Abstract：
:Oral administration of O,O,S-trimethyl phosphorothioate (OOS), an impurity present in widely used organophosphorus insecticides, causes delayed toxicity in rats, i.e., death occurring as late as 28 days after the treatment. The signs of toxicity include body weight loss (maximum on day 3), red staining around the nose, mouth and eyes, and an increased level of lactate dehydrogenase (LDH) in bronchopulmonary lavage fluid accompanied by morphological alteration of non-ciliated bronchiolar epithelial Clara cells. Pretreatment with phenobarbital, piperonyl butoxide (2 h), SKF 525-A, or small multiple doses of OOS protected against the OOS-induced elevated level of bronchopulmonary lavage LDH, and the other signs of delayed toxicity including morphological alteration of Clara cells. These studies support the view that OOS-induced delayed toxicity is mediated by the cytochrome P-450 dependent metabolism of OOS, and the lung may be the major target organ of delayed toxicity produced by OOS.
journal_name
Chem Biol Interactjournal_title
Chemico-biological interactionsauthors
Imamura T,Hasegawa L,Gandy J,Fukuto TRdoi
10.1016/0009-2797(83)90042-xsubject
Has Abstractpub_date
1983-07-01 00:00:00pages
53-64issue
1eissn
0009-2797issn
1872-7786pii
0009-2797(83)90042-Xjournal_volume
45pub_type
杂志文章abstract：:Increasing evidence has shown that dysregulation of microRNA-621 (miR-621) is demonstrated to be associated with several cancers. However, the role of miR-621 in bladder cancer (BCa) remains unclear. Herein, we aimed to study the expression pattern, biological function, and molecular mechanism of miR-621 in BCa. First...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2019.05.042
更新日期：2019-08-01 00:00:00
abstract：:Fluorinated nucleoside analogues are a major class of cancer chemotherapy agents, and include the drugs 5-fluorouracil (5FU) and 5-fluoro-2'-deoxyuridine (FdUrd). The aim of this study was to examine the cellular toxicity of two novel fluorinated pyrimidine L-nucleosides that are enantiomers of D-nucleosides and may b...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2015.08.010
更新日期：2015-10-05 00:00:00
abstract：:The microsomal metabolism of pentachlorophenol (PCP) was investigated, with special attention to the conversion dependent covalent binding to protein and DNA. The two metabolites detected were tetrachloro-1,2- and tetrachloro-1,4-hydroquinone. Microsomes from isosafrole (ISF)-induced rats were by far the most effectiv...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(86)90013-x
更新日期：1986-10-15 00:00:00
abstract：:7,12-Dimethylbenz(a)anthracene (DMBA) and 7-methoxymethyl-12-methylbenz(a)anthracene (MeO-DMBA) are converted to a number of products during short exposures in aqueous suspension to laboratory illumination. The mixture of products binds to glyceraldehyde-3-phosphate dehydrogenase (GPDH) while inhibiting its activity b...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(76)90095-8
更新日期：1976-02-01 00:00:00
abstract：:Nuclear receptor activation in liver leads to coordinated alteration of the expression of multiple gene products with attendant phenotypic changes of hepatocytes. Peroxisome proliferators including endogenous fatty acids, environmental chemicals, and drugs induce a multi-enzyme metabolic response that affects lipid an...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2013.11.006
更新日期：2014-02-25 00:00:00
abstract：:Hepatocellular carcinoma (HCC) chemoresistance, which is regarded as a kind of stress management reaction to chemotherapy drugs, severely hinders the therapy outcomes of HCC treatment. Stress management is generally achieved by activating certain signal pathways and chemical factors, among which, nuclear factor-E2-rel...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2017.12.014
更新日期：2018-01-25 00:00:00
abstract：:We are investigating treatments for cocaine abuse based on viral gene transfer of a cocaine hydrolase (CocH) derived from human butyrylcholinesterase, which can reduce cocaine-stimulated locomotion and cocaine-primed reinstatement of drug-seeking behavior in rats for many months. Here, in mice, we explored the possibi...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2012.08.015
更新日期：2013-03-25 00:00:00
abstract：:High content of hydroxyflavones in fruits, vegetables, cereals and herbs makes them a common component of the human diet. Because of their antioxidant, antiviral, antibacterial, anti-inflammatory, anticancer properties they still pay an attention of many scientific centers. Hydroxyflavones may form complexes with meta...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2017.06.016
更新日期：2017-08-01 00:00:00
abstract：:The relationship between dimethylnitrosamine (DMN) demethylase activity and DMN-induced mutagenesis was investigated in Drosophila melanogaster. The activity of DMN-demethylase was at least 10-fold greater in the Hikone-R strain than in three other Drosophila strains. However, the sex-linked recessive lethal (SLRL) mu...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(83)90006-6
更新日期：1983-08-15 00:00:00
abstract：:The current experimental work deals with the immunomodulatory studies on the extract of Withania somnifera (L.) Dunal root powder against benzo(a)pyrene induced lung cancer in male Swiss albino mice. In our previous study, we reported the antioxidant and anticarcinogenic effect of W. somnifera (L.) Dunal along with pa...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2005.11.003
更新日期：2006-02-25 00:00:00
abstract：:The effects of benzoflavones on skin tumor initiation by polycyclic hydrocarbons and epidermal aryl hydrocarbon hydroxylase were investigated. 7,8-Benzoflavone (7,8-BF) was found to be a potent inhibitor of the inhibition of skin tumors by 3-methylcholanthrene (MC) as well as 7,12-dimethylbenz(a)anthracene (DMBA). 5,6...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(77)90093-x
更新日期：1977-06-01 00:00:00
abstract：:Heart rhythm disturbances have been widely recognized as major triggers of cardiovascular (CV) mortality in chronic kidney disease (CKD) patients. Connexin 43 (Cx43)-composed gap junctions are essential in cardiomyocyte synchronization and may be involved in the pathological response to uremic toxins. Indoxyl sulfate ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2020.108979
更新日期：2020-03-01 00:00:00
abstract：:The mechanisms by which soybean- and soybean isoflavone-enriched diets inhibit carcinogenesis are not known. We found that the isoflavones genistin and daidzin, and their respective aglucone forms daidzein and genistein, block 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; dioxin)-induced CYP1A1 enzyme activity. This inhi...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(99)00121-0
更新日期：1999-11-15 00:00:00
abstract：:In the present study, we demonstrated that calcium phosphate (CaP) nanoparticles formed in cell culture media were implicated in the process of high inorganic phosphate (Pi) mediated osteogenic differentiation of rat bone marrow stromal cells (BMSCs). Exposure of BMSCs in vitro to high Pi-containing media reduced alka...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2015.06.027
更新日期：2015-08-05 00:00:00
abstract：:Organophosphourus compounds (OPC, including nerve agents and pesticides) exhibit acute toxicity by inhibition of acetylcholinesterase. Lung affections are frequent complications and a risk factor for death. In addition, epidemiological studies reported immunological alterations after OPC exposure. In our experiments w...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2013.08.011
更新日期：2013-12-05 00:00:00
abstract：:Organophosphorus compounds (OP), which mainly penetrate via the percutaneous pathway, represent a threat for both military and civilians. Body surface decontamination is vital to prevent victims poisoning. The development of a cost-effective formulation, which could be efficient and easy to handle in case of mass cont...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2016.04.035
更新日期：2017-04-01 00:00:00
abstract：:We have directly compared in resting human mononuclear leukocytes the DNA repair effects caused by ADP-ribosyl transferase (ADPRT) activity following DNA damage induction by gamma radiation, UV radiation, ethylene oxide (EO) and N-acetoxy-2-acetylaminofluorene (NA-AAF). The presence of inhibitors of ADPRT during the q...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(83)90162-x
更新日期：1983-12-01 00:00:00
abstract：:The goal of this study was to assess acetylcholinesterase (AChE) inhibition at different regions of the gastrointestinal (GI) tract following inhalation exposure to nerve agent sarin. Seven major regions of the GI tract were removed from saline control animals (n=3) and 677.4 mg/m(3) sarin-exposed animals at 4h (n=4) ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2010.03.011
更新日期：2010-09-06 00:00:00
abstract：:A detailed subfractionation of the non-pregnant porcine corpus luteum (CL) was performed employing differential centrifugation. Marker enzyme assays (i.e., lactate dehydrogenase for the cytosol, NADPH-cytochrome P450 reductase for the endoplasmatic reticulum, catalase (CAT) for peroxisomes, glutamate dehydrogenase for...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2003.10.002
更新日期：2004-01-15 00:00:00
abstract：:Chronic exposure of humans to benzene causes severe bone marrow cell depression leading to aplastic anemia. Marrow stromal macrophage dysfunction and deficient interleukin-1 production has been reported for patients with severe aplastic anemia. The stromal macrophage, a target of benzene toxicity, is involved in hemat...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(95)03647-4
更新日期：1995-12-22 00:00:00
abstract：:Immunomodulation is a process, which alters the immune system of an organism by interfering with its functions. This interference results in either immunostimulation or immunosuppression. An immunomodulator is any substance that helps to regulate the immune system. This "regulation" is a normalization process, so that...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2008.01.008
更新日期：2008-05-28 00:00:00
abstract：:In CF1 mice lindane treatment led to a significant increase in liver tumor incidence whilst in Osborne-Mendel rats it was not carcinogenic. Although somewhat less clear, the test in B6C3F1 mice led to the conclusion that under the conditions of the bioassay lindane was not carcinogenic for this strain. In this study, ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(82)90024-2
更新日期：1982-05-01 00:00:00
abstract：:Plant-based systems continue to play an essential role in healthcare, and their use by different cultures has been extensively documented. Baccharis trimera, popularly known as carqueja, is a plant widely distributed in South America and has been traditionally used for treating several diseases particularly associated...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2018.09.002
更新日期：2018-12-25 00:00:00
abstract：:Acetylcholinesterase (AChE) is an enzyme which terminates the cholinergic neurotransmission, by hydrolyzing acetylcholine at the nerve and nerve-muscle junctions. The reversible inhibition of AChE was suggested as the pre-treatment option of the intoxications caused by nerve agents. Based on our derived 3D-QSAR model ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2019.06.027
更新日期：2019-08-25 00:00:00
abstract：:Cataract is the most frequent cause of blindness worldwide and is treated by surgical removal of the opaque lens to restore the light path to the retina. While cataract surgery is a safe procedure, some patients develop a complication of the surgery involving opacification and wrinkling of the posterior lens capsule. ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2017.01.017
更新日期：2017-10-01 00:00:00
abstract：:Many benzo[b]furan lignans are known to be biologically active in nature. 2-(3'-Methoxy-4'-hydroxy-phenyl)-5-(3-hydroxypropyl)-7-methoxy-benzo[b]furan-3-carbaldehyde (XH-14) is found as a bioactive component isolated from the plant Salvia miltiorrhiza, commonly known as Danshen, which is a traditional Chinese medicine...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2010.09.017
更新日期：2010-12-05 00:00:00
abstract：:The reaction characteristics of chlorothalonil with glyceraldehyde-3-phosphate dehydrogenase (GPDH), from yeast, (EC 1.2.1.12) were studied in vitro. Enzyme inhibition was related to the amount of [14C]chlorothalonil bound to the protein. Kinetics of enzyme inhibition was non-competitive for the substrate glyceraldehy...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(75)90069-1
更新日期：1975-06-01 00:00:00
abstract：:Keeping in mind the vasodilator action of prostaglandins, the control that they exercise over the vascular supply of kidneys and the sympathetic activity, research was conducted in order to establish the effect of arachidonic acid, the precursor of PGE2, on experimental hypertension in the rat. The experimental hypert...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(75)90087-3
更新日期：1975-04-01 00:00:00
abstract：:In a preliminary study screening anti-proliferative natural alkaloids, a very potent benzophenanthridine, chelidonine showed strong cytotoxicity in cancer cells. While several modes of death have been identified, most of anti-cancer attempts have focused on stimulation of cells to undergo apoptosis. Chelidonine seems ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2014.09.013
更新日期：2014-11-05 00:00:00
abstract：:Intracellular calcium (Ca(2+)i) overload induced by chronic hypoxia alters Ca(2+)i homeostasis, which plays an important role on mediating myocardial injury. We tested the hypothesis that treatment with trimetazidine (TMZ) would improve Ca(2+)i handling in hypoxic myocardial injury. Cardiomyocytes isolated from neonat...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2015.04.022
更新日期：2015-07-05 00:00:00
