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Tsukasa Koyama

This is a preview profile on BiomedExperts - the first literature-based scientific social network. It brings the right researchers together and allows them to collaborate online. Collexis and Dell provide the BiomedExperts network of +1.5 Million pre-calculated profiles free of charge to researchers worldwide.

Research Profile (preview)

Living Beings

Chemicals & Drugs

Physiology

Fear

Concepts & Ideas

Drug Dose-Response Relationship

Activities & Behaviors

Anatomy

Procedures

Microdialysis

Disorders

Bipolar Disorder

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Co-Publications
Name
48
Inoue, Takeshi
38
Kusumi, Ichiro
20
Kitaichi, Yuji
20
Abekawa, Tomohiro
20
Izumi, Takeshi
17
Ohmori, T
16
Suzuki, Katsuji
12
Odagaki, Yuji
11
Masui, Takuya
10
Nakagawa, Shin
10
Izumi, Takeshi
9
Hashimoto, Syogo
9
Nakagawa, Shin
9
Nishi, N
8
Muraki, Ihoko

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Publications

TOP 3
Hashimoto Shinji; Inoue Takeshi; Muraki Ihoko; Koyama Tsukasa
Effects of acute citalopram on the expression of conditioned freezing in naive versus chronic citalopram-treated rats.
Boku Shuken; Nakagawa Shin; Masuda Takahiro; Nishikawa Hiroyuki; Kato Akiko; Kitaichi Yuji; Inoue Takeshi; Koyama Tsukasa
Glucocorticoids and lithium reciprocally regulate the proliferation of adult dentate gyrus-derived neural precursor cells through GSK-3beta and beta-catenin/TCF pathway.
Nishikawa Hiroyuki; Inoue Takeshi; Masui Takuya; Izumi Takeshi; Nakagawa Shin; Koyama Tsukasa
Pharmacokinetic interaction between tandospirone and fluvoxamine in the rat contextual conditioned fear stress model and its functional consequence: Involvement of cytochrome P450 3A4.

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All Publications

2009: Hashimoto Shinji; Inoue Takeshi; Muraki Ihoko; Koyama Tsukasa
Effects of acute citalopram on the expression of conditioned freezing in naive versus chronic citalopram-treated rats.
Progress in neuro-psychopharmacology & biological psychiatry 2009;33(1):113-7.
2009: Boku Shuken; Nakagawa Shin; Masuda Takahiro; Nishikawa Hiroyuki; Kato Akiko; Kitaichi Yuji; Inoue Takeshi; Koyama Tsukasa
Glucocorticoids and lithium reciprocally regulate the proliferation of adult dentate gyrus-derived neural precursor cells through GSK-3beta and beta-catenin/TCF pathway.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 2009;34(3):805-15.
2008: Nishikawa Hiroyuki; Inoue Takeshi; Masui Takuya; Izumi Takeshi; Nakagawa Shin; Koyama Tsukasa
Pharmacokinetic interaction between tandospirone and fluvoxamine in the rat contextual conditioned fear stress model and its functional consequence: Involvement of cytochrome P450 3A4.
Psychiatry and clinical neurosciences 2008;62(5):591-6.
2008: Muraki Ihoko; Inoue Takeshi; Hashimoto Shinji; Izumi Takeshi; Koyama Tsukasa
Effect of different challenge doses after repeated citalopram treatment on extracellular serotonin level in the medial prefrontal cortex: in vivo microdialysis study.
Psychiatry and clinical neurosciences 2008;62(5):568-74.
2008: Muraki Ihoko; Inoue Takeshi; Koyama Tsukasa
Effect of co-administration of the selective 5-HT1A receptor antagonist WAY 100,635 and selective 5-HT1B/1D receptor antagonist GR 127,935 on anxiolytic effect of citalopram in conditioned fear stress in the rat.
European journal of pharmacology 2008;586(1-3):171-8.
2008: Kitaichi Yuji; Inoue Takeshi; Izumi Takeshi; Nakagawa Shin; Tanaka Teruaki; Masui Takuya; Koyama Tsukasa
Effect of co-administration of a serotonin-noradrenaline reuptake inhibitor and a dopamine agonist on extracellular monoamine concentrations in rats.
European journal of pharmacology 2008;584(2-3):285-90.
2008: Kusumi Ichiro; Masui Takuya; Koyama Tsukasa
Long-term perospirone treatment with a single dose at bedtime in schizophrenia: relevant to intermittent dopamine D2 receptor antagonism.
Progress in neuro-psychopharmacology & biological psychiatry 2008;32(2):520-2.
2008: Masui Takuya; Hashimoto Ryota; Kusumi Ichiro; Suzuki Katsuji; Tanaka Teruaki; Nakagawa Shin; Suzuki Tatsuyo; Iwata Nakao; Ozaki Norio; Kato Tadafumi; Takeda Masatoshi; Kunugi Hiroshi; Koyama Tsukasa
A possible association between missense polymorphism of the breakpoint cluster region gene and lithium prophylaxis in bipolar disorder.
Progress in neuro-psychopharmacology & biological psychiatry 2008;32(1):204-8.
2008: Toyomaki Atsuhito; Kusumi Ichiro; Matsuyama Testsuaki; Kako Yuki; Ito Koki; Koyama Tsukasa
Tone duration mismatch negativity deficits predict impairment of executive function in schizophrenia.
Progress in neuro-psychopharmacology & biological psychiatry 2008;32(1):95-9.
2007: Tao Hiroki; Kitagawa Nobuki; Kako Yuki; Yamanaka Hiroyoshi; Ito Koichi; Denda Kenzo; Koyama Tsukasa
A case of anorexia nervosa with Marchiafava-Bignami Disease that responded to high-dose intravenous corticosteroid administration.
Psychiatry research 2007;156(2):181-4.
2007: Nishikawa Hiroyuki; Inoue Takeshi; Izumi Takeshi; Koyama Tsukasa
Synergistic effects of tandospirone and selective serotonin reuptake inhibitors on the contextual conditioned fear stress response in rats.
European neuropsychopharmacology : the journal of the European College of Neuropsychopharmacology 2007;17(10):643-50.
2007: Tanaka Teruaki; Koyama Tsukasa
[Proper use of antidepressants in the acute and maintenance phase treatment of depression]
Nippon rinsho. Japanese journal of clinical medicine 2007;65(9):1639-44.
2007: Murashita Mari; Kusumi Ichiro; Hosoda Hiroshi; Kangawa Kenji; Koyama Tsukasa
Acute administration of clozapine concurrently increases blood glucose and circulating plasma ghrelin levels in rats.
Psychoneuroendocrinology 2007;32(7):777-84.
2007: Izumi Takeshi; Iwamoto Nobuyuki; Kitaichi Yuji; Kato Akiko; Inoue Takeshi; Koyama Tsukasa
Effects of co-administration of antidepressants and monoamine oxidase inhibitors on 5-HT-related behavior in rats.
European journal of pharmacology 2007;565(1-3):105-12.
2007: Nishikawa Hiroyuki; Inoue Takeshi; Masui Takuya; Izumi Takeshi; Koyama Tsukasa
Effects of cytochrome P450 (CYP) 3A4 inhibitors on the anxiolytic action of tandospirone in rat contextual conditioned fear.
Progress in neuro-psychopharmacology & biological psychiatry 2007;31(4):926-31.
2007: Kako Yuki; Niwa Yusuke; Toyomaki Atsuhito; Yamanaka Hiroyoshi; Kitagawa Nobuki; Denda Kenzo; Koyama Tsukasa
A case of adult attention-deficit/hyperactivity disorder alleviated by milnacipran.
Progress in neuro-psychopharmacology & biological psychiatry 2007;31(3):772-5.
2007: Murashita Mari; Inoue Takeshi; Kusumi Ichiro; Nakagawa Shin; Itoh Kouichi; Tanaka Teruaki; Izumi Takeshi; Hosoda Hiroshi; Kangawa Kenji; Koyama Tsukasa
Glucose and lipid metabolism of long-term risperidone monotherapy in patients with schizophrenia.
Psychiatry and clinical neurosciences 2007;61(1):54-8.
2007: Akimoto Tatsuyuki; Kusumi Ichiro; Suzuki Katsuji; Masui Takuya; Koyama Tsukasa
Effects of valproate on serotonin-induced intracellular calcium mobilization in human platelets.
Journal of psychiatry & neuroscience : JPN 2007;32(1):17-22.
2007: Akimoto Tatsuyuki; Kusumi Ichiro; Suzuki Katsuji; Koyama Tsukasa
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.
Progress in neuro-psychopharmacology & biological psychiatry 2007;31(1):136-41.
2007: Tanaka Teruaki; Inoue Takeshi; Suzuki Katsuji; Kitaichi Yuji; Masui Takuya; Denda Kenzo; Koyama Tsukasa
[Clinical relevance of antidepressant-induced activation syndrome: from a perspective of bipolar spectrum disorder]
Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica 2007;109(8):730-42.
2006: Inoue Takeshi; Nakagawa Shin; Kitaichi Yuji; Izumi Takeshi; Tanaka Teruaki; Masui Takuya; Kusumi Ichiro; Denda Kenzo; Koyama Tsukasa
Long-term outcome of antidepressant-refractory depression: the relevance of unrecognized bipolarity.
Journal of affective disorders 2006;95(1-3):61-7.
2006: Masui Takuya; Kusumi Ichiro; Takahashi Yoshito; Koyama Tsukasa
Effect of carbamazepine on the single oral dose pharmacokinetics of perospirone and its active metabolite.
Progress in neuro-psychopharmacology & biological psychiatry 2006;30(7):1330-3.
2006: Ito K; Abekawa T; Koyama T
Valproate blocks high-dose methamphetamine-induced behavioral cross-sensitization to locomotion-inducing effect of dizocilpine (MK-801), but not methamphetamine.
Psychopharmacology 2006;186(4):525-33.
2006: Inoue Takeshi; Nakagawa Shin; Izumi Takeshi; Kitaichi Yuji; Koyama Tsukasa
Effect of combined treatment with noradrenaline and serotonin reuptake inhibitors on conditioned freezing.
European journal of pharmacology 2006;540(1-3):91-5.
2006: Izumi Takeshi; Inoue Takeshi; Kitaichi Yuji; Nakagawa Shin; Koyama Tsukasa
Target brain sites of the anxiolytic effect of citalopram, a selective serotonin reuptake inhibitor.
European journal of pharmacology 2006;534(1-3):129-32.
2006: Izumi Takeshi; Iwamoto Nobuyuki; Kitaichi Yuji; Kato Akiko; Inoue Takeshi; Koyama Tsukasa
Effects of co-administration of a selective serotonin reuptake inhibitor and monoamine oxidase inhibitors on 5-HT-related behavior in rats.
European journal of pharmacology 2006;532(3):258-64.
2006: Kitaichi Yuji; Inoue Takeshi; Nakagawa Shin; Izumi Takeshi; Koyama Tsukasa
Effect of co-administration of subchronic lithium pretreatment and acute MAO inhibitors on extracellular monoamine levels and the expression of contextual conditioned fear in rats.
European journal of pharmacology 2006;532(3):236-45.
2006: Li XiaoBai; Inoue Takeshi; Abekawa Tomohiro; Weng ShiMin; Nakagawa Shin; Izumi Takeshi; Koyama Tsukasa
5-HT1A receptor agonist affects fear conditioning through stimulations of the postsynaptic 5-HT1A receptors in the hippocampus and amygdala.
European journal of pharmacology 2006;532(1-2):74-80.
2006: Masui Takuya; Kusumi Ichiro; Takahashi Yoshito; Koyama Tsukasa
Effects of itraconazole and tandospirone on the pharmacokinetics of perospirone.
Therapeutic drug monitoring 2006;28(1):73-5.
2006: Masui Takuya; Hashimoto Ryota; Kusumi Ichiro; Suzuki Katsuji; Tanaka Teruaki; Nakagawa Shin; Kunugi Hiroshi; Koyama Tsukasa
A possible association between the -116C/G single nucleotide polymorphism of the XBP1 gene and lithium prophylaxis in bipolar disorder.
The international journal of neuropsychopharmacology / official scientific journal of the Collegium Internationale Neuropsychopharmacologicum (CINP) 2006;9(1):83-8.
2006: Denda Kenzo; Kako Yuki; Kitagawa Nobuki; Koyama Tsukasa
Assessment of depressive symptoms in Japanese school children and adolescents using the Birleson Depression Self-Rating Scale.
International journal of psychiatry in medicine 2006;36(2):231-41.
2005: Kusumi Ichiro; Masui Takuya; Kakiuchi Chihiro; Suzuki Katsuji; Akimoto Tatsuyuki; Hashimoto Ryota; Kunugi Hiroshi; Kato Tadafumi; Koyama Tsukasa
Relationship between XBP1 genotype and personality traits assessed by TCI and NEO-FFI.
Neuroscience letters 2005;391(1-2):7-10.
2005: Toda Hiroyuki; Kusumi Ichiro; Sasaki Yukiya; Ito Koichi; Koyama Tsukasa
Relationship between plasma concentration levels of risperidone and clinical effects in the treatment of delirium.
International clinical psychopharmacology 2005;20(6):331-3.
2005: Kitaichi Yuji; Inoue Takeshi; Izumi Takeshi; Nakagawa Shin; Kato Akiko; Koyama Tsukasa
Subchronic milnacipran treatment increases basal extracellular noradrenaline concentrations in the medial prefrontal cortex of rats.
European journal of pharmacology 2005;520(1-3):37-42.
2005: Inoue Takeshi; Izumi Takeshi; Li Xiao Bai; Kitaichi Yuji; Nakagawa Shin; Koyama Tsukasa
Effect of a dopamine D1/5 receptor antagonist on haloperidol-induced inhibition of the acquisition of conditioned fear.
European journal of pharmacology 2005;519(3):253-8.
2005: Kitaichi Yuji; Inoue Takeshi; Nakagawa Shin; Izumi Takeshi; Koyama Tsukasa
Effect of milnacipran on extracellular monoamine concentrations in the medial prefrontal cortex of rats pre-treated with lithium.
European journal of pharmacology 2005;516(3):219-26.
2005: Masui Takuya; Kusumi Ichiro; Takahashi Yoshito; Koyama Tsukasa
Efficacy of carbamazepine against neuroleptic-induced akathisia in treatment with perospirone: case series.
Progress in neuro-psychopharmacology & biological psychiatry 2005;29(2):343-6.
2005: Murashita Mari; Kusumi Ichiro; Inoue Takeshi; Takahashi Yoshito; Hosoda Hiroshi; Kangawa Kenji; Koyama Tsukasa
Olanzapine increases plasma ghrelin level in patients with schizophrenia.
Psychoneuroendocrinology 2005;30(1):106-10.
2004: Li XiaoBai; Inouei Takeshi; Abekawai Tomohiro; YiRui Fang; Koyama Tsukasa
Effect of MS-153 on the acquisition and expression of conditioned fear in rats.
European journal of pharmacology 2004;505(1-3):145-9.
2004: Kusumi Ichiro; Masui Takuya; Kakiuchi Chihiro; Suzuki Katsuji; Akimoto Tatsuyuki; Hashimoto Ryota; Kunugi Hiroshi; Kato Tadafumi; Koyama Tsukasa
Lack of association between XBP1 genotype and calcium signaling in the platelets of healthy subjects.
Neuroscience letters 2004;369(1):1-3.
2004: Inoue Takeshi; Li Xiao Bai; Abekawa Tomohiro; Kitaichi Yuji; Izumi Takeshi; Nakagawa Shin; Koyama Tsukasa
Selective serotonin reuptake inhibitor reduces conditioned fear through its effect in the amygdala.
European journal of pharmacology 2004;497(3):311-6.
2004: Inoue Takeshi; Izumi Takeshi; Li Xiao-Bai; Huang Ji Zhong; Kitaichi Yuji; Nakagawa Shin; Koyama Tsukasa
[Biological basis of anxiety disorders and serotonergic anxiolytics]
Nihon shinkei seishin yakurigaku zasshi = Japanese journal of psychopharmacology 2004;24(3):125-31.
2004: Izumi Takeshi; Kitaichi Yuji; Nakagawa Shin; Inoue Takeshi; Koyama Tsukasa
Single footshock attenuates c-Fos expression induced by 5-HT2A receptor agonist (+/-)-2,5-dimethoxy-4-iodoamphetamine hydrochloride in rat brain.
Brain research 2004;1011(1):129-34.
2004: Kitaichi Yuji; Inoue Takeshi; Nakagawa Shin; Izumi Takeshi; Koyama Tsukasa
Effect of co-administration of lithium and reboxetine on extracellular monoamine concentrations in rats.
European journal of pharmacology 2004;489(3):187-91.
2004: Suzuki Katsuji; Kusumi Ichiro; Akimoto Tatsuyuki; Sasaki Yuki; Koyama Tsukasa
Effects of lithium and valproate on agonist-induced platelet intracellular calcium mobilization: relevance to myosin light chain kinase.
Progress in neuro-psychopharmacology & biological psychiatry 2004;28(1):67-72.
2004: Abekawa Tomohiro; Kitaichi Yuuichi; Matsuyama Tetsuaki; Koyama Tsukasa
[Treatment of "the premonitory state of schizophrenia" with atypical antipsychotics]
Seishin shinkeigaku zasshi = Psychiatria et neurologia Japonica 2004;106(11):1357-72.
2003: Sasaki Yukiya; Matsuyama Tetsuaki; Inoue Seishiro; Sunami Tomoko; Inoue Takeshi; Denda Kenzo; Koyama Tsukasa
A prospective, open-label, flexible-dose study of quetiapine in the treatment of delirium.
The Journal of clinical psychiatry 2003;64(11):1316-21.
2003: Suzuki Katsuji; Kusumi Ichiro; Akimoto Tatsuyuki; Sasaki Yuki; Koyama Tsukasa
Altered 5-HT-induced calcium response in the presence of staurosporine in blood platelets from bipolar disorder patients.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 2003;28(6):1210-4.
2003: Inoue Takeshi; Kitaichi Yuji; Koyama Tsukasa
[Treatment strategy of refractory depression and its presynaptic mechanism of action]
Nihon shinkei seishin yakurigaku zasshi = Japanese journal of psychopharmacology 2003;23(1):11-20.
2003: Suzuki Katsuji; Koyama Tsukasa
[Pharmacokinetics and drug interaction of antidepressants and anti-manic drugs]
Ryoikibetsu shokogun shirizu 2003;(38):366-9.
2003: Tanaka Teruaki; Koyama Tsukasa
[Adverse effects of antidepressants and antimanics]
Ryoikibetsu shokogun shirizu 2003;(38):362-5.
2003: Nakagawa Shin; Koyama Tsukasa
[Mechanism and clinical effects of drugs for mood disorder]
Ryoikibetsu shokogun shirizu 2003;(38):358-61.
2003: Nakagawa Shin; Koyama Tsukasa
[Extrapyramidal syndrome]
Ryoikibetsu shokogun shirizu 2003;(38):179-82.
2002: Odagaki Yuji; Koyama Tsukasa
Epinephrine- and thrombin-stimulated high-affinity GTPase activity in platelet membranes from patients with psychiatric disorders.
Psychiatry research 2002;112(2):111-9.
2002: Izumi Takeshi; Suzuki Katsuji; Inoue Takeshi; Li Xiao Bai; Maki Yuji; Muraki Ihoko; Kitaichi Yuji; Hashimoto Syogo; Koyama Tsukasa
Long-lasting change in 5-HT2A receptor-mediated behavior in rats after a single footshock.
European journal of pharmacology 2002;452(2):199-204.
2002: Kusumi Ichiro; Suzuki Katsuji; Sasaki Yuki; Kameda Kensuke; Sasaki Tsukasa; Koyama Tsukasa
Serotonin 5-HT(2A) receptor gene polymorphism, 5-HT(2A) receptor function and personality traits in healthy subjects: a negative study.
Journal of affective disorders 2002;68(2-3):235-41.
2002: Abekawa T; Honda M; Ito K; Inoue T; Koyama T
Effect of MS-153 on the development of behavioral sensitization to locomotion- and ataxia-inducing effects of phencyclidine.
Psychopharmacology 2002;160(2):122-31.
2002: Abekawa Tomohiro; Honda Minoru; Ito Kouichi; Inoue Takeshi; Koyama Tsukasa
Effect of MS-153 on the development of behavioral sensitization to stereotypy-inducing effect of phencyclidine.
Brain research 2002;926(1-2):176-80.
2001: Kameda K; Tanaka T; Miura J; Kusumi I; Koyama T
Effects of acute citalopram treatment on the methamphetamine-induced locomotor activity.
Progress in neuro-psychopharmacology & biological psychiatry 2001;25(8):1583-95.
2001: Li X B; Inoue T; Hashimoto S; Koyama T
Effect of chronic administration of flesinoxan and fluvoxamine on freezing behavior induced by conditioned fear.
European journal of pharmacology 2001;425(1):43-50.
2001: Inoue T; Koyama T
[Reversible inhibitor of MAO-A(RIMA)]
Nippon rinsho. Japanese journal of clinical medicine 2001;59(8):1530-4.
2001: Koyama T; Inoue T
[Tricyclic antidepressant, tetracyclic antidepressant]
Nippon rinsho. Japanese journal of clinical medicine 2001;59(8):1513-7.
2001: Suzuki K; Kusumi I; Sasaki Y; Koyama T
Serotonin-induced platelet intracellular calcium mobilization in various psychiatric disorders: is it specific to bipolar disorder?
Journal of affective disorders 2001;64(2-3):291-6.
2001: Muraki I; Inoue T; Hashimoto S; Izumi T; Ito K; Koyama T
Effect of subchronic lithium treatment on citalopram-induced increases in extracellular concentrations of serotonin in the medial prefrontal cortex.
Journal of neurochemistry 2001;76(2):490-7.
2001: Odagaki Y; Koyama T
Identification of galpha subtype(s) involved in gamma-aminobutyric acid(B) receptor-mediated high-affinity guanosine triphosphatase activity in rat cerebral cortical membranes.
Neuroscience letters 2001;297(2):137-41.
2001: Abekawa T; Ohmori T; Honda M; Ito K; Koyama T
Effect of low doses of L-NAME on methamphetamine-induced dopaminergic depletion in the rat striatum.
Journal of neural transmission (Vienna, Austria : 1996) 2001;108(11):1219-30.
2001: Kameda K; Miura J; Suzuki K; Kusumi I; Tanaka T; Koyama T
Effects of lithium on dopamine D2 receptor expression in the rat brain striatum.
Journal of neural transmission (Vienna, Austria : 1996) 2001;108(3):321-34.
2000: Izumi T; Inoue T; Kitagawa N; Nishi N; Shimanaka S; Takahashi Y; Kusumi I; Odagaki Y; Denda K; Ohmori T; Koyama T
Open pergolide treatment of tricyclic and heterocyclic antidepressant-resistant depression.
Journal of affective disorders 2000;61(1-2):127-32.
2000: Kusumi I; Suzuki K; Sasaki Y; Kameda K; Koyama T
Treatment response in depressed patients with enhanced Ca mobilization stimulated by serotonin.
Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology 2000;23(6):690-6.
2000: Maki Y; Inoue T; Izumi T; Muraki I; Ito K; Kitaichi Y; Li X; Koyama T
Monoamine oxidase inhibitors reduce conditioned fear stress-induced freezing behavior in rats.
European journal of pharmacology 2000;406(3):411-8.
2000: Nishi N; Odagaki Y; Koyama T
Pharmacological characterization of metabotropic glutamate receptor-mediated high-affinity GTPase activity in rat cerebral cortical membranes.
British journal of pharmacology 2000;130(7):1664-70.
2000: Inoue T; Izumi T; Maki Y; Muraki I; Koyama T
Effect of the dopamine D(1/5) antagonist SCH 23390 on the acquisition of conditioned fear.
Pharmacology, biochemistry, and behavior 2000;66(3):573-8.
2000: Honma H; Kohsaka M; Fukuda N; Kobayashi R; Sakakibara S; Koyama T
Differences in electroencephalogram power densities between genuine narcolepsy and secondary narcolepsy.
Psychiatry and clinical neurosciences 2000;54(3):326-7.
2000: Abekawa T; Ohmori T; Ito K; Koyama T
D1 dopamine receptor activation reduces extracellular glutamate and GABA concentrations in the medial prefrontal cortex.
Brain research 2000;867(1-2):250-4.
2000: Ito K; Ohmori T; Abekawa T; Koyama T
The role of benzodiazepine receptors in the acquisition and expression of behavioral sensitization to methamphetamine.
Pharmacology, biochemistry, and behavior 2000;65(4):705-10.
2000: Kameda K; Kusumi I; Suzuki K; Miura J; Sasaki Y; Koyama T
Effects of citalopram on dopamine D2 receptor expression in the rat brain striatum.
Journal of molecular neuroscience : MN 2000;14(1-2):77-86.
2000: Odagaki Y; Nishi N; Koyama T
Functional coupling of GABA(B) receptors with G proteins that are sensitive to N-ethylmaleimide treatment, suramin, and benzalkonium chloride in rat cerebral cortical membranes.
Journal of neural transmission (Vienna, Austria : 1996) 2000;107(10):1101-16.
2000: Kusumi I; Takahashi Y; Suzuki K; Kameda K; Koyama T
Differential effects of subchronic treatments with atypical antipsychotic drugs on dopamine D2 and serotonin 5-HT2A receptors in the rat brain.
Journal of neural transmission (Vienna, Austria : 1996) 2000;107(3):295-302.
1999: Odagaki Y; Nishi N; Nakagawa S; Koyama T
Activation of G proteins by neuropeptide Y and gamma-aminobutyric acid(B) receptor agonists in rat cerebral cortical membranes through distinct modes of action.
The Journal of pharmacology and experimental therapeutics 1999;291(3):1250-6.
1999: Muraki I; Inoue T; Hashimoto S; Izumi T; Ito K; Ohmori T; Koyama T
Effect of subchronic lithium carbonate treatment on anxiolytic-like effect of citalopram and MKC-242 in conditioned fear stress in the rat.
European journal of pharmacology 1999;383(3):223-9.
1999: Izumi T; Inoue T; Tsuchiya K; Hashimoto S; Ohmori T; Koyama T
Effects of the benzodiazepine antagonist flumazenil on conditioned fear stress in rats.
Progress in neuro-psychopharmacology & biological psychiatry 1999;23(7):1247-58.
1999: Kusumi I; Koyama T
Algorithms for the treatment of acute side effects induced by neuroleptics.
Psychiatry and clinical neurosciences 1999;53 Suppl():S19-22.
1999: Hashimoto S; Inoue T; Koyama T
Effects of conditioned fear stress on serotonin neurotransmission and freezing behavior in rats.
European journal of pharmacology 1999;378(1):23-30.
1998: Takahashi Y; Kusumi I; Ishikane T; Matsubara S; Koyama T
In vivo occupation of dopamine D1, D2 and serotonin (5-HT)2A receptors by sertindole in the rat brain.
Journal of psychiatry & neuroscience : JPN 1998;23(3):157-62.
1998: Odagaki Y; Nishi N; Ozawa H; Saito T; Takahata N; Riederer P; Koyama T
Measurement of receptor-mediated functional activation of G proteins in postmortem human brain membranes.
Brain research 1998;789(1):84-91.
1998: Honma H; Kobayashi R; Koyama T
[Sleep-wake transition disorders]
Nippon rinsho. Japanese journal of clinical medicine 1998;56(2):422-6.
1998: Takahashi Y; Kusumi I; Ishikane T; Koyama T
In vivo occupation of dopamine D1, D2 and serotonin2A receptors by novel antipsychotic drug, SM-9018 and its metabolite, in rat brain.
Journal of neural transmission (Vienna, Austria : 1996) 1998;105(2-3):181-91.
1998: Odagaki Y; Nishi N; Koyama T
Receptor-mediated and receptor-independent activation of G-proteins in rat brain membranes.
Life sciences 1998;62(17-18):1537-41.
1997: Ito K; Ohmori T; Abekawa T; Koyama T
Clonazepam prevents the development of sensitization to methamphetamine.
Pharmacology, biochemistry, and behavior 1997;58(4):875-9.
1997: Odagaki Y; Nishi N; Koyama T
Lack of interfering effects of lithium on receptor/G protein coupling in human platelet and rat brain membranes.
Biological psychiatry 1997;42(8):697-703.
1997: Hashimoto S; Inoue T; Koyama T
Effects of the co-administration of 5-HT1A receptor antagonists with an SSRI in conditioned fear stress-induced freezing behavior.
Pharmacology, biochemistry, and behavior 1997;58(2):471-5.
1997: Abekawa T; Ohmori T; Koyama T
Tolerance to the neurotoxic effect of methamphetamine in rats behaviorally sensitized to methamphetamine or amphetamine.
Brain research 1997;767(1):34-44.
1997: Odagaki Y; Nishi N; Koyama T
Effects of the wasp venom peptide, mastoparan, on GTP hydrolysis in rat brain membranes.
British journal of pharmacology 1997;121(7):1406-12.
1997: Abekawa T; Ohmori T; Koyama T
Effect of no synthesis inhibition on striatal dopamine release and stereotyped behavior induced by a single administration of methamphetamine.
Progress in neuro-psychopharmacology & biological psychiatry 1997;21(5):831-8.
1997: Ohmori T; Abekawa T; Ito K; Koyama T
[Context-dependent sensitization: reconsideration and a hypothesis]
Nihon shinkei seishin yakurigaku zasshi = Japanese journal of psychopharmacology 1997;17(2):61-8.
1997: Ishikane T; Kusumi I; Matsubara R; Matsubara S; Koyama T
Effects of serotonergic agents on the up-regulation of dopamine D2 receptors induced by haloperidol in rat striatum.
European journal of pharmacology 1997;321(2):163-9.
1996: Ohmori T; Abekawa T; Koyama T
The role of glutamate in the neurotoxic effects of methamphetamine.
Annals of the New York Academy of Sciences 1996;801():315-26.
1996: Inoue T; Tsuchiya K; Koyama T
Effects of typical and atypical antipsychotic drugs on freezing behavior induced by conditioned fear.
Pharmacology, biochemistry, and behavior 1996;55(2):195-201.
1996: Tsuchiya K; Inoue T; Izumi T; Hashimoto S; Koyama T
Effects of footshock stress on regional brain monoamine metabolism and the acquisition of conditioned freezing in rats previously exposed to repeated methamphetamine.
Progress in neuro-psychopharmacology & biological psychiatry 1996;20(7):1239-50.
1996: Ohmori T; Abekawa T; Koyama T
The role of glutamate in behavioral and neurotoxic effects of methamphetamine.
Neurochemistry international 1996;29(3):301-7.
1996: Inoue T; Hashimoto S; Tsuchiya K; Izumi T; Ohmori T; Koyama T
Effect of citalopram, a selective serotonin reuptake inhibitor, on the acquisition of conditioned freezing.
European journal of pharmacology 1996;311(1):1-6.
1996: Tsuchiya K; Inoue T; Koyama T
Effect of repeated methamphetamine pretreatment on freezing behavior induced by conditioned fear stress.
Pharmacology, biochemistry, and behavior 1996;54(4):687-91.
1996: Inoue T; Tsuchiya K; Koyama T
Serotonergic activation reduces defensive freezing in the conditioned fear paradigm.
Pharmacology, biochemistry, and behavior 1996;53(4):825-31.
1996: Odagaki Y; Nishi N; Koyama T
Functional coupling between metabotropic glutamate receptors and G proteins in rat brain membranes.
European journal of pharmacology 1996;300(1-2):151-4.
1996: Izumi T; Inoue T; Tsuchiya K; Hashimoto S; Ohmori T; Koyama T
Effect of the selective CCKB receptor antagonist LY288513 on conditioned fear stress in rats.
European journal of pharmacology 1996;300(1-2):25-31.
1996: Inoue T; Koyama T
Effects of acute and chronic administration of high-dose corticosterone and dexamethasone on regional brain dopamine and serotonin metabolism in rats.
Progress in neuro-psychopharmacology & biological psychiatry 1996;20(1):147-56.
1996: Abekawa T; Ohmori T; Koyama T
Effects of nitric oxide synthesis inhibition on methamphetamine-induced dopaminergic and serotonergic neurotoxicity in the rat brain.
Journal of neural transmission (Vienna, Austria : 1996) 1996;103(6):671-80.
1995: Ohmori T; Abekawa T; Koyama T
Scopolamine prevents augmentation of stereotypy induced by chronic methamphetamine treatment.
Psychopharmacology 1995;121(2):158-63.
1995: Miyamoto T; Kohsaka M; Katayama J; Honma H; Kobayashi R; Kohsaka S; Okuhara H; Koyama T
Evaluation of semantic processing in patients with temporal lobe epilepsy using event-related potential.
Psychiatry and clinical neurosciences 1995;49(3):S237-9.
1995: Abekawa T; Ohmori T; Koyama T
Effects of nitric oxide (NO) synthesis inhibition on the development of supersensitivity to stereotypy and locomotion stimulating effects of methamphetamine.
Brain research 1995;679(2):200-4.
1995: Kusumi I; Ohmori T; Kohsaka M; Ito M; Honma H; Koyama T
Chronobiological approach for treatment-resistant rapid cycling affective disorders.
Biological psychiatry 1995;37(8):553-9.
1995: Kusumi I; Matsubara S; Takahashi Y; Ishikane T; Koyama T
Characterization of [3H]clozapine binding sites in rat brain.
Journal of neural transmission. General section 1995;101(1-3):51-64.
1995: Kusumi I; Ishikane T; Matsubara S; Koyama T
Long-term treatment with haloperidol or clozapine does not affect dopamine D4 receptors in rat frontal cortex.
Journal of neural transmission. General section 1995;101(1-3):231-5.
1995: Ohmori T; Abekawa T; Koyama T
Scopolamine prevents the development of sensitization to methamphetamine.
Life sciences 1995;56(14):1223-9.
1994: Inoue T; Tsuchiya K; Koyama T
Regional changes in dopamine and serotonin activation with various intensity of physical and psychological stress in the rat brain.
Pharmacology, biochemistry, and behavior 1994;49(4):911-20.
1994: Abekawa T; Ohmori T; Koyama T
Effect of NO synthase inhibition on behavioral changes induced by a single administration of methamphetamine.
Brain research 1994;666(1):147-50.
1994: Odagaki Y; Koyama T; Yamashita I
Platelet pertussis toxin-sensitive G proteins in affective disorders.
Journal of affective disorders 1994;31(3):173-7.
1994: Ohmori T; Abekawa T; Muraki A; Koyama T
Competitive and noncompetitive NMDA antagonists block sensitization to methamphetamine.
Pharmacology, biochemistry, and behavior 1994;48(3):587-91.
1994: Kusumi I; Koyama T; Yamashita I
Effect of mood stabilizing agents on agonist-induced calcium mobilization in human platelets.
Journal of psychiatry & neuroscience : JPN 1994;19(3):222-5.
1994: Abekawa T; Ohmori T; Koyama T
Effects of repeated administration of a high dose of methamphetamine on dopamine and glutamate release in rat striatum and nucleus accumbens.
Brain research 1994;643(1-2):276-81.
1994: Kusumi I; Koyama T; Yamashita I
Serotonin-induced platelet intracellular calcium mobilization in depressed patients.
Psychopharmacology 1994;113(3-4):322-7.
1993: Odagaki Y; Koyama T; Yamashita I
Pharmacological characterization of epinephrine-stimulated GTPase activity in human platelet membranes.
Biochemical pharmacology 1993;46(11):2021-8.
1993: Koyama T; Abe M; Matsubara S; Yamashita I
Iprindole treatment increases extracellular concentrations of NA nd DA in the medial prefrontal cortex: evidence that iprindole increases availability of synaptic catecholamine in vivo.
The Japanese journal of psychiatry and neurology 1993;47(2):424-5.
1993: Inoue T; Koyama T; Tsuchiya K; Yamashita I
The potentiation of serotonergic activity reduces conditioned fear-induced freezing behavior.
The Japanese journal of psychiatry and neurology 1993;47(2):420-1.
1993: Ohmori T; Koyama T; Inoue T; Matsubara S; Yamashita I
B-HT 920, a dopamine D2 agonist, in the treatment of negative symptoms of chronic schizophrenia.
Biological psychiatry 1993;33(10):687-93.
1993: Matsubara S; Matsubara R; Kusumi I; Koyama T; Yamashita I
Dopamine D1, D2 and serotonin2 receptor occupation by typical and atypical antipsychotic drugs in vivo.
The Journal of pharmacology and experimental therapeutics 1993;265(2):498-508.
1993: Inoue T; Koyama T; Yamashita I
Effect of conditioned fear stress on serotonin metabolism in the rat brain.
Pharmacology, biochemistry, and behavior 1993;44(2):371-4.
1993: Nakayama M; Koyama T; Yamashita I
Long-lasting decrease in dopamine uptake sites following repeated administration of methamphetamine in the rat striatum.
Brain research 1993;601(1-2):209-12.
1993: Inoue T; Koyama T; Muraki A; Yamashita I
Effects of single and repeated immobilization stress on corticotropin-releasing factor concentrations in discrete rat brain regions.
Progress in neuro-psychopharmacology & biological psychiatry 1993;17(1):161-70.
1993: Odagaki Y; Koyama T; Yamashita I
Competitive vs. noncompetitive blockade of epinephrine-sensitive GTPase activity in human platelets.
Life sciences 1993;53(25):PL427-31.
1993: Ohmori T; Koyama T; Muraki A; Yamashita I
Competitive and noncompetitive N-methyl-D-aspartate antagonists protect dopaminergic and serotonergic neurotoxicity produced by methamphetamine in various brain regions.
Journal of neural transmission. General section 1993;92(2-3):97-106.
1992: Kusumi I; Koyama T; Yamashita I
Thrombin-induced platelet calcium mobilization is enhanced in bipolar disorders.
Biological psychiatry 1992;32(8):731-4.
1992: Ohmori T; Nakamura F; Koyama T; Yamashita I
Amygdala kindling does not alter the N-methyl-D-aspartate receptor-channel complex which modulates dopamine release in the rat striatum and amygdala.
Brain research 1992;587(2):257-62.
1992: Muraki A; Koyama T; Nakayama M; Ohmori T; Yamashita I
MK-801, a non-competitive antagonist of NMDA receptor, prevents methamphetamine-induced decrease of striatal dopamine uptake sites in the rat striatum.
Neuroscience letters 1992;136(1):39-42.
1992: Odagaki Y; Koyama T; Yamashita I
Influence of long-term lithium treatment on 5-hydroxytryptamine-mediated stimulation of adenylate cyclase in guinea-pig hippocampus.
Archives internationales de pharmacodynamie et de thérapie 1992;315():22-9.
1992: Odagaki Y; Koyama T; Yamashita I
Quantitative determination of pertussis toxin-sensitive G proteins using [32P]ADP-ribosylation in human platelet membranes: negative correlation with ages.
Life sciences 1992;50(24):1851-7.
1992: Koyama T; Yamashita I
Biological markers of depression: WHO multi-center studies and future perspective.
Progress in neuro-psychopharmacology & biological psychiatry 1992;16(6):791-6.
1991: Odagaki Y; Koyama T; Yamashita I
Lithium does not alter ADP-ribosylation of Gi/Go catalyzed by pertussis toxin in rat brain.
Pharmacology & toxicology 1991;69(5):355-60.
1991: Kusumi I; Koyama T; Yamashita I
Serotonin-stimulated Ca2+ response is increased in the blood platelets of depressed patients.
Biological psychiatry 1991;30(3):310-2.
1991: Odagaki Y; Koyama T; Matsubara S; Yamashita I
Effects of lithium on the beta-adrenergic receptor-adenylate cyclase system in rat cerebral cortical membranes.
Japanese journal of pharmacology 1991;55(4):407-14.
1991: Odagaki Y; Koyama T; Yamashita I
Effects of chronic treatment with lithium and antidepressants on [3H]forskolin binding to rat cerebral cortical membranes.
The Japanese journal of psychiatry and neurology 1991;45(1):125-6.
1991: Kusumi I; Koyama T; Yamashita I
Effect of various factors on serotonin-induced Ca2+ response in human platelets.
Life sciences 1991;48(25):2405-12.
1991: Odagaki Y; Koyama T; Yamashita I
Effects of long-term treatment with lithium and antidepressants on [3H]forskolin binding to rat cerebral cortical membranes.
Progress in neuro-psychopharmacology & biological psychiatry 1991;15(5):709-16.
1991: Odagaki Y; Koyama T; Yamashita I
No alterations in the 5-HT1A-mediated inhibition of forskolin-stimulated adenylate cyclase activity in the hippocampal membranes from rats chronically treated with lithium or antidepressants.
Journal of neural transmission. General section 1991;86(2):85-96.
1991: Ohmori T; Koyama T; Yamashita I
Measurement of endogenous dopamine and norepinephrine release from superfused slices of rat prefrontal cortex in vitro: modulation by D2 and alpha-2 presynaptic receptors.
Life sciences 1991;48(3):283-9.
1990: Odagaki Y; Koyama T; Matsubara S; Matsubara R; Yamashita I
Effects of chronic lithium treatment on serotonin binding sites in rat brain.
Journal of psychiatric research 1990;24(3):271-7.
1989: Mori H; Mikuni M; Koyama T; Yamashita I
Epinephrine stimulates inositol phospholipid metabolism by activating alpha-2 adrenergic receptors in human platelets.
Life sciences 1989;44(11):741-7.

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