
Keywords: اسید چرب بسیار زنجیره ای; SM; sphingomyelin; SMS; sphingomyelin synthase; Cer; ceramide; CerS; ceramide synthase; S1P; sphingosine 1 phosphate; LC/ESI-MS/MS; liquid chromatography/electrospray ionization-tandem mass spectrometry; VLCFA; very long-chain fatty acid; HexCer; hexosylc