title: [Age-related vagal regulation features of chronotropic heart function in sympathectomized and intact rats].
authors.affiliation: Department of Anatomy, Physiology and Human Health Protection, State Pedagogical University, Kazan'.
authors.forename: T L
authors.initials: TL
authors.lastname: Zefirov
authors.forename: N V
authors.initials: NV
authors.lastname: Sviatova
mesh_terms: D000375:Aging / Q000502:physiology*; D000818:Animals; D004558:Electric Stimulation; D004562:Electrocardiography; D005260:Female; D006145:Guanethidine / Q000494:pharmacology; D006321:Heart / Q000294:innervation* / Q000502:physiology; D006339:Heart Rate / Q000502:physiology*; D008297:Male; D051381:Rats; D012815:Signal Processing, Computer-Assisted; D013563:Sympathectomy, Chemical; D013565:Sympatholytics / Q000494:pharmacology; D014630:Vagus Nerve / Q000187:drug effects / Q000502:physiology*
chemical_list: D013565:Sympatholytics; D006145:Guanethidine