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Liu Q, Wang Y, Wan Y, Liang Y, Tan Y, Wei M, Hou T. Selenium- and/or Zinc-Enriched Egg Diet Improves Oxidative Damage and Regulates Gut Microbiota in D-Gal-Induced Aging Mice. Nutrients 2024; 16:512. [PMID: 38398836 PMCID: PMC10893158 DOI: 10.3390/nu16040512] [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: 01/03/2024] [Revised: 02/05/2024] [Accepted: 02/07/2024] [Indexed: 02/25/2024] Open
Abstract
Eggs, with their high nutritional value, are great carriers for enriching nutrients. In this study, selenium- and/or zinc-enriched eggs (SZE) were obtained and their effects on ameliorating oxidative stress injury, alleviating cognitive impairment, and maintaining intestinal flora balance in a D-gal-induced aging mice model were investigated. As determined by the Y-maze test, SZE restored the learning and memory abilities and increased the Ach level and AChE activity of aging mice (p < 0.05). Meanwhile, supplementation of low-dose SZE increased antioxidant levels and decreased inflammation levels (p < 0.05). High-dose SZE increased anti-inflammatory levels but were less effective than low dose. Additionally, SZE maintained the intestinal flora balance and significantly increased the ratio of Firmicutes and Bacteroidota. Blautia, as a probiotic, was negatively correlated with pro-inflammatory factors and positively correlated with antioxidant levels (p < 0.05). These results suggest that SZE might improve organ damage and cognitive function by attenuating oxidative stress and inflammatory response and maintaining healthy gut flora.
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Affiliation(s)
- Qiaocui Liu
- Key Laboratory of Egg Processing, Ministry of Agriculture and Rural Affairs, Wuhan 430000, China; (Q.L.); (Y.W.); (Y.L.); (Y.T.); (M.W.)
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Yulin Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China;
| | - Yuan Wan
- Key Laboratory of Egg Processing, Ministry of Agriculture and Rural Affairs, Wuhan 430000, China; (Q.L.); (Y.W.); (Y.L.); (Y.T.); (M.W.)
| | - Yu Liang
- Key Laboratory of Egg Processing, Ministry of Agriculture and Rural Affairs, Wuhan 430000, China; (Q.L.); (Y.W.); (Y.L.); (Y.T.); (M.W.)
| | - Yali Tan
- Key Laboratory of Egg Processing, Ministry of Agriculture and Rural Affairs, Wuhan 430000, China; (Q.L.); (Y.W.); (Y.L.); (Y.T.); (M.W.)
| | - Mengya Wei
- Key Laboratory of Egg Processing, Ministry of Agriculture and Rural Affairs, Wuhan 430000, China; (Q.L.); (Y.W.); (Y.L.); (Y.T.); (M.W.)
| | - Tao Hou
- Key Laboratory of Egg Processing, Ministry of Agriculture and Rural Affairs, Wuhan 430000, China; (Q.L.); (Y.W.); (Y.L.); (Y.T.); (M.W.)
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
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Pilliol V, Beye M, Terlier L, Balmelle J, Kacel I, Lan R, Aboudharam G, Grine G, Terrer E. Methanobrevibacter massiliense and Pyramidobacter piscolens Co-Culture Illustrates Transkingdom Symbiosis. Microorganisms 2024; 12:215. [PMID: 38276200 PMCID: PMC10819710 DOI: 10.3390/microorganisms12010215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/11/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
Among oral microbiota methanogens, Methanobrevibacter massiliense (M. massiliense) has remained less studied than the well-characterised and cultivated methanogens Methanobrevibacter oralis and Methanobrevibacter smithii. M. massiliense has been associated with different oral pathologies and was co-isolated with the Synergistetes bacterium Pyramidobacter piscolens (P. piscolens) in one case of severe periodontitis. Here, reporting on two additional necrotic pulp cases yielded the opportunity to characterise two co-cultivated M. massiliense isolates, both with P. piscolens, as non-motile, 1-2-µm-long and 0.6-0.8-µm-wide Gram-positive coccobacilli which were autofluorescent at 420 nm. The two whole genome sequences featured a 31.3% GC content, gapless 1,834,388-base-pair chromosome exhibiting an 85.9% coding ratio, encoding a formate dehydrogenase promoting M. massiliense growth without hydrogen in GG medium. These data pave the way to understanding a symbiotic, transkingdom association with P. piscolens and its role in oral pathologies.
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Affiliation(s)
- Virginie Pilliol
- IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Aix-Marseille University, 13005 Marseille, France; (V.P.); (L.T.); (J.B.); (G.A.)
- Ecole de Médecine Dentaire, Aix-Marseille University, 13385 Marseille, France;
| | - Mamadou Beye
- IHU Méditerranée Infection, 13005 Marseille, France; (M.B.); (I.K.)
| | - Laureline Terlier
- IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Aix-Marseille University, 13005 Marseille, France; (V.P.); (L.T.); (J.B.); (G.A.)
- IHU Méditerranée Infection, 13005 Marseille, France; (M.B.); (I.K.)
| | - Julien Balmelle
- IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Aix-Marseille University, 13005 Marseille, France; (V.P.); (L.T.); (J.B.); (G.A.)
- IHU Méditerranée Infection, 13005 Marseille, France; (M.B.); (I.K.)
| | - Idir Kacel
- IHU Méditerranée Infection, 13005 Marseille, France; (M.B.); (I.K.)
| | - Romain Lan
- Ecole de Médecine Dentaire, Aix-Marseille University, 13385 Marseille, France;
- CNRS, EFS, ADES, Aix-Marseille University, 13385 Marseille, France
| | - Gérard Aboudharam
- IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Aix-Marseille University, 13005 Marseille, France; (V.P.); (L.T.); (J.B.); (G.A.)
- Ecole de Médecine Dentaire, Aix-Marseille University, 13385 Marseille, France;
| | - Ghiles Grine
- IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Aix-Marseille University, 13005 Marseille, France; (V.P.); (L.T.); (J.B.); (G.A.)
- IHU Méditerranée Infection, 13005 Marseille, France; (M.B.); (I.K.)
| | - Elodie Terrer
- IRD, AP-HM, MEPHI, IHU Méditerranée Infection, Aix-Marseille University, 13005 Marseille, France; (V.P.); (L.T.); (J.B.); (G.A.)
- Ecole de Médecine Dentaire, Aix-Marseille University, 13385 Marseille, France;
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Livingston DBH, Sweet A, Rodrigue A, Kishore L, Loftus J, Ghali F, Mahmoodianfard S, Celton C, Hosseinian F, Power KA. Dietary Flaxseed and Flaxseed Oil Differentially Modulate Aspects of the Microbiota Gut-Brain Axis Following an Acute Lipopolysaccharide Challenge in Male C57Bl/6 Mice. Nutrients 2023; 15:3542. [PMID: 37630732 PMCID: PMC10459276 DOI: 10.3390/nu15163542] [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: 07/15/2023] [Revised: 08/03/2023] [Accepted: 08/05/2023] [Indexed: 08/27/2023] Open
Abstract
The microbiota gut-brain axis (mGBA) is an important contributor to mental health and neurological and mood disorders. Lipopolysaccharides (LPS) are endotoxins that are components of Gram-negative bacteria cell walls and have been widely shown to induce both systemic and neuro-inflammation. Flaxseed (Linum usitatissimum) is an oilseed rich in fibre, n3-poly-unsaturated fatty acid (alpha-linolenic acid (ALA)), and lignan, secoisolariciresinol diglucoside, which all can induce beneficial effects across varying aspects of the mGBA. The objective of this study was to determine the potential for dietary supplementation with flaxseed or flaxseed oil to attenuate LPS-induced inflammation through modulation of the mGBA. In this study, 72 5-week-old male C57Bl/6 mice were fed one of three isocaloric diets for 3 weeks: (1) AIN-93G basal diet (BD), (2) BD + 10% flaxseed (FS), or (3) BD + 4% FS oil (FO). Mice were then injected with LPS (1 mg/kg i.p) or saline (n = 12/group) and samples were collected 24 h post-injection. Dietary supplementation with FS, but not FO, partially attenuated LPS-induced systemic (serum TNF-α and IL-10) and neuro-inflammation (hippocampal and/or medial prefrontal cortex IL-10, TNF-α, IL-1β mRNA expression), but had no effect on sickness and nest-building behaviours. FS-fed mice had enhanced fecal microbial diversity with increased relative abundance of beneficial microbial groups (i.e., Lachnospiraceae, Bifidobacterium, Coriobacteriaceae), reduced Akkermansia muciniphila, and increased production of short-chain fatty acids (SCFAs), which may play a role in its anti-inflammatory response. Overall, this study highlights the potential for flaxseed to attenuate LPS-induced inflammation, in part through modulation of the intestinal microbiota, an effect which may not be solely driven by its ALA-rich oil component.
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Affiliation(s)
- Dawson B. H. Livingston
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8L1, Canada; (D.B.H.L.); (A.S.); (A.R.)
| | - Allison Sweet
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8L1, Canada; (D.B.H.L.); (A.S.); (A.R.)
| | - Alexane Rodrigue
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8L1, Canada; (D.B.H.L.); (A.S.); (A.R.)
| | - Lalit Kishore
- Faculty of Health Science, School of Nutrition Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada; (L.K.); (F.G.)
| | - Julia Loftus
- Faculty of Science, Department of Biochemistry, University of Ottawa, Ottawa, ON K1N 6N5, Canada;
| | - Farida Ghali
- Faculty of Health Science, School of Nutrition Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada; (L.K.); (F.G.)
| | - Salma Mahmoodianfard
- Faculty of Health Science, School of Human Kinetics, University of Ottawa, Ottawa, ON K1N 6N5, Canada;
| | - Colleen Celton
- Faculty of Science, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada; (C.C.); (F.H.)
| | - Farah Hosseinian
- Faculty of Science, Department of Chemistry, Carleton University, Ottawa, ON K1S 5B6, Canada; (C.C.); (F.H.)
- Faculty of Science, Institute of Biochemistry, Carleton University, Ottawa, ON K1S 5B6, Canada
| | - Krista A. Power
- Faculty of Medicine, Department of Biochemistry, Microbiology and Immunology, University of Ottawa, Ottawa, ON K1H 8L1, Canada; (D.B.H.L.); (A.S.); (A.R.)
- Faculty of Health Science, School of Nutrition Sciences, University of Ottawa, Ottawa, ON K1N 6N5, Canada; (L.K.); (F.G.)
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