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https://www.readbyqxmd.com/read/28749565/melatonin-suppresses-platelet-activation-and-function-against-cardiac-ischemia-reperfusion-injury-via-ppar%C3%AE-fundc1-mitophagy-pathways
#1
Hao Zhou, Dandan Li, Pingjun Zhu, Shunying Hu, Nan Hu, Sai Ma, Ying Zhang, Tianwen Han, Jun Ren, Feng Cao, Yundai Chen
Platelet activation is a major (patho-) physiological mechanism that underlies ischemia/reperfusion (I/R) injury. In this study, we explored the molecular signals for platelet hyperactivity and investigated the beneficial effects of melatonin on platelet reactivity in response to I/R injury. After reperfusion, peroxisome proliferator-activated receptor γ (PPARγ) was progressively downregulated in patients with acute myocardial infarction undergoing coronary artery bypass grafting (CABG) surgery and in mice with I/R injury model...
July 27, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28749469/zinc-oxide-nanoparticles-harness-autophagy-to-induce-cell-death-in-lung-epithelial-cells
#2
Jun Zhang, Xia Qin, Bin Wang, Ge Xu, Zhexue Qin, Jian Wang, Lanxiang Wu, Xiangwu Ju, Diptiman D Bose, Feng Qiu, Honghao Zhou, Zhen Zou
Although zinc oxide nanoparticles (ZnONPs) are widely used, they have raised concerns of toxicity in humans. Previous studies have indicated that reactive oxygen species (ROS) and autophagy are involved in the cytotoxicity of ZnONPs, but the regulatory mechanisms between autophagy and ROS remain to be elucidated. Herein, we comprehensively investigated the regulatory mechanism of autophagy and the link between autophagy and ROS in ZnONPs-treated lung epithelial cells. We demonstrated that ZnONPs could induce autophagy, and this process could enhance the dissolution of ZnONPs in lysosomes to release zinc ions...
July 27, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28749252/the-role-of-dickkopf-1-as-a-potential-prognostic-marker-in-pancreatic-ductal-adenocarcinoma
#3
De-Jun Liu, Yue-Xia Xie, Xiao-Xing Liu, Yan-Miao Huo, Min-Wei Yang, Xue-Liang Fu, Wei Liu, Jian-Yu Yang, Jiao Li, Rong Hua, Pei-Feng Liu, Yong-Wei Sun, Jun-Feng Zhang
Dickkopf-1(DKK-1), the downstream target of β-catenin/T-cell factor, participates in a negative feedback loop in the Wnt signaling and reported as an important biomarker in many tumors. In this study, we analyzed the expression of DKK-1 in pancreatic ductal adenocarcinoma (PDAC) patients at both mRNA and protein levels. We used real-time PCR to detect the expression of DKK-1 in 32 PDAC and paired adjacent non-tumor tissues, results suggested that the expression of DKK-1 was increased in PDAC tissues. We found the similar results in the analysis of three independent microarray datasets...
July 27, 2017: Cell Cycle
https://www.readbyqxmd.com/read/28749189/improved-oral-bioavailability-for-lutein-by-nanocrystal-technology-formulation-development-in-vitro-and-in-vivo-evaluation
#4
Daoxiao Chang, Yanni Ma, Guoyu Cao, Jianhuan Wang, Xia Zhang, Jun Feng, Wenping Wang
Lutein is a kind of natural carotenoids possessing many pharmacological effects. The application of lutein was limited mainly due to its low oral bioavailability caused by poor aqueous solubility. Nanocrystal formulation of lutein was developed to improve the oral bioavailability in this study. The nanosuspension was prepared by the anti-solvent precipitation-ultrasonication method and optimized by Box-Behnken design, followed by freeze-drying to obtain lutein nanocrystals. The nanocrystals were characterized on their physical properties, in vitro dissolution and in vivo absorption performance...
July 27, 2017: Artificial Cells, Nanomedicine, and Biotechnology
https://www.readbyqxmd.com/read/28749179/analysis-of-microrna-expression-and-micronuclei-frequency-in-workers-exposed-to-vinyl-chloride-monomer-in-china
#5
Nan-Nan Feng, Yan Fang, Ya-Nan Zhang, Xiao-Wen Xu, Yong Li, Jin-Wei Wang, Yong-Liang Li, Paul Brandt-Rauf, Zhao-Lin Xia
AIM: To identify differently expressed miRNAs associated with vinyl chloride monomer (VCM) and micronuclei (MN) frequency. METHOD: In discovery stage, we used microarray to detect miRNAs expression in peripheral blood lymphocytes between six low and six high VCM-exposed workers grouped by medium cumulative exposure dose. Then we validated four miRNAs using real-time quantitative reverse transcription PCR (qRT-PCR) and detected the micronuclei frequencies using cytokinesis-block micronucleus assay in 94 VCM-exposed workers and 53 healthy control subjects...
July 27, 2017: Epigenomics
https://www.readbyqxmd.com/read/28748857/effect-of-high-fat-diet-induced-disorders-on-rat-with-endometrial-hyperplasia-and-adiponectin-system-in-circulation-and-uterus
#6
Chen-Guang Shang, Zhao-Hui Liu, Xiao-Hui Wang, Zong-Hao Feng, Yan Zhang
BACKGROUND: Epidemiologic and genetic studies suggest a link between insulin resistance (IR) and endometrial cancer, and endometrial hyperplasia (EH) is a precancerous stage of endometrial cancer. Adiponectin is an adipokine which previously shown to be a risk factor for endometrial cancer. The aim of the study was to develop a rat model of IR and EH and evaluate adiponectin system in circulation and uterus. METHODS: This study was a 46-week animal trial from February 2014 to January 2015...
August 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28748855/clinical-characteristics-and-endoscopic-endonasal-removal-of-foreign-bodies-within-sinuses-orbit-and-skull-base
#7
Yi-Hui Wen, Wei-Jian Hou, Wen-Bin Lei, Feng-Hong Chen, Xiao-Lin Zhu, Zhang-Feng Wang, Ren-Qiang Ma, Wei-Ping Wen
BACKGROUND: Foreign bodies within the sinuses, orbit, and skull base (FBSOS) are rare; hence, diagnosis and management guidelines are lacking. Endoscopic sinus surgery (ESS) removal is preferred because of the less invasiveness and minimal morbidity. This study was designed to summarize clinical experience with ESS management of FBSOS. METHODS: We retrospectively reviewed clinical manifestations, imaging findings, treatment, and outcomes in consecutive patients with ESS removal of FBSOS between 2004 and 2015 at a tertiary academic medical center...
August 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28748742/formation-of-magnesium-hydrosilicate-nanomaterials-and-its-applications-for-phosphate-ammonium-removal
#8
Rongtai Yu, Feng Liu, Hongqiang Ren, Jichun Wu, Xuxiang Zhang
Nanomaterials of magnesium hydrosilicate Mg3Si2O5(OH)4 were developed for phosphate and ammonium recovery from wastewater in virgin, which had the structure of diffuse interlamellar order, and synthesized under hydrothermal conditions at temperatures of 200°C for 36-72 h from mixtures of magnesite and zeolite as mineralizers. The amount of magnesium released has gone up to 48 mg/g by magnesium hydrosilicate, which was increased with the increase in the weight ratio of magnesite:zeolite. When magnesium hydrosilicate was used to adsorb phosphate and ammonium, electrostatic adsorption was not a dominant mechanism, the adsorbing capacity of phosphate was about 19 mg/g, and the simultaneous adsorbing capacity of ammonium was 7...
July 27, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28748618/corrigendum-localized-chemical-remodeling-for-live-cell-imaging-of-protein-specific-glycoform
#9
Jingjing Hui, Lei Bao, Siqiao Li, Yi Zhang, Yimei Feng, Lin Ding, Huangxian Ju
No abstract text is available yet for this article.
August 1, 2017: Angewandte Chemie
https://www.readbyqxmd.com/read/28747781/targeting-phosphorylation-of-stat3-delays-tumor-growth-in-hpv-negative-anal-squamous-cell-carcinoma-mouse-model
#10
Lin-Lin Bu, Yi-Cun Li, Guang-Tao Yu, Jian-Feng Liu, Wei-Wei Deng, Wen-Feng Zhang, Lu Zhang, Zhi-Jun Sun
Although conventional chemoradiotherapy is effective for most anal squamous cell carcinoma (ASCC) patients, HPV-negative ASCC patients respond poorly to this treatment and new therapeutic approach is required. Our group has previously established an HPV-negative ASCC mouse model and demonstrated that signal transducer and activation of transcription 3 (STAT3) is hyper-activated in the model. Here, we show that in vivo inhibition of STAT3 by S3I-201 effectively delays tumor growth in ASCC mouse model indicated by significantly smaller tumor size and burden in the treatment group compared with control group at the same point...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747753/corrigendum-protein-structure-guided-discovery-of-functional-mutations-across-19-cancer-types
#11
Beifang Niu, Adam D Scott, Sohini Sengupta, Matthew H Bailey, Prag Batra, Jie Ning, Matthew A Wyczalkowski, Wen-Wei Liang, Qunyuan Zhang, Michael D McLellan, Sam Q Sun, Piyush Tripathi, Carolyn Lou, Kai Ye, R Jay Mashl, John Wallis, Michael C Wendl, Feng Chen, Li Ding
No abstract text is available yet for this article.
July 27, 2017: Nature Genetics
https://www.readbyqxmd.com/read/28747654/analytical-investigation-of-nonreciprocal-response-in-1d-nonlinear-photonic-crystals
#12
Ronger Lu, Jiachu Jiang, Ruizhi Zhao, Xia Feng, Xuhao Hong, Chao Zhang, Yiqiang Qin, Yongyuan Zhu
The nonreciprocal response of the SHG process in 1D periodical nonlinear photonic crystals with a defect embedded has been theoretically studied by solving the nonlinear coupled equations. The nonreciprocal response has been deduced analytically with the solution of non-reciprocity parameters obtained. The result shows that as the non-reciprocity approaches 100%, the crystal length and the input power needed increase at a logarithmic rate. Any target nonreciprocal response can be reached in this structure by adjusting the structure parameters...
July 26, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28747554/kaempferol-induces-hepatocellular-carcinoma-cell-death-via-endoplasmic-reticulum-stress-chop-autophagy-signaling-pathway
#13
Haiqing Guo, Wei Lin, Xiangying Zhang, Xiaohui Zhang, Zhongjie Hu, Liying Li, Zhongping Duan, Jing Zhang, Feng Ren
Kaempferol is a flavonoid compound that has gained widespread attention due to its antitumor functions. However, the underlying mechanisms are still not clear. The present study investigated the effect of kaempferol on hepatocellular carcinoma and its underlying mechanisms. Kaempferol induced autophagy in a concentration- and time-dependent manner in HepG2 or Huh7 cells, which was evidenced by the significant increase of autophagy-related genes. Inhibition of autophagy pathway, through 3-methyladenine or Atg7 siRNA, strongly diminished kaempferol-induced apoptosis...
July 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28747472/disentangling-sources-of-variation-in-ssu-rdna-sequences-from-single-cell-analyses-of-ciliates-impact-of-copy-number-variation-and-experimental-error
#14
Chundi Wang, Tengteng Zhang, Yurui Wang, Laura A Katz, Feng Gao, Weibo Song
Small subunit ribosomal DNA (SSU rDNA) is widely used for phylogenetic inference, barcoding and other taxonomy-based analyses. Recent studies indicate that SSU rDNA of ciliates may have a high level of sequence variation within a single cell, which impacts the interpretation of rDNA-based surveys. However, sequence variation can come from a variety of sources including experimental errors, especially the mutations generated by DNA polymerase in PCR. In the present study, we explore the impact of four DNA polymerases on sequence variation and find that low-fidelity polymerases exaggerate the estimates of single-cell sequence variation...
July 26, 2017: Proceedings. Biological Sciences
https://www.readbyqxmd.com/read/28747429/the-hepatic-circadian-clock-fine-tunes-the-lipogenic-response-to-feeding-through-ror%C3%AE-%C3%AE
#15
Yuxiang Zhang, Romeo Papazyan, Manashree Damle, Bin Fang, Jennifer Jager, Dan Feng, Lindsey C Peed, Dongyin Guan, Zheng Sun, Mitchell A Lazar
Liver lipid metabolism is under intricate temporal control by both the circadian clock and feeding. The interplay between these two mechanisms is not clear. Here we show that liver-specific depletion of nuclear receptors RORα and RORγ, key components of the molecular circadian clock, up-regulate expression of lipogenic genes only under fed conditions at Zeitgeber time 22 (ZT22) but not under fasting conditions at ZT22 or ad libitum conditions at ZT10. RORα/γ controls circadian expression of Insig2, which keeps feeding-induced SREBP1c activation under check...
July 26, 2017: Genes & Development
https://www.readbyqxmd.com/read/28747223/return-of-chloroquine-sensitivity-to-africa-surveillance-of-african-plasmodium-falciparum-chloroquine-resistance-through-malaria-imported-to-china
#16
Feng Lu, Meihua Zhang, Richard L Culleton, Sui Xu, Jianxia Tang, Huayun Zhou, Guoding Zhu, Yaping Gu, Chao Zhang, Yaobao Liu, Weiming Wang, Yuanyuan Cao, Julin Li, Xinlong He, Jun Cao, Qi Gao
BACKGROUND: Chloroquine (CQ) was the cornerstone of anti-malarial treatment in Africa for almost 50 years, but has been widely withdrawn due to the emergence and spread of resistance. Recent reports have suggested that CQ-susceptibility may return following the cessation of CQ usage. Here, we monitor CQ sensitivity and determine the prevalence of genetic polymorphisms in the CQ resistance transporter gene (pfcrt) of Plasmodium falciparum isolates recently imported from Africa to China...
July 26, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28747179/new-insights-into-the-roles-of-cucumber-tir1-homologs-and-mir393-in-regulating-fruit-seed-set-development-and-leaf-morphogenesis
#17
Jian Xu, Ji Li, Li Cui, Ting Zhang, Zhe Wu, Pin-Yu Zhu, Yong-Jiao Meng, Kai-Jing Zhang, Xia-Qing Yu, Qun-Feng Lou, Jin-Feng Chen
BACKGROUND: TIR1-like proteins act as auxin receptors and play essential roles in auxin-mediated plant development processes. The number of auxin receptor family members varies among species. While the functions of auxin receptor genes have been widely studied in Arabidopsis, the distinct functions of cucumber (Cucumis sativus L.) auxin receptors remains poorly understood. To further our understanding of their potential role in cucumber development, two TIR1-like genes were identified and designated CsTIR1 and CsAFB2...
July 26, 2017: BMC Plant Biology
https://www.readbyqxmd.com/read/28746179/the-efficacy-and-safety-of-dl-3n-butylphthalide-on-progressive-cerebral-infarction-a-randomized-controlled-strobe-study
#18
Chenhao Zhang, Shuqin Zhao, Yanjing Zang, Fang Gu, Shufang Mao, Shanshan Feng, Lei Hu, Chunliang Zhang
Progressive cerebral infarction (PCI) is associated with high rates of mortality and disability. Many studies have shown that Dl-3n-butylphthalide (NBP) is effective against acute ischemic stroke. The administration of NBP can result in an increased number of capillaries in the ischemic region, promote the establishment of collateral circulation, protect the mitochondria, and narrow the infarction area, among other effects. In the present study, we evaluated the efficacy and safety of NBP for the treatment of PCI...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28746047/genetic-variation-and-forensic-characteristic-analysis-of-25-strs-of-a-novel-fluorescence-co-amplification-system-in-chinese-southern-shaanxi-han-population
#19
Yao-Shun Liu, Jian-Gang Chen, Ting Mei, Yu-Xin Guo, Hao-Tian Meng, Jian-Fei Li, Yuan-Yuan Wei, Xiao-Ye Jin, Bo-Feng Zhu, Li-Ping Zhang
We analyzed the genetic polymorphisms of 15 autosomal and 10 Y-chromosomal STR loci in 214 individuals of Han population from Southern Shaanxi of China and studied the genetic relationships between Southern Shaanxi Han and other populations. We observed a total of 150 alleles at 15 autosomal STR loci with the corresponding allelic frequencies ranging from 0.0023 to 0.5210, and the combined power of discrimination and exclusion for the 15 autosomal STR loci were 0.99999999999999998866 and 0.999998491, respectively...
July 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28745483/postsynthetic-modification-of-zif-90-for-potential-targeted-co-delivery-of-two-anticancer-drugs
#20
Feng-Ming Zhang, Hong Dong, Xin Zhang, Xiaojun Sun, Ming Liu, Dou-Dou Yang, Xin Liu, Jinzhi Wei
Combination therapy has been regarded as a promising strategy for cancer treatment due to the enhanced anticancer efficacy by blocking multiple drug resistance pathways. In this work, a drug carrier based on nanoscale ZIF-90 for the co-delivery of two anticancer drugs has been synthesized by covalent modifying doxorubicin (DOX) to the surface of ZIF-90 via Schiff base reaction of amino group in DOX and aldehyde group of imidazole-2-carboxaldehyde (ICA) ligand, and encapsulating 5-fluorouracil (5-FU) into the pores of the framework...
July 26, 2017: ACS Applied Materials & Interfaces
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