Modification of the brain's enzymogram of the pyrophosphatase with age.
D000375:Aging; D000818:Animals; D001921:Brain / Q000201:enzymology; D002850:Chromatography, Gel; D006168:Guinea Pigs; D007527:Isoenzymes / Q000032:analysis*; D011755:Pyrophosphatases / Q000032:analysis*
D007527:Isoenzymes; D011755:Pyrophosphatases