Abstract：
:The effects of norharman (NH) on the metabolism of dibenzo[a,e]-fluoranthene (DBF) and on its fixation on DNA, RNA and proteins have been studied in vitro by incubation with S-9 and microsomes from rats and mice. NH causes a decrease of the activity of microsome monooxygenases proportionally to its concentration but has no effect on the activity of NADPH P-450 reductase nor on that of epoxide hydrolase. Paradoxically, the amount of DBF hydrophobic metabolites and especially that of diols and phenols, increases in the incubation mixture in the presence of NH; this increase is independent of the presence of conjugation enzymes of cytosol. NH does not modify the covalent binding of DBF on the microsome RNA, conversely it decreases the binding of DBF on the DNA and on the proteins of the incubation mixture. This could partly explain the increase of DBF diols and phenols by an accumulative effect. Two higher homologs of NH: benzo[g]-beta carboline and benzo[i]-beta carboline, tested under the same conditions, proved inhibitory.
journal_name
Chem Biol Interactjournal_title
Chemico-biological interactionsauthors
Perin-Roussel O,Ekert B,Zajdela Fdoi
10.1016/0009-2797(81)90169-1subject
Has Abstractpub_date
1981-10-01 00:00:00pages
109-22issue
1-2eissn
0009-2797issn
1872-7786pii
0009-2797(81)90169-1journal_volume
37pub_type
杂志文章abstract：:The ability of pantoprazole to affect the induction of cytochrome P450 (CYP) 1A subfamily was evaluated and compared with two other proton pump inhibitors, omeprazole and lansoprazole, in primary cultured hepatocytes from female Sprague-Dawley rats. The hepatocytes were cultured for 2 days, followed by treatment for 2...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(97)00074-4
更新日期：1997-11-06 00:00:00
abstract：:Nasal metabolism of inhaled material may influence its biological fate and toxicity. The purpose of this study was to investigate, in a noninvasive and qualitative manner, the in vivo nasal metabolic activity towards 1-(3,4-methylenedioxyphenyl)propane (dihydrosafrole). Dihydrosafrole was the compound of choice as a r...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(87)90056-1
更新日期：1987-01-01 00:00:00
abstract：:Lanthanides (Ln) were known to induce cell apoptosis, which might be the results of their effects on mitochondria (MT). This study was trying to clarify the role of MT and reactive oxygen species (ROS) in Ln-induced apoptosis. We found that micromolar or lower concentration of La(3+), Gd(3+) and Yb(3+) bound to MT and...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(03)00072-3
更新日期：2003-07-25 00:00:00
abstract：:Green tea catechins (GTCs) are polyphenolic flavonoids formerly called vitamin P. GTCs, especially (-)-epigallocatechin-3-gallate (EGCG), lower the incidence of cancers, collagen-induced arthritis, oxidative stress-induced neurodegenerative diseases, and streptozotocin-induced diabetes. Also, inhibition of adipogenesi...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2007.02.008
更新日期：2007-04-25 00:00:00
abstract：:Alkyl adducts at the O6-position of guanine constitute promutagenic DNA lesions likely to be involved in the initiation of malignant transformation. They can be removed by a cellular acceptor protein termed O6-alkylguanine-DNA alkyltransferase (AT). In rat liver this repair enzyme can be induced by a variety of hepato...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(86)90060-8
更新日期：1986-12-01 00:00:00
abstract：:Methylmercury is a widely distributed environmental toxicant with detrimental effects on the developing and adult nervous system. Due to its accumulation in the food chain, chronic exposure to methylmercury via consumption of fish and sea mammals is still a major concern for human health, especially developmental expo...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2010.04.007
更新日期：2010-11-05 00:00:00
abstract：:Sulfur mustard is a highly toxic chemical warfare agent with devastating impact on intoxicated tissues. DNA cross-links are probably the most toxic DNA lesions induced in the cell by sulfur mustard. The comet assay is a very sensitive method for measuring DNA damage. In the present study using the A-549 lung cell line...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2015.05.009
更新日期：2015-07-25 00:00:00
abstract：:The glyoxalase system is a metabolic pathway that catalyses the detoxification of alpha-oxoaldehydes RCOCHO to corresponding aldonic acids RCH(OH)CO2H. It thereby protects cells from alpha-oxoaldehyde-mediated formation of advanced glycation endproducts (AGEs). It is comprised of two enzymes, glyoxalase I and glyoxala...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/s0009-2797(97)00157-9
更新日期：1998-04-24 00:00:00
abstract：:The effects of three fatty acids on cytotoxic aggregate formation of Ca(2+)-depleted bovine alpha-lactalbumin (apo-BLA) have been studied by UV absorbance spectroscopy and transmission electron microscopy. The experimental results demonstrate that two unsaturated fatty acids, oleic acid and linoleic acid, and one satu...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2009.03.019
更新日期：2009-07-15 00:00:00
abstract：:The most common non-communicable diseases (NCD) are obesity, cardiovascular disease, diabetes, cancer, chronic respiratory diseases, and neurological diseases. Together, they constitute the commonest cause of death and disability worldwide. Mitochondrial alterations, oxidative stress and inflammation underpin NCD and ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2016.04.005
更新日期：2016-11-25 00:00:00
abstract：BACKGROUND:The human body is a home to thousands of microbiotas. It is defined as a community of symbiotic, commensal and pathogenic microorganisms that have existed in all exposed sites of the body, which have co-evolved with diet, lifestyle, genetic factors and immune factors. Human microbiotas have been studied for ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/j.cbi.2019.108732
更新日期：2019-09-01 00:00:00
abstract：:Five mouse anti-human butyrylcholinesterase (BChE) monoclonal antibodies bind tightly to native human BChE with nanomolar dissociation constants. Pairing analysis in the Octet system identified the monoclonal antibodies that bind to overlapping and independent epitopes on human BChE. The nucleotide and amino acid sequ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2015.11.011
更新日期：2016-01-05 00:00:00
abstract：:The antitumor agent cis-diamminedichloroplatinum(II) (cis-DDP) reacts covalently with DNA and disrupts its secondary structure. Damaged DNA, but not native DNA, is readily digested by S1 nuclease, an endonuclease specific for single stranded polynucleotides. We have measured S1 nuclease digestion of platinated DNA by ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(90)90003-6
更新日期：1990-01-01 00:00:00
abstract：:Butyrylcholinesterase (BChE) constitutes the first line defense in the serum of higher organisms and is a marker for toxic exposure. Indole-3-acetic acid (IAA) is a major plant growth hormone of the auxin class, affecting cell enlargement, and differentiation. As a result of the industrial usage, this agrochemical is ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2005.10.061
更新日期：2005-12-15 00:00:00
abstract：:Human serum paraoxonase/arylesterase (PON1, EC 3.1.8.1.) is a calcium-dependent enzyme which hydrolyzes a wide variety of organophosphates, including paraoxon, DFP, sarin and soman. Although the 3-D structure of PON has not yet been determined and its sequence shows no similarity with any other crystallized proteins, ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(99)00015-0
更新日期：1999-05-14 00:00:00
abstract：:Acetylcholinesterase (AChE) inhibitors increase the availability of acetylcholine in central cholinergic synapses and are the most promising drugs currently available for the treatment of Alzheimer's disease (AD). Our screening study indicated that the water fraction of the methanolic extract of Lycopodiella cernua (L...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2015.07.008
更新日期：2015-10-05 00:00:00
abstract：:Organophosphorus compounds have been widely employed to the development of warfare nerve agents and pesticides, resulting in a huge number of people intoxicated annually, being a serious problem of public health. Efforts worldwide have been done in order to design new technologies that are capable of combating or even...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2019.06.007
更新日期：2019-08-01 00:00:00
abstract：:The hypolipidemic fibrates have been identified as agonists of the peroxisome proliferator-activated receptor alpha (PPARalpha), which plays a critical role in the regulation of cardiac fatty acid metabolism. Despite the widespread clinical use of fibrates, their role in myocardial oxidative stress and fatty acid comp...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2006.02.003
更新日期：2006-04-15 00:00:00
abstract：:Environmental pollutant, Lead (Pb) is known to induce neurotoxicity in human. The central nervous system is the most vulnerable to the minute levels of Pb induced toxicity. Pb has been linked to Alzheimer's disease (AD) as a probable risk factor, as it shows epigenetic and developmental link associated with Alzheimer'...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2019.108927
更新日期：2020-01-25 00:00:00
abstract：:Sensitivities of the strains belonging to four vibrio biotypes to the action of furazolidone were investigated. Vibrio cholerae (classical) was most and Vibrio parahaemolyticus least sensitive to this drug. Statistical analyses revealed significant differences between any two of the four types of vibrio in respect of ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(81)90118-6
更新日期：1981-11-01 00:00:00
abstract：:Oxalate induced renal calculi formation and the associated renal injury is thought to be caused by free radical mediated mechanisms. An in vivo model was used to investigate the effect of phycocyanin (from Spirulina platensis), a known antioxidant, against calcium oxalate urolithiasis. Male Wistar rats were divided in...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2004.05.006
更新日期：2004-08-10 00:00:00
abstract：:Mitochondrial dysfunction appears to contribute to some of the loss of function accompanying ageing. Mitochondria from aged tissue use oxygen inefficiently impairing ATP synthesis and results in increased oxidant production. A high flux of oxidants not only damages mitochondria, but other important cell biomolecules a...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(01)00268-x
更新日期：2001-11-28 00:00:00
abstract：:Gentamicin-induced nephrotoxicity has been well documented, although the causing mechanisms and preventative measures need further investigation. The current study aimed to explore the potential protective impacts of celecoxib, a selective cyclooxygenase-2 (COX-2) inhibitor, on gentamicin-induced nephrotoxicity and th...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2019.108863
更新日期：2020-01-05 00:00:00
abstract：:In the present study, we examined the effects of hemin on the mutagenicity of 6-sulfooxymethylbenzo[a]pyrene (SMBP) in Salmonella typhimurium TA98 and Chinese hamster lung fibroblast (V79) cells. The compound was tested for the possible chemoprotective activity against mutagenesis induced by SMBP and its precursor, 6-...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(97)00137-3
更新日期：1998-02-20 00:00:00
abstract：:Interest in organoselenide chemistry and biochemistry has increased in the past three decades, mainly due to their chemical and biological activities. Here, we investigated the protective effect of the organic selenium compound diphenyl diselenide (PhSe)2 (5 μmol/kg), in a mouse model of methylmercury (MeHg)-induced b...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2013.08.002
更新日期：2013-10-25 00:00:00
abstract：:The in vivo metabolite patterns of 2,5-difluoroaminobenzene and of its nitrobenzene analogue, 2,5-difluoronitrobenzene, were determined using 19F NMR analysis of urine samples. Results obtained demonstrate significant differences between the biotransformation patterns of these two analogues. For the aminobenzene, cyto...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(94)03317-2
更新日期：1995-01-01 00:00:00
abstract：:Polycyclic aromatic hydrocarbons (PAHs) such as benzo(a)pyrene (BaP) are widely-distributed environmental contaminants known to exert toxic effects in various tissues, including placenta. PAHs have notably been shown to inhibit proliferation of trophoblastic cells. The present study was designed to determine whether P...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2013.12.004
更新日期：2014-03-05 00:00:00
abstract：:UDP-glucuronosyltransferases (UGTs) are a family of phase II drug metabolizing enzymes that catalyze glucuronidation of numerous endogenous and exogenous substrates. Carbon tetrachloride (CCl4) is widely used to develop liver injuries mimicking human liver diseases. However, effects of CCl4 on the expression and activ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2020.109115
更新日期：2020-07-01 00:00:00
abstract：:Oxidative stress can induce complex alterations of membrane proteins in red blood cells (RBCs) eventually leading to hemolysis. RBCs represent a good model to investigate the damage induced by oxidizing agents. Literature data have reported that chalcogen compounds can present pro-oxidant properties with potent inhibi...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2008.10.007
更新日期：2009-01-15 00:00:00
abstract：:In Alzheimer's disease (AD) a reduction in acetylcholinesterase (AChE) and an increase in butyrylcholinesterase (BChE) activity are observed. K variant (539T) is the most common variant of the BCHE gene and, although controversial, several studies reported association between K variant and AD. Previous results showed ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2012.09.008
更新日期：2013-03-25 00:00:00
