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https://www.readbyqxmd.com/read/29667926/proximal-tibia-stress-fracture-with-osteoarthritis-of-knee-radiological-and-functional-analysis-of-one-stage-tka-with-long-stem
#1
Dhanasekaran Soundarrajan, Natesan Rajkumar, Palanisamy Dhanasekararaja, Shanmuganathan Rajasekaran
INTRODUCTION: Proximal tibia stress fractures with knee osteoarthritis pose a challenging situation. We evaluated the radiological and functional outcome of one-stage total knee arthroplasty (TKA) and long stem for patients with varied grades of knee arthritis and proximal tibia stress fractures.  Methods: We analysed 20 patients from April 2012 to March 2017 with proximal tibia stress fractures associated with knee osteoarthritis of varied grades. Out of 20 patients, five were acute fresh fractures...
2018: SICOT-J
https://www.readbyqxmd.com/read/29665018/differential-response-of-human-dermal-fibroblast-subpopulations-to-visible-and-near-infrared-light-potential-of-photobiomodulation-for-addressing-cutaneous-conditions
#2
Charles Mignon, Natallia E Uzunbajakava, Irene Castellano-Pellicena, Natalia V Botchkareva, Desmond J Tobin
BACKGROUND OBJECTIVES: The past decade has witnessed a rapid expansion of photobiomodulation (PBM), demonstrating encouraging results for the treatment of cutaneous disorders. Confidence in this approach, however, is impaired not only by a lack of understanding of the light-triggered molecular cascades but also by the significant inconsistency in published experimental outcomes, design of the studies and applied optical parameters. This study aimed at characterizing the response of human dermal fibroblast subpopulations to visible and near-infrared (NIR) light in an attempt to identify the optical treatment parameters with high potential to address deficits in aging skin and non-healing chronic wounds...
April 17, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29663271/regenerative-potential-and-inflammation-induced-secretion-profile-of-human-adipose-derived-stromal-vascular-cells-are-influenced-by-donor-variability-and-prior-breast-cancer-diagnosis
#3
Adrienne M Parsons, Deborah M Ciombor, Paul Y Liu, Eric M Darling
Adipose tissue contains a heterogeneous population of stromal vascular fraction (SVF) cells that work synergistically with resident cell types to enhance tissue healing. Ease of access and processing paired with therapeutic promise make SVF cells an attractive option for autologous applications in regenerative medicine. However, inherent variability in SVF cell therapeutic potential from one patient to another hinders prognosis determination for any one person. This study investigated the regenerative properties and inflammation responses of thirteen, medically diverse human donors...
April 16, 2018: Stem Cell Reviews
https://www.readbyqxmd.com/read/29661510/cftr-rescue-with-vx-809-and-vx-770-favors-the-repair-of-primary-airway-epithelial-cell-cultures-from-patients-with-class-ii-mutations-in-the-presence-of-pseudomonas-aeruginosa-exoproducts
#4
Damien Adam, Claudia Bilodeau, Laura Sognigbé, Émilie Maillé, Manon Ruffin, Emmanuelle Brochiero
BACKGROUND: Progressive airway damage due to bacterial infections, especially with Pseudomonas aeruginosa remains the first cause of morbidity and mortality in CF patients. Our previous work revealed a repair delay in CF airway epithelia compared to non-CF. This delay was partially prevented after CFTR correction (with VRT-325) in the absence of infection. Our goals were now to evaluate the effect of the Orkambi combination (CFTR VX-809 corrector + VX-770 potentiator) on the repair of CF primary airway epithelia, in infectious conditions...
April 13, 2018: Journal of Cystic Fibrosis: Official Journal of the European Cystic Fibrosis Society
https://www.readbyqxmd.com/read/29658991/novel-de-novo-synthesized-phosphate-carrier-compound-aba-peg20k-pi20-suppresses-collagenase-production-in-enterococcus-faecalis-and-prevents-colonic-anastomotic-leak-in-an-experimental-model
#5
M Wiegerinck, S K Hyoju, J Mao, A Zaborin, C Adriaansens, E Salzman, N H Hyman, O Zaborina, H van Goor, J C Alverdy
BACKGROUND: Previous work has demonstrated that anastomotic leak can be caused by collagenolytic bacteria such as Enterococcus faecalis via an effect on wound collagen. In humans, E. faecalis is the organism cultured most commonly from a leaking anastomosis, and is not routinely eliminated by standard oral or intravenous antibiotics. Novel strategies are needed to contain the virulence of this pathogen when present on anastomotic tissues. METHODS: Polyphosphorylated polymer ABA-PEG20k-Pi20 was tested in mice for its ability to prevent anastomotic leak caused by collagenolytic E...
April 16, 2018: British Journal of Surgery
https://www.readbyqxmd.com/read/29658630/lumbar-sympathectomy-versus-prostanoids-for-critical-limb-ischaemia-due-to-non-reconstructable-peripheral-arterial-disease
#6
REVIEW
Indrani Sen, Sunil Agarwal, Prathap Tharyan, Rachel Forster
BACKGROUND: Peripheral arterial disease (PAD) is a common circulatory problem that can lead to reduced blood flow to the limbs, which may result in critical limb ischaemia (CLI), a painful manifestation that occurs when a person is at rest. The mainstay of treatment for CLI is surgical or endovascular repair. However, when these means of treatment are not suitable, due to anatomical reasons or comorbidities, treatment for pain is limited. Lumbar sympathectomy and prostanoids have both been shown to reduce pain from CLI in people who suffer from non-reconstructable PAD, but there is currently insufficient evidence to determine if one treatment is superior...
April 16, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29657585/deterioration-in-saliva-quality-in-patients-with-sj%C3%A3-gren-s-syndrome-impact-of-decrease-in-salivary-epidermal-growth-factor-on-the-severity-of-intraoral-manifestations
#7
REVIEW
Naoto Azuma, Yoshinori Katada, Hajime Sano
Background: Sjögren's syndrome (SS) is a chronic inflammatory autoimmune disease characterized by lymphocytic infiltration of the exocrine glands, especially the salivary and lacrimal glands. As a result of salivary gland dysfunction, most patients with SS have xerostomia related to a reduced salivary flow rate. In addition to the discomfort due to xerostomia, dry mouth can cause various intraoral manifestations such as refractory stomatitis, ulcer, and atrophic changes in the oral mucosa and tongue, and the patient's quality of life (QoL) is severely impaired...
2018: Inflammation and Regeneration
https://www.readbyqxmd.com/read/29657098/inflammatory-responses-and-barrier-function-of-endothelial-cells-derived-from-human-induced-pluripotent-stem-cells
#8
Oleh V Halaidych, Christian Freund, Francijna van den Hil, Daniela C F Salvatori, Mara Riminucci, Christine L Mummery, Valeria V Orlova
Several studies have reported endothelial cell (EC) derivation from human induced pluripotent stem cells (hiPSCs). However, few have explored their functional properties in depth with respect to line-to-line and batch-to-batch variability and how they relate to primary ECs. We therefore carried out accurate characterization of hiPSC-derived ECs (hiPSC-ECs) from multiple (non-integrating) hiPSC lines and compared them with primary ECs in various functional assays, which included barrier function using real-time impedance spectroscopy with an integrated assay of electric wound healing, endothelia-leukocyte interaction under physiological flow to mimic inflammation and angiogenic responses in in vitro and in vivo assays...
April 9, 2018: Stem Cell Reports
https://www.readbyqxmd.com/read/29655989/in-vivo-migration-of-mesenchymal-stem-cells-to-burn-injury-sites-and-their-therapeutic-effects-in-a-living-mouse-model
#9
Eun Jung Oh, Ho Won Lee, Senthilkumar Kalimuthu, Tae Jung Kim, Hyun Mi Kim, Se Hwan Baek, Liya Zhu, Ji Min Oh, Seung Hyun Son, Ho Yun Chung, Byeong-Cheol Ahn
Mesenchymal stem cell (MSC)-based therapy has emerged as a promising therapeutic strategy for tissue regeneration and repair. In this study, we non-invasively monitored the tracking of MSCs toward burn injury sites using MSCs expressing firefly luciferase (Fluc) gene in living mice, and evaluated the effects of the MSCs at the injury site. Murine MSCs co-expressing Fluc and green fluorescent protein (GFP) were established using a retroviral system (referred to as MSC/Fluc). To evaluate the ability of MSC migration toward burn injury sites, cutaneous burn injury was induced in the dorsal skin of mice...
April 12, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29655798/a-potential-antibacterial-wound-dressing-of-cefadroxil-chitosan-nanoparticles-in-situ-gel-fabrication-in-vitro-optimization-and-in-vivo-evaluation
#10
Mona Basha, Mona M AbouSamra, Ghada A Awad, Soheir S Mansy
Wound healing following skin injury is a natural phenomenon that usually lacks quality, rapidity, and aesthetics. Thus, the purpose of this study was to fabricate a new easily applied in situ gel of Cefadroxil (CDX) loaded with chitosan nanoparticles (CDX-CSNPs) that could promote wound healing, capable of inhibiting the possible accompanying bacterial infection. The nanoparticles were prepared by double emulsion technique and the influence of formulation parameters on drug entrapment efficiency (EE%), particle size (PS), polydispersity index (PDI) and zeta potential (ZP) were investigated using a full factorial design...
April 12, 2018: International Journal of Pharmaceutics
https://www.readbyqxmd.com/read/29655664/a-retrospective-investigation-of-abdominal-visceral-fat-body-mass-index-bmi-and-active-smoking-as-risk-factors-for-donor-site-wound-healing-complications-after-free-diep-flap-breast-reconstructions
#11
Floyd W Timmermans, Pèdrou B Westland, Stefan Hummelink, Joep Schreurs, Marijn Hameeteman, Dietmar J O Ulrich, Nicholas J Slater
BACKGROUND: The deep inferior epigastric artery perforator (DIEP) flap is one of the most common techniques for breast reconstruction. Body mass index (BMI) is considered as an important predictor of donor site healing complications such as wound dehiscence. The use of computed tomography (CT) proved to be a precise and objective method to assess visceral adipose tissue. It remains unclear whether quantification of visceral fat provides more accurate predictions of abdominal wound healing complications than BMI...
March 28, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/29652825/fabrication-of-sericin-agrose-gel-loaded-lysozyme-and-its-potential-in-wound-dressing-application
#12
Meirong Yang, Yejing Wang, Gang Tao, Rui Cai, Peng Wang, Liying Liu, Lisha Ai, Hua Zuo, Ping Zhao, Ahmad Umar, Chuanbin Mao, Huawei He
Sericin is a biomaterial resource for its significant biodegradability, biocompatibility, hydrophilicity, and reactivity. Designing a material with superabsorbent, antiseptic, and non-cytotoxic wound dressing properties is advantageous to reduce wound infection and promote wound healing. Herein, we propose an environment-friendly strategy to obtain an interpenetrating polymer network gel through blending sericin and agarose and freeze-drying. The physicochemical characterizations of the sericin/agarose gel including morphology, porosity, swelling behavior, crystallinity, secondary structure, and thermal property were well characterized...
April 13, 2018: Nanomaterials
https://www.readbyqxmd.com/read/29652610/combination-therapy-comprising-a-static-magnetic-field-with-contractility-improves-skin-wounds
#13
Byeong-Wook Song, Hyunki Hong, Yu Jin Jung, Ju Hyung Lee, Bong-Soo Kim, Hoon-Bum Lee
Cutaneous wounds can present significant clinical problems because of abnormal healing after deep dermal damage. Despite technical advances in wound care, there are still unmet needs that result from inefficient treatment. In this study, we aimed to improve skin wound healing using a contractibility band with static magnetic field (SMF), termed a Magnetic band (Mb). To examine the effect of the Mb on wound healing, full-thickness 15 mm × 35 mm excision wounds were surgically created on the dorsum of rats. An elastic and contractile band (non-treatment), or one neodymium magnet (Nd-1) or two magnets with an elastic and contractile band (Nd-2) were topically applied to the wound daily and the wound size was measured from day 1 to 7 after surgery...
March 21, 2018: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/29651840/glucosamine-based-supramolecular-nanotubes-for-human-mesenchymal-cell-therapy
#14
Satish Talloj, Bill Cheng, Jen-Po Weng, Hsin-Chieh Lin
Herein, we demonstrate an example of glucosamine-based supramolecular hydrogels that can be used for human mesenchymal cell therapy. We designed and synthesized a series of amino acid derivatives based on a strategy of capping D-glucosamine moiety at C-terminus and fluorinated benzyl group at N-terminus. From a systematic study on chemical structures, we discovered that the glucosamine-based supramolecular hydrogel (PFB-F-Glu) self-assembled with one dimensional nanotubular structures at physiological pH. The self-assembly of newly discovered PFB-F-Glu motif is attributed to synergistic effect of π-π stacking and extensive intermolecular hydrogen bonding network in aqueous medium...
April 13, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29650262/triple-flap-technique-for-vulvar-reconstruction
#15
R Mercut, R Sinna, R Vaucher, P A Giroux, N Assaf, A Lari, S Dast
OBJECTIVE: Perineal defects are encountered ever more frequently, in the treatment of vulvar cancers or abdominoperineal resection. The surgical treatment of vulvar cancer leads to significant skin defect. The aim of the reconstruction is not to provide volume but rather to resurface perineum. We propose a new solution to cover the extensive skin defect remaining after excision. METHODS: We report 3 patients who underwent large excision for vulvar cancer, with lymph node dissection...
April 9, 2018: Annales de Chirurgie Plastique et Esthétique
https://www.readbyqxmd.com/read/29642540/instillation-of-sericin-enhances-corneal-wound-healing-through-the-erk-pathway-in-rat-debrided-corneal-epithelium
#16
Noriaki Nagai, Yuya Fukuoka, Miyu Ishii, Hiroko Otake, Tetsushi Yamamoto, Atsushi Taga, Norio Okamoto, Yoshikazu Shimomura
Sericin is a major constituent of silk produced by silkworms. We previously found that the instillation of sericin enhanced the proliferation of corneal epithelial cells, and acted to promote corneal wound healing in both normal and diabetic model rats. However, the mechanisms by which sericin promotes the proliferation of corneal cells have not been established. In this study, we investigated the effects of sericin on Akt and ERK activation in a human corneal epithelial cell line (HCE-T cells) and rat debrided corneal epithelium...
April 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29630115/microrna-520a-3p-suppresses-non-small-cell-lung-carcinoma-by-inhibition-of-high-mobility-group-box-1-hmgb1
#17
X Lv, L Yao, Y-Q Nie, X-Y Xu
OBJECTIVE: Currently, pathogenesis of non-small cell lung carcinoma (NSCLC) is still unknown and the treatment is far from ideal. Therefore, we investigated the effect of inhibiting microRNA-520a-3p in NSCLC cells. MATERIALS AND METHODS: NCI-H157 cells were treated with microRNA-520a-3p analogs for 48 h, or microRNA-520a-3p analogs and its inhibitor, for a total of 48 h. Many tests were performed, including MTT, flow cytometry, wound healing assay and transwell assay...
March 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29627463/recent-advances-on-silver-nanoparticle-and-biopolymer-based-biomaterials-for-wound-healing-applications
#18
REVIEW
Sathish Sundar Dhilip Kumar, Naresh Kumar Rajendran, Nicolette Nadene Houreld, Heidi Abrahamse
Silver nanoparticles (AgNPs) are classified as metal-based nanoparticles and have gained considerable attention amongst researchers in wound healing applications, owing to their physicochemical and biological properties. The effectiveness of AgNPs has been tested in vitro and are well documented in the literature. Silver nanoparticles have been shown to possess fast, broad-spectrum antibacterial activity. Dressings which contain AgNPs are non-cytotoxic and safe for patients in wound care management. Silver nanoparticle based biomaterials (AgNP-BMs) are actively utilized for the treatment of all types of chronic wounds, and this combination plays an important role in wound healing applications...
April 5, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29626550/drug-delivery-systems-and-materials-for-wound-healing-applications
#19
Saghi Saghazadeh, Chiara Rinoldi, Maik Schot, Sara Saheb Kashaf, Fatemeh Sharifi, Elmira Jalilian, Kristo Nuutila, Giorgio Giatsidis, Pooria Mostafalu, Hossein Derakhshandeh, Kan Yue, Wojciech Swieszkowski, Adnan Memic, Ali Tamayol, Ali Khademhosseini
Chronic, non-healing wounds place a significant burden on patients and healthcare systems, resulting in impaired mobility, limb amputation, or even death. Chronic wounds result from a disruption in the highly orchestrated cascade of events involved in wound closure. Significant advances in our understanding of the pathophysiology of chronic wounds have resulted in the development of drugs designed to target different aspects of the impaired processes. However, the hostility of the wound environment rich in degradative enzymes and its elevated pH, combined with differences in the time scales of different physiological processes involved in tissue regeneration require the use of effective drug delivery systems...
April 4, 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/29625512/%C3%AE-arrestin2-affects-cardiac-progenitor-cell-survival-through-cell-mobility-and-tube-formation-in-severe-hypoxia
#20
Seul Ki Seo, Nari Kim, Ju Hee Lee, Sang Min Kim, Sang Yeub Lee, Jang Whan Bae, Kyung Kuk Hwang, Dong Woon Kim, Walter J Koch, Myeong Chan Cho
BACKGROUND AND OBJECTIVES: β-arrestin2 (β-arr2) basically regulates multiple signaling pathways in mammalian cells by desensitization and internalization of G-protein coupled receptors (GPCRs). We investigated impacts of β-arr2 on survival, mobility, and tube formation of cardiac progenitor cells (CPCs) obtained from wild-type (WT) mouse (CPC-WT), and β-arr2 knock-out (KO) mouse (CPC-KO) cultured in presence or absence of serum and oxygen as non-canonical roles in GPCR system. METHODS: CPCs were cultured in Dulbecco's Modified Eagle Medium/Nutrient Mixture F-12 -based media containing fetal bovine serum and growth factors...
April 2018: Korean Circulation Journal
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