Figure 2. Age-associated gene expression in subcutaneous adipose tissue.

(a) Heatmap of 1,134 age-associated genes (row) on 94 samples (column). Colors represent normalized gene expression values with blue for low expression and red for high expression. The age of each individual is displayed at the bottom and also illustrated in color bar at the top with dark green for young and yellow for old. (b) Scatter plot of 2 representative age-associated gene expression patterns PYH1N1 and EIF5AL1 in adipose tissue. Pearson-R value in the title represents the Pearson correlation coefficient between gene expression and age across all samples. The solid blue triangles plot male samples and solid red circle female samples. Similarly, the blue and red lines denote the regression lines for male and female samples, respectively.