[Tolerance to repeated hypothalamic arcuate nucleus (ARC) stimulation and its cross tolerance to morphine].
D000700:Analgesics; D000818:Animals; D001111:Arcuate Nucleus of Hypothalamus / Q000502:physiology*; D004361:Drug Tolerance; D004558:Electric Stimulation; D004723:Endorphins / Q000502:physiology; D007031:Hypothalamus / Q000502:physiology*; D009020:Morphine / Q000494:pharmacology*; D010146:Pain / Q000503:physiopathology*; D051381:Rats; D012684:Sensory Thresholds; D001615:beta-Endorphin
D000700:Analgesics; D004723:Endorphins; D001615:beta-Endorphin; D009020:Morphine