Case presentation: The case is about a 1 year and 9 month old infant, child of consanguineous parents, born at term, Apgar 9/10, with respiratory distress, vomiting hypoactivity starting 48 hours life, laboratory tests were performed that showed severe metabolic acidosis, in addition to not being suggestive infection blood culture without microorganisms growth. At the time, measurement organic ...

Leaching properties of Pb, Cd, Zn, Cu at pH of 2-6 using different inorganic acids (hydrochloric acid, sulfuric acid, nitric acid) and organic acids (acetic acids, citric acid, malic acid, succinic acid) aiming at polluted sediment at downstream of a non-ferrous metal smelting enterprise is discussed. Results showed that leaching concentrations of 4 metals decreased with increasing pH. Among al...

MUDGE. viously described (49). In about half, the exogenous creatinine clearance was used as a measure of glomerular filtration rate (GFR); in the remainder, the inulin clearance was employed. To obtain low urinary pH, pretreatment was with NH&l or HCl, and an intravenous infusion of NaCl (. I 50 M) in 5 % mannitol was used to elevate the urine flow rate. To achieve alkaline urine, the infusion...

BACKGROUND Urinary organic acids are water-soluble intermediates and end products of the metabolism of amino acids, carbohydrates, lipids, and a number of other metabolic processes. In the hereditary diseases known as organic acidurias, an enzyme or co-factor defect in a metabolic pathway leads to the accumulation and increased excretion of one or more of these acidic metabolites. Gas chromatog...

From June 1998 to May 2007, 9566 urine samples were collected from patients with psychomotor deficits, seizures, vomiting and unconsciousness in Peking University First Hospital. Their urine organic acids profiles were analysed using gas chromatography - mass spectrometry (GCMS), GCMS solution and Inborn Errors of Metabolism Screening System software. In all patients, blood acylcarnitines were ...

Although it is believed that organic aerosols play a key role in cloud nucleation and make an Ž . important contribution to the cloud condensation nuclei CCN population, their specific species Ž remain poorly characterized. This paper reviews the current knowledge of organic acids mainly . formic, acetic, pyruvic and oxalic acids . Without specification, organic acids in this paper refer to the...

The enzymatic systems which effect the biological degradation of the sulfur-containing amino acids of the protein molecule, cystine and methionine, are not well understood. Knowledge of the intermediary stages in the metabolism of these amino acids is also lacking. When either of these amino acids is administered orally or parenterally in moderate amounts to the more common laboratory animals (...