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https://www.readbyqxmd.com/read/29778747/novel-peptide-inhibits-inflammation-by-suppressing-of-protease-activated-receptor-2
#1
Bora Kim, Hyun-Soo Kim
We synthesized and investigated the effects of a novel peptide B, RRFSLLRY as a novel PAR-2 antagonist. Peptide B decreased calcium levels in HaCat cells stimulated with trypsin and PAR-2 activator (SLIGKV) and cytokeratin 14 and PCNA was decreased by peptide B. Peptides B also reduced the expression of inflammatory cytokines such as TNF-α and interleukin-6. Significant increase of oxazolone-induced transepidermal water loss (TEWL) was decreased by the addition of peptide B in hairless mice. These findings suggest that the anti-inflammatory effect of peptide B is due to inhibition of PAR-2 signaling...
May 17, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29778436/enhanced-central-venous-catheter-bundle-for-pediatric-parenteral-dependent-intestinal-failure
#2
Jennifer A Ormsby, Bola Bukoye, Debra Lajoie, Herminia Shermont, Lisa Martin, Kierrah Leger, Judy Mahoney, Gail Potter-Bynoe, Jane Carpenter, Al Ozonoff, Grace M Lee
BACKGROUND: Central line-associated bloodstream infections (CLABSIs) cause substantial morbidity and increase antimicrobial use and length of stay among hospitalized children in the United States. CLABSI occurs more frequently among high-risk pediatric patients, such as those with intestinal failure (IF) who are parenteral nutrition (PN) dependent. Following an increase in CLABSI rates, a quality improvement (QI) initiative was implemented. METHODS: Using QI methodology, an enhanced central venous catheter (CVC) maintenance bundle was developed and implemented on 2 units for pediatric PN-dependent patients with IF...
May 16, 2018: American Journal of Infection Control
https://www.readbyqxmd.com/read/29777691/improving-electrical-properties-of-ipsc-cardiomyocytes-by-enhancing-cx43-expression
#3
Valentin Sottas, Carl-Mattheis Wahl, Mihnea C Trache, Michael Bartolf-Kopp, Sidney Cambridge, Markus Hecker, Nina D Ullrich
The therapeutic potential of induced pluripotent stem cell-derived cardiomyocytes (iPSC-CMs) is limited by immature functional features including low impulse propagation and reduced cell excitability. Key players regulating electrical activity are voltage-gated Na+ channels (Nav 1.5) and gap junctions built from connexin-43 (Cx43). Here we tested the hypothesis that enhanced Cx43 expression increases intercellular coupling and influences excitability by modulating Nav 1.5. Using transgenic approaches, Cx43 and Nav 1...
May 16, 2018: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/29774408/possible-association-of-cag-repeat-polymorphism-in-kcnn3-encoding-the-potassium-channel-sk3-with-oxaliplatin-induced-neurotoxicity
#4
Benjamin Anon, Bérenger Largeau, Alban Girault, Aurélie Chantome, Morgane Caulet, Clémence Perray, Driffa Moussata, Christophe Vandier, Chantal Barin-Le Guellec, Thierry Lecomte
INTRODUCTION: Data suggest a role of the potassium channel SK3 (KCNN3 gene) in oxaliplatin-induced neurotoxicity (OIN). Length variations in the polymorphic CAG repeat of the KCNN3 gene may be associated with the risk of OIN. MATERIALS AND METHODS: We performed patch-clamp experiments on HEK293 cell lines, expressing SK3 channel isoforms with short (11) or long (24) CAG repetitions, to measure intracellular calcium concentrations to test the effects of oxaliplatin on current density...
May 17, 2018: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29771357/a-promotive-effect-for-halofuginone-on-membrane-repair-and-synaptotagmin-7-levels-in-muscle-cells-of-dysferlin-null-mice
#5
Hila Barzilai-Tutsch, Melissa Dewulf, Christophe Lamaze, Gillian Butler Browne, Mark Pines, Orna Halevy
In the absence of dysferlin, skeletal muscle cells fail to reseal properly after injury, resulting in slow progress of the dysferlinopathy muscular dystrophy. Halofuginone, a leading agent in preventing fibrosis in muscular dystrophies, was tested for its effects on membrane resealing post-injury. A hypo-osmotic shock assay on myotubes derived from wild-type and dysferlin-null (dysf-/-) mice revealed that pre-treatment with halofuginone reduces the percentage of membrane-ruptured myotubes only in dysf-/- myotubes...
May 16, 2018: Human Molecular Genetics
https://www.readbyqxmd.com/read/29769365/testing-the-heat-dissipation-limit-theory-in-a-breeding-passerine
#6
Jan-Åke Nilsson, Andreas Nord
The maximum work rate of animals has recently been suggested to be determined by the rate at which excess metabolic heat generated during work can be dissipated (heat dissipation limitation (HDL) theory). As a first step towards testing this theory in wild animals, we experimentally manipulated brood size in breeding marsh tits ( Poecile palustris ) to change their work rate. Parents feeding nestlings generally operated at above-normal body temperatures. Body temperature in both males and females increased with maximum ambient temperature and with manipulated work rate, sometimes even exceeding 45°C, which is close to suggested lethal levels for birds...
May 16, 2018: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/29767482/multicenter-clinical-trial-on-a-permanent-hair-dye-containing-paratoluenediamine
#7
Caterina Foti, Nicola Balato, Antonio Cristaudo, Cataldo Patruno, Paolo Pigatto, Marina Ambrifi, Tamara Bufano, Giovanni Damiani, Mariagrazia De Rocco, Marco Diani, Maddalena Napolitano, Paolo Romita
BACKGROUND: Adverse reactions to hair dyes are frequent and usually caused by sensitization to paraphenylenediamine (PPD). The aim of the study was to evaluate the tolerability of a PPD-free permanent hair dye (Shine On, BioNike, Milan, Italy) containing paratoluenediamine (PTD) in a group of subjects sensitized to PPD. METHODS: The trial, which carried out at four dermatology centers, included subjects sensitized to PPD that turned out negative to patch testing to PTD...
August 2018: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29766368/systemic-contact-dermatitis
#8
REVIEW
Marcella Aquino, Greg Rosner
Systemic contact dermatitis (SCD) traditionally refers to a skin condition where an individual who is cutaneously sensitized to an allergen will subsequently react to that same allergen or a cross reacting allergen via a different route. It occurs to allergens including metals, medications, and foods. The exact pathophysiology underlying this disease remains unknown, although it appears to be mediated by type 4 hypersensitivity reactions and possibly type 3 hypersensitivity reactions. The p-I concept (pharmacologic interaction with immunoreceptors) hypothesized that drugs are able to bind directly to a T cell receptor without first being presented by MHC (major histocompatibility complex) molecules and without prior metabolism, which would help explain why SCD can be seen on first exposure to medications...
May 15, 2018: Clinical Reviews in Allergy & Immunology
https://www.readbyqxmd.com/read/29765661/testing-the-assumptions-of-the-pyrodiversity-begets-biodiversity-hypothesis-for-termites-in-semi-arid-australia
#9
Hayley Davis, Euan G Ritchie, Sarah Avitabile, Tim Doherty, Dale G Nimmo
Fire shapes the composition and functioning of ecosystems globally. In many regions, fire is actively managed to create diverse patch mosaics of fire-ages under the assumption that a diversity of post-fire-age classes will provide a greater variety of habitats, thereby enabling species with differing habitat requirements to coexist, and enhancing species diversity (the pyrodiversity begets biodiversity hypothesis). However, studies provide mixed support for this hypothesis. Here, using termite communities in a semi-arid region of southeast Australia, we test four key assumptions of the pyrodiversity begets biodiversity hypothesis (i) that fire shapes vegetation structure over sufficient time frames to influence species' occurrence, (ii) that animal species are linked to resources that are themselves shaped by fire and that peak at different times since fire, (iii) that species' probability of occurrence or abundance peaks at varying times since fire and (iv) that providing a diversity of fire-ages increases species diversity at the landscape scale...
April 2018: Royal Society Open Science
https://www.readbyqxmd.com/read/29763517/novel-engineered-tendon-fibrocartilage-bone-composite-with-cyclic-tension-for-rotator-cuff-repair
#10
Qian Liu, Taku Hatta, Jun Qi, Haoyu Liu, Andrew R Thoreson, Peter C Amadio, Steven L Moran, Scott P Steinmann, Anne Gingery, Chunfeng Zhao
Surgical repair of rotator cuff tears presents a significant clinical challenge with high failure rates and inferior functional outcomes. Graft augmentation improves repair outcomes, however currently available grafting materials have limitations. While cell-seeded decellularized tendon slices may facilitate cell infiltration, promote tendon incorporation and preserve original mechanical strength, the unique fibrocartilage zone is yet to be successfully reestablished. In this study, we investigated the biological and mechanical properties of an engineered tendon-fibrocartilage-bone composite (TFBC) with cyclic tension (3% strain, 0...
May 15, 2018: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/29762530/broadband-circularly-polarized-slot-antenna-loaded-by-a-multiple-circular-sector-patch
#11
Son Trinh-Van, Youngoo Yang, Kang-Yoon Lee, Keum Cheol Hwang
In this paper, a microstrip-fed broadband circularly polarized (CP) slot antenna is presented. CP operation can be attained simply by embedding an S-shaped strip. By loading with a multiple-circular-sector patch, which consists of 12 circular-sector patches with identical central angles of 30° and different radii, the 3 dB axial ratio (AR) bandwidth is significantly broadened. To validate the performance of the proposed antenna, an antenna prototype is fabricated and tested. The fabricated antenna is 54 mm × 54 mm × 0...
May 15, 2018: Sensors
https://www.readbyqxmd.com/read/29762209/positive-occluded-patch-test-in-the-face-of-negative-repeat-open-application-test
#12
Ari M Goldminz, Mollie S Wald, Pamela L Scheinman
No abstract text is available yet for this article.
May 2018: Dermatitis
https://www.readbyqxmd.com/read/29762207/occupational-contact-dermatitis-in-the-canadian-aircraft-industry
#13
Camille Loranger, Linda Moreau, Denis Sasseville
BACKGROUND: Aircraft building exposes workers to irritant and sensitizing products. OBJECTIVE: The aim of this article was to study occupational dermatoses among aircraft workers over 25 years. METHODS: The files of aerospace workers referred between 1990 and 2015 were extracted from the database of the McGill University Health Centre contact dermatitis clinic. These were subdivided according to demographics, type of work, patch testing results, and final diagnosis...
May 2018: Dermatitis
https://www.readbyqxmd.com/read/29762206/urushiol-patch-test-using-the-t-r-u-e-test-system
#14
Yesul Kim, Amy Longenecker, Mahmoud A ElSohly, Waseem Gul, Raymond J Hage, Curtis P Hamann, James G Marks
BACKGROUND: Poison ivy, poison oak, and poison sumac are the most common causes of allergic contact dermatitis in North America. Although extensive efforts have been made to develop therapies that prevent and treat allergic contact dermatitis to these plants, there lacks an entirely effective method, besides complete avoidance. Efforts to develop a more effective preventive therapy, such as a vaccine, are ongoing. To accurately evaluate the efficacy of these new therapies, an appropriate assessment tool is needed...
May 2018: Dermatitis
https://www.readbyqxmd.com/read/29761937/-mirror-mirror-on-the-wall-%C3%A2-pediatric-liver-transplantation-in-the-case-of-situs-inversus-totalis-with-a-disrupted-inferior-vena-cava
#15
Colston A Edgerton, Megan Gross, Nagraj Kasi, Winston Hewitt, Sara Edmondson, Vinayak S Rohan, Satish N Nadig
We present the unique case of a 15-month-old male born with biliary atresia and situs inversus totalis and disrupted inferior vena cava who underwent a successful liver transplantation. The patient had previously undergone a failed Kasai procedure and presented with persistent hyperbilirubinemia. The patient was transplanted with a left lateral segment donor having standard arterial anatomy. Technical considerations included identifying completely replaced arterial anatomy in the recipient from the superior mesenteric artery and creating a branch patch between the gastroduodenal artery and HA, anastomosing the donor left hepatic vein to confluences of the donor left, middle, and right hepatic veins, using a "lazy-S" configuration of portal vein anastomosis, and suspending the allograft to the abdominal wall...
May 15, 2018: Pediatric Transplantation
https://www.readbyqxmd.com/read/29761729/safety-assessment-of-magnesium-sulfate-as-used-in-cosmetics
#16
Wilbur Johnson, Wilma F Bergfeld, Donald V Belsito, Ronald A Hill, Curtis D Klaassen, Daniel C Liebler, James G Marks, Ronald C Shank, Thomas J Slaga, Paul W Snyder, F Alan Andersen, Bart Heldreth
The Cosmetic Ingredient Review Expert Panel (Panel) reviewed the safety of magnesium sulfate, which functions as a bulking agent in cosmetic products and is reportedly used at concentrations up to 11% and 25% in leave-on and rinse-off products, respectively. The Panel noted that the history of safe medical use of magnesium sulfate provides further confidence that there are no significant toxicity concerns relating to systemic exposure to this ingredient after cosmetic product application. Furthermore, the extensive clinical experience of the Panel, including the results of numerous patch tests, indicates that magnesium salts do not have the potential to induce sensitization...
May 2018: International Journal of Toxicology
https://www.readbyqxmd.com/read/29761422/computational-pre-surgical-planning-of-arterial-patch-reconstruction-parametric-limits-and-in-vitro-validation
#17
S Samaneh Lashkarinia, Senol Piskin, Tijen A Bozkaya, Ece Salihoglu, Can Yerebakan, Kerem Pekkan
Surgical treatment of congenital heart disease (CHD) involves complex vascular reconstructions utilizing artificial and native surgical materials. A successful surgical reconstruction achieves an optimal hemodynamic profile through the graft in spite of the complex post-operative vessel growth pattern and the altered pressure loading. This paper proposes a new in silico patient-specific pre-surgical planning framework for patch reconstruction and investigates its computational feasibility. The proposed protocol is applied to the patch repair of main pulmonary artery (MPA) stenosis in the Tetralogy of Fallot CHD template...
May 14, 2018: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/29760367/-pharmacological-action-and-clinical-outcome-of-newly-developed-nsaids-patch-loqoa-%C3%A2-tape
#18
Noboru Otsuka, Ikuko Yataba
Topical non-steroidal anti-inflammatory drugs (NSAIDs) patches are indispensable for the treatment of musculoskeletal diseases, while they are considered less effective than oral NSAIDs. LOQOA® tape is a tape-type patch containing esflurbiprofen (SFP) as a major active ingredient with potent cyclooxygenase inhibition and sufficient skin permeability. SFP patch (SFPP) showed higher percutaneous absorption rate, rapid pain relief, and potent anti-inflammatory efficacy comparing with existing NSAIDs patches in rat...
2018: Nihon Yakurigaku Zasshi. Folia Pharmacologica Japonica
https://www.readbyqxmd.com/read/29758584/inhibition-of-sympathetic-sprouting-in-ccd-rats-by-lacosamide
#19
Yuying Wang, Fuquan Huo
BACKGROUND: Early hyperexcitability activity of injured nerve/neuron is critical for developing sympathetic nerve sprouting within dorsal root ganglia (DRG). Since lacosamide (LCM), an anticonvulsant, inhibits Na+ channel. The present study tried to test the potential effect of LCM on inhibiting sympathetic sprouting in vivo. METHODS: LCM (50 mg/kg) was daily injected intraperitoneally into rats subjected to chronic compression DRG (CCD), an animal model of neuropathic pain that exhibits sympathetic nerve sprouting, for the 1st 7 days after injury...
May 14, 2018: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/29756129/deep-multi-task-multi-channel-learning-for-joint-classification-and-regression-of-brain-status
#20
Mingxia Liu, Jun Zhang, Ehsan Adeli, Dinggang Shen
Jointly identifying brain diseases and predicting clinical scores have attracted increasing attention in the domain of computer-aided diagnosis using magnetic resonance imaging (MRI) data, since these two tasks are highly correlated. Although several joint learning models have been developed, most existing methods focus on using human-engineered features extracted from MRI data. Due to the possible heterogeneous property between human-engineered features and subsequent classification/regression models, those methods may lead to sub-optimal learning performance...
September 2017: Medical Image Computing and Computer-assisted Intervention: MICCAI ..
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