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recurrent miscarriages

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https://www.readbyqxmd.com/read/28516786/association-of-angiogenic-cytokines-vegf-a-and-vegf-c-and-clinical-characteristic-in-women-with-unexplained-recurrent-miscarriage
#1
A Bagheri, P Kumar, A Kamath, P Rao
INTRODUCTION: Recurrent miscarriage (RM) defined as 2 or more spontaneous miscarriage before 20 weeks of gestation, affects at least 1 % of couples trying to conceive. In over 50 % of cases, the cause of the loss of pregnancy remains unexplained. Reduced expression of Angiogenic factors such as: vascular endothelial growth factor (VEGF-A) and VEGF-C has been linked with spontaneous miscarriage, likely due to defective foetal and placental angiogenesis. AIMS AND OBJECTIVES: To investigate the relationships between serum level of VEGF-A and VEGF-C with clinical characteristic in women with URM and compare to pregnant and healthy women...
2017: Bratislavské Lekárske Listy
https://www.readbyqxmd.com/read/28513460/the-role-of-oxidative-stress-in-female-infertility-and-in-vitro-fertilization
#2
Joanna Wojsiat, Jerzy Korczyński, Marta Borowiecka, Halina Małgorzata Żbikowska
Infertility problem involves many couples of reproductive age. It has been estimated that in Poland 0.7-1.0 million pairs require treatment, while for more than half of them assisted reproduction is the only recommended and effective method. Infertility affects 13 to 15% of the world's population. A major concern is the age-related decline in female fertility even more that often a decision about pregnancy is taken at later age. Recent studies show that increased production of reactive oxygen species is an important factor in etiopathogenesis of pregnancy and affects female reproduction...
May 9, 2017: Postȩpy Higieny i Medycyny Doświadczalnej
https://www.readbyqxmd.com/read/28508414/cervical-cerclage-placed-before-14%C3%A2-weeks-gestation-in-women-with-one-previous-midtrimester-loss-a-population-based-cohort-study
#3
Margaret E Harpham, Charles S Algert, Christine L Roberts, Jane B Ford, Antonia W Shand
BACKGROUND: Cervical cerclage is used in an attempt to reduce recurrence risk of preterm birth, but evidence for use is limited. AIMS: To compare pregnancy outcomes among women with a single previous midtrimester delivery when managed with or without a cervical cerclage. MATERIALS AND METHODS: Population-based cohort study of all women in New South Wales, Australia with a singleton pregnancy ending in birth/miscarriage ≥14 and <28 weeks, between 2003 and 2011...
May 16, 2017: Australian & New Zealand Journal of Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28501365/why-natural-killer-cells-are-not-enough-a-further-understanding-of-killer-immunoglobulin-like-receptor-and-human-leukocyte-antigen
#4
REVIEW
Diana Alecsandru, Juan A García-Velasco
The immune system's role in recurrent reproductive failure is a controversial issue in assisted reproduction. Most studies into immune system implication in reproduction have focused on finding markers of peripheral blood and less on the uterine environment. Peripheral blood natural killer cells have become an "immune study core" for women with recurrent miscarriage or recurrent implantation failure, based on the mistaken notion that they cause reproductive failure by killing or "rejecting" the embryo. Maternal-fetal tolerance begins at the uterine level, so successful adaptation to the fetus occurs after a complicated process...
May 10, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28494269/medical-conditions-associated-with-recurrent-miscarriage-is-bmi-the-tip-of-the-iceberg
#5
Mushi J Matjila, Anne Hoffman, Zephne M van der Spuy
BACKGROUND: In contrast to sporadic miscarriage, recurrent miscarriage (RM) is a rare entity which affects 1% of couples attempting conception. It is distressing for couples and healthcare professionals as the aetiology is unclear with limited treatment options. Apart from anti-phospholipid syndrome (APS), the strength of associations between RM and commonly investigated endocrine, autoimmune, thrombophilic and uterine structural abnormalities remains uncertain and variable. OBJECTIVES: To assess the prevalence of commonly investigated medical conditions associated with RM...
May 3, 2017: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28466568/physiological-and-pathological-angiogenesis-in-endometrium-at-the-time-of-embryo-implantation
#6
Xiaoyan Chen, Gene Chi Wai Man, Yingyu Liu, Fangrong Wu, Jin Huang, Tin Chiu Li, Chi Chiu Wang
Embryo establishes contact with the endometrium during implantation. Proper endometrial vascular development and maintenance at the time of embryo implantation is crucial for successful pregnancy. Vascular development at the maternal-embryo interface can be regulated by various cell types, of which uterine natural killer (uNK) cells play an important role. Abnormal angiogenesis and uNK cell number/function may lead to reproductive failure, particularly in women with recurrent miscarriage (RM) and women with recurrent implantation failure (RIF) after IVF-ET treatment, which are the important clinical hurdles in reproductive medicine to overcome...
May 3, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/28463907/placenta-previa-increta-in-an-unscarred-uterus-with-marked-thinning-of-myometrium-in-the-entire-uterus-in-a-patient-with-systemic-lupus-erythematosus
#7
Namita Mittal, Maylene Pineda, Boon Lim, Elizabeth Carey
A 36-yr-old woman, G5P2, who had a background history of systemic lupus erythematosus (SLE) was found to have placenta previa and placenta accreta on second trimester ultrasound scan. She had previous 3 spontaneous miscarriages but there was no history of gynecologic interventions. Apart from SLE, there was no other explanation for her recurrent miscarriage. The patient had ongoing thrombocytopenia in this pregnancy. The patient was taken for elective lower uterine segment cesarean section at 36 wk+5 d gestation...
April 29, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28451773/correlation-between-three-dimensional-power-doppler-and-morphometric-measurement-of-endometrial-vascularity-at-the-time-of-embryo-implantation-in-women-with-unexplained-recurrent-miscarriage
#8
Xiaoyan Chen, Sotirios H Saravelos, Yingyu Liu, Jin Huang, Chi Chiu Wang, Tin Chiu Li
Power Doppler in combination with three-dimensional (3D-PD) ultrasonography has been used as a noninvasive tool to evaluate the vascularity. However, it is unclear whether 3D-PD can accurately reflect endometrial vascularization and replace the invasive endometrial biopsy. This study aims to investigate the correlation between 3D-PD and micro vessel morphometric measurement of endometrial vascularity. Twenty-five women with unexplained recurrent miscarriage were recruited for 3D-PD and endometrial biopsy on precisely day LH + 7...
April 27, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28449286/full-dilatation-cesarean-section-a-risk-factor-for-recurrent-second-trimester-loss-and-preterm-birth
#9
Helena A Watson, Jenny Carter, Anna L David, Paul T Seed, Andrew H Shennan
INTRODUCTION: A previous cesarean section at full dilatation (FDCS) is a risk factor for preterm birth. To provide insight on the risk to subsequent pregnancies, this cohort study compares the outcomes of pregnant women with a previous preterm birth associated either with a prior FDCS or a prior term vaginal delivery. MATERIAL AND METHODS: We identified women attending two inner-city preterm surveillance clinics (Guy's and St Thomas Hospital and University College London Hospital, London, UK) who had a spontaneous late miscarriage (14(+0) -23(+6) weeks) or sPTB (<37weeks) following a term pregnancy, and then a further pregnancy for analysis...
April 27, 2017: Acta Obstetricia et Gynecologica Scandinavica
https://www.readbyqxmd.com/read/28441552/natural-killer-cell-activity-in-women-with-recurrent-miscarriage-etiology-and-pregnancy-outcome
#10
Yasuhiko Ebina, Yukari Nishino, Masashi Deguchi, Yoko Maesawa, Yuki Nakashima, Hideto Yamada
This study aimed to evaluate whether natural killer (NK) cell activity was associated with the etiology of recurrent miscarriage (RM), and to evaluate the predictive value of NK cell activity for outcomes of following pregnancies in women with RM. Peripheral NK cell activity was measured in 160 non-pregnant women with a history of two or more miscarriages. This activity was compared according to the etiology of RM and to pregnancy outcomes in women who became pregnant. NK cell activity in women with unexplained RM was significantly higher than that in those with known etiologies of RM...
April 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28432284/treatment-with-recombinant-factor-xiii-tretten-in-a-pregnant-woman-with-factor-xiii-deficiency
#11
Nizar Abdel-Samad
BACKGROUND Factor XIII deficiency is associated with recurrent miscarriages in women. CASE REPORT In this report, we present a patient with factor XIII deficiency and some comorbidities who had had previous miscarriages. She began treatment with factor XIII subunit A (XIII-A) replacement treatment Recombinant factor XIII (Tretten) at a dose of 2500 units monthly and was able, for the first time, to carry a pregnancy almost to term. Although she experienced some obstetrical complications, she delivered a healthy baby...
April 22, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28420494/molecular-regulation-and-role-of-angiogenesis-in-reproduction
#12
REVIEW
Momchil Rizov, Petya Andreeva, Ivanka Dimova
Angiogenesis is an essential process for proper functioning of the female reproductive system and for successful pregnancy realization. The multitude of factors required for physiological angiogenesis and the complexity of regulation of their temporal-spatial activities contribute to aberrations in human fertilization and pregnancy outcomes. In this study, we reviewed the current knowledge of the temporal expression patterns, functions, and regulatory mechanisms of angiogenic factors during foliculogenesis, early implantation/placentation and embryo development, as well as recurrent spontaneous abortions...
April 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28417627/a-retrospective-study-on-the-association-between-thyroid-autoantibodies-with-%C3%AE-2-glycoprotein-and-cardiolipin-antibodies-in-recurrent-miscarriage
#13
Regina Promberger, Katharina Walch, Rudolf Seemann, Sophie Pils, Johannes Ott
Etiologic factors for recurrent miscarriage (RM) include autoimmune diseases, the most frequently antiphospholipid syndrome and thyroiditis. Some women who suffer from RM might also have an altered immune system. We aimed to evaluate possible associations between anti-thyroid and anti-phospholipid antibodies in women with RM. In a retrospective case series 1 on 156 women with RM, major outcome parameters were antibodies against cardiolipin, β2-glycoprotein I, thyreoperoxidase (TPO-Ab), and thyroglobulin (TG-Ab)...
February 2017: Iranian Journal of Allergy, Asthma, and Immunology
https://www.readbyqxmd.com/read/28412850/assessment-of-hysteroscopic-role-in-management-of-women-with-recurrent-pregnancy-loss
#14
M Elsokkary, M Elshourbagy, K Labib, M Ali
OBJECTIVES: To assess the hysteroscopic value in the management of intrauterine lesion in women with recurrent pregnancy loss. METHODS: This study done in Ain Shams Maternity Hospital after the approval of the research Ethics Committee, during the period between August 2014 to December 2015 where 200 non-pregnant women with a history of three or more consecutive unexplained first and second trimester miscarriages before 20 weeks were recruited from recurrent miscarriage clinic...
April 16, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/28412101/genetics-of-recurrent-miscarriage-and-fetal-loss
#15
REVIEW
M H Tur-Torres, C Garrido-Gimenez, J Alijotas-Reig
Despite years of research, miscarriage, particularly when recurrent, continues to pose a medical challenge. An embryo chromosomal error is responsible for 50-60% of recurrent cases; however, up to 30-50% remains an enigma. Successful pregnancy involves different maternal physiologic changes and certain complex interactions between the fetus and the mother by cytokines, angiogenic mediators and hormones. To date, research lines have focused on genetic and epigenetic polymorphisms related mainly to immune response and inflammatory mediators, and have yielded a significant relationship between recurrent miscarriage and immune mechanisms...
March 27, 2017: Best Practice & Research. Clinical Obstetrics & Gynaecology
https://www.readbyqxmd.com/read/28409654/olr1-and-loxin-expression-in-pbmcs-of-women-with-a-history-of-unexplained-recurrent-miscarriage-a-pilot-study
#16
Valentina Bruno, Barbara Rizzacasa, Adalgisa Pietropolli, Maria Vittoria Capogna, Renato Massoud, Carlo Ticconi, Emilio Piccione, Claudio Cortese, Giuseppe Novelli, Francesca Amati
AIMS: The aim of this study was to evaluate the expression of OLR1 and its alternative splicing isoform Loxin in unexplained recurrent miscarriage (uRM). METHODS: Sixty-three women of reproductive age were recruited and were divided into four groups: 18 pregnant and 23 non-pregnant women with uRM, and 12 pregnant and 10 non-pregnant women with physiological pregnancies. Complementary DNA derived from peripheral blood mononuclear cells (PBMCs) was analyzed by quantitative real-time PCR to evaluate the expression of OLR1 and Loxin...
April 14, 2017: Genetic Testing and Molecular Biomarkers
https://www.readbyqxmd.com/read/28404628/simultaneous-detection-of-decidual-th1-th2-and-nk1-nk2-immunophenotyping-in-unknown-recurrent-miscarriage-using-8-color-flow-cytometry-with-fsc-vt-extended-strategy
#17
Peng Dong, Xi Wen, Jia Liu, Cui-Yan Yan, Jing Yuan, Lan-Rong Luo, Qiao-Fei Hu, Jian Li
Th1/Th2 imbalance is considered as a mechanism of recurrent miscarriage. The NK1/NK2 paradigm is hypothesized to play an important role in pregnancy. However, few results showed simultaneous changes of these subsets in vivo in decidual tissues. This study aimed to detect the decidual mononuclear cells and the Th1/Th2 and NK1/NK2 paradigm simultaneously using multiparametric flow cytometry (MFC) in unexplained recurrent miscarriages (URM). Mononuclear cells were isolated from the decidual tissues of URM cases and early pregnant women...
April 12, 2017: Bioscience Reports
https://www.readbyqxmd.com/read/28396697/efficient-and-cost-effective-genetic-analysis-of-products-of-conception-and-fetal-tissues-using-a-qf-pcr-array-cgh-strategy-five-years-of-data
#18
Celia Donaghue, Nada Davies, Joo Wook Ahn, Helen Thomas, Caroline Mackie Ogilvie, Kathy Mann
BACKGROUND: Traditional testing of miscarriage products involved culture of tissue followed by G-banded chromosome analysis; this approach has a high failure rate, is labour intensive and has a resolution of around 10 Mb. G-banded chromosome analysis has been replaced by molecular techniques in some laboratories; we previously introduced a QF-PCR/MLPA testing strategy in 2007. To improve diagnostic yield and efficiency we have now updated our testing strategy to a more comprehensive QF-PCR assay followed by array CGH...
2017: Molecular Cytogenetics
https://www.readbyqxmd.com/read/28394549/the-role-of-low-molecular-weight-heparin-in-women-with-hereditary-thrombophilia-for-good-perinatal-outcome
#19
Vesna Sokol, Marina Ivanišević, Mislav Herman, Josip Đelmiš
The aim of the study was to establish the importance of low molecular weight heparin (LMWH) treatment for good pregnancy outcome in patients with hereditary thrombophilia. This retrospective study included 70 patients with inherited thrombophilia who gave birth at Zagreb University Hospital Center in the period from January 2014 to January 2015. Fifty-seven women were treated and 13 women were not treated with LMWH. Perinatal outcome was significantly better in women with hereditary thrombophilia who were treated with heparin during pregnancy as compared with women without LMWH (p=0...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28393453/novel-mechanism-of-mirna-365-regulated-trophoblast-apoptosis-in-recurrent-miscarriage
#20
Wei Zhao, Wei-Wei Shen, Xiao-Mei Cao, Wen-Yan Ding, Lin-Ping Yan, Ling-Juan Gao, Xiu-Ling Li, Tian-Ying Zhong
Clinical pregnancies increasingly end in recurrent miscarriage (RM) during the first trimester, with genetic factors shouldering the main responsibility. MicroRNAs (miRNAs) regulate gene expression in a wide array of important biological processes. We examined the potential role of dysregulated miRNAs in RM pathogenesis and trophoblast development as an approach to elucidate the molecular mechanism behind RM. miRNA profiles from clinical specimens of RM and induced abortion (IA) were compared, and several miRNAs were found to be aberrantly expressed in RM samples...
April 10, 2017: Journal of Cellular and Molecular Medicine
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