Research Article

Transcriptome Analysis of Rat Lungs Exposed to Moxa Smoke after Acute Toxicity Testing

Figure 3

Scatter plots show differences in expression levels. The abscissa and ordinate represent the expression levels of genes/transcripts in the control and experimental groups, respectively. The values of horizontal and vertical coordinates were logarithmically transformed, and each point on the plot represents a specific gene/transcript. The abscissa value of a specific data point represents the expression level of a gene in the control sample, whereas the ordinate value represents the expression level of the same gene in the experimental sample. The red dots in the figure mark genes mark those showing significantly upregulated expression, whereas the blue dots mark those showing significantly downregulated expression. The gray dots indicate genes with no significant changes in expression levels. The greater the deviation from the diagonal line, the greater the difference in the expression level of a gene between the two samples; the closer a data point is to 0, the lower the expression level of that gene is.
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