BDNF and hemorrhagic stroke: This relation becomes more pronounced in individuals with haemorrhagic stroke, as found in a study where the BDNF level of those with intracerebral haemorrhage (ICH) score of 1 was 14.1 ± 3.7 ng/ml, while that of those with ICH score of 3 and above was 5.3 ± 2.3 ng/ml [60].