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https://www.readbyqxmd.com/read/29777958/sssupramolecular-poly-acrylic-acid-f127-hydrogel-with-hydration-controlled-nitric-oxide-release-for-enhancing-wound-healing
#1
Mathilde Champeau, Valéria Póvoa, Lucas Militão, Flávia Cabrini, Guilherme F Picheth, Florian Meneau, Carlos P Jara, Eliana P de Araujo, Marcelo G de Oliveira
Topical nitric oxide (NO) delivery has been shown to accelerate wound healing. However, delivering NO to wounds at appropriate rates and doses requires new biomaterial-based strategies. Here, we describe the development of supramolecular interpolymer complex hydrogels comprising PEO-PPO-PEO (F127) micelles embedded in a poly(acrylic acid) (PAA) matrix, with S-nitrosoglutathione (GSNO) molecules dissolved in the hydrophilic domain. We show that PAA:F127/GSNO hydrogels start releasing NO upon hydration at rates controlled by their rates of water absorption...
May 16, 2018: Acta Biomaterialia
https://www.readbyqxmd.com/read/29775370/phonon-dispersion-and-the-competition-between-pairing-and-charge-order
#2
N C Costa, T Blommel, W-T Chiu, G Batrouni, R T Scalettar
The Holstein model describes the interaction between fermions and a collection of local (dispersionless) phonon modes. In the dilute limit, the phonon degrees of freedom dress the fermions, giving rise to polaron and bipolaron formation. At higher densities, the phonons mediate collective superconducting (SC) and charge-density wave (CDW) phases. Quantum Monte Carlo (QMC) simulations have considered both these limits but have not yet focused on the physics of more general phonon spectra. Here we report QMC studies of the role of phonon dispersion on SC and CDW order in such models...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29775327/rydberg-dressed-magneto-optical-trap
#3
A D Bounds, N C Jackson, R K Hanley, R Faoro, E M Bridge, P Huillery, M P A Jones
We propose and demonstrate the laser cooling and trapping of Rydberg-dressed Sr atoms. By off-resonantly coupling the excited state of a narrow (7 kHz) cooling transition to a high-lying Rydberg state, we transfer Rydberg properties such as enhanced electric polarizability to a stable magneto-optical trap operating at <1  μK. Simulations show that it is possible to reach a regime where the long-range interaction between Rydberg-dressed atoms becomes comparable to the kinetic energy, opening a route to combining laser cooling with tunable long-range interactions...
May 4, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29774553/alkyl-glucosides-newly-identified-allergens-in-foam-wound-dressings
#4
Stefan Kerre, Tine Strobbe, Tania Naessens, Mart Theunis, Kenn Foubert, Olivier Aerts
No abstract text is available yet for this article.
May 17, 2018: Contact Dermatitis
https://www.readbyqxmd.com/read/29773374/electrospinning-and-wound-healing-activity-of-%C3%AE-chitin-extracted-from-cuttlefish-bone
#5
Hyeong-Seop Jung, Min Hee Kim, Ji Youn Shin, Se Ra Park, Ju-Young Jung, Won Ho Park
A nanofibrous β-chitin web was fabricated via electrospinning for use as a novel wound dressing material. β-chitin was extracted from cuttlefish bone using deproteinization and demineralization. First, cuttlefish bone was alkali-treated to remove the proteins and was then treated with the acid for demineralization. The extracted β-chitin was dissolved in formic acid as solvent to evaluate its electrospinnability, and the electrospinnability increased remarkably when β-chitin was blended with poly(ethylene oxide) (PEO) than without...
August 1, 2018: Carbohydrate Polymers
https://www.readbyqxmd.com/read/29772983/infiltration-and-extravasation-in-pediatric-patients-a-prevalence-study-in-a-children-s-hospital
#6
Gülçin Özalp Gerçeker, Ayşe Kahraman, Figen Yardimci, Elif Bilsin, Şeyda Binay, Hamide Nur Çevik Özdemir, Atiye Karakul, Dilek Zengin, Seda Ardahan Sevgili, Merve Gümüş, Zümrüt Başbakkal, Selma Akpınar
PURPOSE: The aim of this study is to determine the prevalence of infiltration and extravasation among children staying in a children's hospital and the interventions carried out when infiltration or extravasation occurred. METHODS: A prospective and descriptive research design was used in the study, conducted between September 2015 and February 2016, and determined the prevalence of infiltration and extravasation and their characteristics. The study sample consisted of 297 peripheral catheters in 173 pediatric patients...
May 2018: Journal of Vascular Access
https://www.readbyqxmd.com/read/29772744/activities-of-daily-living-and-determinant-factors-among-older-adult-subjects-with-lower-body-fracture-after-discharge-from-hospital-a-prospective-study
#7
Nurul Izzah Ibrahim, Mohd Sharkawi Ahmad, Mohamed S Zulfarina, Sharifah Nurul Aqilah Sayed Mohd Zaris, Isa Naina Mohamed, Norazlina Mohamed, Sabarul Afian Mokhtar, Ahmad Nazrun Shuid
Fracture is a type of musculoskeletal injury that contributes to an inability to perform daily activities. The objective of this study was to evaluate activities of daily living (ADL) of older adult patients with lower body fracture and to determine factors influencing ADL. Patient's ADL was assessed at pre-fracture, ward admission and post-discharge phases using the Katz ADL questionnaire. There were 129 subjects at pre-fracture and ward phases and 89 subjects at discharge phase. There were four independent variables; age, gender, type of fracture and ability to walk before fracture...
May 16, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29772023/prepartum-supplementation-of-conjugated-linoleic-acids-cla-increased-milk-energy-output-and-decreased-serum-fatty-acids-and-%C3%AE-hydroxybutyrate-in-early-lactation-dairy-cows
#8
Rafael Caputo Oliveira, Ryan S Pralle, Lucas C de Resende, Carlos Henrique P C Nova, Valentina Caprarulo, Joshua A Jendza, Arnulf Troescher, Heather M White
Prepartum supplementation with conjugated linoleic acid (CLA) may influence lipolysis and hyperketonemia in dairy cows. The objective of this study was to examine the effect of prepartum CLA supplementation on lactation performance and serum fatty acids (FA) and β-hydroxybutyrate (BHB) in early lactation dairy cows, and secondarily on reproductive performance. Multiparous cows were enrolled in the study at 18 days prior to expected calving date, and randomly assigned 100 g/day of Lutrell Pure (BASF, Ludwigshafen, Germany; 75% FA), providing 10 g/day of each CLA isomer (trans-10 cis-12 and cis-9 trans-11 CLA) or equivalent amount of rumen inert fatty acids as control (78 g/day of Energy Booster 100; Milk Specialties Global, Eden Prairie, MN)...
2018: PloS One
https://www.readbyqxmd.com/read/29769770/clinical-and-histological-evaluation-on-application-of-platelet-concentrates-on-depigmented-gingival-epithelium
#9
Koel Debnath, Anirban Chatterjee
Background: The platelet concentrate is a windfall in the field of regenerative therapy in periodontology. It accelerates wound healing by excellent neovascularization and promoting fast cicatricle tissue remodeling. Aim: This study aims to evaluate clinically and histologically accelerated effect of platelet-rich fibrin (PRF) membrane and PRF matrix (PRFM) following depigmentation procedure. Materials and Methods: Eleven individuals were divided into three groups after depigmentation procedure...
March 2018: Journal of Indian Society of Periodontology
https://www.readbyqxmd.com/read/29768078/wet-wrap-therapy-with-halometasone-cream-for-severe-adult-atopic-dermatitis
#10
Wei Xu, Yan Li, Zeyu Chen, Teng Liu, Shan Wang, Linfeng Li
BACKGROUND: Currently there is no cure for severe atopic dermatitis (AD). Wet-wrap therapy (WWT) has also been used to treat pediatric AD and shown a satisfactory effectiveness, but clinical evidence supporting the use of WWT on severe adult AD is still insufficient. METHODS: Twelve patients (8 men and 4 women) with severe AD (SCORing Atopic Dermatitis [SCORAD] score≥50) treated between January 2015 and September 2017 in our hospital were included. The patients underwent WWT (daily dose: 15g halometasone cream+100g Vaseline ointment) twice daily for 2 hours/session for 7 days...
May 16, 2018: Postgraduate Medicine
https://www.readbyqxmd.com/read/29767229/usability-of-world-health-organization-disability-assessment-schedule-in-chronic-traumatic-brain-injury
#11
Sinikka Tarvonen-Schröder, Olli Tenovuo, Anne Kaljonen, Katri Laimi
OBJECTIVES: To investigate functioning measured with the 12-item World Health Organization Disability Assessment Schedule (WHODAS 2.0) in patients with mild, moderate and severe traumatic brain injury, and to compare patients' experiences with assessments made by their significant others and by consultant neurologists. METHODS: A total of 112 consecutive patients with traumatic brain injury (29 mild, 43 moderate, 40 severe) and their significant others completed a 12-item WHODAS 2...
May 16, 2018: Journal of Rehabilitation Medicine
https://www.readbyqxmd.com/read/29764691/overview-of-silk-fibroin-use-in-wound-dressings
#12
REVIEW
Mehdi Farokhi, Fatemeh Mottaghitalab, Yousef Fatahi, Ali Khademhosseini, David L Kaplan
Recently, biomimetic wound dressings were introduced as potential replacements for treating skin injuries. Although there are some clinically available skin replacements, the range of wound types and locations necessitates a broader range of options for the clinic. Natural polymeric-based dressings are of central interest in this area due to their outstanding biocompatibility, biodegradability, low toxicity, and non-allergenic nature. Among them, silk fibroin (SF) has exceptional characteristics as a wound dressing...
May 12, 2018: Trends in Biotechnology
https://www.readbyqxmd.com/read/29762770/carcass-and-meat-quality-characterization-of-indigenous-and-improved-variety-of-chicken-genotypes
#13
Suresh K Devatkal, Mangalathu R Vishnuraj, Vivek V Kulkarni, Talapaneni Kotaiah
A study was conducted to examine four genotypes of chicken for their carcass and meat quality characteristics. From each genotype, 20 birds were slaughtered at their respective age of maturity. Breast and thigh muscles were evaluated for meat quality characteristics. Transport loss and carcass weight were highest in the white commercial broiler (WBR) and lowest in Aseel (ASL) and Indbro Aseel (ASR). Dressing percentage ranged between 66.41 and 72.56 and was not significantly different among genotypes. The yield of various cut-up parts for different genotypic birds was significantly different (P < 0...
May 14, 2018: Poultry Science
https://www.readbyqxmd.com/read/29762309/effectiveness-of-extracellular-matrix-dressings-and-topical-agents-in-the-treatment-of-leg-ulcers-a-systematic-review-protocol
#14
Francislene de Fátima Cordeiro Petz, Marineli Joaquim Meier, Hellen Roehrs, Franciele Soares Pott
The objective of this review is to synthesize the best available evidence on the effectiveness of the application of extracellular matrix products as dressings or in topical form as treatment for venous, arterial and mixed leg ulcers, compared to compression therapy alone, any type of dressings and topical agents, or placebos in adults over 18 years in any care setting.
May 2018: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/29758310/chemical-synthesis-and-characterization-of-chitosan-silver-nanocomposites-films-and-their-potential-antibacterial-activity
#15
Aamna Shah, Izhar Hussain, Ghulam Murtaza
This study provides the optimum preparation parameters for functional chitosan silver nanocomposite (CSN) films with promising antibacterial efficacy though prepared with very low silver nitrate (AgNO3 ) concentration. Chitosan nano‑silver composites were fabricated by In-situ chemical method utilizing the reducing ability of sodium borohydride (NaBH4 ) and afterward casted into films. Utilization of response surface methodology, NCSS, and SigmaPlot for the optimization of CSN and their predicted antibacterial efficacy assessment of the selected bacterial strains (standard and clinical) was the essential part of the study...
May 11, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29757942/biomedical-potential-of-ultrafine-ag-nanoparticles-coated-on-poly-gamma-glutamic-acid-hydrogel-with-special-reference-to-wound-healing
#16
Yu Wang, Chunyan Dou, Guidong He, Litong Ban, Liang Huang, Zheng Li, Jixian Gong, Jianfei Zhang, Peng Yu
In wound care management, the prevention of wound infection and the retention of an appropriate level of moisture are two major challenges. Therefore, designing an excellent antibacterial hydrogel with a suitable water-adsorbing capacity is very important to improve the development of wound dressings. In this paper, a novel silver nanoparticles/poly (gamma-glutamic acid) (&gamma;-PGA) composite dressing was prepared for biomedical applications. The promoted wound-healing ability of the hydrogels were systematically evaluated with the aim of attaining a novel and effective wound dressing...
May 14, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29757626/detection-of-redox-state-evolution-during-wound-healing-process-based-on-a-redox-sensitive-wound-dressing
#17
Jie Sun, Shuyan Han, Ying Wang, Guanyu Zhao, Weiping Qian, Jian Dong
To detect the redox state evolution during wound healing process, a redox-sensitive surface-enhanced Raman scattering (SERS) probe was constructed by attaching anthraquinone as a redox-sensitive molecule onto gold nanoshells, and the redox-sensitive SERS probes were loaded on one surface of a chitosan membrane as a redox-sensitive wound dressing. The redox-sensitive wound dressing covered an acute wound as both a wound dressing and a redox state sensor. The spatiotemporal evolution of the redox states of the healing wound was obtained by collecting the SERS spectra of the SERS probes in situ and noninvasively...
May 14, 2018: Analytical Chemistry
https://www.readbyqxmd.com/read/29756908/orbital-state-manipulation-of-a-diamond-nitrogen-vacancy-center-using-a-mechanical-resonator
#18
H Y Chen, E R MacQuarrie, G D Fuchs
We study the resonant optical transitions of a single nitrogen-vacancy (NV) center that is coherently dressed by a strong mechanical drive. Using a gigahertz-frequency diamond mechanical resonator that is strain coupled to a NV center's orbital states, we demonstrate coherent Raman sidebands out to the ninth order and orbital-phonon interactions that mix the two excited-state orbital branches. These interactions are spectroscopically revealed through a multiphonon Rabi splitting of the orbital branches which scales as a function of resonator driving amplitude and is successfully reproduced in a quantum model...
April 20, 2018: Physical Review Letters
https://www.readbyqxmd.com/read/29756718/-drug-reaction-with-eosinophilia-and-systemic-symptoms-due-to-carbamazepine-pediatric-case
#19
Rocío Del P Pereira-Ospina, Ana M Bejarano-Quintero, José M Suescún-Vargas, Javier Y Pinzón-Salamanca
Severe skin reactions include Stevens-Johnson Syndrome, toxic epidermal necrolysis and Drug reaction with Eosinophilia and Systemic Symptoms (DRESS) syndrome, which are uncommon in the pediatric population (incidence 1/1000- 10 000 children), but they have bad prognosis. Drug-sensitive Syndrome with eosinophilia and systemic symptoms consists in rash, hematological abnormalities, lymphadenopathy and organ involvement. We report the case of a 12-year-old male patient who developed this pathology after initiating anticonvulsant therapy with carbamazepine...
June 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29755977/wearable-technology-for-chronic-wound-monitoring-current-dressings-advancements-and-future-prospects
#20
REVIEW
Matthew S Brown, Brandon Ashley, Ahyeon Koh
Chronic non-healing wounds challenge tissue regeneration and impair infection regulation for patients afflicted with this condition. Next generation wound care technology capable of in situ physiological surveillance which can diagnose wound parameters, treat various chronic wound symptoms, and reduce infection at the wound noninvasively with the use of a closed loop therapeutic system would provide patients with an improved standard of care and an accelerated wound repair mechanism. The indicating biomarkers specific to chronic wounds include blood pressure, temperature, oxygen, pH, lactate, glucose, interleukin-6 (IL-6), and infection status...
2018: Frontiers in Bioengineering and Biotechnology
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