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https://www.readbyqxmd.com/read/28505002/immunohistochemical-classification-of-ampullary-carcinomas-critical-reappraisal-fails-to-confirm-prognostic-relevance-for-recently-proposed-panels-and-highlights-muc5ac-as-a-strong-prognosticator
#1
Yue Xue, Michelle D Reid, Serdar Balci, Brian Quigley, Takashi Muraki, Bahar Memis, Jun Xia, Ezgi Hacihasanoglu, Gabriela Bedolla, Burcin Pehlivanoglu, Grace E Kim, Takuma Tajiri, Nobuyike Ohike, Ritu Aneja, Alyssa M Krasinskas, Volkan Adsay
Recently, immunohistochemistry-based classifications of ampullary carcinomas have been proposed (Ang and colleagues [PMID: 24832159]; Chang and colleagues [PMID: 23439753]). In this study, the prognostic value of Ang/Chang panel markers (CK20, MUC1, MUC2, CDX2) as well as other markers (CK7, MUC5AC, and MUC6) were tested on full-faced sections of 136 ampullary carcinoma resections with substantial (>5 mm) invasion. Immunohistochemistry was correlated with both histologic classification (intestinal [INT], pancreatobiliary [PB], or nontubular based on ≥3/5 observer agreement) and clinical outcome...
May 12, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28500955/economic-evaluation-of-nurse-practitioner-and-clinical-nurse-specialist-roles-a-methodological-review
#2
Elena Lopatina, Faith Donald, Alba DiCenso, Ruth Martin-Misener, Kelley Kilpatrick, Denise Bryant-Lukosius, Nancy Carter, Kim Reid, Deborah A Marshall
BACKGROUND: Advanced practice nurses (e.g., nurse practitioners and clinical nurse specialists) have been introduced internationally to increase access to high quality care and to tackle increasing health care expenditures. While randomised controlled trials and systematic reviews have demonstrated the effectiveness of nurse practitioner and clinical nurse specialist roles, their cost-effectiveness has been challenged. The poor quality of economic evaluations of these roles to date raises the question of whether current economic evaluation guidelines are adequate when examining their cost-effectiveness...
May 4, 2017: International Journal of Nursing Studies
https://www.readbyqxmd.com/read/28490924/improving-molecular-testing-and-personalized-medicine-in-non-small-cell-lung-cancer-in-ontario
#3
C Lim, H S Sekhon, J C Cutz, D M Hwang, S Kamel-Reid, R F Carter, G da Cunha Santos, T Waddell, M Binnie, M Patel, N Paul, T Chung, A Brade, R El-Maraghi, C Sit, M S Tsao, N B Leighl
BACKGROUND: Although molecular testing has become standard in managing advanced nonsquamous non-small-cell lung cancer (nsclc), most patients undergo minimally invasive procedures, and the diagnostic tumour specimens available for testing are usually limited. A knowledge translation initiative to educate diagnostic specialists about sampling techniques and laboratory processes was undertaken to improve the uptake and application of molecular testing in advanced lung cancer. METHODS: A multidisciplinary panel of physician experts including pathologists, respirologists, interventional thoracic radiologists, thoracic surgeons, medical oncologists, and radiation oncologists developed a specialty-specific education program, adapting international clinical guidelines to the local Ontario context...
April 2017: Current Oncology
https://www.readbyqxmd.com/read/28448118/diamide-inhibitors-of-the-bacillus-subtilis-n-acetylglucosaminidase-lytg-that-exhibit-antibacterial-activity
#4
Saman Nayyab, Mary O'Connor, Jennifer Brewster, James Gravier, Mitchell Jamieson, Ethan Magno, Ryan D Miller, Drew Phelan, Keyana Roohani, Paul Williard, Amit Basu, Christopher W Reid
N-Acetylglucosaminidases (GlcNAcases) play an important role in the remodeling and recycling of bacterial peptidoglycan by degrading the polysaccharide backbone. Genetic deletions of autolysins can impair cell division and growth, suggesting an opportunity for using small molecule autolysin inhibitors both as tools for studying the chemical biology of autolysins and also as antibacterial agents. We report here the synthesis and evaluation of a panel of diamides that inhibit the growth of Bacillus subtilis. Two compounds, fgkc (21) and fgka (5), were found to be potent inhibitors (MIC 3...
May 8, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28357154/vaccine-hesitancy-in-search-of-the-risk-communication-comfort-zone
#5
Joshua Greenberg, Eve Dubé, Michelle Driedger
INTRODUCTION: This paper reports the findings of a national online survey to parents of children aged 5 and younger. The objectives of the study were to assess parental understanding of childhood immunizations, identify sources of information that they trust for vaccine-related content, assess where parents with young children stand on the key issues in the public debate about vaccination, and identify which risk communication messages are most effective for influencing the behaviours of vaccine hesitant parents...
March 3, 2017: PLoS Currents
https://www.readbyqxmd.com/read/28341590/guidelines-for-validation-of-next-generation-sequencing-based-oncology-panels-a-joint-consensus-recommendation-of-the-association-for-molecular-pathology-and-college-of-american-pathologists
#6
REVIEW
Lawrence J Jennings, Maria E Arcila, Christopher Corless, Suzanne Kamel-Reid, Ira M Lubin, John Pfeifer, Robyn L Temple-Smolkin, Karl V Voelkerding, Marina N Nikiforova
Next-generation sequencing (NGS) methods for cancer testing have been rapidly adopted by clinical laboratories. To establish analytical validation best practice guidelines for NGS gene panel testing of somatic variants, a working group was convened by the Association of Molecular Pathology with liaison representation from the College of American Pathologists. These joint consensus recommendations address NGS test development, optimization, and validation, including recommendations on panel content selection and rationale for optimization and familiarization phase conducted before test validation; utilization of reference cell lines and reference materials for evaluation of assay performance; determining of positive percentage agreement and positive predictive value for each variant type; and requirements for minimal depth of coverage and minimum number of samples that should be used to establish test performance characteristics...
May 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/28329340/baseline-characteristics-of-participants-in-the-aspree-aspirin-in-reducing-events-in-the-elderly-study
#7
John J McNeil, Robyn L Woods, Mark R Nelson, Anne M Murray, Christopher M Reid, Brenda Kirpach, Elsdon Storey, Raj C Shah, Rory S Wolfe, Andrew M Tonkin, Anne B Newman, Jeff D Williamson, Jessica E Lockery, Karen L Margolis, Michael E Ernst, Walter P Abhayaratna, Nigel Stocks, Sharyn M Fitzgerald, Ruth E Trevaks, Suzanne G Orchard, Lawrence J Beilin, Geoffrey A Donnan, Peter Gibbs, Colin I Johnston, Richard H Grimm
Background: There are no primary prevention trials of aspirin with relevant geriatric outcomes in elderly people. ASPirin in Reducing Events in the Elderly (ASPREE) is a placebo-controlled trial of low-dose aspirin that will determine whether 5 years of daily 100-mg enteric-coated aspirin extends disability-free and dementia-free life in a healthy elderly population and whether these benefits outweigh the risks. Methods: Set in primary care, this randomized double-blind placebo-controlled trial has a composite primary endpoint of death, incident dementia or persistent physical disability...
January 20, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28217853/use-of-cytological-samples-of-metastatic-melanoma-for-ancillary-studies
#8
H M Ko, M A Saieg, G da Cunha Santos, S Kamel-Reid, S L Boerner, W R Geddie
OBJECTIVE: Fine needle aspiration (FNA) is widely used in the diagnosis of metastatic melanoma, both at initial presentation and in the setting of recurrent disease. The purpose of this study was to evaluate the performance of confirmatory immunohistochemistry (IHC) and molecular analysis of the BRAF mutation in cytological preparations of metastatic melanoma. METHODS: A 2-year retrospective review of pathology reports was performed on cytological samples of metastatic melanoma at the University Health Network (Toronto, Canada) and the Santa Casa Medical School (Sao Paulo, Brazil)...
February 20, 2017: Cytopathology: Official Journal of the British Society for Clinical Cytology
https://www.readbyqxmd.com/read/28062115/genotype-matched-treatment-for-patients-with-advanced-type-i-epithelial-ovarian-cancer-eoc
#9
A Spreafico, A M Oza, B A Clarke, H J Mackay, P Shaw, M Butler, N C Dhani, S Lheureux, M K Wilson, S Welch, T Zhang, C Yu, T Stockley, L L Siu, S Kamel-Reid, P L Bedard
BACKGROUND: Genomic alterations that activate the MAPK signaling pathway frequently occur in Type I Epithelial Ovarian Cancers (EOCs). We evaluated therapeutic response outcomes in patients with type I EOC treated with genotype-matched therapy on clinical trials enrolled in a prospective molecular profiling program. MATERIAL AND METHODS: Formalin fixed paraffin embedded tumor tissues were prospectively screened for genomic alterations using MALDI-ToF mass-spectrometry platform or targeted sequencing using the Illumina MiSeq TruSeq Amplicon Cancer Panel...
January 3, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/27994733/identification-synthesis-and-biological-evaluation-of-the-major-human-metabolite-of-nlrp3-inflammasome-inhibitor-mcc950
#10
Manohar Salla, Mark S Butler, Ruby Pelingon, Geraldine Kaeslin, Daniel E Croker, Janet C Reid, Jong Min Baek, Paul V Bernhardt, Elizabeth M J Gillam, Matthew A Cooper, Avril A B Robertson
MCC950 is an orally bioavailable small molecule inhibitor of the NOD-like receptor pyrin domain-containing protein 3 (NLRP3) inflammasome that exhibits remarkable activity in multiple models of inflammatory disease. Incubation of MCC950 with human liver microsomes, and subsequent analysis by HPLC-MS/MS, revealed a major metabolite, where hydroxylation of MCC950 had occurred on the 1,2,3,5,6,7-hexahydro-s-indacene moiety. Three possible regioisomers were synthesized, and coelution using HPLC-MS/MS confirmed the structure of the metabolite...
December 8, 2016: ACS Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27920973/consumption-of-caffeinated-energy-drinks-among-youth-and-young-adults-in-canada
#11
Jessica L Reid, Cassondra McCrory, Christine M White, Chantal Martineau, Pat Vanderkooy, Nancy Fenton, David Hammond
The growing market for caffeinated energy drinks (CEDs) has caused concern about excessive caffeine intake and potential adverse effects, particularly among young people. The current study examined patterns of CED consumption among youth and young adults in Canada, using data from a national online survey conducted in October 2014. Data from a non-probability sample of 2040 respondents aged 12-24 from a consumer panel was weighted to national proportions; measures of CED consumption were estimated, including prevalence, excessive daily consumption, and context for use (locations and reasons)...
March 2017: Preventive Medicine Reports
https://www.readbyqxmd.com/read/27897004/identifying-genetic-associations-with-variability-in-metabolic-health-and-blood-count-laboratory-values-diving-into-the-quantitative-traits-by-leveraging-longitudinal-data-from-an-ehr
#12
Shefali S Verma, Anastasia M Lucas, Daniel R Lavage, Joseph B Leader, Raghu Metpally, Sarathbabu Krishnamurthy, Frederick Dewey, Ingrid Borecki, Alexander Lopez, John Overton, John Penn, Jeffrey Reid, Sarah A Pendergrass, Gerda Breitwieser, Marylyn D Ritchie
A wide range of patient health data is recorded in Electronic Health Records (EHR). This data includes diagnosis, surgical procedures, clinical laboratory measurements, and medication information. Together this information reflects the patient's medical history. Many studies have efficiently used this data from the EHR to find associations that are clinically relevant, either by utilizing International Classification of Diseases, version 9 (ICD-9) codes or laboratory measurements, or by designing phenotype algorithms to extract case and control status with accuracy from the EHR...
2016: Pacific Symposium on Biocomputing
https://www.readbyqxmd.com/read/27782854/molecular-profiling-of-advanced-solid-tumors-and-patient-outcomes-with-genotype-matched-clinical-trials-the-princess-margaret-impact-compact-trial
#13
Tracy L Stockley, Amit M Oza, Hal K Berman, Natasha B Leighl, Jennifer J Knox, Frances A Shepherd, Eric X Chen, Monika K Krzyzanowska, Neesha Dhani, Anthony M Joshua, Ming-Sound Tsao, Stefano Serra, Blaise Clarke, Michael H Roehrl, Tong Zhang, Mahadeo A Sukhai, Nadia Califaretti, Mateya Trinkaus, Patricia Shaw, Theodorus van der Kwast, Lisa Wang, Carl Virtanen, Raymond H Kim, Albiruni R A Razak, Aaron R Hansen, Celeste Yu, Trevor J Pugh, Suzanne Kamel-Reid, Lillian L Siu, Philippe L Bedard
BACKGROUND: The clinical utility of molecular profiling of tumor tissue to guide treatment of patients with advanced solid tumors is unknown. Our objectives were to evaluate the frequency of genomic alterations, clinical "actionability" of somatic variants, enrollment in mutation-targeted or other clinical trials, and outcome of molecular profiling for advanced solid tumor patients at the Princess Margaret Cancer Centre (PM). METHODS: Patients with advanced solid tumors aged ≥18 years, good performance status, and archival tumor tissue available were prospectively consented...
October 25, 2016: Genome Medicine
https://www.readbyqxmd.com/read/27770852/comparison-of-next-generation-sequencing-panels-and-platforms-for-detection-and-verification-of-somatic-tumor-variants-for-clinical-diagnostics
#14
Maksym Misyura, Tong Zhang, Mahadeo A Sukhai, Mariam Thomas, Swati Garg, Suzanne Kamel-Reid, Tracy L Stockley
Use of next-generation sequencing to detect somatic variants in DNA extracted from formalin-fixed, paraffin-embedded tumor tissues poses a challenge for clinical molecular diagnostic laboratories because of variable DNA quality and quantity, and the potential to detect low allele frequency somatic variants difficult to verify by non-next-generation sequencing methods. We evaluated somatic variant detection performance of the MiSeq and Ion Proton benchtop sequencers using two commercially available panels, the TruSeq Amplicon Cancer Panel and the AmpliSeq Cancer Hotspot Panel Version 2...
November 2016: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/27769621/discovery-of-imidazopyridazines-as-potent-pim-1-2-kinase-inhibitors
#15
Ryan P Wurz, Christine Sastri, Derin C D'Amico, Brad Herberich, Claire L M Jackson, Liping H Pettus, Andrew S Tasker, Bin Wu, Nadia Guerrero, J Russell Lipford, Jeffrey T Winston, Yajing Yang, Paul Wang, Yen Nguyen, Kristin L Andrews, Xin Huang, Matthew R Lee, Christopher Mohr, J D Zhang, Darren L Reid, Yang Xu, Yihong Zhou, Hui-Ling Wang
High levels of Pim expression have been implicated in several hematopoietic and solid tumor cancers, suggesting that inhibition of Pim signaling could provide patients with therapeutic benefit. Herein, we describe our progress towards this goal using a screening hit (rac-1) as a starting point. Modification of the indazole ring resulted in the discovery of a series of imidazopyridazine-based Pim inhibitors exemplified by compound 22m, which was found to be a subnanomolar inhibitor of the Pim-1 and Pim-2 isoforms (IC50 values of 0...
November 15, 2016: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/27604308/advantages-and-pitfalls-of-an-extended-gene-panel-for-investigating-complex-neurometabolic-phenotypes
#16
Emma S Reid, Apostolos Papandreou, Suzanne Drury, Christopher Boustred, Wyatt W Yue, Yehani Wedatilake, Clare Beesley, Thomas S Jacques, Glenn Anderson, Lara Abulhoul, Alex Broomfield, Maureen Cleary, Stephanie Grunewald, Sophia M Varadkar, Nick Lench, Shamima Rahman, Paul Gissen, Peter T Clayton, Philippa B Mills
Neurometabolic disorders are markedly heterogeneous, both clinically and genetically, and are characterized by variable neurological dysfunction accompanied by suggestive neuroimaging or biochemical abnormalities. Despite early specialist input, delays in diagnosis and appropriate treatment initiation are common. Next-generation sequencing approaches still have limitations but are already enabling earlier and more efficient diagnoses in these patients. We designed a gene panel targeting 614 genes causing inborn errors of metabolism and tested its diagnostic efficacy in a paediatric cohort of 30 undiagnosed patients presenting with variable neurometabolic phenotypes...
September 6, 2016: Brain: a Journal of Neurology
https://www.readbyqxmd.com/read/27581193/characterizing-the-population-structure-and-genetic-diversity-of-maize-breeding-germplasm-in-southwest-china-using-genome-wide-snp-markers
#17
Xiao Zhang, Hua Zhang, Lujiang Li, Hai Lan, Zhiyong Ren, Dan Liu, Ling Wu, Hailan Liu, Jennifer Jaqueth, Bailin Li, Guangtang Pan, Shibin Gao
BACKGROUND: Maize breeding germplasm used in Southwest China has high complexity because of the diverse ecological features of this area. In this study, the population structure, genetic diversity, and linkage disequilibrium decay distance of 362 important inbred lines collected from the breeding program of Southwest China were characterized using the MaizeSNP50 BeadChip with 56,110 single nucleotide polymorphisms (SNPs). RESULTS: With respect to population structure, two (Tropical and Temperate), three (Tropical, Stiff Stalk and non-Stiff Stalk), four [Tropical, group A germplasm derived from modern U...
2016: BMC Genomics
https://www.readbyqxmd.com/read/27552071/newborn-screening-a-review-of-history-recent-advancements-and-future-perspectives-in-the-era-of-next-generation-sequencing
#18
Mohammed Almannai, Ronit Marom, V Reid Sutton
PURPOSE OF REVIEW: The purpose of this review is to summarize the development and recent advancements of newborn screening. RECENT FINDINGS: Early initiation of medical care has modified the outcome for many disorders that were previously associated with high morbidity (such as cystic fibrosis, primary immune deficiencies, and inborn errors of metabolism) or with significant neurodevelopmental disabilities (such as phenylketonuria and congenital hypothyroidism)...
December 2016: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/27496117/genetic-familial-high-risk-assessment-colorectal-version-1-2016-nccn-clinical-practice-guidelines-in-oncology
#19
Dawn Provenzale, Samir Gupta, Dennis J Ahnen, Travis Bray, Jamie A Cannon, Gregory Cooper, Donald S David, Dayna S Early, Deborah Erwin, James M Ford, Francis M Giardiello, William Grady, Amy L Halverson, Stanley R Hamilton, Heather Hampel, Mohammad K Ismail, Jason B Klapman, David W Larson, Audrey J Lazenby, Patrick M Lynch, Robert J Mayer, Reid M Ness, Scott E Regenbogen, Niloy Jewel Samadder, Moshe Shike, Gideon Steinbach, David Weinberg, Mary Dwyer, Susan Darlow
This is a focused update highlighting the most current NCCN Guidelines for diagnosis and management of Lynch syndrome. Lynch syndrome is the most common cause of hereditary colorectal cancer, usually resulting from a germline mutation in 1 of 4 DNA mismatch repair genes (MLH1, MSH2, MSH6, or PMS2), or deletions in the EPCAM promoter. Patients with Lynch syndrome are at an increased lifetime risk, compared with the general population, for colorectal cancer, endometrial cancer, and other cancers, including of the stomach and ovary...
August 2016: Journal of the National Comprehensive Cancer Network: JNCCN
https://www.readbyqxmd.com/read/27443194/assessment-of-progressively-delayed-prompts-on-guided-skill-learning-in-rats
#20
Alliston K Reid, Sara E Futch, Katherine M Ball, Aubrey G Knight, Martha Tucker
We examined the controlling factors that allow a prompted skill to become autonomous in a discrete-trials implementation of Touchette's (1971) progressively delayed prompting procedure, but our subjects were rats rather than children with disabilities. Our prompted skill was a left-right lever-press sequence guided by two panel lights. We manipulated (a) the effectiveness of the guiding lights prompt and (b) the presence or absence of a progressively delayed prompt in four groups of rats. The less effective prompt yielded greater autonomy than the more effective prompt...
March 2017: Learning & Behavior
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