Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding
Fetal exposure to maternal undernutrition has lifelong consequences for physiological and metabolic function. Maternal low-protein diet is associated with an age-related phenotype in rats, characterised by a period of resistance to development of obesity in early adulthood, giving way to an obesity-...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Published: |
Cambridge University Press
2015
|
| Subjects: | |
| Online Access: | https://eprints.nottingham.ac.uk/28475/ |
| _version_ | 1848793580814991360 |
|---|---|
| author | Ware, Samantha Voigt, Jörg-Peter Langley-Evans, Simon C. |
| author_facet | Ware, Samantha Voigt, Jörg-Peter Langley-Evans, Simon C. |
| author_sort | Ware, Samantha |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Fetal exposure to maternal undernutrition has lifelong consequences for physiological and metabolic function. Maternal low-protein diet is associated with an age-related phenotype in rats, characterised by a period of resistance to development of obesity in early adulthood, giving way to an obesity-prone, insulin-resistant state in later adulthood. Offspring of rats fed a control (18 % casein) or low-protein (9 % casein; LP) diet in pregnancy were challenged with a high-fat diet at 9 months of age. To assess whether other maternal factors modulated the programming effects of nutrition, offspring were studied from young (2–4 months old) and older (6–9 months old) mothers. Weight gain with a high-fat diet was attenuated in male offspring of older mothers fed LP (interaction of maternal age and diet; P = 0·011) and adipose tissue deposition was lower with LP feeding in both males and females (P < 0·05). Although the resistance to weight gain and adiposity was partially explained by lower energy intake in offspring of LP mothers (P < 0·001 males only), it was apparent that energy expenditure must be influenced by maternal diet and age. Assessment of locomotor activity indicated that energy expenditure associated with physical activity was unlikely to explain resistance to weight gain, but showed that offspring of older mothers were more anxious than thoseof younger mothers, with more rearing observed in a novel environment and on the elevated plus-maze. The data showed that in addition to maternal undernutrition, greater maternal age may influence development and long-term body composition in the rat. |
| first_indexed | 2025-11-14T19:02:34Z |
| format | Article |
| id | nottingham-28475 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:02:34Z |
| publishDate | 2015 |
| publisher | Cambridge University Press |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-284752020-05-04T17:03:06Z https://eprints.nottingham.ac.uk/28475/ Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding Ware, Samantha Voigt, Jörg-Peter Langley-Evans, Simon C. Fetal exposure to maternal undernutrition has lifelong consequences for physiological and metabolic function. Maternal low-protein diet is associated with an age-related phenotype in rats, characterised by a period of resistance to development of obesity in early adulthood, giving way to an obesity-prone, insulin-resistant state in later adulthood. Offspring of rats fed a control (18 % casein) or low-protein (9 % casein; LP) diet in pregnancy were challenged with a high-fat diet at 9 months of age. To assess whether other maternal factors modulated the programming effects of nutrition, offspring were studied from young (2–4 months old) and older (6–9 months old) mothers. Weight gain with a high-fat diet was attenuated in male offspring of older mothers fed LP (interaction of maternal age and diet; P = 0·011) and adipose tissue deposition was lower with LP feeding in both males and females (P < 0·05). Although the resistance to weight gain and adiposity was partially explained by lower energy intake in offspring of LP mothers (P < 0·001 males only), it was apparent that energy expenditure must be influenced by maternal diet and age. Assessment of locomotor activity indicated that energy expenditure associated with physical activity was unlikely to explain resistance to weight gain, but showed that offspring of older mothers were more anxious than thoseof younger mothers, with more rearing observed in a novel environment and on the elevated plus-maze. The data showed that in addition to maternal undernutrition, greater maternal age may influence development and long-term body composition in the rat. Cambridge University Press 2015-02-04 Article PeerReviewed Ware, Samantha, Voigt, Jörg-Peter and Langley-Evans, Simon C. (2015) Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding. Journal of Nutritional Science, 4 (e3). pp. 1-11. ISSN 2048-6790 Fetal programming: Obesity: Ageing http://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=9546606&fileId=S2048679014000640 doi:10.1017/jns.2014.64 doi:10.1017/jns.2014.64 |
| spellingShingle | Fetal programming: Obesity: Ageing Ware, Samantha Voigt, Jörg-Peter Langley-Evans, Simon C. Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| title | Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| title_full | Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| title_fullStr | Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| title_full_unstemmed | Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| title_short | Body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| title_sort | body composition and behaviour in adult rats are influenced by maternal diet, maternal age and high-fat feeding |
| topic | Fetal programming: Obesity: Ageing |
| url | https://eprints.nottingham.ac.uk/28475/ https://eprints.nottingham.ac.uk/28475/ https://eprints.nottingham.ac.uk/28475/ |