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https://www.readbyqxmd.com/read/28550058/whole-genome-and-core-genome-multilocus-sequence-typing-and-single-nucleotide-polymorphism-analyses-of-listeria-monocytogenes-associated-with-an-outbreak-linked-to-cheese-united-states-2013
#1
Yi Chen, Yan Luo, Heather Carleton, Ruth Timme, David Melka, Tim Muruvanda, Charles Wang, George Kastanis, Lee S Katz, Lauren Turner, Angela Fritzinger, Terence Moore, Robert Stones, Joseph Blankenship, Monique Salter, Mickey Parish, Thomas S Hammack, Peter S Evans, Cheryl L Tarr, Marc W Allard, Errol A Strain, Eric W Brown
Epidemiological findings of a listeriosis outbreak in 2013 implicated Hispanic-style cheese produced by Company A, and pulsed-field gel electrophoresis (PFGE) and whole genome sequencing (WGS) were performed on clinical isolates and representative isolates collected from Company A cheese and environmental samples during the investigation. The results strengthened the evidence for cheese as the vehicle. Surveillance sampling and WGS three months later revealed that the equipment purchased by Company B from Company A yielded an environmental isolate highly similar to all outbreak isolates...
May 26, 2017: Applied and Environmental Microbiology
https://www.readbyqxmd.com/read/28550006/virtual-visits-and-patient-centered-care-results-of-a-patient-survey-and-observational-study
#2
Kimberlyn Marie McGrail, Megan Alyssa Ahuja, Chad Andrew Leaver
BACKGROUND: Virtual visits are clinical interactions in health care that do not involve the patient and provider being in the same room at the same time. The use of virtual visits is growing rapidly in health care. Some health systems are integrating virtual visits into primary care as a complement to existing modes of care, in part reflecting a growing focus on patient-centered care. There is, however, limited empirical evidence about how patients view this new form of care and how it affects overall health system use...
May 26, 2017: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/28549336/evaluation-of-a-new-random-access-hbv-dna-molecular-assay-the-veris-hbv-assay
#3
Slim Fourati, Dominique Challine, Jean-Dominique Poveda, Syria Laperche, Sandrine Rallier, Jean-Michel Pawlotsky, Stéphane Chevaliez
BACKGROUND: Detection and quantification of HBV DNA are essential to diagnose chronic HBV infection, monitor the virological response to treatment and the possible selection of resistant viruses in order to tailor therapy. The VERIS/MDx System HBV Assay is a random-access system that quantifies HBV DNA in clinical samples using unique single sample and reagent access during the workflow process without the need to reload other tests and delivers results within 1.2h following sampling...
May 17, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28548205/reflections-on-klein-s-radical-notion-of-phantasy-and-its-implications-for-analytic-practice
#4
Rachel B Blass
Analysts may incorporate many of Melanie Klein's important contributions (e.g., on preoedipal dynamics, envy, and projective identification) without transforming their basic analytic approach. In this paper I argue that adopting the Kleinian notion of unconscious phantasy is transformative. While it is grounded in Freud's thinking and draws out something essential to his work, this notion of phantasy introduces a radical change that defines Kleinian thinking and practice and significantly impacts the analyst's basic clinical approach...
May 26, 2017: International Journal of Psycho-analysis
https://www.readbyqxmd.com/read/28546761/spotlight-on-vismodegib-in-the-treatment-of-basal-cell-carcinoma-an-evidence-based-review-of-its-place-in-therapy
#5
REVIEW
Zoe Apalla, Chrysoula Papageorgiou, Aimilios Lallas, Elena Sotiriou, Elizabeth Lazaridou, Efstratios Vakirlis, Athanassios Kyrgidis, Demetrios Ioannides
Vismodegib is approved for the treatment of adult patients with metastatic (mBCC) or locally advanced basal cell carcinoma (laBCC) that have recurred following surgery or for those who are not good candidates for surgery (risk/benefit ratio is against patient's benefit, either because of the general condition or because of the expected morbidity from the surgery) or radiation therapy. This article provides an evidence-based review of its current place in therapy. Analytically, the clinical implications in the management of laBCCs and mBCCs and possible new indications, including the neoadjuvant use before surgical excision, are discussed, while in the end, the challenges regarding class-related adverse events and their optimal management are highlighted...
2017: Clinical, Cosmetic and Investigational Dermatology
https://www.readbyqxmd.com/read/28545929/a-simple-hplc-uv-method-for-quantification-of-enzalutamide-and-its-active-metabolite-n-desmethyl-enzalutamide-in-patients-with-metastatic-castration-resistant-prostate-cancer
#6
Alicja Puszkiel, Alain Plé, Olivier Huillard, Gaëlle Noé, Constance Thibault, Stéphane Oudard, François Goldwasser, Michel Vidal, Jérome Alexandre, Benoit Blanchet
Enzalutamide is currently approved for the treatment of patients with metastatic castration-resistant prostate cancer (mCRPC). To date, a single liquid chromatographic-tandem mass spectroscopy method is available to measure plasma enzalutamide concentrations in mCRPC patients. In this work, an accurate and sensitive HPLC-UV method has been developed for the simultaneous determination of enzalutamide and its active metabolite, N-desmethyl enzalutamide in plasma from mCRPC patients. Before precipitation of proteins with acetonitrile, samples were spiked with nilutamide (internal standard)...
April 5, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28545528/comparison-of-biomarker-based-matrix-assisted-laser-desorption-ionization-time-of-flight-mass-spectrometry-maldi-tof-ms-and-conventional-methods-in-the-identification-of-clinically-relevant-bacteria-and-yeast
#7
Ali Kassim, Valentin Pflüger, Zul Premji, Claudia Daubenberger, Gunturu Revathi
BACKGROUND: MALDI-TOF MS is an analytical method that has recently become integral in the identification of microorganisms in clinical laboratories. It relies on databases that majorly employ pattern recognition or fingerprinting. Biomarker based databases have also been developed and there is optimism that these may be superior to pattern recognition based databases. This study compared the performance of ribosomal biomarker based MALDI-TOF MS and conventional methods in the identification of selected bacteria and yeast...
May 25, 2017: BMC Microbiology
https://www.readbyqxmd.com/read/28545439/distribution-of-white-spot-lesions-among-orthodontic-patients-attending-teaching-institutes-in-khartoum
#8
Maha Kamal Eltayeb, Yahia Eltayeb Ibrahim, Ikhlas Ali El Karim, Nada Mirghani Sanhouri
BACKGROUND: Fixed orthodontic appliances render teeth cleaning arduous, thus when orthodontic treatment is associated with inadequate oral hygiene practice, development of white spot lesions (WSLs) imposes a significant risk on the dentition. Salivary reservoir of calcium, magnesium, phosphorous and fluoride counteracts demineralization and encourages remineralization providing protection against caries challenge. The investigation of the factors leading to WSLs' development is mandatory for appropriate prevention strategies planning...
May 25, 2017: BMC Oral Health
https://www.readbyqxmd.com/read/28545335/controlling-the-family-wise-error-rate-in-multi-arm-multi-stage-trials
#9
Luis A Crouch, Lori E Dodd, Michael A Proschan
BACKGROUND AND AIMS: Multi-arm, multi-stage trials have recently gained attention as a means to improve the efficiency of the clinical trials process. Many designs have been proposed, but few explicitly consider the inherent issue of multiplicity and the associated type I error rate inflation. It is our aim to propose a straightforward design that controls family-wise error rate while still providing improved efficiency. METHODS: In this article, we provide an analytical method for calculating the family-wise error rate for a multi-arm, multi-stage trial and highlight the potential for considerable error rate inflation in uncontrolled designs...
June 2017: Clinical Trials: Journal of the Society for Clinical Trials
https://www.readbyqxmd.com/read/28544622/an-investigation-into-the-two-stage-meta-analytic-copula-modelling-approach-for-evaluating-time-to-event-surrogate-endpoints-which-comprise-of-one-or-more-events-of-interest
#10
Natalie Dimier, Susan Todd
Clinical trials of experimental treatments must be designed with primary endpoints that directly measure clinical benefit for patients. In many disease areas, the recognised gold standard primary endpoint can take many years to mature, leading to challenges in the conduct and quality of clinical studies. There is increasing interest in using shorter-term surrogate endpoints as substitutes for costly long-term clinical trial endpoints; such surrogates need to be selected according to biological plausibility, as well as the ability to reliably predict the unobserved treatment effect on the long-term endpoint...
May 19, 2017: Pharmaceutical Statistics
https://www.readbyqxmd.com/read/28544059/objective-assessment-of-the-evolutionary-action-equation-for-the-fitness-effect-of-missense-mutations-across-cagi-blinded-contests
#11
Panagiotis Katsonis, Olivier Lichtarge
A major challenge in genome interpretation is to estimate the fitness effect of coding variants of unknown significance (VUS). Labor, limited understanding of protein functions, and lack of assays generally limit direct experimental assessment of VUS, and make robust and accurate computational approaches a necessity. Often, however, algorithms that predict mutational effect disagree amongst themselves and with experimental data, slowing their adoption for clinical diagnostics. To objectively assess such methods, the Critical Assessment of Genome Interpretation (CAGI) community organizes contests to predict unpublished experimental data, available only to CAGI assessors...
May 23, 2017: Human Mutation
https://www.readbyqxmd.com/read/28543958/latent-structure-of-negative-valence-measures-in-childhood
#12
Minyoung Lee, Steven H Aggen, Dever M Carney, Shannon Hahn, Elizabeth Moroney, Laura Machlin, Melissa A Brotman, Kenneth E Towbin, Ellen Leibenluft, Daniel S Pine, Roxann Roberson-Nay, John M Hettema
BACKGROUND: Internalizing disorders (IDs), consisting of the syndromes of anxiety and depression, are common, debilitating conditions often having onsets in adolescence. Scientists have developed dimensional self-report instruments that assess putative negative valence system (NVS) trait-like constructs as complimentary phenotypes to clinical symptoms. These include various measures that index temperamental predispositions to IDs and correlate with neural substrates of fear, anxiety, and affective regulation...
May 22, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28543881/a-review-of-blood-sample-handling-and-pre-processing-for-metabolomics-studies
#13
REVIEW
Vinicius Veri Hernandes, Coral Barbas, Danuta Dudzik
Metabolomics has been found to be applicable to a wide range of clinical studies, bringing a new era for improving clinical diagnostics, early disease detection, therapy prediction and treatment efficiency monitoring. A major challenge in metabolomics, particularly untargeted studies, is the extremely diverse and complex nature of biological specimens. Despite great advances in the field there still exist fundamental needs for considering pre-analytical variability that can introduce bias to the subsequent analytical process and decrease the reliability of the results and moreover confound final research outcomes...
May 19, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28543843/white-matter-biomarkers-from-fast-protocols-using-axially-symmetric-diffusion-kurtosis-imaging
#14
Brian Hansen, Ahmad R Khan, Noam Shemesh, Torben E Lund, Ryan Sangill, Simon F Eskildsen, Leif Østergaard, Sune N Jespersen
White matter tract integrity (WMTI) can characterize brain microstructure in areas with highly aligned fiber bundles. Several WMTI biomarkers have now been validated against microscopy and provided promising results in studies of brain development and aging, as well as in a number of brain disorders. Currently, WMTI is mostly used in dedicated animal studies and clinical studies of slowly progressing diseases, and has not yet emerged as a routine clinical tool. To this end, a less data intensive experimental method would be beneficial by enabling high resolution validation studies, and ease clinical applications by speeding up data acquisition compared with typical diffusion kurtosis imaging (DKI) protocols utilized as part of WMTI imaging...
May 22, 2017: NMR in Biomedicine
https://www.readbyqxmd.com/read/28543614/capillarys-2-flex-piercing-analytical-performance-assessment-according-to-clsi-protocols-for-hba1c-quantification
#15
Radhouene Doggui, Chaïma Abdelhafidh Sahli, Wassef Lotfi Aissa, Maroua Hammami, Maha Ben Sedrine, Rahma Mahjoub, Khemais Zouaoui, Rim Daboubi, Hajer Siala, Taieb Messaoud, Amina Bibi
HbA1c is used for monitoring diabetic balance. In this paper we report an assessment of the analytical performances of Capillarys 2 Flex Piercing (C2FP) for HbA1c measurement using CE (Capillary Electrophoresis). CLSI (Clinical and Laboratory Standard Institute) protocols are used for the evaluation of apparatus performances: precision, linearity, method comparison, truness and common interferences. HbA1c CVs average in intra-assay was 1.6% between run imprecision CV ranged from0.1 to 1.8%. The linearity was demonstrated between 4...
May 19, 2017: Electrophoresis
https://www.readbyqxmd.com/read/28543372/hematologic-and-biochemical-ris-for-an-aged-population-of-captive-african-green-monkeys-chlorocebus-aethiops-sabaeus
#16
Elizabeth M Scallan, Saundra H Sample, Amy M Beierschmitt, Roberta M Palmour
BACKGROUND: Established RIs for geriatric African Green monkeys (Chlorocebus aethiops sabaeus) are critical for clinical differentiation of normal aging from disease-related changes in this population. OBJECTIVE: The aim of this study was to establish hematologic and serum biochemical RIs for a Caribbean captive population of geriatric (≥ 15 years of age) African Green monkeys, or Vervets. METHODS: Inclusion and exclusion criteria were defined for a cohort of 109 healthy, aged (15- to 30-year-old, median 19-year-old) Vervets...
May 19, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28543077/homotypic-and-heterotypic-continuity-of-symptoms-of-psychiatric-disorders-from-age-4-to-10%C3%A2-years-a-dynamic-panel-model
#17
Lars Wichstrøm, Jay Belsky, Silje Steinsbekk
BACKGROUND: Childhood psychiatric disorders and their symptoms evince both within-disorder (homotypic) and between-disorder (heterotypic) continuities. These continuities may be due to earlier symptoms causing later symptoms or, alternatively, that the same (unknown) causes (e.g., genetics) are operating across time. Applying a novel data analytic approach, we disentangle these two explanations. METHODS: Participants in a Norwegian community study were assessed biennially from 4 to 10 years of age with clinical interviews (n = 1,042)...
May 23, 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
https://www.readbyqxmd.com/read/28541461/screening-with-quantification-for-64-drugs-and-metabolites-in-human-urine-using-uplc-ms-ms-analysis-and-a-threshold-accurate-calibration
#18
Thomas G Rosano, Patrice Y Ohouo, Michelle Wood
Drug and metabolite (analytes) identification together with quantification is an important analytical tool in forensic and clinical toxicology. We report the development and validation of a definitive detection and quantification method (UPLC-MS-MS) for initial screening of 64 analytes in urine. The principle of the method is a quantitative extension of a recently reported threshold accurate calibration (TAC) technique which employs a rapid dual-specimen analysis i.e., with and without addition of a reference-analyte standard for normalization of matrix effects...
May 24, 2017: Journal of Analytical Toxicology
https://www.readbyqxmd.com/read/28540853/determination-of-serum-albumin-analytical-challenges-a-french-multicenter-study
#19
Adrien Rossary, Françoise Blondé-Cynober, Jean-Philippe Bastard, Marie-Christine Beauvieux, Pascale Beyne, Jocelyne Drai, Christine Lombard, Ingrid Anglard, Christian Aussel, Sophie Claeyssens, Marie-Paule Vasson
Among the biological markers of morbidity and mortality, albumin holds a key place in the range of criteria used by the High Authority for Health (HAS) for the assessment of malnutrition and the coding of information system medicalization program (PMSI). If the principle of quantification methods have not changed in recent years, the dispersion of external evaluations of the quality (EEQ) data shows that the standardization using the certified reference material (CRM) 470 is not optimal. The aim of this multicenter study involving 7 sites, conducted by a working group of the French Society of Clinical Biology (SFBC), was to assess whether the albuminemia values depend on the analytical system used...
June 1, 2017: Annales de Biologie Clinique
https://www.readbyqxmd.com/read/28540447/treatment-effect-on-recidivism-for-juveniles-who-have-sexually-offended-a-multilevel-meta-analysis
#20
REVIEW
Ellis Ter Beek, Anouk Spruit, Chris H Z Kuiper, Rachel E A van der Rijken, Jan Hendriks, Geert Jan J M Stams
The current study investigated the effect on recidivism of treatment aimed at juveniles who have sexually offended. It also assessed the potential moderating effect of type of recidivism, and several treatment, participant and study characteristics. In total, 14 published and unpublished primary studies, making use of a comparison group and reporting on official recidivism rates, were included in a multilevel meta-analysis. This resulted in the use of 77 effect sizes, and 1726 participants. A three-level meta-analytic model was used to calculate the combined effect sizes (Cohens d) and to perform moderator analyses...
May 25, 2017: Journal of Abnormal Child Psychology
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