Abstract:
:Effects of nebracetam, a novel nootorpic agent, on the synaptosomal uptake of neurotransmitter monoamines of the brain regions were examined. Striatal and hippocampal synaptosomes were isolated by the Percoll gradient method, and the striatal dopamine uptake and hippocampal serotonin uptake were measured in the presence of different concentrations (1 to 1000 microM) of nebracetam in vitro. A significant reduction in dopamine uptake in the striatum and serotonin uptake in the hippocampus was seen at concentrations of 100 microM or above. In in vivo microdialysis study, there were no appreciable changes in the extracellular concentrations of striatal dopamine and hippocampal serotonin when this agent at a dose of 30 mg/kg, which was effective in improving ischemic brain energy metabolism, was applied i.p. to the rat. The ineffectiveness of nebracetam in the in vivo microdialysis may be due to low levels of the concentration of nebracetam when the agent was administered i.p. at a dose of 30 mg/kg, since the brain blood concentration of this agent is pharmacokinetically estimated to be no more than 15 microM when this dose of nebracetam is employed. Thus, it is unlikely that this agent at a pharmacologically effective dose alters dopamine or serotonin uptake in the brain nerve terminal under normal conditions.
journal_name
Biol Pharm Bulljournal_title
Biological & pharmaceutical bulletinauthors
Takeo S,Hayashi H,Tadokoro M,Takagi K,Miyake K,Takagi N,Oshikawa Sdoi
10.1248/bpb.20.360subject
Has Abstractpub_date
1997-04-01 00:00:00pages
360-3issue
4eissn
0918-6158issn
1347-5215journal_volume
20pub_type
杂志文章abstract::Glucocorticoids have multiple systemic effects that may influence bone metabolism but also directly affect osteoblasts by decreasing their proliferation. Using human osteoblastic SaM-1 cells, we examined whether the effects of hydrocortisone on cellular proliferation are mediated by hepatocyte growth factor (HGF). Hum...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.700
更新日期:2011-01-01 00:00:00
abstract::Adult T-cell leukemia (ATL) is a severe chemotherapy-resistant malignancy associated with prolonged infection by the human T cell-lymphotropic virus 1 (HTLV-1). One approach to prevent the onset of ATL is to inhibit the growth/transmission of HTLV-1 infected cells using arsenic trioxide (As(2)O(3)). However, there are...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.32.1286
更新日期:2009-07-01 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
pub_type: 杂志文章
doi:10.1248/bpb.34.1291
更新日期:2011-01-01 00:00:00
abstract::We investigated the properties of honokiol, a natural rexinoid, as a regulator of retinoid X receptor (RXR) heterodimers with various partner nuclear receptors (NRs), in comparison with those of the synthetic rexinoid bexarotene. Honokiol alone was hardly capable of activating peroxisome proliferator-activated recepto...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.35.1
更新日期:2012-01-01 00:00:00
abstract::This study was conducted to investigate the effects of the extracts of green romaine lettuce (GRE) on sleep enhancement. GRE contains 1071.7 and 199.2 µg/g of extracts of lactucin and lactucopicrin, respectively, known as sleep enhancement substances. When 100 mg/kg of GRE was administered orally, sleep latency and du...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b19-00454
更新日期:2019-01-01 00:00:00
abstract::The number of alkalotolerant intestinal bacteria was 1% of the total flora in humans and 0.8% of those in rats. The beta-glucosidase and beta-glucuronidase activity of these intestinal bacteria was induced by elevating the pH of the medium, but the growth was not changed. The enzyme activity in a medium of pH 7 was 5-...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.17.423
更新日期:1994-03-01 00:00:00
abstract::To clarify the pathogenicity and the pathogenic factors of Candida tropicalis strains, five strains, IFO 0199, IFO 0587, IFO 0589, IFO 1400, and IFO 1647, of C. tropicalis were tested for their lethality to mice, adherence to Hela cells, hydrophobicity, cell growth under acidic conditions (pH 2.0-5.9), and sucrose ass...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.31.1507
更新日期:2008-08-01 00:00:00
abstract::Ogi-Keishi-Gomotsu-To-Ka-Kojin (OKGK) is a traditional herbal medicine (Kampo medicine) which has been found to ameliorate hypercholesterolemia and hypertriglyceridemia in rats and rabbits. In the present study, the effect of OKGK on acyl-CoA:cholesterol acyltransferase (ACAT) was studied in order to elucidate the mec...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.22.994
更新日期:1999-09-01 00:00:00
abstract::The enhanced effect of urethane anesthesia on the serum creatine kinase (CPK) level following administration of hypolipidemic agents was examined to develop a convenient experimental screening method for drug-induced myopathy. After oral administration of a hypolipidemic agent to rats, 25% urethane solution was infuse...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.20.104
更新日期:1997-01-01 00:00:00
abstract::The present study provides the first evidence that stilbene oxide and styrene oxide are reductively metabolized to the corresponding olefins in rats. When cis- or trans-stilbene oxide was given orally to rats, both cis- and trans-stilbene were isolated from the urine and feces. Styrene was also isolated from the urine...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.23.265
更新日期:2000-02-01 00:00:00
abstract::We have previously reported the expression of CYP genes in human myeloblastic and lymphoid cell lines, and the induction of the CYP3A4 and GSTP1 genes by oxidative stress in the human erythroleukemia cell line, K562. To further elucidate the role of drug metabolizing enzymes in hematogenesis, we have characterized the...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.30.1954
更新日期:2007-10-01 00:00:00
abstract::Silymarin is a polyphenolic flavonoid from milk thistle (Silybum marianum), which has anti-inflammatory, cytoprotective, and anticarcinogenic effects. In this study, we assessed the effect of silibinin (Fig. 1), the major active compound in silymarin, on ultraviolet light (UV)-induced cell apoptosis in HaCaT cells, a ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.29.1096
更新日期:2006-06-01 00:00:00
abstract::Ferulic acid (FA), a naturally occurring polyphenol abundant in vegetables and rice bran, is known to possess a potent antioxidant activity, thereby protecting cells from oxidative stress. In the present study, we show that in addition to its known anti-oxidant activity, ferulic acid exerts substantial inhibitory acti...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b12-00695
更新日期:2013-01-01 00:00:00
abstract::We examined the action mechanism of oleanolic acid 3-O-monodesmoside, momordin Ic (1), and oleanolic acid 3-O-glucuronide (2) for the inhibitory effect on the increase in serum glucose levels in oral glucose-loaded rats. Although 1 and 2 dose-dependently inhibited the increase in serum glucose levels in oral glucose-l...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.20.717
更新日期:1997-06-01 00:00:00
abstract::Curcumin is a natural polyphenolic compound abundant in the rhizome of the perennial herb turmeric, Curcuma longa. It is commonly used as a dietary spice and coloring agent in cooking, and is used anecdotally as an herb in traditional Indian and Chinese medicine. It has been reported that curcumin has the potential to...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.974
更新日期:2011-01-01 00:00:00
abstract::Small interfering RNAs (siRNAs) are expected to offer a means of treating rheumatoid arthritis (RA) because they allow the specific silencing of genes related to RA pathogenesis. In our previous study, we reported that the siRNA targeted against RelA (anti-RelA siRNA), an important nuclear factor-kappaB (NF-κB) subdom...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.b17-00481
更新日期:2017-01-01 00:00:00
abstract::A new HPLC method has been developed for measuring clonazepam (CZP) in plasma, using a reversed-phase non-porous silica column packed with 2 microm particles. CZP in plasma was first purified with a column extraction technique and injected onto a non-porous silica column. The calibration curve was linear from 5-200 ng...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.27.893
更新日期:2004-06-01 00:00:00
abstract::The convulsant interaction between enoxacin (ENX), a new quinolone antibacterial agent (NQ), and felbinac (FLB), a non-steroidal anti-inflammatory drug (NSAID), in vivo was reproduced as the change of GABA-induced current response in Xenopus oocytes injected with mouse brain mRNA. GABA (10 microM) response was inhibit...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.16.726
更新日期:1993-07-01 00:00:00
abstract::The oral cavity contains almost half of the commensal bacterial population present in the human body. An increase in the number of these microorganisms may result in systemic diseases such as infective endocarditis and aspiration pneumonia as well as oral infections. It is essential to control the total numbers of the...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.34.638
更新日期:2011-01-01 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
pub_type: 杂志文章
doi:10.1248/bpb.21.461
更新日期:1998-05-01 00:00:00
abstract::Beta-D-Xylosidase (EC 3.2.1.37) has been purified from ginsenoside Ra-metabolizing Bifidobacterium breve K-110, which was isolated from human intestinal microflora. beta-D-Xylosidase was purified to apparent homogeneity by a combination of ammonium sulfate precipitation, QAE-cellulose, butyl-toyopearl, hydroxyapatit a...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.1170
更新日期:2003-08-01 00:00:00
abstract::Effects of atorvastatin and pravastatin on glucose tolerance in mildly induced diabetic rats by streptozotocin at 24 mg/kg, i.v. were studied. Non-diabetic and diabetic rats were given orally 0.5% carboxymethylcellulose (control), 8 mg/kg atorvastatin or 8 mg/kg pravastatin once a day for 6 weeks. An oral glucose tole...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.26.1681
更新日期:2003-12-01 00:00:00
abstract::We investigated the changes (increase or decrease in peak intensity) in the expression of plasma proteins in spontaneously diabetic WBN/Kob rats that were with complicated diabetic nephropathy, to determine multiple biomarkers in the plasma of diabetic rats. The present study using surface enhanced laser desorption/io...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.28.1031
更新日期:2005-06-01 00:00:00
abstract::We investigated the selectivity of T-440 for the inhibition of phosphodiesterases (PDEs) in vitro and for bronchial anti-spasmogenic effects in vivo. Using a fast protein liquid chromatography system, five PDE isozymes, PDE 1, PDE 2, PDE 3, PDE 4 and PDE 5 were prepared from guinea pig and dog tissues. T-440 selective...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.20.1261
更新日期:1997-12-01 00:00:00
abstract::Two angiotensin-I-converting enzyme (ACE) inhibitory peptides were isolated from a tryptic hydrolysate of human serum albumin (HSA). The peptides were identified by sequencing and other analyses as Ala-Trp and the nonapeptide Ala-Phe-Lys-Ala-Trp-Ala-Val-Ala-Arg (human albutensin A), corresponding to f(213-214) and f(2...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.23.879
更新日期:2000-07-01 00:00:00
abstract::Most of the fatigue in everyday life is a combination of physical and mental fatigue. Recently, an animal model of combined fatigue was designed by housing rats in a cage filled with water. We have previously hypothesized that mental fatigue is caused partly by neuronal brain damage through the activation of N-methyl-...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.35.481
更新日期:2012-01-01 00:00:00
abstract::Proteinase-activated receptor-2 (PAR2) may be an important regulator of skin mast cell function during cutaneous inflammation and hypersensitivity. However, little is known of the role of PAR2 in allergic pruritus, because mast cells, which are thought to be responsible for this symptom, can release a number of differ...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.32.1173
更新日期:2009-07-01 00:00:00
abstract::Collagen-induced arthritis (CIA) is an experimental model of rheumatoid arthritis (RA) used for studying the clinical, immunological and genetic factors of the disease. Many studies of genetic susceptibility to CIA have been performed, usually with two strains of mice, DBA/1 and B10.RIII, since they are highly suscept...
journal_title:Biological & pharmaceutical bulletin
pub_type: 杂志文章
doi:10.1248/bpb.29.1300
更新日期:2006-06-01 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
pub_type: 杂志文章
doi:10.1248/bpb.27.574
更新日期:2004-04-01 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