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Introduction to Neural Plasticity Mechanism

Journal of Behavioral and Brain Science 2017年第2期7卷 41-49页

作者： Bogdan Feliks Kania danuta wronska Dorota Zieba Veterinary Institute University Center for Veterinary Medicine Jagiellonian University&Agriculture UniversityHugon Kollataj Agricultural University in CracowCracowPoland Department of Physiology and Endocrinology of Animals Faculty of Animal SciencesHugon Kollataj Agricultural University in CracowCracowPoland Department of Animal Biotechnology Faculty of Animal SciencesHugon Kollataj Agricultural University in Cracowul.Redzina1BCracowPoland

In researches that examine neuroplasticity, many studies that are performed directly on isolated neurons in the pyramidal cells of CA1 area (CA1) and slices of the hippocampus indicate that changes occur at the molecular and cellular levels during long-term synaptic potentiation (LTP), and these changes are dependent on N-methyl-D-aspartate (NMDA) acid receptors and/or purinergic receptors. Electrophysiological studies and the chemical induction of LTP of synaptic neurotransmissions provide key evidence that LTP is dependent on the volume of Ca2+ influx through postsynaptic NMDA receptors, in addition to the subsequent activation and autophosphorylation of Ca2+/calmodulin-dependent protein kinase II (CaMKII) and the increase in the density of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptors on postsynaptic neuronal membranes. The primary peculiarity of LTP in the central nervous system (CNS) excitatory synapses is the synthesis of additional AMPA receptors in the postsynaptic elements. Furthermore, the proteolysis of the extracellular matrix (ECM) has an important role in the synaptic neuroplasticity of the CNS. Proteases from the serine family and metalloproteinases of the extracellular matrix are localized within the synapses and are released into the extracellular space in proportion to the degree of neuronal excitation. These enzymes cause changes in the morphology, shape and size, as well as the overall number of synapses and synthesize new synaptic connections. The proteinases also change the function of receptors, and consequently, the secretions of neurotransmitters from the presynaptic elements are strengthened or weakened.

关键词： Neuroplasticity Heterosynaptic Metaplasticity Subjects

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Central Glutamatergic-Purinergic System Importance in Brain/Neural Plasticity

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Journal of Behavioral and Brain Science 2017年第7期7卷 259-272页

作者： Bogdan Feliks Kania danuta wronska Dorota Zieba Veterinary Institute University Center for Veterinary MedicineJagiellonian University&Agriculture UniversityCracowPoland Department of Physiology and Endocrinology of Animals Faculty of Animal SciencesHugon Kollataj Agricultural University in CracowCracowPoland Department of Animal Biotechnology Faculty of Animal SciencesHugon Kollataj Agricultural University in CracowCracowPoland

The proteolysis of the extracellular matrix plays a key role in the synaptic neuroplasticity of the central nervous system (CNS), which results in learning and memory. Proteases from the serine family and metalloproteinases of the extracellular matrix are localized within the synapses and are released into the extracellular space in proportion to the degree of neuronal excitation. These enzymes cause changes in the morphology, shape and size, and the overall number of synapses and synthesize new synaptic connections. The proteinase also changes the function of receptors, and consequently, the secretion of neurotransmitter/neuromodulator from the presynaptic glutamatergic and/or purinergic elements are either strengthened or weakened. Neuroglia involved in homeostasis, melanin synthesis and defense of the brain contain different combinations of purinergic receptors, which contributes to many neurotransmitters. This review summarizes a concept of brain plasticity, the role of ATP and P2 receptors interaction with glutamatergic system during plasticity of the brain in the one hand and after physical exercise in the other, which may be triggering phenomena facilitative synaptic plasticity as well as potentiates an personal efficiency to react to biobehavioral adaptation and disorders.

关键词： Glutamatergic/Purinergic System Neuroplasticity Physical Exercise Neuroglia Dependences

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The Selective Serotonin Reuptake Inhibitor-Sertraline Diminishes Conspecific Aggression in Male Fighting Betta splendens Fish

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Journal of Behavioral and Brain Science（行为与脑科学期刊） 2015年第13期 578-585页

作者： Bogdam Feliks Kania danuta wronska

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