Cited by 18Birth, Development, and HealthRenin-Angiotensin System StudiesEpigenetics and DNA Methylation

Perinatal Exposure to Western Diet Programs Autonomic Dysfunction in the Male Offspring

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Mukerjee, Snigdha, Zhu, Yun, Zsombok, Andrea, Mauvais-Jarvis, Franck, Zhao, Jinying, Lazartigues, Eric·2018·Cellular and Molecular Neurobiology

Abstract

Although the deleterious influence of protein deficiency on fetal programming is well documented, the impact of a Western diet on epigenetic mechanisms is less clear. We hypothesized that high-fat high-sucrose diet (HFHSD) consumption during pregnancy leads to epigenetic modifications within the progeny's compensatory renin-angiotensin system (RAS), affecting autonomic and metabolic functions. Dams were fed HFHSD (45% fat and 30% sucrose) or regular chow (RD) from mating until weaning of the pups (~7 weeks). Offspring from both groups were then maintained on chow and studied in adulthood (3-7 months). Offspring from HFHSD-exposed dams (OH) exhibited no difference in body weight or fasting blood glucose compared to controls (OR). In 3-month-old offspring, DNA methylation was significantly lower for the ACE2 gene (P < 0.05) in the brainstem, kidney and cecum. Moreover, ACE2 activity in the hypothalamus was increased at 7 months (OH: 91 ± 1 vs. OR: 74 ± 4 AFU/mg/min, P < 0.05). Although baseline blood pressure was not different between groups, vagal tone in OH was significantly impaired compared to OR. At the same time, OH offspring had a 1.7-fold increase in AT 1a receptor expression and a 1.3-fold increase in ADAM17 mRNA. DOCA-salt treatment further revealed and exacerbated hypertensive response in the OH progeny (OH: 130 ± 6 vs. OR: 108 ± 3 mmHg, P < 0.05). Taken together, our data suggest that perinatal exposure to HFHSD resulted in epigenetic modifications of the compensatory brain RAS, potentially affecting plasticity of neuronal networks leading to autonomic dysfunction in the male offspring.

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Authors
Mukerjee, S., Zhu, Y., Zsombok, A., Mauvais-Jarvis, F., Zhao, J., & Lazartigues, E.
Affiliations
  • Louisiana State University Health Sciences Center New Orleans (US)
  • University of Florida (US)
  • Tulane University (US)
  • Louisiana State University (US)
Corresponding author
Lazartigues, Eric
Venue
Cellular and Molecular Neurobiology
Published
2017-05-06
Volume
38
Issue
1
Pages
233-242
ISSN
  • 0272-4340 (ISSN-L)
  • 1573-6830
OpenAlex
W2611950821
Cited by
18
References
54
Citations by year
2025: 2 · 2023: 1 · 2022: 1 · 2021: 4 · 2020: 5 · 2019: 2 · 2018: 2 · 2017: 1
FWCI
2.99
Type
journal article
Language
en
Open access
Locations
  • Cellular and Molecular Neurobiology (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
Funders
  • American Heart Association (12EIA8030004)
  • National Center for Research Resources (RR018766)
  • National Institute of General Medical Sciences (GM103514, GM106392)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Epigenetics and DNA Methylation
Keywords
Western diet, perinatal programming, fetal programming, DNA methylation, ACE2, renin-angiotensin system, autonomic dysfunction, vagal tone, AT1a receptor, ADAM17, DOCA-salt hypertension, hypothalamus, brainstem, cecum, male offspring
MeSH terms
Age Factors, Animals, Animals, Newborn, Blood Glucose, Blood Pressure, Body Weight, Brain, Female, Male, Mice, Inbred C57BL, Pregnancy, Prenatal Exposure Delayed Effects, Renin-Angiotensin System, DNA Methylation, Epigenesis, Genetic, Mice, Diet, Western

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