4.7 Review

Impact of Zinc Transport Mechanisms on Embryonic and Brain Development

Journal

NUTRIENTS
Volume 14, Issue 12, Pages -

Publisher

MDPI
DOI: 10.3390/nu14122526

Keywords

zinc; zinc deficiency; development; brain; fetal programming; TRPM7

Funding

  1. National Heart, Lung, and Blood Institute, National Institutes of Health [R01HL147350]

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The trace element zinc plays a crucial role in regulating enzyme activity and metabolic processes in eukaryotic cells. Zinc deficiency has significant effects on development and has been linked to neurological disorders in the brain. This review highlights the importance of zinc during development, discusses the epidemiology and symptoms of zinc deficiency in humans, and provides an overview of different forms of zinc deficiency and the zinc transporters that control zinc balance.
The trace element zinc (Zn) binds to over ten percent of proteins in eukaryotic cells. Zn flexible chemistry allows it to regulate the activity of hundreds of enzymes and influence scores of metabolic processes in cells throughout the body. Deficiency of Zn in humans has a profound effect on development and in adults later in life, particularly in the brain, where Zn deficiency is linked to several neurological disorders. In this review, we will summarize the importance of Zn during development through a description of the outcomes of both genetic and early dietary Zn deficiency, focusing on the pathological consequences on the whole body and brain. The epidemiology and the symptomology of Zn deficiency in humans will be described, including the most studied inherited Zn deficiency disease, Acrodermatitis enteropathica. In addition, we will give an overview of the different forms and animal models of Zn deficiency, as well as the 24 Zn transporters, distributed into two families: the ZIPs and the ZnTs, which control the balance of Zn throughout the body. Lastly, we will describe the TRPM7 ion channel, which was recently shown to contribute to intestinal Zn absorption and has its own significant impact on early embryonic development.

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