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Kanon AP, Giezenaar C, Roy NC, Jayawardana IA, Lomiwes D, Montoya CA, McNabb WC, Henare SJ. Effects of Green and Gold Kiwifruit Varieties on Antioxidant Neuroprotective Potential in Pigs as a Model for Human Adults. Nutrients 2024; 16:1097. [PMID: 38674790 PMCID: PMC11055029 DOI: 10.3390/nu16081097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2024] [Revised: 04/04/2024] [Accepted: 04/06/2024] [Indexed: 04/28/2024] Open
Abstract
Kiwifruit (KF) has shown neuroprotective potential in cell-based and rodent models by augmenting the capacity of endogenous antioxidant systems. This study aimed to determine whether KF consumption modulates the antioxidant capacity of plasma and brain tissue in growing pigs. Eighteen male pigs were divided equally into three groups: (1) bread, (2) bread + Actinidia deliciosa cv. 'Hayward' (green-fleshed), and (3) bread + A. chinensis cv. 'Hort16A' (yellow-fleshed). Following consumption of the diets for eight days, plasma and brain tissue (brain stem, corpus striatum, hippocampus, and prefrontal cortex) were collected and measured for biomarkers of antioxidant capacity, enzyme activity, and protein expression assessments. Green KF significantly increased ferric-reducing antioxidant potential (FRAP) in plasma and all brain regions compared with the bread-only diet. Gold KF increased plasma ascorbate concentration and trended towards reducing acetylcholinesterase activity in the brain compared with the bread-only diet. Pearson correlation analysis revealed a significant positive correlation between FRAP in the brain stem, prefrontal cortex, and hippocampus with the total polyphenol concentration of dietary interventions. These findings provide exploratory evidence for the benefits of KF constituents in augmenting the brain's antioxidant capacity that may support neurological homeostasis during oxidative stress.
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Affiliation(s)
- Alexander P. Kanon
- School of Health Sciences, College of Health, Massey University, Palmerston North 4442, New Zealand;
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
- Alpha-Massey Natural Nutraceutical Research Centre, Massey University, Palmerston North 4442, New Zealand
| | - Caroline Giezenaar
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
- Food Experience and Sensory Testing Laboratory, School of Food and Advanced Technology, Palmerston North 4410, New Zealand
| | - Nicole C. Roy
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
- Department of Human Nutrition, University of Otago, Dunedin 9016, New Zealand
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand
| | - Isuri A. Jayawardana
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
| | - Dominic Lomiwes
- Immune Health and Physical Performance, Nutrition and Health Group, The New Zealand Institute for Plant and Food Research Limited, Palmerston North 4410, New Zealand;
| | - Carlos A. Montoya
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
- Smart Foods and Bioproducts, AgResearch Ltd., Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand
| | - Warren C. McNabb
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
- High-Value Nutrition National Science Challenge, Auckland 1023, New Zealand
| | - Sharon J. Henare
- School of Health Sciences, College of Health, Massey University, Palmerston North 4442, New Zealand;
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North 4442, New Zealand; (C.G.); (N.C.R.); (I.A.J.); (C.A.M.); (W.C.M.)
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Lu P, Gao CX, Luo FJ, Huang YT, Gao MM, Long YS. Hippocampal proteomic changes in high-fat diet-induced obese mice associated with memory decline. J Nutr Biochem 2024; 125:109554. [PMID: 38142716 DOI: 10.1016/j.jnutbio.2023.109554] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2023] [Revised: 11/24/2023] [Accepted: 12/19/2023] [Indexed: 12/26/2023]
Abstract
Substantial evidence suggest that chronic consumption of high-fat diets (HFDs) can lead to obesity, abnormal metabolism, as well as cognitive impairment. Molecular and cellular changes regarding hippocampal dysfunctions have been identified in multiple HFD animal models. Therefore, in-depth identification of expression changes of hippocampal proteins is critical for understanding the mechanism of HFD-induced cognitive deficits. In this study, we fed 3-week-old male mice with HFD for 3 months to generate obese mice who exhibit systemic metabolic abnormality and learning and memory decline. Using an iTRAQ-labeled proteomic analysis, we identified a total of 82 differentially expressed proteins (DEPs) in the hippocampus upon HFD with 35 up-regulated proteins and 47 down-regulated proteins. Functional enrichment indicated that these DEPs were predominantly enriched in regulation of catabolic process, dendritic shaft, neuron projection morphogenesis and GTPase regulator activity. Protein-protein interaction enrichment showed that the DEPs are mostly enriched in postsynaptic functions; and of them, six proteins (i.e., DLG3, SYNGAP1, DCLK1, GRIA4, GRIP1, and ARHGAP32) were involved in several functional assemblies of the postsynaptic density including G-protein signaling, scaffolding and adaptor, kinase and AMPA signaling, respectively. Collectively, our findings suggest that these DEPs upon HFD might contribute to memory decline by disturbing neuronal and postsynaptic functions in the hippocampus.
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Affiliation(s)
- Ping Lu
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Cun-Xiu Gao
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Fei-Jian Luo
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Yu-Ting Huang
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Mei-Mei Gao
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Yue-Sheng Long
- Department of Neurology, Institute of Neuroscience, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China.
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