Fig. 5.
Sphingolipid metabolite profiles in the brain with neuronal expression of Cers2. (A–E) Free LCB levels in the brain, including dihydrosphingosine (dhSph; A), sphingosine (Sph, B), dihydrosphingosine-1-phosphate (dhS1P; C), sphingosine-1-phosphate (S1P; D), 1-deoxy-sphinganine (DeoSa; E), and 1-deoxy-sphingosine (DeoSph; F). (G) Total LCB levels, including free LCBs and LCB moieties in brain sphingolipids. (H) SPT activity of brain microsomes using 20 µM C16-CoA substrate. Four mice (n = 4) of wild type (+/+) and three mice (n = 3) of CerS1to/to or CerS1to/to;Tg-Cers2 were used. Values are mean ± SD. *P ≤ 0.05; **P ≤ 0.01 (one-way ANOVA, multiple comparisons).