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J Trace Elem Med Biol ; 61: 126554, 2020 May 20.
Artículo en Inglés | MEDLINE | ID: mdl-32480053

RESUMEN

BACKGROUND: Manganese (Mn) is a metal ubiquitously present in nature and essential for many living organisms. As a trace element, it is required in small amounts for the proper functioning of several important enzymes, and reports of Mn deficiency are indeed rare. METHODS: This mini-review will cover aspects of Mn toxicokinetics and its impact on brain neurotransmission, as well as its Janus-faced effects on humans and other animal's health. RESULTS: The estimated safe upper limit of intracellular Mn for physiological function is in anarrow range of 20-53 µM.Therefore, intake of higher levels of Mn and the outcomes, especially to the nervous system, have been well documented. CONCLUSION: The metal affects mostly the brain by accumulating in specific areas, altering cognitive functions and locomotion, thus severely impacting the health of the exposed organisms.

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