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Jahandideh F, Bourque SL, Armstrong EA, Cherak SJ, Panahi S, Macala KF, Davidge ST, Yager JY. Late-pregnancy uterine artery ligation increases susceptibility to postnatal Western diet-induced fat accumulation in adult female offspring. Sci Rep 2020; 10:6926. [PMID: 32332768 PMCID: PMC7181802 DOI: 10.1038/s41598-020-63392-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 02/28/2020] [Indexed: 12/16/2022] Open
Abstract
Stressors during the fetal and postnatal period affect the growth and developmental trajectories of offspring, causing lasting effects on physiologic regulatory systems. Here, we tested whether reduced uterine artery blood flow in late pregnancy would alter body composition in the offspring, and whether feeding offspring a western diet (WD) would aggravate these programming effects. Pregnant rats underwent bilateral uterine artery ligation (BUAL) or sham surgery on gestational day (GD)18 (term = GD22). At weaning, offspring from each group received either a normal diet (ND) or a WD. BUAL surgery increased fetal loss and caused offspring growth restriction, albeit body weights were no longer different at weaning, suggesting postnatal catch-up growth. BUAL did not affect body weight gain, fat accumulation, or plasma lipid profile in adult male offspring. In contrast, while ND-fed females from BUAL group were smaller and leaner than their sham-littermates, WD consumption resulted in excess weight gain, fat accumulation, and visceral adiposity. Moreover, WD increased plasma triglycerides and cholesterol in the BUAL-treated female offspring without any effect on sham littermates. These results demonstrate that reduced uterine artery blood flow during late pregnancy in rodents can impact body composition in the offspring in a sex-dependent manner, and these effects may be exacerbated by postnatal chronic WD consumption.
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Affiliation(s)
- Forough Jahandideh
- Department of Anesthesiology & Pain Medicine, University of Alberta, Edmonton, Alberta, Canada.,Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada
| | - Stephane L Bourque
- Department of Anesthesiology & Pain Medicine, University of Alberta, Edmonton, Alberta, Canada.,Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Edward A Armstrong
- Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada
| | - Stephana J Cherak
- Department of Anesthesiology & Pain Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Sareh Panahi
- Department of Anesthesiology & Pain Medicine, University of Alberta, Edmonton, Alberta, Canada
| | - Kimberly F Macala
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Surgery, University of Alberta, Edmonton, Alberta, Canada
| | - Sandra T Davidge
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada.,Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Alberta, Canada
| | - Jerome Y Yager
- Women and Children's Health Research Institute, University of Alberta, Edmonton, Alberta, Canada. .,Department of Pediatrics, University of Alberta, Edmonton, Alberta, Canada.
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2
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Kooiman J, Terstappen F, van Wagensveld L, Franx A, Wever KE, Roseboom TJ, Joles JA, Gremmels H, Lely AT. Conflicting Effects of Fetal Growth Restriction on Blood Pressure Between Human and Rat Offspring: A Meta-Analysis. Hypertension 2020; 75:806-818. [PMID: 31983304 DOI: 10.1161/hypertensionaha.119.14111] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Low birth weight is associated with hypertension. Low birth weight can result from fetal growth restriction (FGR) or prematurity. FGR is postulated to impact blood pressure (BP) by developmental programming. This systematic review and meta-analysis studies BP in human and animal offspring following FGR. Pubmed and Web of Science were searched for studies reporting on BP after placental insufficiency induced FGR compared with normal growth controls. Primary outcome was mean absolute BP difference (ΔBP mm Hg [95% CI]). Meta-analysis was performed using random-effects models. Subgroup analyses were executed on species, sex, age, pregnancy duration, and stress during BP readings. Due to large interspecies heterogeneity, analyses were performed separately for human (n=41) and animal (n=31) studies, the latter restricted to rats (n=27). Human studies showed a ΔBP between FGR and controls of -0.6 mm Hg ([95% CI, -1.7 to 0.6]; I2=91%). Mean ΔBP was -2.6 mm Hg (95% CI, -5.7 to 0.4) in women versus -0.5 mm Hg (95% CI, -3.7 to 2.7) in men. Subgroup analyses did not indicate age, gestational age, and stress during measurements as sources of heterogeneity. In rats, mean BP was 12.0 mm Hg ([95% CI, 8.8-15.2]; I2=81%) higher in FGR offspring. This difference was more pronounced in FGR males (13.6 mm Hg [95% CI, 10.3-17.0] versus 9.1 mm Hg [95% CI, 5.3-12.8]). Subgroup analyses on age showed no statistical interaction. BP readings under restrained conditions resulted in larger BP differences between FGR and control rats (15.3 mm Hg [95% CI, 11.6-18.9] versus 5.7 mm Hg [95% CI, 1.1-10.3]). Rat studies confirm the relation between FGR and offspring BP, while observational studies in humans do not show such differences. This may be due to the observational nature of human studies, methodological limitations, or an absence of this phenomenon in humans. Clinical Trial Registration URL: http://www.clinicaltrials.gov. Unique identifier: CRD42018091819.
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Affiliation(s)
- Judith Kooiman
- From the Department of Obstetrics (J.K., F.T., L.v.W., A.F., A.T.L.), University Medical Center Utrecht, the Netherlands
| | - Fieke Terstappen
- From the Department of Obstetrics (J.K., F.T., L.v.W., A.F., A.T.L.), University Medical Center Utrecht, the Netherlands.,Department of Developmental Origin of Disease (F.T.), University Medical Center Utrecht, the Netherlands
| | - Lilian van Wagensveld
- From the Department of Obstetrics (J.K., F.T., L.v.W., A.F., A.T.L.), University Medical Center Utrecht, the Netherlands
| | - Arie Franx
- From the Department of Obstetrics (J.K., F.T., L.v.W., A.F., A.T.L.), University Medical Center Utrecht, the Netherlands
| | - Kimberley E Wever
- Systematic Review Center for Laboratory animal Experimentation (SYRCLE), Department for Health Evidence, Radboud University Medical Center, Nijmegen, the Netherlands (K.E.W.)
| | - Tessa J Roseboom
- Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Obstetrics and Gynecology, Amsterdam Public Health Research Institute, Amsterdam Reproduction and Development Research Institute, Amsterdam UMC, University of Amsterdam, the Netherlands (T.J.R.)
| | - Jaap A Joles
- Wilhelmina Children's Hospital and Department of Nephrology and Hypertension (J.A.J., H.G.), University Medical Center Utrecht, the Netherlands
| | - Hendrik Gremmels
- Wilhelmina Children's Hospital and Department of Nephrology and Hypertension (J.A.J., H.G.), University Medical Center Utrecht, the Netherlands
| | - A Titia Lely
- From the Department of Obstetrics (J.K., F.T., L.v.W., A.F., A.T.L.), University Medical Center Utrecht, the Netherlands
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3
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Ruiz D, Regnier SM, Kirkley AG, Hara M, Haro F, Aldirawi H, Dybala MP, Sargis RM. Developmental exposure to the endocrine disruptor tolylfluanid induces sex-specific later-life metabolic dysfunction. Reprod Toxicol 2019; 89:74-82. [PMID: 31260803 DOI: 10.1016/j.reprotox.2019.06.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 06/16/2019] [Accepted: 06/26/2019] [Indexed: 02/06/2023]
Abstract
Endocrine-disrupting chemicals (EDCs) are implicated in the developmental mis-programming of energy metabolism. This study examined the impact of combined gestational and lactational exposure to the fungicide tolylfluanid (TF) on metabolic physiology in adult offspring. C57BL/6 J dams received standard rodent chow or the same diet containing 67 mg/kg TF. Offspring growth and metabolism were assessed up to 22 weeks of age. TF-exposed offspring exhibited reduced weaning weight. Body weight among female offspring remained low throughout the study, while male offspring matched controls by 17 weeks of age. Female offspring exhibited reduced glucose tolerance, markedly enhanced systemic insulin sensitivity, reduced adiposity, and normal gluconeogenic capacity during adulthood. In contrast, male offspring exhibited impaired glucose tolerance with unchanged insulin sensitivity, no differences in adiposity, and increased gluconeogenic capacity. These data indicate that developmental exposure to TF induces sex-specific metabolic disruptions that recapitulate key aspects of other in utero growth restriction models.
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Affiliation(s)
- Daniel Ruiz
- Committee on Molecular Metabolism and Nutrition, Chicago, IL, United States; University of Chicago, Chicago, IL, United States
| | - Shane M Regnier
- Committee on Molecular Metabolism and Nutrition, Chicago, IL, United States; Pritzker School of Medicine, Chicago, IL, United States; University of Chicago, Chicago, IL, United States
| | - Andrew G Kirkley
- Committee on Molecular Pathogenesis and Molecular Medicine, Chicago, IL, United States; University of Chicago, Chicago, IL, United States
| | - Manami Hara
- Section of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Chicago, IL, United States; University of Chicago, Chicago, IL, United States
| | - Fidel Haro
- University of Chicago, Chicago, IL, United States
| | - Hani Aldirawi
- Department of Mathematics, Statistics, and Computer Science, University of Illinois at Chicago, Chicago, IL, United States
| | - Michael P Dybala
- Section of Endocrinology, Diabetes, and Metabolism, Department of Medicine, Chicago, IL, United States
| | - Robert M Sargis
- Division of Endocrinology, Diabetes, and Metabolism, Department of Medicine, University of Illinois at Chicago, Chicago, IL, United States.
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4
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Davis GK, Newsome AD, Cole AB, Ojeda NB, Alexander BT. Chronic Estrogen Supplementation Prevents the Increase in Blood Pressure in Female Intrauterine Growth-Restricted Offspring at 12 Months of Age. Hypertension 2019; 73:1128-1136. [PMID: 30929518 PMCID: PMC6458065 DOI: 10.1161/hypertensionaha.118.12379] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 03/04/2019] [Indexed: 01/14/2023]
Abstract
Low birth weight is associated with a greater prevalence of hypertension and an earlier age at menopause in women in later life. Yet, the association between birth weight and blood pressure (BP) in women as they age is not well defined. In a rodent model of low birth weight induced by placental insufficiency, intrauterine growth restriction programs a significant increase in BP by 12 months of age in female growth-restricted offspring that is associated with early reproductive senescence, increased testosterone, and a shift in the hormonal milieu. Thus, this study tested the hypothesis that increased BP in female growth-restricted offspring is abolished by chronic estradiol supplementation. Placebo or 17β-estradiol valerate mini pellets (1.5 mg for 60-day release) were administered at 12 months of age for 6 weeks. BP, measured in conscious catheterized rats, was significantly increased in placebo-treated growth-restricted relative to placebo-treated control. However, BP was not elevated in estradiol-treated growth-restricted relative to placebo-treated growth-restricted. Estradiol mediates its effects on BP via its receptors and the renin-angiotensin system. BP was decreased in growth-restricted offspring treated with a G-protein coupled receptor agonist, G1 (400 mg/kg for 2 weeks). Renal AT1aR (angiotensin type 1a receptor) and AT1bR (angiotensin type 1b receptor) and renal AR (androgen receptor) mRNA expression were elevated in vehicle-treated growth-restricted offspring, but not in G1-treated growth-restricted. Therefore, these data suggest that chronic estradiol supplementation prevents the increase in BP that develops in female growth-restricted offspring via actions that may involve its G-protein coupled receptor and the renin-angiotensin system.
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Affiliation(s)
- Gwendolyn K. Davis
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson MS, 39216
| | - Ashley D. Newsome
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson MS, 39216
| | - Alyssa B. Cole
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson MS, 39216
| | - Norma B. Ojeda
- Department of Physiology and Pediatrics, University of Mississippi Medical Center, Jackson MS, 39216
| | - Barbara T. Alexander
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson MS, 39216
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5
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Briffa JF, O'Dowd R, Romano T, Muhlhausler BS, Moritz KM, Wlodek ME. Reducing Pup Litter Size Alters Early Postnatal Calcium Homeostasis and Programs Adverse Adult Cardiovascular and Bone Health in Male Rats. Nutrients 2019; 11:nu11010118. [PMID: 30626125 PMCID: PMC6356436 DOI: 10.3390/nu11010118] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2018] [Revised: 12/19/2018] [Accepted: 01/03/2019] [Indexed: 12/22/2022] Open
Abstract
The in utero and early postnatal environments play essential roles in offspring growth and development. Standardizing or reducing pup litter size can independently compromise long-term health likely due to altered milk quality, thus limiting translational potential. This study investigated the effect reducing litter size has on milk quality and offspring outcomes. On gestation day 18, dams underwent sham or bilateral uterine vessel ligation surgery to generate dams with normal (Control) and altered (Restricted) milk quality/composition. At birth, pups were cross-fostered onto separate dams with either an unadjusted or reduced litter size. Plasma parathyroid hormone-related protein was increased in Reduced litter pups, whereas ionic calcium and total body calcium were decreased. These data suggest Reduced litter pups have dysregulated calcium homeostasis in early postnatal life, which may impair bone mineralization decreasing adult bone bending strength. Dams suckling Reduced litter pups had increased milk long-chain monounsaturated fatty acid and omega-3 docosahexaenoic acid. Reduced litter pups suckled by Normal milk quality/composition dams had increased milk omega-6 linoleic and arachidonic acids. Reduced litter male adult offspring had elevated blood pressure. This study highlights care must be taken when interpreting data from research that alters litter size as it may mask subtle cardiometabolic health effects.
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Affiliation(s)
- Jessica F Briffa
- Department of Physiology, The University of Melbourne, Parkville 3010, Australia.
| | - Rachael O'Dowd
- Department of Physiology, The University of Melbourne, Parkville 3010, Australia.
| | - Tania Romano
- Department of Physiology, The University of Melbourne, Parkville 3010, Australia.
- Department of Physiology, Anatomy and Microbiology, LaTrobe University, Bundoora 3083, Australia.
| | - Beverly S Muhlhausler
- Department of Food and Wine Science, School of Agriculture, Food and Wine, FOODplus Research Centre, The University of Adelaide, Adelaide 5064, Australia.
| | - Karen M Moritz
- Child Health Research Centre and School of Biomedical Sciences, The University of Queensland, St. Lucia 4101, Australia.
| | - Mary E Wlodek
- Department of Physiology, The University of Melbourne, Parkville 3010, Australia.
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6
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Abstract
Developmental programming resulting from maternal malnutrition can lead to an increased risk of metabolic disorders such as obesity, insulin resistance, type 2 diabetes and cardiovascular disorders in the offspring in later life. Furthermore, many conditions linked with developmental programming are also known to be associated with the aging process. This review summarizes the available evidence about the molecular mechanisms underlying these effects, with the potential to identify novel areas of therapeutic intervention. This could also lead to the discovery of new treatment options for improved patient outcomes.
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7
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Tarry-Adkins JL, Ozanne SE. Nutrition in early life and age-associated diseases. Ageing Res Rev 2017; 39:96-105. [PMID: 27594376 DOI: 10.1016/j.arr.2016.08.003] [Citation(s) in RCA: 57] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2016] [Revised: 03/24/2016] [Accepted: 08/05/2016] [Indexed: 02/06/2023]
Abstract
The prevalence of age-associated disease is increasing at a striking rate globally. It is known that a strong association exists between a suboptimal maternal and/or early-life environment and increased propensity of developing age-associated disease, including cardiovascular disease (CVD), type-2 diabetes (T2D) and obesity. The dissection of underlying molecular mechanisms to explain this phenomenon, which is known as 'developmental programming' is still emerging; however three common mechanisms have emerged in many models of developmental programming. These mechanisms are (a) changes in tissue structure, (b) epigenetic regulation and (c) accelerated cellular ageing. This review will examine the epidemiological evidence and the animal models of suboptimal maternal environments, focusing upon these molecular mechanisms and will discuss the progress being made in the development of safe and effective intervention strategies which ultimately could target those 'programmed' individuals who are known to be at-risk of age-associated disease.
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Affiliation(s)
- Jane L Tarry-Adkins
- University of Cambridge Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Institute of Metabolic Science, Level 4, Box 289, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Hills Road, Cambridge, CB2 OQQ, UK.
| | - Susan E Ozanne
- University of Cambridge Metabolic Research Laboratories and MRC Metabolic Diseases Unit, Institute of Metabolic Science, Level 4, Box 289, Addenbrooke's Treatment Centre, Addenbrooke's Hospital, Hills Road, Cambridge, CB2 OQQ, UK.
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8
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Briffa JF, O'Dowd R, Moritz KM, Romano T, Jedwab LR, McAinch AJ, Hryciw DH, Wlodek ME. Uteroplacental insufficiency reduces rat plasma leptin concentrations and alters placental leptin transporters: ameliorated with enhanced milk intake and nutrition. J Physiol 2017; 595:3389-3407. [PMID: 28369926 DOI: 10.1113/jp273825] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2016] [Accepted: 02/08/2017] [Indexed: 12/13/2022] Open
Abstract
KEY POINTS Uteroplacental insufficiency compromises maternal mammary development, milk production and pup organ development; this is ameliorated by cross-fostering, which improves pup growth and organ development and prevents adult diseases in growth-restricted (Restricted) offspring by enhancing postnatal nutrition. Leptin is transported to the fetus from the mother by the placenta; we report reduced plasma leptin concentrations in Restricted fetuses associated with sex-specific alterations in placental leptin transporter expression. Pup plasma leptin concentrations were also reduced during suckling, which may suggest reduced milk leptin transport or leptin reabsorption. Mothers suckled by Restricted pups had impaired mammary development and changes in milk fatty acid composition with no alterations in milk leptin; cross-fostering restored pup plasma leptin concentrations, which may be correlated to improved milk composition and intake. Increased plasma leptin and altered milk fatty acid composition in Restricted pups suckling mothers with normal lactation may improve postnatal growth and prevent adult diseases. ABSTRACT Uteroplacental insufficiency reduces birth weight and adversely affects fetal organ development, increasing adult disease risk. Cross-fostering improves postnatal nutrition and restores these deficits. Mothers with growth-restricted pups have compromised milk production and composition; however, the impact cross-fostering has on milk production and composition is unknown. Plasma leptin concentrations peak during the completion of organogenesis, which occurs postnatally in rats. Leptin is transferred to the fetus via the placenta and to the pup via the lactating mammary gland. This study investigated the effect of uteroplacental insufficiency on pup plasma leptin concentrations and placental leptin transporters. We additionally examined whether cross-fostering improves mammary development, milk composition and pup plasma leptin concentrations. Fetal growth restriction was induced by bilateral uterine vessel ligation surgery on gestation day 18 in Wistar Kyoto rats (termed uteroplacental insufficiency surgery mothers). Growth-restricted (Restricted) fetuses had reduced plasma leptin concentrations, persisting throughout lactation, and sex-specific alterations in placental leptin transporters. Mothers suckled by Restricted pups had impaired mammary development, altered milk fatty acid composition and increased plasma leptin concentrations, despite no changes in milk leptin. Milk intake was reduced in Restricted pups suckling uteroplacental insufficiency surgery mothers compared to Restricted pups suckling sham-operated mothers. Cross-fostering Restricted pups onto a sham-operated mother improved postnatal growth and restored plasma leptin concentrations compared to Restricted pups suckling uteroplacental insufficiency surgery mothers. Uteroplacental insufficiency alters leptin homeostasis. This is ameliorated with cross-fostering and enhanced milk fatty acid composition and consumption, which may protect the pups from developing adverse health conditions in adulthood.
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Affiliation(s)
- Jessica F Briffa
- Department of Physiology, The University of Melbourne, Victoria, 3010, Australia
| | - Rachael O'Dowd
- Department of Physiology, The University of Melbourne, Victoria, 3010, Australia
| | - Karen M Moritz
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, 4072, Australia
| | - Tania Romano
- Department of Human Biosciences, LaTrobe University, Bundoora, VIC, 3083, Australia
| | - Lisa R Jedwab
- Department of Physiology, The University of Melbourne, Victoria, 3010, Australia
| | - Andrew J McAinch
- Centre for Chronic Disease, College of Health and Biomedicine, Victoria University, St Albans, VIC, 3021, Australia
| | - Deanne H Hryciw
- Department of Physiology, The University of Melbourne, Victoria, 3010, Australia
| | - Mary E Wlodek
- Department of Physiology, The University of Melbourne, Victoria, 3010, Australia
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9
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Newsome AD, Davis GK, Ojeda NB, Alexander BT. Complications during pregnancy and fetal development: implications for the occurrence of chronic kidney disease. Expert Rev Cardiovasc Ther 2017; 15:211-220. [PMID: 28256177 PMCID: PMC5543771 DOI: 10.1080/14779072.2017.1294066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
INTRODUCTION Numerous epidemiological studies indicate an inverse association between birth weight and the risk for chronic kidney disease. Areas covered: Historically, the first studies to address the developmental origins of chronic disease focused on the inverse relationship between birth weight and blood pressure. A reduction in nephron number was a consistent finding in low birth weight individuals and experimental models of developmental insult. Recent studies indicate that a congenital reduction in renal reserve in conjunction with an increase in blood pressure that has its origins in fetal life increases vulnerability to renal injury and disease. Expert commentary: Limited experimental studies have investigated the mechanisms that contribute to the developmental origins of kidney disease. Several studies suggest that enhanced susceptibility to renal injury following a developmental insult is altered by sex and age. More in-depth studies are needed to clarify how low birth weight contributes to enhanced renal risk, and how sex and age influence this adverse relationship.
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Affiliation(s)
- Ashley D. Newsome
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS
| | - Gwendolyn K. Davis
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS
| | - Norma B. Ojeda
- Department of Pediatrics, University of Mississippi Medical Center, Jackson, MS
| | - Barbara T. Alexander
- Department of Physiology and Biophysics, University of Mississippi Medical Center, Jackson, MS
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10
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A review of fundamental principles for animal models of DOHaD research: an Australian perspective. J Dev Orig Health Dis 2016; 7:449-472. [DOI: 10.1017/s2040174416000477] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Epidemiology formed the basis of ‘the Barker hypothesis’, the concept of ‘developmental programming’ and today’s discipline of the Developmental Origins of Health and Disease (DOHaD). Animal experimentation provided proof of the underlying concepts, and continues to generate knowledge of underlying mechanisms. Interventions in humans, based on DOHaD principles, will be informed by experiments in animals. As knowledge in this discipline has accumulated, from studies of humans and other animals, the complexity of interactions between genome, environment and epigenetics, has been revealed. The vast nature of programming stimuli and breadth of effects is becoming known. As a result of our accumulating knowledge we now appreciate the impact of many variables that contribute to programmed outcomes. To guide further animal research in this field, the Australia and New Zealand DOHaD society (ANZ DOHaD) Animals Models of DOHaD Research Working Group convened at the 2nd Annual ANZ DOHaD Congress in Melbourne, Australia in April 2015. This review summarizes the contributions of animal research to the understanding of DOHaD, and makes recommendations for the design and conduct of animal experiments to maximize relevance, reproducibility and translation of knowledge into improving health and well-being.
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11
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Cheong JN, Wlodek ME, Moritz KM, Cuffe JSM. Programming of maternal and offspring disease: impact of growth restriction, fetal sex and transmission across generations. J Physiol 2016; 594:4727-40. [PMID: 26970222 PMCID: PMC5009791 DOI: 10.1113/jp271745] [Citation(s) in RCA: 106] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Accepted: 01/16/2016] [Indexed: 12/16/2022] Open
Abstract
Babies born small are at an increased risk of developing myriad adult diseases. While growth restriction increases disease risk in all individuals, often a second hit is required to unmask 'programmed' impairments in physiology. Programmed disease outcomes are demonstrated more commonly in male offspring compared with females, with these sex-specific outcomes partly attributed to different placenta-regulated growth strategies of the male and female fetus. Pregnancy is known to be a major risk factor for unmasking a number of conditions and can be considered a 'second hit' for women who were born small. As such, female offspring often develop impairments of physiology for the first time during pregnancy that present as pregnancy complications. Numerous maternal stressors can further increase the risk of developing a maternal complication during pregnancy. Importantly, these maternal complications can have long-term consequences for both the mother after pregnancy and the developing fetus. Conditions such as preeclampsia, gestational diabetes and hypertension as well as thyroid, liver and kidney diseases are all conditions that can complicate pregnancy and have long-term consequences for maternal and offspring health. Babies born to mothers who develop these conditions are often at a greater risk of developing disease in adulthood. This has implications as a mechanism for transmission of disease across generations. In this review, we discuss the evidence surrounding long-term intergenerational implications of being born small and/or experiencing stress during pregnancy on programming outcomes.
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Affiliation(s)
- Jean N Cheong
- Department of Physiology, Faculty of Medicine, Dentistry and Health Sciences, School of Biomedical Sciences, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Mary E Wlodek
- Department of Physiology, Faculty of Medicine, Dentistry and Health Sciences, School of Biomedical Sciences, University of Melbourne, Parkville, Victoria, 3010, Australia
| | - Karen M Moritz
- School of Biomedical Sciences, University of Queensland, St Lucia, Queensland, 4072, Australia
| | - James S M Cuffe
- School of Biomedical Sciences, University of Queensland, St Lucia, Queensland, 4072, Australia
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12
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Sferruzzi-Perri AN, Camm EJ. The Programming Power of the Placenta. Front Physiol 2016; 7:33. [PMID: 27014074 PMCID: PMC4789467 DOI: 10.3389/fphys.2016.00033] [Citation(s) in RCA: 128] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2015] [Accepted: 01/25/2016] [Indexed: 12/23/2022] Open
Abstract
Size at birth is a critical determinant of life expectancy, and is dependent primarily on the placental supply of nutrients. However, the placenta is not just a passive organ for the materno-fetal transfer of nutrients and oxygen. Studies show that the placenta can adapt morphologically and functionally to optimize substrate supply, and thus fetal growth, under adverse intrauterine conditions. These adaptations help meet the fetal drive for growth, and their effectiveness will determine the amount and relative proportions of specific metabolic substrates supplied to the fetus at different stages of development. This flow of nutrients will ultimately program physiological systems at the gene, cell, tissue, organ, and system levels, and inadequacies can cause permanent structural and functional changes that lead to overt disease, particularly with increasing age. This review examines the environmental regulation of the placental phenotype with particular emphasis on the impact of maternal nutritional challenges and oxygen scarcity in mice, rats and guinea pigs. It also focuses on the effects of such conditions on fetal growth and the developmental programming of disease postnatally. A challenge for future research is to link placental structure and function with clinical phenotypes in the offspring.
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Affiliation(s)
| | - Emily J Camm
- Department of Physiology, Development and Neuroscience, University of Cambridge Cambridge, UK
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