PMID- 24253237 OWN - NLM STAT- MEDLINE DCOM- 20141107 LR - 20211021 IS - 1435-1463 (Electronic) IS - 0300-9564 (Linking) VI - 121 IP - 4 DP - 2014 Apr TI - Plasma BDNF levels are correlated with aggressiveness in patients with amnestic mild cognitive impairment or Alzheimer disease. PG - 433-41 LID - 10.1007/s00702-013-1121-y [doi] AB - In the present study, we examined whether neuropsychiatric symptoms were correlated with plasma brain-derived neurotrophic factor (BDNF) levels as a state marker or were associated with the BDNF polymorphism Val66Met in patients with amnestic mild cognitive impairment (A-MCI) or Alzheimer disease (AD). One hundred and seventy-six outpatients with AD (n = 129) or A-MCI (n = 47) were selected and their plasma BDNF concentrations measured. Next, we investigated the correlation between the plasma BDNF level and the Behavioral Pathology in Alzheimer Disease (Behave-AD) subscale scores, which reflect neuropsychiatric symptoms. We also compared the plasma BDNF level and the Behave-AD subscale scores among the BDNF Val66Met genotypic groups. Among the seven Behave-AD subscale scores, aggressiveness was positively correlated with the plasma BDNF level (rho = 0.237, P < 0.005), but did not differ significantly among the three BDNF Val66Met genotypic groups. The Behave-AD total and other subscale scores did not differ significantly among the BDNF Val66Met genotypic groups and were not associated with the plasma BDNF level. Moreover, the plasma BDNF level did not differ significantly among the three BDNF Val66Met genotypic groups or between patients with A-MCI and those with AD. The plasma BDNF level was robustly correlated with aggressiveness, implying that the plasma BDNF level might be useful as a behavioral state marker in patients with AD or A-MCI. FAU - Nagata, Tomoyuki AU - Nagata T AD - Department of Psychiatry, The Jikei University School of Medicine, 3-25-8 Nishishimbashi, Minato-ku, Tokyo, 105-8471, Japan, t.nagata@jikei.ac.jp. FAU - Kobayashi, Nobuyuki AU - Kobayashi N FAU - Shinagawa, Shunichiro AU - Shinagawa S FAU - Yamada, Hisashi AU - Yamada H FAU - Kondo, Kazuhiro AU - Kondo K FAU - Nakayama, Kazuhiko AU - Nakayama K LA - eng PT - Journal Article DEP - 20131120 PL - Austria TA - J Neural Transm (Vienna) JT - Journal of neural transmission (Vienna, Austria : 1996) JID - 9702341 RN - 0 (Brain-Derived Neurotrophic Factor) RN - AE28F7PNPL (Methionine) RN - HG18B9YRS7 (Valine) SB - IM MH - Aged MH - Aged, 80 and over MH - *Aggression MH - Alzheimer Disease/*blood/genetics/*physiopathology MH - Brain-Derived Neurotrophic Factor/*blood/genetics MH - Cognitive Dysfunction/*blood/genetics/*physiopathology MH - Female MH - Genotype MH - Humans MH - Male MH - Methionine/genetics MH - Neuropsychological Tests MH - Polymorphism, Single Nucleotide/genetics MH - Psychiatric Status Rating Scales MH - Statistics as Topic MH - Valine/genetics EDAT- 2013/11/21 06:00 MHDA- 2014/11/08 06:00 CRDT- 2013/11/21 06:00 PHST- 2013/08/17 00:00 [received] PHST- 2013/11/08 00:00 [accepted] PHST- 2013/11/21 06:00 [entrez] PHST- 2013/11/21 06:00 [pubmed] PHST- 2014/11/08 06:00 [medline] AID - 10.1007/s00702-013-1121-y [doi] PST - ppublish SO - J Neural Transm (Vienna). 2014 Apr;121(4):433-41. doi: 10.1007/s00702-013-1121-y. Epub 2013 Nov 20.