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Bhojwani K, Agrawal A. Study of Histopathological Changes in the Placenta in Preeclampsia. Cureus 2022; 14:e30347. [DOI: 10.7759/cureus.30347] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2022] [Accepted: 10/16/2022] [Indexed: 11/07/2022] Open
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Esmkhani S, Sadeghi H, Ghasemian M, Pirjani R, Amin-Beidokhti M, Gholami M, Yassaee F, Mirfakhraie R. Contribution of long noncoding RNA HOTAIR variants to preeclampsia susceptibility in Iranian women. Hypertens Pregnancy 2020; 40:29-35. [PMID: 33264034 DOI: 10.1080/10641955.2020.1855192] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Objective: To investigate the possible association of lncRNA HOTAIR rs920778 and rs874945 polymorphisms with preeclampsia risk in a sample from the Iranian population. Method: The study subjects included 250 preeclamptic women and 250 healthy women. The genotyping for rs920778 and rs874945 polymorphisms were performed using the TP-ARMS-PCR method. Results: HOTAIR rs920778 increased the risk of preeclampsia under the dominant and recessive inheritance patterns (OR = 4.84, 95% CI: 3.30-7.10, P < 0.0001; OR = 6.86, 95% CI: 3.51-13.42, P < 0.0001; respectively). Conclusion: This study confirmed the association of HOTAIR rs920778 polymorphism with preeclampsia in Iranian women. Further studies should be performed to confirm our findings.
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Affiliation(s)
- Sahra Esmkhani
- Men's Health and Reproductive Health Research Center, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Hossein Sadeghi
- Genomic Research Center, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Majid Ghasemian
- Student Research Committee, Department of Clinical Biochemistry, School of Medicine, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Reihaneh Pirjani
- Obstetrics and Gynecology Department, Arash Women Hospital, Tehran University of Medical Sciences , Tehran, Iran
| | - Mona Amin-Beidokhti
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Milad Gholami
- Department of Biochemistry and Genetics, School of Medicine, Arak University of Medical Sciences , Arak, Iran
| | - Fakhrolmolouk Yassaee
- Department of Obstetrics and Gynecology, Taleghani Hospital, Shahid Beheshti University of Medical Sciences , Tehran, Iran
| | - Reza Mirfakhraie
- Department of Medical Genetics, School of Medicine, Shahid Beheshti University of Medical Sciences , Tehran, Iran
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Moon M, Odibo A. First-trimester screening for preeclampsia: impact of maternal parity on modeling and screening effectiveness. J Matern Fetal Neonatal Med 2014; 28:2028-33. [PMID: 25330843 DOI: 10.3109/14767058.2014.978758] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVE The impact of maternal parity on screening efficiency for preeclampsia (PE) has been poorly studied. Our objective was to investigate the effect of maternal parity on models for screening for PE in the first-trimester and their effectiveness. STUDY DESIGN A secondary analysis of a prospective cohort study of women present between 11 and 14 weeks gestation. Maternal risk factors, uterine artery Doppler, mean arterial pressure (MAP) and serum markers including PAPP-A, ADAM12, PP13 in the first-trimester were used to create multi-parameter screening models for PE. The best models for screening in nulliparous versus parous women were developed using backward stepwise logistic regression approach. The area under the receiver operating characteristic curves (AUC) and the sensitivity for fixed false positive rates of 10% and 20%, respectively, were compared using non-parametric statistics. RESULTS Among 1177 women with complete outcome data (503 (42.7%) nulliparous and 674 (57.3%) multiparous), PE occurred in 102 (8.7%). There were significant differences in predicting variables in the final optimal models when stratified by parity; and screening performance also varied by parity. The AUC for the model for nulliparous women was 0.88(95% CI 0.80-0.95); and for multiparous was 0.84 (95% CI, 0.75-0.91). For fixed false positive rate of 10%, the sensitivity for predicting PE was 70% and 68% for nulliparous and multiparous, respectively. The screening performance for the models were however not statistically or clinically significantly different. CONCLUSION We found significant differences in prediction model parameters between nulliparous and multiparous women, but these did not significantly impact screening performance for PE in the first-trimester.
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Affiliation(s)
- Myoungjin Moon
- a Department of Obstetrics and Gynecology , CHA Bundang Medical Center, CHA University , Seongnam-si , Korea and
| | - Anthony Odibo
- b Department of Obstetrics and Gynecology , Morsani College of Medicine, University of South Florida , Tampa , FL , USA
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Odibo AO, Zhong Y, Goetzinger KR, Odibo L, Bick JL, Bower CR, Nelson DM. First-trimester placental protein 13, PAPP-A, uterine artery Doppler and maternal characteristics in the prediction of pre-eclampsia. Placenta 2011; 32:598-602. [PMID: 21652068 PMCID: PMC3142303 DOI: 10.1016/j.placenta.2011.05.006] [Citation(s) in RCA: 98] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 05/13/2011] [Accepted: 05/17/2011] [Indexed: 11/23/2022]
Abstract
OBJECTIVE To test the hypothesis that a combination of PP13, PAPP-A and first-trimester uterine artery Doppler would improve the prediction of pre-eclampsia. METHODS This is a prospective cohort study of pregnant women followed from the first-trimester to delivery. PP13 and PAPP-A were determined by immunoassay of maternal serum at 11-14 weeks', when uterine artery Doppler measurements were assessed. Cases identified with any form of pre-eclampsia were compared with a control group without pre-eclampsia. The sensitivity of each marker or their combinations in predicting pre-eclampsia for different fixed false positive rates was calculated from the ROC curves. RESULTS Forty two women were diagnosed with pre-eclampsia and 410 women with pregnancies not complicated by pre-eclampsia were used as controls. For a fixed false positive rate (FPR) of 20%, PP13, PAPP-A and mean uterine artery pulsatility index identified 49%, 58% and 62% respectively, of women who developed any form of pre-eclampsia. PP13 was best in predicting early onset pre-eclampsia with a sensitivity of 79% at a 20% FPR. Combinations of the three first-trimester assessments did not improve the prediction of pre-eclampsia in later pregnancy. CONCLUSION First-trimester PP13, PAPP-A and uterine artery PI are reasonable, individual predictors of women at risk to develop pre-eclampsia. Combinations of these assessments do not further improve the prediction of pre-eclampsia.
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Affiliation(s)
- A O Odibo
- Department of Obstetrics and Gynecology, Division of Maternal Fetal Medicine and Ultrasound, Washington University in St. Louis, St. Louis, MO 63110, USA.
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Abstract
The number of hypotheses trying to decipher the etiologies of preeclampsia and fetal growth restriction (FGR) is still increasing. However, for preeclampsia the actual knowledge we have is that the placenta is a prerequisite for the development of the syndrome. The recent years have seen a shift in understanding of the causes of preeclampsia from mostly focusing on the extravillous trophoblast towards the dysregulation of villous trophoblast development and maintenance. It seems as if a failure of the villous syncytiotrophoblast differentiation results in abnormal release of non-apoptotic fragments into maternal blood. In preeclampsia such necrotic or aponecrotic fragments can be found in maternal blood systemically and seem to be causative in the development of the inflammatory response of the mother. In cases with fetal growth restriction (FGR) extravillous trophoblast fails to adequately transform uterine spiral arteries. However, in FGR cases abnormal development of villous cytotrophoblast may have an impact on fetal nutrition without the induction of an inflammatory response of the mother. It is still unclear why the villous trophoblast fails to achieve an adequate turnover both in preeclampsia and in FGR. However, the detection of new biomarkers for preeclampsia such as placental protein 13 (PP13) has helped in clarifying the issue of when the syndrome starts to develop. PP13 levels in maternal serum are significantly altered already at six to seven weeks of gestation in women subsequently developing preeclampsia. Thus, there needs to be a very early alteration of villous development in such placentas. Herein the changes in villous trophoblast in preeclampsia and FGR are compared and differences between both scenarios are presented.
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Affiliation(s)
- Berthold Huppertz
- Institute of Cell Biology, Histology and Embryology, Center for Molecular Medicine, Medical University of Graz, Harrachgasse 21/7, 8010 Graz, Austria
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Lambert-Messerlian GM, Palomaki GE, Neveux LM, Chien E, Friedman A, Rosene-Montella K, Hayes M, Canick JA. Early onset preeclampsia and second trimester serum markers. Prenat Diagn 2009; 29:1109-17. [DOI: 10.1002/pd.2387] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Saldana TM, Basso O, Baird DD, Hoppin JA, Weinberg CR, Blair A, Alavanja MCR, Sandler DP. Pesticide exposure and hypertensive disorders during pregnancy. ENVIRONMENTAL HEALTH PERSPECTIVES 2009; 117:1393-6. [PMID: 19750103 PMCID: PMC2737015 DOI: 10.1289/ehp.0900672] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/09/2009] [Accepted: 06/04/2009] [Indexed: 05/02/2023]
Abstract
BACKGROUND Hypertensive disorders of pregnancy, including pregnancy-induced hypertension (PIH) and preeclampsia (PE), complicate 2-8% of pregnancies. Few studies have examined environmental risk factors in relation to these conditions. OBJECTIVES Our goal was to examine whether pesticide exposure during pregnancy was associated with hypertensive disorders of pregnancy. METHODS We analyzed self-reported data from 11,274 wives of farmers enrolled in the Agricultural Health Study (AHS) between 1993 and 1997. Using logistic regression models, we estimated the adjusted odds ratios (AORs) for PIH and PE associated with pesticide-related activities during the first trimester of pregnancy. RESULTS First-trimester residential and agricultural activities with potential exposure to pesticides were associated with both PIH [residential AOR = 1.27; 95% confidence interval (CI), 1.02-1.60; agricultural AOR = 1.60; 95% CI, 1.05-2.45] and PE (residential AOR = 1.32; 95% CI, 1.02-1.70; agricultural AOR = 2.07; 95% CI, 1.34-3.21). CONCLUSIONS Exposure to pesticides during pregnancy may increase the risk of hypertensive disorders of pregnancy. Laboratory research may provide insights into relationships between pesticide exposure and hypertensive diseases of pregnancy.
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Affiliation(s)
- Tina M Saldana
- Social and Scientific Systems, Inc., 1009 Slater Road, Durham, NC 27703, USA.
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Farina A, Sekizawa A, De Sanctis P, Purwosunu Y, Okai T, Cha DH, Kang JH, Vicenzi C, Tempesta A, Wibowo N, Valvassori L, Rizzo N. Gene expression in chorionic villous samples at 11 weeks' gestation from women destined to develop preeclampsia. Prenat Diagn 2009; 28:956-61. [PMID: 18792924 DOI: 10.1002/pd.2109] [Citation(s) in RCA: 74] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE To evaluate the direct alterations in mRNA expression among chorionic villous samples from 11 weeks' pregnant women who would develop preeclampsia (PE) later in the pregnancy. METHOD Case-control study encompassing five women destined to develop PE [cases matched 1:5 for gestational age (GA) with 25 controls]. We quantified mRNA expression on tissue samples from chorionic villous sampling (CVS) of normal and PE patients. We then assessed mRNA expressions of vascular endothelial growth factor (VEGFA), VEGFA receptor 1 (Flt-1), endoglin (Eng), placental growth factor (PlGF), transforming growth factor-beta1 (TGF-beta1), heme oxygenase-1 (HO-1) and superoxide dismutase (SOD). Data were analyzed by nonparametric rank analysis. RESULTS For all the mRNA species considered in this study, all the mean observed ranks in the PE group were significantly altered compared to the rank expectation among controls. mRNA for Eng and TGF-beta1 were the markers with the highest degree of aberration in PE, in respect to controls. The results are consistent with those already reported for the corresponding circulating proteins. mRNA for HO-1 and SOD were instead associated with the lowest aberration. CONCLUSION It is assumed that the pathogenesis of PE is associated with pathophysiological alterations to trophoblasts in early gestation. Our study has directly proved that gene expressions relating to angiogenesis or oxidative stress are altered in the first trimester trophoblasts that go on to develop PE later. These results would put the basis for a possible screening method for PE by using residual CVS.
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Affiliation(s)
- Antonio Farina
- Department of Histology and Embryology, Division of Prenatal Medicine, University of Bologna, Bologna, Italy.
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Affiliation(s)
- Berthold Huppertz
- Institute of Cell Biology, Histology and Embryology, Center of Molecular Medicine, Medical University Graz, Harrachgasse 21/7, 8010 Graz, Austria.
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Simonazzi G, Vicenzi C, Rizzo MA, Farina A, Gabrielli S, Arcelli D, Pilu G, Sekizawa A, Rizzo N. Prospective evaluation of the risk of pre-eclampsia using logistic regression analysis. ULTRASOUND IN OBSTETRICS & GYNECOLOGY : THE OFFICIAL JOURNAL OF THE INTERNATIONAL SOCIETY OF ULTRASOUND IN OBSTETRICS AND GYNECOLOGY 2007; 30:312-7. [PMID: 17688308 DOI: 10.1002/uog.4063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
OBJECTIVES To calculate the risk of developing pre-eclampsia (PET) in a consecutive series of low-risk women at 18-24 weeks' gestation, using recently published logistic regression models. METHODS This was a prospective study, with complete follow-up, in a consecutive series of unselected low-risk singleton pregnancies. Uterine artery pulsatility index as well as a combination of maternal factors were recorded at 18-24 weeks' gestation. The distribution of the estimated risks for the 16 PET patients was compared with that obtained for 136 women who had a normal pregnancy, as assessed by routine testing. A receiver-operating characteristics (ROC) curve was plotted to evaluate the detection rate at fixed false-positive rates (FPRs) of 5%, 10% and 20% and the corresponding odds cut-offs. RESULTS Just 1/16 (6.2%) women with PET developed the disease before the 34(th) week of gestation. Using the 'All PET' logistic regression model, for 16 PET cases the overall median odds was 1 : 1454, higher compared with that of 1 : 41635 estimated for controls. Using the 'PET >or= 34 weeks' model, the median odds of the 15 women who developed PET late was 1 : 3405, compared with 1 : 40785 for controls. In the case of PET before 34 weeks, the risk was 1 : 426373 vs. 1 : 4159823126 estimated for controls ('PET < 34 weeks' model). Detection rates for the All PET model were 18%, 50% and 62% at a FPR of 5%, 10% and 20%, respectively. For the PET >or= 34 weeks model these detection rates were 6%, 46% and 60%, respectively. CONCLUSION Even though the individual odds estimation is too low to represent the real risk of PET, the recently published logistic regression models detected more than 60% of PET at a FPR of 20% for both All PET and PET >or= 34 weeks models. Using these models in clinical practice does not seem to give any significant improvement over Doppler alone in the prediction of PET, but the use of a PET-specific odds instead of an actual Doppler value alone seems to be useful for clinical management.
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Affiliation(s)
- G Simonazzi
- Department of Obstetrics and Gynaecology, University of Bologna, Bologna, Italy.
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Chafetz I, Kuhnreich I, Sammar M, Tal Y, Gibor Y, Meiri H, Cuckle H, Wolf M. First-trimester placental protein 13 screening for preeclampsia and intrauterine growth restriction. Am J Obstet Gynecol 2007; 197:35.e1-7. [PMID: 17618748 DOI: 10.1016/j.ajog.2007.02.025] [Citation(s) in RCA: 144] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2006] [Revised: 12/11/2006] [Accepted: 02/22/2007] [Indexed: 01/06/2023]
Abstract
OBJECTIVE The purpose of this study was to evaluate first-trimester serum placental protein 13 (PP13) as a screening test for preeclampsia and intrauterine growth restriction (IUGR). STUDY DESIGN We performed a prospective, nested case-control study in the Massachusetts General Hospital Obstetric Maternal Study. PP13 was measured by solid-phase sandwich enzyme-linked immunosorbent assay in serum samples that were collected at the first prenatal visit (9-12 weeks of gestation) from women who subsequently experienced preeclampsia (n = 47), IUGR (n = 42), or preterm delivery (n = 46). Women with uncomplicated term deliveries served as control subjects (n = 290) and were matched to cases by gestational age when serum was collected and for the duration of specimen storage. RESULTS The median first-trimester PP13 level was 132.5 pg/mL in the control subjects. Median PP13 levels were significantly lower among women who had preeclampsia (27.2 pg/mL; P < .001), IUGR (86.6 pg/mL; P < .001), and preterm delivery (84.9 pg/mL; P = .007). When PP13 was expressed as multiples of the gestational age-specific medians among the control subjects, the multiples of the medians were 0.2 for preeclampsia, 0.6 for IUGR, and 0.6 for preterm delivery (P < .001 for each disorder compared with control subjects). Receiver operating characteristic analysis yielded areas under the curve of 0.91, 0.65, and 0.60 for preeclampsia, IUGR, and preterm delivery, respectively. At a 90% specificity rate, the corresponding sensitivities were 79%, 33%, and 28%, respectively. CONCLUSION The screening of maternal PP13 levels in the first trimester is a promising diagnostic tool for the prediction of preeclampsia with high sensitivity and specificity.
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Banzola I, Farina A, Concu M, Sekizawa A, Purwosunu Y, Strada I, Arcelli D, Simonazzi G, Caramelli E, Rizzo N. Performance of a panel of maternal serum markers in predicting preeclampsia at 11–15 weeks' gestation. Prenat Diagn 2007; 27:1005-10. [PMID: 17654753 DOI: 10.1002/pd.1821] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE We evaluated whether a discriminant model of prediction based on quantitative distribution of a panel of biomolecules in maternal serum can discriminate normal pregnancies from those who will develop preeclampsia (PE) prior to onset of clinical symptoms at 11-15 weeks' gestation. METHODS Case control study encompassing 56 women destined to develop PE cases matched 1:3 for gestational age with 168 controls. After multiple of median (MoM) conversion of all available markers, comprising total Activin A (t-activin A), P-selectin, and vascular endothelial growth factor receptor (VEGFR) the combined likelihood ratios generated for each marker were used to calculate, for each patient enrolled in the study, the odds of being affected given a positive results (OAPR) of developing PE. For all the analyses performed, the type II error was < 20% with a type I error fixed at 5%. RESULTS Data were expressed in MoM of controls. P-selectin was identified as the marker with the best discriminant ability between controls and PE, followed by (t-activin A). No significant differences in VEGFR were observed between cases and controls. By using a 3% prevalence of PE (or, about 1:33) we found that the median OAPR of developing PE for the 56 cases was 1:9 or 10% (1:1-1:417). The median OAPR of PE for controls was 1:40 or 2.5% (range, 1:6-1:4205). Detection rate of the statistical model, with a 5% false-positive rate was 59%. CONCLUSION This analysis revealed that maternal serum markers assessed at the first and second trimester of pregnancy in asymptomatic patients can improve the early detection of cases at higher risk of developing PE.
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Affiliation(s)
- Irina Banzola
- Department of Embryology Division of Prenatal Medicine, University of Bologna, Bologna, Italy
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Farina A, Sekizawa A, Purwosunu Y, Rizzo N, Banzola I, Concu M, Morano D, Giommi F, Bevini M, Mabrook M, Carinci P, Okai T. Quantitative distribution of a panel of circulating mRNA in preeclampsiaversus controls. Prenat Diagn 2006; 26:1115-20. [PMID: 16952198 DOI: 10.1002/pd.1562] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The aim of this study was to evaluate whether the quantitative distribution of a panel of circulating mRNAs from maternal whole blood of normal pregnancies is statistically different from those complicated with preeclampsia (PE) with or without intrauterine growth restriction (IUGR). METHODS Maternal whole blood of six subjects with mild or severe PE with or without IUGR and 30 matched controls (1:5 match for gestational age) were retrospectively examined for circulating mRNA markers. Seven specific mRNA markers were identified and chosen based on previous microarray mRNA expressions performed on placental tissue from normal and PE patients. They were human placental lactogen (hPL), inhibin A, KISS-1, pregnancy-associated plasma protein-A (PAPP-A), plasminogen activator inhibitor type 1 (PAI-1), selectin-P and vascular endothelial growth factor receptor (VEGFR), which were therefore quantified for statistical purposes. RESULTS Median gestational age was 229 (178-283) and 232 (194-262) days for controls and cases respectively. All mRNA markers but PAPP-A, showed statistically different median values. They were hPL, inhibin A, KISS-1, PAI-1, Selectin-P, and VEGFR. Inhibin A, Selectin-P and VEGFR showed higher values than expected for controls. Instead, hPL, KISS-1 and PAI-1 values of PE patients were lower than those of controls. Selectin-P was the marker with the most aberrant difference, followed by VEGFR and KISS-1. CONCLUSION This preliminary analysis revealed that the median values of a panel of mRNAs from the maternal blood of PE patients were different from those of the same gestational age control group at the third trimester. If prospective studies at the second trimester could detect a related marker sufficiently able to discriminate between affected and unaffected patients and thus detect the disease before its clinical onset, then a screening project using a panel of mRNAs would be feasible.
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Affiliation(s)
- Antonio Farina
- Dept of Embryology, Division of Prenatal Medicine, University of Bologna, Bologna, Italy.
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Abstract
PURPOSE OF REVIEW Preeclampsia is a common complication of pregnancy and a significant cause of fetal and maternal morbidity and mortality. The purpose of this review is to highlight and discuss aspects of some of the more recent clinical management papers published in the field of preeclampsia and eclampsia. The title explains the clinical nature of this paper and a detailed review of the basic science literature is beyond the scope of this article. RECENT FINDINGS Several controversial areas still exist in the current management of severe preeclampsia/eclampsia. We present a number of interesting papers dealing with practical management questions and discuss the optimum treatment regimen for preventing eclampsia. The findings of the MAGPIE study are discussed. Opinions are expressed as to the current management of preterm severe preeclampsia, and we outline a new hypothesis on the etiology of eclampsia. SUMMARY Preeclampsia/eclampsia remains a disease without a clear etiology. Despite this, clinical management issues are being addressed and maternal morbidity and mortality continue to fall.
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Affiliation(s)
- Antonio E Frias
- Department of Obstetrics & Gynecology, Division of Maternal Fetal Medicine, University of Utah Health Sciences Center, Salt Lake City, Utah, USA
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