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https://www.readbyqxmd.com/read/28593303/factors-in-early-adolescence-associated-with-a-mole-prone-phenotype-in-late-adolescence
#1
Haoming Xu, Michael A Marchetti, Stephen W Dusza, Esther Chung, Maira Fonseca, Alon Scope, Alan C Geller, Marilyn Bishop, Ashfaq A Marghoob, Allan C Halpern
Importance: Nevi are important phenotypic risk factors for melanoma in adults. Few studies have examined the constitutional and behavioral factors associated with a mole-prone phenotype in adolescents. Objective: To identify host, behavioral, and dermoscopic factors in early adolescence (age, 14 years) that are associated with a mole-prone phenotype in late adolescence (age, 17 years). Design, Setting, and Participants: A prospective observational cohort study from the Study of Nevi in Children was conducted from January 1, 2009, to December 31, 2014, with a 2- to 3-year follow-up...
June 7, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28512610/melanoma-is-skin-deep-a-3d-reconstruction-technique-for-computerized-dermoscopic-skin-lesion-classification
#2
T Y Satheesha, D Satyanarayana, M N Giri Prasad, Kashyap D Dhruve
Melanoma mortality rates are the highest amongst skin cancer patients. Melanoma is life threating when it grows beyond the dermis of the skin. Hence, depth is an important factor to diagnose melanoma. This paper introduces a non-invasive computerized dermoscopy system that considers the estimated depth of skin lesions for diagnosis. A 3-D skin lesion reconstruction technique using the estimated depth obtained from regular dermoscopic images is presented. On basis of the 3-D reconstruction, depth and 3-D shape features are extracted...
2017: IEEE Journal of Translational Engineering in Health and Medicine
https://www.readbyqxmd.com/read/28360969/ticks-and-tick-bites-presenting-as-funny-moles-a-review-of-different-presentations-and-a-focus-on-tick-borne-diseases
#3
Joseph R Kallini, Amor Khachemoune
Purpose: To describe a man with an adherent tick mimicking a melanoma, summarize the salient features of this condition, and review other cases of ticks mistaken for dermatoses. Background: Ticks are obligatory ectoparasites. Disease-causing ticks belong to two families: Ixodidae (hard ticks) and Argasidae (soft ticks). Ticks thrive by consuming blood from animal hosts, and the transfer of infected blood from one host to the next is the method by which ticks spread disease. Materials and methods: The authors describe a man who presented to their dermatology clinic in New York with an unusual black pigmented lesion on the right zygomatic region of his face...
March 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/28342106/extraction-of-skin-lesions-from-non-dermoscopic-images-for-surgical-excision-of-melanoma
#4
M Hossein Jafari, Ebrahim Nasr-Esfahani, Nader Karimi, S M Reza Soroushmehr, Shadrokh Samavi, Kayvan Najarian
PURPOSE: Computerized prescreening of suspicious moles and lesions for malignancy is of great importance for assessing the need and the priority of the removal surgery. Detection can be done by images captured by standard cameras, which are more preferable due to low cost and availability. One important step in computerized evaluation is accurate detection of lesion's region, i.e., segmentation of an image into two regions as lesion and normal skin. METHODS: In this paper, a new method based on deep neural networks is proposed for accurate extraction of a lesion region...
June 2017: International Journal of Computer Assisted Radiology and Surgery
https://www.readbyqxmd.com/read/28330494/pseudomonas-oryzihabitans-sepsis-in-a-1-year-old-child-with-multiple-skin-rashes-a-case-report
#5
Michael Owusu, Ellis Owusu-Dabo, Godfred Acheampong, Isaac Osei, John Amuasi, Nimako Sarpong, Augustina Annan, Hsin-Ying Chiang, Chih-Horng Kuo, Se Eun Park, Florian Marks, Yaw Adu-Sarkodie
BACKGROUND: Pseudomonas oryzihabitans is a Pseudomonas bacterial organism rarely implicated in human infections. The bacterium has been isolated in a few reported cases of neurosurgical infections and patients with end-stage cirrhosis, sickle cell disease, and community-acquired urinary tract infections. Limited information exists in developing countries, however, because of the lack of advanced microbiological tools for identification and characterization of this bacterium. This case report describes the isolation of a rare Pseudomonas bacterium in a patient presenting with sepsis and skin infection...
March 23, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28268577/automatic-detection-of-melanoma-using-broad-extraction-of-features-from-digital-images
#6
M H Jafari, S Samavi, N Karimi, S M R Soroushmehr, K Ward, K Najarian
Automatic and reliable diagnosis of skin cancer, as a smartphone application, is of great interest. Among different types of skin cancers, melanoma is the most dangerous one which causes most deaths. Meanwhile, melanoma is curable if it were diagnosed in its early stages. In this paper we propose an efficient system for prescreening of pigmented skin lesions for malignancy using general-purpose digital cameras. These images can be captured by a smartphone or a digital camera. This could be beneficial in different applications, such as computer aided diagnosis and telemedicine applications...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28226755/automatic-detection-of-melanoma-using-broad-extraction-of-features-from-digital-images
#7
M H Jafari, S Samavi, N Karimi, S M R Soroushmehr, K Ward, K Najarian, M H Jafari, S Samavi, N Karimi, S M R Soroushmehr, K Ward, K Najarian, K Ward, M H Jafari, S M R Soroushmehr, S Samavi, K Najarian, N Karimi
Automatic and reliable diagnosis of skin cancer, as a smartphone application, is of great interest. Among different types of skin cancers, melanoma is the most dangerous one which causes most deaths. Meanwhile, melanoma is curable if it were diagnosed in its early stages. In this paper we propose an efficient system for prescreening of pigmented skin lesions for malignancy using general-purpose digital cameras. These images can be captured by a smartphone or a digital camera. This could be beneficial in different applications, such as computer aided diagnosis and telemedicine applications...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28195576/the-mole-mapper-study-mobile-phone-skin-imaging-and-melanoma-risk-data-collected-using-researchkit
#8
Dan E Webster, Christine Suver, Megan Doerr, Erin Mounts, Lisa Domenico, Tracy Petrie, Sancy A Leachman, Andrew D Trister, Brian M Bot
Sensor-embedded phones are an emerging facilitator for participant-driven research studies. Skin cancer research is particularly amenable to this approach, as phone cameras enable self-examination and documentation of mole abnormalities that may signal a progression towards melanoma. Aggregation and open sharing of this participant-collected data can be foundational for research and the development of early cancer detection tools. Here we describe data from Mole Mapper, an iPhone-based observational study built using the Apple ResearchKit framework...
February 14, 2017: Scientific Data
https://www.readbyqxmd.com/read/28095445/cytosolic-rna-dna-duplexes-generated-by-endogenous-reverse-transcriptase-activity-as-autonomous-inducers-of-skin-inflammation-in-psoriasis
#9
Jean-Pierre Molès, Anthony Griez, Jean-Jacques Guilhou, Céline Girard, Nicolas Nagot, Philippe Van de Perre, Pierre Dujols
Psoriasis is a chronic skin disease of unknown ætiology. Recent studies suggested that a large amount of cytosolic DNA (cyDNA) in keratinocytes is breaking keratinocytes DNA tolerance and promotes self-sustained inflammation in the psoriatic lesion. We investigated the origin of this cyDNA. We show that, amongst all the possible DNA structures, the cyDNA could be present as RNA:DNA duplexes in keratinocytes. We further show that endogenous reverse transcriptase activities generate such duplexes and consequently activate the production of Th1-inflammatory cytokines...
2017: PloS One
https://www.readbyqxmd.com/read/28095280/relative-importance-of-traditional-risk-factors-for-malignant-melanoma-in-the-czech-population
#10
Lucie Rajská, Dana Göpfertová, Jana Hercogová, Anna Jiráková, Zuzana Sečníková, Filip Rob, Zdeněk Šmerhovský
AIM: The Czech Republic is one of the leading European countries in incident cases of malignant melanoma (MM), which is on the rise. The study objective was to assess the strength of associations between MM and the known generally accepted risk factors for MM in the population of the Czech Republic. METHODS: The study was designed as a case-control study where cases were incident cases of MM detected at the Department of Dermatology and Venereology of the Bulovka Hospital...
December 2016: Central European Journal of Public Health
https://www.readbyqxmd.com/read/27964893/dermatological-cancer-screening-evaluation-of-a-new-community-pharmacy-service
#11
Reidun L S Kjome, David J Wright, Anne-Kristin B Bjaaen, Kjersti W Garstad, Mette Valeur
BACKGROUND: Skin cancer accounts for one third of all cancers. Prognosis is inversely related to identification stage. OBJECTIVES: To describe a novel service, mole scans, performed in community pharmacy, the findings from the first 3.5 years it was in place, and to explore patient acceptability of the service. METHODS: Norwegian Boots' pharmacies offer a mole scanning service in cooperation with ScreenCancer. Scans are undertaken within pharmacy consultation rooms...
December 6, 2016: Research in Social & Administrative Pharmacy: RSAP
https://www.readbyqxmd.com/read/27926637/pigmentation-and-pregnancy-knowing-what-is-normal
#12
Amy Kalowitz Bieber, Kathryn J Martires, Jennifer A Stein, Jane M Grant-Kels, Marcia S Driscoll, Miriam Keltz Pomeranz
Changes in melanocytic nevi during pregnancy are frequently attributed to the new hormonal milieu and are dismissed without concern for malignancy. Recent studies suggest that pregnancy itself does not induce significant change in nevi, and delays in the assessment of changing moles may contribute to the often more advanced nature of melanomas diagnosed during or soon after pregnancy. Nevi on the breasts and abdomen can grow as a result of skin expansion, but studies have found no significant changes in nevi located in more stable areas such as the back or lower extremities...
January 2017: Obstetrics and Gynecology
https://www.readbyqxmd.com/read/27886809/small-mammal-utilization-by-middle-stone-age-humans-at-die-kelders-cave-1-and-pinnacle-point-site-5-6-western-cape-province-south-africa
#13
Aaron Armstrong
Reported here are the results of a taphonomic analysis of the small mammals (between 0.75 kg and 4.5 kg adult body weight) and size 1 bovids (≤20 kg adult body weight) from the Middle Stone Age (MSA) sites of Die Kelders Cave 1 (DK1) and Pinnacle Point Site 5-6 (PP5-6), Western Cape Province, South Africa. This study provides a comprehensive taphonomic analysis of MSA small mammals with a focus on discerning the role of humans in their accumulation and the implications for human behavioral adaptations...
December 2016: Journal of Human Evolution
https://www.readbyqxmd.com/read/27863375/h2o2-treatment-or-serum-deprivation-induces-autophagy-and-apoptosis-in-naked-mole-rat-skin-fibroblasts-by-inhibiting-the-pi3k-akt-signaling-pathway
#14
Shanmin Zhao, Li Li, Shiyong Wang, Chenlin Yu, Bang Xiao, Lifang Lin, Wei Cong, Jishuai Cheng, Wenjing Yang, Wei Sun, Shufang Cui
Naked mole-rats (NMR; Heterocephalus glaber) display extreme longevity and resistance to cancer. Here, we examined whether autophagy contributes to the longevity of NMRs by assessing the effects of the PI3K/Akt pathway inhibitor LY294002 and the autophagy inhibitor chloroquine (CQ) on autophagy and apoptosis in NMR skin fibroblasts. Serum starvation, H2O2 treatment, and LY294002 treatment all increased the LC3-II/LC3-I ratio and numbers of double-membraned autophagosomes and autophagic vacuoles, and decreased levels of p70S6K, p-AktSer473, and p-AktThr308...
December 20, 2016: Oncotarget
https://www.readbyqxmd.com/read/27768578/a-prospective-observational-study-to-assess-the-use-of-thermography-to-predict-progression-of-discolored-intact-skin-to-necrosis-among-patients-in-skilled-nursing-facilities
#15
Jill Cox, Loretta Kaes, Miguel Martinez, Daniel Moles
Skin temperature may help prospectively determine whether an area of skin discoloration will evolve into necrosis. A prospective, observational study was conducted in 7 skilled nursing facilities to determine if skin temperature measured using infrared thermography could predict the progression of discolored intact skin (blanchable erythema, Stage 1 pressure ulcer, or sus- pected deep tissue injury [sDTI]) to necrosis and to evaluate if nurses could effectively integrate thermography into the clinical setting...
October 2016: Ostomy/wound Management
https://www.readbyqxmd.com/read/27757237/coping-with-heat-behavioural-and-physiological-responses-of-savanna-elephants-in-their-natural-habitat
#16
Michael A Mole, Shaun Rodrigues DÁraujo, Rudi J van Aarde, Duncan Mitchell, Andrea Fuller
Most of southern Africa's elephants inhabit environments where environmental temperatures exceed body temperature, but we do not know how elephants respond to such environments. We evaluated the relationships between apparent thermoregulatory behaviour and environmental, skin and core temperatures for tame savanna elephants (Loxodonta africana) that were free-ranging in the hot parts of the day, in their natural environment. Environmental temperature dictated elephant behaviour within a day, with potential consequences for fine-scale habitat selection, space use and foraging...
2016: Conservation Physiology
https://www.readbyqxmd.com/read/27748606/ph-sensitive-nanomicelles-for-high-efficiency-sirna-delivery-in-vitro-and-in-vivo-an-insight-into-the-design-of-polycations-with-robust-cytosolic-release
#17
Junhui Zhou, Yidi Wu, Changrong Wang, Qiang Cheng, Shangcong Han, Xiaoxia Wang, Jianhua Zhang, Liandong Deng, Deyao Zhao, Lili Du, Huiqing Cao, Zicai Liang, Yuanyu Huang, Anjie Dong
The extremely low efficient cytosolic release of the internalized siRNA has emerged recently as a central issue for siRNA delivery, while there is a lack of guidelines to facilitate the cytosolic release of internalized siRNA. To address these concerns, we studied the contribution of the pH-sensitive inner core on handling the cytosolic release of siRNA delivered by a series of PG-P(DPAx-co-DMAEMAy)-PCB amphiphilic polycation nanomicelles (GDDC-Ms) with extremely low internalization (<1/4 of lipofactamine 2000 (Lipo2000))...
November 9, 2016: Nano Letters
https://www.readbyqxmd.com/read/27689254/doctors-recognition-and-management-of-melanoma-patients-risk-an-australian-population-based-study
#18
C M Madronio, B K Armstrong, C G Watts, C Goumas, R L Morton, A Curtin, S W Menzies, G J Mann, J F Thompson, A E Cust
BACKGROUND: Guidelines recommend that health professionals identify and manage individuals at high risk of developing melanoma, but there is limited population-based evidence demonstrating real-world practices. OBJECTIVE: A population-based, observational study was conducted in the state of New South Wales, Australia to determine doctors' knowledge of melanoma patients' risk and to identify factors associated with better identification and clinical management. METHODS: Data were analysed for 1889 patients with invasive, localised melanoma in the Melanoma Patterns of Care study...
December 2016: Cancer Epidemiology
https://www.readbyqxmd.com/read/27676207/immunohistochemical-localization-of-androgen-receptors-in-female-mole-rat-spalax-leucodon-tissues
#19
F M Gur, S Timurkaan
Androgens exert their effects through androgen receptors (AR) in tissues. We investigated the distribution of AR in female mole rat tissues. Tissues were excised, fixed with 10% formalin and embedded in paraffin. Sections were stained after microwave antigen retrieval for immunohistochemistry. Immunostaining of AR immunostaining was detected in the nucleus or cytoplasm of the cells in the cerebral cortex, cerebellum, anterior pituitary, lung, liver, uterus and skin. Granulosa and some thecal cells in the ovary, cardiac muscle cells and adipose cells exhibited a nuclear reaction for AR...
October 2016: Biotechnic & Histochemistry: Official Publication of the Biological Stain Commission
https://www.readbyqxmd.com/read/27646736/nevi-and-pregnancy
#20
REVIEW
Amy Kalowitz Bieber, Kathryn J Martires, Marcia S Driscoll, Jane M Grant-Kels, Miriam Keltz Pomeranz, Jennifer A Stein
Changes in the moles of pregnant women are frequently attributed to pregnancy, but recent studies suggest that pregnancy does not induce significant physiologic changes in nevi. It is common for nevi on the breasts and abdomen to grow with normal skin expansion, but studies that have examined melanocytic nevi on the backs or lower extremities have found no significant changes in size during pregnancy. Several studies have also investigated the belief that moles darken during pregnancy and have found insufficient evidence to support this idea...
October 2016: Journal of the American Academy of Dermatology
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