EEG in anaesthetized rats. 1989

M K Sim, and M E Chua
Department of Pharmacology, Faculty of Medicine, National University of Singapore.

The constancy of rat EEG during surgical anaesthesia induced by phenobarbital, cholorose, paraldehyde, and inactin was investigated. The results showed that intraindividual variations and spontaneity of EEG were not abolished in the anaestheized animals. However, at the higher of the two doses used, the EEG was less variable. Our findings thus indicate that in the study of drug actions on the EEG of anaesthetized animals, the results obtained not only represent the interaction of the anaesthetic and the drug on the animal EEG but is also a reflection of the dosage of the anaesthetic employed.

UI MeSH Term Description Entries
D010242 Paraldehyde A hypnotic and sedative with anticonvulsant effects. However, because of the hazards associated with its administration, its tendency to react with plastic, and the risks associated with its deterioration, it has largely been superseded by other agents. It is still occasionally used to control status epilepticus resistant to conventional treatment. (From Martindale, The Extra Pharmacopoeia, 30th ed, p608-9)
D010634 Phenobarbital A barbituric acid derivative that acts as a nonselective central nervous system depressant. It potentiates GAMMA-AMINOBUTYRIC ACID action on GABA-A RECEPTORS, and modulates chloride currents through receptor channels. It also inhibits glutamate induced depolarizations. Phenemal,Phenobarbitone,Phenylbarbital,Gardenal,Hysteps,Luminal,Phenobarbital Sodium,Phenobarbital, Monosodium Salt,Phenylethylbarbituric Acid,Acid, Phenylethylbarbituric,Monosodium Salt Phenobarbital,Sodium, Phenobarbital
D011919 Rats, Inbred Strains Genetically identical individuals developed from brother and sister matings which have been carried out for twenty or more generations or by parent x offspring matings carried out with certain restrictions. This also includes animals with a long history of closed colony breeding. August Rats,Inbred Rat Strains,Inbred Strain of Rat,Inbred Strain of Rats,Inbred Strains of Rats,Rat, Inbred Strain,August Rat,Inbred Rat Strain,Inbred Strain Rat,Inbred Strain Rats,Inbred Strains Rat,Inbred Strains Rats,Rat Inbred Strain,Rat Inbred Strains,Rat Strain, Inbred,Rat Strains, Inbred,Rat, August,Rat, Inbred Strains,Rats Inbred Strain,Rats Inbred Strains,Rats, August,Rats, Inbred Strain,Strain Rat, Inbred,Strain Rats, Inbred,Strain, Inbred Rat,Strains, Inbred Rat
D002698 Chloralose A derivative of CHLORAL HYDRATE that was used as a sedative but has been replaced by safer and more effective drugs. Its most common use is as a general anesthetic in animal experiments. Anhydroglucochloral,Glucochloral,Glucochloralose,alpha-Chloralose,beta-Chloralose,alpha Chloralose,beta Chloralose
D004569 Electroencephalography Recording of electric currents developed in the brain by means of electrodes applied to the scalp, to the surface of the brain, or placed within the substance of the brain. EEG,Electroencephalogram,Electroencephalograms
D000768 Anesthesia, General Procedure in which patients are induced into an unconscious state through use of various medications so that they do not feel pain during surgery. Anesthesias, General,General Anesthesia,General Anesthesias
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D013874 Thiopental A barbiturate that is administered intravenously for the induction of general anesthesia or for the production of complete anesthesia of short duration. Penthiobarbital,Thiomebumal,Thiopentobarbital,Bomathal,Nesdonal,Pentothal,Pentothal Sodico,Sodipental,Thionembutal,Thiopental Nycomed,Thiopental Sodium,Thiopentone,Tiobarbital Braun,Trapanal
D051381 Rats The common name for the genus Rattus. Rattus,Rats, Laboratory,Rats, Norway,Rattus norvegicus,Laboratory Rat,Laboratory Rats,Norway Rat,Norway Rats,Rat,Rat, Laboratory,Rat, Norway,norvegicus, Rattus

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