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https://www.readbyqxmd.com/read/28230648/cultured-human-epidermis-combined-with-meshed-skin-autografts-accelerates-epithelialization-and-granulation-tissue-formation-in-a-rat-model
#1
Michiharu Sakamoto, Naoki Morimoto, Masukazu Inoie, Miki Takahagi, Shuichi Ogino, Chizuru Jinno, Shigehiko Suzuki
INTRODUCTION: As the take rate of cultured epidermal autografts in burn wound treatment is variable, widely expanded meshed auto skin grafts are often used in combination with cultured epidermal autograft to increase the take rate and achieve definitive wound coverage. However, a long time (3-4 weeks) required to prepare a cultured epidermis sheet is a disadvantage. Allogeneic cultured epidermis can be prepared in advance and cryopreserved to be used in combination with auto meshed skin grafts for treating third-degree burns...
February 23, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28229451/honokiol-protects-skin-cells-against-inflammation-collagenolysis-apoptosis-and-senescence-caused-by-cigarette-smoke-damage
#2
Adilson Costa, Gustavo Facchini, Ana Lúcia T A Pinheiro, Michelle S da Silva, Michael Y Bonner, Jack Arbiser, Samara Eberlin
BACKGROUND: Pollution, especially cigarette smoke, is a major cause of skin damage. OBJECTIVES: To assess the effects of the small molecule polyphenol, honokiol, on reversing cigarette smoke-induced damage in vitro to relevant skin cells. METHODS: Keratinocytes (HaCat) cultures were exposed to cigarette smoke and, after 48 hours, IL-1α and IL-8 were measured in cell supernatants. Moreover, TIMP-2 production, apoptosis rate, and senescence β-galactosidase expression were evaluated in primary human foreskin fibroblasts (HFF-1) cultures...
February 22, 2017: International Journal of Dermatology
https://www.readbyqxmd.com/read/28224100/early-infant-male-circumcision-systematic-review-risk-benefit-analysis-and-progress-in-policy
#3
Brian J Morris, Sean E Kennedy, Alex D Wodak, Adrian Mindel, David Golovsky, Leslie Schrieber, Eugenie R Lumbers, David J Handelsman, John B Ziegler
AIM: To determine whether recent evidence-based United States policies on male circumcision (MC) apply to comparable Anglophone countries, Australia and New Zealand. METHODS: Articles in 2005 through 2015 were retrieved from PubMed using the keyword "circumcision" together with 36 relevant subtopics. A further PubMed search was performed for articles published in 2016. Searches of the EMBASE and Cochrane databases did not yield additional citable articles. Articles were assessed for quality and those rated 2+ and above according to the Scottish Intercollegiate Grading System were studied further...
February 8, 2017: World Journal of Clinical Pediatrics
https://www.readbyqxmd.com/read/28217129/ultraviolet-b-inhibits-il-17a-tnf-%C3%AE-stimulated-activation-of-human-dermal-fibroblasts-by-decreasing-the-expression-of-il-17ra-and-il-17rc-on-fibroblasts
#4
Li Yin, YingYing Hu, JiaLi Xu, Jing Guo, Jie Tu, ZhiQiang Yin
BACKGROUND: Psoriasis is a chronic immune-mediated inflammatory disease, and a mixed Th1/Th17 cytokine environment plays a critical role in the pathogenesis of psoriasis. Dermal fibroblasts secrete certain cytokines such as IL-6, IL-8, and CXCL-1, contributing to the hyperproliferative state of the epidermis in psoriatic skin. Ultraviolet B (UVB) phototherapy is one of the most commonly used treatments in psoriasis but the influence of UVB on human dermal fibroblasts (HDFs) in psoriasis treatment is not completely understood...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/28207890/mucosal-stromal-fibroblasts-markedly-enhance-hiv-infection-of-cd4-t-cells
#5
Jason A Neidleman, Joseph C Chen, Nargis Kohgadai, Janis A Müller, Anders Laustsen, Karthiga Thavachelvam, Karen S Jang, Christina M Stürzel, Jennifer J Jones, Christina Ochsenbauer, Avantika Chitre, Ma Somsouk, Maurice M Garcia, James F Smith, Ruth M Greenblatt, Jan Münch, Martin R Jakobsen, Linda C Giudice, Warner C Greene, Nadia R Roan
Understanding early events of HIV transmission within mucosal tissues is vital for developing effective prevention strategies. Here, we report that primary stromal fibroblasts isolated from endometrium, cervix, foreskin, male urethra, and intestines significantly increase HIV infection of CD4+ T cells-by up to 37-fold for R5-tropic HIV and 100-fold for X4-tropic HIV-without themselves becoming infected. Fibroblasts were more efficient than dendritic cells at trans-infection and mediate this response in the absence of the DC-SIGN and Siglec-1 receptors...
February 2017: PLoS Pathogens
https://www.readbyqxmd.com/read/28187781/priming-in-response-to-pro-inflammatory-cytokines-is-a-feature-of-adult-synovial-but-not-dermal-fibroblasts
#6
Thomas Crowley, John D O'Neil, Holly Adams, Andrew M Thomas, Andrew Filer, Christopher D Buckley, Andrew R Clark
BACKGROUND: It has been hypothesized that chronic inflammatory diseases such as rheumatoid arthritis (RA) may be caused by a failure of negative feedback mechanisms. This study sought to examine negative feedback mechanisms in fibroblast-like synoviocytes (FLS), one of the most abundant cell types in the joint. We hypothesized that prior exposure of healthy FLS to an inflammatory stimulus would attenuate their responses to a second inflammatory stimulus, in the same way that negative feedback mechanisms desensitize macrophages to repeated stimulation by lipopolysaccharide...
February 10, 2017: Arthritis Research & Therapy
https://www.readbyqxmd.com/read/28179408/time-resolved-global-and-chromatin-proteomics-during-herpes-simplex-virus-hsv-1-infection
#7
Katarzyna Kulej, Daphne C Avgousti, Simone Sidoli, Christin Herrmann, Ashley N Della Fera, Eui Tae Kim, Benjamin A Garcia, Matthew D Weitzman
Herpes simplex virus (HSV-1) lytic infection results in global changes to the host cell proteome and the proteins associated with host chromatin. We present a system level characterization of proteome dynamics during infection by performing a multi-dimensional analysis during HSV-1 lytic infection of human foreskin fibroblast (HFF) cells. Our study includes identification and quantification of the host and viral proteomes, phosphoproteomes, chromatin bound proteomes and post-translational modifications (PTMs) on cellular histones during infection...
February 8, 2017: Molecular & Cellular Proteomics: MCP
https://www.readbyqxmd.com/read/28174572/functional-characterization-of-rhoptry-kinome-in-the-virulent-toxoplasma-gondii-rh-strain
#8
Jin-Lei Wang, Ting-Ting Li, Hany M Elsheikha, Kai Chen, Wei-Ning Zhu, Dong-Mei Yue, Xing-Quan Zhu, Si-Yang Huang
Toxoplasma gondii is an obligatory intracellular apicomplexan protozoan which can infect any warm-blooded animal and causes severe diseases in immunocompromised individuals or infants infected in utero. The survival and success of this parasite require that it colonizes the host cell, avoids host immune defenses, replicates within an appropriate niche, and exits the infected host cell to spread to neighboring non-infected cells. All of these processes depend on the parasite ability to synthesis and export secreted proteins...
2017: Frontiers in Microbiology
https://www.readbyqxmd.com/read/28161405/neo-yoke-repair-for-severe-hypospadias-a-simple-modification-for-better-outcome
#9
Hamed M Seleim, Hani Morsi, Mohamed M Elbarbary
BACKGROUND: Although staged repair for reconstructing severe hypospadias is more popular, various one-stage repairs have been attempted. Koyanagi repair (parameatal-based and fully extended circumferential foreskin flap urethroplasty) has enabled correction of severe hypospadias in one stage. However, its un-acceptably high incidence of complications has initiated a series of technical modifications, including the "yoke" repair. OBJECTIVES: To retrospectively analyze the outcome of a proposed modification of the originally described yoke repair, for patients with severe hypospadias...
January 14, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28154883/-urinary-tract-infections-in-children
#10
E Lellig, M Apfelbeck, J Straub, A Karl, S Tritschler, C G Stief, M Riccabona
Urinary tract infections (UTI) are the most common bacterial infections in children. The symptoms are not very specific and range from abdominal pain, poor feeding to nocturnal urinary incontinence. The technique of collecting urine plays an important role for securing the diagnosis. The best way to obtain urine in non-toilet-trained children is catheterization or suprapubic bladder aspiration. In toilet-trained children midstream urine is an acceptable alternative after cleaning the foreskin or labia. In the case of an infection a prompt empirical antibiotic therapy is necessary to reduce the risk of parenchymal scarring of the kidneys...
February 2017: Der Urologe. Ausg. A
https://www.readbyqxmd.com/read/28137808/two-novel-calcium-dependent-kinase-1-inhibitors-interfere-with-vertical-transmission-in-mice-infected-with-neospora-caninum-tachyzoites
#11
Joachim Müller, Adriana Aguado-Martínez, Vreni Balmer, Dustin J Maly, Erkang Fan, Luis-Miguel Ortega-Mora, Kayode K Ojo, Wesley C Van Voorhis, Andrew Hemphill
We present the effects of two novel bumped kinase inhibitors, BKI-1517 and BKI-1553 against Neospora caninum tachyzoites in vitro and in experimentally infected pregnant mice. The compounds inhibited tachyzoite proliferation of a transgenic beta-galactosidase reporter strain cultured in human foreskin fibroblasts with IC50 values of 0.05 ± 0.03 and 0.18 ± 0.03 μM, respectively. As assessed by Alamar blue assay, fibroblast IC50 values were above 20 μM, however, morphological changes occurred in cultures treated with more than 5 μM BKI-1517 after prolonged (>6 days) exposure...
January 30, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28137670/effects-of-thai-piperaceae-plant-extracts-on-neospora-caninum-infection
#12
Arpron Leesombun, Sookruetai Boonmasawai, Yoshifumi Nishikawa
Neosporosis has a worldwide distribution and causes economic losses in farming, particularly by increasing the risk of abortion in cattle. This study investigated the effects of Thai piperaceae (Piper betle, P. nigrum, and P. sarmentosum) extracts on Neospora caninum infections in vitro and in vivo. In an in vitro parasite growth assay based on the green fluorescent protein (GFP) signal, P. betle was the most effective extract at inhibiting parasite growth in human foreskin fibroblast cells (IC50 of GFP-expressing N...
January 27, 2017: Parasitology International
https://www.readbyqxmd.com/read/28129029/chromosome-conformation-and-gene-expression-patterns-differ-profoundly-in-human-fibroblasts-grown-in-spheroids-versus-monolayers
#13
Haiming Chen, Laura Seaman, Sijia Liu, Thomas Ried, Indika Rajapakse
Human cells derived for in vitro cultures are conventionally grown as adherent monolayers (2 D) which do not resemble natural three dimensional (3 D) tissue architecture. We examined genome structure with chromosome conformation capture (Hi-C) and gene expression with RNA-seq in fibroblasts derived from human foreskin grown in 2 D and 3 D conditions. Our combined analysis of Hi-C and RNA-seq data shows a large number of differentially expressed genes between 2 D and 3 D cells, and these changes are localized in genomic regions that displayed structural changes...
January 27, 2017: Nucleus
https://www.readbyqxmd.com/read/28128711/foreskin-as-a-source-of-immunotherapeutic-mesenchymal-stromal-cells
#14
Mehdi Najar, Laurence Lagneaux
Mesenchymal stromal cells (MSCs) have well-characterized properties and thus represent an attractive cell population for use in several therapeutic applications. Due to the limitations and inconveniences associated with classical sources of MSCs, the identification and characterization of alternative sources are required for safe and efficient cell therapy. The skin tissue is currently referred to as a reservoir of cells with therapeutically relevant functions. Historically considered biological waste, foreskin (FSK) is increasingly used to provide immunotherapeutic MSCs for medicinal products...
January 2017: Immunotherapy
https://www.readbyqxmd.com/read/28110038/enhancement-of-magnetofection-efficiency-using-chitosan-coated-superparamagnetic-iron-oxide-nanoparticles-and-calf-thymus-dna
#15
Z Sohrabijam, M Saeidifar, A Zamanian
Superparamagnetic iron oxide nanoparticles (MNPs) were prepared and coated with chitosan (CS). The chitosan-magnetic iron oxide nanoparticles (CS-MNPs) were characterized using Fourier transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), vibrating sample magnetometry (VSM), and the morphology of the particles was studied by transmission electron microscopy (TEM). Our findings show that the magnetic particles were monodisperse (10nm mean diameter) and exhibited superparamagnetic behavior. The interaction between the particles and calf-thymus DNA (DNA) in physiological buffer was studied with UV-vis, fluorescence and circular dichroism spectroscopy and zeta potential...
January 17, 2017: Colloids and Surfaces. B, Biointerfaces
https://www.readbyqxmd.com/read/28109001/polygonum-multiflorum-radix-extract-protects-human-foreskin-melanocytes-from-oxidative-stress-in-vitro-and-potentiates-hair-follicle-pigmentation-ex-vivo
#16
Peggy Sextius, Richard Betts, Ishak Benkhalifa, Stéphane Commo, Joan Eilstein, Marco Massironi, Ping Wang, Jean-Francois Michelet, Jie Qiu, Xuezhu Tan, Severine Jeulin
OBJECTIVE: To examine the ability of an extract from traditional Chinese medicine, Polygonum multiflorum Radix, to protect melanocyte viability from oxidative stress, a key mechanism in the initiation and progression of hair greying. METHODS: To assess the antioxidant capacity of Polygonum multiflorum Radix extract, primary human foreskin melanocytes were treated with a commercially available Polygonum multiflorum Radix extract added to culture medium and exposed to hydrogen peroxide (H2 O2 ), using intracellular reactive oxygen species concentrations and glutathione/protein ratios as endpoints...
January 20, 2017: International Journal of Cosmetic Science
https://www.readbyqxmd.com/read/28107750/effect-of-clinically-approved-hdac-inhibitors-on-plasmodium-leishmania-and-schistosoma-parasite-growth
#17
Ming Jang Chua, Megan S J Arnold, Weijun Xu, Julien Lancelot, Suzanne Lamotte, Gerald F Späth, Eric Prina, Raymond J Pierce, David P Fairlie, Tina S Skinner-Adams, Katherine T Andrews
Malaria, schistosomiasis and leishmaniases are among the most prevalent tropical parasitic diseases and each requires new innovative treatments. Targeting essential parasite pathways, such as those that regulate gene expression and cell cycle progression, is a key strategy for discovering new drug leads. In this study, four clinically approved anti-cancer drugs (Vorinostat, Belinostat, Panobinostat and Romidepsin) that target histone/lysine deacetylase enzymes were examined for in vitro activity against Plasmodium knowlesi, Schistosoma mansoni, Leishmania amazonensis and L...
December 23, 2016: International Journal for Parasitology, Drugs and Drug Resistance
https://www.readbyqxmd.com/read/28106913/efficacy-of-50%C3%A2-hz-electromagnetic-fields-on-human-epidermal-stem-cell-transplantation-seeded-in-collagen-sponge-scaffolds-for-wound-healing-in-a-murine-model
#18
Wen-Fang Bai, Wei-Cheng Xu, Hong-Xiang Zhu, Hong Huang, Bo Wu, Ming-Sheng Zhang
To explore the possible efficacy of electromagnetic fields (EMF) for skin tissue engineering, effects of EMF exposure on epidermal stem cells (ESC) seeded in collagen sponge scaffolds for wound healing in a murine model were investigated. The wound models of a full-thickness defect established with 36 7 ∼ 8-week-old nude mice were randomly divided into three groups: a control group, an ESC-only group, and an ESC with EMF exposure group (frequency of 50 Hz, magnetic induction of 5 mT, 60 min per day for 20 days)...
January 20, 2017: Bioelectromagnetics
https://www.readbyqxmd.com/read/28106541/cell-membrane-and-intracellular-expression-of-toll-like-receptor-9-tlr9-in-colorectal-cancer-and-breast-cancer-cell-lines
#19
Shadab Shahriari, Somayeh Rezaeifard, Hamid Reza Moghimi, Mohammad Reza Khorramizadeh, Zahra Faghih
BACKGROUND: Toll-like receptor 9 (TLR9) is a DNA receptor of innate immune system which plays a pivotal role in inflammatory response. Recent evidence reveals over-expression and functionality of TLR9 in a wide variety of cancer cells and its contribution to tumor cell proliferation and survival. OBJECTIVE: In this study, we assessed the aberrant cell surface expression of TLR9 in cancer using cell-lines model. METHODS: Three breast cancer cell-lines (MDA-MB-231, MCF7 and SKBR3) and five colorectal adenocarcinoma cell-lines (HT29, HT29/219, SW480, SW48 and SW1116) in addition to one primary foreskin isolated fibroblast cell were analyzed for cell surface and intracellular expression of TLR9 by flow cytometry method...
January 13, 2017: Cancer Biomarkers: Section A of Disease Markers
https://www.readbyqxmd.com/read/28103575/piwil2-transfected-human-fibroblasts-are-cancer-stem-cell-like-and-genetically-unstable
#20
Deying Zhang, Xin Wu, Xing Liu, Chunhong Cai, Guangping Zeng, Jan Rohozinski, Yuanyuan Zhang, Guanghui Wei, Dawei He
Uncontrolled cell proliferation and inhibition of apoptosis are considered to be vital for cancer initiation, maintenance, infiltration, metastasis and recurrence after anti-cancer therapy. Here we report the generation of a novel cell line by reprogramming child foreskin fibroblast with the full length apoptosis inhibitor gene PIWIL2. The fibroblasts transfected with PIWIL2 expressed the stem cell markers OCT-4, NANOG, SOX-2, KLF-4 and C-MYC; endoderm marker AFP and GATA6; mesoderm markers ACTA2 and BRACHYURY; and ectoderm markers NESTIN and TUBB3...
January 17, 2017: Oncotarget
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