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https://www.readbyqxmd.com/read/29454062/laser-assisted-delivery-of-synergistic-combination-chemotherapy-in-in-vivo-skin
#1
Emily Wenande, Joshua Tam, Brijesh Bhayana, Steven Kyle Schlosser, Emily Ishak, William A Farinelli, Agata Chlopik, Mai P Hoang, Omar R Pinkhasov, Peter Caravan, R Rox Anderson, Merete Haedersdal
The effectiveness of topical drugs for treatment of non-melanoma skin cancer is greatly reduced by insufficient penetration to deep skin layers. Ablative fractional lasers (AFLs) are known to enhance topical drug uptake by generating narrow microchannels through the skin, but information on AFL-drug delivery in in vivo conditions is limited. In this study, we examined pharmacokinetics, biodistribution and toxicity of two synergistic chemotherapy agents, cisplatin and 5-fluorouracil (5-FU), following AFL-assisted delivery alone or in combination in in vivo porcine skin...
February 14, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29452979/3-piece-inflatable-penile-prosthesis-placement-following-radical-cystoprostatectomy-and-urinary-diversion-technique-and-outcomes
#2
Jeffrey Loh-Doyle, Mukul B Patil, Hari Sawkar, Kevin Wayne, Stuart D Boyd
BACKGROUND: After radical cystoprostatectomy (RC), postoperative erectile dysfunction (ED) is a common consequence with multiple contributing etiologies. The inflatable penile prosthesis (IPP) offers patients a definitive treatment option when ED is refractory to medical therapies. Because of the hostile postoperative anatomy of these patients, a careful surgical approach is necessary for successful outcomes and to avoid adjacent organ injury. To date, there is no series describing the outcomes of 3-piece IPP placement in patients with urinary diversions...
February 13, 2018: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29452120/quantifying-the-polygenic-contribution-to-cutaneous-squamous-cell-carcinoma-risk
#3
Joanne E Sordillo, Peter Kraft, Ann Chen Wu, Maryam M Asgari
Genetic factors play an important role in cutaneous squamous cell carcinoma (cSCC) risk. Genome-wide association studies have identified 21 single nucleotide polymorphisms (SNPs) associated with cSCC risk. Yet no studies have attempted to quantify the contribution of heritability to cSCC risk by calculating the population attributable risk (PAR) using a combination of all discovered genetic variants. Using an additive multi-locus linear logistic model, we determined the cumulative association of these 21 genetic regions to cSCC PAR...
February 13, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29451670/-it-s-a-traumatic-illness-traumatic-to-witness-a-qualitative-study-of-the-experiences-of-bereaved-family-caregivers-of-patients-with-cutaneous-t-cell-lymphoma
#4
D Orlowska, L E Selman, T Beynon, E Radcliffe, S Whittaker, F Child, R Harding
BACKGROUND: Cutaneous T-cell lymphomas (CTCL) are rare cancers which can be difficult to diagnose, are incurable and adversely affect quality of life, particularly in advanced disease. Families often provide care, but little is known about their experiences or needs while caring for their relative with advanced disease or in bereavement. OBJECTIVES: To explore the experiences of bereaved family caregivers of patients with CTCL. METHODS: Single semi-structured qualitative interviews were conducted with bereaved family caregivers of patients with CTCL recruited via a supra-regional CTCL clinic...
February 16, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29448853/risk-factors-for-positive-margins-after-wide-local-excision-of-cutaneous-squamous-cell-carcinoma
#5
Thomas Jonathan Stewart, Alan Saunders
BACKGROUND AND OBJECTIVES: The standard treatment for cutaneous squamous cell carcinoma (cSCC) is wide local excision (WLE). Incomplete tumor excision is associated with increased recurrence rates and mortality risk. Risk factors for positive margins after WLE of cSCC has been examined in only a few studies. We sought to assess the influence of several clinicopathological factors on margin status in the largest cSCC population to date. METHODS: We performed a retrospective review of records at two skin cancer clinics identifying patients with biopsy-proven cSCC who underwent WLE...
February 16, 2018: Journal of Dermatological Treatment
https://www.readbyqxmd.com/read/29447644/cutaneous-metastasis-to-the-scalp-as-the-primary-presentation-of-colorectal-adenocarcinoma
#6
Sarita R Shah, Danielle S Applebaum, Silvia Potenziani, Yve T Huttenbach, John Wolf, Ida F Orengo
Eruptaneous metastasis is an uncommon presentation of colorectal adenocarcinoma that can occur years after diagnosis of the primary cancer or manifest as the first sign of malignancy. It is essential to diagnose these metastases immediately, as this late-stage development carries a poor prognosis. The scalp is one of the less common sites for skin metastases and nodules may be mistaken for benign entities. In this case report, we report on the case of a 61-year-old woman with CREST syndrome who presented with a cutaneous metastasis to the scalp as the first sign ofcolorectal adenocarcinoma...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29447639/a-patient-case-highlighting-the-myriad-of-cutaneous-adverse-effects-of-prolonged-use-of-hydroxyurea
#7
Brett Neill, Ted Ryser, John Neill, Daniel Aires, Anand Rajpara
BACKGROUND: Hydroxyurea is an antimetabolite primarily used to treat myeloproliferative disorders, and chronic treatment is associated with many cutaneous adverse effects ranging in severity from ichthyosis to aggressive nonmelanoma skin cancer. CASE PRESENTATION: We report a 67-year-oldman with a history of polycythemia vera who was referred for management of progressively worsening dorsal hand lesions. The patient presented withhyperpigmentation, ichthyosis, plantar keratoderma, dermatomyositis-like eruptions, two squamous cell carcinomas, and actinic keratoses...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29447627/lynch-syndrome-and-muir-torre-syndrome-an-update-and-review-on-the-genetics-epidemiology-and-management-of-two-related-disorders
#8
Stephanie Le, Umer Ansari, Aisha Mumtaz, Kunal Malik, Parth Patel, Amanda Doyle, Amor Khachemoune
Hereditary Nonpolyposis Colorectal Cancer (HNPCC), also known as Lynch Syndrome, is an autosomal dominant, tumor predisposing disorder usuallycaused by germline mutations in mismatch repair (MMR) genes. A subset of HNPCC, Muir-Torre Syndrome (MTS) also involves MMR gene defects and is generally accepted as a variant of HNPCC. MTS is typicallycharacterized by at least one visceral malignancy and one cutaneous neoplasm of sebaceous differentiation, with or without keratoacanthomas. In either version of the disorder, nonfunctional MMR systems lead tothe loss of genomic integrity, marked commonly by mismatches in repetitive DNA sequences, resulting in microsatellite instabilities...
November 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29438650/updated-evidence-based-clinical-practice-guidelines-for-the-diagnosis-and-management-of-melanoma-definitive-excision-margins-for-primary-cutaneous-melanoma
#9
Michael J Sladden, Omgo E Nieweg, Julie Howle, Brendon J Coventry, John F Thompson
Definitive management of primary cutaneous melanoma consists of surgical excision of the melanoma with the aim of curing the patient. The melanoma is widely excised together with a safety margin of surrounding skin and subcutaneous tissue, after the diagnosis and Breslow thickness have been established by histological assessment of the initial excision biopsy specimen. Sentinel lymph node biopsy should be discussed for melanomas ≥ 1 mm thickness (≥ 0.8 mm if other high risk features) in which case lymphoscintigraphy must be performed before wider excision of the primary melanoma site...
February 19, 2018: Medical Journal of Australia
https://www.readbyqxmd.com/read/29435687/hypertonicity-primes-malignant-melanoma-cells-for-apoptosis
#10
Diana Nicoleta Calance, Charlotte Steixner, Stefanie Gross, Beatrice Schuler-Thurner, Gertrud Knoll, Martin Ehrenschwender
The tumor environment critically influences responsiveness of cancer cells to chemotherapies, most of which activate the mitochondria-regulated (intrinsic) apoptotic cascade to kill malignant cells. Especially skin tumors encounter an environment with remarkable biophysical properties. Cutaneous accumulation of Na+ locally establishes osmotic pressure gradients in vivo (hypertonicity or hyperosmotic stress), but whether cutaneous hypertonicity is a factor that modulates the responsiveness of skin cancers to therapeutic apoptosis-induction has thus far not been investigated...
February 13, 2018: Apoptosis: An International Journal on Programmed Cell Death
https://www.readbyqxmd.com/read/29434476/interest-of-supportive-and-barrier-protective-skin-care-products-in-the-daily-prevention-and-treatment-of-cutaneous-toxicity-during-radiotherapy-for-breast-cancer
#11
Antoine Berger, Carlos Regueiro, Tarek Hijal, David Pasquier, Cristina De La Fuente, Florence Le Tinier, Bernard Coche-Dequeant, Eric Lartigau, Dominique Moyal, Sophie Seité, René-Jean Bensadoun
Purpose: As many as 50% of patients with cancer develop acute skin reactions to some degree with radiotherapy. Proactive skin care is often recommended to minimise these skin reactions and maintain the integrity of the epidermal barrier; nevertheless, no consensual guidelines are systematically used. This multicentre, observational, prospective study evaluated the tolerability and benefit of supportive and barrier protective skin care products in preventing radiotherapy-induced skin reactions in 253 women initiating radiotherapy (exclusive or adjuvant) for breast cancer...
2018: Breast Cancer: Basic and Clinical Research
https://www.readbyqxmd.com/read/29431200/gata-3-staining-in-primary-cutaneous-apocrine-cribriform-carcinoma-usefulness-to-differentiate-it-from-breast-cancer-metastasis
#12
M Llamas-Velasco, Y C Pérez-Gónzalez, E Daudén, A Rütten
BACKGROUND: Primary cutaneous apocrine cribriform carcinoma (PCACC) is a rare tumor, clinically appearing as a solitary nodule, mostly involving extremities of females and this lesion usually raise a differential diagnosis with metastatic cribriform carcinomas, especially breast cancer. DESIGN: To study GATA3 expression in a series of 14 primary cutaneous cribriform carcinomas and to test this immunostaining usefulness to differentiate this tumor from metastatic breast cancer...
February 12, 2018: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/29430633/phacomatosis-pigmentokeratotica-a-case-of-hras-mosaicism-causing-rhabdomyosarcoma
#13
M Prieto-Barrios, R Llamas-Martin, V Velasco-Tamariz, A Calleja-Algarra, Y Ruano, P L Ortiz-Romero, J L Rodriguez-Peralto
A 17-year-old male presented with a large sebaceous naevus (SN) comprising part of his left face and scalp and a speckled lentiginous naevus (SLN) on his right trunk, hip, neck and scalp with a checkerboard pattern. His right oral hemimucosa showed extensive papillomatous lesions which were contiguous to the upper lip SN lesions. As for extracutaneous manifestations he suffered from cardiac, musculoskeletal and ocular alterations. On the other hand, he developed two primary rhabdomyosarcomas. DNA samples of the SN, SLN, the oral papillomatous hyperplasia and both rhabdomyosarcomas were analyzed by Sanger sequencing...
February 12, 2018: British Journal of Dermatology
https://www.readbyqxmd.com/read/29428440/melatonin-a-cutaneous-perspective-on-its-production-metabolism-and-functions
#14
REVIEW
Andrzej T Slominski, Ruediger Hardeland, Michal A Zmijewski, Radomir M Slominski, Russel J Reiter, Ralf Paus
Melatonin, an evolutionarily ancient derivative of serotonin with hormonal properties, is the main neuroendocrine secretory product of the pineal gland. Although melatonin is best known to regulate circadian rhythmicity and lower vertebrate skin pigmentation, the full spectrum of functional activities of this free radical-scavenging molecule, which also induces/promotes complex antioxidative and DNA repair systems, includes immunomodulatory, thermoregulatory, and antitumor properties. Because this plethora of functional melatonin properties still awaits to be fully appreciated by dermatologists, the current review synthesizes the main features that render melatonin a promising candidate for the management of several dermatoses associated with substantial oxidative damage...
February 7, 2018: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29427826/tocilizumab-and-refractory-takayasu-disease-four-case-reports-and-systematic-review
#15
REVIEW
P Decker, P Olivier, J Risse, S Zuily, D Wahl
BACKGROUND: Relapses upon corticosteroids tapering and immunosuppressive agents are frequent in Takayasu arteritis (TA). Interleukin-6 is highly involved in physiopathology of TA. Many reports showed efficacy of tocilizumab (TCZ) in refractory TA cases. We report four cases and an updated literature review on the TCZ efficacy and safety in patients with TA. METHODS: Patients with TA defined by ACR 1990 criteria were included. Clinical, biological and imaging data were retrospectively reported...
February 7, 2018: Autoimmunity Reviews
https://www.readbyqxmd.com/read/29427464/the-expression-and-function-of-galectins-in-skin-physiology-and-pathology
#16
REVIEW
Nan-Lin Wu, Fu-Tong Liu
The galectin family comprises β-galactoside-binding proteins widely expressed in many organisms. There are at least 16 family members, which can be classified into three groups based on their carbohydrate-recognition domains. Pleiotropic functions of different galectins in physiological and pathological processes through extracellular or intracellular actions have been revealed. In the skin, galectins are expressed in a variety of cells, including keratinocytes, melanocytes, fibroblasts, dendritic cells, lymphocytes, macrophages, and endothelial cells...
February 10, 2018: Experimental Dermatology
https://www.readbyqxmd.com/read/29425540/-when-to-ask-for-a-skin-biopsy-in-a-patient-with-leg-ulcer-retrospective-study-of-143-consecutive-biopsies
#17
A Stansal, K Khayat, V Duchatelle, E Tella, V Gautier, D Sfeir, R Attal, I Lazareth, P Priollet
OBJECTIVE: A vascular cause is found in around 85% of leg ulcer patients, but non-vascular causes are also observed. Their diagnosis is based on a set of clinical arguments and skin biopsy with histological analysis. The aim of this study was to analyze the results of these biopsies and to find common criteria for ulcers whose skin biopsies had led to the diagnosis of a non-vascular ulcer. MATERIAL AND METHOD: A retrospective study was carried out on the analysis of 143 skin biopsies of leg ulcers...
February 2018: Journal de Médecine Vasculaire
https://www.readbyqxmd.com/read/29423582/a-retrospective-review-of-48-individuals-including-12-families-molecularly-diagnosed-with-hereditary-leiomyomatosis-and-renal-cell-cancer-hlrcc
#18
Priya T Bhola, Cathy Gilpin, Amanda Smith, Gail E Graham
Hereditary leiomyomatosis and renal cell cancer (HLRCC) is caused by autosomal dominant germline mutations in the fumarate hydratase (FH) gene and is characterized by cutaneous leiomyomas, uterine leiomyomas and aggressive renal malignancies. We conducted a retrospective chart review to characterize the patients referred to our Regional Genetics Program for assessment of HLRCC from 2004 to mid-2016. Forty-eight of 69 (69.5%) referred individuals were positive for a pathogenic or likely pathogenic variant in FH; they had an average age of 39...
February 8, 2018: Familial Cancer
https://www.readbyqxmd.com/read/29423085/the-anti-rheumatic-drug-leflunomide-synergizes-with-mek-inhibition-to-suppress-melanoma-growth
#19
Kimberley Hanson, Stephen R Robinson, Karamallah Al-Yousuf, Adam E Hendry, Darren W Sexton, Victoria Sherwood, Grant N Wheeler
Cutaneous melanoma, which develops from the pigment producing cells called melanocytes, is the most deadly form of skin cancer. Unlike the majority of other cancers, the incidence rates of melanoma are still on the rise and the treatment options currently available are being hindered by resistance, limited response rates and adverse toxicity. We have previously shown that an FDA approved drug leflunomide, used for rheumatoid arthritis (RA), also holds potential therapeutic value in treating melanoma especially if used in combination with the mutant BRAF inhibitor, vemurafenib...
January 9, 2018: Oncotarget
https://www.readbyqxmd.com/read/29422815/the-role-of-regulatory-t-cells-and-genes-involved-in-their-differentiation-in-pathogenesis-of-selected-inflammatory-and-neoplastic-skin-diseases-part-iii-polymorphisms-of-genes-involved-in-tregs-activation-and-function
#20
REVIEW
Bogusław Nedoszytko, Małgorzata Sokołowska-Wojdyło, Joanna Renke, Magdalena Lange, Piotr Trzonkowski, Michał Sobjanek, Aneta Szczerkowska-Dobosz, Marek Niedoszytko, Aleksandra Górska, Jan Romantowski, Jarosław Skokowski, Leszek Kalinowski, Roman J Nowicki
Regulatory T cells (Tregs) represent a cell type that promotes immune tolerance to autologous components and maintains immune system homeostasis. The abnormal function of Tregs is relevant to the pathogenesis of several skin diseases like psoriasis, atopic dermatitis, systemic lupus erythematosus, cutaneous T-cell lymphomas, and skin cancer and is also important in rheumatoid arthritis, diabetes and other autoimmune diseases. In this review, we will summarize the role of mutations and/or polymorphisms of genes involved in Tregs development, and functions in the pathogenesis of selected skin diseases...
December 2017: Postȩpy Dermatologii i Alergologii
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