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Hasegawa Y, Kim DHJ, Zhang Z, Taha AY, Capitanio JP, Hogrefe CE, Bauman MD, Golub MS, Van de Water J, VandeVoort CA, Walker CK, Slupsky CM. Calorie restriction and pravastatin administration during pregnancy in obese rhesus macaques modulates maternal and infant metabolism and infant brain and behavioral development. Front Nutr 2023; 10:1146804. [PMID: 37255938 PMCID: PMC10225656 DOI: 10.3389/fnut.2023.1146804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 04/26/2023] [Indexed: 06/01/2023] Open
Abstract
Background Maternal obesity has been associated with a higher risk of pregnancy-related complications in mothers and offspring; however, effective interventions have not yet been developed. We tested two interventions, calorie restriction and pravastatin administration, during pregnancy in a rhesus macaque model with the hypothesis that these interventions would normalize metabolic dysregulation in pregnant mothers leading to an improvement in infant metabolic and cognitive/social development. Methods A total of 19 obese mothers were assigned to either one of the two intervention groups (n = 5 for calorie restriction; n = 7 for pravastatin) or an obese control group (n = 7) with no intervention, and maternal gestational samples and postnatal infant samples were compared with lean control mothers (n = 6) using metabolomics methods. Results Gestational calorie restriction normalized one-carbon metabolism dysregulation in obese mothers, but altered energy metabolism in her offspring. Although administration of pravastatin during pregnancy tended to normalize blood cholesterol in the mothers, it potentially impacted the gut microbiome and kidney function of their offspring. In the offspring, both calorie restriction and pravastatin administration during pregnancy tended to normalize the activity of AMPK in the brain at 6 months, and while results of the Visual Paired-Comparison test, which measures infant recognition memory, was not significantly impacted by either of the interventions, gestational pravastatin administration, but not calorie restriction, tended to normalize anxiety assessed by the Human Intruder test. Conclusions Although the two interventions tested in a non-human primate model led to some improvements in metabolism and/or infant brain development, negative impacts were also found in both mothers and infants. Our study emphasizes the importance of assessing gestational interventions for maternal obesity on both maternal and offspring long-term outcomes.
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Affiliation(s)
- Yu Hasegawa
- Department of Food Science and Technology, University of California-Davis, Davis, CA, United States
| | - Danielle H J Kim
- Department of Internal Medicine, Division of Rheumatology, Allergy, and Clinical Immunology, University of California-Davis, Davis, CA, United States
| | - Zhichao Zhang
- Department of Food Science and Technology, University of California-Davis, Davis, CA, United States
| | - Ameer Y Taha
- Department of Food Science and Technology, University of California-Davis, Davis, CA, United States
| | - John P Capitanio
- California National Primate Research Center, University of California-Davis, Davis, CA, United States
| | - Casey E Hogrefe
- California National Primate Research Center, University of California-Davis, Davis, CA, United States
| | - Melissa D Bauman
- California National Primate Research Center, University of California-Davis, Davis, CA, United States
- The UC Davis MIND Institute, University of California-Davis, Sacramento, CA, United States
- Department of Psychiatry and Behavioral Sciences, University of California-Davis, Sacramento, CA, United States
| | - Mari S Golub
- California National Primate Research Center, University of California-Davis, Davis, CA, United States
| | - Judy Van de Water
- The UC Davis MIND Institute, University of California-Davis, Sacramento, CA, United States
- Department of Internal Medicine, University of California-Davis, Sacramento, CA, United States
| | - Catherine A VandeVoort
- California National Primate Research Center, University of California-Davis, Davis, CA, United States
- Department of Obstetrics and Gynecology, University of California-Davis, Davis, CA, United States
| | - Cheryl K Walker
- California National Primate Research Center, University of California-Davis, Davis, CA, United States
- The UC Davis MIND Institute, University of California-Davis, Sacramento, CA, United States
- Department of Obstetrics and Gynecology, University of California-Davis, Davis, CA, United States
| | - Carolyn M Slupsky
- Department of Food Science and Technology, University of California-Davis, Davis, CA, United States
- Department of Nutrition, University of California-Davis, Davis, CA, United States
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2
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Laufer BI, Hasegawa Y, Zhang Z, Hogrefe CE, Del Rosso LA, Haapanen L, Hwang H, Bauman MD, Van de Water J, Taha AY, Slupsky CM, Golub MS, Capitanio JP, VandeVoort CA, Walker CK, LaSalle JM. Multi-omic brain and behavioral correlates of cell-free fetal DNA methylation in macaque maternal obesity models. Nat Commun 2022; 13:5538. [PMID: 36130949 PMCID: PMC9492781 DOI: 10.1038/s41467-022-33162-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 09/06/2022] [Indexed: 11/28/2022] Open
Abstract
Maternal obesity during pregnancy is associated with neurodevelopmental disorder (NDD) risk. We utilized integrative multi-omics to examine maternal obesity effects on offspring neurodevelopment in rhesus macaques by comparison to lean controls and two interventions. Differentially methylated regions (DMRs) from longitudinal maternal blood-derived cell-free fetal DNA (cffDNA) significantly overlapped with DMRs from infant brain. The DMRs were enriched for neurodevelopmental functions, methylation-sensitive developmental transcription factor motifs, and human NDD DMRs identified from brain and placenta. Brain and cffDNA methylation levels from a large region overlapping mir-663 correlated with maternal obesity, metabolic and immune markers, and infant behavior. A DUX4 hippocampal co-methylation network correlated with maternal obesity, infant behavior, infant hippocampal lipidomic and metabolomic profiles, and maternal blood measurements of DUX4 cffDNA methylation, cytokines, and metabolites. We conclude that in this model, maternal obesity was associated with changes in the infant brain and behavior, and these differences were detectable in pregnancy through integrative analyses of cffDNA methylation with immune and metabolic factors.
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Affiliation(s)
- Benjamin I Laufer
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, 95616, USA
- UC Davis Genome Center, University of California, Davis, CA, 95616, USA
- MIND Institute, School of Medicine, University of California Davis, Sacramento, CA, 95817, USA
- Department of OMNI Bioinformatics, Genentech, Inc., South San Francisco, CA, 94080, USA
| | - Yu Hasegawa
- Department of Food Science and Technology, University of California Davis, Davis, CA, 95616, USA
| | - Zhichao Zhang
- Department of Food Science and Technology, University of California Davis, Davis, CA, 95616, USA
| | - Casey E Hogrefe
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
| | - Laura A Del Rosso
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
| | - Lori Haapanen
- MIND Institute, School of Medicine, University of California Davis, Sacramento, CA, 95817, USA
| | - Hyeyeon Hwang
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, 95616, USA
- UC Davis Genome Center, University of California, Davis, CA, 95616, USA
- MIND Institute, School of Medicine, University of California Davis, Sacramento, CA, 95817, USA
| | - Melissa D Bauman
- MIND Institute, School of Medicine, University of California Davis, Sacramento, CA, 95817, USA
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California Davis, Davis, CA, 95616, USA
- Perinatal Origins of Disparities Center, University of California Davis, Davis, CA, 95616, USA
| | - Judy Van de Water
- Perinatal Origins of Disparities Center, University of California Davis, Davis, CA, 95616, USA
- Department of Internal Medicine, University of California Davis, Davis, CA, 95616, USA
| | - Ameer Y Taha
- Department of Food Science and Technology, University of California Davis, Davis, CA, 95616, USA
| | - Carolyn M Slupsky
- Department of Food Science and Technology, University of California Davis, Davis, CA, 95616, USA
- Perinatal Origins of Disparities Center, University of California Davis, Davis, CA, 95616, USA
- Department of Nutrition, University of California Davis, Davis, CA, 95616, USA
| | - Mari S Golub
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
| | - John P Capitanio
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
- Department of Psychology, University of California Davis, Davis, CA, 95616, USA
| | - Catherine A VandeVoort
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
- Department of Obstetrics and Gynecology, School of Medicine, University of California Davis, Davis, CA, 95616, USA
| | - Cheryl K Walker
- MIND Institute, School of Medicine, University of California Davis, Sacramento, CA, 95817, USA
- California National Primate Research Center, University of California Davis, Davis, CA, 95616, USA
- Perinatal Origins of Disparities Center, University of California Davis, Davis, CA, 95616, USA
- Department of Obstetrics and Gynecology, School of Medicine, University of California Davis, Davis, CA, 95616, USA
| | - Janine M LaSalle
- Department of Medical Microbiology and Immunology, School of Medicine, University of California Davis, Davis, CA, 95616, USA.
- UC Davis Genome Center, University of California, Davis, CA, 95616, USA.
- MIND Institute, School of Medicine, University of California Davis, Sacramento, CA, 95817, USA.
- Perinatal Origins of Disparities Center, University of California Davis, Davis, CA, 95616, USA.
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3
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Hasegawa Y, Zhang Z, Taha AY, Capitanio JP, Bauman MD, Golub MS, Van de Water J, VandeVoort CA, Walker CK, Slupsky CM. Impact of Maternal Obesity on the Gestational Metabolome and Infant Metabolome, Brain, and Behavioral Development in Rhesus Macaques. Metabolites 2022; 12:764. [PMID: 36005637 PMCID: PMC9415340 DOI: 10.3390/metabo12080764] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 08/13/2022] [Accepted: 08/14/2022] [Indexed: 01/16/2023] Open
Abstract
Maternal gestational obesity is associated with elevated risks for neurodevelopmental disorder, including autism spectrum disorder. However, the mechanisms by which maternal adiposity influences fetal developmental programming remain to be elucidated. We aimed to understand the impact of maternal obesity on the metabolism of both pregnant mothers and their offspring, as well as on metabolic, brain, and behavioral development of offspring by utilizing metabolomics, protein, and behavioral assays in a non-human primate model. We found that maternal obesity was associated with elevated inflammation and significant alterations in metabolites of energy metabolism and one-carbon metabolism in maternal plasma and urine, as well as in the placenta. Infants that were born to obese mothers were significantly larger at birth compared to those that were born to lean mothers. Additionally, they exhibited significantly reduced novelty preference and significant alterations in their emotional response to stress situations. These changes coincided with differences in the phosphorylation of enzymes in the brain mTOR signaling pathway between infants that were born to obese and lean mothers and correlated with the concentration of maternal plasma betaine during pregnancy. In summary, gestational obesity significantly impacted the infant systemic and brain metabolome and adaptive behaviors.
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Affiliation(s)
- Yu Hasegawa
- Department of Food Science and Technology, University of California-Davis, Davis, CA 95616, USA
| | - Zhichao Zhang
- Department of Food Science and Technology, University of California-Davis, Davis, CA 95616, USA
| | - Ameer Y. Taha
- Department of Food Science and Technology, University of California-Davis, Davis, CA 95616, USA
| | - John P. Capitanio
- California National Primate Research Center, University of California-Davis, Davis, CA 95616, USA
| | - Melissa D. Bauman
- California National Primate Research Center, University of California-Davis, Davis, CA 95616, USA
- The UC Davis MIND Institute, University of California-Davis, Sacramento, CA 95817, USA
- Department of Psychiatry and Behavioral Sciences, University of California-Davis, Sacramento, CA 95817, USA
| | - Mari S. Golub
- California National Primate Research Center, University of California-Davis, Davis, CA 95616, USA
| | - Judy Van de Water
- The UC Davis MIND Institute, University of California-Davis, Sacramento, CA 95817, USA
- Department of Internal Medicine, University of California-Davis, Sacramento, CA 95817, USA
| | - Catherine A. VandeVoort
- California National Primate Research Center, University of California-Davis, Davis, CA 95616, USA
- Department of Obstetrics and Gynecology, University of California-Davis, Davis, CA 95616, USA
| | - Cheryl K. Walker
- California National Primate Research Center, University of California-Davis, Davis, CA 95616, USA
- Department of Obstetrics and Gynecology, University of California-Davis, Davis, CA 95616, USA
| | - Carolyn M. Slupsky
- Department of Food Science and Technology, University of California-Davis, Davis, CA 95616, USA
- Department of Nutrition, University of California-Davis, Davis, CA 95616, USA
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4
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Capitanio JP, Del Rosso LA, Gee N, Lasley BL. Adverse biobehavioral effects in infants resulting from pregnant rhesus macaques' exposure to wildfire smoke. Nat Commun 2022; 13:1774. [PMID: 35365649 PMCID: PMC8975955 DOI: 10.1038/s41467-022-29436-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Accepted: 03/16/2022] [Indexed: 12/20/2022] Open
Abstract
As wildfires across the world increase in number, size, and intensity, exposure to wildfire smoke (WFS) is a growing health problem. To date, however, little is known for any species on what might be the behavioral or physiological consequences of prenatal exposure to WFS. Here we show that infant rhesus monkeys exposed to WFS in the first third of gestation (n = 52) from the Camp Fire (California, November, 2018) show greater inflammation, blunted cortisol, more passive behavior, and memory impairment compared to animals conceived after smoke had dissipated (n = 37). Parallel analyses, performed on a historical control cohort (n = 2490), did not support the alternative hypothesis that conception timing alone could explain the results. We conclude that WFS may have a teratogenic effect on the developing fetus and speculate on mechanisms by which WFS might affect neural development. Little is known about the consequences of prenatal exposure to wildfire smoke on biobehavioural outcomes. Here, the authors show that infant rhesus monkeys exposed early in gestation to wildfire smoke from the 2018 Camp Fire in California show more inflammation, blunted cortisol and altered behaviour outcomes compared to non-exposed animals.
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Affiliation(s)
- John P Capitanio
- California National Primate Research Center, University of California, Davis, CA, USA. .,Department of Psychology, University of California, Davis, CA, USA.
| | - Laura A Del Rosso
- California National Primate Research Center, University of California, Davis, CA, USA
| | - Nancy Gee
- Center for Health and the Environment, University of California, Davis, CA, USA
| | - Bill L Lasley
- Center for Health and the Environment, University of California, Davis, CA, USA
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5
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Vlasova RM, Iosif AM, Ryan AM, Funk LH, Murai T, Chen S, Lesh TA, Rowland DJ, Bennett J, Hogrefe CE, Maddock RJ, Gandal MJ, Geschwind DH, Schumann CM, Van de Water J, McAllister AK, Carter CS, Styner MA, Amaral DG, Bauman MD. Maternal Immune Activation during Pregnancy Alters Postnatal Brain Growth and Cognitive Development in Nonhuman Primate Offspring. J Neurosci 2021; 41:9971-9987. [PMID: 34607967 PMCID: PMC8638691 DOI: 10.1523/jneurosci.0378-21.2021] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 07/28/2021] [Accepted: 09/06/2021] [Indexed: 11/21/2022] Open
Abstract
Human epidemiological studies implicate exposure to infection during gestation in the etiology of neurodevelopmental disorders. Animal models of maternal immune activation (MIA) have identified the maternal immune response as the critical link between maternal infection and aberrant offspring brain and behavior development. Here we evaluate neurodevelopment of male rhesus monkeys (Macaca mulatta) born to MIA-treated dams (n = 14) injected with a modified form of the viral mimic polyinosinic:polycytidylic acid at the end of the first trimester. Control dams received saline injections at the same gestational time points (n = 10) or were untreated (n = 4). MIA-treated dams exhibited a strong immune response as indexed by transient increases in sickness behavior, temperature, and inflammatory cytokines. Although offspring born to control or MIA-treated dams did not differ on measures of physical growth and early developmental milestones, the MIA-treated animals exhibited subtle changes in cognitive development and deviated from species-typical brain growth trajectories. Longitudinal MRI revealed significant gray matter volume reductions in the prefrontal and frontal cortices of MIA-treated offspring at 6 months that persisted through the final time point at 45 months along with smaller frontal white matter volumes in MIA-treated animals at 36 and 45 months. These findings provide the first evidence of early postnatal changes in brain development in MIA-exposed nonhuman primates and establish a translationally relevant model system to explore the neurodevelopmental trajectory of risk associated with prenatal immune challenge from birth through late adolescence.SIGNIFICANCE STATEMENT Women exposed to infection during pregnancy have an increased risk of giving birth to a child who will later be diagnosed with a neurodevelopmental disorder. Preclinical maternal immune activation (MIA) models have demonstrated that the effects of maternal infection on fetal brain development are mediated by maternal immune response. Since the majority of MIA models are conducted in rodents, the nonhuman primate provides a unique system to evaluate the MIA hypothesis in a species closely related to humans. Here we report the first longitudinal study conducted in a nonhuman primate MIA model. MIA-exposed offspring demonstrate subtle changes in cognitive development paired with marked reductions in frontal gray and white matter, further supporting the association between prenatal immune challenge and alterations in offspring neurodevelopment.
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Affiliation(s)
- Roza M Vlasova
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, 27514
| | - Ana-Maria Iosif
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Amy M Ryan
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
- The MIND Institute, School of Medicine, University of California, Davis, Sacramento, California, 95817
- California National Primate Research Center, University of California, Davis, California, 95616
| | - Lucy H Funk
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Takeshi Murai
- California National Primate Research Center, University of California, Davis, California, 95616
| | - Shuai Chen
- Division of Biostatistics, Department of Public Health Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Tyler A Lesh
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Douglas J Rowland
- Center for Genomic and Molecular Imaging, University of California, Davis, California, 95616
| | - Jeffrey Bennett
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Casey E Hogrefe
- California National Primate Research Center, University of California, Davis, California, 95616
| | - Richard J Maddock
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Michael J Gandal
- Neurogenetics Program, Department of Neurology, University of California, Los Angeles, California, 90095
| | - Daniel H Geschwind
- Neurogenetics Program, Department of Neurology, University of California, Los Angeles, California, 90095
| | - Cynthia M Schumann
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
- The MIND Institute, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Judy Van de Water
- The MIND Institute, School of Medicine, University of California, Davis, Sacramento, California, 95817
- Rheumatology/Allergy and Clinical Immunology, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - A Kimberley McAllister
- The MIND Institute, School of Medicine, University of California, Davis, Sacramento, California, 95817
- Center for Neuroscience, University of California, Davis, California, 95618
| | - Cameron S Carter
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
| | - Martin A Styner
- Department of Psychiatry, University of North Carolina, Chapel Hill, North Carolina, 27514
- Department of Computer Science, University of North Carolina, Chapel Hill, North Carolina, 27599
| | - David G Amaral
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
- The MIND Institute, School of Medicine, University of California, Davis, Sacramento, California, 95817
- California National Primate Research Center, University of California, Davis, California, 95616
| | - Melissa D Bauman
- Department of Psychiatry and Behavioral Sciences, School of Medicine, University of California, Davis, Sacramento, California, 95817
- The MIND Institute, School of Medicine, University of California, Davis, Sacramento, California, 95817
- California National Primate Research Center, University of California, Davis, California, 95616
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6
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Walker CK, VandeVoort CA, Li CS, Chaffin CL, Capitanio JP. Adiposity and weight gain during pregnancy associate independently with behavior of infant rhesus monkeys (Macaca mulatta). Dev Psychobiol 2018; 60:629-638. [PMID: 29900528 DOI: 10.1002/dev.21744] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2017] [Revised: 02/17/2018] [Accepted: 03/12/2018] [Indexed: 12/27/2022]
Abstract
Growing evidence identifies maternal adiposity as a potentially modifiable risk factor for adverse neurodevelopment. This retrospective cohort analysis examined whether maternal prepregnancy adiposity and gestational weight gain were associated with behavioral outcomes in 173 rhesus macaque infants at the California National Primate Research Center. Dams conceived indoors, had uncomplicated pregnancies, delivered vaginally, and reared infants indoors. Infants underwent standardized biobehavioral analysis at 90-120 days of age from 3/2001-5/2015. Offspring of mothers with greater baseline adiposity or gestational weight gain exhibited a pattern of poor adaptability characterized by greater emotionality as the assessments proceeded, blunted affective response to a human intruder challenge, and reduced interest in novel stimuli which is associated with poorer social functioning later in life. They also had lower cortisol levels following dexamethasone suppression, perhaps a response to cortisol excess during gestation. These results amplify growing public health concerns implicating maternal adiposity in impaired fetal neurobehavioral programming.
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Affiliation(s)
- Cheryl K Walker
- Department of Obstetrics and Gynecology, School of Medicine, University of California, Davis, California.,Medical Investigation of Neurodevelopmental Disorders (MIND) Institute, University of California, Davis, California.,California National Primate Research Center, University of California, Davis, California
| | - Catherine A VandeVoort
- Department of Obstetrics and Gynecology, School of Medicine, University of California, Davis, California.,California National Primate Research Center, University of California, Davis, California
| | - Chin-Shang Li
- Division of Biostatistics, Department of Public Health Sciences, University of California, Davis, California
| | - Charles L Chaffin
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of Maryland, Baltimore, Maryland
| | - John P Capitanio
- California National Primate Research Center, University of California, Davis, California.,Department of Psychology, University of California, Davis, California
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7
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Kelleher MA, Liu Z, Wang X, Kroenke CD, Houser LA, Dozier BL, Martin LD, Waites KB, McEvoy C, Schelonka RL, Grigsby PL. Beyond the uterine environment: a nonhuman primate model to investigate maternal-fetal and neonatal outcomes following chronic intrauterine infection. Pediatr Res 2017; 82:244-252. [PMID: 28422948 PMCID: PMC5552412 DOI: 10.1038/pr.2017.57] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/03/2016] [Accepted: 02/17/2017] [Indexed: 12/25/2022]
Abstract
BackgroundIntrauterine infection is a significant cause of early preterm birth. We have developed a fetal-neonatal model in the rhesus macaque to determine the impact of chronic intrauterine infection with Ureaplasma parvum on early neonatal reflexes and brain development.MethodsTime-mated, pregnant rhesus macaques were randomized to be inoculated with U. parvum (serovar 1; 105 c.f.u.) or control media at ~120 days' gestational age (dGA). Neonates were delivered by elective hysterotomy at 135-147 dGA (term=167d), stabilized, and cared for in our nonhuman primate neonatal intensive care unit. Neonatal reflex behaviors were assessed from birth, and fetal and postnatal brain magnetic resonance imaging (MRI) was performed.ResultsA total of 13 preterm and 5 term macaque infants were included in the study. Ten preterm infants survived to 6 months of age. U. parvum-infected preterm neonates required more intensive respiratory support than did control infants. MRI studies suggested a potential perturbation of brain growth and white matter maturation with exposure to intra-amniotic infection.ConclusionWe have demonstrated the feasibility of longitudinal fetal-neonatal studies in the preterm rhesus macaque after chronic intrauterine infection. Future studies will examine long-term neurobehavioral outcomes, cognitive development, neuropathology, and in vivo brain imaging to determine the safety of antenatal antibiotic treatment for intrauterine infection.
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Affiliation(s)
- Meredith A. Kelleher
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR,Corresponding Author: Meredith A. Kelleher, PhD, Division of Reproductive & Developmental Sciences. Oregon National Primate Research Center. 505 NW 185th Ave, Beaverton, OR 97006 USA. pH: 503-629-4011; Fax: 503-690-5563;
| | - Zheng Liu
- Advanced Imaging Center, Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR
| | - Xiaojie Wang
- Advanced Imaging Center, Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR
| | - Christopher D. Kroenke
- Advanced Imaging Center, Oregon National Primate Research Center, Oregon Health & Science University, Portland, OR
| | - Lisa A. Houser
- Division of Comparative Medicine, Oregon National Primate Research Center, Beaverton, OR
| | - Brandy L. Dozier
- Division of Comparative Medicine, Oregon National Primate Research Center, Beaverton, OR
| | - Lauren D. Martin
- Division of Comparative Medicine, Oregon National Primate Research Center, Beaverton, OR
| | - Ken B. Waites
- Department of Pathology, University of Alabama at Birmingham School of Medicine, Birmingham, AL
| | - Cindy McEvoy
- Department of Pediatrics, Division of Neonatology, Oregon Health & Science University, Portland, OR
| | - Robert L. Schelonka
- Department of Pediatrics, Division of Neonatology, Oregon Health & Science University, Portland, OR
| | - Peta L. Grigsby
- Division of Reproductive & Developmental Sciences, Oregon National Primate Research Center, Beaverton, OR,Department of Obstetrics & Gynecology, Oregon Health & Science University, Portland, OR
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8
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Winters S, Dubuc C, Higham JP. Perspectives: The Looking Time Experimental Paradigm in Studies of Animal Visual Perception and Cognition. Ethology 2015. [DOI: 10.1111/eth.12378] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sandra Winters
- Department of Anthropology; New York University; New York NY USA
| | - Constance Dubuc
- Department of Anthropology; New York University; New York NY USA
| | - James P. Higham
- Department of Anthropology; New York University; New York NY USA
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