keyword
MENU ▼
Read by QxMD icon Read
search

A.R.T.

keyword
https://www.readbyqxmd.com/read/28215026/separation-of-peptides-on-superficially-porous-particle-based-macrocyclic-glycopeptide-liquid-chromatography-stationary-phases-consideration-of-fast-separations
#1
Rasangi M Wimalasinghe, Zachary S Breitbach, Jauh T Lee, Daniel W Armstrong
Macrocyclic glycopeptide based liquid chromatography stationary phases are known for their highly selective peptide separations. Fast and ultrafast (t R < 1 min) high-efficiency separations were achieved with superficially porous particle (SPP)-based stationary phases. Separations of pharmaceutically important classes of peptides such as enkephalins and bradykinins have been achieved in less than 5 min in isocratic elution modes. Selectivity for peptides structurally similar to one another was increased with use of teicoplanin-based stationary phases compared with commercial C18 stationary phases...
February 18, 2017: Analytical and Bioanalytical Chemistry
https://www.readbyqxmd.com/read/28214960/axonal-disruption-in-white-matter-underlying-cortical-sulcus-tau-pathology-in-chronic-traumatic-encephalopathy
#2
Laurena Holleran, Joong Hee Kim, Mihika Gangolli, Thor Stein, Victor Alvarez, Ann McKee, David L Brody
Chronic traumatic encephalopathy (CTE) is a progressive degenerative disorder associated with repetitive traumatic brain injury. One of the primary defining neuropathological lesions in CTE, based on the first consensus conference, is the accumulation of hyperphosphorylated tau in gray matter sulcal depths. Post-mortem CTE studies have also reported myelin loss, axonal injury and white matter degeneration. Currently, the diagnosis of CTE is restricted to post-mortem neuropathological analysis. We hypothesized that high spatial resolution advanced diffusion MRI might be useful for detecting white matter microstructural changes directly adjacent to gray matter tau pathology...
February 18, 2017: Acta Neuropathologica
https://www.readbyqxmd.com/read/28214953/amplification-of-blood-smear-dna-to-confirm-disseminated-histoplasmosis
#3
T Dieng, A Massaly, D Sow, S Vellaissamy, K Sylla, R C Tine, Y Dieng, C Hennequin
BACKGROUND: The prevalence of the Histoplasma capsulatum var. capsulatum (Hcc) histoplasmosis may be underestimated West Africa, both because the diagnosis is not mentioned in the early stages of the disease and due to limited biological resources available. CASE REPORT: We report a case of disseminated histoplasmosis due to Hcc in a Senegalese HIV patient. The diagnosis was suspected following the demonstration of small encapsulated yeasts within neutrophils on a thin blood smear...
February 18, 2017: Infection
https://www.readbyqxmd.com/read/28214928/dendritic-cell-rehab-new-strategies-to-unleash-therapeutic-immunity-in-ovarian-cancer
#4
REVIEW
Chang-Suk Chae, Eli Teran-Cabanillas, Juan R Cubillos-Ruiz
Immune-based therapies that induce remarkable and durable responses against melanoma and lung cancer have unfortunately demonstrated limited success in ovarian cancer patients. This is likely due to the exceptional immunoregulatory nature of ovarian tumors, which employ numerous strategies to effectively suppress anti-tumor immunity. Here, we summarize a decade of research indicating that ovarian cancers possess an exquisite capacity to subvert the activity of host dendritic cells (DCs) as a key mechanism to impede the development and maintenance of protective T cell-based immune responses...
February 18, 2017: Cancer Immunology, Immunotherapy: CII
https://www.readbyqxmd.com/read/28214776/the-metabolic-impact-of-extracellular-nitrite-on-aerobic-metabolism-of-paracoccus-denitrificans
#5
K R Hartop, M J Sullivan, G Giannopoulos, A J Gates, P L Bond, Z Yuan, T A Clarke, G Rowley, D J Richardson
Nitrite, in equilibrium with free nitrous acid (FNA), can inhibit both aerobic and anaerobic growth of microbial communities through bactericidal activities that have considerable potential for control of microbial growth in a range of water systems. There has been much focus on the effect of nitrite/FNA on anaerobic metabolism and so, to enhance understanding of the metabolic impact of nitrite/FNA on aerobic metabolism, a study was undertaken with a model denitrifying bacterium Paracoccus denitrificans PD1222...
February 7, 2017: Water Research
https://www.readbyqxmd.com/read/28214628/differences-in-biological-traits-composition-of-benthic-assemblages-between-unimpacted-habitats
#6
S G Bolam, C Garcia, J Eggleton, A J Kenny, L Buhl-Mortensen, G Gonzalez-Mirelis, T van Kooten, G Dinesen, J Hansen, J G Hiddink, M Sciberras, C Smith, N Papadopoulou, A Gumus, G Van Hoey, O R Eigaard, F Bastardie, A D Rijnsdorp
There is an implicit requirement under contemporary policy drivers to understand the characteristics of benthic communities under anthropogenically-unimpacted scenarios. We used a trait-based approach on a large dataset from across the European shelf to determine how functional characteristics of unimpacted benthic assemblages vary between different sedimentary habitats. Assemblages in deep, muddy environments unaffected by anthropogenic disturbance show increased proportions of downward conveyors and surface deposit-feeders, while burrowing, diffusive mixing, scavenging and predation traits assume greater numerical proportions in shallower habitats...
January 23, 2017: Marine Environmental Research
https://www.readbyqxmd.com/read/28214610/virosome-bound-antigen-enhances-dc-dependent-specific-cd4-t-cell-stimulation-inducing-a-th1-and-treg-profile-in-vitro
#7
Rebecca A M Blom, Mario Amacker, Christian Moser, R Maarten van Dijk, Raffaela Bonetti, Emilie Seydoux, Sean R R Hall, Christophe von Garnier, Fabian Blank
There is considerable interest to develop antigen-carriers for immune-modulatory clinical applications, but insufficient information is available on their effects on antigen-presenting cells. We employed virosomes coupled to ovalbumin (OVA) to study their interaction with murine bone marrow-derived dendritic cells (BMDCs) and modulation of downstream T cell responses. BMDCs were treated in vitro with virosomes or liposomes prior to determining BMDC phenotype, viability, and intra-cellular trafficking. Antigen-specific CD4(+) T cell activation was measured by co-culture of BMDCs with DO11...
February 15, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28214570/routine-urethrograpy-after-buccal-graft-bulbar-urethroplasty-the-impact-of-initial-urethral-leak-on-surgical-success
#8
Erik T Grossgold, Jairam R Eswara, Cary L Siegel, Joel Vetter, Steven B Brandes
OBJECTIVE: To determine the long-term impact of extravasation at initial post-urethroplasty urethrogram, we present a novel classification system and report the association of leak severity with outcome. MATERIALS AND METHODS: 91 patients underwent buccal graft urethroplasties of the bulbar urethra from 2007-2015. Median time to urethrogram was 23d. All leaks were characterized by length and width. Cutoffs for length and width were calculated using ROC curves. Each urethrogram was graded 0-3 (0=no leak) with one point given for any leak, length ≥1...
February 15, 2017: Urology
https://www.readbyqxmd.com/read/28214536/t-cell-immunoregulation-in-active-ocular-toxoplasmosis
#9
Cynthia A Cordeiro, Erica L M Vieira, Vinicius M Castro, Walderez O Dutra, Rogerio A Costa, Juliana L Orefice, Wesley R Campos, Fernando Orefice, Lucy H Young, Antonio Lucio Teixeira
Toxoplasma gondii infection is an important cause of infectious ocular disease. The physiopathology of retinochoroidal lesions associated with this infection is not completely understood. The present study was undertaken to investigate cytokine production by T cells from individuals with active toxoplasmic retinochoroiditis (TR) comparing with controls. Eighteen patients with active TR and 15 healthy controls (6 controls IgG(+) to Toxoplasma and 9 negative controls) were included in the study. Peripheral blood mononuclear cells were incubated in the presence or absence of T...
February 15, 2017: Immunology Letters
https://www.readbyqxmd.com/read/28214371/the-risk-of-depression-suicidal-ideation-and-suicide-attempt-in-patients-with-psoriasis-psoriatic-arthritis-or-ankylosing-spondylitis
#10
J J Wu, R B Penfold, P Primatesta, T K Fox, C Stewart, S P Reddy, A Egeberg, J Liu, G Simon
BACKGROUND: Sparse information is available concerning mental health issues in psoriasis, psoriatic arthritis (PsA), and ankylosing spondylitis (AS) patients. OBJECTIVE: To estimate risk of depression, suicidal ideation, and suicide attempt in patients with psoriasis, PsA, and AS, respectively, compared with the general population. METHODS: This population-based cohort study analyzed 36,214 psoriasis patients, 5,138 PsA patients, and 1,878 AS patients who were frequency-matched with a general population cohort...
February 18, 2017: Journal of the European Academy of Dermatology and Venereology: JEADV
https://www.readbyqxmd.com/read/28214281/patient-characterization-and-usage-trends-of-proton-beam-therapy-for-localized-prostate-cancer-in-the-united-states-a-study-of-the-national-cancer-database
#11
Arya Amini, David Raben, E David Crawford, Thomas W Flaig, Elizabeth R Kessler, Elaine T Lam, Paul Maroni, Thomas J Pugh
PURPOSE: To evaluate usage trends and identify factors associated with proton beam therapy (PBT) compared to alternative forms of external beam radiation therapy (RT) (EBRT) for localized prostate cancer. PATIENTS AND METHODS: The National Cancer Database was queried for men with localized (N0, M0) prostate cancer diagnosed between 2004 and 2013, treated with EBRT, with available data on EBRT modality (photon vs. PBT). Binary multiple logistic regression identified variables associated with EBRT modality...
February 14, 2017: Urologic Oncology
https://www.readbyqxmd.com/read/28214264/identification-of-candidate-cerebrospinal-fluid-biomarkers-in-parkinsonism-using-quantitative-proteomics
#12
N K Magdalinou, A J Noyce, R Pinto, E Lindstrom, J Holmén-Larsson, M Holtta, K Blennow, H R Morris, T Skillbäck, T T Warner, A J Lees, I Pike, M Ward, H Zetterberg, J Gobom
INTRODUCTION: Neurodegenerative parkinsonian syndromes have significant clinical and pathological overlap, making early diagnosis difficult. Cerebrospinal fluid (CSF) biomarkers may aid the differentiation of these disorders, but other than α-synuclein and neurofilament light chain protein, which have limited diagnostic power, specific protein biomarkers remain elusive. OBJECTIVES: To study disease mechanisms and identify possible CSF diagnostic biomarkers through discovery proteomics, which discriminate parkinsonian syndromes from healthy controls...
January 31, 2017: Parkinsonism & related Disorders
https://www.readbyqxmd.com/read/28214248/fruit-promoting-smarter-lunchrooms-interventions-results-from-a-cluster-rct
#13
Katherine N Greene, Gnel Gabrielyan, David R Just, Brian Wansink
INTRODUCTION: The Smarter Lunchrooms Movement was developed to provide schools with simple, low-cost solutions to encourage students to make healthier food choices at school. The objective of this study was to evaluate the impact of fruit-promoting Smarter Lunchroom interventions on middle school students' selection and consumption of fruits. DESIGN: A 9-week cluster RCT was conducted using a pre-test/post-test control group design in upstate New York in February-April 2014...
February 13, 2017: American Journal of Preventive Medicine
https://www.readbyqxmd.com/read/28214238/high-prevalence-of-low-serum-biologically-active-testosterone-in%C3%A2-older-male-veterans
#14
Christine F Conover, Joshua F Yarrow, Timothy J Garrett, Fan Ye, Eoin P Quinlivan, Darryl F Cannady, Mark D Peterson, Stephen E Borst
OBJECTIVES: Assess the prevalence of hypogonadism in older male Veterans by comparing direct measurements of total testosterone (T) and bioavailable testosterone (BioT) versus indirect BioT values derived from existing and newly developed regression analyses. DESIGN: Cohort study. SETTING: Malcom Randall VA Medical Center, Gainesville, FL. PARTICIPANTS: Community-dwelling male Veterans aged 60 and older (n = 203). MEASUREMENTS: Total T, BioT, albumin, sex hormone-binding globulin (SHBG), and body mass index were evaluated...
February 14, 2017: Journal of the American Medical Directors Association
https://www.readbyqxmd.com/read/28214193/quantification-of-the-overall-measurement-uncertainty-associated-with-the-passive-moss-biomonitoring-technique-sample-collection-and-processing
#15
J R Aboal, M T Boquete, A Carballeira, A Casanova, S Debén, J A Fernández
In this study we examined 6080 data gathered by our research group during more than 20 years of research on the moss biomonitoring technique, in order to quantify the variability generated by different aspects of the protocol and to calculate the overall measurement uncertainty associated with the technique. The median variance of the concentrations of different pollutants measured in moss tissues attributed to the different methodological aspects was high, reaching values of 2851 (ng·g(-1))(2) for Cd (sample treatment), 35...
February 14, 2017: Environmental Pollution
https://www.readbyqxmd.com/read/28214165/agenesis-of-the-corpus-callosum-and-aicardi-syndrome-a%C3%A2-neuroimaging-and-clinical-comparison
#16
T Govil-Dalela, A Kumar, R Agarwal, H T Chugani
BACKGROUND: Agenesis of the corpus callosum can occur in individuals with epilepsy, either in isolation or as part of various neurological conditions, such as Aicardi syndrome. In this study, we evaluated the clinical and neuroradiological differences between children with nonsyndromic agenesis of the corpus callosum and those with Aicardi syndrome. METHODS: We evaluated 31 children with epilepsy and agenesis of the corpus callosum (11 males, 20 females), 14 of whom had Aicardi syndrome (all females)...
January 4, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/28214148/muscle-characteristics-only-partially-explain-color-variations-in-fresh-hams
#17
K Stufft, J Elgin, B Patterson, S K Matarneh, R Preisser, H Shi, E M England, T L Scheffler, E W Mills, D E Gerrard
Fresh hams display significant lean color variation that persists through further processing and contributes to a less desirable cured product. In an attempt to understand the underlying cause of this color disparity, we evaluated the differences in muscle characteristics and energy metabolites across semimembranosus (SM) muscles differing in color variation. The L* (lightness) and a* (redness) values were highest and lowest (P<0.001), respectfully in the most caudal aspects of the muscle while the ultimate pH was the lowest (P<0...
December 24, 2016: Meat Science
https://www.readbyqxmd.com/read/28214142/-a-case-of-rhinofacial-entomophthoromycosis-in-soudano-sahelian-tropical-climate-in-burkina-faso
#18
S Bamba, V Konsegré, A Zida, I Sangaré, M Cissé, R Beogo, B Diallo, J B Andonaba, R T Guiguemdé
We describe a rhinofacial entomophthoramycosis case in a sexagenarian (65 years old) housewife. She was immunocompetent and resident of Burkina Faso. She consulted both the service of dermatology and the service of stomatology of the Teaching Hospital of Bobo-Dioulasso in February 2016 for a diffuse facial tumefaction evolving over six months. This tumefaction was associated with headaches and a left nasal obstruction. Histological examination of the lesion showed an important and polymorphic inflammatory reaction...
February 14, 2017: Journal de Mycologie Médicale
https://www.readbyqxmd.com/read/28214097/impact-of-an-enhanced-recovery-after-surgery-programme-in-radical-cystectomy-a-cohort-comparative-study
#19
R Casans-Francés, A T Roberto-Alcácer, A C García-Lecina, M L Ferrer-Ferrer, J Subirá-Ríos, J Guillén-Antón
OBJECTIVE: To evaluate the results of the implementation of an enhanced recovery program (ERAS) for open approach radical cystectomy compared to the historical cohort of the same hospital. MATERIAL AND METHODS: A retrospective analysis of 138 consecutive patients who underwent radical cystectomy with Bricker or Studer ileal derivation (97 historical vs. 41 ERAS). Overall complication rate, Clavien-Dindo stage>2 complications, mortality, hospital and critical care length of stay and readmission rates, as well as need for reoperation, nasogastric intubation, transfusion or parenteral nutrition were compared...
February 14, 2017: Revista Española de Anestesiología y Reanimación
https://www.readbyqxmd.com/read/28214087/targeting-the-pd-1-pd-l1-axis-in-non-small-cell-lung-cancer
#20
REVIEW
Rajiv Kumar, Dearbhaile Collins, Saoirse Dolly, Fiona McDonald, Mary E R O'Brien, Timothy A Yap
The last decade has witnessed rapid advances in the discovery and development of immune checkpoint inhibitors in cancer medicine, particularly drugs targeting programmed cell death 1 (PD-1) and programmed cell death ligand 1 (PD-L1) in non-small cell lung cancer (NSCLC). The proven antitumor efficacy coupled with low rates of drug-related toxicities observed, albeit idiosyncratic, with these novel immunotherapeutics have led to the registration of multiple PD-1 and PD-L1 inhibitors, such as nivolumab, pembrolizumab, and atezolizumab, in second-line advanced NSCLC, whereas durvalumab and avelumab are in late-phase clinical testing...
December 23, 2016: Current Problems in Cancer
keyword
keyword
47492
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"