Document Detail


Effects of phenylpropanolamine on regulatory and nonregulatory ingestion in adult rats.
MedLine Citation:
PMID:  8415946     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
This experiment examined the effects of phenylpropanolamine (0.0, 5.0, 10.0, 20.0 mg/kg PPA) on regulatory (RG) and nonregulatory (NRG) eating and drinking in rats using a within-subjects design. Administration of PPA produced dose-dependent reductions in eating in animals deprived to 80-85% of baseline weight, and reduced drinking after 23.5-h of water deprivation. Nonregulatory eating, elicited by tail pinch in nondeprived animals, was similarly inhibited. Nonregulatory drinking was elicited in the schedule-induced polydipsia (SIP) paradigm. Water consumption, locomotion, licking, lick efficiency (licks/ml water), and entries into the food magazine were simultaneously measured. At the lowest dose, only locomotion was significantly reduced. At 10.0 mg/kg, lick efficiency and entries into the food magazine were also significantly reduced, while all measured behaviors, including licking and water consumption, were decreased by the highest dose of PPA. The reduction in lick efficiency suggested a PPA-induced motor impairment in the capacity for licking. Considered together, these results indicated that the observed decreases in regulatory and nonregulatory eating and drinking could be at least partially accounted for by the drug's effects on behaviors contributing to ingestion, as well as apparent motor impairments in ingestive behavior at higher doses.
Authors:
G Mittleman; P A Rushing; S E Winders
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Physiology & behavior     Volume:  54     ISSN:  0031-9384     ISO Abbreviation:  Physiol. Behav.     Publication Date:  1993 Sep 
Date Detail:
Created Date:  1993-11-16     Completed Date:  1993-11-16     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0151504     Medline TA:  Physiol Behav     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  515-21     Citation Subset:  IM    
Affiliation:
Department of Psychology, Memphis State University, TN 38152.
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MeSH Terms
Descriptor/Qualifier:
Animals
Appetite / drug effects*
Arousal / drug effects
Dose-Response Relationship, Drug
Drinking / drug effects*
Eating / drug effects*
Homeostasis / drug effects
Hunger / drug effects
Male
Phenylpropanolamine / pharmacology*
Rats
Thirst / drug effects
Weight Loss / drug effects*
Chemical
Reg. No./Substance:
14838-15-4/Phenylpropanolamine

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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