Stanne, TM;
Aberg, ND;
Nilsson, S;
Jood, K;
Blomstrand, C;
Andreasson, U;
Blennow, K;
... Jern, C; + view all
(2016)
Low Circulating Acute Brain-Derived Neurotrophic Factor Levels Are Associated With Poor Long-Term Functional Outcome After Ischemic Stroke.
Stroke
, 47
(7)
pp. 1943-1945.
10.1161/STROKEAHA.115.012383.
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Abstract
Background and Purpose—Brain-derived neurotrophic factor (BDNF) plays important roles in brain plasticity and repair, and it influences stroke outcomes in animal models. Circulating BDNF concentrations are lowered in patients with traumatic brain injury, and low BDNF predicts poor recovery after this injury. We sought to investigate whether circulating concentrations of BDNF are altered in the acute phase of ischemic stroke and whether they are associated with short- or long-term functional outcome. Methods—Serum concentrations of BDNF were measured in the Sahlgrenska Academy Study on Ischemic Stroke. The main outcomes were modified Rankin Scale (mRS) good (mRS score of 0–2) versus poor (mRS score of 3–6) at 3 months and 2 years after stroke, and good (mRS score of 0–2) versus poor (mRS score of 3–5) at 7 years after stroke. Results—Acute concentrations of BDNF were significantly lower in ischemic stroke cases (n=491) compared with controls (n=513). BDNF concentrations were not significantly associated with 3-month outcome. However, patients with BDNF in the lowest tertile had an increased risk of experiencing a poor outcome both at 2-year and 7-year follow-up, and these associations were independent of vascular risk factors and stroke severity (odds ratio, 2.6; confidence intervals, 1.4–4.9; P=0.002 and odds ratio, 2.1; confidence intervals, 1.1–3.9; P=0.028, respectively). Conclusions—Circulating concentrations of BDNF protein are lowered in the acute phase of ischemic stroke, and low levels are associated with poor long-term functional outcome. Further studies are necessary to confirm these associations and to determine the predictive value of BDNF in stroke outcomes.
| Type: | Article |
|---|---|
| Title: | Low Circulating Acute Brain-Derived Neurotrophic Factor Levels Are Associated With Poor Long-Term Functional Outcome After Ischemic Stroke |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1161/STROKEAHA.115.012383 |
| Publisher version: | http://doi.org/10.1161/STROKEAHA.115.012383 |
| Language: | English |
| Additional information: | This version is the author accepted manuscript. For information on re-use, please refer to the publisher’s terms and conditions. |
| Keywords: | Brain-derived neurotrophic factor, pathogenesis, risk factors, serum, stroke |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences > UCL Queen Square Institute of Neurology > Neurodegenerative Diseases |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1537956 |
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