For serum samples, 75 L of chloroform:methanol extraction solvent (v:v = 1:2) was added to 20 L of mouse serum, with the exception of the serum from WT, Gclc L-KO, Nrf2 L-KO, and L-DKO mouse serum, for which 20 L of mouse serum was combined with 180 L of chloroform:methanol extraction solvent (v:v = 1:2) containing internal standards at the final concentrations: 5 nM D7-Sphinganine (Avanti Polar Lipids Inc., Cat# 860658), 12.5 nM D3-Deoxysphinganine (Avanti Polar Lipids Inc., Cat# 860474), and SPLASH LIPIDOMIX (1:1000, Avanti Polar Lipids Inc., Cat# 330707)
Supplementary Table 1 (download XLSX Number of animals per treatment for each species
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Molecular actions of PPAR in lipid metabolism and inflammation
Most high-quality collagen is "hydrolyzed," meaning it has been broken down into smaller chains called peptides