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Non-healing wounds treatments

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https://www.readbyqxmd.com/read/28817808/ppar%C3%AE-agonist-stimulated-angiogenesis-by-improving-endothelial-precursor-cell-function-via-a-nlrp3-inflammasome-pathway
#1
Yaping Deng, Xue Han, Zheng Yao, Yuannan Sun, Jiawen Yu, Jian Cai, Guofei Ren, Guojun Jiang, Feng Han
BACKGROUND: Impaired wound healing is a common complication of diabetes and is the leading cause of lower extremity amputation. Treatment with fenofibrate, a peroxisome proliferators-activated receptor α (PPARα) agonist, was associated with a lower risk of amputations, particularly minor amputations without known large-vessel diseases, probably through non-lipid mechanisms. The current study aimed to test our hypothesis that fenofibrate stimulates angiogenesis and restores endothelial precursor cell (EPC) function via inhibiting Nod-like receptor protein 3 (NLRP3) inflammasome in streptozotocin (STZ)-induced diabetic mice...
August 16, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28817237/dysregulation-of-wound-healing-mechanisms-in-diabetes-and-the-importance-of-negative-pressure-wound-therapy-npwt
#2
Mogher Khamaisi, Sarit Balanson
Diabetes is a serious disease with severe side effects and comorbidities. Diabetic foot with its chronic non-healing ulcers, or diabetic food ulcers (DFU) as they are commonly called, can be devastating, even leading to amputation. Many therapies exist to assist and improve wound healing. One exciting discovery is the use of negative pressure wound therapy (NPWT) as an adjunct to standard treatment. Few studies have substantively explored the molecular mechanisms of NPWT and why we see improved wound healing, a concept that demands more research...
August 17, 2017: Diabetes/metabolism Research and Reviews
https://www.readbyqxmd.com/read/28815643/early-intervention-with-non-ablative-fractional-laser-to-improve-cutaneous-scarring-a-randomized-controlled-trial-on-the-impact-of-intervention-time-and-fluence-levels
#3
Katrine E Karmisholt, Emily Wenande, Daniel Thaysen-Petersen, Peter A Philipsen, Uwe Paasch, Merete Haedersdal
BACKGROUND AND OBJECTIVES: Laser treatment in the early phases of wound healing may reduce scar formation. However, little is known on when in the early wound healing phases laser exposure most optimally should be provided and at which fluence levels. This study investigates the clinical effect of non-ablative-fractional-laser (NAFL) performed at three early time points at a range of fluence levels versus untreated control scars. MATERIALS AND METHODS: A randomized, controlled, intra-individual trial with erbium-glass 1,540 nm NAFL versus no laser treatment on sixteen subjects receiving 10 standardized full-thickness punch-biopsy wounds...
August 16, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28810544/microrna-9-inhibits-the-proliferation-and-migration-of-malignant-melanoma-cells-via-targeting-sirituin-1
#4
Pingyuan Bu, Chengqun Luo, Quanyong He, Ping Yang, Xi Li, Dan Xu
MicroRNA (miR) are a class of small non-coding RNA that are able to inhibit gene expression by directly binding to the 3' untranslated region (UTR) of their target mRNA and thus promote translational repression or mRNA degradation. Recently, miR-9 was reported to have a suppressive role in malignant melanoma; however, the underlying mechanism remains largely unclear. In the present study, reverse transcription-quantitative polymerase chain reaction (RT-qPCR) and western blotting were used to examine the mRNA and protein expression levels in malignant melanoma tissues and cell lines...
August 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28810449/the-importance-of-relationships-in-treatment-for-chronic-leg-ulceration
#5
Philippa Tollow, Jane Ogden
Leg ulcers are a hard-to-heal wound that can have a profound impact on the lives of those that they affect. While a significant body of evidence has explored the efficacy of various treatments for leg ulcers, little research has addressed the patient experience of such treatment. A total of 21 participants were recruited for this qualitative interview study, exploring patient's experiences of non-surgical treatment for leg ulcers. Thematic analysis identified two major themes, 'Failure' and 'Powerlessness', as well as the overarching theme of 'Relationships'...
May 1, 2017: Journal of Health Psychology
https://www.readbyqxmd.com/read/28804548/overexpression-of-pten-suppresses-non-small-cell-lung-carcinoma-metastasis-through-inhibition-of-integrin-%C3%AE-v%C3%AE-6-signaling
#6
Yan Xia Yu, Yi Wang, Hong Liu
Studies have demonstrated that the abnormal expression of phosphatase and tensin homolog deleted on chromosome 10 (PTEN) is associated with multiple malignancies, but its functional role in non-small-cell lung carcinoma (NSCLC) metastasis remains to be elucidated. In the present study, we investigated the role of PTEN in regulating proliferation, migration, and invasion of NSCLC cells by establishing NSCLC cell strains with constitutively silenced or elevated PTEN expression. We demonstrated that ectopic expression of PTEN inhibits migration and invasion of NSCLC cells in vitro through wound healing and Transwell invasion assays...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28802553/effect-of-cold-argon-plasma-on-eggs-of-the-blow-fly-lucilia-cuprina-diptera-calliphoridae
#7
Kwankamol Limsopatham, Dheerawan Boonyawan, Chanchai Umongno, Kabkaew L Sukontason, Tarinee Chaiwong, Rattana Leksomboon, Kom Sukontason
Non-thermal plasma has been used in many medical applications, including treatment of living cells, blood coagulation, wound healing, and sterilization. The process uses an environmentally friendly gas (e.g., argon, helium, oxygen, nitrogen, or hydrogen) to destroy bacteria cells with no serious adverse effect on humans or animals. However, information on the effect of argon plasma on blow fly eggs is lacking. In this study, we explored the ability of cold argon plasma to destroy the eggs of the Australian sheep blow fly, Lucilia cuprina (Wiedemann, 1830); its larvae are a myiasis-producing agent in both human and animals...
August 9, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28799228/chitin-and-chitosan-biopolymers-for-wound-management
#8
Rita Singh, Kirti Shitiz, Antaryami Singh
Chitin and chitosan are biopolymers with excellent bioactive properties, such as biodegradability, non-toxicity, biocompatibility, haemostatic activity and antimicrobial activity. A wide variety of biomedical applications for chitin and chitin derivatives have been reported, including wound-healing applications. They are reported to promote rapid dermal regeneration and accelerate wound healing. A number of dressing materials based on chitin and chitosan have been developed for the treatment of wounds. Chitin and chitosan with beneficial intrinsic properties and high potential for wound healing are attractive biopolymers for wound management...
August 10, 2017: International Wound Journal
https://www.readbyqxmd.com/read/28791375/long-non%C3%A2-coding-rna-hoxa11%C3%A2-as-promotes-cell-proliferation-and-metastasis-in-human-breast-cancer
#9
Jian-Chun Su, Xue-Feng Hu
Breast cancer is one of the most frequently occurring malignancies in female cancers worldwide, however, its detailed mechanism of tumorigenesis remains to be elucidated. Long non-coding RNAs (LncRNAs) have previously been demonstrated to be important in multiple cancers, including breast cancer. The present study aimed to elucidate the molecular mechanism of the effects of the novel Lnc RNA HOXA11‑AS, on cell proliferation and metastasis in breast cancer. The data revealed that the relative transcript level of HOXA11‑AS was upregulated in vivo and in vitro in models of breast cancer...
August 3, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28782549/a-review-of-the-evidence-for-in-vivo-corneal-endothelial-regeneration
#10
REVIEW
Bert Van den Bogerd, Sorcha Ní Dhubhghaill, Carina Koppen, Marie-José Tassignon, Nadia Zakaria
Human corneal endothelium has long been thought to be a non-mitotic cell layer with no endogenous reparative potential. Pathologies that damage endothelial function result in corneal decompensation and, if untreated, blindness. The mainstay of treatment involves partial or complete corneal replacement, amounting to 40% of all corneal transplants performed worldwide. We summarize the case reports describing complications post-operatively in the form of (sub)total graft detachment and those resulting in post-operative bare stroma...
August 3, 2017: Survey of Ophthalmology
https://www.readbyqxmd.com/read/28765825/comparison-of-the-effect-of-prp-prf-and-induced-bleeding-in-the-revascularization-of-teeth-with-necrotic-pulp-and-open-apex-a-triple-blind-randomized-clinical-trial
#11
Vasundara Yayathi Shivashankar, Dexton Antony Johns, Ramesh Kumar Maroli, Mahalaxmi Sekar, Rathinavel Chandrasekaran, Shanmugavel Karthikeyan, Senthil Kumar Renganathan
INTRODUCTION: Treatment of a tooth with necrotic pulp and open apex is a special challenge to the clinicians. Apexification with calcium hydroxide and MTA barrier technique fails to induce continued root maturation which makes the tooth susceptible to root fracture. Hence, an ideal outcome for such a tooth should be regeneration of pulp like tissue into the root canal capable of continuing normal root maturation. AIM: This study aims to compare the effect of Platelet Rich Fibrin (PRF), induced bleeding technique and Platelet Rich Plasma (PRP) in the revascularization of tooth with necrotic pulp and open apex...
June 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28757325/scar-management-in-burn-injuries-using-drug-delivery-and-molecular-signaling-current-treatments-and-future-directions
#12
REVIEW
Saeid Amini-Nik, Yusef Yousuf, Marc G Jeschke
In recent decades, there have been tremendous improvements in burn care that have allowed patients to survive severe burn injuries that were once fatal. However, a major limitation of burn care currently is the development of hypertrophic scars in approximately 70% of patients. This significantly decreases the quality of life for patients due to the physical and psychosocial symptoms associated with scarring. Current approaches to manage scarring include surgical techniques and non-surgical methods such as laser therapy, steroid injections, and compression therapy...
July 27, 2017: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28756902/bevacizumab-for-advanced-cervical-cancer-final-overall-survival-and-adverse-event-analysis-of-a-randomised-controlled-open-label-phase-3-trial-gynecologic-oncology-group-240
#13
Krishnansu S Tewari, Michael W Sill, Richard T Penson, Helen Huang, Lois M Ramondetta, Lisa M Landrum, Ana Oaknin, Thomas J Reid, Mario M Leitao, Helen E Michael, Philip J DiSaia, Larry J Copeland, William T Creasman, Frederick B Stehman, Mark F Brady, Robert A Burger, J Tate Thigpen, Michael J Birrer, Steven E Waggoner, David H Moore, Katherine Y Look, Wui-Jin Koh, Bradley J Monk
BACKGROUND: On Aug 14, 2014, the US Food and Drug Administration approved the antiangiogenesis drug bevacizumab for women with advanced cervical cancer on the basis of improved overall survival (OS) after the second interim analysis (in 2012) of 271 deaths in the Gynecologic Oncology Group (GOG) 240 trial. In this study, we report the prespecified final analysis of the primary objectives, OS and adverse events. METHODS: In this randomised, controlled, open-label, phase 3 trial, we recruited patients with metastatic, persistent, or recurrent cervical carcinoma from 81 centres in the USA, Canada, and Spain...
July 27, 2017: Lancet
https://www.readbyqxmd.com/read/28755927/short-communication-repeated-mammary-tissue-collections-during-lactation-do-not-alter-subsequent-milk-yield-or-composition
#14
X Weng, A P A Monteiro, J Guo, B M S Ahmed, J K Bernard, D J Tomlinson, J M DeFrain, G E Dahl, S Tao
Mammary biopsy collection (MB) is a valuable approach for studying mammary gland biology, but it is unclear if repeated MB impair the performance of lactating dairy cows. The objective of this trial was to examine the effect of repeated MB during lactation on udder health, dry matter intake (DMI), and lactation performance of lactating dairy cows. Sixty-four multiparous, mid-lactation Holstein cows were enrolled in a 29-wk trial, and 32 cows were randomly selected for repeated MB. The MB and non-MB (NMB) cows had similar parity (2...
July 26, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28751213/evaluation-of-dermal-wound-healing-activity-of-synthetic-peptide-svvyglr
#15
Ayako Uchinaka, Naomasa Kawaguchi, Tsuyoshi Ban, Yoshinosuke Hamada, Seiji Mori, Yoshitaka Maeno, Yoshiki Sawa, Kohzo Nagata, Hirofumi Yamamoto
SVVYGLR peptide (SV peptide) is a 7-amino-acid sequence with angiogenic properties that is derived from osteopontin in the extracellular matrix and promotes differentiation of fibroblasts to myofibroblast-like cells and the production of collagen type Ⅲ by cardiac fibroblasts. However, the effects of SV peptide on dermal cells and tissue are unknown. In this study, we evaluated the effects of this peptide in a rat model of dermal wound healing. The synthetic SV peptide was added to dermal fibroblasts or keratinocytes, and their cellular motility was evaluated...
July 24, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28750103/bacterial-diversity-in-buruli-ulcer-skin-lesions-challenges-in-the-clinical-microbiome-analysis-of-a-skin-disease
#16
Chloé Van Leuvenhaege, Koen Vandelannoote, Dissou Affolabi, Françoise Portaels, Ghislain Sopoh, Bouke C de Jong, Miriam Eddyani, Conor J Meehan
BACKGROUND: Buruli ulcer (BU) is an infectious disease caused by Mycobacterium ulcerans and considered the third most prevalent mycobacterial disease in humans. Secondary bacterial infections in open BU lesions are the main cause of pain, delayed healing and systemic illness, resulting in prolonged hospital stay. Thus, understanding the diversity of bacteria, termed the microbiome, in these open lesions is important for proper treatment. However, adequately studying the human microbiome in a clinical setting can prove difficult when investigating a neglected tropical skin disease due to its rarity and the setting...
2017: PloS One
https://www.readbyqxmd.com/read/28745656/-effect-of-medicinal-treatment-on-epithelial-wound-healing-after-phacoemulsification
#17
E V Tomilova, M N Nemsitsveridze, I E Panova
AIM: to compare the dynamics of epithelial wound healing under two different post-op treatments in patients after uncomplicated phacoemulsification. MATERIAL AND METHODS: This prospective randomized clinical trial included 40 eyes of 40 patients aged 66.4±8.2 years who underwent uncomplicated phacoemulsification with flexible intraocular lens implantation through a 2.2-mm corneal incision. Patients were randomized to receive either dexamethasone 0.1% and diclofenac 0...
2017: Vestnik Oftalmologii
https://www.readbyqxmd.com/read/28738797/tibiotalocalcaneal-ttc-arthrodesis-with-reverse-philos-plate-and-medial-cannulated-screws-with-lateral-approach
#18
Jian Fan, X Zhang, Y Luo, G W You, W K Ng, Y F Yang
BACKGROUND: Tibiotalocalcaneal arthrodesis is most common and effective surgical treatment for severe hindfoot pathology, but the fusion rate is often lower than the ordinary tibiotalar arthrodesis because of the more serious joint disease associated with obvious deformity and osteoporosis. Recent literature describe tibiotalocalcaneal arthrodesis with reverse PHILOS plate with good clinical outcome result, though some patients non-union, due to eccentric force of the plate may be hidden...
July 24, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28733702/anti-invasive-effects-of-cxcr4-and-fak-inhibitors-in-non-small-cell-lung-carcinomas-with-mutually-inactivated-p53-and-pten-tumor-suppressors
#19
Miodrag Dragoj, Jasna Bankovic, Evangelia Sereti, Sofija Jovanovic Stojanov, Konstantinos Dimas, Milica Pesic, Tijana Stankovic
Non-small cell lung carcinoma (NSCLC) is the most common type of lung cancer. At the time of diagnosis, a large percentage of NSCLC patients have already developed metastasis, responsible for extremely high mortality rates. CXCR4 receptor and focal adhesion kinase (FAK) are known to regulate such invasive cancer behavior. Their expression is downregulated by p53 and PTEN tumor suppressors which are commonly co-inactivated in NSCLC patients and contribute to metastasis. Therefore, targeting CXCR4 or FAK seems to be a promising strategy in suppressing metastatic spread of p53/PTEN deficient NSCLCs...
July 22, 2017: Investigational New Drugs
https://www.readbyqxmd.com/read/28732849/preparation-and-in-vitro-evaluation-of-fgf-2-incorporated-carboxymethyl-chitosan-nanoparticles
#20
Cong-Thuan Nguyen, Thanh-Thao Nguyen, Thu-Thuy Nguyen, Phuong Phong Thi Nguyen, Anh Dzung Nguyen, Linh Thuoc Tran, Hieu Tran-Van
Fibroblast growth factor 2 (FGF-2) is a multi-functional protein involving in wound healing. However, FGF-2 is easily degradable in vivo, which limited its use for wound treatment. In this study, we investigated a drug-delivery model for FGF-2 via incorporation with biodegradable carboxylmethyl chitosan (CMCS). CMCS nanoparticles (NPs) could be synthesized by ionic gelation using CaCl2 as a crosslinking reagent with the CMCS:CaCl2 ratio of 1:0.8. Synthesized CMCS NPs had a diameter of 32.68±6.83nm, and were non-toxic at concentrations up to 2...
October 1, 2017: Carbohydrate Polymers
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