نتایج جستجو برای: methylparaben
تعداد نتایج: 207 فیلتر نتایج به سال:
Abstract Background and Aims Exposure to consumer chemicals has been associated with chronic kidney disease (CKD) among humans, but their associations estimated glomerular filtration rate (eGFR) are inconsistent. We aimed assess the relationship between paraben exposure renal function including serum level of blood urea nitrogen (BUN), urinary levels microalbumin, albumin, protein, creatinine f...
OBJECTIVE We previously demonstrated that exposure to polyvinyl chloride plastic medical devices containing di(2-ethylhexyl) phthalate (DEHP) was associated with higher urinary concentrations of several DEHP metabolites in 54 premature infants in two neonatal intensive care units than in the general population. For 42 of these infants, we evaluated urinary concentrations of several phenols, inc...
Parabens are added to personal care products as antimicrobial preservatives. They have been suggested endocrine disrupting abilities. Prenatal exposure parabens has associated with reproductive endpoints including reduced male anogenital distance (AGD, from anus genitals), which is sensitive prenatal anti-androgenic exposure. To study the associations between maternal paraben concentrations in ...
The new gene prbA encodes an esterase responsible for the hydrolysis of the ester bond of parabens in Enterobacter cloacae strain EM. This gene is located on the chromosome of strain EM and was cloned by several PCR approaches. The prbA gene codes for an immature protein of 533 amino acids, the first 31 of which represent a proposed signal peptide yielding a mature protein of a putative molecul...
Inactive Ingredients Propranolol Hydrochloride Oral Solution is available for oral administration containing either 20 mg per 5 mL or 40 mg per 5 mL of propranolol hydrochloride USP. The oral solution contains the following inactive ingredients: citric acid anhydrous, crème de menthe flavor, disodium edetate, methyl paraben, propylene glycol, propylparaben, purified water, saccharin sodium, sor...
Parabens are alkyl esters of p-hydroxybenzoic acid and are used as antimicrobial preservatives in a range of consumer products, including cosmetics, pharmaceuticals, and foodstuffs. Despite their widespread use, prior to this study, paraben concentrations in foodstuffs from China and human dietary exposure to these chemicals have been unknown. In this study, concentrations of six parabens were ...
BACKGROUND Simultaneous or sequential exposure to multiple environmental stressors can affect chemical toxicity. Cumulative risk assessments consider multiple stressors but it is impractical to test every chemical combination to which people are exposed. New methods are needed to prioritize chemical combinations based on their prevalence and possible health impacts. OBJECTIVES We introduce an...
BACKGROUND Exposures to environmental phenols and parabens may be harmful, especially in utero. Prior studies have demonstrated high within-person variability of urinary concentrations across pregnancy. OBJECTIVES We sought to measure phenol and paraben biomarker concentrations for the Norwegian Mother and Child Cohort (MoBa) study, assess within-person variability, and investigate any possib...
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