Role of intracellular defense factors against methylmercury toxicity.

abstract：:Phenolic compounds, in general, exhibit antioxidant and antibacterial activities. We studied antimicrobial activity of the phenolic antioxidants, propofol (2,6-diisopropylphenol), tocopherol, eugenol, butylated hydroxyanisole (BHA), and several of their dimer compounds. Dipropofol (dimer of 2,6-diisopropylphenol) show...

journal_title：Biological & pharmaceutical bulletin

authors： Ogata M,Tutumimoto Sato K,Kunikane T,Oka K,Seki M,Urano S,Hiramatsu K,Endo T

更新日期：2005-06-01 00:00:00

abstract：:Nicotiflorin is a single component extracted from traditional Chinese medicine Flos Carthami. In this study, we investigated its neuroprotection in permanent focal cerebral ischemia model in rats, and in an in vitro model of ischemia. At doses of 2.5, 5 and 10 mg/kg, nicotiflorin administered immediately after the ons...

journal_title：Biological & pharmaceutical bulletin

authors： Li R,Guo M,Zhang G,Xu X,Li Q

更新日期：2006-09-01 00:00:00

abstract：:Epidermis is one of the well-known estrogen target tissues. Information regarding estrogen metabolism in epidermis is still very limited compared to that of estrogen action. In the breast cancer tissue, 17β-estradiol (E(2)) is inactivated by sulfation and the expression level of estrogen sulfotransferase (SULT1E1) is ...

journal_title：Biological & pharmaceutical bulletin

authors： Kushida A,Hattori K,Yamaguchi N,Kobayashi T,Date A,Tamura H

更新日期：2011-01-01 00:00:00

abstract：:The protective effect of sodium-L-ascorbyl-2 phosphate (As-2P), a stable form of ascorbic acid (AsA), against photodamage induced by a single dose of UVB exposure (290-320 nm, Max 312 nm) was investigated using cultured mouse skin. When the cultured skin was treated with various As-2P concentrations, the cutaneous AsA...

journal_title：Biological & pharmaceutical bulletin

authors： Nayama S,Takehana M,Kanke M,Itoh S,Ogata E,Kobayashi S

更新日期：1999-12-01 00:00:00

abstract：:T cells play a principal role in cellular immunity and govern the regulatory mechanism in humoral immunity. Therefore, T cells play a key role as either effectors or regulators in the immune network. Mizoribine (MZR), an immunosuppressive agent, suppresses both humoral and cellular immunity by acting on both T cells a...

journal_title：Biological & pharmaceutical bulletin

authors： Kamada H,Inoue N,Takaoka Y,Nakagami K,Mori H,Nagai H

更新日期：1996-09-01 00:00:00

abstract：:In the present study, we investigated the neuroprotective effects of kaempferol in the mouse model of Parkinson's disease, which was induced by neurotoxin 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). We confirmed that MPTP led to behavioral deficits, depletion of dopamine and its metabolites, reduction in supe...

journal_title：Biological & pharmaceutical bulletin

authors： Li S,Pu XP

更新日期：2011-01-01 00:00:00

abstract：:The aim of the present study is to investigate the effects of long-term Hypericum perforatum treatment on spatial learning and memory in rats. Hypericum preparation (HP) standardized to 0.3% hypericin content was administered orally for 9 weeks in doses of 4.3 and 13 microg/kg corresponding to therapeutic dosages in h...

journal_title：Biological & pharmaceutical bulletin

authors： Widy-Tyszkiewicz E,Piechal A,Joniec I,Blecharz-Klin K

更新日期：2002-10-01 00:00:00

abstract：:In 3,4-methylenedioxyamphetamine (MDA)-treated rat brain and urine, 3-methyl-6,7-methylenedioxy-1,2,3,4-tetrahydroisoquinoline (3Me6,7MDTIQ) was detected as a new metabolite. The content of 3Me6,7MDTIQ in (R)-MDA-treated rat was significantly higher than that in (S)-MDA-treated brain and urine. This result suggests th...

journal_title：Biological & pharmaceutical bulletin

authors： Nakagawa H,Makino Y,Yoshida Y,Ohta S,Hirobe M

更新日期：1993-06-01 00:00:00

abstract：:Cisplatin-induced nephrotoxicity is related to an increase in lipid peroxidation and oxygen free radicals in a kidney. In the present study, we investigated the effect of the dietary antioxidants, capsaicin (Cap), against cisplatin-induced lipid peroxidation and nephrotoxicity in rats. Nephrotoxicity induced by treatm...

journal_title：Biological & pharmaceutical bulletin

authors： Shimeda Y,Hirotani Y,Akimoto Y,Shindou K,Ijiri Y,Nishihori T,Tanaka K

更新日期：2005-09-01 00:00:00

abstract：:Mangiferin, a natural glucosyl xanthone from the leaves of Mangifera indica L., was previously shown to exert potent hypouricemic effects associated with inhibition of the activity of xanthine dehydrogenase/oxidase. The present study aimed to evaluate its uricosuric effect and possible molecular mechanisms underlying ...

journal_title：Biological & pharmaceutical bulletin

authors： Yang H,Gao L,Niu Y,Zhou Y,Lin H,Jiang J,Kong X,Liu X,Li L

更新日期：2015-01-01 00:00:00

abstract：:Two acidic polysaccharides, called ginsenan S-IA and ginsenan S-IIA, were isolated from the root of Panax ginseng C. A. Meyer. They were homogeneous on electrophoresis and gel chromatography, and their molecular masses were estimated to be 5.6 x 10(4) and 1.0 x 10(5), respectively. Ginsenan S-IA is composed of L-arabi...

journal_title：Biological & pharmaceutical bulletin

authors： Tomoda M,Hirabayashi K,Shimizu N,Gonda R,Ohara N,Takada K

更新日期：1993-11-01 00:00:00

abstract：:To elucidate insecticidal activity of spider toxins, metal ions in venoms and in the bodies were determined by thin layer chromatography, spark source mass spectrometry, ion chromatography, inductively coupled plasma emission spectrometry and atomic absorption spectrometry. Two kinds of spiders were used, Nephila clav...

journal_title：Biological & pharmaceutical bulletin

authors： Yoshioka M,Narai N,Shinkai A,Tokuda T,Saito K,Shioya M,Tokoro N,Kono Y

更新日期：1994-04-01 00:00:00

abstract：:The effects of the plant isoflavones, daidzin and genistin, on bone loss in ovariectomized (ovx) rats fed a calcium-deficient diet were investigated. Daidzin and genistin were orally administered to ovx rats for 4 weeks. The femurs of these rats showed significantly lower density, strength (breaking forces), ash weigh...

journal_title：Biological & pharmaceutical bulletin

authors： Ishida H,Uesugi T,Hirai K,Toda T,Nukaya H,Yokotsuka K,Tsuji K

更新日期：1998-01-01 00:00:00

abstract：:Expression of the asparagine synthetase gene is dependent on extracellular glucose concentration. This gene was knocked-down in livers of male Balb/c mice by a hydrodynamic tail vein injection of small interfering RNA (siRNA) against the gene. This knockdown resulted in a significant decrease in plasma glucose concent...

journal_title：Biological & pharmaceutical bulletin

authors： Iida S,Kamiya H,Nakaya A,Hayashi Y,Sawada A,Kaji N,Baba Y,Harashima H

更新日期：2013-01-01 00:00:00

abstract：:Fraxinellone and sauchinone, isolated from natural substance, are known to have an anti-inflammatory effect in inflammatory conditions. However, the anti-inflammatory actions of these compounds have been insufficiently demonstrated in viral-induced neuroinflammation. A viral component (double-stranded (ds)RNA) trigger...

journal_title：Biological & pharmaceutical bulletin

authors： Lee CS,Won C,Yoo H,Yi EH,Cho Y,Maeng JW,Sung SH,Ye SK,Chung MH

更新日期：2009-11-01 00:00:00

abstract：:Allergic rhinitis (AR) caused by house dust mite (HDM) and Japanese cedar pollen (JCP) represents a significant, expanding health problem in Japan. Allergic symptoms often have a severe impact on the QOL such as sleep disturbance and reduced school and work performance. In addition to the classical symptoms, AR is kno...

journal_title：Biological & pharmaceutical bulletin

authors： Ohashi-Doi K,Lund K,Mitobe Y,Okamiya K

更新日期：2020-01-01 00:00:00

abstract：:By means of glycyrrhizin (GL)-affinity and Mono S column chromatographies (HPLC), at least four GL-binding proteins (p25, p17, p15-1 and p15-2) in the two Superdex fractions (P-II and P-III fractions) from Habu snake venom were selectively purified. By determination of their N-terminal partial amino acid sequences, a ...

journal_title：Biological & pharmaceutical bulletin

authors： Ohtsuki K,Abe Y,Shimoyama Y,Furuya T,Munakata H,Takasaki C

更新日期：1998-06-01 00:00:00

abstract：:Apoptotic cells must be recognized early for phagocytosis to ensure that their toxic contents do not damage neighboring cells. In some cases this is achieved via CD43-capped membrane glycoproteins, the sialylpolylactosaminyl chains of which serve as ligands for phagocytosis by macrophages. However, because many additi...

journal_title：Biological & pharmaceutical bulletin

authors： Oguri E,Miki Y,Hirano K,Yamanaka M,Beppu M

更新日期：2012-01-01 00:00:00

abstract：:We previously reported the isolation of a novel cerebroside (1-O-(beta-D-glucopyranosyl)-(2S,3R,4E,8Z)-2-N-palmityloc tadecasphinga-4,8-diene; LCC) from the fruits of Lycium chinense MILL. (Solanaceae) which protected primary cultured rat hepatocytes from the toxicity induced by carbon tetrachloride (CCl4). The presen...

journal_title：Biological & pharmaceutical bulletin

authors： Kim SY,Lee EJ,Kim HP,Kim YC,Moon A,Kim YC

更新日期：1999-08-01 00:00:00

abstract：:Effects of supplemented docosahexaenoic acid (DHA), given as diacylglycerol (DG) rich in DHA (DHA-DG), triacylglycerol (TG) rich in DHA (DHA-TG) or fish oil concentrate (DHA-70), on the serum concentration of TG and its bioavailability in the rats with diet-induced hyperlipidemia were studied. Hypertriglyceridemia was...

journal_title：Biological & pharmaceutical bulletin

authors： Tamai T,Murota I,Maruyama K,Baba T,Toyama T,Watanabe N,Kudo N,Kawashima Y

更新日期：2007-12-01 00:00:00

abstract：:N-acetyl-seryl-aspartyl-lysyl-proline (AcSDKP) is an endogenous peptide released from its precursor (thymosin-β4) by prolyl oligopeptidase. AcSDKP is a natural inhibitor of pluripotent hematopoietic stem cell proliferation and is normally found in human plasma. AcSDKP has been shown to be a potent angiogenic factor an...

journal_title：Biological & pharmaceutical bulletin

authors： Suzuki Y,Katagiri F,Sato F,Fujioka K,Sato Y,Fujioka T,Sato Y,Mimata H,Itoh H

更新日期：2014-01-01 00:00:00

abstract：:The current study reports several post-translational modifications of alphaB-crystallin in normal human lenses. The isoforms of post-translational modified alphaB-crystallin were isolated from the normal human lenses of >70-age group by ion exchange chromatography and sodium dodecyl sulfate-polyacrylamide gel electrop...

journal_title：Biological & pharmaceutical bulletin

authors： Kamei A,Hamaguchi T,Matsuura N,Iwase H,Masuda K

更新日期：2000-02-01 00:00:00

abstract：:Recently, Banhabackchulchunmatang (HMC05) has been implicated as a preventive and/or therapeutic candidate for cardiovascular diseases due to its inhibition of atherosclerosis lesions and its reduction of neointima formation. Knowledge of the mechanism of HMC05 in smooth muscle cells (SMC) is limited. However, SMC may...

journal_title：Biological & pharmaceutical bulletin

authors： Gum SI,Shin HM,Cho MK

更新日期：2014-01-01 00:00:00

abstract：:The basal levels of extracellular Zn2+ are in the range of low nanomolar concentrations in the hippocampus and perhaps increase age-dependently. Extracellular Zn2+ dynamics is critical for cognitive activity and excess influx of extracellular Zn2+ into hippocampal neurons is a known cause of cognitive decline. The den...

journal_title：Biological & pharmaceutical bulletin

authors： Takeda A,Tamano H

更新日期：2018-01-01 00:00:00

abstract：:The anti-rhinitis properties of Pleurotus pulmonarius were investigated in BALB/c mice. A single administration of Pleurotus Pulmonarius caused no significant effect on antigen-induced nasal rubbing and sneezing at a dose of 500 mg/kg, but a significant inhibition was observed after 2 weeks of repeated treatment at th...

journal_title：Biological & pharmaceutical bulletin

authors： Yatsuzuka R,Nakano Y,Jiang S,Ueda Y,Kishi Y,Suzuki Y,Yokota E,Rahman A,Ono R,Kohno I,Kamei C

更新日期：2007-08-01 00:00:00

abstract：:We previously reported that, in Jurkat human T cells, the topoisomerase II inhibitor etoposide enhances sialidase activity and reduces cell surface sialic acid levels at an early stage of apoptosis and that the decreases in sialic acid are suppressed by the sialidase inhibitor 2,3-dehydro-2-deoxy-N-acetylneuraminic ac...

journal_title：Biological & pharmaceutical bulletin

authors： Azuma Y,Sato H,Higai K,Matsumoto K

更新日期：2007-09-01 00:00:00

abstract：:The mechanism of inactivation of cholinesterase (EC 3.1.1.8) by the Cu2+ -ascorbic acid (AsA) system was investigated. Incubation of the enzyme with the Cu2+ -AsA system under aerobic conditions resulted in an irreversible loss of enzyme activity. At low concentrations of Cu2+, the extent of inactivation showed the sa...

journal_title：Biological & pharmaceutical bulletin

authors： Kanazawa H,Fujimoto S,Ohara A

更新日期：1995-09-01 00:00:00

abstract：:We elucidated the protective effect of 7,8-dihydroxyflavone against hydrogen peroxide (H(2)O(2))-induced DNA damage. We found that 7,8-dihydroxyflavone scavenges 1,1-diphenyl-2-picrylhydrazyl (DPPH) radical and intracellular reactive oxygen species (ROS). 7,8-Dihydroxyflavone with antioxidant effect prevented the H(2)...

journal_title：Biological & pharmaceutical bulletin

authors： Zhang R,Kang KA,Piao MJ,Ko DO,Wang ZH,Chang WY,You HJ,Lee IK,Kim BJ,Kang SS,Hyun JW

更新日期：2009-02-01 00:00:00

abstract：:We investigated the effect of components in grapefruit juice (GFJ) on the transport of vinblastine, a substrate of P-glycoprotein (P-gp), across Caco-2 cells. The apical to basolateral flux of [3H]vinblastine was increased in the presence of GFJ extracts. The steady-state uptake of [3H]vinblastine from the apical side...

journal_title：Biological & pharmaceutical bulletin

authors： Takanaga H,Ohnishi A,Matsuo H,Sawada Y

更新日期：1998-10-01 00:00:00

abstract：:In a previous study, we reported that one of the gel-forming (1-->3)-beta-D-glucans, grifolan (from Grifola frondosa, GRN), stimulated cytokine production from macrophages in vitro. However, several other gel-forming (1-->3)-beta-D-glucans, such as sonifilan (SPG) and SSG, did not induce cytokine production from macro...

journal_title：Biological & pharmaceutical bulletin

authors： Okazaki M,Adachi Y,Ohno N,Yadomae T

更新日期：1995-10-01 00:00:00