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https://www.readbyqxmd.com/read/28646685/a-highly-adhesive-and-naturally-derived-sealant
#1
Alexander Assmann, Andrea Vegh, Mohammad Ghasemi-Rad, Sara Bagherifard, George Cheng, Ehsan Shirzaei Sani, Guillermo U Ruiz-Esparza, Iman Noshadi, Antonio D Lassaletta, Sidhu Gangadharan, Ali Tamayol, Ali Khademhosseini, Nasim Annabi
Conventional surgical techniques to seal and repair defects in highly stressed elastic tissues are insufficient. Therefore, this study aimed to engineer an inexpensive, highly adhesive, biocompatible, and biodegradable sealant based on a modified and naturally derived biopolymer, gelatin methacryloyl (GelMA). We tuned the degree of gelatin modification, prepolymer concentration, photoinitiator concentration, and crosslinking conditions to optimize the physical properties and adhesion of the photocrosslinked GelMA sealants...
June 6, 2017: Biomaterials
https://www.readbyqxmd.com/read/28646630/characteristics-of-systemic-inflammation-in-hepatitis-b-precipitated-aclf-differentiate-it-from-no-aclf
#2
Wei Wu, Huadong Yan, Hong Zhao, Wenjie Sun, Qiao Yang, Jifang Sheng, Yu Shi
BACKGROUND AND AIMS: Patients with severe exacerbation of chronic hepatitis B (SE-CHB) are at risk of developing acute-on-chronic liver failure (ACLF). Systemic inflammation (SI) is a major driver of ACLF. The aim of this study was to identify characteristics of SI in hepatitis B-precipitated-ACLF (HB-ACLF), which may be distinct from No-ACLF patients with SE-CHB. METHODS: Two cohorts of patients with SE-CHB were enrolled in two tertiary hospitals. The associations between circulating leukocyte counts/subsets and ACLF progression and prognoses were analysed in Cohort A...
June 24, 2017: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/28646601/autophagy-activation-is-required-for-myofibroblasts-differentiation-during-healing-of-oral-mucosa
#3
Enrica Vescarelli, Andrea Pilloni, Francesco Dominici, Paola Pontecorvi, Antonio Angeloni, Antonella Polimeni, Simona Ceccarelli, Cinzia Marchese
AIM: It is known that periodontal tissues heal faster that skin, and gingiva in particular heal without scar formation. The mechanisms regulating this behavior are still unclear. The aim of our work is to compare wound healing in oral mucosa and gingiva, investigating the role of αSMA-expressing myofibroblasts and autophagy. MATERIALS AND METHODS: Biopsies were obtained from 7 patients immediately before and 24h after vertical releasing incision in oral mucosa and attached gingiva...
June 24, 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28646530/pirfenidone-reduces-subchondral-bone-loss-and-fibrosis-after-murine-knee-cartilage-injury
#4
Deva D Chan, Jun Li, Wei Luo, Dan N Predescu, Brian J Cole, Anna Plaas
Pirfenidone is an anti-inflammatory and anti-fibrotic drug that has shown efficacy in lung and kidney fibrosis. Because inflammation and fibrosis have been linked to the progression of osteoarthritis, we investigated the effects of oral Pirfenidone in a mouse model of cartilage injury, which results in chronic inflammation and joint-wide fibrosis in mice that lack hyaluronan synthase 1 (Has1(-/-) ) in comparison to wild-type. Femoral cartilage was surgically injured in wild-type and Has1(-/-) mice, and Pirfenidone was administered in food starting after 3 days...
June 23, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28646507/influences-of-placental-growth-factor-on-mouse-retinal-vascular-development
#5
Vanessa R Kay, Chandrakant Tayade, Peter Carmeliet, B Anne Croy
BACKGROUND: Placental Growth Factor (PGF) is important for wound-healing and vascular collaterogenesis. PGF deficiency is associated with preeclampsia, a hypertensive disease of human pregnancy. Offspring born to preeclamptic mothers display cognitive impairments and brain vascular and neurostructural deviations. Low PGF production during development may contribute to alterations in offspring cerebrovascular beds. Retina is a readily accessible part of the central nervous system with a well-described pattern of vascular development in mice...
June 24, 2017: Developmental Dynamics: An Official Publication of the American Association of Anatomists
https://www.readbyqxmd.com/read/28646271/characterization-of-adipose-derived-stem-cells-following-burn-injury
#6
Anesh Prasai, Amina El Ayadi, Randy C Mifflin, Michael D Wetzel, Clark R Andersen, Heinz Redl, David N Herndon, Celeste C Finnerty
Severe burns induce a prolonged inflammatory response in subcutaneous adipose tissue that modulates signaling in adipose-derived stem cells (ASCs), which hold potential for healing burn wounds or generating skin substitutes. Using a 60% rat scald burn model, we conducted a series of experiments to determine which cells isolated from the adipose tissue produced inflammatory mediators and how these changes affect ASC fate and function. The stromal vascular fraction (SVF), adipocytes, and ASCs were isolated from adipose tissue at varying times up to 4 weeks postburn and from non-injured controls...
June 23, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28646180/sustained-release-from-a-metal-analgesics-entrapped-within-biocidal-silver
#7
Barak Menagen, Rami Pedahzur, David Avnir
Matrices for sustained release of drugs have been based on polymers, biomaterials and oxides. The use of the major family of metals as matrices for sustained release is, to the best of our knowledge, unknown. In this context we describe a new family of bio-composites for sustained release of drugs, namely analgesic drugs entrapped within metallic silver. Synthetic methodologies were developed for the preparation of ibuprofen@Ag, naproxen@Ag, tramadol@Ag and bupivacaine@Ag composites. Detailed kinetic analysis of the release of the drugs from within the metal, is provided, demonstrating that metals can indeed serve as reservoirs for drug release...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28646103/long-term-and-short-term-outcomes-of-using-bilateral-internal-mammary-artery-grafting-versus-left-internal-mammary-artery-grafting-a-meta-analysis
#8
Sana N Buttar, Tristan D Yan, David P Taggart, David H Tian
BACKGROUND: A substantial body of evidence demonstrates that myocardial revascularisation using bilateral internal mammary arteries (BIMA) improves long-term survival compared with single/left internal mammary artery (LIMA) grafting. To date, limited analyses have been made regarding other short-term and long-term outcomes in BIMA strategy. OBJECTIVES: The primary aim of the present review is to update the difference in long-term survival between BIMA and LIMA grafting and to thoroughly investigate other secondary short-term and long-term clinical outcomes between these two grafting procedures...
June 23, 2017: Heart: Official Journal of the British Cardiac Society
https://www.readbyqxmd.com/read/28645839/antibiotic-prophylaxis-adequacy-in-knee-arthroplasty-and-surgical-wound-infection-prospective-cohort-study
#9
J A Del-Moral-Luque, A Checa-García, Á López-Hualda, M C Villar-Del-Campo, J Martínez-Martín, F J Moreno-Coronas, J Montejo-Sancho, G Rodríguez-Caravaca
OBJECTIVE: Antibiotic prophylaxis is the most suitable tool for preventing surgical wound infection. This study evaluated adequacy of antibiotic prophylaxis in surgery for knee arthroplasty and its effect on surgical site infection. MATERIAL AND METHOD: Prospective cohort study. We assessed the degree of adequacy of antibiotic prophylaxis, the causes of non-adequacy, and the effect of non-adequacy on surgical site infection. Incidence of surgical site infection was studied after a maximum incubation period of a year...
June 20, 2017: Revista Española de Cirugía Ortopédica y Traumatología
https://www.readbyqxmd.com/read/28645773/abc-protein-cgabcf2-is-required-for-asexual-and-sexual-development-appressorial-formation-and-plant-infection-in-colletotrichum-gloeosporioides
#10
Zongshan Zhou, Jianyuan Wu, Meiyu Wang, Junxiang Zhang
ATP-binding cassette (ABC) proteins are exclusively found in both prokaryotes and eukaryotes. In this study, we have characterized a gene from Glomerella leaf spot pathogen Colletotrichum gloeosporioides that encodes an ABC protein, whose function to date remains unknown. We designated this gene as CgABCF2. Deletion of CgABCF2 showed drastic reduction both growing rate and conidial production in C. gloeosporioides. The Δcgabcf2 mutant did not form the appressoria, lost the capability to infect apple and failed to form lesions on the wounded leaves and fruits...
June 20, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/28645672/percutaneous-pedicle-screw-placement-under-single-dimensional-fluoroscopy-with-a-designed-pedicle-finder-a-technical-note-and-case-series
#11
Fon-Yih Tsuang, Chia-Hsien Chen, Yi-Jie Kuo, Wei-Lung Tseng, Yuan-Shen Chen, Chin-Jung Lin, Chun-Jen Liao, Feng-Huei Lin, Chang-Jung Chiang
BACKGROUND CONTEXT: Minimally invasive spine surgery has become increasingly popular in clinical practice, and it offers patients the potential benefits of reduced blood loss, wound pain, and infection risk and also diminishes the loss of working time and length of hospital stay. However, surgeons require more intraoperative fluoroscopy and ionizing radiation exposure during minimally invasive spine surgery for localization, especially for guidance in instrumentation placement. In addition, computer navigation is not accessible in some facility-limited institutions...
June 20, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28645529/nanoparticle-based-dressing-the-future-of-wound-treatment
#12
REVIEW
Morgane Berthet, Yves Gauthier, Céline Lacroix, Bernard Verrier, Claire Monge
Reconstructing functional skin after a wound remains a challenge due to the complexity of healing. In this regard, biocompatible nanoparticles (NPs) carrying and releasing bioactive drugs in a controlled and sustained manner may significantly improve the efficacy of wound therapies compared with current treatments. Topical administration of drug-loaded NPs allows optimal delivery to the dermis and improves product efficacy. Furthermore, associating NPs with scaffolds represents a new concept of 'dressing'. Experimental in vivo, ex vivo, and in vitro models have been developed in preclinical assays to evaluate the beneficial effects of nanoparticulate dressings...
June 20, 2017: Trends in Biotechnology
https://www.readbyqxmd.com/read/28645493/sprayable-carbopol-hydrogel-with-soluble-beta-1-3-1-6-glucan-as-an-active-ingredient-for-wound-healing-development-and-in-vivo-evaluation
#13
Jostein Grip, Rolf Einar Engstad, Ingrid Skjæveland, Nataša Škalko-Basnet, Ann Mari Holsæter
Chronic wounds represent a significant health problem worldwide. There is a need for advanced- and cost-efficient wound healing products able to increase patient comfort and reduce the healing time. The aim of this study was to develop a sprayable hydrogel dressing with beta-glucan (βG) as the active ingredient, targeting future application in the treatment of both chronic and burn wounds. The βG was chosen as an active ingredient because of its promising wound healing capabilities, whereas Carbopol 971P NF (Carbopol) was chosen as the thickening agent in the formulation due to several attractive characteristics such as its low viscosity, low toxicity, high transparency and good ion tolerance...
June 20, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28645169/heterodimerization-of-arabidopsis-calcium-proton-exchangers-contributes-to-regulation-of-guard-cell-dynamics-and-plant-defense-responses
#14
Bradleigh Hocking, Simon J Conn, Murli Manohar, Bo Xu, Asmini Athman, Matthew A Stancombe, Alex R Webb, Kendal D Hirschi, Matthew Gilliham
Arabidopsis thaliana cation exchangers (CAX1 and CAX3) are closely related tonoplast-localized calcium/proton (Ca2+/H+) antiporters that contribute to cellular Ca2+ homeostasis. CAX1 and CAX3 were previously shown to interact in yeast; however, the function of this complex in plants has remained elusive. Here, we demonstrate that expression of CAX1 and CAX3 occurs in guard cells. Additionally, CAX1 and CAX3 are co-expressed in mesophyll tissue in response to wounding or flg22 treatment, due to the induction of CAX3 expression...
June 22, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28645160/chronic-pseudomonas-aeruginosa-biofilm-infection-impairs-murine-s100a8-a9-and-neutrophil-effector-cytokines-implications-for-delayed-wound-closure
#15
Hannah Trøstrup, Christian Johann Lerche, Lars Jackie Christophersen, Kim Thomsen, Peter Østrup Jensen, Hans Petter Hougen, Niels Høiby, Claus Moser
The impact of Pseudomonas aeruginosa biofilm infections in chronic wounds and clinical implication for healing is receiving increased attention. However, the pathophysiology of host/pathogen interplay is not fully understood. By further revealing the mechanisms, necessary new treatment strategies may be identified. Since the background for chronic wounds is diverse, representative animal models are important. We assessed host response and spontaneous wound closure in the relatively resistant C3H/HeN and the susceptible BALB/c mouse strain...
June 22, 2017: Pathogens and Disease
https://www.readbyqxmd.com/read/28644870/effects-of-nicotine-on-corneal-wound-healing-following-acute-alkali-burn
#16
Jong Won Kim, Chae Woong Lim, Bumseok Kim
Epidemiological studies have indicated that smoking is a pivotal risk factor for the progression of several chronic diseases. Nicotine, the addictive component of cigarettes, has powerful pathophysiological properties in the body. Although the effects of cigarette smoking on corneal re-epithelialization have been studied, the effects of nicotine on corneal wound healing-related neovascularization and fibrosis have not been fully demonstrated. The aim of this study was to evaluate the effects of chronic administration of nicotine on corneal wound healing following acute insult induced by an alkali burn...
2017: PloS One
https://www.readbyqxmd.com/read/28644845/lipo-pge1-suppresses-collagen-production-in-human-dermal-fibroblasts-via-the-erk-ets-1-signaling-pathway
#17
Yoolhee Yang, Hee Jung Kim, Kyong-Je Woo, Daeho Cho, Sa Ik Bang
Dysregulation of collagen production contributes to various pathological processes, including tissue fibrosis as well as impaired wound healing. Lipo-prostaglandin E1 (Lipo-PGE1), a lipid microsphere-incorporated prostaglandin E1, is used as a vasodilator for the treatment of peripheral vascular diseases. Lipo-PGE1 was recently shown to enhance human dermal fibroblast (HDF) migration and in vivo wound healing. No published study has characterized the role of Lipo-PGE1 in collagen regulation in HDFs. Here, we investigated the cellular signaling mechanism by which Lipo-PGE1 regulates collagen in HDFs...
2017: PloS One
https://www.readbyqxmd.com/read/28644278/newscap-the-presence-of-more-certified-wound-care-nurses-is-associated-with-fewer-hapis
#18
(no author information available yet)
No abstract text is available yet for this article.
July 2017: American Journal of Nursing
https://www.readbyqxmd.com/read/28644234/efficacy-of-sodium-hyaluronate-in-murine-diabetic-ocular-surface-diseases
#19
Guohu Di, Xia Qi, Xiaowen Zhao, Songmei Zhang, Qingjun Zhou
PURPOSE: To evaluate the efficacy of sodium hyaluronate (HA) eye drops for the treatment of diabetic ocular surface diseases in mice. METHODS: Male 6- to 8-week-old C57BL/6 mice underwent induction of type 1 diabetes with intraperitoneal injections of streptozotocin, with normal mice as the control. Topical 0.3% HA, 0.1% HA, 0.4% polyethylene glycol eye drops, and normal saline were administered to diabetic mice with an intact or debrided corneal epithelium. Normal saline was applied in the controls...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28644208/shake-it-off-a-randomized-pilot-study-of-the-effect-of-whole-body-vibration-on-pain-in-healing-burn-wounds
#20
Juliet J Ray, Angel D Alvarez, Sondra L Ulbrich, Sharon Lessner-Eisenberg, Shevonne S Satahoo, Jonathan P Meizoso, Charles A Karcutskie, Leela S Mundra, Nicholas Namias, Louis R Pizano, Carl I Schulman
Whole body vibration (WBV) has been shown to improve strength in extremities with healed burn wounds. We hypothesize that WBV reduces pain during rehabilitation compared to standard therapy alone. Patients with ≥1% TBSA burn to one or more extremities from October 2014 to December 2015 were randomized to vibration (VIBE) or control. Each burned extremity was tested separately within the assigned group. Patients underwent one to three therapy sessions (S1, S2, S3) consisting of five upper and/or lower extremity exercises with or without WBV...
July 2017: Journal of Burn Care & Research: Official Publication of the American Burn Association
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