The prevalence of maternal overweight and obesity continues to increase in the U.S. and spans the spectrum of age, race and ethnicity, and socioeconomic status. Alarmingly, although the rate of preadolescent obesity has stabilized over the last decade, 1 in 10 infants and toddlers are obese, and 1 in 5 youth are both obese and at-risk for metabolic syndrome prior to the onset of puberty. Our hypothesis is that maternal obesity and Western Style Diets (WSD) are causing damage to the development of key metabolic systems (liver, muscle and pancreas) thereby altering tissue function at the cellular and molecular level in young offspring of obese mothers. Furthermore, the persistence of abnormalities in postnatal animals switched to a healthy diet suggests that the developmental changes may have permanent effects that alter metabolic outcomes, linking early maternal obesity/WSD to long term risk for obesity and type 2 diabetes in the next generation. Life-course studies in human infants born to obese mothers, particularly at the molecular and cellular level in tissues relevant to diabetes and obesity, are completely lacking. Our group has spent the past decade developing and thereafter utilizing a sophisticated Non-Human Primate (NHP) model of maternal high fat/caloric dense WSD consumption that has critically important developmental and physiological similarities to humans. The major focus of this grant will be on detailed longitudinal based investigations in the offspring of obese mothers focusing on juvenile physiology (including food intake and energy expenditure), functional and morphological changes in 3 key tissues: liver, pancreas, and skeletal muscle, along with genomic events across tissues and time.
In Aim 1 offspring of obese or lean mothers will be weaned to healthy chow-based control diet or continued WSD, and animals followed up to 3 years of age (just prior to puberty). To interrupt this viscous cycle, obese mothers consuming a WSD diet will be supplemented with Resveratrol (Aim 2), an antioxidant with anti-inflammatory properties, or a healthy chow based diet (Aim 3) just prior to conception. The offspring of both resveratrol and diet-switched mothers will be studied up to 14 mo. of age. Such studies will provide important mechanistic insights into how maternal diet and metabolic health impact development, adaptability and postnatal function of the liver, pancreas, and skeletal muscle--tissues that are inaccessible in humans, but with direct clinical and translational implications for the development of obesity and type 2 diabetes. Our studies continue to address the need for controlled, mechanistic studies to identify the respective contributions of maternal obesity and pre- and post-weaning diet exposures on key metabolic systems in offspring of a model directly relevant to humans.

Public Health Relevance

Infants born to obese mothers or those consuming a Western style diet high in fat during pregnancy and lactation have greater risk of developing early onset obesity, diabetes and cardiovascular disease. The major focus of this grant will be on detailed mechanistic-based investigations of Non-Human Primates, including the impact of two distinct dietary interventions in obese pregnancy designed to mitigate functional physiology and related genetic modifications in Juvenile liver, pancreas, and skeletal muscle -tissues that are inaccessible in humans, but with direct clinical and translational implications.

Agency
National Institute of Health (NIH)
Institute
National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Type
Resource-Related Research Projects (R24)
Project #
5R24DK090964-07
Application #
9117532
Study Section
Special Emphasis Panel (ZDK1)
Program Officer
Silva, Corinne M
Project Start
2010-09-25
Project End
2020-07-31
Budget Start
2016-08-01
Budget End
2017-07-31
Support Year
7
Fiscal Year
2016
Total Cost
Indirect Cost
Name
University of Colorado Denver
Department
Pediatrics
Type
Schools of Medicine
DUNS #
041096314
City
Aurora
State
CO
Country
United States
Zip Code
80045
Friedman, Jacob E (2018) Developmental Programming of Obesity and Diabetes in Mouse, Monkey, and Man in 2018: Where Are We Headed? Diabetes 67:2137-2151
True, Cadence; Arik, Anam; Lindsley, Sarah et al. (2018) Early High-Fat Diet Exposure Causes Dysregulation of the Orexin and Dopamine Neuronal Populations in Nonhuman Primates. Front Endocrinol (Lausanne) 9:508
True, Cadence; Dean, Tyler; Takahashi, Diana et al. (2018) Maternal High-Fat Diet Effects on Adaptations to Metabolic Challenges in Male and Female Juvenile Nonhuman Primates. Obesity (Silver Spring) 26:1430-1438
Seferovic, Maxim; Sánchez-San Martín, Claudia; Tardif, Suzette D et al. (2018) Experimental Zika Virus Infection in the Pregnant Common Marmoset Induces Spontaneous Fetal Loss and Neurodevelopmental Abnormalities. Sci Rep 8:6851
Roberts, Victoria H J; Lo, Jamie O; Lewandowski, Katherine S et al. (2018) Adverse Placental Perfusion and Pregnancy Outcomes in a New Nonhuman Primate Model of Gestational Protein Restriction. Reprod Sci 25:110-119
Pace, Ryan M; Prince, Amanda L; Ma, Jun et al. (2018) Modulations in the offspring gut microbiome are refractory to postnatal synbiotic supplementation among juvenile primates. BMC Microbiol 18:28
Friedman, Jacob E; Dobrinskikh, Evgenia; Alfonso-Garcia, Alba et al. (2018) Pyrroloquinoline quinone prevents developmental programming of microbial dysbiosis and macrophage polarization to attenuate liver fibrosis in offspring of obese mice. Hepatol Commun 2:313-328
Rudolph, Michael C; Jackman, Matthew R; Presby, David M et al. (2018) Low Neonatal Plasma n-6/n-3 PUFA Ratios Regulate Offspring Adipogenic Potential and Condition Adult Obesity Resistance. Diabetes 67:651-661
Soto, Susan M; Blake, Amy C; Wesolowski, Stephanie R et al. (2017) Myoblast replication is reduced in the IUGR fetus despite maintained proliferative capacity in vitro. J Endocrinol 232:475-491
Nash, Michael J; Frank, Daniel N; Friedman, Jacob E (2017) Early Microbes Modify Immune System Development and Metabolic Homeostasis-The ""Restaurant"" Hypothesis Revisited. Front Endocrinol (Lausanne) 8:349

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