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https://www.readbyqxmd.com/read/28635985/experiences-of-women-with-gestational-trophoblastic-neoplasia-treated-with-high-dose-chemotherapy-and-stem-cell-transplantation-a-qualitative-study
#1
Kam Singh, Clare Warnock, Jane Ireson, Sarah Strickland, Delia Short, Michael J Seckl, Barry W Hancock
PURPOSE/OBJECTIVES: To explore the experiences of women with gestational trophoblastic neoplasia during and after treatment to understand their perspectives, priorities, and concerns.
. RESEARCH APPROACH: A descriptive, exploratory study using in-depth semistructured interviews.
. SETTING: All interviews were conducted in a quiet, designated room at Weston Park Hospital in Sheffield, South Yorkshire.
. PARTICIPANTS: Women with gestational trophoblastic neoplasia who had received stem cell transplantation from 2003 to 2013...
May 1, 2017: Oncology Nursing Forum
https://www.readbyqxmd.com/read/28623972/placentation-in-the-colugos-cynocephalus-volans-and-galeopterus-variegatus-dermoptera-and-the-transition-from-labyrinthine-to-villous-placentation-in-primates
#2
A M Carter, A M Mess
INTRODUCTION: Phylogenetics and genomics place colugos as the sister group to primates. Therefore their placentation is of interest in an evolutionary perspective. Previous accounts are fragmentary, not readily accessible and sometimes contradictory. METHODS: We have examined archival material covering the early development of fetal membranes and placenta, the fate of the yolk sac and definitive placentation. RESULTS: Initially the trophoblast extended over a rather broad but shallow area, enclosing maternal blood spaces...
July 2017: Placenta
https://www.readbyqxmd.com/read/28623968/oxygen-and-tissue-culture-affect-placental-gene-expression
#3
O Brew, M H F Sullivan
INTRODUCTION: Placental explant culture is an important model for studying placental development and functions. We investigated the differences in placental gene expression in response to tissue culture, atmospheric and physiologic oxygen concentrations. METHODS: Placental explants were collected from normal term (38-39 weeks of gestation) placentae with no previous uterine contractile activity. Placental transcriptomic expressions were evaluated with GeneChip(®) Human Genome U133 Plus 2...
July 2017: Placenta
https://www.readbyqxmd.com/read/28614227/case-report-of-pulmonary-epithelial-trophoblastic-tumor-in-a-young-female-patient
#4
Lijun Jiang, Hongfei Xu, Yuan Lu, Weidong Li, Chengfei Zheng
INTRODUCTION: An epithelial trophoblastic tumor (ETT) is a kind of rare trophoblastic tumor that may have the correlation with a prior gestational event. Especially, the one that appears in the lung is extremely rare. CASE SUMMARY: Here, we present a 24-year-old female patient with the chief complain of vaginal bleeding for more than 1 month, who was found to have a large mass (7.5 × 4.5 cm) in the right lower lobe, and it was finally confirmed as lung ETT by postoperative pathology after a successful radical resection of the pulmonary lobe...
June 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28607326/morphological-features-and-immunohistochemical-expression-of-p57kip2-in-early-molar-pregnancies-and-their-relations-to-the-progression-to-persistent-trophoblastic-disease
#5
Marwa Khashaba, Mohammad Arafa, Eman Elsalkh, Reda Hemida, Wagiha Kandil
Background: Although the morphological features characteristic of products of conception specimens including molar pregnancies are well described, substantial histopathological similarities are observed between the different entities, especially in cases of early pregnancies. Furthermore, there are no current solid criteria that could predict cases with progression to persistent gestational trophoblastic disease. In this study, we aimed to determine the most specific histopathological and immunohistochemical features required for accurate diagnosis that can reliably predict the clinical behavior...
June 12, 2017: Journal of Pathology and Translational Medicine
https://www.readbyqxmd.com/read/28599899/the-placenta-accreta-spectrum-pathophysiology-and-evidence-based-anatomy-for-prenatal-ultrasound-imaging
#6
REVIEW
Eric Jauniaux, Sally Collins, Graham J Burton
The placenta accreta spectrum (PAS) is a complex obstetric complication associated with a high maternal morbidity. It is a relatively new disorder of placentation, and is the consequence of damage to the endometrium-myometrial interface of the uterine wall. When first described 80 years ago, it mainly occurred after manual removal of the placenta, uterine curettage or endometritis. Superficial damage leads primarily to an abnormally adherent placenta, and is diagnosed as the complete or partial absence of the decidua on histology...
June 6, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28591340/uterine-artery-doppler-flow-velocimetry-parameters-for-predicting-gestational-trophoblastic-neoplasia-after-complete-hydatidiform-mole-a-prospective-cohort-study
#7
Flavia Tarabini Castellani Asmar, Antonio Rodrigues Braga-Neto, Jorge de Rezende-Filho, Juliana Marques Simões Villas-Boas, Rafael Cortés Charry, Izildinha Maesta
OBJECTIVES: Doppler ultrasonography can be used to assess neoangiogenesis, a characteristic feature of postmolar gestational trophoblastic neoplasia. However, there is limited information on whether uterine artery Doppler flow velocimetry parameters can predict gestational trophoblastic neoplasia following a complete hydatidiform mole. The purpose of this study was as follows: 1) to compare uterine blood flow before and after complete mole evacuation between women who developed postmolar gestational trophoblastic neoplasia and those who achieved spontaneous remission, 2) to assess the usefulness of uterine Doppler parameters as predictors of postmolar gestational trophoblastic neoplasia and to determine the best parameters and cutoff values for predicting postmolar gestational trophoblastic neoplasia...
May 2017: Clinics
https://www.readbyqxmd.com/read/28590345/two-cases-of-epithelioid-trophoblastic-tumors-in-postmenopausal-women
#8
Adriano Rodríguez-Trujillo, María José Martínez-Serrano, Adela Saco, Aureli Torné
OBJECTIVE: Epithelioid trophoblastic tumor is a rare gestational trophoblastic neoplasm usually presenting in women of reproductive age, with a history of a prior gestational event. Its presentation in postmenopausal women is extremely rare. Immunohistochemical staining is a helpful aid to distinguish epithelioid trophoblastic tumor from other gestational trophoblastic neoplasms. Correct diagnosis is crucial for clinical management that can vary according to the type of gestational trophoblastic neoplasm...
June 5, 2017: Menopause: the Journal of the North American Menopause Society
https://www.readbyqxmd.com/read/28588270/maternal-placental-fetal-biodistribution-of-multimodal-polymeric-nanoparticles-in-a-pregnant-rat-model-in-mid-and-late-gestation
#9
Diwei Ho, Joan W Leong, Rachael C Crew, Marck Norret, Michael J House, Peter J Mark, Brendan J Waddell, K Swaminathan Iyer, Jeffrey A Keelan
Multimodal polymeric nanoparticles have many exciting diagnostic and therapeutic applications, yet their uptake and passage by the placenta, and applications in the treatment of pregnancy complications have not been thoroughly investigated. In this work, the maternal-fetal-placental biodistribution of anionic and cationic multimodal poly(glycidyl methacrylate) (PGMA) nanoparticles in pregnant rats at mid (ED10) and late (ED20) gestation was examined. Fluorescently-labelled and superparamagnetic PGMA nanoparticles functionalized with/without poly(ethyleneimine) (PEI) were administered to pregnant rats at a clinically-relevant dose and biodistribution and tissue uptake assessed...
June 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28579623/reference-curve-for-the-mean-uterine-artery-pulsatility-index-in-singleton-pregnancies
#10
Alexander Weichert, Andreas Hagen, Michael Tchirikov, Ilka B Fuchs, Wolfgang Henrich, Michael Entezami
INTRODUCTION: Doppler sonography of the uterine artery (UA) is done to monitor pregnancies, because the detected flow patterns are useful to draw inferences about possible disorders of trophoblast invasion. Increased resistance in the UA is associated with an increased risk of preeclampsia and/or intrauterine growth restriction (IUGR) and perinatal mortality. In the absence of standardized figures, the normal ranges of the various available reference curves sometimes differ quite substantially from one another...
May 2017: Geburtshilfe und Frauenheilkunde
https://www.readbyqxmd.com/read/28571514/obstetric-ultrasound-aids-prompt-referral-of-gestational-trophoblastic-disease-in-marginalized-populations-on-the-thailand-myanmar-border
#11
Kathryn McGregor, Aung Myat Min, Noaeni Karunkonkowit, Suporn Keereechareon, Mary Ellen Tyrosvoutis, Nay Win Tun, Marcus J Rijken, Gabie Hoogenboom, Machteld Boel, Kesinee Chotivanich, François Nosten, Rose McGready
BACKGROUND: The use of obstetric ultrasound in the diagnosis of gestational trophoblastic disease (GTD) in high-income settings is well established, leading to prompt management and high survival rates. Evidence from low-income settings suggests ultrasound is essential in identifying complicated pregnancies, but with limited studies reviewing specific conditions including GTD. OBJECTIVE: The aim of this study is to review the role of ultrasound in diagnosis and management of GTD in a marginalized population on the Thailand-Myanmar border...
2017: Global Health Action
https://www.readbyqxmd.com/read/28567058/implementation-and-monitoring-of-a-gestational-trophoblastic-disease-management-program-in-a-tertiary-hospital-in-morocco-opportunities-and-challenges
#12
Imane Khachani, Mohamed Hassan Alami, Rachid Bezad
Objective. Gestational Trophoblastic Disease (GTD) management requires clear guidelines for diagnosis, treatment, and follow-up. Unequal management skills among practitioners, inadequate treatment, irregular surveillance, and drop-out are common in resource-limited settings and can lead to life-threatening complications and morbidities. To address these challenges, we implemented a GTD Management Program at the National Center for Reproductive Health in Rabat, Morocco. Methods and Program Description. In-depth review of management protocols was carried out, and concise guidelines were developed, with targeted training for physicians...
2017: Obstetrics and Gynecology International
https://www.readbyqxmd.com/read/28548328/epithelioid-trophoblastic-tumor-of-the-uterus-a-case-report-with-radiologic-pathologic-correlation
#13
Ayumi Ohya, Kayoko Higuchi, Hisashi Shimojo, Yasunari Fujinaga, Masumi Kadoya, Shigeki Shiohara
Herein, we report a rare case of an epithelioid trophoblastic tumor of the uterus with radiologic-pathologic correlation in a 56-year-old postmenopausal woman. On T2-weighted magnetic resonance (MR) imaging, the tumor appeared as a hypointense irregular mass compared with the surrounding myometrium of the uterine corpus and encircled the cavity of the lower uterine segment. On dynamic contrast-enhanced MR images, the tumor appeared as a hypovascular mass and an inhomogeneously hyperintense mass in the delayed phase...
May 26, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/28546716/complete-molar-pregnancy-in-postmenopausal-woman
#14
Ahmed Samy El-Agwany, Helmy Abdelsattar Rady, Hassan Mansour Hegab
Gestational trophoblastic disease spectrum ranges from benign hydatidiform mole to trophoblastic malignancy (placental site trophoblastic tumor and choriocarcinoma). Benign gestational trophoblastic disease occurs in women of reproductive age and is extremely rare in postmenopausal women. We describe a case of complete vesicular mole in a 55-year-old postmenopausal woman complaining of postmenopausal bleeding. To our knowledge, our case represents one of the rare descriptions in the world literature of a benign complete hydatidiform mole in a postmenopausal woman...
June 2017: Indian Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28545138/sumo-4-a-novel-functional-candidate-in-the-human-placental-protein-sumoylation-machinery
#15
Dora Baczyk, Melanie C Audette, Sascha Drewlo, Khrystyna Levytska, John C Kingdom
BACKGROUND: Small ubiquitin-like modifiers (SUMOs) conjugate to proteins post-translationally, thereby affecting target localization, activity and stability. Functional SUMO family members identified in the human placenta include SUMO-1 to SUMO-3, which are elevated in pre-eclampsia. Whether the fourth isoform, SUMO-4, plays a role in placental development and function remains unknown. OBJECTIVES: We tested the hypothesis that SUMO-4 is expressed in the human placenta and demonstrates altered SUMOylation in pre-eclamptic pregnancies...
2017: PloS One
https://www.readbyqxmd.com/read/28542142/deletion-of-pdcd5-in-mice-led-to-the-deficiency-of-placenta-development-and-embryonic-lethality
#16
Ge Li, Chentong Xu, Xin Lin, Liujing Qu, Dan Xia, Beiqi Hongdu, Yan Xia, Xiaokun Wang, Yaxin Lou, Qihua He, Dalong Ma, Yingyu Chen
Programmed cell death 5 (PDCD5) is an apoptosis promoter molecule that displays multiple biological activities. However, the function of PDCD5 in vivo has not yet been investigated. Here, we generated a Pdcd5 knockout mouse model to study the physiological role of PDCD5 in vivo. Knockout of the Pdcd5 gene resulted in embryonic lethality at mid-gestation. Histopathological analysis revealed dysplasia in both the LZs and JZs in Pdcd5(-/-) placentas with defects in spongiotrophoblasts and trophoblast giant cells...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28539280/-expression-of-fabp7-in-mouse-placenta-tissue-and-human-trophoblast-htr-8-svneo-cells
#17
Liu Tian, Hui-Qi Liao, Hui Yang, Ni Ma, Chang-Jun Zhang, Hong-Lu Diao
OBJECTIVE: To detect the expression of FABP7 in the placenta of pregnant mice and in HTR-8/Svneo cells. METHODS: Real-time PCR and immunofluorescence were used to detect FABP7 mRNA and protein expressions in the uterine and placental tissue of pregnant mice at different days of gestation. FABP7 expression was also detected in cultured HTR-8/Svneo cells using immunofluorescence assay. The mice were treated with E2, P4 or their combination for 6 and 24 h and Fabp7 mRNA level in the uterus was detected with real-time PCR...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28536048/cell-free-dna-inflammation-and-the-initiation-of%C3%A2-spontaneous-term-labor
#18
Christina A Herrera, Jay Stoerker, John Carlquist, Gregory J Stoddard, Marc Jackson, Sean Esplin, Nancy C Rose
BACKGROUND: Hypomethylated cell-free DNA from senescent placental trophoblasts may be involved in the activation of the inflammatory cascade to initiate labor. OBJECTIVE: To determine the changes in cell-free DNA concentrations, the methylation ratio, and inflammatory markers between women in labor at term vs women without labor. STUDY DESIGN: In this prospective cohort study, eligible participants carried a nonanomalous singleton fetus. Women with major medical comorbidity, preterm labor, progesterone use, aneuploidy, infectious disease, vaginal bleeding, abdominal trauma, or invasive procedures during the pregnancy were excluded...
May 20, 2017: American Journal of Obstetrics and Gynecology
https://www.readbyqxmd.com/read/28534963/n-acetylglucosaminyltransferase-iva-promotes-invasion-of-choriocarcinoma
#19
Kimihiro Nishino, Eiko Yamamoto, Kaoru Niimi, Yoko Sekiya, Yoriko Yamashita, Fumitaka Kikkawa
Gestational trophoblastic neoplasia (GTN) results from the malignant transformation of placental trophoblasts which secrete human chorionic gonadotropin (hCG) as do normal placenta or hydatidiform mole. N-acetylglucosaminyltransferase IV (GnT-IV) is a glycosyltransferase which catalyses the formation of β1,4GlcNAc branches on the mannose core of N-glycans. Previous studies reported that β1,4GlcNAc branches on hCG were detected in GTN but not in normal pregnancy or hydatidiform mole. The aim of the present study was to understand the role of GnT-IVa in choriocarcinoma and find the target proteins for GnT-IVa glycosylation which contribute to the malignancy of choriocarcinoma...
May 23, 2017: Oncology Reports
https://www.readbyqxmd.com/read/28533844/utility-of-first-trimester-obstetric-ultrasonography-before-13-weeks-of-gestation-a-retrospective-study
#20
Felix Uduma Uduma, Anelkan Abaslattai, Dianabasi Udoete Eduwem, Morgan Ekanem, Philip Chinedu Okere
INTRODUCTION: First trimester pregnancy is defined as twelve weeks after the last menstrual period. Ultrasonography has revolutionized validation and management of first trimester pregnancies. The aim was to analyze ultrasonographic findings of first trimester pregnancies in University of Uyo teaching hospital (UUTH), Uyo, Nigeria. METHODS: The departmental ultrasonographic records of pregnant women who were referred to Radiology department of UUTH, Uyo, Nigeria...
2017: Pan African Medical Journal
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