نتایج جستجو برای: thiocyanate level
تعداد نتایج: 1082827 فیلتر نتایج به سال:
In a previous paper (1) we reported data, based upon the use of radiosulfur, showing that in the rat the affinity of the whole thyroid for thiocyanate ion is slight but is significantly greater than in other tissues. Baumann and Metzger (2), using different analytical procedures, reported a similar observation. The uptake of thiocyanate ion by the thyroid is of especial interest because of the ...
Carboxyhaemoglobin and plasma thiocyanate concentrations were measured in 79 non-smokers and 360 cigarette smokers. The mean levels were 0.73% and 7.09% carboxyhaemoglobin and 40 . 2 and 133 . 8 mumol thiocyanate/1 plasma respectively. With 1 . 6% carboxyhaemoglobin and 73 . 0 mumol thiocyanate/1 plasma as critical values the concentrations of carboxyhaemoglobin in 96.6% of subjects and of thio...
OBJECTIVE Thyroid hormone, requiring adequate maternal iodine intake, is critical for neurodevelopment in utero. Perchlorate and, less so, thiocyanate decrease uptake of iodine into the thyroid gland by competitively inhibiting the sodium/iodide symporter (NIS). It remains unclear whether environmental perchlorate exposure adversely affects thyroid function in first-trimester pregnant women. ...
As a part of our project aimed at developing new safe chemotherapeutic and chemoprophylactic agents against tropical diseases, fluorine-containing drugs structurally related to 4-phenoxyphenoxyethyl thiocyanate (1) were designed, synthesized, and evaluated as antiproliferative agents against Trypanosoma cruzi, the parasite responsible of American trypanosomiasis (Chagas' disease), and Toxoplasm...
The neutrophil enzyme myeloperoxidase uses H2O2 to oxidize chloride, bromide, iodide and thiocyanate to their respective hypohalous acids. Chloride is considered to be the physiological substrate. However, a detailed kinetic study of its substrate preference has not been undertaken. Our aim was to establish whether myeloperoxidase oxidizes thiocyanate in the presence of chloride at physiologica...
As a part of our project directed at the search of new chemotherapeutic agents against American trypanosomiasis (Chagas' disease), several drugs possessing the 4-phenoxyphenoxy skeleton and other closely related structures employing the thiocyanate moiety as polar end group were designed, synthesized, and evaluated as antiproliferative agents against Trypanosoma cruzi, the parasite responsible ...
l:lle or&n and fate of thiocyanate ion in the body have been of interest for more than a century. It has been generally accepted that the ion does not readily permeate normal cell membranes; t.hc distribution of thiocyanate ion in the body is the basis of a method for determination of extracellular fluid volume (1). Despite its assumed extracellular localization, thiocyanate ion is physiologica...
A kinetic spectrophotometric method for rapid measurement of thiocyanate in serum, urine and sewage water with no need for removed of interfering substances in described. The method is based on the inhibitory effect of thiocyanate on the oxidation of pyrogallol red by bromated and nitrite which is monitored at 467 nm. The variables affecting the rate of the reaction were investigated and th...
We describe a method for rapid and specific measurement of thiocyanate in serum or urine. We separate thiocyanate from interfering compounds by adsorbing it on an anion-exchange resin that has special affinity for thiocyanate, then eluting with sodium perchlorate. The eluted thiocyanate is quantified by a modified König reaction, sodium hypochlorite being used as the chlorinating reagent. Analy...
The main objective of this study was to assess the iodine nutritional status among school children (6-12 yrs) of Sundarban delta in North 24-Parganas district of West Bengal in eastern India. A total of 2050 children were clinically examined for goiter and 240 urine samples were analyzed for iodine and thiocyanate respectively; iodine content in 48 water samples and 210 salt samples were also m...
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