WP_SPHINGOLIPID_METABOLISM_OVERVIEW	https://www.gsea-msigdb.org/gsea/msigdb/mouse/geneset/WP_SPHINGOLIPID_METABOLISM_OVERVIEW	Asah1	Cerk	Cers1	Cers2	Cers3	Cers4	Cers6	Degs1	Degs2	Gdf1	Kdsr	Plpp1	Plpp3	Sgms1	Sgms2	Sgpl1	Sgpp1	Sgpp2	Smpd1	Sphk1	Sphk2	Sptlc1	Sptlc2	Ugcg	Ugt8a