sphingosine Article 4 human 4 sphingolipid 3 Ceramides 2 Humans 2 Sphingolipids 2 Sphingosine 2 adult 2 ceramide 2 cohort analysis 2 controlled study 2 female 2 major clinical study 2 male 2 metabolism 2 metabolomics 2 nonhuman 2 unclassified drug 2 Acylcarnitine 1 Animals 1 Autism spectrum disorders 1 Bioenergesis 1 C reactive protein 1 CRISPR/Cas9 1 Charlson Comorbidity Index 1 Chromatography, Thin Layer 1 Citrus 1 Citrus unshiu 1 Clostridium 1