One of the most shocking accidents that have impacted world recently was devastation Fukushima-Daiichi nuclear power plant following a major earthquake followed by strong 15-meter Tsunami wave affecting east coast region. adverse consequences this catastrophic event is release and dissemination radioactive materials in surrounding environment. Tellurium-129m one comprehensively traced fission p...

Exposure of bovine neutrophils to Pasteurella haemolytica leukotoxin (LKT) stimulates the production of leukotriene B4 (LTB4), which is believed to be an important chemotactic agent in the development of acute fibrinopurulent pneumonic infection in cattle. The involvement of phospholipase A2 (PLA2) in LKT-induced synthesis of LTB4 was studied by using bovine neutrophils labeled with 3H-arachido...

ase is also described. Radioactivity in plasma, brain, and muscle was determined after administration of 6-mercap topurine, 6-mercaptopurine ribonucleoside, 6-thioguanine, or 6-thioguanine ribonucleoside in mice or rats. At the times chosen for tissue sampling, there were no major differences in brain uptake between the base and ribonu cleoside pairs. Muscle radioactivity ranged from 3 to 7 tim...

The aim of the study is to present the results of determination of radioactivity of artificial 137Cs and natural 40K and certain heavy metals in soil samples collected from the eastern part of the Main Ridge of Carpathians, including the Beskid Niski Mts and the Bieszczady Mts. The evaluation of level of radionuclides was based on the bulk density analysis of the soil. A valuable finding of the...

L-683,845 is an orally active inhibitor of human leukocyte elastase. Its disposition was studied in rats and rhesus monkeys after dosing with a 3H- or 14C-labeled compound intravenously at 5 mg/kg and orally at 10 mg/kg. L-683,845 exhibited different pharmacokinetics in these two species. In rats, L-683,845 was well-absorbed after oral dosing, with a maximum concentration of 6 microg/ml at 2 hr...

background: the natural radioactivity level and the radon concentration of soil were measured at four important geothermal area located in dikili geothermal region, turkey. materials and methods: the natural radionuclide content of soil samples were measured by nai(tl) gamma spectrometer system and the soil radon concentration were determined using kodak-pethe lr-115 type ii solid state nuclear...

BACKGROUND Cerebral blood flow (CBF) quantitation using technetium-99m hexamethylpropyleneamine oxime (99mTc-HMPAO) generally requires assessment of input function by arterial blood sampling, which would be invasive for small animals. We therefore performed chest dynamic planar imaging, instead of arterial blood sampling, to estimate the input function and establish noninvasive quantitation met...

I performed an experiment on the relationship between 14C-Bleomycin and Glutathione in 'vivo; especially on the relationship of radioactivity and antibacterial activity, and the results will be reported here. 1) When Bleomycin and Glutathione were administered simultaneously and animals were killed after 30 minutes, decrease in Bleomycin concentration in every organ was observed. The decrease r...

Uniformly labelled radioactive glucose was fed to Chlorella cells in the presence of non-radio­ active carbon dioxide. The concentration of carbon dioxide was varied and the distribution of radio­ activity determined in the light. At low concentrations of carbon dioxide much of the radioactivity appeared in glycollate or derivatives thereform. By contrast, at higher concentrations of carbon dio...

The radiotracer technetium-99m methoxyisobutyl isonitrile ((99m)Tc-MIBI) has been widely used for myocardial blood flow imaging. We investigated the genotoxicity of (99m)Tc-MIBI in cultured human lymphocytes at the same concentration used in patients. Radioactivity doses were determined in whole blood at 5 min post-injection of 20 mCi (99m)Tc-MIBI in patients. Subsequently, whole blood of human...