Methyl groups are found in numerous biogenic and synthetic materials including geologically preserved such as wood. The carbon hydrogen isotope compositions of methyl used tracers biogeochemical cycles, paleothermometers, to determine the isotopic composition ancient rain. Here we present analyses resolved 13C–D (13CH2D) D–D (12CHD2) clumped new variables for study past. We first chemical metho...

In the present short communication we considered the main publications focused on trigger prostate-specific antigen (PSA) and PSA kinetics that systematically compared 18F to 11C-choline PET/CT in order to establish the optimal time to perform choline PET/CT in relation to the trigger values and velocity, as well as doubling time of PSA serum levels.

BACKGROUND Over the last decade, an increasing number of studies have been published on the use of amyloid-β (Aβ) PET imaging with different (18)F-radiopharmaceuticals for clinical characterization of Alzheimer's disease (AD) in different stages. However, distinct study cohorts and different quantification techniques allow only for an indirect comparison between the different tracers. Thus, the...

Correspondence Dr. Vera Schreiter Radiology, Charité Universitätsmedizin Berlin Augustenburger Platz 1 13353 Berlin Germany Tel.: ++ 49/30/4 506571 65 Fax: ++ 49/30/5279 94 [email protected] Introduction ▼ The use of gallium-68 (Ga-68)-labeled prostate-specific membrane antigen (PSMA) ligands for the diagnosis of prostate cancer is a promising innovation for the metabolic imaging of pro...

There has been much interest in the health effects of dietary fat, but few studies have comprehensively compared the acute metabolic fate of specific fatty acids in vivo. We hypothesized that different classes of fatty acids would be variably partitioned in metabolic pathways and that this would become evident over 24 h. We traced the fate of fatty acids using equal amounts of [U-(13)C]linoleat...

Prostate cancer is the second most common male malignancy worldwide with a wide spectrum of biological behaviour ranging from fairly indolent disease to highly aggressive metastatic castrate resistant tumours. In the past decade there have been advances in therapies for treating advanced and recurrent prostate cancer and improved diagnostic/prognostic tools are required to refine the therapeuti...