Document Detail


Neonatal responsiveness to alcohol odor and infant alcohol intake as a function of alcohol experience during late gestation.
MedLine Citation:
PMID:  9665312     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
It has been previously suggested that maternal alcohol intoxication during the last days of pregnancy promotes fetal experiences that include chemosensory processing of the drug. In this study pregnant Wistar-derived rats were administered saline or one of two alcohol doses (1 or 2 g/kg) during gestational days 17-20. Immediately after birth, pups were tested in regard to motor-eliciting properties of the odor of amniotic fluid or alcohol, or of these stimuli presented as a configuration. Saline controls showed significantly shorter duration of overall motor activity and head movements when stimulated with the biological cue (amniotic fluid) than when exposed to a novel stimulus (ethanol alone or configured with the amniotic fluid). The opposite pattern was found in pups with prenatal experience with the higher alcohol dose. In a second experiment, the impact of similar alcohol treatments on infant consumption of different tastants, including alcohol and a configuration of sucrose and quinine, was tested. This configuration appears to mimic psychophysical properties of ethanol. Consumption of water, sucrose, or quinine was unaffected by the prenatal status of the subjects. Antenatal alcohol experience with the lower alcohol dose (1 g/kg) increased both alcohol and sucrose-quinine consumption. The 2 g/kg alcohol animals also ingested more sucrose-quinine relative to saline controls. As a whole, the results confirm the hypothesis that an intrauterine alcohol sensory memory selectively affects neonatal recognition of the alcohol's olfactory attributes and infant intake of either alcohol or solutions that share certain sensory equivalence with this psychopharmacological agent.
Authors:
H D Domínguez; M F López; J C Molina
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Alcohol (Fayetteville, N.Y.)     Volume:  16     ISSN:  0741-8329     ISO Abbreviation:  Alcohol     Publication Date:  1998 Aug 
Date Detail:
Created Date:  1998-09-10     Completed Date:  1998-09-10     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8502311     Medline TA:  Alcohol     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  109-17     Citation Subset:  IM    
Affiliation:
Instituto de Investigación Médica Mercedes y Martín Ferreyra Casilla de Correo 389, Córdoba, Argentina.
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MeSH Terms
Descriptor/Qualifier:
Alcohol Drinking*
Alcoholic Intoxication*
Animals
Animals, Newborn / physiology*
Behavior, Animal
Ethanol*
Female
Gestational Age*
Motor Activity
Odors*
Pregnancy
Prenatal Exposure Delayed Effects
Rats
Rats, Wistar
Chemical
Reg. No./Substance:
64-17-5/Ethanol

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


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