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Lo JO, Schabel MC, Gaffney J, Lewandowski KS, Kroenke CD, Roberts CT, Scottoline BP, Frias AE, Sullivan EL, Roberts VHJ. Impaired placental hemodynamics and function in a non-human primate model of gestational protein restriction. Sci Rep 2023; 13:841. [PMID: 36646824 PMCID: PMC9842719 DOI: 10.1038/s41598-023-28051-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 01/11/2023] [Indexed: 01/18/2023] Open
Abstract
Maternal malnutrition increases fetal and neonatal morbidity, partly by affecting placental function and morphology, but its impact on placental hemodynamics are unknown. Our objective was to define the impact of maternal malnutrition on placental oxygen reserve and perfusion in vivo in a rhesus macaque model of protein restriction (PR) using advanced imaging. Animals were fed control (CON, 26% protein), 33% PR diet (17% protein), or a 50% PR diet (13% protein, n = 8/group) preconception and throughout pregnancy. Animals underwent Doppler ultrasound and fetal biometry followed by MRI at gestational days 85 (G85) and 135 (G135; term is G168). Pregnancy loss rates were 0/8 in CON, 1/8 in 33% PR, and 3/8 in 50% PR animals. Fetuses of animals fed a 50% PR diet had a smaller abdominal circumference (G135, p < 0.01). On MRI, placental blood flow was decreased at G135 (p < 0.05) and placental oxygen reserve was reduced (G85, p = 0.05; G135, p = 0.01) in animals fed a 50% PR diet vs. CON. These data demonstrate that a 50% PR diet reduces maternal placental perfusion, decreases fetal oxygen availability, and increases fetal mortality. These alterations in placental hemodynamics may partly explain human growth restriction and stillbirth seen with severe PR diets in the developing world.
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Affiliation(s)
- Jamie O Lo
- Department of Obstetrics and Gynecology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Mail Code L458, Portland, OR, 97239, USA. .,Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA.
| | - Matthias C Schabel
- Advanced Imaging Research Center, Oregon Health and Science University, Portland, OR, USA
| | - Jessica Gaffney
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Katherine S Lewandowski
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Christopher D Kroenke
- Advanced Imaging Research Center, Oregon Health and Science University, Portland, OR, USA.,Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Charles T Roberts
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA.,Division of Cardiometabolic Health, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
| | - Brian P Scottoline
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA.,Department of Pediatrics, Oregon Health and Science University, Portland, OR, USA
| | - Antonio E Frias
- Department of Obstetrics and Gynecology, Oregon Health and Science University, 3181 SW Sam Jackson Park Road, Mail Code L458, Portland, OR, 97239, USA
| | - Elinor L Sullivan
- Division of Neuroscience, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA.,Department of Psychiatry, Oregon Health and Science University, Portland, OR, USA
| | - Victoria H J Roberts
- Division of Reproductive and Developmental Sciences, Oregon National Primate Research Center, Oregon Health and Science University, Beaverton, OR, USA
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Alekseenkova EN, Selkov SA, Kapustin RV. Fetal growth regulation via insulin-like growth factor axis in normal and diabetic pregnancy. J Perinat Med 2022; 50:947-960. [PMID: 35363447 DOI: 10.1515/jpm-2021-0510] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2021] [Accepted: 02/20/2022] [Indexed: 01/29/2023]
Abstract
OBJECTIVES Diabetes mellitus (DM) in pregnancy and gestational diabetes remain a considerable cause of pregnancy complications, and fetal macrosomia is among them. Insulin, insulin-like growth factors (IGFs), and components of their signal-transduction axes belong to the predominant growth regulators and are implicated in glucose homeostasis. This study aimed to evaluate the available evidence on the association between the IGF axis and fetal anthropometric parameters in human diabetic pregnancy. METHODS PubMed, Medline, Web of Science, and CNKI databases (1981-2021) were searched. RESULTS Maternal and cord serum IGF-I levels are suggested to be positively associated with weight and length of neonates born to mothers with type 1 DM. The results concerning IGF-II and IGFBPs in type 1 DM or any of the IGF axis components in type 2 DM remain controversial. The alterations of maternal serum IGFs concentrations throughout diabetic and non-diabetic pregnancy do not appear to be the same. Maternal 1st trimester IGF-I level is positively associated with fetal birth weight in DM. CONCLUSIONS Research on the IGF axis should take gestational age of sampling, presence of DM, and insulin administration into account. Maternal 1st trimester IGF-I level might become a predictor for macrosomia development in diabetic pregnancy.
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Affiliation(s)
- Elena N Alekseenkova
- D.O. Ott Research Institute of Obstetrics, Gynecology, and Reproductive Medicine, St Petersburg, Russian Federation
| | - Sergey A Selkov
- D.O. Ott Research Institute of Obstetrics, Gynecology, and Reproductive Medicine, St Petersburg, Russian Federation
| | - Roman V Kapustin
- D.O. Ott Research Institute of Obstetrics, Gynecology, and Reproductive Medicine, St Petersburg, Russian Federation.,Department of Obstetrics, Gynecology and Reproduction, Faculty of Medicine, St Petersburg State University, St Petersburg, Russian Federation
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Wood EK, Sullivan EL. The Influence of Diet on Metabolism and Health Across the Lifespan in Nonhuman Primates. CURRENT OPINION IN ENDOCRINE AND METABOLIC RESEARCH 2022; 24. [PMID: 35425871 DOI: 10.1016/j.coemr.2022.100336] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The macro and micronutrient composition and the overall quantity of the diet are important predictors of physical and psychological health and, as a consequence, behavior. Translational preclinical models are critical to identifying the mechanisms underlying these relationships. Nonhuman primate models are particularly instrumental to this line of research as they exhibit considerable genetic, social, and physiological similarities, as well as similarities in their developmental trajectories to humans. This review aims to discuss recent contributions to the field of diet and metabolism and health using nonhuman primate models. The influence of diet composition on health and physiology across the lifespan will be the primary focus, including recent work examining the impact of maternal diet programming of offspring physiologic and behavioral developmental outcomes.
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Affiliation(s)
- Elizabeth K Wood
- Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239
| | - Elinor L Sullivan
- Oregon Health & Science University, 3181 SW Sam Jackson Park Road, Portland, OR 97239
- Oregon National Primate Research Center, 505 NW 185 Avenue, Beaverton, OR 97006
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