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https://www.readbyqxmd.com/read/29352492/variability-of-pulsed-energy-outputs-from-three-dermatology-lasers-during-multiple-simulated-treatments
#1
J Britton
BACKGROUND: Dermatology laser treatments are undertaken at regional departments using lasers of different powers and wavelengths. In order to achieve good outcomes there need to be good consistency of laser output across different weeks as it is custom and practice to break down the treatments into individual fractions. Departments will also collect information from test patches to help decide on the most appropriate treatment parameters for individual patients. OBJECTIVES: The objective of these experiments is to assess the variability of the energy outputs from a small number of lasers across multiple weeks at realistic parameters...
January 20, 2018: Photodermatology, Photoimmunology & Photomedicine
https://www.readbyqxmd.com/read/29352466/experimental-evidence-that-density-dependence-strongly-influences-plant-invasions-through-fragmented-landscapes
#2
Jennifer L Williams, Jonathan M Levine
Populations of range expanding species encounter patches of both favorable and unfavorable habitat as they spread across landscapes. Theory shows that increasing patchiness slows the spread of populations modeled with continuously varying population density when dispersal is not influence by the environment or individual behavior. However, as is found in uniformly favorable landscapes, spread remains driven by fecundity and dispersal from low density individuals at the invasion front. In contrast, when modeled populations are composed of discrete individuals, patchiness causes populations to build up to high density before dispersing past unsuitable habitat, introducing an important influence of density dependence on spread velocity...
January 20, 2018: Ecology
https://www.readbyqxmd.com/read/29351933/vanadium-allergy-following-total-knee-arthroplasty
#3
Fidel Peat, Ross Coomber, Adnan Rana, Alastair Vince
Allergic reactions to metals following joint arthroplasty represent a rare and poorly understood phenomenon. Much is still unknown regarding the natural history of this complication, and how it can best be prevented and managed. We present a case of a 68-year-old woman who underwent a left total knee arthroplasty for treatment of osteoarthritis. After an initial uneventful postoperative course, she developed a troublesome erythematous rash both around the incision site and over her trunk. Blood testing revealed no evidence of infection and clinically her prosthesis was functioning well...
January 18, 2018: BMJ Case Reports
https://www.readbyqxmd.com/read/29351460/macrophage-dependent-impairment-of-%C3%AE-2-adrenergic-autoreceptor-function-in-sympathetic-neurons-from-doca-salt-but-not-high-fat-diet-induced-hypertensive-rats
#4
Ryan Kwun-Yee Mui, Roxanne Fernandes, Hannah Garver, Nico van Rooijen, James J Galligan
DOCA-salt and obesity-related hypertension are associated with inflammation and sympathetic nervous system hyperactivity. Prejunctional α2-adrenergic receptors (α2ARs) provide negative feedback to norepinephrine release from sympathetic nerves through inhibition of N-type Ca2+ channels. Increased neuronal norepinephrine release in DOCA-salt and obesity-related hypertension occurs through impaired α2AR signaling, however, the mechanisms involved are unclear. Mesenteric arteries are resistance arteries that receive sympathetic innervation from the superior mesenteric and celiac ganglia (SMCG)...
January 5, 2018: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/29349695/efficacy-of-atopy-patch-testing-in-directed-dietary-therapy-of-eosinophilic-esophagitis-a-pilot-study
#5
Jason D Eckmann, Karthik Ravi, David A Katzka, Dawn R Davis, Jacalyn A See, Debra R Geno, Lori A Kryzer, Jeffrey A Alexander
BACKGROUND: Atopy patch testing (APT) has shown potential for predicting dietary food triggers in studies of children and adolescents with eosinophilic esophagitis (EoE). AIMS: To assess the efficacy of APT in adults with EoE. METHODS: We conducted a prospective open-label pilot study of patients ≥ 18 years old with diagnosis of EoE at Mayo Clinic in Rochester, Minnesota, from November 2014 to January 2016. All patients underwent patch testing using intact food products, followed by a six food elimination diet and stepwise food reintroduction...
January 18, 2018: Digestive Diseases and Sciences
https://www.readbyqxmd.com/read/29349368/severe-generalized-dermatitis-in-a-nickel-allergic-patient-with%C3%A2-a%C3%A2-popliteal-artery-nitinol-stent
#6
Andres Guerra, Melissa Kirkwood
We present the case of a patient who developed a full-body desquamating macular-papular, pruritic rash after endovascular placement of a popliteal artery nitinol stent for acute limb ischemia. The rash was resistant to high-dose steroid and immunosuppressive treatment and intensive topical treatment. Patch testing revealed nickel allergy. The stented arterial segment was removed, with significant improvement in his symptoms that allowed the cessation of prednisone and topical treatments. The epidemiology, pathophysiology, and clinical effect of nickel allergy are discussed in addition to the use of nickel-alloy stents...
March 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29346340/disparities-in-preconception-health-indicators-%C3%A2-behavioral-risk-factor-surveillance-system-2013-2015-and-pregnancy-risk-assessment-monitoring-system-2013-2014
#7
Cheryl Robbins, Sheree L Boulet, Isabel Morgan, Denise V D'Angelo, Lauren B Zapata, Brian Morrow, Andrea Sharma, Charlan D Kroelinger
PROBLEM/CONDITION: Preconception health is a broad term that encompasses the overall health of nonpregnant women during their reproductive years (defined here as aged 18-44 years). Improvement of both birth outcomes and the woman's health occurs when preconception health is optimized. Improving preconception health before and between pregnancies is critical for reducing maternal and infant mortality and pregnancy-related complications. The National Preconception Health and Health Care Initiative's Surveillance and Research work group suggests ten prioritized indicators that states can use to monitor programs or activities for improving the preconception health status of women of reproductive age...
January 19, 2018: MMWR. Surveillance Summaries: Morbidity and Mortality Weekly Report. Surveillance Summaries
https://www.readbyqxmd.com/read/29344589/magnetism-tuning-strategies-for-graphene-oxide-based-on-magnetic-oligoacene-oxide-patches-model
#8
Yanjie Wen, Chia-Liang Yen, Linyin Yan, Hirohiko Kono, Sheng-Hsien Lin, Yong-Chien Ling
Graphene oxide (GO) has wide application potential owing to its 2D structure and diverse modification sites for various targeted uses. The introduction of magnetism into GO structures has further advanced the controllability of the application of GO materials. Herein, the concept of modular design and modeling was applied to tune the magnetism of GO. To obtain desirable magnetic properties, diradical-structured GO patches were formed by the introduction of two functional groups to break the Kekule structure of the benzene ring...
January 18, 2018: Physical Chemistry Chemical Physics: PCCP
https://www.readbyqxmd.com/read/29343575/high-resolution-sequencing-of-viral-populations-during-early-siv-infection-reveals-evolutionary-strategies-for-rapid-escape-from-emerging-env-specific-antibody-responses
#9
Sergio Ita, Alison K Hill, Evan C Lam, Fay J Dufort, Xiao Yang, Ruchi Newman, Sivan Leviyang, Ismael B Fofana, Welkin E Johnson
Primate lentiviruses, including the human and simian immunodeficiency viruses (HIV and SIV), produce infections marked by persistent, ongoing viral replication. This occurs despite the presence of virus-specific adaptive immune responses, including antibodies targeting the viral envelope glycoprotein (Env), and evolution of antibody-escape variants is a well-documented feature of lentiviral infection. Here, we examined the evolutionary dynamics of the SIV env gene during early infection (≤ 29 weeks post-infection) in a cohort of four SIVmac251-infected rhesus macaques...
January 17, 2018: Journal of Virology
https://www.readbyqxmd.com/read/29341884/acute-stress-persistently-alters-locus-coeruleus-function-and-anxiety-like-behavior-in-adolescent-rats
#10
Olga Borodovitsyna, Matthew D Flamini, Daniel J Chandler
Stress is a physiological state characterized by altered neuroendocrine signaling, behavioral arousal, and anxiety. Chronic or traumatic stress may predispose individuals for multiple somatic and psychiatric illnesses. The locus coeruleus (LC) is a major node in the stress response that integrates input from multiple stress responsive neural circuits and releases norepinephrine throughout the central nervous system to promote vigilance and anxiety. Many mood disorders associated with prior stress are characterized by chronically altered noradrenergic signaling, yet the long-term impact of an acute stressor on LC function is not clear...
January 13, 2018: Neuroscience
https://www.readbyqxmd.com/read/29341416/resveratrol-influences-pancreatic-islets-by-opposing-effects-on-electrical-activity-and-insulin-release
#11
Simone Brouwer, Theresa Hoffmeister, Anne Gresch, Lisa Schönhoff, Martina Düfer
SCOPE: Resveratrol is suggested to improve glycemic control by activation of sirtuin 1 (SIRT1) and has already been tested clinically. Our investigation characterizes the targets of resveratrol in pancreatic beta cells and their contribution to short- and long-term effects on insulin secretion. METHODS AND RESULTS: Islets or beta cells were isolated from C57Bl/6N mice. Electrophysiology was performed with microelectrode arrays and patch-clamp technique, insulin secretion and content were determined by radioimmunoassay, cAMP was measured by enzyme-linked immunosorbent assay and cytosolic Ca2+ concentration by fluorescence methods...
January 17, 2018: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29341190/first-case-report-of-acute-generalized-exanthematous-pustulosis-agep-caused-by-gadolinium-confirmed-by-patch-testing
#12
M Teresa Bordel Gómez, Cristina Martín García, Carmen Meseguer Yebra, M Isabel Zafra Cobo, M Esther Cardeñoso Álvarez, Juan Sánchez Estella
No abstract text is available yet for this article.
February 2018: Contact Dermatitis
https://www.readbyqxmd.com/read/29341185/comparing-patch-test-results-of-methylchloroisothiazolinone-methylisothiazolinone-tested-with-both-true-test%C3%A2-and-100%C3%A2-ppm-using-investigator-loaded-chambers
#13
Daan Dittmar, Marie L Schuttelaar
No abstract text is available yet for this article.
February 2018: Contact Dermatitis
https://www.readbyqxmd.com/read/29335317/reduced-n-type-ca2-channels-in-atrioventricular-ganglion-neurons-are-involved-in-ventricular-arrhythmogenesis
#14
Dongze Zhang, Huiyin Tu, Liang Cao, Hong Zheng, Robert L Muelleman, Michael C Wadman, Yu-Long Li
BACKGROUND: Attenuated cardiac vagal activity is associated with ventricular arrhythmogenesis and related mortality in patients with chronic heart failure. Our recent study has shown that expression of N-type Ca2+ channel α-subunits (Cav2.2-α) and N-type Ca2+ currents are reduced in intracardiac ganglion neurons from rats with chronic heart failure. Rat intracardiac ganglia are divided into the atrioventricular ganglion (AVG) and sinoatrial ganglion. Ventricular myocardium receives projection of neuronal terminals only from the AVG...
January 15, 2018: Journal of the American Heart Association
https://www.readbyqxmd.com/read/29333846/-food-allergy-in-children-recommendations-for-diagnosis-and-treatment
#15
(no author information available yet)
Food allergy arises from a specific immune response induced by food exposure. It is the first cause of anaphylaxis in childhood. Its prevalence increased exponentially in western countries. The proteins most frequently involved in infants are cow's milk and hen's egg; and in adults, seafood. Peanuts have the same frequency in both groups. The clinical manifestations and methodology of study are directly related to the pathophysiology of the disease. Clinical history, skin prick test, patch test, and food oral challenge are essential to arrive at a correct diagnosis, that will avoid unnecessary exclusions or exposures that carry life risk...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29333591/differential-inhibition-of-nav1-7-and-neuropathic-pain-by-hybridoma-produced-and-recombinant-monoclonal-antibodies-that-target-nav1-7-differential-activities-of-nav1-7-targeting-monoclonal-antibodies
#16
Sangsu Bang, Jiho Yoo, Xingrui Gong, Di Liu, Qingjian Han, Xin Luo, Wonseok Chang, Gang Chen, Sang-Taek Im, Yong Ho Kim, Judith A Strong, Ma-Zhong Zhang, Jun-Ming Zhang, Seok-Yong Lee, Ru-Rong Ji
The voltage-gated Na+ channel subtype Nav1.7 is important for pain and itch in rodents and humans. We previously showed that a Nav1.7-targeting monoclonal antibody (SVmab) reduces Na+ currents and pain and itch responses in mice. Here, we investigated whether recombinant SVmab (rSVmab) binds to and blocks Nav1.7 similar to SVmab. ELISA tests revealed that SVmab was capable of binding to Nav1.7-expressing HEK293 cells, mouse DRG neurons, human nerve tissue, and the voltage-sensor domain II of Nav1.7. In contrast, rSVmab showed no or weak binding to Nav1...
January 15, 2018: Neuroscience Bulletin
https://www.readbyqxmd.com/read/29333346/boundaries-in-ground-beetle-coleoptera-carabidae-and-environmental-variables-at-the-edges-of-forest-patches-with-residential-developments
#17
Doreen E Davis, Sara A Gagné
Background: Few studies of edge effects on wildlife objectively identify habitat edges or explore non-linear responses. In this paper, we build on ground beetle (Coleoptera: Carabidae) research that has begun to address these domains by using triangulation wombling to identify boundaries in beetle community structure and composition at the edges of forest patches with residential developments. We hypothesized that edges are characterized by boundaries in environmental variables that correspond to marked discontinuities in vegetation structure between maintained yards and forest...
2018: PeerJ
https://www.readbyqxmd.com/read/29332717/patch-testing-for-nonimmediate-cutaneous-adverse-drug-reactions
#18
Zachary Zinn, Swapna Gayam, Malcolm P Chelliah, Golara Honari, Joyce Teng
No abstract text is available yet for this article.
February 2018: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29332097/is-the-atopy-patch-test-reliable-in-the-evaluation-of-food-allergy-related-atopic-dermatitis
#19
Mahboubeh Mansouri, Elham Rafiee, Sepideh Darougar, Mehrnaz Mesdaghi, Zahra Chavoshzadeh
BACKGROUND: Aeroallergens and food allergens are found to be relevant in atopic dermatitis. The atopy patch test (APT) can help to detect food allergies in children with atopic dermatitis. This study evaluates if the APT is a valuable tool in the diagnostic workup of children with food allergy-related atopic dermatitis. METHODS: 42 children between 6 months and 12 years of age were selected at the Mofid Children Hospital. Atopic dermatitis was diagnosed, and the severity of the disease was determined...
January 13, 2018: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29331461/stabilizing-vitamin-d3-using-the-molten-globule-state-of-%C3%AE-lactalbumin
#20
Jannik Nedergaard Pedersen, Henrik V Sørensen, Daniel E Otzen
α-Lactalbumin (α-LA) is the second most abundant bovine whey protein. It has been intensively studied because of its readiness to populate the molten globular (MG) state, a partially folded state with native levels of secondary structure but loss of tertiary structure. The MG state of α-LA exposes a significant number of hydrophobic patches that could be used to bind and stabilize small hydrophobic molecules such as vitamin D3 (vitD). Accordingly, we tested the ability of α-LA to stabilize vitD in a pH interval from 7...
January 10, 2018: Journal of Dairy Science
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