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https://www.readbyqxmd.com/read/27920682/scleroderma-with-nodular-scleroderma
#1
Chutika Srisuttiyakorn, Kobkul Aunhachoke
BACKGROUND: Nodular scleroderma is a rare variant of scleroderma which can occur in connection with systemic sclerosis or morphea. A biopsy from the lesion can demonstrate the scleroderma pattern, i.e., keloid pattern or mixed type. Treatment is challenging, and several treatments modalities have been reported with unsatisfactory results. MAIN OBSERVATIONS: We present a case of systemic sclerosis in a 50-year-old female who developed nodular scleroderma in the absence of deterioration of the scleroderma condition...
September 2016: Case Reports in Dermatology
https://www.readbyqxmd.com/read/27915346/mir-181a-targets-phlpp2-to-augment-akt-signaling-and-regulate-proliferation-and-apoptosis-in-human-keloid-fibroblasts
#2
Zhen Rang, Zong-Yang Wang, Qiu-Yu Pang, You-Wei Wang, Ge Yang, Fan Cui
BACKGROUND/AIMS: Keloids are fibrous overgrowths induced by cutaneous injury. MicroRNAs (miRNAs) have recently emerged as post-transcriptional gene repressors and participants in a diverse array of pathophysiological processes leading to skin disease. The purpose of the current study was to explore the precise functions of miR-181a in human keloid development and the underlying mechanisms. METHODS: A miRNA microarray analysis was performed to compare expression profiles between keloid and normal skin tissues...
December 5, 2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27909731/hypoxia-drives-the-transition-of-human-dermal-fibroblasts-to-a-myofibroblast-like-phenotype-via-the-tgf-%C3%AE-1-smad3-pathway
#3
Bin Zhao, Hao Guan, Jia-Qi Liu, Zhao Zheng, Qin Zhou, Jian Zhang, Lin-Lin Su, Da-Hai Hu
Keloids, partially considered as benign tumors, are characterized by the overgrowth of fibrosis beyond the boundaries of the wound and are regulated mainly by transforming growth factor (TGF)-β1, which induces the transition of fibroblasts to myofibroblasts. Hypoxia is an important driving force in the development of lung and liver fibrosis by activating hypoxia inducible factor-1α and stimulating epithelial‑mesenchymal transition. However, it is unknown whether and hypoxia can influence human dermal scarring...
December 1, 2016: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/27897224/tgf-%C3%AE-1-induces-polypyrimidine-tract-binding-protein-to-alter-fibroblasts-proliferation-and-fibronectin-deposition-in-keloid
#4
Hu Jiao, Ping Dong, Li Yan, Zhigang Yang, Xiaoyan Lv, Qiuchen Li, Xianlei Zong, Jincai Fan, Xin Fu, Xia Liu, Ran Xiao
Human dermal fibrotic disease keloid has been a clinical challenge because of its tumour-like growth and the lack of effective therapy. Dysregulated alternative splicing events have been demonstrated in tumours and fibrosis. In the current study, for the first time, it was demonstrated that the splicing regulator polypyrimidine tract-binding protein (PTB), which plays a pivotal role in tumour proliferation, invasion and metastasis, is overexpressed in keloid tissues and fibroblasts. Additionally, TGF-β1 upregulated the expressions of PTB and its upstream regulator, C-MYC, in keloid fibroblasts...
November 29, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27894386/-study-of-the-correlation-between-the-expression-of-angiotensin-%C3%A2-and-its-receptors-and-collagen-deposition-in-human-keloid
#5
J J Chen, X J Wu, Z Y Zhang, Z X Chen, Y Cen
Objective: To study the correlation between the expression of angiotensin Ⅱ, angiotensin Ⅱ type 1 receptor (AT1R), angiotensin Ⅱ type 2 receptor (AT2R) and collagen deposition in human keloid. Methods: The keloid from 19 keloid patients and normal skin from 13 patients performed with free skin transplantation hospitalized in our unit from May 2014 to January 2015 were obtained. The expressions of angiotensin Ⅱ, AT1R, and AT2R were detected by immunohistochemical staining, and the results were semi-quantitatively analyzed by immunohistochemical scoring...
November 20, 2016: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/27892645/endothelial-cell-derived-endothelin-1-is-involved-in-abnormal-scar-formation-by-dermal-fibroblasts-through-rhoa-rho-kinase-pathway
#6
Koichiro Kiya, Tateki Kubo, Kenichiro Kawai, Shinsuke Matsuzaki, Rieko Muramatsu, Daisuke Maeda, Toshihiro Fujiwara, Akimitsu Nishibayashi, Shigeyuki Kanazawa, Kenji Yano, Genki Amano, Taiichi Katayama, Ko Hosokawa
Hypertrophic scars and keloids are characterized by excessive dermal deposition of extracellular matrix due to fibroblast-to-myofibroblast differentiation. Endothelin-1 (ET-1) is primarily produced by vascular endothelial cells, and plays multiple roles in the wound-healing response and organ fibrogenesis. In this study, we investigated the pathophysiological significance of ET-1 and involvement of RhoA, a member of the Rho GTPases, in hypertrophic scar/keloid formation. We found that ET-1 expression on dermal microvascular endothelial cells (ECs) in hypertrophic scars and keloids was higher than that in normal skin and mature scars...
November 28, 2016: Experimental Dermatology
https://www.readbyqxmd.com/read/27888895/treating-scars-in-the-auricle-region
#7
REVIEW
Deborah Watson, Bharat Panuganti
This article provides a review of the surgical and nonsurgical options available to manage a variety of auricular scars. The basics of wound healing are discussed in addition to the etiology of keloids and the cauliflower ear. Many auricular scars can be revised with scar excision techniques, but separate discussions for the treatment of keloids and the cauliflower ear are provided. The management plan for auricular scarring requires appropriate patient counseling regarding the risk of recurrence in keloids, regrowth of scar tissue in cauliflower ears, scar hypertrophy at the line of closure, widening of the scar, and persisting ear contour deformities...
February 2017: Facial Plastic Surgery Clinics of North America
https://www.readbyqxmd.com/read/27888448/a-randomized-single-blind-trial-of-clobetasol-propionate-0-05-cream-under-silicone-dressing-occlusion-versus-intra-lesional-triamcinolone-for-treatment-of-keloid
#8
Norazirah Md Nor, Rasimah Ismail, Adawiyah Jamil, Shamsul Azhar Shah, Farah Hani Imran
BACKGROUND AND OBJECTIVE: Keloid is conventionally treated with intra-lesional (IL) triamcinolone, which is highly operator dependent and has its own adverse effects. Topical steroid and silicone dressings are a patient friendly and non-invasive treatment alternative. We therefore sought to determine the efficacy and safety of topical clobetasol propionate (Dermovate(®)) 0.05% cream under occlusion with Mepiform(®) silicone dressing compared to IL triamcinolone in the treatment of keloid...
November 25, 2016: Clinical Drug Investigation
https://www.readbyqxmd.com/read/27882385/a-role-for-neuregulin-1-in-promoting-keloid-fibroblast-migration-via-erbb2-mediated-signaling
#9
Natalie Jumper, Tom Hodgkinson, Ralf Paus, Ardeshir Bayat
Keloid disease is a fibroproliferative tumour characterised by aggressive local invasion, evident from a clinically and histologically active migrating margin. During combined laser capture microdissection and microarray analysis-based in situ gene expression profiling, we identified upregulation of the polypeptide growth factor neuregulin-1 (NRG1) and ErbB2 oncogene in keloid margin dermis, leading to the hypothesis that NRG1 contributed to keloid margin migration through ErbB2-mediated signalling. The aim of this study was to probe this hypothesis through functional in vitro studies...
November 24, 2016: Acta Dermato-venereologica
https://www.readbyqxmd.com/read/27877046/comparative-effect-and-safety-of-verapamil-in-keloid-and-hypertrophic-scar-treatment-a-meta-analysis
#10
Zhouna Li, Zhehu Jin
BACKGROUND: Keloids and hypertrophic scars are the most common types of pathological scarring. Traditionally, keloids have been considered as a result of aberrant wound healing, involving excessive fibroblast participation that is characterized by hyalinized collagen bundles. However, the usefulness of this characterization has been questioned. In recent years, studies have reported the appropriate use of verapamil for keloids and hypertrophic scars. METHODS: Searches were conducted on the databases Medline, Embase, Cochrane, PubMed, and China National Knowledge Infrastructure from 2006 to July 2016...
2016: Therapeutics and Clinical Risk Management
https://www.readbyqxmd.com/read/27866969/overexpression-of-cd109-in-the-epidermis-differentially-regulates-alk1-versus-alk5-signaling-and-modulates-extracellular-matrix-synthesis-in-the-skin
#11
Joshua Vorstenbosch, Christopher M Nguyen, Shufeng Zhou, You Jung Seo, Aya Siblini, Kenneth W Finnson, Albane A Bizet, Simon D Tran, Anie Philip
Transforming growth factor-beta (TGF-β) is a multifunctional growth factor involved in many physiological processes including wound healing and inflammation. Excessive TGF-β signaling in the skin has been implicated in fibrotic skin disorders such as keloids and scleroderma. We have previously identified CD109 as a TGF- β co-receptor and inhibitor of TGF-ß signaling, and have shown that transgenic mice overexpressing CD109 in the epidermis display decreased scarring. In certain cell types, in addition to the canonical type I receptor, ALK5 which activates Smad2/3, TGF-β can signal through another type I receptor ALK1 which activates Smad1/5...
November 17, 2016: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/27865791/efficacy-of-2-representative-topical-agents-to-prevent-keloid-recurrence-after-surgical-excision
#12
REVIEW
Jin Yong Shin, Seok-Kweon Yun, Si-Gyun Roh, Nae-Ho Lee, Kyung-Moo Yang
PURPOSE: Keloids are difficult to remove successfully and there is no universally accepted treatment. After surgical excision of the keloid, there are various management methods for prevention of keloid recurrence, such as intralesional injection, radiation, and topical agents. A few studies have compared topical agents with other treatments. The aim of this study was to investigate effective topical agents for the prevention of recurrent keloid after surgical excision. MATERIALS AND METHODS: Eligible articles were sought using core databases, including Medline, Embase, and Cochrane databases, up to April 2016...
October 25, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/27855376/growth-differentiation-factor-9-promotes-fibroblast-proliferation-and-migration-in-keloids-through-the-smad2-3-pathway
#13
Zhaohua Jiang, Qingxiong Yu, Lingling Xia, Yi Zhang, Xiuxia Wang, Xiaoli Wu, Zhen Gao
BACKGROUND: Keloids are fibroproliferative scars that develop as a result of a dysregulated wound healing process; however, the molecular mechanisms of keloid pathogenesis remain unclear. Keloids are characterized by the ability to spread beyond the original boundary of the wound, and they represent a significant clinical challenge. Previous work from our group suggested that growth differentiation factor (GDF)-9 plays a role in the invasive behavior of keloids. Here, we examined the involvement of GDF-9 in keloid formation and spread and elucidated a potential underlying mechanism...
2016: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/27847546/topical-silicone-sheet-application-in-the-treatment-of-hypertrophic-scars-and-keloids
#14
Iris Westra, Frank B Niessen
Objective: Since the early 1980s, topical silicone sheets have been used in the treatment of hypertrophic scars and keloids.This study aimed to determine the optimal duration and application of these sheets. Design: multi-centered therapeutic study. Setting and participants: A total of 224 patients were included in this study; 205 patients with hypertrophic scars and 19 patients with keloids. Patients received treatment with a topical silicone sheet. Treated scars varied in age, ranging from two weeks to 62 years and treatment time ranged from one month to 16 months...
October 2016: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/27843936/the-biomechanics-and-optimization-of-the-needle-syringe-system-for-injecting-triamcinolone-acetonide-into-keloids
#15
Anthony Vo, Marc Doumit, Gloria Rockwell
Purpose. Injecting triamcinolone acetonide (TA) into a keloid is physically challenging due to the density of keloids. The purpose was to investigate the effects of various syringe and needle combinations on the injection force to determine the most ergonomic combination. Materials and Methods. A load cell was used to generate and measure the injection force. Phase 1: the injection force of 5 common syringes was measured by injecting water into air. The syringe that required the lowest injection force was evaluated with various needle gauges (25, 27, and 30 G) and lengths (16, 25, and 38 mm) by injecting TA (40 mg/mL) into air...
2016: Journal of Medical Engineering
https://www.readbyqxmd.com/read/27830056/neck-keloids-evaluation-of-risk-factors-and-recommendation-for-keloid-staging-system
#16
Michael H Tirgan
Importance: Health care providers have long struggled with recurrent and hard to treat keloids.   Advancing our understanding of natural history and risk factors for development of large, very large and massive neck keloids can lead to improved treatment outcomes. Clinical staging system for the categorization of keloid lesions, as well as grouping of keloid patients according to the extent of skin involvement is both fundamental for design and delivery of proper plan of care and an absolute necessity for methodical trial design and interpretation of the results thereof...
2016: F1000Research
https://www.readbyqxmd.com/read/27829382/corneal-keloid-four-case-reports-of-clinicopathological-features-and-surgical-outcome
#17
Hyo Kyung Lee, Hyuk Jin Choi, Mee Kum Kim, Won Ryang Wee, Joo Youn Oh
BACKGROUND: Surgical outcome of corneal keloid is largely variable depending on reports, although surgical management is inevitable in visually significant cases. We here report clinical features, histopathological findings, and surgical outcome of four cases of corneal keloid. CASE PRESENTATION: Four Korean male patients without a history of corneal trauma or disease were clinically and histologically evaluated for a slowly-growing, white opacity in the cornea...
November 9, 2016: BMC Ophthalmology
https://www.readbyqxmd.com/read/27812490/comparing-two-methods-of-cryotherapy-and-intense-pulsed-light-with-triamcinolone-injection-in-the-treatment-of-keloid-and-hypertrophic-scars-a-clinical-trial
#18
Simin Shamsi Meymandi, Mahmood Moosazadeh, Azadeh Rezazadeh
OBJECTIVES: Keloid and hypertrophic scars are abnormal manifestations of wounds that occur following skin injuries in the form of local proliferation of fibroblasts and increased production of collagen. There are several ways to cure these scars; treatment must be selected based on the nature of the scars. In this clinical trial, two methods-cryotherapy and intense pulsed light (IPL)-are compared in the treatment of scars, and the results are presented in terms of improvement level, complications, and patient satisfaction...
October 2016: Osong Public Health and Research Perspectives
https://www.readbyqxmd.com/read/27796064/measurements-of-scar-properties-by-skinfibrometer-%C3%A2-skinglossmeter-%C3%A2-and-mexameter-%C3%A2-and-comparison-with-vancouver-scar-scale
#19
S R Seo, N O Kang, M S Yoon, H J Lee, D H Kim
BACKGROUND: An objective measurement of scar is important for evaluating treatment outcomes. However, to date, there is no 'gold standard' for quantitative measurement of properties of hypertrophic scar. Existing objective modalities are neither portable nor easy to use. OBJECTIVE: This study aims to validate the correlation between objective measurements with SkinFibrometer(®) , SkinGlossMeter(®) , and Mexameter(®) and subjective assessment with Vancouver Scar Scale (VSS) of keloid and hypertrophic scar...
October 30, 2016: Skin Research and Technology
https://www.readbyqxmd.com/read/27784253/the-effectiveness-of-topical-anti-scarring-agents-and-a-novel-combined-process-on-cutaneous-scar-management
#20
Qing-Qing Fang, Chun- Ye Chen, Min-Xia Zhang, Chun-Lan Huang, Xiao-Wei Wang, Ji-Hua Xu, Li-Hong Wu, Li-Yun Zhang, Wei-Qiang Tan
Cutaneous scars (particularly hypertrophic and keloid scars), always follow after a dermal injury to the skin cutaneous scars leave a negative impact on people, both physically and mentally. Comparing to other surgical treatments, patients who do not opt for or can't opt for invasion therapy are more eligible for using the topical anti-scarring agents. In this mini-review, we have researched for and collected the data between October 2005 and October 2015, in PubMed and Web of Science, and identified those agents including silicone-based products, imiquimod, corticosteroids, 5- fluorouracil, bleomycin, mitomycin, and plant extracts such as onion extract, asiaticoside, aloe vera, vitamin E, and so on...
October 25, 2016: Current Pharmaceutical Design
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