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https://www.readbyqxmd.com/read/28647809/left-ventricles-of-aging-athletes-better-untwisters-but-not-more-relaxed-during-exercise
#1
Claire Maufrais, G Doucende, T Rupp, M Dauzat, P Obert, S Nottin, I Schuster
OBJECTIVE: With an aging population and the increasing prevalence of heart failure with preserved ejection fraction, developing strategies to prevent diastolic dysfunction is crucial. Regular endurance training has been suggested to be one such strategy. However, the underlying mechanisms of training, including the effect on left ventricular (LV) untwist, which promotes LV filling, are unclear and studies exploring the heart during exercise in the aging heart are lacking. METHODS: Cardiopulmonary exercise testing with speckle tracking echocardiography was realized in male subjects: 16 young athletes (YA), 19 young controls (YC), 22 middle-aged athletes (MA) with a lifelong history of endurance training, and 20 middle-aged controls (MC)...
June 24, 2017: Clinical Research in Cardiology: Official Journal of the German Cardiac Society
https://www.readbyqxmd.com/read/28647734/mir-4673-modulates-paclitaxel-induced-oxidative-stress-and-loss-of-mitochondrial-membrane-potential-by-targeting-8-oxoguanine-dna-glycosylase-1
#2
Hai-Li Huang, Ya-Peng Shi, Hui-Juan He, Ya-Hong Wang, Ting Chen, La-Wei Yang, Teng Yang, Jie Chen, Jun Cao, Wei-Min Yao, Gang Liu
BACKGROUND: Our previous study identified a novel microRNA, miR-4673, which is upregulated in A549 cells exposed to paclitaxel (PTX). In this study, we investigated the role of miR-4673 in PTX-induced cytotoxicity. METHODS: 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide (MTT) assay, apoptosis assay, 5,5',6,6'-Tetrachloro-1,1',3,3'-tetraethyl-imidacarbocyanine iodide (JC-1) staining and 2',7'-Dichlorofluorescein (DCFH) staining were used to evaluate cell viability, apoptosis, mitochondrial membrane potential (MMP) loss and reactive oxygen species (ROS) generation in A549 and H1299 cells...
June 26, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28647261/removal-of-ammonium-ion-from-water-by-na-rich-birnessite-performance-and-mechanisms
#3
Ya Cheng, Tinglin Huang, Xinxin Shi, Gang Wen, Yuankui Sun
Na-rich birnessite (NRB) was synthesized by a simple synthesis method and used as a high-efficiency adsorbent for the removal of ammonium ion (NH4(+)) from aqueous solution. In order to demonstrate the adsorption performance of the synthesized material, the effects of contact time, pH, initial ammonium ion concentration, and temperature were investigated. Adsorption kinetics showed that the adsorption behavior followed the pseudo second-order kinetic model. The equilibrium adsorption data were fitted to Langmuir and Freundlich adsorption models and the model parameters were evaluated...
July 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28647192/genetic-diversity-and-phylogenetic-analysis-of-eg95-sequences-of-echinococcus-granulosus-implications-for-eg95-vaccine-application
#4
Wei Pan, De-Sheng Chen, Yun-Juan Lu, Hui-Wen Xu, Wen-Ting Hao, Ya-Wen Zhang, Su-Ping Qin, Kui-Yang Zheng, Ren-Xian Tang
OBJECTIVE: To analyse the genetic variability of EG95 sequences and provide guidance for EG95 vaccine application against Echinococcus granulosus (E. granulosus). METHODS: We analysed EG95 polymorphism by collecting total 97 different E. granulosus isolates from 12 different host species that originated from 10 different countries. Multiple sequence alignments and the homology were performed by Lasergene 1 (DNASTAR Inc., Madison, WI), and the phylogenetic analysis was performed by using MEGA5...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28647185/relationship-between-catecholamine-level-and-gene-polymorphism-of-%C3%AE-1-adrenergic-receptor-g1165c-in-children-with-ev71-infection-in-hand-foot-and-mouth-disease
#5
Zhi-Xian Lei, Bang-Tao Li, Hong-Ai Li, Xiao-Ming Li, Man-Fang Xie, Ting Huang, Qi Wang, Ya-Zhou Wang, Qiu-Yu Lin, Li-Rong Zhou, Nai-Chao Feng, Xin Li, Dao-Mou Zhu, Yuan-Ping Hai, Lan Cui, Ya-Qin Zhang, Zhi-Wen Liu, Shou-Ye Wu, Yong-Zhao Chen, Ke-Qing Zhu, Xiao-Jie He, Wei Xiang
OBJECTIVE: To investigate the relationship between the levels of plasma adrenaline and norepinephrine and gene polymorphism of β1 adrenergic receptor G1165C in children with enterovirus 71 (EV71) infection in hand foot and mouth disease (HFMD). METHODS: The polymerase chain reaction (PCR) was used to detect the expression of gene polymorphism of β1 adrenergic receptor G1165C in vitro. The levels of plasma adrenaline and norepinephrine were measured by enzyme-linked immunosorbent assay (ELISA)...
May 2017: Asian Pacific Journal of Tropical Medicine
https://www.readbyqxmd.com/read/28646916/prc1-contributes-to-tumorigenesis-of-lung-adenocarcinoma-in-association-with-the-wnt-%C3%AE-catenin-signaling-pathway
#6
Ping Zhan, Bin Zhang, Guang-Min Xi, Ying Wu, Hong-Bing Liu, Ya-Fang Liu, Wu-Jian Xu, Qing-Qing Zhu, Feng Cai, Ze-Jun Zhou, Ying-Ying Miu, Xiao-Xia Wang, Jia-Jia Jin, Qian Li, Li-Ping Qian, Tang-Feng Lv, Yong Song
BACKGROUND: Protein regulator of cytokinesis-1 (PRC1) belongs to the microtubule-associated proteins (MAPs) family, and is involved in cytokinesis. Recent investigations suggest PRC1 involvement in human carcinogenesis, including breast carcinoma, hepatocellular carcinoma and etc. However, whether PRC1 contributes to lung adenocarcinoma tumorigenesis remains unknown. METHODS: Quantitative reverse-transcription polymerase chain reaction (qRT-PCR), Western blotting and Immunohistochemical staining (IHC) were used to evaluate and contrast the PRC1 expression profile in lung adenocarcinoma and adjacent normal lung tissues...
June 24, 2017: Molecular Cancer
https://www.readbyqxmd.com/read/28646799/tracking-the-activity-of-the-anammox-damo-process-using-excitation-emission-matrix-eem-fluorescence-spectroscopy
#7
Yong-Ze Lu, Na Li, Zhao-Wei Ding, Liang Fu, Ya-Nan Bai, Guo-Ping Sheng, Raymond J Zeng
Coupling of anaerobic ammonium oxidation (anammox) and denitrifying anaerobic methane oxidation (DAMO) microorganisms in a hollow-fiber membrane biofilm reactor (HfMBR) is a potential strategy for simultaneous anaerobic removal of nitrogen and methane in wastewater streams. In these systems, effluents contain dissolved organic substances from anammox and DAMO microorganisms, but their characteristics and relationships have not been investigated. In the present study, excitation-emission matrix (EEM) fluorescence spectroscopy was used to characterize effluent dissolved organic matter (EfDOM) from an Anammox-DAMO HfMBR...
June 14, 2017: Water Research
https://www.readbyqxmd.com/read/28646786/preliminary-study-of-visual-perspective-in-mental-time-travel-in-schizophrenia
#8
Ya Wang, Yi Wang, Qing Zhao, Ji-Fang Cui, Xiao-Hong Hong, Raymond Ck Chan
This study explored specificity and visual perspective of mental time travel in schizophrenia. Fifteen patients with schizophrenia and 18 controls were recruited. Participants were asked to recall or imagine specific events according to cue words. Results showed that schizophrenia patients generated fewer specific events than controls, the recalled events were more specific than imagined events. Schizophrenia adopted less field perspective and more observer perspective than controls. These results suggested that patients with schizophrenia were impaired in mental time travel both in specificity and visual perspective...
June 17, 2017: Psychiatry Research
https://www.readbyqxmd.com/read/28646512/wmj-8-b-a-novel-hydroxamate-derivative-induces-mda-mb-231-breast-cancer-cell-death-via-shp-1-stat3-survivin-cascade
#9
Yu-Fan Chuang, Shiu-Wen Huang, Ya-Fen Hsu, Meng-Chieh Yu, George Ou, Wei-Jan Huang, Ming-Jen Hsu
BACKGROUND AND PURPOSE: Histone deacetylase (HDAC) inhibitors with broad-spectrum anti-tumor properties has been described and attracted lots of attention in the field of drug discovery. However, the underlying anti-tumor mechanisms of HDAC inhibitors remain incompletely understood. In this study, we aimed to characterize the underlying mechanisms of a novel hydroxamate-based HDAC inhibitor, WMJ-8-B, in inducing MDA-MB-231 breast cancer cell death. EXPERIMENTAL APPROACH: WMJ-8-B's effects on cell viability, cell cycle distribution, apoptosis, as well as signaling molecules modification and activation were analyzed by MTT assay, flowcytometric analysis, immunoblotting, reporter assay, ChIP analysis and siRNA strategy...
June 23, 2017: British Journal of Pharmacology
https://www.readbyqxmd.com/read/28645778/whole-genome-sequencing-of-monozygotic-twins-discordant-for-schizophrenia-indicates-multiple-genetic-risk-factors-for-schizophrenia
#10
Jinsong Tang, Yu Fan, Hong Li, Qun Xiang, Deng-Feng Zhang, Zongchang Li, Ying He, Yanhui Liao, Ya Wang, Fan He, Fengyu Zhang, Yin Yao Shugart, Chunyu Liu, Yanqing Tang, Raymond C K Chan, Chuan-Yue Wang, Yong-Gang Yao, Xiaogang Chen
Schizophrenia is a common disorder with a high heritability, but its genetic architecture is still elusive. We implemented whole-genome sequencing (WGS) analysis of 8 families with monozygotic (MZ) twin pairs discordant for schizophrenia to assess potential association of de novo mutations (DNMs) or inherited variants with susceptibility to schizophrenia. Eight nonsynonymous DNMs (including one splicing site) were identified and shared by twins, which were either located in previously reported schizophrenia risk genes (p...
June 8, 2017: Journal of Genetics and Genomics, Yi Chuan Xue Bao
https://www.readbyqxmd.com/read/28645647/racial-disparity-in-mycosis-fungoides-an-analysis-of-4495-cases-from-the-us-national-cancer-database
#11
Chang Su, Kevin A Nguyen, Harrison X Bai, Ya Cao, Yongguang Tao, Rong Xiao, Giorgos Karakousis, Paul J Zhang, Guiying Zhang
BACKGROUND: Studies have shown contradictory results regarding the survival outcomes among white, African American, and Asian patients with mycosis fungoides (MF). OBJECTIVE: To evaluate the survival outcomes among white, African American, and Asian patients with MF and to determine other prognostic factors of the disease. METHODS: The US National Cancer Database was used to identify patients with histologically confirmed MF from 2004 to 2014...
June 20, 2017: Journal of the American Academy of Dermatology
https://www.readbyqxmd.com/read/28645381/examining-dna-double-strand-break-repair-in-a-cell-cycle-dependent-manner
#12
Janapriya Saha, Shih-Ya Wang, Anthony J Davis
DNA double-strand breaks (DSBs) are deleterious DNA lesions that must be properly repaired to maintain genome stability. Agents, generated both exogenously (environmental radiation, dental X-rays, etc.) and endogenously (reactive oxygen species, DNA replication, V(D)J recombination, etc.), induce numerous DSBs every day. To counter these DSBs, there are two major repair pathways in mammalian cells, nonhomologous end joining (NHEJ) and homologous recombination (HR). NHEJ directly mediates the religation of the broken DNA molecule and is active in all phases of the cell cycle...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28645328/ocular-manifestations-as-first-signs-of-systemic-t-cell-lymphoma-in-two-cases
#13
Xiao Zhang, Xin-Shu Liu, Chan Zhao, Ya-Min Lai, Mei-Fen Zhang
BACKGROUND: Intraocular involvement of systemic T-cell lymphomas are uncommon and have been broadly regarded as markers of poor prognosis. We reported two cases of uveitis patients finally diagnosed as systemic T cell lymphoma. CASE PRESENTATION: Case one is a 19-year-old female presented with fever and liver dysfunction, and was diagnosed as EBV-associated chronic active hepatitis. Fourteen months later, she suffered from recurrent granulomatous anterior uveitis in both eyes, which failed to respond to steroid and immunosuppressant therapy...
June 23, 2017: BMC Ophthalmology
https://www.readbyqxmd.com/read/28645073/analysis-of-ldlr-variants-from-homozygous-fh-patients-carrying-multiple-mutations-in-the-ldlr-gene
#14
Long Jiang, Asier Benito-Vicente, Ling Tang, Aitor Etxebarria, Wei Cui, Kepa B Uribe, Xiao-Dong Pan, Helena Ostolaza, Shi-Wei Yang, Yu-Jie Zhou, Cesar Martin, Lu-Ya Wang
BACKGROUND AND AIMS: Familial hypercholesterolemia (FH) is an autosomal dominant disease with widespread global prevalence that partially accounts for the high prevalence of premature coronary heart disease. Although the majority of research on FH has focused on single heterozygous LDLR mutations, there have been limited reports of double LDLR mutations on the same chromosome. The aim of this study was to gain insight into the clinical consequences of the presence of multiple mutations in the LDLR gene...
June 8, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/28645008/effect-of-microrna-129-5p-targeting-hmgb1-rage-signaling-pathway-on-revascularization-in-a-collagenase-induced-intracerebral-hemorrhage-rat-model
#15
Xin-Long Ma, Shu-Ya Li, Feng Shang
BACKGROUND: This study aimed at exploring the effect of microRNA-129-5p (miR-129-5p) targeting high mobility group box-1 (HMGB1)-receptor for advanced glycation end-products (RAGE) signaling pathway on the revascularization in a collagenase-induced intracerebral hemorrhage (ICH) rat model. METHODS: OX26-pGFAP-IL, an immunoliposome expressing miR-129-5p was constructed. The collagenase-induced ICH rat models were successfully established by 96 Sprague Dawley (SD) rats, which were categorized into the sham group, ICH group, miR-129-5p group, negative control (NC) group, ethyl pyruvate (EP, an inhibitor of HMGB1) group and N-benzyl-4-chloro-N-cyclohe-xylbenzamide (FPS-ZM1, a RAGE receptor antagonist) group...
June 20, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28644873/circular-rna-expression-profiling-of-human-granulosa-cells-during-maternal-aging-reveals-novel-transcripts-associated-with-assisted-reproductive-technology-outcomes
#16
Jing Cheng, Jia Huang, Suzhen Yuan, Su Zhou, Wei Yan, Wei Shen, Yun Chen, Xi Xia, Aiyue Luo, Da Zhu, Shixuan Wang
Circular RNAs (circRNAs) are a unique class of endogenous RNAs which could be used as potential diagnostic and prognostic biomarkers of many diseases. Our study aimed to investigate circRNA profiles in human granulosa cells (GCs) during maternal aging and to uncover age-related circRNA variations that potentially reflect decreased oocyte competence. CircRNAs in GCs from in vitro fertilization (IVF) patients with young age (YA, ≤ 30 years) and advanced age (AA, ≥ 38 years) were profiled by microarray, and validated in 20 paired samples...
2017: PloS One
https://www.readbyqxmd.com/read/28643782/group-additivity-pourbaix-diagrams-advocate-thermodynamically-stable-nanoscale-clusters-in-aqueous-environments
#17
Lindsay A Wills, Xiaohui Qu, I-Ya Chang, Thomas J L Mustard, Douglas A Keszler, Kristin A Persson, Paul Ha-Yeon Cheong
The characterization of water-based corrosion, geochemical, environmental and catalytic processes rely on the accurate depiction of stable phases in a water environment. The process is aided by Pourbaix diagrams, which map the equilibrium solid and solution phases under varying conditions of pH and electrochemical potential. Recently, metastable or possibly stable nanometric aqueous clusters have been proposed as intermediate species in non-classical nucleation processes. Herein, we describe a Group Additivity approach to obtain Pourbaix diagrams with full consideration of multimeric cluster speciation from computations...
June 15, 2017: Nature Communications
https://www.readbyqxmd.com/read/28643114/synergistic-cardioprotective-effects-of-raav9-cyclina2-combined-with-fibrin-glue-in-rats-after-myocardial-infarction
#18
Wen Cao, Ya-Fei Chang, Ai-Chao Zhao, Bang-Dang Chen, Fen Liu, Yi-Tong Ma, Xiang Ma
The present study aimed to investigate the protective effects of rAAV9-CyclinA2 combined with fibrin glue (FG) in vivo in rats after myocardial infarction (MI). Ninety male Sprague-Dawley rats were randomized into 6 groups (15 in each group): sham, MI, rAAV9-green fluorescent protein (GFP) + MI, rAAV9-CyclinA2 + MI, FG + MI, and rAAV9-CyclinA2 + FG + MI. Packed virus (5 × 10(11)vg/ml) in 150 µl of normal saline or FG was injected into the infarcted myocardium at five locations in rAAV9-GFP + MI, rAAV9-CyclinA2 + MI, and rAAV9-CyclinA2 + FG + MI groups...
June 22, 2017: Journal of Molecular Histology
https://www.readbyqxmd.com/read/28642377/complete-genome-sequence-of-the-extremely-thermoacidophilic-archaeon-acidianus-manzaensis-yn-25
#19
Ya-Long Ma, Jin-Lan Xia, Yun Yang, Zhen-Yuan Nie, Hong-Chang Liu, Li-Zhu Liu
The complete genome of Acidianus manzaensis YN-25 consists of a chromosome of 2,687,463 bp, with a G+C content of 30.62% and 2,746 coding DNA sequences. This archaeon contains a series of specific genes involved in the oxidation of elemental sulfur and reduced inorganic sulfur compounds.
June 22, 2017: Genome Announcements
https://www.readbyqxmd.com/read/28642335/carcinoid-syndrome-and-costs-of-care-during-the-first-year-after-diagnosis-of-neuroendocrine-tumors-among-elderly-patients
#20
Chan Shen, Yiyi Chu, Daniel M Halperin, Arvind Dasari, Shouhao Zhou, Ying Xu, James C Yao, Ya-Chen Tina Shih
BACKGROUND: Neuroendocrine tumors (NETs) can secrete hormonal peptides that lead to additional symptom burdens. However, it is largely unknown whether and to what extent the additional symptom burdens translate into higher costs of care. This study aimed to examine the cost pattern of elderly NET patients during the first year of diagnosis, taking into account of the carcinoid syndrome status. METHODS: We used Surveillance, Epidemiology, and End Results Medicare data to identify elderly NET patients diagnosed between January 2003 and December 2011...
June 22, 2017: Oncologist
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