Identification of phosphatidylcholines (PCs), containing arachidonic acid (ARA), eicosapentaenoic (EPA), and docosahexaenoic acid (DHA), and their distributions in the three groups of seminiferous tubules (STs).

All PC species, except those underlined in this table, were identified by MS/MS analysis, and their distributions determined by IMS. The underlined PCs were partial fragments identified by using Metabolite MS Search (http://www.hmdb.ca/labm/jsp/mlims/MSDbParent.jsp).a--, not detected.Identification of phosphatidylcholines (PCs), containing arachidonic acid (ARA), eicosapentaenoic (EPA), and docosahexaenoic acid (DHA), and their distributions in the three groups of seminiferous tubules (STs).