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https://www.readbyqxmd.com/read/29352285/deep-neural-networks-show-an-equivalent-and-often-superior-performance-to-dermatologists-in-onychomycosis-diagnosis-automatic-construction-of-onychomycosis-datasets-by-region-based-convolutional-deep-neural-network
#1
Seung Seog Han, Gyeong Hun Park, Woohyung Lim, Myoung Shin Kim, Jung Im Na, Ilwoo Park, Sung Eun Chang
Although there have been reports of the successful diagnosis of skin disorders using deep learning, unrealistically large clinical image datasets are required for artificial intelligence (AI) training. We created datasets of standardized nail images using a region-based convolutional neural network (R-CNN) trained to distinguish the nail from the background. We used R-CNN to generate training datasets of 49,567 images, which we then used to fine-tune the ResNet-152 and VGG-19 models. The validation datasets comprised 100 and 194 images from Inje University (B1 and B2 datasets, respectively), 125 images from Hallym University (C dataset), and 939 images from Seoul National University (D dataset)...
2018: PloS One
https://www.readbyqxmd.com/read/29352237/wearable-sweat-rate-sensors-for-human-thermal-comfort-monitoring
#2
Jai Kyoung Sim, Sunghyun Yoon, Young-Ho Cho
We propose watch-type sweat rate sensors capable of automatic natural ventilation by integrating miniaturized thermo-pneumatic actuators, and experimentally verify their performances and applicability. Previous sensors using natural ventilation require manual ventilation process or high-power bulky thermo-pneumatic actuators to lift sweat rate detection chambers above skin for continuous measurement. The proposed watch-type sweat rate sensors reduce operation power by minimizing expansion fluid volume to 0...
January 19, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29351432/diurnal-pattern-in-skin-na-and-water-content-is-associated-with-salt-sensitive-hypertension-in-etb-receptor-deficient-rats
#3
Joshua S Speed, Kelly A Hyndman, Malgorzata Kasztan, Jermaine G Johnston, Kaehler J Roth, Jens M Titze, David M Pollock
Impairment in the ability of the skin to properly store Na+ non-osmotically (without water) has recently been hypothesized as contributing to salt-sensitive hypertension. Our lab has shown that endothelial production of endothelin-1 (ET-1) is crucial to skin Na+ handling. Further, it is well established that loss of ETB receptor function impairs Na+ excretion by the kidney. Thus we hypothesized that rats lacking functional ETB receptors (ETB def) will have a reduced capacity of the skin to store Na+ during chronic high salt (HS) intake...
December 13, 2017: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29351424/clocking-skin-sodium-focus-on-diurnal-patterns-in-skin-sodium-and-water-content-is-associated-with-salt-sensitive-hypertension-in-etb-receptor-deficient-rats
#4
Michelle L Gumz
No abstract text is available yet for this article.
January 3, 2018: American Journal of Physiology. Regulatory, Integrative and Comparative Physiology
https://www.readbyqxmd.com/read/29350788/reliability-and-validity-of-the-atopic-dermatitis-symptom-score
#5
Ji Young Lee, Minji Kim, Hea-Kyoung Yang, Hyun Mi Kim, Joongbum Cho, Young-Min Kim, In Seok Lim, Hae-Kwan Cheong, Hye Seung Kim, Insuk Sohn, Jihyun Kim, Kangmo Ahn
BACKGROUND: We have developed the Atopic Dermatitis Symptom Score (ADSS) by which patients or parents can easily assess and record AD symptoms on a daily basis in a smartphone application. The aim of the present study was to evaluate the reliability and validity of the ADSS. METHODS: We enrolled 307 children and adolescents with AD. Parents or caregivers were asked to record daily symptoms of the patients (itching, sleep disturbance, erythema, dryness, oozing, and oedema) using a scale of 0 to 4...
January 19, 2018: Pediatric Allergy and Immunology
https://www.readbyqxmd.com/read/29350159/clinical-and-molecular-epidemiology-of-staphylococcal-toxic-shock-syndrome-in-the-united-kingdom
#6
Hema Sharma, Debra Smith, Claire E Turner, Laurence Game, Bruno Pichon, Russell Hope, Robert Hill, Angela Kearns, Shiranee Sriskandan
Staphylococcal toxic shock syndrome (TSS) was originally described in menstruating women and linked to TSS toxin 1 (TSST-1)-producing Staphylococcus aureus. Using UK national surveillance data, we ascertained clinical, molecular and superantigenic characteristics of TSS cases. Average annual TSS incidence was 0.07/100,000 population. Patients with nonmenstrual TSS were younger than those with menstrual TSS but had the same mortality rate. Children <16 years of age accounted for 39% of TSS cases, most caused by burns and skin and soft tissue infections...
February 2018: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/29350017/skin-prick-test-analysis-reveals-cross-sensitization-to-tomato-profilin-and-grass-pollen-in-nasobronchialallergic-patients-with-history-of-tomato-food-allergy
#7
V L Hegde, P A Mahesh, Y P Venkatesh
The association between grass pollen sensitization and food allergy to tomato is of great interest. We report here, the first such study in Indian population. We investigated 246 allergic rhinitis / asthma patients by diagnostic case history and skin prick test (SPT); grass pollen mix, tomato extract and purified tomato profilin were used for SPT. Tomato profilin was purified by affinity chromatography, and analyzed by HPLC (95% purity) and SDS-PAGE (14 kDa). We observed that 38% of the patients had sensitization to both grass pollen and tomato fruit, of which 92% were sensitized to tomato profilin...
January 2018: European Annals of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/29348462/piperlongumine-and-p53-reactivator-apr-246-selectively-induce-cell-death-in-hnscc-by-targeting-gstp1
#8
Wei Hang, Zhi-Xian Yin, Gang Liu, Qinghua Zeng, Xiang-Feng Shen, Qian-Hui Sun, Dong-Dong Li, Yong-Ping Jian, Yang-He Zhang, Yi-Shu Wang, Cheng-Shi Quan, Rui-Xun Zhao, Yu-Lin Li, Zhi-Xiang Xu
TP53 mutations frequently occur in head and neck squamous cell carcinoma (HNSCC) patients without human papillomavirus infection. The recurrence rate for these patients is distinctly high. It has been actively explored to identify agents that target TP53 mutations and restore wild-type (WT) TP53 activities in HNSCC. PRIMA-1 (p53-reactivation and induction of massive apoptosis-1) and its methylated analogue PRIMA-1Met (also called APR-246) were found to be able to reestablish the DNA-binding activity of p53 mutants and reinstate the functions of WT p53...
January 18, 2018: Oncogene
https://www.readbyqxmd.com/read/29345473/highly-sensitive-and-ultrastable-skin-sensors-for-biopressure-and-bioforce-measurements-based-on-hierarchical-microstructures
#9
Qi-Jun Sun, Jiaqing Zhuang, Shishir Venkatesh, Ye Zhou, Su-Ting Han, Wei Wu, Ka-Wai Kong, Wen-Jung Li, Xianfeng Chen, Robert K Y Li, Vellaisamy A L Roy
Piezoresistive microsensors are considered to be essential components of the future wearable electronic devices. However, the expensive cost, complex fabrication technology, poor stability, and low yield have limited their developments for practical applications. Here, we present a cost-effective, relatively simple, and high-yield fabrication approach to construct highly sensitive and ultrastable piezoresistive sensors using a bioinspired hierarchically structured graphite/polydimethylsiloxane composite as the active layer...
January 18, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29345434/two-photon-excited-silica-and-organosilica-nanoparticles-for-spatiotemporal-cancer-treatment
#10
REVIEW
Jonas G Croissant, Jeffrey I Zink, Laurence Raehm, Jean-Olivier Durand
Coherent two-photon-excited (TPE) therapy in the near-infrared (NIR) provides safer cancer treatments than current therapies lacking spatial and temporal selectivities because it is characterized by a 3D spatial resolution of 1 µm3 and very low scattering. In this review, the principle of TPE and its significance in combination with organosilica nanoparticles (NPs) are introduced and then studies involving the design of pioneering TPE-NIR organosilica nanomaterials are discussed for bioimaging, drug delivery, and photodynamic therapy...
January 18, 2018: Advanced Healthcare Materials
https://www.readbyqxmd.com/read/29345220/tissue-impression-smears-as-a-supplementary-diagnostic-method-for-histopathology-in-cutaneous-leishmaniasis-in-sri-lanka
#11
Nuwani H Manamperi, M Vipula C de Silva, Nishantha Pathirana, Wimal Abeyewickreme, Nadira D Karunaweera
Cutaneous leishmaniasis (CL) is diagnosed mainly by light microscopy of smears made using lesion material. Histopathology is usually done in atypical presentations or when lesion smears are negative. Tissue impression smears (TIS) made from skin biopsy specimens were compared with histopathology for the diagnosis of CL. Out of the 111 patients included, 83 (74.8%) were positive by either methods. The TIS was positive in 70.3% whereas histopathology was positive in 56.8% of patients. Tissue impression smears can be used as a supplementary diagnostic test that gives sensitive and rapid results when tissue biopsies are used as the source of lesion material for diagnosis of CL...
January 15, 2018: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29344323/the-impact-of-quantitative-data-provided-by-a-multi-spectral-digital-skin-lesion-analysis-device-on-dermatologists-decisions-to-biopsy-pigmented-lesions
#12
Aaron S Farberg, Richard R Winkelmann, Natalie Tucker, Richard White, Darrell S Rigel
BACKGROUND: Early diagnosis of melanoma is critical to survival. New technologies, such as a multi-spectral digital skin lesion analysis (MSDSLA) device [MelaFind, STRATA Skin Sciences, Horsham, Pennsylvania] may be useful to enhance clinician evaluation of concerning pigmented skin lesions. Previous studies evaluated the effect of only the binary output. OBJECTIVE: The objective of this study was to determine how decisions dermatologists make regarding pigmented lesion biopsies are impacted by providing both the underlying classifier score (CS) and associated probability risk provided by multi-spectral digital skin lesion analysis...
September 2017: Journal of Clinical and Aesthetic Dermatology
https://www.readbyqxmd.com/read/29343242/stage-of-cancer-diagnoses-among-migrants-from-the-former-soviet-union-in-comparison-to-the-german-population-are-diagnoses-among-migrants-delayed
#13
An Bin Cho, Philipp Jaehn, Bernd Holleczek, Heiko Becher, Volker Winkler
BACKGROUND: In this study, we compared stage at diagnosis, standardized incidence ratio (SIR) and standardized mortality ratio (SMR) of most frequent cancer diagnoses between re-settlers (Aussiedler) from the former Soviet Union and the general population in the Saarland in Germany to assess possible delays in diagnosis of cancer among this migrant group. METHODS: Lung cancer, colorectal cancer, breast cancer, prostate cancer, malignant melanoma of the skin and stomach cancer diagnoses among a cohort of 18,619 re-settlers living in the Saarland between 1990 and 2009 were identified by the federal state's cancer registry...
January 17, 2018: BMC Public Health
https://www.readbyqxmd.com/read/29342467/boiling-and-pressure-cooking-impact-on-ige-reactivity-of-soybean-allergens
#14
Beatriz Cabanillas, Carmen Cuadrado, Julia Rodriguez, Maria Carmen Dieguez, Jesus F Crespo, Natalija Novak
BACKGROUND: Soybean is one of the 8 foods that causes the most significant rate of food allergies in the USA and Europe. Thermal processing may impact on the allergenic potential of certain foods. We aimed to investigate modifications of the IgE-binding properties of soybean proteins due to processing methods that have been previously found to impact on the allergenicity of legumes such as peanut. METHODS: Soybean seeds were subjected to different thermal processing treatments...
January 18, 2018: International Archives of Allergy and Immunology
https://www.readbyqxmd.com/read/29339577/a-wearable-pressure-sensor-based-on-ultra-violet-ozone-microstructured-carbon-nanotube-polydimethylsiloxane-arrays-for-electronic-skins
#15
Guohui Yu, Jingdong Hu, Jianping Tan, Yang Gao, Yongfeng Lu, Fu-Zhen Xuan
Pressure sensors with high performance (e.g., a broad pressure sensing range, high sensitivities, rapid response/relaxation speeds, temperature-stable sensing), as well as a cost-effective and highly efficient fabrication method are highly desired for electronic skins. In this research, a high-performance pressure sensor based on microstructured carbon nanotube/polydimethylsiloxane arrays was fabricated using an ultra-violet/ozone (UV/O3) microengineering technique. The UV/O3 microengineering technique is controllable, cost-effective, and highly efficient since it is conducted at room temperature in an ambient environment...
January 17, 2018: Nanotechnology
https://www.readbyqxmd.com/read/29339127/the-basophil-activation-test-can-be-of-value-for-diagnosing-immediate-allergic-reactions-to%C3%A2-omeprazole
#16
Jose J Laguna, Gador Bogas, Maria Salas, Cristobalina Mayorga, Javier Dionicio, Rosario Gonzalez-Mendiola, Adriana Ariza, Ruben Fernández-Santamaría, Isabel Olazabal, Inmaculada Doña, Tahia D Fernandez, Maria J Torres
BACKGROUND: Proton pump inhibitors (PPIs) are commonly used to treat gastrointestinal diseases. Incidence of hypersensitivity reactions to PPIs has risen, likely because of increased consumption. Their diagnosis is difficult, with skin tests (STs) presenting low sensitivity, making it necessary to perform drug provocation tests (DPTs). The value of in vitro tests for the diagnosis of immediate reaction to PPI is unclear. OBJECTIVE: To analyze the diagnostic value of the basophil activation test (BAT) in a group of patients diagnosed with immediate allergy to omeprazole...
January 12, 2018: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/29338939/immune-cytokines-and-their-receptors-in-inflammatory-pain
#17
REVIEW
Andrew D Cook, Anne D Christensen, Damini Tewari, Stephen B McMahon, John A Hamilton
There is burgeoning interest in the interaction between the immune and nervous systems. Pain is mediated by primary sensory neurons (nociceptors) that can respond to a variety of thermal, mechanical and chemical signals. Cytokines are now recognized as important mediators of inflammatory pain. They can induce nociceptor sensitization indirectly via mediators, wherein neurons become primed and thus become more responsive to stimulation; alternatively, there is also evidence that cytokines can directly activate neurons via their specific receptors present on the neuronal cells...
January 12, 2018: Trends in Immunology
https://www.readbyqxmd.com/read/29337844/melanoma-of-the-skin-in-the-danish-cancer-registry-and-the-danish-melanoma-database-a-validation-study
#18
Sidsel Arnspang Pedersen, Sigrun Alba Johannesdottir Schmidt, Siri Klausen, Anton Pottegård, Søren Friis, Lisbet Rosenkrantz Hölmich, David Gaist
BACKGROUND: The nationwide Danish Cancer Registry and the Danish Melanoma Database both record data on melanoma for purposes of monitoring, quality assurance and research. However, the data quality of the Cancer Registry and the Melanoma Database has not been formally evaluated. METHODS: We estimated the positive predictive value (PPV) of melanoma diagnosis for random samples of 200 patients from the Cancer Registry (n=200) and the Melanoma Database (n=200) during 2004-2014, using the Danish Pathology Registry as 'gold-standard' reference...
January 15, 2018: Epidemiology
https://www.readbyqxmd.com/read/29337217/peptide-drug-stability-the-anti-inflammatory-drugs-pep19-2-5-and-pep19-4lf-in-cream-formulation
#19
Nicole Kuhlmann, Lena Heinbockel, Wilmar Correa, Thomas Gutsmann, Torsten Goldmann, Uwe Englisch, Klaus Brandenburg
In previous years, we developed anti-infective drugs based on antimicrobial peptides (AMPs), which have been shown to effectively block severe infections and inflammation in vitro as well as in vivo. Besides systemic application, the occurrence of severe local infections necessitates a topical application for example in the case of severe skin and soft tissue infections (SSTI). Recent investigations show that the synthetic anti-lipopolysaccharide peptide (SALP) Pep19-2.5 (Aspidasept® I) and a variant called Pep19-4LF (Aspidasept® II) are able to supress inflammation reactions also in keratinocytes, Langerhans cells, and dendritic cells from the skin...
January 11, 2018: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/29337163/utility-of-ultra-deep-sequencing-for-detection-of-varicella-zoster-virus-antiviral-resistance-mutations
#20
Mélanie Mercier-Darty, David Boutolleau, Raphaël Lepeule, Christophe Rodriguez, Sonia Burrel
We report the first application of ultra-deep sequencing (UDS) to varicella-zoster virus (VZV) genotypic antiviral testing in a case of acyclovir-resistant VZV infection initially detected by Sanger sequencing within a deeply immunocompromised heart transplant recipient. As added-value compared to Sanger analysis, UDS revealed complex dynamics of viral population under antiviral pressure. Varicella-zoster virus (VZV) is a ubiquitous human herpesvirus affecting populations worldwide. VZV is commonly acquired in youth whose primary infection usually manifests as benign varicella (chickenpox)...
January 11, 2018: Antiviral Research
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