Is Vulnerability of the Dentate Gyrus to Aging and Amyloid-β1-42 Neurotoxicity Linked with Modified Extracellular Zn2+ Dynamics?

abstract：:In brain ischemia, cell destructive necrosis occurs in the core, which in turn links to cell death expansion in the vicinity. Apoptosis, on the other hand, occurs in the surroundings of the core, called the penumbra, several days later. As cells showing apoptosis disappear by microglial phagocytosis in the brain, cell...

journal_title：Biological & pharmaceutical bulletin

authors： Ueda H,Fujita R

更新日期：2004-07-01 00:00:00

abstract：:Tumor necrosis factor-alpha (TNF-α) plays an important role in the developing process of inflammatory bowel disease. Tight junction protein zonula occludens-1 (ZO-1), one of epithelial junctional proteins, maintains the permeability of intestinal barrier. The objective of this study was to investigate the mechanism of...

journal_title：Biological & pharmaceutical bulletin

authors： Wang L,Zhang R,Chen J,Wu Q,Kuang Z

更新日期：2017-04-01 00:00:00

abstract：:We studied the effects of twelve 5,7-dihydroxyflavone analogs on adipogenesis in 3T3-L1 cells. Among the compounds, luteolin, diosmetin, and chrysoeriol partly inhibited adipogenesis by blocking the accumulation of triacylglycerol in the cells. Conversely, tricetin facilitated triacylglycerol accumulation in the cells...

journal_title：Biological & pharmaceutical bulletin

authors： Nishina A,Ukiya M,Fukatsu M,Koketsu M,Ninomiya M,Sato D,Yamamoto J,Kobayashi-Hattori K,Okubo T,Tokuoka H,Kimura H

更新日期：2015-01-01 00:00:00

abstract：:In Parkinson's disease, while dopamine (DA) replacement therapy, such as with L-DOPA (levodopa), improves the symptoms, it does not inhibit the degeneration of DA neurons in the substantia nigra. Numerous studies have suggested that both endogenous and environmental neurotoxins and oxidative stress may participate in ...

journal_title：Biological & pharmaceutical bulletin

authors： Kitamura Y,Kakimura J,Taniguchi T

更新日期：2002-03-01 00:00:00

abstract：:Uridine 5'-diphosphate-glucuronosyltransferase (UGT) catalyzes a major phase II reaction in a drug-metabolizing enzyme system. Although the UGT1A subfamily is expressed mainly in the liver, it is also expressed in the brain. The purpose of the present study was to elucidate the effect of β-naphthoflavone (BNF), one of...

journal_title：Biological & pharmaceutical bulletin

authors： Sakakibara Y,Katoh M,Kondo Y,Nadai M

更新日期：2016-01-01 00:00:00

abstract：:We developed a novel fluorometric assay method for the measurement of glycosyltransferase activities using mono- and di-saccharides aminated and tagged with 7-hydroxycoumarin-3-carboxylic acid (coumarin) as substrates, N-acetylglucosamine (GlcNAc)-coumarin for beta1,4-galactosyltransferase from bovine milk and Gal bet...

journal_title：Biological & pharmaceutical bulletin

authors： Higai K,Masuda D,Matsuzawa Y,Satoh T,Matsumoto K

更新日期：1999-04-01 00:00:00

abstract：:Consuming food at uncommon times during the day might be associated with obesity in experimental animals and humans. We previously reported that mice become obese and their metabolism becomes disrupted when they consume food during the daytime (sleep phase feeding; SPF), but not during the nighttime (active phase feed...

journal_title：Biological & pharmaceutical bulletin

authors： Oishi K,Okauchi H

更新日期：2019-01-01 00:00:00

abstract：:This study aimed to investigate the mechanism by which the human lung cancer drug resistance-related gene BC006151 regulates chemosensitivity by down-regulating BC006151 expression via antisense gene transfer in H446/(C)DDP cells. A retroviral vector containing the antisense BC006151 sequence was constructed and trans...

journal_title：Biological & pharmaceutical bulletin

authors： Li S,Shi H,Ji F,Wang B,Feng Q,Feng X,Jia Z,Zhao Q,Qian G

更新日期：2010-01-01 00:00:00

abstract：:The permeability of insulin across Xenopus pulmonary membrane and the effects of various absorption enhancers on insulin permeability were examined using an in vitro Ussing chamber technique. Absorption enhancers used in this study were sodium caprate (NaCap), sodium glycocholate (NaGC), sodium salicylate (NaSal) and ...

journal_title：Biological & pharmaceutical bulletin

authors： Yamamoto A,Tanaka H,Okumura S,Shinsako K,Ito M,Yamashita M,Okada N,Fujita T,Muranishi S

更新日期：2001-04-01 00:00:00

abstract：:Lymphocyte homing is mediated by a specific interaction between the lymphocyte homing receptor L-selectin and its sulfated glycoprotein ligands, which are expressed on high endothelial venules (HEV) in the lymph nodes. To examine the significance of the sulfation of L-selectin ligands, our group has generated gene-tar...

journal_title：Biological & pharmaceutical bulletin

authors： Kawashima H

更新日期：2006-12-01 00:00:00

abstract：:Indole-3-carbinol (I3C) is a natural compound found in a wide variety of plant food substances including members of the family Cruciferae with antioxidant and potential chemopreventive properties. In a previous study, I3C exhibited broad spectrum antibacterial activities. Particularly, it showed a more potent antibact...

journal_title：Biological & pharmaceutical bulletin

authors： Sung WS,Lee DG

更新日期：2008-09-01 00:00:00

abstract：:Phospholipase (PL) A2 activity prepared from isolated rat fat pads incubated with sodium orthovanadate (vanadate) was increased in a time- and dose-dependent manner. The increasing effect of vanadate was reduced in the presence of tyrosine kinase inhibitors. Under the inhibition of protein synthesis by cycloheximide, ...

journal_title：Biological & pharmaceutical bulletin

authors： Morita T,Imagawa T,Kanagawa A,Ueki H

更新日期：1995-02-01 00:00:00

abstract：:To investigate chemopreventive effect of liposomal beta-sitosterol on tumor metastasis, we prepared liposomal beta-sitosterol composed of egg yolk phosphatidylcholine for oral delivery. Although orally administered beta-sitosterol (4 micromol as beta-sitosterol/mouse) was not absorbed into plasma, the amount of immune...

journal_title：Biological & pharmaceutical bulletin

authors： Imanaka H,Koide H,Shimizu K,Asai T,Kinouchi Shimizu N,Ishikado A,Makino T,Oku N

更新日期：2008-03-01 00:00:00

abstract：:A novel tricyclic 21-amino-acid peptide, FR901724, was isolated from the cultured broth of Streptomyces sp. No. 73264. This peptide appears to possess potent anti-human immunodeficiency virus (HIV) activity in vitro and might represent a lead to a new class of anti-HIV agents; it qualifies as an HIV-cell fusion inhibi...

journal_title：Biological & pharmaceutical bulletin

authors： Nakashima H,Ichiyama K,Inazawa K,Ito M,Hayashi H,Nishihara Y,Tsujii E,Kino T

更新日期：1996-03-01 00:00:00

abstract：:Systems for delivering nucleic acids are now fundamental technologies for realizing personalized medicine. Among the various nucleic acid delivery systems that are currently available, lipid-nanoparticles (LNPs) that contain short interfering RNA (siRNA) have been extensively investigated for clinical applications. LN...

journal_title：Biological & pharmaceutical bulletin

authors： Shirane D,Tanaka H,Nakai Y,Yoshioka H,Akita H

更新日期：2018-01-01 00:00:00

abstract：:Glycosylation is a highly sophisticated post-translational modification of proteins that occurs in the endoplasmic reticulum (ER) and the Golgi apparatus. The vital biological functions served by protein glycosylation can be separated into two types. The first is the role of glycosylation in the extracellular environm...

journal_title：Biological & pharmaceutical bulletin

authors： Yamamoto K

更新日期：2009-05-01 00:00:00

abstract：:Effects of certain antiallergic drugs on experimental conjunctivitis were studied with guinea pigs. Chlorpheniramine, ketotifen and levocabastine were effective in inhibiting histamine- and antigen-induced conjunctivitis in guinea pigs. By contrast, amlexanox was only effective in inhibiting antigen-induced conjunctiv...

journal_title：Biological & pharmaceutical bulletin

authors： Kamei C,Izushi K,Nakamura S

更新日期：1995-11-01 00:00:00

abstract：:DJ-1 was first identified as a novel candidate of an oncogene product in cooperation with an activated ras, and DJ-1 was later found to be a positive regulator of the androgen receptor (AR) transcription activity that was repressed by PIASxalpha. DJ-1 was also found to be an infertility-related protein that was reduce...

journal_title：Biological & pharmaceutical bulletin

authors： Taira T,Iguchi-Ariga SM,Ariga H

更新日期：2004-04-01 00:00:00

abstract：:The tumor suppressor phosphatase and tensin homolog (PTEN) functions as a phosphoinositide 3-phosphatase, that antagonizes phosphatidylinositol 3-kinase action, and negatively regulates cell proliferation and survival signals. Inactivation of PTEN by loss-of-function mutations gives rise to deregulated hyperproliferat...

journal_title：Biological & pharmaceutical bulletin

authors： Maehama T

更新日期：2007-09-01 00:00:00

abstract：:Alpha1-adrenoceptor antagonists are clinically useful for the improvement of urinary obstruction due to benign prostatic hyperplasia (BPH), and their therapeutic effects are mediated through the blockade of prostatic alpha(1)-adrenoceptors. The present study was undertaken to predict the magnitude and duration of alph...

journal_title：Biological & pharmaceutical bulletin

authors： Yamada S,Kato Y,Okura T,Kagawa Y,Kawabe K

更新日期：2007-07-01 00:00:00

abstract：:An extract from Salvia officinalis (Sage) leaves showed antimicrobial activity against vancomycin-resistant enterococci (VRE). We isolated the effective compound and identified it as oleanolic acid, a triterpenoid. We also tested antimicrobial activity of similar triterpenoids, ursolic acid, uvaol, betulinic acid and ...

journal_title：Biological & pharmaceutical bulletin

authors： Horiuchi K,Shiota S,Hatano T,Yoshida T,Kuroda T,Tsuchiya T

更新日期：2007-06-01 00:00:00

abstract：:The present work aimed to investigate the vasorelaxant effect of isotirumalin, a dihydroflavonol isolated from Derris urucu (Leguminosae). The vasorelaxant effect of isotirumalin was investigated in the rat aorta, in the presence and in the absence of a functional endothelium. The production of nitric oxide (NO) induc...

journal_title：Biological & pharmaceutical bulletin

authors： Mendes LJ,Capettini LS,Lôbo LT,da Silva GA,Arruda MS,Lemos VS,Côrtes SF

更新日期：2011-01-01 00:00:00

abstract：:Escherichia coli BM2506 produced macrolide 2'-phosphotransferase II [MPH (2') II]. A gene for MPH (2') II, designated mphB, is located on plasmids pTZ3721 and pTZ3723 in E. coli BM2506. In the present study, we determined the nucleotide sequence of the 6.5-kb EcoRI-PstI fragment containing mphB on pTZ3721. The DNA reg...

journal_title：Biological & pharmaceutical bulletin

authors： Katayama J,Noguchi N

更新日期：1999-02-01 00:00:00

abstract：:Nitrogen oxide, which is produced by activated macrophages, has been demonstrated to possess anti-tumor activity. We report herein the synergistic effect of sodium nitrite (NO2-) and/or sodium nitroprusside (SNP) on lysophospholipid (LysoPL)-mediated cytolysis. The incubation of 51Cr-labeled mouse melanoma (B16) cells...

journal_title：Biological & pharmaceutical bulletin

authors： Kanematsu M,Takagi K,Suketa Y

更新日期：1994-01-01 00:00:00

abstract：:A series of anthracene derivatives have been synthesized, and their potential individual cytotoxicity was evaluated using Jurkat T cells and peripheral blood mononuclear cells (PBMCs) in vitro. These compounds, except for 2l, showed less cytotoxicity in PBMCs than mitoxantrone. We also analyzed the antiproliferative a...

journal_title：Biological & pharmaceutical bulletin

authors： Chen RF,Chou CL,Wang MR,Chen CF,Liao JF,Ho LK,Tao CW,Huang HS

更新日期：2004-06-01 00:00:00

abstract：:We recently isolated a novel lignan, 4-hydroxykobusin from Geranium thunbergii (Liu et al., Arch. Pharm. Res., 29, 1109-1113, 2006). Here, we studied its effect on the expression of inducible nitric oxide synthase (iNOS) gene in RAW264.7 cells. 4-Hydroxykobusin inhibited nitric oxide (NO) production in a concentration...

journal_title：Biological & pharmaceutical bulletin

authors： Pokharel YR,Liu QH,Oh JW,Woo ER,Kang KW

更新日期：2007-06-01 00:00:00

abstract：:It is therapeutically important to elucidate the factors involved in the radiation resistance of tumors. We previously showed that ATP is released from mouse melanoma B16 cells in response to γ-irradiation, but the role of adenosine, a metabolite of ATP, is still unclear. Here, we show that the adenosine A2B receptor ...

journal_title：Biological & pharmaceutical bulletin

authors： Tanaka Y,Kitabatake K,Abe R,Tsukimoto M

更新日期：2020-03-01 00:00:00

abstract：:P2X7 receptor (P2X7R), a purinergic receptor, is involved in pathophysiological events such as inflammation and cell death, and thus is an attractive target for therapeutic approaches. It is reported that divalent metal cations (DMCs) inhibit P2X7R activation and that there are species differences in their inhibitory ...

journal_title：Biological & pharmaceutical bulletin

authors： Fujiwara M,Ohbori K,Ohishi A,Nishida K,Uozumi Y,Nagasawa K

更新日期：2017-01-01 00:00:00

abstract：:To predict the actions of T-3762, a newly developed fluoroquinolone antimicrobial agent, as well as ciprofloxacin (CPFX) and ofloxacin (OFLX), on injection sites when dosed parenterally, their ability to increase cutaneous vascular permeability in dogs and to release histamine from rat peritoneal mast cells was examin...

journal_title：Biological & pharmaceutical bulletin

authors： Furuhata K,Fukuda Y,Soumi K,Arai H,Watanabe Y,Narita H

更新日期：1998-05-01 00:00:00

abstract：:Oyaksungisan, the herbal prescription composed of eleven herbs, has been widely used in treatment of cerebral infarct in Oriental Medicine. However, the mechanisms by which the herbal formula affects on the production of pro- and anti-inflammatory cytokines in cerebral infarction patients remain unknown yet. The secre...

journal_title：Biological & pharmaceutical bulletin

authors： Kim Y,So HS,Kim JK,Park C,Lee JH,Woo WH,Cho KH,Moon BS,Park R

更新日期：2007-06-01 00:00:00