Stress during Adolescence Alters Palatable Food Consumption in a Context-Dependent Manner
| Autor: | Stephanie Yanaga, Avery Reiss, Nicole Zona, Christine Handy, Emily Robinson, Katherine Saxton |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Leptin
Male Time Factors Physiology Peptide Hormones lcsh:Medicine Social Sciences Weight Gain Biochemistry 0302 clinical medicine Feeding behavior Stress (linguistics) Medicine and Health Sciences Psychology lcsh:Science Mammals Multidisciplinary Behavior Animal 05 social sciences Animal Models Physiological Parameters Vertebrates medicine.symptom Research Article Memory Long-Term Food consumption Psychological Stress Context (language use) Biology Research and Analysis Methods Rodents 03 medical and health sciences Food Preferences Model Organisms Mental Health and Psychiatry medicine Animals Adults 0501 psychology and cognitive sciences Rats Long-Evans 050102 behavioral science & comparative psychology Obesity Consumption (economics) Behavior lcsh:R Body Weight Food Consumption Organisms Biology and Life Sciences Feeding Behavior medicine.disease Hormones Rats Age Groups People and Places Exploratory Behavior lcsh:Q Population Groupings Physiological Processes Weight gain 030217 neurology & neurosurgery Stress Psychological |
| Zdroj: | PLoS ONE PLoS ONE, Vol 11, Iss 2, p e0148261 (2016) |
| ISSN: | 1932-6203 |
| Popis: | Food consumption and preferences may be shaped by exposure to stressful environments during sensitive periods in development, and even small changes in consumption can have important effects on long term health. Adolescence is increasingly recognized as a sensitive period, in which adverse experiences can alter development, but the specific programming effects that may occur during adolescence remain incompletely understood. The current study seeks to explore the effects of stress during late adolescence on consumption of a palatable, high-fat, high-sugar food in adulthood—under basal conditions, as well following acute stress. Male Long-Evans rats were exposed to a regimen of variable stress for seven days in late adolescence (PND 45–51). During the stress regimen, stressed animals gained significantly less weight than control animals, but weight in adulthood was unaffected by adolescent stress. Palatable food consumption differed between experimental groups, and the direction of effect depended on context; stressed rats ate significantly more palatable food than controls upon first exposure, but ate less following an acute stressor. Leptin levels and exploratory behaviors did not differ between stressed and non-stressed groups, suggesting that other factors regulate preference for a palatable food. Altered food consumption following adolescent stress suggests that rats remain sensitive to stress during late adolescence, and that adult feeding behavior may be affected by previous adverse experiences. Such programming effects highlight adolescence as a period of plasticity, with the potential to shape long term food consumption patterns and preferences. |
| Databáze: | OpenAIRE |
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