Zinc: Multidimensional Effects on Living Organisms

Cuajungco, Math P.; Ramírez, María Soledad; Tolmasky, Marcelo E.

doi:10.20944/preprints202101.0178.v1

2021

DOI: 10.20944/preprints202101.0178.v1

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Zinc: Multidimensional Effects on Living Organisms

Math P. Cuajungco¹,

María Soledad Ramírez²,

Marcelo E. Tolmasky³

Abstract: Zinc is a redox-inert trace element that is second only to iron in abundance in biological systems. In cells, zinc is typically buffered and bound to metalloproteins, but may also exist as a labile or chelatable (free ion) form. Zinc plays a critical role in prokaryotes and eukaryotes ranging from structural to catalytic to replication to demise. This review discusses the influential properties of zinc on various mechanisms of bacterial proliferation and synergistic action as anti-microbial element. We also to… Show more

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Cited by 10 publications

References 243 publications

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Effects of Zinc Deficiency in Male Mice on Glucose Metabolism of Male Offspring

Yang

et al. 2022

CHEMICAL & PHARMACEUTICAL BULLETIN

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As an essential metal, zinc is central to insulin biosynthesis and energy metabolism. Zinc can not only maintain the activity of insulin, but also has insulin-like effect. When zinc is sufficient, the body needs less insulin. Zinc can correct abnormal glucose tolerance and even replace insulin to improve glucose metabolism disorder in diabetic rats. However, the effect of paternal zinc deficiency on glucose metabolism of offspring is still unclear. In the present study, sixteen 8-week-old male mice were randomly allocated into low-zinc group and control group (8 mice in each group), which were fed with low zinc and standard diet for 6 weeks, respectively. The mice were mated with female mice fed with standard diet to get the first generation of mice (F1) to explore the effect zinc deficiency on the glucose metabolism of offspring. Glucose tolerance, insulin sensitivity and insulin secretion in mice were determined by oral glucose tolerance test (OGTT), insulin tolerance test (ITT) and glucose stimulated insulin secretion test (GSIS), respectively. Compared with the control group, the fasting blood glucose levels of F1 generation male mice in the low zinc group increased at 15 and 30 min after glucose injection. The blood glucose of F1 generation male mice in the low zinc group of mice decreased at 60, 90, 120, 180, 240 min after insulin injection. Compared with the control group, serum insulin of F1 generation male mice in the low zinc group decreased at 15 min after glucose injection (all p values <0.05). However F1 female mice in the low zinc group did not show abnormal glucose metabolism. Marginal zinc deficiency in male mice can cause abnormal glucose homeostasis in male offspring, but not in female offspring.

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Effects of Zinc Deficiency in Male Mice on Glucose Metabolism of Male Offspring

Yang

et al. 2022

CHEMICAL & PHARMACEUTICAL BULLETIN

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Zinc’s Association with the CmPn/CmP Signaling Network in Breast Cancer Tumorigenesis

et al. 2022

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It is well-known that serum and cellular concentrations of zinc are altered in breast cancer patients. Specifically, there are notable zinc hyper-aggregates in breast tumor cells when compared to normal mammary epithelial cells. However, the mechanisms responsible for zinc accumulation and the consequences of zinc dysregulation are poorly understood. In this review, we detailed cellular zinc regulation/dysregulation under the influence of varying levels of sex steroids and breast cancer tumorigenesis to try to better understand the intricate relationship between these factors based on our current understanding of the CmPn/CmP signaling network. We also made some efforts to propose a relationship between zinc signaling and the CmPn/CmP signaling network.

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Zinc(II) Complexes with Dimethyl 2,2′-Bipyridine-4,5-dicarboxylate: Structure, Antimicrobial Activity and DNA/BSA Binding Study

et al. 2022

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Two zinc(II) complexes with dimethyl 2,2′-bipyridine-4,5-dicarboxylate (py-2py) of the general formula [Zn(py-2py)X2], X = Cl− (1) and Br− (2) were synthesized and characterized by NMR, IR and UV-Vis spectroscopy and single-crystal X-ray diffraction analysis. Complexes 1 and 2 are isostructural and adopt a slightly distorted tetrahedral geometry with values of tetrahedral indices τ4 and τ’4 in the range of 0.80–0.85. The complexes were evaluated for their in vitro antimicrobial activity against two bacterial (Pseudomonas aeruginosa and Staphylococcus aureus) and two fungal strains (Candida albicans and Candida parapsilosis), while their cytotoxicity was tested on the normal human lung fibroblast cell line (MRC-5) and the model organism Caenorhabditis elegans. Complex 1 showed moderate activity against both Candida strains. However, this complex was twofold more cytotoxic compared to complex 2. The complexes tested had no effect on the survival rate of C. elegans. Complex 2 showed the ability to inhibit filamentation of C. albicans, while complex 1 was more effective than complex 2 in inhibiting biofilm formation. The interactions of complexes 1 and 2 with calf thymus DNA (ct-DNA) and bovine serum albumin (BSA) were studied to evaluate their binding affinity toward these biomolecules.

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Zinc: Multidimensional Effects on Living Organisms

Cited by 10 publications

References 243 publications

Effects of Zinc Deficiency in Male Mice on Glucose Metabolism of Male Offspring

Effects of Zinc Deficiency in Male Mice on Glucose Metabolism of Male Offspring

Zinc’s Association with the CmPn/CmP Signaling Network in Breast Cancer Tumorigenesis

Zinc(II) Complexes with Dimethyl 2,2′-Bipyridine-4,5-dicarboxylate: Structure, Antimicrobial Activity and DNA/BSA Binding Study

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