Abstract：
:The inhibitory effect of a range of nitroimidazole-derivatives on H2 production by metronidazole resistant (CDC-85) and susceptible (C1-NIH) Trichomonas vaginalis strains was investigated. The 2-, 4-, and 5-nitro-derivatives used had one-electron reduction potentials within the range -250 to -525 mV. Nitroimidazole concentrations giving 50% inhibition of H2 production (kiH2) for compounds with one-electron reduction potentials in the range -250 to -425 mV were found to be similar for both strains tested. Compounds with one-electron reduction potentials below -425 mV give 10-fold higher KiH2 values for the metronidazole resistant isolate. Both strains showed increased KiH2 for compounds with potentials lower than -500 mV. The addition of 2.1 kPa (0.02 atm) O2 to the gas phase resulted in increasing the kiH2 values for all the compounds tested, but had the greater effect on results obtained with the resistant isolate using nitroimidazoles in the range -425 to -490 mV. The results enable the proposal that the resistant isolate CDC-85 has a ferredoxin with altered redox properties or reduced intracellular levels.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Yarlett N,Yarlett NC,Lloyd Ddoi
10.1016/0006-2952(86)90327-8subject
Has Abstractpub_date
1986-05-15 00:00:00pages
1703-8issue
10eissn
0006-2952issn
1873-2968pii
0006-2952(86)90327-8journal_volume
35pub_type
杂志文章abstract：:Tumor necrosis factor (TNF) is a pleiotropic cytokine that mediates different cellular responses including cytotoxicity, cytostasis, proliferation, differentiation and expression of specific genes. Recent studies have demonstrated that chemotherapeutic drugs that inhibit the nuclear enzyme DNA topoisomerase II synergi...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(93)90468-c
更新日期：1993-10-05 00:00:00
abstract：:The normal sexual dimorphism in murine hepatic hexobarbital metabolism (i.e. females greater than males) was found to be absent in senescent animals. Hexobarbital metabolism, expressed as microsomal activity of hexobarbital hydroxylase and hexobarbital-induced sleep time, in senescent male mice was similar to that in ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(88)90724-1
更新日期：1988-01-15 00:00:00
abstract：:Purinergic stimulation of surfactant secretion via exocytosis of lamellar bodies is mediated by an elevation of the intracellular Ca2+ concentration ([Ca2+](i)). We tested the dihydropyridine (DHP) analogues isradipine (+/-enantiomers), nifedipine and Bay K 8644 (racemic forms) on ATP-induced surfactant secretion and ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(01)00582-2
更新日期：2001-05-01 00:00:00
abstract：:A strain of hyperlipidaemic Sprague-Dawley (HSD) rat was compared with normal Sprague-Dawley (SD) rats for expression of cholesterol 7alpha-hydroxylase activity (CYP7A1) and other cytochrome P450 (P450) enzymes in liver. Hepatic microsomal CYP7A1 activity in male HSD rats was 2-3-fold lower than in male SD rats with C...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(98)00015-x
更新日期：1998-07-15 00:00:00
abstract：:Cardiac steroids are used to treat various diseases including congestive heart failure and cancer. The aim of this study was to investigate the anti-leukemic activity of UNBS1450, a hemi-synthetic cardenolide belonging to the cardiac steroid glycoside family. Here, we report that, at low nanomolar concentrations, UNBS...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2010.08.025
更新日期：2011-01-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(03)00547-1
更新日期：2003-11-01 00:00:00
abstract：:Energy-dependent drug efflux is a major factor in cellular resistance of P388/R84 mouse leukemic cells to anthracyclines such as doxorubicin (DOX), and blocking of efflux increases sensitivity. However, efflux does not play a significant role in resistance to N-trifluoroacetyladriamycin-14-valerate (AD 32), a DOX anal...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(90)90151-a
更新日期：1990-02-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(86)90581-2
更新日期：1986-07-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(87)90013-x
更新日期：1987-11-01 00:00:00
abstract：:Tumor necrosis factor-alpha (TNF-alpha) is a mediator of multiple inflammatory diseases. Vascular endothelial growth factor (VEGF) plays a critical role in TNF-alpha-mediated diseases. We investigated the inhibitory effects of 3,3',4',5,5',7-hexahydroxyflavone (myricetin), an abundant natural flavonoid, on TNF-alpha-i...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2008.10.027
更新日期：2009-02-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(94)90495-2
更新日期：1994-03-02 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(93)90300-l
更新日期：1993-04-22 00:00:00
abstract：BACKGROUND:Rho-Associated kinases ROCK1 and ROCK2 have been extensively investigated in the pathogenesis of cardiovascular disease. However, their roles are not fully understood in carcinogenesis. In this study, we investigated whether ROCK1 or ROCK2 is required for the survival and growth of hepatocellular carcinoma (...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2020.114353
更新日期：2020-12-02 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2012.03.022
更新日期：2012-07-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(88)90427-3
更新日期：1988-05-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(93)90553-9
更新日期：1993-08-17 00:00:00
abstract：:We have studied the cellular pharmacokinetics of carboplatin (CBDCA), as part of the evaluation of the antitumor activity of CBDCA in cancers limited to the peritoneal cavity in comparison with cisplatin (cDDP). The uptake of CBDCA into L1210 (lymphosarcoma), CC531 (colonic carcinoma), COV413.B (human ovarian carcinom...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(91)90723-i
更新日期：1991-07-05 00:00:00
abstract：:AKT1 (c-AKT, PKBalpha) is the cellular homolog of the protein-serine/threonine kinase oncogene, v-akt. AKT1 is activated through the insulin and platelet-derived growth factor signaling pathways in transfected fibroblasts, but little is known about the regulation of endogenous AKT1 in tumor cells. AKT1 levels were hig...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(99)00125-2
更新日期：1999-08-01 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(86)90757-4
更新日期：1986-12-15 00:00:00
abstract：:Non-steroidal anti-inflammatory drugs (NSAIDs) cause a range of adverse effects, some of which have been associated with perturbances of lipid metabolic pathways. Previous data demonstrating stereoselective formation of the CoA thioester of R-ibuprofen in particular were suggestive of possible stereoselective effects ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(98)00342-6
更新日期：1999-04-01 00:00:00
abstract：:Incubation of human carcinoma cells with mitoxantrone resulted in an intracellular distribution of the drug into cytoplasmic, nuclear and cytoskeletal compartments occurring within 1 min of drug treatment. Incubation of the cells in drug-free medium resulted in an efflux of the drug such that 80% of the intracellular ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(89)90527-3
更新日期：1989-12-01 00:00:00
abstract：:Most anti-inflammatory agents used in the treatment of joint diseases exert inhibitory effects on leukocyte infiltration. Methotrexate, a disease-modifying drug, and corticosteroids also inhibit leukocyte accumulation during inflammation. However, the mechanisms of action of these different compounds on leukocytes var...
journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/s0006-2952(99)00056-8
更新日期：1999-07-15 00:00:00
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journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2010.06.040
更新日期：2010-10-15 00:00:00
abstract：:The first-generation histamine H1-receptor antagonists, chlorpheniramine (CPHE) and diphenhydramine (DPH), may activate histamine release from basophils and mast cells. Because CPHE and DPH are cationic-amphiphilic and because several substances with such physicochemical properties activate heterotrimeric regulatory g...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(95)02123-x
更新日期：1996-01-26 00:00:00
abstract：:The elimination and metabolism of a single dose (100 mg/kg) of 2,4-dinitrotoluene (2,4-DNT) in A/J mice were examined. After intraperitoneal administration, elimination was rapid, with 70% of the dose appearing in the urine within 4 hr. Four hours after oral administration, only 28.5% of the dose was excreted in the u...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(85)90598-2
更新日期：1985-04-01 00:00:00
abstract：:Treatment of rats with carbon tetrachloride (CCl4) resulted in early reproducible losses of either one or two specific polypeptides (depending on the inducing agent with which the animals had been treated) in the molecular weight range of the multiple forms of cytochrome P-450. The loss was correlated with a decrease ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(82)90439-7
更新日期：1982-03-01 00:00:00
abstract：:The influence of both short- and long-term ethanol exposure on the lipid metabolism was determined in the human hepatoma cell line HepG2. Ethanol did not cause any cytotoxicity or lipid peroxidation even after 7 days of 100 mM ethanol treatment of HepG2 cells. Incubation of cells in the presence of [1-(14)C]ethanol de...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(02)00896-1
更新日期：2002-04-15 00:00:00
abstract：:Eleven naturally occurring flavonoids representing five different chemical classes were studied for their effects on human basophil histamine release triggered by six different stimuli. The flavonoids included flavone, quercetin, taxifolin, chalcone, apigenin, fisetin, rutin, phloretin, tangeretin, hesperetin, and nar...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(84)90102-3
更新日期：1984-11-01 00:00:00
abstract：:ABT-770 [(S)-N-[1-[[4'-trifluoromethoxy-[1,1'-biphenyl]-4-yl]oxy]methyl-2-(4,4-dimethyl-2,5-dioxo-1-imidazolidinyl)ethyl]-N-hydroxyformamide], a matrix metalloproteinase inhibitor (MMPI), produced generalized phospholipidosis in rats. Phospholipid accumulation was accompanied by retention of drug-related material and ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(01)00823-1
更新日期：2001-12-15 00:00:00
abstract：:Inflammatory events are tightly associated with the death caused by Herpes simplex virus 1 (HSV-1) infection of the brain. Heat shock protein 90 (Hsp90) is a molecular chaperone that is stimulated in response to many stressful conditions (e.g., inflammation and hypoxia) and Hsp90 inhibitors are suggested to be potent ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2019.05.003
更新日期：2019-08-01 00:00:00
