Hyperphagia and obesity in rats with bilateral ibotenic acid-induced lesions of the ventromedial hypothalamic nucleus. 1987

N Shimizu, and Y Oomura, and C R Plata-Salamán, and M Morimoto

Macro-electrophoretic applications of the cellular neurotoxin ibotenic acid into the ventromedial hypothalamic nucleus (VMH) resulted in hyperphagia and obesity in male rats. Histological examination showed a reduction in the number of neuronal VMH cell bodies with glial proliferation without evidence of non-specific damage. This supports the hypothesis that hyperphagia and obesity after VMH lesions are related to destruction of neurons intrinsic to the VMH.

UI MeSH Term Description Entries
D006963 Hyperphagia Ingestion of a greater than optimal quantity of food. Overeating,Polyphagia,Polyphagias
D007051 Ibotenic Acid A neurotoxic isoxazole (similar to KAINIC ACID and MUSCIMOL) found in AMANITA mushrooms. It causes motor depression, ataxia, and changes in mood, perceptions and feelings, and is a potent excitatory amino acid agonist. Acid, Ibotenic
D008297 Male Males
D009765 Obesity A status with BODY WEIGHT that is grossly above the recommended standards, usually due to accumulation of excess FATS in the body. The standards may vary with age, sex, genetic or cultural background. In the BODY MASS INDEX, a BMI greater than 30.0 kg/m2 is considered obese, and a BMI greater than 40.0 kg/m2 is considered morbidly obese (MORBID OBESITY).
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
D002452 Cell Count The number of CELLS of a specific kind, usually measured per unit volume or area of sample. Cell Density,Cell Number,Cell Counts,Cell Densities,Cell Numbers,Count, Cell,Counts, Cell,Densities, Cell,Density, Cell,Number, Cell,Numbers, Cell
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
D001068 Feeding and Eating Disorders A group of disorders characterized by physiological and psychological disturbances in appetite or food intake. Appetite Disorders,Eating Disorders,Eating and Feeding Disorders,Feeding Disorders,Appetite Disorder,Disorder, Eating,Disorder, Feeding,Disorders, Eating,Disorders, Feeding,Eating Disorder,Feeding Disorder
D014697 Ventromedial Hypothalamic Nucleus A nucleus of the middle hypothalamus, the largest cell group of the tuberal region with small-to-medium size cells. Hypothalamic Nucleus, Ventromedial,Nucleus, Ventromedial Hypothalamic
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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