Molecules, Vol. 24, Pages 3790: Levels of the Thiocyanate in the Saliva of Tobacco Smokers in Comparison to e-Cigarette Smokers and Nonsmokers Measured by HPLC on a Phosphatidylcholine Column

Molecules, Vol. 24, Pages 3790: Levels of the Thiocyanate in the Saliva of Tobacco Smokers in Comparison to e-Cigarette Smokers and Nonsmokers Measured by HPLC on a Phosphatidylcholine Column Molecules doi: 10.3390/molecules24203790 Authors: Flieger Kawka Tatarczak-Michalewska The aim of the study was to estimate the thiocyanate levels in saliva of cigarette smokers in comparison to e-cigarette smokers and nonsmokers. To improve our understanding of the influence of smoking on the oral level of thiocyanate, we conducted an assessment of human saliva, in 24 individuals (eight tobacco smokers, eight e-cigarette smokers, and eight nonsmokers). High-Performance Liquid Chromatography with ultraviolet detection (HPLC-UV) using a unique phosphatidylcholine column was applied in this assay. Thiocyanate ion was detected directly by its absorbance at 210 nm. The method presents a new application of the IAM (Immobilized Artificial Membrane) column for quantification of inorganic anions. The whole process meets the criteria of green chemistry because it was carried out without the use of organic solvents. For compensating matrix effects, an eight-point standard addition protocol was used to quantify the thiocyanate level in saliva samples. The calibration graphs were linear in the range of 5–100 mg L−1 with a correlation coefficient higher than 0.99. The thiocyanate concentrations in the saliva of tobacco smokers, e-cigarette smokers, and nonsmokers wer...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research

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Publication date: Available online 10 November 2019Source: Urology Case ReportsAuthor(s): Jonathan Kopel, Pranav Sharma, Irfan WarriachAbstractSolitary fibrous tumors (SFTs) are rare mesenchymal neoplasms found areas lining the pleura. First reported in 1931, there have been a total of 55 cases of SFTs of the kidney worldwide. In most cases, SFTs presents with hematuria, flank pain, and enlarging abdominal mass. In this case, we report a case of a patient who underwent a radical nephrectomy to remove an SFTs of the kidney with compression of the vena cava. This case further expands upon the importance of diagnosing and ass...
Source: Urology Case Reports - Category: Urology & Nephrology Source Type: research
AbstractHyperlipidemia and oxidative stress are indispensable features of chronic kidney disease (CKD) that favor the development of atherogenic plaques and cardiovascular disease (CVD). A number of vasoactive mediators including proprotein convertase subtilisin –kexin type 9 (PCSK9), endothelin-1, nitric oxide, and angiotensin II have fundamental roles in the pathophysiology of atherosclerotic events; moreover, their levels are affected by dyslipidemia and oxidative stress due to renal dysfunction. Therefore, therapeutic measures aimed at correcting dysl ipidemia and alleviating oxidative stress could potentially pr...
Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
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Source: International Urology and Nephrology - Category: Urology & Nephrology Source Type: research
Marc Rodwin of Suffolk University Law School reports that the French health system controls drug prices by determining maximum prices based on added therapeutic value and external reference pricing; employing negotiation to set prices and limit price increases; and capping total spending to a global budget.        
Source: The Commonwealth Fund: Publications - Category: International Medicine & Public Health Authors: Source Type: research
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