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. 2015 Sep 1;32(17):1294–1300. doi: 10.1089/neu.2014.3698

FIG. 2.

FIG. 2.

Serum levels of SNTF after concussion are related to serum tau, but not S100β. The mean serum SNTF concentration at 12 and 36 h postconcussion is linearly related to the serum tau concentration measured at 1 h postconcussion (A), but not to the serum level of S100β at 1 h (B). For measures of either SNTF or tau at all other time points, the correlation between the two markers is less strong (data not shown). Levels of each marker are represented in units (see Methods for more details). SNTF, calpain-derived αII-spectrin N-terminal fragment.