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Tissue healing

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https://www.readbyqxmd.com/read/28526905/effectiveness-of-acellular-dermal-matrix-on-autologous-split-thickness-skin-graft-in-treatment-of-deep-tissue-defect-esthetic-subjective-and-objective-evaluation
#1
Yoo Jung Lee, Myong Chul Park, Dong Ha Park, Hyung Min Hahn, Sue Min Kim, Il Jae Lee
BACKGROUND: A split-thickness skin graft (STSG) is performed to cover a large full-thickness skin defect. Esthetic and functional deficits can result, and many studies have sought to overcome them. This study compared the effectiveness of the acellular dermal matrix (ADM) graft and STSG concerning esthetic and functional effectiveness of ADM on scar quality. METHODS: Of the patients who underwent anterolateral thigh free flap from 2011 to 2015, patients who received skin graft only (n = 10) or skin graft with ADM (n = 20) for coverage of the donor site were enrolled...
May 19, 2017: Aesthetic Plastic Surgery
https://www.readbyqxmd.com/read/28526301/mfg-e8-reprogramming-of-macrophages-promotes-wound-healing-by-increased-bfgf-production-and-fibroblast-functions
#2
Patrick Laplante, Frédéric Brillant-Marquis, Marie-Joëlle Brissette, Benjamin Joannette-Pilon, Romain Cayrol, Victor Kokta, Jean-François Cailhier
Macrophages are essential for tissue repair. They have a crucial role in cutaneous wound healing, participating actively in the inflammation phase of the process. Unregulated macrophage activation may, however, represent a source of excessive inflammation leading to abnormal wound healing and hypertrophic scars. Our research group has demonstrated that apoptotic endothelial and epithelial cells secrete Milk Fat Globule Epidermal Growth Factor-8 (MFG-E8), which has the ability to reprogram macrophages from a M1 (pro-inflammatory) to a M2 (anti-inflammatory pro-repair) phenotype...
May 16, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28526046/balloon-versus-stenting-in-severe-ischaemia-of-the-leg-3-basil-3-study-protocol-for-a-randomised-controlled-trial
#3
Benjamin D Hunt, Matthew A Popplewell, Huw Davies, Lewis Meecham, Hugh Jarrett, Gareth Bate, Margaret Grant, Smitaa Patel, Catherine Hewitt, Lazaros Andronis, Jonathan J Deeks, Andrew Bradbury
BACKGROUND: Severe limb ischaemia (SLI) is defined as the presence of rest pain and/or tissue loss secondary to lower extremity atherosclerotic peripheral arterial disease. The superficial femoral and popliteal arteries are the most commonly diseased vessels in such patients and are being increasingly treated using endovascular revascularisation techniques. However, it is currently unknown whether drug-eluting stents and drug-coated balloons confer additional clinical benefits over more established techniques using plain balloons and bare metal stents, or whether they represent a cost-effective use of NHS resources...
May 19, 2017: Trials
https://www.readbyqxmd.com/read/28525724/interaction-between-mir-572-and-ppp2r2c-and-their-effects-on-proliferation-migration-and-invasion-of-nasopharyngeal-carcinoma-npc-cells
#4
Lei Yan, Kerui Cai, Jun Liang, Haifeng Liu, Yang Liu, Jinqiu Gui
We investigated the regulation of miR-572 on PPP2R2C and studied their effects on proliferation, migration as well as invasion of nasopharyngeal carcinoma (NPC) cells. NPC tissues and normal tissues were collected, and the expressions of miR-572 and PPP2R2C were detected by RT-PCR. And Western blot was applied to detect the expression of PPP2R2C protein. The target relationship between miR-572 and PPP2R2C was confirmed by dual luciferase reporter gene assay. MTT assay and flow cytometry was applied to investigate the viability and apoptosis of NPC cells...
May 19, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28525525/morphological-observation-on-critical-sized-cranial-defect-repaired-by-icariin-and-autologous-concentrate-growth-factors-in-rabbits
#5
Gang Li, Jie Wang, Guiyun Ren, Fuliang Hao, Yanning Zhang, Peikai Shi, Xiao Liu, Fusheng Dong
BACKGROUND Morphological changes repaired by icariin and autologous concentrate growth factors (ACGF) in critical-sized cranial defect were observed and their promoting effects were investigated. MATERIAL AND METHODS Seventy-two New Zealand white rabbits weighing 1.8~2.0kg were used to build a critical-sized cranial defect model and were randomly divided into 3 groups. X-ray, HE staining, general and histological observation, and immunohistochemistry were used to describe the changes caused by normal saline, icariin, and ACGF...
May 19, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28525303/low-level-laser-therapy-after-wisdom-teeth-surgery-evaluation-of-immunologic-markers-secretory-immunoglobulin-a-and-lysozyme-levels-and-thermographic-examination-placebo-controlled-study
#6
Tatjana Dostalova, Veronika Kroulikova, Stepan Podzimek, Helena Jelinková
OBJECTIVE: The goal of this investigation is to analyze the effect of therapeutic low-level laser therapy (LLLT) to have a possibility to check pain and inflammation connected with surgical removal of impacted lower third molars in general anesthesia or even phobia [not accompanied by pain or fear of dental treatment, using immunologic markers-secretory immunoglobulin A (sIgA) and lysozyme]. The healing process was also monitored by infrared thermography. BACKGROUND DATA: LLLT can accelerate the proliferation phase of healing and decrease the inflammatory reaction, but the effect is not really clear...
May 16, 2017: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/28525280/self-healing-self-assembled-%C3%AE-sheet-peptide-poly-%C3%AE-glutamic-acid-hybrid-hydrogels
#7
David E Clarke, E Thomas Pashuck, Sergio Bertazzo, Jonathan V M Weaver, Molly M Stevens
Self-assembled biomaterials are an important class of materials that can be injected and formed in situ. However, they often are not able to meet the mechanical properties necessary for many biological applications, losing mechanical properties at low strains. We synthesized hybrid hydrogels consisting of a poly(γ-glutamic acid) polymer network physically cross-linked via grafted self-assembling β-sheet peptides to provide non-covalent cross-linking through β-sheet assembly, reinforced with a polymer backbone to improve strain stability...
May 19, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28524250/one-plant-many-uses-a-review-of-the-pharmacological-applications-of-morinda-citrifolia
#8
REVIEW
Mylena Andréa Oliveira Torres, Isadora de Fátima Braga Magalhães, Renata Mondêgo-Oliveira, Joicy Cortez de Sá, Alessandra Lima Rocha, Ana Lucia Abreu-Silva
Morinda citrifolia, also known as noni, is commonly used in popular medicine in Brazil. Many parts of the noni tree are utilized in such practices, including the roots, leaves and seeds. Through a search of online databases, the present article reviews 92 research studies on the biological actions of M. citrifolia. The paper will discuss the therapeutic effects of noni and its compounds in a variety of forms of presentation, focusing on studies that support its traditional use. A large and diverse number of properties were identified, which were divided into immunostimulatory, antitumor, antidiabetic, anti-obesity, antibacterial and anti-septic, antifungal, antiviral, leishmanicidal, antiinflammatory, antinociceptive and analgesic, antioxidant, neuroprotective, wound healing, antiallergic, antiangiogenic, antiemetic and anti-nausea, anti-gastric ulcer and oesophagitis, anthelmintic, antimutagenic, antipsychotic, anxiolytic, photoprotective, anti-wrinkle and periodontal tissue regeneration activities...
May 19, 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28524177/role-of-carbonic-anhydrases-in-skin-wound-healing
#9
Harlan Barker, Marleena Aaltonen, Peiwen Pan, Maria Vähätupa, Pirkka Kaipiainen, Ulrike May, Stuart Prince, Hannele Uusitalo-Järvinen, Abdul Waheed, Silvia Pastoreková, William S Sly, Seppo Parkkila, Tero Ah Järvinen
Skin wound closure occurs when keratinocytes migrate from the edge of the wound and re-epithelialize the epidermis. Their migration takes place primarily before any vascularization is established, that is, under hypoxia, but relatively little is known regarding the factors that stimulate this migration. Hypoxia and an acidic environment are well-established stimuli for cancer cell migration. The carbonic anhydrases (CAs) contribute to tumor cell migration by generating an acidic environment through the conversion of carbon dioxide to bicarbonate and a proton...
May 19, 2017: Experimental & Molecular Medicine
https://www.readbyqxmd.com/read/28524095/pkc-in-regenerative-therapy-new-insights-for-old-targets
#10
REVIEW
Marta Rui, Rita Nasti, Emanuele Bignardi, Serena Della Volpe, Giacomo Rossino, Daniela Rossi, Simona Collina
Effective therapies for chronic or non-healing wounds are still lacking. These tissue insults often result in severe clinical complications (i.e., infections and/or amputation) and sometimes lead to patient death. Accordingly, several research groups have focused their efforts in finding innovative and powerful therapeutic strategies to overcome these issues. On the basis of these considerations, the comprehension of the molecular cascades behind these pathological conditions could allow the identification of molecules against chronic wounds...
May 18, 2017: Pharmaceuticals
https://www.readbyqxmd.com/read/28523744/bioinspired-ultratough-hydrogel-with-fast-recovery-self-healing-injectability-and-cytocompatibility
#11
Sara Azevedo, Ana M S Costa, Amanda Andersen, Insung S Choi, Henrik Birkedal, João F Mano
Inspired by the mussel byssus adhesiveness, a highly hydrated polymeric structure is designed to combine, for the first time, a set of interesting features for load-bearing purposes. These characteristics include: i) a compressive strength and stiffness in the MPa range, ii) toughness and the ability to recover it upon successive cyclic loading, iii) the ability to quickly self-heal upon rupture, iv) the possibility of administration through minimally invasive techniques, such as by injection, v) the swelling ratio being adjusted to space-filling applications, and vi) cytocompatibility...
May 19, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28523391/the-effect-of-low-level-diode-laser-on-cox-2-gene-expression-in-chronic-periodontitis-patients
#12
Snezana Pesevska, Icko Gjorgoski, Kiro Ivanovski, Nikolaos K Soldatos, Nikola Angelov
Adjunctive treatments to scaling and root planing (SRP) such as lasers, have been utilized in the treatment of chronic periodontitis, mainly aiming to suppress and eliminate the bacteria, as well as enhancing the healing response. Eighty gingival papilla biopsy samples were obtained from 60 patients diagnosed with chronic advanced periodontitis; randomly assigned to three treatment groups (n = 20), as well as 20 subjects with no periodontal disease [group A]. Group B received SRP on a single quadrant/day for four consecutive days...
May 18, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28523312/an-evaluation-of-a-collagen-based-material-osseointegration
#13
Horia Octavian Manolea, Monica Mihaela CrăiŢoiu, LaurenŢiu Mogoantă, Ionela Teodora Dascălu, Alina Iren Moraru, Doriana Agop Forna, Răzvan MercuŢ
The aim of this study is to evaluate the osseointegration of a collagen-based material Alveoprotect, suitable for socket preservations, while preserving the vestibular bone lamella. This material is intended to be used in the field of implantology for smaller bone defects. Thus, 3-mm diameter experimental cavities were carried out on the calvaria and maxilla of 18 laboratory Wistar rats. The cavities were augmented with the collagen fleece Alveoprotect or left unaugmented as a control group and half of the laboratory animals were sacrificed after two months, and the other half after four months in order to evaluate in vivo the way in which the inserted material is osseointegrated...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523292/angiogenesis-versus-arteriogenesis
#14
Anna Rizzi, Vincenzo Benagiano, Domenico Ribatti
In the vascular system, angiogenesis and arteriogenesis play a unique yet equally important role in both health and disease. Angiogenesis, the formation of new blood vessels from a preexisting vascular bed, occurs naturally during wound healing, the female menstrual cycle and pregnancy. It plays a critical role in tissue growth and repair, and is a highly controlled process that is dependent on an intricate balance of both pro-angiogenic (to stimulate) and anti-angiogenic (to negatively regulate the phenomenon) factors...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/28523167/a-novel-facilitated-negative-pressure-wound-therapy-for-thoracic-incision-infection-after-esophagectomy
#15
Zhi-Tian Wang, Jin-Lin Cao, Ping Yuan, Lu-Ming Wang, Zhe-Hao He, Wang Lv, Jian Hu
BACKGROUND: Negative-pressure wound therapy (NPWT) is the therapeutic management of traumatic soft-tissue wounds and infections. The efficacy of NPWT in the treatment of thoracic incision infection is unclear. We assess the effectiveness and safety of a novel facilitated NPWT for thoracic incision infection after esophagectomy. METHODS: Between Jan. 2013 and Mar. 2016, 380 patients underwent open esophagectomy in our department. Forty-five patients with thoracic incision infection were retrospectively reviewed...
April 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28522813/in-situ-assembly-of-ag-nanoparticles-agnps-on-porous-silkworm-cocoon-based-would-film-enhanced-antimicrobial-and-wound-healing-activity
#16
Kun Yu, Fei Lu, Qing Li, Honglei Chen, Bitao Lu, Jiawei Liu, Zhiquan Li, Fangying Dai, Dayang Wu, Guangqian Lan
Preventing wound infection and retaining an appropriate level of moisture around wounds represent the most critical issues in wound treatment. Towards these ends, special focus has been placed on Bombyx mori cocoons because the protective function of the silkworm cocoon resembles the manner in which the skin protects the human body. We have designed a facile technique to develop a novel silkworm cocoon-based wound film (SCWF) wound dressing utilizing a CaCl2-ethanol-H2O solution. To improve the anti-bacterial performance of SCWF, we have incorporated the ability of silk sericin to act as a reducing agent for the conversion of Ag(+) to Ag, yielding nanoparticles (AgNPs) linked together by peptide bonds of silkworm cocoon wound film (SCWF-AgNPs)...
May 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28521709/modulation-of-inflammatory-response-to-implanted-biomaterials-using-natural-compounds
#17
Maria Yanez, James Blanchette, Ehsan Jabbarzadeh
Tissue engineering offers a promising strategy to restore injuries resulting from trauma, infection, tumor resection, or other diseases. In spite of significant progress, the field faces a significant bottleneck; the critical need to understand and exploit the interdependencies of tissue healing, angiogenesis, and inflammation. Inherently, the balance of these interacting processes is affected by a number of injury site conditions that represent a departure from physiological environment, including reduced pH, increased concentration of free radicals, hypoglycemia, and hypoxia...
May 10, 2017: Current Pharmaceutical Design
https://www.readbyqxmd.com/read/28521574/treatment-of-recurrent-pilonidal-cysts-with-nd-yag-laser-report-of-our-experience
#18
F Dragoni, S Moretti, G Cannarozzo, P Campolmi
Purpose Surgical treatment remains the first-line therapy of pilonidal cyst but is associated with high levels of post-operative pain, adverse events and a recurrence rate of 30%. We report our experience with laser hair removal using the Nd-YAG laser for the treatment of pilonidal cyst. Materials and methods Ten patients affected by pilonidal cyst were examined and treated from October 2011 to November 2016. Treatments were carried out using the Nd-YAG laser (Deka M.E.L.A, Calenzano, Florence, Italy) at a wavelength of 1064 nm at 30-day intervals...
May 18, 2017: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/28521108/mir-301b-promotes-the-proliferation-mobility-and-epithelial-to-mesenchymal-transition-of-bladder-cancer-cells-by-targeting-egr1
#19
Lei Yan, Yan Wang, Jun Liang, Zhixin Liu, Xiaodong Sun, Kerui Cai
We aimed to investigate the role of miR-301b in the modulation of the proliferation, migration and invasion in bladder cancer (BLCA) cells. The expression of miR-301b and EGR1 (early growth response gene 1) mRNA were analyzed by qRT-PCR (quantitative real-time polymerase chain reaction). Dual-luciferase reporter gene system was used to identify the target relationship between miR-301b and EGR1. Cell proliferation, cell cycle and apoptosis were analyzed by MTT assay, colony-forming assay and flow cytometry, respectively...
May 18, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28521102/co2-delivery-to-accelerate-incisional-wound-healing-following-single-irradiation-of-near-infrared-lamp-on-the-coordinated-colloids
#20
Wei-Peng Li, Chia-Hao Su, Sheng-Jung Wang, Fu-Ju Tsai, Chun-Ting Chang, Min-Chiao Liao, Chun-Chieh Yu, Thi-Tuong Vi Tran, Chaw-Ning Lee, Wen-Tai Chiu, Tak-Wah Wong, Chen-Sheng Yeh
The traditional wound care methods include wound infection control, adequate nutritional supplements, education of changing position every 2-3 hours to avoid tissue hypoxia, vacuum assistant closure, debridement, skin graft and tissue flap. Electric current stimulation, ultrasound, laser and hydrotherapy have emerged as adjuvant therapies. However, most, if not all, of these therapies are expensive and the treatment results are variable. The development of the active methods to improve wound healing is mandatory...
May 18, 2017: ACS Nano
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