One observation that may be of special interest is that cognitive function after stroke may be related to the rs6265 BDNF variant,49 supported by a recent report that the rs6265 BDNF variant was associated with poorer cognition at 1 year after stroke onset.12 The number of subjects in different BDNF studies have varied considerably – as exemplified in Table 3. Here, BDNF is linked to stroke disorder.