Clinical Value of Routine Biomarkers for Colorectal Patients: a Retrospective Study.

Background: Colorectal cancer (CRC) has always been one of the most common malignant tumors in the world. Whether the factors related to the diagnosis and risk of CRC can be found from the existing peripheral blood routine indicators.

Methods: The relevant data of patients with colorectal diseases in our hospital of about ten years were collected, the differences among the biomarkers in serum were analyzed, the risk factors were analyzed by logistic regression, the ROC was drawn, and the diagnostic efficacy was evaluated.

[Effects of long-term nitrogen addition on the nitrogen pools in a meadow steppe ecosystem].

Increasing atmospheric nitrogen (N) deposition greatly affects species diversity, productivity, and stability of ecosystems. It is thus of the great importance to understand how grassland N pools respond to the increased atmospheric N deposition. This study was conducted in a meadow steppe in Erguna, Inner Mongolia, China.

Mobility loss and its restoration in China grasslands.

Loss of mobility in rangeland use has emerged as a dominant theory to explain ecosystem degradation in the research area of rangeland ecology. The loss of mobility in rangeland use in China resulted from multiple interacting natural and social factors as well as policy changes. Re-establi-shing mobility in rangeland use is critical to rangeland restoration and sustainable management in China.

[Responses of soil potential carbon/nitrogen mineralization and microbial activities to extreme droughts in a meadow steppe].

The mineralization of soil carbon (C) and nitrogen (N) is a critical process in the cycling of C and N in terrestrial ecosystems, which is strongly controlled by water availability. In this study, we collected soil samples in a 3-year extreme drought experiment in a meadow steppe in Inner Mongolia, freeze-dried these samples, and measured the potential C and N mineralization rates and water sensitivity of soil microorganism by incubating soils under soil water contents (SWC) of 3%, 8%, 13%, 18%, 25% and 35%. The results showed that averaged across different SWC, the extreme drought treatment of reducing 66% precipitation in growing season significantly increased potential N mineralization rate by 14.

PD-L1 expression level in different thymoma stages and thymic carcinoma: a meta-analysis.

Background: The immune checkpoint ligand, programmed cell death 1 ligand 1 (PD-L1), is expressed in various tumors and associated with response to drugs that target programmed cell death protein 1. Previous studies have estimated the level of PD-L1 expression among different stages of thymoma and thymic carcinoma to evaluate its potential use as a diagnostic factor; however, its varying expression level has been problematic. We conducted this meta-analysis of published literature to evaluate PD-L1 expression in thymomas and thymic carcinomas.

The role of CXC cytokines as biomarkers and potential targets in hepatocellular carcinoma.

Hepatocellular carcinoma (HCC) is one of the deadliest cancers worldwide. At present, few effective biomarkers and targets are available for prognosis and treatment of HCC. Chemokines are a group of small proinflammatory chemoattractant cytokines binding to specific G-protein-coupled seven-span transmembrane receptors, which could recruit various immune cells to diverse tissues.

[Effects of nitrogen and plant growth promoter addition on the growth and competitiveness of Leymus chinensis].

With a greenhouse pot experiment, we investigated the effects of nitrogen (N) and plant growth promoter (brassinolide, BR) addition on the growth and competitive ability of three common plant species of typical steppe in Inner Mongolia, including Leymus chinensis, Astragalus adsurgens and Stipa krylovii. We added N at rates of 0, 0.1, 0.

Global Phosphoproteomic Analysis Reveals the Defense and Response Mechanisms of Seedling under Chilling Stress.

As a promising energy plant for biodiesel, is a tropical and subtropical shrub and its growth is affected by one of major abiotic stress, chilling. Therefore, we adopt the phosphoproteomic analysis, physiological measurement and ultrastructure observation to illustrate the responsive mechanism of seedling under chilling (4 °C) stress. After chilling for 6 h, 308 significantly changed phosphoproteins were detected.

A meta-analysis of association between serum iron levels and lung cancer risk.

Many studies conducted on the relationship between serum iron levels and lung cancer risk had produced inconsistent results. We therefore conducted a meta-analysis to determine whether serum iron levels were lower in lung cancer patients compared to those in controls.A literature survey was conducted by searching the PubMed, WanFang, CNKI, and SinoMed databases for articles published as of Mar 1, 2018.

[Construction of Graphitic Carbon Nitride-Bismuth Oxyiodide Layered Heterostructures and Their Photocatalytic Antibacterial Performance].

The thin layered graphitic carbon nitride (-CN) was prepared by the thermal polymerization process with urea as the precursor. The layered heterostructure of graphitic carbon nitride-bismuth oxyiodide (-CN/BiOI) was constructed by the in-situ synthetization of bismuth oxyiodide (BiOI) on the surface of the thin layered -CN. The morphology, specific surface area, crystal structure, molecular structure, light absorption properties, and surface properties were characterized by TEM, BET, XRD, FT-IR, UV-Vis DRS, and XPS, respectively.

OTX1 Contributes to Hepatocellular Carcinoma Progression by Regulation of ERK/MAPK Pathway.

Orthodenticlehomeobox 1 (OTX1) overexpression had previously been associated with the progression of several tumors. The present study aimed to determine the expression and role of OTX1 in human hepatocellular carcinoma (HCC). The expression level of OTX1 was examined by quantitative real-time PCR (qRT-PCR) in 10 samples of HCC and paired adjacent non-cancerous tissues, and by immunohistochemistry (IHC) analysis in 128 HCC samples and matched controls.

Methane emissions from the trunks of living trees on upland soils.

Upland forests are traditionally thought to be net sinks for atmospheric methane (CH4 ). In such forests, in situ CH4 fluxes on tree trunks have been neglected relative to soil and canopy fluxes. We measured in situ CH4 fluxes from the trunks of living trees and other surfaces, such as twigs and soils, using a static closed-chamber method, and estimated the CH4 budget in a temperate upland forest in Beijing.

[Effects of plant functional groups removal on the soil carbon, nitrogen pools in a Leymus chinensis community of typical steppe in Inner Mongolia].

A field plant functional groups (PFGs) removal experiment was conducted in 2005-2007 to study the effects of plant diversity in a Leymus chinensis community of typical steppe in Inner Mongolia on the topsoil (0-10 cm) carbon (C) and nitrogen (N) pools. In the three successive years, the topsoil total C and N contents had a slight change (< 15%). They changed little in 2005, but were significantly higher in 2006 than in 2007 (P < 0.

Aluminum-induced ethylene production is associated with inhibition of root elongation in Lotus japonicus L.

Inhibition of root elongation by toxic aluminum (Al(3+)) occurs rapidly and is one of the most distinct and earliest symptoms of Al toxicity. To elucidate mechanism underlying Al(3+)-induced inhibition of root elongation, we investigated the involvement of ethylene in Al(3+)-induced inhibition of root elongation using the legume model plants Lotus japonicus and Medicago truncatula. Root elongation of L.

Adsorption/desorption behavior between a novel amphoteric granular lignin adsorbent and reactive red K-3B in aqueous solutions.

A novel amphoteric granular lignin adsorbent (AGLA) was prepared using magnesium lignosulfonate as a raw material which was provided by a straw sulfite pulp mill in Guangdong Province, China. A reactive dye (red K-3B) was used as an adsorbate to investigate the adsorption behavior by static and mobile ways. The removal of reactive red K-3B was found to be initially pH and concentration dependent.

[The research on the law of greenhouse gases emission from warm temperate forest soils in Beijing region].

In situ measurements by closed chamber technique were done to investigate the law of greenhouse gases (Methane, carbon dioxide and Nitrous Oxide) fluxes emission from different warm temperate forest soils (Broad-leaved forest, Form. Quercus liaotungensis and Form. Pinus tabulae) of Dongling mountain in Beijing region.

Long-term impacts of land-use change on dynamics of tropical soil carbon and nitrogen pools.

Land-use changes, especially the conversion of native forest vegetation to cropland and plantations in tropical region, can alter soil C and N pools and N availability for plant uptake. Deforestation, followed by shifting cultivation and establishment of rubber tree plantation, is a common land-use change in Xishuangbanna, southwest China. However the influence of this kind of land-use change on soil C and N dynamics in this region remains poorly understood.

Epidemiological characteristics of an outbreak of severe acute respiratory syndrome in Dongcheng District of Beijing from March to May 2003.

Objective: To describe epidemiologic features of an outbreak of severe acute respiratory syndrome (SARS) in Dongcheng District, Beijing occurred in a period between March and May 2003.

Methods: Data of SARS cases notified from Dongcheng District Center for Disease Control and Prevention(CDC)and supplemented by other channels were collected. Clinicians and officials of local hospitals were interviewed in groups and medical records of fatal cases of SARS were reviewed to verify the diagnosis.

[An outbreak of SARS in Dongcheng District, Beijing during March to June 2003].

Objective: To describe epidemiological characteristics of an outbreak of severe acute respiratory syndrome (SRAS) in Dongcheng District, Beijing during March to June 2003.

Methods: Data of SARS cases notified from Dongcheng District Center for Disease Control and Prevention (CDC) and supplemented by other channels were collected. All data were input into dataset files by Microsoft Excel-2000 software and analyzed with SPSS version 10.