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Article: Food intake and choice in lean and obese Zucker rats after intragastric carbohydrate preloads

TitleFood intake and choice in lean and obese Zucker rats after intragastric carbohydrate preloads
Authors
Issue Date1990
PublisherAmerican Society for Nutrition. The Journal's web site is located at http://jn.nutrition.org
Citation
Journal Of Nutrition, 1990, v. 120 n. 3, p. 309-316 How to Cite?
AbstractFeeding behavior in response to a carbohydrate preload was determined in lean and obese Zucker rats. Rats were adapted to a schedule of feeding during a 12-h daily dark period. Carbohydrate preloads (cornstarch in water) were given by intragastric intubation 30 min before rats had access to a choice of two diets that differed in their protein and carbohydrate contents. Behavioral responses of lean rats to carbohydrate preloads were prompt and selective. In the first hour of feeding, reduction in intake, mainly of the high carbohydrate-low protein diet, more than compensated for the energy content of the preload. In contrast, obese rats failed to achieve a similar degree of compensation to the energy surplus from the carbohydrate preload during the first hour of feeding. Also, their decreases in food intake were nonselective. In general, it took obese rats two or more hours to adjust their feeding behavior in response to a carbohydrate preload. Increasing the size of the preload did not improve the overall response of obese rats, but an extra 30-min lapse between preload and food access led to selective suppression in first-hour intake from the high carbohydrate-low protein diet. These findings suggest that altered food intake and selection behavior of the obese Zucker rat may be, in part, due to a delay in response to physiologic and metabolic changes arising from carbohydrate ingestion.
Persistent Identifierhttp://hdl.handle.net/10722/178493
ISSN
2015 Impact Factor: 3.74
2015 SCImago Journal Rankings: 2.040
ISI Accession Number ID

 

DC FieldValueLanguage
dc.contributor.authorVan Zeggeren, Aen_US
dc.contributor.authorLi, ETSen_US
dc.date.accessioned2012-12-19T09:48:00Z-
dc.date.available2012-12-19T09:48:00Z-
dc.date.issued1990en_US
dc.identifier.citationJournal Of Nutrition, 1990, v. 120 n. 3, p. 309-316en_US
dc.identifier.issn0022-3166en_US
dc.identifier.urihttp://hdl.handle.net/10722/178493-
dc.description.abstractFeeding behavior in response to a carbohydrate preload was determined in lean and obese Zucker rats. Rats were adapted to a schedule of feeding during a 12-h daily dark period. Carbohydrate preloads (cornstarch in water) were given by intragastric intubation 30 min before rats had access to a choice of two diets that differed in their protein and carbohydrate contents. Behavioral responses of lean rats to carbohydrate preloads were prompt and selective. In the first hour of feeding, reduction in intake, mainly of the high carbohydrate-low protein diet, more than compensated for the energy content of the preload. In contrast, obese rats failed to achieve a similar degree of compensation to the energy surplus from the carbohydrate preload during the first hour of feeding. Also, their decreases in food intake were nonselective. In general, it took obese rats two or more hours to adjust their feeding behavior in response to a carbohydrate preload. Increasing the size of the preload did not improve the overall response of obese rats, but an extra 30-min lapse between preload and food access led to selective suppression in first-hour intake from the high carbohydrate-low protein diet. These findings suggest that altered food intake and selection behavior of the obese Zucker rat may be, in part, due to a delay in response to physiologic and metabolic changes arising from carbohydrate ingestion.en_US
dc.languageengen_US
dc.publisherAmerican Society for Nutrition. The Journal's web site is located at http://jn.nutrition.orgen_US
dc.relation.ispartofJournal of Nutritionen_US
dc.subject.meshAnalysis Of Varianceen_US
dc.subject.meshAnimalsen_US
dc.subject.meshAppetite Regulationen_US
dc.subject.meshBody Weighten_US
dc.subject.meshDietary Carbohydrates - Administration & Dosage - Pharmacologyen_US
dc.subject.meshEatingen_US
dc.subject.meshFood Preferencesen_US
dc.subject.meshMaleen_US
dc.subject.meshObesity - Metabolismen_US
dc.subject.meshRatsen_US
dc.subject.meshRats, Zuckeren_US
dc.subject.meshSatiety Responseen_US
dc.titleFood intake and choice in lean and obese Zucker rats after intragastric carbohydrate preloadsen_US
dc.typeArticleen_US
dc.identifier.emailLi, ETS: etsli@hku.hken_US
dc.identifier.authorityLi, ETS=rp00737en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.pmid2319348-
dc.identifier.scopuseid_2-s2.0-0025344251en_US
dc.identifier.volume120en_US
dc.identifier.issue3en_US
dc.identifier.spage309en_US
dc.identifier.epage316en_US
dc.identifier.isiWOS:A1990CX81200011-
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridVan Zeggeren, A=6504513633en_US
dc.identifier.scopusauthoridLi, ETS=14018169600en_US

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