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https://www.readbyqxmd.com/read/28644957/chemical-probes-for-visualizing-intact-animal-and-human-brain-tissue
#1
REVIEW
Hei Ming Lai, Wai-Lung Ng, Steve M Gentleman, Wutian Wu
Newly developed tissue clearing techniques can be used to render intact tissues transparent. When combined with fluorescent labeling technologies and optical sectioning microscopy, this allows visualization of fine structure in three dimensions. Gene-transfection techniques have proved very useful in visualizing cellular structures in animal models, but they are not applicable to human brain tissue. Here, we discuss the characteristics of an ideal chemical fluorescent probe for use in brain and other cleared tissues, and offer a comprehensive overview of currently available chemical probes...
June 22, 2017: Cell Chemical Biology
https://www.readbyqxmd.com/read/28641513/first-total-synthesis-of-pamamycin-621d
#2
Hassan Norouzi-Arasi, Xavier Jesus Salom-Roig, Steve Lanners, Gilles Hanquet
Pamamycin-621D, a member of a large family of macrodiolides with antimycobacterial properties, has been synthesized and fully characterized for the first time. A convergent and flexible strategy based on a key aldol coupling delivered this less abundant pamamycin congener. Furthermore, the synthesis of a new unsaturated precursor using cross-metathesis was developed in order to suppress regioselectivity issues in the aldol coupling step.
June 15, 2017: Combinatorial Chemistry & High Throughput Screening
https://www.readbyqxmd.com/read/28641121/is-inhibitory-control-involved-in-discriminating-pseudowords-that-contain-the-reversible-letters-b-and-d
#3
Lorie-Marlène Brault Foisy, Emmanuel Ahr, Steve Masson, Olivier Houdé, Grégoire Borst
Children tend to confuse reversible letters such as b and d when they start learning to read. According to some authors, mirror errors are a consequence of the mirror generalization (MG) process that allows one to recognize objects independently of their left-right orientation. Although MG is advantageous for the visual recognition of objects, it is detrimental for the visual recognition of reversible letters. Previous studies comparing novice and expert readers demonstrated that MG must be inhibited to discriminate reversible single letters...
June 19, 2017: Journal of Experimental Child Psychology
https://www.readbyqxmd.com/read/28640959/the-deeper-self-an-expanded-view-of-consciousness
#4
Steve Paulson, Siri Hustvedt, Mark Solms, Sonu Shamdasani
As science continues to explore the mysteries of the unconscious, two critical questions remain. First, can unconscious impulses, desires, and feelings be willfully raised to the level of the conscious self?, and, if so, would the unveiling of unconscious mechanisms lead to genuine self-knowledge or empowerment? Second, can we methodically tap into the unconscious to gear ourselves along more creative lines? If the unconscious is a source of intuitive and creative inspiration, how might a more expansive understanding of consciousness help us to flourish? How can we harness the intuitive parts of ourselves to think "outside the box," transcending the limitations of preconceived categories? And along those same lines, how would an expanded view of the unconscious frame our spiritual experiences or offer spiritual nourishment? Writer Siri Hustvedt, historian of psychology Sonu Shamdasani, and neuropsychologist Mark Solms will tackle everything from noetic experiences and the role of intuition to the phenomenon of peak experience and Jung's "collective unconscious...
June 22, 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28640717/wound-care-research-why-do-it
#5
Steve Jeffery
No abstract text is available yet for this article.
June 22, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28640655/usual-interstitial-pneumonia-can-be-detected-in-transbronchial-biopsies-using-machine-learning
#6
Daniel G Pankratz, Yoonha Choi, Urooj Imtiaz, Grażyna M Fedorowicz, Jessica D Anderson, Thomas V Colby, Jeffrey L Myers, David A Lynch, Kevin K Brown, Kevin R Flaherty, Mark P Steele, Steve D Groshong, Ganesh Raghu, Neil M Barth, P Sean Walsh, Jing Huang, Giulia C Kennedy, Fernando J Martinez
RATIONALE: Usual interstitial pneumonia (UIP) is the histopathologic hallmark of idiopathic pulmonary fibrosis. While UIP can be detected by high-resolution computed tomography (HRCT) of the chest, HRCT results are frequently inconclusive, and pathology from transbronchial biopsy (TBB) has poor sensitivity. Surgical lung biopsy (SLB) may be necessary for a definitive diagnosis. OBJECTIVES: To develop a genomic classifier in tissue obtained by TBB that distinguishes UIP from non-UIP, trained against central pathology as the reference standard...
June 22, 2017: Annals of the American Thoracic Society
https://www.readbyqxmd.com/read/28640487/a-qualitative-study-exploring-the-difficulties-influencing-decision-making-at-the-end-of-life-for-people-with-dementia
#7
Kethakie Lamahewa, Rammya Mathew, Steve Iliffe, Jane Wilcock, Jill Manthorpe, Elizabeth L Sampson, Nathan Davies
BACKGROUND: Dementia is a progressive neurodegenerative condition characterized by declining functional and cognitive abilities. The quality of end of life care for people with dementia in the UK can be poor. Several difficult decisions may arise at the end of life, relating to the care of the person with dementia, for example management of comorbidities. OBJECTIVE: To explore difficulties in decision making for practitioners and family carers at the end of life for people with dementia...
June 22, 2017: Health Expectations: An International Journal of Public Participation in Health Care and Health Policy
https://www.readbyqxmd.com/read/28639505/rationale-and-design-of-the-multiethnic-pharmacogenomics-in-childhood-asthma-consortium
#8
Niloufar Farzan, Susanne J Vijverberg, Anand K Andiappan, Lambang Arianto, Vojko Berce, Natalia Blanca-López, Hans Bisgaard, Klaus Bønnelykke, Esteban G Burchard, Paloma Campo, Glorisa Canino, Bruce Carleton, Juan C Celedón, Fook Tim Chew, Wen Chin Chiang, Michelle M Cloutier, Denis Daley, Herman T Den Dekker, Nicole F Dijk, Liesbeth Duijts, Carlos Flores, Erick Forno, Daniel B Hawcutt, Natalia Hernandez-Pacheco, Johan C de Jongste, Michael Kabesch, Gerard H Koppelman, Vangelis G Manolopoulos, Erik Melén, Somnath Mukhopadhyay, Sara Nilsson, Colin N Palmer, Maria Pino-Yanes, Munir Pirmohamed, Uros Potočnki, Jan A Raaijmakers, Katja Repnik, Maximilian Schieck, Yang Yie Sio, Rosalind L Smyth, Csaba Szalai, Kelan G Tantisira, Steve Turner, Marc P van der Schee, Katia M Verhamme, Anke H Maitland-van der Zee
AIM: International collaboration is needed to enable large-scale pharmacogenomics studies in childhood asthma. Here, we describe the design of the Pharmacogenomics in Childhood Asthma (PiCA) consortium. MATERIALS & METHODS: Investigators of each study participating in PiCA provided data on the study characteristics by answering an online questionnaire. RESULTS: A total of 21 studies, including 14,227 children/young persons (58% male), from 12 different countries are currently enrolled in the PiCA consortium...
June 22, 2017: Pharmacogenomics
https://www.readbyqxmd.com/read/28639023/uncertainties-in-vegetated-buffer-strip-function-in-controlling-phosphorus-export-from-agricultural-land-in-the-canadian-prairies
#9
Reza Habibiandehkordi, David A Lobb, Steve C Sheppard, Don N Flaten, Philip N Owens
Vegetated buffer strips (VBSs) are widely encouraged as a cost-effective strategy to address phosphorus (P) pollution associated with agricultural production. However, there is a lack of evidence in the effectiveness of these measures for tackling diffuse P pollution in cold-climate regions under concentrated runoff flow conditions. This research aimed to investigate the effects of VBSs on reducing P concentrations in surface runoff at three different watersheds in Manitoba, Canada. Surface runoff samples were collected in four sub-catchments from each watershed by installing paired weirs at 0...
June 22, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28638479/should-low-molecular-weight-psma-targeted-ligands-get-bigger-and-use-albumin-ligands-for-psma-targeting
#10
EDITORIAL
Steve S Huang, Warren D W Heston
Prostate Specific Membrane Antigen (PSMA) is strongly expressed in prostate cancer. Recently a number of low-molecular-weight inhibitors have demonstrated excellent PSMA targeting activity for both imaging as well as Lutecium-177 radiotherapy in human trials. The paper by Choy et al raises the question of whether we can further increase the effectiveness of PSMA targeted therapy by adding an albumin-binding entity to low-molecular-weight agents.
2017: Theranostics
https://www.readbyqxmd.com/read/28638383/non-canonical-glucocorticoid-receptor-transactivation-of-gilz-by-alcohol-suppresses-cell-inflammatory-response
#11
Hang Pong Ng, Scott Jennings, Jack Wang, Patricia E Molina, Steve Nelson, Guoshun Wang
Acute alcohol exposure suppresses cell inflammatory response. The underlying mechanism has not been fully defined. Here we report that alcohol was able to activate glucocorticoid receptor (GR) signaling in the absence of glucocorticoids (GCs) and upregulated glucocorticoid-induced leucine zipper (gilz), a prominent GC-responsive gene. Such a non-canonical activation of GR was not blocked by mifepristone, a potent GC competitor. The proximal promoter of gilz, encompassing five GC-responsive elements (GREs), was incorporated and tested in a luciferase reporter system...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28637850/hierarchical-complexity-and-the-size-limits-of-life
#12
Noel A Heim, Jonathan L Payne, Seth Finnegan, Matthew L Knope, Michał Kowalewski, S Kathleen Lyons, Daniel W McShea, Philip M Novack-Gottshall, Felisa A Smith, Steve C Wang
Over the past 3.8 billion years, the maximum size of life has increased by approximately 18 orders of magnitude. Much of this increase is associated with two major evolutionary innovations: the evolution of eukaryotes from prokaryotic cells approximately 1.9 billion years ago (Ga), and multicellular life diversifying from unicellular ancestors approximately 0.6 Ga. However, the quantitative relationship between organismal size and structural complexity remains poorly documented. We assessed this relationship using a comprehensive dataset that includes organismal size and level of biological complexity for 11 172 extant genera...
June 28, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28637658/decreased-myoblast-differentiation-in-chronic-binge-alcohol-administered-simian-immunodeficiency-virus-infected-male-macaques-role-of-decreased-mir-206
#13
Liz Simon, Stephen M Ford, Kejing Song, Paul Berner, Curtis Vande Stouwe, Steve Nelson, Gregory J Bagby, Patricia E Molina
Skeletal muscle stem cells play a critical role in regeneration of myofibers. We have previously demonstrated that chronic binge alcohol (CBA) markedly attenuates myoblast differentiation potential and myogenic gene expression. Muscle specific microRNAs are implicated in regulating myogenic genes. The aim of this study was to determine whether myoblasts isolated from asymptomatic CBA administered SIV-infected macaques treated with antiretroviral therapy (ART) showed similar impairments and if so, to elucidate potential underlying mechanisms...
June 21, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/28636458/contamination-of-firefighter-personal-protective-equipment-and-skin-and-the-effectiveness-of-decontamination-procedures
#14
Kenneth W Fent, Barbara Alexander, Jennifer Roberts, Shirley Robertson, Christine Toennis, Deborah Sammons, Stephen Bertke, Steve Kerber, Denise Smith, Gavin Horn
Firefighters' skin may be exposed to chemicals via permeation/penetration of combustion byproducts through or around personal protective equipment (PPE) or from the cross-transfer of contaminants on PPE to the skin. Additionally, volatile contaminants can evaporate from PPE following a response and be inhaled by firefighters. Using polycyclic aromatic hydrocarbons (PAHs) and volatile organic compounds (VOCs) as respective markers for non-volatile and volatile substances, we investigated the contamination of firefighters' turnout gear and skin following controlled residential fire responses...
June 21, 2017: Journal of Occupational and Environmental Hygiene
https://www.readbyqxmd.com/read/28636208/a-phase-i-trial-of-prn1008-a-novel-reversible-covalent-inhibitor-of-bruton-s-tyrosine-kinase-in-healthy-volunteers
#15
Patrick F Smith, Janakan Krishnarajah, Philip A Nunn, Ron J Hill, Dane Karr, D Tam, Mohammad Masjedizadeh, Jens O Funk, Steve G Gourlay
AIM: To evaluate the safety, tolerability, and PK/PD of PRN1008, a novel BTK inhibitor, in healthy volunteers, and thus determine the dose range for future clinical studies. METHODS: This was a two-part randomized, placebo controlled study in healthy volunteers using a liquid formulation. Part I was a single ascending dose design with dose levels of 50 to 1200 mg (n=6 active, 2 placebo per cohort); Part II was a multiple ascending dose design, with dose regimens ranging from 300 mg to 900 mg daily, either qd or bd for 10 days...
June 21, 2017: British Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28636160/species-specific-metabolism-of-naphthalene-and-phenanthrene-in-three-species-of-marine-teleosts-exposed-to-deepwater-horizon-crude-oil
#16
Erin L Pulster, Kevan Main, Dana Wetzel, Steve Murawski
The two most abundant polycyclic aromatic hydrocarbons (PAHs) measured in the Deepwater Horizon (DWH) crude oil, naphthalene and phenanthrene and their associated homologs, have both been shown to be acutely toxic in fish. Although fish have a relatively high metabolic capacity for PAHs, hydroxylated PAH (OH-PAHs) derivatives formed during the initial metabolic response can negatively impact the health of fish. Species-specific metabolism of naphthalene and phenanthrene was evaluated in three marine teleosts, red drum (Scianops ocellatus), Florida pompano (Trachinotus carolinus) and southern flounder (Paralichthys lethostigma)...
June 21, 2017: Environmental Toxicology and Chemistry
https://www.readbyqxmd.com/read/28635331/network-meta-analysis-of-liraglutide-versus-dpp-4-inhibitors-for-the-treatment-of-type-2-diabetes-in-japanese-patients
#17
Dieter Ayers, Steve Kanters, Rachel Goldgrub, Monica Hughes, Ryo Kato, Nana Kragh
AIMS: To determine the comparative efficacy and safety of liraglutide and dipeptidyl peptidiase-4 (DPP-4) inhibitors as antidiabetics for Japanese patients with uncontrolled type 2 diabetes (T2DM). METHODS AND MATERIALS: We searched for randomized-controlled trials (RCTs) evaluating outcomes among Japanese adults with uncontrolled T2DM and including liraglutide or DPP-4 inhibitors up to August 2016. We extracted data on trial and patient characteristics, and the following outcomes: HbA1c, weight, patients meeting HbA1c <7%, patients experiencing hypoglycemic events, microalbuminuria, estimated glomerular filtration rate (eGFR) and creatinine...
June 21, 2017: Current Medical Research and Opinion
https://www.readbyqxmd.com/read/28634649/assessment-of-cabozantinib-treatment-on-qt-interval-in-a-phase-3-study-in-medullary-thyroid-cancer-evaluation-of-indirect-qt-effects-mediated-through-treatment-induced-changes-in-serum-electrolytes
#18
Dale R Miles, Steven A Lacy, David R Wada, Steve Milwee, Yifah Yaron, Linh T Nguyen
PURPOSE: This study evaluated factors impacting QTc interval in a phase 3 trial of cabozantinib in progressive, metastatic, medullary thyroid cancer (MTC). METHODS: Electrocardiogram (12-lead ECG) measurements were obtained at screening, and at pre-dose, and 2, 4, and 6 h post-dose on Days 1 and 29 in a phase 3 study in patients with MTC treated with cabozantinib (140 mg/day). Central tendency analyses were conducted on baseline-corrected QTc values. Linear and nonlinear mixed-effects models were used to evaluate potential factors affecting the QTc interval, including serum electrolytes, patient demographics, and cabozantinib concentration...
June 20, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/28634390/increased-glutamate-in-somatosensory-cortex-in-functional-dyspepsia
#19
Arthur D P Mak, Georg Northoff, David K W Yeung, Winnie C W Chu, Steve C N Hui, Cynthia Cheung, Jessica Ching, Linda Lam, Sing Lee, Justin Wu
Functional Dyspepsia-Post-prandial Distress Syndrome (FD-PDS) was associated with mood-related increases in resting activity and lowered activation threshold in the somatosensory cortex (SSC), insula and perigenual anterior cingulate cortex(pgACC) in functional imaging studies. The underlying cortical neurochemical changes are unknown. We performed proton Magnetic Resonance Spectroscopy (1H-MRS) on 17 consecutive tertiary clinic-recruited psychotropic-naïve Rome III FD-PDS female and 17 age-sex matched healthy controls...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28634036/the-influence-of-sex-and-age-on-ventricular-arrhythmia-in-a-population-based-registry
#20
Kimberly Styles, John Sapp, Martin Gardner, Christopher Gray, Amir Abdelwahab, Ciorsti MacIntyre, Dongsheng Gao, Mousa Al-Harbi, Steve Doucette, Chris Theriault, Ratika Parkash
BACKGROUND: Post-hoc analyses of clinical trials and population-based studies have shown no difference in mortality between men and women, but often show that men are more likely to receive appropriate ICD therapy. We utilized a population-based registry to investigate the interaction of sex and age and the occurrence of ventricular arrhythmia in an ICD population. METHODS AND RESULTS: A total of 776 consecutive patients receiving an ICD for primary or secondary prevention in a provincial ICD registry were studied...
June 13, 2017: International Journal of Cardiology
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