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https://www.readbyqxmd.com/read/28654850/wound-management-with-negative-pressure-wound-therapy-in-postoperative-infection-after-open-reconstruction-of-chronic-achilles-tendon-rupture
#1
Isaku Saku, Shotaro Kanda, Toshihiro Saito, Takashi Fukushima, Toru Akiyama
INTRODUCTION: Deep infection after reconstruction of chronic Achilles tendon rupture is a major and intractable complication. CASE REPORT: We report a case of late deep infection following a surgery for chronic Achilles tendon rupture, and its simple and successful treatment with negative pressure wound therapy (NPWT). Six months following the reconstruction of chronic Achilles tendon rupture, a deep infection developed and reconstructed part of the tendon ruptured again...
June 17, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28654473/regenerative-rehabilitation-combining-stem-cell-therapies-and-activity-dependent-stimulation
#2
Chet T Moritz, Fabrisia Ambrosio
The number of clinical trials in regenerative medicine is burgeoning, and stem cell/tissue engineering technologies hold the possibility of becoming the standard of care for a multitude of diseases and injuries. Advances in regenerative biology reveal novel molecular and cellular targets, with potential to optimize tissue healing and functional recovery, thereby refining rehabilitation clinical practice. The purpose of this review is to (1) highlight the potential for synergy between the fields of regenerative medicine and rehabilitation, a convergence of disciplines known as regenerative rehabilitation; (2) provide translational examples of regenerative rehabilitation within the context of neuromuscular injuries and diseases; and (3) offer recommendations for ways to leverage activity dependence via combined therapy and technology, with the goal of enhancing long-term recovery...
July 2017: Pediatric Physical Therapy
https://www.readbyqxmd.com/read/28654020/effects-of-non-starch-polysaccharides-on-inflammatory-bowel-disease
#3
REVIEW
Ying Nie, Qinlu Lin, Feijun Luo
The incidence of inflammatory bowel disease (IBD) has increased considerably over the past few decades. In the present review, we discuss several disadvantages existing in the treatment of IBD and current understandings of the structures, sources, and natures of various kinds of non-starch polysaccharides (NSPs). Available evidences for the use of different sources of NSPs in IBD treatment both in vitro and in vivo are analyzed, including glucan from oat bran, mushroom, seaweed, pectin, gum, prebiotics, etc...
June 27, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28653443/stem-cell-derived-extracellular-vesicles-as-a-novel-potential-therapeutic-tool-for-tissue-repair
#4
EDITORIAL
Bi Chen, Qing Li, Bizeng Zhao, Yang Wang
Stem cells, with their therapeutic potential in tissue repair and regeneration, have been widely used in translational medicine. Recent evidence suggests that the beneficial effects are mediated largely by their paracrine actions rather than the engraftment and differentiation at the injured sites. Extracellular vesicles (EVs), actively released from cells, play important roles in cell-to-cell communication and display multiple functions in tissue regeneration. In this present report, we will briefly review the current knowledge related to the therapeutic potential of EVs, particularly stem cell or progenitor cell-derived ones for promoting tissue repair and regeneration, and focus on the restorative properties of exosomes/microvesicles in cutaneous wound healing, bone regeneration, hindlimb ischemia, and vascular injury repair...
June 27, 2017: Stem Cells Translational Medicine
https://www.readbyqxmd.com/read/28653294/electrospun-plga-nanofiber-scaffolds-release-ibuprofen-faster-and-degrade-slower-after-in-vivo-implantation
#5
Corinne N Riggin, Feini Qu, Dong Hwa Kim, Julianne Huegel, David R Steinberg, Andrew F Kuntz, Louis J Soslowsky, Robert L Mauck, Joseph Bernstein
While delayed delivery of non-steroidal anti-inflammatory drugs (NSAIDs) has been associated with improved tendon healing, early delivery has been associated with impaired healing. Therefore, NSAID use is appropriate only if the dose, timing, and mode of delivery relieves pain but does not impede tissue repair. Because delivery parameters can be controlled using drug-eluting nanofibrous scaffolds, our objective was to develop a scaffold for local controlled release of ibuprofen (IBP), and characterize the release profile and degradation both in vitro and in vivo...
June 26, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28652146/downregulation-of-pkc%C3%AE-pard3-pard6b-is-responsible-for-lung-adenocarcinoma-cell-emt-and-invasion
#6
Qiyuan Zhou, Jingbo Dai, Tianji Chen, Laura A Dada, Xu Zhang, Wei Zhang, Malcolm M DeCamp, Robert A Winn, Jacob I Sznajder, Guofei Zhou
Atypical protein kinase C ζ (PKCζ) forms an apico-basal polarity complex with Partitioning Defective (Pard) 3 and Pard6 to regulate normal epithelial cell apico-basolateral polarization. The dissociation of the PKCζ/Pard3/Pard6 complex is essential for the disassembly of the tight/adherens junction and epithelial-mesenchymal transition (EMT) that is critical for tumor spreading. Loss of cell polarity and epithelial organization is strongly correlated with malignancy and tumor progression in some other cancer types...
June 23, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28652071/advances-in-biomaterials-for-preventing-tissue-adhesion
#7
REVIEW
Wei Wu, Ruoyu Cheng, José das Neves, Jincheng Tang, Junyuan Xiao, Qing Ni, Xinnong Liu, Guoqing Pan, Dechun Li, Wenguo Cui, Bruno Sarmento
Adhesion is one of the most common postsurgical complications, occurring simultaneously as the damaged tissue heals. Accompanied by symptoms such as inflammation, pain and even dyskinesia in particular circumstances, tissue adhesion has substantially compromised the quality of life of patients. Instead of passive treatment, which involves high cost and prolonged hospital stay, active intervention to prevent the adhesion from happening has been accepted as the optimized strategy against this complication. Herein, this paper will cover not only the mechanism of adhesion forming, but also the biomaterials and medicines used in its prevention...
June 23, 2017: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/28650945/treatment-approach-for-infection-of-healed-fractures-after-internal-fixation
#8
Joshua M Lawrenz, Salvatore J Frangiamore, Ajinkya A Rane, W Alex Cantrell, Heather A Vallier
OBJECTIVE: To review the efficacy of a treatment approach for patients with infection and colonized implants after open reduction and internal fixation of fractures. DESIGN: Retrospective case series. SETTING: Level one trauma center. PATIENTS: Twenty patients were treated for wound infection with colonized implants after open reduction and internal fixation. INTERVENTION: Surgical debridement, removal of implants and a short post-operative oral antibiotic course...
June 15, 2017: Journal of Orthopaedic Trauma
https://www.readbyqxmd.com/read/28650705/current-and-emerging-treatments-for-postsurgical-cleft-lip-scarring-effectiveness-and-mechanisms
#9
E Papathanasiou, C A Trotman, A R Scott, T E Van Dyke
Cleft lip with or without cleft palate is the most common congenital malformation of the head and the third-most common birth defect. Surgical repair of the lip is the only treatment and is usually performed during the first year of life. Hypertrophic scar (HTS) formation is a frequent postoperative complication that impairs soft tissue form, function, or movement. Multiple lip revision operations are often required throughout childhood, attempting to optimize aesthetics and function. The mechanisms guiding HTS formation are multifactorial and complex...
June 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/28650114/the-effect-of-adhesives-on-inflammatory-immune-markers-during-renal-injury-healing
#10
José Miguel Lloris-Carsí, Carlos Barrios, Beatriz Prieto-Moure, José Miguel Lloris-Cejalvo, Dolores Cejalvo-Lapeña
Renal injury is common in abdominal trauma. Adhesives and sealants can be used to repair and preserve damaged organs. We describe the effect of three biomaterial treatments (TachoSil, GelitaSpon, and Adhflex) on injured renal tissue. Renal traumatic injuries were experimentally induced in male Wistar rats (n = 90) using a punch. Animals were divided into five groups: (1) sham noninjured (n = 3) and punch injury groups; (2) nontreated (n = 6); (3) TachoSil (n = 27); (4) GelitaSpon (n = 27); and (5) Adhflex (n = 27)...
June 26, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28650026/the-effect-of-pegylated-hollow-gold-nanoparticles-on-stem-cell-migration-potential-application-in-tissue-regeneration
#11
Maria Del Mar Encabo-Berzosa, Maria Sancho-Albero, Alejandra Crespo, Vanesa Andreu, Victor Sebastian, Silvia Irusta, Manuel Arruebo, Pilar Martín-Duque, Jesus Santamaria
Mesenchymal stem cells (MSCs) not only can be differentiated into different cell types but also have tropism towards injured or inflamed tissues serving as repair cells. Here we have demonstrated that MSCs containing gold nanoparticles (GNPs) whose surface has been functionalized with PEG show accelerated cell migration, successful scaffold colonization and regeneration. We report the impact of GNPs on the migration (by the wound healing assay), and proliferation (by flow cytometry analysis and by the detection of metabolic mitochondrial activity) on the behaviour of different cell lines including MSCs, HeLa cells, and human dermal fibroblasts...
June 26, 2017: Nanoscale
https://www.readbyqxmd.com/read/28649630/towards-human-exploration-of-space-the-theseus-review-series-on-muscle-and-bone-research-priorities
#12
Thomas Lang, Jack J W A Van Loon, Susan Bloomfield, Laurence Vico, Angele Chopard, Joern Rittweger, Antonios Kyparos, Dieter Blottner, Ilkka Vuori, Rupert Gerzer, Peter R Cavanagh
Without effective countermeasures, the musculoskeletal system is altered by the microgravity environment of long-duration spaceflight, resulting in atrophy of bone and muscle tissue, as well as in deficits in the function of cartilage, tendons, and vertebral disks. While inflight countermeasures implemented on the International Space Station have evidenced reduction of bone and muscle loss on low-Earth orbit missions of several months in length, important knowledge gaps must be addressed in order to develop effective strategies for managing human musculoskeletal health on exploration class missions well beyond Earth orbit...
2017: NPJ Microgravity
https://www.readbyqxmd.com/read/28648944/tubulin-beta-3-and-4-are-involved-in-the-generation-of-early-fibrotic-stages
#13
Marta E Wawro, Katarzyna Sobierajska, Wojciech M Ciszewski, Waldemar Wagner, Marta Frontczak, Katarzyna Wieczorek, Jolanta Niewiarowska
The endothelial-mesenchymal transition (EndMT) is a fundamental cellular mechanism that occurs under both physiological and pathological conditions and includes the fibrotic stages of numerous organs, namely, the skin, kidneys, heart, lungs and liver. Endothelial cells that undergo EndMT are one of the main source of (myo)fibroblasts in fibrotic tissues. A critical step in cellular transdifferentiation is morphological change, which is engineered by the reorganization of cytoskeletal elements such as microtubules...
June 22, 2017: Cellular Signalling
https://www.readbyqxmd.com/read/28648043/-advances-in-the-research-of-application-of-vacuum-assisted-closure-in-wound-healing-and-its-mechanism
#14
S L Xie, G H Guo, D H Min
As a new generation of negative pressure drainage technology, vacuum-assisted closure (VAC) can provide stable and persistent negative pressure, and there are several modes to choose from. VAC plays an important role in closing wounds quickly, controlling infection, promoting angiogenesis, increasing blood flow, and promoting granulation tissue growth of wounds. It is now widely applied in all kinds of acute, chronic, and special wounds in clinic with good therapeutic results. However, we need to pay attention to contraindications and complications of VAC when it is used, avoiding secondary damage due to improper treatment...
June 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28647849/the-clinical-outcomes-of-using-a-new-cross-linked-hyaluronan-gel-in-endoscopic-frontal-sinus-surgery
#15
Teoman Dal, Seçil Bahar
In endoscopic sinus surgery (ESS) synechiae formation and ostial stenosis are frequently encountered. This is not uncommon after frontal recess and ostium interventions due to the narrow recess and difficult anatomy of the region. The goal of this study is to evaluate the efficacy of the new cross-linked hyaluronan gel-PureRegen(®) Gel Sinus-on wound healing and synechiae prevention in endoscopic frontal sinus surgery. The study consists of two groups of patients who underwent ESS, including frontal sinus surgery...
June 24, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/28647733/role-of-mesenchymal-stem-cells-in-bone-regenerative-medicine-what-is-the-evidence
#16
Ahmad Oryan, Amir Kamali, Ali Moshiri, Mohamadreza Baghaban Eslaminejad
Healing and regeneration of bone injuries, particularly those that are associated with large bone defects, are a complicated process. There is growing interest in the application of osteoinductive and osteogenic growth factors and mesenchymal stem cells (MSCs) in order to significantly improve bone repair and regeneration. MSCs are multipotent stromal stem cells that can be harvested from many different sources and differentiated into a variety of cell types, such as preosteogenic chondroblasts and osteoblasts...
June 24, 2017: Cells, Tissues, Organs
https://www.readbyqxmd.com/read/28647583/the-temporal-expression-of-adipokines-during-spinal-fusion
#17
Sohrab Virk, Alicia L Bertone, Hayam Hamaz Hussein, Jeffrey M Toth, Mari Kaido, Safdar Khan
BACKGROUND CONTEXT: Adipokines are secreted by white adipose tissue and have been associated with fracture healing. Our goal was to report the temporal expression of adipokines during spinal fusion in an established rabbit model. PURPOSE: Our goal was to report the temporal expression of adipokines during spinal fusion in an established rabbit model. STUDY DESIGN: Laboratory animal model METHODS: New Zealand white rabbits were assigned to either sham surgery (n=2), unilateral posterior spinal fusion (n=14) or bilateral posterior spinal fusion (n=14)...
June 21, 2017: Spine Journal: Official Journal of the North American Spine Society
https://www.readbyqxmd.com/read/28647408/identification-and-expression-characterization-of-wnta-during-intestinal-regeneration-in-the-sea-cucumber-apostichopus-japonicus
#18
Xiaoni Li, Lina Sun, Hongsheng Yang, Libin Zhang, Ting Miao, Lili Xing, Da Huo
Wnt genes encode secreted glycoproteins that act as signaling molecules; these molecules direct cell proliferation, migration, differentiation and survival during animal development, maintenance of homeostasis and regeneration. At present, although the regeneration mechanism in Apostichopus japonicus has been studied, there is a little research on the Wnt signaling pathway in A. japonicus. To understand the potential role of the Wnt signaling pathway in A. japonicus, we cloned and sequenced the WntA gene in A...
June 21, 2017: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
https://www.readbyqxmd.com/read/28646927/hoxb7-accelerates-the-malignant-progression-of-hepatocellular-carcinoma-by-promoting-stemness-and-epithelial-mesenchymal-transition
#19
Hong-Bo Huan, Da-Peng Yang, Xu-Dong Wen, Xue-Jiao Chen, Liang Zhang, Li-Li Wu, Ping Bie, Feng Xia
BACKGROUND: Homeobox B7 (HOXB7) has been identified associated with poor prognosis of hepatocellular carcinoma (HCC). However, the specific mechanism by which HOXB7 promotes the malignant progression of HCC remains to be determined. METHODS: Immunohistochemistry (IHC) was used to detect the expression level of HOXB7 in 77-paired HCC tissue samples, and the correlation between HOXB7 and HCC prognosis was assessed. The location of HOXB7 was confirmed by immunofluorescence...
June 24, 2017: Journal of Experimental & Clinical Cancer Research: CR
https://www.readbyqxmd.com/read/28646685/a-highly-adhesive-and-naturally-derived-sealant
#20
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
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