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https://www.readbyqxmd.com/read/28446013/the-in-vivo-effect-of-ytterbium-doped-fiber-laser-on-rat-buccal-mucosa-as-a-simulation-of-its-effect-on-the-urinary-tract-a-preclinical-histopathological-evaluation
#1
Songzhe Piao, Yue Wang, Young Ju Lee, Seungsoo Hong, Yoonchan Jeong, Seung-June Oh
PURPOSE: The aim of this study was to perform a histological analysis of the effect of a ytterbium-doped fiber (YDF) laser on oral buccal mucosa tissue in vivo to simulate its effect on the mucosa of the lower urinary tract. METHODS: A total of 90 8-week-old Sprague-Dawley rats were anesthetized with urethrane (1.2 g/kg intraperitoneally). A prespecified inner buccal mucosal site was irradiated with a YDF master-oscillator power amplifier (MOPA) system for 60 seconds, with output power settings of 0...
April 2017: International Neurourology Journal
https://www.readbyqxmd.com/read/28445842/%C3%AE-eta-eudesmol-reduces-stem-cell-factor-induced-mast-cell-migration
#2
Sun-Young Nam, Hee-Yun Kim, Hyung-Min Kim, Hyun-Ja Jeong
Previously, we showed the inhibitory effects of β-eudesmol on mast cell-mediated allergic inflammatory responses. Stem cell factor (SCF) participates in allergic reactions through the differentiation and migration of mast cells. However, the effects of β-eudesmol on SCF-mediated allergic reactions are poorly understood. Herein, we showed that a treatment of rat peritoneal mast cells (RPMCs) with β-eudesmol markedly suppressed SCF-induced mast cell migration and morphological alterations in a concentration-dependent manner...
April 23, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28445659/adalimumab-plus-methotrexate-for-uveitis-in-juvenile-idiopathic-arthritis
#3
Athimalaipet V Ramanan, Andrew D Dick, Ashley P Jones, Andrew McKay, Paula R Williamson, Sandrine Compeyrot-Lacassagne, Ben Hardwick, Helen Hickey, Dyfrig Hughes, Patricia Woo, Diana Benton, Clive Edelsten, Michael W Beresford
Background Adalimumab, a fully human anti-tumor necrosis factor α monoclonal antibody, is effective in the treatment of juvenile idiopathic arthritis (JIA). We tested the efficacy of adalimumab in the treatment of JIA-associated uveitis. Methods In this multicenter, double-blind, randomized, placebo-controlled trial, we assessed the efficacy and safety of adalimumab in children and adolescents 2 years of age or older who had active JIA-associated uveitis. Patients who were taking a stable dose of methotrexate were randomly assigned in a 2:1 ratio to receive either adalimumab (at a dose of 20 mg or 40 mg, according to body weight) or placebo, administered subcutaneously every 2 weeks...
April 27, 2017: New England Journal of Medicine
https://www.readbyqxmd.com/read/28445542/no-touch-radiofrequency-ablation-using-multiple-electrodes-an-in-vivo-comparison-study-of-switching-monopolar-versus-switching-bipolar-modes-in-porcine-livers
#4
Won Chang, Jeong Min Lee, Jeong Hee Yoon, Dong Ho Lee, Sang Min Lee, Kyoung Bun Lee, Bo Ram Kim, Tae-Hyung Kim, Seunghyun Lee, Joon Koo Han
OBJECTIVE: To evaluate the in vivo technical feasibility, efficiency, and safety of switching bipolar (SB) and switching monopolar (SM) radiofrequency ablation (RFA) as a no-touch ablation technique in the porcine liver. MATERIALS AND METHODS: The animal care and use committee approved this animal study and 16 pigs were used in two independent experiments. In the first experiment, RFA was performed on 2-cm tumor mimickers in the liver using a no-touch technique in the SM mode (2 groups, SM1: 10 minutes, n = 10; SM2: 15 minutes, n = 10) and SB-mode (1 group, SB: 10 minutes, n = 10)...
2017: PloS One
https://www.readbyqxmd.com/read/28445531/antagomir-451-inhibits-oxygen-glucose-deprivation-ogd-induced-huvec-necrosis-via-activating-ampk-signaling
#5
Xi Yang, Xiao-Qing He, Guo-Dong Li, Yong-Qing Xu
Oxygen glucose deprivation (OGD) application in cultured human umbilical vein endothelial cells (HUVECs) mimics ischemic injuries. AntagomiR-451, the miroRNA-451 ("miR-451") inhibitor, could activate pro-survival AMP-activated protein kinase (AMPK) signaling. In the current study, we showed that forced-expression of antagomiR-451 depleted miRNA-451 and significantly attenuated OGD-induced necrosis of HUVECs. Activation of AMPK was required for antagomiR-451-mediated pro-survival actions. AMPK inhibition, by AMPKα shRNA or dominant negative mutation, almost completely abolishedantagomiR-451-mediated HUVEC protection again OGD...
2017: PloS One
https://www.readbyqxmd.com/read/28445461/tumour-ischaemia-by-interferon-%C3%AE-resembles-physiological-blood-vessel-regression
#6
Thomas Kammertoens, Christian Friese, Ainhoa Arina, Christian Idel, Dana Briesemeister, Michael Rothe, Andranik Ivanov, Anna Szymborska, Giannino Patone, Severine Kunz, Daniel Sommermeyer, Boris Engels, Matthias Leisegang, Ana Textor, Hans Joerg Fehling, Marcus Fruttiger, Michael Lohoff, Andreas Herrmann, Hua Yu, Ralph Weichselbaum, Wolfgang Uckert, Norbert Hübner, Holger Gerhardt, Dieter Beule, Hans Schreiber, Thomas Blankenstein
The relative contribution of the effector molecules produced by T cells to tumour rejection is unclear, but interferon-γ (IFNγ) is critical in most of the analysed models. Although IFNγ can impede tumour growth by acting directly on cancer cells, it must also act on the tumour stroma for effective rejection of large, established tumours. However, which stroma cells respond to IFNγ and by which mechanism IFNγ contributes to tumour rejection through stromal targeting have remained unknown. Here we use a model of IFNγ induction and an IFNγ-GFP fusion protein in large, vascularized tumours growing in mice that express the IFNγ receptor exclusively in defined cell types...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445457/the-mitochondrial-na-ca-2-exchanger-is-essential-for-ca-2-homeostasis-and-viability
#7
Timothy S Luongo, Jonathan P Lambert, Polina Gross, Mary Nwokedi, Alyssa A Lombardi, Santhanam Shanmughapriya, April C Carpenter, Devin Kolmetzky, Erhe Gao, Jop H van Berlo, Emily J Tsai, Jeffery D Molkentin, Xiongwen Chen, Muniswamy Madesh, Steven R Houser, John W Elrod
Mitochondrial calcium (mCa(2+)) has a central role in both metabolic regulation and cell death signalling, however its role in homeostatic function and disease is controversial. Slc8b1 encodes the mitochondrial Na(+)/Ca(2+) exchanger (NCLX), which is proposed to be the primary mechanism for mCa(2+) extrusion in excitable cells. Here we show that tamoxifen-induced deletion of Slc8b1 in adult mouse hearts causes sudden death, with less than 13% of affected mice surviving after 14 days. Lethality correlated with severe myocardial dysfunction and fulminant heart failure...
April 26, 2017: Nature
https://www.readbyqxmd.com/read/28445445/cardioprotective-effects-of-malvidin-against-isoproterenol-induced-myocardial-infarction-in-rats-a-mechanistic-study
#8
Hui Wei, Hui Li, Shu-Ping Wan, Qiu-Tang Zeng, Long-Xian Cheng, Li-Li Jiang, Yu-Dong Peng
BACKGROUND Malvidin (alvidin-3-glucoside) is a polyphenol that belongs to the class of natural anthocyanin, which is abundantly found in red wines, colored fruits, and the skin of red grapes. Therefore, the current investigation was intended to evaluate the effect of malvidin against myocardial infarction induced by isoproterenol in the rats. MATERIAL AND METHODS The cardioprotective effects was assessed by determining the effect of malvidin on the activities of endogenous antioxidants - catalase (CAT), superoxide dismutase (SOD), and glutathione peroxidase (GSH) - and on the levels of lipid peroxidation and serum marker enzymes...
April 26, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28445378/the-impact-of-body-mass-index-on-abdominal-wall-reconstruction-outcomes-a-comparative-study
#9
Salvatore A Giordano, Patrick B Garvey, Donald P Baumann, Jun Liu, Charles E Butler
BACKGROUND: Obesity and higher body mass index may be associated with higher rates of wound healing complications and hernia recurrence rates following complex abdominal wall reconstruction. The authors hypothesized that higher body mass indexes result in higher rates of postoperative wound healing complications but similar rates of hernia recurrence in abdominal wall reconstruction patients. METHODS: The authors included 511 consecutive patients who underwent abdominal wall reconstruction with underlay mesh...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445367/adipose-tissue-drives-response-to-ischemia-reperfusion-injury-in-a-murine-pressure-sore-model
#10
Madeleine J Gust, Seok Jong Hong, Robert C Fang, Steven T Lanier, Donald W Buck, Jennifer M Nuñez, Shengxian Jia, Eugene D Park, Robert D Galiano, Thomas A Mustoe
BACKGROUND: Ischemia-reperfusion injury contributes significantly to the pathogenesis of chronic wounds such as pressure sores and diabetic foot ulcers. The authors' laboratory has previously developed a cyclical murine ischemia-reperfusion injury model. The authors here use this model to determine factors underlying tissue response to ischemia-reperfusion injury. METHODS: C57BL/6 mice were subjected to cycles of ischemia-reperfusion that varied in number (one to four cycles) and duration of ischemia (1 to 2 hours)...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445365/improvement-of-flap-necrosis-in-a-rat-random-skin-flap-model-by-in-vivo-electroporation-mediated-hgf-gene-transfer
#11
S Morteza Seyed Jafari, Maziar Shafighi, Helmut Beltraminelli, Thomas Geiser, Robert E Hunger, Amiq Gazdhar
BACKGROUND: Despite great understanding of underlying mechanisms for flap necrosis and advances in surgical techniques, flap necrosis remains a critical issue. In the present study, the authors investigated the efficacy of electroporation-mediated hepatocyte growth factor (HGF) gene delivery to random dorsal skin flaps (McFarlane) to accelerate wound healing and reduce flap necrosis. METHODS: Fifteen male Wistar rats (290 to 320 g) were divided randomly into three groups...
May 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28445307/alteration-of-serum-high-mobility-group-protein-1-hmgb1-levels-in-children-with-enterovirus-71-induced-hand-foot-and-mouth-disease
#12
Weikun Zheng, Haifan Shi, Yiping Chen, Zhiwei Xu, Jie Chen, Longteng Jin
Hand, foot, and mouth disease (HFMD) is a common pediatric disease caused by enterovirus infection. It typically presents as a fever along with flat, discolored spots and bumps on the hands, feet, and mouth. Compared with other viruses, enterovirus 71 (EV71)-induced HFMD is more prone to cause severe complications in children, such as brainstem encephalitis, cardiopulmonary disorders, and even death. More in-depth studies are still necessary to understand the characteristics of EV71-induced HFMD, although some related research has been reported so far...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445286/remote-ischemic-preconditioning-improves-the-cognitive-function-of-elderly-patients-following-colon-surgery-a-randomized-clinical-trial
#13
Zhenqiu He, Nan Xu, Sihua Qi
BACKGROUND: Cognitive function impairment is one of the most common complications in elderly patients after surgery, and an ideal nonpharmacological therapy has not yet been identified. Thus, we hypothesized that remote ischemic preconditioning could improve cognitive functions in elderly patients after surgery and investigated the mechanism underlying this effect. METHODS: Ninety patients classified as American Society of Anaesthesiologists (ASA) physical status of 2 or 3 and aged 65 to 75 years who were scheduled for elective colon surgery under general anesthesia were randomly allocated to either a remote ischemic preconditioning group (Group R, n = 45) or a control group (Group C, n = 45)...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445273/staged-management-of-open-lisfranc-injury-experience-from-14-patients
#14
Wenqi Gu, Zhongmin Shi
There are still controversies on the management and outcome of open Lisfranc injury in available studies. This study evaluates the staged management of Lisfranc injury and its complications.Patients who received a staged strategy for open Lisfranc injury were reviewed.One patient with degloving injury suffered from partial skin and hallux necrosis which was treated by debridement, hallux amputation, definitive internal fixation, and local flap transfer on the 12th day after first stage management. A definitive internal fixation and simultaneous skin graft or flap coverage were performed in another 3 patients with soft tissue defects...
April 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28445244/outcomes-after-primary-infliximab-treatment-failure-in-inflammatory-bowel-disease
#15
Sine Buhl, Casper Steenholdt, Maria Rasmussen, Märta K Borghede, Jørn Brynskov, Ole Ø Thomsen, Mark A Ainsworth
BACKGROUND: Primary infliximab treatment failure is common in patients with inflammatory bowel disease and represents a challenge to clinicians. Treatment options are limited. This study assessed the prognosis, defined as surgery-free survival, in patients with primary infliximab treatment failure as compared to patients without primary failure (initial responders). Furthermore, this study assessed the specter of medical therapies used after primary infliximab treatment failure along with treatment outcomes...
April 25, 2017: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/28445239/aldosterone-and-vascular-mineralocorticoid-receptors-in-murine-endotoxic-and-human-septic-shock
#16
Fouad Fadel, Gwennan André-Grégoire, Basile Gravez, Brigitte Bauvois, Sandrine Bouchet, Catalina Sierra-Ramos, Andrea Polito, Arnaud Mansart, Diego Alvarez de la Rosa, Djillali Annane, Frédéric Jaisser
OBJECTIVES: Vascular mineralocorticoid receptors play a role in vascular tone and blood pressure regulation, might participate in the pathophysiology of circulatory failure during sepsis, and represent a potential therapeutic target in this disease. We aimed to study the effects of mineralocorticoids and the involvement of vascular mineralocorticoid receptors in murine endotoxic and human septic shock. DESIGN: Experimental study. SETTING: Translational investigation including animal research and in vitro experiments using human vascular cells and plasma from septic patients...
April 25, 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28445093/dynamics-of-cytokine-like-activity-in-the-hyperplasic-ovary-of-ex-fissiparous-planarians
#17
Abdel Halim Harrath, Abdelhabib Semlali, Lamjed Mansour, Waleed Aldahmash, Suliman Y Al Omar, Mohamed S Al Anazi, Jens R Nyengaard, Saleh Alwasel
The origin of infertility in the hyperplasic ovary of ex-fissiparous planarians remains poorly understood. In a previous study we demonstrated that a complex process of early autophagy, followed by apoptotic processes, occurs in the hyperplasic ovary of the freshwater planarian Dugesia arabica. The present study aimed to investigate whether the mRNA expression levels of selected mRNA-like genes are altered in the hyperplasic ovary of the ex-fissiparous freshwater planarian D. arabica compared to the normal ovary...
February 2017: Biological Bulletin
https://www.readbyqxmd.com/read/28444900/lactosylceramide-induced-phosphorylation-signaling-to-group-iva-phospholipase-a2-via-reactive-oxygen-species-in-tumor-necrosis-factor-%C3%AE-treated-cells
#18
Hiroyuki Nakamura, Yuta Moriyama, Kazuaki Watanabe, Satoshi Tomizawa, Risa Yamazaki, Hiromasa Takahashi, Toshihiko Murayama
The activity of α-type cytosolic phospholipase A2 (cPLA2 α, group IVA PLA2 ), which releases arachidonic acid (AA), is mainly regulated by the Ca(2+) -induced intracellular translocation/attachment of the enzyme to substrate membranes and its phosphorylation. We previously reported that tumor necrosis factor-α (TNFα) stimulated the formation of lactosylceramide (LacCer) in L929 fibroblast cells, and this lipid directly bound with and activated cPLA2 α [Nakamura et al., J. Biol. Chem. 2013;288:23264-23272]...
April 26, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28444889/invasive-fungal-infections-in-paediatric-patients-treated-with-macromolecular-immunomodulators-other-than-tumour-necrosis-alpha-inhibitors
#19
REVIEW
Ioannis Kyriakidis, Athanasios Tragiannidis, Ilse Zündorf, Andreas H Groll
An expanding list of immunomodulatory or immunosuppressive monoclonal antibodies (mAbs) and biologic therapeutics is currently entering clinical practice, particularly in the areas of oncology, transplantation and autoimmune disorders. These agents are directed against molecules or cells involved in inflammation and immunity and may therefore be associated with serious and opportunistic infections. The purpose of this review was to critically analyse the literature on invasive fungal infections (IFIs) occurring in association with mAbs and fusion proteins other than tumour necrosis alpha (TNF-α) inhibitors, including therapeutics modulating T-cell-mediated pathologies (muromonab, abatacept, belatacept, ipilimumab, basiliximab, daclizumab), inducing lymphopenia (alemtuzumab), depleting CD20+ B cells (rituximab) and interfering with various targets (anakinra, natalizumab, blodalumab, ixekizumab and others) with a focus on children, and to provide a framework of evaluating the risk for IFIs in this population...
April 26, 2017: Mycoses
https://www.readbyqxmd.com/read/28444770/factors-associated-with-local-recurrence-in-operated-osteosarcomas-a-retrospective-evaluation-of-95-cases-from-a-tertiary-care-center-in-a-resource-challenged-environment
#20
Rishi R Poudel, Vivek Tiwari, Venkatesan S Kumar, Sameer Bakhshi, Shivanand Gamanagatti, Shah Alam Khan, Shishir Rastogi
BACKGROUND AND OBJECTIVES: Local control of disease is one of the main goals of osteosarcoma management. We conducted a retrospective evaluation of 95 operated cases of osteosarcoma over 7 years to know about the factors associated with local recurrence in resource-challenged environment of the developing world. METHODS: The factors which were evaluated and compared between local recurrence and non-local recurrence groups included demographic profile, site of tumor, whether biopsy done outside, type of surgery (limb salvage or amputation), presence of pathological fracture, vicinity of neurovascular bundle, tumor volume, histological subtype, chemotherapy induced necrosis, surgical margins, and delay in surgery...
April 25, 2017: Journal of Surgical Oncology
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