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Jian-Xin Zhou

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https://www.readbyqxmd.com/read/28630256/the-small-gtpase-rac1-contributes-to-extinction-of-aversive-memories-of-drug-withdrawal-by-facilitating-gabaa-receptor-endocytosis-in-the-vmpfc
#1
Wei-Sheng Wang, Yun-Yue Ju, Qi-Xin Zhou, Jian-Xin Tang, Meng Li, Lei Zhang, Shuo Kang, Zhong-Guo Chen, Yu-Jun Wang, Hui Ji, Yu-Qiang Ding, Lin Xu, Jing-Gen Liu
Extinction of aversive memories has been a major concern in neuropsychiatric disorders such as anxiety disorders and drug addiction. However, the mechanisms underlying extinction of aversive memories are not fully understood. Here, we report that extinction of conditioned place aversion (CPA) to naloxone-precipitated opiate withdrawal in male rats activates Rho GTPase Rac1 in the ventromedial prefrontal cortex (vmPFC) in a BDNF-dependent manner, which determines GABAA receptor (GABAAR) endocytosis via triggering synaptic translocation of activity-regulated cytoskeleton-associated protein (Arc) through facilitating actin polymerization...
June 19, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28627270/novel-benzopyran-derivatives-and-their-therapeutic-applications-a-patent-review-2009-2016
#2
Cheng Xiu, Zhou Hua, Bao Sheng Xiao, Wen Jian Tang, Hai Pin Zhou, Xin Hua Liu
The benzopyran derivatives present a wide variety of biological activity and behaviour. At the same time the benzopyran derivatives support their use as therapeutic agents for multiple diseases. Their structural characteristics correlated to physicochemical properties seem to define the extent of the biological activity. Areas covered: This review summarizes new patents published on new benzopyran derivatives from 2009 to 2016. Expert opinion: Many benzopyran derivatives have vivo/vitro biological responses...
June 19, 2017: Expert Opinion on Therapeutic Patents
https://www.readbyqxmd.com/read/28625730/terpenoids-from-curcuma-wenyujin-increased-glucose-consumption-on-hepg2-cells
#3
Chang-Xin Zhou, Li-Sha Zhang, Fei-Fei Chen, Hao-Shu Wu, Jian-Xia Mo, Li-She Gan
Thirty four terpenoids, including two new cadinane-type sesquiterpenoids containing conjugated aromatic-ketone moieties, curcujinone A (1) and curcujinone B (2), were isolated from 95% ethanol extract of the root tubers of Curcuma wenyujin. Their structures were determined by spectroscopic methods, especially 2D NMR and HRMS techniques. The relative and absolute configurations of 1 and 2 were identified by quantum chemical DFT and TDDFT calculations of the (13)C NMR chemical shifts, ECD spectra, and specific optical rotations...
June 15, 2017: Fitoterapia
https://www.readbyqxmd.com/read/28621442/dendritic-cell-based-immunotherapy-evokes-potent-anti-tumor-immune-responses-in-cd105-human-renal-cancer-stem-cells
#4
Xiao-Fei Zhang, De-Sheng Weng, Ke Pan, Zi-Qi Zhou, Qiu-Zhong Pan, Jing-Jing Zhao, Yan Tang, Shan-Shan Jiang, Chang-Long Chen, Yong-Qiang Li, Hong-Xia Zhang, Alfred E Chang, Max S Wicha, Yi-Xin Zeng, Qiao Li, Jian-Chuan Xia
Cancer stem cells (CSCs) are responsible for tumor initiation, progression, and resistance to therapeutic agents; they are usually less sensitive to conventional cancer therapies, and could cause tumor relapse. An ideal therapeutic strategy would therefore be to selectively target and destroy CSCs, thereby preventing tumor relapse. The aim of the present study was to evaluate the effectiveness of dendritic cells (DCs) pulsed with antigen derived from CD105+ human renal cell carcinoma(RCC) CSCs against renal cancer cells in vitro and in vivo...
June 16, 2017: Molecular Carcinogenesis
https://www.readbyqxmd.com/read/28620143/meta-analysis-of-differences-in-constant-murley-scores-for-three-mid-shaft-clavicular-fracture-treatments
#5
Wei Jiang, Hua Wang, Yu-Sheng Li, Tian-Jian Zhou, Xin-Jia Hu
There is no consensus on the optimal treatment for mid-shaft clavicular fracture. We conducted a meta-analysis to compare the effectiveness of non-operative treatment, plate fixation, and intramedullary pin fixation in terms of the Constant-Murley Score (CMS) for treatment of mid-shaft clavicular fracture. Comprehensive search of the Embase, Cochrane Library and PubMed was conducted to retrieve relevant randomized controlled trials (RCTs). A random-effect network meta-analysis was conducted within a Bayesian framework using Markov Chain Monte Carlo (MCMC) in OpenBUGS 3...
June 12, 2017: Oncotarget
https://www.readbyqxmd.com/read/28618271/lck-hck-fgr-mediated-tyrosine-phosphorylation-negatively-regulates-tbk1-to-restrain-innate-antiviral-responses
#6
Shengduo Liu, Shasha Chen, Xinran Li, Shiying Wu, Qian Zhang, Qiuheng Jin, Lin Hu, Ruyuan Zhou, Zhengyang Yu, Fansen Meng, Siwen Wang, Yaowei Huang, Sheng Ye, Li Shen, Zongping Xia, Jian Zou, Xin-Hua Feng, Pinglong Xu
Cytosolic nucleic acid sensing elicits interferon production for primary antiviral defense through cascades controlled by protein ubiquitination and Ser/Thr phosphorylation. Here we show that TBK1, a core kinase of antiviral pathways, is inhibited by tyrosine phosphorylation. The Src family kinases (SFKs) Lck, Hck, and Fgr directly phosphorylate TBK1 at Tyr354/394, to prevent TBK1 dimerization and activation. Accordingly, antiviral sensing and resistance were substantially enhanced in Lck/Hck/Fgr triple knockout cells and ectopic expression of Lck/Hck/Fgr dampened the antiviral defense in cells and zebrafish...
June 14, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28609011/the-highly-pathogenic-h5n1-influenza-a-virus-down-regulated-several-cellular-micrornas-which-target-viral-genome
#7
Rong Wang, Ying-Ying Zhang, Jian-Sheng Lu, Bing-Hui Xia, Zhi-Xin Yang, Xu-Dong Zhu, Xiao-Wei Zhou, Pei-Tang Huang
Higher and prolonged viral replication is critical for the increased pathogenesis of the highly pathogenic avian influenza (HPAI) subtype of H5N1 influenza A virus (IAV) over the lowly pathogenic H1N1 IAV strain. Recent studies highlighted the considerable roles of cellular miRNAs in host defence against viral infection. In this report, using a 3'UTR reporter system, we identified several putative miRNA target sites buried in the H5N1 virus genome. We found two miRNAs, miR-584-5p and miR-1249, that matched with the PB2 binding sequence...
June 13, 2017: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28576980/tlr9-regulates-the-nf-%C3%AE%C2%BAb-nlrp3-il-1%C3%AE-pathway-negatively-in-salmonella-induced-nkg2d-mediated-intestinal-inflammation
#8
Yan Li, Meifang Liu, Zengyan Zuo, Jing Liu, Xin Yu, Yun Guan, Renhui Zhan, Qiuju Han, Jian Zhang, Rongbin Zhou, Rui Sun, Zhigang Tian, Cai Zhang
TLRs are key sensors for conserved bacterial molecules and play a critical role in host defense against invading pathogens. Although the roles of TLRs in defense against pathogen infection and in maintaining gut immune homeostasis have been studied, the precise functions of different TLRs in response to pathogen infection in the gut remain elusive. The present study investigated the role of TLR signaling in defense against the Gram-negative bacterial pathogen Salmonella typhimurium The results indicated that TLR9-deficient mice were more susceptible to S...
June 2, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28569170/the-developmental-regulator-pkl-is-required-to-maintain-correct-dna-methylation-patterns-at-rna-directed-dna-methylation-loci
#9
Rong Yang, Zhimin Zheng, Qing Chen, Lan Yang, Huan Huang, Daisuke Miki, Wenwu Wu, Liang Zeng, Jun Liu, Jin-Xing Zhou, Joe Ogas, Jian-Kang Zhu, Xin-Jian He, Heng Zhang
BACKGROUND: The chromodomain helicase DNA-binding family of ATP-dependent chromatin remodeling factors play essential roles during eukaryote growth and development. They are recruited by specific transcription factors and regulate the expression of developmentally important genes. Here, we describe an unexpected role in non-coding RNA-directed DNA methylation in Arabidopsis thaliana. RESULTS: Through forward genetic screens we identified PKL, a gene required for developmental regulation in plants, as a factor promoting transcriptional silencing at the transgenic RD29A promoter...
May 31, 2017: Genome Biology
https://www.readbyqxmd.com/read/28562063/asymmetric-hydrogenation-of-tetrasubstituted-cyclic-enones-to-chiral-cycloalkanols-with-three-contiguous-stereocenters
#10
Yun-Ting Liu, Ji-Qiang Chen, Lin-Ping Li, Xin-Yang Shao, Jian-Hua Xie, Qi-Lin Zhou
A highly efficient iridium-catalyzed asymmetric hydrogenation of tetrasubstituted cyclic enones has been developed for the enantioselective synthesis of chiral cycloalkanols with three contiguous stereocenters. The C═O and C═C bonds of the enone substrates were hydrogenated sequentially in one pot with excellent enantioselectivity (92 to >99% ee) and diastereoselectivity (dr 95:5 to >99:1). The reaction provided a practical approach to all of the stereoisomers of the antiulcer drug rosaprostol.
May 31, 2017: Organic Letters
https://www.readbyqxmd.com/read/28550197/viral-rna-unprimed-rig-i-restrains-stat3-activation-in-the-modulation-of-regulatory-t-cell-th17-cell-balance
#11
Hui Yang, He-Zhou Guo, Xian-Yang Li, Jian Lin, Wu Zhang, Jun-Mei Zhao, Hong-Xin Zhang, Sai-Juan Chen, Zhu Chen, Jiang Zhu
Innate immunity activation by viral RNA-primed retinoid acid inducible gene-I (Rig-I) in CD4(+) T cells antagonizes TGFβ signaling to suppress the differentiation of regulatory T cells (Tregs). However, how viral RNA-unliganded Rig-I (apo-Rig-I) modulates Treg generation remains unclear. In this article, we show that, in the absence of viral infection, Treg differentiation of Rig-I(-/-) CD4(+) T cells was compromised, in the presence of increased generation of Th17 cells and overactivation of Stat3, a critical regulator tilting the Treg/Th17 cell balance...
May 26, 2017: Journal of Immunology: Official Journal of the American Association of Immunologists
https://www.readbyqxmd.com/read/28548825/nepetaefolins-a-j-cytotoxic-chinane-and-abietane-diterpenoids-from-caryopteris-nepetaefolia
#12
Cheng-Gang Zhang, Gui-Xin Chou, Xu-Dong Mao, Qing-Shan Yang, Jian-Li Zhou
Nepetaefolins A-J (1-10) and seven known compounds were isolated from the whole plant of Caryopteris nepetaefolia. The absolute configurations of 1-3 were determined from single-crystal X-ray diffraction and spectroscopic data. Compounds 6 and 7, with IC50 values of 6.3-9.0 μM, showed higher cytotoxicity than paclitaxel in one non-small-cell lung cancer, patient-derived xenograft (PDX) model when tested using PDX models and the adenosine triphosphate-tumor chemosensitivity assay (ATP-TCA).
May 26, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28525480/a-new-entrance-technique-for-c2-pedicle-screw-placement-and-the-use-in-patients-with-atlantoaxial-instability
#13
Jia-Ming Liu, Jian Jiang, Zhi-Li Liu, Xin-Hua Long, Wen-Zhao Chen, Yang Zhou, Song Gao, Lai-Chang He, Shan-Hu Huang
STUDY DESIGN: A prospective study and a technique note. OBJECTIVES: To introduce a new entrance technique for C2 pedicle screw placement and to measure the related linear and angular parameters about the entrance point on computed tomography (CT) images. The safety of this technique for patients with atlantoaxial instability was also evaluated. BACKGROUND DATA: Although earlier studies have introduced different methods for C2 pedicle screw placement, the entry points and the angular parameters may be variable...
June 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28524826/prognostic-analysis-of-102-patients-with-synchronous-colorectal-cancer-and-liver-metastases-treated-with-simultaneous-resection
#14
Ye-Fan Zhang, Rui Mao, Xiao Chen, Jian-Jun Zhao, Xin-Yu Bi, Zhi-Yu Li, Jian-Guo Zhou, Hong Zhao, Zhen Huang, Yong-Kun Sun, Jian-Qiang Cai
BACKGROUND: The liver is the most common site for colorectal cancer (CRC) metastases. Their removal is a critical and challenging aspect of CRC treatment. We investigated the prognosis and risk factors of patients with CRC and liver metastases (CRCLM) who underwent simultaneous resections for both lesions. METHODS: From January 2009 to August 2016, 102 patients with CRCLM received simultaneous resections of CRCLM at our hospital. We retrospectively analyzed their clinical data and analyzed their outcomes...
June 5, 2017: Chinese Medical Journal
https://www.readbyqxmd.com/read/28514724/sirna-mediated-inactivation-of-her3-improves-the-antitumour-activity-and-sensitivity-of-gefitinib-in-gastric-cancer-cells
#15
Heng-Heng Yuan, Ying-Nan Yang, Jian-Hua Zhou, Yan-Jing Li, Li-Ying Wang, Jun-Wei Qin, Tao Liu, Zhen-Zhen Li, Qing-Xin Zhou, Xiao-Li Wei, Ting-Ting Zhang, Peng Huang, Wen-Jie Zhang, Lei Liu, Xiao-Xue Du, Yu Han
The human EGFR family consists of four type-1 transmembrane tyrosine kinase receptors: HER1 (EGFR, ErbB1), HER2 (Neu, ErbB2), HER3 (ErbB3), and HER4 (ErbB4). HER3 can dimerize with EGFR, HER2 and even c-Met and likely plays a central role in the response to EGFR-targeted therapy. Because HER3 lacks significant kinase activity and cannot be inhibited by tyrosine kinase inhibitors, neutralizing antibodies and alternative inhibitors of HER3 have been sought as cancer therapeutics. Here, we describe the stable suppression of HER3 mRNA and protein using siRNA...
April 29, 2017: Oncotarget
https://www.readbyqxmd.com/read/28512499/neuroprotective-effect-of-fagopyrum-dibotrys-extract-against-alzheimer-s-disease
#16
Chen Liang, Jian-Ping Yuan, Tao Ding, Lv Yan, Lu Ling, Xin-Fu Zhou, Yue-Qin Zeng
Accumulated evidence suggests that polyphenolic antioxidants present in herbs play important roles in prevention of AD; the molecular mechanisms behind neuroprotective actions rely on the phenols through different effects on the amyloid-aggregation pathway. Fagopyrum dibotrys is a traditional herbal medicine which contains high quantity phenols. In present study, we investigate the beneficial pharmacological actions of Fagopyrum dibotrys extract in the APP/PS1 transgenic mouse mode; meanwhile, effects of the FDE on the fibrillation and cytotoxicity of Aβ peptide were evaluated in vitro...
2017: Evidence-based Complementary and Alternative Medicine: ECAM
https://www.readbyqxmd.com/read/28508666/biotransformation-of-total-coumarins-of-radix-glehniae-by-lecanicillium-attenuatum-w-1-9
#17
Qi Dong, Ye Yuan, Yue Zhou, Yi-Xin Zhang, Jian-Peng Zhang, Hao-Bing Yu, Bing-Hua Jiao, Xiao-Yu Liu, Xiao-Ling Lu
The biotransformation of total coumarins of Radix Glehniae by Lecanicillium attenuatum W-1-9 yielded three new products, lecaniside A (1), lecaniside B (2), and lecaniside C (3). The chemical structures of these metabolites were elucidated based on extensive spectral data, including 2D NMR and HRMS. The hydrogenation, dealkylation, glycosylation, and O-methylation reactions of these metabolites were observed in the present study. In the in vitro assays, compound 1 displayed a little PTP1B inhibitory activity...
May 16, 2017: Journal of Asian Natural Products Research
https://www.readbyqxmd.com/read/28504707/regulation-of-mitochondrial-biogenesis-in-erythropoiesis-by-mtorc1-mediated-protein%C3%A2-translation
#18
Xin Liu, Yuannyu Zhang, Min Ni, Hui Cao, Robert A J Signer, Dan Li, Mushan Li, Zhimin Gu, Zeping Hu, Kathryn E Dickerson, Samuel E Weinberg, Navdeep S Chandel, Ralph J DeBerardinis, Feng Zhou, Zhen Shao, Jian Xu
Advances in genomic profiling present new challenges of explaining how changes in DNA and RNA are translated into proteins linking genotype to phenotype. Here we compare the genome-scale proteomic and transcriptomic changes in human primary haematopoietic stem/progenitor cells and erythroid progenitors, and uncover pathways related to mitochondrial biogenesis enhanced through post-transcriptional regulation. Mitochondrial factors including TFAM and PHB2 are selectively regulated through protein translation during erythroid specification...
June 2017: Nature Cell Biology
https://www.readbyqxmd.com/read/28502159/lpl-gene-pvu-ii-polymorphism-and-hypertriglyceridemia-a-meta-analysis-involving-1-640-subjects
#19
Yan-Yan Li, Yan-Hong Zhou, Ge Gong, Hong-Yu Geng, Xin-Xing Yang, Xiang-Ming Wang, Chuan-Wei Zhou, Jian Xu, Yun Qian
Background/Aims: Although lipoprotein lipase (LPL) gene Pvu II polymorphism has been associated with an increased risk of hypertriglyceridemia (HT), there is no clear consensus within the scientific community. Methods: A meta-analysis of 1,640 subjects from six individual studies was conducted to better elucidate the potential relationship between the LPL gene Pvu II polymorphism and HT within the Chinese population. Pooled odds ratios (ORs) and their corresponding 95% confidence intervals (CIs) were evaluated by using fixed effect models...
May 16, 2017: Korean Journal of Internal Medicine
https://www.readbyqxmd.com/read/28485318/a-national-multicenter-survey-on-management-of-pain-agitation-and-delirium-in-intensive-care-units-in-china
#20
Jing Wang, Zhi-Yong Peng, Wen-Hai Zhou, Bo Hu, Xin Rao, Jian-Guo Li
BACKGROUND: The management of pain, agitation, and delirium (PAD) in Intensive Care Unit (ICU) is beneficial for patients and makes it widely applied in clinical practice. Previous studies showed that the clinical practice of PAD in ICU was improving; yet relatively little information is available in China. This study aimed to investigate the practice of PAD in ICUs in China. METHODS: A multicenter, nationwide survey was conducted using a clinician-directed questionnaire from September 19 to December 18, 2016...
May 20, 2017: Chinese Medical Journal
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