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https://www.readbyqxmd.com/read/28724153/actual-and-standardized-patient-evaluations-of-medical-students-skills
#1
Amelia L Sattler, Sylvia Bereknyei Merrell, Steven Y Lin, Erika Schillinger
BACKGROUND AND OBJECTIVES: Physicians must communicate effectively with patients. Actual patients (APs) rarely evaluate medical students' clinical skills; instead, standardized patients (SPs) provide proxy ratings. It is unclear how well SP ratings mirror AP experiences. The aim of this study was to compare AP and SP assessments of medical students' communication skills and professionalism. We hypothesized that their perspectives would be similar, but distinct, and offer insight about how to more reliably include the patient's voice in medical education...
July 2017: Family Medicine
https://www.readbyqxmd.com/read/28724074/high-resolution-genetic-and-physical-mapping-of-the-eastern-filbert-blight-resistance-region-in-jefferson-hazelnut-corylus-avellana-l
#2
Vidyasagar Sathuvalli, Shawn A Mehlenbacher, David C Smith
Eastern filbert blight (EFB), caused by the pyrenomycete (Peck) E. Müller, is a devastating disease of European hazelnut ( L) in the US Pacific Northwest. A dominant allele at a single locus from the obsolete pollenizer 'Gasaway' confers a high level of resistance to EFB. To identify the gene responsible for resistance, we initiated map-based cloning efforts in a population of 1488 seedlings that segregated for resistance. Chromosome walking was initiated using primers designed from eight previously identified random amplified polymorphic DNA markers linked to resistance...
July 2017: Plant Genome
https://www.readbyqxmd.com/read/28723698/application-technical-issues-and-interpretation-of-c1q-for-graft-outcome
#3
Dolly B Tyan
PURPOSE OF REVIEW: Significant interest and controversy surround the use of C1q for determining risk of antibody-mediated rejection (AMR) and graft loss. Alternate models for predicting outcomes have been proposed. This review focuses on the correlation of currently utilized assays for outcome, together with the technical and theoretical limitations, to distill current thinking. RECENT FINDINGS: Results demonstrate that C1q status is significantly correlated with AMR and graft loss...
July 18, 2017: Current Opinion in Organ Transplantation
https://www.readbyqxmd.com/read/28723521/bone-scan-index-and-progression-free-survival-data-for-progressive-metastatic-castration-resistant-prostate-cancer-patients-who-received-odm-201-in-the-arades-multicentre-study
#4
Mariana Reza, Robert Jones, John Aspegren, Christophe Massard, Leena Mattila, Mika Mustonen, Per Wollmer, Elin Trägårdh, Eva Bondesson, Lars Edenbrandt, Karim Fizazi, Anders Bjartell
BACKGROUND: ODM-201, a new-generation androgen receptor inhibitor, has shown clinical efficacy in prostate cancer (PCa). Quantitative methods are needed to accurately assess changes in bone as a measurement of treatment response. The Bone Scan Index (BSI) reflects the percentage of skeletal mass a given tumour affects. OBJECTIVE: To evaluate the predictive value of the BSI in metastatic castration-resistant PCa (mCRPC) patients undergoing treatment with ODM-201...
December 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723469/inflammation-microbiota-and-prostate-cancer
#5
REVIEW
Martin Puhr, Angelo De Marzo, William Isaacs, Marshall Scott Lucia, Karen Sfanos, Srinivasan Yegnasubramanian, Zoran Culig
CONTEXT: Chronic inflammation of the prostate has been associated with preneoplastic lesions and cancer development. Multiple causes have been considered for chronic inflammation of the prostate. Inflammatory cytokines such as interleukins are implicated in prostate carcinogenesis and development. OBJECTIVE: To evaluate literature published on etiological factors, urinary microbiota, morphological features of proliferative inflammatory atrophy and high-grade prostate intraepithelial neoplasia, genetic polymorphisms, inflammatory stress, and cytokine signaling...
October 2016: European Urology Focus
https://www.readbyqxmd.com/read/28723234/flexible-small-molecular-anti-estrogens-with-n-n-dialkylated-2-5-diethoxy-4-morpholinoaniline-scaffold-targets-multiple-estrogen-receptor-conformations
#6
Bethany K Asare, Emmanuel Yawson, Rajendram V Rajnarayanan
Estrogen mediates various cellular processes including cell proliferation, differentiation, growth and mammary gland function. Estrogen Receptors (ERs) are expressed in 70% of breast cancers. Consequently, estrogen mediated ER signaling plays a critical role in breast cancer diagnosis, prognosis, and treatment. Estrogen Receptors are ligand-triggered transcription factors. However, in the absence of a cognate estrogenic ligand, ERs can be activated by a variety of other extracellular signals. Tamoxifen, an anti-estrogen that selectively targets ER, induces substantial regression of breast tumors and an increase in disease-free survival...
July 19, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28723229/the-formation-of-nucleobases-from-the-ultraviolet-photoirradiation-of-purine-in-simple-astrophysical-ice-analogues
#7
Christopher K Materese, Michel Nuevo, Scott A Sandford
Nucleobases are the informational subunits of RNA and DNA and are essential to all known forms of life. The nucleobases can be divided into two groups of molecules: the pyrimidine-based compounds that include uracil, cytosine, and thymine, and the purine-based compounds that include adenine and guanine. Previous work in our laboratory has demonstrated that uracil, cytosine, thymine, and other nonbiological, less common nucleobases can form abiotically from the UV photoirradiation of pyrimidine in simple astrophysical ice analogues containing combinations of H2O, NH3, and CH4...
July 19, 2017: Astrobiology
https://www.readbyqxmd.com/read/28722725/the-monogenic-autoinflammatory-diseases-define-new-pathways-in-human-innate-immunity-and-inflammation
#8
REVIEW
Kalpana Manthiram, Qing Zhou, Ivona Aksentijevich, Daniel L Kastner
Autoinflammatory diseases were first recognized nearly 20 years ago as distinct clinical and immunological entities caused by dysregulation in the innate immune system. Since then, advances in genomic techniques have led to the identification of new monogenic disorders and their corresponding signaling pathways. Here we review these monogenic autoinflammatory diseases, ranging from periodic fever syndromes caused by dysregulated inflammasome-mediated production of the cytokine IL-1β to disorders arising from perturbations in signaling by the transcription factor NF-κB, ubiquitination, cytokine signaling, protein folding, type I interferon production and complement activation, and we further examine their molecular mechanisms...
July 19, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28722723/untangling-fc-and-complement-receptors-to-kill-tumors
#9
Cees E van der Poel, Michael C Carroll
No abstract text is available yet for this article.
July 19, 2017: Nature Immunology
https://www.readbyqxmd.com/read/28722658/the-golgi-localized-gamma-ear-containing-arf-binding-gga-protein-family-alters-alpha-synuclein-%C3%AE-syn-oligomerization-and-secretion
#10
Bjoern von Einem, Judith Eschbach, Martin Kiechle, Anke Wahler, Dietmar R Thal, Pamela J McLean, Jochen H Weishaupt, Albert C Ludolph, Christine A F von Arnim, Karin M Danzer
Several age-related neurodegenerative disorders are associated with protein misfolding and aggregation of toxic peptides. α-synuclein (α-syn) aggregation and the resulting cytotoxicity is a hallmark of Parkinson's disease (PD) as well as dementia with Lewy bodies. Rising evidence points to oligomeric and pre-fibrillar forms as the pathogenic species, and oligomer secretion seems to be crucial for the spreading and progression of PD pathology. Recent studies implicate that dysfunctions in endolysosomal/autophagosomal pathways increase α-syn secretion...
July 15, 2017: Aging
https://www.readbyqxmd.com/read/28722550/the-hub-and-spoke-organization-design-an-avenue-for-serving-patients-well
#11
James K Elrod, John L Fortenberry
BACKGROUND: The healthcare industry is characterized by intensive, never-ending change occurring on a multitude of fronts. Success in such tumultuous environments requires healthcare providers to be proficient in myriad areas, including the manner in which they organize and deliver services. Less efficient designs drain precious resources and hamper efforts to deliver the best care possible to patients, making it imperative that optimal pathways are identified and pursued. One particular avenue that offers great potential for serving patients efficiently and effectively is known as the hub-and-spoke organization design...
July 11, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28722450/two-new-sandwich-type-manganese-mn5-substituted-polyoxotungstates-syntheses-crystal-structures-electrochemistry-and-magnetic-properties
#12
Rakesh Gupta, Imran Khan, Firasat Hussain, A Martin Bossoh, Israël M Mbomekallé, Pedro de Oliveira, Masahiro Sadakane, Chisato Kato, Katsuya Ichihashi, Katsuya Inoue, Sadafumi Nishihara
Herein we report two pentanuclear Mn(II)-substituted sandwich-type polyoxotungstate complexes, [{Mn(bpy)}2Na(H2O)2(MnCl)2{Mn(H2O)}(AsW9O33)2](9-) and [{Mn(bpy)}2Na(H2O)2(MnCl){Mn(H2O)}2(SbW9O33)2](8-) (bpy = 2,2'-bipyridine), whose structures have been obtained by single-crystal X-ray diffraction (SCXRD), complemented by results obtained from elemental analysis, electrospray ionization mass spectrometry, Fourier transform infrared spectroscopy, and thermogravimetric analysis. They consist of two [B-α-XW9O33](9-) subunits sandwiching a cyclic assembly of the hexagonal [{Mn(bpy)}2Na(H2O)2(MnCl)2{Mn(H2O)}](9+) and [{Mn(bpy)}2Na(H2O)2(MnCl){Mn(H2O)}2](10+) moieties, respectively, and represent the first pentanuclear Mn(II)-substituted sandwich-type polyoxometalates (POMs)...
July 19, 2017: Inorganic Chemistry
https://www.readbyqxmd.com/read/28722422/first-time-view-on-human-metabolome-changes-after-a-single-intake-of-3-4-methylenedioxymethamphetamine-mdma-in-healthy-placebo-controlled-subjects
#13
Martina I Boxler, Matthias E Liechti, Yasmin Schmid, Thomas Kraemer, Andrea E Steuer
3,4-methylenedioxymethamphetamine (MDMA; 'ecstasy') is widely consumed recreationally. Currently little is known about its effects on the human metabolome. Mapping biochemical changes after drug exposure can complement traditional approaches by revealing potential biomarkers of organ toxicity or discovering new metabolomic features in a time- and dose-dependent manner. We aimed to analyze for the first time plasma samples from a randomized, double-blind, placebo-controlled crossover study in healthy adults to explore changes in endogenous plasma metabolites following a single intake of MDMA...
July 19, 2017: Journal of Proteome Research
https://www.readbyqxmd.com/read/28722283/comparative-analysis-of-storage-conditions-and-homogenization-methods-for-tick-and-flea-species-for-identification-by-maldi-tof-ms
#14
A Nebbak, B El Hamzaoui, J-M Berenger, I Bitam, D Raoult, L Almeras, P Parola
Ticks and fleas are vectors for numerous human and animal pathogens. Controlling them, which is important in combating such diseases, requires accurate identification, to distinguish between vector and non-vector species. Recently, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF-MS) was applied to the rapid identification of arthropods. The growth of this promising tool, however, requires guidelines to be established. To this end, standardization protocols were applied to species of Rhipicephalus sanguineus (Ixodida: Ixodidae) Latreille and Ctenocephalides felis felis (Siphonaptera: Pulicidae) Bouché, including the automation of sample homogenization using two homogenizer devices, and varied sample preservation modes for a period of 1-6 months...
July 19, 2017: Medical and Veterinary Entomology
https://www.readbyqxmd.com/read/28722263/ftsad2-and-ftjaz1-regulate-activity-of-the-ftmyb11-transcription-repressor-of-the-phenylpropanoid-pathway-in-fagopyrum-tataricum
#15
Meiliang Zhou, Zhanmin Sun, Mengqi Ding, Maria D Logacheva, Ivan Kreft, Dan Wang, Mingli Yan, Jirong Shao, Yixiong Tang, Yanmin Wu, Xuemei Zhu
Little is known about the molecular mechanism of the R2R3-MYB transcriptional repressors involved in plant phenylpropanoid metabolism. Here, we describe one R2R3-type MYB repressor, FtMYB11 from Fagopyrum tataricum. It contains the SID-like motif GGDFNFDL and it is regulated by both the importin protein 'Sensitive to ABA and Drought 2' (SAD2) and the jasmonates signalling cascade repressor JAZ protein. Yeast two hybrid and bimolecular fluorescence complementation assays demonstrated that FtMYB11 interacts with SAD2 and FtJAZ1...
July 19, 2017: New Phytologist
https://www.readbyqxmd.com/read/28722144/mechanisms-involved-in-hypersensitivity-reactions-to-polysulfone-hemodialysis-membranes
#16
Aranzazu Rodríguez-Sanz, Rafael Sánchez-Villanueva, Javier Domínguez-Ortega, Ana-María Fiandor, María-Paz Ruiz, Filomena Trocoli, Rafael Díaz-Tejeiro, Carlos Cadenillas, Elena González, Virginia Martínez, Margarita López-Trascasa, Santiago Quirce, Rafael Selgas, Teresa Bellón
Several cases of patients with anaphylactic or systemic hypersensitivity reactions to polysulfone (PS) hemodialysis (HD) membranes and tolerance to cellulose triacetate (CTA) membranes have recently been reported. To investigate the mechanisms involved in PS hypersensitivity, basophil, T cell, and complement activation were analyzed in acute-phase samples from two patients with systemic reactions to PS-based membranes. Basophil and T cell activation, as well as higher serum tryptase levels were detected in acute-phase samples compared with basal levels...
July 19, 2017: Artificial Organs
https://www.readbyqxmd.com/read/28722120/tax-exempt-hospitals-investments-in-community-health-and-local-public-health-spending-patterns-and-relationships
#17
Simone R Singh, Gary J Young
OBJECTIVES: To investigate whether tax-exempt hospitals' investments in community health are associated with patterns of governmental public health spending focusing specifically on the relationship between hospitals' community benefit expenditures and the spending patterns of local health departments (LHDs). STUDY DESIGN: We combined data on tax-exempt hospitals' community benefit spending with data on spending by the corresponding LHD that served the county in which a hospital was located...
July 18, 2017: Health Services Research
https://www.readbyqxmd.com/read/28722064/effect-of-alkyl-branches-on-the-thermal-stability-of-quaternary-ammonium-cations-in-organic-electrolytes-for-electrochemical-double-layer-capacitors
#18
Yong Nam Ahn, Sung Hoon Lee, Goo Soo Lee, Hyunbin Kim
Quaternary ammoniums are cations having widespread use in organic electrolytes for high performance electrochemical double layer capacitors (EDLCs) due to their various advantages such as high electrochemical stability and inexpensive production cost. However, the decomposition of quaternary ammoniums via Hofmann elimination hinders their applications for EDLCs operating at elevated temperatures. This study systematically investigates the reactivity of four different quaternary ammoniums (tetraethyl-, triethylmethyl-, diethyldimethyl-, and trimethylethyl-ammonium) in EDLC by utilizing density functional theory calculations and Brownian dynamics simulations complemented with molecular dynamics simulations...
July 19, 2017: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/28721671/front-end-electron-transfer-dissociation-coupled-to-a-21-tesla-ft-icr-mass-spectrometer-for-intact-protein-sequence-analysis
#19
Chad R Weisbrod, Nathan K Kaiser, John E P Syka, Lee Early, Christopher Mullen, Jean-Jacques Dunyach, A Michelle English, Lissa C Anderson, Greg T Blakney, Jeffrey Shabanowitz, Christopher L Hendrickson, Alan G Marshall, Donald F Hunt
High resolution mass spectrometry is a key technology for in-depth protein characterization. High-field Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS) enables high-level interrogation of intact proteins in the most detail to date. However, an appropriate complement of fragmentation technologies must be paired with FTMS to provide comprehensive sequence coverage, as well as characterization of sequence variants, and post-translational modifications. Here we describe the integration of front-end electron transfer dissociation (FETD) with a custom-built 21 tesla FT-ICR mass spectrometer, which yields unprecedented sequence coverage for proteins ranging from 2...
July 18, 2017: Journal of the American Society for Mass Spectrometry
https://www.readbyqxmd.com/read/28721593/public-policies-and-interventions-for-diabetes-in-latin-america-a-scoping-review
#20
REVIEW
Elizabeth Kaselitz, Gurpreet K Rana, Michele Heisler
PURPOSE OF REVIEW: Successful interventions are needed to diagnose and manage type 2 diabetes (T2DM) in Latin America, a region that is experiencing a significant rise in rates of T2DM. Complementing an earlier review exploring diabetes prevention efforts in Latin America, this scoping review examines the literature on (1) policies and governmental programs intended to improve diabetes diagnosis and treatment in Latin America and (2) interventions to improve diabetes management in Latin America...
August 2017: Current Diabetes Reports
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