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https://www.readbyqxmd.com/read/28550390/clinical-patterns-and-characteristics-of-ankylosing-spondylitis-in-china
#1
Qiaoxia Qian, Xia Xu, Hongjun He, Hengdong Ji, Hui Zhang, Yue Ding, Sheng-Ming Dai, Yaohong Zou, Qi Zhu, Chengde Yang, Shuang Ye, Lindi Jiang, Jian-Ping Tang, Qiang Tong, Dongyi He, Dongbao Zhao, Yuan Li, Yanyun Ma, Jingru Zhou, Ziyu Yuan, Juan Zhang, Li Jin, Xiaodong Zhou, John D Reveille, Hejian Zou, Jiucun Wang
The study aimed to determine whether unique clinical patterns of AS may exist in China, specifically to explore the different clinical manifestations caused by gender, HLA-B27 status, and age at disease onset. The multicenter cross-sectional survey was conducted and 1251 patients were enrolled across China, representing a broad spectrum of Chinese AS patients. The mean age at onset and diagnosis were 29.2 (11.4) and 33.5 (12.6) years, respectively. The male/female ratio was 2.7:1. Acute anterior uveitis (AAU) was experienced in 10...
May 27, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28548850/highly-enantioselective-copper-and-iron-catalyzed-intramolecular-cyclopropanation-of-indoles
#2
Huan Xu, Li Yi-Pan, Yan Cai, Guo-Peng Wang, Shou-Fei Zhu, Qi-Lin Zhou
We report the first intramolecular enantioselective cyclopropa-nation of indoles, which was accomplished in good to high yield (up to 94%) with excellent enantioselectivity (up to >99.9% ee) by using copper or iron complexes of chiral spiro bisoxa-zolines as catalysts. This reaction is a straightforward, efficient method for constructing polycyclic compounds with an all-carbon quaternary chiral center at the 3-position of the indole skeleton, a core structure shared by numerous natural products and bioactive compounds...
May 26, 2017: Journal of the American Chemical Society
https://www.readbyqxmd.com/read/28546857/chloroquine-inhibits-ca-2-permeable-ion-channels-mediated-ca-2-signaling-in-primary-b-lymphocytes
#3
Yi-Fan Wu, Ping Zhao, Xi Luo, Jin-Chao Xu, Lu Xue, Qi Zhou, Mingrui Xiong, Jinhua Shen, Yong-Bo Peng, Meng-Fei Yu, Weiwei Chen, Liqun Ma, Qing-Hua Liu
BACKGROUND: Chloroquine, a bitter tastant, inhibits Ca(2+) signaling, resulting in suppression of B cell activation; however, the inhibitory mechanism remains unclear. RESULTS: In this study, thapsigargin (TG), but not caffeine, induced sustained intracellular Ca(2+) increases in mouse splenic primary B lymphocytes, which were markedly inhibited by chloroquine. Under Ca(2+)-free conditions, TG elicited transient Ca(2+) increases, which additionally elevated upon the restoration of 2 mM Ca(2+)...
2017: Cell & Bioscience
https://www.readbyqxmd.com/read/28546535/a-novel-prkag2-mutation-in-a-chinese-family-with-cardiac-hypertrophy-and-ventricular-pre-excitation
#4
Kun-Qi Yang, Chao-Xia Lu, Ying Zhang, Yan-Kun Yang, Jia-Cheng Li, Tian Lan, Xu Meng, Peng Fan, Tao Tian, Lin-Ping Wang, Ya-Xin Liu, Xue Zhang, Xian-Liang Zhou
PRKAG2 syndrome is a rare autosomal dominant inherited disorder that is characterized by cardiac hypertrophy, ventricular pre-excitation and conduction system abnormalities. There is little knowledge in cardiovascular magnetic resonance (CMR) characteristics of PRKAG2 cardiomyopathy. This study investigated the genetic defect in a three-generation Chinese family with cardiac hypertrophy and ventricular pre-excitation using whole-exome sequencing. A novel missense mutation, c.1006 G > T (p.V336L), was identified in PRKAG2...
May 25, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28544438/genome-wide-identification-characterization-and-evolution-of-cuticular-protein-genes-in-the-malaria-vector-anopheles-sinensis-diptera-culicidae
#5
Bai-Qi Liu, Liang Qiao, Qi-Yi He, Yong Zhou, Shuang Ren, Bin Chen
Thirteen cuticular proteins (CPs) families have been recognized in arthropods. In this study, 250 Anopheles sinensis CP genes were identified and named based on genome and transcriptome sequences. They were classified into 10 families based on motifs and phylogenetic analyses. In 11 other insect species, 9 had CP numbers > 150 while Apis mellifera and Tribolium castaneum had CP numbers less than 52. The CPs of 8 species occupied > 1.4% of the total genomic gene number whereas in 3 species the CPs occupied < 1%...
May 24, 2017: Insect Science
https://www.readbyqxmd.com/read/28543298/synthesis-and-preclinical-pharmacokinetic-study-of-dha-10-a-novel-potential-antifungal-pogostone-analogue
#6
Ming Liu, Yanfen Zhou, Jianwei Zhu, Bo Ma, Zheng Fang, Qi Zhang
OBJECTIVES: The emergence of fungal disease calls for the urgency of development of novel drug. In this study, we developed a novel pogostone analogue, DHA-10 and investigated its preclinical pharmacokinetics, tissue distribution, excretion and protein binding rate in rats. METHODS: DHA-10 was synthesized with dehydroacetic acid (DHA) as the starting material and the structure confirmed by NMR and HRMS. The LC-MS/MS was applied to quantitative analysis of DHA-10 concentrations in the biological samples...
May 23, 2017: Journal of Pharmacy and Pharmacology
https://www.readbyqxmd.com/read/28543284/in-utero-oxcarbazepine-exposure-and-neonatal-abstinence-syndrome-case-report-and-brief-review-of-the-literature
#7
Chao-Yang Chen, Xing Li, Ling-Yue Ma, Peng-Hui Wu, Ying Zhou, Qi Feng, Yi-Min Cui
Oxcarbazepine is a second-generation antiepileptic drug that is used to treat partial seizures. Although it has been increasingly used in pregnant women, its fetal safety has not been fully validated. We describe a 12-hour-old neonate who developed neonatal abstinence syndrome (NAS) following intrauterine exposure to oxcarbazepine. The neonate was born by cesarean section to a mother who took oxcarbazepine 300 mg/day for treatment of seizures throughout her pregnancy. Approximately 12 hours after birth, the infant developed paroxysmal jitter, which mainly presented as increased excitability, irritability, limb shaking, and increased muscle tone...
May 20, 2017: Pharmacotherapy
https://www.readbyqxmd.com/read/28541654/stable-1t-mose2-and-carbon-nanotubes-hybridized-flexible-film-binder-free-and-high-performance-li-ion-anode
#8
Ting Xiang, Shi Tao, Weiyu Xu, Qi Fang, Chuanqiang Wu, Daobin Liu, Yu Zhou, Adnan Khalil, Zahir Muhammad, Wangsheng Chu, Zhonghui Wang, Hongfa Xiang, Qin Liu, Li Song
Two-dimensional stable metallic 1T-MoSe2 with expanded interlayer spacing of 10.0 Å in-situ grown on SWCNTs film is fabricated via a one-step solvothermal method. Combined with X-ray absorption near-edge structures, our characterizations reveals that such 1T-MoSe2 and single-walled carbon nanotubes (abbreviated as 1T-MoSe2/SWCNTs) hybridized structure can provide strong electrical and chemical coupling between 1T-MoSe2 nanosheets and SWCNTs film in a form of C-O-Mo bonding, which is significantly benefiting a high-efficiency electron/ion transport pathway and structural stability, thus directly enabling high performance lithium-storage properties...
May 25, 2017: ACS Nano
https://www.readbyqxmd.com/read/28539450/mimic-phosphorylation-of-a-%C3%AE-c1-encoded-by-tylccnb-impairs-its-functions-as-a-viral-suppressor-of-rna-silencing-and-a-symptom-determinant
#9
Xueting Zhong, Zhan Qi Wang, Ruyuan Xiao, Linge Cao, Yaqin Wang, Yan Xie, Xueping Zhou
Phosphorylation of the βC1 protein encoded by the betasatellite of tomato yellow leaf curl China virus (TYLCCNB-βC1) by SNF1-related protein kinase 1 (SnRK1) plays a critical role in defense of host plants against geminivirus infection in Nicotiana benthamiana However, how phosphorylation of TYLCCNB-βC1 impacts its pathogenic functions during viral infection remains elusive. In this study, we identified two additional tyrosine residues in TYLCCNB-βC1 that are phosphorylated by SnRK1. The effects of TYLCCNB-βC1 phosphorylation on its functions as a viral suppressor of RNA silencing (VSR) and a symptom determinant were investigated via phosphorylation- mimic mutants in N...
May 24, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28537247/genomic-variation-associated-with-local-adaptation-of-weedy-rice-during-de-domestication
#10
Jie Qiu, Yongjun Zhou, Lingfeng Mao, Chuyu Ye, Weidi Wang, Jianping Zhang, Yongyi Yu, Fei Fu, Yunfei Wang, Feijian Qian, Ting Qi, Sanling Wu, Most Humaira Sultana, Ya-Nan Cao, Yu Wang, Michael P Timko, Song Ge, Longjiang Fan, Yongliang Lu
De-domestication is a unique evolutionary process by which domesticated crops are converted into 'wild predecessor like' forms. Weedy rice (Oryza sativa f. spontanea) is an excellent model to dissect the molecular processes underlying de-domestication. Here, we analyse the genomes of 155 weedy and 76 locally cultivated rice accessions from four representative regions in China that were sequenced to an average 18.2 × coverage. Phylogenetic and demographic analyses indicate that Chinese weedy rice was de-domesticated independently from cultivated rice and experienced a strong genetic bottleneck...
May 24, 2017: Nature Communications
https://www.readbyqxmd.com/read/28536109/effect-of-iron-on-cholesterol-7-alpha-hydroxylase-expression-in-alcohol-induced-hepatic-steatosis-in-mouse
#11
Huan Liang, Hui Huang, Pei-Zhu Tan, Ying Liu, Jun-Hui Nie, Yi-Tong Zhang, Kai-Li Zhang, Yan Diao, Qi He, Bao-Yu Hou, Ting-Ting Zhao, Yan-Ze Li, Gui-Xiang Lv, Ki-Yong Lee, Xu Gao, Ling-Yun Zhou
Both iron and lipids are involved in the progression of alcoholic fatty liver disease (AFLD), but the interaction between iron and lipids in AFLD is unclear. Here, we tested the hypothesis that iron regulates the expression of genes involved in lipid metabolism through iron regulatory proteins (IRPs), which interact with the iron-responsive elements (IREs) in the UTRs of genes, resulting in lipid accumulation. Using the "RNA structure software", we predicted the mRNA secondary structures of more than 100 genes involved in lipid metabolism to investigate whether the IRE structure exists in novel mRNAs...
May 23, 2017: Journal of Lipid Research
https://www.readbyqxmd.com/read/28535796/identification-of-eml4-alk-as-an-alternative-fusion-gene-in-epithelioid-inflammatory-myofibroblastic-sarcoma
#12
Quan Jiang, Han-Xing Tong, Ying-Yong Hou, Yong Zhang, Jing-Lei Li, Yu-Hong Zhou, Jing Xu, Jiong-Yuan Wang, Wei-Qi Lu
BACKGROUND: Known as solid tumors of intermediate malignant potential, most inflammatory myofibroblastic tumors (IMTs) are treatable as long as the tumor is en-bloc resected. However, in some cases, the tumors have recurred and grown rapidly after successful surgery. Some of these tumors were classified as an epithelioid inflammatory myofibroblastic sarcoma (EIMS). Most previously reported EIMSs have been caused by RANBP2-ALK fusion gene. We herein report an EIMS case caused by an EML4-ALK fusion gene...
May 23, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28534839/exploring-the-pivotal-role-of-the-ck2-hinge-region-sub-pocket-in-binding-with-tricyclic-quinolone-analogues-by-computational-analysis
#13
Yue Zhou, Na Zhang, Shan Tang, Xiaoqian Qi, Lijiao Zhao, Rugang Zhong, Yongzhen Peng
Protein kinase CK2 has been considered as an attractive therapeutic target of cancer therapy. The tricyclic quinoline compound CX-4945 is the first representative of CK2 inhibitors used in human clinical trials. The binding of non-2,6-naphtyridine substituted compounds 27e (IC50 > 500 nM) and 27h (IC50 > 1000 nM) to CK2 is abolished. However, the unbinding mechanisms due to the key pharmacophore group replacement of compounds 27e and 27h are unveiled. In the present work, combined computational analysis was performed to investigate the underlying structural basis of the low-affinity of two systems...
May 19, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28534651/tert-butylhydroquinone-promotes-angiogenesis-and-improves-heart-functions-in-rats-after-myocardial-infarction
#14
Nan-Qian Zhou, Ning Liu, Peng Li, Song Ping, Qi-Sheng Peng, Wei-Dong Shi
BACKGROUND: Hypertension is an increased risk of heart failure and acute myocardial infarction (MI). Tert-butylhydroquinone (tBHQ), as an antioxidant, shows multiple cardioprotective actions including the reduction in blood pressure. The aim of this study was to investigate whether and how tBHQ improves heart functions in rats. METHODS: The MI model was established in WKY and spontaneously hypertensive rats (SHRs) by ligation of left anterior descending coronary artery...
May 23, 2017: Clinical and Experimental Hypertension: CHE
https://www.readbyqxmd.com/read/28534371/the-effect-of-mir-21-on-swoz2-glioma-cells-and-its-biological-mechanism
#15
Shen-Jie Li, Jie Zhou, Ling Zhang, Wei Xiang, Qi Hu, Yong-Yue He, Li-Gang Chen
PURPOSE: To investigate the role of micro RNA-21 (miR- 21) in human glioma cells and its potential disease-causing mechanism. METHODS: jetPRIME was used to transfect the miR-21- mimics and its negative control into SWOZ2 human glioma cells. Real-time fluorescence quantitative PCR assay was used to measure differences in the expression of miR-21 in SWOZ2 glioma cells, SWOZ2-miR-21-mimics cells, and control cells. Cell counting kit-8 assay was used to measure the activity of SWOZ2 glioma cells and SWOZ2-miR-21- mimics cells, and Western blot was used to measure PTEN, p-Akt, and P-glycoprotein (P-gp)...
March 2017: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28532101/sonochemical-synthesis-of-fructose-1-6-bisphosphate-dicalcium-porous-microspheres-and-their-application-in-promotion-of-osteogenic-differentiation
#16
Chao Qi, Ding Zhou, Ying-Jie Zhu, Tuan-Wei Sun, Feng Chen, Chang-Qing Zhang
Human bone mesenchymal stem cells (hBMSCs) have the ability to differentiate into bone and cartilage for clinical bone regeneration. Biomaterials with an innate ability to stimulate osteogenic differentiation of hBMSCs into bone and cartilage are considered attractive candidates for the applications in bone tissue engineering and regeneration. In this paper, we synthesized fructose 1,6-bisphosphate dicalcium (Ca2FBP) porous microspheres by the sonochemical method, and investigated the ability of Ca2FBP for the promotion of the osteogenic differentiation of hBMSCs...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28531361/the-different-dosages-of-estrogen-affect-endometrial-fibrosis-and-receptivity-but-not-sdf-1-cxcr4-axis-in-the-treatment-of-intrauterine-adhesions
#17
Qin Zhou, Xixi Wu, Xuelin Dai, Rui Yuan, Hongbo Qi
OBJECTIVE: The study was to evaluate whether fibrotic markers, endometrial receptivity markers and SDF-1/CXCR4 had been changed in the treatment of intrauterine adhesions (IUAs) by different dosages of estrogen. STUDY DESIGN: A total of 39 patients with IUAs were treated with EV 4 mg or 9 mg randomly post-surgery. TGF-β1/MMP-9, VEGF/αvβ3 and SDF-1/CXCR4 were detected in endometrial tissue before and after treatment by real-time PCR and Western blot. RESULTS: TGF-β1 and MMP-9 expression significantly decreased after treatment for 3 months than before (p < ...
May 20, 2017: Gynecological Endocrinology
https://www.readbyqxmd.com/read/28530799/bioinspired-interface-engineering-for-moisture-resistance-in-nacre-mimetic-cellulose-nanofibrils-clay-nanocomposites
#18
Kun Yao, Shu Huang, Hu Tang, Yeping Xu, Gerd Buntkowsky, Lars A Berglund, Qi Zhou
The interfacial adhesion design between "mortar" and "bricks" is essential for mechanical and barrier performance of nanocellulose-based nacre-mimetic nanocomposites, especially at high moisture conditions. To address this fundamental challenge, dopamine (DA) has been conjugated to cellulose nanofibrils (CNFs) and subsequently assembled with montmorillonite (MTM) to generate layered nanocomposite films inspired by the strong adhesion of mussel adhesive proteins to inorganic surfaces under water. The selective formation of catechol/metal ion chelation and hydrogen bonding at the interface between MTM platelets and CNFs bearing DA renders transparent films with strong mechanical properties, particularly at high humidity and in wet state...
May 22, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28529609/is-pretreatment-epstein-barr-virus-dna-still-associated-with-6-year-survival-outcomes-in-locoregionally-advanced-nasopharyngeal-carcinoma
#19
Ya-Nan Jin, Ji-Jin Yao, Fan Zhang, Si-Yang Wang, Wang-Jian Zhang, Guan-Qun Zhou, Zhen-Yu Qi, Ying Sun
Purpose: The objective of this study was to confirm the association between pretreatment Epstein-Barr virus (EBV) DNA (pre-DNA) load and survival outcomes after long-term follow-up in patients with locoregionally advanced nasopharyngeal carcinoma (LA-NPC). Materials and Methods: Between November 2009 and February 2012, a total of 1036 patients with LA-NPC were enrolled. There were 762 patients in stage III and 274 in stage IVA-B. All patients were treated with radical radiotherapy with or without chemotherapy, and pre-DNA concentrations were quantified by a polymerase chain reaction assay...
2017: Journal of Cancer
https://www.readbyqxmd.com/read/28529607/influence-of-cervical-node-necrosis-of-different-grades-on-the-prognosis-of-nasopharyngeal-carcinoma-patients-treated-with-intensity-modulated-radiotherapy
#20
Lu-Lu Zhang, Jia-Xiang Li, Guan-Qun Zhou, Ling-Long Tang, Jun Ma, Ai-Hua Lin, Zhen-Yu Qi, Ying Sun
Background: To analyze the prognostic value of cervical node necrosis (CNN) observed on pretreatment magnetic resonance imaging (MRI) in patients with nasopharyngeal carcinoma (NPC) treated with intensity-modulated radiotherapy (IMRT). Patients and Methods: The medical records of 1423 NPC patients with cervical node metastasis who underwent IMRT were retrospectively reviewed. Lymph nodes in the axial plane of pretreatment MRI were classified as follows: grade 0 CNN, no hypodense zones; grade 1 CNN, ≤33% areas showing hypodense zones; and grade 2, >33% areas showing hypodense zones...
2017: Journal of Cancer
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