Difference in Intestinal Flora and Characteristics of Plasma Metabonomics in Pneumoconiosis Patients.

From the two perspectives of intestinal flora and plasma metabolomics, the mechanism of occurrence and development of pneumoconiosis was explored to provide a new target for the prevention and treatment of pneumoconiosis. In this study, 16S ribosome DNA (16SrDNA) gene sequencing technology was used to analyze the differences in intestinal flora of each research group through operational taxonomic units (OUT) analysis, cluster analysis, principal component analysis (PCA), partial least square discriminant analysis (PLS-DA), Kyoto Encyclopedia of Genes and Genomes (KEGG), and other analytical methods were used to analyze the differences in plasma metabolites between the study groups. Metabonomics analysis showed that the plasma metabolites of pneumoconiosis patients were significantly different from those of normal people.

Comparison of properties of dust in alveolar of rats and the workplace.

Objectives: The purpose of this study was to analyze the α-SiO content, composition, dispersion, morphology, and free radical content of dust between the alveolar and the workplace, to explore the possible changes in the properties (especially the pathogenicity) of dust after it enters the lung.

Methods: We collected the dust in the workplace in HANDAN Coal mine. They were selected by a 400 mesh sieve and was made a suspension of 50 mg/ml, which would be used to perfuse into the trachea of rats.

Primary malignant melanoma of esophagus: a case report and review of literature.

Primary malignant melanoma of esophagus is a rare but highly aggressive neoplasm, with an incidence less than 0.2% of all primary esophagus neoplasms. There are no clinical differences from other forms of esophagus cancer.