نتایج جستجو برای: dimethyl phthalate
تعداد نتایج: 30133 فیلتر نتایج به سال:
We assessed the urinary concentration of 16 phthalate metabolites in 57 women with and without uterine leiomyoma (n = 30 and 27; respectively) to determine the association between phthalate exposure and uterine leiomyoma. To evaluate exposure to di-(2-ethylhexyl) phthalate (DEHP); we calculated the molar sum of DEHP metabolites; ∑3-DEHP (combining mono-(2-ethylhexyl) phthalate (MEHP); mono-(2-e...
We present a case of hypersensitivity pneumonitis in a 46-year-old female working at a yacht manufacturing company. She reported a 2-month history of progressive dyspnea, chest tightness, and daytime, nocturnal, and exertional cough in temporal relationship to work where she was exposed to chemicals involved in the manufacture of yachts. Treatment with systemic antibiotic therapy, inhaled bronc...
In the title complex, [Zn(2)(C(10)H(7)NO(6))(2)(C(5)H(5)N)(2)](n), the repeat unit is a centrosymmetic tetra-carboxyl-ato-O,O'-bridged dimer in which each Zn(II) atom is five-coordinated by four O atoms from different dianionic 4,6-dimethyl-5-nitro-iso-phthalate ligands [Zn-O = 2.0283 (18)-2.0540 (19) Å] and one N atom from a pyridine mol-ecule [Zn-N = 2.030 (2) Å] in the axial site of a slight...
A routine method which is simple, quick and precise has been set up and validated for phthalate analysis in environmental samples (tomato plants and sewage sludges). Six phthalates have been studied simultaneously: dimethylphthalate, diethylphthalate, di-n-butylphthalate, n-butylbenzylphthalate, di-2-ethyl-hexyl phthalate (DEHP) and di-n-octylphthalate. Optimization of sample, solvent extractio...
BACKGROUND Previous studies have shown that women have higher urinary concentrations of several phthalate metabolites than do men, possibly because of a higher use of personal care products. Few studies have evaluated the association between phthalate metabolites, diabetes, and diabetes-related risk factors among women. OBJECTIVE We explored the association between urinary phthalate metabolit...
UNLABELLED Phthalates adversely affect the male reproductive system in animals. We investigated whether phthalate monoester contamination of human breast milk had any influence on the postnatal surge of reproductive hormones in newborn boys as a sign of testicular dysgenesis. DESIGN We obtained biologic samples from a prospective Danish-Finnish cohort study on cryptorchidism from 1997 to 2001...
Solar Water Disinfection (SODIS) is a simple process used in developing countries to improve the quality of bacteria-contaminated drinking water. A previous study found that phthalate, an aromatic compound released by polyethylene terephthalate (PET) bottles upon UV-A irradiation, enhanced the germicidal activity of SODIS. In the current study, two possible mechanisms behind this observation we...
Two distinct regions of DNA encode the enzymes needed for phthalate degradation by Burkholderia cepacia DBO1. A gene coding for an enzyme (quinolinate phosphoribosyl transferase) involved in the biosynthesis of NAD+ was identified between these two regions by sequence analysis and functional assays. Southern hybridization experiments indicate that DBO1 and other phthalate-degrading B. cepacia s...
BACKGROUND Phthalates are widely used chemicals, and human exposure is extensive. Recent studies have indicated that phthalates may have thyroid-disrupting properties. OBJECTIVE We aimed to assess concentrations of phthalate metabolites in urine samples from Danish children and to investigate the associations with thyroid function, insulin-like growth factor I (IGF-I), and growth. METHODS I...
BACKGROUND Phthalate exposure occurs readily in the environment and has been associated with an array of health end points, including adverse birth outcomes. Some of these may be mediated by oxidative stress, a proposed mechanism for phthalate action. OBJECTIVES In the present study, we explored the associations between phthalate metabolites and biomarkers of oxidative stress measured in urin...
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