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Non-healing wounds treatments

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https://www.readbyqxmd.com/read/29332333/epigallocatechin-gallate-from-green-tea-exhibits-potent-anticancer-effects-in-a-549-non-small-lung-cancer-cells-by-inducing-apoptosis-cell-cycle-arrest-and-inhibition-of-cell-migration
#1
Jie Huang, Shi Chen, Yi Shi, Cheng-Hong Li, Xiao-Jiang Wang, Fa-Jiu Li, Chuan-Hai Wang, Qing-Hua Meng, Jin-Nan Zhong, Min Liu, Zi-Ming Wang
PURPOSE: Green tea (Camellia sinensis) is considered as a rich source of epigallocatechin gallate (EGCG) which has been shown to exert impressive pharmacological properties. The anticancer properties of EGCG have been extensively studied however, its anticancer activity has not been explored in lung cancer. The present study was therefore designed to evaluate the anticancer effects of EGCG against non-small cell lung cancer (NSCLC) cell line A-549 and normal human fibroblast FR-2 cells...
November 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/29324848/platelet-rich-plasma-to-treat-experimentally-induced-skin-wounds-in-animals-a-systematic-review-and-meta-analysis
#2
Adolfo Maria Tambella, Anna Rita Attili, Gilles Dupré, Andrea Cantalamessa, Stefano Martin, Vincenzo Cuteri, Sabrina Marcazzan, Massimo Del Fabbro
The objective of the study was to review current literature to determine whether the topical application of platelet-rich plasma (PRP) promotes healing in experimentally-induced full-thickness skin wounds in animals. The hypothesis was that the adjunct of PRP has a positive effect on wound healing. An electronic search was carried out on the following databases: Web of Science, Cochrane Library, PubMed, Research Gate, Cochrane Wounds Group, Veterinary Information Network. No publication date nor language restrictions were applied...
2018: PloS One
https://www.readbyqxmd.com/read/29321155/plasminogen-replacement-therapy-for-the-treatment-of-children-and-adults-with-congenital-plasminogen-deficiency
#3
Amy D Shapiro, Charles Nakar, Joseph M Parker, Gary R Albert, John E Moran, Karen Thibaudeau, Neelam Thukral, Brandon M Hardesty, Pierre Laurin, Per Morten Sandset
Congenital plasminogen deficiency is caused by mutation(s) in PLG, the gene coding for production of the zymogen plasminogen, and is an ultra-rare disorder associated with abnormal accumulation or growth of fibrin-rich pseudomembranous lesions on mucous membranes, such as the conjunctiva, gingiva, and linings of the airways and genitourinary tract. Left untreated, these lesions may impair normal tissue and organ function, and impact quality of life. Plasminogen replacement therapy should provide an effective treatment of the clinical manifestations of congenital plasminogen deficiency...
January 10, 2018: Blood
https://www.readbyqxmd.com/read/29321021/silver-pig-skin-nanocomposites-and-mesenchymal-stem-cells-suitable-antibiofilm-cellular-dressings-for-wound-healing
#4
Mario Alberto Pérez-Díaz, Phaedra Silva-Bermudez, Binisa Jiménez-López, Valentín Martínez-López, Yaaziel Melgarejo-Ramírez, Ana Brena-Molina, Clemente Ibarra, Isabel Baeza, M Esther Martínez-Pardo, M Lourdes Reyes-Frías, Erik Márquez-Gutiérrez, Cristina Velasquillo, Gabriel Martínez-Castañon, Fidel Martinez-Gutierrez, Roberto Sánchez-Sánchez
BACKGROUND: Treatment of severe or chronic skin wounds is an important challenge facing medicine and a significant health care burden. Proper wound healing is often affected by bacterial infection; where biofilm formation is one of the main risks and particularly problematic because it confers protection to microorganisms against antibiotics. One avenue to prevent bacterial colonization of wounds is the use of silver nanoparticles (AgNPs); which have proved to be effective against non-multidrug-resistant and multidrug-resistant bacteria...
January 10, 2018: Journal of Nanobiotechnology
https://www.readbyqxmd.com/read/29319738/the-use-of-nanoparticles-in-wound-treatment-a-systematic-review
#5
Maria Michelle Pereira Silva, Maria Isis Freire de Aguiar, Andrea Bezerra Rodrigues, Maira Di Ciero Miranda, Michell Ângelo Marques Araújo, Isaura Letícia Tavares Palmeira Rolim, Angela Maria Alves E Souza
OBJECTIVE: To analyze the effects of nanoparticle-based dressings on the wound healing process in in vitro animals and human cells based on scientific evidence. METHOD: A systematic review of the literature in LILACS, PubMed and Science Direct databases. The articles were selected and evaluated for the level of evidence by the application of STROBE. RESULTS: The sample consisted of 12 articles. The application of the products occurred in surgical wounds, burns, infected wounds and gingival ulcers in laboratory animals, as well as in vitro tests, demonstrating that among other advantages, the nanoparticle-based dressings increased the healing speed, had good antibacterial capacity and were non cytotoxic agents...
January 8, 2018: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/29319719/a-new-low-cost-negative-pressure-wound-therapy-versus-a-commercially-available-therapy-device-widely-used-to-treat-complex-traumatic-injuries-a-prospective-randomized-non-inferiority-trial
#6
Fabio Kamamoto, Ana Lucia Munhoz Lima, Marcelo Rosa de Rezende, Rames Mattar-Junior, Marcos de Camargo Leonhardt, Kodi Edson Kojima, Carla Chineze Dos Santos
OBJECTIVES: Negative-pressure wound therapy has been widely adopted to reduce the complexity of treating a broad range of acute and chronic wounds. However, its cost is high. The objective of this study was to evaluate the following two different methods of negative-pressure wound therapy in terms of healing time: a low-cost method of negative-pressure wound therapy (a pressure stabilizer device connected to a hospital wall-vacuum system with a gauze-sealed dressing, USP) and the standard of care (vacuum-assisted closure, VAC)...
December 2017: Clinics
https://www.readbyqxmd.com/read/29316829/effects-of-carbomer-940-hydrogel-on-burn-wounds-an-in-vitro-and-in-vivo-study
#7
Farzad Hayati, Seyed Mehdi Ghamsari, Mohammad Mehdi Dehghan, Ahmad Oryan
PURPOSE: This study was designed to investigate the applicability of carbomer 940 hydrogel on skin-burn wounds by focusing on its effects on the zone of stasis. METHOD: Fibroblast cells were used to assess the cytotoxicity of carbomer 940. Wound healing was monitored by laser Doppler flowmetry and histopathological analysis. Twenty adult male Wistar rats were randomly divided into two groups (N = 10 each). After shaving their dorsum, a "burn comb" was contacted bilaterally on each side of the spine...
January 10, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29316594/biofilms-their-role-and-treatment-options-in-the-chronic-non-healing-wound
#8
Michael F Moore
The discovery of the existence of biofilms in the 1970s has resulted in a greater understanding of how bacteria form a synergistic relationship to facilitate their survival by incorporating and sharing the individual attributes that individual bacteria have with the polymicrobial flora that composes the biofilm. Advances in molecular biology have aided in delineating complexity of biofilms, but the abundance and plethora of the microbial world provides an ongoing and daunting task. The enormity of this task is reflected in the chronic non-healing wound, as it is estimated that 60% of all chronic non-healing wounds have a biofilm component...
December 22, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/29311091/neutralizing-%C3%AE-toxin-accelerates-healing-of-staphylococcus-aureus-infected-wounds-in-normal-and-diabetic-mice
#9
Roger V Ortines, Haiyun Liu, Lily I Cheng, Taylor S Cohen, Heather Lawlor, Abhishek Gami, Yu Wang, Carly A Dillen, Nathan K Archer, Robert J Miller, Alyssa G Ashbaugh, Bret L Pinsker, Mark C Marchitto, Christine Tkaczyk, C Kendall Stover, Bret R Sellman, Lloyd S Miller
Staphylococcus aureus wound infections delay healing and result in invasive complications such as osteomyelitis, especially in the setting of diabetic foot ulcers. In preclinical animal models of S. aureus skin infection, antibody neutralization of α-toxin (AT), a S. aureus secreted pore-forming cytolytic toxin, reduces disease severity by inhibiting skin necrosis and restoring effective host immune responses. However, whether therapeutic neutralization of α-toxin is effective against S. aureus-infected wounds is unclear...
January 8, 2018: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/29306212/microrna-19a-promotes-cell-viability-and-migration-of-chondrocytes-via-up-regulating-sox9-through-nf-%C3%AE%C2%BAb-pathway
#10
Chuandong Yu, Yongkun Wang
BACKGROUND: Osteoarthritis (OA), as a degenerative disease, is a major problem in ageing populations. To better understand the underlying mechanisms in the pathogenesis of OA, this study was undertaken to investigate the role of microRNA (miR)-19a in chondrocytes. METHODS: Expression of the members of miR-17-92 cluster in synovium from OA patients and non-OA patients were measured by quantitative reverse transcription-polymerase chain reaction (qRT-PCR). miR-19a was abnormal expressed in human chondrocyte line (CHON-001 and T-C/28 cells) and primary human chondrocytes by transient transfection...
January 3, 2018: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/29303807/mucus-microbiome-of-anastomotic-tissue-during-surgery-has-predictive-value-for-colorectal-anastomotic-leakage
#11
Jasper B van Praagh, Marcus C de Goffau, Ilsalien S Bakker, Harry van Goor, Hermie J M Harmsen, Peter Olinga, Klaas Havenga
OBJECTIVE: The aim of the present study is to investigate the association of gut microbiota, depending on treatment method, with the development of colorectal anastomotic leakage (AL). BACKGROUND: AL is a major cause for morbidity and mortality after colorectal surgery, but the mechanism behind this complication still is not fully understood. METHODS: Bacterial DNA was isolated from 123 "donuts" of patients where a stapled colorectal anastomosis was made and was analyzed using 16S MiSeq sequencing...
January 4, 2018: Annals of Surgery
https://www.readbyqxmd.com/read/29287803/transcriptional-profile-of-in-vitro-expanded-human-epidermal-progenitor-cells-for-the-treatment-of-non-healing-wounds
#12
Paulina Langa, Anna Wardowska, Jacek Zieliński, Justyna Podolak-Popinigis, Piotr Sass, Paweł Sosnowski, Karolina Kondej, Alicja Renkielska, Paweł Sachadyn, Piotr Trzonkowski, Michał Pikuła
BACKGROUND: Epidermal progenitor cells (EPCs) have been under extensive investigation due to their increasing potential of application in medicine and biotechnology. Cultured human EPCs are used in the treatment of chronic wounds and have recently became a target for gene therapy and toxicological studies. One of the challenges in EPCs culture is to provide a high number of undifferentiated, progenitor cells displaying high viability and significant biological activity. OBJECTIVES: The goal of this study was to characterize the in vitro cultured progenitor cells and to assess whether the cells with the progenitor phenotype are able to enhance wound healing...
December 13, 2017: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29284478/phoyunnanin-e-inhibits-migration-of-non-small-cell-lung-cancer-cells-via-suppression-of-epithelial-to-mesenchymal-transition-and-integrin-%C3%AE-v-and-integrin-%C3%AE-3
#13
Nareerat Petpiroon, Boonchoo Sritularak, Pithi Chanvorachote
BACKGROUND: The conversion of the epithelial phenotype of cancer cells into cells with a mesenchymal phenotype-so-called epithelial-mesenchymal transition (EMT)-has been shown to enhance the capacity of the cells to disseminate throughout the body. EMT is therefore becoming a potential target for anti-cancer drug discovery. Here, we showed that phoyunnanin E, a compound isolated from Dendrobium venustum, possesses anti-migration activity and addressed its mechanism of action. METHODS: The cytotoxic and proliferative effects of phoyunnanin E on human non-small cell lung cancer-derived H460, H292, and A549 cells and human keratinocyte HaCaT cells were investigated by MTT assay...
December 29, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29277539/skin-wound-healing-is-accelerated-by-a-lipid-mixture-representing-major-lipid-components-of-chamaecyparis-obtusa-plant-extract
#14
Byung Eui Kim, Elena Goleva, Clifton F Hall, Sang Hyun Park, Un Ha Lee, Anne M Brauweiler, Joanne E Streib, Brittany N Richers, Gwuicheol Kim, Donald Y M Leung
In chronic non-healing wounds, the healing process is disrupted and wounds are often infected with bacteria. About 85% of lower extremity amputations in diabetes are attributed to deep infection of foot ulcers. Therefore, infection control is critical for wound care. In this study, we analyzed lipid composition of Chamaecyparis (C) obtusa extract, and describe the wound healing properties of its combination of ten major lipid components. A 10 lipid mixture upregulated HBD-3 and LL-37 through the olfactory receptor 2AT4, and induced phosphorylation of extracellular signal-regulated kinases and p38 mitogen-activated protein kinases in primary human keratinocytes...
December 22, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29240273/endothelial-dysfunction-may-promote-keloid-growth
#15
Chikage Noishiki, Gen Takagi, Yoshiaki Kubota, Rei Ogawa
Keloid is a cutaneous fibroproliferative disorder. It results from impaired wound healing that generates persistent inflammation and extensive deposition of collagen fibers in the wound/scar. Keloids tend to be worse in hypertensive patients. The present prospective cross-sectional study assessed whether endothelial dysfunction, which occurs in hypertension, associates with keloid formation and progression. This study included randomly-selected patients with keloids who were assessed for surgical keloid treatment in 2013-2014...
December 14, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/29226477/cell-therapy-for-critical-limb-ischemia-an-integrated-review-of-pre-clinical-and-clinical-studies
#16
REVIEW
Mohammad Qadura, Daniella C Terenzi, Subodh Verma, Mohammed Al-Omran, David A Hess
Critical limb ischemia (CLI), the most severe form of peripheral artery disease, is characterized by pain at rest and non-healing ulcers in the lower extremities. For patients with CLI, where the extent of atherosclerotic artery occlusion is too severe for surgical bypass or percutaneous interventions, limb amputation remains the only treatment option. Thus, cell-based therapy to restore perfusion and promote wound healing in patients with CLI is under intense investigation. Despite promising preclinical studies in animal models, transplantation of bone marrow (BM) derived cell populations in patients with CLI has shown limited benefit preventing limb amputation...
December 11, 2017: Stem Cells
https://www.readbyqxmd.com/read/29218493/direct-biological-effects-of-fractional-ultrapulsed-co2-laser-irradiation-on-keratinocytes-and-fibroblasts-in-human-organotypic-full-thickness-3d-skin-models
#17
L Schmitt, S Huth, P M Amann, Y Marquardt, R Heise, K Fietkau, L Huth, T Steiner, F Hölzle, J M Baron
Molecular effects of various ablative and non-ablative laser treatments on human skin cells-especially primary effects on epidermal keratinocytes and dermal fibroblasts-are not yet fully understood. We present the first study addressing molecular effects of fractional non-sequential ultrapulsed CO2 laser treatment using a 3D skin model that allows standardized investigations of time-dependent molecular changes ex vivo. While histological examination was performed to assess morphological changes, we utilized gene expression profiling using microarray and qRT-PCR analyses to identify molecular effects of laser treatment...
December 7, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29216188/monitoring-wound-healing-in-a-3d-wound-model-by-hyperspectral-imaging-and-efficient-clustering
#18
Mirwaes Wahabzada, Manuela Besser, Milad Khosravani, Matheus Thomas Kuska, Kristian Kersting, Anne-Katrin Mahlein, Ewa Stürmer
Wound healing is a complex and dynamic process with different distinct and overlapping phases from homeostasis, inflammation and proliferation to remodelling. Monitoring the healing response of injured tissue is of high importance for basic research and clinical practice. In traditional application, biological markers characterize normal and abnormal wound healing. Understanding functional relationships of these biological processes is essential for developing new treatment strategies. However, most of the present techniques (in vitro or in vivo) include invasive microscopic or analytical tissue sampling...
2017: PloS One
https://www.readbyqxmd.com/read/29214666/low-level-ultrahigh-frequency-and-ultrashort-pulse-blue-laser-irradiation-enhances-osteoblast-extracellular-calcification-by-upregulating-proliferation-and-differentiation-via-transient-receptor-potential-vanilloid-1
#19
Risako Mikami, Koji Mizutani, Akira Aoki, Yukihiko Tamura, Kazuhiro Aoki, Yuichi Izumi
BACKGROUND AND OBJECTIVE: Low-level laser irradiation (LLLI) exerts various biostimulative effects, including promotion of wound healing and bone formation; however, few studies have examined biostimulation using blue lasers. The purpose of this study was to investigate the effects of low-level ultrahigh-frequency (UHF) and ultrashort-pulse (USP) blue laser irradiation on osteoblasts. STUDY DESIGN/ MATERIALS AND METHODS: The MC3T3-E1 osteoblast cell line was used in this study...
December 7, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29212226/transcribed-ultraconserved-region-uc-63-promotes-resistance-to-docetaxel-through-regulation-of-androgen-receptor-signaling-in-prostate-cancer
#20
Yohei Sekino, Naoya Sakamoto, Keisuke Goto, Ririno Honma, Yoshinori Shigematsu, Kazuhiro Sentani, Naohide Oue, Jun Teishima, Akio Matsubara, Wataru Yasui
Docetaxel is the standard chemotherapy for metastatic castration-resistant prostate cancer (CRPC). However, nearly all patients ultimately become refractory due to the development of docetaxel resistance. The transcribed ultraconserved regions (T-UCRs) are a novel class of non-coding RNAs that are absolutely conserved across species and are involved in carcinogenesis including prostate cancer (PC). In this study, we investigated the transcriptional levels of 26 representative T-UCRs and determined the regions that were differentially expressed in PC...
November 7, 2017: Oncotarget
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