Abstract

A review of the literature suggests that an intracellular zine deficiency may be the primary cause of the aging process. Zinc-metalloenzymes play an important role in many aspects of cellular metabolism including DNA replication, repair and transcription. The main enzymes affected by zinc deficiency may be specific for each cell type. Depending on which zinc enzymes are “overvulnerable”, zinc deficiency may result in accumulation of useless (or toxic) materials, malproduction of essential proteins, a neoplastic change or cell death, thus explaining the variability in aging patterns in different cell types. There is no simple and reliable index of zinc status in humans and a therapeutic trial may be needed to establish zinc deficiency. Finding a zinc-compound which can enter the cell and avoid the development of intracellular zinc deficiency may retard the aging process and postpone age-related diseases.

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