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https://www.readbyqxmd.com/read/29156735/telomerase-reverse-transcriptase-mediates-emt-through-nf-%C3%AE%C2%BAb-signaling-in-tongue-squamous-cell-carcinoma
#1
Yan Wu, Chunxiang Bian, Chunlin Zhen, Liu Liu, Zhenghong Lin, Muhammad Farrukh Nisar, Mei Wang, Jörg W Bartsch, Enyi Huang, Ping Ji, Li Yang, Yanhong Yu, Junfeng Yang, Xuemei Jiang, Julia Li Zhong
Locoregional lymph nodes metastasis in oral tongue squamous cell carcinoma represents one of important and common prognostic factors for poor clinical outcome. The human Telomerase Reverse Transcriptase (hTERT) is one of key players in cancer metastasis and stemness, but its exact function in tongue squamous cell carcinoma remains unknown. Here, we aim to understand the role of hTERT by utilizing the CRISPR/Cas9 gene editing system to deplete hTERT in the SCC-15 cell line. Functional comparison of SCC-15 control and knockout cells (hTERT(-/-)) showed that loss of hTERT suppressed cell proliferation and migration/invasion...
October 17, 2017: Oncotarget
https://www.readbyqxmd.com/read/29156547/knowledge-and-practices-of-toxoplasmosis-among-clinical-laboratory-professionals-a-cross-sectional-study-in-durango-mexico
#2
Cosme Alvarado-Esquivel, Luis Francisco Sánchez-Anguiano, Luis Omar Berumen-Segovia, Jesús Hernández-Tinoco, Yazmin Del Rosario Rico-Almochantaf, Alfredo Cisneros-Camacho, Jorge Arturo Cisneros-Martínez
Background: The aim of this study was to determine the level of knowledge and practices about toxoplasmosis in a sample of clinical laboratory professionals in Mexico. Methods: 192 clinical laboratory professionals were surveyed. They were asked about (1) Toxoplasma gondii; (2) clinical manifestations, diagnosis, treatment, and epidemiology of toxoplasmosis; and (3) their practices with respect to toxoplasmosis. Results: The range of animals infected by T. gondii was known by 44.8% of participants. Clinical aspects of toxoplasmosis were known by up to 44...
November 18, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29156488/association-of-pd-l1-expression-with-treatment-outcomes-in-patients-with-braf-mutation-positive-melanoma-treated-with-vemurafenib-or-cobimetinib-combined-with-vemurafenib
#3
Matthew J Wongchenko, Antoni Ribas, Brigitte Dréno, Paolo A Ascierto, Grant A McArthur, Jorge D Gallo, Isabelle A Rooney, Jessie Hsu, Hartmut Koeppen, Yibing Yan, James Larkin
The prognostic significance of programmed death ligand-1 (PD-L1) on treatment outcomes in patients receiving BRAF with or without MEK inhibitors is not well understood. This retrospective exploratory analysis evaluated the association of tumour PD-L1 expression with progression-free survival (PFS) and overall survival (OS) among 210 patients in the coBRIM trial treated with cobimetinib plus vemurafenib or placebo plus vemurafenib. In the vemurafenib cohort, there was a trend of increased PFS and OS in those with PD-L1(+) melanoma, with hazard ratios (HRs) (PD-L1(+) versus PD-L1(-) ) of 0...
November 20, 2017: Pigment Cell & Melanoma Research
https://www.readbyqxmd.com/read/29155992/ihh-gene-mutations-causing-short-stature-with-non-specific-skeletal-abnormalities-and-response-to-growth-hormone-therapy
#4
Gabriela A Vasques, Mariana F A Funari, Frederico M Ferreira, Miriam Aza-Carmona, Lucia Sentchordi-Montané, Jimena Barraza-García, Antonio M Lerario, Guilherme L Yamamoto, Michel S Naslavsky, Yeda A O Duarte, Debora R Bertola, Karen E Heath, Alexander A L Jorge
Context: Genetic evaluation has been recognized as an important tool to elucidate the causes of growth disorders. Objective: To investigate the etiology of short stature and to determine the phenotype of patients with IHH mutations, including the response to growth hormone (rhGH) therapy. Patients and Methods: We studied 17 families with autosomal dominant short stature using whole exome sequencing and screened IHH defects in 290 patients with growth disorders...
November 15, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29155979/epigenetic-editing-of-the-dlg4-psd95-gene-improves-cognition-in-aged-and-alzheimer-s-disease-mice
#5
Fernando J Bustos, Estibaliz Ampuero, Nur Jury, Rodrigo Aguilar, Fahimeh Falahi, Jorge Toledo, Juan Ahumada, Jaclyn Lata, Paula Cubillos, Berta Henríquez, Miguel V Guerra, Jimmy Stehberg, Rachael L Neve, Nibaldo C Inestrosa, Ursula Wyneken, Marco Fuenzalida, Steffen Härtel, Miguel Sena-Esteves, Lorena Varela-Nallar, Marianne G Rots, Martin Montecino, Brigitte van Zundert
The Dlg4 gene encodes for post-synaptic density protein 95 (PSD95), a major synaptic protein that clusters glutamate receptors and is critical for plasticity. PSD95 levels are diminished in ageing and neurodegenerative disorders, including Alzheimer's disease and Huntington's disease. The epigenetic mechanisms that (dys)regulate transcription of Dlg4/PSD95, or other plasticity genes, are largely unknown, limiting the development of targeted epigenome therapy. We analysed the Dlg4/PSD95 epigenetic landscape in hippocampal tissue and designed a Dlg4/PSD95 gene-targeting strategy: a Dlg4/PSD95 zinc finger DNA-binding domain was engineered and fused to effector domains to either repress (G9a, Suvdel76, SKD) or activate (VP64) transcription, generating artificial transcription factors or epigenetic editors (methylating H3K9)...
November 16, 2017: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/29155710/dna-nanotubes-as-a-versatile-tool-to-study-semiflexible-polymers
#6
Jörg Schnauß, Martin Glaser, Jessica S Lorenz, Carsten Schuldt, Christin Möser, Martin Sajfutdinow, Tina Händler, Josef A Käs, David M Smith
Mechanical properties of complex, polymer-based soft matter, such as cells or biopolymer networks, can be understood in neither the classical frame of flexible polymers nor of rigid rods. Underlying filaments remain outstretched due to their non-vanishing backbone stiffness, which is quantified via the persistence length (lp), but they are also subject to strong thermal fluctuations. Their finite bending stiffness leads to unique, non-trivial collective mechanics of bulk networks, enabling the formation of stable scaffolds at low volume fractions while providing large mesh sizes...
October 25, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29155604/modelling-evolutionary-algorithms-with-stochastic-differential-equations
#7
Jorge Pérez Heredia
There has been renewed interest in modelling the behaviour of evolutionary algorithms (EAs) by more traditional mathematical objects, such as ordinary differential equations or Markov chains. The advantage is that the analysis becomes greatly facilitated due to the existence of well established methods. However, this typically comes at the cost of disregarding information about the process. Here, we introduce the use of stochastic differential equations (SDEs) for the study of EAs. SDEs can produce simple analytical results for the dynamics of stochastic processes, unlike Markov chains which can produce rigorous but unwieldy expressions about the dynamics...
November 20, 2017: Evolutionary Computation
https://www.readbyqxmd.com/read/29155504/cervical-funneling-or-intra-amniotic-debris-and-preterm-birth-among-nulliparous-women-with-a-midtrimester-cervical-length-less-than-30-mm
#8
George R Saade, Elizabeth A Thom, William A Grobman, Jay D Iams, Brian M Mercer, Uma M Reddy, Alan T N Tita, Dwight J Rouse, Yoram Sorokin, Ronald J Wapner, Kenneth J Leveno, Sean C Blackwell, M Sean Esplin, Jorge E Tolosa, John M Thorp, Steve N Caritis, J Peter VanDorsten
OBJECTIVE: To evaluate whether the presence of cervical funneling or intra-amniotic debris identified in the second trimester is associated with higher rates of preterm birth (PTB) in asymptomatic nulliparous women with a midtrimester cervical length (CL) less than 30 mm (i.e., less than the 10(th) percentile). METHODS: A secondary cohort analysis of a multicenter trial of women between 16 and 22 weeks with a singleton gestation and a CL less than 30 mm by transvaginal ultrasound randomized to either 17-alpha hydroxyprogesterone caproate or placebo...
November 20, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29155318/kidney-pathology-after-hematologic-cell-transplantation-a-single-center-observation-study-of-indication-biopsies-and-autopsies
#9
Michael Girsberger, Jörg P Halter, Helmut Hopfer, Michael Dickenmann, Thomas Menter
Hematopoietic cell transplantation (HCT) is an increasingly used treatment for hematologic malignancies as well as for non-malignant diseases. Kidney impairment remains an important early and late posttransplant complication. Numerous histopathologic changes have been reported but the pathophysiology is still incompletely understood. Furthermore, correlations between clinical findings and morphologic changes are not well studied. Between 2000 and 2016, 17 patients after allogeneic (n=12) or autologous (n=5) HCT underwent kidney biopsy for either proteinuria or deterioration of kidney function at our center...
November 16, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29155191/ultrasound-guided-pudendal-block-is-a-viable-alternative-to-caudal-block-for-hypospadias-surgery-a-single-surgeon-pilot-study
#10
Sarah Hecht, Jorge Piñeda, Aaron Bayne
OBJECTIVE: To evaluate pudendal nerve block as an alternative to caudal block for hypospadias surgery. METHODS: Data were obtained by chart review. Children who underwent hypospadias repair between 2012 and 2016 by a single surgeon at an academic institution were included. Patients received ultrasound-guided pudendal block (n=21) or caudal block (n=19) as a regional adjunct to general anesthesia. Primary outcomes included analgesic requirement and postoperative length of stay in the recovery unit...
November 16, 2017: Urology
https://www.readbyqxmd.com/read/29154851/effect-of-surgeon-s-experience-on-complications-from-laparoscopic-hysterectomy
#11
Naveiro-Fuentes Mariña, Rodríguez-Oliver Antonio, Fernández-Parra Jorge, González-Paredes Aida, Aguilar-Romero Teresa, Mozas-Moreno Juan
OBJECTIVE: To analyze the effect of learning in two surgeons on complications and conversion to laparotomy during total and subtotal laparoscopic hysterectomy. MATERIAL AND METHODS: We analyzed retrospectively 236 total and subtotal laparoscopic hysterectomies done by two surgeons from the time they first performed the procedure. The interventions were classified in three groups based on the surgeon's experience: the first 75 hysterectomies ("novice period"), the subsequent 75 hysterectomies ("intermediate"), and the subsequent 86 hysterectomies ("routine period")...
November 14, 2017: Journal of gynecology obstetrics and human reproduction
https://www.readbyqxmd.com/read/29154554/associations-between-executive-functioning-affect-regulation-drinking-motives-and-alcohol-use-and-problems
#12
Jorge S Martins, Bruce D Bartholow, M Lynne Cooper, Curtis D Von Gunten, Phillip K Wood
Motivation to use alcohol to regulate positive and negative affect and deficits in cognitive control (i.e., executive functions [EFs]) have both been associated with increased alcohol involvement and alcohol-related consequences. Although dual-process models predict that affect-driven motivations and cognitive control should interact to determine alcohol involvement and alcohol-related consequences, this intersection has remained largely unexplored. The present study examined the extent to which effects of enhancement and coping drinking motives on alcohol use, heavy drinking, and alcohol-related consequences are moderated by individual differences in three theorized components of EF...
November 20, 2017: Psychology of Addictive Behaviors: Journal of the Society of Psychologists in Addictive Behaviors
https://www.readbyqxmd.com/read/29154478/on-the-dual-reactivity-of-a-nucleophilic-dihydrido-diborane-reaction-at-the-b-b-bond-and-or-the-b-h-bond
#13
Anna Widera, Elisabeth Kaifer, Hubert Wadepohl, Hans-Jörg Himmel
The electron-rich, double-base stabilized dihydrido-diborane(4) [HB(hpp)]2 (hpp = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidinate) combines two different, easily accessible reactive sites: the B-B and B-H bond. We hereby report two basically similar reactions of [HB(hpp)]2 with catecholborane and B-chlorocatecholborane unsuspectedly resulting in two different reactivities. While reaction of the diborane with two equivalents of HB(cat) proceeded under formation of a cationic triborane with a (3c2e) bond, [{HB(μ-hpp)}2(μ-BH2)]+, reaction with ClB(cat) led to hydride-chloride substitution yielding [ClB(hpp)]2...
November 20, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/29154430/lower-than-expected-burden-of-premature-ventricular-contractions-impairs-myocardial-function
#14
Øyvind H Lie, Jørg Saberniak, Lars A Dejgaard, Mathis K Stokke, Finn Hegbom, Ole-Gunnar Anfinsen, Thor Edvardsen, Kristina H Haugaa
AIMS: We aimed to explore the burden of frequent premature ventricular contractions (PVCs) associated with myocardial dysfunction in patients with outflow tract arrhythmia (OTA). We hypothesized that this threshold is lower than the previously suggested threshold of 24 000 PVCs/24 h (24%PVC) when systolic function is assessed by strain echocardiography. Furthermore, we aimed to characterize OTA patients with malignant arrhythmic events. METHODS AND RESULTS: We included 52 patients referred for OTA ablation (46 ± 12 years, 58% female)...
November 2017: ESC Heart Failure
https://www.readbyqxmd.com/read/29154389/latent-autoimmune-diabetes-and-limbic-encephalitis-with-antibodies-against-glutamic-acid-decarboxylase
#15
Stoyan Popkirov, Seena Sebastian, Fatme Seval Ismail, Jörg Wellmer
Antibodies against glutamic acid decarboxylase (GAD) are a hallmark of type 1 diabetes and its late-onset variant, latent autoimmune diabetes of the adult (LADA).(1) While cerebrovascular disease and dementia are common causes of cognitive dysfunction and neurological deficits in diabetic patients,(2,3) rare autoimmune disorders of the central nervous system such as stiff-person syndrom or limbic encephalits can also occur on the basis of shared GAD autoimmunity.(4,5).
November 20, 2017: Journal of Diabetes
https://www.readbyqxmd.com/read/29154176/seasonal-changes-in-the-sperm-fatty-acid-composition-of-shetland-pony-stallions
#16
Christine Aurich, Cristina Ortega Ferrusola, Fernando Juan Peña Vega, Nadine Schrammel, David Morcuende, Jörg Aurich
Spermatozoa contain polyunsaturated fatty acids (PUFA). Cryopreservation damages sperm membranes and they become less functional after thawing. We analysed the lipid composition of spermatozoa from Shetland stallions (n = 15) collected monthly from January to June and hypothesized that sperm lipid patterns change with season. In addition, one ejaculate per month was submitted to cryopreservation. Content of saturated palmytic and stearic acid decreased from January to March (p < 0.001) while content of the PUFA docosapentaenoic (p < 0...
November 10, 2017: Theriogenology
https://www.readbyqxmd.com/read/29154041/patient-characteristics-treatment-patterns-and-prognostic-factors-in-squamous-cell-bladder-cancer
#17
Haris Zahoor, Paul Elson, Andrew Stephenson, Georges-Pascal Haber, Jihad Kaouk, Amr Fergany, Byron Lee, Vadim Koshkin, Moshe Ornstein, Timothy Gilligan, Jorge A Garcia, Brian Rini, Petros Grivas
BACKGROUND: Squamous cell carcinoma (SCC) is an uncommon histologic subtype of bladder cancer with limited data on treatment patterns, outcomes, and prognostic factors. "Real world" information might inform decision-making, prognostic estimates, and clinical trial designs. PATIENTS AND METHODS: A retrospective review of patients with tissue-confirmed bladder SCC treated at Cleveland Clinic from 2007 to 2016 was performed. Data on patient characteristics, treatment patterns, and clinical follow-up were extracted...
October 17, 2017: Clinical Genitourinary Cancer
https://www.readbyqxmd.com/read/29154037/sex-and-age-specific-modulation-of-brain-gaba-levels-in-a-mouse-model-of-alzheimer-s-disease
#18
Upasana Roy, Lara Stute, Corinna Höfling, Maike Hartlage-Rübsamen, Jörg Matysik, Steffen Roβner, A Alia
Age and sex are risk factors of Alzheimer's disease (AD). Among the neurotransmitter systems, gamma-aminobutyric acid (GABA) has been implicated in AD pathogenesis but the relevance of sex-specific GABAergic dysfunction during AD progression remains unknown. In the present study, we utilized state-of-the-art high-resolution magic angle spinning nuclear magnetic resonance to systematically monitor the brain region-, age-, and sex-specific modulation of GABA levels in wild-type and Tg2576 mice with amyloid pathology...
October 26, 2017: Neurobiology of Aging
https://www.readbyqxmd.com/read/29153897/comparison-of-single-and-three-fraction-schedules-of-stereotactic-body-radiation-therapy-for-peripheral-early-stage-non-small-cell-lung-cancer
#19
Sung Jun Ma, Lucas M Serra, Yusef A Syed, Gregory M Hermann, Jorge A Gomez-Suescun, Anurag K Singh
BACKGROUND: To compare the clinical outcomes of patients with early-stage non-small-cell lung cancer (NSCLC) who had undergone either single-fraction (SF) or three-fraction (TF) stereotactic body radiation therapy (SBRT) at a single institution during over 8-year period. PATIENTS AND METHODS: Patients with peripherally located early-stage NSCLC who had undergone SBRT from February 2007 to November 2015 were included in the present study. SBRT was delivered without heterogeneity correction...
October 28, 2017: Clinical Lung Cancer
https://www.readbyqxmd.com/read/29153842/stress-activated-nrf2-mdm2-cascade-controls-neoplastic-progression-in-pancreas
#20
Jelena Todoric, Laura Antonucci, Giuseppe Di Caro, Ning Li, Xuefeng Wu, Nikki K Lytle, Debanjan Dhar, Sourav Banerjee, Johan B Fagman, Cecille D Browne, Atsushi Umemura, Mark A Valasek, Hannes Kessler, David Tarin, Michael Goggins, Tannishtha Reya, Maria Diaz-Meco, Jorge Moscat, Michael Karin
Despite expression of oncogenic KRAS, premalignant pancreatic intraepithelial neoplasia 1 (PanIN1) lesions rarely become fully malignant pancreatic ductal adenocarcinoma (PDAC). The molecular mechanisms through which established risk factors, such as chronic pancreatitis, acinar cell damage, and/or defective autophagy increase the likelihood of PDAC development are poorly understood. We show that accumulation of the autophagy substrate p62/SQSTM1 in stressed Kras(G12D) acinar cells is associated with PDAC development and maintenance of malignancy in human cells and mice...
November 7, 2017: Cancer Cell
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