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gestational trophoblastic

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https://www.readbyqxmd.com/read/29161966/altered-downstream-target-gene-expression-of-the-placental-vitamin-d-receptor-in-human-idiopathic-fetal-growth-restriction
#1
Thy Ph Nguyen, Hannah Ej Yong, Tejasvy Chollangi, Shaun P Brennecke, Susan J Fisher, Euan M Wallace, Peter R Ebeling, Padma Murthi
Fetal growth restriction (FGR) affects up to 5% of pregnancies and is associated with significant perinatal complications. Maternal deficiency of vitamin D, a secosteroid hormone, is common in FGR-affected pregnancies. We recently demonstrated that decreased expression of the vitamin D receptor (VDR) in idiopathic FGR placentae could impair trophoblast growth. As strict regulation of cell-cycle genes in trophoblast cells is critical for optimal feto-placental growth, we hypothesised that pathologically decreased placental VDR contributes to aberrant regulation of cell-cycle genes...
November 22, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29154408/chemokine-c-c-motif-ligand-25-expressed-by-trophoblast-cells-and-leukocytes-bearing-its-receptor-ccr9-an-alliance-during-embryo-implantation
#2
Rodrigo Barbano Weingrill, Mara S Hoshida, Ciro Dresch Martinhago, Simone Correa-Silva, Elaine Cardoso, Patrícia Palmeira, Claudio Romero Farias Marinho, Estela Bevilacqua
PROBLEM: We hypothesized that trophoblast expression of Ccl25 attracts a specific leukocyte cell population to the implantation site for local regulation. METHOD OF STUDY: Mice blastocysts, ectoplacental cones, and decidua at gestational days 3.5-7.5 were evaluated for Ccl25 and Ccr9 expressions. Peripheral availability and characterization of Ccr9+ leukocytes were determined by flow cytometry. Leukocyte chemotaxis was assessed in the presence of Ccl25 recombinant protein and embryos using antisense oligomers (ODNs) to Ccl25 and Ccr9 neutralizing antibody...
November 20, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29149431/seom-clinical-guidelines-in-gestational-trophoblastic-disease-2017
#3
A Santaballa, Y García, A Herrero, N Laínez, J Fuentes, A De Juan, V Rodriguez Freixinós, J Aparicio, A Casado, E García-Martinez
Gestational trophoblastic disease (GTD) is a rare but curable disease. Recent improvements in diagnosis and molecular biology have resulted in changes in staging and treatment. These guidelines provide evidence-based recommendation on how to manage GTD.
November 17, 2017: Clinical & Translational Oncology
https://www.readbyqxmd.com/read/29145065/gestational-differences-in-murine-placenta-glycolytic-metabolism-and-pregnancy-parameters
#4
Renee E Albers, Christopher A Waker, Chanel Keoni, Melissa R Kaufman, Michael A Bottomley, Sarah Min, David R Natale, Thomas L Brown
The placenta is a complex and essential organ composed largely of fetal-derived cells, including several different trophoblast subtypes that work in unison to support nutrient transport to the fetus during pregnancy. Abnormal placental development can lead to pregnancy-associated disorders that often involve metabolic dysfunction. The scope of dysregulated metabolism during placental development may not be fully representative of the in vivo state in defined culture systems, such as cell lines or isolated primary cells...
November 4, 2017: Theriogenology
https://www.readbyqxmd.com/read/29143993/how-to-measure-size-of-tubal-ectopic-pregnancy-on-ultrasound-scan
#5
K Rajah, V Goodhart, K P Zamora, T Amin, E Jauniaux, D Jurkovic
OBJECTIVE: To identify the preoperative ultrasound measurements for assessing the size of tubal ectopic pregnancy which correlate best with the findings at surgery. METHODS: We conducted a prospective study of all women with a conclusive transvaginal ultrasound diagnosis of tubal ectopic pregnancy over a 10-month period. In each case, we measured the total size of the ectopic pregnancy by placing the calipers on the outer edges of the visible trophoblastic tissue...
November 16, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29136193/early-first-trimester-uteroplacental-flow-and-the-progressive-disintegration-of-spiral-artery-plugs-new-insights-from-contrast-enhanced-ultrasound-and-tissue-histopathology
#6
V H J Roberts, T K Morgan, P Bednarek, M Morita, G J Burton, J O Lo, A E Frias
STUDY QUESTION: Does the use of a vascular contrast agent facilitate earlier detection of maternal flow to the placental intervillous space (IVS) in the first trimester of pregnancy? SUMMARY ANSWER: Microvascular filling of the IVS was demonstrated by contrast-enhanced ultrasound from 6 weeks of gestation onwards, earlier than previously believed. WHAT IS KNOWN ALREADY: During placental establishment and remodeling of maternal spiral arteries, endovascular trophoblast cells invade and accumulate in the lumen of these vessels to form 'trophoblast plugs'...
November 10, 2017: Human Reproduction
https://www.readbyqxmd.com/read/29121880/comparison-of-different-therapeutic-strategies-for-complete-hydatidiform-mole-in-women-at-least-40%C3%A2-years-old-a-retrospective-cohort-study
#7
Peng Zhao, Qinqing Chen, Weiguo Lu
BACKGROUND: There are three main therapeutic strategies, namely expectant management (dilation and curettage only), prophylactic chemotherapy and prophylactic total hysterectomy for treating older women with complete hydatidiform mole (CHM). However, the scientific community has so far, not unanimously accepted the above-mentioned methods. The objective of this study was to evaluate the effectiveness of these therapeutic strategies in preventing post-molar gestational trophoblastic neoplasia (GTN) pertaining to patients with CHM who were at least 40 years old...
November 9, 2017: BMC Cancer
https://www.readbyqxmd.com/read/29113877/-maternal-deaths-due-to-gestational-trophoblastic-diseases-results-from-the-french-confidential-enquiry-into-maternal-deaths-2010-2012
#8
M Dreyfus
Gestational trophoblastic diseases (GTD) correspond to several entities which all have a common pattern: hypersecretion of human chorionic gondotrophin by trophoblastic hyperplasia. Between 2010 and 2012, there were 4 maternal deaths due to GTD (choriocarcinoma). The ratio of maternal death caused by GTD was 0,16/100,000 living births which was similar to the rate from the 2007-2009 period. These deaths represented 1.6% from the whole maternal mortality and 3.3% of the direct maternal mortality. These four deaths occurred after delivery and the diagnosis of GTD was made between 60 and 180 days in the postpartum period...
November 4, 2017: Gynecologie, Obstetrique, Fertilite & Senologie
https://www.readbyqxmd.com/read/29109863/pattern-of-gynaecological-malignancies-in-south-western-region-of-pakistan-an-overview-of-12-years
#9
Hina Manzoor, Hamida Naheed, Khushnaseeb Ahmad, Shehla Iftikhar, Muhammad Asif, Jamila Shuja, Neelam Sultan, Irfan Ali, Syed Inayatullah, Yasir Hayat Khan
Gynaecological malignancies contribute significantly to cancer burden and have a higher rate of mortality and morbidity. The aim of this retrospective study was to determine the pattern of gynaecological malignancies identified between January, 2000 and December, 2011, at the Centre for Nuclear Medicine and Radiotherapy (CENAR). At CENAR 5,072 female patients were registered with different malignancies, of which 632 cases were gynaecological malignancies. Ovarian cancer (47%) was the most common gynaecological malignancy, followed by cervical cancer (29%), uterine cancer (14%), vulvar and vaginal cancer (6%), and gestational trophoblastic neoplasm (4%)...
November 2017: Biomedical Reports
https://www.readbyqxmd.com/read/29108636/dynamic-expression-of-tet1-tet2-and-tet3-dioxygenases-in-mouse-and-human-placentas-throughout-gestation
#10
Joanna Rakoczy, Nisha Padmanabhan, Ada M Krzak, Jens Kieckbusch, Tereza Cindrova-Davies, Erica D Watson
INTRODUCTION: Throughout pregnancy, the placenta dynamically changes as trophoblast progenitors differentiate into mature trophoblast cell subtypes. This process is in part controlled by epigenetic regulation of DNA methylation leading to the inactivation of 'progenitor cell' genes and the activation of 'differentiation' genes. TET methylcytosine dioxygenases convert 5-methylcytosine (5-mC) to 5-hydroxymethylcytosine (5-hmC) during DNA demethylation events. Here, we determine the spatiotemporal expression of TET1, TET2, and TET3 in specific trophoblast cell populations of mouse and human placentas throughout gestation, and consider their role in trophoblast cell differentiation and function...
November 2017: Placenta
https://www.readbyqxmd.com/read/29108468/senescence-and-telomere-homeostasis-might-be-involved-in-placenta-percreta-preliminary-investigation
#11
Keren Tzadikevitch Geffen, Hilah Gal, Ifat Vainer, Ofer Markovitch, Aliza Amiel, Valery Krizhanovsky, Tal Biron-Shental
OBJECTIVE: Placenta percreta (PP) is an abnormal condition of trophoblast maturation and terminal differentiation through the uterine wall. We opted to study telomere homeostasis and senescence expression in trophoblasts from PP, the most severe subgroup of placenta accreta. STUDY DESIGN: Paraffin-embedded placental biopsies from pregnancies with percreta and normal placentation, matched by gestational age at delivery, were assessed for telomere length, aggregates, and senescence-associated heterochromatin foci using quantitative fluorescence in situ hybridization...
January 1, 2017: Reproductive Sciences
https://www.readbyqxmd.com/read/29101942/gestational-trophoblastic-disease
#12
J Kenneth Schoolmeester, Lori A Erickson
No abstract text is available yet for this article.
November 2017: Mayo Clinic Proceedings
https://www.readbyqxmd.com/read/29101413/the-gestational-power-of-mast-cells-in-the-injured-tissue
#13
Maria-Angeles Aller, Natalia Arias, Vicente Martínez, Patri Vergara, Jaime Arias
The inflammatory response expressed after wound healing would be the recapitulation of systemic extra-embryonic functions, which would focus on the interstitium of the injured tissue. In the injured tissue, mast cells, provided for a great functional heterogeneity, could play the leading role in the re-expression of extra-embryonic functions, i.e., coelomic-amniotic and trophoblastic-vitelline. Moreover, mast cells would favor the production of a gastrulation-like process, which in certain tissues and organs would induce the regeneration of the injured tissue...
November 3, 2017: Inflammation Research: Official Journal of the European Histamine Research Society ... [et Al.]
https://www.readbyqxmd.com/read/29092742/effectiveness-and-toxicity-of-first-line-methotrexate-chemotherapy-in-low-risk-postmolar-gestational-trophoblastic-neoplasia-the-new-england-trophoblastic-disease-center-experience
#14
Izildinha Maestá, Roni Nitecki, Neil S Horowitz, Donald P Goldstein, Marjory de Freitas Segalla Moreira, Kevin M Elias, Ross S Berkowitz
OBJECTIVES: To assess the outcomes and toxicity of first-line methotrexate (MTX) chemotherapy in low-risk postmolar gestational trophoblastic neoplasia (GTN) patients receiving 8-day methotrexate or one-day methotrexate infusion regimens. METHODS: This retrospective cohort study was conducted at the New England Trophoblastic Disease Center (NETDC), between 1974 and 2014, and included 325 patients with FIGO-defined low-risk postmolar GTN receiving first-line 8-day MTX/folinic acid (FA) or one-day MTX infusion and FA...
October 29, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/29072060/risk-factors-for-hydatidiform-mole-is-husband%C3%A2-s-job-a-major-risk-factor
#15
Hourieh Shamshiri Milani, Morteza Abdollahi, Sara Torbati, Taha Asbaghi, Eznollah Azargashb
Background: The hydatidiform mole (HM) is a precancerous placenta considered as a gestational trophoblastic disease (GTD). It may convert to more invasive forms of gestational trophoblastic neoplasia (GTN), endangering women’s health by more severe complications. Most GTN cases originate from HM, which is associated with uterine bleeding, preeclampsia and thyroid problems. Its etiology has not been adequately explored, but some risk factors have been reported. The aim of the present study was to assess any relationships between molar pregnancy and factors including mothers’ and husbands’ occupations...
October 26, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/29069923/comparison-of-two-assays-measuring-human-chorionic-gonadotrophin-serum-concentrations-in-pregnancy-termination-and-trophoblastic-or-non-trophoblastic-tumours
#16
Fleur Wolff, Christine Gervy, Béatrice Gulbis, Frédéric Cotton
BACKGROUND: Differences in human chorionic gonadotrophin (hCG) results provided by the commercial immunoassays reflect the heterogeneity of antibodies and the use of suboptimal standards. As a consequence, the principal forms of hCG and metabolites are differentially detected and the hCG tests are not suited for the same clinical applications. Conflicting results are available in the literature regarding which hCG variants are recognized by the Roche Elecsys hCG + β test. The aim of our study was to compare the hCG concentrations provided by the Siemens Immulite 2000 test and the Roche test as well as to assess the concordance between both assays...
October 25, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29066252/abca1-affects-placental-function-via-trophoblast-and-macrophage
#17
Xie Chengmao, Lin Li, Long Yan, Yang Jie, Wang Xiaoju, Cai Xiaohui, Guan Huimin
AIMS: To study the potential impact of ABCA1 on the function of the placenta. MAIN METHODS: Trophoblasts and macrophages were isolated from the placenta with enzymatic digestion; Immunofluorescence assay was used to detect the location of ABCA1 in cells; RT-PCR and Western-blot were used to detect the expression of ABCA1; The cholesterol efflux assays of primary trophoblasts was detected by Amplex Red cholesterol assay kit (Invitrogen);Inflammatory factor secretion from primary macrophages was detected by Elisa...
October 21, 2017: Life Sciences
https://www.readbyqxmd.com/read/29052024/multimodality-imaging-in-secondary-postpartum-or-postabortion-hemorrhage-retained-products-of-conception-and-related-conditions
#18
REVIEW
Yuko Iraha, Masahiro Okada, Masafumi Toguchi, Kimei Azama, Keiko Mekaru, Tadatsugu Kinjo, Wataru Kudaka, Yoichi Aoki, Hajime Aoyama, Akiko Matsuzaki, Sadayuki Murayama
Secondary postpartum hemorrhage (PPH) and postabortion hemorrhage are rare complications. Retained products of conception (RPOC) is among the most common causes of both secondary PPH and postabortion hemorrhage. Other less common causes of secondary PPH are uterine vascular abnormalities such as arteriovenous malformations and pseudoaneurysms. These are usually related to a history of a procedure such as dilation and curettage or cesarean delivery. Subinvolution of the placental site is an idiopathic cause of secondary PPH; this condition may be underrecognized and therefore could have a higher incidence than currently reported...
October 19, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/29033610/a-pilot-randomized-controlled-clinical-trial-of-second-uterine-curettage-versus-usual-care-to-determine-the-effect-of-re-curettage-on-patients-need-for-chemotherapy-among-women-with-low-risk-nonmetastatic-gestational-trophoblastic-neoplasm-in-urmia-iran
#19
Haleh Ayatollahi, Zahra Yekta, Elnaz Afsari
OBJECTIVE: The objective of this study was to determine if second curettage was associated with a decreased need for the number of chemotherapy treatments compared to usual care. METHODS: A pilot randomized controlled clinical trial was designed at Motahhari Referral Hospital in 2014. Fifty-two patients with low risk, nonmetastatic gestational trophoblastic neoplasm were assigned randomly to two arms. The interventional arm included a repeat uterine curettage, and the control group received standard care (chemotherapy)...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/29025533/negative-%C3%AE-hcg-and-molar-pregnancy-the-hook-effect
#20
Isabel Lobo Antunes, Joana Curado, Ana Quintas, Alcides Pereira
Molar pregnancy, included in gestational trophoblastic disease, is a benign pathology with ability to metastasize, usually occurring with excessively high βhCG levels. Clinical scenario is usually a woman in extremes of reproductive age presenting with amenorrhoea, pain and vaginal blood loss; signs derived from high βhCG levels may be present (hyperthyroidism, hyperemesis). Diagnosis is based on a positive pregnancy test - usually a qualitative urinary test. The limitation of this test results from its inability to become positive in presence of markedly high levels of βhCG, saturating the antigens used - known as the 'hook effect'...
September 29, 2017: Acta Médica Portuguesa
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