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Non-healing wound

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https://www.readbyqxmd.com/read/27905181/effectiveness-of-collagen-oxidised-regenerated-cellulose-silver-containing-composite-wound-dressing-for-the-treatment-of-medium-depth-split-thickness-skin-graft-donor-site-wounds-in-multi-morbid-patients-a-prospective-non-comparative-single-centre-study
#1
Alexander Konstantinow, Tatjana V Fischer, Johannes Ring
Split-thickness skin grafting (STSG) is a widely used method in reconstructive surgery, but donor site wounds (DSWs) are often slow healing and painful. This prospective study evaluated the performance of a composite wound dressing containing collagen/oxidised regenerated cellulose in the treatment of medium-depth (0·4 mm) DSWs in 25 multi-morbid patients with chronic leg ulcers requiring STSG. The range of patients' ages was 44-84 years (mean 71·6 years) with DSW sizes ranging between 12 and 162 cm(2) (mean 78 cm(2) )...
December 1, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27904531/effects-of-hyperbaric-oxygen-therapy-combined-with-platelet-rich-plasma-on-diabetic-wounds-an-experimental-rat-model
#2
Gündüz Yümün, Cüneyt Kahaman, Nail Kahaman, Ulviye Yalçınkaya, Aydin Akçılar, Engin Akgül, Ahmet Hakan Vural
INTRODUCTION: Hyperbaric oxygen and platelet-rich plasma are used in the treatment of diabetic wounds. The aim of this study is to evaluate the effects of hyperbaric oxygen therapy and autologous platelet concentrates in healing diabetic wounds. MATERIAL AND METHODS: Thirty-six female Wistar albino rats were used in this study. Diabetes mellitus was induced chemically with an intraperitoneal injection of streptozotocin. The rats were divided into a control group, a hyperbaric oxygen group, a platelet-rich plasma group, and a combined therapy group...
December 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27902637/bilateral-congenital-torticollis-a-case-report-with-25-years-of-follow-up
#3
Lukasz Matuszewski, Damian Pietrzyk, Grzegorz Kandzierski, Michal Wilczynski
Unilateral congenital sternocleidomastoid muscle (SCM) contracture causing torticollis is well known. Although the unilateral muscular torticollis is quite often recognized, a bilateral contracture of SCM muscle is very rare. A review of the literature showed only three cases of bilateral congenital torticollis reported over the last two decades. We present a case report of a boy with congenital bilateral torticollis with 25 years of follow-up. Bilateral tenotomies of the right SCM were performed and the child was immobilized in Schanz's cervical orthosis...
November 29, 2016: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/27900045/microrna-133b-inhibits-the-migration-and-invasion-of-non-small-cell-lung-cancer-cells-via-targeting-fscn1
#4
Xucheng Yang, Pengfei Lei, Yong Huang, Zijian Zhang, Yingying Zhang
MicroRNA (miR)-133b has been reported to act as a tumor suppressor in multiple types of human cancers, including non small cell lung cancer (NSCLC). However, the underlying mechanism by which miR-133b inhibits NSCLC metastasis remains largely unclear. In the present study, reverse transcription-quantitative polymerase chain reaction and western blotting were used to detect messenger RNA and protein expression. A wound healing assay and transwell assay were used to examine the cell migration and invasion. The expression level of miR-133b was found to be significantly downregulated in NSCLC cell lines compared with normal lung epithelial BEAS-2B cells...
November 2016: Oncology Letters
https://www.readbyqxmd.com/read/27897153/isoflurane-promotes-non-small-cell-lung-cancer-malignancy-by-activating-the-akt-mammalian-target-of-rapamycin-mtor-signaling-pathway
#5
Wenhua Zhang, Xueqian Shao
BACKGROUND Lung cancer is one of the leading causes of cancer mortalities worldwide, and non-small cell lung cancer (NSCLC) accounts for the majority of all lung cancer cases. Surgery remains one of the front-line treatment options for NSCLC, but events within the perioperative period were found to affect cancer prognosis, such as anesthesia procedures. Isoflurane, a commonly used volatile anesthetic, enhances the malignant potential of renal, prostate, and ovarian cancer cells, but its effects on NSCLC development have not been previously reported...
November 29, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27891492/effect-of-magnetic-field-on-bone-healing-around-endosseous-implants-an-in-vivo-study
#6
Mahalakshmi Gujjalapudi, Chandrasekar Anam, Praveen Mamidi, Radha Chiluka, A Gautam Kumar, Ragini Bibinagar
INTRODUCTION: After implant placement, a stress-free healing period of 3-6 months is a pre-requisite to achieve good osseointegration. If this duration could be reduced, the patients would feel happier. Eventhough, immediate loading of implants is a clinically feasible concept; it is not possible in certain situations. Few studies have shown that Static magnetic field is useful to promote bone formation faster after the bone is wounded. AIM: This pilot study was intended to evaluate the tissue response after implant placement under the influence of magnetic field...
October 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/27887793/antiproliferative-and-antimetastatic-action-of-quercetin-on-a549-non-small-cell-lung-cancer-cells-through-its-effect-on-the-cytoskeleton
#7
Anna Klimaszewska-Wiśniewska, Marta Hałas-Wiśniewska, Magdalena Izdebska, Maciej Gagat, Alina Grzanka, Dariusz Grzanka
To our knowledge, this study is the first to investigate the effect of the dietary flavonoid quercetin on the main cytoskeletal elements, namely microfilaments, microtubules and vimentin intermediate filaments, as well as cytoskeleton-driven processes in A549 non-small cell lung cancer cells. The methyl-thiazol-diphenyl-tetrazolium assay, annexin V/propidium iodide test, electron microscopic examination, cell cycle analysis based on DNA content, real-time PCR assays, in vitro scratch wound-healing assay, fluorescence staining of F-actin, β-tubulin and vimentin were performed to assess the effects of quercetin on A549 cells...
November 22, 2016: Acta Histochemica
https://www.readbyqxmd.com/read/27882211/novel-perspectives-on-the-role-of-the-human-microbiota-in-regenerative-medicine-and-surgery
#8
Tommaso Pellegatta, Marco Saler, Viola Bonfanti, Giovanni Nicoletti, Angela Faga
Plastic surgery is transitioning from a fine craftsmanship to a regenerative science. In wound healing, the role of microorganisms is no longer considered to be just counteracting, but also promoting. Furthermore, host-microbe interactions are essential for numerous aspects of normal mammalian physiology, from metabolic activity to immune homeostasis. Each area of the human body hosts a unique microbial community, and the composition of microbiota is dependent on the host, age and the anatomical area, and it changes according to the characteristics of the microenvironment...
November 2016: Biomedical Reports
https://www.readbyqxmd.com/read/27877909/chitosan-nanocomposites-based-on-distinct-inorganic-fillers-for-biomedical-applications
#9
Duarte Moura, João F Mano, Maria C Paiva, Natália M Alves
Chitosan (CHI), a biocompatible and biodegradable polysaccharide with the ability to provide a non-protein matrix for tissue growth, is considered to be an ideal material in the biomedical field. However, the lack of good mechanical properties limits its applications. In order to overcome this drawback, CHI has been combined with different polymers and fillers, leading to a variety of chitosan-based nanocomposites. The extensive research on CHI nanocomposites as well as their main biomedical applications are reviewed in this paper...
2016: Science and Technology of Advanced Materials
https://www.readbyqxmd.com/read/27873518/mir-379-inhibits-cell-proliferation-invasion-and-migration-of-vascular-smooth-muscle-cells-by-targeting-insulin-like-factor-1
#10
Kai Li, Yong Wang, Anji Zhang, Baixue Liu, Li Jia
PURPOSE: MicroRNAs are small non-coding RNAs that play important roles in vascular smooth muscle cell (VSMC) function. This study investigated the role of miR-379 on proliferation, invasion, and migration of VSMCs and explored underlying mechanisms thereof. MATERIALS AND METHODS: MicroRNA, mRNA, and protein levels were determined by quantitative real-time PCR and western blot. The proliferative, invasive, and migratory abilities of VSMCs were measured by CCK-8, invasion, and wound healing assay, respectively...
January 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/27868341/a-single-arm-trial-indirect-comparison-investigation-a-proof-of-concept-method-to-predict-venous-leg-ulcer-healing-time-for-a-new-acellular-synthetic-matrix-matched-to-standard-care-control
#11
Ronald Shannon, Andrea Nelson
To compare data on time to healing from two separate cohorts: one treated with a new acellular synthetic matrix plus standard care (SC) and one matched from four large UK pragmatic, randomised controlled trials [venous leg ulcer (VLU) evidence network]. We introduce a new proof-of-concept strategy to a VLU clinical evidence network, propensity score matching and sensitivity analysis to predict the feasibility of the new acellular synthetic matrix plus SC for success in future randomised, controlled clinical trials...
November 20, 2016: International Wound Journal
https://www.readbyqxmd.com/read/27868087/diabetic-wound-healing-and-activation-of-nrf2-by-herbal-medicine
#12
Donald R Senger, Shugeng Cao
Nrf2 defense is a very important cellular mechanism to control oxidative stress, which is implicated in wound healing. Nrf2 can induce many cytoprotective genes, including HO-1, NQO1 and G6PD. Among many natural products that have been reported as Nrf2 activators, sulforaphane and curcumin have been studied more widely than any others, and both are in clinical trials for non-cancerous disorders. Recently, we reported 4-ethyl catechol and 4-vinyl catechol as Nrf2 co-factors that can induce Nrf2 as potently as sulforaphane and curcumin...
2016: Journal of Nature and Science
https://www.readbyqxmd.com/read/27866791/mesenchymal-stem-cells-the-roles-and-functions-in-cutaneous-wound-healing-and-tumor-growth
#13
REVIEW
Sei-Ichiro Motegi, Osamu Ishikawa
Mesenchymal stem cells (MSCs) are bone marrow-derived non-hematopoietic progenitor cells. MSCs are able to differentiate into various types of cells, including chondrocytes, adipocytes, osteocytes, myocytes, endothelial cells, and keratinocytes. There is increasing evidence that MSCs might be located external to the vasculature, and that perivascular cells in the skin, generally called as "pericytes", might include MSCs. It has been suggested that MSCs localized around blood vessels might migrate into wounds and contribute to the restoration of injured tissues...
November 11, 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27864063/quercetin-impregnated-chitosan-fibrin-composite-scaffolds-as-potential-wound-dressing-materials-fabrication-characterization-and-in-vivo-analysis
#14
Weslen S Vedakumari, Nazeeha Ayaz, Arun S Karthick, Rethinam Senthil, Thotapalli P Sastry
The present study efforts at fabricating chitosan-fibrin composite (CF) scaffolds impregnated with quercetin for wound dressing application and aims at investigating their physicochemical properties. CF scaffolds were prepared by mixing acidic solution of chitosan with an alkaline solution of fibrin, to which quercetin (Q) was added, homogenized and lyophilized obtain Q-CF scaffold. FTIR spectra were used to determine the interactions between the functional groups of quercetin and CF scaffolds. TGA analysis revealed the decomposition of saccharide rings and amino acids of chitosan and fibrin at the temperature range of 255-400°C...
November 15, 2016: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/27863471/tanshinone-iia-combined-with-adriamycin-inhibited-malignant-biological-behaviors-of-nsclc-a549-cell-line-in-a-synergistic-way
#15
Jun Xie, Jia-Hui Liu, Heng Liu, Xiao-Zhong Liao, Yuling Chen, Mei-Gui Lin, Yue-Yu Gu, Tao-Li Liu, Dong-Mei Wang, Hui Ge, Sui-Lin Mo
BACKGROUND: The study was designed to develop a platform to verify whether the extract of herbs combined with chemotherapy drugs play a synergistic role in anti-tumor effects, and to provide experimental evidence and theoretical reference for finding new effective sensitizers. METHODS: Inhibition of tanshinone IIA and adriamycin on the proliferation of A549, PC9 and HLF cells were assessed by CCK8 assays. The combination index (CI) was calculated with the Chou-Talalay method, based on the median-effect principle...
November 18, 2016: BMC Cancer
https://www.readbyqxmd.com/read/27863353/association-of-increased-serum-ctrp5-levels-with-in-stent-restenosis-after-coronary-drug-eluting-stent-implantation-ctrp5-promoting-inflammation-migration-and-proliferation-in-vascular-smooth-muscle-cells
#16
Ying Shen, Chang Li, Rui Yan Zhang, Qi Zhang, Wei Feng Shen, Feng Hua Ding, Lin Lu
BACKGROUND: We investigated whether serum level of C1q/TNF-related protein (CTRP) 5 is associated with in-stent restenosis (ISR) after percutaneous coronary intervention (PCI) with drug-eluting stent (DES) implantation, and assessed the biological effects of CTRP5 in human aortic smooth muscle cells (hASMCs). METHODS AND RESULTS: Serum CTRP5 levels were assayed in 306 patients with and 306 patients without angiographic ISR at approximately one year after DES-based PCI...
November 11, 2016: International Journal of Cardiology
https://www.readbyqxmd.com/read/27862209/leg-injuries-and-wound-repair-among-cosmetid-harvestmen-arachnida-opiliones-laniatores
#17
Victor R Townsend, Maynard H Schaus, Tatyana Zvonareva, Jeffrey J Illinik, John T Evans
Previous studies of leg injuries in harvestmen have focused on the fitness consequences for individuals that use autospasy (voluntary detachment of the leg) as a secondary defense mechanism. Leg damage among non-autotomizing species of laniatorean harvestmen has not been investigated. Under laboratory conditions, we damaged femur IV of Cynorta marginalis and observed with scanning electron microscopy (SEM) the changes in these wounds over ten days. We also used SEM to examine leg damage from individuals of three species of cosmetid harvestmen that were collected in the field...
November 8, 2016: Journal of Morphology
https://www.readbyqxmd.com/read/27861614/photobiomodulation-with-pulsed-and-continuous-wave-near-infrared-laser-810-nm-al-ga-as-augments-dermal-wound-healing-in-immunosuppressed-rats
#18
Gaurav K Keshri, Asheesh Gupta, Anju Yadav, Sanjeev K Sharma, Shashi Bala Singh
Chronic non-healing cutaneous wounds are often vulnerable in one or more repair phases that prevent normal healing and pose challenges to the use of conventional wound care modalities. In immunosuppressed subject, the sequential stages of healing get hampered, which may be the consequences of dysregulated or stagnant wound inflammation. Photobiomodulation (PBM) or low-level laser (light) therapy (LLLT) emerges as a promising drug-free, non-invasive biophysical approach for promoting wound healing, reduction of inflammation, pain and restoration of functions...
2016: PloS One
https://www.readbyqxmd.com/read/27860426/human-corneal-fibroblast-migration-and-ecm-synthesis-during-stromal-repair-role-played-by-pdgf-bb-bfgf-and-tgf%C3%AE-1
#19
Patricia Gallego-Muñoz, Lucía Ibares-Frías, José A Garrote, María Cruz Valsero-Blanco, Roberto Cantalapiedra-Rodríguez, Jesús Merayo-Lloves, M Carmen Martínez-García
The development of treatments that modulate corneal wound healing to avoid fibrosis during tissue repair is important for the restoration of corneal transparency after an injury. To date, few studies have studied the influence of growth factors (GFs) on human corneal fibroblast (HCF) expression of extracellular matrix (ECM) proteins such as collagen types I and III, proteoglycans such as perlecan, or proteins implicated in cellular migration such as α5β1-integrin and syndecan-4. Using in vitro HCFs, we developed a mechanical wound model to study the influence of the GFs basic fibroblast growth factor (bFGF), platelet-derived growth factor (PDGF-BB), and transforming growth factor beta 1 (TGFβ1) on ECM protein production and cellular migration...
November 15, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27859389/influence-of-gold-nanoparticles-on-wound-healing-treatment-in-rat-model-photobiomodulation-therapy
#20
PikSuan Lau, Noriah Bidin, Shumaila Islam, Wan Norsyuhada Binti Wan Mohd Shukri, Nurlaily Zakaria, Nurfatin Musa, Ganesan Krishnan
BACKGROUND AND OBJECTIVE: The aim of this study is to investigate the effect of gold nanoparticles (AuNPs) in photobiomodulation therapy (PBMT) on wound healing process. MATERIALS AND METHODS: AuNPs are synthesized by Q-switched Nd:YAG laser ablation technique. Cutaneous wound are induced on 45 Sprague Dawley rats on its dorsal part and then randomly divided into three groups. One group serves as non-treatment group (GC) and another two groups are subjected to AuNPs with and without PBMT...
November 12, 2016: Lasers in Surgery and Medicine
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