Abstract：
:Developmental exposure to toxicants and diet can interact with an individual's genetics and produce long-lasting metabolic adaptations. The different isoforms of the apolipoprotein E (APOE) are an important source of variability in metabolic disorders and influence the response to the pesticide chlorpyrifos (CPF). We aimed to study the epigenetic regulation on feeding control genes and the influence of postnatal CPF exposure, APOE genotype, and sex, and how these modifications impact on the metabolic response to a high-fat diet (HFD). Both male and female apoE3- and apoE4-TR mice were exposed to CPF on postnatal days 10-15. The DNA methylation pattern of proopiomelanocortin, neuropeptide Y, leptin receptor, and insulin-like growth factor 2 was studied in the hypothalamus. At adulthood, the mice were given a HFD for eight weeks. The results highlight the importance of sex in the epigenetic regulation and the implication of CPF treatment and APOE genotype. The body weight progression exhibited sex-dimorphic differences, apoE4-TR males being the most susceptible to the effects induced by CPF and HFD. Overall, these results underscore the pivotal role of sex, APOE genotype, and developmental exposure to CPF on subsequent metabolic disturbances later in life and show that sex is a key variable in epigenetic regulation.
journal_name
Int J Environ Res Public Healthauthors
Guardia-Escote L,Blanco J,Basaure P,Biosca-Brull J,Verkaik-Schakel RN,Cabré M,Peris-Sampedro F,Pérez-Fernández C,Sánchez-Santed F,Plösch T,Domingo JL,Colomina MTdoi
10.3390/ijerph18010184subject
Has Abstractpub_date
2020-12-29 00:00:00issue
1eissn
1661-7827issn
1660-4601pii
ijerph18010184journal_volume
18pub_type
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