Cited by 88Birth, Development, and HealthCardiovascular Function and Risk FactorsDiet, Metabolism, and Disease

Interaction between maternal and postnatal high fat diet leads to a greater risk of myocardial dysfunction in offspring via enhanced lipotoxicity, IRS-1 serine phosphorylation and mitochondrial defects

Turdi, Subat, Ge, Wei, Hu, Nan, Bradley, Katherine M., Wang, Xiaoming, Ren, Jun·2013·Journal of Molecular and Cellular Cardiology

Abstract

Maternal overnutrition is associated with heart diseases in adult offspring. However, combined effect of maternal and postnatal fat intake on cardiac function is unknown. This study was designed to examine the impact of maternal and postnatal fat intake on metabolic, myocardial, insulin and mitochondrial responses in adult offspring. Pregnant FVB mice were fed a low fat (LF) or high fat (HF) diet during gestation and lactation. Weaning male offspring were placed on either LF or HF (calorie-restricted HF-fed mice used as weight control) for 4 months prior to assessment of metabolic indices, myocardial histology, cardiac function, insulin signaling, mitochondrial integrity and reactive oxygen species (ROS) generation. Compared with LF- and HF-fed weight-control mice, postnatal HF intake resulted in obesity, adiposity, dyslipidemia, insulin resistance, cardiac hypertrophy, interrupted cardiac contractile, intracellular Ca(2+) and mitochondrial properties, all of which were significantly accentuated by prenatal fat exposure. Despite the preserved cardiac contractile function, LF offspring from HF-fed dams displayed higher body weights, increased adiposity and glucose intolerance. HF-fed mice with prenatal HF exposure displayed upregulated serine phosphorylation of IRS-1, PTP1B, the rate-limiting fatty acid synthesis enzyme stearoyl-CoA desaturase (SCD1) and hypertrophic markers (calcineurin A, GATA4, ANP, β-MHC and skeletal α-actin), while suppressing AMP-dependent protein kinase, glucose uptake and PGC-1α levels. Importantly, myocardial and mitochondrial ultrastructural abnormalities were more pronounced in HF-fed offspring with prenatal fat exposure, shown as loss of mitochondrial density and membrane potential, increased ROS generation and apoptosis. Our data suggest that prenatal dietary fat exposure predisposes offspring to postnatal dietary fat-induced cardiac hypertrophy and contractile defect possibly via lipotoxicity, glucose intolerance and mitochondrial dysfunction. This article is part of a Special Issue entitled "Focus on Cardiac Metabolism".

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Crossref · 10.1016/j.yjmcc.2012.12.007

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Authors
Turdi, S., Ge, W., Hu, N., Bradley, K. M., Wang, X., & Ren, J.
Affiliations
  • University of Wyoming (US)
  • Air Force Medical University (CN)
Corresponding author
Ren, Jun
Venue
Journal of Molecular and Cellular Cardiology
Publisher
Elsevier BV
Published
2013-02
Volume
55
Pages
117-129
ISSN
0022-2828 (ISSN-L)
OpenAlex
W2102009292
Cited by
88
References
66
Citations by year
2026: 6 · 2025: 7 · 2024: 4 · 2023: 6 · 2022: 11 · 2021: 7 · 2020: 7 · 2019: 5 · 2018: 6 · 2017: 5 · 2016: 5 · 2015: 9 · 2014: 6 · 2013: 4
FWCI
5.30
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Molecular and Cellular Cardiology (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Heart Association (0355521Z)
  • American Diabetes Association (7-0-RA-21)
Topics
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Birth, Development, and Health
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Function and Risk Factors
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Diet, Metabolism, and Disease
Keywords
maternal high-fat diet, cardiac dysfunction, cardiac hypertrophy, lipotoxicity, IRS-1 serine phosphorylation, insulin resistance, mitochondrial dysfunction, reactive oxygen species, impaired glucose tolerance, adiposity, dyslipidemia, stearoyl-CoA desaturase, PGC-1α, AMPK, PTP1B, cardiomyocyte apoptosis
MeSH terms
Phospholamban, Adult, Animals, Calcium, Calcium-Binding Proteins, Echocardiography, Female, Glucose, Glucose Tolerance Test, Heart, Cardiomegaly, Humans, Hypertrophy, Male, Mitochondria, Myocardial Contraction, Myocardium, Organ Size, Phosphorylation, Pregnancy, Prenatal Exposure Delayed Effects, Biomarkers, Apoptosis, Reactive Oxygen Species, Adipocytes, Sodium-Calcium Exchanger, Maternal Nutritional Physiological Phenomena, Lipid Metabolism, Proto-Oncogene Proteins c-akt, Mice, Membrane Potential, Mitochondrial, Sarcoplasmic Reticulum Calcium-Transporting ATPases, AMP-Activated Protein Kinases, Insulin Receptor Substrate Proteins, Diet, High-Fat

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