نتایج جستجو برای: urine organic acids range
تعداد نتایج: 1147173 فیلتر نتایج به سال:
We assessed organophosphorus (OP) pesticide exposure from diet by biological monitoring among Seattle, Washington, preschool children. Parents kept food diaries for 3 days before urine collection, and they distinguished organic and conventional foods based on label information. Children were then classified as having consumed either organic or conventional diets based on analysis of the diary d...
Urine contains variable amounts of organic matter derived from cell degradation. The cellular detritus is composed by membranous and cytosolic glycoproteins, etc. The aim of this paper was to study the role of organic matter in calcium oxalate crystal development and to evaluate the action of some crystallization inhibitors on this process. Crystallization studies were carried out on urine in s...
THE LOSS OF MERCURY due to volatilization and incomplete removal of oxidizing agents which destroy dithizone are among the major problems in determining mercury in urine. This paper describes a method by which these difficulties are reduced to a minimum. In actual use, this method has been found efficient in screening large numbers of workers exposed to a mercury hazard. Most methods require a ...
Abstract The structure and composition of short-range ordered aluminosilicates (SROAS) may control their affinity for organic acids with potential effects on soil matter stabilization. Adsorption mechanisms model were studied to resolve the effect Si incorporation. oxalic, salicylic, octanoic acid Al-rich (Al:Si = 3.7) Si-rich 1.4) SROAS was quantified by analyses dissolved carbon using catalyt...
BACKGROUND Hereditary tyrosinemia type 1 (HT1; MIM 276700) is caused by mutations in the fumarylaceto-acetate hydrolase (FAH) gene, and is the most severe disorder associated with the tyrosine catabolic pathway. HT1 is a very rare disorder and no genetically confirmed case of HT1 in Korea has yet been reported. In this study, we present a Korean neonate with clinical and biochemical features of...
Metabolomics, a 'budding' discipline, may accurately reflect a specific phenotype which is sensitive to genetic and epigenetic interactions. This rapidly evolving field in science has been proposed as a tool for the evaluation of the effects of epigenetic factors, such as nutrition, environment, drug and lifestyle on phenotype. Urine, being sterile, is easy to obtain and as it contains metaboli...
A procedure for estimating 24 hour urine output in infants using disposable nappies has been validated. In addition, it has been shown experimentally that the urinary concentrations, and hence 24 hour outputs of a range of constituents (sodium, potassium, nitrogen, creatinine, urea, amino acids, and deuterium oxide), may be measured accurately using samples of urine obtained from nappies. It is...
BACKGROUND The acid-ash hypothesis, the alkaline diet, and related products are marketed to the general public. Websites, lay literature, and direct mail marketing encourage people to measure their urine pH to assess their health status and their risk of osteoporosis.The objectives of this study were to determine whether 1) low urine pH, or 2) acid excretion in urine [sulfate + chloride + 1.8x ...
A male neonate was born to a 35-year-old mother at an outside hospital at 39 1/7 weeks gestation via emergency cesarean section due to decreased fetal movements. The infant had respiratory distress secondary to meconium aspiration and was noted to have a large, distended abdomen at birth. Subsequent ultrasound confirmed hepatosplenomegaly with no evidence of liver mass or ascites. By report, al...
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