α-Manganese Phases containing Technetium-99

Untangling the Manganese-α-Synuclein Web

Neurodegenerative diseases affect a significant portion of the aging population. Several lines of evidence suggest a positive association between environmental exposures, which are common and cumulative in a lifetime, and development of neurodegenerative diseases. Environmental or occupational exposure to manganese (Mn) has been implicated in neurodegeneration due to its ability to induce mitoc...

Technetium-99 m in the diagnosis of thyrotoxicosis.

The thyroid uptake at 20 minutes of intravenously administered Technetium-99(m) ((99m)Tc) was measured in 117 patients with a standard scintillation counter. Patients were divided into three groups on the basis of clinical assessment, four-hour (131)I uptake, triiodothyronine (T-3) resin uptake, and protein-bound iodine measurements.In 31 patients with no evidence of thyroid disease the mean (9...

Fallout Technetium - 99 Distribution and Behavior in Japanese Soils

Environmental amounts of Tc have been accumulating because of its long half-life of 2.1 × 10 y. This pure β-emitter (Emax= 0.29 MeV) is produced in the fission of U or Pu with a relatively high fission yield of ca. 6%, and it has been released to the environment through nuclear weapons tests and nuclear industries. The quantity of Tc produced by atmospheric nuclear weapon explosions was estimat...

Ottawa Heart Institute producing alternative to technetium-99 isotopes.

Global Fallout Technetium-99 Levels in Japanese Paddy Soils

Determination of global fallout Tc in Japanese paddy field soil sample was carried out using a simple and rapid separation method by using a TEVA resin and determination by ICP-MS. The ranges of Tc concentrations are 6 110 mBq kg dry. The Tc values obtained were usually higher than the expected value of 6 mBq kg dry which was estimated from uniform Tc distribution on the surface of the northern...