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Tissue healing

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https://www.readbyqxmd.com/read/28339434/platelet-rich-plasma-in-musculoskeletal-pathology-a-necessary-rescue-or-a-lost-cause
#1
Annu Navani, Gang Li, Joshua Chrystal
BACKGROUND: Platelet rich plasma (PRP) has been used for decades to facilitate surgical tissue repair; therefore, the current trend of percutaneously injecting PRP to theoretically enhance tissue regeneration and repair is a logical progression. Applications include treatment of osteoarthritis, tendinopathy, chondropathy, acute and chronic soft tissue injuries, muscle or ligament tear, as well as enhancement of healing after bone or tissue reconstruction. However, there is limited evidence to support the use of PRP in the abovementioned conditions...
March 2017: Pain Physician
https://www.readbyqxmd.com/read/28339014/effects-of-remote-ischemic-post%C3%A2-conditioning-on-fracture-healing-in-rats
#2
Meng Zhou, Shibao Lu, Guowei Lu, Jiang Huang, Limin Liu, Shuai An, Zheng Li, Huiliang Shen
Remote ischemic post‑conditioning (RIPC) is an established method to activate the hypoxia‑inducible factor‑1α (HIF‑1α) pathway, which is involved in the impairment of fracture healing. However, the role of RIPC in fracture healing remains to be fully elucidated. In the present study, rats received fractures and were divided into two groups: Control and RIPC, in which hind limb occlusion was performed. Rats were sacrificed at 7, 14, 28 and 42 days subsequent to tibial fracture. Micro‑computed tomography was performed to measure healing of the bone tissue and biomechanical testing was used to test mechanical strength...
March 22, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28339010/effects-of-different-cellulose-membranes-regenerated-from-styela-clava-tunics-on-wound-healing
#3
Sung Hwa Song, Keum Yong Seong, Ji Eun Kim, Jun Go, Eun Kyoung Koh, Ji Eun Sung, Hong Joo Son, Young Jin Jung, Hye Sung Kim, Jin Tae Hong, Dae Youn Hwang
The aim of this study was to investigate the therapeutic effects of three different cellulose membranes (CMs) manufactured from Styela clava tunics (SCTs) on the healing of cutaneous wounds. We examined the physical properties and therapeutic effects of three CMs regenerated from SCTs (referred to as SCT‑ CMs), including normal CM (SCT‑CM), freeze-dried SCT‑CM (FSCT‑CM) and sodium alginate-supplemented SCT‑CM (ASCT‑CM) on skin regeneration and angiogenesis using Sprague-Dawley (SD) rats. FSCT‑CM exhibited an outstanding interlayered structure, a high tensile strength (1...
March 20, 2017: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/28338494/combined-knockdown-of-d-dopachrome-tautomerase-and-migration-inhibitory-factor-inhibits-the-proliferation-migration-and-invasion-in-human-cervical-cancer
#4
Qingying Wang, Yingze Wei, Jiawen Zhang
OBJECTIVE: D-dopachrome tautomerase (D-DT) is a homologue of macrophage migration inhibitory factor (MIF) with similar functions. However, the possible biological roles of D-DT in cervical cancer remain unknown so far. METHODS: D-dopachrome tautomerase was assessed by immunohistochemistry in 83 cervical cancer and 31 normal cervix tissues. The stable knockdown of D-DT and MIF by lentivirus-delivered short hairpin RNA was established, and tumor growth was examined in vitro and in vivo...
March 23, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28338428/a-surgical-device-to-study-the-efficacy-of-bioengineered-skin-substitutes-in-mice-wound-healing-models
#5
Marc G Jeschke, Ali-Reza Sadri, Cassandra Belo, Saeid Amini-Nik
Due to the poor regenerative capacity of adult mammalian skin, there is a need to develop effective skin substitutes for promoting skin regeneration after a severe wound. However, the complexity of skin biology has made it difficult to enable perfect regeneration of skin. Thus, animal models are being used to test potential skin substitutes. Murine models are valuable but their healing process involves dermal contraction. We have developed a device called a dome that is able to eliminate the contraction effect of rodent skin while simultaneously housing a bioengineered skin graft...
March 23, 2017: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/28338421/harnessing-the-osteogenicity-of-in-vitro-stem-cell-derived-mineralized-extracellular-matrix-as-3d-biotemplate-to-guide-bone-regeneration
#6
Yoke Chin Chai, Johanna Bolander, Ioannis Papantoniou, Jennifer Patterson, Jef Vleugels, Jan Schrooten, Frank P Luyten
Advanced biomaterials that are capable of guiding robust bone regeneration are highly demanded for translational therapy of bone defects or bone augmentation in clinics. One of the strategic approaches is to produce tissue engineering (TE) constructs that mediate bone regeneration by recapitulating the natural bone formation or healing process. In this study, we aimed at producing devitalized mineralized carriers with augmented bone forming capacity via a modified culture protocol (i.e., culture conditions with high calcium and/or phosphate concentrations) that first promotes cell growth and, subsequently, mineralized extracellular matrix (ECM) deposition by human periosteum-derived osteoprogenitor cells (hPDCs) on additive manufactured three-dimensional (3D) porous titanium (Ti)-based scaffolds...
March 24, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28338216/the-diversified-function-and-potential-therapy-of-ectopic-olfactory-receptors-in-non-olfactory-tissues
#7
REVIEW
Zhe Chen, Hong Zhao, Nian Fu, Linxi Chen
Olfactory receptors (ORs) are mainly distributed in olfactory neurons and play a key role in detecting volatile odorants, eventually resulting in the production of smell perception. Recently, it is also reported that ORs are expressed in non-olfactory tissues including heart, lung, sperm, skin and cancerous tissues. Interestingly, ectopic ORs are associated with the development of diseases in non-olfactory tissues. For instance, ectopic ORs initiate the hypoxic ventilatory responses and maintain the oxygen homeostasis of breathing in the carotid body when oxygen levels decline...
March 24, 2017: Journal of Cellular Physiology
https://www.readbyqxmd.com/read/28338194/lncrna-neat1-is-closely-related-with-progression-of-breast-cancer-via-promoting-proliferation-and-emt
#8
M Zhang, W-B Wu, Z-W Wang, X-H Wang
OBJECTIVE: Breast cancer (BC) is one of the most common cancers in females. Abnormal proliferation and metastasis are key reasons that cause mortality in BC patients. More and more evidence showed that lncRNA played an important role in the BC development, but the mechanism was not well established. PATIENTS AND METHODS: The expression of lncRNA NEAT1 was detected in 40 BC patients by qRT-PCR technology. MTT and Wound Healing assays were applied to detect the effect of lncRNA NEAT1 in proliferation and metastasis in BC...
March 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28338078/the-transmembrane-serine-protease-hat-like-4-is-important-for-epidermal-barrier-function-to-prevent-body-fluid-loss
#9
Zhiwei Zhang, Yae Hu, Ruhong Yan, Liang Dong, Yizhi Jiang, Zhichao Zhou, Meng Liu, Tiantian Zhou, Ningzheng Dong, Qingyu Wu
Membrane-bound proteases are essential for epidermal integrity. Human airway trypsin-like protease 4 (HAT-L4) is a type II transmembrane serine protease. Currently, its biochemical property, cellular distribution and physiological function remain unknown. Here we examined HAT-L4 expression and function in vitro and in vivo. In Western analysis, HAT-L4 expressed in transfected CHO cells appeared as a 48-kDa protein. Flow cytometry confirmed HAT-L4 expression on the cell surface with the expected membrane topology...
March 24, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28337895/use-of-supercharged-cover-screw-as-static-magnetic-field-generator-for-bone-healing-1st-part-in-vitro-enhancement-of-osteoblast-like-cell-differentiation
#10
F Bambini, A Santarelli, A Putignano, M Procaccini, G Orsini, L Memè, D Sartini, M Emanuelli, L Lo Muzio
Since 1979, Pulsed electromagnetic fields (PEMFs) have been approved by the Food and Drug Administration as an effective method in the treatment of non-unions. As well as PEMFs, also static magnetic fields (SMFs) have been widely investigated in orthopaedic studies. Even if the exact mechanism of action is not well understood, a large number of studies showed specific effects both at cellular and tissue levels. As bone fracture healing and osseointegration share the same biological events, the application of magnetic field stimulation in order to facilitate the osseointegration process has been suggested...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28337859/self-healable-suparmolecular-hydrogel-formed-by-nor-seco-cucurbit-10-uril-as-a-supramolecular-crosslinker
#11
Kyeng Min Park, Joon Ho Roh, Gihyun Sung, James Murray, Kimoon Kim
A supramolecular hydrogel was formed by a simple mixing of solutions of nor-seco-cucurbit[10]uril (NS-CB[10]) and adamantylamine terminated-4 armed polyethyleneglyol (AdA-4-arm-PEG). In the formation of the hydrogel, NS-CB[10] acted as a noncovalent crosslinker to form a ternary complex with two AdA moieties. The dynamic and selective nature of the host-guest interaction between NS-CB[10] and AdA enabled the supramolecular hydrogel to rapidly recover its physical properties after it was damaged. In addition, the recovered hydrogel showed sustained physical properties with negligible differences from those of the pristine material, even after multiple self-healing cycles...
March 24, 2017: Chemistry, An Asian Journal
https://www.readbyqxmd.com/read/28337854/silk-fibroin-biomaterial-shows-safe-and-effective-wound-healing-in-animal-models-and-a-randomized-controlled-clinical-trial
#12
Wei Zhang, Longkun Chen, Jialin Chen, Lingshuang Wang, Xuexian Gui, Jisheng Ran, Guowei Xu, Hongshi Zhao, Mengfeng Zeng, Junfeng Ji, Li Qian, Jianda Zhou, Hongwei Ouyang, Xiaohui Zou
Due to its excellent biological and mechanical properties, silk fibroin has been intensively explored for tissue engineering and regenerative medicine applications. However, lack of translational evidence has hampered its clinical application for tissue repair. Here a silk fibroin film is developed and its translational potential is investigated for skin repair by performing comprehensive preclinical and clinical studies to fully evaluate its safety and effectiveness. The silk fibroin film fabricated using all green chemistry approaches demonstrates remarkable characteristics, including transmittance, fluid handling capacity, moisture vapor permeability, waterproofness, bacterial barrier properties, and biocompatibility...
March 24, 2017: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/28337380/microrna-122-inhibits-proliferation-and-invasion-in-gastric-cancer-by-targeting-creb1
#13
Min Rao, Yonggang Zhu, Yinan Zhou, Xiaoxia Cong, Li Feng
MicroRNA-122 (miR-122) has been implicated in tumor development and progression in various types of cancers. However, the biological function and regulatory mechanisms of miR-122 in gastric cancer (GC) remain largely unknown. We aimed to determine the biological role and underlying mechanism of miR-122 in GC. Real time quantitative RT-PCR (qRT-PCR) was performed to detect the expression of miR-122 in GC tissues and cell lines. CCK8, wound healing, and transwell assays were conducted to determine the effect of miR-122 on cell proliferation, migration, and invasion, respectively...
2017: American Journal of Cancer Research
https://www.readbyqxmd.com/read/28337286/lps-induces-huvec-angiogenesis-in-vitro-through-mir-146a-mediated-tgf-%C3%AE-1-inhibition
#14
Yize Li, Huayu Zhu, Xu Wei, Heng Li, Zhicao Yu, Hongmei Zhang, Wenchao Liu
Angiogenesis is an essential process for tissue growth and embryo development. However, inflammation, abnormal wound healing, vascular diseases, and tumor development and progression can result from inappropriate angiogenesis. Lipopolysaccharide (LPS) can activate various cells and alter endothelium function and angiogenesis. This study investigated the underlying molecular events involved in LPS-induced angiogenesis and revealed a novel strategy for controlling abnormal angiogenesis. LPS treatment promoted wound healing and tube formation in human umbilical vein endothelial cell (HUVEC) cultures and induced their expression of miR-146a...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28337277/effect-and-mechanism-of-shed-on-ulcer-wound-healing-in-sprague-dawley-rat-models-with-diabetic-ulcer
#15
Yue Lv, Lihong Ge, Yuming Zhao
To evaluate the effect of stem cells from human exfoliated deciduous teeth (SHED) upon the ulcer wound healing and evaluate the mechanism underlying the role of SHED in Sprague-Dawley rat models with diabetic foot ulcer. The rats with diabetic ulcer were established and treated with SHED, mesenchymal stem cell (MSC) and PBS, respectively. The expression of vascular endothelial growth factor (VEGF), endothelial nitric oxide synthase (eNOS), matrix metalloproteinase-2 (MMP-2) and MMP9 at both protein and RNA levels was quantitatively measured...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28336328/bone-healing-is-achievable-despite-extensive-wound-dehiscence-and-wide-plate-and-screws-exposure-in-children
#16
Elias Melhem, Wael Bayoud, Ismat Ghanem
BACKGROUD: Extensive wound dehiscence and wide plate and screw exposure in the early weeks following orthopaedic surgery in children is usually managed either by extensive debridement, lavage and secondary closure or hardware removal and external fixation. PATIENTS: Three children with LCP plate and screws exposure were managed by simple repetitive debridement and local wound care without any IV antibiotics, nor secondary closure or hardware removal. All three cases occurred in the tibia, one following tibial osteotomy in lateral hemimelia with a long history of previous surgeries, one following wide excision of a tibial Ewing sarcoma with chemo and radiotherapy, and the third following wide excision of a 12cm necrotic tibial segment due to chronic osteomyelitis...
March 20, 2017: Orthopaedics & Traumatology, Surgery & Research: OTSR
https://www.readbyqxmd.com/read/28336149/the-acl-injury-response-a-collagen-based-analysis
#17
Joshua S Everhart, John H Sojka, Christopher C Kaeding, Alicia L Bertone, David C Flanigan
BACKGROUND: Anterior cruciate ligament (ACL) injuries do not effectively heal. Tendon graft tissue after reconstruction shows rapid tissue turnover and 'ligamentization.' It is unknown whether native torn ACL tissue undergoes significant collagen turnover after injury or is arrested by the intraarticular environment. It is also unknown whether injury mechanism or chronicity affect torn ligament tissue turnover. METHODS: Thirty-three mid-substance ACL biopsies were obtained during primary arthroscopic ACL reconstruction (n=31; nine contact injuries, 22 non-contact injuries, 22 males, 11 females; mean age 28...
March 20, 2017: Knee
https://www.readbyqxmd.com/read/28335687/isolated-hagl-lesion-after-arthroscopic-bankart-repair-in-a-professional-soccer-player
#18
Haluk Celik, Mustafa Faik Seckin, Adnan Kara, Senol Akman
Post-traumatic anterior shoulder instability commonly occurs following an avulsion of capsulolabral complex from glenoid (Bankart lesion) or rarely after humeral avulsion of the glenohumeral ligaments (HAGL lesion). Arthroscopic Bankart repair offers high success rates of healing. However, trauma following the treatment may cause implant failure or re-avulsion of the treated tissue. We aim to present the diagnosis and treatment of an isolated HAGL lesion in a professional soccer player who had previously undergone arthroscopic Bankart repair...
March 24, 2017: Physician and Sportsmedicine
https://www.readbyqxmd.com/read/28334716/downregulation-of-ubap2l-inhibits-the-epithelial-mesenchymal-transition-via-snail1-regulation-in-hepatocellular-carcinoma-cells
#19
Tao Ye, Jing Xu, Ling Du, Wenhui Mo, Yiming Liang, Jinglin Xia
BACKGROUND/AIMS: Dysregulation of ubiquitin-associated protein 2-like (UBAP2L) has been reported in tumors, but its role in hepatocellular carcinoma (HCC) progression is unclear. METHODS: The expression levels of UBAP2L in HCC tissues and HCC cell lines were detected by western blot and quantitative real-time (qRT) PCR. The effects of UBAP2L expression on HCC cell biological traits, including migration and invasion, were investigated by wound healing assay and matrigel transwell assay...
March 27, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28333972/evaluation-of-high-resolution-in-vivo-mri-for-longitudinal-analysis-of-endochondral-fracture-healing-in-mice
#20
Melanie Haffner-Luntzer, Fabian Müller-Graf, Romano Matthys, Yvonne Hägele, Verena Fischer, René Jonas, Alireza Abaei, Florian Gebhard, Volker Rasche, Anita Ignatius
Mice are extensively used for experimental bone-healing studies. However, there are few established nondestructive in vivo techniques for longitudinal fracture-healing analysis in mice, including in vivo micro-computed tomography (μCT) and radiography. Importantly, none of the established methods can discriminate between non-mineralized fibrous tissue and cartilage in the soft fracture callus. Therefore, the objective was to establish high-resolution in vivo magnetic resonance imaging (MRI) for the longitudinal assessment of soft callus formation during bone healing in mice...
2017: PloS One
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