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https://www.readbyqxmd.com/read/28212537/itraconazole-exerts-its-anti-melanoma-effect-by-suppressing-hedgehog-wnt-and-pi3k-mtor-signaling-pathways
#1
Guanzhao Liang, Musang Liu, Qiong Wang, Yongnian Shen, Huan Mei, Dongmei Li, Weida Liu
Malignant melanoma is the deadliest form of all skin cancers. Itraconazole, a commonly used systemic antifungal drug, has been tested for its anti-tumor effects on basal cell carcinoma, prostate cancer, and non-small cell lung cancer. Whether itraconazole has any specific anti-tumor effect on melanoma remains unknown. However, the goal of this study is to investigate the effect of itraconazole on melanoma and to reveal some details of its underlying mechanism. In the in vivo xenograft mouse model, we find that itraconazole can inhibit melanoma growth and extend the survival of melanoma xenograft mice, compared to non-itraconazole-treated mice...
February 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28212527/a-multicenter-phase-ii-study-of-salvage-photodynamic-therapy-using-talaporfin-sodium-me2906-and-a-diode-laser-pnl6405epg-for-local-failure-after-chemoradiotherapy-or-radiotherapy-for-esophageal-cancer
#2
Tomonori Yano, Hiroi Kasai, Takahiro Horimatsu, Kenichi Yoshimura, Satoshi Teramukai, Satoshi Morita, Harue Tada, Yoshinobu Yamamoto, Hiromi Kataoka, Naomi Kakushima, Ryu Ishihara, Hajime Isomoto, Manabu Muto
Photodynamic therapy (PDT) showed promising efficacy for local failure after chemoradiotherapy (CRT) for esophageal cancer. However, PDT required long sun shade period. This study aimed to evaluate the safety and efficacy of PDT using second generation photosensitizer, talaporfin sodium for local failure after CRT. This was the multi-institutional non-randomized phase II study. Patients with histologically proven local failure limited within the muscularis propria after 50Gy or more radiotherapy (RT) for esophageal cancer were eligible...
December 20, 2016: Oncotarget
https://www.readbyqxmd.com/read/28212382/de-novo-assembly-of-the-sea-trout-salmo-trutta-m-trutta-skin-transcriptome-to-identify-putative-genes-involved-in-the-immune-response-and-epidermal-mucus-secretion
#3
Magdalena Malachowicz, Roman Wenne, Artur Burzynski
In fish, the skin is a multifunctional organ and the first barrier against pathogens. Salmonids differ in their susceptibility to microorganisms due to varied skin morphology and gene expression patterns. The brown trout is a salmonid species with important commercial and ecological value in Europe. However, there is a lack of knowledge regarding the genes involved in the immune response and mucus secretion in the skin of this fish. Thus, we characterized the skin transcriptome of anadromous brown trout using next-generation sequencing (NGS)...
2017: PloS One
https://www.readbyqxmd.com/read/28212278/the-effect-of-the-human-peptide-ghk-on-gene-expression-relevant-to-nervous-system-function-and-cognitive-decline
#4
Loren Pickart, Jessica Michelle Vasquez-Soltero, Anna Margolina
Neurodegeneration, the progressive death of neurons, loss of brain function, and cognitive decline is an increasing problem for senior populations. Its causes are poorly understood and therapies are largely ineffective. Neurons, with high energy and oxygen requirements, are especially vulnerable to detrimental factors, including age-related dysregulation of biochemical pathways caused by altered expression of multiple genes. GHK (glycyl-l-histidyl-l-lysine) is a human copper-binding peptide with biological actions that appear to counter aging-associated diseases and conditions...
February 15, 2017: Brain Sciences
https://www.readbyqxmd.com/read/28212143/staphylococcus-aureus-infections-some-second-thoughts
#5
Willem J B van Wamel
PURPOSE OF REVIEW: Staphylococcus aureus (S. aureus) is well known for its ability to cause life-threatening infections. On the other hand, this bacterium can thrive as a commensal on and in human tissues without causing much problems. How big a threat is S. aureus actually? Furthermore, commensalism is associated with biofilms, where can we find them, and which natural and artificial components activate biofilm formation? RECENT FINDINGS: Recent findings on S. aureus carriage on skin, mucosa, and in wounds indicate the presence of large numbers of S...
February 15, 2017: Current Opinion in Infectious Diseases
https://www.readbyqxmd.com/read/28212130/periorbital-soft-tissue-anthropometric-analysis-of-young-adults
#6
Turan Ozdemir, Fatma Ezgi Can, Sefa Isiklar, Ilker Ercan, Nedim Simsek Cankur
The authors aim to determine the periorbital soft tissue anthropometric norms for Turkish young adults for right and left eyes using a noninvasive two-dimensional photogrammetric analysis. Anthropometric measurements of the periorbital soft tissue were taken from 172 female and 56 male Turkish adults aged between 18 and 24 years. The periorbital soft tissue profiles (ocular and palpebral) for males and females were digitally analyzed using linear measurements made with standardized photographic records, taken in a natural head position...
February 16, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28211972/tsc2-c-1864c-t-variant-associated-with-mild-cases-of-tuberous-sclerosis-complex
#7
Laura S Farach, William T Gibson, Steven P Sparagana, Mark Nellist, Connie T R M Stumpel, Marja Hietala, Elliott Friedman, Deborah A Pearson, Susan P Creighton, Annemiek Wagemans, Reveel Segel, Efrat Ben-Shalom, Kit Sing Au, Hope Northrup
Tuberous sclerosis complex (TSC) is an autosomal dominantly inherited disorder with variable expressivity associated with hamartomatous tumors, abnormalities of the skin, and neurologic problems including seizures, intellectual disability, and autism. TSC is caused by pathogenic variants in either TSC1 or TSC2. In general, TSC2 pathogenic variants are associated with a more severe phenotype than TSC1 pathogenic variants. Here, we report a pathogenic TSC2 variant, c.1864C>T, p.(Arg622Trp), associated with a mild phenotype, with most carriers meeting fewer than two major clinical diagnostic criteria for TSC...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28211872/rictor-mtorc2-deficiency-enhances-keratinocyte-stress-tolerance-via-mitohormesis
#8
Beatrice Tassone, Stefania Saoncella, Francesco Neri, Ugo Ala, Davide Brusa, Mark A Magnuson, Paolo Provero, Salvatore Oliviero, Chiara Riganti, Enzo Calautti
How metabolic pathways required for epidermal tissue growth and remodeling influence the ability of keratinocytes to survive stressful conditions is still largely unknown. The mechanistic target of rapamycin complex 2 (mTORC2) regulates growth and metabolism of several tissues, but its functions in epidermal cells are poorly defined. Rictor is an adaptor protein essential for mTORC2 activity. To explore the roles of mTORC2 in the epidermis, we have conditionally deleted rictor in mice via K14-Cre-mediated homologous recombination and found that its deficiency causes moderate tissue hypoplasia, reduced keratinocyte proliferation and attenuated hyperplastic response to TPA...
February 17, 2017: Cell Death and Differentiation
https://www.readbyqxmd.com/read/28211587/histaminergic-and-non-histaminergic-elicited-itch-is-attenuated-in-capsaicin-evoked-areas-of-allodynia-and-hyperalgesia-a-healthy-volunteer-study
#9
H H Andersen, J Elberling, N Sharma, L E Hauberg, P Gazerani, L Arendt-Nielsen
BACKGROUND: Chronic pain patients with sensitization may exhibit decreased sensitivity to normally pruritogenic sensory stimuli and moreover occasionally perceive these as painful. This study explored the relationship between itch and pain, by evaluating histaminergic and non-histaminergic itch evoked in capsaicin-induced allodynic and hyperalgesic areas. METHODS: In 28 healthy volunteers, capsaicin (100 μg/0.1 mL) was injected intradermally in the volar forearm to establish secondary dysesthesias...
February 17, 2017: European Journal of Pain: EJP
https://www.readbyqxmd.com/read/28211538/wafer-scale-two-dimensional-semiconductors-from-printed-oxide-skin-of-liquid-metals
#10
Benjamin J Carey, Jian Zhen Ou, Rhiannon M Clark, Kyle J Berean, Ali Zavabeti, Anthony S R Chesman, Salvy P Russo, Desmond W M Lau, Zai-Quan Xu, Qiaoliang Bao, Omid Kevehei, Brant C Gibson, Michael D Dickey, Richard B Kaner, Torben Daeneke, Kourosh Kalantar-Zadeh
A variety of deposition methods for two-dimensional crystals have been demonstrated; however, their wafer-scale deposition remains a challenge. Here we introduce a technique for depositing and patterning of wafer-scale two-dimensional metal chalcogenide compounds by transforming the native interfacial metal oxide layer of low melting point metal precursors (group III and IV) in liquid form. In an oxygen-containing atmosphere, these metals establish an atomically thin oxide layer in a self-limiting reaction...
February 17, 2017: Nature Communications
https://www.readbyqxmd.com/read/28211533/integration-of-microrna-and-mrna-expression-profiles-in-the-skin-of-systemic-sclerosis-patients
#11
Bin Zhou, Xiao Xia Zuo, Yi Sha Li, Si Ming Gao, Xiao Dan Dai, Hong Lin Zhu, Hui Luo
MicroRNAs (miRNAs) play important roles in the fibrosis of systemic sclerosis (SSc). However, the underlying miRNA-mRNA regulatory network is not fully understood. A systemic investigation of the role of miRNAs would be very valuable for increasing our knowledge of the pathogenesis of SSc. Here, we combined miRNA and mRNA expression profiles and bioinformatics analyses and then performed validation experiments. we identified 21 miRNAs and 2698 mRNAs that were differentially expressed in SSc. Among these, 17 miRNAs and their 33 target mRNAs (55 miRNA-mRNA pairs) were involved in Toll-like receptor, transforming growth factor β and Wnt signalling pathways...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211524/epigenetic-and-genetic-dissections-of-uv-induced-global-gene-dysregulation-in-skin-cells-through-multi-omics-analyses
#12
Yao Shen, Milda Stanislauskas, Gen Li, Deyou Zheng, Liang Liu
To elucidate the complex molecular mechanisms underlying the adverse effects UV radiation (UVR) on skin homeostasis, we performed multi-omics studies to characterize UV-induced genetic and epigenetic changes. Human keratinocytes from a single donor treated with or without UVR were analyzed by RNA-seq, exome-seq, and H3K27ac ChIP-seq at 4 h and 72 h following UVR. Compared to the relatively moderate mutagenic effects of UVR, acute UV exposure induced substantial epigenomic and transcriptomic alterations, illuminating a previously underappreciated role of epigenomic and transcriptomic instability in skin pathogenesis...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211464/molecular-basis-of-abhd5-lipolysis-activation
#13
Matthew A Sanders, Huamei Zhang, Ljiljana Mladenovic, Yan Yuan Tseng, James G Granneman
Alpha-beta hydrolase domain-containing 5 (ABHD5), the defective gene in human Chanarin-Dorfman syndrome, is a highly conserved regulator of adipose triglyceride lipase (ATGL)-mediated lipolysis that plays important roles in metabolism, tumor progression, viral replication, and skin barrier formation. The structural determinants of ABHD5 lipolysis activation, however, are unknown. We performed comparative evolutionary analysis and structural modeling of ABHD5 and ABHD4, a functionally distinct paralog that diverged from ABHD5 ~500 million years ago, to identify determinants of ABHD5 lipolysis activation...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28211307/local-and-systemic-changes-associated-with-long-term-percutaneous-static-implantation-of-titanium-alloys-in-rhesus-macaques-macaca-mulatta
#14
Galit H Frydman Robert P Marini Vasudevan Bakthavatchalu Kathleen E Biddle Sureshkumar Muthupalani Charles R Vanderburg Barry Lai Pavan K Bendapudi Ronald G Tompkins And James G Fox
Metal alloys are frequently used as implant materials in veterinary medicine. Recent studies suggest that many alloys induce both local and systemic inflammatory responses. In this study, 37 rhesus macaques with long-term skull-anchored percutaneous titanium alloy implants (duration, 0 to 14 y) were evaluated for changes in their hematology, coagulation, and serum chemistry profiles. Negative controls (n = 28) did not have implants. Macaques with implants had higher plasma D-dimer and lower antithrombin III concentrations than nonimplanted animals...
February 16, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/28211211/circulating-fibrocyte-mobilization-in-negative-pressure-wound-therapy
#15
Dezhi Chen, Yong Zhao, Zonghuan Li, Kangquan Shou, Xun Zheng, Pengcheng Li, Baiwen Qi, Aixi Yu
Non-healing diabetic wounds are difficult to treat. They also create heavy financial burdens for both patients and society. Negative pressure wound therapy (NPWT) has been adopted to treat intractable wounds and has proved to be effective. However, the mechanisms that underlie the effects of this treatment are not entirely understood. Circulating fibrocytes are unique haematopoietic-derived stem cells that have been reported to play a pivotal role in wound healing. Here, we have investigated the effect of NPWT on fibrocyte mobilization and the role of fibrocyte mobilization in the healing of diabetic wounds during NPWT...
February 17, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28211161/psoriasis-and-psoriasiform-eruptions-in-pediatric-patients-with-inflammatory-bowel-disease-treated-with-anti-tumor-necrosis-factor-alpha-agents
#16
Joshua B Eickstaedt, Luke Killpack, Jeanne Tung, Dawn Davis, Jennifer L Hand, Megha M Tollefson
BACKGROUND: Anti-tumor necrosis factor alpha (TNF-α) agents are used to treat a variety of autoimmune and inflammatory conditions, including psoriasis. Paradoxically, numerous reports have documented new-onset or exacerbation of psoriasis or psoriasiform skin lesions (PSO) in patients treated with these agents for conditions other than PSO-particularly in adults with inflammatory bowel disease (IBD). Not much is known regarding similar cases in children. METHODS: A retrospective chart review was performed on children younger than 19 years of age with IBD seen at the Mayo Clinic between 2003 and 2015 who developed new-onset or recurrent PSO while undergoing anti-TNF-α therapy...
February 17, 2017: Pediatric Dermatology
https://www.readbyqxmd.com/read/28211089/icariin-promotes-mouse-hair-follicle-growth-by-increasing-insulin-like-growth-factor-1-expression-in-dermal-papillary-cells
#17
Y-S Su, Z-X Fan, S-E Xiao, B-J Lin, Y Miao, Z-Q Hu, H Liu
BACKGROUND: Icariin is a major flavonoid isolated from Epimedium spp. leaves (Epimedium Herba), and has multiple pharmacological functions, including anti-angiogenesis, anti-oxidant, anti-inflammatory and immunoprotective effects. AIM: To investigate whether icariin can stimulate growth of hair follicles in mice and the underlying mechanism. METHODS: In vitro, the effect of icariin on hair growth was assessed by using a vibrissae hair follicle (VHF) organ-culture model...
February 16, 2017: Clinical and Experimental Dermatology
https://www.readbyqxmd.com/read/28211039/cutaneous-squamous-cell-carcinoma-an-epidemiological-review
#18
REVIEW
A C Green, C M Olsen
Cutaneous squamous cell carcinoma (SCC) is a common cancer in white populations and its disease burden is often substantially underestimated. SCC occurs more often in men than women and increases dramatically with age; those affected often develop multiple primaries over time, which increases the burden. The main external cause is solar ultraviolet radiation (UVR), with immunosuppression being the other established risk factor, shown by the high SCC rates in organ transplant recipients. Sunbed use and certain genetic disorders and medical conditions are also associated with SCC, while associations with human papillomavirus infection and high bodyweight are not established...
February 16, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28211027/the-inpatient-burden-of-autoimmune-blistering-disease-in-us-children-analysis-of-nationwide-inpatient-sample-data
#19
Ziyou Ren, Derek Y Hsu, Nanette B Silverberg, Jonathan I Silverberg
BACKGROUND: Little is known about the epidemiology of pediatric autoimmune blistering disorders (PAIBD). OBJECTIVE: We sought to determine the inpatient burden and comorbidities of PAIBD. METHODS: We analyzed data from the Nationwide Inpatient Sample from 2002 to 2012, which contained a representative 20% sample of all US hospitalizations. RESULTS: The most common PAIBD with a primary admission was pemphigus (8.0 per million), whereas the most common secondary diagnosis of PAIBD was dermatitis herpetiformis (DH; 9...
February 16, 2017: American Journal of Clinical Dermatology
https://www.readbyqxmd.com/read/28210979/the-skin-as-a-route-of-allergen-exposure-part-ii-allergens-and-role-of-the-microbiome-and-environmental-exposures
#20
REVIEW
George Knaysi, Anna R Smith, Jeffrey M Wilson, Julia A Wisniewski
PURPOSE OF REVIEW: This second part of the article aims to highlight recent contributions in the literature that enhance our understanding of the cutaneous immune response to allergen. RECENT FINDINGS: Several properties of allergens facilitate barrier disruption and cutaneous sensitization. There is a strong epidemiologic relationship between the microbiome, both the gut and skin, and atopic dermatitis (AD). The mechanisms connecting these two entities remain enigmatic; however, recent murine models show that commensal skin bacteria play an active role in supporting skin barrier homeostasis and defense against microbial penetration...
January 2017: Current Allergy and Asthma Reports
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