Interference of Manganese on neuroendocrinal system in exposed workers

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Abstract
The neurotoxic effects of Manganese (Mn) are well known, and are usually caused by high occupational exposure over long periods of time. The effects caused by low doses of this metal have been poorly evaluated. For this reason, we decided to evaluate neuroendocrinal tests in a group of 14 male workers employed in a ferrousmanganese foundry (exposed to Mn air concentrations within the TLV-TWA) and in 14 male control subjects, by analyzing FSH, LH, prolactin, and cortisol. The urinary Mn, prolactin, and cortisol levels were significantly higher in the worker’s group. The preliminary results of this research seem to show that for exposure below the TLV, Mn can somehow interfere with the neuroendocrine system. In order to confirm the existence of these effects and to verify their possible correlation with the dopaminergic control system, further studies are necessary.

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