keyword
MENU ▼
Read by QxMD icon Read
search

Trophoblasts

keyword
https://www.readbyqxmd.com/read/29044511/second-trimester-levels-of-fetoplacental-hormones-among-women-with-placenta-accreta-spectrum-disorders
#1
Marina Pekar-Zlotin, Yaakov Melcer, Ron Maymon, Eric Jauniaux
Human chorionic gonadotropin (hCG) and its free β-subunit (β-hCG) are exclusively synthesized by the villous trophoblast. α-Fetoprotein (AFP) is synthesized by the secondary yolk sac and fetal liver. Levels of both hormones differ between women with placenta accreta spectrum (PAS) disorders and those with non-accreta previa.(1,2) Second-trimester maternal serum levels of AFP are increased,(1) and first-trimester serum β-hCG is decreased in women with PAS,(2) compared with those with non-accreta placenta previa...
October 17, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/29044433/pregnancy-induced-changes-in-metabolome-and-proteome-in-ovine-uterine-flushings
#2
Jared J Romero, Bethany E Liebig, Corey D Broeckling, Jessica E Prenni, Thomas R Hansen
Mass spectrometry (MS) approaches were used herein to identify metabolites and proteins in uterine flushings (UF) that may contribute to nourishing the conceptus. Ovine uteri collected on Day 12 of the estrous cycle (n = 5 ewes exposed to vasectomized ram) or Days 12 (n = 4), 14 (n = 5), or 16 (n = 5) of pregnancy (bred with fertile ram) were flushed using buffered saline. Metabolites were extracted using 80% methanol and profiled using ultraperformance liquid chromatography (LC) tandem mass spectrometry. The proteome was examined by digestion with trypsin, followed by the analysis of peptides with LC-MS/MS...
August 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29039998/fn1-fos-and-itga5-induce-preeclampsia-abnormal-expression-and-methylation
#3
Mei Zhao, Lin Li, Xiumei Yang, Jianying Cui, Hong Li
OBJECTIVE: As a frequent hypertensive disorder in pregnancy, preeclampsia causes 15% of all preterm deliveries. This study aims to understand its mechanism via analyzing gene expression and methylation data. METHODS: Human gene expression microarray data (GSE73374) and corresponding DNA methylation microarray data (GSE73375) of preeclamptic placental tissues (n = 19) and normotensive placental tissues (n = 17) were obtained from the Gene Expression Omnibus. Differentially expressed genes (DEGs), differentially methylated regions (DMRs) and CpG islands (DMIs) were identified and compared...
October 17, 2017: Hypertension in Pregnancy
https://www.readbyqxmd.com/read/29039178/-potential-clinical-application-of-kisspeptin-in-reproductive-endocrinology
#4
Yanling Fu, Yimin Zhu
Gonadotropin-releasing hormone (GnRH) plays an important role in the process of reproduction. Studies have shown that a family of peptides Kisspeptin can act on GnRH-related neurons, stimulating the secretion of GnRH, and activating the hypothalamic-pituitary-gonadal axis. Both animal experiments and clinical studies have shown that exogenous administration of Kisspeptin is able to induce physiological GnRH release in healthy individuals and those with endocrine-disorders, which brings great hope for treatment of reproductive endocrine diseases...
May 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/29039177/-the-involvement-of-galectin-1-in-implantation-and-pregnancy-maintenance-at-the-maternal-fetal-interface
#5
Minyue Tang, Yimin Zhu
As a member of galectins family, galectin-1(Gal-1)is widely expressed in tissues and cells, and participates in a variety of physiological and pathological processes, such as cell adhesion, proliferation, apoptosis and inflammatory reaction. Recently, it has been found that Gal-1 is highly expressed at the maternal-fetal interface and plays important roles in trophoblast cell proliferation, differentiation and invasion, endometrial receptivity, placental angiogenesis and maternal-fetal immune tolerance. In this review, we outline the expression of Gal-1 at the maternal-fetal interface and the involvement of Gal-1 in embryo implantation and pregnancy maintenance, to provide novel insights for the early diagnosis, prognostic assessment and treatment of early pregnancy loss and pregnancy-related diseases...
May 25, 2017: Zhejiang da Xue Xue Bao. Yi Xue Ban, Journal of Zhejiang University. Medical Sciences
https://www.readbyqxmd.com/read/29037859/chorionic-gonadotropin-%C3%AE-modulates-epithelial-mesenchymal-transition-in-colorectal-carcinoma-metastasis
#6
Futoshi Kawamata, Hiroshi Nishihara, Shigenori Homma, Yasutaka Kato, Masumi Tsuda, Yuji Konishi, Lei Wang, Shinji Kohsaka, Cheng Liu, Tadashi Yoshida, Mishie Tanino, Shinya Tanaka, Hideki Kawamura, Toshiya Kamiyama, Akinobu Taketomi
Ectopic production of free beta human chorionic gonadotropin (hCGβ) has been associated with aggressive behavior in non-trophoblastic tumors. hCGβ shares common evolutionary sequences with transforming growth factor-β (TGFβ), which represents a major driving force of epithelial to mesenchymal transition (EMT). In this study, we examined the biological roles of hCGβ during EMT and its clinical significance in colorectal cancer (CRC) progression. Eighty CRC specimens and 54 preoperative serum samples were analyzed...
October 13, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29037102/complete-hydatidiform-moles-are-composed-of-paternal-chromosomes-and-maternal-mitochondria
#7
Zijun Pan, Hirokazu Usui, Asuka Sato, Makio Shozu
Mitochondrial DNA (mtDNA) and genomic DNA are produced in separate subcellular compartments. Human mtDNA is transmitted via maternal transmission in general. Complete hydatidiform moles (CHMs) represent major trophoblastic diseases that are cytogenetically exceptional because the chromosomal genomic DNA is derived only from sperm cells, making them strikingly different from normal concepti. However, few reports have described the mtDNA-transmission pattern in hydatidiform moles. To evaluate mtDNA transmission in androgenetic CHMs, we compared the sequences of hypervariable regions in 16 trios sets of mtDNAs from maternal, paternal, and villous samples of androgenetic CHMs diagnosed by short tandem repeat-polymorphism analysis...
October 17, 2017: Mitochondrial DNA. Part A. DNA Mapping, Sequencing, and Analysis
https://www.readbyqxmd.com/read/29036184/proinflammatory-response-of-canine-trophoblasts-to-brucella-canis-infection
#8
Andrea G Fernández, M Soledad Hielpos, Mariana C Ferrero, Carlos A Fossati, Pablo C Baldi
Brucella canis infection is an important cause of late-term abortion in pregnant bitches. The pathophysiological mechanisms leading to B. canis-induced abortion are unknown, but heavily infected trophoblasts are consistently observed. As trophoblasts responses to other pathogens contribute to placental inflammation leading to abortion, the aim of the present study was to characterize the cytokine response of canine trophoblasts to B. canis infection. To achieve this, trophoblasts isolated from term placenta of healthy female dogs were infected with B...
2017: PloS One
https://www.readbyqxmd.com/read/29034092/choosing-the-uterine-preservation-surgery-for-placental-polyp-determined-by-blood-flow-evaluation-a-retrospective-cohort-study
#9
Sumire Sorano, Tatsuya Fukami, Maki Goto, Sakiko Imaoka, Miho Ando, Yoko To, Sumie Nakamura, Hiroko Yamamoto, Fuyuki Eguchi, Hiroshi Tsujioka
BACKGROUND: A placental polyp is an intrauterine polypoid mass or pedunculated mass occurring from residual trophoblastic tissue following abortion, cesarean section or vaginal delivery. Recently uterine preservation surgery represented by transcervical resection (TCR) has been performed for placental polyps. However TCR without intravascular intervention, including uterine artery embolization (UAE) may cause profound bleeding which necessitate emergency laparotomy. METHODS: Seventeen cases of placental polyp were retrospectively examined...
November 2017: Annals of Medicine and Surgery
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
#10
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/29030540/hypoxia-induced-activation-of-jak-stat3-signaling-pathway-promotes-trophoblast-cell-viability-and-angiogenesis-in-preeclampsia
#11
Chengfang Xu, Xuejiao Li, Peiling Guo, Jia Wang
BACKGROUND To explore the effect of hypoxic preconditioning on the JAK/STAT3 signaling pathway and its effect on trophoblast cell viability and angiogenesis in preeclampsia (PE). MATERIAL AND METHODS Placental tissues from normal pregnant women and PE patients were collected to detect the expression levels of JAK and STAT3. Trophoblast cells separated from the PE patients were assigned to 4 groups. The expression levels of phosphorylated p-JAK and p-STAT3 were measured by Western blot. Cell viability, colony-forming ability, and cell apoptosis were assessed...
October 14, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/29028431/interferon-tau-regulates-cytokine-production-and-cellular-function-in-human-trophoblast-cell-line
#12
Nao Tanikawa, Kotomi Seno, Ryouka Kawahara-Miki, Koji Kimura, Shuichi Matsuyama, Hisataka Iwata, Takehito Kuwayama, Koumei Shirasuna
Type I interferons (IFN), including IFN-beta (IFNB), activate multiple STAT signaling to drive various biological responses. Another type I IFN, IFN-tau (IFNT), secreted by ruminant embryonic trophoblast cells, has multiple functions with low cytotoxicity. Here, we examined the effects of IFNT on human trophoblast cell functions. First, we performed next-generation sequencing and demonstrated that IFNT-dependent changes in the human Sw.71 trophoblast cell line are partly mediated by proinflammatory as well as IFN signaling...
October 2017: Journal of Interferon & Cytokine Research
https://www.readbyqxmd.com/read/29027529/-twin-pregnancy-with-complete-hydatidiform-mole
#13
I N Voloshchuk, I V Barinova, N I Kondrikov, R A Barto
The paper describes a case of twin pregnancy with complete hydatidiform mole (CHM). According to the data available in the literature, the concurrence of CHM with a normal placenta and a viable fetus occurs in 1 per 20,000-100,000 pregnancies, requires a differential diagnosis with partial hydatidiform mole and placental mesenchymal dysplasia, and is characterized by a high rate of complications. In this concurrence, the frequency of persistent trophoblastic disease is as high as 50%. In this case, the pregnancy ended in a spontaneous abortion at 16-17 weeks of pregnancy...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/29025533/negative-%C3%AE-hcg-and-molar-pregnancy-the-hook-effect
#14
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
https://www.readbyqxmd.com/read/29025247/molecular-and-histological-characteristics-of-early-triploid-and-partial-molar-pregnancies
#15
Katerina Kubelka-Sabit, Dzengis Jasar, Vanja Filipovski, Gorgi Bozinovski, Dijana Plaseska-Karanfilska
Molar pregnancy has the highest incidence of all gestational trophoblastic diseases. This is a heterogeneous group of diseases, composed of precancerous lesions and gestational trophoblastic tumours. The hydatidiform mole is characterised by varying degrees of proliferation of syncytiotrophoblastic and cytotrophoblastic cells and stromal oedema. Based on established morphological and cytogenetic criteria, molar pregnancy is divided into partial and complete. The risk of persistent trophoblastic disease is higher in complete moles compared with partial moles...
2017: Polish Journal of Pathology: Official Journal of the Polish Society of Pathologists
https://www.readbyqxmd.com/read/29024947/human-trophoblast-derived-hydrogen-sulfide-stimulates-placental-artery-endothelial-cell-angiogenesis
#16
Dongbao Chen, Lin Feng, Jennifer K Hodges, Thomas J Lechuga, Honghai Zhang
Endogenous hydrogen sulfide (H2S), mainly synthesized by cystathionine β-synthase (CBS) and cystathionineγ-lyase (CTH), has been implicated in regulating placental angiogenesis; however, the underlying mechanisms are unknown. This study was to test a hypothesis that trophoblasts synthesize H2S to promote placental angiogenesis. Human choriocarcinoma-derived BeWo cells expressed both CBS and CTH proteins while the first trimester villous trophoblast-originated HTR-8/SVneo cells expressed CTH protein only. The H2S producing ability of BeWo cells was significantly inhibited by either inhibitors of CBS (CHH) or CTH (BCA) and that in HTR-8/SVneo cells was inhibited by CHH only...
August 28, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/29023592/polymer-based-precipitation-preserves-biological-activities-of-extracellular-vesicles-from-an-endometrial-cell-line
#17
Ziru Niu, Ronald T K Pang, Weimin Liu, Qian Li, Ranran Cheng, William S B Yeung
Extracellular vesicles (EVs) are membrane-bound vesicles released by cells and act as media for transfer of proteins, small RNAs and mRNAs to distant sites. They can be isolated by different methods. However, the biological activities of the purified EVs have seldom been studied. In this study, we compared the use of ultracentrifugation (UC), ultra-filtration (UF), polymer-based precipitation (PBP), and PBP with size-based purification (PBP+SP) for isolation of EVs from human endometrial cells and mouse uterine luminal fluid (ULF)...
2017: PloS One
https://www.readbyqxmd.com/read/29022922/rankl-mediated-harmonious-dialogue-between-fetus-and-mother-guarantees-smooth-gestation-by-inducing-decidual-m2-macrophage-polarization
#18
Yu-Han Meng, Wen-Jie Zhou, Li-Ping Jin, Li-Bing Liu, Kai-Kai Chang, Jie Mei, Hui Li, Jian Wang, Da-Jin Li, Ming-Qing Li
Decidual macrophages (dMϕ) contribute to maternal-fetal tolerance. However, the mechanism of dMϕ differentiation during pregnancy is still largely unknown. Here, we report that receptor activator for nuclear factor-κ B ligand (RANKL), secreted by human embryonic trophoblasts and maternal decidual stromal cells (DSCs), polarizes dMϕ toward a M2 phenotype. This polarization is mediated through activation of Akt/signal transducer and activator of transcription 6 (STAT6) signaling, which is associated with the upregulation of histone H3 lysine-27 demethylase Jmjd3 and IRF4 in dMϕ...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29022920/the-lncrna-tug1-modulates-proliferation-in-trophoblast-cells-via-epigenetic-suppression-of-rnd3
#19
Yetao Xu, Zhiping Ge, Erbao Zhang, Qing Zuo, Shiyun Huang, Nana Yang, Dan Wu, Yuanyuan Zhang, Yanzi Chen, Haoqin Xu, Huan Huang, Zhiyan Jiang, Lizhou Sun
Due to limited treatment options, pre-eclampsia (PE) is associated with fetal perinatal and maternal morbidity and mortality. During the causes of PE, failure of uterine spiral artery remodeling which might be related to functioning abnormally of trophoblast cells, result in the occurrence and progression of PE. Recently, abnormal expression of long non-coding RNAs (lncRNAs), as imperative regulators involved in human diseases progression (included PE), which has been indicated by increasing evidence. In this research, we found that TUG1, a lncRNA, was markedly reduced in placental samples from patients with PE...
October 12, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/29022890/elevated-microrna-34a-contributes-to-trophoblast-cell-apoptosis-in-preeclampsia-by-targeting-bcl-2
#20
M Guo, X Zhao, X Yuan, P Li
Preeclampsia (PE) is one of the most common pregnancy-specific pathologic complications, and is characterised by onset of hypertension and proteinuria. Placental trophoblast cell apoptosis is generally accepted as a major cause of PE. However, the details of the mechanism underlying the condition remain unclear. Here, we aimed to investigate a possible association between microRNA (miR)-34a and human trophoblast cell apoptosis during PE. We evaluated miR-34a expression in placentas from patients with PE compared with those from healthy pregnant individuals...
October 12, 2017: Journal of Human Hypertension
keyword
keyword
49356
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"