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Wound dressings

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https://www.readbyqxmd.com/read/29050309/fibronectin-in-cell-adhesion-and-migration-via-n-glycosylation
#1
Cheng-Te Hsiao, Hung-Wei Cheng, Chi-Ming Huang, Hao-Ru Li, Meng-Hsin Ou, Jie-Rong Huang, Kay-Hooi Khoo, Helen Wenshin Yu, Yin-Quan Chen, Yang-Kao Wang, Arthur Chiou, Jean-Cheng Kuo
Directed cell migration is an important step in effective wound healing and requires the dynamic control of the formation of cell-extracellular matrix interactions. Plasma fibronectin is an extracellular matrix glycoprotein present in blood plasma that plays crucial roles in modulating cellular adhesion and migration and thereby helping to mediate all steps of wound healing. In order to seek safe sources of plasma fibronectin for its practical use in wound dressing, we isolated fibronectin from human (homo) and porcine plasma and demonstrated that both have a similar ability as a suitable substrate for the stimulation of cell adhesion and for directing cell migration...
September 19, 2017: Oncotarget
https://www.readbyqxmd.com/read/29049265/medical-grade-honey-dressing-use-in-developing-countries
#2
George Frederick Winter
Compared with other medical honeys, SurgihoneyRO (H&R Healthcare Ltd, Southmoor, Abingdon, United Kingdom), a bioengineered medical-grade honey, delivers low concentrations of reactive oxygen to wounds over a sustained period. This article describes how one provider, Dr Jill Brooks, has successfully used this new antimicrobial dressing in Africa and examines the potential positive impact this dressing could have on wound care in developing countries.
November 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29049260/a-quantitative-analysis-of-microcirculation-in-skin-defects-covered-with-topical-wound-dressings-or-a-newly-developed-collagen-matrix
#3
Manuel Held, Fabian Medved, Wiebke Petersen, Dascha Sophie Tolzmann, Afshin Rahmanian-Schwarz, Hans-Eberhard Schaller, Jens Rothenberger
OBJECTIVE: Innovative skin substitutes and temporary wound dressings are frequently used in the treatment of superficial and partial-thickness wounds. The aim of this study was to compare 2 commonly used temporary skin dressings with a newly developed collagen matrix to determine changes in microcirculation as measured by blood flow, hemoglobin oxygenation, and relative hemoglobin values during healing of partial-thickness skin defects. METHODS: This animal study involved 28 adult male Lewis rats...
November 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29049055/oxidized-regenerated-cellulose-collagen-dressings-review-of-evidence-and-recommendations
#4
Stephanie Wu, Andrew J Applewhite, Jeffrey Niezgoda, Robert Snyder, Jayesh Shah, Breda Cullen, Gregory Schultz, Janis Harrison, Rosemary Hill, Melania Howell, Marcus Speyrer, Howard Utra, Jean de Leon, Wayne Lee, Terry Treadwell
OBJECTIVE: Healthcare systems are being challenged to manage increasing numbers of nonhealing wounds. Wound dressings are one of the first lines of defense in wound management, and numerous options exist. The oxidized regenerated cellulose (ORC)/collagen dressing may offer healthcare providers a robust and cost-effective tool for use in a variety of wounds. DESIGN: A multidisciplinary panel meeting was convened to discuss the use of ORC/collagen dressings in wound care and provide practice recommendations...
November 2017: Advances in Skin & Wound Care
https://www.readbyqxmd.com/read/29048241/nanofibrous-electrospun-hdecm-based-hybrid-scaffold-as-wound-dressing-for-reducing-scarring
#5
Tae Hee Kim, Youngmee Jung, Soo Hyun Kim
Produced via electrospinning, poly(l-lactide-co-caprolactone) (PLCL) membranes, which have a porous structure and are biodegradable, are of interest in various medical fields. The porous-structured electrospun membrane is particularly interesting because of several favorable properties: it exudes fluid from the wound, does not build up under the wound covering, and does not cause wound desiccation. Moreover, extracellular matrix (ECM)-based structures derived by tissue decellularization have application as engineered tissue scaffolds and as supports for cellular regeneration...
October 19, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29047451/functionalization-of-bacterial-cellulose-wound-dressings-with-the-antimicrobial-peptide-%C3%AE%C2%B5-poly-l-lysine
#6
Marian Fürsatz, Mårten Skog, Petter Sivlér, Eleonor Palm, Christopher Aronsson, Andreas Skallberg, Grzegorz Greczynski, Hazem Khalaf, Torbjörn Bengtsson, Daniel Aili
Wound dressings based on bacterial cellulose (BC) can form a soft and conformable protective layer that can stimulate wound healing while preventing bacteria from entering the wound. Bacteria already present in the wound can, however, thrive in the moist environment created by the BC dressing which can aggravate the healing process. Possibilities to render the BC antimicrobial without affecting the beneficial structural and mechanical properties of the material would hence be highly attractive. Here we present methods for functionalization of BC with ε-Poly-L-Lysine (ε-PLL), a non-toxic biopolymer with broad-spectrum antimicrobial activity...
October 19, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/29043967/dual-head-screw-hip-nailing-for-trochanteric-fractures
#7
Andreas F Mavrogenis, Vasilios G Igoumenou, Panayiotis D Megaloikonomos, George N Panagopoulos, Ioannis P Galanopoulos, Christos Th Vottis, Eirinaios Karamanis, Panayiotis Koulouvaris, Panayiotis J Papagelopoulos
INTRODUCTION: There are limited information and inconclusive results for dual head screw intramedullary hip nails for trochanteric fractures. Therefore, we performed a prospective study to evaluate the healing of fractures, and survival, function, and complications of patients operated with this implant. METHODS: We prospectively studied 79 patients (61 women and 18 men; mean age: 84.7 years; range: 65-96 years) with a low-energy trochanteric fracture, treated with a dual head screw intramedullary hip nail from 2013 to 2016...
2017: SICOT-J
https://www.readbyqxmd.com/read/29040801/molecular-level-insight-into-the-interaction-of-phospholipid-bilayers-with-cellulose
#8
Andrei Yu Kostritskii, Dmitry Alekseevich Tolmachev, Natalia Viacheslavovna Lukasheva, Andrey A Gurtovenko
A molecular-level insight into the interactions of phospholipid molecules with cellulose is crucial for the development of novel cellulose-based materials for wound dressing. Here we employ the state-of-the-art computer simulations to unlock for a first time the molecular mechanisms behind such interactions. To this end, we performed a series of atomic-scale molecular dynamics simulations of phospholipid bilayers on a crystalline cellulose support at various hydration levels of the bilayer leaflets next to the cellulose surface...
October 17, 2017: Langmuir: the ACS Journal of Surfaces and Colloids
https://www.readbyqxmd.com/read/29038623/wound-healing-concepts-in-clinical-practice-of-omfs
#9
REVIEW
Shruti Chhabra, Naveen Chhabra, Avneet Kaur, Niti Gupta
BACKGROUND: Wound healing is a complex and dynamic process and a thorough knowledge of the basics of physiology of wound healing is a must to implement principles of chronic wound care. Understanding wound healing at multiple levels-biochemical, physiologic, cellular and molecular provides the surgeon with a framework for basing clinical decisions aimed at optimizing the healing response. OBJECTIVE: This review article describes the classification of wounds and aims to highlight the fundamentals of wound repair, enumerating the dressings used commonly and also, the newer concepts of wound healing...
December 2017: Journal of Maxillofacial and Oral Surgery
https://www.readbyqxmd.com/read/29038019/establishment-of-a-cell-based-wound-healing-assay-for-bio-relevant-testing-of-wound-therapeutics
#10
Viktoria Planz, Jing Wang, Maike Windbergs
INTRODUCTION: Predictive in vitro testing of novel wound therapeutics requires adequate cell-based bio-assays. Such assays represent an integral part during preclinical development as pre-step before entering in vivo studies. Simple "scratch tests" based on defected skin cell monolayers exist, however these can solely be used for testing liquids, as cell monolayer destruction and excessive hydration limit their applicability for (semi-)solid systems like wound dressings. In this context, a cell-based wound healing assay is introduced for rapid and predictive testing of wound therapeutics independent of their physical state in a bio-relevant environment...
October 13, 2017: Journal of Pharmacological and Toxicological Methods
https://www.readbyqxmd.com/read/29037874/preparation-and-optimization-of-chitosan-gelatin-films-for-sustained-delivery-of-lupeol-for-wound-healing
#11
Satish Patel, Shikha Srivastava, Manju Rawat Singh, Deependra Singh
Lupeol entrapped chitosan-gelatin hydrogel (LCGH) films were prepared by solution cast method by blending chitosan and gelatin solution using glycerol as plasticizer, followed by crosslinking with glutaraldehyde. LCGH films were characterized by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), differential scanning calorimetry (DSC), equilibrium water content (EWC), Water vapor transmission rate (WVTR) and in vitro release studies. SEM confirmed presence of the uniform porous network of both blank and LCGH films...
October 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29037870/the-antibacterial-and-anti-inflammatory-investigation-of-lawsonia-inermis-gelatin-starch-nano-fibrous-dressing-in-burn-wound
#12
Zhina Hadisi, Jhamak Nourmohammadi, Seyed Mahdi Nassiri
The aim of this study was to develop a new bioactive gelatin-oxidized starch nanofibers containing Lawsonia Inermis (henna) for treating second-degree burn wounds. Continuous, smooth, and bead-free fibers were obtained when the gelatin-starch ratio was 70/30.
Additionally, the fiber dimeter was reduced with increasing henna content. The successful loading of henna in the gelatin-oxidized starch nanofibers was approved using Fourier transform infrared spectroscopy and Differential scanning calorimetry. Moreover, the addition of henna to the gelatin-oxidized starch nanomatrix enhanced fibroblasts attachment, proliferation, collagen secretion, and antibacterial activity...
October 13, 2017: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29034271/effect-of-propolis-extract-in-combination-with-eugenol-free-dressing-coe-paktm-on-pain-and-wound-healing-after-crown-lengthening-a-randomized-clinical-trial
#13
Mitra Askari, Anna Saffarpour, Jalal Purhashemi, Atena Beyki
STATEMENT OF THE PROBLEM: Researchers have long been in search of products to enhance healing and patient comfort postoperatively. PURPOSE: This study aimed to assess the efficacy of propolis extract in combination with Coe-Pak(TM) dressing for pain relief and wound healing after crown lengthening surgery. MATERIALS AND METHOD: This randomized clinical trial was performed on 36 patients who were randomly divided into two groups of Coe-Pak(TM) dressing with (trial group) and without (control group) propolis extract...
September 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/29032975/comparison-of-non-surgical-methods-for-the-treatment-of-deep-partial-thickness-skin-burns-of-the-hand
#14
Ernest Zacharevskij, Gytis Baranauskas, Karolis Varkalys, Rytis Rimdeika, Darius Kubilius
This paper describes a randomized, controlled, parallel-group, single-center clinical trial designed to compare non surgical treatment methods of deep partial thickness skin burns of the hand. All patients were scanned with the Laser Doppler Imaging device to determine the depth of the burn wound. Viable keratinocytes sites were determined according to the established Perfusion Units (PU) measurement system. The trial enrolled 87 patients with hand burn wounds in the section of 260-600PU. Hand burn patients were divided into the following four groups: treated with hydrocolloid dressings; treated with mechanical debridement of monofilament polyester fibers pad and then applying silver sulfadiazine; treated with gauze dressings containing enzymatic collagenase preparation...
October 9, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29029855/improving-mortality-outcomes-of-stevens-johnson-syndrome-toxic-epidermal-necrolysis-a-regional-burns-centre-experience
#15
M Nizamoglu, J A Ward, Q Frew, H Gerrish, N Martin, A Shaw, D Barnes, O Shelly, B Philp, N El-Muttardi, P Dziewulski
INTRODUCTION: Stevens Johnson Syndrome/toxic epidermal necrolysis (SJS/TEN) are rare, potentially fatal desquamative disorders characterised by large areas of partial thickness skin and mucosal loss. The degree of epidermal detachment that occurs has led to SJS/TEN being described as a burn-like condition. These patients benefit from judicious critical care, early debridement and meticulous wound care. This is best undertaken within a multidisciplinary setting led by clinicians experienced in the management of massive skin loss and its sequelae...
October 10, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29029357/a-pilot-retrospective-study-to-evaluate-two-multi-layer-foam-dressings-for-the-management-of-moderately-exudative-pressure-injuries
#16
Kevin Woo, Jennifer Kasaboski
Prevention and treatment of pressure injuries (PI) is a standard benchmark for quality of care, performance, risk reduction, and patient safety. Foam dressings are designed to wick away a large volume of exudate with minimal lateral movement to prevent periwound skin maceration; this renders foam dressings a popular choice for the treatment of chronic wounds with high to moderate amounts of exudate. In addition, multi-layer foam dressings may have added benefits to alleviate pressure and minimize shear as the dressing materials slide against each other...
October 12, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29028413/initial-assessment-treatment-and-follow-up-of-minor-pediatric-burn-wounds-in-four-patients-remotely-a-preliminary-communication
#17
Marek A Paul, Parisa Kamali, Ahmed M S Ibrahim, Caroline Medin, Bernard T Lee, Samuel J Lin
BACKGROUND: Close, multidisciplinary collaboration with burn experts is the essential strategy to achieve the best functional and esthetic outcomes in burn wound treatment. Management of minor burn injuries, where no specialized care is available, might be challenging. One concept to achieve a fast and timely result is the application of telemedicine. The objective of this study was to assess and develop a simple telemedicine protocol, which can be applied globally. MATERIAL AND METHODS: We present a pilot study based on a pediatric population of four patients with minor burns...
October 13, 2017: Telemedicine Journal and E-health: the Official Journal of the American Telemedicine Association
https://www.readbyqxmd.com/read/29026426/effects-of-nanozeolite-starch-thermoplastic-hydrogels-on-wound-healing
#18
Hossein Salehi, Mohammad Mehrasa, Bijan Nasri-Nasrabadi, Mohsen Doostmohammadi, Reihaneh Seyedebrahimi, Navid Davari, Mohammad Rafienia, Mehdi E Hosseinabadi, Maria Agheb, Mansour Siavash
BACKGROUND: Wound healing is a complex biological process. Some injuries lead to chronic nonhealing ulcers, and healing process is a challenge to both the patient and the medical team. We still look forward an appropriate wound dressing. MATERIALS AND METHODS: In this study, starch-based nanocomposite hydrogel scaffolds reinforced by zeolite nanoparticles (nZ) were prepared for wound dressing. In addition, a herbal drug (chamomile extract) was added into the matrix to accelerate healing process...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/29025671/in-situ-and-ex-situ-modifications-of-bacterial-cellulose-for-applications-in-tissue-engineering
#19
REVIEW
Taisa Regina Stumpf, Xiuying Yang, Jingchang Zhang, Xudong Cao
Bacterial cellulose (BC) is secreted by a few strains of bacteria and consists of a cellulose nanofiber network with unique characteristics. Because of its excellent mechanical properties, outstanding biocompatibilities, and abilities to form porous structures, BC has been studied for a variety of applications in different fields, including the use as a biomaterial for scaffolds in tissue engineering. To extend its applications in tissue engineering, native BC is normally modified to enhance its properties...
January 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/29025669/preparation-and-evaluation-of-squid-ink-polysaccharide-chitosan-as-a-wound-healing-sponge
#20
Na Huang, Jiali Lin, Sidong Li, Yifeng Deng, Songzhi Kong, Pengzhi Hong, Ping Yang, Mingneng Liao, Zhang Hu
A new type of wound healing agent was developed using two marine biomaterials (squid ink polysaccharide and chitosan) as carriers and calcium chloride as an initiator for coagulation. Based on central composite design-response surface methodology, comprehensive evaluation of appearance quality for composite sponges and water absorbency were used as evaluation indices to identify the optimized preparation conditions and further evaluate the performance of the squid ink polysaccharide-chitosan sponge (SIP-CS)...
January 1, 2018: Materials Science & Engineering. C, Materials for Biological Applications
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