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Keloideal scars

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https://www.readbyqxmd.com/read/29152302/surgical-management-of-extensive-hypertrophic-scarring-of-the-halluces-secondary-to-a-decade-of-untreated-onychocryptosis-an-illustrative-case-report
#1
Dean J Samaras, Andrew C Kingsford
Extensive hypertrophic scarring of the halluces secondary to chronic onychocryptosis is a rare condition, which causes significant physical and psychosocial effects. In this case, a 31-year-old male developed large lesions on both great toes after he delayed treatment of chronic hallucal onychocryptosis for over a decade. Current treatment options for hypertrophic and keloid lesions in the foot and ankle vary considerably and differentiation is critical for appropriate treatment planning. In this case, surgical excision with total matrixectomy (modified Zadik-Syme) was considered optimal management...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/29142785/role-of-cord-blood-and-bone-marrow-mesenchymal-stem-cells-in-recent-deep-burn-a-case-control-prospective-study
#2
Wael Abo-Elkheir, Fawzy Hamza, Ahmed M Elmofty, Atef Emam, Magdy Abdl-Moktader, Sameh Elsherefy, Hala Gabr
RATIONALE: Burn injuries represent one of the major worldwide public health problems causing more severe physiological stress than other traumas. Effective treatment of burn injuries is mandatory to prevent the numerous life-threatening complications and possible disabilities. Stem cells, a population of multipotent cells retaining the properties of self-renewal and differentiation, are the main player in tissue regeneration after major trauma. Thus, they are thought to play a key role in wound healing inducing efficient and physiological skin regeneration...
2017: American Journal of Stem Cells
https://www.readbyqxmd.com/read/29132871/the-role-of-tgf%C3%AE-in-wound-healing-pathologies
#3
REVIEW
Dimitra Kiritsi, Alexander Nyström
Wound healing is one of the most complex processes in multicellular organisms, involving numerous intra- and intercellular signalling pathways in various cell types. It involves extensive communication between the cellular constituents of diverse skin compartments and its extracellular matrix. Miscommunication during healing may have two distinct damaging consequences: the development of a chronic wound or the formation of a hypertrophic scar/keloid. Chronic wounds are defined as barrier defects that have not proceeded through orderly and timely reparation to regain structural and functional integrity...
November 10, 2017: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/29118355/decoy-wnt-receptor-slrp6e1e2-expressing-adenovirus-induces-anti-fibrotic-effect-via-inhibition-of-wnt-and-tgf-%C3%AE-signaling
#4
Won Jai Lee, Jung-Sun Lee, Hyo Min Ahn, Youjin Na, Chae Eun Yang, Ju Hee Lee, JinWoo Hong, Chae-Ok Yun
Aberrant activation of the canonical Wingless type (Wnt) signaling pathway plays a key role in the development of hypertrophic scars and keloids, and this aberrant activation of Wnt pathway can be a potential target for the development of novel anti-fibrotic agents. In this study, we evaluated the anti-fibrotic potential of a soluble Wnt decoy receptor (sLRP6E1E2)-expressing non-replicating adenovirus (Ad; dE1-k35/sLRP6E1E2) on human dermal fibroblasts (HDFs), keloid fibroblasts (KFs), and keloid tissue explants...
November 8, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29116332/-therapy-of-scars-with-lasers
#5
REVIEW
G G Gauglitz, J Pötschke, M T Clementoni
Scar formation is the consequence of trauma to the skin that affects the deep parts of the dermis. Different scar types like immature, mature, atrophic, hypertrophic, or keloid scars can develop depending on factors like age, anatomic localization, cause of trauma, the course of the healing process, and individual predispositions. Keloids and hypertrophic scars are often associated with itching, pain, tautness of the skin, and functional impairments, thus, leading to significantly reduced quality of life in some patients...
November 7, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/29105155/the-tension-biology-of-wound-healing
#6
REVIEW
Hans I-Chen Harn, Rei Ogawa, Chao-Kai Hsu, Michael W Hughes, Ming-Jer Tang, Cheng-Ming Chuong
Following skin wounding, the healing outcome can be; regeneration, repair with normal scar tissue, repair with hypertrophic scar tissue, or the formation of keloids. The role of chemical factors in wound healing has been extensively explored, and while there is evidence suggesting the role of mechanical forces, its influence is much less well defined. Here we provide a brief review on the recent progress of the role of mechanical force in skin wound healing by comparing laboratory mice, African spiny mice, fetal wound healing, and adult scar keloid formation...
November 4, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/29098115/comparison-of-intralesional-triamcinolone-acetonide-5-fluorouracil-and-their-combination-for-the-treatment-of-keloids
#7
Sunil Srivastava, Aditya Nanasaheb Patil, Chaitra Prakash, Hiranmayi Kumari
Objective: Despite the myriad options available, there is no universally accepted treatment for keloids. Our objective was to compare three regimens and establish superiority in terms of objective and subjective outcomes. Approach: In this randomized parallel group study, 60 patients were enrolled and randomly allocated to three groups. Patients received intralesional injections of triamcinolone acetonide (TAC) in Group TAC, 5-fluorouracil (5FU) in Group 5FU, and a combination in Group T + F every 3 weeks till 24 weeks or till the keloid resolved...
November 1, 2017: Advances in Wound Care
https://www.readbyqxmd.com/read/29094366/observer-blind-randomized-controlled-study-of-a-cosmetic-blend-of-safflower-olive-and-other-plant-oils-in-the-improvement-of-scar-and-striae-appearance
#8
Stephan Bielfeldt, Jürgen Blaak, Rainer Wohlfart, Caroline Manger, Klaus-P Wilhelm
OBJECTIVE: The normal process of skin tissue repair following injury invariably results in visual scarring. It is known that topical treatment with hydrophobic cosmetics high in silicone and mineral oil content can improve the appearance of scars and striae. Given lifestyle preferences of many cosmetic consumers towards so-called natural treatments, the objective of this controlled randomized study was to investigate the efficacy of a plant body oil rich in oleic and linoleic acids (Bio Skin Oil(®) ) for improving the appearance of scars and striae...
November 2, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/29089212/up-regulation-of-%C3%AE-1-adrenoceptors-in-burn-and-keloid-scars
#9
Peter D Drummond, Linda F Dawson, Fiona M Wood, Mark W Fear
Stimulation of α1-adrenoceptors evokes inflammatory cytokine production, boosts neurogenic inflammation and pain, and influences cellular migration and proliferation. Hence, these receptors may play a role both in normal and abnormal wound healing. To investigate this, the distribution of α1-adrenoceptors in skin biopsies of burn scars (N=17), keloid scars (N=12) and unscarred skin (N=17) was assessed using immunohistochemistry. Staining intensity was greater on vascular smooth muscle in burn scars than in unscarred tissue, consistent with heightened expression of α1-adrenoceptors...
October 28, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29076632/a-novel-model-of-humanised-keloid-scarring-in-mice
#10
Tao Shang, Bin Yao, Dongyun Gao, Jiangfan Xie, Xiaobing Fu, Sha Huang
Treatments for keloid scarring are a major challenge to scientists and physicians for their unknown aetiology. Although several models, including monolayer cell culture to tissue-engineered models, were developed, further research on keloid has more or less been hindered by the lack of appropriate animal models. Because these aberrant scars are specific to humans, we obtained human normal and keloid skin tissues and isolated dermal fibroblasts from them. Cell morphology, growth and immunohistochemical staining of myofibroblastmarker α-SMA were examined, and the cell medium of 2-hour culture and 24-hour culture was implanted on the back of nude mice...
October 27, 2017: International Wound Journal
https://www.readbyqxmd.com/read/29072623/how-signaling-molecules-regulate-tumor-microenvironment-parallels-to-wound-repair
#11
REVIEW
Peter Gál, Lenka Varinská, Lenka Fáber, Štepán Novák, Pavol Szabo, Petra Mitrengová, Andrej Mirossay, Pavel Mučaji, Karel Smetana
It is now suggested that the inhibition of biological programs that are associated with the tumor microenvironment may be critical to the diagnostics, prevention and treatment of cancer. On the other hand, a suitable wound microenvironment would accelerate tissue repair and prevent extensive scar formation. In the present review paper, we define key signaling molecules (growth factors, cytokines, chemokines, and galectins) involved in the formation of the tumor microenvironment that decrease overall survival and increase drug resistance in cancer suffering patients...
October 26, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/29069016/topical-cryoanesthesia-for-the-relief-of-pain-caused-by-steroid-injections-used-to-treat-hypertrophic-scars-and-keloids
#12
RANDOMIZED CONTROLLED TRIAL
Xiuxia Wang, Xiaoli Wu, Ke Liu, Lingling Xia, Xunxun Lin, Wei Liu, Zhen Gao
Intralesional steroid injections are the standard treatment for hypertrophic scars and keloids. The procedure is, however, quite painful and is unpopular with patients because of this. Topical application of anesthetic creams, such as Ametop gel (tetracaine) and EMLA cream (lidocaine and prilocaine), has limited efficacy because of poor drug penetration. The onset of the analgesic effect is also slow, which means that the use of topical anesthetics is time-consuming in clinical practice.We hypothesized that a commercially available cryotip could be used to provide fast-acting topical cryoanesthesia that would reduce the pain associated with steroid injections...
October 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29047002/treatment-of-keloid-scars-using-light-laser-and-energy-based-devices-a-contemporary-review-of-the-literature
#13
E Forbat, F R Ali, F Al-Niaimi
Keloid scars are common and have a predilection for young, ethnic skin often with a family history. Keloids can be painful and pruritic and cause significant emotional distress when particularly visible or prominent. In this article, we review the evidence underlying the use of laser- and energy-based devices for treatment of keloid scars, either as monotherapy or in conjunction with other therapies such as corticosteroids, surgery and silicone gel in the treatment of keloid scars.
December 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29029852/human-adipose-tissue-derived-stem-cells-inhibit-the-activity-of-keloid-fibroblasts-and-fibrosis-in-a-keloid-model-by-paracrine-signaling
#14
Jianlan Liu, Jie Ren, Lina Su, Shimeng Cheng, Jing Zhou, Xiaolu Ye, Yabin Dong, Silei Sun, Fazhi Qi, Zhifei Liu, Jonathon Pleat, Hongjun Zhai, Ningwen Zhu
BACKGROUND: Human adipose tissue-derived mesenchymal stem cells (ASCs) have potential utility as modulators of the regeneration of tissue that is inflamed or scarred secondary to injuries such as burns or trauma. However, the effect of ASCs on one particular type of scarring, keloidal disease, remains unknown. The absence of an optimal model for investigation has hindered the development of an effective therapy using ASCs for keloids. OBJECTIVE: To investigate the influence of ASCs on angiogenesis, extracellular matrix deposition, and inflammatory cell influx in keloids...
October 10, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29022793/intralesional-excision-with-topical-intralesional-cryotherapy-improves-the-treatment-of-keloid-scarring-in-a-paediatric-patient
#15
D Reissis, T Tickunas, R A Agha, Avh Greig
Recurrent keloid scarring has a significant impact on quality of life. Management is complex, particularly for scars resistant to conventional treatments and in paediatric cases where radiotherapy is not a suitable adjunct to surgical excision. We present the case of a nine-year-old African Caribbean girl with multiple large and recurrent keloid scars on both ears and bilateral sensorineural deafness. Following repeated intralesional excisions, corticosteroid and botulinum toxin injections, she continued to experience rapid recurrence of her keloids, worsening pain and pruritus...
September 15, 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/29016541/a-novel-treatment-of-acne-keloidalis-nuchae-by-long-pulsed-alexandrite-laser
#16
Abeer Tawfik, Mai Abdelraouf Osman, Iman Rashwan
BACKGROUND: Acne keloidalis nuchae (AKN) is a dermatological condition characterized by follicular-based papules and pustules that later form hypertrophic or keloid-like scars. Laser-assisted hair reduction such as 810-nm diode laser and 1,064-nm Nd:YAG laser have been used for treating AKN with promising results. OBJECTIVE: To evaluate the therapeutic effect and safety of alexandrite laser in the treatment of different lesions of AKN. METHODS: Seventeen male patients with AKN received 6 sessions of 755-nm alexandrite laser...
October 6, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28988454/awake-serial-intralesional-steroid-injections-without-surgery-as-a-novel-targeted-treatment-for-idiopathic-subglottic-stenosis
#17
Ramon A Franco, Inna Husain, Lindsay Reder, Paul Paddle
OBJECTIVES/HYPOTHESIS: The fibrotic/erythematous appearance of the subglottis in idiopathic subglottic stenosis (iSGS) hints that it might respond to repeated intralesional steroid treatment similar to keloids. STUDY DESIGN: Retrospective cohort study. METHODS: Thirteen iSGS subjects (six treated in-office with serial intralesional steroid injections [SILSI] versus seven treated endoscopically in the operating room [OR] followed by awake SILSI) between October 2011 and April 2017...
October 8, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28966521/primary-cutaneous-endometriosis-of-umbilicus
#18
Seung-Hee Loh, Bark-Lynn Lew, Woo-Young Sim
Cutaneous endometriosis is defined by the presence of endometrial glands and/or stroma in skin and represents less than 1% of all ectopic endometrium. Cutaneous endometriosis is classified as primary and secondary. Primary cutaneous endometriosis appears without a prior surgical history and secondary cutaneous endometriosis mostly occurs at surgical scar tissue after abdominal operations. The most widely accepted pathogenesis of secondary endometriosis is the iatrogenic implantation of endometrial cells after surgery, such as laparoscopic procedures...
October 2017: Annals of Dermatology
https://www.readbyqxmd.com/read/28946730/the-rolling-earlobe-flap-for-dilated-ear-holes-following-ear-gauging-a-novel-approach-to-aesthetically-preserving-earlobe-soft-tissue-volume
#19
Wan-Sze Pek, Lin Hon Terence Goh, Chong Han Pek
Patients are increasingly seeking repair of their earlobes following ear gauging. Research has shown that current repair techniques either excessively reduce the lobular volume or leave an obvious scar along the free edge of the earlobe. In our case series, we describe the use of a novel technique for repairing earlobes following ear gauging using a rolling earlobe flap that preserves the lobular volume and avoids leaving a scar on the free edge of the lobule. The procedure was performed on 3 patients (6 earlobes) who had defects from ear gauging that ranged from 3...
September 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28946718/effects-of-topical-tamoxifen-on-wound-healing-of-burned-skin-in-rats
#20
Shaban Mehrvarz, Ali Ebrahimi, Hedayat Sahraei, Mohammad Hasan Bagheri, Sima Fazili, Shahram Manoochehry, Hamid Reza Rasouli
BACKGROUND: This study aimed to assess the effects of the topical application of tamoxifen on wound healing of burned skin in Wistar rats by evaluating 3 healing characteristics: fibrotic tissue thickness (FTT), scar surface area (SSA), and angiogenesis in the healed scar tissue. METHODS: Eighteen male Wistar rats were used in this study. A third-degree burn wound was made on the shaved animals' back, measuring 2×2×2 cm. In the first group, a 2% tamoxifen ointment was applied to the wound twice daily for 8 weeks...
September 2017: Archives of Plastic Surgery
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