PMID-sentid Pub_year Sent_text comp_official_name comp_offsetprotein_name organism prot_offset 34022173-13 2021 NMDA injection resulted in mRNA upregulation of SphK1; however, SphK2 was reduced in the mouse retina. N-Methylaspartate 0-4 sphingosine kinase 1 Mus musculus 48-53