Abstract:
:Alzheimer's beta-amyloid protein (A beta) is the main component of senile plaques, which are characteristic hallmarks of the Alzheimer's disease brain. Recently, there have been several reports that A beta has toxic effects on both cultured neurons and in the brain. We confirmed the neurotoxicity of A beta in vitro and found a new compound, called AZ36041 (4-chloro-N-(5-nitro-2-tiazoyl)benzenesulfone amide), which dramatically reduced A beta neurotoxicity. This compound was also found to have a neuroprotective effect against toxicity of glutamate and enhanced neuronal survival in the absence of neurotoxic compounds. AZ36041 may be a useful tool for investigating the mechanism of A beta neurotoxicity in vitro and in vivo.
journal_name
Biol Pharm Bulljournal_title
Biological & pharmaceutical bulletinauthors
Hasegawa Y,Sugimoto E,Endo T,Ogawa K,Aratake H,Morikawa A,Kitaguchi Ndoi
10.1248/bpb.18.1750subject
Has Abstractpub_date
1995-12-01 00:00:00pages
1750-4issue
12eissn
0918-6158issn
1347-5215journal_volume
18pub_type
杂志文章abstract::Manganese (Mn) plays an important role in the etiology of several neurobehavioral disorders, but there is a lack of data regarding its specific effects on neurotransduction, especially dopaminergic neurotransduction. We investigated the relationship between motor deficits and alterations in the expression of tyrosine ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.31.1894
更新日期:2008-10-01 00:00:00
abstract::The effects of alpha(1)-acid glycoprotein (AGP) on human erythrocyte membrane were examined in vitro. Bovine and dog AGP, in addition to human AGP or asialo human AGP were used, and the collected data were compared with that for human serum albumin (HSA). A new technique developed by Kikuchi was used to investigate er...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.123
更新日期:2003-01-01 00:00:00
abstract::Splenic marginal zone macrophages expressing macrophage receptor with collagenous structure (MARCO) contribute to the clearance of blood-borne pathogens. We determined a splenic adherent cell fraction abundantly containing cells expressing a higher level of MARCO by flow cytometry, and examined the effects of daily ad...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b12-00875
更新日期:2013-01-01 00:00:00
abstract::Indomethacin is used as an anti-inflammatory drug and a nonselective cyclooxygenase inhibitor. When indomethacin in methanol was photo-irradiated with an Hg lamp, methyl ester, ethyl ester, and gamma-lactone derivatives of indomethacin were produced. In the present study, we found that the methyl ester derivative of i...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.2206
更新日期:2005-12-01 00:00:00
abstract::Pentosidine, a fluorescent cross-linking compound, accumulates in extracellular matrix, especially in the collagen, and is formed by the nonenzymatic process of advanced Maillard reaction. We developed a method of determination of pentosidine and tried to examine its level in urine and serum of elder patients. The met...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.21.1005
更新日期:1998-10-01 00:00:00
abstract::The complete molecule or the ligand-binding domain-containing region of each of the three subtypes of human retinoic acid receptors (hRAR alpha, hRAR beta and hRAR gamma) was expressed in Escherichia coli. The expressed recombinant RARs (rRARs: rRAR alpha/E, rRAR beta/E and rRAR gamma) showed nearly the same magnitude...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.16.343
更新日期:1993-04-01 00:00:00
abstract::To further enhance the efficiency and potential of plants for phytoremediation of mercury pollution, a genetically engineered tobacco to simultaneously express mercury transporter, mercury transporter (MerT) and mercury chelator, polyphosphate (polyP) was constructed by integrating bacterial merT gene in polyphosphate...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.32.1491
更新日期:2009-09-01 00:00:00
abstract::Costunolide is an active compound isolated from the root of Saussurea lappa Clarks, a Chinese medicinal herb, and is considered a therapeutic candidate for various types of cancers. Nevertheless, the pharmacological pathways of costunolide are still unknown. In this study, we investigate the effects of costunolide on ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.24.303
更新日期:2001-03-01 00:00:00
abstract::Accumulation of β-amyloid peptide (Aβ) in the brain plays an important role in the pathogenesis of Alzheimer’s disease (AD). Previous studies have demonstrated the neuroprotective role of osthole against oxygen and glucose deprivation in cortical neurons. However, the effects of osthole on Aβ-induced neurotoxicity in ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b13-00561
更新日期:2013-01-01 00:00:00
abstract::Bee pollen consists of floral pollen mixed with bee secretions and nectar. It has been considered as a functional food and has different kinds of biologically active ingredients, such as flavonoids, polyphenols, phytosterols and minerals. However, its function in cognition has yet been investigated. In the present stu...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b18-00552
更新日期:2019-01-01 00:00:00
abstract::Ascorbic acid, present in plasma from humans at concentrations of 50 to 200 mumol/l, has multiple antioxidant properties. Structural modification of this vitamin by the introduction of lipophilic moieties has allowed to the development of ascorbate esters and ethers active as free radical quenchers. Thus, a new series...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.19.220
更新日期:1996-02-01 00:00:00
abstract::Proteasome inhibitors are a novel class of molecular-targeted anti-cancer drugs that suppress the degradation of malfolded proteins, trigger endoplasmic reticulum (ER) stress, and activate apoptosis signals. Glucose-regulated protein 78 (GRP78), a major ER chaperone, is one of the most important molecules for transduc...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b13-00930
更新日期:2014-01-01 00:00:00
abstract::Transport mechanisms of p-aminohippurate (PAH) were investigated in rat renal brush-border membrane vesicles. The uptake of PAH was stimulated by an inside-positive membrane potential created by K+ and valinomycin. This potential-stimulated uptake of PAH was inhibited by various anion transport inhibitors and was satu...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.16.395
更新日期:1993-04-01 00:00:00
abstract::Methylripariochromene A (MRC) was isolated from the leaves of Orthosiphon aristatus (Lamiaceae) and subjected to the examination of several pharmacological actions related to antihypertensive activity. The following four findings were revealed from the present study: 1) MRC caused a continuous decrease in systolic blo...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.22.1083
更新日期:1999-10-01 00:00:00
abstract::In an acute treatment experiment, metformin (150, 300 mg/kg, per os (p.o.)) markedly reduced the consumption of a high-fat diet (HFD) (45 kcal% fat-containing diet) for 2 h after the HFD was given to the fasted male C57BL/6J (B6) mice. In addition, metformin at a higher dose increased plasma active glucagon-like pepti...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.33.963
更新日期:2010-01-01 00:00:00
abstract::This study was conducted to demonstrate the inhibitory effect of saucerneol G (SG), a new lignan, isolated from the aerial part of Saururus chinensis (Saururaceae) on lipopolysaccharide (LPS)-stimulated matrix metalloproteinase-9 (MMP)-9 inductions in RAW 264.7 cells. Aimed at evaluating the mechanism of action by whi...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.33.1944
更新日期:2010-01-01 00:00:00
abstract::The hydrodynamic method by rapid intravenous injection of a large volume of plasmid DNA is known to be an efficient and liver-specific method of in vivo gene delivery and achieves high levels of foreign gene expression, particularly in hepatocytes. Low transgene activities have also been observed in other organs such ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.32.755
更新日期:2009-04-01 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
pub_type: 杂志文章
doi:10.1248/bpb.b15-00489
更新日期:2015-01-01 00:00:00
abstract::Many plant-derived flavonoids including quercetin exhibit antioxidant and antiinflammatory properties. Proinflammatory cytokines and oxidative stress play an important role in acute pancreatitis. This study aimed to evaluate the effect of quercetin on cerulein-induced acute pancreatitis in mice. Animal groups were pre...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.33.1534
更新日期:2010-01-01 00:00:00
abstract::Pairs of forward and reverse primers and TaqMan probes specific to each of 15 human sulfotransferases were prepared. The mRNA expression level of each target enzyme was analyzed in total RNA from single and pooled specimens of various human tissues (adrenal gland, bone marrow, brain, colon, heart, kidney, liver, lung,...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.30.821
更新日期:2007-04-01 00:00:00
abstract::TRPV2, a member of the transient receptor potential family, has been isolated as a capsaicin-receptor homolog and is thought to respond to noxious heat. Here we show that TRPV2 mRNA is predominantly expressed in the subpopulation of olfactory sensory neurons (OSNs). We carried out histochemical analyses of TRPV2 and i...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b14-00413
更新日期:2014-01-01 00:00:00
abstract::In order to isolate a cholesterol-lowering compound from Alpinia katsumadai, an inhibitor for acyl-CoA : cholesterol acyltransferase (ACAT), an enzyme responsible for the cholesterol ester formation in liver, was purified, its chemical structure was determined, and in vivo and in vitro inhibition activities were perfo...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b12-00617
更新日期:2012-01-01 00:00:00
abstract::A conditioned medium (CM) was prepared by culturing human sperm at 3.0 x 10(6) sperm/ml for 12 h. The fusion index increased significantly when the sperm penetration assay (SPA) was performed with CM (0.6 without CM to 2.0 with CM). The conditioned medium was also effective on the sperm from 11 patients who showed a l...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.18.5
更新日期:1995-01-01 00:00:00
abstract::Plant phenolic compounds isolated from a 70% aqueous acetone extract of the leaves of Malus doumeri A. CHEV. var. formosana (KAWAK. & KOIDZ.) S. S. YING, a type of Taiwanese indigenous plant, were evaluated for potential application in the field of skin care. A phytochemical investigation of the active fractions resul...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.29.740
更新日期:2006-04-01 00:00:00
abstract::The effects of nefiracetam on the cerebral adenylyl cyclase (AC) activity of animals with microsphere embolism-induced memory dysfunction were examined. Sustained cerebral ischemia in the right cerebral hemisphere was induced by an injection of microspheres into the right internal carotid artery of rats. To examine le...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.318
更新日期:2003-03-01 00:00:00
abstract::The purpose of this review is to summarize the recent studies examining the expression of leukotrienes (LTs) and their receptors in nociceptive pathways, and their crucial roles in pathological pain conditions. LTs belong to a large family of lipid mediators, termed eicosanoids, which are derived from arachidonic acid...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章,评审
doi:10.1248/bpb.34.1163
更新日期:2011-01-01 00:00:00
abstract::D-Aspartate (D-Asp), a free D-amino acid found in mammals, plays crucial roles in the neuroendocrine, endocrine, and central nervous systems. Recent studies have implicated D-Asp in the pathophysiology of infertility and N-methyl-D-Asp receptor-related diseases. D-Asp oxidase (DDO), a degradative enzyme that is stereo...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b14-00690
更新日期:2015-01-01 00:00:00
abstract::In order to prepare fine granules of sparfloxacin (SPFX), a new quinolone anti-bacterial drug that shows masking of the bitter taste of SPFX and dissolutes at a rapid rate, various film-coated fine granules containing 20% SPFX and 0-52% low-substituted hydroxypropylcellulose(L-HPC) in the cores, were prepared by a spr...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.16.172
更新日期:1993-02-01 00:00:00
abstract::Fibroin, the protein of silk, and hydrolyzed fibroin have recently been described to enhance insulin sensitivity and glucose metabolism in 3T3-L1 adipocytes. Here, we report that a series of synthetic peptides derived from the fibroin sequence have enhancing effects on glucose transport in normal and insulin-resistant...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.32.427
更新日期:2009-03-01 00:00:00
abstract::Small extracellular vesicles (sEVs), including exosomes as typical example, are cell-derived vesicles comprising lipid bilayer with a diameter approximately 100 nm. sEVs are endogenous delivery vehicles that deliver their contents such as nucleic acids and proteins to recipient cells. Because of their potential nature...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章,评审
doi:10.1248/bpb.b19-00831
更新日期:2020-01-01 00:00:00