Abstract：
:Trypan blue at 50 microgram/ml stimulates the pinocytic uptake of 125I-labelled PVP, but not of colloidal 198Au or formaldehyde-denatured 125I-labelled bovine serum albumin, by the 17.5-day rat visceral yolk sac incubated in vitro. Neither Trypan blue nor a combination of the dye with 125I-labelled PVP stimulated the rate of pinocytosis of liquid by the tissue. Trypan blue itself was shown to enter the yolk-sac cells by adsorptive pinocytosis. It is proposed that an interaction between Trypan blue and 125I-labelled PVP enables the latter substrate to enter the cells adsorptively by so-called 'piggy-back' pinocytosis.
journal_name
Chem Biol Interactjournal_title
Chemico-biological interactionsauthors
Roberts G,Williams KE,Lloyd JBdoi
10.1016/0009-2797(80)90097-6subject
Has Abstractpub_date
1980-11-01 00:00:00pages
305-10issue
3eissn
0009-2797issn
1872-7786pii
0009-2797(80)90097-6journal_volume
32pub_type
杂志文章abstract：:We measured the response of HepG2 cells to the classic cytochrome (cyt.) P-450 inducers 3-methylcholanthrene (3-MC) and phenobarbital (PB), by evaluating oxidative and/or reductive metabolism of the nitroarenes, 1-NP and 1,6-dinitropyrene (1,6-DNP), in control and induced cells. In HepG2 cells, 3-MC induces ring-hydro...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(91)90057-e
更新日期：1991-01-01 00:00:00
abstract：:Nicotiana benthamiana plants were engineered to express a codon-optimized gene encoding the human acetylcholinesterase-R (AChE) isoform. The transgenic plants expressed the protein at >0.4% of total soluble protein, and the plant-produced enzyme was purified to homogeneity. Following lysis, procainamide affinity chrom...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2005.10.097
更新日期：2005-12-15 00:00:00
abstract：:4-Methylnitrosamino-1-(3-pyridyl)-1-butanone (NNK) has been identified as one of the strongest nitrosamine carcinogens in tobacco products in all species tested. Carbonyl reduction to 4-methylnitrosamino-1-(3-pyridyl)-1-butanol (NNAL) followed by glucuronosylation is considered to be the main detoxification pathway in...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(00)00304-5
更新日期：2001-01-30 00:00:00
abstract：:Since aldose reductase is localized primarily in lens epithelial cells, osmotic insults induced by the accumulation of sugar alcohols occur first in these cells. To determine whether the accumulation of sugar alcohols can induce lens epithelial cell death, galactose-induced apoptosis has been investigated in dog lens ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(00)00289-1
更新日期：2001-01-30 00:00:00
abstract：:Notwithstanding ongoing progress in anticancer therapeutics development, the persistent problem remains to selectively target tumors while sparing normal tissues. This is confounding largely because the differences between normal and tumor cells are often subtle and part of a gradient, where a gene product may be more...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/s0009-2797(97)00166-x
更新日期：1998-04-24 00:00:00
abstract：:Medium-chain dehydrogenases/reductases (MDR) alcohol dehydrogenases exhibit multiple forms through a number of gene duplications. A crucial duplication was the one leading from the glutathione-dependent formaldehyde dehydrogenase line to the liver alcohol dehydrogenase (ADH) lines of vertebrates, the first duplication...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(00)00294-5
更新日期：2001-01-30 00:00:00
abstract：:Butyrylcholinesterase (BChE) is coded by the BCHE gene that presents four exons. The non-codifying exon 1 presents two variants -116G and -116A, being -116A preferentially in cis conformation with the 539T variant (K) of exon 4 which was associated with lower BChE activity and lower body mass index (BMI) variance. Thi...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2008.04.019
更新日期：2008-09-25 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：:L-Xylulose reductase (XR) catalyzes the oxidoreduction between xylitol and L-xylulose in the uronate cycle. The enzyme has been shown to be identical to diacetyl reductase, an enzyme that reduces alpha-dicarbonyl compounds. XR belongs to the short-chain dehydrogenase/reductase family, and shows high sequence identity ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(02)00217-x
更新日期：2003-02-01 00:00:00
abstract：:We have investigated the activation of p-cresol to form DNA adducts using horseradish peroxidase, rat liver microsomes and MnO(2). In vitro activation of p-cresol with horseradish peroxidase produced six DNA adducts with a relative adduct level of 8.03+/-0.43 x 10(-7). The formation of DNA adducts by oxidation of p-cr...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(01)00274-5
更新日期：2001-12-21 00:00:00
abstract：:The intercalating dye ethidium bromide (EB), inhibits excision of pyrimidine dimers from UV-irradiated excision-proficient Escherichia coli B/r hcr+ cells. Inhibition is total at a 2.5 - 10(-4) M concentration 120 min after irradiation with a dose of 750 erg/mm2. The viability of irradiated cells diminishes in proport...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(77)90078-3
更新日期：1977-05-01 00:00:00
abstract：:The structural features which determine interaction of safrole and related methylenedioxyphenyl compounds with cytochromes P-450 or P-448, and determine the induction of these two classes of the cytochrome, have been studied. All methylenedioxyphenyl compounds studied interact with both cytochromes P-450 and P-448 eli...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/s0009-2797(85)80106-x
更新日期：1985-05-01 00:00:00
abstract：:Excision repair was measured in normal human and xeroderma pigmentosum group C fibroblasts treated with ultraviolet radiation and the carcinogens acridine mustard (ICR-170) or 4-nitroquinoline 1-oxide (4NQO) by the techniques of unscheduled synthesis, photolysis of bromodeoxyuridine incorporated into parental DNA duri...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(80)90084-8
更新日期：1980-01-01 00:00:00
abstract：:The mechanisms by which brassica vegetables might decrease the risk of cancer are reviewed in this paper. Brassicas, including all types of cabbages, broccoli, cauliflower and Brussels sprouts, may be protective against cancer due to their relatively high glucosinolate content. Glucosinolates are usually broken down t...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/s0009-2797(96)03745-3
更新日期：1997-02-28 00:00:00
abstract：:HPV infections in the oral cavity that progress to cancer are on the increase in the USA. Model systems to study co-factors for progression of these infections are lacking as HPVs are species-restricted and cannot grow in preclinical animal models. We have recently developed a mouse papillomavirus (MmuPV1) oral mucosa...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2020.109321
更新日期：2021-01-05 00:00:00
abstract：:Microsomal epoxide hydrase (EH) and 176 000 g supernatant fraction glutathione-S-transferase (GSH-S-T) activities were determined with styrene oxide as substrate in rat testes during postnatal development. The development of these enzymes was also followed in liver for comparison. Testes of 6-day-old rats had high GSH...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(78)90122-9
更新日期：1978-09-01 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：:The biotoxin okadaic acid (OA) is a lipophilic secondary metabolite of marine microalgae. Therefore, OA accumulates in the fatty tissue of various shellfish and may thus enter the food chain. The ingestion of OA via contaminated marine species can lead to the diarrhetic shellfish poisoning syndrome characterized by th...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2020.108937
更新日期：2020-02-01 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：:The effects of dietary treatment with clofibrate (0.5% w/w for 10 days) on the livers of selenium-deficient male rats were examined. The peroxisome proliferation (as determined by electron microscopy) in the livers of selenium-deficient animals was much less pronounced than in the case of selenium-adequate rats and no...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(92)90052-m
更新日期：1992-11-30 00:00:00
abstract：:Monomeric carbonyl reductase 1 (CBR1, SDR21C1) is a member of the short-chain dehydrogenase/reductase superfamily and is involved in the metabolism of anthracycline anti-cancer drugs, prostaglandins, and isatin, which is an endogenous inhibitor of monoamine oxidases. Additionally, cancer progression may be partly regu...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2012.11.023
更新日期：2013-02-25 00:00:00
abstract：:The polycyclic aromatic hydrocarbon (PAH) benzo[ghi]perylene (BghiP) lacks a "classic" bay-region and is therefore unable to form vicinal dihydrodiol epoxides thought to be responsible for the genotoxicity of carcinogenic PAHs like benzo[a]pyrene. The bacterial mutagenicity of BghiP increases considerably after inhibi...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2008.07.010
更新日期：2008-11-25 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：:Arginase is a therapeutic enzyme for arginine-auxotrophic cancers but their low anticancer activity, less proteolytic tolerance and shorter serum half-life are the major shortcomings. In this study, arginase from Pseudomonas aeruginosa IH2 was purified to homogeneity and estimated as 75 kDa on native-PAGE and 37 kDa o...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2017.07.001
更新日期：2017-08-25 00:00:00
abstract：:The main goal of the present study was to obtain insight into depot formation and penetration following percutaneous VX poisoning, in order to identify an appropriate decontamination window that can enhance or support medical countermeasures. The study was executed in two phases, using the hairless guinea pig as an an...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2016.02.001
更新日期：2017-04-01 00:00:00
abstract：:Covalent modification of NTE, a neuronal protein with serine esterase activity, by certain organophosphates (OP) initiates degeneration of long axons in the peripheral and central nervous system. Simple inhibition of NTE esterase activity does not initiate neuropathy; the latter requires aging of the OP bound to the c...
journal_title：Chemico-biological interactions
pub_type： 杂志文章,评审
doi：10.1016/s0009-2797(99)00065-4
更新日期：1999-05-14 00:00:00
abstract：:Reactive metabolites formed from benzene include benzene oxide, trans,trans muconaldehyde, quinones, thiol adducts, phenolic metabolites and oxygen radicals. Susceptibility to the toxic effects of benzene has been suggested to occur partly because of polymorphisms in enzymes involved in benzene metabolism which includ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2009.11.017
更新日期：2010-03-19 00:00:00
abstract：:It has been postulated that reversible, high-affinity binding of 3-methylcholanthrene(MC)-type inducers to a receptor protein (the Ah receptor) in hepatic cytosol is essential for induction of aryl hydrocarbon hydroxylase (AHH) enzymic activity. To test this postulate, the binding affinities of 16 highly-purified, syn...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/0009-2797(82)90045-x
更新日期：1982-04-01 00:00:00
abstract：:The cytotoxic potential of a naturally occurring indoloquinazoline alkaloid, soyauxinium chloride (SCHL), was determined on a broad panel of animal and human cancer cell lines, including various sensitive and drug-resistant phenotypes. The cytotoxicity, SCHL-induced autophagic, ferroptotic, and necroptotic cell death ...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2020.109334
更新日期：2021-01-05 00:00:00
abstract：:Intracellular calcium (Ca(2+)i) overload induced by chronic hypoxia alters Ca(2+)i homeostasis, whereas ameliorating calcium homeostasis is believed to be responsible for cardioprotection. We hypothesize that cardioprotection by electromagnetic fields (EMF) exposure may restore Ca(2+)i homeostasis altered by hypoxia i...
journal_title：Chemico-biological interactions
pub_type： 杂志文章
doi：10.1016/j.cbi.2016.02.003
更新日期：2016-03-25 00:00:00
