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Michael Mulvey

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https://www.readbyqxmd.com/read/28628457/clonal-clusters-and-virulence-factors-of-group-c-and-g-streptococcus-causing-severe-infections-manitoba-canada-2012-2014
#1
Sylvain A Lother, Walter Demczuk, Irene Martin, Michael Mulvey, Brenden Dufault, Philippe Lagacé-Wiens, Yoav Keynan
The incidence of group C and G Streptococcus (GCGS) bacteremia, which is associated with severe disease and death, is increasing. We characterized clinical features, outcomes, and genetic determinants of GCGS bacteremia for 89 patients in Winnipeg, Manitoba, Canada, who had GCGS bacteremia during 2012-2014. Of the 89 patients, 51% had bacteremia from skin and soft tissue, 70% had severe disease features, and 20% died. Whole-genome sequencing analysis was performed on isolates derived from 89 blood samples and 33 respiratory sample controls: 5 closely related genetic lineages were identified as being more likely to cause invasive disease than non-clade isolates (83% vs...
July 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28604172/opioids-combined-with-antidepressants-or-antiepileptic-drugs-for-cancer-pain-systematic-review-and-meta-analysis
#2
Chris M Kane, Matthew R Mulvey, Sophie Wright, Cheryl Craigs, Judy M Wright, Michael I Bennett
BACKGROUND: Combining antidepressant or antiepileptic drugs with opioids has resulted in increased pain relief when used for neuropathic pain in non-cancer conditions. However, evidence to support their effectiveness in cancer pain is lacking. AIM: To determine if there is additional benefit when opioids are combined with antidepressant or antiepileptic drugs for cancer pain. DESIGN: Systematic review and meta-analysis. Randomised control trials comparing opioid analgesia in combination with antidepressant or antiepileptic drugs versus opioid monotherapy were sought...
June 1, 2017: Palliative Medicine
https://www.readbyqxmd.com/read/28531208/phylogenetic-analysis-of-emergent-streptococcus-pneumoniae-serotype-22f-causing-invasive-pneumococcal-disease-using-whole-genome-sequencing
#3
Walter H B Demczuk, Irene Martin, Linda Hoang, Paul Van Caeseele, Brigitte Lefebvre, Greg Horsman, David Haldane, Jonathan Gubbay, Sam Ratnam, Gregory German, Jennifer Daley Bernier, Lori Strudwick, Allison McGeer, George G Zhanel, Gary Van Domselaar, Morag Graham, Michael R Mulvey
Since implementation of the 13-valent polyvalent conjugate vaccine (PCV13) in Canada during 2010, the proportion of PCV13 serotypes causing invasive pneumococcal disease (IPD) has declined from 55% (n = 1492) in 2010 to 31% (n = 764) in 2014. A concurrent increase of non-PCV13 serotypes has occurred and 22F has become the most prevalent serotype in Canada increasing from 7% (n = 183) to 11% (n = 283). Core single nucleotide variant phylogenetic analysis was performed on 137 Streptococcus pneumoniae serotype 22F isolates collected across Canada from 2005-2015...
2017: PloS One
https://www.readbyqxmd.com/read/28471460/using-hyperlopit-to-perform-high-resolution-mapping-of-the-spatial-proteome
#4
Claire M Mulvey, Lisa M Breckels, Aikaterini Geladaki, Nina Kočevar Britovšek, Daniel J H Nightingale, Andy Christoforou, Mohamed Elzek, Michael J Deery, Laurent Gatto, Kathryn S Lilley
The organization of eukaryotic cells into distinct subcompartments is vital for all functional processes, and aberrant protein localization is a hallmark of many diseases. Microscopy methods, although powerful, are usually low-throughput and dependent on the availability of fluorescent fusion proteins or highly specific and sensitive antibodies. One method that provides a global picture of the cell is localization of organelle proteins by isotope tagging (LOPIT), which combines biochemical cell fractionation using density gradient ultracentrifugation with multiplexed quantitative proteomics mass spectrometry, allowing simultaneous determination of the steady-state distribution of hundreds of proteins within organelles...
June 2017: Nature Protocols
https://www.readbyqxmd.com/read/28336136/antimicrobial-susceptibility-of-2906-pseudomonasaeruginosa-clinical-isolates-obtained-from-patients-in-canadian-hospitals-over-a-period-of-8-years-results-of-the-canadian-ward-surveillance-study-canward-2008-2015
#5
Andrew Walkty, Philippe Lagace-Wiens, Heather Adam, Melanie Baxter, James Karlowsky, Michael R Mulvey, Melissa McCracken, George G Zhanel
Pseudomonas aeruginosa is an important nosocomial pathogen. The purpose of this study was to evaluate the antimicrobial susceptibility profile of P. aeruginosa clinical isolates obtained from inpatients and outpatients at hospitals across Canada from January 2008 to December 2015 (CANWARD Study). Susceptibility testing was performed using broth microdilution, as described by the Clinical and Laboratory Standards Institute. In total, 2906 P. aeruginosa isolates were evaluated. The percentage of isolates susceptible to common antipseudomonal antimicrobials was: colistin 94...
January 2017: Diagnostic Microbiology and Infectious Disease
https://www.readbyqxmd.com/read/28333355/wgs-to-predict-antibiotic-mics-for-neisseria-gonorrhoeae
#6
David W Eyre, Dilrini De Silva, Kevin Cole, Joanna Peters, Michelle J Cole, Yonatan H Grad, Walter Demczuk, Irene Martin, Michael R Mulvey, Derrick W Crook, A Sarah Walker, Tim E A Peto, John Paul
Background: Tracking the spread of antimicrobial-resistant Neisseria gonorrhoeae is a major priority for national surveillance programmes. Objectives: We investigate whether WGS and simultaneous analysis of multiple resistance determinants can be used to predict antimicrobial susceptibilities to the level of MICs in N. gonorrhoeae. Methods: WGS was used to identify previously reported potential resistance determinants in 681 N. gonorrhoeae isolates, from England, the USA and Canada, with phenotypes for cefixime, penicillin, azithromycin, ciprofloxacin and tetracycline determined as part of national surveillance programmes...
March 10, 2017: Journal of Antimicrobial Chemotherapy
https://www.readbyqxmd.com/read/28320711/a-novel-hybrid-plasmid-carrying-multiple-antimicrobial-resistance-and-virulence-genes-in-salmonella-enterica-serovar-dublin
#7
Chand S Mangat, Sadjia Bekal, Rebecca J Irwin, Michael R Mulvey
Virulence plasmids and antibiotic resistance plasmids are usually maintained separately in Salmonella spp.; however, we report an instance of a hybrid plasmid (pN13-01125) in Salmonella enterica serovar Dublin. Review of the complete sequence of the 172,265-bp plasmid suggests that pN13-01125 is comprised of the previously described pSDVr and pSH696_135 plasmids and that the mechanism of hybridization likely involves IS6 (IS26) insertion sequence elements. The plasmid has a low conjugation frequency, confers resistance to six classes of antimicrobials, and contains a complete spv virulence operon...
June 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28223374/enterobacter-cloacae-complex-isolates-harboring-blanmc-a-or-blaimi-type-class-a-carbapenemase-genes-on-novel-chromosomal-integrative-elements-and-plasmids
#8
David A Boyd, Laura F Mataseje, Ross Davidson, Johannes A Delport, Jeff Fuller, Linda Hoang, Brigitte Lefebvre, Paul N Levett, Diane L Roscoe, Barbara M Willey, Michael R Mulvey
Carbapenem-resistant Enterobacter cloacae complex isolates submitted to a reference laboratory from 2010 to 2015 were screened by PCR for seven common carbapenemase gene groups, namely, KPC, NDM, OXA-48, VIM, IMP, GES, and NMC-A/IMI. Nineteen of the submitted isolates (1.7%) were found to harbor Ambler class A blaNMC-A or blaIMI-type carbapenemases. All 19 isolates were resistant to at least one carbapenem but susceptible to aminoglycosides, trimethoprim-sulfamethoxazole, tigecycline, and ciprofloxacin. Most isolates (17/19) gave positive results with the Carba-NP test for phenotypic carbapenemase detection...
May 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28137797/a-whole-genome-sequencing-approach-to-study-cefoxitin-resistant-salmonella-enterica-serovar-heidelberg-isolates-from-various-sources
#9
Romaine Edirmanasinghe, Rita Finley, E Jane Parmley, Brent P Avery, Carolee Carson, Sadjia Bekal, George Golding, Michael R Mulvey
This study characterized cefoxitin-resistant and -susceptible Salmonella enterica serovar Heidelberg strains from humans, abattoir poultry, and retail poultry to assess the molecular relationships of isolates from these sources in Québec in 2012. Isolates were collected as part of the Canadian Integrated Program for Antimicrobial Resistance Surveillance (CIPARS). All isolates were subjected to antimicrobial susceptibility testing, PCR for CMY-2, pulsed-field gel electrophoresis (PFGE), and whole-genome sequencing (WGS)...
April 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28018876/frequency-of-mcr-1-mediated-colistin-resistance-among-escherichia-coli-clinical-isolates-obtained-from-patients-in-canadian-hospitals-canward-2008-2015
#10
Andrew Walkty, James A Karlowsky, Heather J Adam, Philippe Lagacé-Wiens, Melanie Baxter, Michael R Mulvey, Melissa McCracken, Susan M Poutanen, Diane Roscoe, George G Zhanel
BACKGROUND: Colistin is often used as an antimicrobial of last resort for the treatment of infections caused by multidrug-resistant gram-negative bacilli. In 2015, plasmid-mediated colistin resistance in Escherichia coli due to MCR-1 was described. The purpose of this study was to evaluate the frequency of colistin resistance among E. coli clinical isolates obtained from patients in Canadian hospitals as part of the Canadian Ward Surveillance Study (CANWARD) and to determine how often the mcr-1 gene is detected among the colistin-resistant subset...
October 2016: CMAJ Open
https://www.readbyqxmd.com/read/27884691/aapt-diagnostic-criteria-for-chronic-cancer-pain-conditions
#11
REVIEW
Judith A Paice, Matt Mulvey, Michael Bennett, Patrick M Dougherty, John T Farrar, Patrick W Mantyh, Christine Miaskowski, Brian Schmidt, Thomas J Smith
Chronic cancer pain is a serious complication of malignancy or its treatment. Currently, no comprehensive, universally accepted cancer pain classification system exists. Clarity in classification of common cancer pain syndromes would improve clinical assessment and management. Moreover, an evidence-based taxonomy would enhance cancer pain research efforts by providing consistent diagnostic criteria, ensuring comparability across clinical trials. As part of a collaborative effort between the Analgesic, Anesthetic, and Addiction Clinical Trial Translations, Innovations, Opportunities, and Networks (ACTTION) and the American Pain Society (APS), the ACTTION-APS Pain Taxonomy initiative worked to develop the characteristics of an optimal diagnostic system...
March 2017: Journal of Pain: Official Journal of the American Pain Society
https://www.readbyqxmd.com/read/27626624/opioid-prescribing-for-patients-with-cancer-in-the-last-year-of-life-a-longitudinal-population-cohort-study
#12
Lucy Ziegler, Matthew Mulvey, Alison Blenkinsopp, Duncan Petty, Michael I Bennett
We linked UK cancer registry data with the corresponding electronic primary care medical records of 6080 patients who died of cancer over a 7-year period in a large United Kingdom city. We extracted all prescriptions for analgesics issued to each patient in the linked cohort during the 12 months before death and analysed the extent and duration of strong opioid treatment with clinical and patient characteristics. Strong opioids were prescribed for 48% of patients in the last year of life. Median interval between first prescription of a strong opioid and death was 9 weeks (interquartile range 3-23)...
November 2016: Pain
https://www.readbyqxmd.com/read/27609929/complete-genome-sequences-of-neisseria-gonorrhoeae-with-coresistance-to-first-line-antimicrobials
#13
Amrita Bharat, Irene Martin, Walter Demczuk, Vanessa Allen, David Haldane, Linda Hoang, Michael R Mulvey
Neisseria gonorrhoeae strains with coresistance to the first-line antimicrobial treatments azithromycin and ceftriaxone are an emerging public health threat. Here, we present the complete genome sequences of three strains of N. gonorrhoeae, including one susceptible strain and two strains with coresistance to ceftriaxone and azithromycin.
2016: Genome Announcements
https://www.readbyqxmd.com/read/27600052/results-from-the-canadian-nosocomial-infection-surveillance-program-on-carbapenemase-producing-enterobacteriaceae-2010-to-2014
#14
Laura F Mataseje, Kahina Abdesselam, Julie Vachon, Robyn Mitchel, Elizabeth Bryce, Diane Roscoe, David A Boyd, Joanne Embree, Kevin Katz, Pamela Kibsey, Andrew E Simor, Geoffrey Taylor, Nathalie Turgeon, Joanne Langley, Denise Gravel, Kanchana Amaratunga, Michael R Mulvey
Carbapenemase-producing Enterobacteriaceae (CPE) are increasing globally; here we report on the investigation of CPE in Canada over a 5-year period. Participating acute care facilities across Canada submitted carbapenem-nonsusceptible Enterobacteriaceae from 1 January 2010 to 31 December 2014 to the National Microbiology Laboratory. All CPE were characterized by antimicrobial susceptibilities, pulsed-field gel electrophoresis, multilocus sequence typing, and plasmid restriction fragment length polymorphism analysis and had patient data collected using a standard questionnaire...
November 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27468684/deconvoluting-hepatic-processing-of-carbon-nanotubes
#15
Simone Alidori, Robert L Bowman, Dmitry Yarilin, Yevgeniy Romin, Afsar Barlas, J Justin Mulvey, Sho Fujisawa, Ke Xu, Alessandro Ruggiero, Vladimir Riabov, Daniel L J Thorek, Hans David S Ulmert, Elliott J Brea, Katja Behling, Julia Kzhyshkowska, Katia Manova-Todorova, David A Scheinberg, Michael R McDevitt
Single-wall carbon nanotubes present unique opportunities for drug delivery, but have not advanced into the clinic. Differential nanotube accretion and clearance from critical organs have been observed, but the mechanism not fully elucidated. The liver has a complex cellular composition that regulates a range of metabolic functions and coincidently accumulates most particulate drugs. Here we provide the unexpected details of hepatic processing of covalently functionalized nanotubes including receptor-mediated endocytosis, cellular trafficking and biliary elimination...
2016: Nature Communications
https://www.readbyqxmd.com/read/27366181/characterization-of-clostridium-difficile-strains-in-british-columbia-canada-a-shift-from-nap1-majority-2008-to-novel-strain-types-2013-in-one-region
#16
Agatha N Jassem, Natalie Prystajecky, Fawziah Marra, Pamela Kibsey, Kennard Tan, Patricia Umlandt, Loretta Janz, Sylvie Champagne, Bruce Gamage, George R Golding, Michael R Mulvey, Bonnie Henry, Linda M N Hoang
Background. Clostridium difficile is a major cause of gastrointestinal illness. Epidemic NAP1 strains contain toxins A and B, a deletion in repressor tcdC, and a binary toxin. Objectives. To determine the molecular epidemiology of C. difficile in British Columbia and compare between two time points in one region. Methods. C. difficile isolates from hospital and community laboratories (2008) and one Island Health hospital laboratory (2013) were characterized by pulsed-field gel electrophoresis, PCR-ribotyping, toxin possession, tcdC genotype, and antimicrobial susceptibility...
2016: Canadian Journal of Infectious Diseases & Medical Microbiology
https://www.readbyqxmd.com/read/27107107/erratum-for-mangat-et-al-characterization-of-vcc-1-a-novel-ambler-class-a-carbapenemase-from-vibrio-cholerae-isolated-from-imported-retail-shrimp-sold-in-canada
#17
Chand S Mangat, David Boyd, Nicol Janecko, Sarah-Lynn Martz, Andrea Desruisseau, Michael Carpenter, Richard J Reid-Smith, Michael R Mulvey
No abstract text is available yet for this article.
May 2016: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/27019455/a-study-of-the-infant-nasal-microbiome-development-over-the-first-year-of-life-and-in-relation-to-their-primary-adult-caregivers-using-cpn60-universal-target-ut-as-a-phylogenetic-marker
#18
Shelley W Peterson, Natalie C Knox, George R Golding, Shaun D Tyler, Andrea D Tyler, Philip Mabon, Joanne E Embree, Fiona Fleming, Sergio Fanella, Gary Van Domselaar, Michael R Mulvey, Morag R Graham
Whereas the infant gut microbiome is the subject of intense study, relatively little is known regarding the nares microbiome in newborns and during early life. This study aimed to survey the typical composition and diversity of human anterior nare microflora for developing infants over time, and to explore how these correlate to their primary caregivers. Single nare swabs were collected at five time points over a one-year period for each subject from infant-caregiver pairs. Our study comprised of 50 infants (recruited at 2 weeks, post delivery) and their 50 primary caregivers...
2016: PloS One
https://www.readbyqxmd.com/read/26973154/underconnected-but-not-broken-dynamic-functional-connectivity-mri-shows-underconnectivity-in-autism-is-linked-to-increased-intra-individual-variability-across-time
#19
Maryam Falahpour, Wesley K Thompson, Angela E Abbott, Afrooz Jahedi, Mark E Mulvey, Michael Datko, Thomas T Liu, Ralph-Axel Müller
Autism spectrum disorder (ASD) is characterized by core sociocommunicative impairments. Atypical intrinsic functional connectivity (iFC) has been reported in numerous studies of ASD. A majority of findings has indicated long-distance underconnectivity. However, fMRI studies have thus far exclusively examined static iFC across several minutes of scanning. We examined temporal variability of iFC, using sliding window analyses in selected high-quality (low-motion) consortium datasets from 76 ASD and 76 matched typically developing (TD) participants (Study 1) and in-house data from 32 ASD and 32 TD participants...
June 2016: Brain Connectivity
https://www.readbyqxmd.com/read/26935729/genomic-epidemiology-and-molecular-resistance-mechanisms-of-azithromycin-resistant-neisseria-gonorrhoeae-in-canada-from-1997-to-2014
#20
Walter Demczuk, Irene Martin, Shelley Peterson, Amrita Bharat, Gary Van Domselaar, Morag Graham, Brigitte Lefebvre, Vanessa Allen, Linda Hoang, Greg Tyrrell, Greg Horsman, John Wylie, David Haldane, Chris Archibald, Tom Wong, Magnus Unemo, Michael R Mulvey
The emergence of Neisseria gonorrhoeae strains with decreased susceptibility to cephalosporins and azithromycin (AZM) resistance (AZM(r)) represents a public health threat of untreatable gonorrhea infections. Genomic epidemiology through whole-genome sequencing was used to describe the emergence, dissemination, and spread of AZM(r) strains. The genomes of 213 AZM(r) and 23 AZM-susceptible N. gonorrhoeae isolates collected in Canada from 1989 to 2014 were sequenced. Core single nucleotide polymorphism (SNP) phylogenomic analysis resolved 246 isolates into 13 lineages...
May 2016: Journal of Clinical Microbiology
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