[Mechanism of Huangqin Decoction in repairing intestinal barrier of ulcerative colitis by regulating tryptophan metabolism and activating AhR].

This study aims to elucidate the mechanism of Huangqin Decoction(HQD) in treating ulcerative colitis(UC) by investigating the relationship between tryptophan metabolism and intestinal barriers. In the in vivo experiments, 3% dextran sulfate sodium(DSS) was used to induce a mouse model of acute colitis, with mesalazine as a positive control. The therapeutic effect of HQD on mice with UC was evaluated according to body weight, disease activity index(DAI), colon length, and pathological changes.

Computer Tomography (CT)-based Screening of Hospitalized Patients with Moderate to Severe Chronic Obstructive Pulmonary Disease Complicated by Bronchiectasis Phenotype During Acute Exacerbation: A Clinical Analysis.

Background: In the past, many experts considered chronic obstructive pulmonary disease (COPD) and bronchiectasis to be separate, chronic respiratory diseases. Nonetheless, the widespread use of high-resolution lung computed tomography (CT) has led to the discovery that these diseases can occur alone or together.

Aim: The current study aimed to compare the effects of nutritional status on the clinical outcomes in moderate to severe COPD patients with bronchiectasis.

Dual pH-/Photo-Responsive Color Switching Systems for Dynamic Rewritable Paper.

Smart color switching materials that can change color with a fast response and a high reversibility have attracted increasing attention in color-on-demand applications. However, most of them can only respond to a single stimulus from their external environment, which dramatically limits their broad applications. To address this problem, we report a new strategy in developing a dual pH-/photo-responsive color switching system by coupling the pH-dependent and redox-driven color switchable neutral red (NR) with photoreductive TiO nanoparticles.

Social Capital, Financial Literacy, and Rural Household Entrepreneurship: A Mediating Effect Analysis.

In rural areas, entrepreneurship helps lift households out of poverty by alleviating unemployment and increasing income, and financial literacy plays an important role in promoting entrepreneurship. Social capital is a resource embedded in social relationships, the boundaries of which have been expanded by the development of information communications technologies (ICTs). This article aims to link social capital, financial literacy, and rural entrepreneurship through a partial mediating effect analysis.

On-Demand Regulation of Photoreversible Color Switching for Rewritable Paper and Transient Information Encryption.

The achievement of photoreversible color switching systems (PCSS) has offered great opportunities for fundamental studies and practical applications. However, the development of PCSS that possessing highly reversible cyclability and on-demand regulation of recoloration process remains a grand challenge. Herein, we report a hydrazine-mediated self-doping strategy for the synthesis of alkaline Ti self-doped TiO nanoparticles, enabling the TiO nanoparticles/methylene blue based PCSS with long photoreversible cyclability and rapid color switching rate.

Effects of a hydroxyapatite-coated nanotube surface of titanium on MC3T3-E1 cells: an in vitro study.

Purpose: To compare the biological behavior of mouse osteoblast-like cells (MC3T3-E1) on hydroxyapatite (HA)-coated nanotube surface of titanium and plasma-sprayed HA (HA-PS)-coated titanium surface.

Materials And Methods: The HA-coated nanotube surface of titanium were fabricated by anodization coupled with alternative immersion method (AIM). MC3T3-E1 osteoblast cells cultured in vitro were seeded onto these different surfaces; their growth states were examined by a confocal laser scanning microscope; the proliferation behavior, alkaline phosphatase (ALP) activity, osteocalcin (OCN) secretion, and analysis of osteoblastic gene expressions were also compared in detail.

Characterization and preosteoblastic behavior of hydroxyapatite-deposited nanotube surface of titanium prepared by anodization coupled with alternative immersion method.

The modification on the titanium (Ti) implant surface is an effective method to improve the bioactivity of Ti. In this study, a hydroxyapatite (HA)-deposited nanotubular Ti surface was prepared by anodization coupled with an alternative immersion method (AIM). Surface physicochemical characteristics including morphology, microstructure, composition, roughness were evaluated by field-emission scanning electron microscopy (FE-SEM), X-ray diffraction (XRD), Fourier-transformed infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM).

[A cross sectional survey on the prevalence of food intolerance and its determinants in Beijing, China].

Objective: To study the prevalence of food intolerance among attendants in a general hospital and to learn its related determinants in Beijing, China.

Methods: An cross sectional survey, from August 1st, 2008 to June 30th, 2009, was carried out, including 12 766 adults from Health Sciences Center, Chinese PLA General Hospital. Data for epidemiological analysis were entered (double entry) into computer and organized by EpiData 3.