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Keloideal scars

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https://www.readbyqxmd.com/read/28403507/endothelial-dysfunction-and-mechanobiology-in-pathological-cutaneous-scarring-lessons-learned-from-soft-tissue-fibrosis
#1
REVIEW
C Huang, L Liu, Z You, Y Zhao, J Dong, Y Du, R Ogawa
Hypertrophic scars/keloids are pathogenic scars that are characterized by collagen and fibroblast accumulation. The endothelia in the lesions are mechanosensitive and participate actively in the pathogenesis of these scars. The present review summarizes how endothelium responds to mechanical stimuli such as shear, stretch, and hydrostatic pressure. It also shows that in heart, liver, kidney, and lung fibrosis, endothelial dysfunctions (EDs) associate with changes in vascular tone, endothelial permeability, coagulation, and vasomodulation that result in inflammation, hypertension, and coagulation...
April 12, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28403263/microneedling-in-all-skin-types-a-review
#2
Lauren Meshkov Bonati, Gorana Kuka Epstein, Tamara Lazic Strugar
<p>INTRODUCTION: Microneedling procedures are growing in popularity for a wide variety of skin conditions. This paper comprehensively reviews the medical literature regarding skin needling efficacy and safety in all skin types and in multiple dermatologic conditions.</p> <p>METHODS: A PubMed literature search was conducted in all languages without restriction and bibliographies of relevant articles reviewed. Search terms included: "microneedling," "percutaneous collagen induction," "needling," "skin needling," and "dermaroller...
April 1, 2017: Journal of Drugs in Dermatology: JDD
https://www.readbyqxmd.com/read/28388720/new-uses-of-abobotulinumtoxina-in-aesthetics
#3
Joel Schlessinger, Erin Gilbert, Joel L Cohen, Joely Kaufman
BotulinumtoxinA (BoNT-A) is now widely established for the main approved indication of reducing glabellar lines, and is also widely used off-label to improve the appearance of wrinkles and lines in other parts of the face. The number of aesthetic procedures continues to increase as the patient population becomes more diverse, in particular with increasing numbers of people of color and men. Further developments in treatment may continue to expand the audience for BoNT-A by making procedures more comfortable and by delivering a more natural, less static appearance...
May 1, 2017: Aesthetic Surgery Journal
https://www.readbyqxmd.com/read/28370943/hypochlorous-acid-gel-technology-its-impact-on-postprocedure-treatment-and-scar-prevention
#4
REVIEW
Michael H Gold, Anneke Andriessen, Steven H Dayan, Sabrina G Fabi, Z Paul Lorenc, Meagan-Helen Henderson Berg
BACKGROUND: A pre-and postprocedure regime aimed at prevention of infection, reduction of inflammation and risk of scarring, is to enable optimal outcomes. OBJECTIVES: The role of a hypochlorous acid containing spray and translucent scar gel formulation that combines modified silicon oil with hypochlorous acid, was explored for pre- and postprocedure treatment and scar management. METHODS: For this purpose a literature review was conducted to explore the value of the technology used in pre-and postprocedural regimes...
March 30, 2017: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/28370679/secreted-factors-from-equine-mesenchymal-stromal-cells-diminish-the-effects-of-tgf-%C3%AE-1-on-equine-dermal-fibroblasts-and-alter-the-phenotype-of-dermal-fibroblasts-isolated-from-cutaneous-fibroproliferative-wounds
#5
Rebecca M Harman, Ivanna V Bihun, Gerlinde R Van de Walle
The prevalence of cutaneous fibroproliferative disorders (CFPDs) is high and almost exclusively occurs in humans (keloids and hypertrophic scars) and horses (exuberant granulation tissue), making the horse a valuable translational model for studies on prevention and treatment of human CFPDs. CFPDs arise as a result of dysregulated wound healing characterized by persistently high levels of cytokines, such as transforming growth factor beta 1 (TGF-β1), that contribute to excessive extracellular matrix deposition, and the physical disorganization of dermal fibroblasts...
April 1, 2017: Wound Repair and Regeneration
https://www.readbyqxmd.com/read/28346732/asiaticoside-hinders-the-invasive-growth-of-keloid-fibroblasts-through-inhibition-of-the-gdf-9-mapk-smad-pathway
#6
Xin Wu, Difei Bian, Yannong Dou, Zhunan Gong, Qian Tan, Yufeng Xia, Yue Dai
Higher expression of growth differentiation factor-9 (GDF-9) in keloids compared with hypertrophic scars and normal skin tissues has been reported recently. The present study was performed to investigate the role of GDF-9 in keloid pathogenesis, and to elucidate its implication for asiaticoside in the keloid management. The data showed that GDF-9 could enhance the proliferation, migration, and invasion of keloid fibroblasts (KFs), while it only slightly elevated collagen expression, indicating that the effect of GDF-9 was opposite to that of TGF-β1...
March 27, 2017: Journal of Biochemical and Molecular Toxicology
https://www.readbyqxmd.com/read/28293527/the-use-of-silgel-stc-se-a-topical-silicone-gel-for-the-treatment-and-reduction-of-hypertrophic-and-keloid-scars
#7
Sharon A Stewart, Greig M G Dougall, Erica M Tafuro
BACKGROUND: A single-center study assessing the efficacy of Nagor's Silgel STC-SE silicone gel to reduce the appearance of hypertrophic and keloid scars. METHODS: A 16-week controlled study of 36 patients with hypertrophic or keloid scars. The subjects were divided between 2 cohorts: one assessing recently healed scars (<6 mo) and other assessing older scars (6 mo to 2 y). The efficacy of Silgel STC-SE on the scar was evaluated by skin hydration, skin moisture evaporation, skin elasticity, basic scar measurements, subjective patient questionnaire data, and image analysis...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28287424/keloid-and-hypertrophic-scars-are-the-result-of-chronic-inflammation-in-the-reticular-dermis
#8
REVIEW
Rei Ogawa
Keloids and hypertrophic scars are caused by cutaneous injury and irritation, including trauma, insect bite, burn, surgery, vaccination, skin piercing, acne, folliculitis, chicken pox, and herpes zoster infection. Notably, superficial injuries that do not reach the reticular dermis never cause keloidal and hypertrophic scarring. This suggests that these pathological scars are due to injury to this skin layer and the subsequent aberrant wound healing therein. The latter is characterized by continuous and histologically localized inflammation...
March 10, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28244902/vibration-anesthesia-for-pain-reduction-during-intralesional-steroid-injection-for-keloid-treatment
#9
Kui Young Park, Yohan Lee, Ji Yeon Hong, Won Soon Chung, Myeung Nam Kim, Beom Joon Kim
BACKGROUND: Patients suffer significant pain during intralesional steroid injection treatment for keloids and hypertrophic scars. Vibration anesthesia has been shown to effectively and safely alleviate pain sensations, likely by reducing pain transmission from peripheral receptors to the brain. OBJECTIVE: The objective was to evaluate the efficacy, safety, and patient satisfaction associated with vibration anesthesia for reducing pain during intralesional corticosteroid injection...
February 27, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28219131/-recombinant-human-bone-morphogenetic-protein-7-inhibits-the-proliferation-and-extracellular-matrix-secretion-of-fibroblast-of-urethral-scars
#10
Y Wu, L M Ma, B Cai, H L Li, Q W Xing
Objective: To study the effect and its mechanism of recombinant human bone morphogenetic protein 7 (rhBMP-7) on urethral keloid fibroblast. Methods: Urethral fibroblasts were extracted and cultured, and the fourth-generation fibroblasts were used for experiment. Urethral fibroblasts were treated with rhBMP-7. Proliferation rate was detected by CCK-8 method. RT-PCR was applied to test changes of mRNA in α smooth muscle actin (α-SMA) and type Ⅰ collagen protein (COL-1) of each group. Western blot was used to measure α-SMA protein expression and the effect of rhBMP-7 on signaling pathway of urethral keloid fibroblasts...
February 14, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28216825/surgical-excision-and-contoured-custom-made-splint-to-treat-helical-keloid
#11
Ankita Chamaria, Reuben Fernando De Sousa, Meena Ajay Aras, Kennedy Mascarenhas
Helical keloids are difficult to treat as surgical excision requires effective compression of the operative scar to prevent recurrence while retaining the contour and elasticity of the helix. The authors fabricated a conforming custom made post-operative splint from a commonly used dental material. Splints could be fabricated in both pre-operative and post-operative stage.
September 2016: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28195846/color-doppler-ultrasound-assessment-of-activity-in-keloids
#12
Nelson Lobos, Ximena Wortsman, Fernando Valenzuela, Faustino Alonso
BACKGROUND: The assessment of activity in keloids may be critical for defining their management. There is a lack of clinical scorings designed for the evaluation of keloids and biopsies may be contraindicated. OBJECTIVE: To assess the sonographic activity of keloids in comparison with clinical scoring. MATERIALS AND METHODS: A retrospective study of the clinical and color Doppler ultrasound (CDU) images of patients medically derived to CDU with the diagnosis of keloid was performed...
February 9, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28149806/robotic-retroauricular-thyroid-surgery
#13
REVIEW
Haytham Alabbas, Daniah Bu Ali, Emad Kandil
Surgery is the gold standard treatment for patients with thyroid cancer or nodules suspicious for cancer. Open conventional approach is the standard surgical approach. However, a visible neck incision could be a concern for most young female patients, especially for patients with a history of healing with keloid or hypertrophic scars. Robotic remote access approaches have evolved into a safe and feasible approach in selected patients, providing a hidden scar with good patient satisfaction. This review will focus on the performance and safety of robotic retroauricular thyroid surgery...
December 2016: Gland Surgery
https://www.readbyqxmd.com/read/28139418/postoperative-single-dose-interstitial-high-dose-rate-brachytherapy-in-therapy-resistant-keloids
#14
C J H Hafkamp, O Lapid, R Dávila Fajardo, A L van de Kar, C Koedooder, L J Stalpers, B R Pieters
PURPOSE: Patients with keloids complain of the cosmetic aspect, pain, and pruritus. Many different therapies are being used for keloids. The aim of this study was to evaluate the recurrence rate and outcome after resection followed by a single-dose brachytherapy. METHODS AND MATERIALS: Patients treated by resection of the keloid plus a single dose of 13 Gy high-dose-rate brachytherapy were evaluated at least 1 year after treatment. Clinical response and cosmesis were assessed by a plastic surgeon and by the patients using the Patient and Observer Scar Assessment Scale...
January 27, 2017: Brachytherapy
https://www.readbyqxmd.com/read/28138959/growing-trend-of-tattooing-and-its-complications-in-nigeria
#15
REVIEW
Olusola O Ayanlowo, Shakirat A Gold-Olufadi, Ayesha O Akinkugbe, Erere Otrofanowei, Charles N Nga, Yetunde M Olumide
Tattoo, a Polynesian word meaning 'to mark', is a form of body modification done by inserting indelible ink into the dermis to change its pigmentation. Tattoos are done for social, cultural, and religious purposes. It has been in existence since the 18th century and was associated with sailors, lower class individuals, and criminals. However, since the late 20th century, tattooing has undergone a redefinition and shifted to an acceptable form of expression all over the world, including Nigeria, cutting across almost all age groups and socioeconomic class...
January 31, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28129011/intratracheal-keloid
#16
Randall Craver
BACKGROUND: Keloidal scarring can complicate surgical procedures. CASE REPORT: This 21-month-old African-American child developed a keloid around his tracheostomy that extended into the trachea. CONCLUSION: Keloidal formation from a tracheostomy site can extend into the trachea.
February 2017: Fetal and Pediatric Pathology
https://www.readbyqxmd.com/read/28124198/laser-assisted-topical-corticosteroid-delivery-for-the-treatment-of-keloids
#17
Ji Hye Park, Ji Young Chun, Jong Hee Lee
Laser-assisted drug delivery has generated intense interest. The objectives of this study are to evaluate the clinical benefit of laser-assisted corticosteroid delivery and to compare this technique to corticosteroid intralesional injection, a standard treatment for keloids. Patients with keloids on the left shoulder after BCG vaccination were enrolled in this study. The entire lesion was first treated with an ablative fractional erbium-YAG laser. After this treatment, the lesion was divided into two halves...
April 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/28121871/identification-of-key-modules-and-hub-genes-of-keloids-with-weighted-gene-coexpression-network-analysis
#18
Wenhui Liu, Xiaolu Huang, Xiao Liang, Yiwen Zhou, Haizhou Li, Qingxiong Yu, Qingfeng Li
BACKGROUND: Keloid scarring impairs patients' quality of life, and although many therapeutic strategies have been developed, most remain unsatisfactory because of limited understanding of the mechanisms underlying keloid development. METHODS: A microarray gene expression data set from keloid tissue was acquired from the Gene Expression Omnibus. Differentially expressed genes in fibroblasts and keratinocytes underwent functional annotation and pathway analysis. Weighted gene coexpression network analysis was applied to identify the gene targets of keloid scars within differentially expressed genes...
February 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28109484/pediatric-trans-oral-submandibular-gland-excision-a-safe-and-effective-technique
#19
C A Hughes, J Brown
INTRODUCTION: In the pediatric population the submandibular gland requires removal in a number of conditions including, refractory recurrent sialoadenitis, sialolithiasis, salivary gland neoplasms and debilitating sialorrhea. In comparison to the traditional trans-cervical approach, the trans-oral route avoids a cervical scar, potential keloid formation and decreased risk of injury to the marginal mandibular branch of the facial nerve. This approach also eliminates the potentiality of remnant duct disease since the entire duct and papillae are removed...
February 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28101157/functional-analysis-of-keratinocyte-and-fibroblast-gene-expression-in-skin-and-keloid-scar-tissue-based-on-deviation-analysis-of-dynamic-capabilities
#20
Mingming Li, Lei Wu
The aim of the present study was to select key genes that are associated with fibroblasts and keratinocytes during keloid scar progression and development. The gene expression profile of GSE44270, which includes 32 samples, was downloaded from the Gene Expression Omnibus database. Differentially expressed genes (DEGs) in case samples compared with control samples were screened using the Limma R package followed by hierarchical clustering analysis. Protein-protein interaction (PPI) networks of the total selected DEGs were constructed using Cytoscape...
December 2016: Experimental and Therapeutic Medicine
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