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[Natural neurotoxins as pharmacological tools for the study of the central nervous system]. 1998

J M Martínez-Martos, and M J Ramírez-Expósito, and C Iribar-Ibabe, and J M Peinado-Herreros
Facultad de Ciencias Experimentales, Universidad de Jaén, España. jmmartos@ujaen.es

BACKGROUND Natural venoms produced by different species of animals are very useful to distinguish between the different types and subtypes of ionic channels and neurotransmitters receptors involved in the information processing in the nervous system. METHODS Natural venoms permit distinction between the different types and subtypes of Na+, K+ and Ca2+ channels. These differences are based on their structure, physical and chemical characteristics and function with regard to ionic transport and the neurotransmitters release. CONCLUSIONS The use of different molecular biology techniques makes it possible to develop new synthetic toxins, by means of which new perspectives appear for the study and treatment of different neurological disease.

UI MeSH Term Description Entries
D009498 Neurotoxins Toxic substances from microorganisms, plants or animals that interfere with the functions of the nervous system. Most venoms contain neurotoxic substances. Myotoxins are included in this concept. Alpha-Neurotoxin,Excitatory Neurotoxin,Excitotoxins,Myotoxin,Myotoxins,Neurotoxin,Alpha-Neurotoxins,Excitatory Neurotoxins,Excitotoxin,Alpha Neurotoxin,Alpha Neurotoxins,Neurotoxin, Excitatory,Neurotoxins, Excitatory
D001921 Brain The part of CENTRAL NERVOUS SYSTEM that is contained within the skull (CRANIUM). Arising from the NEURAL TUBE, the embryonic brain is comprised of three major parts including PROSENCEPHALON (the forebrain); MESENCEPHALON (the midbrain); and RHOMBENCEPHALON (the hindbrain). The developed brain consists of CEREBRUM; CEREBELLUM; and other structures in the BRAIN STEM. Encephalon
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D015220 Calcium Channels Voltage-dependent cell membrane glycoproteins selectively permeable to calcium ions. They are categorized as L-, T-, N-, P-, Q-, and R-types based on the activation and inactivation kinetics, ion specificity, and sensitivity to drugs and toxins. The L- and T-types are present throughout the cardiovascular and central nervous systems and the N-, P-, Q-, & R-types are located in neuronal tissue. Ion Channels, Calcium,Receptors, Calcium Channel Blocker,Voltage-Dependent Calcium Channel,Calcium Channel,Calcium Channel Antagonist Receptor,Calcium Channel Antagonist Receptors,Calcium Channel Blocker Receptor,Calcium Channel Blocker Receptors,Ion Channel, Calcium,Receptors, Calcium Channel Antagonist,VDCC,Voltage-Dependent Calcium Channels,Calcium Channel, Voltage-Dependent,Calcium Channels, Voltage-Dependent,Calcium Ion Channel,Calcium Ion Channels,Channel, Voltage-Dependent Calcium,Channels, Voltage-Dependent Calcium,Voltage Dependent Calcium Channel,Voltage Dependent Calcium Channels
D015221 Potassium Channels Cell membrane glycoproteins that are selectively permeable to potassium ions. At least eight major groups of K channels exist and they are made up of dozens of different subunits. Ion Channels, Potassium,Ion Channel, Potassium,Potassium Channel,Potassium Ion Channels,Channel, Potassium,Channel, Potassium Ion,Channels, Potassium,Channels, Potassium Ion,Potassium Ion Channel
D015222 Sodium Channels Ion channels that specifically allow the passage of SODIUM ions. A variety of specific sodium channel subtypes are involved in serving specialized functions such as neuronal signaling, CARDIAC MUSCLE contraction, and KIDNEY function. Ion Channels, Sodium,Ion Channel, Sodium,Sodium Channel,Sodium Ion Channels,Channel, Sodium,Channel, Sodium Ion,Channels, Sodium,Channels, Sodium Ion,Sodium Ion Channel

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