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Chirilă CN, Mărginean C, Ghiga DV, Voidăzan S, Chirilă PM, Gliga ML. A Second Trimester Prediction Algorithm for Early-Onset Hypertensive Disorders of Pregnancy Occurrence and Severity Based on Soluble fms-like Tyrosine Kinase 1 (sFlt-1)/Placental Growth Factor (PlGF) Ratio and Uterine Doppler Ultrasound in Women at Risk. CHILDREN (BASEL, SWITZERLAND) 2024; 11:468. [PMID: 38671685 PMCID: PMC11049313 DOI: 10.3390/children11040468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 04/09/2024] [Accepted: 04/10/2024] [Indexed: 04/28/2024]
Abstract
Hypertensive disorders of pregnancy (HDPs) represent a significant source of severe maternal and fetal morbidity. Screening strategies relying on traditional medical history and clinical risk factors have traditionally shown relatively modest performance, mainly in the prediction of preeclampsia, displaying a sensitivity of 37% for the early-onset form and 29% for the late-onset form. The development of more accurate predictive and diagnostic models of preeclampsia in the early stages of pregnancy represents a matter of high priority. The aim of the present paper is to create an effective second trimester prediction algorithm of early-onset HDP occurrence and severity, by combining the following two biochemical markers: a soluble fms-like tyrosine kinase 1 (sFlt-1)/placental growth factor (PlGF) ratio and uterine artery Doppler ultrasound parameters, namely the pulsatility index (PI) and the resistivity index (RI), in a population of high-risk pregnant women, initially assessed through traditional risk factors. A prospective single-center observational longitudinal study was conducted, in which 100 women with singleton pregnancy and traditional clinical and medical history risk factors for preeclampsia were enrolled at 24 weeks of gestation. Shortly after study enrollment, all women had their sFlt-1 and PlGF levels and mean uterine artery PI and RI determined. All pregnancies were followed up until delivery. Receiver operating characteristic (ROC) analysis established algorithms based on cutoffs for the prediction of the later development of preeclampsia: PI 1.25 (96.15% sensitivity, 86.49% specificity), RI 0.62 (84.6% sensitivity, 89.2% specificity) and sFlt-1/PlGF ratio 59.55 (100% sensitivity, 89.2% specificity). The sFlt-1/PlGF ratio was the best predictor for preeclampsia, as it displayed the highest area under the curve (AUC) of 0.973. The prediction algorithm for the severe form of preeclampsia, complicated by fetal growth restriction leading to preterm birth, antepartum fetal demise or acute fetal distress with a cerebro-placental ratio of
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Affiliation(s)
- Cristian Nicolae Chirilă
- Department of Internal Medicine-Nephrology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (C.N.C.); (M.L.G.)
- Department of Nephrology, Mures Clinical County Hospital, 540103 Târgu Mureș, Romania
- Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania;
| | - Claudiu Mărginean
- Department of Obstetrics and Gynecology 2, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania
- Department of Obstetrics and Gynecology, Mures Clinical County Hospital, 540057 Târgu Mureș, Romania
| | - Dana Valentina Ghiga
- Department of Scientific Medical Research Methodology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania;
| | - Septimiu Voidăzan
- Department of Epidemiology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania;
| | - Paula Maria Chirilă
- Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania;
- Department of Endocrinology, Mures Clinical County Hospital, 540142 Târgu Mureș, Romania
| | - Mirela Liana Gliga
- Department of Internal Medicine-Nephrology, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (C.N.C.); (M.L.G.)
- Department of Nephrology, Mures Clinical County Hospital, 540103 Târgu Mureș, Romania
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Mahajan KS, Dewani D, Duragkar S. Umbilical Artery Doppler Indices in Hypertensive Disorders of Pregnancy: Impact on Fetal Outcomes. Cureus 2023; 15:e50876. [PMID: 38249223 PMCID: PMC10799235 DOI: 10.7759/cureus.50876] [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: 11/13/2023] [Accepted: 12/20/2023] [Indexed: 01/23/2024] Open
Abstract
Background Hypertensive disorders of pregnancy (HDP) are associated with increased maternal and fetal risks. Doppler ultrasound indices of the umbilical artery have shown promise in predicting adverse fetal outcomes in HDP patients. This observational study investigated the correlation between abnormal umbilical artery Doppler indices and adverse fetal outcomes in HDP patients. Methodology Over a two-year period from 2020 to 2022, in Acharya Vinoba Bhave Rural Hospital, central India, we enrolled 138 pregnant women with HDP beyond 28 weeks of gestation and singleton pregnancies. Comprehensive clinical assessments, laboratory investigations, and Doppler studies of the umbilical artery were performed. Doppler indices assessed included the systolic/diastolic (S/D) ratio, resistance index (RI), and pulsatility index (PI). Adverse fetal outcomes were defined based on birth weight and neonatal intensive care unit admissions. Chi-square or Fisher's exact test was used for analyzing the relationship between qualitative data, while an independent-sample t-test was employed for quantitative data. Results Abnormal umbilical artery Doppler indices, including an elevated S/D ratio, RI, and PI, demonstrated a positive correlation with adverse fetal outcomes in HDP patients. These findings highlight the significance of umbilical artery Doppler indices as reliable indicators for anticipating adverse fetal outcomes in HDP patients. Conclusions Abnormal Doppler indices in the umbilical artery, including an elevated S/D ratio, RI, and PI, appear to be valuable predictors for adverse fetal outcomes in patients with HDP. Monitoring these indices can aid in risk stratification and improve the management of pregnancies complicated by HDP.
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Affiliation(s)
- Kalyani S Mahajan
- Obstetrics and Gynecology, Symbiosis Medical College for Women, Symbiosis International University, Pune, IND
| | - Deepika Dewani
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
| | - Sakshi Duragkar
- Obstetrics and Gynecology, Jawaharlal Nehru Medical College, Datta Meghe Institute of Higher Education and Research, Wardha, IND
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Bakre AFK, Morhe ESK, Ofori EK, Donkor E, Okeji MC, Kwadjo S, Cornelius IV, Musa HM, Yakubu C, Ogolodom MP. Sonographic evaluation of maternal uterine artery from 11 - 30 weeks 6 days of gestational age in a Nigerian population: A predictive index for pre-eclampsia and intrauterine growth restriction. Radiography (Lond) 2023; 29:1035-1040. [PMID: 37714067 DOI: 10.1016/j.radi.2023.08.009] [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: 04/12/2023] [Revised: 08/06/2023] [Accepted: 08/30/2023] [Indexed: 09/17/2023]
Abstract
INTRODUCTION Uterine artery (UtA) Doppler sonography is a potential screening tool for pregnancy complications in placental insufficiency. Evaluation of the maternal and fetal vessels in pregnancy ensures accurate identification and prediction of pregnancy complications, such as preeclampsia (PE) and intrauterine growth restrictions (IUGR). The study aims to establish local reference values for UtA in a Nigerian population. METHODS This prospective longitudinal study was conducted among 230 pregnant women. All participants had their left (Lt) and right (RT) UtAs evaluated with a Doppler ultrasound from 11 to 30 weeks 6 days of gestational age. Peak systolic velocity (PSV), End diastolic Velocity (EDV), Systolic/Diastolic ratio (S/D), Pulsatility Index (PI), and Resistivity Index (RI) were measured and documented. RESULTS The mean values of UtA at 11-30 weeks 6 days of GA ranged as follows: 0.79-0.53 (RI), 1.83-0.79 (PI), 5.16-2.23 (S/D), 96.37-98.00 (PSV) & 26.07-44.14 (EDV). While the mean values of the Rt. & Lt. UtA 's ranged as follows: 0.79-0.50 (RI. Rt), 0.78-0.56 (RI. Lt), 2.05-0.80 (PI. Rt), 1.61-0.78 (PI. Lt), 6.03-2.13 (S/D. Rt), 4.29-2.33 (S/D. Lt), 89.79-99.23 (PSV. Rt), 102.76-96.71 (PSV. Lt) & 23.31-45.25 (EDV. Rt), 28.83-43.02 (EDV. Lt) respectively. CONCLUSION UtA Doppler reference range was established in the study population. These reference ranges will be of clinical value in daily obstetric practice. IMPLICATION FOR PRACTICE Obstetricians and sonographers will apply these values for early prediction of pregnancies at risk of complications in the locality.
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Affiliation(s)
- A F K Bakre
- Department of Medical Imaging and Allied Sciences Ho, Ghana.
| | - E S K Morhe
- School of Medicine, The University of Health and Allied Sciences Ho. Ghana
| | - E K Ofori
- Department of Medical Imaging and Allied Sciences Ho, Ghana
| | - E Donkor
- Department of Medical Imaging and Allied Sciences Ho, Ghana
| | - M C Okeji
- Department of Radiography and Radiological Sciences. University of Nigeria, Enugu Campus, Nigeria
| | - S Kwadjo
- Department of Medical Imaging and Allied Sciences Ho, Ghana
| | - I V Cornelius
- Department of Radiography& Radiological Science, Faculty of Allied Medical Sciences College of Medical Sciences. University of Calabar, Calabar, Nigeria
| | - H M Musa
- Esteem Diagnostic Medical Services Limited, Lagos Nigeria
| | - C Yakubu
- Lagos University Teaching Hospital, Idi-Araba (LUTH) Lagos Nigeria
| | - M P Ogolodom
- Department of Radiography, Faculty of Basic Medical Sciences, Rivers State University, Port Harcourt, Nigeria
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Chirilă CN, Mărginean C, Chirilă PM, Gliga ML. The Current Role of the sFlt-1/PlGF Ratio and the Uterine-Umbilical-Cerebral Doppler Ultrasound in Predicting and Monitoring Hypertensive Disorders of Pregnancy: An Update with a Review of the Literature. CHILDREN (BASEL, SWITZERLAND) 2023; 10:1430. [PMID: 37761391 PMCID: PMC10528130 DOI: 10.3390/children10091430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2023] [Revised: 08/07/2023] [Accepted: 08/10/2023] [Indexed: 09/29/2023]
Abstract
Regarding the hypertensive disorders of pregnancy, pre-eclampsia (PE) remains one of the leading causes of severe and life-threatening maternal and fetal complications. Screening of early-onset PE (<34 weeks of pregnancy), as well as late-onset PE (≥34 weeks), shows poor performance if based solely on clinical features. In recent years, biochemical markers from maternal blood-the pro-angiogenic protein placental growth factor (PlGF) and the antiangiogenic protein soluble FMS-like tyrosine kinase 1 (sFlt-1)-and Doppler velocimetry indices-primarily the mean uterine pulsatility index (PI), but also the uterine resistivity index (RI), the uterine systolic/diastolic ratio (S/D), uterine and umbilical peak systolic velocity (PSV), end-diastolic velocity (EDV), and uterine notching-have all shown improved screening performance. In this review, we summarize the current status of knowledge regarding the role of biochemical markers and Doppler velocimetry indices in early prediction of the onset and severity of PE and other placenta-related disorders, as well as their role in monitoring established PE and facilitating improved obstetrical surveillance of patients categorized as high-risk in order to prevent adverse outcomes. A sFlt-1/PlGF ratio ≤ 33 ruled out early-onset PE with 95% sensitivity and 94% specificity, whereas a sFlt-1/PlGF ≥88 predicted early-onset PE with 88.0% sensitivity and 99.5% specificity. Concerning the condition's late-onset form, sFlt-1/PlGF ≤ 33 displayed 89.6% sensitivity and 73.1% specificity in ruling out the condition, whereas sFlt-1/PlGF ≥ 110 predicted the condition with 58.2% sensitivity and 95.5% specificity. The cut-off values of the sFlt-1/PlGF ratio for the screening of PE were established in the PROGNOSIS study: a sFlt-1/PlGF ratio equal to or lower than 38 ruled out the onset of PE within one week, regardless of the pregnancy's gestational age. The negative predictive value in this study was 99.3%. In addition, sFlt-1/PlGF > 38 showed 66.2% sensitivity and 83.1% specificity in predicting the occurrence of PE within 4 weeks. Furthermore, 2018 ISUOG Practice Guidelines stated that a second-trimester mean uterine artery PI ≥ 1.44 increases the risk of later PE development. The implementation of a standard screening procedure based on the sFlt-1/PlGF ratio and uterine Doppler velocimetry may improve early detection of pre-eclampsia and other placenta-related disorders.
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Affiliation(s)
- Cristian Nicolae Chirilă
- Department of Internal Medicine-Nephrology, Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (C.N.C.); (M.L.G.)
- Department of Nephrology, Mures Clinical County Hospital, 540103 Târgu Mureș, Romania
| | - Claudiu Mărginean
- Department of Obstetrics and Gynecology 2, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania
- Department of Obstetrics and Gynecology, Mures Clinical County Hospital, 540057 Târgu Mureș, Romania
| | - Paula Maria Chirilă
- Department of Endocrinology, Mures Clinical County Hospital, 540142 Târgu Mureș, Romania;
| | - Mirela Liana Gliga
- Department of Internal Medicine-Nephrology, Doctoral School, George Emil Palade University of Medicine, Pharmacy, Science and Technology of Târgu Mureș, 540142 Târgu Mureș, Romania; (C.N.C.); (M.L.G.)
- Department of Nephrology, Mures Clinical County Hospital, 540103 Târgu Mureș, Romania
- Diaverum Dialysis Centre, 540487 Târgu Mureș, Romania
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Sedaghati F, Gleason RL. A mathematical model of vascular and hemodynamics changes in early and late forms of preeclampsia. Physiol Rep 2023; 11:e15661. [PMID: 37186372 PMCID: PMC10132946 DOI: 10.14814/phy2.15661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2023] [Revised: 03/15/2023] [Accepted: 03/16/2023] [Indexed: 05/17/2023] Open
Abstract
Preeclampsia-eclampsia syndrome is a leading cause of maternal mortality. The precise etiology of preeclampsia is still not well-defined and different forms exist, including early and late forms or preeclampsia, which may arise via distinctly different mechanisms. Low-dose aspirin administered at the end of the first trimester in women identified as high risk has been shown to reduce the incidence of early, but not late, preeclampsia; however, current risk factors show only fair predictive capability. There is a pressing need to develop accurate descriptions for the different forms of preeclampsia. This paper presents 1D fluid, solid, growth, and remodeling models for pregnancies complicated with early and late forms of preeclampsia. Simulations affirm a broad set of literature results that early forms of preeclampsia are characterized by elevated uterine artery pulsatility index (UA-PI) and total peripheral resistance (TPR) and lower cardiac output (CO), with modestly increased mean arterial blood pressure (MAP) in the first half of pregnancy, with elevation of TPR and MAP beginning at 20 weeks. Conversely, late forms of preeclampsia are characterized by only slightly elevated UA-PI and normal pre-term TPR, and slightly elevated MAP and CO throughout pregnancy, with increased TPR and MAP beginning after 34 weeks. Results suggest that preexisting arterial stiffness may be elevated in women that develop both early forms and late forms of preeclampsia; however, data that verify these results are lacking in the literature. Pulse wave velocity increases in early- and late-preeclampsia, coincident with increases in blood pressure; however, these increases are mainly due to the strain-stiffening response of larger arteries, rather than arterial remodeling-derived changes in material properties. These simulations affirm that early forms of preeclampsia may be associated with abnormal placentation, whereas late forms may be more closely associated with preexisting maternal cardiovascular factors; simulations also highlight several critical gaps in available data.
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Affiliation(s)
- Farbod Sedaghati
- The George W. Woodruff School of Mechanical EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
| | - Rudolph L. Gleason
- The George W. Woodruff School of Mechanical EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
- The Wallace H. Coulter Department of Biomedical EngineeringGeorgia Institute of TechnologyAtlantaGeorgiaUSA
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Khanijo P, Nautiyal R, Mangla M, Rajput R, Saini M. Diagnostic Accuracy of Gestosis Score in Comparison to multi-marker Screening as a Predictor of Preeclampsia at 11-14 Weeks of Pregnancy: A Cohort Study. Curr Hypertens Rev 2023; 19:187-193. [PMID: 37534787 DOI: 10.2174/1573402119666230803114504] [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: 04/21/2023] [Revised: 06/08/2023] [Accepted: 07/05/2023] [Indexed: 08/04/2023]
Abstract
BACKGROUND Pre-eclampsia is a pregnancy-specific multisystemic disorder associated with adverse feto-maternal outcomes. Low-dose Aspirin therapy started in early pregnancy in high-risk women, has significantly reduced the chances of developing PE. Therefore, screening and identification of at-risk mothers are crucial. The present study was planned to study the predictive ability of gestosis score in predicting early-onset pre-eclampsia by comparing it with the multi-marker model. MATERIAL AND METHODS One hundred sixteen women, more than 19 years of age, with live singleton pregnancy at 11-13 weeks of gestation were recruited from the antenatal outpatient department and formed the study cohort. After a detailed history, screening for pre-eclampsia was performed both by multi-marker screening and by gestosis score. Diagnostic accuracy was compared for the two methods of screening. RESULTS The incidence of pre-eclampsia in the present study cohort was 26.7%. The sensitivity of gestosis score >/= 3 was 84.38% (67.21-94.72) and specificity was 93.18% (85.75-97.46 %). The positive predictive value was 81.82% (67.2%-90.81%), and the negative predictive value was 94.25 (87.98 - 97.35%). The diagnostic accuracy of the gestosis score was 90.83%. CONCLUSION Gestosis scoring is a potential tool that can be used as a cost-effective screening method for pre-eclampsia at 11-14 weeks of gestation in low-resource settings. The sensitivity and negative predictive value of the gestosis score is comparable to multi-marker screening using maternal factors, MAP, Uterine artery PI, PAPP-A, and PlGF.
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Affiliation(s)
- Priya Khanijo
- Department of Obstetrics & Gynaecology, Himalayan Institute of Medical Sciences, Jolly Grant, Dehradun, India
| | - Ruchira Nautiyal
- Department of Obstetrics & Gynaecology Himalayan Institute of Medical Sciences, Jolly Grant, Dehradun, India
| | - Mishu Mangla
- Department of Obstetrics & Gynaecology, All India Institute of Medical Sciences, Bibinagar, Hyderabad, India
| | - Rashmi Rajput
- Department of Obstetrics & Gynaecology, Himalayan Institute of Medical Sciences, Jolly Grant, Dehradun, India
| | - Manju Saini
- Department of Radiodiagnosis, Himalayan Institute of Medical Sciences, Jolly Grant, Dehradun, India
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Two-Dimensional Ultrasound and Triplane Tissue Doppler Ultrasound of Patients with Severe Preeclampsia. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2022; 2022:3384713. [PMID: 35770113 PMCID: PMC9236786 DOI: 10.1155/2022/3384713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/28/2022] [Accepted: 05/31/2022] [Indexed: 11/17/2022]
Abstract
This study was to investigate the cardiac function characteristics under two-dimensional ultrasound and triplane tissue Doppler imaging (TDI) of patients with severe preeclampsia (SPE). 28 SPE patients with singleton pregnancy from January 2018 to December 2020 were included in the SPE group. 25 healthy nonpregnant women of reproductive age were taken as the control group (Ctrl group), and 26 normal pregnant women with singleton pregnancy were selected as the normal group (Norm group); all the research objects underwent ultrasonography. The morphological and functional indexes of left and right ventricles were compared among the cases in different groups. The results showed that the left ventricular end-diastolic period diameter (LVEDd), left ventricular relative wall thickness (LV-RWT), left ventricular mass index (LVMi), left anterior descending (LAd), left ventricular
and
values, right ventricular diameter (RV-D), right ventricular anterior wall thickness (RVAW),
value, right atrial septum (RA-S), pulmonary artery systolic pressure (PASP), left ventricular end-systolic period diameter (LVEds), interventricular septal thickness (IVSd), posterior wall thickness (PWd), end-diastolic period volume (EVD), end-systolic period volume (ESV), relative wall thickness (RWT), sphericity index (SpI), left atrium volume index (LAVi), and
value of patients in the SPE group were higher than those in the Ctrl group and the Norm group (
). The mitral annular plane systolic excursion (MAPSE),
value, tricuspid annual plane systolic excursion (TAPSE), ratio of early diastolic blood flow velocity to late diastolic blood flow velocity (
), ratio of peak early diastolic velocity to peak late diastolic velocity (
), peak early diastolic velocity (
), and ejection fraction (EF) of the SPE group were lower than those of the Ctrl group and the Norm group (
). The ratio of mitral valve early diastolic blood flow velocity to peak early diastolic velocity (
) of the Norm group was higher than that of the Ctrl group (
). In two-dimensional ultrasound of the SPE group, the maximum difference in time from the start to the peak of systole (Ts) of the right ventricle between the basal and middle segments of the lateral wall and that of interventricular septum (RV-Ts-max) was
. The maximum difference in time to peak of early diastole (Te) under the same condition (RV-Te-max) was
. Left ventricular LV-Ts-max and LV-Te-max were
and
, respectively, in triplane TDI, which were considerably higher than those in the Ctrl and Norm groups (
). It suggested that two-dimensional ultrasound and triplane TDI could reflect the ventricular morphology as well as diastolic and systolic function injury in patients, which offered a reference basis for the diagnosis of SPE.
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Rocha AS, Andrade ARA, Moleiro ML, Guedes-Martins L. Doppler Ultrasound of the Umbilical Artery: Clinical Application. REVISTA BRASILEIRA DE GINECOLOGIA E OBSTETRICIA : REVISTA DA FEDERACAO BRASILEIRA DAS SOCIEDADES DE GINECOLOGIA E OBSTETRICIA 2022; 44:519-531. [PMID: 35405757 PMCID: PMC9948152 DOI: 10.1055/s-0042-1743097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
OBJECTIVE To provide a survey of relevant literature on umbilical artery Doppler ultrasound use in clinical practice, technical considerations and limitations, and future perspectives. METHODS Literature searches were conducted in PubMed and Medline, restricted to articles written in English. Additionally, the references of all analyzed studies were searched to obtain necessary information. RESULTS The use of this technique as a routine surveillance method is only recommended for high-risk pregnancies with impaired placentation. Meta-analyses of randomized trials have established that obstetric management guided by umbilical artery Doppler findings can improve perinatal mortality and morbidity. The values of the indices of Umbilical artery Doppler decrease with advancing gestational age; however, a lack of consensus on reference ranges prevails. CONCLUSION Important clinical decisions are based on the information obtained with umbilical artery Doppler ultrasound. Future efforts in research are imperative to overcome the current limitations of the technique.
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Affiliation(s)
- Ana Sá Rocha
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal
| | - Ana Rosa Araújo Andrade
- Departamento da Mulher e da Medicina Reprodutiva, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto EPE, Porto, Portugal
| | - Maria Lúcia Moleiro
- Departamento da Mulher e da Medicina Reprodutiva, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto EPE, Porto, Portugal
| | - Luís Guedes-Martins
- Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, Porto, Portugal.,Departamento da Mulher e da Medicina Reprodutiva, Centro Materno Infantil do Norte, Centro Hospitalar Universitário do Porto EPE, Porto, Portugal.,Departamento da Mulher e da Medicina Reprodutiva, Centro Materno Infantil do Norte, Unidade de Investigação e Formação, Porto, Portugal.,Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Porto, Portugal
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A mathematical model of maternal vascular growth and remodeling and changes in maternal hemodynamics in uncomplicated pregnancy. Biomech Model Mechanobiol 2022; 21:647-669. [PMID: 35112224 DOI: 10.1007/s10237-021-01555-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2021] [Accepted: 12/26/2021] [Indexed: 11/02/2022]
Abstract
The maternal vasculature undergoes tremendous growth and remodeling (G&R) that enables a > 15-fold increase in blood flow through the uterine vasculature from conception to term. Hemodynamic metrics (e.g., uterine artery pulsatility index, UA-PI) are useful for the prognosis of pregnancy complications; however, improved characterization of the maternal hemodynamics is necessary to improve prognosis. The goal of this paper is to develop a mathematical framework to characterize maternal vascular G&R and hemodynamics in uncomplicated human pregnancies. A validated 1D model of the human vascular tree from the literature was adapted and inlet blood flow waveforms at the ascending aorta at 4 week increments from 0 to 40 weeks of gestation were prescribed. Peripheral resistances of each terminal vessel were adjusted to achieve target flow rates and mean arterial pressure at each gestational age. Vessel growth was governed by wall shear stress (and axial lengthening in uterine vessels), and changes in vessel distensibility were related to vessel growth. Uterine artery velocity waveforms generated from this model closely resembled ultrasound results from the literature. The literature UA-PI values changed significantly across gestation, increasing in the first month of gestation, then dramatically decreasing from 4 to 20 weeks. Our results captured well the time-course of vessel geometry, material properties, and UA-PI. This 1D fluid-G&R model captured the salient hemodynamic features across a broad range of clinical reports and across gestation for uncomplicated human pregnancy. While results capture available data well, this study highlights significant gaps in available data required to better understand vascular remodeling in pregnancy.
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Adekanmi AJ, Roberts A, Morhason-Bello IO, Adeyinka AO. Utilization of Uterine and Umbilical Artery Doppler in the Second and Third Trimesters to Predict Adverse Pregnancy Outcomes: A Nigerian Experience. WOMEN'S HEALTH REPORTS 2022; 3:256-266. [PMID: 35262064 PMCID: PMC8896215 DOI: 10.1089/whr.2021.0058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Accepted: 01/03/2022] [Indexed: 11/04/2022]
Abstract
Objective: To assess the utility of uterine and umbilical artery Doppler in the second and third-trimester in predicting adverse pregnancy outcomes. Methodology: In a prospective longitudinal study, the demographic, clinical, Doppler ultrasound parameters of the uterine and umbilical arteries of 84 consecutive women attending the antenatal clinic at 22–24 weeks and 116 women at 30–34 weeks gestation and pregnancy outcomes were documented and analyzed. Results: Pregnant women with adverse pregnancy outcomes had significantly higher second-trimester mean uterine systolic/diastolic (S/D) ratio (p = 0.001), pulsatility index (PI; p = 0.003), umbilical artery S/D (p = 0.016), and resistivity index (RI; p = 0.041) as well as higher third-trimester uterine S/D and PI. While pregnancies with adverse fetal outcomes showed significantly higher uterine artery S/D and PI at the second trimester, third-trimester uterine showed higher S/D, RI, and PI and umbilical artery PI than in women with normal fetal outcomes. The combination of uterine PI and early diastolic notch were predictors of maternal outcomes and correctly predicted 73% (p < 0.001) in the second trimester. By the third trimester, the uterine PI alone was the best predictor and accurately predicted about 62% of maternal outcomes (p = 0.028). In addition, the second-trimester uterine S/D and early diastolic notch and uterine PI in the third trimester correctly predicted 79% and 78% of fetal outcomes, respectively. Conclusion: Among unselected pregnant women population, the second-trimester Doppler parameters are better predictors of maternal adverse pregnancy outcomes, while adverse fetal outcome prediction by uterine and umbilical Doppler at the second- and the third-trimester parameters are comparable.
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Affiliation(s)
- Ademola J. Adekanmi
- Department of Radiology, College of Medicine, University of Ibadan, Ibadan, Nigeria
- Institute of Cardiovascular Diseases, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Adebola Roberts
- Department of Obstetrics and Gynaecology, and College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Imran O. Morhason-Bello
- Department of Obstetrics and Gynaecology, and College of Medicine, University of Ibadan, Ibadan, Nigeria
- Institute of Medical Research and Advanced Training, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | - Abiodun O. Adeyinka
- Department of Radiology, College of Medicine, University of Ibadan, Ibadan, Nigeria
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11
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Konwar R, Basumatari B, Dutta M, Mahanta P, Saikia A, Uk R. Role of Doppler Waveforms in Pregnancy-Induced Hypertension and Its Correlation With Perinatal Outcome. Cureus 2021; 13:e18888. [PMID: 34820216 PMCID: PMC8601394 DOI: 10.7759/cureus.18888] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/19/2021] [Indexed: 11/24/2022] Open
Abstract
Objectives The present study aims to measure the role of Doppler waveforms in pregnancy-induced hypertension (PIH) and its relationship with the perinatal outcome. Methods We have studied 50 pregnant women with PIH with gestational age (GA) 30-40 weeks for Umbilical Artery (UmA), Middle Cerebral Artery (MCA) and Uterine Artery (UtA) Doppler waveforms. Comparison between the various Doppler indices, i.e., Pulsatility Index (PI), Resistive Index (RI) and S/D ratio, with the severity of the disease and the perinatal outcomes were evaluated using appropriate statistical tests considering a threshold value of p-value <0.05 as significant. The Statistical Package for the Social Sciences (SPSS) version-16 (SPSS Inc, Chicago, USA) and MedCalc software (MedCalc Software Ltd, Ostend, Belgium) were used for data analysis. Results Half (50%) of the cases attributed to the 26 to 30 years age group were at 38 to 40 weeks of gestation. Out of the 50 patients, 68% were primigravida, and 74% had severe PIH. Mean UmA PI, mean MCA PI, mean MCA RI, and mean Cerebro Placental Ratio (CPR) were differed significantly among mild and severe PIH patients (p-value<0.05). Perinatal outcomes in 33 (66%) cases were adverse. The abnormal UmA RI, MCA RI, MCA PI, MCA S/D were significantly linked with poor pregnancy outcomes (p-value <0.05). PIH cases with the presence of early diastolic notch of UtA (p-value <0.01), abnormal PI CPR (p-value <0.001) and S/D CPR (p-value <0.003) were observed to have more adverse outcomes. PI CPR had the highest sensitivity (84.8%), and the existence of early diastolic notch of UtA and MCA-PI were most specific in diagnosing adverse perinatal outcomes. Conclusion CPR-PI is a valuable indicator of adverse perinatal outcomes in PIH. Doppler studies of multiple vessels may help manage high-risk pregnancies as it may provide helpful information about the fetus at risk of hypoxia and placental insufficiency.
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Affiliation(s)
- Ranjumoni Konwar
- Radiology, Fakhruddin Ali Ahmed Medical College and Hospital, Barpeta, IND
| | - Bharati Basumatari
- Radiology, Fakhruddin Ali Ahmed Medical College and Hospital, Barpeta, IND
| | | | - Putul Mahanta
- Forensic Medicine and Toxicology, Assam Medical College and Hospital, Dibrugarh, IND
| | - Ankumoni Saikia
- Community Medicine, Gauhati Medical College and Hospital, Guwahati, IND
| | - Rashmi Uk
- Radiology, Gauhati Medical College and Hospital, Guwahati, IND
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12
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Analysis of Proteomic Characteristics of Peripheral Blood in Preeclampsia and Study of Changes in Fetal Arterial Doppler Parameters Based on Magnetic Nanoparticles. COMPUTATIONAL AND MATHEMATICAL METHODS IN MEDICINE 2021; 2021:7145487. [PMID: 34765014 PMCID: PMC8577888 DOI: 10.1155/2021/7145487] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 10/19/2021] [Indexed: 11/17/2022]
Abstract
Background Traditional mass spectrometry detection methods have low detection efficiency for low-abundance proteins, thus limiting the application of proteomic analysis in the diagnosis of preeclampsia. Magnetic nanomaterials have good superparamagnetism and have obvious advantages in the field of biological separation and enrichment. Aim The objective of this study is to explore the value of superparamagnetic iron oxide nanoparticles in the proteomic analysis of preeclampsia. Materials and Methods 42 patients and 40 normal pregnant women were selected in this study for analysis. Gene Ontology enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were performed to evaluate the function of these differential proteins. Proteomic analysis was used to analyze the differential proteins. Color Doppler ultrasound technology was used to detect changes in the blood flow of the fetal umbilical artery and cerebral artery. Results 16 differential proteins in the serum of pregnant women with preeclampsia and normal pregnant women were detected. The 16 proteins are mainly related to angiogenesis and endothelial function proteins, coagulation cascade proteins, placental growth factor, and so on. Biological function analysis revealed that these proteins are mainly enriched in the nuclear factor kB (NF-κB) signaling pathway. Moreover, our data suggested that compared with the fetus in the uterus of normal pregnant women, the umbilical artery S/D, PI, and RI of the fetus in preeclampsia were greatly increased, and the cerebral artery S/D, PI, and RI were greatly decreased. Conclusion Biological function analysis revealed that 16 proteins are mainly enriched in the NF-κB signaling pathway. Compared with the normal group, the umbilical artery S/D, PI, and RI of the preeclampsia group were greatly increased, and the cerebral artery S/D, PI, and RI were all greatly reduced. Our findings provided a more comprehensive reference for us to study the mechanism of preeclampsia at the molecular level and also provide data support for the screening of relevant markers for early diagnosis of preeclampsia.
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13
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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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Shahid N, Masood M, Bano Z, Naz U, Hussain SF, Anwar A, Hashmi AA. Role of Uterine Artery Doppler Ultrasound in Predicting Pre-Eclampsia in High-Risk Women. Cureus 2021; 13:e16276. [PMID: 34377610 PMCID: PMC8349469 DOI: 10.7759/cureus.16276] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/09/2021] [Indexed: 01/07/2023] Open
Abstract
Background and objective Pre-eclampsia (PE) is a major cause of maternal morbidity and mortality. The utility of Doppler ultrasonography (U/S) in predicting PE has not been extensively explored. This study aimed to determine the role of Doppler U/S in predicting PE among high-risk women. Methodology This was a retrospective observational study conducted at the Department of Obstetrics and Gynecology of Abbasi Shaheed Hospital in Karachi, over a period of one year, from January 2019 till December 2019. A total of 325 women were initially screened for risk factors for PE. Among them, 75 women were eventually found to have risk factors for PE and hence included in the study. Uterine artery Doppler U/S was performed to evaluate uterine artery’s flow velocity waveforms. They were then used to calculate the presence of diastolic notch and resistance index (RI). At each antenatal visit, the risk factors for PE such as BP, proteinuria, and signs and symptoms were noted. Women were labeled to have PE if they developed hypertension (BP >140/90) after 20 weeks of gestation in combination with proteinuria. Results Twenty women (28%) had a normal Doppler flow of the uterine arteries. In 54 (72%) women, a unilateral/bilateral RI >0.58 was observed, and 29 women (38.7%) had a bilateral Rl >0.58. Notching of the uterine artery was also observed in 42 (26.7%, unilateral/bilateral) and in 22 (29.3%) bilaterally. Among the 75 women, BP of 140/90 mmHg along with proteinuria was observed in 56 (76.7%) cases, which were hence diagnosed as PE. Based on the cutoff of Rl and notching of the uterine artery, the overall sensitivity, specificity, and positive and negative predictive values (PPV and NPV) of Doppler U/S in predicting PE were 71.4%, 26.3%, 23.8%, and 74.1%, respectively. As far as individual Doppler U/S indices were concerned, RI >0.58 (unilateral/bilateral) was found to be most sensitive (71%), while the presence of uterine artery notch (unilateral/bilateral) was most specific in predicting PE. Conclusion Abnormal Doppler U/S has good overall sensitivity in predicting PE. Among individual Doppler indices, notching of uterine arteries had a better specificity compared to high RI.
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Affiliation(s)
- Nadia Shahid
- Obstetrics and Gynaecology, Sindh Government Hospital Liaquatabad, Karachi, PAK
| | - Mehar Masood
- Obstetrics and Gynaecology, Sindh Government Hospital Liaquatabad, Karachi, PAK
| | - Zakia Bano
- Obstetrics and Gynaecology, Liaquat College of Medicine and Dentistry, Karachi, PAK
| | - Urooj Naz
- Obstetrics and Gynaecology, Dow University of Health Sciences, Karachi, PAK
| | | | - Adnan Anwar
- Physiology, Hamdard College of Medicine and Dentistry, Karachi, PAK
| | - Atif A Hashmi
- Pathology, Liaquat National Hospital and Medical College, Karachi, PAK
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15
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Zheng D, Hou Y, Li Y, Bian Y, Khan M, Li F, Huang L, Qiao C. Long Non-coding RNA Gas5 Is Associated With Preeclampsia and Regulates Biological Behaviors of Trophoblast via MicroRNA-21. Front Genet 2020; 11:188. [PMID: 32194641 PMCID: PMC7063462 DOI: 10.3389/fgene.2020.00188] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/17/2020] [Indexed: 12/14/2022] Open
Abstract
Preeclampsia is a lethal pregnancy specific hypertensive disorder involving multisystem. Despite extensive studies to investigate the causes of preeclampsia, the pathogenesis still remains largely unknown. Long non-coding RNAs (lncRNAs) are a diverse class of non-translated RNAs which play a crucial part in various biological phenomena. Although lncRNA Growth Arrest-Specific 5 (GAS5) aberrantly expressed in multiple cancer tissues and is implicated in multiple biological processes of tumor cells, little is known about its role in preeclampsia. In this study, 40 patients with preeclampsia and 32 gestational age matched normotension pregnant women were recruited. Using quantitative real-time polymerase chain reaction (qRT-PCR), we found higher expression of GAS5 in placenta of preclamsia affected women. The level of GAS5 existed strongly in correlation with Thrombin Time indicating coagulation function and other clinical parameters by Pearson correlation analysis. Then we constructed the GAS5 lentivirus expression vectors and transfected into human trophoblast cell lines HTR-8/SVneo and JEG-3. Using in vitro cell culture studies, we found an inhibited effect of GAS5 on proliferative ability, migratory ability and invasive ability however; no effect on apoptosis was detected. Further mechanistic analysis found that GAS5 modulated microRNA-21 (miR-21) in an opposite variation tendency by qRT-PCR and rescue experiment. In addition, inhibition of GAS5 promoted the activation of PI3K/AKT signaling pathway and its downstream proteins covering MMP-9 and TP53 as evident from our qRT-PCR and western blot analyses. Thus, we suggested that GAS5 might involve in pregnancy with preeclampsia by influencing the biological functions of trophoblast cells through the regulation of miR-21 and activation of PI3K/AKT signaling pathway and its downstream targets, which may contribute to reveal the nature of preeclampsia.
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Affiliation(s)
- Dongying Zheng
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Department of Obstetrics and Gynecology, Second Affiliated Hospital of Dalian Medical University, Dalian, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
| | - Yue Hou
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
| | - Yuanyuan Li
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
| | - Yue Bian
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
| | - Muhanmmad Khan
- Department of Zoology, University of the Punjab, Lahore, Pakistan
| | - Fan Li
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
| | - Ling Huang
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
| | - Chong Qiao
- Department of Obstetrics and Gynecology, Shengjing Hospital, China Medical University, Shenyang, China.,Key Laboratory of Maternal-Fetal Medicine of Liaoning Province, Shenyang, China.,Key Laboratory of Obstetrics and Gynecology of Higher Education of Liaoning Province, Shenyang, China.,Research Center of China Medical University Birth Cohort, Shenyang, China
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