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Freire-Regatillo A, Fernández-Gómez MJ, Díaz F, Barrios V, Sánchez-Jabonero I, Frago LM, Argente J, García-Segura LM, Chowen JA. Sex differences in the peripubertal response to a short-term, high-fat diet intake. J Neuroendocrinol 2020; 32:e12756. [PMID: 31179596 DOI: 10.1111/jne.12756] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2019] [Revised: 06/06/2019] [Accepted: 06/06/2019] [Indexed: 12/13/2022]
Abstract
Obesity is one of the most important health problems facing developed countries because being overweight is associated with a higher incidence of type 2 diabetes, cardiovascular disease and cancer, as well as other comorbidities. Although increased weight gain results from a combination of poor dietary habits and decreased energy expenditure, not all individuals have equal propensities to gain weight or to develop secondary complications of obesity. This is partially a result not only of genetics, including sex, but also the time during which an individual is exposed to an obesogenic environment. In the present study, we have compared the response of male and female mice to short-term exposure to a high-fat diet (HFD) or a low-fat diet during the peripubertal period (starting at 42 days of age) because this is a stage of dramatic hormonal and metabolic modifications. After 1 week on a HFD, there was no significant increase in body weight, although females significantly increased their energy intake. Serum leptin levels increased in both sexes, even though no change in fat mass was detected. Glyceamia and homeostasis model assessment increased in males, suggesting a rapid change in glucose metabolism. Hypothalamic pro-opiomelanocortin mRNA levels were significantly higher in females on a HFD compared to all other groups, which may be an attempt to reduce their increased energy intake. Hypothalamic inflammation and gliosis have been implicated in the development of secondary complications of obesity; however, no indication of activation of inflammatory processes or gliosis was found in response to 1 week of HFD in the hypothalamus, hippocampus or cerebellum of these young mice. These results indicate that there are both sex and age effects in the response to poor dietary intake because peripubertal male and female mice respond differently to short-term dietary changes and this response is different from that reported in adult rodents.
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Affiliation(s)
- Alejandra Freire-Regatillo
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
- Department of Pediatrics, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- CIBEROBN (Centro de Investigación Biomédica en Red: Fisiopatología de la Obesidad y Nutrición), Instituto Carlos III, Madrid, Spain
| | - María J Fernández-Gómez
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
| | - Francisca Díaz
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
- CIBEROBN (Centro de Investigación Biomédica en Red: Fisiopatología de la Obesidad y Nutrición), Instituto Carlos III, Madrid, Spain
| | - Vicente Barrios
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
- CIBEROBN (Centro de Investigación Biomédica en Red: Fisiopatología de la Obesidad y Nutrición), Instituto Carlos III, Madrid, Spain
| | | | - Laura M Frago
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
- Department of Pediatrics, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- CIBEROBN (Centro de Investigación Biomédica en Red: Fisiopatología de la Obesidad y Nutrición), Instituto Carlos III, Madrid, Spain
| | - Jesús Argente
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
- Department of Pediatrics, Facultad de Medicina, Universidad Autónoma de Madrid, Madrid, Spain
- CIBEROBN (Centro de Investigación Biomédica en Red: Fisiopatología de la Obesidad y Nutrición), Instituto Carlos III, Madrid, Spain
- IMDEA Food Institute, CEI UAM + CSIC, Madrid, Spain
| | - Luis Miguel García-Segura
- Instituto Cajal, CSIC (Consejo Superior de Investigaciones Científicas), Madrid, Spain
- CIBERFES (Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable), Instituto Carlos III, Madrid, Spain
| | - Julie A Chowen
- Department of Endocrinology, Hospital Infantil Universitario Niño Jesús, Instituto de Investigación la Princesa, Madrid, Spain
- CIBEROBN (Centro de Investigación Biomédica en Red: Fisiopatología de la Obesidad y Nutrición), Instituto Carlos III, Madrid, Spain
- IMDEA Food Institute, CEI UAM + CSIC, Madrid, Spain
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