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Progress in neural plasticity

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Science China(Life Sciences) 2010年第3期53卷 322-329页

作者： POO Mu-Ming Institute of Neuroscience State Key Laboratory of NeuroscienceShanghai Institutes for Biological SciencesChinese Academy of Sciences

One of the properties of the nervous system is the use-dependent plasticity of neural circuits.The structure and function of neural circuits are susceptible to changes induced by prior neuronal activity,as reflected by short-and long-term modifications of synaptic efficacy and neuronal excitability.Regarded as the most attractive cellular mechanism underlying higher cognitive functions such as learning and memory,activity-dependent synaptic plasticity has been in the spotlight of modern neuroscience since 1973 when activity-induced long-term potentiation(LTP) of hippocampal synapses was first discovered.Over the last 10 years,Chinese neuroscientists have made notable contributions to the study of the cellular and molecular mechanisms of synaptic plasticity,as well as of the plasticity beyond synapses,including activity-dependent changes in intrinsic neuronal excitability,dendritic integration functions,neuron-glia signaling,and neural network activity.This work highlight some of these significant findings.

关键词： long-term plasticity synaptic transmission intrinsic excitability dendritic integration neuron-glia signaling neurologi-cal disease

Progress in glial cell studies in some laboratories in China

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Science China(Life Sciences) 2010年第3期53卷 330-337页

作者： DUAN ShuMin Institute of Neuroscience,State Key Laboratory of Neuroscience,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences,Shanghai China,200031 Institute of Neuroscience State Key Laboratory of Neuroscience Shanghai Institutes for Biological Sciences Chinese Academy of Sciences Shanghai China

glial cells in the central nervous system(CNS) consist of a heterogeneous population of cell types,each characterized by distinct morphological features,physiological properties,and specific markers.In contrast to the previous view that glial cells were passive elements in the brain,accumulating evidence suggests that glial cells are active participants in various brain functions and brain disorders.This review summarizes recent progress of glial cell studies from several groups in China,ranging from studies about the mechanisms of neuron-glia crosstalking to investigations on the roles of glial cells in various CNS disorders.

关键词： neuron-glia interaction ATP plasticity pain ischemia neural injury and repair

INTERNALIZATION OF GAP JUNCTIONS BETWEEN neuron AND gliaL CELL AND FORMATION OF ANNULAR LAMELLAR BODIES IN CHINESE LEECH Whitmania pigra

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Science China Chemistry 1991年第7期34卷 840-849页

作者：朱丽霞张人骥 Department of Biology Peking University Beijing 100871 PRC

This paper reveals the formation of annular lamellar body (ALB) in the ganglion of leech by means of in situ fixation and the lanthanum nitrate tracer technique. This formation involves both wrapping and internalization of the gap junctions between glial processes themselves, as well as between neuron and glial process. The results indicate that there is probably an active process of internalization of membrane structures involving gap junctions between neuron and glial cell in the central nervous system in leech. The functions of ALB are discussed.

关键词： leech gap junction of neuron-glia internalization annular lamellar body (ALB) trophospongium.