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https://www.readbyqxmd.com/read/29929194/statins-and-thyroid-carcinoma-a-meta-analysis
#1
Junyu Zhao, Chunmei Xu, Jinming Yao, Changzhen Yu, Lin Liao, Jianjun Dong
BACKGROUND/AIMS: Experimental studies have reported the antineoplastic effects of statins in thyroid carcinoma; however, observational studies suggested that statins might increase the risk of thyroid carcinoma. Therefore, this study evaluated the antineoplastic effects of statins in both in vitro studies and animal models, as well as the epidemiological evidence. METHODS: Databases-PubMed, Cochrane Library, SinoMed, CNKI, Wanfang, and clinical trial registries- were searched...
June 19, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29929173/influence-of-tranexamic-acid-on-cerebral-hemorrhage-a-meta-analysis-of-randomized-controlled-trials
#2
REVIEW
Beilei Huang, Qiusheng Xu, Ru Ye, Jun Xu
Tranexamic acid might be beneficial for cerebral hemorrhage. However, the results remained controversial. We conducted a systematic review and meta-analysis to explore the influence of tranexamic acid on cerebral hemorrhage. PubMed, EMbase, Web of science, EBSCO, and Cochrane library databases were systematically searched. Randomized controlled trials (RCTs) assessing the effect of tranexamic acid on cerebral hemorrhage were included. Two investigators independently searched articles, extracted data, and assessed the quality of included studies...
June 12, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29929161/do-spatiotemporal-parameters-and-gait-variability-differ-across-the-lifespan-of-healthy-adults-a-systematic-review
#3
REVIEW
Nolan Herssens, Evi Verbecque, Ann Hallemans, Luc Vereeck, Vincent Van Rompaey, Wim Saeys
BACKGROUND: Aging is often associated with changes in the musculoskeletal system, peripheral and central nervous system. These age-related changes often result in mobility problems influencing gait performance. Compensatory strategies are used as a way to adapt to these physiological changes. RESEARCH QUESTION: The aim of this review is to investigate the differences in spatiotemporal and gait variability measures throughout the healthy adult life. METHODS: This systematic review was conducted according to the PRISMA guidelines and registered in the PROSPERO database (no...
June 12, 2018: Gait & Posture
https://www.readbyqxmd.com/read/29929155/association-between-eczema-and-risk-of-depression-a-systematic-review-and-meta-analysis-of-188-495-participants
#4
REVIEW
Qinyi Bao, Lina Chen, Zhiyu Lu, Yongyan Ma, Lili Guo, Shuaishuai Zhang, Xiaoping Huang, Suling Xu, Liemin Ruan
BACKGROUND: Several studies were conducted to investigate the association between eczema and risk of depression. This was important because the care of patients with eczema might be inadequate if their psychological problems were not also recognized and treated. However, these studies had some inherent limitations such as small sample sizes or lack of controlling for potential confounders. Further, little was known about psychological co-morbidity of eczema from a global perspective. METHODS: We conducted a systematic literature search in PubMed (1966 through January 26th 2017), Cochrane Library (the Cochrane central register of controlled trials, up to January 26th 2017), Scopus (up to December 31st 2016) and Embase (1980 through January 26th 2017) supplemented by manual searches of bibliographies and conference proceedings...
May 15, 2018: Journal of Affective Disorders
https://www.readbyqxmd.com/read/29928800/rationalizing-context-dependent-performance-of-dynamic-rna-regulatory-devices
#5
Ross Kent, Samantha Halliwell, Kate Young, Neil Swainston, Neil Dixon
The ability of RNA to sense, regulate and store information is an attractive attribute for a variety of functional applications including the development of regulatory control devices for synthetic biology. RNA folding and function is known to be highly context sensitive, which limits the modularity and reuse of RNA regulatory devices to control different heterologous sequences and genes. We explored the cause and effect of sequence context sensitivity for translational ON riboswitches located in the 5' UTR, by constructing and screening a library of N-terminal synonymous codon variants...
June 21, 2018: ACS Synthetic Biology
https://www.readbyqxmd.com/read/29928785/oxygen-initiated-and-regulated-controlled-radical-polymerization-under-ambient-conditions
#6
Xiangcheng Pan, Chunna Lv, Congze He
A rapid oxygen-initiated and -regulated controlled radical polymerization was conducted under ambient temperature and atmosphere. The reaction between triethylborane and oxygen provides ethyl radicals which initiate and mediate the radical polymerization. The controlled radical polymerization was achieved using RAFT chain transfer agents (CTA) without any process of removing oxygen, providing well-defined polymers with almost full conversion (>95%) in short period (15 mins). High-throughput screening was used to discover the suitable conditions for various CTA and monomers...
June 21, 2018: Angewandte Chemie
https://www.readbyqxmd.com/read/29928773/hydrocarbon-degrading-bacteria-in-deep-water-subarctic-sediments-faroe-shetland-channel
#7
Evangelia Gontikaki, Lloyd Potts, James A Anderson, Ursula Witte
AIMS: The aim of this study was the baseline description of oil-degrading sediment bacteria along a depth transect in the Faroe-Shetland Channel (FSC) and the identification of biomarker taxa for the detection of oil contamination in FSC sediments. METHODS AND RESULTS: Oil-degrading sediment bacteria from 135, 500 and 1000 m were enriched in cultures with crude oil as the sole carbon source (at 12, 5 and 0°C respectively). The enriched communities were studied using culture-dependent and culture-independent (clone libraries) techniques...
June 21, 2018: Journal of Applied Microbiology
https://www.readbyqxmd.com/read/29928614/incidence-of-urinary-extravasation-and-rate-of-ureteral-stenting-after-high-grade-renal-trauma-in-adults-a-meta-analysis
#8
Sorena Keihani, Ross E Anderson, Michelle Fiander, Mary M McFarland, Gregory J Stoddard, James M Hotaling, Jeremy B Myers
Background: Collecting system injury and urinary extravasation is an important yet understudied aspect of renal trauma. We aimed to examine the incidence of urinary extravasation and also the rates of ureteral stenting after high-grade renal trauma (HGRT) in adults. Methods: A search strategy was developed to search Ovid Medline, Embase, CINAHL, and Cochrane Library. Two reviewers screened titles and abstracts, followed by full-text review of the relevant publications...
May 2018: Translational Andrology and Urology
https://www.readbyqxmd.com/read/29928607/risk-factors-for-poor-outcome-in-posterior-reversible-encephalopathy-syndrome-systematic-review-and-meta-analysis
#9
Zheng Chen, Gang Zhang, Alexander Lerner, An-Hui Wang, Bo Gao, Jie Liu
Background: The roles of clinical etiology and symptoms, imaging findings and biochemical parameters in predicting the prognosis of posterior reversible encephalopathy syndrome (PRES) have not been well-characterized. We perform a meta-analysis of all published studies to assess the value of various risk factors in predicting the prognosis of PRES. Methods: Searches of the PubMed, EMBASE, Cochrane Library, and Web of Science databases were performed to identify the eligible studies...
May 2018: Quantitative Imaging in Medicine and Surgery
https://www.readbyqxmd.com/read/29928581/protatether-a-method-for-the-incorporation-of-variable-linkers-in-protein-fusions-reveals-impacts-of-linker-flexibility-in-a-pkac-gfp-fusion-protein
#10
Jessica L Norris, Robert M Hughes
Protein fusions are of fundamental importance in the study of cellular biology and the elucidation of cell signaling pathways, and the importance of linkers for the proper function of protein fusions is well documented in the literature. However, there are few convenient methods available to experimentalists for the systematic implementation of linkers in protein fusions. In this work, we describe a universal approach to the creation and insertion of focused linker libraries into protein fusions. This process, deemed protaTETHER, utilizes reiterative oligomer design, PCR-mediated linker library generation, and restriction enzyme-free cloning methods in a straightforward, three-step cloning process...
June 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29928344/mitoxantrone-induces-apoptosis-in-osteosarcoma-cells-through-regulation-of-the-akt-foxo3-pathway
#11
See-Hyoung Park, Jongsung Lee, Mi-Ae Kang, Kyu Yun Jang, Jung Ryul Kim
The outcome of chemotherapy for osteosarcoma have improved during the past decade and more patients have access to combination chemotherapy, but there has been no significant clinical progress in the patient survival rate. Recently, forkhead-box O3 (FOXO3) was identified as a pivotal transcription factor responsible for the transcriptional regulation of genes associated with suppression of cancer. The purpose of the present study was to screen small chemicals activating FOXO3 and elucidate their underlying mechanism...
June 2018: Oncology Letters
https://www.readbyqxmd.com/read/29928268/a-small-molecule-screening-pipeline-to-evaluate-the-therapeutic-potential-of-2-aminoimidazole-molecules-against-clostridium-difficile
#12
Rajani Thanissery, Daina Zeng, Raul G Doyle, Casey M Theriot
Antibiotics are considered to be the first line of treatment for mild to moderately severe Clostridium difficile infection (CDI) in humans. However, antibiotics are also risk factors for CDI as they decrease colonization resistance against C. difficile by altering the gut microbiota and metabolome. Finding compounds that selectively inhibit different stages of the C. difficile life cycle, while sparing the indigenous gut microbiota is important for the development of alternatives to standard antibiotic treatment...
2018: Frontiers in Microbiology
https://www.readbyqxmd.com/read/29928135/association-between-tobacco-smoking-and-drug-resistant-tuberculosis
#13
REVIEW
Ming-Gui Wang, Wei-Wei Huang, Yu Wang, Yun-Xia Zhang, Miao-Miao Zhang, Shou-Quan Wu, Andrew J Sandford, Jian-Qing He
Background: Tobacco smoking is a risk factor for tuberculosis but little is known about the relationship between tobacco smoking and drug-resistant tuberculosis (DR-TB). We undertook a systematic review and meta-analysis to quantitatively assess the association between DR-TB and tobacco smoking. Methods: We searched for relevant studies in the Ovid MEDLINE, Embase, Cochrane Library, Web of Science, China National Knowledge Infrastructure, WANFANG, and WEIPU data-bases from inception to September 1, 2017...
2018: Infection and Drug Resistance
https://www.readbyqxmd.com/read/29928123/addictive-potential-of-novel-treatments-for-refractory-depression-and-anxiety
#14
REVIEW
Dusan Kolar
Treatment-resistant mood disorders and anxiety disorders require intensive treatment, but treatment options should balance benefits and adverse effects or other potential detrimental effects on patients, including the risk of developing prescription medication addiction. Some of the newer treatment modalities for mood and anxiety disorders may have similar properties to benzodiazepines. The goal of this review was to identify the potential for developing dependence on the novel treatment approaches to treatment-resistant depression and refractory anxiety disorders...
2018: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29927749/molecular-dynamics-visualization-mdv-stereoscopic-3d-display-of-biomolecular-structure-and-interactions-using-the-unity-game-engine
#15
Michael Wiebrands, Chris J Malajczuk, Andrew J Woods, Andrew L Rohl, Ricardo L Mancera
Molecular graphics systems are visualization tools which, upon integration into a 3D immersive environment, provide a unique virtual reality experience for research and teaching of biomolecular structure, function and interactions. We have developed a molecular structure and dynamics application, the Molecular Dynamics Visualization tool, that uses the Unity game engine combined with large scale, multi-user, stereoscopic visualization systems to deliver an immersive display experience, particularly with a large cylindrical projection display...
June 21, 2018: Journal of Integrative Bioinformatics
https://www.readbyqxmd.com/read/29927122/synthesis-of-n-6-substituted-adenosines-as-cytokinin-nucleosides
#16
Mikhail S Drenichev, Vladimir E Oslovsky, Vitali I Tararov, Sergey N Mikhailov
This unit describes preparation of N6 -substituted adenosines (cytokinin nucleosides), a unique class of compounds with a wide spectrum of biological activities. Regioselective alkylation of N6 -acetyl-2',3',5'-tri-O-acetyladenosine with alkyl halides under basic conditions or alcohols under Mitsunobu conditions followed by deprotection are the methods of choice for the preparation of the cytokinin nucleosides. The attractive feature of this strategy is the possibility of using a broad library of commercially available alkyl halides and alcohols under mild reaction conditions...
March 2018: Current Protocols in Nucleic Acid Chemistry
https://www.readbyqxmd.com/read/29927115/characterizing-protein-kinase-substrate-specificity-using-the-proteomic-peptide-library-propel-approach
#17
Joshua M Lubner, Jeremy L Balsbaugh, George M Church, Michael F Chou, Daniel Schwartz
Characterizing protein kinase substrate specificity motifs represents a powerful step in elucidating kinase-signaling cascades. The protocol described here uses a bacterial system to evaluate kinase specificity motifs in vivo, without the need for radioactive ATP. The human kinase of interest is cloned into a heterologous bacterial expression vector and allowed to phosphorylate E. coli proteins in vivo, consistent with its endogenous substrate preferences. The cells are lysed, and the bacterial proteins are digested into peptides and phosphoenriched using bulk TiO2 ...
June 2018: Current Protocols in Chemical Biology
https://www.readbyqxmd.com/read/29927113/generating-fn3-based-affinity-reagents-through-phage-display
#18
Kevin Gorman, Jennifer McGinnis, Brian Kay
Antibodies are useful tools for detecting individual proteins in complex samples and for learning about their location, amount, binding partners, and function in cells. Unfortunately, generating antibodies is time consuming and laborious, and their affinity and/or specificity is often limited. This protocol offers a fast and inexpensive alternative to generate antibody surrogates through phage display of a library of fibronectin type III (FN3) monobody variants and affinity selection for binders. © 2018 by John Wiley & Sons, Inc...
June 2018: Current Protocols in Chemical Biology
https://www.readbyqxmd.com/read/29927111/rna-seq-for-bacterial-gene-expression
#19
Line Dahl Poulsen, Jeppe Vinther
RNA sequencing (RNA-seq) has become the preferred method for global quantification of bacterial gene expression. With the continued improvements in sequencing technology and data analysis tools, the most labor-intensive and expensive part of an RNA-seq experiment is the preparation of sequencing libraries, which is also essential for the quality of the data obtained. Here, we present a straightforward and inexpensive basic protocol for preparation of strand-specific RNA-seq libraries from bacterial RNA as well as a computational pipeline for the data analysis of sequencing reads...
June 2018: Current Protocols in Nucleic Acid Chemistry
https://www.readbyqxmd.com/read/29927054/barriers-and-enablers-to-patient-recruitment-for-randomised-controlled-trials-on-treatment-of-chronic-wounds-a-systematic-review
#20
Lyndal Bugeja, Jac Kee Low, Rosemary A McGinnes, Victoria Team, Sankar Sinha, Carolina Weller
Randomised controlled trials represent the gold standard in intervention efficacy evaluation. However, suboptimal recruitment affects completion and the power of a therapeutic trial in detecting treatment differences. We conducted a systematic review to examine the barriers and enablers to patient recruitment for randomised controlled trials on chronic wound treatment. Review registration was under PROSPERO 2017:CRD42017062438. We conducted a systematic search of Ovid MEDLINE, EBSCOhost CINAHL, Ovid Cochrane Library, Ovid EMBASE, and Ovid PsycINFO databases in June 2017 for chronic wound treatment randomised controlled trials...
June 21, 2018: International Wound Journal
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