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https://www.readbyqxmd.com/read/28531354/monomeric-polyglutamine-structures-that-evolve-into-fibrils
#1
David Punihaole, Ryan S Jakubek, Riley James Workman, Lauren E Marbella, Patricia Campbell, Jeffry D Madura, Sanford A Asher
We investigate the solution and fibril conformations and structural transitions of the polyglutamine (polyQ) peptide, D2Q10K2 (Q10), by synergistically using UV Resonance Raman (UVRR) spectroscopy and Molecular Dynamics (MD) simulations. We show that Q10 adopts two distinct, monomeric solution conformational states, a collapsed β-strand and a PPII-like structure that do not readily interconvert. This clearly indicates a high activation barrier in solution that prevents equilibration between these structures...
May 22, 2017: Journal of Physical Chemistry. B
https://www.readbyqxmd.com/read/28530486/y-balance-test-performance-following-a-competitive-field-hockey-season-a-pretest-posttest-study
#2
Matthew C Hoch, Lauren A Welsch, Emily M Hartley, Cameron J Powden, Johanna M Hoch
CONTEXT: The Y-Balance Test (YBT) is a dynamic balance assessment used as a preseason musculoskeletal screen to determine injury risk. While the YBT has demonstrated excellent test-retest reliability, it is unknown if YBT performance changes following participation in a competitive athletic season. OBJECTIVE: Determine if a competitive athletic season affects YBT performance in field hockey players. DESIGN: Pretest-posttest. SETTING: Laboratory...
May 22, 2017: Journal of Sport Rehabilitation
https://www.readbyqxmd.com/read/28529975/phylogenetic-analyses-suggest-that-factors-other-than-the-capsid-protein-play-a-role-in-the-epidemic-potential-of-gii-2-norovirus
#3
Kentaro Tohma, Cara J Lepore, Lauren A Ford-Siltz, Gabriel I Parra
Norovirus is the leading cause of acute gastroenteritis worldwide. For over two decades, a single genotype (GII.4) has been responsible for most norovirus-associated cases. However, during the winter of 2014 to 2015, the GII.4 strains were displaced by a rarely detected genotype (GII.17) in several countries of the Asian continent. Moreover, during the winter of 2016 to 2017, the GII.2 strain reemerged as predominant in different countries worldwide. This reemerging GII.2 strain is a recombinant virus that presents a GII...
May 2017: MSphere
https://www.readbyqxmd.com/read/28529895/special-topics-in-immunotherapy-and-radiation-therapy-reirradiation-and-palliation
#4
REVIEW
Tracey Evans, Christine Ciunci, Lauren Hertan, Daniel Gomez
Immunotherapy has revolutionized the treatment of non-small cell lung cancer (NSCLC). However, thus far, its use has only been established in patients with advanced disease either as first-line therapy in selected patients or following chemotherapy. What is not yet known is how best to incorporate radiation with immunotherapy agents. Many patients with advanced disease can benefit from palliative radiation, but the combination of radiation with immunotherapy has the potential to increase the toxicity of both modalities...
April 2017: Translational Lung Cancer Research
https://www.readbyqxmd.com/read/28529824/to-cough-or-not-to-cough-examining-the-potential-utility-of-cough-testing-in-the-clinical-evaluation-of-swallowing
#5
Stephanie A Watts, Lauren Tabor, Emily K Plowman
PURPOSE: The clinical swallowing evaluation (CSE) represents a critical component of a comprehensive assessment of deglutition. Although universally utilized across clinical settings, the CSE demonstrates limitations in its ability to accurately identify all individuals with dysphagia. There exists a need to improve assessment and screening techniques to improve health outcomes, treatment recommendations and ultimately mortality in individuals at risk for dysphagia. The following narrative review provides a summary of currently used validated CSE's and examines the potential role of cough testing and screening in the CSE...
December 2016: Current Physical Medicine and Rehabilitation Reports
https://www.readbyqxmd.com/read/28529627/-18-f-ge-180-pet-detects-reduced-microglia-activation-after-lm11a-31-therapy-in-a-mouse-model-of-alzheimer-s-disease
#6
Michelle L James, Nadia P Belichenko, Adam J Shuhendler, Aileen Hoehne, Lauren E Andrews, Christina Condon, Thuy-Vi V Nguyen, Vladimer Reiser, Paul Jones, William Trigg, Jianghong Rao, Sanjiv S Gambhir, Frank M Longo
Microglial activation is a key pathological feature of Alzheimer's disease (AD). PET imaging of translocator protein 18 kDa (TSPO) is a strategy to detect microglial activation in vivo. Here we assessed flutriciclamide ([(18)F]GE-180), a new second-generation TSPO-PET radiotracer, for its ability to monitor response to LM11A-31, a novel AD therapeutic in clinical trials. AD mice displaying pathology were treated orally with LM11A-31 for 3 months. Subsequent [(18)F]GE-180-PET imaging revealed significantly lower signal in cortex and hippocampus of LM11A-31-treated AD mice compared to those treated with vehicle, corresponding with decreased levels of TSPO immunostaining and microglial Iba1 immunostaining...
2017: Theranostics
https://www.readbyqxmd.com/read/28529484/targeting-adenosine-receptors-for-the-treatment-of-cardiac-fibrosis
#7
REVIEW
Elizabeth A Vecchio, Paul J White, Lauren T May
Adenosine is a ubiquitous molecule with key regulatory and cytoprotective mechanisms at times of metabolic imbalance in the body. Among a plethora of physiological actions, adenosine has an important role in attenuating ischaemia-reperfusion injury and modulating the ensuing fibrosis and tissue remodeling following myocardial damage. Adenosine exerts these actions through interaction with four adenosine G protein-coupled receptors expressed in the heart. The adenosine A2B receptor (A2BAR) is the most abundant adenosine receptor (AR) in cardiac fibroblasts and is largely responsible for the influence of adenosine on cardiac fibrosis...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28528704/from-neuro-pigments-to-neural-efficiency-the-relationship-between-retinal-carotenoids-and-behavioral-and-neuroelectric-indices-of-cognitive-control-in-childhood
#8
Anne M Walk, Naiman A Khan, Sasha M Barnett, Lauren B Raine, Arthur F Kramer, Neal J Cohen, Christopher J Moulton, Lisa M Renzi-Hammond, Billy R Hammond, Charles H Hillman
Lutein and zeaxanthin are plant pigments known to preferentially accumulate in neural tissue. Macular Pigment Optical Density (MPOD), a non-invasive measure of retinal carotenoids and surrogate measure of brain carotenoid concentration, has been associated with disease prevention and cognitive health. Superior MPOD status in later adulthood has been shown to provide neuroprotective effects on cognition. Given that childhood signifies a critical period for carotenoid accumulation in brain, it is likely that the beneficial impact would be evident during development, though this relationship has not been directly investigated...
May 18, 2017: International Journal of Psychophysiology
https://www.readbyqxmd.com/read/28528594/with-a-little-help-from-my-friends-racial-and-gender-differences-in-the-role-of-social-support-in-later-life-depression-medication-adherence
#9
Lauren B Gerlach, Janet Kavanagh, Daphne Watkins, Claire Chiang, Hyungjin M Kim, Helen C Kales
BACKGROUND: Social support has been shown to be an important factor in improving depression symptom outcomes, yet less is known regarding its impact on antidepressant medication adherence. This study sought to evaluate the role of perceived social support on adherence to new antidepressant medication prescriptions in later-life depression. METHODS: Data from two prospective observational studies of participants ≥60 years old, diagnosed with depression, and recently prescribed a new antidepressant (N = 452)...
May 22, 2017: International Psychogeriatrics
https://www.readbyqxmd.com/read/28528506/exposure-of-marine-mussels-to-diclofenac-modulation-of-prostaglandin-biosynthesis
#10
Frédérique Courant, Lauren Arpin-Pont, Bénilde Bonnefille, Sébastien Vacher, Marina Picot-Groz, Elena Gomez, Hélène Fenet
Human pharmaceuticals, such as nonsteroidal anti-inflammatory drugs (NSAIDs), are an emerging threat to marine organisms. NSAIDs act through inhibition of cyclooxygenase (COX) conversion of arachidonic acid into prostaglandins. One experiment was carried out whereby marine mussels were exposed for 72 h to 1 and 100 μg/L diclofenac (DCF). A specific and sensitive method using liquid chromatography high-resolution tandem mass spectrometry was developed to quantify DCF in mussel tissues. The developed method could also clearly identify and quantify COX products, i...
May 21, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28528393/chronic-and-episodic-stress-predict-physical-symptom-bother-following-breast-cancer-diagnosis
#11
Lauren N Harris, Margaret R Bauer, Joshua F Wiley, Constance Hammen, Jennifer L Krull, Catherine M Crespi, Karen L Weihs, Annette L Stanton
Breast cancer patients often experience adverse physical side effects of medical treatments. According to the biobehavioral model of cancer stress and disease, life stress during diagnosis and treatment may negatively influence the trajectory of women's physical health-related adjustment to breast cancer. This longitudinal study examined chronic and episodic stress as predictors of bothersome physical symptoms during the year after breast cancer diagnosis. Women diagnosed with breast cancer in the previous 4 months (N = 460) completed a life stress interview for contextual assessment of chronic and episodic stress severity at study entry and 9 months later...
May 20, 2017: Journal of Behavioral Medicine
https://www.readbyqxmd.com/read/28528291/the-association-of-lifetime-physical-inactivity-with-bladder-and-renal-cancer-risk-a-hospital-based-case-control-analysis
#12
Rikki Cannioto, John Lewis Etter, Lauren Beryl Guterman, Janine M Joseph, Nicholas R Gulati, Kristina L Schmitt, Michael J LaMonte, Ryan Nagy, Albina Minlikeeva, James Brian Szender, Kirsten B Moysich
OBJECTIVES: Recreational physical inactivity has been gaining recognition as an independent epidemiological exposure of interest in relation to cancer endpoints due to evidence suggesting that it may associate with cancer independent of obesity. In the current analyses, we examined the associations of lifetime recreational physical inactivity with renal and bladder cancer risk. METHODS: In this hospital-based case-control study, we identified N=160 renal cancer patients, N=208 bladder cancer patients, and N=766 age frequency-matched controls without cancer...
May 18, 2017: Cancer Epidemiology
https://www.readbyqxmd.com/read/28528132/the-perceived-medical-condition-self-management-scale-can-be-applied-to-patients-with-chronic-kidney-disease
#13
Marcus G Wild, Kenneth A Wallston, Jamie A Green, Lauren B Beach, Ebele Umeukeje, Julie A Wright Nunes, T Alp Ikizler, Julia Steed, Kerri L Cavanaugh
Chronic Kidney Disease (CKD) is a major burden on patients and the health care system. Treatment of CKD requires dedicated involvement from both caretakers and patients. Self-efficacy, also known as perceived competence, contributes to successful maintenance of patient's CKD self-management behaviors such as medication adherence and dietary regulations. Despite a clear association between self-efficacy and improved CKD outcomes, there remains a lack of validated self-report measures of CKD self-efficacy. To address this gap, the Perceived Kidney/Dialysis Self-Management Scale (PKDSMS) was adapted from the previously validated Perceived Medical Condition Self-Management Scale...
May 18, 2017: Kidney International
https://www.readbyqxmd.com/read/28528076/systematic-review-can-non-mydriatic-cameras-accurately-detect-diabetic-retinopathy
#14
REVIEW
Chloe Bedard, Siying Sherry Liu, Christopher Patterson, Hertzel Gerstein, Lauren Griffith
AIMS: Diabetes puts many individuals at risk for developing diabetic retinopathy (DR). Non-mydriatic (NM) retinal photography without pharmacological pupil dilation can be used to detect DR, however, its value in a general clinical setting has not been established. The objective of this review is to evaluate the validity of NM retinal photos, as compared to the reference standard of seven standard stereoscopic 30 degree field photographs (7SF), for their use of detecting DR in community-dwelling adults...
May 10, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28527752/so-you-want-to-be-published-pearls-for-journal-publishing
#15
EDITORIAL
Lauren L Patton
No abstract text is available yet for this article.
April 13, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28527547/the-optimal-time-and-method-for-surgical-prewarming-a-comprehensive-review-of-the-literature
#16
Lauren Connelly, Emily Cramer, Quinn DeMott, Jennifer Piperno, Bethany Coyne, Clara Winfield, Michael Swanberg
PURPOSE: Inadvertent hypothermia is a common problem in the operating room. This can contribute to many unfavorable outcomes --rising costs, increased complications, and higher morbidity rates. DESIGN: This review determined the optimal method and time to prewarm a surgical patient to prevent perioperative hypothermia. METHODS: CINAHL and PubMed were searched. Fourteen articles were ultimately included in this review. FINDINGS: Based on the literature reviewed, it was suggested that forced-air warming was most effective in preventing perioperative hypothermia...
June 2017: Journal of Perianesthesia Nursing: Official Journal of the American Society of PeriAnesthesia Nurses
https://www.readbyqxmd.com/read/28527097/the-flexibility-scale-development-and-preliminary-validation-of-a-cognitive-flexibility-measure-in-children-with-autism-spectrum-disorders
#17
John F Strang, Laura G Anthony, Benjamin E Yerys, Kristina K Hardy, Gregory L Wallace, Anna C Armour, Katerina Dudley, Lauren Kenworthy
Flexibility is a key component of executive function, and is related to everyday functioning and adult outcomes. However, existing informant reports do not densely sample cognitive aspects of flexibility; the Flexibility Scale (FS) was developed to address this gap. This study investigates the validity of the FS in 221 youth with ASD and 57 typically developing children. Exploratory factor analysis indicates a five-factor scale: Routines/rituals, transitions/change, special interests, social flexibility, and generativity...
May 19, 2017: Journal of Autism and Developmental Disorders
https://www.readbyqxmd.com/read/28527057/behavioral-therapy-emotion-and-pain-a-common-anatomical-background
#18
Lauren A-M Dahlke, Jeffrey J Sable, Frank Andrasik
Emotion and pain are closely intertwined in the brain, as the human experience of pain includes both affective and nociceptive components. Although each of these components relies on a different system in the brain, the two systems converge on the anterior cingulate and insular cortices, which interact with the prefrontal cortex and other frontal structures to influence behavior. Both emotional and physical pain elicit activity in these common areas, and conditions that affect one system (e.g., drugs, neural plasticity) may affect the function of the other-ultimately altering the experience of pain...
May 2017: Neurological Sciences
https://www.readbyqxmd.com/read/28526694/measuring-osmosis-and-hemolysis-of-red-blood-cells
#19
Lauren K Goodhead, Frances M MacMillan
Since the discovery of the composition and structure of the mammalian cell membrane, biologists have had a clearer understanding of how substances enter and exit the cell's interior. The selectively permeable nature of the cell membrane allows the movement of some solutes and prevents the movement of others. This has important consequences for cell volume and the integrity of the cell and, as a result, is of utmost clinical importance, for example in the administration of isotonic intravenous infusions. The concepts of osmolarity and tonicity are often confused by students as impermeant isosmotic solutes such as NaCl are also isotonic; however, isosmotic solutes such as urea are actually hypotonic due to the permeant nature of the membrane...
June 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/28526298/regulation-of-the-glycerol-transporter-aquaporin-3-by-histone-deacetylase-3-and-p53-in-keratinocytes
#20
Vivek Choudhary, Lawrence O Olala, Karen Kagha, Zhi-Qiang Pan, Xunsheng Chen, Rong Yang, Abigail Cline, Inas Helwa, Lauren Marshall, Ismail Kaddour-Djebbar, Meghan E McGee-Lawrence, Wendy B Bollag
Aquaporin-3 (AQP3), a water and glycerol channel, plays an important role in epidermal function, with studies demonstrating its involvement in keratinocyte proliferation, differentiation and migration and epidermal wound healing and barrier repair. Increasing speculation about the use of histone deacetylase (HDAC) inhibitors to treat skin diseases led us to investigate HDAC's role in the regulation of AQP3. The broad-spectrum HDAC inhibitor, suberolyanilide hydroxamic acid (SAHA) induced AQP3 mRNA and protein expression in a dose- and time-dependent manner in normal keratinocytes...
May 16, 2017: Journal of Investigative Dermatology
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