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https://www.readbyqxmd.com/read/28544761/composites-of-bacterial-cellulose-and-small-molecule-decorated-gold-nanoparticles-for-treating-gram-negative-bacteria-infected-wounds
#1
Ying Li, Yue Tian, Wenshu Zheng, Yan Feng, Rong Huang, Jingxin Shao, Rongbing Tang, Peng Wang, Yuexiao Jia, Jiangjiang Zhang, Wenfu Zheng, Guang Yang, Xingyu Jiang
Bacterial infections, especially multidrug-resistant bacterial infections, are an increasingly serious problem in the field of wound healing. Herein, bacterial cellulose (BC) decorated by 4,6-diamino-2-pyrimidinethiol (DAPT)-modified gold nanoparticles (Au-DAPT NPs) is presented as a dressing (BC-Au-DAPT nanocomposites) for treating bacterially infected wounds. BC-Au-DAPT nanocomposites have better efficacy (measured in terms of reduced minimum inhibition concentration) than most of the antibiotics (cefazolin/sulfamethoxazole) against Gram-negative bacteria, while maintaining excellent physicochemical properties including water uptake capability, mechanical strain, and biocompatibility...
May 23, 2017: Small
https://www.readbyqxmd.com/read/28544086/effect-of-probiotic-supplementation-and-genotype-on-growth-performance-carcass-traits-hematological-parameters-and-immunity-of-growing-rabbits-under-hot-environmental-conditions
#2
Moataz Fathi, Magdy Abdelsalam, Ibrahim Al-Homidan, Tarek Ebeid, Mohamed El-Zarei, Osama Abou-Emera
The effect of dietary inclusion of probiotics and genetic groups on rabbit performance under hot environmental conditions was studied. A total of 80 rabbits aged 8 weeks were distributed into a completely randomized design in a 4 × 3 factorial arrangement, including four genetic groups and three concentrations of dietary probiotic (0, 200 and 400 g/t feed). The utilized probiotic contained 4 × 10(9)  colony-forming units/g of Bacillus subtilis. Jabali local breed (J), imported Spanish V-line (V) and their crossbreds (¼J¾V and ¾J¼V) were included in the current study...
May 22, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
https://www.readbyqxmd.com/read/28539691/goals-set-by-patients-using-the-icf-model-before-receiving-botulinum-injections-and-their-relation-to-spasticity-distribution
#3
Kevin Choi, Jaclyn Peters, Andrew Tri, Elizabeth Chapman, Ayako Sasaki, Farooq Ismail, Chris Boulias, Shannon Reid, Chetan P Phadke
Purpose: Goal Attainment Scaling (GAS) is used to assess functional gains in response to treatment. Specific characteristics of the functional goals set by individuals receiving botulinum toxin type A (BoNTA) injections for spasticity management are unknown. The primary objectives of this study were to describe the characteristics of the goals set by patients before receiving BoNTA injections using the International Classification of Functioning, Disability and Health (ICF) and to determine whether the pattern of spasticity distribution affected the goals set...
2017: Physiotherapy Canada. Physiothérapie Canada
https://www.readbyqxmd.com/read/28539072/design-and-characterization-of-multifaceted-lyophilized-liposomal-wafers-with-promising-wound-healing-potential
#4
Amelia M Avachat, Pooja J Takudage
Various dressings are available to heal chronic wounds which many times fail to achieve the expected results. To overcome some of their drawbacks, formulation of a novel dressing; lyophilized liposomal wafers having better wound healing potential has been proposed in the present study. The drug incorporated in the formulation is Gatifloxacin (GTX) which is a fourth generation floroquinolone antibiotic having in vitro activity against both Gram-negative and Gram-positive bacteria. The formulation was designed in 3 stages where at first liposomes were prepared, the liposomes were converted to gel using chitosan and lastly this gel was lyophilized to form liposomal wafers...
May 25, 2017: Journal of Liposome Research
https://www.readbyqxmd.com/read/28538029/autologous-biological-dressing-for-recipient-area-in-cellular-grafting-of-vitiligo
#5
Sanjeev Gupta, Ravi Shankar Jangra, Karalikkattil T Ashique, Somesh Gupta
No abstract text is available yet for this article.
May 22, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28537790/lgbtq-women-appearance-negotiations-and-workplace-dress-codes
#6
Kelly L Reddy-Best
The purpose of this study was to explore LGBTQ women's experiences with unwritten or formal dress codes at work. I asked: what are LGBTQ women's experiences in the workplace with appearance management, and what are LGBTQ women's experiences navigating the written and unwritten dress codes in the workplace? To answer the research question, interviews were conducted with 24 self-identifying LGBTQ women. Six key themes emerged from the data. Themes included (1) expressed sexual identity in appearance, (2) unwritten dress codes in work environments did not always allow for expression of sexual identity in appearance, (3) motivations for pressure or desire to conceal expression of sexual identity in appearance at work, (4) negotiations of revealing or concealing sexual identity in appearance in the workplace impacted levels of comfort and confidence (5) verbal and non-verbal negative experiences related to appearance at work, and (6) received compliments about appearance at work...
May 24, 2017: Journal of Homosexuality
https://www.readbyqxmd.com/read/28537645/use-of-an-ovine-collagen-dressing-with-intact-extracellular-matrix-to-improve-wound-closure-times-and-reduce-expenditures-in-a-us-military-veteran-hospital-outpatient-wound-center
#7
Daniel T Ferreras, Sean Craig, Rebecca Malcomb
A novel, comprehensive decision-making and treatment algorithm was established within a US government-run military veteran hospital in an attempt to standardize the process of outpatient wound care and streamline costs. All patients were systematically evaluated and treated using the comprehensive algorithm over a span of nine months. After three months of adherence to the algorithm, the algorithm was modified to include ovine-based collagen extracellular matrix (CECM) dressings as a first-line conventional treatment strategy for all appropriate wounds...
May 24, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28537569/inguinal-pain-syndrome-the-influence-of-intraoperative-local-administration-of-0-5-bupivacaine-on-postoperative-pain-control-following-lichtenstein-hernioplasty-a-prospective-case-control-study
#8
Bartosz Cybułka
With current technological advancement and availability of synthetic materials used in inguinal hernia repair, a recurrence after first intervention is not a common and important adverse event. On the other hand, however, some patients complain about chronic pain of the operated site after surgeries using a polypropylene mesh. Many patients are constrained to a prolonged use of analgesics and increased frequency of control visits, which may eventually result in loss of trust in the operator. Every surgical intervention is associated with the risk of immediate or delayed complications...
April 30, 2017: Polski Przeglad Chirurgiczny
https://www.readbyqxmd.com/read/28534175/-aseptic-loosening-of-total-ankle-replacement-two-stage-revision-with-bone-augmentation-of-osseous-defects-and-secondary-prosthesis-implantation
#9
A Barg, M Wiewiorski, V Valderrabano
OBJECTIVE: To remove loosened ankle prosthesis components, perform osseous defect augmentation, and reimplant definitive prosthesis components to preserve ankle range of motion. INDICATIONS: Aseptic loosening of the tibial and/or talar ankle prosthesis components with substantial bone defect. CONTRAINDICATIONS: General surgical/anesthesiological risks, infections, critical soft tissue conditions, nonmanageable hindfoot instability, neurovascular impairment of the lower extremity, neuroarthropathy, substantial nonreconstructable osseous defects with or without cysts on the tibial and/or talar side, noncompliance, primary total ankle replacement (TAR) using intramedullary fixation (stem fixation), severely reduced bone quality, insulin-dependent diabetes mellitus, smoking, unrealistic patients' expectations, high activity in sports...
May 22, 2017: Operative Orthopädie und Traumatologie
https://www.readbyqxmd.com/read/28533933/negative-wound-pressure-therapy-is-safe-and-useful-in-pediatric-burn-patients
#10
Yanhan Ren, Philip Chang, Robert L Sheridan
INTRODUCTION: Negative Pressure Wound Therapy (NPWT) has proven to be a powerful tool in facilitating healing of difficult wounds of a variety of etiologies. The pediatric experience with NPWT has been limited due to concerns about vascular compression and pain associated with treatment. METHOD: A retrospective review was performed to evaluate the therapeutic effect of NPWT on children with difficult wounds due to burns or soft-tissue trauma. NPWT was instituted in the operating room under general anesthesia using a commercially available system...
2017: International Journal of Burns and Trauma
https://www.readbyqxmd.com/read/28532663/recent-developments-in-drug-eluting-devices-with-tailored-interfacial-properties
#11
REVIEW
Eva Sanchez-Rexach, Emilio Meaurio, Jose-Ramon Sarasua
Drug eluting devices have greatly evolved during past years to become fundamental products of great marketing importance in the biomedical field. There is currently a large diversity of highly specialized devices for specific applications, making the development of these devices an exciting field of research. The replacement of the former bare metal devices by devices loaded with drugs allowed the sustained and controlled release of drugs, to achieve the desired local therapeutic concentration of drug. The newer devices have been "engineered" with surfaces containing micro- and nanoscale features in a well-controlled manner, that have shown to significantly affect cellular and subcellular function of various biological systems...
May 4, 2017: Advances in Colloid and Interface Science
https://www.readbyqxmd.com/read/28532087/the-repairing-of-full-thickness-skin-deficiency-and-its-biological-mechanism-using-decellularized-human-amniotic-membrane-as-the-wound-dressing
#12
Mengsheng Song, Weiqing Wang, Qihua Ye, Shizhong Bu, Zhisen Shen, Yabin Zhu
Human amniotic membrane (HAM) was a biocompatible scaffold with advantages of anti-inflammatory, low antigen, feasibility, tolerance and low cost. In our previous work, HAM was treated to be decellularized using surfactant, lipase and DNAase methods and the efficacy as an implantable biological mesh was verified after decellularization treatment. In this work, we used the previous protocol to decellularize the fresh HAM, and applied it to repair full-thickness skin defects with Sprague-Dawley rats as the test animals...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532074/highly-effective-cu-zn-carbon-micro-nanofiber-polymer-nanocomposite-based-wound-dressing-biomaterial-against-the-p-aeruginosa-multi-and-extensively-drug-resistant-strains
#13
Mohammad Ashfaq, Nishith Verma, Suphiya Khan
Pseudomonas aeruginosa (P. aeruginosa) is the most prevalent bacteria in the infections caused by burn, surgery, and traumatic injuries. Emergence of the P. aeruginosa bacterial resistance against various clinical drugs for wound treatment is the major concern nowadays. The present study describes the synthesis of the polyvinyl alcohol (PVA) and cellulose acetate phthalate (CAP) polymeric composite film (~0.2mm thickness) reinforced with the Cu/Zn bimetal-dispersed activated carbon micro/nanofiber (ACF/CNF), as a wound dressing material...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532071/in-vitro-antibacterial-and-cytotoxic-activities-of-plasma-modified-polyethylene-terephthalate-nonwoven-dressing-with-aqueous-extract-of-rhizome-atractylodes-macrocephala
#14
Yi-Ting Shu, Kuo-Ting Kao, Ching-Sung Weng
In this study, a natural and non-cytotoxic antibacterial dressing containing aqueous extract of Rhizome Atractylodes macrocephala (RAM), which has been widely used in traditional herbal medicine and documented with antibacterial activities in literatures, was developed by aid of the extraction technique, nonwoven substrates and plasma-induced grafting technology. The effectiveness of these herbal antibacterial dressings with different treatment were investigated through the assays of grafting yield, SEM, FTIR, antibacterial activities and cytotoxicity...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532061/wound-healing-effect-of-bioactive-ion-released-from-mg-smectite
#15
Yu Sasaki, Gulsan Ara Sathi, Osamu Yamamoto
Bioactive ions like Mg(2+) and Si(4+) have been known as promotion factors of tissue regeneration. In the present work, Mg-smectite, consisting of Mg(2+) and Si(4+) ions, was synthesized by a solution process, and evaluated for the efficiency of the powder on wound healing in rats. White precipitates were obtained by mixing a magnesium chloride hexahydrate solution and a sodium silicate hexahydrate solution at room temperature. The precipitates mixed with a NaOH aqueous solution were subjected to hydrothermal reaction, and finally crystalline Mg-smectite powder was obtained...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532035/honey-pva-hybrid-wound-dressings-with-controlled-release-of-antibiotics-structural-physico-mechanical-and-in-vitro-biomedical-studies
#16
Javad Tavakoli, Youhong Tang
Hydrogel/honey hybrids manifest an attractive design with an exclusive therapeutic property that promotes wound healing process. The greater the concentration of honey within the formulation, the better the biomedical properties that will be achieved. However, an increase in the percentage of honey can negatively affect the physico-chemical and mechanical properties of hybrid hydrogels. The need exists, therefore, to prepare wound dressings that contain high honey density with optimal biomedical, mechanical and physicochemical properties...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532030/tetracycline-hydrochloride-loaded-electrospun-nanofibers-mats-based-on-pva-and-chitosan-for-wound-dressing
#17
Alex Carvalho Alavarse, Fernanda Waitman de Oliveira Silva, Jandir Telleria Colque, Viviam Moura da Silva, Tatiane Prieto, Everaldo Carlos Venancio, Jean-Jacques Bonvent
Fibrous mats built from biopolymer have been extensively explored for tissue engineering due mainly to their mimic structure to the extracellular matrix. The incorporation of drug in such scaffolds represents a growing interest for control drug delivery system in order to promote the tissue repair. In the present work, we present an experimental investigation of morphological, thermal, mechanical, drug release, antibacterial and cytotoxicity properties of electrospun PVA/Chitosan and PVA/Chitosan/Tetracycline hydrochloride (TCH) mats for wound dressing...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532029/surfactin-loaded-polyvinyl-alcohol-pva-nanofibers-alters-adhesion-of-listeria-monocytogenes-to-polystyrene
#18
J J Ahire, D D Robertson, A J van Reenen, L M T Dicks
Surfactin-loaded polyvinyl alcohol (PVA) nanofibers were spun using gravity electrospinning. Scanning electron microscopy (SEM) images showed that nanofibers spun with surfactin are free from bead formation and uniform in diameter. The average nanofiber diameters were decreased (273±39nm, 259±39nm and 217±33nm) with increasing levels of surfactin (0.5, 1.0 and 1.5%, w/v) into PVA (10%, w/v). The 10% (w/v) PVA had average fiber diameter of 303±33nm. Atomic force microscopy (AFM) analysis showed that fibers spun with surfactin are not smooth as PVA fibers...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28532022/a-novel-grapheme-oxide-modified-collagen-chitosan-bio-film-for-controlled-growth-factor-release-in-wound-healing-applications
#19
Ting Liu, Weihua Dan, Nianhua Dan, Xinhua Liu, Xuexu Liu, Xu Peng
Collagen-chitosan composite film modified with grapheme oxide (GO) and 1-(3-Dimethylaminopropyl)-3-ethylcarbodiimide hydrochloride (EDC), termed CC-G-E film, was loaded with basic fibroblast growth factor (bFGF) as the development of an efficacious wound healing device. In this study we report a novel drug delivery system that prevents the initial burst release and loss of bioactivity of drugs in vitro and in vivo applications. The results showed that CC-G-E film possessed improved thermal stability and a higher rate of crosslinking with increased mechanical properties when the dosage of GO was between 0...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531982/study-of-the-keratin-based-therapeutic-dermal-patches-for-the-delivery-of-bioactive-molecules-for-wound-treatment
#20
Kush Kumar Nayak, Pratima Gupta
In the present study, dressing materials were fabricated in the form of dermal patches. The keratin based biocompatible materials, namely Keratin/Alginate, Keratin/Agar, and Keratin/Gellan were developed as therapeutic dermal patches. The patches were coated with green synthesized silver nanoparticles to prevent the microbial infection and were found to be antimicrobial against pathogens. Papain was used in the patches to acquire the enzymatic cell debridement and its activity was measured by reduction rate of benzoyl-l-arginine ethyl ester...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
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