Nissl substance and ribosomal aggregates.
D000818:Animals; D001921:Brain / Q000254:growth & development / Q000378:metabolism*; D002247:Carbon Isotopes; D002462:Cell Membrane; D002499:Centrifugation, Density Gradient; D007930:Leucine / Q000378:metabolism; D008854:Microscopy, Electron; D009562:Nissl Bodies / Q000378:metabolism*; D010649:Phenylalanine / Q000378:metabolism; D051381:Rats; D012270:Ribosomes / Q000378:metabolism*
D002247:Carbon Isotopes; D010649:Phenylalanine; D007930:Leucine