نتایج جستجو برای: urinary metabolites
تعداد نتایج: 162955 فیلتر نتایج به سال:
Variability and Predictors of Urinary Concentrations of Phthalate Metabolites during Early Childhood
The variability and predictors of urinary concentrations of phthalate metabolites in preschool-aged children have not been thoroughly examined. Additionally, the impact of temporal changes in the use and restriction of phthalates in children's products has not been assessed. Our objective was to identify demographic, behavioral, and temporal predictors of urinary phthalate metabolite concentrat...
(R)-(+)-Menthofuran is a metabolite of (R)-(+)-pulegone, the chief constituent of pennyroyal oil. Menthofuran has been shown to account for a significant percentage of pulegone toxicity through further metabolism to a reactive intermediate, an enonal (2-Z-(2'-keto-4'-methylcyclohexylidene)propanal). Hydration of the enonal followed by a 1,4-dehydration and rearrangement gives rise to diastereom...
Endemic chinchilla (Chinchilla spp.) populations are nearly extinct in the wild (South America). In captive animals (Chinchilla lanigera and C. brevicaudata), reproduction is characterized by poor fertility and limited by seasonal breeding patterns. Techniques applied for studying male reproductive physiology in these species are often invasive and stressful (i.e. repeated blood sampling for se...
OBJECTIVES Animal inhalation studies and theoretical models suggest that the pattern of formation of benzene metabolites changes as exposure to benzene increases. To determine if this occurs in humans, benzene metabolites in urine samples collected as part of a cross sectional study of occupationally exposed workers in Shanghai, China were measured. METHODS With organic vapour monitoring badg...
background: for its toxicity, benzene exposure is one of the main health concerns for high risk occupations like gasoline station workers. however, there is little knowledge about the effect of benzene metabolites on hematological parameters. objective: to evaluate the correlation between the urinary level of trans, trans-muconic acid (t, t-ma), a benzene metabolite, and some hematological para...
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