Dermatology Commons^™

Introduction To Dermoscopy, Deborah Bren Do

Department of Family Medicine

No abstract provided.

Increased Expression Of Napdh Oxidase 4 In Systemic Sclerosis Dermal Fibroblasts: Regulation By Transforming Growth Factor Β., Sonsoles Piera-Velazquez, Alma Makul, Sergio A. Jimenez

Department of Dermatology and Cutaneous Biology Faculty Papers

OBJECTIVE: Systemic sclerosis (SSc) is characterized by severe and often progressive fibrosis of the skin and multiple internal organs. The mechanisms responsible for these alterations remain obscure, although excessive reactive oxygen species (ROS)-mediated oxidative stress has been implicated. NOX-4 is 1 of 7 isoforms of NADPH oxidase responsible for the generation of ROS. The purpose of this study was to examine NOX-4 expression in skin and cultured dermal fibroblasts from SSc patients and to examine its regulation by transforming growth factor β1 (TGFβ1).

METHODS: NOX-4 was assessed in normal and SSc skin by immunohistologic analysis and in normal and SSc …

Lysyl Hydroxylase 3 Localizes To Epidermal Basement Membrane And Is Reduced In Patients With Recessive Dystrophic Epidermolysis Bullosa., Stephen A Watt, Jasbani H S Dayal, Sheila Wright, Megan Riddle, Celine Pourreyron, James R Mcmillan, Roy M Kimble, Marco Prisco, Ulrike Gartner, Emma Warbrick, W H Irwin Mclean, Irene M Leigh, John A Mcgrath, Julio C Salas-Alanis, Jakub Tolar, Andrew P South

Department of Dermatology and Cutaneous Biology Faculty Papers

Recessive dystrophic epidermolysis bullosa (RDEB) is caused by mutations in COL7A1 resulting in reduced or absent type VII collagen, aberrant anchoring fibril formation and subsequent dermal-epidermal fragility. Here, we identify a significant decrease in PLOD3 expression and its encoded protein, the collagen modifying enzyme lysyl hydroxylase 3 (LH3), in RDEB. We show abundant LH3 localising to the basement membrane in normal skin which is severely depleted in RDEB patient skin. We demonstrate expression is in-part regulated by endogenous type VII collagen and that, in agreement with previous studies, even small reductions in LH3 expression lead to significantly less secreted LH3 …

Rac1 P29s Regulates Pd-L1 Expression In Melanoma., Ha Linh Vu, Sheera Rosenbaum, Timothy J. Purwin, Michael A. Davies, Andrew E. Aplin

Department of Cancer Biology Faculty Papers

Whole exome sequencing of cutaneous melanoma has led to the detection of P29 mutations in RAC1 in 5-9% of samples, but the role of RAC1 P29 mutations in melanoma biology remains unclear. Using reverse phase protein array analysis to examine the changes in protein/phospho-protein expression, we identified cyclin B1, PD-L1, Ets-1, and Syk as being selectively upregulated with RAC1 P29S expression and downregulated with RAC1 P29S depletion. Using the melanoma patient samples in TCGA, we found PD-L1 expression to be significantly increased in RAC1 P29S patients compared to RAC1 WT as well as other RAC1 mutants. The finding that PD-L1 …

Nf-Κb Regulation Of C-Flip Promotes Tnfα-Mediated Raf Inhibitor Resistance In Melanoma., Yongping Shao, Kaitlyn Le, Hanyin Cheng, Andrew E. Aplin

Department of Cancer Biology Faculty Papers

Targeted inhibitors elicit heterogeneous clinical responses in genetically stratified groups of patients. Although most studies focus on tumor intrinsic properties, factors in the tumor microenvironment were recently found to modulate the response to inhibitors. Here, we show that in cutaneous BRAF V600E melanoma, the cytokine tumor necrosis factor-α (TNFα) blocks RAF inhibitor-induced apoptosis via activation of NF-κB. Several NF-κB-dependent factors are upregulated following TNFα and RAF inhibitor treatment. Of these factors, we show that death receptor inhibitor cellular caspase 8 (FLICE)-like inhibitory protein (c-FLIP) is required for TNFα-induced protection against RAF inhibitor. Overexpression of c-FLIP_S or c-FLIP_L isoform decreased RAF …

Recognizing Guttate Psoriasis And Initiating Appropriate Treatment, Lacey Vence Md, Amanda Schmitt, Charles Meadows Md, Todd W. Gress Mph

Internal Medicine

Guttate psoriasis is a less common form of psoriasis. It manifests with numerous small, teardrop shaped, scaly plaques on the trunk and extremities. The etiology includes both environmental and genetic factors. It commonly arises 3-4 weeks following a beta hemolytic streptococcal infection. In some cases, it may be misdiagnosed as an allergy to the antibiotics being used to treat the streptococcal infection. The treatment of guttate psoriasis can vary by severity, but the mainstay treatment includes photo therapy and topical steroids. This case report presents the etiology, clinical findings and current treatment options of guttate psoriasis. It also discusses importance …

Do I Buy It? How Aidettm Training Changes Residents’ Values About Communication Skills In Doctor-Patient Interactions, Andrea Braverman, Phd, Austin Katona, B.Sc., Elisabeth Kunkel, Md, Leo Katz, Md, Matthew Keller, Md, Constantine Daskalakis, Sc.D, Jennifer Jasmine Arfaa, Phd, Mhsa

Department of Obstetrics and Gynecology Presentations and Grand Rounds

OBJECTIVES

Acquiring communication and interpersonal skills is an important part of providing patient-centered care and improving patient satisfaction. This study explores whether residents’ own values about patient communication change over time.

Radiation Oncology – Fulfilling A Need For Research, Education, And Practice: Effectiveness Of Calendula Lotion For Radiation Dermatitis (Poster), Jennifer B. Bergenstock Bsn, Rn, Ocn, Sandra Frey Rn Msn Ocn, Erin Light Rn Bsn Ocn, Kathy Krause Rn Ocn, Sue Lewis Rn Ocn, Marisa Kauker Rn Bsn Ocn, Jenna Byorek Rn Bsn, Debra Knappenberger Rn Ocn, Mary T. Konek Rn, Ocn, Ba, Ruth Ocasio Lpn, Mary Lenahan Durnin Rn Msn Ocn, Charles Andrews Md, Jeanette Blauth Md, Alyson Mcintosh Md, Steven Perch Md, Robert G. Prosnitz Md, Mph, Dennis Sopka Md, Clinton Leinweber Do, Tracy Kichline Data Systems Analyst, Mandy Hendricks Rn Msn Ocn

Patient Care Services / Nursing

No abstract provided.

Genetic Heterogeneity Of Pseudoxanthoma Elasticum: The Chinese Signature Profile Of Abcc6 And Enpp1 Mutations., Liang Jin, Qiujie Jiang, Zhengsheng Wu, Changxia Shao, Yong Zhou, Luting Yang, Jouni Uitto, Gang Wang

Department of Dermatology and Cutaneous Biology Faculty Papers

Pseudoxanthoma elasticum (PXE), an autosomal recessive disorder characterized by ectopic mineralization, is caused by mutations in the ABCC6 gene. We examined clinically 29 Chinese PXE patients from unrelated families, so far the largest cohort of Asian PXE patients. In a subset of 22 patients, we sequenced ABCC6 and another candidate gene, ENPP1, and conducted pathogenicity analyses for each variant. We identified a total of 17 distinct mutations in ABCC6, 15 of them being, to our knowledge, previously unreported, including 5 frameshift and 10 missense variants. In addition, a missense mutation in combination with a recurrent nonsense mutation in ENPP1 was …

Disseminated Mycobacterium Tuberculosis With Ulceronecrotic Cutaneous Disease Presenting As Cellulitis, Kelly L. Reed Do, Nektarios I. Lountzis Md

Department of Medicine

No abstract provided.

Darkening And Eruptive Nevi During Treatment With Erlotinib, Stephen Hemperly Do, Tanya Ermolovich Do, Nektarios I. Lountzis Md, Hina A. Sheikh Md, Stephen M. Purcell Do

Department of Medicine

No abstract provided.

Cutaneous Pseudolymphoma Due To Lamotrigine: First Reported Case, Kelly L. Reed Do, Kelly Quinn Do, Anthony J. Gust Md

Department of Medicine

No abstract provided.

Erythrodermic Dermatomyositis, Huyenian Nguyen Do, Joshua M. Levin Md, Stephen Purcell Do

Department of Medicine

No abstract provided.

Squamous Cell Carcinoma, Keratoacanthoma-Type Within A Tattoo, Elise Grgurich Do, Nektarios I. Lountzis Md, Stephen Purcell Do

Department of Medicine

No abstract provided.

Scalp Arteriovenous Fistula With Intracranial Communication, Stephen Hemperly Do, Richard Mccalin Md, Stephen M. Purcell Do

Department of Medicine

No abstract provided.

Re-Recurrent Dermatofibrosarcomaprotuberans Of The Chest Wall., Niaz Hussain, Mujtaba Zaki Naveed, Ghulam H

Section of Pulmonary & Critical Care

Dermatofibrosarcomaprotuberans is a rare, soft tissue tumour with high rate of recurrence. It is locally aggressive, with a low rate of metastasis. We describe the case of a 42 year old man who presented with a re-recurrent, large tumour situated on the anterior chest wall in the sternal region. We did a wide local excision and covered the resulting defect by using bilateral, pectoralis major myocutaneous flaps. Histopathology and immunohistochemical staining findings were consistent with the diagnosis of Dermatofibrosarcoma Protuberance. Post operatively the patient was treated with chemotherapy and radiotherapy.

A Case Of Phaeohyphomycosis Caused By Exophiala Oligosperma In A Renal Transplant Patient Successfully Treated With Posaconazole, A. C. Levy, S Rehman, D.A. Sutton, K.I. Burris, D.A. Hirschwerk, N.P. Wiederhold, J. Lindner, M. Bhaskaran, H.L. Rilo, E.P. Molmenti, +3 Additional Authors

Journal Articles

No abstract provided.

Prevalence And Correlates Of Indoor Tanning And Sunless Tanning Product Use Among Female Teens In The United States, Megan Quinn, Arsham Alamian, Joel J. Hillhouse, Colleen Scott, Rob Turrisi, Katie Baker

ETSU Faculty Works

Background

Indoor tanning (IT) before the age of 35 increases melanoma risk by 75%. Nevertheless, IT and sunless tanning product (STP) use have gained popularity among youth. However, there are limited data on the prevalence and sociodemographic correlates of both IT and STP use in a representative sample of American teens.

Methods

Teenage females (N = 778) aged 12–18 years were recruited as part of an on-going longitudinal study conducted between May 2011 and May 2013. Descriptive statistics explored IT and STP usage in teen females at baseline. Logistic regression was used to determine sociodemographic correlates of IT and STP …

Nitric Oxide Generating/Releasing Materials, Honying Liang, Parimala Nacharaju, Adam J. Friedman, Joel Friedman

Dermatology Faculty Publications

Harnessing the impressive therapeutic potential of nitric oxide (NO) remains an ongoing challenge. This paper describes several of the current strategies both with respect to the underlying chemistry and physics and to the applications where they have shown promise. Included in this overview are molecular systems such as NONOates that release NO through chemical reactions and delivery vehicles such as nanoparticles that can generate, store, transport and deliver NO and related bioactive forms of NO such as nitrosothiols. Although there has been much positive movement, it is clear that we are only at the early stages of knowing how to …

Isolation Of Leclercia Adecarboxylata From A Patient With A Subungual Splinter., Rina Allawh, Brendan J Camp

Medicine Faculty Publications

Leclercia adecarboxylata is a rarely described motile, aerobic, gram-negative bacillus reported to cause clinically significant solitary infections in immunocompromised patients and polymicrobial wound infections in immunocompetent patients [1-5]. We present a case of a polymicrobial infection including L. adecarboxylata in a healthy female patient with a subungual splinter, to increase awareness and aid in the diagnosis and treatment of cutaneous L. adecarboxylata infections. To our knowledge, this is the first reported case of trauma-related subungual L. adecarboxylata infection reported in the dermatology literature.

Cutaneous Ulcerations Due To Infection With Stenotrophomonas Maltophilia, A. C. Berkowitz, C. Waintraub, A. Flamm, C. Ding, K. Burris

Journal Articles

No abstract provided.