29 research outputs found

    The Intelligent Fiber Knitted Fabrics Development and Function Test

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    Introduction of a new type of intelligent Outlast textile fabric applied in top grade casual coat and children's coat. We discuss designing, developing, weaving, dyeing and finishing, and production. Also, to perform test on this kind of intelligent fabric temperature adjustment function, we can adopt test method like "warm model test", and "human being group test in laboratory

    Cellular Fibronectin is Induced in Ultraviolet-Exposed Human Skin and Induces IL-10 Production by Monocytes/Macrophages

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    CD11b+ monocytic/macrophagic cells that infiltrate human skin after in vivo ultraviolet exposure potently produce interleukin-10. We hypothesized that binding of monocyte β1 integrins to ultraviolet-induced extracellular matrix ligands, such as fibronectin, after entry of blood monocytes into the dermis, is involved in the modulation of immunoregulatory monocytic cytokines. Immunostaining of human skin and reverse transcriptase–polymerase chain reaction studies revealed that the embryonic isoform of cellular fibronectin, in which the extra domain A (EDA) segment is spliced in (EDA+ cellular fibronectin), and confers enhanced binding to β1 integrins, is newly induced and is associated with infiltrating CD11b+ cells post in vivo ultraviolet exposure. We then tested the effect of fibronectin on resting purified peripheral monocytes in vitro. We found that monocyte interleukin-10, but not interleukin-12, was significantly induced in a concentration-dependent manner by in vitro binding to cellular fibronectin (n = 6), but not plasma fibronectin. Tumor necrosis factor-α was also induced in a concentration-dependent manner, but to a lesser extent. Monoclonal antibodies to β1 integrins β-subunit (CD29) also strongly induced tumor necrosis factor-α and interleukin-10 production, but not interleukin-12. Neutralization of tumor necrosis factor-α reduced by 54% the interleukin-10 production that was induced by monocytes binding to cellular fibronectin, indicating that interleukin-10 induction is at least in part dependent upon concomitant autocrine tumor necrosis factor-α release. In conclusion, ultraviolet skin injury results in increased production and deposition of EDA+ cellular fibronectin in the papillary dermis, which may be one of the key signals capable of inducing interleukin-10 but not interleukin-12 in monocytes that infiltrate micromilieu of human skin after ultraviolet exposure

    Plasma Lipidomics Profiling Reveals Biomarkers for Papillary Thyroid Cancer Diagnosis

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    The objective of this study was to identify potential biomarkers and possible metabolic pathways of malignant and benign thyroid nodules through lipidomics study. A total of 47 papillary thyroid carcinomas (PTC) and 33 control check (CK) were enrolled. Plasma samples were collected for UPLC-Q-TOF MS system detection, and then OPLS-DA model was used to identify differential metabolites. Based on classical statistical methods and machine learning, potential biomarkers were characterized and related metabolic pathways were identified. According to the metabolic spectrum, 13 metabolites were identified between PTC group and CK group, and a total of five metabolites were obtained after further screening. Its metabolic pathways were involved in glycerophospholipid metabolism, linoleic acid metabolism, alpha-linolenic acid metabolism, glycosylphosphatidylinositol (GPI)—anchor biosynthesis, Phosphatidylinositol signaling system and the metabolism of arachidonic acid metabolism. The metabolomics method based on PROTON nuclear magnetic resonance (NMR) had great potential for distinguishing normal subjects from PTC. GlcCer(d14:1/24:1), PE-NME (18:1/18:1), SM(d16:1/24:1), SM(d18:1/15:0), and SM(d18:1/16:1) can be used as potential serum markers for the diagnosis of PTC

    ADSORPTION OF L-LYSINE FROM AQUEOUS SOLUTION BY SPHERICAL LIGNIN BEADS: KINETICS AND EQUILIBRIUM STUDIES

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    The potential of spherical lignin beads as an adsorbent to take up L-lysine from aqueous solution was investigated. The kinetic data were estimated by the pseudo-first-order and pseudo-second-order models. The mechanism of adsorption was also studied using the Boyd model and Webber’s intraparticle diffusion model. The equilibrium data were modeled by the Langmuir, Freundlich, and Dubinin-Radushkevich (D-R) isotherms as well. Results suggested that the adsorption kinetics can be best described by the pseudo-first-order model. The adsorption process initially was controlled by film diffusion, whereas the subsequent stage was controlled by intraparticle diffusion. The equilibrium data could be well fitted using the Langmuir isotherm model with a maximum adsorption capacity of 67.11 mg•g-1. The adsorption characteristics of the spherical lignin adsorbent proved the feasibility of its use as an alternative adsorbent for the removal of L-lysine from aqueous solution

    Reversibly Migratable Fluorescent Probe for Precise and Dynamic Evaluation of Cell Mitochondrial Membrane Potentials

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    The mitochondrial membrane potential (MMP, ΔΨmito) provides the charge gradient required for mitochondrial functions and is a key indicator of cellular health. The changes in MMP are closely related to diseases and the monitoring of MMP is thus vital for pathological study and drug development. However, most of the current fluorescent probes for MMP rely solely on the cell fluorescence intensity and are thus restricted by poor photostability, rendering them not suitable for long-term dynamic monitoring of MMP. Herein, an MMP-responsive fluorescent probe pyrrolyl quinolinium (PQ) which is capable of reversible migration between mitochondria and nucleolus is developed and demonstrated for dynamic evaluation of MMP. The fluorescence of PQ translocates from mitochondria to nucleoli when MMP decreases due to the intrinsic RNA-specificity and more importantly, the translocation is reversible. The cytoplasm to nucleolus fluorescence intensity ratio is positively correlated with MMP so that this method avoids the negative influence of photostability and imaging parameters. Various situations of MMP can be monitored in real time even without controls. Additionally, long-term dynamic evaluation of MMP is demonstrated for HeLa cells using PQ in oxidative environment. This study is expected to give impetus to the development of mitochondria-related disease diagnosis and drug screening

    Carbon nanotubes grown in situ on carbon paper as a microporous layer for proton exchange membrane fuel cells

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    The performance of proton exchange membrane fuel cell (PEMFC) is greatly influenced by the characteristics of gas diffusion layer (GDL). Herein, in situ grown carbon nanotubes (CNTs) on carbon paper as a gas diffusion layer (GDL) were fabricated by a plasma-enhanced chemical vapor deposition (PECVD) process. Fuel cells using CNT-based GDLs with nickel (II) nitrate loading of 1.6 mg cm(-2) show better performance compared with the GDLs which employ Vulcan XC-72 as the MPL. The pore size distribution and the gas permeability results revealed that the increasing density of CNT layer had two main effects on the pore structure of GDL: firstly, the increasing density of CNT layer decreased the macro pore volume and the open through pore volume of CNT-based GDL; secondly, the increasing density of CNT layer decreased the micro pore diameter of CNT-based GDL. The data obtained from the vapor permeability and the fuel cell performance tests indicated that the water flooding can be reduced by applying CNT-based GDLs. The electrochemical impedance spectroscopy (EIS) confirmed that the CNT-based GDL can effectively promote the mass transfer in the FCs which was attributed to its suitable hydrophobicity and proper structure. Copyright (C) 2015, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved

    Evaluating the screening value of serum light chain ratio, β2 microglobulin, lactic dehydrogenase and immunoglobulin in patients with multiple myeloma using ROC curves.

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    ObjectiveSeveral laboratory and imaging assays are required to diagnose multiple myeloma (MM). Serum and urine immunofixation electrophoresis are two key assays to diagnose MM, while they have not been extensively utilized in Chinese hospitals. Serum light chain (sLC), β2 microglobulin (β2-MG), lactic dehydrogenase (LDH), and immunoglobulin (Ig) are routinely measured in the majority of Chinese hospitals. Imbalance of sLC ratio (involved light chain/uninvolved light chain) is frequently observed in MM patients. This study aimed to evaluate the screening value of sLC ratio, β2-MG, LDH, and Ig in MM patients using receiver operating characteristic (ROC) curves.MethodsData of 303 suspected MM patients, who were admitted to the Taizhou Central Hospital between March 2015 and July 2021, were retrospectively analyzed. In total, 69 patients (MM arm) met the International Myeloma Working Group (IMWG) updated criteria for the diagnosis of MM, while 234 patients were non-MM (non-MM arm). All patients' sLC, β2-MG, LDH, and Ig were measured using commercially available kits according to the manufacturer's instructions. The ROC curve analysis was employed to assess the screening value of sLC ratio, β2-MG, LDH, creatinine (Cr) and Ig. The statistical analysis was carried out by SPSS 26.0 (IBM, Armonk, NY, USA) and MedCalc 19.0.4 (Ostend, Belgium) software.ResultsThere was no significant difference between the MM and non-MM arms in terms of gender, age and Cr. The median sLC ratio in the MM arm was 11.5333, which was significantly higher than that of 1.9293 in the non-MM arm (PConclusionThe triple combination strategy (sLC ratio, 3.2121; β2-MG, 1.95 mg/L; Ig, 46.4 g/L) is accompanied by remarkable sensitivity and specificity for screening MM in Chinese hospitals

    A frontal transcallosal inhibition loop mediates interhemispheric balance in visuospatial processing

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    Abstract Interhemispheric communication through the corpus callosum is required for both sensory and cognitive processes. Impaired transcallosal inhibition causing interhemispheric imbalance is believed to underlie visuospatial bias after frontoparietal cortical damage, but the synaptic circuits involved remain largely unknown. Here, we show that lesions in the mouse anterior cingulate area (ACA) cause severe visuospatial bias mediated by a transcallosal inhibition loop. In a visual-change-detection task, ACA callosal-projection neurons (CPNs) were more active with contralateral visual field changes than with ipsilateral changes. Unilateral CPN inactivation impaired contralateral change detection but improved ipsilateral detection by altering interhemispheric interaction through callosal projections. CPNs strongly activated contralateral parvalbumin-positive (PV+) neurons, and callosal-input-driven PV+ neurons preferentially inhibited ipsilateral CPNs, thus mediating transcallosal inhibition. Unilateral PV+ neuron activation caused a similar behavioral bias to contralateral CPN activation and ipsilateral CPN inactivation, and bilateral PV+ neuron activation eliminated this bias. Notably, restoring interhemispheric balance by activating contralesional PV+ neurons significantly improved contralesional detection in ACA-lesioned animals. Thus, a frontal transcallosal inhibition loop comprising CPNs and callosal-input-driven PV+ neurons mediates interhemispheric balance in visuospatial processing, and enhancing contralesional transcallosal inhibition restores interhemispheric balance while also reversing lesion-induced bias

    Inhibition of Monocytic Interleukin-12 Production by Candida albicans via Selective Activation of ERK Mitogen-Activated Protein Kinase

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    Our previous data demonstrated that live Candida albicans inhibits interleukin-12 (IL-12) production by human monocytes. Here we explored whether C. albicans inhibits IL-12 via a released factor and whether the inhibition is mediated via mitogen-activated protein kinase (MAPK) regulation. Supernatant fluids were obtained from cultured C. albicans (SC5314) as well as cultured Saccharomyces cerevisiae after 20 h of incubation. At 2 h postincubation of monocytes with heat-killed C. albicans (HKCA) (2:1) to stimulate IL-12, concentrated fungal supernatant fluids were added and incubated for an additional 20 h. The present data show that, unlike supernatant fluids obtained from S. cerevisiae, the C. albicans supernatant fluids significantly suppressed IL-12 production induced by HKCA. This suggested that the inhibition is Candida specific. A preliminary biochemical analysis revealed that this secretory IL-12 inhibitory factor is glycoprotein in nature. The inhibitory activity had no effect on the phagocytosis of yeasts. Supernatant fluids from C. albicans markedly induced the phosphorylation of ERK44/42 MAPK, but not p38 and SAPK, 1 min after they were added to monocytes. To test if the induction of ERK44/42 MAPK was central to the IL-12 inhibition, we used gamma interferon (IFN-γ) (1 ng/ml) plus lipopolysaccharide (LPS) (100 ng/ml) to stimulate IL-12 production by monocytes. The inhibition of ERK MAPK by the specific inhibitor PD 98059 significantly reduced phospho-ERK44/42 MAPK levels induced by C. albicans supernatant fluids in the IFN-γ-plus-LPS-driven monocytes. Concomitantly, PD 98059 reversed the IL-12 inhibitory activity of the C. albicans supernatant (P < 0.01). These data indicate that C. albicans can inhibit IL-12 production by secreting an ERK44/42 MAPK-stimulating factor and thus can attenuate effective immune responses
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