BACKGROUND Manganese is an essential element, but excessive manganese exposure has neurotoxic effects. OBJECTIVE To examine blood manganese levels in the general population with respect to sex, age, race/ethnicity, pregnancy and menauposal status, as well as levels of trace elements in blood. METHODS We used data from the National Health and Nutrition Examination Survey, a national survey o...

The essential trace elements zinc and manganese have been noted as factors in brain disease since the Twenties. The combined use of zinc and manganese in schizophrenia is based on: 1) Increased urinary excretion of copper when both zinc and manganese are given orally 2) Zinc alone causes a decrease in blood manganese and 3) The double deficiency of zinc and manganese frequently is found in pati...

The structural and electrical properties of polyaniline-cobalt sulphate nanocomposite prepared by chemical method.Polyaniline-cobalt sulphate nanocomposites were synthesized by the cobalt sulphate and ammonium persulphate and aniline.This paper reports on chemical technique using for synthesis of cobalt nanoparticles in the composite bridge is aniline. Electrical conductivity of polyaniline wit...

The structural and electrical properties of polyaniline-cobalt sulphate nanocomposite prepared by chemical method.Polyaniline-cobalt sulphate nanocomposites were synthesized by the cobalt sulphate and ammonium persulphate and aniline.This paper reports on chemical technique using for synthesis of cobalt nanoparticles in the composite bridge is aniline. Electrical conductivity of polyaniline wit...

1. The metabolism of inorganic [(35)S]sulphate (Na(2) (35)SO(4)) was studied in the isolated perfused rat liver at three initial concentrations of inorganic sulphate in the perfusion medium (0, 0.65 and 1.30mm), in relation to sulphation and glucuronidation of a phenolic drug, harmol (7-hydroxy-1-methyl-9H-pyrido[3,4-b]indole). 2. [(35)S]Sulphate rapidly equilibrated with endogenous sulphate in...

this study was conducted to evaluate the relative bioavailability value of mn proteinate and mn oxide in broiler chicks. a total of 432 day-old cobb 500 commercial male broiler chicks were randomly distributed into nine treatments with eight replicate pens of six chicks each. in a completely randomized design experiment with a 2×4 factorial arrangement of two manganese sources (proteinate and r...

There is considerable evidence that the prion protein binds copper. However, there have also been suggestions that prion protein (PrP) binds manganese. We used isothermal titration calorimetry to identify the manganese binding sites in wild-type mouse PrP. The protein showed two manganese binding sites with affinities that would bind manganese at concentrations of 63 and 200 mum at pH 5.5. This...

The metabolic fate of potassium dodecyl [(35)S]sulphate was studied in rats. Intraperitoneal and oral administration of the ester into free-ranging animals were followed by the excretion of the bulk of the radioactivity in the urine within 12hr., approximately 17% being eliminated as inorganic [(35)S]sulphate. Similar results were obtained in experiments in which potassium dodecyl [(35)S]sulpha...

Chemical and spectroscopic studies have shown that in agricultural soils most of the soil sulphur (>95%) is present as sulphate esters or as carbon-bonded sulphur (sulphonates or amino acid sulphur), rather than inorganic sulphate. Plant sulphur nutrition depends primarily on the uptake of inorganic sulphate. However, recent research has demonstrated that the sulphate ester and sulphonate-pools...