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https://www.readbyqxmd.com/read/29781853/the-use-of-pedicled-perforator-flaps-in-chest-reconstruction-a-systematic-review-of-outcomes-and-reliability
#1
Anne-Sophie Florczak, Benoit Chaput, Christian Herlin, Pascal Rousseau, Eric Watier, Nicolas Bertheuil
BACKGROUND: In recent years, pedicled perforator flaps have revolutionized plastic surgery by reducing donor site morbidity and ensuring larger and deeper reconstructions with local pedicled cutaneous flaps. The aim of the study was to make a systematic review of perforator pedicled propeller flaps (PPPFs) in chest reconstruction. METHODS: Pubmed and Cochrane databases were searched from 1989 to October 2016 for articles describing the use of PPPFs in chest reconstruction...
May 17, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29773427/microphthalmia-associated-transcription-factor-mitf-promiscuous-staining-patterns-in-fibrohistiocytic-lesions-is-a-potential-pitfall
#2
Sambit K Mohanty, Shivani Sharma, Dinesh Pradhan, Shivani R Kandukuri, Navid Farahani, Catherine Barry, Julie M Wu, David Frishberg, Bonnie Balzer
Microphthalmia-associated transcription factor (MiTF) is used as a marker of melanocytic differentiation. However, MiTF immunoexpression has also been observed in histiocytes, macrophages, smooth muscle cells and fibroblasts, which raise the concern of fibrohistiocytic (FH) lesions being misdiagnosed as melanoma based on MiTF immunoreactivity. MiTF has been known to be positive in FH tumors, but this is the first study evaluating ninety-three fibrohistiocytic neoplasms to understand and delineate the staining pattern of MiTF in these tumors...
May 11, 2018: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29762444/efficacy-of-autologous-platelet-concentrates-as-adjuvant-therapy-to-surgical-excision-in-the-treatment-of-keloid-scars-refractory-to-conventional-treatments-a-pilot-prospective-study
#3
Barbara Hersant, Mounia SidAhmed-Mezi, Frédéric Picard, Oana Hermeziu, Anne-Marie Rodriguez, Khaled Ezzedine, Jean Paul Meningaud
BACKGROUND: After conventional treatments, keloid scars show varying degrees of recurrence. The aim of this study was to assess the efficacy and safety of platelet-rich plasma in the treatment of postoperative keloid scars refractory to conventional treatments. METHODS: This pilot prospective study was conducted in 17 patients with keloid scars who did not respond to 4 injections of cortisone or radiotherapy after extralesional resection of keloid. Platelet-rich plasma was injected intraoperatively and then 3 times with a 1-month interval...
May 14, 2018: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/29757041/successful-treatment-of-acne-keloidalis-nuchae-with-erbium-yag-laser-a-comparative-study
#4
Hend D Gamil, Elsayed M Khater, Fathia M Khattab, Mona A Khalil
BACKGROUND: Acne keloidalis nuchae (AKN) is a chronic inflammatory disease involving hair follicles of the neck. It is a form of keloidal scarring alopecia that is often refractory to medical or surgical management. OBJECTIVE: To evaluate the efficacy of Er:YAG laser in the treatment of AKN as compared to long pulsed Nd:YAG laser. PATIENTS AND METHODS: This study was conducted on 30 male patients with AKN. Their ages ranged from 19 to 47 years with a mean age of 36...
May 14, 2018: Journal of Cosmetic and Laser Therapy: Official Publication of the European Society for Laser Dermatology
https://www.readbyqxmd.com/read/29731586/piercing-ear-keloid-excision-using-loupe-magnification-and-topical-liquid-silicone-gel-as-adjuvant
#5
Bellam A Ramesh, J Mohan
Background: Keloid is an abnormal growth of scar at the site of skin injury, which usually does not regress. It proliferates beyond the original scar. The ear keloid usually develops after piercing injury to wear ornaments. A patient usually asks for removal of keloid, as it is aesthetically unpleasant. Patient may sometimes complain of itching and pain. Aim: The study was conducted to analyze results following excision of keloid with its tract and topical silicone gel as the postsurgical adjuvant...
January 2018: Journal of Cutaneous and Aesthetic Surgery
https://www.readbyqxmd.com/read/29701618/evaluating-the-therapeutic-success-of-keloids-treated-with-cryotherapy-and-intralesional-corticosteroids-using-noninvasive-objective-measures
#6
Hannah Schwaiger, Markus Reinholz, Julian Poetschke, Thomas Ruzicka, Gerd Gauglitz
BACKGROUND: Intralesional corticosteroid injections combined with cryotherapy are considered a first-line therapy for keloids. However, objective evaluation on its efficacy is widely missing. OBJECTIVE: In this study, the authors evaluated the therapeutic benefits of cryotherapy directly followed by intralesional crystalline triamcinolone acetonide injections using ultrasound and a 3D topographic imaging device. MATERIALS AND METHODS: Fifteen patients with keloids were treated with cryotherapy and intralesional injections of triamcinolone acetonide for a total of 4 times at intervals of 4 weeks...
May 2018: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/29669739/tissue-stiffening-promotes-keratinocyte-proliferation-via-activation-of-epidermal-growth-factor-signaling
#7
Fiona N Kenny, Zoe Drymoussi, Robin Delaine-Smith, Alexander P Kao, Ana Catarina Laly, Martin M Knight, Michael P Philpott, John T Connelly
Tissue biomechanics regulate a wide range of cellular functions, but the influences on epidermal homeostasis and repair remain unclear. Here, we examined the role of extracellular matrix stiffness on human keratinocyte behavior using elastomeric substrates with defined mechanical properties. Increased matrix stiffness beyond normal physiologic levels promoted keratinocyte proliferation but did not alter the ability to self-renew or terminally differentiate. Activation of epidermal growth factor (EGF) signaling mediated the proliferative response to matrix stiffness and depended on focal adhesion assembly and cytoskeletal tension...
April 18, 2018: Journal of Cell Science
https://www.readbyqxmd.com/read/29660408/expansion-of-the-clinical-spectrum-of-frontometaphyseal-dysplasia-2-caused-by-the-recurrent-mutation-p-pro485leu-in-map3k7
#8
Alice Costantini, Carina Wallgren-Pettersson, Outi Mäkitie
Frontometaphyseal dysplasia 2 (FMD2) is a skeletal dysplasia with supraorbital hyperostosis combined with undermodeling of the bones, joint contractures and some extraskeletal features. It is caused by heterozygous mutations in MAP3K7, encoding the Mitogen-Activated Protein 3-Kinase 7. MAP3K7 is activated by TGF-β and plays an important role in osteogenesis. Less than 20 patients with FMD2 and MAP3K7 mutations have been described thus far. The majority of the patients harbor a recurrent missense mutation, NM_003188...
April 13, 2018: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29623705/centella-asiatica-centellicum%C3%A2-facilitates-the-regular-healing-of-surgical-scars-in-subjects-at-high-risk-of-keloids
#9
Roberto Cotellese, Shu Hu, Gianni Belcaro, Andrea Ledda, Beatrice Feragalli, Mark Dugall, Morio Hosoi, Edmondo Ippolito
BACKGROUND: Formation of scars after surgical incisions requires the proper appositions of elements contributing to the scarring process. The structural rebuilding of damaged tissues is essential in producing a linear scar. The excess of blood, foreign particles, exuberant sutures, necrotic tissue, possible infective agents, as well as the ongoing inflammatory process may produce a non-linear, sometimes painful keloidal scar. Centella asiatica (CA) extracts have been used topically since ancient times for preventing keloids (i...
April 2018: Minerva Chirurgica
https://www.readbyqxmd.com/read/29574803/preventive-effect-of-polynucleotide-on-post-thyroidectomy-scars-a-randomized-double-blinded-controlled-trial
#10
Ji Hee Kim, Jong Ju Jeong, Young In Lee, Won Jai Lee, Chorok Lee, Woong Youn Chung, Kee-Hyun Nam, Ju Hee Lee
BACKGROUND AND OBJECTIVE: Polynucleotide (PN) provides a structural scaffold to induce anti-inflammatory and enhanced wound healing properties, and this study aimed to assess the efficacy of PN administration in the prevention of post-operative scars after conventional open total thyroidectomy. STUDY DESIGN MATERIALS AND METHODS: Forty-two patients with thyroid carcinoma who underwent total thyroidectomy were randomly assigned to the study (PN administration) or control (normal saline) group...
March 25, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29569821/efficacy-and-possible-mechanisms-of-botulinum-toxin-type-a-on-hypertrophic-scarring
#11
RongTao Hao, ZongChao Li, Xing Chen, Wei Ye
BACKGROUND: Clinical observations indicate that Botulinum toxin type A (BTXA) can inhibit the growth and improve the eventual appearance of hypertrophic scarring. However, the molecular mechanism remains unclear. OBJECTIVE: We used human keloid fibroblasts to investigate the molecular mechanism of BTXA on hypertrophic scarring. METHODS: Different concentrations of BTXA (0.01, 0.1, 1, and 10 U/L) were used to treat keloid fibroblasts. Changes in cellular morphology, viability, proliferation, cell cycle, and apoptosis were observed by immunofluorescence, MTT assay, and flow cytometry...
March 23, 2018: Journal of Cosmetic Dermatology
https://www.readbyqxmd.com/read/29567352/mechanical-forces-in-skin-disorders
#12
REVIEW
Chao-Kai Hsu, Hsi-Hui Lin, Hans I-Chen Harn, Michael W Hughes, Ming-Jer Tang, Chao-Chun Yang
Mechanical forces are known to regulate homeostasis of the skin and play a role in the pathogenesis of skin diseases. The epidermis consists of keratinocytes that are tightly adhered to each other by cell junctions. Defects in keratins or desmosomal/hemidesmosomal proteins lead to the attenuation of mechanical strength and formation of intraepidermal blisters in the case of epidermolysis bullosa simplex. The dermis is rich in extracellular matrix, especially collagen, and provides the majority of tensile force in the skin...
June 2018: Journal of Dermatological Science
https://www.readbyqxmd.com/read/29537445/intralesional-and-laser-assisted-5-fluorouracil-in-dermatologic-disease-a-systematic-review
#13
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
https://www.readbyqxmd.com/read/29509234/the-mechanisms-of-%C3%AE-catenin-on-keloid-fibroblast-cells-proliferation-and-apoptosis
#14
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
https://www.readbyqxmd.com/read/29498630/recent-understandings-of-biology-prophylaxis-and-treatment-strategies-for-hypertrophic-scars-and-keloids
#15
REVIEW
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
https://www.readbyqxmd.com/read/29491653/standard-guidelines-of-care-performing-procedures-in-patients-on-or-recently-administered-with-isotretinoin
#16
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
https://www.readbyqxmd.com/read/29490604/characterization-of-in-vitro-reconstructed-human-normotrophic-hypertrophic-and-keloid-scar-models
#17
Grace C Limandjaja, Lenie J van den Broek, Melanie Breetveld, Taco Waaijman, Stan Monstrey, Edith M de Boer, Rik J Scheper, Frank B 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...
April 2018: Tissue Engineering. Part C, Methods
https://www.readbyqxmd.com/read/29485577/routine-pathologic-evaluation-of-plastic-surgery-specimens-are-we-wasting-time-and-money
#18
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
https://www.readbyqxmd.com/read/29476853/ferulic-acid-a-natural-phenolic-compound-as-a-potential-inhibitor-for-collagen-fibril-formation-and-its-propagation
#19
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...
July 1, 2018: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/29464859/growth-hormone-releasing-peptide-6-prevents-cutaneous-hypertrophic-scarring-early-mechanistic-data-from-a-proteome-study
#20
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
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