Abstract:
:1 The urinary recovery of metabolites of aspirin (ASA) was studied in 45 volunteers who took a therapeutic dose (600 mg) of ASA by mouth and in 37 patients who took ASA in overdose. 2 The main metabolite recovered from the volunteers was the glycine conjugate, salicyluric acid (SUA), which accounted for 75.01 +/- 1.19% of total urinary metabolites, whereas salicylic acid (SA) accounted for 8.82 +/- 0.56%. Recovery of SUA was negatively correlated with that of SA (r = -0.8625, P less than 0.001). 3. In 24 patients with admission plasma salicylate concentrations of 240-360 mg l-1, SUA accounted for 46.66 +/- 3.22% and SA for 31.88 +/- 4.02%. 4. In 13 patients with admission plasma salicylate concentrations of 715-870 mg l-1, SUA accounted for 21.57 +/- 3.65% and SA for 64.72 +/- 4.82%. 5. Reduced excretion of salicylate as SUA was also accompanied by increased elimination as gentisic acid and salicylic acid phenolic glucuronide indicating that the unsaturated processes that lead to the formation of these metabolites contribute significantly (22-23%) to the inactivation of large doses of salicylate. 6. While the Michalis-Menten kinetics of ASA have been well demonstrated at lower doses, our findings illustrate the progressive saturation of SUA formation under conditions of increasing ASA load to toxic amounts and raise issues about the in-vivo glycine pool when ASA is taken in overdose.
journal_name
Hum Exp Toxicoljournal_title
Human & experimental toxicologyauthors
Patel DK,Hesse A,Ogunbona A,Notarianni LJ,Bennett PNdoi
10.1177/096032719000900302subject
Has Abstractpub_date
1990-05-01 00:00:00pages
131-6issue
3eissn
0960-3271issn
1477-0903journal_volume
9pub_type
杂志文章abstract::Periodontitis is a common infectious disease associated with destruction of periodontal ligaments and alveolar bones. CD4(+) T cell-mediated immune response is involved in the progression of periodontitis. Tobacco consumption increases the risk of periodontal disease. However, the impact of nicotine on the interaction...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327115614383
更新日期:2016-09-01 00:00:00
abstract:BACKGROUND:Deliberate self-poisoning (DSP) is a major health problem with increasing incidence mainly among young people. OBJECTIVE:To examine the clinical and toxicological characteristics of DSP, it is compared to unintentional (non-DSP) exposures and those characteristics which might be associated with increased to...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht454oa
更新日期:2004-07-01 00:00:00
abstract::Persistent organic pollutants (POPs) are organic (carbon-based) compounds that include synthesized substances (pesticides and polychlorinated biphenyls [PCBs]) and other by-product substances generated as a result of human and natural activity (dioxins and furans). Extensive scientific studies have shown that POPs are...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109347048
更新日期:2009-09-01 00:00:00
abstract::Sulphur is an essential micronutrient required by the body in low concentrations, but its high intake can lead to a serious health hazard. Sulphur compounds are reported to induce several toxic responses in animals, but so far no reports are available on the toxic effects of elemental sulphur, following dietary supple...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht435oa
更新日期:2004-05-01 00:00:00
abstract:BACKGROUND:Acute kidney injury (AKI) is the main clinical concern resulted from ischemia-reperfusion injury (IRI). Ample clinical data indicates that AKI is associated with distant organ dysfunctions and poor patients' outcomes. Oxidative stress and inflammation have a critical role in the pathogenesis of organ injurie...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327120979014
更新日期:2020-12-16 00:00:00
abstract::In this study, the effect of a combination of vitamin C, vitamin E and selenium on ethanol-induced duodenal mucosal damage in rats was investigated morphologically and biochemically. The duodenal mucosal injury was produced by oral administration of 1 mL of absolute ethanol to each rat. Animals received vitamin C (250...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327104ht468oa
更新日期:2004-08-01 00:00:00
abstract::1. Adult male albino rats (CF Strain) were administered i.p. CS2 dissolved in cotton seed oil at doses of 25, 50, 100 and 200 mg/kg b. wt. for a period of 60 days. Effect of CS2 on epididymis, adrenal weight, sperm count and sperm head shape abnormality was studied. 2. Epididymal weight remained unaltered in 25, 50 an...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/096032799678839608
更新日期:1999-12-01 00:00:00
abstract::Derivatives of dehydrocrotonin (DHC; Compound I) with different anti-ulcerogenic properties but less toxicity were produced by reducing the cyclohexenone moiety of DHC with NaBH4 (Compound II), reducing the cyclohexenone and lactone moieties with LiAlH4 (Compound III) and transforming the lactone moiety into an amide ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327102ht246oa
更新日期:2002-05-01 00:00:00
abstract::The aim of this study was to compare the number of inactivated-influenza vaccine-related spontaneous abortion and stillbirth (SB) reports in the Vaccine Adverse Event Reporting System (VAERS) database during three consecutive flu seasons beginning 2008/2009 and assess the relative fetal death reports associated with t...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112455067
更新日期:2013-05-01 00:00:00
abstract::1. In humans morphine is metabolised to morphine-3-glucuronide (M3G) which possess no opioid activity, and morphine-6-glucuronide (M6G) which is a potent opioid receptor agonist that probably contribute to the desired as well as toxic effects of morphine. 2. In order to investigate the possible effect of ranitidine on...
journal_title:Human & experimental toxicology
pub_type: 临床试验,杂志文章
doi:10.1177/096032719801700611
更新日期:1998-06-01 00:00:00
abstract::Prolonged zidovudine (AZT) treatment in HIV-infected and AIDS patients is shown to induce liver toxicity leading to complications. Therapeutic regimen that could encounter this adverse effect is unavailable and management of toxicity is often symptomatic or is limited to withdrawal of therapy. In the present investiga...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327114567765
更新日期:2015-11-01 00:00:00
abstract::Information on the acute effects associated with the handling of 1,4-dioxane is sparse. Our aim was to evaluate the acute effects of 1,4-dioxane vapours. In a screening study, six healthy volunteers rated symptoms on a visual analogue scale (VAS), while exposed to stepwise increasing levels of 1,4-dioxane, from 1 to 2...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327106073805
更新日期:2006-12-01 00:00:00
abstract::The color of the teeth is an important topic for many people and can be influenced by intrinsic and extrinsic stains. There is an increasing demand for whitening of the teeth year by year. The most popular way of whitening is "bleaching," which is the result of the breakdown of pigments located in the enamel and/or th...
journal_title:Human & experimental toxicology
pub_type: 临床试验,杂志文章
doi:10.1177/0960327118817103
更新日期:2019-04-01 00:00:00
abstract::There is compelling evidence in support of positive associations between zinc (Zn) deficiency and high accumulation of cadmium (Cd) in biological samples of different cancerous patients. The incidence of mouth cancer has been increased among people who possess habit of drinking alcohol, tobacco smoking and chewing wit...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109360045
更新日期:2010-03-01 00:00:00
abstract::1. The herbicide, paraquat, is accumulated by the energy-dependent polyamine uptake pathway of alveolar type II cells. There it undergoes redox cycling that results in an amplified production of toxic reactive oxygen species and depletion of NADPH and other reducing equivalents. These processes account for the lung be...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719401300808
更新日期:1994-08-01 00:00:00
abstract::The study of Jayjock and Lewis, 'Implication of Hormesis for Industrial Hygiene', represents a challenge for the scientific community to consider hormesis as a possible working hypothesis for redefining risk assessment strategy for low-dose exposures in the realm of industrial hygiene. This invited commentary aims at ...
journal_title:Human & experimental toxicology
pub_type: 评论,杂志文章
doi:10.1191/0960327102ht269xx
更新日期:2002-07-01 00:00:00
abstract::Diabetes mellitus promoted an overproduction of free radicals and an increased incidence of both diabetic nephropathy and liver disease. In this report, we evaluated the effects of Chinese and Brazilian propolis on streptozotocin-induced hepatorenal injury in rats. The results demonstrated that Chinese propolis-treate...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110387456
更新日期:2011-09-01 00:00:00
abstract::This study deals with pesticide exposure profile in some European countries with a specific focus on ethylenebisdithiocarbamates (EBDC). In all, 55 Bulgarian greenhouse workers, 51 Finnish potato farmers, 48 Italian vineyard workers, 42 Dutch floriculture farmers, and 52 Bulgarian zineb producers entered the study. Ea...
journal_title:Human & experimental toxicology
pub_type: 杂志文章,多中心研究
doi:10.1177/0960327108100003
更新日期:2008-09-01 00:00:00
abstract::The objective of this study was to determine the reliability of denial of acetaminophen ingestion in intentional drug overdose patients. All intentional drug overdose patients admitted to an emergency department who were able to provide a history were included. A detailed history was obtained on names, timing and numb...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110366784
更新日期:2011-01-01 00:00:00
abstract::1. This study examines the effect of treating rats with gentamicin (80 mg kg-1 day-1 intramuscularly (i.m.), for 6 days) alone or with either L-thyroxine or the anti-thyroid drug carbimazole. 2. Gentamicin produced significant increases in serum creatinine and urea concentrations, and significantly reduced the activit...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/096032719501400103
更新日期:1995-01-01 00:00:00
abstract::Cyanate and its active form isocyanate are formed mainly in the process of nonenzymatic urea biodegradation. Cyanate is capable of protein S- and N-carbamoylation, which can affect their activity. The present studies aimed to demonstrate the effect of cyanate on activity of the enzymes implicated in anaerobic cysteine...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327110394225
更新日期:2011-10-01 00:00:00
abstract::In this study, genotoxic activities of four halogenated anesthetics (halothane, isoflurane, sevoflurane and desflurane) were investigated in human peripheral blood lymphocytes (PBLs) and sperm cells in vitro by alkaline comet assay. For this purpose, sperm or lymphocyte suspension was exposed to different concentratio...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112446818
更新日期:2012-12-01 00:00:00
abstract::Potassium bromate (KBrO3) is a potent nephrotoxic agent. In this paper, we report the chemopreventive effect of Nigella sativa (black cumin) on KBrO3-mediated renal oxidative stress, toxicity and tumor promotion response in rats. KBrO3 (125 mg/kg body weight, intraperitoneally) enhances lipid peroxidation, gamma-gluta...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/0960327103ht349oa
更新日期:2003-04-01 00:00:00
abstract::1 The concentrations of a range of organochlorine pesticide residues have been determined in 168 samples of human milk collected between January 1997 and May 1998 in the UK. 2 Of the 18 residues sought, only p,p'-DTT, p,p'-DDE, dieldrin, HCB, beta-HCH and gamma-HCH were detected. 3 The continuing trend of a reduction ...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1191/096032799678839392
更新日期:1999-10-01 00:00:00
abstract::The time-dependent changes in lead (Pb) concentrations in major tissues, serum and urine, and the Pb biomarker delta-aminolevulinic acid (ALA) concentration in urine were studied in rats after sub-chronic Pb exposure. Female Sprague-Dawley (SD) rats were exposed to Pb in drinking water at concentrations of 100 ppm and...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109107046
更新日期:2009-10-01 00:00:00
abstract::Recent studies have proposed the use of low concentrations of phytochemicals and combinations of phytochemicals in chemoprevention to reduce cytotoxicity and simulate normal ingestion through diet. The purpose of the present study was to evaluate whether the DNA damage, chromosome instability, and oxidative stress ind...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327112468911
更新日期:2013-08-01 00:00:00
abstract::This study presents the findings of free radical scavenging and antigenotoxic effect of hydroalcoholic extract of Cymbopogon citratus (CCE). The CCE at a concentration of 60 microg/mL resulted in a significant scavenging ability of 2,2-diphenyl-2-picryl hydrazyl (DPPH; (85%), 2,2-azinobis (3-ethyl benzothiazoline-6-su...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327109104822
更新日期:2009-04-01 00:00:00
abstract::Amyloid beta (Aβ) peptide aggregation and cholinergic neurodegeneration are involved in the development of cognitive impairment. Therefore, in this article, we examined rosuvastatin (RSV), an oral hypolipidemic drug, to determine its potential as a dual inhibitor of acetylcholinesterase (AChE) and Aβ peptide aggregati...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327117705431
更新日期:2018-04-01 00:00:00
abstract::The current study was undertaken to evaluate the effect of combined therapy of gabapentin and pantoprazole against forestomach and pylorus ligation-induced gastric esophageal reflux disease (GERD) in albino Wistar rats. Rats were randomly divided into five groups, each group consisting of six rats, fasted for 24 h, un...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327119893409
更新日期:2020-04-01 00:00:00
abstract:OBJECTIVE:The present work aimed to investigate the relationship between occupational exposure to airborne molds, serum aflatoxin B1 (AFB1), and liver enzymes of workers handling wheat flour. METHODS:The study included 90 bakers, 100 flour milling workers, and 100 controls with no exposure to flour dust. Workplace asp...
journal_title:Human & experimental toxicology
pub_type: 杂志文章
doi:10.1177/0960327115573596
更新日期:2016-01-01 00:00:00