Read by QxMD icon Read

Keloideal scars

Garrett T Prince, Michael C Cameron, Ramin Fathi, Theodore Alkousakis
INTRODUCTION: 5-fluorouracil has proven to be an effective therapy in the treatment of a variety of dermatologic conditions. Approved by the United States Food and Drug Administration for the topical treatment of actinic keratoses and superficial basal cell carcinoma, 5-fluorouracil has also demonstrated efficacy in the treatment of a variety of other dermatologic diseases. While best known for its use as a topical medication, 5-fluorouracil can also be delivered intralesionally for the treatment of dermatologic disease...
March 1, 2018: Journal of Drugs in Dermatology: JDD
Z-Y Chen, X-F Yu, J-Q Huang, D-L Li
OBJECTIVE: To investigate the role of β-catenin siRNA on proliferation and apoptosis of keloid fibroblast cell. PATIENTS AND METHODS: Real-time polymerase chain reaction (RT-PCR) and Western blot were performed to monitor the mRNA and protein expression levels of β-catenin in pathological scar tissue and adjacent normal tissue. Human keloid fibroblast cells (KFB) were isolated from the keloid's tissue by enzyme digestion assay and identified by immunocytochemistry assay...
February 2018: European Review for Medical and Pharmacological Sciences
Ho Jun Lee, Yong Ju Jang
Hypertrophic scars and keloids are fibroproliferative disorders that may arise after any deep cutaneous injury caused by trauma, burns, surgery, etc. Hypertrophic scars and keloids are cosmetically problematic, and in combination with functional problems such as contractures and subjective symptoms including pruritus, these significantly affect patients' quality of life. There have been many studies on hypertrophic scars and keloids; but the mechanisms underlying scar formation have not yet been well established, and prophylactic and treatment strategies remain unsatisfactory...
March 2, 2018: International Journal of Molecular Sciences
Venkataram Mysore, Omprakash H Mahadevappa, Shyamanta Barua, Imran Majid, Vishalakshi Viswanath, Ramesh M Bhat, Suresh Talwar, Salim Thurakkal, Sanjeev J Aurangabadkar, Manas Chatterjee, Anil Ganjoo
Background: Currently, the standard protocol regarding the performance of procedures on patients receiving or having recently received isotretinoin (13- cis -retinoic acid) states that the procedures should not be performed. The recommendations in standard books and drug insert require discontinuation of isotretinoin for 6 months before performing cosmetic procedures, including waxing, dermabrasion, chemical peels, laser procedures, or incisional and excisional cold-steel surgery. These recommendations have been followed for over two decades despite little evidence for the stated increased risk of scarring...
October 2017: Journal of Cutaneous and Aesthetic Surgery
Grace Limandjaja, Lenie J van den Broek, Melanie Breetveld, Taco Waaijman, Stan Monstrey, Edith de Boer, Rik Scheper, Frank Niessen, Susan Gibbs
To understand scar pathology, develop new drugs, and provide a platform for personalized medicine, physiologically relevant human scar models are required which are characteristic of different scar pathologies. Hypertrophic scars and keloids are two types of abnormal scar resulting from unknown abnormalities in the wound healing process. While they display different clinical behavior, differentiation between the two can be difficult - which in turn means that it is difficult to develop optimal therapeutic strategies...
February 28, 2018: Tissue Engineering. Part C, Methods
Mark Fisher, Brandon Alba, Tawfiqul Bhuiya, Armen K Kasabian, Charles H Thorne, Neil Tanna
BACKGROUND: Recent health care changes have encouraged efforts to decrease costs. In plastic surgery, an area of potential cost savings includes appropriate use of pathologic examination. Specimens are frequently sent because of hospital policy, insurance request, or habit, even when clinically unnecessary. This is an area where evidence-based guidelines are lacking and significant cost-savings can be achieved. METHODS: All specimen submitted for pathologic examination at two hospitals between January and December of 2015 were queried for tissue expanders, breast implants, fat, skin, abdominal pannus, implant capsule, hardware, rib, bone, cartilage, scar, and keloid...
March 2018: Plastic and Reconstructive Surgery
Jayaraman Jayamani, Ariram Naisini, Balaraman Madhan, Ganesh Shanmugam
Excess accumulation of collagen(fibrosis) is the hallmark of many fibrotic diseases such as keloids, hypertrophic scars, etc. The inhibition of collagen fibrillation during its accumulation is a therapeutic way to limit the fibrosis. Herein, the effect of Ferulic acid(FA), a natural phenolic acid compound, on collagen fibrillation is studied using biophysical methods. Optical density(OD) and microscopic analysis indicate that FA inhibits collagen self-association, and the inhibitory efficiency depends on the concentration and temperature...
February 21, 2018: International Journal of Biological Macromolecules
Maday Fernández-Mayola, Lázaro Betancourt, Alicia Molina-Kautzman, Sucel Palomares, Yssel Mendoza-Marí, Dayana Ugarte-Moreno, Ana Aguilera-Barreto, Yilian Bermúdez-Álvarez, Vladimir Besada, Luis J González, Ariana García-Ojalvo, Ana J Mir-Benítez, Aleida Urquiza-Rodríguez, Jorge Berlanga-Acosta
Hypertrophic scars (HTS) and keloids are forms of aberrant cutaneous healing with excessive extracellular matrix (ECM) deposition. Current therapies still fall short and cause undesired effects. We aimed to thoroughly evaluate the ability of growth hormone releasing peptide 6 (GHRP6) to both prevent and reverse cutaneous fibrosis and to acquire the earliest proteome data supporting GHRP6's acute impact on aesthetic wound healing. Two independent sets of experiments addressing prevention and reversion effects were conducted on the classic HTS model in rabbits...
February 21, 2018: International Wound Journal
R Simões, C Alves, L Tavares, I Balacó, P Sá Cardoso, T Pu Ling, G Matos
Purpose: The overriding fifth toe is a congenital triplane deformity that may cause aesthetic and functional concerns in children and adolescents. This study aims to evaluate the results obtained when using Butler's arthroplasty to treat this forefoot deformity. Methods: We performed a retrospective study, including all patients undergoing Butler's arthroplasty from January 1995 to December 2012. Clinical records were reviewed to determine age at date of surgery, gender, laterality, preoperative symptoms, success of deformity correction, postoperative pain, scarring, need for adapted shoe, rates of complications and recurrence...
February 1, 2018: Journal of Children's Orthopaedics
Eveline Bijlard, Reinier Timman, Gerda M Verduijn, Frank B Niessen, Steven E R Hovius, Marc A M Mureau
BACKGROUND: Keloids are a burden for patients due to physical, aesthetic and social consequences. Treatment remains a challenge due to therapy resistance and high recurrence rates. The main goals of treatment are to improve scar appearance and symptoms and patients' quality of life (QoL). METHODS: Two multicentre, randomised controlled open trials that compared 1) intralesional cryotherapy with excision and corticosteroid injections for primary keloids, and 2) intralesional cryotherapy with excision and brachytherapy for therapy resistant keloids...
February 6, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
Xu Mingyuan, Pang Qianqian, Xu Shengquan, Ye Chenyi, Lei Rui, Shen Yichen, Xu Jinghong
Hypoxia of local tissue occurs during the scar formation; however, the degree of ischemia and hypoxia in the central areas of keloids is more serious than those in normal scars. Hypoxia-induced factor (HIF), is one of the main cellular responses to hypoxia, allowing cells to adapt to low-oxygen conditions. We investigated the correlation among hypoxia, transforming growth factor-β1/Smad signaling and collagen deposition. Hypoxia up-regulated TGF-β1, Smad2/3, p-Smad2/3, Smad4, and total collagen in both normal and keloid fibroblasts via HIF-1α, which was attenuated by HIF-1α inhibition, but TβRII levels were not significantly altered...
January 9, 2018: Oncotarget
Murat Ucak
Aim: In this report, we presented the patient with Dermatofibrosarcoma Protuberans (DFSP), removed by considering as the keloid scar in the general surgery clinic with misdiagnosis. Case report: The patient was a 19-year-old female student with no scar or previous trauma history in the lesion area. Pathology report of excisional biopsy revealed as a DFSP, reachedsubcutis and dermis. In staging by CT, there had been no distant metastases. There was a lesion with the size of 2x1...
February 2018: Medical Archives
Shi-Feng Jin, Yu-Xin Wang, Nan Xu, Qiang Sun, Chen-Chao Wang, Meng-Zhu Lv, Xu Sun, Shu Guo
Scar treatments are considered a major issue in the plastic surgery field. Activation of the transforming growth factor-β (TGF-β)-mediated signaling pathway plays a key role in the scar pathogeneses, and high temperature requirement factor A1 (HTRA1) inhibits TGF-β1 activation in tumor cells. Our study aims to investigate the role of HTRA1 in the pathogenesis of scars. The mRNA levels of HTRA1 was evaluated by real time PCR, HTRA1 protein expression was determined using western blot and immunohistochemistry, and a luciferase assay was applied to measure dynamic changes of TGF-β1 activity...
January 31, 2018: Cellular and Molecular Biology
Markus V Heppt, Michael C Kirchberger, Thomas Ruzicka, Carola Berking, Werner J Heppt
Isotretinoin is a first generation retinoid with pleiotropic effects on keratinocyte differentiation, proliferation, and activity of sebaceous glands. For years, there has been intense debate on whether the use of isotretinoin combined with cosmetic or surgical procedures is safe and potentially more efficient than either therapy alone. Due to delays in wound healing and keloid formation, conservative recommendations were not to combine isotretinoin with any plastic surgery or local treatment at 6 to 12 months after discontinuation of the drug...
February 2018: Facial Plastic Surgery: FPS
Evan Austin, Eugene Koo, Jared Jagdeo
BACKGROUND: Keloids and hypertrophic scars are conditions of pathologic scarring characterized by fibroblast hyperproliferation and excess collagen deposition. These conditions significantly impact patients by causing psychosocial, functional, and aesthetic distress. Current treatment modalities have limitations. Clinical evidence indicates that botulinum toxin A (BoNT-A) may prevent and treat keloids and hypertrophic scars. OBJECTIVE: To examine investigated cellular pathways involved in BoNT-A therapeutic modulation of keloids and hypertrophic scars...
February 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
S B Kant, E van den Kerckhove, C Colla, S Tuinder, R R W J van der Hulst, A A Piatkowski de Grzymala
Background: Since the management of keloid and hypertrophic scars still remains a difficult clinical problem, there is need for adequate, effective therapy. In this study, we explored for the first time the efficacy and the potential synergetic effect of combined triamcinolone and verapamil for the treatment of hypertrophic and keloid scars. The objective was to assess the efficacy of combined intralesional triamcinolone and verapamil therapy for hypertrophic and keloid scars. Methods: Fifty-eight patients with hypertrophic scars ( n  = 31) and keloid scars ( n  = 27) were included...
2018: European Journal of Plastic Surgery
Leandra A Barnes, Clement D Marshall, Tripp Leavitt, Michael S Hu, Alessandra L Moore, Jennifer G Gonzalez, Michael T Longaker, Geoffrey C Gurtner
Significance: Excessive scarring is major clinical and financial burden in the United States. Improved therapies are necessary to reduce scarring, especially in patients affected by hypertrophic and keloid scars. Recent Advances: Advances in our understanding of mechanical forces in the wound environment enable us to target mechanical forces to minimize scar formation. Fetal wounds experience much lower resting stress when compared with adult wounds, and they heal without scars. Therapies that modulate mechanical forces in the wound environment are able to reduce scar size...
February 1, 2018: Advances in Wound Care
Hao Liu, Kexin Song, Mingzi Zhang, Xinhang Dong, Shu Liu, Youbin Wang
RATIONALE: In this study, a case of toe keloid after nail extraction is presented, in which the keloids on both toes were resected by surgical excision. Keloids (from the Greek word meaning "crab's claw") are fibrous growths that extend beyond the original area of injury to involve the adjacent normal skin. In general, keloid tendencies appear to be regionally isolated to keloid-prone areas, such as the chest, ears, and deltoid regions, whereas the hands and feet are usually spared, which is why this case is meaningful...
December 2017: Medicine (Baltimore)
C L Song, M Yao
In recent years, researchers have found that CD26 (dipeptidyl peptidase 4) is closely related to the formation and development of many fibrotic diseases. Hypertrophic scar, keloid, and other skin fibrosis diseases are major problems nowadays, which may affect the patient's appearance and cause joints deformity and dysfunction due to scar contracture. This article briefly reviews the relationship between CD26 and hypertrophic scar and keloid to provide new insights into the treatment of skin fibrotic diseases...
January 20, 2018: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
Aseel Sleiwah, Aoibhinn Clinton, Kevin Herbert
A 43-year-old man developed an abnormal scar 6 months following excision of a leiomyoma from his left shoulder. The scar was elevated, irregular in shape, pink-red in colour, hard in consistency and it was extending beyond the margins of the original wound. A diagnosis of a keloid scar was considered and the patient was managed as such. He underwent a planned procedure for intralesional excision of the keloid scar. The histopathological examination showed a diagnosis of leiomyosarcoma. This case report presents a delayed diagnosis of dermal leiomyosarcoma mimicking a keloid scar...
January 26, 2018: BMJ Case Reports
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"