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https://www.readbyqxmd.com/read/28432223/fli1-level-during-megakaryopoiesis-affects-thrombopoiesis-and-platelet-biology
#1
Karen K Vo, Danuta J Jarocha, Randolph B Lyde, Vincent Hayes, Christopher S Thom, Spencer K Sullivan, Deborah L French, Mortimer Poncz
Friend Leukemia Virus Integration 1 (FLI1), a critical transcription factor (TF) during megakaryocyte differentiation, is amongst genes hemizygously deleted in Jacobsen syndrome, resulting in a macrothrombocytopenia termed Paris-Trousseau syndrome (PTSx). Recently, heterozygote human FLI1 mutations have been ascribed to cause thrombocytopenia. We studied induced-pluripotent stem cell (iPSC)-derived megakaryocytes (iMegs) to better understand these clinical disorders, beginning with iPSCs generated from a PTSx patient and iPSCs from a control line with a targeted heterozygous FLI1 knockout (FLI1(+/-))...
April 21, 2017: Blood
https://www.readbyqxmd.com/read/28430877/the-accessible-chromatin-landscape-during-conversion-of-human-embryonic-stem-cells-to-trophoblast-by-bmp4
#2
Yajun Liu, Dewu Ding, Hongde Liu, Xiao Sun
Human embryonic stem cells (hESC) exposed to the growth factor bone morphogenic protein 4 (BMP4) in the absence of FGF2 have been used as a model to study the development of placental development. However, little is known about the cis-regulatory mechanisms underlying this important process. In this study, we used the public available chromatin accessibility data of hESC H1 cells and BMP4-induced trophoblast (TB)cell lines to identify DNase I hypersensitive sites (DHSs) in the two cell lines, as well as the transcription factor binding sites within the DHSs...
April 18, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28430128/environmental-tobacco-smoke-exposure-and-smoke-free-rules-in-homes-among-socially-disadvantaged-populations-in-poland
#3
Katarzyna Milcarz, Leokadia Bak-Romaniszyn, Dorota Kaleta
This study aims to examine the prevalence of exposure to environmental tobacco smoke (ETS) in homes among socially-disadvantaged populations in Poland, along with the prevalence and correlates of voluntary implementation of smoke-free home rules. Data concerning 1617 respondents from a cross-sectional study completed in the Piotrkowski District were used, which was part of the "Reducing Social Inequalities in Health" program. Overall, 19.4% of the respondents declared exposure to ETS at home. In the non-smokers group, 15...
April 21, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28430012/zo-1-expression-is-suppressed-by-gm-csf-via-mir-96-erg-in-brain-microvascular-endothelial-cells
#4
Hu Zhang, Shuhong Zhang, Jilin Zhang, Dongxin Liu, Jiayi Wei, Wengang Fang, Weidong Zhao, Yuhua Chen, Deshu Shang
The level of granulocyte-macrophage colony-stimulating factor (GM-CSF) increases in some disorders such as vascular dementia, Alzheimer's disease, and multiple sclerosis. We previously reported that in Alzheimer's disease patients, a high level of GM-CSF in the brain parenchyma downregulated expression of ZO-1, a blood-brain barrier tight junction protein, and facilitated the infiltration of peripheral monocytes across the blood-brain barrier. However, the molecular mechanism underlying regulation of ZO-1 expression by GM-CSF is unclear...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28428944/the-status-of-assisted-reproductive-technology-in-korea-in-2012
#5
Gyoung Hoon Lee, Hyun Jin Song, Young Min Choi, Hyuck Dong Han
OBJECTIVE: This study was designed to report the status of assisted reproductive technology (ART) therapy in South Korea between January 1, 2012 and December 31, 2012. METHODS: A localized online survey, originally developed by the International Committee Monitoring Assisted Reproductive Technologies, was first launched and provided to all available ART centers via email in 2015. Fresh embryo transfer (FET) cases were categorized as standard in vitro fertilization, intracytoplasmic sperm injection (ICSI), or half-ICSI...
March 2017: Clinical and Experimental Reproductive Medicine
https://www.readbyqxmd.com/read/28427164/early-tumour-shrinkage-as-a-survival-predictor-in-patients-with-recurrent-glioblastoma-treated-with-bevacizumab-in-the-avareg-randomized-phase-ii-study
#6
Alba A Brandes, Gaetano Finocchiaro, Vittorina Zagonel, Michele Reni, Alessandra Fabi, Claudia Caserta, Alicia Tosoni, Marica Eoli, Giuseppe Lombardi, Matteo Clavarezza, Alexandro Paccapelo, Stefania Bartolini, Luigi Cirillo, Raffaele Agati, Enrico Franceschi
BACKGROUND: Disease assessment for recurrent glioblastoma (GBM) represents a challenge, especially with the use of antiangiogenic agents. Moreover, validated neuroradiological predictors of outcome are lacking. Recently, the concept of early tumor shrinkage (ETS) has been developed to better assess the ability of treatments in determining a rapid and remarkable tumor response.The aim of the study was to evaluate the role of ETS in predicting survival of GBM patients treated with BEVMETHODS: We examined the radiological data of patients with recurrent GBM treated with bevacizumab (BEV) or fotemustine (FTM) in the randomized phase II AVAREG trial (EudraCT: 2011-001363-46)...
February 25, 2017: Oncotarget
https://www.readbyqxmd.com/read/28424975/etv-2-activated-proliferation-of-endothelial-cells-and-attenuated-acute-hindlimb-ischemia-in-mice
#7
Phuc Van Pham, Ngoc Bich Vu, Hoa Trong Nguyen, Thuy Thi-Thanh Dao, Ha Thi-Ngan Le, Lan Thi Phi, Oanh Thi-Kieu Nguyen, Ngoc Kim Phan
Ischemia is the reduction of blood flow to tissues by injury of blood vessels. Depending on the sites of tissues and grade of ischemia, ischemia can cause many serious complications. This study aimed to evaluate the effects of the E-twenty six (ETS) factor Ets variant 2 (ETV2) gene expression in angiogenesis and the effect of ETV2 gene therapy in a mouse model of hindlimb ischemia. The role of ETV2 on endothelial cell proliferation was evaluated in vitro. Knockdown of ETV2 expression was done using short hairpin RNA (shRNA) lentiviral viral particles...
April 19, 2017: In Vitro Cellular & Developmental Biology. Animal
https://www.readbyqxmd.com/read/28424871/final-analysis-of-the-randomised-peak-trial-overall-survival-and-tumour-responses-during-first-line-treatment-with-mfolfox6-plus-either-panitumumab-or-bevacizumab-in-patients-with-metastatic-colorectal-carcinoma
#8
Fernando Rivera, Meinolf Karthaus, J Randolph Hecht, Isabel Sevilla, Frédéric Forget, Gianpiero Fasola, Jean-Luc Canon, Xuesong Guan, Gaston Demonty, Lee S Schwartzberg
PURPOSE: To report planned final overall (OS) and progression-free survival (PFS) analyses from the phase II PEAK trial (NCT00819780). METHODS: Patients with previously untreated, KRAS exon 2 wild-type (WT) metastatic colorectal cancer (mCRC) were randomised to mFOLFOX6 plus panitumumab or bevacizumab. The primary endpoint was PFS; secondary endpoints included OS, objective response rate, duration of response (DoR), time to response, resection and safety. Treatment effect by tumour RAS status was a prespecified objective...
April 19, 2017: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/28423598/next-generation-mapping-reveals-novel-large-genomic-rearrangements-in-prostate-cancer
#9
Weerachai Jaratlerdsiri, Eva K F Chan, Desiree C Petersen, Claire Yang, Peter I Croucher, M S Riana Bornman, Palak Sheth, Vanessa M Hayes
Complex genomic rearrangements are common molecular events driving prostate carcinogenesis. Clinical significance, however, has yet to be fully elucidated. Detecting the full range and subtypes of large structural variants (SVs), greater than one kilobase in length, is challenging using clinically feasible next generation sequencing (NGS) technologies. Next generation mapping (NGM) is a new technology that allows for the interrogation of megabase length DNA molecules outside the detection range of single-base resolution NGS...
April 4, 2017: Oncotarget
https://www.readbyqxmd.com/read/28422886/comparison-of-t2-and-t3-sympathectomy-for-compensatory-sweating-on-palmar-hyperhidrosis
#10
Atila Turkyilmaz, Sami Karapolat, Kubra Nur Seyis, Celal Tekinbas
BACKGROUND: An otherwise successfully performed endoscopic thoracic sympathectomy (ETS) to treat palmar hyperhidrosis (PH) often has a serious side effect: compensatory sweating (CS). This side effect occurs in other parts of the body to a disturbing extent. The objective of this study is to determine whether there is a relationship between the level of ETS performed on patients with PH, and the occurrence and severity of postoperational CS. METHODS: Between January 2014 and January 2015, ETS procedures were performed on 25 randomly selected consecutive subjects (group A) at T2 level, and on another 25 subjects (group B) at T3 level, who all felt severely handicapped due to PH...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28420040/semi-end-to-end-esophagojejunostomy-after-laparoscopy-assisted-total-gastrectomy-better-reduces-stricture-and-leakage-than-the-conventional-end-to-side-procedure-a-retrospective-study
#11
Wei Duan, Kaijun Liu, Xiaolong Fu, Xuqi Shen, Jun Chen, Chongyu Su, Peiwu Yu, Yongliang Zhao
BACKGROUND AND OBJECTIVE: Laparoscopy-assisted total gastrectomy (LATG) has not gained popularity due to the technical difficulty of esophagojejunostomy (EJ) and the high incidence of EJ-related complications. Herein, we compared two types of EJ for Roux-en-Y reconstruction to determine whether semi-end-to-end (SETE) EJ is more convenient than the end-to-side (ETS) procedure and is capable of reducing stricture and leakage. METHODS: A total of 268 patients who underwent LATG with Roux-en-Y reconstruction were included in this study...
April 18, 2017: Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28416505/hematopoietic-transcription-factors-mutations-important-players-in-inherited-platelet-defects
#12
Natthapol Songdej, A Koneti Rao
Transcription factors (TF) are proteins that bind to specific DNA sequences and regulate expression of genes. The molecular and genetic mechanisms in most patients with inherited platelet defects are unknown. There is now increasing evidence that mutations in hematopoietic TFs are an important underlying cause for defects in platelet production, morphology, and function. The hematopoietic TFs implicated in patients with impaired platelet function and number include runt related transcription factor 1 (RUNX1), Fli-1 proto-oncogene, ETS transcription factor (FLI1), GATA-binding protein 1 (GATA1), growth factor independent 1B transcriptional repressor (GFI1B), ETS variant 6 (ETV6), ecotropic viral integration site 1 (EVI1), and homeobox A11 (HOXA11)...
April 17, 2017: Blood
https://www.readbyqxmd.com/read/28415714/depth-of-response-is-a-significant-predictor-for-long-term-outcome-in-advanced-gastric-cancer-patients-treated-with-trastuzumab
#13
Choong-Kun Lee, Seung-Seob Kim, Saemi Park, Chan Kim, Su Jin Heo, Joon Seok Lim, Hyunki Kim, Hyo Song Kim, Sun Young Rha, Hyun Cheol Chung, Sohee Park, Minkyu Jung
PURPOSE: We aimed to determine and compare the predictive values of depth of response (DpR) and early tumor shrinkage (ETS) on long-term outcomes in gastric cancer patients treated with trastuzumab. RESULTS: From a total of 368 computed tomography examinations, DpR and ETS were evaluated. DpR was a significant tumor-size metric in predicting PFS and OS, and showed better discriminatory ability (higher Cτ indices, 0.6957 for PFS; 0.7191 for OS) than ETS. DpR ≥ 45% (vs...
March 10, 2017: Oncotarget
https://www.readbyqxmd.com/read/28412981/differences-in-the-use-of-everyday-technology-among-persons-with-mci-sci-and-older-adults-without-known-cognitive-impairment
#14
Camilla Malinowsky, Anders Kottorp, Anders Wallin, Arto Nordlund, Eva Björklund, Ilse Melin, Anette Pernevik, Lena Rosenberg, Louise Nygård
BACKGROUND: To use valid subjective reports sensible to cognitive decline is vital to identify very early signs of dementia development. Use of everyday technology (ET) has been shown to be sensitive to differentiate adults with mild cognitive impairment (MCI) from controls, but the group with subjective cognitive impairment (SCI) has not yet been examined. This study aims to investigate and compare self-perceived ability in ET use and number of ETs reported as actually used in a sample of older adults with SCI, MCI, and older adults with no known cognitive impairment, i...
April 17, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28412366/nanog-gene-expression-is-regulated-by-the-ets-transcription-factor-etv4-in-human-embryonic-carcinoma-nccit-cells
#15
Sung-Won Park, Hyun-Jin Do, Wonbin Choi, Hyuk Song, Hak-Jae Chung, Jae-Hwan Kim
We demonstrated that ETV4 is a transcriptional activator of the NANOG gene in human embryonic carcinoma NCCIT cells. The endogenous expression of NANOG and ETV4 in naïve cells was significantly down-regulated upon differentiation and by shRNA-mediated knockdown of ETV4. NANOG transcription was significantly upregulated by ETV4 overexpression. A putative ETS binding site (EBS) is present in the region (-285 to -138) of the proximal promoter. Site-directed mutagenesis of the putative EBS ((-196)AGGATT(-191)) abolished NANOG promoter activity and ETV4 interacted with this putative EBS both in vivo and in vitro...
April 12, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28412323/single-cpg-site-methylation-controls-estrogen-receptor-gene-transcription-and-correlates-with-hormone-therapy-resistance
#16
Kouki Tsuboi, Takamasa Nagatomo, Tatsuyuki Gohno, Toru Higuchi, Shunta Sasaki, Natsu Fujiki, Masafumi Kurosumi, Hiroyuki Takei, Yuri Yamaguchi, Toshifumi Niwa, Shin-Ichi Hayashi
Hormone therapy is the most effective treatment for patients with estrogen receptor α-positive breast cancers. However, although resistance occurs during treatment in some cases and often reflects changed estrogen receptor α status, the relationship between changes in estrogen receptor α expression and resistance to therapy are poorly understood. In this study, we identified a mechanism for altered estrogen receptor α expression during disease progression and acquired hormone therapy resistance in aromatase inhibitor-resistant breast cancer cell lines...
April 12, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28410216/friend-leukemia-virus-integration-1-promotes-tumorigenesis-of-small-cell-lung-cancer-cells-by-activating-the-mir-17-92-pathway
#17
LingyuLi, Wei Song, Xu Yan, Ailing Li, Xiaoying Zhang, Wei Li, Xue Wen Lei Zhou, Dehai Yu, Ji-Fan Hu, Jiuwei Cui
Small cell lung cancer (SCLC) is regarded as the most devastative type of human lung malignancies. The rapid and disseminated growth pattern remains the primary cause of poor clinical prognosis in patients with SCLC. However, the molecular factors that drive rapid progression of SCLC remain unclear. Friend leukemia virus integration 1 (FLI1), an Ets transcription factor family member, has been previously reported to act as a major driver of hematological malignancies. In this study, we explored the potential role of FLI1 in SCLC...
March 30, 2017: Oncotarget
https://www.readbyqxmd.com/read/28408625/ets-dependent-transcriptional-upregulation-of-the-transcriptional-co-activator-taz-promotes-cell-migration-and-metastasis-in-prostate-cancer
#18
Chen-Ying Liu, Tong Yu, Yuji Huang, Long Cui, Wanjin Hong
Prostate cancer is a very common malignant disease and a leading cause of death for men in the western world. Tumorigenesis and progression of prostate cancer involves multiple signaling pathways, including Hippo pathway. Yes-associated protein (YAP) is the downstream transcriptional co-activator of Hippo pathway, is overexpressed in the prostate cancer, and plays a vital role in the tumorigenesis and cancer progression of prostate cancer. However, the role of the YAP paralog and another downstream effector of Hippo pathway, transcriptional co-activator with PDZ-binding motif (TAZ), in prostate cancer has not been fully elucidated...
April 13, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28403960/anatomical-causes-of-difficult-embryo-transfer-during-in-vitro-fertilization
#19
L Larue, G Keromnes, A Massari, C Roche, D Bouret, N G Cassuto, J P Ayel
OBJECTIVES: Identify, define and validate through statistical analysis the anatomical causes of difficult embryo transfers (ET). MATERIALS AND METHODS: This observational study, carried out in 306 IVF candidates, compared the frequency of anatomical anomalies of the uterus and cervix in women who underwent an easy ET with that in women who underwent a difficult ET. Anatomical anomalies were detected during an assessment of the cervix and uterus including transvaginal ultrasound, hysteroscopy and a mock transfer...
January 2017: J Gynecol Obstet Hum Reprod
https://www.readbyqxmd.com/read/28402858/sequential-response-to-multiple-developmental-network-circuits-encoded-in-an-intronic-cis-regulatory-module-of-sea-urchin-hox11-13b
#20
Miao Cui, Erika Vielmas, Eric H Davidson, Isabelle S Peter
Gene expression in different spatial domains is often controlled by separate cis-regulatory modules (CRMs), but regulatory states determining CRM activity are not only distinct in space, they also change continuously during developmental time. Here, we systematically analyzed the regulatory sequences controlling hox11/13b expression and identified a single CRM required throughout embryonic gut development. We show that within this CRM, distinct sets of binding sites recognizing Ets, Tcf, and homeodomain transcription factors control the dynamic spatial expression of hox11/13b in each developmental phase...
April 11, 2017: Cell Reports
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