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Dermal AND (adipose OR Adipocyte OR Fat)

Mohamad Javad Mirzaei-Parsa, Hossein Ghanbari, Behnam Alipoor, Amirhossein Tavakoli, Mohammad Reza H Najafabadi, Reza Faridi-Majidi
Full-thickness skin defect is one of the main clinical problems, which cannot be repaired spontaneously. The aim of this study was to evaluate the feasibility of combining nanofibers with ADM as a bilayer scaffold for treatment of full-thickness skin wounds in a single-step procedure. The nanofibrous polycaprolactone/fibrinogen scaffolds were fabricated by electrospinning. Subsequently, mesenchymal stem cells were isolated from rat adipose tissues and characterized by flow cytometry. Cell adhesion, proliferation, and the epidermal differentiation potential of adipose-derived stem cells (ADSCs) on nanofibrous scaffolds were investigated by scanning electron microscopy (SEM), alamarBlue, and real-time PCR, respectively...
October 18, 2018: Cell and Tissue Research
Keun Tae Kim, Hook Sun, Eui Han Chung
Linear scleroderma en coup de sabre (LScs) is a variant of localized scleroderma. This disease typically occurs in patients in their 20s or younger individuals and predominantly occurs in the forehead area. A 26-year-old man with linear scleroderma was surgically treated at our center with Medpor (porous polyethylene) and dermal fat graft for the forehead lesion. After 26 months of postoperative follow-up, the depressed lesion that appeared scarred as well as the margins improved significantly. The surgical treatment of LScs using Medpor and dermal fat graft is an effective treatment modality that can increase patient satisfaction...
October 16, 2018: Archives of Craniofacial Surgery
K Hufschmidt, N Bronsard, R Foissac, P Baqué, T Balaguer, B Chignon-Sicard, J Santini, O Camuzard
BACKGROUND: Over the past decade, cosmetic injections of dermal fillers or fat have become a popular procedure in facial rejuvenation in an overconsuming society. However, complications such as arterial embolism and occlusion can occur even with experienced injectors, especially in high-risks zones namely the glabella, the nasal dorsum or the nasolabial fold. The aim of this study was to define the vascular danger zones of the infraorbital area in order to provide guidelines helping avoid them...
September 27, 2018: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
Syed Nasir Abbas Bukhari, Nur Liyana Roswandi, Muhammad Waqas, Haroon Habib, Fahad Hussain, Shahzeb Khan, Muhammad Sohail, Nor Amlizan Ramli, Hnin Ei Thu, Zahid Hussain
Hyaluronic acid (HA) plays multifaceted role in regulating the various biological processes such as skin repairmen, diagnosis of cancer, wound healing, tissue regeneration, anti-inflammatory, and immunomodulation. Owing to its remarkable biomedical and tissue regeneration potential, HA has been numerously employed as one of the imperative components of the cosmetic and nutricosmetic products. The present review aims to summarize and critically appraise recent developments and clinical investigations on cosmetic and nutricosmetic efficacy of HA for skin rejuvenation...
October 1, 2018: International Journal of Biological Macromolecules
Jeremy A Goss, Reid A Maclellan, Arin K Greene
BACKGROUND: Primary idiopathic lymphedema is an uncommon condition that typically affects the lower extremities. Patients have a malformed lymphatic system that causes subcutaneous fluid and adipose deposition. Rarely, the disease also has been described in the upper extremities. The purpose of this study was to investigate a cohort of patients with primary arm lymphedema to better understand the disease. METHODS: Patients evaluated in our Lymphedema Program between 2008 and 2018 were reviewed for individuals with upper extremity primary lymphedema...
October 2, 2018: Lymphatic Research and Biology
Ryan E Rebowe, Lindsay J Allred, Maurice Y Nahabedian
Prosthetic breast reconstruction is the most common method of reconstruction offered to women following mastectomy. Prepectoral breast reconstruction has recently reemerged as an alternative technique to the partial and total muscle coverage methods. Though this technique has been demonstrated to be safe and effective in the recent published literature, many surgeons have been hesitant to adopt it out of fear of incurring the same complications associated with subcutaneous reconstructions of the past. However, recent advancements in plastic surgery including the use of acellular dermal matrices, autologous fat grafting, and improved breast implants and improved mastectomy techniques have enabled plastic surgeons to revisit the prepectoral space...
June 2018: Plastic and Reconstructive Surgery. Global Open
Jeremy A Antonyshyn, Meghan J McFadden, Anthony O Gramolini, Stefan O P Hofer, J Paul Santerre
Considerable effort has been directed toward deriving endothelial cells (ECs) from adipose-derived mesenchymal stem cells (ASCs) since 2004, when it was first suggested that ECs and adipocytes share a common progenitor. While the capacity of ASCs to express endothelial markers has been repeatedly demonstrated, none constitute conclusive evidence of an endothelial phenotype as all reported markers have been detected in other, non-endothelial cell types. In this study, quantitative phenotypic comparisons to representative EC controls were used to determine the extent of endothelial differentiation being achieved with ASCs...
September 30, 2018: Stem Cells Translational Medicine
Denise R Cooper, Chunyan Wang, Rehka Patel, Andrea Trujillo, Niketa A Patel, Jamie Prather, Lisa J Gould, Mack H Wu
Objective: Chronically ill patients heal recalcitrant ulcerative wounds more slowly. Human adipose-derived stem cells (hADSCs) play an important role in tissue regeneration and exosomes secreted by hADSC contribute to their paracrine signaling. In addition to cytokines, lipids and growth factors, hADSC secrete mRNA, miRNA, and long noncoding (lnc) RNA into exosomes. In this study we examined the role of lncRNA MALAT1 (metastasis-associated lung adenocarcinoma transcript 1), an abundant lncRNA in exosomes from conditioned media (CM), on cell migration and ischemic wound healing...
September 1, 2018: Advances in Wound Care
Florian S Frueh, Nadia Sanchez-Macedo, Maurizio Calcagni, Pietro Giovanoli, Nicole Lindenblatt
BACKGROUND: The treatment of extensive skin defects and bradytrophic wounds remains a challenge in clinical practice. Despite emerging tissue engineering approaches, skin grafts and dermal substitutes are still the routine procedure for the majority of skin defects. Here, we review the role of vascularization and lymphangiogenesis for skin grafting and dermal substitutes from the clinician's perspective. SUMMARY: Graft revascularization is a dynamic combination of inosculation, angiogenesis, and vasculogenesis...
September 21, 2018: European Surgical Research. Europäische Chirurgische Forschung. Recherches Chirurgicales Européennes
J Doridam, A Macron, C Vergari, A Verney, P-Y Rohan, H Pillet
Pressure Ulcer (PU) prevention remains a main public health issue. The physio-pathology of this injury is not fully understood, and a satisfactory therapy is currently not available. Recently, several works suggested that mechanical strains are responsible of deformation-induced damage involved in the initiation of Deep Tissue Injury (DTI). A better assessment of the internal behavior could allow to enhance the modeling of the transmission of loads into the different structures composing the buttock. A few studies focused on the experimental in vivo buttock deformation quantification using Magnetic Resonance Imaging (MRI), but its use has important drawbacks...
August 11, 2018: Journal of Tissue Viability
Uwe Wollina, Piotr Brzezinski
Aesthetic dermatology (AD) is a rapidly growing subspecialty of dermatology. The acceptance of AD in scientific community and the society is associated with its competence, efficiency, and seriousness. This review highlights some recent developments toward new tools, techniques, and understanding in the field of AD. Analyzing the specific needs of patients and assessing the effect by objective measurements is important for further progress. For long time ignored, white adipose tissue has gained increasing interest in biology and rejuvenation...
September 4, 2018: Dermatologic Therapy
Ana Korosec, Sophie Frech, Bernhard Gesslbauer, Martin Vierhapper, Christine Radtke, Peter Petzelbauer, Beate M Lichtenberger
Human skin dermis is comprised of the superficial papillary dermis and the reticular dermis in the lower layers, which can easily be distinguished histologically. In vitro analyses of fibroblasts from explant cultures from superficial and lower dermal layers suggest that human skin comprises at least two fibroblast lineages with distinct morphology, expression profiles and functions. However, while for mouse skin cell surface markers have been identified allowing the isolation of pure populations of one lineage or the other via fluorescence-activated cell sorting (FACS), this has not been achieved for human skin fibroblasts...
September 1, 2018: Journal of Investigative Dermatology
Stefania Niada, Chiara Giannasi, Alice Gualerzi, Giuseppe Banfi, Anna Teresa Brini
The adult stem cell secretome is currently under investigation as an alternative to cell-based therapy in regenerative medicine, thanks to the remarkable translational opportunity and the advantages in terms of handling and safety. In this perspective, we recently demonstrated the efficient performance of the adipose-derived mesenchymal stem/stromal cell (ASC) secretome in contrasting neuroinflammation in a murine model of diabetic neuropathy, where the administration of factors released by dermal fibroblasts (DFs) did not exert any effect...
2018: Stem Cells International
Haruka Nakada, Masayuki Inoue, Kazushige Furuya, Hideki Watanabe, Kou Ikegame, Yuko Nakayama, Masato Ohmori, Hiroshi Nakagomi
BACKGROUND: Fat necrosis is a subjective early as well as delayed complication, which sometimes mimics local recurrence and ruins the quality of life by pain and poor cosmetic result. While, the frequency and severity of fat necrosis are important issues that breast surgeons should explain to the patient, these data are not revealed well. METHODS: A total of 1476 patients who underwent breast surgery from January 2000 to December 2012 were enrolled in the present study...
August 27, 2018: Breast Cancer: the Journal of the Japanese Breast Cancer Society
Nahyun Choi, Junjeong Choi, Ji Hye Kim, Yaeji Jang, Joo Hye Yeo, Juwon Kang, Seung Yong Song, Jinu Lee, Jong-Hyuk Sung
BACKGROUND: Previous studies demonstrated that adipose-derived stem cells (ASCs) can promote hair growth, but unmet needs exist for enhancing ASC hair inductivity. OBJECTIVE: Therefore, we introduced three trichogenic factors platelet-derived growth factor-A, SOX2, and β-catenin to ASCs (tfASCs) and evaluated whether tfASCs have similar characteristics as dermal papilla (DP) cells. METHOD: Global gene expression was examined using NGS analysis...
October 2018: Journal of Dermatological Science
Fatma Frikha, Sonia Boudaya, Najla Abid, Saiida Garbaa, Tahya Sellami, Hamida Turki
Diffuse dermal angiomatosis (DDA) is a type of reactive skin angioproliferation. Clinically, this rare disorder presents as red-violet purpuric papules and/or plaques (some with a greater tendency towards necrosis and ulceration), which can be localized in any body area, but is most often seen in the upper and lower extremities. Localization in the breast commonly presents with severe intractable breast pain and characteristic reticular violaceous erythematous plaques with central ulcerations. Histological examination is fundamental for the diagnosis and is characterized by varied patterns of lobular or diffuse hyperplasia of endothelial cells at the extravascular level...
May 15, 2018: Dermatology Online Journal
Daniel C Morse, Jaime A Tschen, Sirunya Silapunt
Dermatofibroma frequently presents as a red-brown nodule on the extremities of the middle aged. Atrophic dermatofibroma is a rare variant that has been most commonly described as an atrophic depressed, erythematous lesion in females. The correct diagnosis of atrophic dermatofibroma is often hindered by its infrequent presentation. It has a female preponderance with an occurrence ratio of 10:1. We describe a case of an atrophic dermatofibroma on the back of an elderly man. Skin biopsy demonstrated a spindle cell proliferation in a storiform pattern, loss of elastic fibers, and substantial atrophy of both the underlying dermis and subcutaneous tissue...
June 15, 2018: Dermatology Online Journal
A Miroux-Catarino, C Claro, I Viana
Fibrous hamartoma of infancy (FHI) is a rare benign soft tissue tumor with a triphasic organoid histologic appearance. The authors present a case of a 21-month-old healthy girl with a slowly growing flesh-colored subcutaneous plaque 12cm in size on the lower back, with overlying hypertrichosis. A punch biopsy revealed a proliferation of spindle cells infiltrating the dermis and hypodermis organized in a dense storiform pattern with a strong diffuse positivity for CD34. The diagnosis of congenital dermatofibrosarcoma protuberans (DFSP) was considered and an excision was performed...
June 15, 2018: Dermatology Online Journal
Assaf A Zeltzer, Carola Brussaard, Merel Koning, Randy De Baerdemaeker, Benoit Hendrickx, Moustapha Hamdi, Johan de Mey
BACKGROUND AND OBJECTIVES: Lymphedema is caused by insufficient lymphatic drainage leading to abnormal accumulation of interstitial fluid within soft tissues. Lympho-venous anastomosis (LVA), as a surgical option for selected patients, is widely applied. Through preoperative localization of functional lymphatics with indocyanine green, real time visualization of functioning lymphatic vessels is possible. This examination is time consuming and operator dependant and is not suitable to differentiate the ratio of fat hypertrophy to liquid edema...
September 2018: Journal of Surgical Oncology
Di Yue, Xiaowei Wu, Haichen Song, Zhichun Zhou, Man Ye, Mengshan Zhu
OBJECTIVE: The acellular dermal matrix (ADM) used in correcting the tear trough deformity has been reported, but there were only a few cases. The long-term effectiveness of ADM was not clear. We aim to discuss the technique and the effect of using ADM to correct the tear trough deformity through more cases. METHODS: A retrospective study was conducted from January 2012 to January 2017. Twenty-six patients who showed obvious tear trough deformity with moderate or severe orbital fat bulging and excess of lower eyelid skin were treated with ADM to improve the appearance of the midface...
October 2018: Aesthetic Plastic Surgery
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