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Journal of Investigative Dermatology

Nicholas L Mascarenhas, Zhenping Wang, Yu-Ling Chang, Anna Di Nardo
No abstract text is available yet for this article.
November 28, 2016: Journal of Investigative Dermatology
Katsuya Tanaka, Sang Eun Kim, Hiroki Yano, Gaku Matsumoto, Ryoma Ohuchida, Yuhoko Ishikura, Masatake Araki, Kimi Araki, Seongjoon Park, Toshimitsu Komatsu, Hiroko Hayashi, Kazuya Ikematsu, Katsumi Tanaka, Akiyoshi Hirano, Paul Martin, Isao Shimokawa, Ryoichi Mori
MicroRNAs (miRNAs) are small noncoding RNAs that regulate protein translation by binding to complementary target mRNAs. We previously identified two mature members of the miR-142 family, miR-142-5p and miR-142-3p, as inflammation-related miRNAs with potential roles in wound healing. Here, we demonstrated that these two miRNAs are prominently expressed in wound-infiltrated neutrophils and macrophages and play central roles in wound healing. We generated miR-142(-/-) mice using the exchangeable gene-trap method and showed that healing of Staphylococcus aureus-infected skin wounds was significantly delayed in miR-142(-/-) mice compared with that in wild-type mice...
November 25, 2016: Journal of Investigative Dermatology
Noriko Umegaki-Arao, Takashi Sasaki, Harumi Fujita, Satomi Aoki, Kaori Kameyama, Masayuki Amagai, Mariko Seishima, Akiharu Kubo
No abstract text is available yet for this article.
November 24, 2016: Journal of Investigative Dermatology
Yang Yang, Hexiao Wang, Xinrui Zhang, Wei Huo, Ruiqun Qi, Yali Gao, Gaofeng Zhang, Bing Song, Hongduo Chen, Xinghua Gao
Apolipoprotein B mRNA-editing catalytic polypeptide (APOBEC) 3 proteins have been identified as potent viral DNA mutators and have broad antiviral activity. In this study, we demonstrated APOBEC3A (A3A) and A3G expression levels were significantly upregulated in HPV infected cell lines and tissues. Heat treatment resulted in elevated expression of A3A and A3G in a temperature-dependent manner in HPV infected cells. Correspondingly, 44 ºC heating treated HPV infected cells showed accumulated G-to-A or C-to-T mutation in HPVE2 gene...
November 24, 2016: Journal of Investigative Dermatology
Rachel D Melamed, Iraz T Aydin, Geena Susan Rajan, Robert Phelps, David N Silvers, Kevin J Emmett, Georg Brunner, Raul Rabadan, Julide Tok Celebi
A well-defined risk factor and precursor for cutaneous melanoma is the dysplastic nevus. These benign tumors represent clonal hyperproliferation of melanocytes that are in a senescent-like state, but with occasional malignant transformation events. To portray the mutational repertoire of dysplastic nevi in patients with the dysplastic nevus syndrome, and to determine the discriminatory profiles of melanocytic nevi (including dysplastic nevi) from melanoma, we sequenced exomes of melanocytic nevi including dysplastic nevi (n = 19), followed by a targeted gene panel (785 genes) characterization of melanocytic nevi (n = 46) and primary melanomas (n = 42)...
November 24, 2016: Journal of Investigative Dermatology
Rishov Goswami, Jonathan Cohen, Shweta Sharma, David X Zhang, Robert Lafyatis, Jag Bhawan, Shaik O Rahaman
No abstract text is available yet for this article.
November 23, 2016: Journal of Investigative Dermatology
Brett King, Alfred Ian Lee, Jaehyuk Choi
No abstract text is available yet for this article.
November 22, 2016: Journal of Investigative Dermatology
Agatha Schwarz, Anika Bruhs, Thomas Schwarz
There is evidence that gut commensal microbes affect the mucosal immune system via expansion of regulatory T cells (Treg) in the colon. This is mediated via short-chain fatty acids (SCFA), bacterial metabolites generated during fiber fermentation, which include butyrate, propionate and acetate. We postulated that SCFA produced by commensal skin bacteria may also activate resident skin Treg, the activity of which is diminished in certain inflammatory dermatoses. Sodium butyrate (SB) either injected s.c. or applied topically onto the ears of hapten-sensitized mice significantly reduced the contact hypersensitivity reaction...
November 22, 2016: Journal of Investigative Dermatology
Patrick L J M Zeeuwen, Jos Boekhorst, Thomas H A Ederveen, Michiel Kleerebezem, Joost Schalkwijk, Sacha A F T van Hijum, Harro M Timmerman
No abstract text is available yet for this article.
November 22, 2016: Journal of Investigative Dermatology
Hassan Vahidnezhad, Leila Youssefian, Amir Hossein Saeidian, Sirous Zeinali, Parvin Mansouri, Soheila Sotoudeh, Mohammadreza Barzegar, Javad Mohammadi-Asl, Razieh Karamzadeh, Maryam Abiri, Kevin McCormick, Paolo Fortina, Jouni Uitto
Autosomal recessive congenital ichthyosis (ARCI) is a heterogeneous group of disorders associated with mutations in at least nine distinct genes. To ascertain the molecular basis of ichthyosis patients in Iran, a country of ∼80 million people with high prevalence of customary consanguineous marriages, we have developed a gene targeted next generation sequencing array consisting of 38 genes reported in association with ichthyosis phenotypes. In a subset of nine extended consanguineous families we found homozygous missense mutations in the PNPLA1 gene, six of them being distinct and previously unpublished...
November 21, 2016: Journal of Investigative Dermatology
Chiara Giacomassi, Norzawani Buang, Guang Sheng Ling, Greg Crawford, H Terence Cook, Diane Scott, Francesco Dazzi, Jessica Strid, Marina Botto
No abstract text is available yet for this article.
November 19, 2016: Journal of Investigative Dermatology
Anshuman Mishra, Sheikh Nizammuddin, Chandana Basu Mallick, Sakshi Singh, Satya Prakash, Niyamat Ali Siddiqui, Niraj Rai, S Justin Carlus, D V S Sudhakar, Vishnu P Tripathi, Märt Möls, Xana Kim-Howard, Hemlata Dewangan, Abhishek Mishra, Alla G Reddy, Biswajit Roy, Krishna Pandey, Gyaneshwer Chaubey, Pradeep Das, Swapan K Nath, Lalji Singh, Kumarasamy Thangaraj
Our understanding of genetics of skin pigmentation has been largely skewed towards populations of European ancestry imparting much less attention to South Asian populations, who behold huge pigmentation diversity. Here, we investigate the skin pigmentation variation in a cohort of 1167 individuals in Middle Gangetic Plain of Indian subcontinent. Our data confirms the association of rs1426654 with skin pigmentation among South Asians, consistent with previous studies and also reveals association for rs2470102 SNP...
November 17, 2016: Journal of Investigative Dermatology
Joshua Vorstenbosch, Christopher M Nguyen, Shufeng Zhou, You Jung Seo, Aya Siblini, Kenneth W Finnson, Albane A Bizet, Simon D Tran, Anie Philip
Transforming growth factor-beta (TGF-β) is a multifunctional growth factor involved in many physiological processes including wound healing and inflammation. Excessive TGF-β signaling in the skin has been implicated in fibrotic skin disorders such as keloids and scleroderma. We have previously identified CD109 as a TGF- β co-receptor and inhibitor of TGF-ß signaling, and have shown that transgenic mice overexpressing CD109 in the epidermis display decreased scarring. In certain cell types, in addition to the canonical type I receptor, ALK5 which activates Smad2/3, TGF-β can signal through another type I receptor ALK1 which activates Smad1/5...
November 17, 2016: Journal of Investigative Dermatology
Anil Sebastian, Susan W Volk, Poonam Halai, James Colthurst, Ralf Paus, Ardeshir Bayat
Electrical stimulation (ES) is known to promote cutaneous healing, however its ability to regulate reinnervation remains unclear. Firstly, we show that ES treatment of human acute cutaneous wounds (n=40) increased reinnervation. Next, to define neurophysiological mechanisms through which ES impacts repair, microarray of wound biopsies was performed on days 3, 7, 10 and 14 post-wounding. This identified neural differentiation biomarkers Class III β-tubulin (TUBB3; melanocyte development and neuronal marker) and its upstream molecule Factor Induced Gene 4 (FIG4; phosphatidylinositol (3,5)-bisphosphate 5-phosphatase) as significantly up-regulated post-ES treatment...
November 14, 2016: Journal of Investigative Dermatology
TaeWon Kim, Thomas Havighurst, KyungMann Kim, Scott J Hebbring, Zhan Ye, Juliet Aylward, Sunduz Keles, Yaohui G Xu, Vladimir S Spiegelman
No abstract text is available yet for this article.
November 14, 2016: Journal of Investigative Dermatology
Christina L Grek, Jade Montgomery, Meenakshi Sharma, A Ravi, J S Rajkumar, Kurtis E Moyer, Robert G Gourdie, Gautam S Ghatnekar
BACKGROUND: The transmembrane protein, connexin43 (Cx43) has key roles in fibrogenic processes including inflammatory signaling and extracellular matrix composition. aCT1 is a Cx43 mimetic peptide that in preclinical studies accelerated wound closure, decreased inflammation and granulation tissue area and normalized mechanical properties following cutaneous injury. PURPOSE: We evaluated the efficacy and safety of aCT1 in the reduction of scar formation in human incisional wounds...
November 14, 2016: Journal of Investigative Dermatology
Kazuyuki Yo, Thomas M Rünger
No abstract text is available yet for this article.
November 12, 2016: Journal of Investigative Dermatology
Thomas Yang Sun, Ann M Haberman, Valentina Greco
Conventional, static analyses have historically been the bedrock and tool of choice for the study of skin cancers. Over the past several years, in vivo imaging of tumors using multiphoton microscopy has emerged as a powerful preclinical tool for revealing detailed cellular behaviors from the earliest moments of tumor development to the final steps of metastasis. Multiphoton microscopy allows for deep tissue penetration with relatively minor phototoxicity, rendering it an effective tool for the long-term observation of tumor evolution...
November 12, 2016: Journal of Investigative Dermatology
Eun Young Seo, Seon-Pil Jin, Yeon-Kyung Kim, Hanon Lee, Sang-Bum Han, Dong Hun Lee, Jin Ho Chung
No abstract text is available yet for this article.
November 10, 2016: Journal of Investigative Dermatology
Jingling Zhao, Aimei Zhong, Emily E Friedrich, Shengxian Jia, Ping Xie, Robert D Galiano, Thomas A Mustoe, Seok Jong Hong
Disruption of the barrier function of skin increases transepidermal water loss (TEWL) and upregulates inflammatory pathways in the epidermis. Consequently, sustained expression of proinflammatory cytokines from the epidermis is associated with dermal scarring. We found increased expression of S100A12 in the epidermis of human hypertrophic and keloid scar. Exposing a stratified keratinocyte culture (SKC) to a reduced hydration environment increased the expression and secretion of S100A12 by nearly 70%, which in turn activated dermal fibroblasts in vitro...
November 10, 2016: Journal of Investigative Dermatology
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