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https://www.readbyqxmd.com/read/28823144/factors-impacting-patient-cooperation-during-elective-gastroscopy
#1
Sang Pyo Lee, In-Kyung Sung, Jeong Hwan Kim, Sun-Young Lee, Hyung Seok Park, Chan Sup Shim
Background/Aims: Some people have difficulty tolerating upper endoscopy. The cause of and risk factors for this are not well known. The aim of this study was to investigate the factors involved in poor cooperation during screening upper endoscopy. Methods: A total of 4,422 subjects who underwent a health inspection with upper endoscopy carried out by a single experienced endoscopist were included. We retrospectively investigated subjects' self-reporting questionnaires and medical records, including endoscopic and histologic findings...
August 22, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28822433/-molecular-biological-and-clinical-characteristics-of-respiratory-syncytial-virus-in-children-with-bronchiolitis
#2
T H Zhang, J Deng, Y Qian, R N Zhu, Y Sun, F Wang, R Tian, L Q Zhao
Objective: To investigate the clinical characteristics of respiratory syncytial virus(RSV)bronchiolitis and molecular biological characteristics of RSV in children in Beijing. Method: In a systematic retrospective study, 2 296 nasopharyngeal aspirates (NPA) were collected from children diagnosed with bronchiolitis from July 2006 to June 2016 for respiratory virus screening using direct immunofluorescence assay (DFA). For specimens positive for RSV, subgroup A or B was confirmed by real time RT-PCR and genotype of RSV was determined by amplifying the full G glycoprotein gene and sequencing...
August 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/28821890/detection-rate-of-high-grade-cervical-neoplasia-and-cost-effectiveness-of-high-risk-human-papillomavirus-genotyping-with-reflex-liquid-based-cytology-in-cervical-cancer-screening
#3
Sun Kuie Tay, Lynette Eo Lin, Ronald Ch Goh
INTRODUCTION: This study aimed to determine the prevalence of cervical intraepithelial neoplasia grade 3 or worse (≥CIN3) and cost-effectiveness of human papillomavirus (HPV) genotyping with reflex liquid-based cytology (LBC) for cervical cancer screening in Singapore. MATERIALS AND METHODS: Women who were ≥25 years old and undertook co-testing with LBC and HPV-genotyping (Cobas-4800, Roche, USA) for HPV-16, HPV-18 and 12 high-risk HPV types in a single institution were studied retrospectively...
July 2017: Annals of the Academy of Medicine, Singapore
https://www.readbyqxmd.com/read/28820578/integrated-microfluidic-platform-with-multiple-functions-to-probe-the-tumor-endothelial-cell-interaction
#4
Ling Lin, Xuexia Lin, Luyao Lin, Qiang Feng, Takehiko Kitamori, Jin-Ming Lin, Jiashu Sun
Interaction between tumor and endothelial cells could affect tumor growth and progression, and induce drug resistance during cancer therapy. Investigation on tumor-endothelial cell interaction involves cell co-culture, protein detection, and analysis of drug metabolites, which are complicated and time-consuming. In this work, we present an integrated microfluidic device with three individual components (the cell co-culture component, the protein detection component, and the pre-treatment component for drug metabolites) to probe the interaction between tumor and endothelial cells...
August 18, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28819443/predictive-value-of-primary-tumor-site-for-loco-regional-recurrence-in-early-breast-cancer-patients-with-one-to-three-positive-axillary-lymphadenophy
#5
Shaoqing Niu, Ge Wen, Yufeng Ren, Yiyang Li, Lingling Feng, Chengtao Wang, Xiaobo Huang, Bixiu Wen, Yujing Zhang
Introduction: It remains controversial on high risks for early breast cancer patients with one to three axillary nodes after mastectomy who is predisposition to locoregional recurrence. The present study is to investigate the relationship between primary tumor site and loco-regional recurrence (LRR) and explore the predictive value of clinicopathological characteristics in LRR for early breast cancer patients with one to three positive axillary lymph nodes after mastectomy. Methods: We reviewed the clinical data of 656 consecutively diagnosed patients with pT1-2N1M0 breast cancer who were treated in Sun Yat-sen University Cancer Center with radical operation without postoperative radiotherapy between March 1998 and December 2010...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28819431/tat-interactive-protein-60kda-tip60-regulates-the-tumorigenesis-of-lung-cancer-in-vitro
#6
Yang Yang, Jian Sun, Ting Chen, Zengyue Tao, Xianwei Zhang, Feng Tian, Xiao Zhou, Daru Lu
Histone acetyltransferases (HATs) play vital functions in the tumorigenesis of many solid organ malignancies. We previously screened a human HATs cDNA library and identified Tat-interactive protein-60KDa (TIP60) as a candidate critical HATs in the origination of lung cancer. In this study, our data suggested that overexpression of TIP60 inhibited the cell viability of A549 and H1299 cells since day 2. Compared to the control group, the viability of these two lung cancer cells was inhibited by 25% and 19% at day 6 with the overexpression of TIP60...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28813410/identification-of-cmtm6-and-cmtm4-as-pd-l1-protein-regulators
#7
Riccardo Mezzadra, Chong Sun, Lucas T Jae, Raquel Gomez-Eerland, Evert de Vries, Wei Wu, Meike E W Logtenberg, Maarten Slagter, Elisa A Rozeman, Ingrid Hofland, Annegien Broeks, Hugo M Horlings, Lodewyk F A Wessels, Christian U Blank, Yanling Xiao, Albert J R Heck, Jannie Borst, Thijn R Brummelkamp, Ton N M Schumacher
The clinical benefit for patients with diverse types of metastatic cancers that has been observed upon blockade of the interaction between PD-1 and PD-L1 has highlighted the importance of this inhibitory axis in the suppression of tumour-specific T-cell responses. Notwithstanding the key role of PD-L1 expression by cells within the tumour micro-environment, our understanding of the regulation of the PD-L1 protein is limited. Here we identify, using a haploid genetic screen, CMTM6, a type-3 transmembrane protein of previously unknown function, as a regulator of the PD-L1 protein...
August 16, 2017: Nature
https://www.readbyqxmd.com/read/28811356/clinical-characteristics-of-heart-involvement-in-chinese-patients-with-takayasu-arteritis
#8
Jing Li, Hongchao Li, Fei Sun, Zhe Chen, Yunjiao Yang, Jiuliang Zhao, Mengtao Li, Xinping Tian, Xiaofeng Zeng
OBJECTIVE: To understand the characteristics of heart involvement in Chinese patients with Takayasu arteritis (TA). METHODS: The medical charts of 411 patients with TA (325 women, 86 men) were retrospectively reviewed. The comparison of clinical manifestations was carried out between the patients with TA with (n = 164) and without (n = 247) heart involvement. RESULTS: The median age at disease onset was 23.0 years (18.0-30.0) in 411 patients with TA, and 23...
August 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28810737/identification-of-the-colicin-v-bacteriocin-gene-cluster-by-functional-screening-of-a-human-microbiome-metagenomic-library
#9
Louis Cohen, Sun Han, Yun-Han Huang, Sean F Brady
The forces that shape human microbial ecology are complex. It is likely, that human microbiota, similarly to other microbiomes, use antibiotics as one way to establish an ecological niche. In this study, we use functional metagenomics to identify human microbial gene clusters that encode for antibiotic functions. Screening of a metagenomic library prepared from a healthy patient stool sample led to the identification of a family of clones with inserts that are 99% identical to a region of a virulence plasmid found in avian pathogenic Escherichia coli...
August 15, 2017: ACS Infectious Diseases
https://www.readbyqxmd.com/read/28808293/targeting-apolipoprotein-e-amyloid-%C3%AE-binding-by-peptoid-cpo_a%C3%AE-17-21%C3%A2-p-ameliorates-alzheimer-s-disease-related-pathology-and-cognitive-decline
#10
Shan Liu, Shinae Park, Grant Allington, Frances Prelli, Yanjie Sun, Mitchell Martá-Ariza, Henrieta Scholtzova, Goutam Biswas, Bernard Brown, Philip B Verghese, Pankaj D Mehta, Yong-Uk Kwon, Thomas Wisniewski
Inheritance of the apolipoprotein E4 (apoE4) genotype has been identified as the major genetic risk factor for late onset Alzheimer's disease (AD). Studies have shown that apoE, apoE4 in particular, binds to amyloid-β (Aβ) peptides at residues 12-28 of Aβ and this binding modulates Aβ accumulation and disease progression. We have previously shown in several AD transgenic mice lines that blocking the apoE/Aβ interaction with Aβ12-28 P reduced Aβ and tau-related pathology, leading to cognitive improvements in treated AD mice...
August 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28808113/lncrna-gas5-inhibits-microglial-m2-polarization-and-exacerbates-demyelination
#11
Dingya Sun, Zhongwang Yu, Xue Fang, Mingdong Liu, Yingyan Pu, Qi Shao, Dan Wang, Xiaolin Zhao, Aijun Huang, Zhenghua Xiang, Chao Zhao, Robin Jm Franklin, Li Cao, Cheng He
The regulation of inflammation is pivotal for preventing the development or reoccurrence of multiple sclerosis (MS). A biased ratio of high-M1 versus low-M2 polarized microglia is a major pathological feature of MS Here, using microarray screening, we identify the long noncoding RNA (lncRNA) GAS5 as an epigenetic regulator of microglial polarization. Gain- and loss-of-function studies reveal that GAS5 suppresses microglial M2 polarization. Interference with GAS5 in transplanted microglia attenuates the progression of experimental autoimmune encephalomyelitis (EAE) and promotes remyelination in a lysolecithin-induced demyelination model...
August 14, 2017: EMBO Reports
https://www.readbyqxmd.com/read/28808002/optimized-strategy-for-in-vivo-cas9-activation-in-drosophila
#12
Ben Ewen-Campen, Donghui Yang-Zhou, Vitória R Fernandes, Delfina P González, Lu-Ping Liu, Rong Tao, Xingjie Ren, Jin Sun, Yanhui Hu, Jonathan Zirin, Stephanie E Mohr, Jian-Quan Ni, Norbert Perrimon
While several large-scale resources are available for in vivo loss-of-function studies in Drosophila, an analogous resource for overexpressing genes from their endogenous loci does not exist. We describe a strategy for generating such a resource using Cas9 transcriptional activators (CRISPRa). First, we compare a panel of CRISPRa approaches and demonstrate that, for in vivo studies, dCas9-VPR is the most optimal activator. Next, we demonstrate that this approach is scalable and has a high success rate, as >75% of the lines tested activate their target gene...
August 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28807836/development-and-evaluation-of-the-automated-risk-assessment-system-for-multidrug-resistant-organisms-autoras-mdro
#13
Eun-Young Hur, Yinji Jin, Taixian Jin, Sun-Mi Lee
BACKGROUND: A high proportion of infections acquired in hospitals are caused by multidrug-resistant organisms (MDROs). The priority in MDRO prevention is to detect high-risk patients and implement preventive intervention as soon as possible. AIM: To develop an automated risk assessment system for MDROs (autoRAS-MDRO) to screen for patients at MDRO infection risk and evaluate the predictive validity of the autoRAS-MDRO. METHODS: Data for 4,200 variables were extracted from the electronic health records (EHRs) for constructing the MDRO risk-scoring algorithm, which was based on a logistic regression model...
August 11, 2017: Journal of Hospital Infection
https://www.readbyqxmd.com/read/28807730/development-of-a-dual-reporter-screening-assay-for-distinguishing-the-inhibition-of-hiv-tat-mediated-transcription-from-off-target-effects
#14
YoungHyun Shin, Byeong-Sun Choi, Kyung-Chang Kim, Chun Kang, Kisoon Kim, Cheol-Hee Yoon
Human immunodeficiency virus (HIV) encodes a transcription trans-activator (Tat) with an essential role in the transcriptional elongation of viral RNA based on the viral promoter long terminal repeat (LTR). Tat-mediated transcription is conserved and can be distinguished from host transcription, so it is a therapeutic target for combating HIV replication. Traditional screening assays for Tat-mediated transcriptional inhibitors are based on the biochemical properties of Tat and transactivation-responsive RNA...
August 12, 2017: Journal of Virological Methods
https://www.readbyqxmd.com/read/28807302/targeted-overexpression-of-cyclic-amp-dependent-protein-kinase-subunit-in-toxoplasma-gondii-promotes-replication-and-virulence-in-host-cells
#15
Hongchao Sun, Suhua Wang, Xianfeng Zhao, Chaoqun Yao, Haohan Zhuang, Yechuan Huang, Xueqiu Chen, Yi Yang, Aifang Du
Toxoplasma gondii (T. gondii) is one of the most common parasite that can infect almost any warm-blooded animals including humans. The cyclic nucleotide-dependent protein kinase (PKA) regulates a spectrum of intracellular signal pathways in many organisms. Protein kinase catalytic subunit (PKAC) is the core of the whole protein, and plays an important role in the life cycle of T.gondii. Here, T.gondii PKAC (TgPKAC) overexpression strain (TgPKAC-OE) was constructed. The growth of the TgPKAC-OE, RH△Ku80, and TgPKAC inhibition strains (TgPKAC-H89) were analysed by SYBR-green real-time PCR, and the ultrastructure was observed by transmission electron microscopy...
August 30, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28807011/changes-in-proteinuria-and-the-risk-of-myocardial-infarction-in-people-with-diabetes-or-pre-diabetes-a-prospective-cohort-study
#16
Anxin Wang, Yang Sun, Xiaoxue Liu, Zhaoping Su, Junjuan Li, Yanxia Luo, Shuohua Chen, Jianli Wang, Xia Li, Zhan Zhao, Huiping Zhu, Shouling Wu, Xiuhua Guo
BACKGROUND: The relationship between changes in proteinuria and myocardial infarction (MI) remains unclear in people with diabetes or pre-diabetes. We aimed to evaluate the predictive value and independent role of changes in proteinuria over a 2-year period in the incidence of MI in people with diabetes or pre-diabetes. METHODS: Based on the baseline and 2-year dipstick screening results from the Kailuan prospective cohort study, participants were divided into four categories: no proteinuria, remittent proteinuria, incident proteinuria, and persistent proteinuria...
August 15, 2017: Cardiovascular Diabetology
https://www.readbyqxmd.com/read/28802442/the-duration-perception-of-loading-applications-in-smartphone-effects-of-different-loading-types
#17
Wenguo Zhao, Yan Ge, Weina Qu, Kan Zhang, Xianghong Sun
The loading time of a smartphone application is an important issue, which affects the satisfaction of phone users. This study evaluated the effects of black loading screen (BLS) and animation loading screen (ALS) during application loading on users' duration perception and satisfaction. A total of 43 volunteers were enrolled. They were asked to complete several tasks by clicking the icons of each application, such as camera or message. The duration of loading time for each application was manipulated. The participants were asked to estimate the duration, evaluate the loading speed and their satisfaction...
November 2017: Applied Ergonomics
https://www.readbyqxmd.com/read/28802351/exome-sequencing-identifies-a-novel-missense-mutation-of-wfs1-as-the-cause-of-non-syndromic-low-frequency-hearing-loss-in-a-chinese-family
#18
Zhijie Niu, Yong Feng, Zhengmao Hu, Jiada Li, Jie Sun, Hongsheng Chen, Chufeng He, Xueping Wang, Lu Jiang, Yalan Liu, Xinzhang Cai, Lili Wang, Yuxiang Cai, Xuezhong Liu, Lingyun Mei
OBJECTIVE: Autosomal dominant non-syndromic low-frequency sensorineural hearing loss (LFSNHL) DFNA6/14/38 is an uncommon type of hearing loss that classically affects low frequencies of 2000 Hz and below, demonstrating an ascending configuration. The current study aimed to investigate the cause of LFSNHL in a five-generation Chinese family. METHODS: The phenotype of the Chinese family was characterized using audiologic testing and pedigree analysis. The combined approach of array screening and whole-exome sequencing was used to identify the disease-causing gene in this family...
September 2017: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/28802120/discovery-of-pentacyclic-triterpene-3%C3%AE-ester-derivatives-as-a-new-class-of-cholesterol-ester-transfer-protein-inhibitors
#19
Dongyin Chen, Xin Huang, Hongwen Zhou, Hanqiong Luo, Pengfei Wang, Yongzhi Chang, Xinyi He, Suiying Ni, Qingqing Shen, Guoshen Cao, Hongbin Sun, Xiaoan Wen, Jun Liu
A series of pentacyclic triterpene 3β-ester derivatives were designed, synthesized and evaluated as a new class of cholesteryl ester transfer protein (CETP) inhibitors for the treatment of dyslipidemia. In vitro screening assay showed that 5 out of 30 compounds displayed moderate inhibiting human CETP activity with IC50s less than 10 μM. Among them, compound 20 (IC50 = 2.3 μM) had the most potent biological activity, and effectively ameliorated plasma lipid levels of human adipose tissue specific CETP transgenic (ap2-CETPTg) mice and guinea pigs...
August 4, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28800007/comparison-of-epidermal-growth-factor-receptor-gene-mutations-identified-using-pleural-effusion-and-primary-tumor-tissue-samples-in-non-small-cell-lung-cancer
#20
Nan Liu, Rui-Ze Sun, Jiang Du, Qian-Ze Dong, Chui-Feng Fan, Qing-Chang Li, En-Hua Wang, Yang Liu
BACKGROUND: Although the use of pleural effusion samples for epidermal growth factor receptor (EGFR) testing in lung cancer is increasing, the accuracy rate and effectiveness of identifying EGFR mutations using these samples, rather than primary tumor tissue samples, is not established. MATERIALS AND METHODS: One hundred ninety-two advanced, non-small cell lung cancer patients were enrolled into this study. All patients had primary tumor tissue and corresponding pleural effusion samples, and we employed the Amplification Refractory Mutation System to detect EGFR gene mutations in these samples...
August 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
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