The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)

Comparison of anorexia and motor disruption by cyclazocine and quipazine.

The mixed narcotic agonist-antagonist cyclazocine and the 5-HT agonist quipazine disrupt food-rewarded fixed ratio-40 (FR-40) operant behavior in rats as a dose-dependent decrease in the number of reinforcers obtained and a reciprocal increase in the number of 10-second intervals between responding ("pausing"). This disruption has been shown to result in part from interaction with 5-HT neuronal systems, and may be a consequence of: (1) disruption of cognitive processes, (2) motivational impairment, or (3) motor deficits. To identify which of these components is (are) involved in the disruption of operant responding, female Sprague-Dawley rats were tested for food consumption, spontaneous locomotor activity, or rotarod performance following intraperitoneal injection of cyclazocine, quipazine, or both. Cyclazocine decreased food consumption at doses larger than those required to disrupt operant behavior, while quipazine decreased consumption at doses disruptive to operant responding. Little effect was exerted by either drug on spontaneous locomotor activity, while rotarod performance was disrupted only by very large doses of either drug relative to effects of FR-40 behavior. These data indicate that neither drug appears to disrupt operant behavior by causing gross motor deficits. Thus, cyclazocine may disrupt operant responding by impairing cognition, while quipazine may act through food satiation mechanisms.[1]


  1. Comparison of anorexia and motor disruption by cyclazocine and quipazine. Henck, J.W., Rezabek, D.H., Rech, R.H. Pharmacol. Biochem. Behav. (1985) [Pubmed]
WikiGenes - Universities