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https://www.readbyqxmd.com/read/29771920/maternal-human-telomerase-reverse-transcriptase-variants-are-associated-with-preterm-labor-and-preterm-premature-rupture-of-membranes
#1
Caroline Marrs, Kevin Chesmore, Ramkumar Menon, Scott Williams
OBJECTIVE: Premature aging and short telomere lengths of fetal tissues are associated with spontaneous preterm labor (PTL) and preterm premature rupture of membranes (pPROM). Maintenance of telomere length is performed by the enzyme telomerase. Human telomerase reverse transcriptase (hTERT) is a subunit of telomerase, and its dysfunction affects telomere shortening. This study assessed whether maternal or fetal genetic variations in the hTERT gene are associated with PTL or pPROM. METHODS: A case (PTL or pPROM) control (term birth) genetic association study was conducted in 654 non-Hispanic white mothers (438 term, 162 PTL, 54 pPROM) and 502 non-Hispanic white newborns (346 term, 116 PTB, 40 pPROM)...
2018: PloS One
https://www.readbyqxmd.com/read/29757015/novichok-a-murderous-nerve-agent-attack-in-the-uk
#2
J Allister Vale, Timothy C Marrs, Robert L Maynard
No abstract text is available yet for this article.
May 14, 2018: Clinical Toxicology
https://www.readbyqxmd.com/read/29748701/patient-characteristics-and-emergency-department-factors-associated-with-survival-after-sudden-cardiac-arrest-in-children-and-young-adults-a-cross-sectional-analysis-of-a-nationally-representative-sample-2006-2013
#3
Rie Sakai-Bizmark, Scott M I Friedlander, Emily H Marr, Laurie A Mena, Ismael Corral, Ruey-Kang R Chang
The purpose of the study is to examine (1) nationally representative incidence rates of Emergency Department (ED) visits due to sudden cardiac arrest (SCA) in pediatric and young adult populations, (2) basic characteristics of the ED visits with SCA, and (3) patient and hospital factors associated with survival after SCA. We used the Nationwide Emergency Department Sample from 2006 to 2013. ICD-9-CM diagnostic codes identified ED visits due to SCA for patients ≤ 30 years old. Outcomes included yearly incidence of ED visits for SCA, and survival to hospital discharge...
May 10, 2018: Pediatric Cardiology
https://www.readbyqxmd.com/read/29746997/transcriptional-analysis-reveals-the-critical-role-of-rna-polymerase-binding-transcription-factor-dksa-in-regulating-multi-drug-resistance-of-escherichia-coli
#4
Jiawei Wang, Li Cao, Xiaowen Yang, Qingmin Wu, Lin Lu, Zhen Wang
The objective of this study was to comprehensively identify the target genes regulated by the RNA polymerase-binding transcription factor DksA in Escherichia coli, and to clarify the role of DksA in multi-drug resistance. A clinical E. coli strain, E8, was selected to construct the dksA gene deletion mutant by using the Red recombination system. The minimum inhibitory concentrations (MICs) of 12 antibiotics in the E8ΔdksA (mutant) were markedly lower than those in the wild-type strain, E8. Genes differentially expressed in the wild-type and dksA mutant were detected using RNA-Seq and were validated by performing quantitative real-time PCR (qRT-PCR)...
May 7, 2018: International Journal of Antimicrobial Agents
https://www.readbyqxmd.com/read/29746808/management-of-in-transit-melanoma-present-challenges-and-future-directions
#5
Jayadev Manikkam Umakanthan, Alissa Marr
No abstract text is available yet for this article.
May 2018: Journal of Oncology Practice
https://www.readbyqxmd.com/read/29746463/nonlinear-decoding-of-a-complex-movie-from-the-mammalian-retina
#6
Vicente Botella-Soler, Stéphane Deny, Georg Martius, Olivier Marre, Gašper Tkačik
Retina is a paradigmatic system for studying sensory encoding: the transformation of light into spiking activity of ganglion cells. The inverse problem, where stimulus is reconstructed from spikes, has received less attention, especially for complex stimuli that should be reconstructed "pixel-by-pixel". We recorded around a hundred neurons from a dense patch in a rat retina and decoded movies of multiple small randomly-moving discs. We constructed nonlinear (kernelized and neural network) decoders that improved significantly over linear results...
May 2018: PLoS Computational Biology
https://www.readbyqxmd.com/read/29736261/choroidal-infarction-following-ophthalmic-artery-chemotherapy
#7
Kelley J Bohm, Y Pierre Gobin, Jasmine H Francis, Gabrielle McInerney, Anahita Dabo-Trubelja, Paul H Dalecki, Brian P Marr, David H Abramson
Background: Methylenetetrahydrofolate reductase (MTHFR) genetic mutations and intra-procedural inhaled nitrous oxide (N2 O) independently increase blood levels of homocysteine, a compound associated with thrombosis. Patients with MTHFR mutations who also receive N2 O during ophthalmic artery chemotherapy (OAC) for retinoblastoma may have a heightened thrombotic risk. Case presentations: Single-center retrospective review of pediatric patients with advanced retinoblastoma who received OAC and developed choroidal infarcts...
2018: International Journal of Retina and Vitreous
https://www.readbyqxmd.com/read/29732975/demystifying-dysbiosis-can-the-gut-microbiome-promote-oral-tolerance-over-ige-mediated-food-allergy
#8
Tom Marrs, K Sim
The growing burden of food allergy is being driven by environmental exposures and the potential role of gut micro-organisms (or 'microbiota') is hotly debated. Early culture-based studies outlined that imbalances between commensal gut constituents ('dysbiosis') early in life may raise the risk of developing allergic disease. A number of studies using animal models describe mechanisms by which specific bacterial taxa within the gut microbiota, their diversity and dietary substrates such as fibre may promote oral tolerance...
May 7, 2018: Current Pediatric Reviews
https://www.readbyqxmd.com/read/29728717/circulating-amino-acids-and-the-risk-of-macrovascular-microvascular-and-mortality-outcomes-in-individuals-with-type-2-diabetes-results-from-the-advance-trial
#9
Paul Welsh, Naomi Rankin, Qiang Li, Patrick B Mark, Peter Würtz, Mika Ala-Korpela, Michel Marre, Neil Poulter, Pavel Hamet, John Chalmers, Mark Woodward, Naveed Sattar
AIMS/HYPOTHESES: We aimed to quantify the association of individual circulating amino acids with macrovascular disease, microvascular disease and all-cause mortality in individuals with type 2 diabetes. METHODS: We performed a case-cohort study (N = 3587), including 655 macrovascular events, 342 microvascular events (new or worsening nephropathy or retinopathy) and 632 all-cause mortality events during follow-up, in a secondary analysis of the Action in Diabetes and Vascular Disease: Preterax and Diamicron Modified Release Controlled Evaluation (ADVANCE) study...
May 4, 2018: Diabetologia
https://www.readbyqxmd.com/read/29708084/age-bias-in-survey-sampling-and-implications-for-estimating-hiv-prevalence-in-men-who-have-sex-with-men-insights-from-mathematical-modelling
#10
L F Johnson, P Mulongeni, A Marr, T Lane
Respondent-driven sampling (RDS) is widely used to estimate HIV prevalence in men who have sex with men (MSM). Mathematical models that are calibrated to these data may be compromised if they fail to account for selection biases in RDS surveys. To quantify the potential extent of this bias, an agent-based model of HIV in South Africa was calibrated to HIV prevalence and sexual behaviour data from South African studies of MSM, first reweighting the modelled MSM population to match the younger age profile of the RDS surveys (age-adjusted analysis) and then without reweighting (unadjusted analysis)...
April 30, 2018: Epidemiology and Infection
https://www.readbyqxmd.com/read/29707500/functional-outcome-after-laryngo-tracheal-resection-and-reconstruction-for-acquired-benign-laryngo-tracheal-stenosis
#11
Simone T Timman, Christiana Schoemaker, Wilson W L Li, Henri A M Marres, Jimmie Honings, Wim J Morshuis, Erik H F M van der Heijden, Ad F T M Verhagen
Background: In this study we focus on functional outcomes after (laryngo)tracheal resection and reconstruction for acquired benign (laryngo)tracheal stenosis, with a specific interest in the impact of laryngeal involvement on postoperative outcome. Methods: All patients who underwent (laryngo)tracheal surgery for benign pathology between 1996 and 2017 in our centre were included in this retrospective study. Surgical outcomes were procedural success rate, and airway- and voice-related complications...
March 2018: Annals of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/29703899/mitochondria-targeted-probes-for-imaging-protein-sulfenylation
#12
Reetta J Holmila, Stephen A Vance, Xiaofei Chen, Hanzhi Wu, Kirtikar Shukla, Manish S Bharadwaj, Jade Mims, Zack Wary, Glen Marrs, Ravi Singh, Anthony J Molina, Leslie B Poole, S Bruce King, Cristina M Furdui
Mitochondrial reactive oxygen species (ROS) are essential regulators of cellular signaling, metabolism and epigenetics underlying the pathophysiology of numerous diseases. Despite the critical function of redox regulation in mitochondria, currently there are limited methods available to monitor protein oxidation in this key subcellular organelle. Here, we describe compounds for imaging sulfenylated proteins in mitochondria: DCP-NEt2 -Coumarin (DCP-NEt2 C) and rhodamine-based DCP-Rho1. Side-by-side comparison studies are presented on the reactivity of DCP-NEt2 C and DCP-Rho1 with a model protein sulfenic acid (AhpC-SOH) and mitochondrial localization to identify optimized experimental conditions for labeling and visualization of protein sulfenylation that would be independent of mitochondria membrane potential and would not impact mitochondrial function...
April 27, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29703844/a-genome-wide-association-study-of-diabetic-kidney-disease-in-subjects-with-type-2-diabetes
#13
Natalie R van Zuydam, Emma Ahlqvist, Niina Sandholm, Harshal Deshmukh, N William Rayner, Moustafa Abdalla, Claes Ladenvall, Daniel Ziemek, Eric Fauman, Neil R Robertson, Paul M McKeigue, Erkka Valo, Carol Forsblom, Valma Harjutsalo, Annalisa Perna, Erica Rurali, M Loredana Marcovecchio, Robert P Igo, Rany M Salem, Norberto Perico, Maria Lajer, Annemari Käräjämäki, Minako Imamura, Michiaki Kubo, Atsushi Takahashi, Xueling Sim, Jianjun Liu, Rob M van Dam, Guozhi Jiang, Claudia H T Tam, Andrea O Y Luk, Heung Man Lee, Cadmon K P Lim, Cheuk Chun Szeto, Wing Yee So, Juliana C N Chan, Su Fen Ang, Rajkumar Dorajoo, Ling Wang, Tan Si Hua Clara, Amy-Jayne McKnight, Seamus Duffy, Marcus G Pezzolesi, Genie Consortium, Michel Marre, Beata Gyorgy, Samy Hadjadj, Linda T Hiraki, Tarunveer S Ahluwalia, Peter Almgren, Christina-Alexandra Schulz, Marju Orho-Melander, Allan Linneberg, Cramer Christensen, Daniel R Witte, Niels Grarup, Ivan Brandslund, Olle Melander, Andrew D Paterson, David Tregouet, Alexander P Maxwell, Su Chi Lim, Ronald C W Ma, E Shyong Tai, Shiro Maeda, Valeriya Lyssenko, Tiinamaija Tuomi, Andrzej S Krolewski, Stephen S Rich, Joel N Hirschhorn, Jose C Florez, David Dunger, Oluf Pedersen, Torben Hansen, Peter Rossing, Giuseppe Remuzzi, Mary Julia Brosnan, Colin N A Palmer, Per-Henrik Groop, Helen M Colhoun, Leif C Groop, Mark I McCarthy
Identification of sequence variants robustly associated with predisposition to diabetic kidney disease (DKD) has the potential to provide insights into the pathophysiological mechanisms responsible. We conducted a genome-wide association study (GWAS) of DKD in type 2 diabetes (T2D) using eight complementary dichotomous and quantitative DKD phenotypes: the principal dichotomous analysis involved 5,717 T2D subjects, 3,345 with DKD. Promising association signals were evaluated in up to 26,827 subjects with T2D (12,710 with DKD)...
April 27, 2018: Diabetes
https://www.readbyqxmd.com/read/29695241/novel-risk-genes-identified-in-a-genome-wide-association-study-for-coronary-artery-disease-in-patients-with-type-1-diabetes
#14
Romain Charmet, Seamus Duffy, Sareh Keshavarzi, Beata Gyorgy, Michel Marre, Peter Rossing, Amy Jayne McKnight, Alexander P Maxwell, Tarun Veer Singh Ahluwalia, Andrew D Paterson, David-Alexandre Trégouët, Samy Hadjadj
BACKGROUND: Patients with type 1 diabetes are more at risk of coronary artery disease than the general population. Although evidence points to a genetic risk there have been no study investigating genetic risk factors of coronary artery disease specific to individuals with type 1 diabetes. To identify low frequency and common genetic variations associated with coronary artery disease in populations of individuals with type 1 diabetes. METHODS: A two-stage genome wide association study was conducted...
April 25, 2018: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/29687090/sex-difference-in-the-effect-of-fetal-exposure-to-maternal-diabetes-on-insulin-secretion
#15
Jean-François Gautier, Lila Sabrina Fetita, Jean-Pierre Riveline, Fidaa Ibrahim, Raphaël Porcher, Charbel Abi Khalil, Gilberto Velho, Simeon-Pierre Choukem, Samy Hadjadj, Etienne Larger, Ronan Roussel, Philippe Boudou, Michel Marre, Eric Ravussin, Franck Mauvais-Jarvis
We previously showed that fetal exposure to maternal type 1 diabetes (T1D) is associated with altered glucose-stimulated insulin secretion in adult offspring. Here, we investigated whether this β -cell defect displays a sex dimorphism. Twenty-nine adult nondiabetic offspring of T1D mothers (ODMs) were compared with 29 nondiabetic offspring of T1D fathers. We measured early insulin secretion in response to oral glucose and insulin secretion rate in response to intravenous glucose ramping. Insulin sensitivity and body composition were assessed by a euglycemic, hyperinsulinemic clamp and dual-energy X-ray absorptiometry, respectively...
May 1, 2018: Journal of the Endocrine Society
https://www.readbyqxmd.com/read/29686489/a-14-year-old-girl-with-short-stature-incomplete-puberty-and-severe-menstrual-bleeding
#16
EDITORIAL
Alexa Marr, Karolyn Hardy, Jacqueline Curtis
No abstract text is available yet for this article.
April 2018: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29684106/urine-antigen-detection-as-an-aid-to-diagnose-invasive-aspergillosis
#17
Kieren A Marr, Kausik Datta, Seema Mehta, Darin B Ostrander, Michelle Rock, Jesse Francis, Marta Feldmesser
Background: Establishing rapid diagnoses of invasive aspergillosis (IA) is priority, given poor outcomes of late therapy. Non-culture based tests that detect galactomannan and β-D glucan are available, but are technically cumbersome and rely on invasive sampling (blood or bronchoalveolar lavage). Methods: We optimized a lateral flow dipstick assay using the galactofuranose -specific monoclonal antibody (mAb476), which was previously shown to recognize urine antigens after Aspergillus fumigatus pulmonary infection in an`imals...
April 19, 2018: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/29679983/evaluation-of-a-real-time-pcr-assay-for-detection-and-quantification-of-bacterial-dna-directly-in-blood-of-preterm-neonates-with-suspected-late-onset-sepsis
#18
Marre van den Brand, Frank A M van den Dungen, Martine P Bos, Mirjam M van Weissenbruch, A Marceline van Furth, Annemieke de Lange, Anna Rubenjan, Remco P H Peters, Paul H M Savelkoul
BACKGROUND: Rapid and accurate diagnosis of neonatal sepsis is highly warranted because of high associated morbidity and mortality. The aim of this study was to evaluate the performance of a novel multiplex PCR assay for diagnosis of late-onset sepsis and to investigate the value of bacterial DNA load (BDL) determination as a measure of infection severity. METHODS: This cross-sectional study was conducted in a neonatal intensive care unit. Preterm and/or very low birth weight infants suspected for late-onset sepsis were included...
April 22, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29674543/draft-genome-assembly-of-the-sheep-scab-mite-psoroptes-ovis
#19
Stewart T G Burgess, Kathryn Bartley, Edward J Marr, Harry W Wright, Robert J Weaver, Jessica C Prickett, Margaret Hughes, Sam Haldenby, Phuong Thi Le, Stephane Rombauts, Thomas Van Leeuwen, Yves Van de Peer, Alasdair J Nisbet
Sheep scab, caused by infestation with Psoroptes ovis , is highly contagious, results in intense pruritus, and represents a major welfare and economic concern. Here, we report the first draft genome assembly and gene prediction of P. ovis based on PacBio de novo sequencing. The ∼63.2-Mb genome encodes 12,041 protein-coding genes.
April 19, 2018: Genome Announcements
https://www.readbyqxmd.com/read/29670625/immunology-of-cryptococcal-infections-developing-a-rational-approach-to-patient-therapy
#20
REVIEW
Waleed Elsegeiny, Kieren A Marr, Peter R Williamson
Cryptococcal meningoencephalitis is responsible for upwards of 15% of HIV-related deaths worldwide and is currently the most common cause of non-viral meningitis in the US, affecting both previously healthy and people with immune suppression caused by cancer chemotherapy, transplantation, and biologic therapies. Despite a continued 30-50% attributable mortality, recommended therapeutic strategies have remained largely unchanged since the 1950s. Recent murine models and human studies examining the role of the immune system in both susceptibility to the infection as well as host damage have begun to influence patient care decisions...
2018: Frontiers in Immunology
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