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https://www.readbyqxmd.com/read/29329377/endometrial-stem-cell-derived-g-csf-attenuates-endometrial-fibrosis-via-sonic-hedgehog-transcriptional-activator-gli2
#1
Xiaona Lin, Yanling Zhang, Yibin Pan, Shilin He, Yongdong Dai, Bingqing Zhu, Cheng Wei, Liaobing Xin, Wenzhi Xu, Chunsheng Xiang, Songying Zhang
Intrauterine adhesion (IUA) is characterized by endometrial fibrosis, which ultimately leads to menstrual abnormalities, infertility and recurrent miscarriages. The Shh/Gli2 pathway plays a critical role in tissue fibrogenesis and regeneration; Gli2 activation induces profibrogenic effects in various tissues, such as the liver and kidney. However, the role of Gli2 in endometrial fibrosis remains unknown. The purpose of this study was to test the hypothesis that activated Gli2 promotes endometrial fibrosis. Endometrial samples from moderate and severe IUA patients exhibited significantly enhanced expression of Gli2 compared with normal endometrial samples and mild IUA samples...
January 10, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29327393/pulmonary-hypertension-in-interstitial-lung-disease-limitations-of-echocardiography-compared-to-cardiac-catheterization
#2
Gregory J Keir, S John Wort, Maria Kokosi, Peter M George, Simon L F Walsh, Joseph Jacob, Laura Price, Simon Bax, Elisabetta A Renzoni, Toby M Maher, Peter MacDonald, David M Hansell, Athol U Wells
BACKGROUND AND OBJECTIVE: In interstitial lung disease (ILD), pulmonary hypertension (PH) is a major adverse prognostic determinant. Transthoracic echocardiography (TTE) is the most widely used tool when screening for PH, although discordance between TTE and right heart catheter (RHC) measured pulmonary haemodynamics is increasingly recognized. We evaluated the predictive utility of the updated European Society of Cardiology/European Respiratory Society (ESC/ERS) TTE screening recommendations against RHC testing in a large, well-characterized ILD cohort...
January 12, 2018: Respirology: Official Journal of the Asian Pacific Society of Respirology
https://www.readbyqxmd.com/read/29326109/current-recommendations-for-anticoagulant-therapy-in-patients-with-valvular-heart-disease-and-atrial-fibrillation-the-acc-aha-and-esc-eacts-guidelines-in-harmony%C3%A2-but-not-lockstep
#3
EDITORIAL
John Preston Erwin, Bernard Iung
No abstract text is available yet for this article.
January 11, 2018: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/29325362/-predicting-value-of-2014-european-guidelines-risk-prediction-model-for-sudden-cardiac-death-hcm-risk-scd-in-chinese-patients-with-hypertrophic-cardiomyopathy
#4
W X Li, L W Liu, J Wang, L Zuo, F Yang, N Kang, C H Lei
Objective: To evaluate the predicting value of the 2014 European Society of Cardiology (ESC) guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy (HCM), and to explore the predictors of adverse cardiovascular events in Chinese HCM patients. Methods: The study population consisted of a consecutive 207 HCM patients admitted in our center from October 2014 to October 2016. All patients were followed up to March 2017. The 5-year SCD probability of each patient was estimated using HCM Risk-SCD model based on electrocardiogram, echocardiography and cardiac magnetic resonance (CMR) examination results...
December 24, 2017: Zhonghua Xin Xue Guan Bing za Zhi
https://www.readbyqxmd.com/read/29325062/st-segment-elevation-myocardial-infarction-the-new-esc-guidelines
#5
Thomas F Lüscher
No abstract text is available yet for this article.
January 7, 2018: European Heart Journal
https://www.readbyqxmd.com/read/29325014/cdkn1c-p57-one-of-the-determinants-of-human-endometrial-stromal-cell-decidualization
#6
Lan Wang, Hui Yang, Linli Hu, Dan Hu, Shuxia Ma, Xuejiao Sun, Liu Jiang, Jianyuan Song, Licheng Ji, Jackson Ferdinand Masau, Hanwang Zhang, Kun Qian
Decidualization is regulated by crosstalk of progesterone and the cAMP pathway. It involves extensive reprogramming of gene expression and includes a wide range of functions. To investigate how cell cycle regulatory genes drive the human endometrial stromal cell (ESC) exit cell cycle and enter differentiation, primary cultured ESC was treated with 8-Br-cAMP and MPA and cell cycle distribution was investigated by flow cytometry. High-throughput cell cycle regulatory gene expression was also studied by microarray...
January 9, 2018: Biology of Reproduction
https://www.readbyqxmd.com/read/29324807/vegf-may-contribute-to-macrophage-recruitment-and-m2-polarization-in-the-decidua
#7
Karen C Wheeler, Manoj K Jena, Bhola S Pradhan, Neha Nayak, Subhendu Das, Chaur-Dong Hsu, David S Wheeler, Kang Chen, Nihar R Nayak
It is increasingly evident that cytokines and growth factors produced in the decidua play a pivotal role in the regulation of the local immune microenvironment and the establishment of pregnancy. One of the major growth factors produced in the decidua is vascular endothelial growth factor (VEGF), which acts not only on endothelial cells, but also on multiple other cell types, including macrophages. We sought to determine whether decidua-derived VEGF affects macrophage recruitment and polarization using human endometrial/decidual tissue samples, primary human endometrial stromal cells (ESCs), and the human monocyte cell line THP1...
2018: PloS One
https://www.readbyqxmd.com/read/29323720/tfcp2l1-safeguards-the-maintenance-of-human-embryonic-stem-cell-self-renewal
#8
Hongwei Sun, Yu You, Mengmeng Guo, Xiaohu Wang, Yan Zhang, Shoudong Ye
Tfcp2l1 is a transcription factor critical for mouse embryonic stem cell (mESC) maintenance. However, its role in human ESCs (hESCs) remains unclear. Here, we investigated the functions of Tfcp2l1 in controlling hESC activity and showed that Tfcp2l1 is functionally important in the maintenance of hESC identity. Tfcp2l1 expression is highly enriched in hESCs and dramatically decreases upon differentiation. Forced expression of Tfcp2l1 promoted hESC self-renewal. Functional analysis of the mutant forms of Tfcp2l1 revealed that both the CP2- and SAM-like domains are indispensable for Tfcp2l1 to maintain the undifferentiated state of hESCs...
January 11, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29321583/allele-specific-repression-of-sox2-through-the-long-non-coding-rna-sox2ot
#9
Tobias C Messemaker, Selina M van Leeuwen, Patrick R van den Berg, Anke E J 't Jong, Robert-Jan Palstra, Rob C Hoeben, Stefan Semrau, Harald M M Mikkers
The transcription factor Sox2 controls the fate of pluripotent stem cells and neural stem cells. This gatekeeper function requires well-regulated Sox2 levels. We postulated that Sox2 regulation is partially controlled by the Sox2 overlapping long non-coding RNA (lncRNA) gene Sox2ot. Here we show that the RNA levels of Sox2ot and Sox2 are inversely correlated during neural differentiation of mouse embryonic stem cells (ESCs). Through allele-specific enhanced transcription of Sox2ot in mouse Sox2eGFP knockin ESCs we demonstrate that increased Sox2ot transcriptional activity reduces Sox2 RNA levels in an allele-specific manner...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321579/differentiation-potential-of-pluripotent-stem-cells-correlates-to-the-level-of-chd7
#10
Takako Yamamoto, Chiemi Takenaka, Yusuke Yoda, Yasuhiro Oshima, Kenichi Kagawa, Hiroshi Miyajima, Tetsuji Sasaki, Shin Kawamata
Embryonic Stem Cells (ESC) possesses two distinct features; self-renewal and the potential to differentiate. Here we show the differentiation potential and growth rate of ESC correlates positively with the expression level of the gene encoding chromodomain helicase DNA binding protein 7 (CHD7). When ESCs are maintained in feeder-free conditions and single cell seeding, ESC KhES-1 having 4520 copies or more of CHD7 in 5 ng total RNA show differentiation potential, but this is lost when the CHD7 copy number is reduced in KhES-1 to less than 696 by alternative culture conditions...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29321513/tousled-like-kinase-1-is-a-negative-regulator-of-core-transcription-factors-in-murine-embryonic-stem-cells
#11
Jina Lee, Min Seong Kim, Su Hyung Park, Yeun Kyu Jang
Although the differentiation of pluripotent cells in embryonic stem cells (ESCs) is often associated with protein kinase-mediated signaling pathways and Tousled-like kinase 1 (Tlk1) is required for development in several species, the role of Tlk1 in ESC function remains unclear. Here, we used mouse ESCs to study the function of Tlk1 in pluripotent cells. The knockdown (KD)-based Tlk1-deficient cells showed that Tlk1 is not essential for ESC self-renewal in an undifferentiated state. However, Tlk1-KD cells formed irregularly shaped embryoid bodies and induced resistance to differentiation cues, indicating their failure to differentiate into an embryoid body...
January 10, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29320922/co-emergence-of-specialized-endothelial-cells-from-embryonic-stem-cells
#12
Nicole Madfis, Zhiqiang Lin, Ashwath Kumar, Simone A Douglas, Manu O Platt, Yuhong Fan, Kara E McCloskey
A well-formed and robust vasculature is critical to the health of most organ systems in the body. However, the endothelial cells (ECs) forming the vasculature can exhibit a number of distinct functional subphenotypes like arterial or venous ECs, as well as angiogenic tip and stalk ECs. Here, we investigate the in vitro differentiation of EC subphenotypes from embryonic stem cells (ESCs) using. Using our staged induction methods and chemically-defined mediums, highly angiogenic EC subpopulations, as well as, less proliferative and less migratory EC subpopulations are derived...
January 10, 2018: Stem Cells and Development
https://www.readbyqxmd.com/read/29320730/esrrb-complementation-rescues-development-of-nanog-null-germ-cells
#13
Man Zhang, Harry G Leitch, Walfred W C Tang, Nicola Festuccia, Elisa Hall-Ponsele, Jennifer Nichols, M Azim Surani, Austin Smith, Ian Chambers
The transcription factors (TFs) Nanog and Esrrb play important roles in embryonic stem cells (ESCs) and during primordial germ-cell (PGC) development. Esrrb is a positively regulated direct target of NANOG in ESCs that can substitute qualitatively for Nanog function in ESCs. Whether this functional substitution extends to the germline is unknown. Here, we show that germline deletion of Nanog reduces PGC numbers 5-fold at midgestation. Despite this quantitative depletion, Nanog-null PGCs can complete germline development in contrast to previous findings...
January 9, 2018: Cell Reports
https://www.readbyqxmd.com/read/29316264/heme-oxygenase-1-affects-generation-and-spontaneous-cardiac-differentiation-of-induced-pluripotent-stem-cells
#14
Jacek Stepniewski, Tomasz Pacholczak, Aniela Skrzypczyk, Maciej Ciesla, Agata Szade, Krzysztof Szade, Romain Bidanel, Agnieszka Langrzyk, Radoslaw Grochowski, Felix Vandermeeren, Neli Kachamakova-Trojanowska, Mateusz Jez, Grazyna Drabik, Mahito Nakanishi, Alicja Jozkowicz, Jozef Dulak
Cellular stress can influence efficiency of iPSCs generation and their differentiation. However, the role of intracellular cytoprotective factors in these processes is still not well known. Therefore, we investigated the effect of HO-1 (Hmox1) or Nrf2 (Nfe2l2), two major cytoprotective genes. Hmox1-/- fibroblasts demonstrated decreased reprogramming efficiency in comparison to Hmox1+/+ cells. Reversely, pharmacological enhancement of HO-1 resulted in higher number of iPSCs colonies. Importantly, elevated level of both p53 and p53-regulated miR-34a and 14-3-3σ was observed in HO-1-deficient fibroblasts whereas downregulation of p53 in these cells markedly increased their reprogramming efficiency...
January 9, 2018: IUBMB Life
https://www.readbyqxmd.com/read/29314416/transient-microrna-expression-enhances-myogenic-potential-of-mouse-embryonic-stem-cells
#15
Joanna Bem, Iwona Grabowska, Maciej Daniszewski, Dorota Zawada, Areta Czerwinska, Lukasz Bugajski, Katarzyna Piwocka, Anna Fogtman, Maria A Ciemerych
MicroRNAs (miRNAs) are known regulators of various cellular processes, including pluripotency and differentiation of embryonic stem cells (ESCs). We analyzed differentiation of two ESC lines - D3 and B8, and observed significant differences in the expression of miRNAs and genes involved in pluripotency and differentiation. We also examined if transient miRNA overexpression could serve as a sufficient impulse modulating differentiation of mouse ESCs. ESCs were transfected with miRNA Mimics and differentiated in embryoid bodies and embryoid body outgrowths...
January 4, 2018: Stem Cells
https://www.readbyqxmd.com/read/29310996/appropriateness-of-statin-prescription-in-the-elderly
#16
M Ruscica, C Macchi, C Pavanello, A Corsini, A Sahebkar, C R Sirtori
Statins, the most widely used drugs in the Western world, have become a pivotal component in the primary and secondary prevention of vascular diseases. Although benefits have been well documented in younger-than-75-year-old individuals, the value of statins in people aged >75years and over is controversial. The CTT meta-analysis calculated an absolute risk reduction of 0.6%/year per 38.7mg/dl reduction in LDL-C levels in patients aged >75years, that would translate into a number needed to treat of 167...
January 5, 2018: European Journal of Internal Medicine
https://www.readbyqxmd.com/read/29309572/cardiovascular-magnetic-resonance-imaging-in-hypertrophic-cardiomyopathy-the-importance-of-clinical-context
#17
Giovanni Quarta, Giovanni Donato Aquaro, Patrizia Pedrotti, Gianluca Pontone, Santo Dellegrottaglie, Attilio Iacovoni, Paolo Brambilla, Silvia Pradella, Giancarlo Todiere, Fausto Rigo, Chiara Bucciarelli-Ducci, Giuseppe Limongelli, Alberto Roghi, Iacopo Olivotto
In patients with suspected or established hypertrophic cardiomyopathy (HCM), cardiovascular magnetic resonance (CMR) is widely employed for clinical management, given its multimodality approach capable of providing unique information on cardiac morphology, function, and tissue characterization. Guidance regarding all aspects of HCM diagnosis and management is provided by the comprehensive 2014 European Society of Cardiology (ESC) guidelines on HCM. CMR should be performed in centres with recognized expertise in heart muscle diseases, by physicians who are familiar with the whole HCM disease spectrum, differential diagnoses, and pitfalls...
December 22, 2017: European Heart Journal Cardiovascular Imaging
https://www.readbyqxmd.com/read/29309567/current-and-future-cardiovascular-disease-risk-assessment-in-the-european-union-an-international-comparative-study
#18
Teresa J Mossakowska, Catherine L Saunders, Jennie Corbett, Calum MacLure, Eleanor M Winpenny, Elma Dujso, Rupert A Payne
Background: Risk assessment is central to primary prevention of cardiovascular disease (CVD), but there remains a need to better understand the use of evidence-based interventions in practice. This study examines: (i) the policies and guidelines for risk assessment in Europe, (ii) the use of risk assessment tools in clinical practice and (iii) the barriers to, and facilitators of, risk assessment. Methods: Data were collected from academics, clinicians and policymakers in an online questionnaire targeted at experts from all European Union member states, and in 8 in-depth country case studies that were developed from a targeted literature review and 36 interviews...
January 4, 2018: European Journal of Public Health
https://www.readbyqxmd.com/read/29308620/mir-302b-3p-promotes-self-renewal-properties-in-leukemia-inhibitory-factor-withdrawn-embryonic-stem-cells
#19
Sharif Moradi, Thomas Braun, Hossein Baharvand
OBJECTIVES: Embryonic stem cells (ESCs) are regulated by a gene regulatory circuitry composed of transcription factors, signaling pathways, metabolic mediators, and non-coding RNAs (ncRNAs). MicroRNAs (miRNAs) are short ncRNAs which play crucial roles in ESCs. Here, we explored the impact of miR-302b-3p on ESC self-renewal in the absence of leukemia inhibitory factor (LIF). MATERIALS AND METHODS: In this experimental study, ESCs were cultured in the presence of 15% fetal bovine serum (FBS) and induced to differentiate by LIF removal...
April 2018: Cell Journal
https://www.readbyqxmd.com/read/29308206/sall4-as-a-transcriptional-and-epigenetic-regulator-in-normal-and-leukemic-hematopoiesis
#20
REVIEW
Jianchang Yang
In recent years, there has been substantial progress in our knowledge of the molecular pathways by which stem cell factor SALL4 regulates the embryonic stem cell (ESC) properties, developmental events, and human cancers. This review summarizes recent advances in the biology of SALL4 with a focus on its regulatory functions in normal and leukemic hematopoiesis. In the normal hematopoietic system, expression of SALL4 is mainly enriched in the bone marrow hematopoietic stem/progenitor cells (HSCs/HPCs), but is rapidly silenced following lineage differentiation...
2018: Biomarker Research
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