abstract：:Lig-8, a lignophenol derivative from bamboo lignin, potently suppresses oxidative stress-induced apoptosis. Here, we first examined in vitro whether lig-8 protects against neuronal damage induced by oxygen-glucose deprivation (OGD) followed by reoxygenation, tunicamycin [endoplasmic reticulum (ER)-stress inducer], or ...

journal_title：Journal of pharmacological sciences

authors： Ito Y,Shimazawa M,Akao Y,Nakajima Y,Seki N,Nozawa Y,Hara H

更新日期：2006-10-01 00:00:00

abstract：:Many kinds of vasodilators induce relaxation of the vascular smooth muscle cells (VSMCs) through the production of cyclic AMP (cAMP) or cyclic GMP (cGMP). The relaxant effects mediated by these second messengers are thought to be mainly due to the decrease in intracellular Ca(2+) concentration ([Ca(2+)](i)), as well a...

journal_title：Journal of pharmacological sciences

authors： Nishimura J

更新日期：2006-09-01 00:00:00

abstract：:Nicotine inhibited interleukin (IL)-18 and -12 production in lipopolysaccharide (LPS)-stimulated monocytes, and the action of nicotine was antagonized by a non-selective and a selective alpha7 nicotinic acetylcholine receptor (alpha7-nAChR) antagonist, suggesting that the stimulation of alpha7-nAChR may be involved in...

journal_title：Journal of pharmacological sciences

authors： Takahashi HK,Iwagaki H,Hamano R,Yoshino T,Tanaka N,Nishibori M

更新日期：2006-09-01 00:00:00

abstract：:Selegiline is used an adjunct to L-DOPA therapy. We investigated extracellular striatal dopamine (DA) level in awake rats treated with L-DOPA and/or selegiline using a microdialysis method. Rats given 10 mg/kg, i.p. per day selegiline for 7 days were administered with a single dose of 100 mg/kg, i.p. L-DOPA 0 (3 h), 1...

journal_title：Journal of pharmacological sciences

authors： Adachi K,Miwa H,Kusumoto H,Shimazu S,Kondo T

更新日期：2006-08-01 00:00:00

abstract：:Cytochrome P450 (CYP) catalyzes the oxidation of many endogenous and xenobiotic compounds. The expression of CYP isozymes are modulated by endogenous hormones and xenobiotics. We found that, although CYP2C11 and CYP3A2 are adult male-specific isozymes, they are also expressed in prepubertal female Sprague Dawley (SD) ...

journal_title：Journal of pharmacological sciences

authors： Ishii T,Nishimura K,Nishimura M

更新日期：2006-07-01 00:00:00

abstract：:Overexpression of constitutively active (CA)-G alpha13 significantly increased the expression of interleukin (IL)-1beta and IL-6 mRNAs and proteins in rat cardiac fibroblasts. IL-1beta mRNA induction by CA-G alpha13 was suppressed by diphenyleneiodonium (DPI), an NADPH oxidase inhibitor, but not by BAPTA-AM, an intrac...

journal_title：Journal of pharmacological sciences

authors： Nagamatsu Y,Nishida M,Onohara N,Fukutomi M,Maruyama Y,Kobayashi H,Sato Y,Kurose H

更新日期：2006-06-01 00:00:00

abstract：:In conventional relative gene expression analysis (Northern blotting, RT-PCR, and in situ hybridization), housekeeping genes such as the glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and beta-actin genes, whose expression levels are considered stable, have been used as control genes for normalization of RNA quantit...

journal_title：Journal of pharmacological sciences

authors： Nishida Y,Sugahara-Kobayashi M,Takahashi Y,Nagata T,Ishikawa K,Asai S

更新日期：2006-05-01 00:00:00

abstract：:A brief exposure to hydrogen peroxide (H2O2) induces severe deterioration of primary cultured neurons in vitro. We have investigated a link between the H2O2-induced neuronal death and Ca2+-permeable TRPM2 channels regulated by ADP-ribose (ADPR). In cultured cerebral cortical neurons from fetal rat, TRPM2 proteins were...

journal_title：Journal of pharmacological sciences

authors： Kaneko S,Kawakami S,Hara Y,Wakamori M,Itoh E,Minami T,Takada Y,Kume T,Katsuki H,Mori Y,Akaike A

更新日期：2006-05-01 00:00:00

abstract：:Fullerene (C(60)), a condensed ring aromatic compound with extended pi systems, is a novel carbon allotrope. Because of its poor solubility in polar solvents, investigation of the biological and pharmacological properties of fullerene has been difficult. Recently, water-soluble fullerene derivatives have been synthesi...

journal_title：Journal of pharmacological sciences

authors： Satoh M,Takayanagi I

更新日期：2006-01-01 00:00:00

abstract：:Ca(2+) is a central player in the excitation-contraction coupling of cardiac myocytes, the process that enables the heart to contract and relax. Mishandling of Ca(2+) is a central cause of both contractile dysfunction and arrhythmias in pathophysiological conditions such as heart failure (HF). Upon electrical excitati...

journal_title：Journal of pharmacological sciences

authors： Bers DM,Despa S

更新日期：2006-01-01 00:00:00

abstract：:Lysophosphatidic acid (LPA), the simplest of the water-soluble phospholipids, can evoke various biological responses. The present study examined the activity of LPA to induce plasma exudation and histamine release in mice. Plasma exudation was assessed by extravasation of Evans blue. Subcutaneous administration of LPA...

journal_title：Journal of pharmacological sciences

authors： Hashimoto T,Ohata H,Honda K

更新日期：2006-01-01 00:00:00

abstract：:The mechanisms of action of acupuncture and moxibustion as reported by Japanese researchers are reviewed. The endogenous opioid-mediated mechanisms of electroacupuncture (EA) as used in China are well understood, but these are only one component of all mechanisms of acupuncture. These studies emphasize the similarity ...

journal_title：Journal of pharmacological sciences

authors： Kawakita K,Shinbara H,Imai K,Fukuda F,Yano T,Kuriyama K

更新日期：2006-01-01 00:00:00

abstract：:Peroxisome proliferator-activated receptor gamma (PPARgamma) is a ligand-dependent transcriptional factor implicated in regulating adipogenesis, glucose homeostasis, and in mediating the action of the insulin sensitizing anti-diabetic thiazolidinedione (TZD) compounds. [3-(2,4-Dichlorobenzyl)-2-methyl-N-(pentylsulfony...

journal_title：Journal of pharmacological sciences

authors： Fujimura T,Sakuma H,Konishi S,Oe T,Hosogai N,Kimura C,Aramori I,Mutoh S

更新日期：2005-12-01 00:00:00

abstract：:Re-expression of fetal genes has been considered to underlie ionic remodeling in diseased heart. T-type Ca(2+) channels have been reported to be functionally expressed in embryonic hearts. In this review, we summarize developmental changes of T-type Ca(2+) channels in mouse ventricles from 9.5 days postcoitum (dpc) to...

journal_title：Journal of pharmacological sciences

authors： Yasui K,Niwa N,Takemura H,Opthof T,Muto T,Horiba M,Shimizu A,Lee JK,Honjo H,Kamiya K,Kodama I

更新日期：2005-11-01 00:00:00

abstract：:The biological basis for the therapeutic mechanisms of depression are still unknown. While performing EST (expressed sequence tag) analysis to identify some molecular machinery responsible for the antidepressant effect, we determined the full-length nucleotide sequence of rat frizzled-3 protein (Frz3) cDNA. Interestin...

journal_title：Journal of pharmacological sciences

authors： Yamada M,Iwabuchi T,Takahashi K,Kurahashi C,Ohata H,Honda K,Higuchi T,Yamada M

更新日期：2005-11-01 00:00:00

abstract：:Yeasts isolated from patients with superficial mycoses were tested against propolis samples collected from different regions and honeybee races. The minimum inhibitory concentration (MIC) values obtained using the agar dilution methods were compared to the diameters of growth inhibition zones by using the disk diffusi...

journal_title：Journal of pharmacological sciences

authors： Silici S,Koç NA,Ayangil D,Cankaya S

更新日期：2005-09-01 00:00:00

abstract：:Our previous study showed that oridonin isolated from Rabdosia rubescens enhanced phagocytosis of apoptotic cells by macrophage-like U937 cells through tumor necrosis factor (TNF) alpha and interleukin (IL)-1beta release. In this study, we further investigated signaling events involved in oridonin-augmented phagocytos...

journal_title：Journal of pharmacological sciences

authors： Liu YQ,You S,Tashiro S,Onodera S,Ikejima T

更新日期：2005-08-01 00:00:00

abstract：:Hot flushes are the most common complaint of menopausal women. In the present study, a new animal model of hot flushes was established. Tail skin temperature was measured with a thermo tracer after mice were subjected to a forced exercise task using a motor driven treadmill. In ovariectomized mice, forced exercise for...

journal_title：Journal of pharmacological sciences

authors： Shuto H,Yamauchi A,Ikeda M,Sohda Y,Koga A,Tominaga K,Egawa T,Kataoka Y

更新日期：2005-07-01 00:00:00

abstract：:A simple in vivo closed-chest atrial fibrillation (Af) model of rats was developed. Af was reproducibly induced by transesophageal atrial burst pacing for 30 s in each of the pentobarbital-anesthetized rats, whereas the cardiohemodynamic condition as well as the inducibility and duration of Af episode was stable over ...

journal_title：Journal of pharmacological sciences

authors： Sugiyama A,Takahara A,Honsho S,Nakamura Y,Hashimoto K

更新日期：2005-07-01 00:00:00

abstract：:We have previously shown a marked but transient increase in DNA binding of the nuclear transcription factor activator protein-1 after brief exposure to static magnetic fields in cultured rat hippocampal neurons, suggesting that exposure to static magnetism would lead to long-term consolidation as well as amplification...

journal_title：Journal of pharmacological sciences

authors： Hirai T,Yoneda Y

更新日期：2005-07-01 00:00:00

abstract：:Leptin is an adipose tissue-derived secretory hormone that suppresses appetite by inhibition of neuropepeptide Y (NPY) gene expression in arcuate nucleus (ARC) in the hypothalamus. To investigate the transcriptional regulation of NPY gene by leptin, we carried out a luciferase assay using NPY gene promotor plasmid (NP...

journal_title：Journal of pharmacological sciences

authors： Higuchi H,Hasegawa A,Yamaguchi T

更新日期：2005-07-01 00:00:00

abstract：:We examined the effects of a cannabinoid receptor agonist, (R)-(+)-[2,3-dihydro-5-methyl-3-[(4-merpholino)methyl]pyrrolo-[1,2,3-de]-1,4-benzoxazin-6-yl](1-naphthyl)methanone (WIN 55212-2), on various respiratory reactions induced by the activation of capsaicin-sensitive afferent sensory nerves (C-fibers). WIN 55212-2 ...

journal_title：Journal of pharmacological sciences

authors： Yoshihara S,Morimoto H,Ohori M,Yamada Y,Abe T,Arisaka O

更新日期：2005-05-01 00:00:00

abstract：:The supraspinal and spinal antinociceptive effects of several kappa-opioid receptor agonists were examined in diabetic and non-diabetic mice using the tail-flick assay. The antinociception induced by intrathecal (i.t.), but not intracerebroventricular (i.c.v.), CI-977, a highly selective kappa(1)-opioid receptor agoni...

journal_title：Journal of pharmacological sciences

authors： Ohsawa M,Kamei J

更新日期：2005-05-01 00:00:00

abstract：:The aim of the present study is to clarify the mechanism for the decrease in intraocular pressure by 2-alkynyladenosine derivatives in rabbits. The receptor binding analysis revealed that 2-(1-octyn-1-yl)adenosine (2-O-Ado) and 2-(6-cyano-1-hexyn-1-yl)adenosine (2-CN-Ado) selectively bound to the A(2a) receptor with a...

journal_title：Journal of pharmacological sciences

authors： Konno T,Murakami A,Uchibori T,Nagai A,Kogi K,Nakahata N

更新日期：2005-04-01 00:00:00

abstract：:In canine ventricular myocardium, endothelin-1 (ET-1) alone induced only a weak transient negative inotropic effect (NIE). However, ET-1 induced a marked sustained positive inotropic effect (PIE) subsequent to a transient NIE in the presence of norepinephrine (NE) at low concentrations (0.1 - 1 nM) and elicited a pron...

journal_title：Journal of pharmacological sciences

authors： Chu L,Zhang JX,Norota I,Endoh M

更新日期：2005-03-01 00:00:00

abstract：:Alzheimer's disease (AD) is the most common neurodegenerative disorder of late life characterized by insidious, chronic, and progressive memory impairment in association with the accumulation of senile plaques, neurofibrillary tangles, and massive loss of neurons. Apoptosis is believed to be an important contributor t...

journal_title：Journal of pharmacological sciences

authors： Takuma K,Yan SS,Stern DM,Yamada K

更新日期：2005-03-01 00:00:00

abstract：:Circulating levels of calcium ion (Ca(2+)) are maintained within a narrow physiological range mainly by the action of parathyroid hormone (PTH) secreted from parathyroid cells. Parathyroid cells can sense small fluctuations in plasma Ca(2+) levels by virtue of a cell surface Ca(2+) receptor (CaR) that belongs to the s...

journal_title：Journal of pharmacological sciences

authors： Nagano N,Nemeth EF

更新日期：2005-03-01 00:00:00

abstract：:Peroxisome proliferator-activated receptor gamma (PPARgamma) is a ligand-dependent nuclear receptor and regulates adipogenesis and fat metabolism. PPARgamma is activated by fatty acid derivatives and some synthetic compounds such as the thiazolidinediones. In addition, certain cytokines were known to affect the transa...

journal_title：Journal of pharmacological sciences

authors： Takada I,Suzawa M,Kato S

更新日期：2005-02-01 00:00:00

abstract：:Sargassum hemiphyllum (SH) has long been used in Korean folk medicine for the therapeutic treatment of various allergic diseases. The effects of SH in previous experimental models, however, have been inconclusive. We studied the effects of methanol extract of SH on mast cells. Our experiments showed that SH significan...

journal_title：Journal of pharmacological sciences

authors： Na HJ,Moon PD,Ko SG,Lee HJ,Jung HA,Hong SH,Seo Y,Oh JM,Lee BH,Choi BW,Kim HM

更新日期：2005-02-01 00:00:00

abstract：:The mesocorticolimbic dopaminergic system plays an important role in the reinforcing effects of drugs of abuse, and the activity-dependent synaptic plasticity of the system is involved in drug dependence. A DNA microarray screening revealed that the expression levels of tissue plasminogen activator (tPA) mRNA in the n...

journal_title：Journal of pharmacological sciences

authors： Yamada K,Nagai T,Nabeshima T

更新日期：2005-02-01 00:00:00

abstract：:To investigate whether miniature pigs are useful for evaluating the potential of drugs for drug-induced prolongation of the QT interval, we performed an in vivo QT assay using conscious and unrestricted miniature pigs. Compared with the vehicle average baseline values, haloperidol at 3 and 10 mg/kg, p.o. prolonged the...

journal_title：Journal of pharmacological sciences

authors： Kano M,Toyoshi T,Iwasaki S,Kato M,Shimizu M,Ota T

更新日期：2005-01-01 00:00:00

abstract：:Electropharmacological effect of the antipsychotic and antiemetic drug prochlorperazine was assessed using the halothane-anesthetized in vivo canine model (n = 5). Up to 10 times higher than the clinically relevant doses of prochlorperazine (< or = 3 mg/kg, i.v.) did not induce cardiohemodynamic collapse in the model....

journal_title：Journal of pharmacological sciences

authors： Satoh Y,Sugiyama A,Takahara A,Ando K,Wang K,Honsho S,Hashimoto K

更新日期：2005-01-01 00:00:00

abstract：:The role of extracellular calcium in the interaction between intracellular cAMP and nitric oxide (NO)/cGMP on the contractility of rat diaphragm pretreated with cumulative concentrations of aminophylline (0.36 - 3.60 mM) was investigated. In a Ca2+-free medium, NG-nitro-L-arginine methyl ester (L-NAME) (1 and 3 mM) de...

journal_title：Journal of pharmacological sciences

authors： Stojanovic R,Todorović Z,Nesić Z,Vućković S,Cerovac-Cosić N,Prostran M

更新日期：2004-12-01 00:00:00

abstract：:Simultaneous administration of psychostimulants and opioids is a major drug abuse problem worldwide. This combination appears to produce synergistic effects on behavior at low doses; however, there is little direct evidence that the combination is stronger than either drug alone. Therefore, we investigated interaction...

journal_title：Journal of pharmacological sciences

authors： Mori T,Ito S,Narita M,Suzuki T,Sawaguchi T

更新日期：2004-12-01 00:00:00

abstract：:Tumor necrosis factor-alpha (TNFalpha)-induced cell death is regulated through the release of arachidonic acid (AA) by group IVA cytosolic phospholipase A2 (cPLA2alpha) in the murine fibroblast cell line L929. However, the signaling pathway by which TNFalpha activates cPLA2alpha remained to be solved. We examined AA r...

journal_title：Journal of pharmacological sciences

authors： Shimizu M,Azuma C,Taniguchi T,Murayama T

更新日期：2004-11-01 00:00:00

abstract：:Previous studies showed that diphenidol was effective on emetogens-induced pica, eating of non-nutritive substances, in rats, a model analogous to emesis in other species. We evaluated the actual antiemetic activity of diphenidol against four emetic stimuli in the dog and ferret, animals that possess an emetic reflex....

journal_title：Journal of pharmacological sciences

authors： Nakayama H,Yamakuni H,Nakayama A,Maeda Y,Imazumi K,Matsuo M,Mutoh S

更新日期：2004-11-01 00:00:00

abstract：:Five isoforms of Na+/Ca2+ exchanger have been identified: NCX1, NCX2, NCX3, NCX-SQ1, and CALX. In all of the exchangers, the Na+/Ca2+ exchange current, which was recorded in inside-out membrane patches, was regulated by cytoplasmic Ca2+. However, the mode of regulation is different among the exchangers. NCX1, NCX2, an...

journal_title：Journal of pharmacological sciences

authors： Matsuoka S

更新日期：2004-09-01 00:00:00

abstract：:By using immunofluorostaining and confocal laser microscopy, acetylcholine-induced translocation of RhoA was visualized in freshly isolated bronchial smooth muscle cells of the rat. The cellular distribution of RhoA at rest was observed uniformly in the cytosolic space with no staining in the nucleus, whereas acetylch...

journal_title：Journal of pharmacological sciences

authors： Chiba Y,Uchida T,Sakai H,Oku T,Itoh S,Tsuji T,Misawa M

更新日期：2004-08-01 00:00:00

abstract：:We characterized the effects of vanadate, an inhibitor of tyrosine phosphatase, on the tension, the level of myosin light chain (MLC) phosphorylation, and Rho A activation in intact ileal longitudinal smooth muscle of the guinea pig to study the role of tyrosine phosphorylation in contraction signaling. Vanadate exert...

journal_title：Journal of pharmacological sciences

authors： Mori M,Tsushima H

更新日期：2004-08-01 00:00:00

abstract：:Although mannitol has been used as an osmotherapeutic drug on brain injury, the clinical efficiency of the drug are still controversial. In the present study, we examined the effects of mannitol on the edema in a hippocampal slice due to brief ischemia. To evaluate the effects, we employed an image analysis system tha...

journal_title：Journal of pharmacological sciences

authors： Nakajima R,Nakamura T,Miyakawa H,Kudo Y

更新日期：2004-07-01 00:00:00