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Actinic keratosis

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https://www.readbyqxmd.com/read/29351725/daylight-mediated-photodynamic-therapy-with-methyl-aminolevulinate-in-actinic-keratosis-treatment
#1
Shantel D J Demay, Kunal Sharma, Sheetal Sapra, Rahul Sapra, Priya Sapra
BACKGROUND: Research has shown daylight-mediated photodynamic therapy (PDT) for the treatment of actinic keratosis (AK) to be effective, tolerable, and convenient, with excellent patient satisfaction and cosmesis. Although success has been demonstrated in areas with similar latitudes to Switzerland and Scandinavia, this treatment has not been studied in a Canadian population. OBJECTIVES: The purpose of this study is to investigate the effectiveness, safety, and patient satisfaction of daylight-mediated methyl 5-aminolevulinate (MAL)-PDT to make recommendations for its use in Canadian practice...
January 1, 2018: Journal of Cutaneous Medicine and Surgery
https://www.readbyqxmd.com/read/29350263/histological-findings-after-argon-plasma-coagulation-an-ex-vivo-study-revealing-a-possible-role-in-superficial-ablative-treatment-of-the-skin
#2
L Schmitz, S Hessam, L Scholl, S Reitenbach, M H Segert, T Gambichler, E Stockfleth, F G Bechara
Argon plasma coagulation (APC) is an electrosurgical technique which can be used to ablate skin lesions with limited invasion depth into dermal tissue. Hence, APC might be well suited for the removal of epithelial tumours. However, there are no data on the effects of APC on human skin tissue. Thus, the aim of this study was to determine the extent of epidermal and dermal damage after APC of human skin. We performed APC ex-vivo on 91 freshly resected human skin samples, which were obtained after reconstructive surgical closures in actinically damaged areas...
January 19, 2018: Archives of Dermatological Research
https://www.readbyqxmd.com/read/29344318/noninvasive-long-term-monitoring-of-actinic-keratosis-and-field-cancerization-following-treatment-with-ingenol-mebutate-gel-0-015
#3
Orit Markowitz, Katie Wang, Amanda Levine, Michelle Schwartz, Sumeet Minhas, Eleanor Feldman, Daniel M Siegel
OBJECTIVE: To determine whether actinic keratosis and photodamaged perilesional areas (field cancerization) treated successfully with topical ingenol mebutate gel 0.015% remained clear one year later, and to treat actinic keratosis and perilesional skin not treated one year earlier. DESIGN: Single-center, single-arm, open-label extension of an original clinical study completed one year earlier. SETTING: An outpatient clinic. PARTICIPANTS: Fifteen of the original 28 study patients enrolled in and who completed the extension phase...
October 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29340950/dermatologic-lesions-submitted-to-an-oral-and-maxillofacial-pathology-biopsy-service-an-analysis-of-2487-cases
#4
Rekha Reddy, Liya Davidova, Indraneel Bhattacharyya, Donald M Cohen, Mohammed N Islam, Sarah G Fitzpatrick
Skin lesions are often submitted to oral and maxillofacial pathology practices. The purpose of this study is to evaluate the frequency, distribution, variability, and composition of dermatologic lesions within a large oral and maxillofacial pathology biopsy service. An IRB-approved retrospective search of skin lesions diagnosed at University of Florida oral and maxillofacial pathology biopsy service between 1994 and 2015 was performed. 2487 cases were included in the study. Gender was reported in 2466 cases, of which 59% were male and 41% female...
January 16, 2018: Head and Neck Pathology
https://www.readbyqxmd.com/read/29331035/noninvasive-optical-spectroscopy-for-identification-of-non-melanoma-skin-cancer-pilot-study
#5
David J Carpenter, Mirabelle B Sajisevi, Nikita Chapurin, Clifford Scott Brown, Tracy Cheng, Gregory M Palmer, Daniel S Stevenson, Caroline L Rao, Russell P Hall, Charles R Woodard
OBJECTIVE: Optical spectroscopy offers a noninvasive alternative to biopsy as a first-line screening tool for suspicious skin lesions. This study sought to define several optical parameters across malignant and benign tissue types. STUDY DESIGN: Prospective pilot trial utilizing the Zenalux IM1 optical spectroscopy device from April 2016 to February 2017. For each skin lesion, provider pre-biopsy probability of malignancy was compared to histolopathologic diagnosis...
January 13, 2018: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29330682/life-threatening-reaction-with-topical-5-fluorouracil
#6
Patrick Kishi, Cynthia J Price
A 67-year-old man developed a suspected adverse drug reaction during treatment with topical 5-fluorouracil (5-FU) for multiple actinic keratosis of the face, neck, and forearms. The man received topical 5-FU at a dosage of 0.5% for the actinic keratoses. After 1 week, he developed extreme lethargy, fatigue, fever, and mouth erosions. Several days later, and after discontinuation of 5-FU, painful mucositis and systemic side effects occurred, meeting criteria for hospitalization because of dehydration and a 6...
January 12, 2018: Drug Safety—Case Reports
https://www.readbyqxmd.com/read/29322431/daylight-photodynamic-therapy-versus-5-fluorouracil-for-the-treatment-of-actinic-keratosis-a-case-series
#7
Gaston Nestor Galimberti
INTRODUCTION: The incidence of actinic keratosis (AK) continues to increase worldwide. Currently available options for the treatment of AK include topical 5-fluorouracil (5-FU) and daylight-mediated photodynamic therapy (DL-PDT). This split-face pilot study compared DL-PDT using 16% methyl aminolevulinate (MAL) cream versus 5-FU cream in patients with AK on the face/scalp. METHODS: Five male subjects (mean age 70 years) with grade I-III AK on the face/scalp were enrolled...
January 10, 2018: Dermatology and Therapy
https://www.readbyqxmd.com/read/29316678/actinic-keratosis-and-non-invasive-diagnostic-techniques-an-update
#8
REVIEW
Alice Casari, Johanna Chester, Giovanni Pellacani
Actinic keratosis represents the earliest manifestation of non-melanoma skin cancer. Because of their risk of progression to invasive squamous cell carcinoma, an earlier diagnosis and treatment are mandatory. Their diagnosis sometimes could represent a challenge even for expert dermatologists. Dermoscopy, confocal laser microscopy and optical coherence tomography could help clinicians in diagnosis.
January 8, 2018: Biomedicines
https://www.readbyqxmd.com/read/29311040/prevalence-and-risk-factors-of-actinic-keratosis-in-patients-attending-italian-dermatology-clinics
#9
Maria Concetta Fargnoli, Gianfranco Altomare, Elisa Benati, Francesco Borgia, Paolo Broganelli, Anna Carbone, Sergio Chimenti, Sergio Donato, Giampiero Girolomoni, Giuseppe Micali, Erica Moggio, Aurora Parodi, Stefano Piaserico, Giuseppe Pistone, Concetta Potenza, Mario Puviani, Margherita Raucci, Sabina Vaccari, Stefano Veglio, Andrea Zanca, Ketty Peris
Actinic keratosis (AK) is a common keratinocyte intra-epidermal neoplasia. To assess AK prevalence and potential risk factors in patients attending Italian general dermatology clinics. This retrospective study was conducted on clinical data from consecutive white outpatients aged ≥30 years, attending 24 general dermatology clinics between December 2014 and February 2015. AK prevalence (entire population) and multivariate risk factor analysis (patients with current/previous AK and complete data) are presented...
December 1, 2017: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/29301290/non-melanoma-skin-cancer-pathogenesis-overview
#10
REVIEW
Dario Didona, Giovanni Paolino, Ugo Bottoni, Carmen Cantisani
(1) Background: Non-melanoma skin cancer is the most frequently diagnosed cancer in humans. The process of skin carcinogenesis is still not fully understood. However, several studies have been conducted to better explain the mechanisms that lead to malignancy; (2) Methods: We reviewed the more recent literature about the pathogenesis of non-melanoma skin cancer focusing on basal cell carcinomas, squamous cell carcinoma and actinic keratosis; (3) Results: Several papers reported genetic and molecular alterations leading to non-melanoma skin cancer...
January 2, 2018: Biomedicines
https://www.readbyqxmd.com/read/29298652/astragalin-attenuates-uvb-radiation-induced-actinic-keratosis-formation
#11
Jian Zhang, Na Li, Kun Zhang, Ping Pan, Hui Zhang, Ning Li, Qiong Tian, Li Zhang, Wenli Liu, Tianyuan Gao, Xin Mu, Dengchao Feng, Wei Guo, Xiaona Ma
Actinic keratosis (AK), is the most common precancerous skin lesion induced by the excessive ultraviolet B (UVB) and is a significant threat to the public health. UVB exposure causes oxidative DNA damage and is considered to be a significant contributor to AK and subsequent development of skin cancer. Besides, activation of p38 MAPK also plays a significant role in the development of AK. In our clinical findings revealed that p38 MAPK, phospho-MSK1, and γ-H2AX were significantly highly expressed in human AK tissue than the normal healthy skin tissue...
December 29, 2017: Anti-cancer Agents in Medicinal Chemistry
https://www.readbyqxmd.com/read/29296668/chemical-proteomics-identifies-slc25a20-as-a-functional-target-of-the-ingenol-class-of-actinic-keratosis-drugs
#12
Christopher G Parker, Christian A Kuttruff, Andrea Galmozzi, Lars Jørgensen, Chien-Hung Yeh, Daniel J Hermanson, Yujia Wang, Marta Artola, Steven J McKerrall, Christopher M Josyln, Bjarne Nørremark, Georg Dünstl, Jakob Felding, Enrique Saez, Phil S Baran, Benjamin F Cravatt
The diterpenoid ester ingenol mebutate (IngMeb) is the active ingredient in the topical drug Picato, a first-in-class treatment for the precancerous skin condition actinic keratosis. IngMeb is proposed to exert its therapeutic effects through a dual mode of action involving (i) induction of cell death that is associated with mitochondrial dysfunction followed by (ii) stimulation of a local inflammatory response, at least partially driven by protein kinase C (PKC) activation. Although this therapeutic model has been well characterized, the complete set of molecular targets responsible for mediating IngMeb activity remains ill-defined...
December 27, 2017: ACS Central Science
https://www.readbyqxmd.com/read/29285197/correlation-of-telomere-length-to-malignancy-potential-in-non-melanoma-skin-cancers
#13
Hanae Yamada-Hishida, Yoshimasa Nobeyama, Hidemi Nakagawa
Telomeres are associated with cell fate and aging through their role in the cellular response to stress and growth stimulation resulting from previous cell divisions and DNA damage. Telomere shortening has been observed in most human cancers, and is known to be a feature of malignancy. The aim of this study is to clarify whether telomere length is related to the malignant potential of non-melanoma skin cancers. Telomere length was analyzed using tissue quantitative fluorescence in situ hybridization in 36 non-melanoma skin cancers including basal cell carcinoma (BCC), squamous cell carcinoma (SCC), Bowen's disease (BD) and actinic keratosis (AK), and also in 26 samples of normal-appearing epidermal tissue surrounding or located close to each tumor...
January 2018: Oncology Letters
https://www.readbyqxmd.com/read/29282394/treatment-of-multiple-actinic-keratosis-and-field-of-cancerization-with-topical-piroxicam-0-8-and-sunscreen-50-in-organ-transplant-recipients-a-series-of-10-cases
#14
Virginia Garofalo, Alessandra Ventura, Sara Mazzilli, Laura Diluvio, Luca Bianchi, Luca Toti, Giuseppe Tisone, Massimo Milani, Elena Campione
Organ transplant recipient (OTR) subjects are at high risk of skin cancer such as squamous cell carcinoma and basal cell carcinoma. Actinic keratosis (AK) is considered the precursor of these non-melanoma skin cancers. Sun protection is mandatory in subjects with AK and this preventive strategy is very important in OTR. Treatment of the field of cancerization is also crucial to reduce the risk of recurrence of skin lesions in AK and non-melanoma skin cancer patients. Activation of cyclooxygenase 1 and 2 enzymes plays an important role in the pathogenesis of skin cancers...
September 2017: Case Reports in Dermatology
https://www.readbyqxmd.com/read/29277731/a-real-world-community-based-cohort-study-comparing-the-effectiveness-of-topical-fluoruracil-vs-topical-imiquimod-for-the-treatment-of-actinic-keratosis
#15
Romain Neugebauer, Katherine A Levandoski, Zheng Zhu, Monica Sokil, Mary-Margaret Chren, Gary D Friedman, Maryam M Asgari
BACKGROUND: The most widely used topical agents for the field-based treatment of multiple actinic keratoses (AKs) are 5-fluorouracil and imiquimod, but their comparative effectiveness has not been assessed in a real-world setting. OBJECTIVE: We compared the effectiveness of 5-fluorouracil and imiquimod in reducing risk of subsequent AKs in a large, integrated healthcare delivery system in Northern California. METHODS: In this cohort study, we identified adult health plan members that had an AK diagnosed in 2007 and subsequently filled a prescription for 5-fluorouracil or imiquimod (n=5,700)...
December 22, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/29274094/folliculotropism-in-pigmented-facial-macules-differential-diagnosis-with-reflectance-confocal-microscopy
#16
F Persechino, N De Carvalho, S Ciardo, B De Pace, A Casari, J Chester, S Kaleci, I Stanganelli, C Longo, F Farnetani, G Pellacani
Pigmented facial macules are common on sun damage skin. The diagnosis of early stage lentigo maligna (LM) and lentigo maligna melanoma (LMM) is challenging. Reflectance confocal microscopy (RCM) has been proven to increase diagnostic accuracy of facial lesions. A total 154 pigmented facial macules, retrospectively collected, were evaluate for the presence of already described RCM features and new parameters depicting aspects of the follicle . Melanocytic nests, roundish pagetoid cells, follicular infiltration, bulgings from the follicles and many bright dendrites, and infiltration of the hair follicle (i...
December 22, 2017: Experimental Dermatology
https://www.readbyqxmd.com/read/29262420/neoplastic-multifocal-skin-lesions-biology-etiology-and-targeted-therapies-for-nonmelanoma-skin-cancers
#17
Ana R Fernandes, Ana C Santos, Elena Sanchez-Lopez, Andjekla B Kovačević, Marta Espina, Ana C Calpena, Francisco J Veiga, Maria L Garcia, Eliana B Souto
Neoplastic skin lesions are multifocal, diffuse skin infiltrations of particular relevance in the differential diagnosis of ulcerative, nodular, or crusting skin lesions. Nonmelanoma skin cancers (NMSCs), namely, basal cell carcinoma (BCC), squamous cell carcinoma (SCC), and also actinic keratosis (AK), are the most common malignant tumors in humans. BCCs do not proliferate rapidly and most of the times do not metastasize, while SCCs are more infiltrative, metastatic, and destructive. AKs are precursor lesions of cutaneous SCCs...
December 21, 2017: Skin Pharmacology and Physiology
https://www.readbyqxmd.com/read/29261131/histology-of-non-melanoma-skin-cancers-an-update
#18
REVIEW
Giovanni Paolino, Michele Donati, Dario Didona, Santo Raffaele Mercuri, Carmen Cantisani
Non-melanoma skin cancer (NMSC) is the most frequently diagnosed cancer in humans. Several different non-melanoma skin cancers have been reported in the literature, with several histologic variants that frequently cause important differential diagnoses with other cutaneous tumors basal cell carcinoma (BCC) is the most common malignant skin tumor, with different histologic variants that are associated with a greater or less aggressive behavior and that usually may be confused with other primitive skin tumors...
December 20, 2017: Biomedicines
https://www.readbyqxmd.com/read/29249611/actinic-keratosis-and-diabetes-complications-a-nationwide-population-based-study-in-south-korea-2009-2015
#19
Y Bok Lee, J Hyun Lee, J Young Choi, D Soo Yu, K Do Han, Y Gyu Park
AIM: As the associations between actinic keratosis (AK) and diabetes complications in patients with diabetes mellitus (DM) have never been investigated, this study aimed to evaluate any such associations in patients with DM. METHODS: This retrospective cohort study analyzed clinical data for DM patients aged>40 years who had undergone the health examination recommended by the South Korea National Health Insurance Program between 2009 and 2012 (n=2,056,580). All of these patients were classified according to the presence of diabetic retinopathy (DR), end-stage renal disease (ESRD) and history of DVD; myocardial infarction, stroke, transient ischaemic attacks...
November 29, 2017: Diabetes & Metabolism
https://www.readbyqxmd.com/read/29246367/a-12-day-course-of-imiquimod-5-for-the-treatment-of-actinic-keratosis-effectiveness-and-local-reactions
#20
C Serra-Guillén, E Nagore, B Llombart, O Sanmartín, C Requena, L Calomarde, C Guillén
INTRODUCTION AND OBJECTIVES: Imiquimod is an excellent option for patients with actinic keratosis, although its use may be limited by the long course of treatment required (4 weeks) and the likelihood of local skin reactions. The objectives of the present study were to demonstrate the effectiveness of a 12-day course of imiquimod 5% for the treatment of actinic keratosis and to examine the association between treatment effectiveness and severity of local reactions. PATIENTS AND METHODS: We included patients with at least 8 actinic keratoses treated with imiquimod 5% cream for 12 consecutive days...
December 12, 2017: Actas Dermo-sifiliográficas
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