title: [Role of hormonal and seasonal factors in the effect of vitamin E on cholinesterase activity in the nervous system].
abstract: Tests were set up on 73 Citellus fulvus to study the influence exerted by different doses of vitamin E (4 and 8 mg) introduced per os on the activity of the total cholinesterase in various divisions of the central nervous system and also the part played by the hormonal and seasonal factors in this effect. Each test series lasted 30 days (in spring, summer and autumn). The cholinesterase activity was determined after Vensen and Segonzak (1968). The results of the experiments revealed some characteristic trends in the change of the cholinesterase activity occurring under the effect of vitamin E that depended upon a number of factors, such as: the dose of tocopherol, the sex of the animal, time of the year, the brain division under study and the seasonal dynamics of the initial activity. It is shown that in the brain sectors where a material difference existed in the cholinesterase activity between the control males and females it vanished under the effect of tocopherol. On the other hand, in the brain sectors where no such difference existed, it appeared under the effect of tocopherol. The regular character of changes in the cholinesterase activity of the brain and spinal cord produced by different doses of vitamin E suggest the possibility of the brain cholinesterase activity disorders to a play a part in the development of neuro-muscular pathology in cases of the E vitamin deficiency.
mesh_terms: D000818:Animals; D001921:Brain / Q000201:enzymology; D002490:Central Nervous System / Q000187:drug effects* / Q000201:enzymology; D002531:Cerebellum / Q000201:enzymology; D002802:Cholinesterases / Q000378:metabolism*; D004027:Diencephalon / Q000201:enzymology; D004789:Enzyme Activation / Q000187:drug effects; D005260:Female; D005849:Gerbillinae; D012739:Gonadal Steroid Hormones / Q000502:physiology*; D008297:Male; D008526:Medulla Oblongata / Q000201:enzymology; D008636:Mesencephalon / Q000201:enzymology; D012621:Seasons; D012737:Sex Factors; D013116:Spinal Cord / Q000201:enzymology; D013997:Time Factors; D014810:Vitamin E / Q000494:pharmacology*
chemical_list: D012739:Gonadal Steroid Hormones; D014810:Vitamin E; D002802:Cholinesterases
vernacular_title: Rol' gormonal'nogo i sezonnogo faktorov vo vliianii vitamina E na aktivnost' kholinésterazy nervnoĭ sistemy