The association of brain-derived neurotrophic factor Val66Met polymorphism with stroke outcomes: a cross-sectional pilot study
Eduard Tiozzo , Gary J. Farkas , Lauren T. Shapiro , Liz J. Caldera , Sebastian Koch , Clinton B. Wright , David Lowenstein , Tatjana Rundek
Exploration of Neuroscience ›› 2025, Vol. 4 ›› Issue (1) : 1006115
Aim: This study investigated the effect of brain-derived neurotrophic factor (BDNF) Val66Met polymorphism on post-stroke outcomes, including quality of life, physical fitness, cognitive function, depression, and overall disability.
Methods: The difference between Met carriers and non-Met carriers was analyzed for the entire sample and in pair-matched analysis, using age, sex, time since stroke, and race.
Results: We evaluated 89 stroke participants (mean age, 57 ± 10 years; 58% male; 54% White, and 49% Hispanic). Twelve participants (13%) had one copy of the BDNF Val66Met (Val/Met heterozygotes) and none had two copies (Met/Met homozygotes). Comparing Met (n = 12) and non-Met carriers (n = 77), no significant differences were observed in demographics or clinical characteristics, including motor or cognitive outcomes. In pair-matched analysis, a significant difference was observed for the Center for Epidemiological Studies Depression (CES-D) scale, where Met carriers had significantly greater CES-D scores than non-Met carriers (24 ± 16 vs. 9 ± 9, p = 0.011). Regardless of the chosen CES-D cut-off scores (≥ 16 vs. ≥ 20), more cases of depressive symptomatology were observed among those with the BDNF Val66Met polymorphism than those without it (p values < 0.05).
Conclusions: The BDNF Val66Met polymorphism may be associated with post-stroke depression but not motor or cognitive recovery.
stroke / recovery / genetic / polymorphism / BDNF
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| [2] |
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| [3] |
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| [4] |
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| [5] |
|
| [6] |
|
| [7] |
|
| [8] |
|
| [9] |
|
| [10] |
|
| [11] |
|
| [12] |
|
| [13] |
|
| [14] |
|
| [15] |
|
| [16] |
|
| [17] |
|
| [18] |
|
| [19] |
|
| [20] |
|
| [21] |
|
| [22] |
|
| [23] |
|
| [24] |
|
| [25] |
|
| [26] |
|
| [27] |
|
| [28] |
|
| [29] |
|
| [30] |
|
| [31] |
|
| [32] |
|
| [33] |
|
| [34] |
|
| [35] |
|
| [36] |
|
| [37] |
|
| [38] |
|
| [39] |
|
| [40] |
|
| [41] |
|
| [42] |
|
| [43] |
|
| [44] |
|
| [45] |
|
| [46] |
|
| [47] |
|
| [48] |
|
| [49] |
|
| [50] |
|
| [51] |
|
| [52] |
|
| [53] |
|
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