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https://www.readbyqxmd.com/read/28738568/novel-imidazole-fluorescent-poly-ionic-liquid-nanoparticles-for-selective-and-sensitive-determination-of-pyrogallol
#1
Zhouyang Li, Yiwen Yang, Yanbo Zeng, Jianbo Wang, Haiqing Liu, Longhua Guo, Lei Li
This paper reports novel imidazole fluorescent poly(ionic liquid) nanoparticles (FPILNs) of poly(1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide (poly([MVI]Br) for selective and sensitive determination of pyrogallol. An imidazole ionic liquid of 1-[(4-methyphenyl)methyl]-3-vinyl-imidazolium bromide ([MVI]Br) was synthesized and used as the only monomer to obtain poly([MVI]Br) possessing phenyl fluorophores using a radical polymerization technique. The obtained poly([MVI]Br) can form nanoparticles in water...
November 1, 2017: Talanta
https://www.readbyqxmd.com/read/28714661/generalizable-electroless-template-assisted-synthesis-and-electrocatalytic-mechanistic-understanding-of-perovskite-lanio3-nanorods-as-viable-supportless-oxygen-evolution-reaction-catalysts-in-alkaline-media
#2
Coray L McBean, Haiqing Liu, Megan E Scofield, Luyao Li, Lei Wang, Ashley Bernstein, Stanislaus S Wong
The oxygen evolution reaction (OER) is a key reaction for water electrolysis cells and air-powered battery applications. However, conventional metal oxide catalysts, used for high-performing OER, tend to incorporate comparatively expensive and less abundant precious metals such as Ru and Ir, and, moreover, suffer from poor stability. To attempt to mitigate for all of these issues, we have prepared one-dimensional (1D) OER-active perovskite nanorods using a unique, simple, generalizable, and robust method. Significantly, our work demonstrates the feasibility of a novel electroless, seedless, surfactant-free, wet solution-based protocol for fabricating "high aspect ratio" LaNiO3 and LaMnO3 nanostructures...
July 17, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28706152/the-role-of-endobronchial-ultrasound-elastography-in-the-diagnosis-of-mediastinal-and-hilar-lymph-nodes
#3
Ye Gu, Hong Shi, Chunxia Su, Xiaoxia Chen, Shijia Zhang, Wei Li, Fengying Wu, Guanghui Gao, Hao Wang, Haiqing Chu, Caicun Zhou, Fei Zhou, Shengxiang Ren
Endobronchial ultrasound-guided transbronchial needle aspiration (EBUS-TBNA) has been widely used for diagnosis and mediastinal lymph nodes staging in patients with suspicious lung cancer. Ultrasound elastography is a novel sonographical technique that can evaluate tissue compressibility. The aim of the present study was to investigate the diagnostic yield of elastography for differentiating malignant and benign mediastinal lymph nodes. Conventional EBUS B-mode features, including size, shape, border distinction, echogenicity, central hilar structure with central blood vessel and coagulation necrosis were also evaluated...
July 6, 2017: Oncotarget
https://www.readbyqxmd.com/read/28677803/grape-seed-procyanidin-b2-ameliorates-hepatic-lipid-metabolism-disorders-in-db-db-mice
#4
Mei Yin, Pei Zhang, Fei Yu, Zhen Zhang, Qian Cai, Weida Lu, Baoying Li, Weidong Qin, Mei Cheng, Hao Wang, Haiqing Gao
Diabetes is commonly associated with liver lipid metabolism disorders. AMP-activated protein kinase (AMPK) has a key role in regulating lipid metabolism. Grape seed procyanidin B2 (GSPB2), a natural polyphenol polymer, ameliorates mitochondrial dysfunction and inhibits oxidative stress or apoptosis via AMPK pathways. In the present study, the hypothesis that GSPB2 treatment may ameliorate liver lipid metabolic disorders by activating AMPK and downstream pathways was tested in diabetic mice. Db/m mice were used as controls, and diabetic db/db mice were randomly divided into 2 groups for treatment: Vehicle and GSPB2 (30 mg/kg/day for 10 weeks)...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28672965/endobronchial-aspergilloma-a-case-report-and-literature-review
#5
Dongdong Huang, Bing Li, Haiqing Chu, Zhemin Zhang, Qiuhong Sun, Lan Zhao, Liyun Xu, Li Shen, Tao Gui, Huikang Xie, Jun Zhang
The present study aimed to investigate the clinical and radiological characteristics in addition to the bronchoscopic appearance in patients with endobronchial aspergilloma (EBA). Clinical and radiological characteristics were analyzed alongside the bronchoscopic appearance in 17 patients with EBA diagnosed by bronchoscopy with histological examination. The present study assessed the relevant literature and 13 males and 4 females were included in the comparison, with a median age of 59. Associated diseases included 8 previous diagnoses of pulmonary tuberculosis (47...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28672230/understanding-fire-drivers-and-relative-impacts-in-different-chinese-forest-ecosystems
#6
Futao Guo, Zhangwen Su, Guangyu Wang, Long Sun, Mulualem Tigabu, Xiajie Yang, Haiqing Hu
In this study, spatial patterns and driving factors of fires were identified from 2000 to 2010 using Ripley's K (d) function and logistic regression (LR) model in two different forest ecosystems of China: the boreal forest (Daxing'an Mountains) and sub-tropical forest (Fujian province). Relative effects of each driving factor on fire occurrence were identified based on standardized coefficients in the LR model. Results revealed that fires were spatially clustered and that fire drivers vary amongst differing forest ecosystems in China...
June 30, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28667762/enhanced-isoprenoid-production-from-xylose-by-engineered-saccharomyces-cerevisiae
#7
Suryang Kwak, Soo Rin Kim, Haiqing Xu, Guo-Chang Zhang, Stephan Lane, Heejin Kim, Yong-Su Jin
Saccharomyces cerevisiae has limited capabilities for producing fuels and chemicals derived from acetyl-CoA, such as isoprenoids, due to a rigid flux partition toward ethanol during glucose metabolism. Despite numerous efforts, xylose fermentation by engineered yeast harboring heterologous xylose metabolic pathways was not as efficient as glucose fermentation for producing ethanol. Therefore, we hypothesized that xylose metabolism by engineered yeast might be a better fit for producing non-ethanol metabolites...
July 1, 2017: Biotechnology and Bioengineering
https://www.readbyqxmd.com/read/28665958/effects-of-fire-disturbance-on-soil-respiration-in-the-non-growing-season-in-a-larix-gmelinii-forest-in-the-daxing-an-mountains-china
#8
Tongxin Hu, Long Sun, Haiqing Hu, Futao Guo
In boreal forests, fire is an important part of the ecosystem that greatly influences soil respiration, which in turn affects the carbon balance. Wildfire can have a significant effect on soil respiration and it depends on the fire severity and environmental factors (soil temperature and snow water equivalent) after fire disturbance. In this study, we quantified post-fire soil respiration during the non-growing season (from November to April) in a Larix gmelinii forest in Daxing'an Mountains of China. Soil respiration was measured in the snow-covered and snow-free conditions with varying degrees of natural burn severity forests...
2017: PloS One
https://www.readbyqxmd.com/read/28665598/isolation-and-characterization-of-sesquiterpenoids-from-cassia-buds-and-their-antimicrobial-activities
#9
Yindengzhi Guoruoluo, Haofeng Zhou, Junfei Zhou, Haiqing Zhao, Haji Akber Aisa, Guangmin Yao
Cassia buds, the immature fruits of Cinnamomum cassia (Lauraceae), are widely consumed as a food spice, dietary supplements, flavoring agents, and preservatives. In this study, cassia buds were phytochemically investigated for the first time, leading to the isolation of 2 new sesquiterpenoids (1 and 2) and 10 known sesquiterpenoids (3-12). Their structures were determined by spectrometric and spectroscopic analyses, including nuclear magnetic resonance, high-resolution electrospray ionization mass spectrometry, and circular dichroism...
June 30, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28664203/cobalt-carbonate-hydroxide-superstructures-for-oxygen-evolution-reactions
#10
Simin Zhang, Bing Ni, Haoyi Li, Haifeng Lin, Huihui Zhu, Haiqing Wang, Xun Wang
A novel three-dimensional (3D) superstructure of cobalt hydroxide carbonate assembled from nanoneedles has been synthesized via a facile hydrothermal method. Furthermore, we tested the electrocatalytic oxygen evolution reaction performance, which demonstrated that the superstructure exhibited high catalytic activity, achieving 10 mA cm(-2) at a low overpotential of merely 240 mV.
June 30, 2017: Chemical Communications: Chem Comm
https://www.readbyqxmd.com/read/28650316/the-na-ca-2-k-exchanger-nckx4-is-required-for-efficient-cone-mediated-vision
#11
Frans Vinberg, Tian Wang, Alicia De Maria, Haiqing Zhao, Steven Bassnett, Jeannie Chen, Vladimir J Kefalov
Calcium (Ca(2+)) plays an important role in the function and health of neurons. In vertebrate cone photoreceptors, Ca(2+) controls photoresponse sensitivity, kinetics, and light adaptation. Despite the critical role of Ca(2+) in supporting the function and survival of cones, the mechanism for its extrusion from cone outer segments is not well understood. Here, we show that the Na(+)/Ca(2+), K(+) exchanger NCKX4 is expressed in zebrafish, mouse, and primate cones. Functional analysis of NCKX4-deficient mouse cones revealed that this exchanger is essential for the wide operating range and high temporal resolution of cone-mediated vision...
June 26, 2017: ELife
https://www.readbyqxmd.com/read/28623551/which-patients-will-benefit-from-a-switch-in-therapy-from-premixed-insulin-to-insulin-glargine-plus-oral-antidiabetic-drugs-further-analysis-of-the-lantus-registry-study
#12
Shi Bu, Xuelian Zhang, Haiqing Zhu, Ying Shuai, Xiaoyan Xing, Wenying Yang
INTRODUCTION: This subgroup analysis of data from the 16-week Lantus Registry Study in China investigated the characteristics of patients with type 2 diabetes mellitus (T2DM) associated with clinical benefits of transitioning therapy from premixed insulin to insulin glargine (100 U/ml) plus oral antidiabetic drugs (OADs). METHODS: The modified intention-to-treat population of the Lantus Registry Study, comprising 1847 patients with T2DM, were included in the current subgroup analyses...
June 16, 2017: Diabetes Therapy: Research, Treatment and Education of Diabetes and related Disorders
https://www.readbyqxmd.com/read/28617242/a-subset-of-iprgcs-regulates-both-maturation-of-the-circadian-clock-and-segregation-of-retinogeniculate-projections-in-mice
#13
Kylie S Chew, Jordan M Renna, David S McNeill, Diego C Fernandez, William T Keenan, Michael B Thomsen, Jennifer L Ecker, Gideon S Loevinsohn, Cassandra VanDunk, Daniel C Vicarel, Adele Tufford, Shijun Weng, Paul A Gray, Michel Cayouette, Erik D Herzog, Haiqing Zhao, David M Berson, Samer Hattar
The visual system consists of two major subsystems, image-forming circuits that drive conscious vision and non-image-forming circuits for behaviors such as circadian photoentrainment. While historically considered non-overlapping, recent evidence has uncovered crosstalk between these subsystems. Here, we investigated shared developmental mechanisms. We revealed an unprecedented role for light in the maturation of the circadian clock and discovered that intrinsically photosensitive retinal ganglion cells (ipRGCs) are critical for this refinement process...
June 15, 2017: ELife
https://www.readbyqxmd.com/read/28608836/evaluation-of-the-antidiabetic-activity-and-chemical-composition-of-geranium-collinum-root-extracts-computational-and-experimental-investigations
#14
Sodik Numonov, Salamet Edirs, Khayrulla Bobakulov, Muhammad Nasimullah Qureshi, Khurshed Bozorov, Farukh Sharopov, William N Setzer, Haiqing Zhao, Maidina Habasi, Mizhgona Sharofova, Haji Akber Aisa
The root of Geranium collinum Steph is known in Tajik traditional medicine for its hepatoprotective, antioxidant, and anti-inflammatory therapeutic effects. The present study was conducted to evaluate of potential antidiabetic, antioxidant activities, total polyphenolic and flavonoid content from the different extracts (aqueous, aqueous-ethanolic) and individual compounds isolated of the root parts of G. collinum. The 50% aqueous-ethanolic extract possesses potent antidiabetic activity, with IC50 values of 0...
June 13, 2017: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/28592852/soil-respiration-of-the-dahurian-larch-larix-gmelinii-forest-and-the-response-to-fire-disturbance-in-da-xing-an-mountains-china
#15
Tongxin Hu, Long Sun, Haiqing Hu, David R Weise, Futao Guo
Despite the high frequency of wildfire disturbances in boreal forests in China, the effects of wildfires on soil respiration are not yet well understood. We examined the effects of fire severity on the soil respiration rate (Rs) and its component change in a Dahurian Larch (Larix gmelinii) in Northeast China. The results showed that Rs decreased with fire burning severity. Compared with the control plots, Rs in the low burning severity plots decreased by 19%, while it decreased by 28% in the high burning severity plots...
June 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28587371/outcome-of-antegrade-intramedullary-fixation-for-juvenile-fifth-metacarpal-neck-fracture-with-titanium-elastic-nail
#16
Kaiying Shen, Yunlan Xu, Dan Cao, Zhigang Wang, Haiqing Cai
The purpose of the current study was to assess the outcome of antegrade intramedullary fixation with titanium elastic nail (TEN) in displaced fifth metacarpal neck fractures. The present study included 69 consecutive juvenile patients with displaced fifth metacarpal fractures. The head-shaft angle of the fifth metacarpal and range of motion (ROM) of the metacarpophalangeal (MCP) joint were evaluated. A disabilities of the arm, shoulder and hand (DASH) questionnaire was used to assess upper arm function. The head-shaft angle of the affected side was significantly improved postoperatively (P<0...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28587322/novel-variant-in-the-fgd1-gene-causing-aarskog-scott-syndrome
#17
Yihua Ge, Niu Li, Zhigang Wang, Jian Wang, Haiqing Cai
Aarskog-Scott syndrome (ASS) is a rare, X-linked recessive inherited disorder. Affected individuals may develop short stature and exhibit distinctive skeletal and genital development. Mutations in the FYVE, rhogef and pleckstrin homology domain-containing protein 1 (FGD1) gene, located within the Xp11.21 region, are responsible for the occurrence of ASS. Since it is rare and complex, it can take a long time to obtain a definitive clinical diagnosis unless clinicians are familiar with the disease. In the present study, whole-exome sequencing (WES) was performed to screen for causal variants in a Chinese pediatric patient who exhibited a number of clinical symptoms of ASS, including short stature, facial abnormalities, stubby metacarpals and swollen testis...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28579505/relationship-between-post-thrombolysis-blood-pressure-and-outcome-in-acute-ischemic-stroke-patients-undergoing-thrombolysis-therapy
#18
Longfei Wu, Xiaoqin Huang, Di Wu, Wenbo Zhao, Chuanjie Wu, Ruiwen Che, Zhen Zhang, Fang Jiang, Tingting Bian, Tingting Yang, Kai Dong, Qian Zhang, Zhipeng Yu, Qingfeng Ma, Haiqing Song, Yuchuan Ding, Xunming Ji
BACKGROUND: The management of blood pressure (BP) for acute ischemic stroke (AIS) patients undergoing thrombolysis is still under debate. The purpose of this study was (1) to explore the association between post-thrombolysis BP and functional outcome and (2) to examine whether post-thrombolysis BP can predict functional outcome in Chinese AIS patients undergoing thrombolysis therapy. METHODS: From December 2012 to November 2016, AIS patients undergoing thrombolysis were reviewed retrospectively in the Department of Neurology at Xuanwu Hospital...
June 1, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28571870/numerical-simulation-study-on-air-quality-in-aircraft-cabins
#19
Yingjie Zhao, Bingrong Dai, Qi Yu, Haiqing Si, Gang Yu
Air pollution is one of the main factors that affect the air quality in aircraft cabins, and the use of different air supply modes could influence the distribution of air pollutants in cabins. Based on the traditional ceiling air supply mode used on the B737NG, this study investigated another 3 different kinds of air supply modes for comparison: luggage rack air supply mode, joint mode combining ceiling and luggage rack air supply, and joint mode combining ceiling and individual air supply. Under the above 4 air supply modes, the air velocity, temperature and distribution of air pollutants in a cabin full of passengers were studied using computational fluid dynamics (CFD), and carbon dioxide (CO2) and formaldehyde were selected as 2 kinds of representative air pollutants...
June 2017: Journal of Environmental Sciences (China)
https://www.readbyqxmd.com/read/28566171/achieving-low-density-lipoprotein-cholesterol-70mg-dl-may-be-associated-with-a-trend-of-reduced-progression-of-carotid-artery-atherosclerosis-in-ischemic-stroke-patients
#20
Qian Zhang, Shimeng Liu, Yumei Liu, Yang Hua, Haiqing Song, Yi Ren, Yang Song, Ran Liu, Wuwei Feng, Bruce Ovbiagele, Jianping Ding, Xunming Ji
OBJECTIVE: To assess whether an intensive lipid-lowering strategy is more beneficial on atherosclerotic plaque progression in the stroke survivors. METHODS: We retrospectively assessed data that was prospectively collected on 106 ischemic stroke patients from one academic stroke center. Patients with various degrees of common carotid artery atherosclerosis were followed for one year. Patients were classified into intensive lipid-lowering therapy (ILLT) group if they achieve low-density lipoprotein cholesterol (LDL-c)<70mg/dL (n=38) and conventional lipid-lowering therapy (CLLT) group if their LDL-c is within 70-120mg/dL (n=68) at end of one year...
July 15, 2017: Journal of the Neurological Sciences
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