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https://www.readbyqxmd.com/read/28431453/carboxymethyl-%C3%AE-cyclodextrin-as-chiral-selector-in-capillary-electrophoresis-enantioseparation-of-16-basic-chiral-drugs-and-its-chiral-recognition-mechanism-associated-with-drugs-structural-features
#1
Linlin Fang, Yueying Du, Xiaoyu Hu, Linda Luo, Xin Guo, Xingjie Guo, Jia Yu
Herein we present the enantioseparation of 10 cardiovascular agents and 6 bronchiectasis drugs including propranolol, carteolol, metoprolol, atenolol, pindolol, esmolol, bisoprolol, bevantolol, arotinolol, sotalol, clenbuterol, procaterol, bambuterol, tranterol, salbutamol and terbutaline sulfate using carboxymethyl-β-cyclodextrin (CM-β-CD) as chiral selector. To our knowledge, there is no literature about using CM-β-CD for separating carteolol, esmolol, bisoprolol, bevantolol, arotinolol, procaterol, bambuterol and tranterol...
April 21, 2017: Biomedical Chromatography: BMC
https://www.readbyqxmd.com/read/28431434/bright-light-suppresses-form-deprivation-myopia-development-with-activation-of-dopamine-d1-receptor-signaling-in-the-on-pathway-in-retina
#2
Si Chen, Zhina Zhi, Qingqing Ruan, Qingxia Liu, Fen Li, Fen Wan, Peter S Reinach, Jiangfan Chen, Jia Qu, Xiangtian Zhou
Purpose: To determine whether dopamine receptor D1 (D1R) signaling pathway activation by bright light (BL) in specific retinal neuronal cell types contributes to inhibiting form-deprivation myopia (FDM) in mice. Methods: Mice (3-weeks old) were raised under either normal light (NL: 100-200 lux) or BL (2500-5000 lux) conditions with or without form deprivation. Refraction changes were evaluated with an eccentric infrared photorefractor, and ocular axial components with optical coherence tomography...
April 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/28431258/cage-and-linear-structured-polysiloxane-epoxy-hybrids-for-coatings-surface-property-and-film-permeability
#3
Yanli Ma, Ling He, Mengjun Jia, Lingru Zhao, Yanyan Zuo, Pingan Hu
Three polysiloxane/epoxy hybrids obtained by evolving cage- or linear-structured polysiloxane into poly glycidyl methacrylate (PGMA) matrix are compared used as coatings. One is the cage-structured hybrid of P(GMA/MA-POSS) copolymer obtained by GMA and methacrylisobutyl polyhedral oligomeric silsesquioxane (MA-POSS) via free radical polymerization, the other two are PGMA/NH2-POSS and PGMA/NH2-PDMS hybrids by cage-structured aminopropyllsobutyl POSS (NH2-POSS) or linear-structured diamino terminated poly(dimethylsiloxane) (NH2-PDMS) to cure PGMA...
April 12, 2017: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/28431181/protective-effect-of-mesenchymal-stem-cells-against-the-development-of-intracranial-aneurysm-rupture-in-mice
#4
Atsushi Kuwabara, Jia Liu, Yoshinobu Kamio, Airan Liu, Michael T Lawton, Jae-Woo Lee, Tomoki Hashimoto
BACKGROUND: Mesenchymal stem cells (MSCs) are multipotent stem or stromal cells found in multiple tissues. Intravenous MSC injections have been used to treat various diseases with an inflammatory component in animals and humans. Inflammation is emerging as a key component of pathophysiology of intracranial aneurysms. Modulation of inflammation by MSCs may affect sustained inflammatory processes that lead to aneurysmal rupture. OBJECTIVE: To assess the effect of MSCs on the development of aneurysm rupture using a mouse model...
April 19, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28431162/risk-of-serious-bacterial-infection-associated-with-tumour-necrosis-factor-alpha-inhibitors-in-children-with-juvenile-idiopathic-arthritis
#5
Wan-Ju Lee, Todd A Lee, Katie J Suda, Gregory S Calip, Leslie Briars, Glen T Schumock
Objectives.: TNF-α inhibitors (TNFIs) have a black box warning for increased risk of serious infection that was based on evidence from studies of adults. Evidence of the association is lacking for children. We aimed to examine the risk of infection posed by TNFIs compared with DMARDs in children with JIA. Methods.: We conducted a cohort study using the 2009-13 Truven MarketScan Commercial Claims and Encounters database. Children <16 years old with JIA who initiated monotherapy with TNFIs or DMARDs were identified and followed for occurrence of serious bacterial infection requiring hospitalization...
April 18, 2017: Rheumatology
https://www.readbyqxmd.com/read/28430824/suppressors-of-cytokine-signaling-in-tuberculosis
#6
Shih-Wei Lee, Chi-Wei Liu, Jia-Ying Hu, Li-Mei Chiang, Chih-Pin Chuu, Lawrence Shih-Hsin Wu, Yung-Hsi Kao
Tuberculosis (TB), a global disease mainly infected by Mycobacterium tuberculosis, remains leading public health problem worldwide. Suppressors of cytokine signaling (SOCSs) play important roles in the protection against microbial infection. However, the relationship between members of the SOCS family and tuberculosis infection remains unclear. Using peripheral blood mononuclear cells, we investigated the mRNA expression profiles of SOCS subfamilies among active TB, latent tuberculosis infection (LTBI), and healthy individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28430584/short-and-long-term-outcomes-of-laparoscopy-assisted-versus-open-total-gastrectomy-for-gastric-cancer-a-propensity-score-matched-analysis
#7
Jian-Xian Lin, Ju-Li Lin, Chao-Hui Zheng, Ping Li, Jian-Wei Xie, Jia-Bin Wang, Jun Lu, Qi-Yue Chen, Long-Long Cao, Mi Lin, Ru-Hong Tu, Ze-Ning Huang, Chang-Ming Huang
BACKGROUND: Few studies have been designed to evaluate the short- and long-term outcomes of laparoscopy-assisted total gastrectomy (LATG), and a retrospective study of a large patient cohort is valuable before conducting randomized controlled clinical trials. RESULTS: Among all patients, age, tumor location, histologic type, pT stage, pN stage and pTNM stage significantly differed between the LATG group and OTG group. After the propensity score matching, the clinicopathological characteristics did not significantly differ between groups...
April 5, 2017: Oncotarget
https://www.readbyqxmd.com/read/28430562/competence-of-aedes-aegypti-ae-albopictus-and-culex-quinquefasciatus-mosquitoes-as-zika-virus-vectors-china
#8
Zhuanzhuan Liu, Tengfei Zhou, Zetian Lai, Zhenhong Zhang, Zhirong Jia, Guofa Zhou, Tricia Williams, Jiabao Xu, Jinbao Gu, Xiaohong Zhou, Lifeng Lin, Guiyun Yan, Xiao-Guang Chen
In China, the prevention and control of Zika virus disease has been a public health threat since the first imported case was reported in February 2016. To determine the vector competence of potential vector mosquito species, we experimentally infected Aedes aegypti, Ae. albopictus, and Culex quinquefasciatus mosquitoes and determined infection rates, dissemination rates, and transmission rates. We found the highest vector competence for the imported Zika virus in Ae. aegypti mosquitoes, some susceptibility of Ae...
July 15, 2017: Emerging Infectious Diseases
https://www.readbyqxmd.com/read/28430269/an-active-catalytic-system-for-suzuki-miyaura-cross-coupling-reactions-using-low-levels-of-palladium-loading
#9
Meng-Qi Yan, Jia Yuan, Fang Lan, Si-Hao Zeng, Meng-Yue Gao, Sheng-Hua Liu, Jian Chen, Guang-Ao Yu
An easily available Pd(OAc)2/(2-(anthracen-9-yl)-1H-inden-3-yl) dicyclohexylphosphine/toluene/(i)PrOH/water catalytic system was developed, which shows high catalytic activity in the Suzuki-Miyaura cross-coupling reactions of a diverse array of aryl and heteroaryl chlorides with Pd loadings down to 0.01 mol%.
April 21, 2017: Organic & Biomolecular Chemistry
https://www.readbyqxmd.com/read/28430256/all-fiber-optic-acoustic-sensor-array-for-real-time-sound-source-localization
#10
Jian Wang, Hongyan Wu, Bo Jia
Real-time sound source localization has been widely realized by the conventional microphone array for the present. In addition, fiber-optic microphones have many advantages over conventional microphones. In the present work, an all-fiber-optic acoustic array system with a wavelength-division multiplexing scheme is proposed, which has a high sensitivity and significant superiority in high-frequency signal detection and can be applied in harsh environments. The system also has the advantages of simple construction and low cost...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430255/widely-tunable-2%C3%A2-%C3%A2-%C3%AE-m-continuous-wave-and-mode-locked-fiber-laser
#11
Wanzhuo Ma, Tianshu Wang, Yan Zhang, Peng Liu, Yuwei Su, Qingsong Jia, Mingzhe Bi, Peng Zhang, Huilin Jiang
We propose and experimentally demonstrate a widely tunable mode-locked thulium-doped fiber laser. The laser can operate at both continuous-wave and mode-locked states at different pump power levels. A classic nonlinear polarization rotation structure is employed to obtain the passive mode-locked laser. A birefringence Lyot filter as a fiber comb filter is used to expand the tuning range. Thanks to the filtering component, the tuning range of the continuous-wave laser can reach 127 nm (1823-1950 nm). The tuning ranges of the single-wavelength and dual-wavelength mode-locked lasers are 94 nm (1835-1929 nm) and 87 nm (1831-1918 nm), respectively, with a 3...
April 20, 2017: Applied Optics
https://www.readbyqxmd.com/read/28430117/fluvastatin-therapy-could-not-decrease-progression-of-paroxysmal-atrial-fibrillation-in-non-valvular-disease-patients
#12
Qiang Tan, Shuangyue Zhang, Xiaoyi Zou, Jun Zhao, Jia Hao, Qian Sun
OBJECTIVE: This study aimed to evaluate whether fluvastatin therapy could decrease the probability of atrial fibrillation (AF) progression from paroxysmal AF to permanent AF and decrease the recurrence frequency of AF. METHODS: Analyses were performed using two-tailed Student's t test or Mann-Whitney U tests. Categorical variables were compared with the χ2 statistics or Fisher's exact test. Patients with paroxysmal AF were randomized case-control, prospective into either the fluvastatin group (n=61) or control group (n=57)...
April 10, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28429995/new-insights-into-the-role-of-dietary-spermine-on-inflammation-immune-function-and-related-signalling-molecules-in-the-thymus-and-spleen-of-piglets
#13
Wei Cao, Xianjian Wu, Gang Jia, Hua Zhao, Xiaoling Chen, Caimei Wu, Jiayong Tang, Jing Wang, Jingyi Cai, Guangmang Liu
This study aimed to determine the effects of dietary spermine supplementation on the inflammatory response and immune function of the thymus and spleen in piglets. Eighty suckling piglets were randomly assigned to receive adequate nutrients supplemented with spermine (0.4 mmol/kg body weight) or restricted nutrient intake supplemented with normal saline for 7 h or 3, 6 and 9 days in pairs. Regardless of treatment time, spermine supplementation decreased (p < 0.05, compared with the controls) the following: (1) tumour necrosis factor α (TNF-α), interleukin (IL)-1β, 2 and 6, and interferon (IFN)-γ levels in serum; (2) gene expression of cluster of differentiation 8 and integrin beta-2 in the thymus and spleen and the lymphocyte function-associated antigen 1 in the thymus; (3) mRNA levels of TNF-α, IL 1β, 2, 6, and 12, IFN-γ and inducible nitric oxide synthase in the thymus and spleen, as well as IL-8 in the spleen; and (4) eukaryotic IF4E-binding protein 1, Janus kinase 2, signal transducer and activator of transcription 3, and nuclear factor-kappa B P65 gene transcriptions in the thymus and spleen...
June 2017: Archives of Animal Nutrition
https://www.readbyqxmd.com/read/28429844/a-comparison-of-clinical-characteristics-of-older-adults-treated-with-antidepressants-in-general-and-psychiatric-hospitals-in-asia
#14
Yuan-Yuan Wang, Yu-Tao Xiang, Gabor S Ungvari, Chee H Ng, Helen F K Chiu, Larina C L Yim, Tian-Mei Si, Kok-Yoon Chee, Ajit Avasthi, Sandeep Grover, Mian-Yoon Chong, Kang Sim, Shigenobu Kanba, Yan-Ling He, Min-Soo Lee, Shu-Yu Yang, Pichet Udomratn, Roy A Kallivayalil, Andi J Tanra, Margarita M Maramis, Winston W Shen, Norman Sartorius, Rathi Mahendran, Jia-Ying Teng, Chay-Hoon Tan, Naotaka Shinfuku
AIM: This study compared the demographics, clinical characteristics, and antidepressant prescription patterns between Asian patients aged 50 years and older attending psychiatric hospitals and those attending general hospitals. METHODS: In total, 955 patients (604 in general hospitals, 351 in psychiatric hospitals) aged 50 years or older treated with antidepressants in 10 Asian countries and territories were examined. Patients' demographics, clinical features, and prescriptions of psychotropic drugs were recorded using a standardized protocol and data collection procedure...
April 21, 2017: Psychogeriatrics: the Official Journal of the Japanese Psychogeriatric Society
https://www.readbyqxmd.com/read/28429770/neurons-secrete-mir-132-containing-exosomes-to-regulate-brain-vascular-integrity
#15
Bing Xu, Yu Zhang, Xu-Fei Du, Jia Li, Hua-Xing Zi, Ji-Wen Bu, Yong Yan, Hua Han, Jiu-Lin Du
Vascular integrity helps maintain brain microenvironment homeostasis, which is critical for the normal development and function of the central nervous system. It is known that neural cells can regulate brain vascular integrity. However, due to the high complexity of neurovascular interactions involved, understanding of the neural regulation of brain vascular integrity is still rudimentary. Using intact zebrafish larvae and cultured rodent brain cells, we find that neurons transfer miR-132, a highly conserved and neuron-enriched microRNA, via secreting exosomes to endothelial cells (ECs) to maintain brain vascular integrity...
April 21, 2017: Cell Research
https://www.readbyqxmd.com/read/28429725/estrogen-reprograms-the-activity-of-neutrophils-to-foster-protumoral-microenvironment-during-mammary-involution
#16
Hwa Hwa Chung, Yu Zuan Or, Smeeta Shrestha, Jia Tong Loh, Chew Leng Lim, Zoe Ong, Amanda Rui En Woo, I-Hsin Su, Valerie C L Lin
Epidemiological studies have indicated increased risk for breast cancer within 10 years of childbirth. Acute inflammation during mammary involution has been suggested to promote this parity-associated breast cancer. We report here that estrogen exacerbates mammary inflammation during involution. Microarray analysis shows that estrogen induces an extensive proinflammatory gene signature in the involuting mammary tissue. This is associated with estrogen-induced neutrophil infiltration. Furthermore, estrogen induces the expression of protumoral cytokines/chemokines, COX-2 and tissue-remodeling enzymes in isolated mammary neutrophils and systemic neutrophil depletion abolished estrogen-induced expression of these genes in mammary tissue...
April 21, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28429589/inhibition-of-zero-drift-in-the-perovskite-based-photodetector-devices-via-pcbm-doping
#17
Yintao Liu, Renxu Jia, Yucheng Wang, Ziyang Hu, Yuming Zhang, Tiqiang Pang, Yuejin Zhu, Suzhen Luan
The zero drift can severely deteriorate the stability of light-dark current ratio, detectivity and responsivity of the photodetectors. In this paper, the effects of [6,6]-phenyl-C61-butyric acid methyl ester (PCBM) doped perovskite based photodetector device on the inhibition of zero drift under dark state are discusses. Two kinds of photodetectors (Au/CH3NH3PbIxCl3-x/Au and Au/CH3NH3PbIxCl3-x:PCBM/Au) are prepared, and the materials and photodetector devices are measured by scanning electron microscope, X-ray diffraction, photoluminescence, ultra-violet absorption spectra, current-voltage and current-time...
April 21, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28429287/protective-effect-of-selenoprotein-x-against-oxidative-stress-induced-cell-apoptosis-in-human-hepatocyte-lo2-cells-via-the-p38-pathway
#18
Jia-Yong Tang, Ai-Hua He, Gang Jia, Guang-Mang Liu, Xiao-Ling Chen, Jing-Yi Cai, Hai-Ying Shang, Jin-Qiu Liao, Hua Zhao
Oxidative stress, as mediated by ROS (reactive oxygen species), is a significant factor in initiating the cells damaged by affecting cellular macromolecules and impairing their biological functions; SelX, a selenoprotein also known as MsrB1 belonging to the methionine sulfoxide reductase (Msr) family, is the redox repairing enzyme and involved in redox-related functions. In order to more precisely analyze the relationship between oxidative stress, cell oxidative damage, and SelX, we stably overexpressed porcine Selx full-length cDNA in human normal hepatocyte (LO2) cells...
April 20, 2017: Biological Trace Element Research
https://www.readbyqxmd.com/read/28429252/analysis-of-global-gene-expression-profiles-during-the-flowering-initiation-process-of-lilium%C3%A2-%C3%A3-%C3%A2-formolongi
#19
Yu-Fan Li, Ming-Fang Zhang, Meng Zhang, Gui-Xia Jia
The onset of flowering is critical for the reproductive development of plants. Lilium × formolongi is a lily hybrid that flowers within a year after sowing. We successfully identified four important stages during vegetative growth and flowering initiation of L. × formolongi under long day conditions. The plant tissues from the four stages were used in a genome-wide transcriptional analysis to investigate stage-specific changes of gene expression in L. × formolongi. In total, the sequence reads of the four RNA-sequencing libraries were assembled into 52,824 unigenes, of which 37,031 (70...
April 20, 2017: Plant Molecular Biology
https://www.readbyqxmd.com/read/28429167/corynebacterium-defluvii-sp-nov-isolated-from-sewage
#20
Qiu-Li Yu, Zheng-Fei Yan, Xin He, Feng-Hua Tian, Chuan-Wen Jia, Chang-Tian Li
A Gram-positive, aerobic, non-motile, rod-shapeds, cata-lase-positive, and oxidase-negative strain, designated Y49(T), was isolated from sewage collected from Jilin Agricultural University, China. It grew at 20-40°C (optimum at 30°C), at pH 6.0-8.0 (optimum at 7.0) and at 0-1.0% sodium chloride (optimum at 0%). The major isoprenoid quinone was menaquinone-8 (MK-8) and the polar lipids were diphosphatidylglycerol, phosphatidylglycerol, phosphatidylmethylethanolamine, four unidentified lipids, and two unidentified aminolipids...
April 20, 2017: Journal of Microbiology / the Microbiological Society of Korea
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