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Wound Repair

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https://www.readbyqxmd.com/read/29332187/human-bite-injuries-to-the-head-and-neck-current-trends-and-management-protocols-in-england-and-wales
#1
Glyndwr W Jenkins, Robert Isaac, Shakir Mustafa
INTRODUCTION: Human bite injuries can be challenging in their presentation to the examining physician. In a study by Merchant et al., 18% of patients presenting with a human bite injury had suffered wounds to the head and neck region. Current trends in their initial management at presentation to emergency departments throughout England and Wales will be discussed in this paper. MATERIALS AND METHOD: A postal survey was sent out to 100 A&E lead clinicians. This was followed up by telephone enquiries to improve the response rate...
January 14, 2018: Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29331377/%C3%AE-cellulin-promotes-the-proliferation-of-corneal-epithelial-stem-cells-through-the-phosphorylation-of-erk1-2
#2
Won-Yong Jeong, Hye-Young Yoo, Chan-Wha Kim
The proliferation of corneal epithelial stem cells (CESCs) is a very important process in the recovery of corneal wounds. Recent studies have shown that β-cellulin (BC) is effective in the repair of other tissues. However, its mechanism of action in corneal wound healing is not yet clear. The purpose of this study was to investigate how BC accelerates wound healing of the cornea. Here, we confirmed that the proliferation of CESCs was induced at a specific concentration (0.2, 2 and 20 ng/mL) by treatment with BC...
January 10, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29330975/emergency-inguinal-hernia-repair-comparison-of-desarda-s-versus-darning-technique
#3
Adeel Hussain, Syed Mehsam, Mansab Ali, Shahid Rasul, Sughra Parveen, Ahson Memon
BACKGROUND: Emergency inguinal hernia repair remains the commonest operation performed by general surgeons all over the world. The aim of this study was to compare the mean operative time, post-operative pain, wound infection and early recurrence between Desarda's and Darning emergency inguinal hernia repair. METHODS: This is a randomized controlled trial conducted at Jinnah Postgraduate Medical Centre, Karachi. A total of 186 patients of male gender between ages 20-60 years with incarcerated, obstructed and strangulated inguinal hernia were enrolled in the study...
October 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/29330021/ccn4-wisp1-controls-cutaneous-wound-healing-by-modulating-proliferation-migration-and-ecm-expression-in-dermal-fibroblasts-via-%C3%AE-5%C3%AE-1-and-tnf%C3%AE
#4
Mitsuaki Ono, Asuka Masaki, Azusa Maeda, Tina M Kilts, Emilio S Hara, Taishi Komori, Hai Pham, Takuo Kuboki, Marian F Young
Understanding the mechanisms that control cutaneous wound healing is crucial to successfully manage repair of damaged skin. The goal of the current study was to uncover novel extracellular matrix (ECM) components that control the wound healing process. Full thickness skin defects were created in mice and used to show CCN4 up-regulation during wound-healing as early as 1 day after surgery, suggesting a role in inflammation and subsequent dermal migration and proliferation. To determine how CCN4 could regulate wound healing we used Ccn4-KO mice and showed they had delayed wound closure accompanied by reduced expression of Col1a1 and Fn mRNA...
January 9, 2018: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29329593/targeting-ectodysplasin-promotor-by-crispr-dcas9-effector-effectively-induces-the-reprogramming-of-human-bone-marrow-derived-mesenchymal-stem-cells-into-sweat-gland-like-cells
#5
Sujing Sun, Jun Xiao, Jiahui Huo, Zhijun Geng, Kui Ma, Xiaoyan Sun, Xiaobing Fu
BACKGROUND: Patients with a deep burn injury are characterized by losing the function of perspiration and being unable to regenerate the sweat glands. Because of their easy accession, multipotency, and lower immunogenicity, bone marrow-derived mesenchymal stem cells (BM-MSCs) represent as an ideal biological source for cell therapy. The aim of this study was to identify whether targeting the promotor of ectodysplasin (EDA) by CRISPR/dCas9-effector (dCas9-E) could induce the BM-MSCs to differentiate into sweat gland-like cells (SGCs)...
January 12, 2018: Stem Cell Research & Therapy
https://www.readbyqxmd.com/read/29328541/gm-csf-ameliorates-micro-vascular-barrier-integrity-via-pericytes-derived-ang-1-in-wound-healing
#6
Min Yan, Yange Hu, Min Yao, Shisan Bao, Yong Fang
BACKGROUND: Skin wound healing involves complex coordinated interactions of cells, tissues and mediators. Maintaining microvascular barrier integrity is one of the key events for endothelial homeostasis during wound healing. Vasodilation is observed after vasoconstriction, which causes blood vessels to become porous, facilitates leukocyte infiltration and aids angiogenesis at the wound-area, post-injury. Eventually, vessel integrity has to be re-established for vascular maturation. Numerous studies have found that granulocyte macrophage colony-stimulating factor (GM-CSF) accelerates wound healing by inducing recruitment of repair cells into the injury area and releases of cytokines...
January 12, 2018: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29327704/emerging-nonmetabolic-functions-of-skin-fat
#7
REVIEW
Christian F Guerrero-Juarez, Maksim V Plikus
Although the major white adipose depots evolved primarily to store energy, secrete hormones and thermo-insulate the body, multiple secondary depots developed additional specialized and unconventional functions. Unlike any other fat tissue, dermal white adipose tissue (dWAT) evolved a large repertoire of novel features that are central to skin physiology, which we discuss in this Review. dWAT exists in close proximity to hair follicles, the principal appendages of the skin that periodically grow new hairs. Responding to multiple hair-derived signals, dWAT becomes closely connected to cycling hair follicles and periodically cycles itself...
January 12, 2018: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29327576/is-evar-a-durable-solution-indications-for-re-interventions
#8
Louise de la Motte, Mårten Falkenberg, Mark J Koelemay, Lars Lönn
AIM: Indications for re-interventions after endovascular aneurysm repair (EVAR), as well as their occurrence in number and time, are important to establish in order to optimize patient selection, post-procedure surveillance and also to guide improvements in endograft designs. The aim of this report was to present an overview of current data on re-interventions after elective EVAR. METHODS: Qualitative review of studies reporting on re-interventions after elective EVAR, identified by a systematic literature search in MEDLINE, EMBASE and the Cochrane Library for publications from 2010 to 13th of November 2017...
January 9, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29327559/-combined-surgical-approaches-in-the-treatment-of-complex-tibial-plateau-fractures
#9
Guang-Hua Yuan, Xiao Zheng, Kang Chen
OBJECTIVE: To explore the early clinical efficacy of a posteromedial inverted "L" shape approach combined an assisted antero lateral assisted approach for the treatment of complex fractures of tibial plateau. METHODS: From March 2011 to June 2014, the posteromedial inverted "L" shape approach combined with the antero lateral assisted approach in the treatment of Schatzker type IV, V, VI tibial plateau fracture were performed in 34 cases. There were 23 males and 11 females, ranging in age from18 to 67 years old, averaged 34...
January 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29326127/skill-sets-required-for-the-management-of-military-head-face-and-neck-trauma-a-multidisciplinary-consensus-statement
#10
John Breeze, R Blanch, J Baden, A M Monaghan, D Evriviades, S E Harrisson, S Roberts, A Gibson, N MacKenzie, D Baxter, A J Gibbons, S Heppell, J G Combes, R F Rickard
INTRODUCTION: The evolution of medical practice is resulting in increasing subspecialisation, with head, face and neck (HFN) trauma in a civilian environment usually managed by a combination of surgical specialties working as a team. However, the full combination of HFN specialties commonly available in the NHS may not be available in future UK military-led operations, necessitating the identification of a group of skill sets that could be delivered by one or more deployed surgeons. METHOD: A systematic review was undertaken to identify those surgical procedures performed to treat acute military head, face, neck and eye trauma...
January 10, 2018: Journal of the Royal Army Medical Corps
https://www.readbyqxmd.com/read/29325984/minimally-invasive-repair-of-pectus-carinatum
#11
Mustafa Yuksel, Tunc Lacin, Nezih Onur Ermerak, Esra Yamansavci Sirzai, Bihter Sayan
BACKGROUND: The second most common deformity of the anterior chest wall, pectus carinatum, is a diverse deformity that has been largely managed using open techniques. This study reviews clinical experience with a newly designed bar for minimally invasive repair of pectus carinatum. METHODS: We reviewed the records of all patients recorded in our Chest Wall Deformities Clinical Database. Between January 2006 and November 2016, minimally invasive repair of pectus carinatum was performed in 172 patients...
January 9, 2018: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/29325354/-excision-of-giant-desmoid-in-the-abdominal-wall-method-of-abdominal-wall-reconstruction-and-follow-up-of-long-termed-effect
#12
Y Fei, J Y Li
Objective: To explore the ideal procedure of excision and repair for giant desmoid in the abdominal wall and long-termed follow-up results. Methods: Clinical and follow-up data of 24 patients with giant desmoid in the abdominal wall underwent radical removal and immediate abdominal wall reconstruction in Diagnostic and Therapeutic Center of Hernia and Abdominal Wall Diseases, First Affiliated Hospital of People's Liberation Army General Hospital from October 2006 to October 2016 were analyzed retrospectively...
January 1, 2018: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/29325193/stabilization-of-olecranon-fractures-by-tension-band-wiring-or-plate-osteosynthesis-a-retrospective-study-of-41-cases
#13
Alexandre Fournet, Jean-François Boursier, Solène Corbeau, Adeline Decambron, Véronique Viateau, Pascal Fayolle, Anne-Sophie Bedu, Dimitri Leperlier, Mathieu Manassero
OBJECTIVES:  This article aimed to describe olecranon fracture in dogs and cats and their stabilization with tension band wiring or plate osteosynthesis, and to evaluate complications associated with each technique. METHODS:  Medical records of cats and dogs that had been surgically treated for olecranon fractures with either tension band wiring or plate osteosynthesis were retrospectively reviewed. The surgical technique, complications and long-term outcomes were assessed...
January 2018: Veterinary and Comparative Orthopaedics and Traumatology: V.C.O.T
https://www.readbyqxmd.com/read/29320729/corneal-committed-cells-restore-the-stem-cell-pool-and-tissue-boundary-following-injury
#14
Waseem Nasser, Aya Amitai-Lange, Despina Soteriou, Rana Hanna, Beatrice Tiosano, Yaron Fuchs, Ruby Shalom-Feuerstein
During morphogenesis, preserving tissue boundaries is essential for cell fate regulation. While embryonic tissues possess high plasticity and repair ability, the questions of whether and how adult tissues cope with acute stem cell (SC) loss or boundary disruption have remained unanswered. Here, we report that K15-GFP transgene labels the murine corneal epithelial boundary and SC niche known as the limbus. K15-GFP+ basal cells expressed SC markers and were located at the corneal regeneration site, as evident by lineage tracing...
January 9, 2018: Cell Reports
https://www.readbyqxmd.com/read/29320588/a-guide-to-tissue-engineered-skin-substitutes
#15
Penelope J Kallis, Adam J Friedman, Hadar Lev-Tov
<p>Wounds that exhibit delayed healing have a tremendous impact on health care expenditures and place patients at serious risk for severe complications including death. The healing of a chronic wound requires the restoration of multiple factors that normally work in concert to repair the damaged skin barrier. Skin substitutes have shown great promise for use as adjunctive therapies for refractory wounds by providing cells, soluble mediators, and extracellular matrix materials needed to stimulate healing...
January 1, 2018: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/29319804/effects-of-agricultural-organic-dusts-on-human-lung-resident-mesenchymal-stem-stromal-cell-function
#16
Tara M Nordgren, Kristina L Bailey, Art J Heires, Dawn Katafiasz, Debra J Romberger
Agricultural organic dust exposures trigger harmful airway inflammation, and workers experiencing repetitive dust exposures are at increased risk for lung disease. Mesenchymal stem/stromal cells (MSC) regulate wound repair processes in the lung, and may contribute to either pro-resolution or pro-fibrotic lung responses. It is unknown how organic dust exposures alter lung-resident MSC activation and pro-inflammatory versus pro-repair programs in the lung. To address this gap in knowledge, we isolated human lung-resident MSC from lung tissue...
January 8, 2018: Toxicological Sciences: An Official Journal of the Society of Toxicology
https://www.readbyqxmd.com/read/29319164/microvesicles-intercellular-messengers-in-cutaneous-wound-healing
#17
REVIEW
Alexandra Laberge, Syrine Arif, Véronique J Moulin
Longtime considered as inert cellular debris, microvesicles (MVs) have gained tremendous attention in the past decade. MVs are 100-1000 nm vesicles released into the extracellular environment by the outward budding and fission of the plasma membrane. They are now regarded as essential mediators of cell-to-cell interactions in a variety of physiological and pathological processes. In this review, we discuss the increasingly recognized contribution of MVs to the biology of wound healing. We highlight current concepts relating to the biogenesis and mode of action of MVs...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29319160/macrophage-plasticity-polarization-and-function-in-health-and-disease
#18
REVIEW
Abbas Shapouri Moghaddam, Saeed Mohammadian, Hossein Vazini, Mahdi Taghadosi, Seyed-Alireza Esmaeili, Fatemeh Mardani, Bita Seifi, Asadollah Mohammadi, Jalil Tavakol Afshari, Amirhossein Sahebkar
Macrophages are heterogeneous and their phenotype and functions are regulated by the surrounding micro-environment. Macrophages commonly exist in two distinct subsets: 1) Classically activated or M1 macrophages, which are pro-inflammatory and polarized by lipopolysaccharide (LPS) either alone or in association with Th1 cytokines such as IFN-γ, GM-CSF and produce pro-inflammatory cytokines such as interleukin-1β (IL-1β), IL-6, IL-12, IL-23 and TNF-α, and 2) Alternatively activated or M2 macrophages, which are anti-inflammatory and immunoregulatory and polarized by Th2 cytokines such as IL-4 and IL-13 and produce anti-inflammatory cytokines such as IL-10 and TGF-β...
January 10, 2018: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/29318884/inhibition-of-epithelial-mesenchymal-transition-and-tissue-regeneration-by-waterborne-titanium-dioxide-nanoparticles
#19
Xiaojiao Li, Lele Song, Xingjie Hu, Chang Liu, Jiye Shi, Hui Wang, Lixing Zhan, Haiyun Song
Titanium dioxide nanoparticles (TiO2NPs) are among the most widely manufactured nanomaterials with broad applications in food industry, cosmetics and medicine. Whereas the toxicity of TiO2NPs at high doses has been extensively explored, potential health risks of TiO2NPs exposure at non-toxic concentrations remain poorly understood. Epithelial-mesenchymal transition (EMT) plays pivotal roles in a diversity of physiological and pathological processes including tissue regeneration and cancer metastasis. In this study, we find that cellular uptake of TiO2NPs inhibits EMT-mediated cell remodeling and cell migration without exhibiting cytotoxicity...
January 10, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29317265/wound-regeneration-deficit-in-rats-correlates-with-low-morphogenetic-potential-and-distinct-transcriptome-profile-of-epidermis
#20
Christian F Guerrero-Juarez, Aliaksandr A Astrowski, Rabi Murad, Christina T Dang, Vera O Shatrova, Aksana Astrowskaja, Chae Ho Lim, Raul Ramos, Xiaojie Wang, Yuchen Liu, Hye-Lim Lee, Kim T Pham, Tsai-Ching Hsi, Ji Won Oh, Daniel Crocker, Ali Mortazavi, Mayumi Ito, Maksim V Plikus
Large excisional wounds in mice prominently regenerate new hair follicles (HFs) and fat, yet humans are deficient for this regenerative behavior. Currently, wound-induced regeneration remains a clinically desirable, but only partially understood phenomenon. We show that large excisional wounds in rats, across seven strains fail to regenerate new HFs. We compared wound transcriptomes between mice and rats at the time of scab detachment, which coincides with the onset of HF regeneration in mice. In both species, wound dermis and epidermis share core dermal and epidermal transcriptional programs respectively, yet prominent inter-species differences exist...
January 6, 2018: Journal of Investigative Dermatology
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