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https://www.readbyqxmd.com/read/28655086/-clinical-study-of-smt-%C3%A2-video-laryngoscope-with-difficult-airway-intubation-in-emergency-department
#1
J H Yu, Y Wang
Objective: To observe the clinical feasibility and security of SMT-Ⅱ video laryngoscope in difficult airway intubation in emergency department. Methods: This study took 90 adults with difficult airway who were admitted to the rescue room of Jingxi court of Beijing Chao-Yang Hospital, Capital Medical University from January 2015 to December 2016.The patients were randomly divided into 2 groups(SMT-Ⅱ video laryngoscope group: n=45, Macintosh direct laryngoscope group: n=45), which were treated with endotracheal intubation and ventilator assisted ventilation...
July 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28655071/melatonin-rescues-mesenchymal-stem-cells-from-senescence-induced-by-the-uremic-toxin-p-cresol-via-inhibiting-mtor-dependent-autophagy
#2
Seung Pil Yun, Yong-Seok Han, Jun Hee Lee, Sang Min Kim, Sang Hun Lee
p-Cresol, found at high concentrations in the serum of chronic kidney failure patients, is known to cause cell senescence and other complications in different parts of the body. p-Cresol is thought to mediate cytotoxic effects through the induction of autophagy response. However, toxic effects of p-cresol on mesenchymal stem cells have not been elucidated. Thus, we aimed to investigate whether p-cresol induces senescence of mesenchymal stem cells, and whether melatonin can ameliorate abnormal autophagy response caused by p-cresol...
June 27, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28654657/hek293t-cell-lines-defective-for-o-linked-glycosylation
#3
James M Termini, Zachary A Silver, Bryony Connor, Aristotelis Antonopoulos, Stuart M Haslam, Anne Dell, Ronald C Desrosiers
Here we describe derivatives of the HEK293T cell line that are defective in their ability to generate mucin-type O-linked glycosylation. Using CRISPR/Cas9 and a single-cell GFP-sorting procedure, the UDP-galactose-4-epimerase (GALE), galactokinase 1 (GALK1), and galactokinase 2 (GALK2) genes were knocked out individually and in combinations with greater than 90% of recovered clones having the desired mutations. Although HEK293T cells are tetraploid, we found this approach to be an efficient method to target and disrupt all 4 copies of the target gene...
2017: PloS One
https://www.readbyqxmd.com/read/28654556/patient-controlled-intravenous-analgesia-with-combination-of-dexmedetomidine-and-sufentanil-on-patients-after-abdominal-operation-a-prospective-randomized-controlled-blinded-multicenter-clinical-study
#4
Yongtao Gao, Xiaoming Deng, Hongbing Yuan, Yufang Leng, Tiezheng Zhang, Xuzhong Xu, Suming Tian, Jun Fang, Wen Ouyang, Xinming Wu
OBJECTIVE: To investigate the effect of combination of dexmedetomidine and sufentanil on patient-controlled intravenous analgesia (PCIA) in patients after abdominal operation and to assess the safety and validity of this treatment. METHODS: This is a prospective, randomized controlled, blinded, multicenter clinical study. A total of 210 patients from 9 clinical research centers underwent selective abdominal operation with general anesthesia were enrolled in the study, including laparoscopic-assisted abdominal operation on stomach, intestines or open surgery on stomach, intestines, kidneys and liver, ASA status I-II...
June 16, 2017: Clinical Journal of Pain
https://www.readbyqxmd.com/read/28654045/rescue-and-characterization-of-recombinant-virus-from-a-new-world-zika-virus-infectious-clone
#5
James Weger-Lucarelli, Nisha K Duggal, Aaron C Brault, Brian J Geiss, Gregory D Ebel
Infectious cDNA clones allow for genetic manipulation of a virus, thus facilitating work on vaccines, pathogenesis, replication, transmission and viral evolution. Here we describe the construction of an infectious clone for Zika virus (ZIKV), which is currently causing an explosive outbreak in the Americas. To prevent toxicity to bacteria that is commonly observed with flavivirus-derived plasmids, we generated a two-plasmid system which separates the genome at the NS1 gene and is more stable than full-length constructs that could not be successfully recovered without mutations...
June 7, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/28654021/vitamin-c-aging-and-alzheimer-s-disease
#6
REVIEW
Fiammetta Monacelli, Erica Acquarone, Chiara Giannotti, Roberta Borghi, Alessio Nencioni
Accumulating evidence in mice models of accelerated senescence indicates a rescuing role of ascorbic acid in premature aging. Supplementation of ascorbic acid appeared to halt cell growth, oxidative stress, telomere attrition, disorganization of chromatin, and excessive secretion of inflammatory factors, and extend lifespan. Interestingly, ascorbic acid (AA) was also found to positively modulate inflamm-aging and immunosenescence, two hallmarks of biological aging. Moreover, ascorbic acid has been shown to epigenetically regulate genome integrity and stability, indicating a key role of targeted nutrition in healthy aging...
June 27, 2017: Nutrients
https://www.readbyqxmd.com/read/28653891/histone-deacetylase-5-promotes-the-migration-and-invasion-of-hepatocellular-carcinoma-via-increasing-the-transcription-of-hypoxia-inducible-factor-1%C3%AE-under-hypoxia-condition
#7
Ming Ye, Zejun Fang, Hongqian Gu, Rui Song, Jiangwei Ye, Hongzhang Li, Zhiguang Wu, Shenghui Zhou, Peng Li, Xiang Cai, Xiaokun Ding, Songshan Yu
Hypoxia plays a critical role in the progression and metastasis of hepatocellular carcinoma by activating the key transcription factor, hypoxia-inducible factor-1. This study aims to identify the novel mechanisms underlying the dysregulation of hypoxia-inducible factor-1α in hepatocellular carcinoma. We found that histone deacetylase 5, a highly expressed histone deacetylase in hepatocellular carcinoma, strengthened the migration and invasion of hepatocellular carcinoma cells under hypoxia but not normoxia condition...
June 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28653805/microrna-30e-5p-promotes-cell-growth-by-targeting-ptpn13-and-indicates-poor-survival-and-recurrence-in-lung-adenocarcinoma
#8
Li Zhuang, Tao Shou, Ke Li, Chun-Lin Gao, Lin-Can Duan, Li-Zhou Fang, Qin-Yong Zhang, Zong-Ning Chen, Chao Zhang, Shou-Tao Yang, Gao-Feng Li
Aberrant microRNA expression is involved in the regulation of various cellular processes, such as proliferation and metastasis in multiple diseases including cancers. MicroRNA-30e-5p (miR-30e) was previously reported as an oncogenic or tumour suppressing miRNA in some malignancies, but its function in lung adenocarcinoma (LAC) remains largely undefined. In this study, we found that the expression of miR-30e was increased in LAC tissues and cell lines, associated with tumour size and represented an independent prognostic factor for overall survival and recurrence of LAC patients...
June 27, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28653605/knockdown-of-lncrna-hoxa11-antisense-promotes-glioma-cell-apoptosis-via-sponging-mir-140-5p
#9
Yan Cui, Lei Yi, Ming-Ming Zhang, Yu Zhou, Zhi-Gang Tan, Tao Huang, Yu-Gang Jiang
Long non-coding RNAs (lncRNAs) are proved as important regulators in many diseases, including multiple cancers. HOXA11antisense RNA (HOXA11-AS) is a novel identified lncRNA associated with cancer progression. However, the role of HOXA11-AS in glioma remains poorly understood and needs to be elucidated. The purpose of this study is to investigate the role and regulating mechanism of HOXA11-AS on gliomagenesis. Expression of HOXA11-AS was significantly up-regulated in glioma tissue and cell lines compared to the adjacent normal tissue and cells...
June 12, 2017: Oncology Research
https://www.readbyqxmd.com/read/28653604/microrna-139-5p-inhibit-cell-proliferation-and-invasion-by-targeting-rho-associated-coiled-coil-containing-protein-kinase-2-in-ovarian-cancer
#10
Yanli Wang, Jia Li, Chunling Xu, Xiaomeng Zhang
Increasing evidence indicates that the dysregulation of microRNAs is associated with the development and progression ofvarious cancers. MicroRNA-139-5p (miR-139-5p) has been reported to have tumor-suppressive role in many types of cancers. But the role of miR-139-5p in ovarian cancer (OC) is poorly understood. The purpose of the present study was to explore the expression of miR-139-5p and its function in OC. The results showed that miR-139-5p expression was markedly downregulated in OC tissues and cell lines...
June 14, 2017: Oncology Research
https://www.readbyqxmd.com/read/28653600/mir-205-inhibits-growth-and-invasion-of-neuroblastoma-by-targeting-camp-responsive-element-binding-protein-1
#11
Shu Chen, Lianhua Jin, Shu Nie, Lizhi Han, Na Lu, Yan Zhou
Accumulating evidence indicates that microRNA-205 (miR-205) is involved in tumor initiation, development, and metastasis in various cancers. However, its functions in neuroblastoma(NB) remain largely unclear. Here, we found that miR-205 was significantly downregulated in human NB tissue samples and cell lines. miR-205 expression was lower in poorly differentiated NB tissues and those of advanced International Neuroblastoma Staging System stage. In addition, restoration of miR-205 in NB cells suppressed proliferation, migration, and invasion, and induced cell apoptosis in vitro, as well as impaired tumor growth in vivo...
June 26, 2017: Oncology Research
https://www.readbyqxmd.com/read/28652762/microrna-148b-suppresses-proliferation-migration-and-invasion-of-nasopharyngeal-carcinoma-cells-by-targeting-metastasis-associated-gene-2
#12
Minhua Wu, Xiaoxia Ye, Shengchun Wang, Qinghua Li, Yinxuan Lai, Yanmei Yi
PURPOSE: MicroRNAs (miRNAs) play important roles in tumorigenesis and metastasis by regulating genes expression. MiRNA-148b (miR-148b) had been reported to inhibit tumor progression in some kinds of cancers, but the functions of miR-148b in nasopharyngeal carcinoma (NPC) remain largely unknown. The aim of this study was to investigate the functional role of miR-148b in NPC. METHODS: Expression of miR-148b in NPC tissues and cell lines was detected by quantitative reverse transcription polymerase chain reaction...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28652412/extracellular-zn-2-is-essential-for-amyloid-%C3%AE-1-42-induced-cognitive-decline-in-the-normal-brain-and-its-rescue
#13
Atsushi Takeda, Haruna Tamano, Munekazu Tempaku, Miku Sasaki, Chihiro Uematsu, Shoko Sato, Hiroaki Kanazawa, Zsolt L Datki, Paul A Adlard, Ashley I Bush
Brain Aβ1-42 accumulation is considered an upstream event in pathogenesis of Alzheimer's disease. However, accumulating evidence indicates that other neurochemical changes potentiate the toxicity of this constituively-generated peptide. Here we report that the interaction of Aβ1-42 with extracellular Zn(2+) is essential for in vivo rapid uptake of Aβ1-42 and Zn(2+) into dentate granule cells in the normal rat hippocampus. The uptake of both Aβ1-42 and Zn(2+) were blocked by CaEDTA, an extracellular Zn(2+) chelator, and by Cd(2+), a metal that displaces Zn(2+) for Aβ1-42-binding...
June 26, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28652410/prefrontal-cortex-dysfunction-in-fragile-x-mice-depends-on-the-continued-absence-of-fragile-x-mental-retardation-protein-in-the-adult-brain
#14
Jennifer J Siegel, Raymond A Chitwood, James M Ding, Clayton Payne, William Taylor, Richard Gray, Boris V Zemelman, Daniel Johnston
Fragile X Syndrome (FX) is generally considered a developmental disorder, arising from a mutation that disrupts the transcription of Fragile X Mental Retardation Protein (FMRP). However, FMRP regulates the transcription of other proteins and participates in an unknown number of protein-protein interactions throughout life. In addition to known developmental issues, it is thus likely that some dysfunction is also due to the ongoing absence of FMRP. Dissociating dysfunction due to developmental dysregulation from dysfunction due to the continued absence of FMRP is necessary to understand the different roles of FMRP and to treat patients effectively throughout life...
June 26, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28652370/small-mitochondrial-arf-smarf-protein-corrects-p53-independent-developmental-defects-of-arf-tumor-suppressor-deficient-mice
#15
Jolieke G van Oosterwijk, Chunliang Li, Xue Yang, Joseph T Opferman, Charles J Sherr
The mouse p19(Arf) (human p14(ARF)) tumor suppressor protein, encoded in part from an alternative reading frame of the Ink4a (Cdkn2a) gene, inhibits the Mdm2 E3 ubiquitin ligase to activate p53. Arf is not expressed in most normal tissues of young mice but is induced by high thresholds of aberrant hyperproliferative signals, thereby activating p53 in incipient tumor cells that have experienced oncogene activation. The single Arf mRNA encodes two distinct polypeptides, including full-length p19(Arf) and N-terminally truncated and unstable p15(smArf) ("small mitochondrial Arf") initiated from an internal in-frame AUG codon specifying methionine-45...
June 26, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28652304/thymic-progenitors-of-tcr%C3%AE-%C3%AE-cd8%C3%AE-%C3%AE-intestinal-intraepithelial-lymphocytes-require-rasgrp1-for-development
#16
Dominic P Golec, Romy E Hoeppli, Laura M Henao Caviedes, Jillian McCann, Megan K Levings, Troy A Baldwin
Strong T cell receptor (TCR) signaling largely induces cell death during thymocyte development, whereas weak TCR signals induce positive selection. However, some T cell lineages require strong TCR signals for differentiation through a process termed agonist selection. The signaling relationships that underlie these three fates are unknown. RasGRP1 is a Ras activator required to transmit weak TCR signals leading to positive selection. Here, we report that, despite being dispensable for thymocyte clonal deletion, RasGRP1 is critical for agonist selection of TCRαβ(+)CD8αα intraepithelial lymphocyte (IEL) progenitors (IELps), even though both outcomes require strong TCR signaling...
June 26, 2017: Journal of Experimental Medicine
https://www.readbyqxmd.com/read/28652237/the-candidate-antimalarial-drug-mmv665909-causes-oxygen-dependent-mrna-mistranslation-and-synergises-with-quinoline-derived-antimalarials
#17
Cindy Vallières, Simon V Avery
To cope with growing resistance to current antimalarials, new drugs with novel modes of action are urgently needed. Molecules targeting protein synthesis appear to be promising candidates. We identified a compound (MMV665909) from the MMV Malaria Box of candidate antimalarials that could produce synergistic growth inhibition with the aminoglycoside antibiotic paromomycin, suggesting a possible action of the compound in mRNA mistranslation. This mechanism of action was substantiated with the yeast cell model using available reporters of mistranslation and other genetic tools...
June 26, 2017: Antimicrobial Agents and Chemotherapy
https://www.readbyqxmd.com/read/28651973/1-25-oh-2d3-disrupts-glucose-metabolism-in-prostate-cancer-cells-leading-to-a-truncation-of-the-tca-cycle-and-inhibition-of-txnip-expression
#18
Mohamed A Abu El Maaty, Hamed Alborzinia, Shehryar J Khan, Michael Büttner, Stefan Wölfl
Prostate cell metabolism exhibits distinct profiles pre- and post-malignancy. The malignant metabolic shift converts prostate cells from "citrate-producing" to "citrate-oxidizing" cells, thereby enhancing glucose metabolism, a phenotype that contrasts classical tumoral Warburg metabolism. An on-line biosensor chip system (BIONAS 2500) was used to monitor metabolic changes (glycolysis and respiration) in response to the putative anti-cancer nutraceutical 1,25-dihydroxyvitamin D3 [1,25(OH)2D3], in different prostate cancer (PCa) cell lines (LNCaP, VCaP, DU145 and PC3)...
June 23, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28651888/how-can-lifeguards-recover-better-a-cross-over-study-comparing-resting-running-and-foam-rolling
#19
Antón Kalén, Alexandra Pérez-Ferreirós, Roberto Barcala-Furelos, María Fernández-Méndez, Alexis Padrón-Cabo, Jose-Antonio Prieto, Andrés Ríos-Ave, Cristian Abelairas-Gómez
PURPOSE: The aim of this study is to compare the effectiveness of active recovery in form of running or foam rolling on clearing blood lactate compared to remain sitting after a water rescue. METHOD: A quasi experimental cross-over design was used to test the effectiveness of two active recovery methods: foam rolling (FR) and running (RR), compared with passive recovery (PR) on the blood lactate clearance after performing a water rescue. Twelve lifeguards from Marín (Pontevedra) completed the study...
June 15, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28651607/the-long-non-coding-rna-bc200-bcyrn1-is-critical-for-cancer-cell-survival-and-proliferation
#20
Evan P Booy, Ewan Ks McRae, Amit Koul, Francis Lin, Sean A McKenna
BACKGROUND: BC200 is a long non-coding RNA expressed at high levels in the brain and elevated in a variety of tumour types. BC200 has a hypothesized role in translational regulation; however, to date the functional role of BC200 in both normal and diseased states remains poorly characterized. METHODS: Detailed BC200 expression analyses were performed in tumor cell lines, primary and non-tumorigenic cultured breast and lung cells, and a panel of normal human tissues by quantitative real-time PCR and confirmed by northern blot...
June 26, 2017: Molecular Cancer
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