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Martins MDPSC, de Carvalho VBL, Rodrigues LARL, Oliveira ASDSS, Arcanjo DDR, dos Santos MAP, Machado JSR, e Martins MDCDC, Rocha MDM. Effects of zinc supplementation on glycemic control and oxidative stress in experimental diabetes: A systematic review. Clin Nutr ESPEN 2022; 51:28-36. [DOI: 10.1016/j.clnesp.2022.08.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 07/02/2022] [Accepted: 08/08/2022] [Indexed: 12/09/2022]
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Nam SM, Kim JW, Kwon HJ, Yoo DY, Jung HY, Kim DW, Hwang IK, Seong JK, Yoon YS. Differential Effects of Low- and High-dose Zinc Supplementation on Synaptic Plasticity and Neurogenesis in the Hippocampus of Control and High-fat Diet-fed Mice. Neurochem Res 2017; 42:3149-3159. [PMID: 28770438 DOI: 10.1007/s11064-017-2353-2] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Revised: 06/13/2017] [Accepted: 07/10/2017] [Indexed: 12/19/2022]
Abstract
In the present study, we investigated the concentration-dependent effect of zinc (Zn) supplementation on the adult hippocampus in a high-fat diet (HFD)-fed obese mouse model. Four-weeks after HFD- and control diet (CD)-feeding, mice were provided with low (15 ppm) or high (60 ppm) doses of Zn in their drinking water for additional 4 more weeks along with their respective diets. Compared to the CD-fed mice, HFD-feeding elicited the reduction of neurogenic markers such as nestin, Ki67, doublecortin (DCX), and 5-bromo-2'-deoxyuridine (BrdU) in the dentate gyrus. Additionally, HFD-feeding reduced the levels of synaptic markers (synaptophysin and N-methyl-D-aspartate receptor) and brain-derived neurotrophic factor (BDNF), while lipid peroxidation was significantly increased in the hippocampus of HFD-fed mice. Against detrimental effects of high-dose Zn, low-dose Zn supplementation in CD-fed mice did not yield any remarkable changes in these parameters. Interestingly, administration of low doses of Zn to HFD-induced obese mice prominently ameliorated HFD-induced changes in neurogenic, synaptic plasticity markers and BDNF levels as well as lipid peroxidation in the hippocampus. In contrast, high-dose Zn supplementation in HFD-fed mice exacerbated the reduction of markers for neurogenesis and synaptic plasticity as well as BDNF levels, but not 4-HNE levels, in the hippocampus. These results suggest that low-dose Zn supplementation in obese mice could reverse the HFD-induced reduction in neurogenic and synaptic marker proteins in the hippocampus by reducing lipid peroxidation and improving BDNF expression, while high-dose Zn supplementation exacerbates the reduction of neurogenesis by affecting synaptic markers and BDNF levels in the hippocampus.
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Affiliation(s)
- Sung Min Nam
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea.,Department of Anatomy, College of Veterinary Medicine, Konkuk University, Seoul, 05030, South Korea
| | - Jong Whi Kim
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea
| | - Hyun Jung Kwon
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung, 25457, South Korea
| | - Dae Young Yoo
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea
| | - Hyo Young Jung
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea
| | - Dae Won Kim
- Department of Biochemistry and Molecular Biology, Research Institute of Oral Sciences, College of Dentistry, Gangneung-Wonju National University, Gangneung, 25457, South Korea
| | - In Koo Hwang
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea.,KMPC (Korea Mouse Phenotyping Center), Seoul National University, Seoul, 08826, South Korea
| | - Je Kyung Seong
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea.,KMPC (Korea Mouse Phenotyping Center), Seoul National University, Seoul, 08826, South Korea
| | - Yeo Sung Yoon
- Department of Anatomy and Cell Biology, College of Veterinary Medicine, and Research Institute for Veterinary Science, Seoul National University, Seoul, 08826, South Korea. .,KMPC (Korea Mouse Phenotyping Center), Seoul National University, Seoul, 08826, South Korea.
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