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https://www.readbyqxmd.com/read/28821205/cerebrospinal-fluid-circulating-tumor-cells-a-novel-tool-to-diagnose-leptomeningeal-metastases-from-epithelial-tumors
#1
Xuling Lin, Martin Fleisher, Marc Rosenblum, Oscar Lin, Adrienne Boire, Samuel Briggs, Yevgeniya Bensman, Brenda Hurtado, Larisa Shagabayeva, Lisa M DeAngelis, Katherine S Panageas, Antonio Omuro, Elena I Pentsova
Background: Diagnosis of leptomeningeal metastasis (LM) remains challenging due to low sensitivity of CSF cytology and infrequent unequivocal MRI findings. In a previous pilot study, we showed that rare cell capture technology (RCCT) could be used to detect circulating tumor cells (CTC) in the CSF of patients with LM from epithelial tumors. To establish the diagnostic accuracy of CSF-CTC in the diagnosis of LM, we applied this technique in a distinct, larger cohort of patients. Methods: In this institutional review board-approved prospective study, patients with epithelial tumors and clinical suspicion of LM underwent CSF-CTC evaluation and standard MRI and CSF cytology examination...
September 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28821195/atypical-igg4-plasmacytic-proliferations-and-lymphomas-characterization-of-11-cases
#2
Jacob R Bledsoe, Zachary S Wallace, Vikram Deshpande, Joshua R Richter, Jason Klapman, Andrew Cowan, John H Stone, Judith A Ferry
Objectives: To report the clinicopathologic features of monotypic immunoglobulin G4+ (IgG4+) lymphoid and plasmacytic proliferations. Methods: Cases were identified from the pathology files. Pathology and clinical materials were reviewed. Results: Eleven cases of monotypic IgG4+ proliferations were identified at nodal, orbital, or salivary sites. Six cases (three men, three women; age, 57-94 years) met criteria for lymphoma or plasma cell neoplasia...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28821193/therapeutic-plasma-exchange-and-its-impact-on-drug-levels-an-aclps-critical-review
#3
Caleb W Cheng, Jeanne E Hendrickson, Christopher A Tormey, Davinder Sidhu
Objectives: To examine and summarize the current literature on the effects of therapeutic plasma exchange on medication levels. Methods: Literature review was performed via searches of the Cochrane Database and PubMed-MEDLINE (1996 to August 2016) looking for all case reports, case series, and human randomized controlled trials involving therapeutic plasma exchange (TPE)-associated drug removal. Results: Approximately 60 peer-reviewed articles were identified with the majority being case reports; no randomized controlled trials were identified...
September 1, 2017: American Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28821172/clinical-trials-rules
#4
A Tofield
No abstract text is available yet for this article.
August 14, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28821162/oral-administration-of-thymoquinone-mitigates-the-effect-of-cisplatin-on-brush-border-membrane-enzymes-energy-metabolism-and-antioxidant-system-in-rat-intestine
#5
Faaiza Shahid, Zeba Farooqui, Subuhi Abidi, Iqbal Parwez, Farah Khan
Cisplatin (CP) is a widely used chemotherapeutic agent that elicits severe gastrointestinal toxicity. Nigella sativa, a member of family Ranunculaceae, is one of the most revered medicinal plant known for its numerous health benefits. Thymoquinone (TQ), a major bioactive component derived from the volatile oil of Nigella sativa seeds, has been shown to improve gastrointestinal functions in animal models of acute gastric/intestinal injury. In view of this, the aim of the present study was to investigate the protective effect of TQ on CP induced toxicity in rat intestine and to elucidate the mechanism underlying these effects...
August 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28821159/inhibition-of-dna-pk-enhances-chemosensitivity-of-b-cell-precursor-acute-lymphoblastic-leukemia-cells-to-doxorubicin
#6
Fatemeh Alikarami, Majid Safa, Mohammad Faranoush, Parisa Hayat, Ahmad Kazemi
DNA damage repair pathways greatly affect the response to genotoxic drugs in cancer cells, so inhibition of such pathways could be a potentially useful strategy to enhance chemosensitivity. DNA-dependent protein kinase (DNA-PK) plays a crucial role in the repair of DNA double-strand breaks (DSBs) that are probably one of the most detrimental types of DNA damage. It has been shown that DNA-PK is highly expressed in B-cell precursor acute lymphoblastic leukemia (BCP-ALL) cells. Less well appreciated was the effect of DNA-PK inhibition on sensitivity of BCP-ALL cells to DNA-damaging agents...
August 14, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28821109/pectinate-nanofiber-mat-with-high-absorbency-and-antibacterial-activity-a-potential-superior-wound-dressing-to-alginate-and-chitosan-nanofiber-mats
#7
Sainan Chen, Sisi Cui, Junli Hu, Yifa Zhou, Yichun Liu
Polysaccharides including pectin, alginate and chitosan are fabricated into dressings of micrometer-scaled architecture (micro- fiber or particle) and widely applied in wound treatments clinically. This work characterized and compared the properties of electrospun nanofibrous dressings of these polysaccharides. We found that although the three polysaccharide nanofiber mats had comparable mechanical strength and vapour permeability, the pectinate nanofiber mat could absorb 1.2 times and 3.6 times more exudates than the alginate and chitosan nanofiber mats, respectively, within less time...
October 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28821019/stimulus-characteristics-of-single-word-tests-of-children-s-speech-sound-production
#8
Toby Macrae
Purpose: This clinical focus article provides readers with a description of the stimulus characteristics of 12 popular tests of speech sound production. Method: Using significance testing and descriptive analyses, stimulus items were compared in terms of the number of opportunities for production of all consonant singletons, clusters, and rhotic and nonrhotic vowels of Standard American English; phonetic/phonological and structural complexity; and the presence of bound morphemes...
August 18, 2017: Language, Speech, and Hearing Services in Schools
https://www.readbyqxmd.com/read/28821017/the-location-of-australian-buruli-ulcer-lesions-implications-for-unravelling-disease-transmission
#9
Arvind Yerramilli, Ee Laine Tay, Andrew J Stewardson, Peter G Kelley, Emma Bishop, Grant A Jenkin, Mike Starr, Janine Trevillyan, Andrew Hughes, N Deborah Friedman, Daniel P O'Brien, Paul D R Johnson
BACKGROUND: Buruli ulcer (BU), caused by Mycobacterium ulcerans, is increasing in incidence in Victoria, Australia. To improve understanding of disease transmission, we aimed to map the location of BU lesions on the human body. METHODS: Using notification data and clinical records review, we conducted a retrospective observational study of patients diagnosed with BU in Victoria from 1998-2015. We created electronic density maps of lesion locations using spatial analysis software and compared lesion distribution by age, gender, presence of multiple lesions and month of infection...
August 18, 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28821012/multidomain-analyses-of-a-longitudinal-human-microbiome-intestinal-cleanout-perturbation-experiment
#10
Julia Fukuyama, Laurie Rumker, Kris Sankaran, Pratheepa Jeganathan, Les Dethlefsen, David A Relman, Susan P Holmes
Our work focuses on the stability, resilience, and response to perturbation of the bacterial communities in the human gut. Informative flash flood-like disturbances that eliminate most gastrointestinal biomass can be induced using a clinically-relevant iso-osmotic agent. We designed and executed such a disturbance in human volunteers using a dense longitudinal sampling scheme extending before and after induced diarrhea. This experiment has enabled a careful multidomain analysis of a controlled perturbation of the human gut microbiota with a new level of resolution...
August 18, 2017: PLoS Computational Biology
https://www.readbyqxmd.com/read/28821011/the-photodynamic-action-of-pheophorbide-a-induces-cell-death-through-oxidative-stress-in-leishmania-amazonensis
#11
Nathielle Miranda, Hélito Volpato, Jean Henrique da Silva Rodrigues, Wilker Caetano, Tânia Ueda-Nakamura, Sueli de Oliveira Silva, Celso Vataru Nakamura
Leishmaniasis is a disease caused by hemoflagellate protozoa, affecting millions of people worldwide. The difficulties of treating patients with this parasitosis include the limited efficacy and many side effects of the currently available drugs. Therefore, the search for new compounds with leishmanicidal action is necessary. Photodynamic therapy has been studied in the medical field because of its selectivity, utilizing a combination of visible light, a photosensitizer compound, and singlet oxygen to reach the area of treatment...
August 11, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28820987/a-new-label-free-electrochemical-immunosensor-based-on-dendritic-core-shell-aupd-au-nanocrystals-for-highly-sensitive-detection-of-prostate-specific-antigen
#12
Rui Wang, Wei-Dong Liu, Ai-Jun Wang, Yadong Xue, Liang Wu, Jiu-Ju Feng
Herein, bimetallic dendritic core-shell AuPd@Au nanocrystals (AuPd@Au NCs) were prepared by a simple one-pot aqueous method using xanthine as a green growth-directing agent. By virtue of the enhanced peak currents in the H2O2 reduction catalyzed by AuPd@Au NCs, a label-free immunosensor was constructed for the detection of prostate specific antigen (PSA). The immunosensor exhibited significantly improved analytical performance for the assay of PSA with wide linear range of 0.1-50ngmL(-1) and low detection limit of 0...
August 10, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/28820984/identification-of-m-tuberculosis-antigens-in-the-sera-of-tuberculosis-patients-using-biomimetic-affinity-chromatography-in-conjunction-with-esi-cid-ms-ms
#13
Guorong Ma, Jinting Pan, Jincheng Han, Lina Gao, Shulin Zhang, Rongxiu Li
The profiling of abnormally-expressed proteins in host cells using mass spectrometry (MS) analysis is a classical approach for screening disease-associated biomarkers in clinical diagnosis. However, few pathogen-specific antigens can currently be detected in serum using this proteomic approach, since these are very low-abundant proteins that are easily masked by host high-abundant proteins. Identification of pathogen-specific antigens in the sera of tuberculosis patients is crucial for the clinical diagnosis of this infectious disease, especially in immune-compromised patients...
July 31, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28820982/direct-analysis-no-sample-preparation-of-bioavailable-cortisol-in-human-plasma-by-weak-affinity-chromatography-wac
#14
Sten Ohlson, Jagjit Kaur, Manfred Raida, Ulf Niss, Tim Bengala, Chester Lee Drum, Bernhard Boehm, Anthony R Torres
Pre-analytical treatment of blood plasma is a time consuming and often rate limiting step in the workflow of LC/MS analysis. We present in this pilot study a new approach for quantitative LC/MS based on weak affinity chromatography (WAC) of crude plasma. The steroid hormone cortisol was selected as a clinically relevant biomarker, as it currently requires extensive pre-analytical preparation. A WAC unit with saturating, immobilized albumin as a prototypic weak binder was used in combination with an ion-funnel MS/MS detector to perform zonal affinity chromatography of cortisol directly from a plasma sample, followed by quantitative multiple reaction monitoring (MRM)...
July 21, 2017: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
https://www.readbyqxmd.com/read/28820970/utility-of-the-comprehensive-marijuana-motives-questionnaire-among-medical-cannabis-patients
#15
Kipling M Bohnert, Erin E Bonar, J Todd Arnedt, Deirdre A Conroy, Maureen A Walton, Mark A Ilgen
BACKGROUND: Little is known about motives for cannabis use among the population of adults using cannabis medically. Therefore, we evaluated the performance of the 12 factor, 36-item Comprehensive Marijuana Motives Questionnaire (CMMQ) among a sample of medical cannabis patients. METHODS: Study participants were adults ages 21years or older with scheduled appointments to obtain new or renewed medical cannabis certification from clinics in one Midwestern state (n=1116)...
August 3, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28820967/identifying-predictors-for-bleeding-in-hospitalized-cancer-patients-a-cohort-study
#16
Rushad Patell, Alejandra Gutierrez, Lisa Rybicki, Alok A Khorana
BACKGROUND: Bleeding and thrombosis are both major complications of hospitalization in cancer patients. Concern regarding bleeding risk may reduce compliance with thromboprophylaxis. We assessed incidence of major and clinically relevant non-major bleeding (MCRNMB) and identified risk factors associated with in-hospital bleeding risk in hospitalized cancer patients. METHODS: We conducted a retrospective cohort study of consecutive adults admitted to general oncology floor at Cleveland Clinic from 11/2012-12/2014 (n=3525)...
August 12, 2017: Thrombosis Research
https://www.readbyqxmd.com/read/28820965/systematic-identification-of-mcu-modulators-by-orthogonal-interspecies-chemical-screening
#17
Daniela M Arduino, Jennifer Wettmarshausen, Horia Vais, Paloma Navas-Navarro, Yiming Cheng, Anja Leimpek, Zhongming Ma, Alba Delrio-Lorenzo, Andrea Giordano, Cecilia Garcia-Perez, Guillaume Médard, Bernhard Kuster, Javier García-Sancho, Dejana Mokranjac, J Kevin Foskett, M Teresa Alonso, Fabiana Perocchi
The mitochondrial calcium uniporter complex is essential for calcium (Ca(2+)) uptake into mitochondria of all mammalian tissues, where it regulates bioenergetics, cell death, and Ca(2+) signal transduction. Despite its involvement in several human diseases, we currently lack pharmacological agents for targeting uniporter activity. Here we introduce a high-throughput assay that selects for human MCU-specific small-molecule modulators in primary drug screens. Using isolated yeast mitochondria, reconstituted with human MCU, its essential regulator EMRE, and aequorin, and exploiting a D-lactate- and mannitol/sucrose-based bioenergetic shunt that greatly minimizes false-positive hits, we identify mitoxantrone out of more than 600 clinically approved drugs as a direct selective inhibitor of human MCU...
August 17, 2017: Molecular Cell
https://www.readbyqxmd.com/read/28820952/adult-intelligence-the-construct-and-the-criterion-problem
#18
Phillip L Ackerman
Over 100 years have passed since Binet and Simon proposed scales for assessment of intelligence of children to predict academic success and failure. The extension of these assessments to adults largely resulted from efforts of psychologists to provide insights for military selection in World War I. At the time, relatively little thought was given to how adult intelligence might differ from child and adolescent intelligence. Traditional approaches for assessing adult intelligence have largely survived. However, there is little reference to adult intellectual functioning outside of laboratory-based tasks and clinical assessments of pathology...
August 1, 2017: Perspectives on Psychological Science: a Journal of the Association for Psychological Science
https://www.readbyqxmd.com/read/28820951/lactation-consultants-perceived-barriers-to-providing-professional-breastfeeding-support
#19
Erica H Anstey, Martha Coulter, Cecilia M Jevitt, Kay M Perrin, Sharon Dabrow, Lynne B Klasko-Foster, Ellen M Daley
BACKGROUND: Addressing suboptimal breastfeeding initiation and duration rates is a priority in the United States. To address challenges to improving these rates, the voices of the providers who work with breastfeeding mothers should be heard. Research aim: The purpose of this study was to explore lactation consultants' perceived barriers to managing early breastfeeding problems. METHODS: This qualitative study was conducted with a grounded theory methodological approach...
August 1, 2017: Journal of Human Lactation: Official Journal of International Lactation Consultant Association
https://www.readbyqxmd.com/read/28820949/association-between-patient-factors-and-outcome-of-synthetic-cartilage-implant-hemiarthroplasty-vs-first-metatarsophalangeal-joint-arthrodesis-in-advanced-hallux-rigidus
#20
Andy Goldberg, Dishan Singh, Mark Glazebrook, Chris M Blundell, Gwyneth De Vries, Ian L D Le, Dominic Nielsen, M Elizabeth Pedersen, Anthony Sakellariou, Matthew Solan, Alastair S E Younger, Timothy R Daniels, Judith F Baumhauer
BACKGROUND: We evaluated data from a clinical trial of first metatarsophalangeal joint (MTPJ1) implant hemiarthroplasty and arthrodesis to determine the association between patient factors and clinical outcomes. METHODS: Patients ≥18 years with hallux rigidus grade 2, 3, or 4 were treated with synthetic cartilage implant MTPJ1 hemiarthroplasty or arthrodesis. Pain visual analog scale (VAS), Foot and Ankle Ability Measure (FAAM) sports and activities of daily living (ADL) scores, and Short Form-36 Physical Function (SF-36 PF) subscore were obtained preoperatively, and at 2, 6, 12, 24, 52, and 104 weeks postoperatively...
August 1, 2017: Foot & Ankle International
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