Table 2.

Plasma levels of BDNF in study group divided into HD stages and control group.

HD	BDNF Level $\overline{\mathit{X} }\pm \mathbf{SD}$	Range
Preclinical	3.18 ± 4.49	0–8.33
Early	1.5 ± 1.09	0–3.6
Intermediate	1.55 ± 1.43	0–1.43
Advanced	1.44 ± 1.01	0–1.01
All HD patients	1.64 ± 1.62	0–8.33
Control group	3.71 ± 2.53	0–10.27

$\overline{X }$ ± SD—mean ± standard deviation, HD—Huntington’s disease.