Biomaterial Database

[Prolongation of sleep following creation of a generator of pathologically enhanced excitation in the orbital cortex]. 1977

G N Kryzhanovskiĭ, and R F Makul'kin, and A A Gun

Acute experiments on cats showed that injection of tetanus toxin into the orbital cortex (which destroys various types of inhibition) resulted in the formation of a local generator of pathologically enhanced excitation in this cortex area. Chronic experiments showed that cats with such a generator in the orbital cortex developed pathological changes of sleep, expressed in reduction of the duration of wakefulness and development of the slow-wave and paradoxical sleep phases being, retained. The results of this investigation confirm the view on the participation of the orbitofrontal cortex in sleep induction. They are in favour of the general conception on the role of the determinant structure in the nervous system activity and the theory of the generator mechanisms of the neuropathological syndromes characterized by the hyperactivity of the system.

UI	MeSH Term	Description	Entries
D002415	Cats	The domestic cat, Felis catus, of the carnivore family FELIDAE, comprising over 30 different breeds. The domestic cat is descended primarily from the wild cat of Africa and extreme southwestern Asia. Though probably present in towns in Palestine as long ago as 7000 years, actual domestication occurred in Egypt about 4000 years ago. (From Walker's Mammals of the World, 6th ed, p801)	Felis catus,Felis domesticus,Domestic Cats,Felis domestica,Felis sylvestris catus,Cat,Cat, Domestic,Cats, Domestic,Domestic Cat
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
D005625	Frontal Lobe	The part of the cerebral hemisphere anterior to the central sulcus, and anterior and superior to the lateral sulcus.	Brodmann Area 8,Brodmann's Area 8,Frontal Cortex,Frontal Eye Fields,Lobus Frontalis,Supplementary Eye Field,Area 8, Brodmann,Area 8, Brodmann's,Brodmanns Area 8,Cortex, Frontal,Eye Field, Frontal,Eye Field, Supplementary,Eye Fields, Frontal,Frontal Cortices,Frontal Eye Field,Frontal Lobes,Lobe, Frontal,Supplementary Eye Fields
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
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
D012893	Sleep Wake Disorders	Abnormal sleep-wake schedule or pattern associated with the CIRCADIAN RHYTHM which affect the length, timing, and/or rigidity of the sleep-wake cycle relative to the day-night cycle.	Sleep Disorders,Long Sleeper Syndrome,Short Sleep Phenotype,Short Sleeper Syndrome,Sleep-Related Neurogenic Tachypnea,Subwakefullness Syndrome,Disorder, Sleep,Disorder, Sleep Wake,Disorders, Sleep,Disorders, Sleep Wake,Long Sleeper Syndromes,Neurogenic Tachypnea, Sleep-Related,Neurogenic Tachypneas, Sleep-Related,Phenotype, Short Sleep,Phenotypes, Short Sleep,Short Sleep Phenotypes,Short Sleeper Syndromes,Sleep Disorder,Sleep Phenotypes, Short,Sleep Related Neurogenic Tachypnea,Sleep Wake Disorder,Sleep-Related Neurogenic Tachypneas,Sleeper Syndrome, Long,Sleeper Syndrome, Short,Sleeper Syndromes, Long,Sleeper Syndromes, Short,Subwakefullness Syndromes,Syndrome, Long Sleeper,Syndrome, Short Sleeper,Syndrome, Subwakefullness,Syndromes, Long Sleeper,Syndromes, Short Sleeper,Syndromes, Subwakefullness,Tachypnea, Sleep-Related Neurogenic,Tachypneas, Sleep-Related Neurogenic,Wake Disorder, Sleep,Wake Disorders, Sleep
D013744	Tetanus Toxin	Protein synthesized by CLOSTRIDIUM TETANI as a single chain of ~150 kDa with 35% sequence identity to BOTULINUM TOXIN that is cleaved to a light and a heavy chain that are linked by a single disulfide bond. Tetanolysin is the hemolytic and tetanospasmin is the neurotoxic principle. The toxin causes disruption of the inhibitory mechanisms of the CNS, thus permitting uncontrolled nervous activity, leading to fatal CONVULSIONS.	Clostridial Neurotoxin,Clostridium tetani Toxin,Tetanus Toxins,Neurotoxin, Clostridial,Toxin, Clostridium tetani,Toxin, Tetanus,Toxins, Tetanus
D013997	Time Factors	Elements of limited time intervals, contributing to particular results or situations.	Time Series,Factor, Time,Time Factor
D014793	Visual Cortex	Area of the OCCIPITAL LOBE concerned with the processing of visual information relayed via VISUAL PATHWAYS.	Area V2,Area V3,Area V4,Area V5,Associative Visual Cortex,Brodmann Area 18,Brodmann Area 19,Brodmann's Area 18,Brodmann's Area 19,Cortical Area V2,Cortical Area V3,Cortical Area V4,Cortical Area V5,Secondary Visual Cortex,Visual Cortex Secondary,Visual Cortex V2,Visual Cortex V3,Visual Cortex V3, V4, V5,Visual Cortex V4,Visual Cortex V5,Visual Cortex, Associative,Visual Motion Area,Extrastriate Cortex,Area 18, Brodmann,Area 18, Brodmann's,Area 19, Brodmann,Area 19, Brodmann's,Area V2, Cortical,Area V3, Cortical,Area V4, Cortical,Area V5, Cortical,Area, Visual Motion,Associative Visual Cortices,Brodmanns Area 18,Brodmanns Area 19,Cortex Secondary, Visual,Cortex V2, Visual,Cortex V3, Visual,Cortex, Associative Visual,Cortex, Extrastriate,Cortex, Secondary Visual,Cortex, Visual,Cortical Area V3s,Extrastriate Cortices,Secondary Visual Cortices,V3, Cortical Area,V3, Visual Cortex,V4, Area,V4, Cortical Area,V5, Area,V5, Cortical Area,V5, Visual Cortex,Visual Cortex Secondaries,Visual Cortex, Secondary,Visual Motion Areas