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Electrophysiological Analysis of Human Neocortex In Vitro: Experimental Techniques and Methodological Approaches

Published online by Cambridge University Press:  18 September 2015

M. Avoli*
Affiliation:
Montreal Neurological Institute and Department of Neurology and Neurosurgery, McGill University, Montreal
G.G.C. Hwa
Affiliation:
Montreal Neurological Institute and Department of Neurology and Neurosurgery, McGill University, Montreal
G. Kostopoulos
Affiliation:
Montreal Neurological Institute and Department of Neurology and Neurosurgery, McGill University, Montreal
A. Olivier
Affiliation:
Montreal Neurological Institute and Department of Neurology and Neurosurgery, McGill University, Montreal
J.-G. Villemure
Affiliation:
Montreal Neurological Institute and Department of Neurology and Neurosurgery, McGill University, Montreal
*
Room 804, Montreal Neurological Institute, 3801 University, Montreal, Quebec, Canada H3A 2B4
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Abstract:

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In this review we summarize a number of technical and methodological approaches that have been used in our laboratory to study human brain slices maintained in vitro. The findings obtained in the course of these studies appear to be relevant in establishing he mechanisms that underlie physiological phenomena of the human brain such as synaptic plasticity or responses to neuroactive drugs. Moreover, these data are important for understanding certain fundamental mechanisms of epilepsy. In this respect, however, we aution that the mechanisms that apply to different forms of clinical epilepsy might be ifficult to find given the variability present in the pathogenesis of human epilepsy.

Type
Research Article
Copyright
Copyright © Canadian Neurological Sciences Federation 1991

References

REFERENCES

1.Kato, H, Ito, Z, Matsuoka, S, et al. Electrical activities of neurons in the sliced human cortex in vitro. Electroenceph Clin Neurophysiol 1973; 35: 457462.CrossRefGoogle ScholarPubMed
2.Schwartzkroin, PA, Prince, DA. Microphysiology of human cerebral cortex studied in vitro. Brain Res 1976; 115: 497500.CrossRefGoogle ScholarPubMed
3.Schwartzkroin, PA, Turner, DA, Knowles, WD, et al. Studies of human and monkey “epileptic” neocortex in the in vitro slice preparation. Ann Neurol 1983; 13: 249257.CrossRefGoogle ScholarPubMed
4.Avoli, M, Olivier, A. Electrophysiological properties of synaptic responses in the deep layers of the human epileptogenic neocortex in vitro. J Neurophysiol 1989; 61: 589606.CrossRefGoogle ScholarPubMed
5.Avoli, M, Louvel, J, Pumain, R, et al. Seizure like discharges induced by lowering [Mg2+]0 in the human epileptogenic neocortex maintained “in vitro”. Brain Res 1987; 417: 199203.CrossRefGoogle Scholar
6.Avoli, M, Perreault, P, Olivier, A, et al. 4-aminopyridine induces a long-lasting depolarizing GABA-ergic potential in human neo-cortical and hippocampal neurons maintained “in vitro”. Neurosci Lett 1988; 94: 327331.CrossRefGoogle Scholar
7.Avoli, M, Olivier, A. Bursting in human epileptogenic neocortex is depressed by an N-methyl-D-aspartate antagonist. Neurosci Lett 1987; 76: 249254.CrossRefGoogle ScholarPubMed
8.Kostopoulos, G, Drapeau, C, Avoli, M, et al. Endogenous adenosine can reduce epileptiform activity in the human epileptogenic cortex maintained in vitro. Neurosci Lett 1989; 106: 119124.CrossRefGoogle ScholarPubMed
9.Avoli, M. Inhibitory potentials in neurons of the deep layers of the in vitro neocortical slice. Brain Res 1986; 370: 165170.CrossRefGoogle ScholarPubMed
10.Pumain, R, Heinemann, U. Stimulus- and amino acid-induced calcium and potassium changes in rat neocortex. J Neurophysiol 1984; 53: 116.CrossRefGoogle Scholar
11.Sherwin, AL. Guide to neurochemical analysis of surgical speci-mens of human brain. Epilepsy Res 1988; 2: 281288.CrossRefGoogle Scholar
12.Wyler, AR, Ward, AA Jr. Neuronal firing patterns from epilepto-genic foci of monkey and human. In: Delgado-Escueta, A, et al., eds. Advances in Neurology. New York: Raven Press 1986, vol. 44: 967989.Google Scholar
13.Prince, DA, Connors, BW. Mechanisms of interjetai epileptogenesis. In: Delgado-Escueta, A, et al., eds. Advances in Neurology. New York: Raven Press 1986, vol. 44: 275299.Google Scholar
14.Prince, DA, Wong, RKS. Human epileptic neurons studied in vitro. Brain Res 1981; 210: 323333.CrossRefGoogle ScholarPubMed
15.Ayala, GF, Dichter, M, Gumnit, RJ, et al. Genesis of epileptic interictal spikes. New knowledge of cortical feedback systems suggests a neurophysiological explanation of brief paroxysms. Brain Res 1973; 52: 117.CrossRefGoogle ScholarPubMed
16.Mody, I, Heinemann, U. NMDA receptors of dentate gyrus granule cells participate in synaptic transmission following kindling. Nature Lond 1987; 326: 701704.CrossRefGoogle ScholarPubMed
17.Schwindt, PC, Spain, WJ, Foehring, RC, et al. Multiple potassium conductances and their functions in neurons from cat sensorimotor cortex in vitro. J Neurophysiol 1988; 59: 424449.CrossRefGoogle ScholarPubMed
18.Hotson, JR, Prince, DA. A calcium-activated hyperpolarization follows repetitive firing in hippocampal neurons. J Neurophysiol 1980; 43: 409419.CrossRefGoogle ScholarPubMed
19.McCormick, DA. GABA as an inhibitory neurotransmitter in human cerebral cortex. J Neurophysiol 1989; 62: 10181027.CrossRefGoogle ScholarPubMed
20.Schwartzkroin, PA, Haglund, MM. Spontaneous rhythmic synchronous activity in epileptic human and normal monkey temporal lobe. Epilepsia 1986; 27: 523533.CrossRefGoogle ScholarPubMed