Abstract：
:Rat erythrocytes were incubated in vitro with various selenium compounds at 37 degrees. Hemolysis occurred with some selenium compounds but not with corresponding sulfur analogues. Selenite induced more rapid loss of intracellular glutathione (GSH) than did selenocystine but was less hemolytic. Cystine caused neither loss of intracellular GSH nor hemolysis. Addition of GSH to the incubation medium enhanced hemolysis by selenite and selenium dioxide but inhibited hemolysis by selenocystine. Inclusion of glucose in the incubation medium also inhibited selenocystine-induced lysis of erythrocytes from both selenium-supplemented rats and selenium-deficient rats. The results suggest a relationship between the oxidation of intracellular GSH and the hemolysis by selenocystine, selenite and selenium dioxide.
journal_name
Biochem Pharmacoljournal_title
Biochemical pharmacologyauthors
Hu ML,Spallholz JEdoi
10.1016/0006-2952(83)90611-1subject
Has Abstractpub_date
1983-03-15 00:00:00pages
957-61issue
6eissn
0006-2952issn
1873-2968pii
0006-2952(83)90611-1journal_volume
32pub_type
杂志文章abstract：:Overactive bladder (OAB) syndrome is a prevalent condition of the lower urinary tract that causes symptoms, such as urinary frequency, urinary urgency, urge incontinence, and nocturia, and disproportionately affects women and the elderly. Current medications for OAB merely provide symptomatic relief with considerable ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.bcp.2020.114363
更新日期：2020-12-09 00:00:00
abstract：:Characteristics of methotrexate (MTX) inhibition of dihydrofolic acid reductase (DHFR) enzyme activity and the effects of NADPH and NADH on enzyme-drug interaction were studied. Two highly sensitive assay procedures were used. The first utilized tritium-labeled MTX to measure direct binding properties of the enzyme an...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(83)90047-3
更新日期：1983-06-15 00:00:00
abstract：:The antithyroid drug propylthiouracil (PTU) has been shown previously to reduce hepatic oxygen utilization and to protect the liver from ethanol-induced injury. The present study examined the effect of PTU on hepatic microsomal oxygen consumption and on the activities of NADPH-cytochrome P450 reductase (CYP-reductase)...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(95)00007-m
更新日期：1995-03-30 00:00:00
abstract：:Human immunodeficiency virus type 1 (HIV-1) is wholly dependent on its host cell for a variety of essential metabolites. Among the latter are the deoxynucleoside-5'-triphosphates (dNTPs) required for reverse transcription of the single-stranded RNA viral genome into double-stranded viral DNA. Since viral DNA synthesis...
journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/s0006-2952(97)00664-3
更新日期：1998-05-15 00:00:00
abstract：:In addition to the established control of acid secretion of the class of proton pump inhibitors (PPI) reactivity from the pyridyl methyl sulphinyl benzimidazole type a second independent anti-inflammatory reactivity was observed in vitro. This inhibitory reactivity was clearly noticed using three different assays wher...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2006.01.009
更新日期：2006-04-28 00:00:00
abstract：:Using a continuous perfusion system, synaptosomes prepared from rat brain released [3H]norepinephrine in a Ca2+-dependent manner when pulse depolarized by briefly elevating external potassium concentrations. Tetrodotoxin (10(-7) M), a sodium channel blocker, inhibited 48% of this pulsed release, and D595 (10(-5) M), a...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(89)90460-7
更新日期：1989-07-15 00:00:00
abstract：:Angiogenesis has emerged as a critical process for tumour progression. Identifying key pathways involved in the regulation and promotion of angiogenesis has resulted in the development of numerous approaches targeting pro-angiogenic signalling pathways. The most prominent and characterised pro-angiogenic pathway is th...
journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/j.bcp.2011.02.016
更新日期：2011-05-15 00:00:00
abstract：:The specific binding of three cardiac glycosides, 3H-ouabain, 3H-digitoxin and 3H-dihydrodigitoxin, to beef cardiac (Na+ + K+)-ATPase was compared. Non-specific binding was defined as that in the presence of 0.1 mM unlabelled compound, or in the absence of ligands. The dissociation constants (KD-values) calculated fro...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(83)90202-2
更新日期：1983-11-01 00:00:00
abstract：:We reported previously that the flavoprotein inhibitor diphenyleneiodonium sulfate (DPI) irreversibly inhibited the metabolic activation of glyceryl trinitrate (GTN) in isolated aorta, possibly through inhibition of vascular NADPH-cytochrome P450 reductase (CPR). We report that the content of CPR represents 0.03 to 0....
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(98)00216-0
更新日期：1998-10-01 00:00:00
abstract：:Escape from the proper control of the cell cycle by up-regulation of cyclins or aberrant activation of cyclin-dependent kinases (CDKs) as well as by inactivation of cellular inhibitors of CDKs (CKI) leads to malignant transformation. Loss of cellular CKIs in cancers provided a rationale for development of pharmacologi...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2008.07.040
更新日期：2008-12-01 00:00:00
abstract：AIM/HYPOTHESIS:The aim of this study was to develop an insulin-resistant cell culture model in skeletal muscle cell line by chronic presence of insulin in serum-free medium and to determine the effect of thiazolidinediones on insulin signaling. METHODS:We differentiated C2C12 in a combination of serum-free medium in p...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(02)01509-5
更新日期：2003-01-15 00:00:00
abstract：:OSI-930, a dual c-Kit and KDR tyrosine kinase inhibitor, is reported to have undergone a Phase I dose escalation study in patients with advanced solid tumors. A series of fifteen pyridyl and phenyl analogues of OSI-930 were designed and synthesized. Extensive screening of these compounds led to the discovery that nitr...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2012.06.019
更新日期：2012-09-15 00:00:00
abstract：:Glucose metabolism and hemoglobin reactivity in intact human erythrocytes were assessed in the presence of the tryptophan metabolites, 3-hydroxyanthranilate (3-HAT), quinolinate and picolinate. Of these compounds, only 3-HAT altered red cell oxidative status by inducing, in a dose-dependent manner, formation of methem...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(89)90301-8
更新日期：1989-05-15 00:00:00
abstract：:To provide a background for future studies on neurodegenerative changes in the spinal cord, the present study analysed the distribution of the activity of methionine adenosyltransferase (ATP:L-methionine S-adenosyltransferase, EC 2.5.1.6, MAT), an enzyme that catalyses the synthesis of the biological methyl group dono...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(00)00316-6
更新日期：2000-08-01 00:00:00
abstract：:Plasma hyaluronan (HA) concentration and the rate of HA uptake by the isolated, perfused liver were measured in rats treated with saline, D-galactosamine (GaI-NH2, 50 mg/100 g body wt), gadolinium chloride (GdCl3) (0.5 mg/100 g body wt), and GdCl3 + GaI-NH2. GdCl3 was given 24 hr before GaI-NH2 or saline. Plasma L-ala...
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：BACKGROUND:Salvinorin A (SA) is a potent anti-inflammatory diterpene isolated from the Mexican plant S. divinorum. Recently we showed that the novel SA analog, PR-38 has an inhibitory effect on mouse gastrointestinal (GI) motility mediated by opioid and cannabinoid (CB) receptors. The aim of the study was to characteri...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2014.09.018
更新日期：2014-12-15 00:00:00
abstract：:Imidazoline-like drugs are centrally-acting antihypertensive agents that inhibit the activity of the sympathetic nervous system by interacting with the alpha2-adrenoreceptor and also with a non-adrenergic imidazoline binding site called the imidazoline 1 receptor. Recently, these molecules were proposed to play an add...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2005.01.005
更新日期：2005-04-01 00:00:00
abstract：:The genus Mycobacterium includes non-pathogenic species such as M. smegmatis, and pathogenic species such as M. tuberculosis, the causative agent of tuberculosis (TB). Treatment of TB requires a lengthy regimen of several antibiotics, whose effectiveness has been compromised by the emergence of resistant strains. New ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2013.05.004
更新日期：2013-07-15 00:00:00
abstract：:Surfaces of higher eukaryotes such as plants, invertebrates, and vertebrates, including humans, are normally covered with microorganisms but usually are not infected by them. The reason, apart from physical barriers, is the production of gene-encoded antimicrobial peptides by epithelial cells. Many novel antimicrobial...
journal_title：Biochemical pharmacology
pub_type： 杂志文章,评审
doi：10.1016/s0006-2952(98)00226-3
更新日期：1999-01-15 00:00:00
abstract：:Cisplatin is a potent chemotherapeutic drug widely used for the treatment of human cancer. However, its efficacy against hepatocellular carcinoma (HCC) is poor for reasons that remain unclear. We show here that prothymosin-alpha (PTMA) is overexpressed in HCC cell lines. Silencing PTMA using short-hairpin RNA sensitiz...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2016.10.003
更新日期：2016-12-15 00:00:00
abstract：:Class B peptide hormone GPCRs are targets for the treatment of major chronic disease. Peptide ligands of these receptors display biased agonism and this may provide future therapeutic advantage. Recent active structures of the calcitonin (CT) and glucagon-like peptide-1 (GLP-1) receptors reveal distinct engagement of ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2018.02.005
更新日期：2018-04-01 00:00:00
abstract：:Guanidines, amidines, S-alkylisothioureas, and other compounds containing the amidine function (-C(=NH)NH2) have been described as inhibitors of the generation of nitric oxide (NO) by NO synthase (NOS). Here we report on the inhibition of the activity of NOS isoforms by compounds in which the amidine function is attac...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(97)00196-2
更新日期：1997-08-01 00:00:00
abstract：:The oxazaphosphorine agent cyclophosphamide (CP) is an alkylating agent with a relative low stem cell toxicity. The aim of this study was to further evaluate the stem cell toxicity of the active metabolites of CP and its structural analogue ifosfamide (IFO) in comparison to their antileukemic efficacy. Cells of differ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(02)00868-7
更新日期：2002-04-01 00:00:00
abstract：:Metastatic migration of murine L1210 leukemia cells, sensitive and resistant to the antitumor agent L-phenylalanine mustard, from the peritoneal cavity of mice to the liver resulted in a 2-fold elevation in their GSH content. This increase in GSH was accompanied by a corresponding increase in their resistance to the d...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(86)90326-6
更新日期：1986-05-15 00:00:00
abstract：:We investigated the amplification of bleomycin-induced DNA cleavage by synthetic triamides containing N-methylpyrrole (Py) and/or N-methylimidazole (Im), PyPyPy, PyPyIm, PyImPy, and PyImIm, using 32P-labeled DNA fragments obtained from the human c-Ha-ras-1 and p53 genes. Peplomycin, a bleomycin analog, plus Fe(II) cau...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(00)00563-3
更新日期：2001-02-01 00:00:00
abstract：:Porcine cerebral microvessels were isolated by differential sieving and centrifugation and were characterized by microscopic examination and marker enzyme enrichment (gamma-glutamyltransferase; EC 2.3.2.2). Purified microvessels contained a membrane-bound enzyme immunologically indistinguishable from renal aminopeptid...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(88)90712-5
更新日期：1988-01-15 00:00:00
abstract：:Heme oxygenase 1 (HO-1) is a stress protein and has been suggested to provide defense mechanisms against agents that may induce oxidative injury. Vitamin E (VE) is considered to function as an important cellular antioxidant. Rats were fed a VE-deficient (0E) or a VE-sufficient (10E) diet for 6 weeks and then were intr...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/s0006-2952(97)00302-x
更新日期：1997-11-15 00:00:00
abstract：:Azatoxin was rationally designed as a DNA topoisomerase II (top2) inhibitor [Leteurtre et al., Cancer Res 52: 4478-4483, 1992] and was also found to inhibit tubulin polymerization. Its cytotoxicity is due to action on tubulin at lower concentrations and on top2 at higher concentrations. At intermediate concentrations,...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(95)00047-4
更新日期：1995-05-11 00:00:00
abstract：:Cell based studies have suggested that the diabetes drug metformin may combine with the anaplastic lymphoma kinase receptor (ALK) inhibitor crizotinib to increase ALK positive lung cancer cell killing and overcome crizotinib resistance. We therefore tested metformin alone and in combination with crizotinib in vivo, by...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/j.bcp.2020.114345
更新日期：2021-01-01 00:00:00
abstract：:Binding studies with (-)-[125I]cyanopindolol (ICYP) were conducted to characterize beta-adrenoceptors in plantaris and soleus muscles of rats (male, 250-300 g). The distribution of beta 1- and beta 2-adrenoceptors in different muscle fiber types, identified in serial sections by succinic dehydrogenase (SDH) staining, ...
journal_title：Biochemical pharmacology
pub_type： 杂志文章
doi：10.1016/0006-2952(91)90516-8
更新日期：1991-10-09 00:00:00
