Fig. 4

Characteristics of the TAG species that change significantly with age in peri-gonadal adipose tissue. The average fold-change with regards to blank for TAG species by length (number of carbons) in peri-gonadal adipose tissue from reproductively young (green) and old (red) mice in the (a) TAG 1 method and (b) TAG 2 method. The average fold-change over blank for TAG species by number of unsaturation sites in peri-gonadal adipose tissue from reproductively young (green) and old (red) mice in the (c) TAG 1 method and (d) TAG 2 method (e). The average fold-change over blank for TAG species based on fatty acid composition in peri-gonadal adipose tissue from reproductively young (green) and old (red) mice in the (f) TAG 1 method and (g) TAG 2 method. Fatty acids are labeled as the length (number of carbons): number of unsaturation sites. Error bars represent standard error between samples. *P value ≤0.05 and **P value ≤0.01 by t-test