Centella asiatica aqueous extract modulates alpha-synuclein aggregation dynamics: in vitro evidence Manuscript Number: 13-1187R1 Author(s): Ruben Berrocal, Shantinath Satappa Indi, K.S. Jagannatha Rao, Krothapalli Raja Surya Sambasiva Rao, Padmaraju Vasudevaraju