOGENIC CORTEX FROM TRPE PATIENTS, REVEALED BY INTRACELLULAR LUCIFER-YELLOW MICROINJECTION AND CONFOCAL LASER-SCANNING MICROSCOPY
Autore:
BELICHENKO PV; SOURANDER P; MALMGREN K; NORDBORG C; HEDSTROM A; VONESSEN C; RYDENHAG B; LINDSTROM S; UVEBRANT P; DAHLSTROM A;
Indirizzi:
GOTHENBURG UNIV,INST NEUROBIOL,DEPT ANAT & CELL BIOL,MEDICINAREGATAN 3-5 S-41390 GOTHENBURG SWEDEN GOTHENBURG UNIV,INST NEUROBIOL,DEPT ANAT & CELL BIOL S-41390 GOTHENBURG SWEDEN RUSSIAN ACAD MED SCI,INST BRAIN RES MOSCOW RUSSIA GOTHENBURG UNIV,FAC MED,DEPT PATHOL,DIV NEUROPATHOL GOTHENBURG SWEDEN GOTHENBURG UNIV,FAC MED,DEPT NEUROL GOTHENBURG SWEDEN GOTHENBURG UNIV,FAC MED,DEPT NEUROSURG GOTHENBURG SWEDEN GOTHENBURG UNIV,FAC MED,DEPT NEUROPHYSIOL GOTHENBURG SWEDEN GOTHENBURG UNIV,FAC MED,DEPT CLIN NEUROPHYSIOL GOTHENBURG SWEDEN GOTHENBURG UNIV,FAC MED,DEPT PEDIAT GOTHENBURG SWEDEN
Titolo Testata:
Epilepsy research
fascicolo: 3, volume: 18, anno: 1994,
pagine: 233 - 247
SICI:
0920-1211(1994)18:3<233:DMIECF>2.0.ZU;2-D
Fonte:
ISI
Lingua:
ENG
Soggetto:
FOCAL CORTICAL DYSPLASIA; CEREBRAL-CORTEX; EPILEPSY; NEOCORTEX; NEURONS; GOLGI;
Keywords:
MICRODYSGENESIS; DENDRITIC MORPHOLOGY; INTRACELLULAR STAINING; LUCIFER YELLOW; CONFOCAL MICROSCOPY;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
29
Recensione:
Indirizzi per estratti:
Citazione:
P.V. Belichenko et al., "DENDRITIC MORPHOLOGY IN EPILEPTOGENIC CORTEX FROM TRPE PATIENTS, REVEALED BY INTRACELLULAR LUCIFER-YELLOW MICROINJECTION AND CONFOCAL LASER-SCANNING MICROSCOPY", Epilepsy research, 18(3), 1994, pp. 233-247

Abstract

Biopsy material was obtained from cortical epileptogenic zones (eighttemporal, one occipital, one parietal and one frontal) of eleven patients aged 1.5-47 years with therapy-resistant partial epilepsy (TRPE) undergoing epilepsy surgery. Control autopsy material (two temporal, two occipital, one parietal and one frontal) was removed from six neurologically healthy cases within 6-10 hours postmortem delay. In each specimen, 100-300 pyramidal and nonpyramidal neurons were visualized by intracellular Lucifer Yellow microinjection. Single neurons were imaged using CLSM generated serial optical sections; 2-D reconstruction of each neuron was made using z-projection of serial optical images, and 3-D reconstructions and rotations were computerized. Neuronal maps from TRPE biopsies, compared to control autopsies, show markedly increased numbers of dendritic abnormalities of single pyramidal and non-pyramidal neurons in layers I, II-III, V-VII, and in the subcortical white matter. The abnormalities include: (1) increased number of non-pyramidal cells in layer I; (2) many pyramidal cells with two or three dendrites originating apically, rather than one single apical dendrite, in layers II-III; (3) atypical orientation of oblique apical and basal dendrites in pyramidal neurons of layers II-VII; (4) increased number of atypical 'dinosaur-like' and fusiform cells in layers V-VII; (5) numerous neurons in the white matter. These abnormalities may be etiological in cases with early onset, and predisposing in cases with late onset.

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Documento generato il 06/07/20 alle ore 05:03:40