Fenneropenaeus chinensis is a migratory marine species with a suitable growth at 18-30°C. To prolong breeding season and reduce mortality in winter, breeding new shrimp varieties with cold tolerance is essential. Genes upregulated and highly expressed at low temperature are reasonable candidate genetic markers for the breeding of cold tolerant strain variants.
View Article and Find Full Text PDFBACKGROUND Thymoma is the most common tumor of the anterior mediastinum, and can be caused by infrequent malignancies arising from the epithelial cells of the thymus. Unfortunately, blood-based diagnostic markers are not currently available. High-throughput sequencing technologies, such as RNA-seq with next-generation sequencing, have facilitated the detection and characterization of both coding and non-coding RNAs (ncRNAs), which play significant roles in genomic regulation, transcriptional and post-transcriptional regulation, and imprinting and epigenetic modification.
View Article and Find Full Text PDFMedicine (Baltimore)
February 2020
Liquid biopsy is an emerging technique for noninvasive detection of various cancers. Majority of liquid biopsy tests still, however, use solitary type of biomarkers with unsatisfactory sensitivity and specificity. To this end, a combined approach of circulating tumor cells (CTCs) and salivary mRNA biomarkers was evaluated for discriminating non-small-cell lung cancer (NSCLC) from healthy controls.
View Article and Find Full Text PDFObjective: To evaluate the efficacy and safety of transcatheter arterial chemoembolization (TACE) in hepatocellular carcinoma (HCC) with regional lymph node metastases.
Methods: Forty-eight patients with HCC and regional lymph node metastases were enrolled in this study. The patients were allocated into two groups: Group A (28 patients) underwent TACE for both intrahepatic tumors and lymph node metastasis and Group B (20 patients) received TACE for intrahepatic tumors only.
Objective: Pulmonary metastasis of hepatocellular carcinoma (HCC) could be defined as advanced HCC and systematic treatment is the main therapeutic modality. However, local therapy of intrahepatic tumor, which is significantly associated with the prognosis of HCC, remains important for advanced HCC.
Methods: Twenty-six HCC patients with pulmonary metastasis underwent intrahepatic transcatheter arterial chemoembolization (TACE).
A sandwich electrochemical immunosensor is described for carbohydrate antigen 72-4 (CA72-4) based on a dual amplification strategy with nanoporous gold (NPG) film as the sensor platform and polyaniline-Au asymmetric multicomponent nanoparticles (PANi-Au AMNPs) as labels. In this study, the second anti-CA72-4 antibody (Ab2) adsorbed onto the Au of the PANi-Au AMNPs, which could be simply synthesized by interfacial reaction and have many characteristics of polyaniline and Au nanoparticle, such as well-controlled size, high conductivity, biocompatibility and catalysis. NPG film was used as electrode substrate material to fix a large number of antibodies, due to its unique properties: good biocompatibility, high conductivity, large surface area, and stability.
View Article and Find Full Text PDFBiodiesel production from soybean oil with methanol was performed in the presence of a Brønsted acidic ionic liquid-based catalyst under ultrasound irradiation. The influences of various parameters on the transesterification reaction, including the amount of catalyst, the molar ratio of methanol to oil, the temperature and the ultrasound power, were investigated. The optimal conditions were: methanol/oil molar ratio of 9:1, 1.
View Article and Find Full Text PDFJ Environ Sci (China)
April 2010
The laccase-catalyzed conversion of bisphenol A (BPA) in aqueous solutions was studied in the absence and presence of nonionic surfactant Triton X-100. It was found that the addition of Triton X-100 into the reaction system increased the conversion of BPA, especially near the critical micelle concentration of Triton X-100. Also it was found that the stability of laccase was greatly improved in the presence of TritonX-100.
View Article and Find Full Text PDFImmobilization of enzymes on porous inorganic materials is very important for biocatalysis and biotransformation. In this paper, nanoporous gold (NPG) was used as a support for lignin peroxidase (LiP) immobilization. NPG with a pore size of 40-50 nm was prepared by dealloying Au/Ag alloy (50:50 wt%) for 17 h.
View Article and Find Full Text PDFOn the basis of the unique physical and chemical properties of nanoporous gold (NPG), which was obtained simply by dealloying Ag from Au/Ag alloy, an attempt was made in the present study to develop NPG-based electrochemical biosensors. The NPG-modified glassy carbon electrode (NPG/GCE) exhibited high-electrocatalytic activity toward the oxidation of nicotinamide adenine dinucleotide (NADH) and hydrogen peroxide (H(2)O(2)), which resulted in a remarkable decrease in the overpotential of NADH and H(2)O(2) electro-oxidation when compared with the gold sheet electrode. The high density of edge-plane-like defective sites and large specific surface area of NPG should be responsible for the electrocatalytic behavior.
View Article and Find Full Text PDFColloids Surf B Biointerfaces
February 2009
The electrochemical detection of dopamine (DA) at conventional solid electrodes was interfered by the coexisted ascorbic acid (AA). To circumvent this problem, many modified electrodes were tried. In this paper, an attempt was made to use nanoporous gold (NPG) as modifying materials.
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