Surfactant predominantly comprises phosphatidylcholine (PC) species, together with phosphatidylglycerols, phosphatidylinositols, neutral lipids, and surfactant proteins-A to -D. Together, dipalmitoyl-PC (PC16:0/16:0), palmitoyl-myristoyl-PC (PC16:0/14:0), and palmitoyl-palmitoleoyl-PC (PC16:0/16:1) make up 75-80% of mammalian surfactant PC, the proportions of which vary during development and i...

OBJECTIVES To compare the sensitivity and specificity of C[14] urea breath test with histopathological findings in biopsies obtained through endoscopy. METHODS In this cross-sectional study, conducted at the Medical Faculty Ankara University, Ankara, Turkey between January and October 2009, 100 patients aged 65 and above who fulfilled the criteria for inclusion were enrolled. Oesophago-gastro...

Some investigators tried to rebut the C14 dating by pointing out the problems with this method. All biological materials do not absorb C14 at the same rate and there was no absolute proof that the amount of C14 in the atmosphere had remained invariant before the industrial revolution. Ogden (1) pointed out these discrepancies in 1977, but since that time calibration methods have been developed ...

Kelly and associates (8, 10, 20) have demon strated that phosphorus-32 is incorporated to a greater extent into the liver, kidney, and spleen deoxyribonucleic acid in mice bearing mammary carcinomas than into those of normal control mice. Comparable results were also obtained by those investigators (19) when tumor-bearing mice were given injections of either formate-carbon-14 (C14) or glycine-2...

OBJECTIVE The role of mitochondrial function in the complex pathogenesis of type 2 diabetes is not yet completely understood. Therefore, the aim of this study was to investigate serum concentrations of short-, medium- and long-chain acylcarnitines as markers of mitochondrial function in volunteers with normal, impaired or diabetic glucose control. METHODS Based on a 75 g oral glucose toleranc...