Akimoto T, Kusumi I, Suzuki K, Koyama T: "Effects of calmodulin and protein kinase C modulators on transient Ca2+ increase and capacitative Ca2+ entry in human platelets: relevant to pathophysiology of bipolar disorder.", Prog NeuroPsychopharmacol Biol Psychiatry,31, 136-141 ,(2007)*
Akimoto T, Kusumi I, Suzuki K, Masui T, Koyama T: "Effects of valproate on serotonin-induced intracellular calcium mobilization in human platelets.", J Psychiat Neurosci,32, 17-22 ,(2007)*
Kusumi I, Masui T, Koyama T: "Long-term perospirone treatment with a single dose at bedtime in schizophrenia: Relevant to intermittent dopamine D2 receptor antagonism." Prog Neuropsychopharmacol Biol Psychiatry,32, 520-522 ,(2008)*
Nishikawa H, Inoue T, Masui T, Izumi T, Koyama T: "Effects of cytochrome P450 (CYP) 3A4 inhibitors on the anxiolytic action of tandospirone in rat contextual conditioned fear." Prog Neuropsychopharmacol Biol Psychiatry, 31(4), 926-31, (2007).
Nishikawa H, Inoue T, Izumi T, Koyama T: "Synergistic effects of tandospirone and selective serotonin reuptake inhibitors on the contextual conditioned fear stress response in rats." Eur Neuropsychopharmacol., 17(10), 643-650, (2007).
Abekawa T, Ito K, Koyama T: "Different effects of a single and repeated administration of clozapine on phencyclidine-induced hyperlocomotion and glutamate releases in the rat medial prefrontal cortex at short- and long-term withdrawal from this antipsychotic." Naunyn Schmiedeberg's Arch Pharmacol ,375, 261-271, (2007)
Abekawa T, Ito K, Nakagawa S, Nakato Y, Tsukasa Koyama: "Olanzapine and risperidone block a high dose of methamphetamine-induced schizophrenia-like behavioral abnormalities and accompanied apoptosis in the medial prefrontal cortex." Schizophr Res (in press)
Yuji Kitaichi, Takeshi Inoue, Takeshi Izumi, Shin Nakagawa, Teruaki Tanaka, Takuya Masui, Tsukasa Koyama: "Effect of co-administration of a serotonin-noradrenaline reuptake inhibitor and a dopamine agonist on extracellular monoamine concentrations in rats", European Journal of Pharmacology, 584, 285-290, (2008)*
Izumi T, Iwamoto N, Kitaichi Y, Kato A, Inoue T, Koyama T: "Effects of co-administration of antidepressants and monoamine oxidase inhibitors on 5-HT-related behavior in rats." Eur J Pharmacol., 565(1-3), 105-12, (2007).
Sakurai K,Tanaka N, Kamada K, Takeuchi F, Takeda Y, KoyamaT: "Magnetoencephalographic studies of focal epileptic activity in three patients with epilepsy suggestive of Lennox-Gastaut syndrome",Epileptic Disord ,9, 158-63 ,(2007)*
Masui T, Hashimoto R, Kusumi I, Suzuki K, Tanaka T, Nakagawa S, Suzuki T, Iwata N, Ozaki N, Kato T, Takeda M, Kunugi H, Koyama T.: "A possible association between missense polymorphism of the breakpoint cluster region gene and lithium prophylaxis in bipolar disorder.", Prog Neuropsychopharmacol Biol Psychiatry.,32, 204-208,(2008)*
Asakura S, Tajima O, Koyama T :" Fluvoxamine treatment of generalized social anxiety disorder in Japan : a randomized double-blind, placebo-controlled study.", Int J Neuropsychopharmacol, 10 , 263-274,(2007) *
Murashita M, Inoue T, Kusumi I, Nakagawa S, Ito K, Tanaka T, Izumi T, Hosoda H, Kangawa K, Koyama T: "Glucose and lipid metabolism of long-term risperidone monotherapy in patients with schizophrenia.", Psychiatry Clin Neurosci,61, 54-58, (2007)*
Murashita M, Kusumi I, Hosoda H, Kangawa K, Koyama T: "Acute administration of clozapine concurrently increases blood glucose and circulating plasma ghrelin levels in rat.", Psychoneuroendocrinology,32, 777-784 ,(2007)*
Toyomaki A, Kusumi I, Matsuyama T, Kako Y, Ito K, Koyama T: "Tone duration mismatch negativity deficits predict impairment of executive function in schizophrenia", Progress in Neuro-Psychopharmacology & Biological Psychiatry, 32(1), 95-99, (2008)
Toyomaki A, Yamamoto T: "Observation of Changes in Neural Activity Due to the Static Magnetic Field of an MRI Scanner.", Journal of Magnetic Resonance Imaging, 26, 1216-1221, (2007)
Kohno T, Shiga T, Toyomaki A, Kusumi I, Matsuyama T, Inoue T, Katoh C, Koyama T, Tamaki N: "Effects of lithium on brain glucose metabolism in healthy men.", J Clin Psychopharmacol., 27(6), 698-702, (2007)
