Chikara Kumakiri

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BACKGROUND Because researchers have reported that antidepressants increase the expression of brain-derived neurotrophic factor (BDNF) in the rat hippocampus, we investigated whether serum BDNF levels may be used as a putative biological marker for major depressive disorders (MDD). METHODS We measured serum BDNF in the following three groups:(More)
BACKGROUND The hypofunction of the N-methyl-D-aspartate (NMDA) subtype of glutamate receptors has been implicated in the pathophysiology of schizophrenia. Several lines of evidence suggest that D-serine may function as an endogenous agonist of the glycine site of the NMDA receptor. The aim of this study was to examine whether serum levels of D- and L-serine(More)
Our previous study showed that serum brain-derived neurotrophic factor (BDNF) was significantly decreased in the antidepressant-naive patients with major depressive disorders. However, it was still unclear whether serum BDNF level was altered in drug-naive patients with schizophrenia. Using ELISA, we measured serum BDNF levels in antipsychotic-naive (n=15)(More)
BACKGROUND Several lines of evidence suggest that brain-derived neurotrophic factor (BDNF) plays a role in the regulation of eating behavior. Because of its role in eating behavior, which is especially relevant to eating disorders, BDNF is an attractive candidate for investigation of potential biological markers of eating disorders such as bulimia nervosa(More)
Several lines of evidence suggest that a certain type of personality or temperament is at risk for developing neuropsychiatric diseases, and that brain-derived neurotrophic factor (BDNF) might be involved in pathophysiology of neuropsychiatric diseases such as mood disorders. Considering the role of BDNF and personality traits in the neuropsychiatric(More)
Several lines of evidence suggest that D-serine may function as an endogenous agonist of the glycine site on the N-methyl-D-aspartate (NMDA) receptor that has been implicated in the pathophysiology of Alzheimer's disease (AD). The purpose of the study was to determine whether serum levels of D- and L-serine in patients with AD are altered as compared with(More)
Recently a relationship between serotonin transporter transcriptional control region (5-HTTLPR) polymorphism and anxiety related personality traits in Caucasians was reported. We performed PCR of DNAs from the blood for determining the 5-HTTLPR genotypes of 191 Japanese subjects, which were medical staff and students, and obtained Revised NEO Personality(More)
We screened for tau gene mutations among 24 Japanese (6 familial and 18 sporadic cases) and 4 Polish patients with frontotemporal dementia (FTD) using PCR-SSCP analysis followed by DNA sequencing. We identified 2 missense mutations in exon 10: N279K and P301L in 2 Japanese patients with familial FTD. Additionally 3 DNA polymorphisms: 2 known (3' exon 3 + 9,(More)
The present study was undertaken to examine the effects of the antidepressant, amitriptyline, and brain-derived neurotrophic factor (BDNF) on activator protein-1 (AP-1) DNA binding activity in the rat brain. Acute administration of amitriptyline (5 or 10 mg/kg) initially increased but then decreased AP-1 DNA binding activity in the rat frontal cortex and(More)
We have reported the family line with frontotemporal dementia (FTD) in Japan. This family line has so far included four patients. Patient II-1 (man) had a 10 year history of slowly progressive personality and behavioral changes and died at the age of 56. His neuropathological examination showed severe atrophy of the bilateral frontal and temporal cortices(More)