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gestational trophoblastic

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https://www.readbyqxmd.com/read/28930821/sonographic-image-of-cervix-epithelioid-trophoblastic-tumor-coexisting-with-mucinous-adenocarcinoma-in-a-postmenopausal-woman-a-case-report
#1
Yi Zhu, Guo-Nan Zhang, Rui-Bo Zhang, Yu Shi, Deng-Feng Wang, Rong He
RATIONALE: Epithelioid trophoblastic tumor (ETT) is a distinctive but rare gestational trophoblastic neoplasia (GTN) composed of chorionic-type intermediate trophoblast cells. Approximately 50% ETT arose from the uterine cervix or lower uterine segment following a previous pregnancy with vaginal bleeding. With its unusual ability to simulate an invasive epithelioid neoplasm, ETT frequently poses a diagnostic challenge, especially involving the uterine cervix. PATIENT CONCERNS: We herein report the case of a 60-year-old female with persistent vaginal bleeding and middle-level elevation of serum human chorionic gonadotropin (hCG)...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28927899/does-hormonal-contraception-during-molar-pregnancy-follow-up-influence-the-risk-and-clinical-aggressiveness-of-gestational-trophoblastic-neoplasia-after-controlling-for-risk-factors
#2
Patrícia Rangel Sobral Dantas, Izildinha Maestá, Jorge Rezende Filho, Joffre Amin Junior, Kevin M Elias, Neil Howoritz, Antonio Braga, Ross S Berkowitz
OBJECTIVE: To evaluate the influence of hormonal contraception (HC) on the development and clinical aggressiveness of gestational trophoblastic neoplasia (GTN) and the time for normalization of human chorionic gonadotropin (hCG) levels. METHODS: A retrospective cohort study was conducted with women diagnosed with molar pregnancy, followed at the Rio de Janeiro Trophoblastic Disease Center, between January 2005 and January 2015. The occurrence of postmolar GTN and the time for hCG normalization between users of HC or barrier methods (BM) during the postmolar follow-up or GTN treatment were evaluated...
September 16, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28927039/an-unexpected-invasive-hydatidiform-mole-in-a-rudimentary-uterine-horn-a-case-report
#3
Manfei Si, Peng Li, Zeng Yuan, Hui Ma, Baoxia Cui, Beihua Kong
Rudimentary horns of the uterus develop as a result of a partial non-development of one Müllerian duct, a type of congenital uterine anomaly. Pregnancy in a rudimentary horn is uncommon and the outcome tends to be poor, with the majority of cases resulting in rupture between 10 and 15 gestational weeks, with significant risk of morbidity and mortality. Regardless of the availability of imagiological procedures and the advances being made in this field, the diagnosis of this type of ectopic pregnancy often only occurs during laparotomy or laparoscopy subsequent to abdominal pain and collapse...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28924538/molecular-and-immunohistochemical-characteristics-of-complete-hydatidiform-moles
#4
K B Kubelka-Sabit, I Prodanova, D Jasar, G Bozinovski, V Filipovski, S Drakulevski, D Plaseska-Karanfilska
Molar pregnancy is a gestational trophoblastic disease that belongs to the category of precancerous lesions. On the other end of the spectrum are gestational trophoblastic neoplasms such as invasive mole, choriocarcinoma, placental site trophoblastic tumor and epithelioid trophoblastic tumor, which are considered malignant tumors. Based on defined histopathological criteria, molar pregnancy is divided into partial and complete hydatidiform mole. Especially in the case of early complete mole, the diagnosis can be quite challenging and often necessitates additional molecular or immunohistochemical methods...
June 30, 2017: Balkan Journal of Medical Genetics: BJMG
https://www.readbyqxmd.com/read/28919298/mxra5-is-decreased-in-preeclampsia-and-affects-trophoblast-cell-invasion-through-the-mapk-pathway
#5
Lan Ding, Shaocong Li, Yanshang Zhang, Junfeng Gai, Jianfang Kou
Preeclampsia causes gestational failure in a significant number of women annually. Insufficient trophoblast cell invasion plays an essential role in preeclampsia pathogenesis. Matrix-remodeling associated 5 (MXRA5) is a proteoglycan involved in adhesion and matrix remodeling. This study sought to explore the role of MXRA5 in trophoblast cell invasion. Preeclamptic villi were obtained for the delineation of MXRA5 expression. Specific MXRA5 siRNA and pcDNA3.1/MXRA5 were used to manipulate MXRA5 expression in HTR-8/SVneo...
September 14, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28912304/e-cadherin-and-zeb2-modulate-trophoblast-cells-differentiation-during-placental-development-in-pigs
#6
Linjun Hong, Kun Han, Kejia Wu, Ruize Liu, Ji Huang, Joan K Lunney, Shuhong Zhao, Mei Yu
It is one of the important events that trophoblast cells within the placental folds differentiate into two types that differ in cell shape during placental development in pigs. This study showed that all the trophoblast cells were in similar shape between Yorkshire and Chinese Meishan pigs on day 26 of gestation, thereafter, the trophoblast cells located at the top of the placental folds became high columnar while those cells at the base of the placental folds were cuboidal on day 50 of gestation. Additionally, on day 95 of gestation, all the trophoblast cells in Meishan pigs became cuboidal, but the trophoblast cells located at the top of the placental folds in Yorkshire pigs still remained columnar...
September 14, 2017: Reproduction: the Official Journal of the Society for the Study of Fertility
https://www.readbyqxmd.com/read/28903888/serum-angiogenic-and-anti-angiogenic-markers-in-pregnant-women-with-placenta-percreta
#7
Hacer Uyanıkoğlu, Adnan İncebıyık, Ahmet B Turp, Güler Çakmak, Sibel Sak, Neşe G Hilali
BACKGROUNDS: Placenta percreta (PP) is the morbidly adherent form of placental invasion abnormalities. The pathology that underlies the PP is poorly understood. AIMS: To compare the levels of circulating vascular endothelial growth factor (VEGF), placental growth factor (PlGF), and soluble fms like tyrosine kinase 1 (sFlt-1) in pregnant women with PP and control group. STUDY DESIGN: Case-control study. METHODS: Twenty two women who underwent cesarean section (CS) due to PP and 22 women who underwent CS for other obstetric reasons were included in this study...
September 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28903546/cellular-and-molecular-mechanisms-of-viral-infection-in-the-human-placenta
#8
Moises León-Juárez, Macario Martínez-Castillo, Luis Didier González-García, Addy Cecilia Helguera-Repetto, Verónica Zaga-Clavellina, Julio García-Cordero, Arturo Flores-Pliego, Alma Herrera-Salazar, Edgar Ricardo Vázquez-Martínez, Enrique Reyes-Muñoz
The placenta is a highly specialized organ that is formed during human gestation for conferring protection and generating an optimal microenvironment to maintain the equilibrium between immunological and biochemical factors for fetal development. Diverse pathogens, including viruses, can infect several cellular components of the placenta, such as trophoblasts, syncytiotrophoblasts and other hematopoietic cells. Viral infections during pregnancy have been associated with fetal malformation and pregnancy complications such as preterm labor...
September 29, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28899975/antagonism-of-eg-vegf-receptors-as-targeted-therapy-for-choriocarcinoma-progression-in-vitro-and-in-vivo
#9
Wael Traboulsi, Frederic Sergent, Houssine Boufettal, Sophie Brouillet, Rima Slim, Pascale Hoffmann, Mohammed Benlahfid, Qun Yong Zhou, Giafranco Balboni, Valentina Onnis, Pierre-Adrien Bolze, Aude Salomon, Philippe Sauthier, François Mallet, Touria Aboussaouira, Jean-Jacques Feige, Mohamed Benharouga, Nadia Alfaidy
PURPOSE: Choriocarcinoma (CC) is the most malignant gestational trophoblastic disease that often develops from complete hydatidiform moles (CHM). Neither the mechanism of CC development nor its progression is yet characterized. We have recently identified EG-VEGF as a novel key placental growth factor that controls trophoblast proliferation and invasion. EG-VEGF acts via two receptors PROKR1 and PROKR2. Here, we demonstrate that EG-VEGF receptors can be targeted for CC therapy. EXPERIMENTAL DESIGN: Three approaches were used, i) a clinical investigation comparing circulating EG-VEGF in Control (n=20) and in distinctive CHM (n=38) and CC (n=9) cohorts, ii) an in vitro study investigating EG-VEGF effects on the CC cell line JEG3, and iii) an in vivo study including the development of a novel CC mouse model, through a direct injection of JEG3-luciferase into the placenta of gravid SCID-mice...
September 12, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28899944/novel-endogenous-retrovirus-derived-transcript-expressed-in-the-bovine-placenta-is-regulated-by-wnt-signaling
#10
Toshihiro Sakurai, So Nakagawa, Hanako Bai, Rulan Bai, Kazuya Kusama, Atsushi Ideta, Yoshito Aoyagi, Kazuyuki Kaneko, Kosuke Iga, Jiro Yasuda, Takayuki Miyazawa, Kazuhiko Imakawa
Endogenous retroviruses (ERVs) are involved in placentation; perhaps the most well-known ERV s are the syncytins, actively transcribed env genes involved in cell-cell fusion and possible morphological variations. However, ERVs other than syncytins that play an important role in placental development have not been well characterized. To identify ERV genes expressed during the onset of placentation in the bovine species, we characterized the expression profiles of bovine conceptus transcripts during the peri-attachment period using RNA-seq analysis, and confirming some candidates through real-time PCR...
September 12, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28892983/transient-thyrotoxicosis-in-molar-pregnancy
#11
Samarth Virmani, Sujatha B Srinivas, Rama Bhat, Raghavendra Rao, Ranjini Kudva
Molar pregnancy is one of the components of a broader spectrum of diseases known as Gestational Trophoblastic Disease (GTD), presenting with amenorrhoea and irregular bleeding which may be rarely associated with passage of vesicles per vagina. However, it can rarely be associated with hyperthyroidism, which may be associated with clinical features of hyperthyroidism. The following is a report of a 20-year-old woman who presented with amenorrhea followed by irregular bleeding per vagina, thyromegaly and abnormal levels of thyroid hormones...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892119/prophylactic-chemotherapy-for-hydatidiform-mole-to-prevent-gestational-trophoblastic-neoplasia
#12
REVIEW
Qiuyi Wang, Jing Fu, Lina Hu, Fang Fang, Lingxia Xie, Hengxi Chen, Fan He, Taixiang Wu, Theresa A Lawrie
BACKGROUND: This is an update of the original Cochrane Review published in Cochrane Library, Issue 10, 2012.Hydatidiform mole (HM), also called a molar pregnancy, is characterised by an overgrowth of foetal chorionic tissue within the uterus. HMs may be partial (PM) or complete (CM) depending on their gross appearance, histopathology and karyotype. PMs usually have a triploid karyotype, derived from maternal and paternal origins, whereas CMs are diploid and have paternal origins only...
September 11, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28881392/on-the-road-to-replacing-invasive-testing-with-cell-based-nipt-five-clinical-cases-with-aneuploidies-microduplication-unbalanced-structural-rearrangement-or-mosaicism
#13
Else Marie Vestergaard, Ripudaman Singh, Palle Schelde, Lotte Hatt, Katarina Ravn, Rikke Christensen, Dorte Launholt Lildballe, Olav Bjørn Petersen, Niels Uldbjerg, Ida Vogel
OBJECTIVE: Trophoblastic fetal cells harvested from maternal blood have the capacity to be used for copy number analyses in a non-invasive prenatal test (cbNIPT). Potentially this will result in increased resolution for detection of subchromosomal aberrations due to high quality DNA not intermixed with maternal DNA. We present five selected clinical cases from first trimester pregnancies where cbNIPT was used to demonstrate a wide range of clinically relevant aberrations. METHOD: Blood samples were collected from high risk pregnancies in gestational week 12+1 to 12+5...
September 7, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/28877059/choriocarcinoma-in-women-analysis-of-a-case-series-with-genotyping
#14
Johanna Savage, Emily Adams, Emanuela Veras, Kathleen M Murphy, Brigitte M Ronnett
Choriocarcinoma is an uncommon malignant neoplasm, which can be either gestational or nongestational in origin. Distinction of these subtypes has prognostic and therapeutic implications. Twenty-two tumors were genotyped using polymerase chain reaction amplification of 15 short tandem repeat loci and the amelogenin locus (XY determination). DNA patterns from tumor and maternal tissue, as well as villous tissue from any available prior or concurrent gestation, were compared, to determine gestational versus nongestational nature (containing vs...
September 4, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28868163/new-insights-into-the-vitamin-d-requirements-during-pregnancy
#15
REVIEW
Bruce W Hollis, Carol L Wagner
Pregnancy represents a dynamic period with physical and physiological changes in both the mother and her developing fetus. The dramatic 2-3 fold increase in the active hormone 1,25(OH)2D concentrations during the early weeks of pregnancy despite minimal increased calcium demands during that time of gestation and which are sustained throughout pregnancy in both the mother and fetus suggests an immunomodulatory role in preventing fetal rejection by the mother. While there have been numerous observational studies that support the premise of vitamin D's role in maintaining maternal and fetal well-being, until recently, there have been few randomized clinical trials with vitamin D supplementation...
2017: Bone Research
https://www.readbyqxmd.com/read/28864019/glyburide-treatment-in-gestational-diabetes-is-associated-with-increased-placental-glucose-transporter-1-expression-and-higher-birth-weight
#16
Paula Díaz, Kris Genelyn Dimasuay, Lindsey Koele-Schmidt, Brian Jang, Linda A Barbour, Thomas Jansson, Theresa L Powell
Use of glyburide in gestational diabetes (GDM) has raised concerns about fetal and neonatal side effects, including increased birth weight. Placental nutrient transport is a key determinant of fetal growth, however the effect of glyburide on placental nutrient transporters is largely unknown. We hypothesized that glyburide treatment in GDM pregnancies is associated with increased expression of nutrient transporters in the syncytiotrophoblast plasma membranes. We collected placentas from GDM pregnancies who delivered at term and were treated with either diet modification (n = 15) or glyburide (n = 8)...
September 2017: Placenta
https://www.readbyqxmd.com/read/28864008/temporal-and-spatial-expression-of-glyceraldehyde-3-phosphate-dehydrogenase-gapdh-in-the-mouse-placenta
#17
Sarah Min, Bryony V Natale, David R C Natale
Glucose metabolism in trophoblast cells is essential to provide the required energy for the development and function of the placenta. Glyceraldehyde 3-phosphate dehydrogenase (Gapdh), a key enzyme in the glycolysis pathway has been considered ubiquitously expressed in cells. There is, however, a growing body of evidence suggesting that Gapdh has many functions in pathways unrelated to glucose metabolism. In the present study, we show that GAPDH expression and sub-cellular localization changes through gestation in the mouse placenta...
September 2017: Placenta
https://www.readbyqxmd.com/read/28858979/mir-195-modulates-oxidative-stress-induced-apoptosis-and-mitochondrial-energy-production-in-human-trophoblasts-via-flavin-adenine-dinucleotide-dependent-oxidoreductase-domain-containing-protein-1-and-pyruvate-dehydrogenase-phosphatase-regulatory-subunit
#18
Hao Wang, Lanmei Zhang, Xuejiang Guo, Yang Bai, Yu-Xia Li, Jiahao Sha, Chun Peng, Yan-Ling Wang, Ming Liu
OBJECTIVE: Preeclampsia is a severe pregnancy-specific syndrome defined as newly onset hypertension and proteinuria. Abnormal placental development has been generally accepted as the initial cause of the disorder. Recently, miR-195 was identified as one of the downregulated small RNAs in preeclamptic placentas. METHODS: The potential targets of miR-195 in human trophoblast cells were screened by isobaric tags for relative and absolute quantification-based mass spectrum analysis...
August 30, 2017: Journal of Hypertension
https://www.readbyqxmd.com/read/28857251/hospital-admission-for-hyperemesis-gravidarum-in-women-at-increased-risk-of-spontaneous-preterm-birth
#19
Ira Kleine, Ana Da Silva, Wafaa Ahmed, Frida Forya, Sara M Whitten, Anna L David, Catherine P James
BACKGROUND: Progesterone administration prevents spontaneous preterm birth (sPTB) in women at increased risk. Progesterone concentration is lower in women with subsequent sPTB. Conversely, high concentrations of progesterone are implicated in the pathogenesis of hyperemesis gravidarum (HG). We hypothesized that women at increased risk of sPTB or spontaneous late miscarriage would be less likely to have a diagnosis of HG. To explore this hypothesis, we compared the incidence of HG in women at increased risk of sPTB and women with no identifiable risk factors...
August 30, 2017: Birth
https://www.readbyqxmd.com/read/28840513/fertility-sparing-strategies-in-patients-affected-by-placental-site-trophoblastic-tumor
#20
REVIEW
Benito Chiofalo, Vittorio Palmara, Antonio Simone Laganà, Onofrio Triolo, Salvatore Giovanni Vitale, Francesca Conway, Giuseppe Santoro
Placental site trophoblastic tumor (PSTT) is the least common and the most ambiguous gestational trophoblastic tumor. Presentation of PSTT may occur in the course of gestation or from 1 week to 14 years after a normal or an abnormal pregnancy (mole, ectopic pregnancy, abortion). The indicators of aggressive behavior for this tumor are not well established. Due to the rarity of this disease that usually affects women of childbearing potential, we aimed to review the current literature, to identify risk factors and the best conservative therapeutic choices among the cases described...
August 24, 2017: Current Treatment Options in Oncology
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