title: Somatostatin and thyrotropin releasing hormone: central effect on sleep and motor system.
abstract: The hypothalamic hormones, somatostatin (SRIF or GH-RIH) and thyrotropin releasing hormone (TRH) applied intraventricularly into rat brain had a considerable effect on motor function and resulted in profound alterations in the sleep-waking pattern. While TRH induced primarily an increase in exploratory and motor stereotyped behavior, the effect of somatostatin was striking and prolonged: stereotyped circular running in many instances evolved into catatonia, paraplegia-in extension and/or tonic-clonic seizures.
mesh_terms: D000818:Animals; D008297:Male; D009043:Motor Activity / Q000187:drug effects*; D010902:Pituitary Gland / Q000502:physiology; D051381:Rats; D012890:Sleep / Q000187:drug effects*; D012894:Sleep Stages / Q000187:drug effects; D012895:Sleep, REM / Q000187:drug effects; D013004:Somatostatin / Q000494:pharmacology*; D013973:Thyrotropin-Releasing Hormone / Q000494:pharmacology*; D013997:Time Factors
chemical_list: D013004:Somatostatin; D013973:Thyrotropin-Releasing Hormone