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. 2024 Nov 21;13:56. doi: 10.1186/s40035-024-00449-2

Fig. 4.

Fig. 4

Evolution and applications of seed amplification assay (SAA) in differentiating between PD and MSA. Upper, outline of the history of SAA development; lower, three analytical methods: proteinase K digestion of the final products from the SAA, followed by Western blot detection; amplification kinetics analysis; and cryo-electron microscopy. These methods are utilized to differentiate between PD and MSA