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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Tordoff, Michael G. Downing, Arnelle Voznesenskaya, Anna |
| Description | Author Affiliation: Tordoff MG ( Monell Chemical Senses Center, Philadelphia, PA 19194, USA. Electronic address: tordoff@monell.org.); Downing A ( Monell Chemical Senses Center, Philadelphia, PA 19194, USA.); Voznesenskaya A ( Monell Chemical Senses Center, Philadelphia, PA 19194, USA.) |
| Abstract | Many animals thrive when given a choice of separate sources of macronutrients. How they do this is unknown. Here, we report some studies comparing the spontaneous choices between carbohydrate- and fat-containing food sources of seven inbred mouse strains (B6, BTBR, CBA, JF1, NZW, PWD and PWK) and three mouse models with genetic ablation of taste transduction components (T1R3, ITPR3 and CALHM1). For 8days, each mouse could choose between sources of carbohydrate (CHO-P; sucrose-cornstarch) and fat (Fat-P; vegetable shortening) with each source also containing protein (casein). We found that the B6 and PWK strains markedly preferred the CHO-P diet to the Fat-P diet, the BTBR and JF1 strains markedly preferred the Fat-P diet to the CHO-P diet, and the CBA, NZW and PWD strains showed equal intakes of the two diets (by weight). Relative to their WT littermates, ITPR3 and CALHM1 KO mice had elevated Fat-P preferences but T1R3 KO mice did not. There were differences among strains in adaption to the diet choice and there were differences in response between males and females on some days. These results demonstrate the diverse responses to macronutrients of inbred mice and they point to the involvement of chemosensory detectors (but not sweetness) as contributors to macronutrient selection. |
| File Format | HTM / HTML |
| ISSN | 00319384 |
| e-ISSN | 1873507X |
| DOI | 10.1016/j.physbeh.2014.05.039 |
| Journal | Physiology & Behavior |
| Volume Number | 135 |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-08-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Research Support, N.i.h., Extramural Food Preferences Research Support, Non-u.s. Gov't Dietary Carbohydrates Choice Behavior Calcium Channels Receptors, G-protein-coupled Inositol 1,4,5-trisphosphate Receptors Mice, Inbred Strains Mice, Knockout Discipline Physiology Animals Dietary Fats Genetics Physiology Taste Mice Discipline Behavioral Neuroscience |
| Content Type | Text |
| Resource Type | Article |
| Subject | Experimental and Cognitive Psychology Behavioral Neuroscience |
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