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. 2007 Nov 14;2(11):e1176. doi: 10.1371/journal.pone.0001176

Figure 5. Inhibition of Aβ1-42 fibril formation by arginine and praline.

Figure 5

AFM images (3×3 micron). Aβ1-42 was incubated in PB at 25°C for 24 h. (A) Inhibition of aggregation of Aβ1-42 by 0.2 M arginine. (B) Inhibition of aggregation of Aβ1-42 by 0.2 M proline. (C) Complete solubilization of Aβ1-42 at pH 10.5. No fibrils were observed. (D) Control experiment in which the fibrils formed. (Inset) Transmission electron micrograph of 24 h control sample at higher magnification (22,000×) showing spherical aggregating units.