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Owen MD, Kennedy MG, Quilang RC, Scott EM, Forbes K. The role of microRNAs in pregnancies complicated by maternal diabetes. Clin Sci (Lond) 2024; 138:1179-1207. [PMID: 39289953 PMCID: PMC11409017 DOI: 10.1042/cs20230681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2024] [Revised: 08/14/2024] [Accepted: 09/05/2024] [Indexed: 09/19/2024]
Abstract
With the global prevalence of diabetes increasing, more people of reproductive age are experiencing hyperglycaemic pregnancies. Maternal Type 1 (T1DM) or Type 2 (T2DM) diabetes mellitus, and gestational diabetes mellitus (GDM) are associated with maternal cardiovascular and metabolic complications. Pregnancies complicated by maternal diabetes also increase the risk of short- and long-term health complications for the offspring, including altered fetal growth and the onset of T2DM and cardiometabolic diseases throughout life. Despite advanced methods for improving maternal glucose control, the prevalence of adverse maternal and offspring outcomes associated with maternal diabetes remains high. The placenta is a key organ at the maternal-fetal interface that regulates fetal growth and development. In pregnancies complicated by maternal diabetes, altered placental development and function has been linked to adverse outcomes in both mother and fetus. Emerging evidence suggests that microRNAs (miRNAs) are key molecules involved in mediating these changes. In this review, we describe the role of miRNAs in normal pregnancy and discuss how miRNA dysregulation in the placenta and maternal circulation is associated with suboptimal placental development and pregnancy outcomes in individuals with maternal diabetes. We also discuss evidence demonstrating that miRNA dysregulation may affect the long-term health of mothers and their offspring. As such, miRNAs are potential candidates as biomarkers and therapeutic targets in diabetic pregnancies at risk of adverse outcomes.
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Affiliation(s)
- Manon D Owen
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, U.K
| | - Margeurite G Kennedy
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, U.K
- Anthony Nolan Research Institute, Royal Free Hospital, Hampstead, London, U.K
- UCL Cancer Institute, Royal Free Campus, London, U.K
| | - Rachel C Quilang
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, U.K
- Department of Immunology, Leiden University Medical Center, Leiden, Netherlands
| | - Eleanor M Scott
- Division of Clinical and Population Sciences, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, U.K
| | - Karen Forbes
- Discovery and Translational Science Department, Leeds Institute of Cardiovascular and Metabolic Medicine, Faculty of Medicine and Health, University of Leeds, Leeds, U.K
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Zafaranieh S, Dieberger AM, Leopold-Posch B, Huppertz B, Granitzer S, Hengstschläger M, Gundacker C, Desoye G, van Poppel MNM. Physical Activity and Sedentary Time in Pregnancy: An Exploratory Study on Oxidative Stress Markers in the Placenta of Women with Obesity. Biomedicines 2022; 10:biomedicines10051069. [PMID: 35625806 PMCID: PMC9138298 DOI: 10.3390/biomedicines10051069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 04/28/2022] [Accepted: 04/29/2022] [Indexed: 02/05/2023] Open
Abstract
Regular moderate-to-vigorous physical activity (MVPA) and reduced sedentary time (ST) improve maternal glucose metabolism in pregnancy. More MVPA and less ST outside pregnancy increase antioxidant capacity, hence, are beneficial in preventing oxidative stress. The placenta is the first line of defense for the fetus from an adverse maternal environment, including oxidative stress. However, effects of MVPA and ST on oxidative stress markers in the placenta are unknown. The purpose of this study was to assess the association of MVPA and ST in pregnancy with oxidative stress markers in placentas of overweight/obese women (BMI ≥ 29 kg/m2). MVPA and ST were objectively measured with accelerometers at <20 weeks, 24−27 and 35−37 weeks of gestation. Using linear Bayesian multilevel models, the associations of MVPA and ST (mean and changes) with mRNA expression of a panel of 11 oxidative stress related markers were assessed in 96 women. MVPA was negatively correlated with HSP70 mRNA expression in a sex-independent manner and with GCLM expression only in placentas of female fetuses. ST was positively associated with HO-1 mRNA expression in placentas of male neonates. None of the other markers were associated with MVPA or ST. We speculate that increasing MVPA and reducing ST attenuates the oxidative stress state in placentas of obese pregnant women.
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Affiliation(s)
- Saghi Zafaranieh
- Institute of Human Movement Science, Sport and Health, University of Graz, 8010 Graz, Austria;
| | - Anna M. Dieberger
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (A.M.D.); (B.L.-P.); (G.D.)
| | - Barbara Leopold-Posch
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (A.M.D.); (B.L.-P.); (G.D.)
| | - Berthold Huppertz
- Division of Cell Biology, Histology and Embryology, Gottfried Schatz Research Center, Medical University of Graz, 8010 Graz, Austria;
| | - Sebastian Granitzer
- Institute of Medical Genetics, Center for Pathobiochemistry and Genetics, Medical University of Vienna, 1090 Vienna, Austria; (S.G.); (M.H.); (C.G.)
- Karl-Landsteiner Private University for Health Sciences, 3500 Krems, Austria
| | - Markus Hengstschläger
- Institute of Medical Genetics, Center for Pathobiochemistry and Genetics, Medical University of Vienna, 1090 Vienna, Austria; (S.G.); (M.H.); (C.G.)
| | - Claudia Gundacker
- Institute of Medical Genetics, Center for Pathobiochemistry and Genetics, Medical University of Vienna, 1090 Vienna, Austria; (S.G.); (M.H.); (C.G.)
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, 8036 Graz, Austria; (A.M.D.); (B.L.-P.); (G.D.)
| | - Mireille N. M. van Poppel
- Institute of Human Movement Science, Sport and Health, University of Graz, 8010 Graz, Austria;
- Correspondence: ; Tel.: +43-(0)-316-380-2335
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Asadi P, Vessal M, Khorsand M, Takhshid MA. Erythrocyte glucose-6-phosphate dehydrogenase activity and risk of gestational diabetes. J Diabetes Metab Disord 2020; 18:533-541. [PMID: 31890679 DOI: 10.1007/s40200-019-00464-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/23/2019] [Accepted: 10/31/2019] [Indexed: 12/29/2022]
Abstract
Purpose Glucose-6-phosphate dehydrogenase (G6PD) is the regulating enzyme in the pentose phosphate pathway. A link between the activity of G6PD and diabetes mellitus has previously been reported. The association of G6PD activity with the pathogenesis of gestational diabetes mellitus (GDM) has not yet been investigated. The aim of the present study was to investigate the association of erythrocyte G6PD activity with major characteristics of GDM. Methods This case-control study was conducted at Hafez Hospital, Shiraz University of Medical Sciences, Shiraz, Iran from March to November 2017. Eighty-four age-matched pregnant women including GDM (n = 33), impaired glucose tolerance (IGT; n = 7), and normal glucose tolerance (NGT; n = 44) subjects were enrolled in this study. The levels of erythrocyte G6PD activity, fasting plasma glucose (FPG), insulin, malondialdehyde (MDA), and ferric reducing power (FRAP) of serum were measured. The level of homeostasis model for the assessment of insulin resistance (HOMA-IR) was calculated. The data were analyzed using SPSS software. P < 0.05 was considered statistically significant. Results The values of FPG, insulin, HOMA-IR, G6PD activity, and FRAP were significantly higher in GDM patients compared to NGT subjects. G6PD activity was correlated with FPG ((r = 0.224; P = 0.041). Binary logistic regression analysis revealed independent association of body mass index >25.88 [OR = 3.23, 95% CI 1.071-9.75, P = 0.037], HOMA- IR >2.33 [OR = 7.15, 95% CI 2.26-22.56, P < 0.001], and G6PD activity>21.17 U/g Hb [OR = 4.63, 95% CI 1.49-14.38, P = 0.008] with an increased risk of GDM. No significant change was observed among serum MDA levels in the three groups. Conclusion The findings demonstrate that increased G6PD activity is positively associated with the risk of GDM.
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Affiliation(s)
- Parvaneh Asadi
- 1Department of Molecular Biology-Biochemistry, Islamic Azad University, Shiraz Branch, Shiraz, Iran
| | - Mahmood Vessal
- 1Department of Molecular Biology-Biochemistry, Islamic Azad University, Shiraz Branch, Shiraz, Iran
| | - Marjan Khorsand
- 2Diagnostic Laboratory Sciences and Technology Research Center, Faculty of Paramedical Sciences, Shiraz University of Medical Sciences, Meshkinfam Street, Shiraz, Iran
| | - Mohammad Ali Takhshid
- 2Diagnostic Laboratory Sciences and Technology Research Center, Faculty of Paramedical Sciences, Shiraz University of Medical Sciences, Meshkinfam Street, Shiraz, Iran
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Oxidative Stress and Inflammation in Sows with Excess Backfat: Up-Regulated Cytokine Expression and Elevated Oxidative Stress Biomarkers in Placenta. Animals (Basel) 2019; 9:ani9100796. [PMID: 31615033 PMCID: PMC6826773 DOI: 10.3390/ani9100796] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 09/14/2019] [Accepted: 09/21/2019] [Indexed: 01/31/2023] Open
Abstract
Simple Summary Maternal obesity is associated with increased farrowing difficulties and influences the fetus, but the effect on placental inflammation, oxidative stress, and vascular development in swine remains unclear. In this study, we tested the hypothesis that maternal obesity blocks placental vascular development associated with maternal obesity-increased placental inflammation and oxidative stress in swine. The objective of this study was to evaluate the influence of body condition of sows to placental pro-inflammatory and oxidative stress status and placental angiogenesis. we found that higher backfat thickness in sows is associated with enhanced oxidative stress, increased expression of pro-inflammation cytokines, and inhibited angiogenesis in the placenta. Therefore, reasonable control of body conditions during reproductive cycles may improve placenta development and maintain a healthy placenta environment. Abstract In sows, excess backfat during late gestation is associated with increased farrowing difficulties and influences the fetus, but the impact of backfat thickness on placental inflammation, oxidative stress, and vascular development has not been defined. In this study, 120 sows were divided into six groups based on backfat thickness (≤16, 17–18, 19–20, 21–22, 23–24, and ≥25 mm) in late gestation. The placental lipids, reactive oxygen species (ROS), malondialdehyde (MDA), and total antioxidant capacity (TAC) levels, inflammatory-related cytokine and angiogenesis were determined. The concentrations of triglycerides, total cholesterol, low density lipoprotein cholesterol (LDL–C), and free fatty acid (FFA) linearly increased (p < 0.05) associated with increased late gestation backfat. ROS and MDA increased and TAC decreased (p < 0.05) as the backfat thickness increased. The mRNA expression of toll-like receptors (TLR) 2, TLR4, tumor necrosis factor (TNF) α, interleukin (IL)–1β, IL–6, and monocyte chemoattractant protein (MCP)–1 increased with increased backfat in late gestation. There were no differences in IL–8 and IL–10 mRNA expression among sows with different backfat thickness. Placental vessel density initially increased and then decreased with increasing backfat thickness of sows. Similarly, the mRNA levels of vascular endothelial growth factor (VEGF) were also increased and then decreased. Excessive backfat in late gestation was associated with greater oxidative stress, greater expression of proinflammatory cytokines, and decreased expression of placental angiogenic regulators.
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Skórzyńska-Dziduszko KE, Kimber-Trojnar Ż, Patro-Małysza J, Stenzel-Bembenek A, Oleszczuk J, Leszczyńska-Gorzelak B. Heat Shock Proteins as a Potential Therapeutic Target in the Treatment of Gestational Diabetes Mellitus: What We Know so Far. Int J Mol Sci 2018; 19:ijms19103205. [PMID: 30336561 PMCID: PMC6213996 DOI: 10.3390/ijms19103205] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 10/14/2018] [Accepted: 10/15/2018] [Indexed: 12/16/2022] Open
Abstract
Gestational diabetes mellitus (GDM) is a complex condition that involves a variety of pathological mechanisms, including pancreatic β-cell failure, insulin resistance, and inflammation. There is an increasing body of literature suggesting that these interrelated phenomena may arise from the common mechanism of endoplasmic reticulum (ER) stress. Both obesity-associated nutrient excess and hyperglycemia disturb ER function in protein folding and transport. This results in the accumulation of polypeptides in the ER lumen and impairs insulin secretion and signaling. Exercise elicits metabolic adaptive responses, which may help to restore normal chaperone expression in insulin-resistant tissues. Pharmacological induction of chaperones, mimicking the metabolic effect of exercise, is a promising therapeutic tool for preventing GDM by maintaining the body's natural stress response. Metformin, a commonly used diabetes medication, has recently been identified as a modulator of ER-stress-associated inflammation. The results of recent studies suggest the potential use of chemical ER chaperones and antioxidant vitamins as therapeutic interventions that can prevent glucose-induced ER stress in GDM placentas. In this review, we discuss whether chaperones may significantly contribute to the pathogenesis of GDM, as well as whether they can be a potential therapeutic target in GDM treatment.
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Affiliation(s)
| | - Żaneta Kimber-Trojnar
- Department of Obstetrics and Perinatology, Medical University of Lublin, K. Jaczewskiego 8 Street, 20-954 Lublin, Poland.
| | - Jolanta Patro-Małysza
- Department of Obstetrics and Perinatology, Medical University of Lublin, K. Jaczewskiego 8 Street, 20-954 Lublin, Poland.
| | - Agnieszka Stenzel-Bembenek
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, W. Chodźki 1 Street, 20-093 Lublin, Poland.
| | - Jan Oleszczuk
- Department of Obstetrics and Perinatology, Medical University of Lublin, K. Jaczewskiego 8 Street, 20-954 Lublin, Poland.
| | - Bożena Leszczyńska-Gorzelak
- Department of Obstetrics and Perinatology, Medical University of Lublin, K. Jaczewskiego 8 Street, 20-954 Lublin, Poland.
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The effect of oxidative stress induced by tert-butylhydroperoxide under distinct folic acid conditions: An in vitro study using cultured human trophoblast-derived cells. Reprod Toxicol 2018; 77:33-42. [PMID: 29425713 DOI: 10.1016/j.reprotox.2018.02.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 02/02/2018] [Accepted: 02/05/2018] [Indexed: 12/14/2022]
Abstract
Preeclampsia is a pregnancy disorder characterized by high maternal blood pressure, fetal growth restriction and intrauterine hypoxia. Folic acid is a vitamin required during pregnancy. In this work, we investigated the relationship between preeclampsia and the intake of distinct doses of folic acid during pregnancy. Considering that preeclampsia is associated with increased placental oxidative stress levels, we investigated the effect of oxidative stress induced by tert-butylhydroperoxide (TBH) in human trophoblast-derived cells cultured upon deficient/low, physiological and supra-physiological folic acid levels. The negative effect of TBH upon thiobarbituric acid reactive substances (TBARS), total, reduced and oxidized glutathione, cell viability, cell proliferation, culture growth and cell migration was more marked under folic acid excess. This study suggests more attention on the dose administered, and ultimately, on the overall folic acid levels during pregnancy, in the context of preeclampsia risk.
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Correia-Branco A, Keating E, Martel F. Arachidonic Acid Reverses Xanthohumol-Induced Insufficiency in a Human First-Trimester Extravillous Trophoblast Cell Line (HTR-8/SVneo Cells). Reprod Sci 2017; 25:1394-1405. [DOI: 10.1177/1933719117746762] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Ana Correia-Branco
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
- I3S, Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
| | - Elisa Keating
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
- CINTESIS, Center for Research in Health Technologies and Information Systems, University of Porto, Porto, Portugal
| | - Fátima Martel
- Unit of Biochemistry, Department of Biomedicine, Faculty of Medicine, University of Porto, Porto, Portugal
- I3S, Instituto de Investigação e Inovação em Saúde, University of Porto, Porto, Portugal
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Aljunaidy MM, Morton JS, Cooke CLM, Davidge ST. Prenatal hypoxia and placental oxidative stress: linkages to developmental origins of cardiovascular disease. Am J Physiol Regul Integr Comp Physiol 2017; 313:R395-R399. [PMID: 28794104 DOI: 10.1152/ajpregu.00245.2017] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 07/31/2017] [Accepted: 07/31/2017] [Indexed: 11/22/2022]
Abstract
Intrauterine growth restriction (IUGR, a pregnancy complication where the fetus does not reach its genetic growth potential) is a leading cause of fetal morbidity and mortality with a significant impact on population health. IUGR is associated with gestational hypoxia; which can lead to placental oxidative stress and fetal programming of cardiovascular disease. Mitochondria are a major source of placental oxidative stress and may provide a therapeutic target to mitigate the detrimental effects of placental oxidative stress on pregnancy outcomes. A nanoparticle-mediated delivery of a mitochondrial antioxidant to the placenta is a potential novel approach that may avoid unwanted off-target effects on the developing offspring.
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Affiliation(s)
- Mais M Aljunaidy
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada.,Department of Physiology, University of Alberta, Edmonton, Canada; and.,Women and Children's Health Research Institute and the Cardiovascular Research Centre, Edmonton, Canada
| | - Jude S Morton
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada.,Women and Children's Health Research Institute and the Cardiovascular Research Centre, Edmonton, Canada
| | - Christy-Lynn M Cooke
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada.,Women and Children's Health Research Institute and the Cardiovascular Research Centre, Edmonton, Canada
| | - Sandra T Davidge
- Department of Obstetrics and Gynecology, University of Alberta, Edmonton, Canada; .,Department of Physiology, University of Alberta, Edmonton, Canada; and.,Women and Children's Health Research Institute and the Cardiovascular Research Centre, Edmonton, Canada
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9
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Maternal Type 1 diabetes activates stress response in early placenta. Placenta 2017; 50:110-116. [DOI: 10.1016/j.placenta.2017.01.118] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 01/09/2017] [Accepted: 01/12/2017] [Indexed: 01/22/2023]
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10
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Yung HW, Alnæs-Katjavivi P, Jones CJP, El-Bacha T, Golic M, Staff AC, Burton GJ. Placental endoplasmic reticulum stress in gestational diabetes: the potential for therapeutic intervention with chemical chaperones and antioxidants. Diabetologia 2016; 59:2240-50. [PMID: 27406815 PMCID: PMC5016560 DOI: 10.1007/s00125-016-4040-2] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/05/2016] [Accepted: 06/10/2016] [Indexed: 02/07/2023]
Abstract
AIMS/HYPOTHESIS The aim of this work was to determine whether placental endoplasmic reticulum (ER) stress may contribute to the pathophysiology of gestational diabetes mellitus (GDM) and to test the efficacy of chemical chaperones and antioxidant vitamins in ameliorating that stress in a trophoblast-like cell line in vitro. METHODS Placental samples were obtained from women suffering from GDM and from normoglycaemic controls and were frozen immediately. Women with GDM had 2 h serum glucose levels > 9.0 mmol/l following a 75 g oral glucose tolerance test and were treated with diet and insulin when necessary. Western blotting was used to assess markers of ER stress. To test the effects of hyperglycaemia on the generation of ER stress, a new trophoblast-like cell line, BeWo-NG, was generated by culturing in a physiological glucose concentration of 5.5 mmol/l (over 20 passages) before challenging with 10 or 20 mmol/l glucose. RESULTS All GDM patients were well-controlled (HbA1c 5.86 ± 0.55% or 40.64 ± 5.85 mmol/mol, n = 11). Low-grade ER stress was observed in the placental samples, with dilation of ER cisternae and increased phosphorylation of eukaryotic initiation factor 2 subunit α. Challenge of BeWo-NG with high glucose activated the same pathways, but this was as a result of acidosis of the culture medium rather than the glucose concentration per se. Addition of chemical chaperones 4-phenylbutyrate and tauroursodeoxycholic acid and vitamins C and E ameliorated the ER stress. CONCLUSIONS/INTERPRETATION This is the first report of placental ER stress in GDM patients. Chemical chaperones and antioxidant vitamins represent potential therapeutic interventions for GDM.
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Affiliation(s)
- Hong-Wa Yung
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, Physiological Laboratory, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK
| | - Patji Alnæs-Katjavivi
- Department of Obstetrics and Gynecology, Oslo University Hospital, Ullevål and Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Carolyn J P Jones
- Centre for Maternal and Fetal Health, Institute of Human Development, University of Manchester, Manchester, UK
| | - Tatiana El-Bacha
- Institute of Nutrition, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Michaela Golic
- Experimental and Clinical Research Center, a cooperation between the Max Delbrück Center for Molecular Medicine in the Helmholtz Association and the Charité-Universitätsmedizin Berlin, Berlin, Germany
- Department of Obstetrics and Gynecology, Charité-Universitätsmedizin Berlin, Berlin, Germany
- Berlin Institute of Health (BIH), Berlin, Germany
| | - Anne-Cathrine Staff
- Department of Obstetrics and Gynecology, Oslo University Hospital, Ullevål and Faculty of Medicine, University of Oslo, Oslo, Norway
| | - Graham J Burton
- Centre for Trophoblast Research, Department of Physiology, Development and Neuroscience, Physiological Laboratory, University of Cambridge, Downing Street, Cambridge, CB2 3EG, UK.
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Mezouar D, Merzouk H, Merzouk AS, Merzouk SA, Belarbi B, Narce M. In vitro effects of vitamins C and E, n-3 and n-6 PUFA and n-9 MUFA on placental cell function and redox status in type 1 diabetic pregnant women. Placenta 2016; 42:114-21. [PMID: 27238721 DOI: 10.1016/j.placenta.2016.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2016] [Revised: 03/22/2016] [Accepted: 04/14/2016] [Indexed: 10/21/2022]
Abstract
The aim of this investigation was to determine the in vitro effects of vitamin C and E, n-3 and n-6 PUFA and n-9 MUFA on placental cell proliferation and function in type 1 diabetes. Placenta tissues were collected from 30 control healthy and 30 type 1 diabetic women at delivery. Placental cells were isolated and were cultured in RPMI medium supplemented with vitamin C (50 μM), vitamin E (50 μM), n-3 PUFA (100 μM), n-6 PUFA (100 μM) or n-9 MUFA (100 μM). Cell proliferation, cell glucose uptake and intracellular oxidative status were investigated. Our results showed that basal placental cell proliferation, glucose uptake, malondialdehyde (MDA) and carbonyl proteins were higher while intracellular reduced glutathione (GSH) levels and catalase activities were lower in placentas from diabetic women as compared to controls. Vitamins C and E induced a modulation of placental cell proliferation and glucose consumption without affecting intracellular redox status in both diabetic and control groups. N-3 and n-6 PUFA diminished placental cell proliferation and enhanced intracellular oxidative stress while n-9 MUFA had no effects in the two groups. Co-administration of n-3 or n-6 PUFA and vitamin C or E were capable of reversing back the PUFA-decreased cell proliferation and normalizing placental cell function and redox status especially in diabetes. In conclusion, PUFA and antioxidant vitamin combinations may be beneficial in improving placenta function and in reducing placental oxidative stress in type 1 diabetic pregnancy.
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Affiliation(s)
- Djamila Mezouar
- Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Hafida Merzouk
- Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria.
| | - Amel Saidi Merzouk
- Laboratory of Physiology, Physiopathology and Biochemistry of Nutrition, Department of Biology, Faculty of Natural and Life Sciences, Earth and Universe, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Sid Ahmed Merzouk
- Department of Technical Sciences, Faculty of Engineering, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Boumediene Belarbi
- Gynecology and Obstetrics Department, Mother and Infant Hospital Center, University Abou-Bekr Belkaïd, Tlemcen 13000, Algeria
| | - Michel Narce
- INSERM UMR866, "Lipids Nutrition Cancer," Faculty of Life, Earth and Environment Sciences, University of Burgundy, Dijon 21000, France
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Robajac D, Masnikosa R, Miković Ž, Mandić V, Nedić O. Oxidation of placental insulin and insulin-like growth factor receptors in mothers with diabetes mellitus or preeclampsia complicated with intrauterine growth restriction. Free Radic Res 2015; 49:984-9. [PMID: 25812587 DOI: 10.3109/10715762.2015.1020798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Placental insulin receptor (IR) and insulin-like growth factor receptors (IGFRs) are essential for fetal growth. We investigated structural changes of these receptors exposed to increased oxidative stress in mothers diagnosed with diabetes mellitus (DM) or preeclampsia (PE) complicated with intrauterine growth restriction. Increased amount of IR and decreased amounts of IGF1R and IGF2R were found in both pathologies, accompanied by significant elevation in protein carbonyls. When isolated receptors were examined, increased carbonylation of IR and IGF1R in PE placentas was detected, whereas the amounts of carbonylated IR and IGF1R were similar in DM and healthy placentas. Carbonylation status of IGF2R did not change due to pathology, confirming the detrimental role of primary structure and conformation in oxidative susceptibility. Ligand binding was similar in all three groups of samples and did not seem to be affected by receptor oxidation. Since babies delivered by mothers with PE were smaller than the referent population, increased carbonylation of receptors might have affected downstream receptor signaling post-ligand binding.
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Affiliation(s)
- D Robajac
- Department for Metabolism, INEP - Institute for the Application of Nuclear Energy, University of Belgrade , Belgrade , Republic of Serbia
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Pereira AC, Martel F. Oxidative stress in pregnancy and fertility pathologies. Cell Biol Toxicol 2014; 30:301-12. [PMID: 25030657 DOI: 10.1007/s10565-014-9285-2] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2014] [Accepted: 07/07/2014] [Indexed: 01/19/2023]
Abstract
Oxidative stress designates the state of imbalance between reactive oxygen species (ROS) production and antioxidant levels. In a healthy placenta, there is an increase in ROS production, due to formation of new tissues and inherent metabolism, but this is balanced by higher levels of antioxidants. However, this balance is lost in some situations, with a consequent increase in oxidative stress levels. Oxidative stress has been implicated in several placental disorders and pregnancy pathologies. The present review intends to summarize what is known about the relationship between oxidative stress and well-known pregnancy disorders.
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Affiliation(s)
- Ana C Pereira
- Unit of Molecular Mechanisms of Disease (CISA) and Chemical and Biomolecular Sciences, School of Allied Health Sciences, Polytechnic Institute of Porto (ESTSP-IPP), Porto, Portugal
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Saben J, Lindsey F, Zhong Y, Thakali K, Badger TM, Andres A, Gomez-Acevedo H, Shankar K. Maternal obesity is associated with a lipotoxic placental environment. Placenta 2014; 35:171-7. [PMID: 24484739 DOI: 10.1016/j.placenta.2014.01.003] [Citation(s) in RCA: 212] [Impact Index Per Article: 21.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2013] [Revised: 12/03/2013] [Accepted: 01/05/2014] [Indexed: 12/21/2022]
Abstract
Maternal obesity is associated with placental lipotoxicity, oxidative stress, and inflammation, where MAPK activity may play a central role. Accordingly, we have previously shown that placenta from obese women have increased activation of MAPK-JNK. Here, we performed RNA-sequencing on term placenta from twenty-two subjects who were dichotomized based on pre-pregnancy BMI into lean (BMI 19-24 kg/m(2); n = 12) and obese groups (BMI, 32-43 kg/m(2); n = 12). RNA-seq revealed 288 genes to be significantly different in placenta from obese women by ≥ 1.4-fold. GO analysis identified genes related to lipid metabolism, angiogenesis, hormone activity, and cytokine activity to be altered in placenta from obese women. Indicative of a lipotoxic environment, increased placental lipid and CIDEA protein were associated with decreased AMPK and increased activation of NF-κB (p65) in placenta from obese women. Furthermore, we observed a 25% decrease in total antioxidant capacity and increased nuclear FOXO4 localization in placenta from obese women that was significantly associated with JNK activation, suggesting that maternal obesity may also be associated with increased oxidative stress in placenta. Maternal obesity was also associated with decreased HIF-1α protein expression, suggesting a potential link between increased inflammation/oxidative stress and decreased angiogenic factors. Together, these findings indicate that maternal obesity leads to a lipotoxic placental environment that is associated with decreased regulators of angiogenesis and increased markers of inflammation and oxidative stress.
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Affiliation(s)
- J Saben
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA; The Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - F Lindsey
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Y Zhong
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - K Thakali
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA; The Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - T M Badger
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA; The Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - A Andres
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA; The Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - H Gomez-Acevedo
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA; The Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - K Shankar
- Arkansas Children's Nutrition Center, University of Arkansas for Medical Sciences, Little Rock, AR, USA; The Department of Pediatrics, University of Arkansas for Medical Sciences, Little Rock, AR, USA.
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