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Radojičić O, Pažitná L, Dobrijević Z, Kundalia P, Kianičková K, Katrlík J, Marković VM, Miković Ž, Nedić O, Robajac D. Serum Glycome as a Diagnostic and Prognostic Factor in Gestational Diabetes Mellitus. Biochemistry (Mosc) 2024; 89:148-158. [PMID: 38467551 DOI: 10.1134/s0006297924010097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2023] [Revised: 11/23/2023] [Accepted: 11/29/2023] [Indexed: 03/13/2024]
Abstract
Gestational diabetes mellitus (GDM) is a risk factor for both mother and fetus/neonate during and after the pregnancy. Inconsistent protocols and cumbersome screening procedures warrant the search for new and easily accessible biomarkers. We investigated a potential of serum N-glycome to differentiate between healthy pregnant women (n = 49) and women with GDM (n = 53) using a lectin-based microarray and studied the correlation between the obtained data and parameters of glucose and lipid metabolism. Four out of 15 lectins used were able to detect the differences between the control and GDM groups in fucosylation, terminal galactose/N-acetylglucosamine (Gal/GlcNAc), presence of Galα1,4Galβ1,4Glc (Gb3 antigen), and terminal α2,3-sialylation with AUC values above 60%. An increase in the Gb3 antigen and α2,3-sialylation correlated positively with GDM, whereas the amount of fucosylated glycans correlated negatively with the content of terminal Gal/GlcNAc. The content of GlcNAc oligomers correlated with the highest number of blood analytes, indices, and demographic characteristics, but failed to discriminate between the groups. The presence of terminal Gal residues correlated positively with the glucose levels and negatively with the LDL levels in the non-GDM group only. The results suggest fucosylation, terminal galactosylation, and the presence of Gb3 antigen as prediction markers of GDM.
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Affiliation(s)
- Ognjen Radojičić
- Department of High-Risk Pregnancies, University Clinic for Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia.
| | - Lucia Pažitná
- Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia.
| | - Zorana Dobrijević
- Department for Metabolism, Institute for the Application of Nuclear Energy, University of Belgrade, Belgrade, Serbia.
| | - Paras Kundalia
- Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia.
| | | | - Jaroslav Katrlík
- Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia.
| | - Vesna Mandić Marković
- Department of High-Risk Pregnancies, University Clinic for Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia.
- Medical School, University of Belgrade, Belgrade, Serbia
| | - Željko Miković
- Department of High-Risk Pregnancies, University Clinic for Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia.
- Medical School, University of Belgrade, Belgrade, Serbia
| | - Olgica Nedić
- Department for Metabolism, Institute for the Application of Nuclear Energy, University of Belgrade, Belgrade, Serbia.
| | - Dragana Robajac
- Department for Metabolism, Institute for the Application of Nuclear Energy, University of Belgrade, Belgrade, Serbia.
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Antonić T, Ardalić D, Vladimirov S, Zeljković A, Vekić J, Mitrović M, Ivanišević J, Gojković T, Munjas J, Spasojević-Kalimanovska V, Miković Ž, Stefanović A. Cholesterol Metabolic Profiling of HDL in Women with Late-Onset Preeclampsia. Int J Mol Sci 2023; 24:11357. [PMID: 37511116 PMCID: PMC10380085 DOI: 10.3390/ijms241411357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 07/07/2023] [Accepted: 07/09/2023] [Indexed: 07/30/2023] Open
Abstract
A specific feature of dyslipidemia in pregnancy is increased high-density lipoprotein (HDL) cholesterol concentration, which is probably associated with maternal endothelium protection. However, preeclampsia is most often associated with low HDL cholesterol, and the mechanisms behind this change are scarcely explored. We aimed to investigate changes in HDL metabolism in risky pregnancies and those complicated by late-onset preeclampsia. We analyze cholesterol synthesis (cholesterol precursors: desmosterol, 7-dehydrocholesterol, and lathosterol) and absorption markers (phytosterols: campesterol and β-sitosterol) within HDL particles (NCSHDL), the activities of principal modulators of HDL cholesterol's content, and major HDL functional proteins levels in mid and late pregnancy. On the basis of the pregnancy outcome, participants were classified into the risk group (RG) (70 women) and the preeclampsia group (PG) (20 women). HDL cholesterol was lower in PG in the second trimester compared to RG (p < 0.05) and followed by lower levels of cholesterol absorption markers (p < 0.001 for campesterolHDL and p < 0.05 for β-sitosterolHDL). Lowering of HDL cholesterol between trimesters in RG (p < 0.05) was accompanied by a decrease in HDL phytosterol content (p < 0.001), apolipoprotein A-I (apoA-I) concentration (p < 0.05), and paraoxonase 1 (PON1) (p < 0.001), lecithin-cholesterol acyltransferase (LCAT) (p < 0.05), and cholesterol ester transfer protein (CETP) activities (p < 0.05). These longitudinal changes were absent in PG. Development of late-onset preeclampsia is preceded by the appearance of lower HDL cholesterol and NCSHDL in the second trimester. We propose that reduced capacity for intestinal HDL synthesis, decreased LCAT activity, and impaired capacity for HDL-mediated cholesterol efflux could be the contributing mechanisms resulting in lower HDL cholesterol.
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Affiliation(s)
- Tamara Antonić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Daniela Ardalić
- The Obstetrics and Gynecology Clinic Narodni Front "Narodni Front", Kraljice Natalije 62, 11000 Belgrade, Serbia
| | - Sandra Vladimirov
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Aleksandra Zeljković
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Jelena Vekić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Marija Mitrović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Jasmina Ivanišević
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Tamara Gojković
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Jelena Munjas
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Vesna Spasojević-Kalimanovska
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
| | - Željko Miković
- The Obstetrics and Gynecology Clinic Narodni Front "Narodni Front", Kraljice Natalije 62, 11000 Belgrade, Serbia
| | - Aleksandra Stefanović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, 11000 Belgrade, Serbia
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Jagodić J, Pavlović S, Borković-Mitić S, Perović M, Miković Ž, Đurđić S, Manojlović D, Stojsavljević A. Examination of Trace Metals and Their Potential Transplacental Transfer in Pregnancy. Int J Mol Sci 2022; 23:ijms23158078. [PMID: 35897677 PMCID: PMC9330144 DOI: 10.3390/ijms23158078] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2022] [Revised: 07/16/2022] [Accepted: 07/20/2022] [Indexed: 12/02/2022] Open
Abstract
With the ever-growing concern for human health and wellbeing, the prenatal period of development requires special attention since fetuses can be exposed to various metals through the mother. Therefore, this study explored the status of selected toxic (Pb, Cd, Ni, As, Pt, Ce, Rb, Sr, U) and essential trace metals (Mn, Co, Cu, Zn, Se) in the umbilical cord (UC) sera, maternal sera, and placental tissue samples of 92 healthy women with normal pregnancies. A further aim focuses on the potential transplacental transfer of these trace metals. Based on the obtained levels of investigated elements in clinical samples, it was observed that all of the trace metals cross the placental barrier and reach the fetus. Furthermore, statistical analysis revealed significant differences in levels of toxic Ni, As, Cd, U, Sr, Rb, and essential Mn, Cu, and Zn between all three types of analyzed clinical samples. Correlation analysis highlighted As to be an element with levels that differed significantly between all tested samples. Principal component analysis (PCA) was used to enhance these findings. PCA demonstrated that Cd, Mn, Zn, Rb, Ce, U, and Sr were the most influential trace metals in distinguishing placenta from maternal and UC serum samples. As, Co, and Cu were responsible for the clustering of maternal serum samples, and PCA demonstrated that the Pt level in UC sera was responsible for the clustering of these samples. Overall, the findings of this study could contribute to a better understanding of transplacental transfer of these trace metals, and shed a light on overall levels of metal exposure in the population of healthy pregnant women and their fetuses.
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Affiliation(s)
- Jovana Jagodić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia; (J.J.); (S.Đ.); (D.M.)
| | - Slađan Pavlović
- Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (S.P.); (S.B.-M.)
| | - Slavica Borković-Mitić
- Institute for Biological Research “Siniša Stanković”—National Institute of the Republic of Serbia, University of Belgrade, Bulevar Despota Stefana 142, 11060 Belgrade, Serbia; (S.P.); (S.B.-M.)
| | - Milan Perović
- Clinic for Gynecology and Obstetrics Narodni Front, Faculty of Medicine University of Belgrade, Kraljice Natalije 62, 11000 Belgrade, Serbia; (M.P.); (Ž.M.)
| | - Željko Miković
- Clinic for Gynecology and Obstetrics Narodni Front, Faculty of Medicine University of Belgrade, Kraljice Natalije 62, 11000 Belgrade, Serbia; (M.P.); (Ž.M.)
| | - Slađana Đurđić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia; (J.J.); (S.Đ.); (D.M.)
| | - Dragan Manojlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia; (J.J.); (S.Đ.); (D.M.)
| | - Aleksandar Stojsavljević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia; (J.J.); (S.Đ.); (D.M.)
- Innovative Centre of the Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000 Belgrade, Serbia
- Correspondence:
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Stojsavljević A, Perović M, Nešić A, Miković Ž, Manojlović D. Levels of non-essential trace metals and their impact on placental health: a review. Environ Sci Pollut Res Int 2022; 29:43662-43674. [PMID: 35426027 DOI: 10.1007/s11356-022-20205-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Accepted: 04/08/2022] [Indexed: 06/14/2023]
Abstract
According to recent research, even low levels of environmental chemicals, particularly heavy metals, can considerably disrupt placental homeostasis. This review aims to explore the profile of non-essential trace metals in placental tissues across the globe and to specify trace metal(s) that can be candidates for impaired placental health. Accordingly, we conducted an extensive survey on relevant databases of peer-reviewed papers published in the last two decades. Among a considerable number of non-essential trace metals, arsenic (As), lead (Pb), cadmium (Cd), and mercury (Hg) were identified as the most detrimental to placental health. Comparative analysis showed remarkable differences in placental levels of these trace metals worldwide. Based on current data reported across the globe, a median (min-max) range from 0.55 to 15 ng/g for placental As levels could be deemed safe. The placental Cd and Pb levels were markedly higher in smokers than in non-smokers. Occupationally exposed pregnant women had several orders of magnitude higher Cd, Pb, and Hg levels in placental tissues than non-occupationally exposed women. Also, we concluded that even low-level exposure to As, Cd, Pb, and Hg could be deleterious to proper fetal development. This review implies the need to reduce exposure to non-essential trace metals to preserve placental health and prevent numerous poor pregnancy outcomes. Overall, the information presented is expected to help plan future fundamental and applied investigations on the placental toxicity of As, Cd, Pb, and Hg.
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Affiliation(s)
- Aleksandar Stojsavljević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia.
- Innovation Center of the Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia.
| | - Milan Perović
- Clinic for Gynecology and Obstetrics Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, Belgrade, Serbia
| | - Andrijana Nešić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
| | - Željko Miković
- Clinic for Gynecology and Obstetrics Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, Belgrade, Serbia
| | - Dragan Manojlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11000, Belgrade, Serbia
- South Ural State University, Lenin prospect 76, Chelyabinsk, Russia
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Radojičić O, Dobrijević Z, Robajac D, Gligorijević N, Mandić Marković V, Miković Ž, Nedić O. Gestational Diabetes is Associated with an Increased Expression of miR-27a in Peripheral Blood Mononuclear Cells. Mol Diagn Ther 2022; 26:421-435. [PMID: 35578107 DOI: 10.1007/s40291-022-00591-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/10/2022] [Indexed: 11/25/2022]
Abstract
BACKGROUND Dysregulation of microRNA-based mechanisms is associated with various human pathologies, including gestational diabetes mellitus (GDM), suggesting they may be potential diagnostic and/or prognostic biomarkers of GDM. METHODS The expression of miR-340-5p, miR-27a-3p and miR-222-3p in peripheral blood mononuclear cells (PBMCs) obtained from patients with GDM (n = 42) and healthy controls (n = 34) were evaluated, together with their correlation to the clinical parameters of participants and their newborns. Expression of the selected microRNAs was quantified by quantitative real-time polymerase chain reaction (qPCR), after reverse transcription with microRNA-specific stem-loop primers. RESULTS The expression of miR-27a-3p was significantly higher in patients with GDM than in controls (p = 0.036), whereas no significant difference between groups was found for the other two tested microRNAs. The expression level of miR-27a-3p in GDM patients was found to negatively correlate with the number of erythrocytes, concentration of haemoglobin, haematocrit, and low- and high-density lipoprotein (LDL/HDL) ratio, and positively with the concentration of glycated haemoglobin (HbA1c). In the case of miR-222-3p, a negative correlation between its expression and the concentration of cholesterol, LDL and LDL/HDL ratio was found only in healthy pregnant women. The expression level of miR-340-5p negatively correlated with erythrocyte count, haemoglobin concentration and haematocrit in GDM patients, as well as with the concentration of cholesterol, LDL and LDL/HDL ratio in healthy women. CONCLUSIONS The results obtained illustrate the potential of PBMC-derived microRNA miR-27a-3p to serve as a diagnostic biomarker of GDM. On the other hand, MiR-27a and miR-340 may help in assessing the metabolic status relevant for pregnancy.
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Affiliation(s)
- Ognjen Radojičić
- University Clinic for Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Zorana Dobrijević
- Department for Metabolism, Institute for the Application of Nuclear Energy (INEP), University of Belgrade, Belgrade, Serbia.
| | - Dragana Robajac
- Department for Metabolism, Institute for the Application of Nuclear Energy (INEP), University of Belgrade, Belgrade, Serbia
| | - Nikola Gligorijević
- Department for Metabolism, Institute for the Application of Nuclear Energy (INEP), University of Belgrade, Belgrade, Serbia
| | - Vesna Mandić Marković
- University Clinic for Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
- Medical School, University of Belgrade, Belgrade, Serbia
| | - Željko Miković
- University Clinic for Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
- Medical School, University of Belgrade, Belgrade, Serbia
| | - Olgica Nedić
- Department for Metabolism, Institute for the Application of Nuclear Energy (INEP), University of Belgrade, Belgrade, Serbia
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Stojsavljević A, Rovčanin M, Miković Ž, Perović M, Jeremić A, Zečević N, Manojlović D. Analysis of essential, toxic, rare earth, and noble elements in maternal and umbilical cord blood. Environ Sci Pollut Res Int 2022; 29:37375-37383. [PMID: 35060029 DOI: 10.1007/s11356-021-18190-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 12/14/2021] [Indexed: 06/14/2023]
Abstract
Progressive industrialization in recent decades has contributed to the increase of metal levels in the environment, which has a dangerous impact on human health, primarily pregnant women. In this study, we aimed to compare levels of various elements in maternal and umbilical cord (UC) plasma samples collected from 125 healthy pregnant women, conduct correlation analysis among paired plasma samples, and compare our data with other populations worldwide. The study design included the following elements: essential (Mn, Co, Cu, Zn, Se, Mo), non-essential (Be, Al, Ni, As, Rb, Sr, Cd, Sb, Pb, U), rare earth (La, Pr, Ce, Nd, Sm, Eu, Gd, Dy, Ho, Er), and noble metals (Ru, Rh, Re, Pt). Levels of 30 elements were higher in maternal plasma than in UC plasma samples. However, no disparities at the statistically significant level were found for Be, Zn, Rb, Cd, Ce, and Ho. Correlation analysis among paired plasma samples revealed only positive/synergistic correlations of different strengths between most elements. Compared to other countries across the globe, our participants had considerably lower plasma levels of Zn and higher levels of Co, Ni, and As. This study provides not only a new and deeper comprehension, but also the first insight into the levels, correlation, distribution, and potential transplacental transfer of 30 elements.
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Affiliation(s)
- Aleksandar Stojsavljević
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia.
- Innovation Center of the Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia.
| | - Marija Rovčanin
- Clinic for Gynecology and Obstetrics Narodni front, Kraljice Natalije 62, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, Belgrade, Serbia
| | - Željko Miković
- Clinic for Gynecology and Obstetrics Narodni front, Kraljice Natalije 62, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, Belgrade, Serbia
| | - Milan Perović
- Clinic for Gynecology and Obstetrics Narodni front, Kraljice Natalije 62, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, Belgrade, Serbia
| | - Ana Jeremić
- Clinic for Gynecology and Obstetrics Narodni front, Kraljice Natalije 62, Belgrade, Serbia
| | - Nebojša Zečević
- Clinic for Gynecology and Obstetrics Narodni front, Kraljice Natalije 62, Belgrade, Serbia
- Faculty of Medicine, University of Belgrade, dr Subotića starijeg 8, Belgrade, Serbia
| | - Dragan Manojlović
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, Belgrade, Serbia
- South Ural State University, Chelyabinsk, Lenin prospect 76, Russia
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Ivanišević J, Ardalić D, Banjac G, Janać J, Cabunac P, Vekić J, Zeljković A, Spasojević-Kalimanovska V, Karadžov Orlić N, Mandić Marković V, Miković Ž, Stefanović A. Antioxidant status in hypertensive disorders of pregnancy. Hypertens Pregnancy 2021; 41:31-38. [PMID: 34903142 DOI: 10.1080/10641955.2021.2013875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Objective: Pregnancy can be associated with maternal hypertension leading to possible complications in pregnancy outcome. Antioxidant status may be proned to changes during pregnancy with hypertension. The aim of our study was to estimate antioxidant status through high-risk pregnancies.Methods: Seventy-nine pregnant women with high-risk for preeclampsia development were included and 46 of them developed some hypertensive disorder in pregnancy. Superoxide-dismutase (SOD) and paraoxonase 1 (PON1) activities and relative proportion of PON1 activiity on different HDL subclasses were determined in 1st, 2nd, and 3rd trimester and prior to delivery.Results: SOD activity was significantly lower in 2nd and 3rd trimesters when compared to 1st trimester (P˂0.001) whereas PON1 activity was significantly higher in 3rd than in 1st trimester (P˂0.05) in group of hypertensive women. This group had significantly higher SOD and PON1 activities and relative proportion of PON1 on HDL3c subclasses in the 1st trimester, significantly increased PON1 in the 3rd trimester and prior to delivery and significantly higher PON1 activity on HDL3c subclasses (P˂0.05) than nonhypertensive group. In 1st trimester and prior to delivery, total PON1 activity and relative proportion of PON1 on HDL3c subclasses exhibited significant ability to mark out hypertension in pregnancy (P˂0.05).Conclusions: SOD activity decreased whereas total PON1 activity increased during pregnancy with hypertension. Pregnant women with hypertension had higher activities of PON1 and SOD and relative proportion of PON1 on HDL3c subclasses than nonhypertensive ones. PON1 activity and relative proportion of PON1 on HDL3c subclasses exhibited significant association with hypertension in pregnancy.
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Affiliation(s)
- Jasmina Ivanišević
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Daniela Ardalić
- Obstetrics and Gynaecology Clinic "Narodni Front", Belgrade, Serbia
| | - Gorica Banjac
- Obstetrics and Gynaecology Clinic "Narodni Front", Belgrade, Serbia
| | - Jelena Janać
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Petar Cabunac
- Obstetrics and Gynaecology Clinic "Narodni Front", Belgrade, Serbia
| | - Jelena Vekić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | - Aleksandra Zeljković
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | | | | | - Željko Miković
- Obstetrics and Gynaecology Clinic "Narodni Front", Belgrade, Serbia
| | - Aleksandra Stefanović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
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Stojsavljević A, Rovčanin M, Rovčanin B, Miković Ž, Jeremić A, Perović M, Manojlović D. Human biomonitoring of essential, nonessential, rare earth, and noble elements in placental tissues. Chemosphere 2021; 285:131518. [PMID: 34273696 DOI: 10.1016/j.chemosphere.2021.131518] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2021] [Revised: 06/17/2021] [Accepted: 07/08/2021] [Indexed: 06/13/2023]
Abstract
Exposure to certain metals has been recognized as a risk factor for numerous complications in vulnerable population groups, particularly pregnant women. This investigation evaluated the levels of essential (Cr, Mn, Co, Cu, Zn, Se, Mo) and nonessential trace metals with recognized toxicity (Be, Al, Ti, V, Ni, Ga, As, Rb, Sr, Cd, Sb, Ba, Tl, Hg, Pb, Bi, Th, U), together with rare earth elements (Sc, Y, La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Yb, Lu), and noble metals (Ru, Rh, Pd, Re, Os, Ir, Pt, Au, Ag) in the placental tissues of healthy pregnant women (n = 105). The selection of participants was undertaken with special reference to specific confounding factors that could influence the trace element profiles. Among trace elements, Zn was the most abundant and Lu was the least abundant. Cd and Os placental levels show a tendency to increase with women's age. Compared with literature data, high levels of Ni were found. This is the first study that provides the composition levels of essential and toxic trace elements, rare earth elements, and noble metals in human placental tissues. Also, for the first time, normal (reference) ranges for 50 (ultra)trace elements in placental tissues are proposed. Reference ranges are especially important in biomonitoring studies, which nowadays give increasing importance to the analysis of solid tissues instead of body fluids. Overall, the information provided in this study can serve as a starting point for further clinical trials and/or prediction of potential risks to pregnancy.
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Affiliation(s)
- Aleksandar Stojsavljević
- University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, Belgrade, Serbia; Innovation Center of the Faculty of Chemistry, University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, Belgrade, Serbia.
| | - Marija Rovčanin
- Clinic for Gynecology and Obstetrics "Narodni front", Kraljice Natalije 62, Belgrade, Serbia
| | - Branislav Rovčanin
- University of Belgrade, Faculty of Medicine, dr Subotića starijeg 8, Belgrade, Serbia; University Clinical Center of Serbia, Center for Endocrine Surgery, Koste Todorovića 8, Belgrade, Serbia
| | - Željko Miković
- Clinic for Gynecology and Obstetrics "Narodni front", Kraljice Natalije 62, Belgrade, Serbia; University of Belgrade, Faculty of Medicine, dr Subotića starijeg 8, Belgrade, Serbia
| | - Ana Jeremić
- Clinic for Gynecology and Obstetrics "Narodni front", Kraljice Natalije 62, Belgrade, Serbia
| | - Milan Perović
- Clinic for Gynecology and Obstetrics "Narodni front", Kraljice Natalije 62, Belgrade, Serbia; University of Belgrade, Faculty of Medicine, dr Subotića starijeg 8, Belgrade, Serbia
| | - Dragan Manojlović
- University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, Belgrade, Serbia; South Ural State University, Chelyabinsk, Lenin prospect 76, Russia
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Cabunac P, Karadžov Orlić N, Ardalić D, Damnjanović Pažin B, Stanimirović S, Banjac G, Stefanović A, Spasojević-Kalimanovska V, Egić A, Rajović N, Milić N, Miković Ž. Use of FMF algorithm for prediction of preeclampsia in high risk pregnancies: a single center longitudinal study. Hypertens Pregnancy 2021; 40:171-179. [PMID: 33979553 DOI: 10.1080/10641955.2021.1921791] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
OBJECTIVE: This study aimed to assess the accuracy of The Fetal Medicine Foundation (FMF) screening algorithm for the prediction of preeclampsia.METHODS: Out of 138 women with high-risk pregnancies prospectively followed, 30 developed preeclampsia. The clinical examination and biochemical measurements were performed at first, second, early and late third trimester.RESULTS: A lower PAPP-A levels were found in the first trimester, while sFlt/PlGF was increased in the second and early third trimester in preeclampsia (p>0.05). FMF algorithm presented higher specificity (>70%), but had a drawback of lower sensitivity (35-77%).CONCLUSION: FMF algorithm had modest performance in the prediction of preeclampsia for high-risk pregnancies.
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Affiliation(s)
- Petar Cabunac
- Department of High-Risk Pregnancy, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Nataša Karadžov Orlić
- Department of High-Risk Pregnancy, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Daniela Ardalić
- Department of Medical Biochemistry, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Barbara Damnjanović Pažin
- Department of High-Risk Pregnancy, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Srđan Stanimirović
- Department of High-Risk Pregnancy, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Gorica Banjac
- Department of Medical Biochemistry, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Aleksandra Stefanović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Belgrade, Serbia
| | | | - Amira Egić
- Department of High-Risk Pregnancy, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Nina Rajović
- Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Department of Medical Biochemistry, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia
| | - Nataša Milić
- Institute for Medical Statistics and Informatics, Faculty of Medicine, University of Belgrade, Belgrade, Serbia.,Division of Nephrology and Hypertension, Mayo Clinic, Rochester, USA
| | - Željko Miković
- Department of High-Risk Pregnancy, Clinic of Gynecology and Obstetrics "Narodni Front", Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
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10
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Bogdanović Pristov J, Opačić M, Bajčetić M, Mandić V, Maglić D, Miković Ž, Spasojević I. Oxidative status of maternal blood in pregnancies burdened by inherited thrombophilias. PLoS One 2020; 15:e0234253. [PMID: 32555583 PMCID: PMC7299371 DOI: 10.1371/journal.pone.0234253] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2019] [Accepted: 05/21/2020] [Indexed: 11/18/2022] Open
Abstract
Oxidative status of maternal blood represents an important parameter of pregnancy that is involved in both, regulation of physiological processes and (if significantly altered) development of different pregnancy complications. Inherited thrombophilias represent genetic disorders that increase the risk of thromboembolism in pregnancy. Little is known about the impact of thrombophilia on the oxidative status of maternal blood. In this study, we analyzed oxidative status of blood of 56 women with pregnancies burdened by inherited thrombophilias. The status was established at three different trimesters using biochemical assays and electrochemical measurements, and it was compared to 10 age- and trimester-matching controls. Activities of superoxide dismutase, catalase, and glutathione reductase in the 1st and the 2nd trimester of thrombophilic pregnancy were lower than controls. Also, there was less oxidation in the plasma, according to higher concentration of reduced thiols and lower oxidation-reduction potential. Therefore, it appears that thrombophilic mothers do not experience oxidative stress in the circulation in the first two trimesters. However, the rise in GPx, GR and SOD activities in the 3rd trimester of thrombophilic pregnancy implies that the risk of oxidative stress is increased during the late pregnancy. These results are important for developing antioxidative treatment that could tackle thrombophilia-related pregnancy complications.
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Affiliation(s)
- Jelena Bogdanović Pristov
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Miloš Opačić
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
| | - Milica Bajčetić
- Department of Pharmacology, Clinical Pharmacology and Toxicology, School of Medicine, University of Belgrade, Belgrade, Serbia.,Clinical Pharmacology Unit, University Children's Hospital, Belgrade, Serbia
| | - Vesna Mandić
- Department for High-risk Pregnancies, University Clinic for Gynecology and Obstetrics "Narodni front", Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Dragana Maglić
- Department for High-risk Pregnancies, University Clinic for Gynecology and Obstetrics "Narodni front", Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Željko Miković
- Department for High-risk Pregnancies, University Clinic for Gynecology and Obstetrics "Narodni front", Belgrade, Serbia.,Faculty of Medicine, University of Belgrade, Belgrade, Serbia
| | - Ivan Spasojević
- Life Sciences Department, Institute for Multidisciplinary Research, University of Belgrade, Belgrade, Serbia
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11
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Ardalić D, Stefanović A, Banjac G, Cabunac P, Miljković M, Mandić-Marković V, Stanimirović S, Damnjanović Pažin B, Spasić S, Spasojević-Kalimanovska V, Karadžov-Orlić N, Miković Ž. Lipid profile and lipid oxidative modification parameters in the first trimester of high- risk pregnancies - possibilities for preeclampsia prediction. Clin Biochem 2020; 81:34-40. [PMID: 32407717 DOI: 10.1016/j.clinbiochem.2020.05.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/05/2020] [Accepted: 05/07/2020] [Indexed: 11/25/2022]
Abstract
OBJECTIVES The goal of this study was to investigate metabolic changes in lipids and oxidative stress parameters in the first trimester of pregnancy with the more specific aim of estimating the significance and strength of researched parameters in the prediction of preeclampsia. DESIGN AND METHODS The study included 87 high-risk pregnant (HRG) female subjects, 14 with developed preeclampsia (PEC) and 43 healthy pregnant female subjects matched for gestational age (CG). Thiobarbituric acid-reactive substances (TBARS) concentration, lipid hydroperoxides (LOOH), pro-oxidant antioxidant balance (PAB) and total oxidative status (TOS) were measured as oxidative stress markers, while total antioxidant capacity (TAC) was measured as an antioxidative defense parameter. The Atherogenic Index of Plasma (AIP) was calculated as the base 10 logarithm of the ratio of the plasma concentration of triglycerides (TG) to the plasma concentration of high-density lipoprotein cholesterol (HDL-C), with each concentration expressed in mmol/L. RESULTS The results have shown that lipid indices, especially AIP, were significantly higher in the first trimester of HRG (p < 0.001) and PEC (p < 0.001). Oxidative stress parameters were significantlly higher, while TAC was significantly lower in HRG vs. CG [0.7 ± 0.15 vs 1.1 ± 0.16; (p < 0.001)] and in PEC [0.6 ± 0.12 vs 1.1 ± 0.16; (p < 0.001)] vs. CG. Also, in the HRG, results have shown an independent association of AIP with the preeclampsia development (p < 0.05), while placental growth factor did not show the expected level of significance (p = 0.648). Analysis of the Receiver Operating Characteristics (ROC) curves indicated that certain parameters included in the research model have very good diagnostic accuracy for preeclampsia (AUC = 0.856). CONCLUSIONS AIP is associated with high-risk pregnancies. Furthermore, our results firmly underscored AIP as a potential marker for preeclampsia prediction.
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Affiliation(s)
- D Ardalić
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - A Stefanović
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, Serbia.
| | - G Banjac
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - P Cabunac
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - M Miljković
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, Serbia
| | - V Mandić-Marković
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, Serbia
| | - S Stanimirović
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - B Damnjanović Pažin
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - S Spasić
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - V Spasojević-Kalimanovska
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Vojvode Stepe 450, Belgrade, Serbia
| | - N Karadžov-Orlić
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia
| | - Ž Miković
- Gynecology and Obstetrics Clinic Narodni Front, Kraljice Natalije 62, Belgrade, Serbia; Faculty of Medicine, University of Belgrade, Dr Subotica 8, Belgrade, Serbia
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12
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Jelena M, Sopić M, Joksić I, Zmrzljak UP, Karadžov-Orlić N, Košir R, Egić A, Miković Ž, Ninić A, Spasojević-Kalimanovska V. Placenta-specific plasma miR518b is a potential biomarker for preeclampsia. Clin Biochem 2020; 79:28-33. [PMID: 32092293 DOI: 10.1016/j.clinbiochem.2020.02.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2019] [Revised: 02/06/2020] [Accepted: 02/18/2020] [Indexed: 02/07/2023]
Abstract
INTRODUCTION MicroRNAs have a significant role in the pathogenesis of preeclampsia. Circulating microRNAs could represent a potential biomarker for preeclampsia. The aim of this study was to evaluate plasma miR210-3p and miR518b in preeclampsia and healthy pregnancy for the first time by digital droplet PCR (ddPCR). METHODS Thirty-six pregnant women (seventeen healthy pregnancies, nineteen preeclampsia patients) were involved from the Clinic for Gynaecology and Obstetrics "Narodni front" in Belgrade, Serbia. Plasma miR210-3p, miR518b and cel-miR-39 as a spike-in control were measured by ddPCR. RESULTS MiR518b was significantly elevated in preeclampsia compared to a healthy pregnancy (P = 0.034; 0.302(0.217-0.421) vs. 0.171(0.110-0.266)). MiR210-3p showed no significant difference between the two groups (P = 0.951). The adjustment of miR518b was made for a gestational age and smoking status and the difference between the preeclampsia and healthy pregnancy group was more significant (P = 0.026; 0.300(0.216-0.419) vs. 0.172(0.121-0.245)). Plasma miR-518b was significantly higher in the group of preeclampsia patients with proteinuria above the 75th percentile for the group (P = 0.033), in women who smoked (P = 0.039), and was positively related to uric acid in preeclampsia (P = 0.018, r = 0.536). Plasma miR518b was able to significantly discriminate between preeclampsia and healthy pregnancy, yielding AUC of 0.712 (95%CI:0.539-0.891), P = 0.028. CONCLUSIONS In this study plasma microRNA were measured for the first time in preeclampsia and healthy pregnancies with ddPCR. Placenta-specific miR-518b could serve as a potential biomarker for discriminating preeclampsia and healthy pregnancy, which should be confirmed on a larger study population. This study has failed to confirm the same potential for miR210-3p.
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Affiliation(s)
- Munjas Jelena
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Street Vojvode Stepe 450, 11000 Belgrade, Serbia.
| | - Miron Sopić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Street Vojvode Stepe 450, 11000 Belgrade, Serbia.
| | - Ivana Joksić
- Genetic Laboratory Department, Obstetrics and Gynaecology Clinic "Narodni Front", Street Kraljice Natalije 62, 11000 Belgrade, Serbia
| | | | - Nataša Karadžov-Orlić
- High-Risk Pregnancy Department, Obstetrics and Gynaecology Clinic "Narodni Front", Street Kraljice Natalije 62, 11000 Belgrade, Serbia; School of Medicine, University of Belgrade, Street Dr Subotica 8, 11000 Belgrade, Serbia
| | - Rok Košir
- BIA Separations CRO, Labena Ltd., Street Verovškova 64, 1000 Ljubljana, Slovenia.
| | - Amira Egić
- High-Risk Pregnancy Department, Obstetrics and Gynaecology Clinic "Narodni Front", Street Kraljice Natalije 62, 11000 Belgrade, Serbia; School of Medicine, University of Belgrade, Street Dr Subotica 8, 11000 Belgrade, Serbia
| | - Željko Miković
- High-Risk Pregnancy Department, Obstetrics and Gynaecology Clinic "Narodni Front", Street Kraljice Natalije 62, 11000 Belgrade, Serbia; School of Medicine, University of Belgrade, Street Dr Subotica 8, 11000 Belgrade, Serbia
| | - Ana Ninić
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Street Vojvode Stepe 450, 11000 Belgrade, Serbia.
| | - Vesna Spasojević-Kalimanovska
- Department of Medical Biochemistry, Faculty of Pharmacy, University of Belgrade, Street Vojvode Stepe 450, 11000 Belgrade, Serbia.
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13
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Ardalić D, Stefanović A, Kotur-Stevuljević J, Ninić A, Spasić S, Spasojević-Kalimanovska V, Jelić-Ivanović Z, Miković Ž. Lipid indexes and parameters of lipid peroxidation during physiological pregnancy. J LAB MED 2019. [DOI: 10.1515/labmed-2018-0026] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Abstract
Background
Specific metabolic changes during physiological pregnancy are characterized by hyperlipidemia and increased oxidative stress. However, these specific changes raise the question of their pro-atherogenic potential during pregnancy and their influence on the risk of developing cardiovascular disease (CVD) in women later in life, as well as complications during pregnancy. The aim of this study was to investigate the changes in lipid indexes and parameters of lipid peroxidation in non-complicated pregnancy in order to estimate their course of change and potential relationship during non-complicated pregnancy.
Methods
The study included 43 healthy pregnant women and 38 non-pregnant healthy women, in appropriate ages, as the control group. Lipid parameters and oxidative stress parameters were monitored in a longitudinal study in the first, second and third trimesters, and before delivery during non-complicated pregnancy.
Results
Results have shown that lipid indexes rise during pregnancy. The values were significantly increased when compared to the first trimester in all lipid indices and in comparison with the control group. Thyobarbituric acid reactive substances (TBARS) and lipid hydroperoxides (LOOH) were not changed significantly during physiological pregnancy, but LOOH showed a significantly higher value in the first trimester compared with the control group. Prooxidative-antioxidative balance (PAB) significantly increases as pregnancy progresses.
Conclusions
We observed the changes in lipids, lipid indexes and parameters that indicate oxidative modification of lipids in physiological pregnancy that may lead to an atherogenic, prooxidant state.
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14
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Robajac D, Masnikosa R, Miković Ž, Nedić O. Gestation-associated changes in the glycosylation of placental insulin and insulin-like growth factor receptors. Placenta 2016; 39:70-6. [PMID: 26992677 DOI: 10.1016/j.placenta.2016.01.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2015] [Revised: 12/01/2015] [Accepted: 01/06/2016] [Indexed: 11/20/2022]
Abstract
INTRODUCTION Insulin receptor (IR) and type 1 and type 2 insulin-like growth factor receptors (IGF1R and IGF2R) play important roles in regulation of placental and foetal growth. All three receptors are abundantly glycosylated. N-glycosylation significantly affects protein conformation and may alter its function. We have recently found that the N-glycome of placental membrane proteins alters during gestation. The aim of the study presented herein was to investigate whether there were gestation-related changes in N-glycan profiles of placental IR and IGFRs. METHODS Placentas from healthy women at first (FTP) and third trimester (TTP) of pregnancy were collected, membrane proteins isolated, solubilised and used as the source of IR and IGFRs. Reactivity of glycoforms of IR and IGFRs with lectins was monitored by measuring radioactivity of (125)I-ligands-receptors complexes. RESULTS Significant differences in the binding pattern of all three receptors to the lectins were observed between FTP and TTP, which suggest gestational changes in N-glycans bound to receptors. These changes include decrease in total fucosylated, core-fucosylated biantennary N-glycan (NA2F) and α2,6-sialo-N-glycans (for IR); decrease in total fucosylated and α2,6-sialo-N-glycans and an increase in NA2F N-glycans (for IGF1R) and an increase in the total fucosylation and NA2F N-glycans (for IGF2R). DISCUSSION The gestational alterations in N-glycans attached to IR and IGFRs may represent a mechanism by which these receptors acquire new/additional roles as gestation progresses.
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Affiliation(s)
- Dragana Robajac
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade, Serbia
| | - Romana Masnikosa
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade, Serbia.
| | - Željko Miković
- Clinic of Gynaecology and Obstetrics "Narodni Front", University of Belgrade, Belgrade, Serbia
| | - Olgica Nedić
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade, Serbia
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15
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Robajac D, Vanhooren V, Masnikosa R, Miković Ž, Mandić V, Libert C, Nedić O. Preeclampsia transforms membrane N-glycome in human placenta. Exp Mol Pathol 2015; 100:26-30. [PMID: 26655437 DOI: 10.1016/j.yexmp.2015.11.029] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2015] [Accepted: 11/30/2015] [Indexed: 12/24/2022]
Abstract
Posttranslational modifications (PTM) which accompany pathological conditions affect protein structure, characteristics and modulate its activity. Glycosylation is one of the most frequent PTM influencing protein folding, localisation and function. Hypertension is a common gestational complication, which can lead to foetal growth restriction (IUGR) and even to foetal or maternal death. In this work we focused on the impact of preeclampsia complicated with IUGR on placental membrane N-glycome. Results have shown that preeclampsia reduced fucosylation of placental glycans, increased the appearance of paucimannosidic and mannosidic structures with lower number of mannose residues and decreased the amount of glycans with more mannose residues. Since preeclampsia is tightly connected to IUGR, glycosylation changes were investigated also on the functional membrane receptors responsible for growth: insulin receptor and the type 1 insulin-like growth factor receptor (IR and IGF1R). It was found that IR present in the IUGR placenta contained significantly less α2,6-Sia. Therefore, glycans on placental membranes alter due to preeclampsia, but changes seen at the level of the entire N-glycome may be different from the changes detected at the level of a specific glycoprotein. The difference recorded due to pathology in one membrane molecule (IR) was not found in another homologous molecule (IGF1R). Thus, besides studying the glycosylation pattern of the entire placental membrane due to preeclampsia, it is inevitable to study directly glycoprotein of interest, as no general assumptions or extrapolations can be made.
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Affiliation(s)
- Dragana Robajac
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade 381, Serbia.
| | - Valerie Vanhooren
- Department for Molecular Biomedical Research, VIB, Ghent 32, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent 32, Belgium
| | - Romana Masnikosa
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade 381, Serbia
| | - Željko Miković
- Department of High-risk Pregnancies, Clinic of Gynaecology and Obstetrics "Narodni Front", University of Belgrade, Belgrade 381, Serbia
| | - Vesna Mandić
- Department of High-risk Pregnancies, Clinic of Gynaecology and Obstetrics "Narodni Front", University of Belgrade, Belgrade 381, Serbia
| | - Claude Libert
- Department for Molecular Biomedical Research, VIB, Ghent 32, Belgium; Department of Biomedical Molecular Biology, Ghent University, Ghent 32, Belgium
| | - Olgica Nedić
- Institute for the Application of Nuclear Energy - INEP, University of Belgrade, Belgrade 381, Serbia
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16
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Robajac D, Masnikosa R, Miković Ž, Mandić V, Nedić O. Oxidation of placental insulin and insulin-like growth factor receptors in mothers with diabetes mellitus or preeclampsia complicated with intrauterine growth restriction. Free Radic Res 2015; 49:984-9. [PMID: 25812587 DOI: 10.3109/10715762.2015.1020798] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Placental insulin receptor (IR) and insulin-like growth factor receptors (IGFRs) are essential for fetal growth. We investigated structural changes of these receptors exposed to increased oxidative stress in mothers diagnosed with diabetes mellitus (DM) or preeclampsia (PE) complicated with intrauterine growth restriction. Increased amount of IR and decreased amounts of IGF1R and IGF2R were found in both pathologies, accompanied by significant elevation in protein carbonyls. When isolated receptors were examined, increased carbonylation of IR and IGF1R in PE placentas was detected, whereas the amounts of carbonylated IR and IGF1R were similar in DM and healthy placentas. Carbonylation status of IGF2R did not change due to pathology, confirming the detrimental role of primary structure and conformation in oxidative susceptibility. Ligand binding was similar in all three groups of samples and did not seem to be affected by receptor oxidation. Since babies delivered by mothers with PE were smaller than the referent population, increased carbonylation of receptors might have affected downstream receptor signaling post-ligand binding.
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Affiliation(s)
- D Robajac
- Department for Metabolism, INEP - Institute for the Application of Nuclear Energy, University of Belgrade , Belgrade , Republic of Serbia
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17
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Kovač M, Miković Ž, Mandić V, Radojković D, Đorđević V, Mitić G. Clinical characteristics of first venous thrombosis among women under and over 45 years of age. Med Pregl 2014; 67:328-333. [PMID: 25546980] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
INTRODUCTION Venous thromboembolism is a multifactorial disease defined by multiple interactions between genetic and acquired risk factors. After coronary heart disease and stroke, venous thromboembolism is the most common cause of cardiovascular death and disability. MATERIAL AND METHODS In order to investigate the clinical characteristics of first venous thromboembolism, 447 women younger than 45 and 174 over 45 years of age with confirmed venous thromboembolism, who had been tested for the presence of thrombophilia in the period 1998-2012, were included in the study. RESULTS Proximal deep vein thrombosis occurred most often among young women, while distal deep vein thrombosis was the most frequent in the older group. The most common reported risk for venous thromboembolism observed in 49.8% of the young women was pregnancy and puerperium, while 25.2% of them developed venous thromboembolism without any obvious cause. Among women over the age of 45, venous thromboembolism developed without an obvious cause in 38.5%, while malignant disease was identified as the most important risk factor in 23% of them. Thrombophilia was observed in 48.7% of the young women in comparison to 28.7% of the older ones (p < 0.0001). As for venous thromboembolism recurrence, it developed in 26.3% of young women and 17.8% of the older ones (p = 0.03). CONCLUSION Younger women developed more severe forms of thrombosis than the older ones. Inherited risk factor for thrombosis was detected in almost half of all young women, and in every fourth elderly women. With the exception of factor V Leiden mutation, other types of congenital thrombophilia are almost negligible among older women. Therefore, thrombophilia testing in case of first thrombosis is fully justified only in young women.
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18
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Robajac D, Masnikosa R, Vanhooren V, Libert C, Miković Ž, Nedić O. The N-glycan profile of placental membrane glycoproteins alters during gestation and aging. Mech Ageing Dev 2014; 138:1-9. [DOI: 10.1016/j.mad.2014.01.010] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Revised: 12/27/2013] [Accepted: 01/30/2014] [Indexed: 12/16/2022]
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19
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Pristov JB, Maglić D, Opačić M, Mandić V, Miković Ž, Spasić M, Spasojević I. Ante- and postpartum redox status of blood in women with inherited thrombophilia treated with heparin. Thromb Res 2012; 130:826-9. [DOI: 10.1016/j.thromres.2012.08.310] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Revised: 08/13/2012] [Accepted: 08/27/2012] [Indexed: 10/27/2022]
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