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Nunes PR, Oliveira PF, Rebelo I, Sandrim VC, Alves MG. Relevance of real-time analyzers to determine mitochondrial quality in endothelial cells and oxidative stress in preeclampsia. Vascul Pharmacol 2024; 155:107372. [PMID: 38583694 DOI: 10.1016/j.vph.2024.107372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 04/04/2024] [Accepted: 04/04/2024] [Indexed: 04/09/2024]
Abstract
Oxidative stress and mitochondrial dysfunction are important elements for the pathophysiology of preeclampsia (PE), a multisystemic hypertensive syndrome of pregnancy, characterized by endothelial dysfunction and responsible for a large part of maternal and fetal morbidity and mortality worldwide. Researchers have dedicated their efforts to unraveling the intricate ways in which certain molecules influence both energy metabolism and oxidative stress. Exploring established methodologies from existing literature, shows that these investigations predominantly focus on the placenta, identified as a pivotal source that drives the changes observed in the disease. In this review, we discuss the role of oxidative stress in pathophysiology of PE, as well as metabolic/endothelial dysfunction. We further discuss the use of seahorse analyzers to study real-time bioenergetics of endothelial cells. Although the benefits are clear, few studies have presented results using this method to assess mitochondrial metabolism in these cells. We performed a search on MEDLINE/PubMed using the terms "Seahorse assay and endothelial dysfunction in HUVEC" as well as "Seahorse assay and preeclampsia". From our research, we selected 16 original peer-review papers for discussion. Notably, the first search retrieved studies involving Human Umbilical Vein Endothelial Cells (HUVECs) but none investigating bioenergetics in PE while the second search retrieved studies exploring the technique in PE but none of the studies used HUVECs. Additional studies are required to investigate real-time mitochondrial bioenergetics in PE. Clearly, there is a need for more complete studies to examine the nuances of mitochondrial bioenergetics, focusing on the contributions of HUVECs in the context of PE.
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Affiliation(s)
- Priscila R Nunes
- Department of Pharmacology and Biophysics, Institute of Biosciences, Sao Paulo State University (Unesp), 18618-689 Sao Paulo, Brazil
| | - Pedro F Oliveira
- LAQV-REQUIMTE and Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Irene Rebelo
- UCIBIO-REQUIMTE, Laboratory of Biochemistry, Department of Biologic Sciences, Pharmaceutical Faculty, University of Porto, 4050-313 Porto, Portugal; Associate Laboratory i4HB- Institute for Health and Bioeconomy, Laboratory of Biochemistry, Department of Biologic Sciences, Pharmaceutical Faculty, University of Porto, 4050-313 Porto, Portugal
| | - Valeria C Sandrim
- Department of Pharmacology and Biophysics, Institute of Biosciences, Sao Paulo State University (Unesp), 18618-689 Sao Paulo, Brazil
| | - Marco G Alves
- iBiMED - Institute of Biomedicine and Department of Medical Sciences University of Aveiro, 3810-193 Aveiro, Portugal.
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Kotepui KU, Mueangson O, Mala W, Mahittikorn A, Wangdi K, Kotepui M. Status of Blood Levels of Superoxide Dismutase in Patients with Malaria: A Systematic Review and Meta-Analysis. Antioxid Redox Signal 2024; 40:222-235. [PMID: 37125449 DOI: 10.1089/ars.2023.0273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Aims: The evidence of superoxide dismutase (SOD) in the pathogenesis of malaria is inconsistent. This study aimed to synthesize the evidence of blood levels of SOD in patients with malaria and determine the association of blood levels of SOD with the severity of malaria. Results: A total of 1874 articles were retrieved from database searches and 28 studies were included in the review. The blood levels of SOD were lower in individuals with malaria compared with those without malaria infection (p < 0.01, Cohen's d: -2.06, 95% CI: -2.99 to -1.14), I2: 98.96%, 2181 malaria cases/1186 uninfected cases). There were no differences in blood levels of SOD between severe and nonsevere malaria patients (p = 0.09, Cohen's d: -1.57, 95% CI: -3.39 to 0.26), I2: 96.02%, 69 severe malaria cases/256 nonsevere malaria cases). Innovation and Conclusion: The blood levels of SOD were lower in malaria patients compared with those without malaria infection. Further studies will be required to determine the extent to which SOD might prevent Plasmodium infections during pregnancy. Antioxid. Redox Signal. 40, 222-235.
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Affiliation(s)
| | - Onchuma Mueangson
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Wanida Mala
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
| | - Aongart Mahittikorn
- Department of Protozoology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kinley Wangdi
- Department of Global Health, National Centre for Epidemiology and Population Health, College of Health and Medicine, Australian National University, Canberra, Australia
| | - Manas Kotepui
- School of Allied Health Sciences, Walailak University, Nakhon Si Thammarat, Thailand
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Grzeszczak K, Łanocha-Arendarczyk N, Malinowski W, Ziętek P, Kosik-Bogacka D. Oxidative Stress in Pregnancy. Biomolecules 2023; 13:1768. [PMID: 38136639 PMCID: PMC10741771 DOI: 10.3390/biom13121768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 12/05/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Recent years have seen an increased interest in the role of oxidative stress (OS) in pregnancy. Pregnancy inherently heightens susceptibility to OS, a condition fueled by a systemic inflammatory response that culminates in an elevated presence of reactive oxygen species (ROS) and reactive nitrogen species (RNS) in the circulatory system. The amplified OS in pregnancy can trigger a series of detrimental outcomes such as underdevelopment, abnormal placental function, and a host of pregnancy complications, including pre-eclampsia, embryonic resorption, recurrent pregnancy loss, fetal developmental anomalies, intrauterine growth restriction, and, in extreme instances, fetal death. The body's response to mitigate the uncontrolled increase in RNS/ROS levels requires trace elements that take part in non-enzymatic and enzymatic defense processes, namely, copper (Cu), zinc (Zn), manganese (Mn), and selenium (Se). Determination of ROS concentrations poses a challenge due to their short half-lives, prompting the use of marker proteins, including malondialdehyde (MDA), superoxide dismutase (SOD), glutathione peroxidase (GPx), glutathione reductase (GR), catalase (CAT), and glutathione (GSH). These markers, indicative of oxidative stress intensity, can offer indirect assessments of pregnancy complications. Given the limitations of conducting experimental studies on pregnant women, animal models serve as valuable substitutes for in-depth research. This review of such models delves into the mechanism of OS in pregnancy and underscores the pivotal role of OS markers in their evaluation.
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Affiliation(s)
- Konrad Grzeszczak
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstanców Wielkopolskich 72, 70-111 Szczecin, Poland; (K.G.); (N.Ł.-A.)
- Department of Laboratory Diagnostics, Pomeranian Medical University, 70-111 Szczecin, Poland
| | - Natalia Łanocha-Arendarczyk
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstanców Wielkopolskich 72, 70-111 Szczecin, Poland; (K.G.); (N.Ł.-A.)
| | - Witold Malinowski
- Faculty of Health Sciences, The Masovian. Public University in Płock, Plac Dąbrowskiego 2, 09-402 Płock, Poland;
| | - Paweł Ziętek
- Department of Orthopaedics, Traumatology and Orthopaedic Oncology, Pomeranian Medical University, Unii Lubelskiej 1, 71-252 Szczecin, Poland;
| | - Danuta Kosik-Bogacka
- Independent Laboratory of Pharmaceutical Botany, Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstanców Wielkopolskich 72, 70-111 Szczecin, Poland
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Grzeszczak K, Kapczuk P, Kupnicka P, Simińska DK, Lebdowicz-Knul J, Kwiatkowski SK, Łanocha-Arendarczyk N, Chlubek D, Kosik-Bogacka DI. The Trace Element Concentrations and Oxidative Stress Parameters in Afterbirths from Women with Multiple Pregnancies. Biomolecules 2023; 13:biom13050797. [PMID: 37238667 DOI: 10.3390/biom13050797] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/13/2023] [Accepted: 05/04/2023] [Indexed: 05/28/2023] Open
Abstract
The aim of this study was to evaluate the intensity of oxidative stress by measuring the concentrations of lipid peroxidation products (LPO) in fetal membrane, umbilical cord, and placenta samples obtained from women with multiple pregnancies. Additionally, the effectiveness of protection against oxidative stress was assessed by measuring the activity of antioxidant enzymes, including superoxide dismutase (SOD), catalase (CAT), glutathione peroxidase (GPX), and glutathione reductase (GR). Due to the role of iron (Fe), copper (Cu), and zinc (Zn) as cofactors for antioxidant enzymes, the concentrations of these elements were also analyzed in the studied afterbirths. The obtained data were compared with newborn parameters, selected environmental factors, and the health status of women during pregnancy to determine the relationship between oxidative stress and the health of women and their offspring during pregnancy. The study involved women (n = 22) with multiple pregnancies and their newborns (n = 45). The Fe, Zn, and Cu levels in the placenta, umbilical cord, and fetal membrane were determined using inductively coupled plasma atomic emission spectroscopy (ICP-OES) using an ICAP 7400 Duo system. Commercial assays were used to determine SOD, GPx, GR, CAT, and LPO activity levels. The determinations were made spectrophotometrically. The present study also investigated the relationships between trace element concentrations in fetal membrane, placenta, and umbilical cord samples and various maternal and infant parameters in women. Notably, a strong positive correlation was observed between Cu and Zn concentrations in the fetal membrane (p = 0.66) and between Zn and Fe concentrations in the placenta (p = 0.61). The fetal membrane Zn concentration exhibited a negative correlation with shoulder width (p = -0.35), while the placenta Cu concentration was positively correlated with placenta weight (p = 0.46) and shoulder width (p = 0.36). The umbilical cord Cu level was positively correlated with head circumference (p = 0.36) and birth weight (p = 0.35), while the placenta Fe concentration was positively correlated with placenta weight (p = 0.33). Furthermore, correlations were determined between the parameters of antioxidative stress (GPx, GR, CAT, SOD) and oxidative stress (LPO) and the parameters of infants and maternal characteristics. A negative correlation was observed between Fe and LPO product concentrations in the fetal membrane (p = -0.50) and placenta (p = -0.58), while the Cu concentration positively correlated with SOD activity in the umbilical cord (p = 0.55). Given that multiple pregnancies are associated with various complications, such as preterm birth, gestational hypertension, gestational diabetes, and placental and umbilical cord abnormalities, research in this area is crucial for preventing obstetric failures. Our results could serve as comparative data for future studies. However, we advise caution when interpreting our results, despite achieving statistical significance.
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Affiliation(s)
- Konrad Grzeszczak
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Patrycja Kapczuk
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Patrycja Kupnicka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Donata Kinga Simińska
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Joanna Lebdowicz-Knul
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Sebastian Karol Kwiatkowski
- Department of Obstetrics and Gynecology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Natalia Łanocha-Arendarczyk
- Department of Biology and Medical Parasitology, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
| | - Danuta Izabela Kosik-Bogacka
- Independent Laboratory of Pharmaceutical Botany, Pomeranian Medical University in Szczecin, Powstańców Wielkopolskich 72, 70-111 Szczecin, Poland
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Baser E, Inandiklioglu N, Aydogan Kırmızı D, Ercan F, Caniklioğlu A, Kara M, Onat T, Yalvac ES. Placental and Umbilical Cord Blood Oxidative Stress Level and Telomere Homeostasis in Early Onset Severe Preeclampsia. Z Geburtshilfe Neonatol 2023; 227:112-119. [PMID: 36216345 DOI: 10.1055/a-1938-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/15/2023]
Abstract
OBJECTIVE Although the etiopathogenesis of preeclampsia (PE) is unknown, evidence suggests that it may be associated with increased oxidative stress. Studies have shown that oxidative stress can affect DNA fragments called telomeres. However, the interactions of PE, oxidative stress, and telomere length are not clearly known. This study aims to evaluate the oxidative/anti-oxidative stress balance in the placenta and umbilical cord and examine the effect of oxidative stress on telomeres. MATERIALS-METHOD Cord blood and placental samples were collected from 27 pregnant women with severe PE (280/7-336/7 gestational weeks) and 53 healthy pregnant women. Telomere length (TL) was measured by real-time PCR in the cord blood and placenta tissue. Total antioxidant status (TAS) and total oxidant status (TOS) levels were measured in the cord blood and placenta tissue using a colorimetric method. RESULTS No significant differences were found between groups regarding age, BMI, gravida, parity, and newborn gender (p>0.05). Cord blood and placental TL of PE patients were significantly shorter than the control group, while cord blood and placental TAS and TOS levels were higher (p<0.05). The results of a multivariate logistic regression analysis showed that the level of placental TOS in PE patients (OR=1.212, 95% CI=1.068-1.375) was an independent risk factor affecting PE. CONCLUSION This study found that oxidative stress is an independent risk factor in the development of PE and shortens TL in both placental and umbilical cord blood. Future research on telomere homeostasis may offer a new perspective for the treatment of PE.
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Affiliation(s)
- Emre Baser
- Department of Obstetrics and Gynecology, Yozgat Bozok University, Yozgat, Turkey
| | | | - Demet Aydogan Kırmızı
- Department of Obstetrics and Gynecology, Yozgat Bozok Universty, Medicine of Faculty, Yozgat, Turkey
| | - Fedi Ercan
- Obstetrics and Gynecology, Necmettin Erbakan Universitesi Meram Tip Fakultesi, Konya, Turkey
| | - Ayşen Caniklioğlu
- Department of Biochemistry, Yozgat Bozok University, Faculty of Medicine, Yozgat, Turkey
| | - Mustafa Kara
- Obstetrics and Gynecology, Ahi Evran University Faculty of Medicine, Kirsehir, Turkey
| | - Taylan Onat
- Department of Obstetrics and Gynecology, Yozgat Bozok University, Faculty of Medicine, Yozgat, Turkey
| | - Ethem Serdar Yalvac
- Department of Obstetrics and Gynecology, Yozgat Bozok University, Faculty of Medicine, Yozgat, Turkey
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Khavinson V, Linkova N, Kozhevnikova E, Dyatlova A, Petukhov M. Transport of Biologically Active Ultrashort Peptides Using POT and LAT Carriers. Int J Mol Sci 2022; 23:ijms23147733. [PMID: 35887081 PMCID: PMC9323678 DOI: 10.3390/ijms23147733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2022] [Revised: 07/11/2022] [Accepted: 07/12/2022] [Indexed: 01/27/2023] Open
Abstract
Ultrashort peptides (USPs), consisting of 2–7 amino-acid residues, are a group of signaling molecules that regulate gene expression and protein synthesis under normal conditions in various diseases and ageing. USPs serve as a basis for the development of drugs with a targeted mechanism of action. The purpose of this review is to systematize the available data on USP transport involving POT and LAT transporters in various organs and tissues under normal, pathological and ageing conditions. The carriers of the POT family (PEPT1, PEPT2, PHT1, PHT2) transport predominantly di- and tripeptides into the cell. Methods of molecular modeling and physicochemistry have demonstrated the ability of LAT1 to transfer not only amino acids but also some di- and tripeptides into the cell and out of it. LAT1 and 2 are involved in the regulation of the antioxidant, endocrine, immune and nervous systems’ functions. Analysis of the above data allows us to conclude that, depending on their structure, di- and tripeptides can be transported into the cells of various tissues by POT and LAT transporters. This mechanism is likely to underlie the tissue specificity of peptides, their geroprotective action and effectiveness in the case of neuroimmunoendocrine system disorders.
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Affiliation(s)
- Vladimir Khavinson
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 Saint Petersburg, Russia; (N.L.); (E.K.); (A.D.)
- Group of Peptide Regulation of Aging, Pavlov Institute of Physiology of Russian Academy of Sciences, 199034 Saint Petersburg, Russia
- Correspondence: or ; Tel.: +7-(921)-9110800
| | - Natalia Linkova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 Saint Petersburg, Russia; (N.L.); (E.K.); (A.D.)
- The Laboratory “Problems of Aging”, Belgorod National Research University, 308015 Belgorod, Russia
| | - Ekaterina Kozhevnikova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 Saint Petersburg, Russia; (N.L.); (E.K.); (A.D.)
| | - Anastasiia Dyatlova
- Department of Biogerontology, Saint Petersburg Institute of Bioregulation and Gerontology, 197110 Saint Petersburg, Russia; (N.L.); (E.K.); (A.D.)
| | - Mikhael Petukhov
- Petersburg Nuclear Physics Institute Named after B.P. Konstantinov, NRC “Kurchatov Institute”, 188300 Gatchina, Russia;
- Peter the Great St. Petersburg Group of Biophysics, Higher Engineering and Technical School, Peter the Great St. Petersburg Polytechnic University, 195251 Saint Petersburg, Russia
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Placental oxidative stress and monoamine oxidase expression are increased in severe preeclampsia: a pilot study. Mol Cell Biochem 2022; 477:2851-2861. [PMID: 35695948 PMCID: PMC9189275 DOI: 10.1007/s11010-022-04499-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 06/01/2022] [Indexed: 11/04/2022]
Abstract
Preeclampsia (PE) is the most severe complication of pregnancy with substantial burden of morbidity and mortality for mother and neonate. The increased placental oxidative stress (OS) has been involved as central pathomechanism, yet the sources of reactive oxygen species (ROS) are partially elucidated. Monoamine oxidase (MAO) with 2 isoforms, A and B, at the outer mitochondrial membrane has emerged as a constant source of ROS in cardiometabolic pathologies. The present pilot study was purported to assess as follows: (i) the magnitude of placental OS in relation to the site of sampling and (ii) the expression of placental MAO in the setting of PE. To this aim, central and placental samples were harvested during cesarean section from mild and severe PE versus healthy pregnancies. ROS generation (dihydroethidium staining) and MAO expression were assessed (confocal microscopy). MAO gene transcript was evaluated by RT-PCR. The main findings are as follows: (i) a significant increase in placental OS was found in severe (but not in mild) PE with no regional differences between central and peripheral areas and (ii) placental MAO-A and B (gene and protein) were significantly increased in severe preeclampsia. The signal transduction of the latter finding, particularly in relation with mitochondrial dysfunction, is worth further studying.
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Afrose D, Chen H, Ranashinghe A, Liu CC, Henessy A, Hansbro PM, McClements L. The diagnostic potential of oxidative stress biomarkers for preeclampsia: systematic review and meta-analysis. Biol Sex Differ 2022; 13:26. [PMID: 35658944 PMCID: PMC9167545 DOI: 10.1186/s13293-022-00436-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2022] [Accepted: 05/20/2022] [Indexed: 12/23/2022] Open
Abstract
Background Preeclampsia is a multifactorial cardiovascular disorder of pregnancy. If left untreated, it can lead to severe maternal and fetal outcomes. Hence, timely diagnosis and management of preeclampsia are extremely important. Biomarkers of oxidative stress are associated with the pathogenesis of preeclampsia and therefore could be indicative of evolving preeclampsia and utilized for timely diagnosis. In this study, we conducted a systematic review and meta-analysis to determine the most reliable oxidative stress biomarkers in preeclampsia, based on their diagnostic sensitivities and specificities as well as their positive and negative predictive values. Methods A systematic search using PubMed, ScienceDirect, ResearchGate, and PLOS databases (1900 to March 2021) identified nine relevant studies including a total of 343 women with preeclampsia and 354 normotensive controls. Results Ischemia-modified albumin (IMA), uric acid (UA), and malondialdehyde (MDA) were associated with 3.38 (95% CI 2.23, 4.53), 3.05 (95% CI 2.39, 3.71), and 2.37 (95% CI 1.03, 3.70) odds ratios for preeclampsia diagnosis, respectively. The IMA showed the most promising diagnostic potential with the positive predictive ratio (PPV) of 0.852 (95% CI 0.728, 0.929) and negative predictive ratio (NPV) of 0.811 (95% CI 0.683, 0.890) for preeclampsia. Minor between-study heterogeneity was reported for these biomarkers (Higgins’ I2 = 0–15.879%). Conclusions This systematic review and meta-analysis identified IMA, UA, and MDA as the most promising oxidative stress biomarkers associated with established preeclampsia. IMA as a biomarker of tissue damage exhibited the best diagnostic test accuracy. Thus, these oxidative stress biomarkers should be further explored in larger cohorts for preeclampsia diagnosis. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s13293-022-00436-0. Biomarkers of oxidative stress are related to the pathogenesis of preeclampsia and might be indicative of evolving preeclampsia and utilized for timely diagnosis and management of preeclampsia. Systematic review and meta-analysis were conducted to evaluate the diagnostic accuracy of oxidative stress markers based on their diagnostic sensitivities and specificities. Clinically relevant positive predictive values (PPVs) and negative predictive values (NPVs) were determined for each biomarker. IMA, UA, and MDA were associated with 3.38, 3.05, and 2.37 odds ratios for preeclampsia onset. IMA exhibited the most promising diagnostic potential with an average PPV of 0.852 and NPV of 0.811, respectively. Minor heterogeneity was reported for these biomarkers (Higgins’ I2 = 0–15.879%). These oxidative stress markers should be further explored in larger cohorts for preeclampsia diagnosis.
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Assessment of the Systemic Oxidative Stress in Preeclampsia. SERBIAN JOURNAL OF EXPERIMENTAL AND CLINICAL RESEARCH 2022. [DOI: 10.2478/sjecr-2022-0010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Preeclampsia (PE) is a major complication of pregnancy with both mother and fetal adverse outcomes. Pregnancy is a state of increased oxidative stress that has been reported to be exacerbated when complicated with preeclampsia. However, conflicting data are available in literature regarding the systemic oxidative stress in PE pregnancies. The present pilot study was purported to assess systemic oxidative stress in preeclamptic vs healthy pregnancies. To this aim plasma derived compounds of reactive oxygen metabolites (d-ROMs) and the biological antioxidant potential (BAP) were determined in mild and severe preeclamptic pregnancies using the Diacron equipment. Both healthy and preeclamptic pregnancies showed high levels of systemic oxidative stress. Paradoxically, significantly higher values of d-ROMs were found in healthy pregnancies as compared to the PE ones. At variance, in preeclamptic pregnancies, a major increase in the plasma antioxidant capacity occurred. In this pilot study, we report an increase in the systemic antioxidant capacity in preeclamptic pregnancies.
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Kusuma GD, Georgiou HM, Perkins AV, Abumaree MH, Brennecke SP, Kalionis B. Mesenchymal Stem/Stromal Cells and Their Role in Oxidative Stress Associated with Preeclampsia. THE YALE JOURNAL OF BIOLOGY AND MEDICINE 2022; 95:115-127. [PMID: 35370491 PMCID: PMC8961706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Preeclampsia (PE) is a serious medically important disorder of human pregnancy, which features de novo pregnancy-induced hypertension and proteinuria. The severe form of PE can progress to eclampsia, a convulsive, life-threatening condition. When placental growth and perfusion are abnormal, the placenta experiences oxidative stress and subsequently secretes abnormal amounts of certain pro-angiogenic factors (eg, PlGF) as well as anti-angiogenic factors (eg, sFlt-1) that enter the maternal circulation. The net effect is damage to the maternal vascular endothelium, which subsequently manifests as the clinical features of PE. Other than delivery of the fetus and placenta, curative treatments for PE have not yet been forthcoming, which reflects the complexity of the clinical syndrome. A major source of reactive oxygen species that contributes to the widespread maternal vascular endothelium damage is the PE-affected decidua. The role of decidua-derived mesenchymal stem/stromal cells (MSC) in normotensive and pathological placenta development is poorly understood. The ability to respond to an environment of oxidative damage is a "universal property" of MSC but the biological mechanisms that MSC employ in response to oxidative stress are compromised in PE. In this review, we discuss how MSC respond to oxidative stress in normotensive and pathological conditions. We also consider the possibility of manipulating the oxidative stress response of abnormal MSC as a therapeutic strategy to treat preeclampsia.
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Affiliation(s)
- Gina D. Kusuma
- The University of Melbourne, Department of Obstetrics
and Gynaecology, Royal Women’s Hospital, Parkville, Victoria, Australia,Pregnancy Research Centre, Department of Maternal-Fetal
Medicine, Royal Women’s Hospital, Parkville, Victoria, Australia
| | - Harry M. Georgiou
- The University of Melbourne, Department of Obstetrics
and Gynaecology, Royal Women’s Hospital, Parkville, Victoria, Australia,Pregnancy Research Centre, Department of Maternal-Fetal
Medicine, Royal Women’s Hospital, Parkville, Victoria, Australia
| | - Anthony V. Perkins
- School of Medical Science, Menzies Health Institute
Queensland, Griffith University, Southport, Queensland, Australia
| | - Mohamed H. Abumaree
- Stem Cells and Regenerative Medicine Department, King
Abdullah International Medical Research Center, King Abdulaziz Medical City,
Ministry of National Guard Health Affairs, Riyadh, Saudi Arabia,King Saud Bin Abdulaziz University for Health Sciences,
College of Science and Health Professions, King Abdulaziz Medical City, Ministry
of National Guard Health Affairs, Riyadh, Saudi Arabia
| | - Shaun P. Brennecke
- The University of Melbourne, Department of Obstetrics
and Gynaecology, Royal Women’s Hospital, Parkville, Victoria, Australia,Pregnancy Research Centre, Department of Maternal-Fetal
Medicine, Royal Women’s Hospital, Parkville, Victoria, Australia
| | - Bill Kalionis
- The University of Melbourne, Department of Obstetrics
and Gynaecology, Royal Women’s Hospital, Parkville, Victoria, Australia,Pregnancy Research Centre, Department of Maternal-Fetal
Medicine, Royal Women’s Hospital, Parkville, Victoria, Australia,To whom all correspondence should be addressed:
Dr. Bill Kalionis, Department of Maternal-Fetal Medicine Pregnancy Research
Centre Royal Women’s Hospital, Parkville, Victoria, Australia;
; ORCID iD:
https://orcid.org/0000-0002-0132-9858
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SARS- CoV-2 infection and oxidative stress in early-onset preeclampsia. Biochim Biophys Acta Mol Basis Dis 2022; 1868:166321. [PMID: 34920081 PMCID: PMC8668602 DOI: 10.1016/j.bbadis.2021.166321] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Revised: 11/23/2021] [Accepted: 12/07/2021] [Indexed: 02/06/2023]
Abstract
SARS-CoV-2 causes coronavirus disease 2019 (COVID-19) also in pregnant women. Infection in pregnancy leads to maternal and placental functional alterations. Pregnant women with vascular defects such as preeclampsia show high susceptibility to SARS-CoV-2 infection by undefined mechanisms. Pregnant women infected with SARS-CoV-2 show higher rates of preterm birth and caesarean delivery, and their placentas show signs of vasculopathy and inflammation. It is still unclear whether the foetus is affected by the maternal infection with this virus and whether maternal infection associates with postnatal affections. The SARS-CoV-2 infection causes oxidative stress and activation of the immune system leading to cytokine storm and next tissue damage as seen in the lung. The angiotensin-converting-enzyme 2 expression is determinant for these alterations in the lung. Since this enzyme is expressed in the human placenta, SARS-CoV-2 could infect the placenta tissue, although reported to be of low frequency compared with maternal lung tissue. Early-onset preeclampsia (eoPE) shows higher expression of ADAM17 (a disintegrin and metalloproteinase 17) causing an imbalanced renin-angiotensin system and endothelial dysfunction. A similar mechanism seems to potentially account for SARS-CoV-2 infection. This review highlights the potentially common characteristics of pregnant women with eoPE with those with COVID-19. A better understanding of the mechanisms of SARS-CoV-2 infection and its impact on the placenta function is determinant since eoPE/COVID-19 association may result in maternal metabolic alterations that might lead to a potential worsening of the foetal programming of diseases in the neonate, young, and adult.
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Mika F, Norikazu W, Keiko Y, Seiji T, Satoru N. The Change of Oxidative Stress in Maternal Blood During Pregnancy. Reprod Sci 2022; 29:2580-2585. [PMID: 35025099 DOI: 10.1007/s43032-022-00848-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Accepted: 01/06/2022] [Indexed: 10/19/2022]
Abstract
Oxidative stress (OS) is a state in which the oxidative capacity exceeds the antioxidant capacity in vivo. OS is associated with various perinatal diseases. There have been few reports about OS during pregnancy, such as OS changes that occur during gestation, normal maternal OS dynamics, and OS levels in umbilical cord blood. We here examined the oxidative and antioxidant capacity in maternal blood as well as in umbilical cord vein blood during normal pregnancy. Pregnant women managed from early pregnancy to the postpartum period in our hospital, from April 2018 to March 2019, were included. We obtained maternal blood at 12, 24, and 36 weeks of gestation and obtained umbilical cord blood at delivery. The OS (derivatives of reactive oxygen metabolites [d-ROMs]) and antioxidant capacity (biological antioxidant potential [BAP]) of blood samples were measured. D-ROMs and BAP were compared across gestational weeks. Moreover, d-ROMs and BAP were compared between mothers with and without disease. We analyzed 100 pregnancies (651 specimens). Eleven patients developed hypertensive disorder of pregnancy (HDP)/preeclampsia (PE). The median maternal age was 35 years, and the median gestational age at delivery was 39 weeks. Thirty-one women had undergone fertility treatments. D-ROM values were significantly higher and BAP values were significantly lower in mid- and late pregnancy than in early pregnancy. D-ROM and BAP showed no significant differences between HDP/PE and non-hypertensive groups. During pregnancy, maternal OS increases, and antioxidant capacity decreases with advancing gestational age.
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Affiliation(s)
- Fukase Mika
- Department of Obstetrics and Gynecology, Faculty of Medicine, Yamagata University, Iida-nishi, 2-2-2, Yamagata, 990-9585, Japan.
| | - Watanabe Norikazu
- Department of Obstetrics and Gynecology, Faculty of Medicine, Yamagata University, Iida-nishi, 2-2-2, Yamagata, 990-9585, Japan
| | - Yamanouchi Keiko
- Department of Obstetrics and Gynecology, Faculty of Medicine, Yamagata University, Iida-nishi, 2-2-2, Yamagata, 990-9585, Japan
| | - Tsutsumi Seiji
- Department of Obstetrics and Gynecology, Faculty of Medicine, Yamagata University, Iida-nishi, 2-2-2, Yamagata, 990-9585, Japan
| | - Nagase Satoru
- Department of Obstetrics and Gynecology, Faculty of Medicine, Yamagata University, Iida-nishi, 2-2-2, Yamagata, 990-9585, Japan
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Bagci S, Katzer D, Altuntas Ö, Alsat EA, Berg C, Rebeggiani L, Bartmann P, Müller A. The fetal gastrointestinal tract is exposed to melatonin and superoxide dismutase rich amniotic fluid throughout prenatal development. J Clin Biochem Nutr 2022; 71:64-68. [PMID: 35903605 PMCID: PMC9309090 DOI: 10.3164/jcbn.21-130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2021] [Accepted: 11/10/2021] [Indexed: 11/22/2022] Open
Abstract
Amniotic fluid (AF) is the first fluid to enter the gastrointestinal tract. Preterm birth is leading to a sudden interruption of AF swallowing. Understanding the composition of amniotic fluid is crucial to implement strategies preventing intestinal injury in preterm infants. We hypothesized that the fetal gastrointestinal tract (GIT) is exposed to melatonin and antioxidant enzymes via amniotic fluid throughout prenatal development. Amniotic fluid samples from 76 pregnant women with a median (range) gestational age of 38.0 (14.3–40.1) weeks have been collected. Immediately after birth blood samples were collected from the umbilical vein (n = 53). Median (Interquartile range) melatonin concentration was 30.5 pg/ml (12.7–118.3) and superoxide dismutase 1 (SOD1) concentration was 84 ng/ml (59–123). Extracellular glutathione peroxidase concentration was either not detectable or exceptionally low. We found a positive correlation between melatonin concentration in amniotic fluid and gestational age (Spearman’s correlation coefficient, r = 0.570, p<0.001), while SOD1 concentration in amniotic fluid was inversely correlated with gestational age (r = −0.246, p = 0.032). Compared to serum samples, melatonin concentration was statistically significantly higher in amniotic fluid (p<0.001). Our results indicate that the fetal gastrointestinal system is continuously exposed to melatonin and SOD1 via the amniotic fluid throughout prenatal development.
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Affiliation(s)
- Soyhan Bagci
- Neonatology and Pediatric Intensive Care, Children’s Hospital, University of Bonn, Venusberg-Campus-1
| | - David Katzer
- Department of Pediatric Gastroenterology, Children’s Hospital, University of Bonn, Venusberg-Campus-1
| | - Özlem Altuntas
- Neonatology and Pediatric Intensive Care, Children’s Hospital, University of Bonn, Venusberg-Campus-1
| | - Ebru A. Alsat
- Neonatology and Pediatric Intensive Care, Children’s Hospital, University of Bonn, Venusberg-Campus-1
| | - Christoph Berg
- Department of Obstetrics and Prenatal Medicine, University of Bonn, Venusberg-Campus-1
| | | | - Peter Bartmann
- Neonatology and Pediatric Intensive Care, Children’s Hospital, University of Bonn, Venusberg-Campus-1
| | - Andreas Müller
- Neonatology and Pediatric Intensive Care, Children’s Hospital, University of Bonn, Venusberg-Campus-1
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Fragoso MBT, Ferreira RC, Tenório MCDS, Moura FA, de Araújo ORP, Bueno NB, Goulart MOF, de Oliveira ACM. Biomarkers of Inflammation and Redox Imbalance in Umbilical Cord in Pregnancies with and without Preeclampsia and Consequent Perinatal Outcomes. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:9970627. [PMID: 34795845 PMCID: PMC8595010 DOI: 10.1155/2021/9970627] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/06/2021] [Revised: 07/16/2021] [Accepted: 10/11/2021] [Indexed: 01/09/2023]
Abstract
OBJECTIVE To compare redox imbalance and inflammation biomarkers in umbilical cords from pregnancies with and without preeclampsia (PE) and to analyse their relationships with perinatal outcomes. METHODS A controlled cross-sectional study was conducted in Maceió, Alagoas, Brazil, that involved pregnant women with PE and a group of women without the disease, through the application of a standardized questionnaire. After delivery, umbilical cord samples were collected to measure antioxidant defense, products from oxidative damage, and inflammation biomarkers such as myeloperoxidase (MPO), interleukin- (IL-) 6, IL-8, IL-10, and tumor necrosis factor-alpha (TNF-α). Statistical analyses were performed using Stata version 13.0 software and IBM Statistical Package for the Social Sciences (SPSS) 20.0, adopting a 95% confidence level (α = 0.05), with the chi-square test, the Wilcoxon-Mann-Whitney test, and the multinomial and Poisson regression tests. RESULTS One hundred PE pregnant women and 50 women without the disease were studied. The umbilical cords from PE pregnancies showed higher levels of reduced glutathione (GSH) (p ≤ 0.001), glutathione peroxidase (GPx) (p = 0.016), and malondialdehyde (MDA) (p = 0.028) and lower levels of IL-6 (p = 0.030) and TNF-α (p ≤ 0.001) than the other group, with some associations among these biomarkers with perinatal outcomes. CONCLUSION The higher levels of GSH and GPx, in addition to the lower levels of IL-6 and TNF-α, found in the PE umbilical cord, may result from adaptive mechanisms to maintain the oxidative and inflammatory balance; however, despite these changes, the damage to the cell membranes was not minimized, as the MDA level was higher in women with PE than in women without the disease. This implies that a redox imbalance is present, confirming that other physiological and adaptive mechanisms are being activated to preserve foetal health. Therefore, the present work unveils an important role of the umbilical cord in controlling redox imbalance and inflammation in PE pregnancies. Our results reinforce the necessity for continuous research on GSH as a protective compound for the perinatal outcome, especially in PE women.
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Affiliation(s)
- Marilene Brandão Tenório Fragoso
- Instituto de Química e Biotecnologia (IQB/UFAL), Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Raphaela Costa Ferreira
- Programa de Pós-graduação em Ciências da Saúde, ICBS, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Micaely Cristina dos Santos Tenório
- Instituto de Química e Biotecnologia (IQB/UFAL), Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Fabiana Andréa Moura
- Faculdade de Nutrição, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Orlando Roberto Pimentel de Araújo
- Instituto de Química e Biotecnologia (IQB/UFAL), Programa de Pós-graduação Em Química e Biotecnologia, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Nassib Bezerra Bueno
- Faculdade de Nutrição, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Marília Oliveira Fonseca Goulart
- Instituto de Química e Biotecnologia (IQB/UFAL), Rede Nordeste de Biotecnologia (RENORBIO), Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
- Programa de Pós-graduação em Ciências da Saúde, ICBS, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
- Instituto de Química e Biotecnologia (IQB/UFAL), Programa de Pós-graduação Em Química e Biotecnologia, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
| | - Alane Cabral Menezes de Oliveira
- Faculdade de Nutrição, Universidade Federal de Alagoas, Campus A. C. Simões, BR 104 Norte, Km. 96.7, Tabuleiro dos Martins, CEP 57.072-970 Maceió, Alagoas, Brazil
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15
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Erlandsson L, Masoumi Z, Hansson LR, Hansson SR. The roles of free iron, heme, haemoglobin, and the scavenger proteins haemopexin and alpha-1-microglobulin in preeclampsia and fetal growth restriction. J Intern Med 2021; 290:952-968. [PMID: 34146434 DOI: 10.1111/joim.13349] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
BACKGROUND Preeclampsia (PE) is a complex pregnancy syndrome characterised by maternal hypertension and organ damage after 20 weeks of gestation and is associated with an increased risk of cardiovascular disease later in life. Extracellular haemoglobin (Hb) and its metabolites heme and iron are highly toxic molecules and several defence mechanisms have evolved to protect the tissue. OBJECTIVES We will discuss the roles of free iron, heme, Hb, and the scavenger proteins haemopexin and alpha-1-microglobulin in pregnancies complicated by PE and fetal growth restriction (FGR). CONCLUSION In PE, oxidative stress causes syncytiotrophoblast (STB) stress and increased shedding of placental STB-derived extracellular vesicles (STBEV). The level in maternal circulation correlates with the severity of hypertension and supports the involvement of STBEVs in causing maternal symptoms in PE. In PE and FGR, iron homeostasis is changed, and iron levels significantly correlate with the severity of the disease. The normal increase in plasma volume taking place during pregnancy is less for PE and FGR and therefore have a different impact on, for example, iron concentration, compared to normal pregnancy. Excess iron promotes ferroptosis is suggested to play a role in trophoblast stress and lipotoxicity. Non-erythroid α-globin regulates vasodilation through the endothelial nitric oxide synthase pathway, and hypoxia-induced α-globin expression in STBs in PE placentas is suggested to contribute to hypertension in PE. Underlying placental pathology in PE with and without FGR might be amplified by iron and heme overload causing oxidative stress and ferroptosis. As the placenta becomes stressed, the release of STBEVs increases and affects the maternal vasculature.
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Affiliation(s)
- Lena Erlandsson
- Division of Obstetrics and Gynecology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Zahra Masoumi
- Division of Obstetrics and Gynecology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Lucas R Hansson
- Division of Obstetrics and Gynecology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden
| | - Stefan R Hansson
- Division of Obstetrics and Gynecology, Department of Clinical Sciences Lund, Lund University, Lund, Sweden.,Obstetrics and Gynecology, Skåne University Hospital, Lund/Malmö, Sweden
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16
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Characterization of Mitochondrial Bioenergetics in Preeclampsia. J Clin Med 2021; 10:jcm10215063. [PMID: 34768583 PMCID: PMC8584662 DOI: 10.3390/jcm10215063] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Revised: 10/19/2021] [Accepted: 10/24/2021] [Indexed: 01/07/2023] Open
Abstract
Preeclampsia (PE) is characterized by new onset hypertension during pregnancy and is associated with oxidative stress, placental ischemia, and autoantibodies to the angiotensin II type I receptor (AT1-AA). Mitochondrial (mt) dysfunction in PE and various sources of oxidative stress, such as monocytes, neutrophils, and CD4 + T cells, have been identified as important players in the pathophysiology of PE. We have established the significance of AT1-AA, TNF-α, and CD4 + T cells in causing mitochondrial (mt) dysfunction in renal and placental tissues in pregnant rats. Although the role of mt dysfunction from freshly isolated intact placental mitochondria has been compared in human PE and normally pregnant (NP) controls, variations among preterm PE or term PE have not been compared and mechanisms contributing to mt ROS during PE are unclear. Therefore, we hypothesized PE placentas would exhibit impaired placental mt function, which would be worse in preterm PE patients than in those of later gestational ages. Immediately after delivery, PE and NP patient’s placentas were collected, mt were isolated and mt respiration and ROS were measured. PE patients at either < or >34 weeks gestational age (GA) exhibited elevated blood pressure and decreased placental mt respiration rates (state 3 and maximal). Patients delivering at >34 weeks exhibited decreased Complex IV activity and expression. Placental mtROS was significantly reduced in both PE groups, compared to NP placental mitochondria. Collectively, the study demonstrates that PE mt dysfunction occurs in the placenta, with mtROS being lower than that seen in NP controls. These data indicate why antioxidants, as a potential target or new therapeutic agent, may not be ideal in treating the oxidative stress associated with PE.
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17
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The Role of Oxidative Stress in Hypertensive Disorders of Pregnancy (Preeclampsia, Gestational Hypertension) and Metabolic Disorder of Pregnancy (Gestational Diabetes Mellitus). OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2021; 2021:5581570. [PMID: 34194606 PMCID: PMC8184326 DOI: 10.1155/2021/5581570] [Citation(s) in RCA: 64] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/24/2021] [Accepted: 04/25/2021] [Indexed: 11/17/2022]
Abstract
Purpose of the Review.To highlight the role of oxidative stress in hypertensive disorders of pregnancy (HDP) and metabolic disorders of pregnancy (gestational diabetes mellitus). Recent Findings. In both preeclampsia (PE) and gestational hypertension (GH), oxidative stress leads to inadequate placental perfusion thus resulting in a hypoxic placenta, which generally leads to the activation of maternal systemic inflammatory response. In PE, this causes inflammation in the kidneys and leads to proteinuria. A proteinuria marker known as urinary 8-oxoGuo excretion is expressed in preeclampsia. In GDM, oxidative stress plays a role in the pathogenesis of the disease, as a result of over secretion of insulin during pregnancy. This uncontrolled secretion of insulin results in the production of lipid peroxidation factors that also mask the secretion of antioxidants. Therefore, ROS becomes abundant at cellular level and prevents the cells from transporting glucose to body tissues. Summary. There is a need for more research investigating the role of oxidative stress, especially in obstetrics-related conditions. More studies are required in order to understand the difference between the pathogenesis and pathophysiology of PE versus GH since investigations on the differences in genetic aspects of each condition are lacking. Furthermore, research to improve diagnostic procedures for GDM in pregnancy is needed.
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Placenta-derived IL-32β activates neutrophils to promote preeclampsia development. Cell Mol Immunol 2021; 18:979-991. [PMID: 33707686 PMCID: PMC8115232 DOI: 10.1038/s41423-021-00636-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Accepted: 01/03/2021] [Indexed: 12/16/2022] Open
Abstract
Immune activation at the maternal-fetal interface is a main pathogenic factor of preeclampsia (PE). Neutrophils (PMNs) are activated in PE patients, but the mechanism and consequences of PMN activation need to be further explored. Here, we demonstrated that interleukin-32 (IL-32) expression was significantly upregulated in syncytiotrophoblasts (STBs) and that IL-32β was the major isoform with increased expression in the placenta of severe PE (sPE) patients. Furthermore, the level of IL-32 expression in the placenta was correlated with its level in the serum of sPE patients, indicating that IL-32 in the serum is derived mainly from the placenta. Then, in vitro experiments showed that IL-32β could highly activate PMNs and that these IL-32β-activated PMNs were better able to adhere to endothelial cells (HUVECs) and enhance the expression of vascular cell adhesion molecule-1 (VCAM-1) and intercellular cell adhesion molecule-1 (ICAM-1) in HUVECs, which could be reversed by preincubation with the NADPH oxidase inhibitor VAS 2870. In addition, we showed that IL-32β mainly activated PMNs by binding to proteinase 3. Finally, IL-32β administration induced a PE-like phenotype in a pregnant mouse model. This study provides evidence of the involvement of IL-32β in the pathogenesis of PE.
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19
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Hu XQ, Zhang L. Hypoxia and Mitochondrial Dysfunction in Pregnancy Complications. Antioxidants (Basel) 2021; 10:antiox10030405. [PMID: 33800426 PMCID: PMC7999178 DOI: 10.3390/antiox10030405] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 03/02/2021] [Accepted: 03/03/2021] [Indexed: 02/07/2023] Open
Abstract
Hypoxia is a common and severe stress to an organism's homeostatic mechanisms, and hypoxia during gestation is associated with significantly increased incidence of maternal complications of preeclampsia, adversely impacting on the fetal development and subsequent risk for cardiovascular and metabolic disease. Human and animal studies have revealed a causative role of increased uterine vascular resistance and placental hypoxia in preeclampsia and fetal/intrauterine growth restriction (FGR/IUGR) associated with gestational hypoxia. Gestational hypoxia has a major effect on mitochondria of uteroplacental cells to overproduce reactive oxygen species (ROS), leading to oxidative stress. Excess mitochondrial ROS in turn cause uteroplacental dysfunction by damaging cellular macromolecules, which underlies the pathogenesis of preeclampsia and FGR. In this article, we review the current understanding of hypoxia-induced mitochondrial ROS and their role in placental dysfunction and the pathogenesis of pregnancy complications. In addition, therapeutic approaches selectively targeting mitochondrial ROS in the placental cells are discussed.
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20
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Granitzer S, Widhalm R, Forsthuber M, Ellinger I, Desoye G, Hengstschläger M, Zeisler H, Salzer H, Gundacker C. Amino Acid Transporter LAT1 (SLC7A5) Mediates MeHg-Induced Oxidative Stress Defense in the Human Placental Cell Line HTR-8/SVneo. Int J Mol Sci 2021; 22:ijms22041707. [PMID: 33567754 PMCID: PMC7915079 DOI: 10.3390/ijms22041707] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2020] [Revised: 02/02/2021] [Accepted: 02/05/2021] [Indexed: 12/25/2022] Open
Abstract
The placental barrier can protect the fetus from contact with harmful substances. The potent neurotoxin methylmercury (MeHg), however, is very efficiently transported across the placenta. Our previous data suggested that L-type amino acid transporter (LAT)1 is involved in placental MeHg uptake, accepting MeHg-L-cysteine conjugates as substrate due to structural similarity to methionine. The aim of the present study was to investigate the antioxidant defense of placental cells to MeHg exposure and the role of LAT1 in this response. When trophoblast-derived HTR-8/SVneo cells were LAT1 depleted by siRNA-mediated knockdown, they accumulated less MeHg. However, they were more susceptible to MeHg-induced toxicity. This was evidenced in decreased cell viability at a usually noncytotoxic concentration of 0.03 µM MeHg (~6 µg/L). Treatment with ≥0.3 µM MeHg increased cytotoxicity, apoptosis rate, and oxidative stress of HTR-8/SVneo cells. These effects were enhanced under LAT1 knockdown. Reduced cell number was seen when MeHg-exposed cells were cultured in medium low in cysteine, a constituent of the tripeptide glutathione (GSH). Because LAT1-deficient HTR-8/SVneo cells have lower GSH levels than control cells (independent of MeHg treatment), we conclude that LAT1 is essential for de novo synthesis of GSH, required to counteract oxidative stress. Genetic predisposition to decreased LAT1 function combined with MeHg exposure could increase the risk of placental damage.
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Affiliation(s)
- Sebastian Granitzer
- Karl-Landsteiner Private University for Health Sciences, A-3500 Krems, Austria; (S.G.); (R.W.)
- Institute of Medical Genetics, Medical University of Vienna, A-1090 Vienna, Austria; (M.F.); (M.H.)
| | - Raimund Widhalm
- Karl-Landsteiner Private University for Health Sciences, A-3500 Krems, Austria; (S.G.); (R.W.)
- Institute of Medical Genetics, Medical University of Vienna, A-1090 Vienna, Austria; (M.F.); (M.H.)
| | - Martin Forsthuber
- Institute of Medical Genetics, Medical University of Vienna, A-1090 Vienna, Austria; (M.F.); (M.H.)
| | - Isabella Ellinger
- Department of Pathophysiology and Allergy Research, Medical University of Vienna, A-1090 Vienna, Austria;
| | - Gernot Desoye
- Department of Obstetrics and Gynecology, Medical University of Graz, A-8036 Graz, Austria;
| | - Markus Hengstschläger
- Institute of Medical Genetics, Medical University of Vienna, A-1090 Vienna, Austria; (M.F.); (M.H.)
| | - Harald Zeisler
- Department of Obstetrics and Gynecology, Medical University Vienna, A-1090 Vienna, Austria;
| | - Hans Salzer
- Clinical Department of Pediatrics and Adolescent Medicine, University Hospital Tulln, A-3430 Tulln, Austria;
| | - Claudia Gundacker
- Institute of Medical Genetics, Medical University of Vienna, A-1090 Vienna, Austria; (M.F.); (M.H.)
- Correspondence: ; Tel.: +43-1-40160-56503
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21
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Godhamgaonkar AA, Sundrani DP, Joshi SR. Role of maternal nutrition and oxidative stress in placental telomere attrition in women with preeclampsia. Hypertens Pregnancy 2021; 40:63-74. [PMID: 33406938 DOI: 10.1080/10641955.2020.1869248] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Background:Maternal nutrition influences the growth and development of the fetus and influences pregnancy outcome. We have earlier demonstrated altered maternal nutrition and increased oxidative stress in women with preeclampsia. Oxidative stress is known to be associated with reduced telomere length and short telomere aggregates. Increased telomere attrition leads to increased cellular senescence and tissue ageing. Methods:The present review focuses on the role of maternal nutrition and oxidative stress in telomere attrition in preeclampsia. Results and Conclusion:Future studies need to examine the association between maternal nutritional status in early pregnancy, oxidative stress and telomere attrition in preeclampsia.
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Affiliation(s)
- Aditi A Godhamgaonkar
- Mother and Child Health, Interactive Research School of Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University) , Pune, India
| | - Deepali P Sundrani
- Mother and Child Health, Interactive Research School of Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University) , Pune, India
| | - Sadhana R Joshi
- Mother and Child Health, Interactive Research School of Health Affairs (IRSHA), Bharati Vidyapeeth (Deemed to Be University) , Pune, India
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22
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Deer E, Vaka VR, McMaster KM, Wallace K, Cornelius DC, Amaral LM, Cunningham MW, LaMarca B. Vascular endothelial mitochondrial oxidative stress in response to preeclampsia: a role for angiotension II type 1 autoantibodies. Am J Obstet Gynecol MFM 2021; 3:100275. [PMID: 33451592 PMCID: PMC8092846 DOI: 10.1016/j.ajogmf.2020.100275] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2020] [Revised: 10/15/2020] [Accepted: 10/26/2020] [Indexed: 01/10/2023]
Abstract
BACKGROUND Preeclampsia is characterized by a new onset of hypertension during pregnancy and is associated with autoantibodies against the angiotensin II type 1 receptor and oxidative stress. There is growing evidence for mitochondrial dysfunction in preeclampsia, however, the culprits for mitochondrial dysfunction are still being defined. We previously demonstrated that angiotensin II type 1 autoantibodies cause renal, placental, and endothelial mitochondrial dysfunction in pregnant rats. However, the role of the angiotensin II type 1 autoantibodies in endothelial mitochondrial function in response to sera from preeclamptics is unknown. Thus, we hypothesized that circulating factors, such as the angiotensin II type 1 autoantibodies, during preeclampsia would negatively impact the vascular endothelial mitochondrial function in human umbilical vein endothelial cells. OBJECTIVE The objective of the study was to determine a role for circulating angiotensin II type 1 autoantibodies to cause endothelial mitochondrial reactive oxygen species and dysfunction in preeclampsia compared to normal pregnant controls. STUDY DESIGN Immediately after delivery, sera was collected from preeclamptic patients and normal pregnant controls. The mitochondrial reactive oxygen species were determined from the cells treated overnight with 10% sera from either the control or preeclamptic patients with and without the antiotension II type 1 autoantibodies inhibitor peptide ('n7AAc'). RESULTS Preeclampsia patients at <34 weeks' gestation exhibited an elevated mean arterial blood pressure. Cells treated with serum from the preeclampsia patients at <34 weeks gestational age showed significantly (P<0.05) greater mitochondrial oxidative stress and reduced respiration than cells treated with the control sera, and these abnormalities were restored with 'n7AAc'. CONCLUSION This study demonstrates that endothelial mitochondrial dysfunction occurs in response to circulating factors, especially in response to serum from preterm preeclampsia patients, and can be restored by blocking circulating angiotensin II type 1 autoantibodies, thereby indicating a potential new therapeutic target for preeclampsia.
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Affiliation(s)
- Evangeline Deer
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS
| | - V Ramana Vaka
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS
| | - Kristen M McMaster
- Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, MS
| | - Kedra Wallace
- Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, MS
| | - Denise C Cornelius
- Department of Emergency Medicine, University of Mississippi Medical Center, Jackson, MS
| | - Lorena M Amaral
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS
| | - Mark W Cunningham
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS
| | - Babbette LaMarca
- Department of Pharmacology and Toxicology, University of Mississippi Medical Center, Jackson, MS; Department of Obstetrics and Gynecology, University of Mississippi Medical Center, Jackson, MS.
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Oxidative stress and mitochondrial dysfunction in early-onset and late-onset preeclampsia. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165961. [PMID: 32916282 DOI: 10.1016/j.bbadis.2020.165961] [Citation(s) in RCA: 77] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 02/06/2023]
Abstract
Preeclampsia is a pregnancy-specific syndrome with multisystem involvement which leads to foetal, neonatal, and maternal morbidity and mortality. This syndrome is characterized by the onset of clinical signs and symptoms and delivery before (early-onset preeclampsia, eoPE), or after (late-onset preeclampsia, loPE), the 34 weeks of gestation. Preeclampsia is a mitochondrial disorder where its differential involvement in eoPE and loPE is unclear. Mitochondria regulate cell metabolism and are a significant source of reactive oxygen species (ROS). The syncytiotrophoblast in eoPE and loPE show altered mitochondrial structure and function resulting in ROS overproduction, oxidative stress, and cell damage and death. Mitochondrial dysfunction in eoPE may result from altered expression of several molecules, including dynamin-related protein 1 and mitofusins, compared with loPE where these factors are either reduced or unaltered. Equally, mitochondrial fusion/fission dynamics seem differentially modulated in eoPE and loPE. It is unclear whether the electron transport chain and oxidative phosphorylation are differentially altered in these two subgroups of preeclampsia. However, the activity of complex IV (cytochrome c oxidase) and the expression of essential proteins involved in the electron transport chain are reduced, leading to lower oxidative phosphorylation and mitochondrial respiration in the preeclamptic placenta. Interventional studies in patients with preeclampsia using the coenzyme Q10, a key molecule in the electron transport chain, suggest that agents that increase the antioxidative capacity of the placenta may be protective against preeclampsia development. In this review, the mitochondrial dysfunction in both eoPE and loPE is summarized. Therapeutic approaches are discussed in the context of contributing to the understanding of mitochondrial dysfunction in eoPE and loPE.
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Ferreira RC, Fragoso MBT, Bueno NB, Goulart MOF, de Oliveira ACM. Oxidative stress markers in preeclamptic placentas: A systematic review with meta-analysis. Placenta 2020; 99:89-100. [PMID: 32763617 DOI: 10.1016/j.placenta.2020.07.023] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 06/27/2020] [Accepted: 07/22/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION Oxidative stress (OS) is the basis of several diseases. Preeclampsia (PE) is a multisystemic syndrome, considered one of the major causes of maternal and fetal mortality. The placenta is considered the main anatomical pathogenetic substrate for the disease, being the placental OS a likely critical pathway in the pathogenesis of PE. This meta-analysis aimed to verify whether there is OS in the preeclamptic placenta and which markers are altered in this condition. METHODS The search was conducted in the following databases: MEDLINE (via PubMed), Lilacs and Scopus. Relevant studies were identified until May 2020. The quality of the studies was evaluated according to the Newcastle-Ottawa scale. RESULTS From the 3998 screened records, 43 were finally included in the systematic review, and 23 in the meta-analysis. The biomarkers evaluated were related to cell and macromolecules' damage, such as malondialdehyde (MDA), 8-hydroxy-2'-deoxyguanosine (8-OH-dG), lipid peroxides, isoprostane, total oxidant status (TOS), carbonylated proteins and some of the reactive oxygen and nitrogen species (RONS), like hydrogen peroxide and nitric oxide. It was also related to antioxidant activity, both enzymatic, including superoxide dismutase (SOD), catalase, glutathione peroxidase (GPx), glutathione S-transferase and total antioxidant status, and non-enzymatic, through quantification of reduced glutathione, vitamin C and E, zinc and copper. CONCLUSION It was observed that there was OS in the preeclamptic placentas, based on results, like lower activity of some of the enzymes of the antioxidant system (SOD and GPx) as well as the increase in oxidative damage markers (MDA and lipid peroxide), corroborating literature data.
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Affiliation(s)
- Raphaela Costa Ferreira
- Instituto de Ciências Biológicas e da Saúde da Universidade Federal de Alagoas (ICBS/UFAL), Maceió, Alagoas, Brazil
| | | | - Nassib Bezerra Bueno
- Faculdade de Nutrição da Universidade Federal de Alagoas (FANUT/UFAL), Maceió, Alagoas, Brazil
| | - Marília Oliveira Fonseca Goulart
- Instituto de Ciências Biológicas e da Saúde da Universidade Federal de Alagoas (ICBS/UFAL), Maceió, Alagoas, Brazil; Instituto de Química e Biotecnologia (IQB/UFAL); Rede Nordeste de Biotecnologia (RENORBIO), Maceió, Alagoas, Brazil
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Biomarkers of placental redox imbalance in pregnancies with preeclampsia and consequent perinatal outcomes. Arch Biochem Biophys 2020; 691:108464. [PMID: 32592803 DOI: 10.1016/j.abb.2020.108464] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 05/20/2020] [Accepted: 06/07/2020] [Indexed: 01/10/2023]
Abstract
OBJECTIVE To compare redox and inflammatory markers between normal and PE-derived placentas and to evaluate the relationship between placental redox imbalance markers and perinatal outcomes in pregnancies with PE. METHODS This was a cross-sectional study conducted at the maternity hospital of a university hospital in Maceio-Alagoas, Brazil, in 2017, including women diagnosed with PE and healthy pregnant women and their conceptuses. After screening, standardized questionnaires containing socioeconomic, clinical, obstetric and anthropometric data were applied. After delivery, placental samples were collected for quantification of biomarkers of redox imbalance (catalase - CAT; malondialdehyde - MDA; hydrogen peroxide - H2O2; superoxide dismutase - SOD; reduced glutathione - GSH; oxidized glutathione - GSSG; and their ratio - GSH/GSSG) and inflammation (myeloperoxidase - MPO; interleukin (IL)-6; IL-8; IL-10; and tumor necrosis factor-alpha - TNF-α). All biomarkers were evaluated via linear regression with adjustments of variables with measures of weight, length, head circumference (HC), chest circumference (CC) and gestational age of newborns at birth, considering p < 0.05 as significant. RESULTS A total of 100 pregnant women with PE and 50 healthy pregnant women were studied. Higher placental levels of catalase (p = 0.018), SOD (p = 0.031), the GSH/GSSG ratio (p = 0.019) and IL-6 (p = 0.010) and lower GSSG (p = 0.001) were observed in pregnant women with PE than in the control group. Positive associations between placental GSH levels and body weight, HC, CC and gestational age at birth (p < 0.05) were identified. CONCLUSION PE-derived placentas had high concentrations of some antioxidants (enzymes and thiols), which might be a compensation mechanism against oxidative stress. Placental GSH levels were the only biomarker, among the studied ones, related positively with beneficial perinatal outcomes, suggesting that this endogenous antioxidant plays an important role in maintaining the health of the conceptus and women with PE.
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Oxidative stress: Normal pregnancy versus preeclampsia. Biochim Biophys Acta Mol Basis Dis 2020; 1866:165354. [DOI: 10.1016/j.bbadis.2018.12.005] [Citation(s) in RCA: 84] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 11/22/2018] [Accepted: 12/05/2018] [Indexed: 02/03/2023]
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Vaka VR, McMaster KM, Cunningham MW, Ibrahim T, Hazlewood R, Usry N, Cornelius DC, Amaral LM, LaMarca B. Role of Mitochondrial Dysfunction and Reactive Oxygen Species in Mediating Hypertension in the Reduced Uterine Perfusion Pressure Rat Model of Preeclampsia. Hypertension 2019; 72:703-711. [PMID: 30012871 DOI: 10.1161/hypertensionaha.118.11290] [Citation(s) in RCA: 110] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Placental ischemia is believed to be the initial event in the development of preeclampsia. Mitochondrial dysfunction is a cause of reactive oxygen species (ROS) generation and oxidative stress, however, there are not many studies examining the role of mitochondrial ROS in the pathology of preeclampsia. The purpose of this study was to not only examine the effect of placental ischemia on mitochondrial-mediated oxidative stress in reduced uterine perfusion pressure (RUPP) rat model of preeclampsia but to also examine the role of mitochondrial ROS in contributing to hypertension in response to placental ischemia. Female pregnant Sprague Dawley rats were used in this study. On gestational day 14, RUPP surgery was performed. On gestational day 19, blood pressure (mean arterial pressure) was measured, placentas and kidneys were collected from normal pregnant and RUPP rats and processed for mitochondrial respiration, ROS, and oxidative phosphorylation enzyme activities. Renal and placental complex activities, expressions and respiration rates were significantly reduced and mitochondrial ROS was increased in RUPP versus normal pregnant mitochondria. Mean arterial pressure was elevated in RUPP (n=6) compared with normal pregnant rats (n=5; 126±4 versus 103±4 mm Hg; P<0.05) and treatment with mitochondrial-specific antioxidants (MitoQ/MitoTEMPO) significantly reduced mean arterial pressure in RUPPs (n=5-10). Mitochondrial ROS was significantly elevated in endothelial cells incubated with RUPP serum compared from with normal pregnant rats, whereas serum from mito antioxidant-treated RUPP rats attenuated this response. Impaired mitochondrial function and vascular, placental, and renal mitochondrial ROS play an important role in hypertension and reduced fetal weight in response to placental ischemia during pregnancy.
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Affiliation(s)
- Venkata Ramana Vaka
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.)
| | | | - Mark W Cunningham
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.)
| | - Tarek Ibrahim
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.)
| | - Rebekah Hazlewood
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.)
| | - Nathan Usry
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.)
| | - Denise C Cornelius
- Department of Emergency Medicine (D.C.C.), University of Mississippi Medical Center, Jackson
| | - Lorena M Amaral
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.)
| | - Babbette LaMarca
- From the Department of Pharmacology and Toxicology (V.R.V., M.W.C., T.I., R.H., N.U., L.M.A., B.L.).,Department of Obstetrics and Gynecology (K.M.M., B.L.)
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Kawasaki K, Kondoh E, Chigusa Y, Kawamura Y, Mogami H, Takeda S, Horie A, Baba T, Matsumura N, Mandai M, Konishi I. Metabolomic Profiles of Placenta in Preeclampsia. Hypertension 2019; 73:671-679. [DOI: 10.1161/hypertensionaha.118.12389] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Kaoru Kawasaki
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
- Department of Obstetrics and Gynaecology, National Hospital Organization Kyoto Medical Center, Japan (K.K., I.K.)
| | - Eiji Kondoh
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Yoshitsugu Chigusa
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Yosuke Kawamura
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Haruta Mogami
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Satoru Takeda
- Department of Obstetrics and Gynaecology, Juntendo University, Tokyo, Japan (S.T.)
| | - Akihito Horie
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Tsukasa Baba
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Noriomi Matsumura
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Masaki Mandai
- From the Department of Gynaecology and Obstetrics, Kyoto University, Japan (K.K., E.K., Y.C., Y.K., H.M., A.H., T.B., N.M., M.M.)
| | - Ikuo Konishi
- Department of Obstetrics and Gynaecology, National Hospital Organization Kyoto Medical Center, Japan (K.K., I.K.)
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Silberstein T, Hamou B, Cervil S, Barak T, Burg A, Saphier O. Colostrum of Preeclamptic Women Has a High Level of Polyphenols and Better Resistance to Oxidative Stress in Comparison to That of Healthy Women. OXIDATIVE MEDICINE AND CELLULAR LONGEVITY 2019; 2019:1380605. [PMID: 30918577 PMCID: PMC6408988 DOI: 10.1155/2019/1380605] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/09/2018] [Revised: 05/19/2018] [Accepted: 01/01/2019] [Indexed: 11/19/2022]
Abstract
Preeclampsia is a common pregnancy complication. Abnormal development of the placenta is the prevailing cause theory of this complication. Women with preeclampsia suffer from acute oxidative stress and high lipid oxidation in plasma. The aim of this study was to compare levels of polyphenols and lipid peroxidation in colostrum of nursing mothers with and without preeclampsia. The study was conducted at the Department of Obstetrics and Gynecology at Soroka University Medical Center. The study group consisting of 18 women, who were diagnosed with preeclampsia, was compared to the control group: 22 healthy women. The total phenolic content in the colostrum was determined by using the Folin-Ciocalteu method. Lipid peroxidation was determined by measuring MDA, using the TBARS assay. Polyphenol concentrations were significantly higher (about 33%) in the colostrum of the study group compared with the control group (p = 0.00042). Lipid peroxidation levels (MDA) were significantly lower (about 20%) in the colostrum of the study group compared with the control group (p = 0.03). Negative correlation was found between MDA concentration and the polyphenol level (R = -0.41, p = 0.02). In conclusion, we showed in this study a potential compensation mechanism that protects the newborn of a mother with preeclampsia from the stress process experienced by its mother.
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Affiliation(s)
- Tali Silberstein
- Department of Obstetrics and Gynecology, Soroka Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Batel Hamou
- Department of Obstetrics and Gynecology, Soroka Medical Center, Ben-Gurion University of the Negev, Beer-Sheva, Israel
| | - Shelly Cervil
- Department of Chemical Engineering, Sami Shamoon College of Engineering, Beer-Sheva, Israel
| | - Tamar Barak
- Department of Chemical Engineering, Sami Shamoon College of Engineering, Beer-Sheva, Israel
| | - Ariela Burg
- Department of Chemical Engineering, Sami Shamoon College of Engineering, Beer-Sheva, Israel
| | - Oshra Saphier
- Department of Chemical Engineering, Sami Shamoon College of Engineering, Beer-Sheva, Israel
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Feng YL, Yin YX, Ding J, Yuan H, Yang L, Xu JJ, Hu LQ. Alpha-1-antitrypsin suppresses oxidative stress in preeclampsia by inhibiting the p38MAPK signaling pathway: An in vivo and in vitro study. PLoS One 2017; 12:e0173711. [PMID: 28358847 PMCID: PMC5373516 DOI: 10.1371/journal.pone.0173711] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Accepted: 02/24/2017] [Indexed: 11/18/2022] Open
Abstract
This present study was designed to investigate the effects of alpha-1-antitrypsin (AAT) on oxidative stress in preeclampsia (PE) by regulating p38 mitogen-activated protein kinase (p38MAPK) signaling pathway. HTR8/SVneo cells were randomly assigned into normal, hypoxia/reoxygenation (H/R), HR + AAT and HR + siRNA-AAT groups. Quantitative real-time polymerase chain reaction (qRT-PCR) and Western blotting were used to detect the mRNA and protein expressions of p-p38MAPK, AAT, signal transducer and activator of transcription 1 (STAT1) and activating transcription factor2 (ATF2). Flow cytometry, scratch test, cell counting kit-8 (CCK-8) assay and the 3-(4,5)-dimethylthiazol (-z-y1)-3,5-di- phenyltetrazolium bromide (MTT) assay were conducted to detect reactive oxygen species (ROS) and cell apoptosis, cell migration, proliferation and cytotoxicity, respectively. Mouse models in PE were established, which were divided into normal pregnancy (NP), PE and PE + AAT groups with blood pressure and urine protein measured. Chromatin immunoprecipitation (ChIP) and enzyme-linked immunosorbent assay (ELISA) were conducted to detect the activity of oxidative stress-related kinases and expressions of inflammatory cytokines and coagulation-related factors in cells and mice placenta. Immunohistochemistry, Western blotting and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) assay were performed to detect AAT and p38MAPK expressions, apoptosis-related protein expressions, and apoptosis rate in mice placenta. Compared with the normal group, the H/R group had decreased expression of AAT, activity of superoxide dismutase (SOD) and GSH-Px, cell proliferation and migration, but increased p38MAPK, STAT1, ATF2, MDA, H2O2, inflammatory cytokines, coagulation-related factors, cell cytotoxicity, ROS, apoptotic factors and apoptosis rate. Compared with the H/R group, the HR + ATT group had increased expressions of AAT, activity of SOD and GSH-Px, cell proliferation and migration but decreased p38MAPK, STAT1, ATF2, malonyldialdehyde (MDA), H2O2, inflammatory cytokines and coagulation-related factors, cell cytotoxicity, ROS, apoptotic factors and apoptosis rate, while opposite results were observed in the HR + siRNA-ATT group. Compared with the NP group, the PE group had decreased activity of SOD and GSH-Px but increased MDA, H2O2, AAT, p38MAPK, inflammatory cytokines, coagulation-related factors and apoptosis rate. The indexes in the PE + AAT group were between the NP and PE groups. Thus, we concluded that AAT suppressed oxidative stress in PE by inhibiting p38MAPK signaling pathway.
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Affiliation(s)
- Ya-Ling Feng
- Department of Obstetrics and Gynecology, Wuxi Matemal and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, P.R. China
- * E-mail: (YLF); (LQH)
| | - Yong-Xiang Yin
- Department of Pathology, The Affiliated Maternity and Child Health Hospital of Nanjing Medical University, Wuxi, P.R. China
| | - Jian Ding
- Department of Obstetrics and Gynecology, Wuxi Matemal and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, P.R. China
| | - Hua Yuan
- Department of Obstetrics and Gynecology, Wuxi Matemal and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, P.R. China
| | - Lan Yang
- Department of Obstetrics and Gynecology, Wuxi Matemal and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, P.R. China
| | - Jian-Juan Xu
- Department of Obstetrics and Gynecology, Wuxi Matemal and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, P.R. China
| | - Ling-Qin Hu
- Department of Obstetrics and Gynecology, Wuxi Matemal and Child Health Hospital Affiliated to Nanjing Medical University, Wuxi, P.R. China
- * E-mail: (YLF); (LQH)
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Madoglio RJ, Rugolo LMSS, Kurokawa CS, Sá MPA, Lyra JC, Antunes LCO. Inflammatory and oxidative stress airway markers in premature newborns of hypertensive mothers. ACTA ACUST UNITED AC 2016; 49:e5160. [PMID: 27533763 PMCID: PMC4988474 DOI: 10.1590/1414-431x20165160] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2015] [Accepted: 03/28/2016] [Indexed: 11/21/2022]
Abstract
Although oxidative stress and inflammation are important mechanisms in the pathophysiology of preeclampsia and preterm diseases, their contribution to the respiratory prognosis of premature infants of hypertensive mothers is not known. Our objective was to determine the levels of oxidative stress and inflammation markers in the airways of premature infants born to hypertensive and normotensive mothers, in the first 72 h of life, and to investigate whether they are predictors of bronchopulmonary dysplasia (BPD)/death. This was a prospective study with premature infants less than 34 weeks' gestation on respiratory support who were stratified into 2 groups: 32 premature infants of hypertensive mothers and 41 of normotensive women, with a mean gestational age of 29 weeks. Exclusion criteria were as follows: diabetes mellitus, chorioamnionitis, malformation, congenital infection, and death within 24 h after birth. The outcome of interest was BPD/death. Malondialdehyde (MDA), nitric oxide (NO), and interleukin 8 (IL-8) were measured in airway aspirates from the first and third days of life and did not differ between the groups. Univariate and multivariate statistical analyses were performed. The concentrations of MDA, NO, and IL-8 were not predictors of BPD/death. Premature infants who developed BPD/death had higher levels of IL-8 in the first days of life. The gestational age, mechanical ventilation, and a small size for gestational age were risk factors for BPD/death. In conclusion, the biomarkers evaluated were not increased in premature infants of hypertensive mothers and were not predictors of BPD/death.
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Affiliation(s)
- R J Madoglio
- Curso de Pós-Graduação de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - L M S S Rugolo
- Departamento de Pediatria, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - C S Kurokawa
- Departamento de Pediatria, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - M P A Sá
- Curso de Pós-Graduação de Ginecologia e Obstetrícia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - J C Lyra
- Departamento de Pediatria, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
| | - L C O Antunes
- Divisão de Fisioterapia, Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu, SP, Brasil
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32
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D'souza JMP, Harish S, Pai VR, Shriyan C. Increased Oxidatively Modified Forms of Albumin in Association with Decreased Total Antioxidant Activity in Different Types of Hypertensive Disorders of Pregnancy. Indian J Clin Biochem 2016; 32:200-206. [PMID: 28428695 DOI: 10.1007/s12291-016-0584-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2016] [Accepted: 05/24/2016] [Indexed: 01/11/2023]
Abstract
Protein oxidation has been demonstrated in preeclampsia, but this finding has not been established in other hypertensive disorders in pregnancy (HDP). The present study comparatively evaluated ischemia modified albumin (IMA) and advanced oxidation protein products (AOPP) in different HDP and investigated their association with total antioxidant activity (AOA) and total thiols. There was a significant increase in AOPP and IMA, a significant decrease in AOA, total thiols and albumin in every HDP compared to controls. Among HDP groups, eclampsia patients showed more significant change in each of the parameter. IMA and AOPP were negatively associated with AOA in every HDP and with total thiols only in eclampsia. The present study supports the hypothesis of oxidative stress, as evidenced by increased protein oxidation, decreased antioxidant status and significant negative association between protein oxidation and AOA in every HDP. The imbalance of prooxidants and antioxidants was further augmented in eclampsia.
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Affiliation(s)
- Jyothi M P D'souza
- Department of Biochemistry, Yenepoya Medical College, Yenepoya University, Deralakatte, Mangalore, Karnataka 575018 India
| | - Sindhu Harish
- Department of Biochemistry, Yenepoya Medical College, Yenepoya University, Deralakatte, Mangalore, Karnataka 575018 India
| | - Vinitha Ramanath Pai
- Department of Biochemistry, Yenepoya Medical College, Yenepoya University, Deralakatte, Mangalore, Karnataka 575018 India
| | - Chitra Shriyan
- Chirashree Maternity Hospital, Surathkal, Mangalore, Karnataka India
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Ponniah M, Billett EE, De Girolamo LA. Bisphenol A increases BeWo trophoblast survival in stress-induced paradigms through regulation of oxidative stress and apoptosis. Chem Res Toxicol 2015; 28:1693-703. [PMID: 26247420 DOI: 10.1021/acs.chemrestox.5b00093] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Bisphenol A (BPA) is ubiquitous in the environment and is reported to be present at high concentrations in placental tissue, where its presence raises concerns over its potential to disrupt placental function. This report investigates how BPA interferes with the survival of human choriocarcinoma BeWo cells (a model of placental trophoblasts) under stress-induced paradigms reminiscent of pathways activated in placental development. These include conditions that promote oxidative stress (glutathione depletion) and apoptosis (serum withdrawal) or mimic hypoxia (HIF-1α accumulation via dimethyloxalylglycine treatment). Treatment of BeWo cells with BPA during stress-induced paradigms led to a consistent and significant increase in cell viability, with a concomitant increase in glutathione levels and a reduction in apoptosis. Assessment of the antioxidant capacity of BPA revealed its ability to quench reactive oxygen species and reduce the levels generated during glutathione and serum depletion. BPA was also able to reduce the activation of the antioxidant response element (ARE) through mediation of its activators, nuclear factor erythroid related factor family members (Nrf's). Indeed, the expression and nuclear translocation of Nrf2 (an important ARE activator) were impaired by BPA, while Nrf1 and Nrf3 expression levels were increased. Furthermore, BPA increased the levels of the anti-apoptotic proteins (Bcl-2 and Hsp70) and decreased HIF-1α levels during stress-induced conditions. Together, these results indicate that BPA inhibits trophoblast cell death under conditions of cellular stress. This could have implications on placental trophoblasts during development.
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Affiliation(s)
- Muralitharan Ponniah
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University , Nottingham NG11 8NS, U.K
| | - E Ellen Billett
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University , Nottingham NG11 8NS, U.K
| | - Luigi A De Girolamo
- Interdisciplinary Biomedical Research Centre, School of Science and Technology, Nottingham Trent University , Nottingham NG11 8NS, U.K
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Johal T, Lees CC, Everett TR, Wilkinson IB. The nitric oxide pathway and possible therapeutic options in pre-eclampsia. Br J Clin Pharmacol 2015; 78:244-57. [PMID: 24313856 DOI: 10.1111/bcp.12301] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Accepted: 11/01/2013] [Indexed: 01/06/2023] Open
Abstract
Pre-eclampsia is a serious multisystem disorder with diverse clinical manifestations. Although not causal, endothelial dysfunction and reduced nitric oxide bioavailability are likely to play an important role in the maternal and fetal pathophysiology of this condition. Lack of treatment modalities that can target the underlying pathophysiological changes and reverse the endothelial dysfunction frequently leads to iatrogenic preterm delivery of the fetus, causing neonatal morbidity and mortality, and the condition itself is associated with short- and longer term maternal morbidity and mortality. Drugs that target various components of the nitric oxide-soluble guanylyl cyclase pathway can help to increase NO bioavailability. The purpose of this review is to outline the current status of clinical research involving these therapeutic modalities in the context of pre-eclampsia, with the focus being on the following: nitric oxide donors, including organic nitrates and S-nitrosothiols; l-arginine, the endogenous precursor of NO; inhibitors of cyclic guanosine 3',5'-monophosphate breakdown, including sildenafil; and other novel inhibitors of NO donor metabolism. The advantages and limitations of each modality are outlined, and scope for development into established therapeutic options for pre-eclampsia is explored.
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Affiliation(s)
- Tamanrit Johal
- Fetal Medicine Department, Rosie Hospital, Addenbrooke's Hospital, Cambridge University Hospitals NHS Foundation Trust, Cambridge, UK
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Regional differences in the placental levels of oxidative stress markers in pre-eclampsia. Int J Gynaecol Obstet 2015; 129:213-8. [DOI: 10.1016/j.ijgo.2015.03.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 12/16/2014] [Accepted: 02/25/2015] [Indexed: 01/19/2023]
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D’souza JMP, Pai VR, Harish S, Shriyan C, D’souza N. IMA and IMAR in serum and saliva of preeclampsia – a preliminary study. Hypertens Pregnancy 2014; 33:440-8. [DOI: 10.3109/10641955.2014.931418] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Silva DMCE, Marreiro DDN, Moita Neto JM, Brito JA, Neta EADS, Matias JP, Sampaio FA, Nogueira NDN. Oxidative stress and immunological alteration in women with preeclampsia. Hypertens Pregnancy 2013; 32:304-11. [DOI: 10.3109/10641955.2013.806540] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Coral-Vázquez RM, Romero Arauz JF, Canizales-Quinteros S, Coronel A, Valencia Villalvazo EY, Hernández Rivera J, Ramírez Regalado B, Rojano Mejía D, Canto P. Analysis of polymorphisms and haplotypes in genes associated with vascular tone, hypertension and oxidative stress in Mexican-Mestizo women with severe preeclampsia. Clin Biochem 2013; 46:627-32. [PMID: 23333443 DOI: 10.1016/j.clinbiochem.2012.12.016] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 12/10/2012] [Accepted: 12/21/2012] [Indexed: 01/20/2023]
Abstract
OBJECTIVE Several studies have reported the association of genes related to vascular tone, hypertension, oxidative stress and preeclampsia. We investigated the possible association among three polymorphisms in eNOS (as well their haplotypes): one of MTHFR, one of GSTP1 and one of AGT, with severe preeclampsia in Mexican-Mestizo women. METHODS Two hundred thirty women with severe preeclampsia and 350 control subjects were genotyped; for rs2070744 and rs1799983 of eNOS, rs1801133 of MTHFR, rs1695 of GSTP1 and rs699 of AGT we used real-time PCR allelic discrimination and for VNTR of eNOS, PCR. Allele frequency differences were assessed by χ(2). Logistic regression was used to test for associations and for haplotype frequencies using Haploview 4.2. RESULTS Genotypic and allelic distribution of the polymorphisms was similar between cases and controls; likewise, haplotype frequencies of the three polymorphisms of eNOS did not differ significantly. CONCLUSIONS To our knowledge, this is the first time that these polymorphisms have been analyzed together and exclusively in women with severe preeclampsia. However, we did not find an association between polymorphisms of eNOS, MTHFR, GSTP1 and AGT with severe preeclampsia in our population. Additionally, we observed differences in the distribution of the alleles and genotypes of these polymorphisms in our population in comparison to those described in other ethnic groups.
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Trace elements and antioxidant enzymes associated with oxidative stress in the pre-eclamptic/eclamptic mothers during fetal circulation. Clin Nutr 2012; 31:946-50. [DOI: 10.1016/j.clnu.2012.04.005] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2011] [Revised: 03/26/2012] [Accepted: 04/10/2012] [Indexed: 12/22/2022]
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Lapaire O, Grill S, Lalevee S, Kolla V, Hösli I, Hahn S. Microarray screening for novel preeclampsia biomarker candidates. Fetal Diagn Ther 2012; 31:147-53. [PMID: 22472943 DOI: 10.1159/000337325] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2011] [Accepted: 02/06/2012] [Indexed: 11/19/2022]
Abstract
INTRODUCTION Our aim was to identify novel biomarker candidates for the near-term prediction of preeclampsia in a homogenous collective. In this study, we screened at the genome-wide level for gene expression in placental villous tissue from patients with severe preeclampsia in comparison to normal healthy pregnancies. MATERIAL AND METHODS Total RNA was extracted from placental villous tissue from 9 preeclamptic patients and 7 normotensive controls after scheduled cesarean sections. After sample pooling, gene expression analysis was performed using six Affymetrix Human Gene 1.0 ST arrays, followed by quantitative RT-PCR and validation of selected markers in the serum of patients at the protein level. RESULTS In total, 896 significantly differentially expressed genes were identified (p ≤ 0.05). After restricting these to molecules present in the circulation, 9 upregulated and 5 downregulated genes were selected. Four of them (β-hCG, HTRA4, LHB1, all upregulated; and NOX4, downregulated) were validated by quantitative real-time RT-PCR. Finally, the maternal plasma protein levels of 2 of these genes (LHB and β-hCG) were confirmed to be significantly different between preeclampsia cases and controls. DISCUSSION We identified 14 potential new biomarker candidates for preeclampsia and validated 4 of them by quantitative RT-PCR and 2 of them with subsequent serum protein analyses. Further studies will assess the optimal marker combination for the imminent prediction of impending preeclampsia.
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Affiliation(s)
- Olav Lapaire
- Department of Obstetrics and Gynecology, University Hospital Basel, Basel, Switzerland.
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Mihu D, Sabău L, Costin N, Ciortea R, Măluţan A, Mihu CM. Implications of maternal systemic oxidative stress in normal pregnancy and in pregnancy complicated by preeclampsia. J Matern Fetal Neonatal Med 2011; 25:944-51. [DOI: 10.3109/14767058.2011.600796] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Li W, Yao Y, Wang J. How to confirm reactive oxygen species-induced pre-eclampsia. J Obstet Gynaecol Res 2011; 37:671. [PMID: 21535314 DOI: 10.1111/j.1447-0756.2011.01612.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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