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Non-healing wounds treatments

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https://www.readbyqxmd.com/read/28644234/efficacy-of-sodium-hyaluronate-in-murine-diabetic-ocular-surface-diseases
#1
Guohu Di, Xia Qi, Xiaowen Zhao, Songmei Zhang, Qingjun Zhou
PURPOSE: To evaluate the efficacy of sodium hyaluronate (HA) eye drops for the treatment of diabetic ocular surface diseases in mice. METHODS: Male 6- to 8-week-old C57BL/6 mice underwent induction of type 1 diabetes with intraperitoneal injections of streptozotocin, with normal mice as the control. Topical 0.3% HA, 0.1% HA, 0.4% polyethylene glycol eye drops, and normal saline were administered to diabetic mice with an intact or debrided corneal epithelium. Normal saline was applied in the controls...
June 21, 2017: Cornea
https://www.readbyqxmd.com/read/28640728/wound-bed-preparation-a-vital-step-in-the-healing-process
#2
Simon Barrett
Non-healing wounds are a significant burden to healthcare systems, where it is estimated that 4-5% of the adult population has a problem wound at any one time ( Guest et al, 2017 ). It is suggested that infection is the most frequent complication in non-healing wounds where it can prolong patient treatment times and increase resource use ( Gottrup et al, 2013 ). Wound infection develops as a result of an imbalance between the patient's immune system and the conditions in the wound, which subsequently can promote bacterial proliferation ( Wounds UK, 2013 )...
June 22, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28639707/dressings-and-topical-agents-for-treating-pressure-ulcers
#3
REVIEW
Maggie J Westby, Jo C Dumville, Marta O Soares, Nikki Stubbs, Gill Norman
BACKGROUND: Pressure ulcers, also known as bedsores, decubitus ulcers and pressure injuries, are localised areas of injury to the skin or the underlying tissue, or both. Dressings are widely used to treat pressure ulcers and promote healing, and there are many options to choose from including alginate, hydrocolloid and protease-modulating dressings. Topical agents have also been used as alternatives to dressings in order to promote healing.A clear and current overview of all the evidence is required to facilitate decision-making regarding the use of dressings or topical agents for the treatment of pressure ulcers...
June 22, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28634413/topical-fibronectin-improves-wound-healing-of-irradiated-skin
#4
Maxwell B Johnson, Brandon Pang, Daniel J Gardner, Solmaz Niknam-Benia, Vinaya Soundarajan, Athanasios Bramos, David P Perrault, Kian Banks, Gene K Lee, Regina Y Baker, Gene H Kim, Sunju Lee, Yang Chai, Mei Chen, Wei Li, Lawrence Kwong, Young-Kwon Hong, Alex K Wong
Wound healing is significantly delayed in irradiated skin. To better understand global changes in protein expression after radiation, we utilized a reverse phase protein array (RPPA) to identify significant changes in paired samples of normal and irradiated human skin. Of the 210 proteins studied, fibronectin was the most significantly and consistently downregulated in radiation-damaged skin. Using a murine model, we confirmed that radiation leads to decreased fibronectin expression in the skin as well as delayed wound healing...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28631809/anabolic-steroids-for-treating-pressure-ulcers
#5
REVIEW
Cho Naing, Maxine A Whittaker
BACKGROUND: Pressure ulcers, also known as bed sores, pressure sores or decubitus ulcers develop as a result of a localised injury to the skin or underlying tissue, or both. The ulcers usually arise over a bony prominence, and are recognised as a common medical problem affecting people confined to a bed or wheelchair for long periods of time. Anabolic steroids are used as off-label drugs (drugs which are used without regulatory approval) and have been used as adjuvants to usual treatment with dressings, debridement, nutritional supplements, systemic antibiotics and antiseptics, which are considered to be supportive in healing of pressure ulcers...
June 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28622041/the-effects-of-low-level-laser-therapy-on-the-healing-of-bone-defects-in-streptozotocin-induced-diabetic-rats-a-histological-and-morphometric-evaluation
#6
Senem Yildirimturk, Yigit Sirin, Merva Soluk Tekkesin, Gokhan Gurler, Deniz Firat
BACKGROUND: The aim of the present study was to evaluate the effects of LLLT on the healing of bone defects in rats with streptozotocin (STZ) induced DM. METHODS: 28 male Sprague-Dawley rats were used in this study. 14 animals received a single dose of STZ intraperitoneally (65 mg/kg) to induce Type I DM, whereas others were injected only with sterile saline solution. Four weeks later, standard bone defects were created in the tibiae of rats. Surgical wounds in one group from each of the diabetic and non-diabetic animals were irradiated with diode laser for every other day for 4 weeks and they were described as DM+LLLT and CONT+LLLT groups, respectively...
June 16, 2017: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/28620820/cytoglobin-inhibits-migration-through-pi3k-akt-mtor-pathway-in-fibroblast-cells
#7
Selami Demirci, Ayşegül Doğan, Hüseyin Apdik, Emre Can Tuysuz, Sukru Gulluoglu, Omer Faruk Bayrak, Fikrettin Şahin
Cell proliferation and migration are crucial in many physiological processes including development, cancer, tissue repair, and wound healing. Cell migration is regulated by several signaling molecules. Identification of genes related to cell migration is required to understand molecular mechanism of non-healing chronic wounds which is a major concern in clinics. In the current study, the role of cytoglobin (CYGB) gene in fıbroblast cell migration and proliferation was described. L929 mouse fibroblast cells were transduced with lentiviral particles for CYGB and GFP, and analyzed for cell proliferation and migration ability...
June 15, 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28620387/notch-regulates-macrophage-mediated-inflammation-in-diabetic-wound-healing
#8
Andrew S Kimball, Amrita D Joshi, Anna E Boniakowski, Matthew Schaller, Jooho Chung, Ronald Allen, Jennifer Bermick, William F Carson, Peter K Henke, Ivan Maillard, Steve L Kunkel, Katherine A Gallagher
Macrophages are essential immune cells necessary for regulated inflammation during wound healing. Recent studies have identified that Notch plays a role in macrophage-mediated inflammation. Thus, we investigated the role of Notch signaling on wound macrophage phenotype and function during normal and diabetic wound healing. We found that Notch receptor and ligand expression are dynamic in wound macrophages during normal healing. Mice with a myeloid-specific Notch signaling defect (DNMAML(floxed)Lyz2(Cre+) ) demonstrated delayed early healing (days 1-3) and wound macrophages had decreased inflammatory gene expression...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28613416/topical-antimicrobial-agents-for-treating-foot-ulcers-in-people-with-diabetes
#9
REVIEW
Jo C Dumville, Benjamin A Lipsky, Christopher Hoey, Mario Cruciani, Marta Fiscon, Jun Xia
BACKGROUND: People with diabetes are at high risk for developing foot ulcers, which often become infected. These wounds, especially when infected, cause substantial morbidity. Wound treatments should aim to alleviate symptoms, promote healing, and avoid adverse outcomes, especially lower extremity amputation. Topical antimicrobial therapy has been used on diabetic foot ulcers, either as a treatment for clinically infected wounds, or to prevent infection in clinically uninfected wounds...
June 14, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28599845/evaluating-a-novel-oxygenating-therapeutic-for-its-potential-use-in-the-advancement-of-wound-healing
#10
Jennifer Gueldner, Fan Zhang, Bernd Zechmann, Erica D Bruce
Non-gaseous oxygen therapeutics are emerging technologies in regenerative medicine that aim to sidestep the undesirable effects seen in traditional oxygen therapies, while enhancing tissue and wound regeneration. Using a novel oxygenating therapeutic (Ox66™) several in vitro models including fibroblast and keratinocyte monocultures were evaluated for potential drug toxicity, the ability of cells to recover after chemical injury, and cell migration after scratch assay. It was determined that in both cell lines, there was no significant cytotoxicity found after independent treatment with Ox66™...
June 7, 2017: Toxicology in Vitro: An International Journal Published in Association with BIBRA
https://www.readbyqxmd.com/read/28598760/the-use-of-modern-dressings-in-managing-split-thickness-skin-graft-donor-sites-a-single-centre-randomised-controlled-trial
#11
M Kazanavičius, A Cepas, V Kolaityte, R Simoliuniene, R Rimdeika
OBJECTIVE: To identify the most appropriate, most suitable and most efficient dressing for split-thickness skin graft (STSG) donor sites. Comparing the wound healing rate, pain severity and duration, as well as the dressing change frequency in four randomised patient groups. METHODS: A single-centre non-blinded randomised controlled trial was carried out during 2010-2014. All patients treated for skin defects/lesions (due to burns, trauma or ulcers) using STSG were included in the study...
June 2, 2017: Journal of Wound Care
https://www.readbyqxmd.com/read/28595906/construction-of-egfr-peptide-gefitinib-quantum-dots-long-circulating-polymeric-liposomes-for-treatment-and-detection-of-nasopharyngeal-carcinoma
#12
Yong Liu, Yi Zhao, Hao Luo, Fei Liu, YanMin Wu
Gefitinib/Quantum dots (QDs) loaded peptide long circulating liposomes (G/QDs-P-LCPL) were successfully prepared for treatment and detection by fluorescence labeling for nasopharyngeal carcinoma. Gefitinib was found to have marked inhibition which is dose- and time-dependent. Hoechst 33258 florescence staining and wound-healing assay indicated that as G/QDs-P-LCPL concentration increased, HONE1 staining cells decreased, while the amount of nucleus pyknosis and karyorrhexis grew. Florescence tracing result shows that the drug mainly distributed through tumors...
June 5, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28581212/glial-cell-derived-neurotrophic-factor-promotes-dental-pulp-stem-cell-migration
#13
Nan Xiao, Wei Ye Yu, Dawei Liu
Preserving the vitality of the teeth is critical in maintaining the function and esthetics of teeth during dental treatment. Dental pulp stem cells (DPSCs) are mesenchymal cells that are demonstrated to possess stem cell properties, such as self-renewal, proliferation and pluripotency. DPSCs can be obtained through non-invasive procedure from the dental pulp and become potential resources for tissue regeneration. Neurotrophic factors are known to promote survival and growth of neurons. In the present study, we examined the expression of the glial cell derived neurotrophic factor (GDNF) family ligands and receptors, and characterized the intracellular localization of them in DPSCs...
June 5, 2017: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/28559978/mir-143-3p-targeting-lim-domain-kinase-1-suppresses-the-progression-of-triple-negative-breast-cancer-cells
#14
Dengfeng Li, Jiashu Hu, Hongming Song, Hui Xu, Chengyang Wu, Bingkun Zhao, Dan Xie, Tianqi Wu, Junyong Zhao, Lin Fang
Breast cancer is the most common cancer in women worldwide. Triple-negative breast cancer is one of the most aggressive types of breast cancer as it has the worst clinical outcome for patients. microRNAs are a type of small non-coding RNA and play an important role in breast cancer. The purpose of this study was to explore the potential function and mechanism of miR-143-3p in triple-negative breast cancer (TNBC). MTT and colony formation assays, the effect of miR-143-3p modulation on MDA-MB-231 cell proliferation, revealed that increased miR-143-3p expression inhibited the proliferation of MDA-MB-231 TNBC cells...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28554762/effect-of-plasma-activated-medium-on-the-decrease-of-tumorigenic-population-in-lymphoma
#15
Naoki Wada, Jun-Ichiro Ikeda, Hiromasa Tanaka, Hajime Sakakita, Masaru Hori, Yuzuru Ikehara, Eiichi Morii
Nonequilibrium atmospheric pressure plasma (NEAPP) is a novel approach for blood coagulation, wound healing, and tumor elimination. NEAPP not only directly but also indirectly affects living cells via the medium exposed to NEAPP-yielding devises, called plasma-activated medium (PAM). The conservable and portable PAM serves as an alternative and advantageous approach over direct NEAPP. Here we examined the effect of PAM on lymphoplasmacytic lymphoma (LPL) cell lines. We found that PAM induced plasma cell differentiation and reduced tumorigenic population...
April 20, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28542418/effects-of-histatin-1-peptide-on-human-corneal-epithelial-cells
#16
Dhara Shah, Marwan Ali, Deepak Shukla, Sandeep Jain, Vinay Kumar Aakalu
PURPOSE: Ocular surface and corneal epithelial wounds are common and potentially debilitating problems. Ideal treatments for these injuries would promote epithelial healing without inflammation, infection and scarring. In addition the best treatments would be cost-efficient, effective, non-toxic and easily applied. Histatin-1 peptides have been shown to be safe and effective enhancers of epithelial wound healing in other model systems. We sought to determine whether histatin-1 peptides could enhance human corneal epithelial wound healing in vitro...
2017: PloS One
https://www.readbyqxmd.com/read/28542370/upregulation-of-tlr4-via-pkc-activation-contributes-to-impaired-wound-healing-in-high-glucose-treated-kidney-proximal-tubular-cells
#17
Jianping Peng, Hang Zheng, Xia Wang, Zhixiang Cheng
Acute kidney injury (AKI) leads to a worse prognosis in diabetic patients compared with prognoses in non-diabetic patients, but whether and how diabetes affects kidney repair after AKI remains unknown. Here, we used scratch-wound healing and transwell migration models to examine whether and how wound healing is affected by high glucose levels in cultured kidney proximal tubular cells (RPTC). The results show that scratch-wound healing and transwell migration were significantly slower in high-glucose-treated kidney tubular cells (30 mM glucose) than in low-glucose-treated cells (5...
2017: PloS One
https://www.readbyqxmd.com/read/28535522/restenosis-in-hemodialytic-fistulas-and-chronic-kidney-disease-associated-vascular-disease-two-pathologies-driven-by-metakaryotic-stem-cells
#18
Gianandrea Pasquinelli, William G Thilly, Elena V Gostjeva, Paola Todeschini, Giuseppe Cianciolo, Claudio Ronco, Gaetano La Manna
Chronic kidney disease (CKD) exacerbating vascular disease poses a major challenge to nephrology. Surgically placed vascular fistulas, as an aid to hemodialysis prior to kidney transplant, have extended many lives, while post-surgical restenosis closure of the fistula by smooth muscle cells affects many lives. When post-surgical restenosis is developed, palliative measures are almost always surgical: there are no effective drug treatments. In this study, we offer a testable hypothesis that effects of CKD on widely distributed vascular diseases and the phenomenon of fistula restenosis are both driven by the pathologic creation of non-dividing smooth muscle cells via asymmetric division of exponentially increasing metakaryotic stem cells...
2017: Contributions to Nephrology
https://www.readbyqxmd.com/read/28534941/two-natural-eudesmane-type-sesquiterpenes-from-laggera-alata-inhibit-angiogenesis-and-suppress-breast-cancer-cell-migration-through-vegf-and-angiopoietin-2-mediated-signaling-pathways
#19
Ning Liang, Yaolan Li, Hau Yin Chung
Eudesmane-type sesquiterpenes are natural sesquiterpenes with anti-inflammatory properties, but their anti-angiogenic activities are not known. The present study demonstrated that 5α-hydroxycostic acid and hydroxyisocostic acid, two eudesmane-type sesquiterpenes (ETSs), isolated from the herb Laggera alata, possessed anti-angiogenic effects. Under non-toxic dosage, ETSs suppressed VEGF‑induced proliferation in human umbilical vein endothelial cells (HUVECs) and vessel formation in zebrafish embryos. Moreover, ETSs inhibited VEGF-stimulated HUVEC migration, stress fibers and tube formation...
May 17, 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/28533933/negative-wound-pressure-therapy-is-safe-and-useful-in-pediatric-burn-patients
#20
Yanhan Ren, Philip Chang, Robert L Sheridan
INTRODUCTION: Negative Pressure Wound Therapy (NPWT) has proven to be a powerful tool in facilitating healing of difficult wounds of a variety of etiologies. The pediatric experience with NPWT has been limited due to concerns about vascular compression and pain associated with treatment. METHOD: A retrospective review was performed to evaluate the therapeutic effect of NPWT on children with difficult wounds due to burns or soft-tissue trauma. NPWT was instituted in the operating room under general anesthesia using a commercially available system...
2017: International Journal of Burns and Trauma
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