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Van Le V, Ko SR, Nguyen LTT, Kim JC, Shin Y, Kim K, Ahn CY. Undibacterium cyanobacteriorum sp. nov., an auxin-producing bacterium isolated from fresh water during cyanobacterial bloom period. Antonie Van Leeuwenhoek 2024; 117:99. [PMID: 38985203 DOI: 10.1007/s10482-024-01992-8] [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: 12/12/2023] [Accepted: 06/24/2024] [Indexed: 07/11/2024]
Abstract
A novel Gram-negative, white-pigmented, and auxin-producing strain, 20NA77.5T, was isolated from fresh water during cyanobacterial bloom period. Pairwise comparison of the 16S rRNA gene sequences showed that strain 20NA77.5T belonged to the genus Undibacterium and exhibited the highest sequence similarity to the type strains of Undibacterium danionis (98.00%), Undibacterium baiyunense (97.93%), Undibacterium macrobrachii (97.92%), and Undibacterium fentianense (97.71%). The average nucleotide identity (ANI) and digital DNA-DNA hybridization (dDDH) values between strain 20NA77.5T and its related type strains were below 79.93 and 23.80%, respectively. The predominant fatty acids (> 10% of the total fatty acids) were C16:0 and summed feature 3 (C16:1ω7c and/or C16:1ω6c). The genomic DNA G + C content of strain 20NA77.5T was found to be 48.61%. Based on the phylogenetic distinctness, chemotaxonomic features, and phenotypic features, strain 20NA77.5T is considered to represent a novel species of the genus Undibacterium, for which the name Undibacterium cyanobacteriorum sp. nov is proposed. The type strain is 20NA77.5T (= KCTC 8005T = LMG 33136T).
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Affiliation(s)
- Ve Van Le
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - So-Ra Ko
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Loan Thi Thanh Nguyen
- Department of Agricultural Chemistry, College of Agriculture and Life Sciences, Institute of Environmentally Friendly Agriculture, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Jin-Cheol Kim
- Department of Agricultural Chemistry, College of Agriculture and Life Sciences, Institute of Environmentally Friendly Agriculture, Chonnam National University, Gwangju, 61186, Republic of Korea
| | - Yuna Shin
- Water Quality Assessment Research Division, National Institute of Environmental Research, Incheon, 22689, Republic of Korea
| | - Kyunghyun Kim
- Water Quality Assessment Research Division, National Institute of Environmental Research, Incheon, 22689, Republic of Korea
| | - Chi-Yong Ahn
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea.
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon, 34113, Republic of Korea.
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Bhat A, Carranza FR, Tuckowski AM, Leiser SF. Flavin-containing monooxygenase (FMO): Beyond xenobiotics. Bioessays 2024; 46:e2400029. [PMID: 38713170 DOI: 10.1002/bies.202400029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2024] [Revised: 04/23/2024] [Accepted: 04/24/2024] [Indexed: 05/08/2024]
Abstract
Flavin-containing monooxygenases (FMOs), traditionally known for detoxifying xenobiotics, are now recognized for their involvement in endogenous metabolism. We recently discovered that an isoform of FMO, fmo-2 in Caenorhabditis elegans, alters endogenous metabolism to impact longevity and stress tolerance. Increased expression of fmo-2 in C. elegans modifies the flux through the key pathway known as One Carbon Metabolism (OCM). This modified flux results in a decrease in the ratio of S-adenosyl-methionine (SAM) to S-adenosyl-homocysteine (SAH), consequently diminishing methylation capacity. Here we discuss how FMO-2-mediated formate production during tryptophan metabolism may serve as a trigger for changing the flux in OCM. We suggest formate bridges tryptophan and OCM, altering metabolic flux away from methylation during fmo-2 overexpression. Additionally, we highlight how these metabolic results intersect with the mTOR and AMPK pathways, in addition to mitochondrial metabolism. In conclusion, the goal of this essay is to bring attention to the central role of FMO enzymes but lack of understanding of their mechanisms. We justify a call for a deeper understanding of FMO enzyme's role in metabolic rewiring through tryptophan/formate or other yet unidentified substrates. Additionally, we emphasize the identification of novel drugs and microbes to induce FMO activity and extend lifespan.
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Affiliation(s)
- Ajay Bhat
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, Michigan, USA
| | - Faith R Carranza
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, Michigan, USA
| | - Angela M Tuckowski
- Cellular and Molecular Biology Program, University of Michigan, Ann Arbor, Michigan, USA
| | - Scott F Leiser
- Molecular & Integrative Physiology Department, University of Michigan, Ann Arbor, Michigan, USA
- Department of Internal Medicine, University of Michigan, Ann Arbor, Michigan, USA
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3
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Harikrishnan S, Kaushik D, Kumar M, Kaur J, Oz E, Proestos C, Elobeid T, Karakullukcu OF, Oz F. Vitamin B12: prevention of human beings from lethal diseases and its food application. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024. [PMID: 38922926 DOI: 10.1002/jsfa.13661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/10/2024] [Accepted: 06/03/2024] [Indexed: 06/28/2024]
Abstract
Vitamin B12, a water-soluble essential micronutrient, plays a pivotal role in numerous physiological processes in the human body. This review meticulously examines the structural complexity and the diverse mechanisms through which vitamin B12 exerts its preventive effects against a spectrum of health conditions, including pernicious anaemia, neurological disorders, obesity, diabetes, dyslipidaemia and complications in foetal development. The selection of articles for this review was conducted through a systematic search across multiple scientific databases, including PubMed, Scopus and Web of Science. Criteria for inclusion encompassed relevance to the biochemical impact of vitamin B12 on health, peer-reviewed status and publication within the last decade. Exclusion criteria were non-English articles and studies lacking empirical evidence. This stringent selection process ensured a comprehensive analysis of vitamin B12's multifaceted impact on health, covering its structure, bioavailable forms and mechanisms of action. Clinical studies highlighting its therapeutic potential, applications in food fortification and other utilizations are also discussed, underscoring the nutrient's versatility. This synthesis aims to provide a clear understanding of the integral role of vitamin B12 in maintaining human health and its potential in clinical and nutritional applications. © 2024 The Author(s). Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- S Harikrishnan
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, India
| | - Deepika Kaushik
- Department of Biotechnology, Faculty of Applied Sciences and Biotechnology, Shoolini University, Solan, India
| | - Mukul Kumar
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, India
| | - Jasjit Kaur
- Department of Food Technology and Nutrition, Lovely Professional University, Phagwara, India
| | - Emel Oz
- Department of Food Engineering, Faculty of Agriculture, Ataturk University, Erzurum, Türkiye
| | - Charalampos Proestos
- Laboratory of Food Chemistry, Department of Chemistry, School of Sciences, National and Kapodistrian University of Athens Zografou, Athens, Greece
| | - Tahra Elobeid
- Department of Human Nutrition, College of Health Sciences, QU Health, Qatar University, Doha, Qatar
| | - Omur Fatih Karakullukcu
- Republic of Türkiye, Ministry National Education, General Directorate of Support Services, Ankara, Turkey
| | - Fatih Oz
- Department of Food Engineering, Faculty of Agriculture, Ataturk University, Erzurum, Türkiye
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Zabolotneva AA, Kolesnikova IM, Vasiliev IY, Grigoryeva TV, Roumiantsev SA, Shestopalov AV. The Obesogenic Gut Microbiota as a Crucial Factor Defining the Depletion of Predicted Enzyme Abundance for Vitamin B12 Synthesis in the Mouse Intestine. Biomedicines 2024; 12:1280. [PMID: 38927487 PMCID: PMC11201498 DOI: 10.3390/biomedicines12061280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/25/2024] [Accepted: 06/07/2024] [Indexed: 06/28/2024] Open
Abstract
Currently, obesity is a critical global public health burden. Numerous studies have demonstrated the regulation of the pathogenesis of obesity and metabolic abnormalities by the gut microbiota and microbial factors; however, their involvement in the various degrees of obesity is not yet well understood. Previously, obesity has been shown to be associated with decreased levels of vitamin B12. Considering exclusive microbial production of vitamin B12, we hypothesized that a decrease in cobalamin levels in obese individuals may be at least partially caused by its depleted production in the intestinal tract by the commensal microbiota. In the present study, our aim was to estimate the abundance of enzymes and metabolic pathways for vitamin B12 synthesis in the gut microbiota of mouse models of alimentary and genetically determined obesity, to evaluate the contribution of the obesogenic microbiome to vitamin B12 synthesis in the gut. We have defined a significantly lower predicted abundance of enzymes and metabolic pathways for vitamin B12 biosynthesis in obese mice compared to non-obese mice, wherein enzyme depletion was more pronounced in lepr(-/-) (db/db) mice, which developed severe obesity. The predicted abundance of enzymes involved in cobalamin synthesis is strongly correlated with the representation of several microbes in high-fat diet-fed mice, while there were almost no correlations in db/db mice. Therefore, the degree of obesity and the composition of the correspondent microbiota are the main contributors to the representation of genes and pathways for cobalamin biosynthesis in the mouse gut.
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Affiliation(s)
- Anastasia A. Zabolotneva
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (I.M.K.); (S.A.R.); (A.V.S.)
- Laboratory of Biochemistry of Signaling Pathways, Endocrinology Research Center, 11 Dm. Ulyanova Str., Moscow 117036, Russia; (I.Y.V.); (T.V.G.)
| | - Irina M. Kolesnikova
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (I.M.K.); (S.A.R.); (A.V.S.)
- Laboratory of Biochemistry of Signaling Pathways, Endocrinology Research Center, 11 Dm. Ulyanova Str., Moscow 117036, Russia; (I.Y.V.); (T.V.G.)
| | - Ilya Yu. Vasiliev
- Laboratory of Biochemistry of Signaling Pathways, Endocrinology Research Center, 11 Dm. Ulyanova Str., Moscow 117036, Russia; (I.Y.V.); (T.V.G.)
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., Kazan 420008, Russia
| | - Tatiana V. Grigoryeva
- Laboratory of Biochemistry of Signaling Pathways, Endocrinology Research Center, 11 Dm. Ulyanova Str., Moscow 117036, Russia; (I.Y.V.); (T.V.G.)
- Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Str., Kazan 420008, Russia
| | - Sergei A. Roumiantsev
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (I.M.K.); (S.A.R.); (A.V.S.)
- Laboratory of Biochemistry of Signaling Pathways, Endocrinology Research Center, 11 Dm. Ulyanova Str., Moscow 117036, Russia; (I.Y.V.); (T.V.G.)
| | - Aleksandr V. Shestopalov
- Department of Biochemistry and Molecular Biology, Faculty of Medicine, N. I. Pirogov Russian National Research Medical University, 1 Ostrovitianov Str., Moscow 117997, Russia; (I.M.K.); (S.A.R.); (A.V.S.)
- Laboratory of Biochemistry of Signaling Pathways, Endocrinology Research Center, 11 Dm. Ulyanova Str., Moscow 117036, Russia; (I.Y.V.); (T.V.G.)
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Izquierdo Lafuente B, Verboom T, Coenraads S, Ummels R, Bitter W, Speer A. Vitamin B 12 uptake across the mycobacterial outer membrane is influenced by membrane permeability in Mycobacterium marinum. Microbiol Spectr 2024; 12:e0316823. [PMID: 38722177 DOI: 10.1128/spectrum.03168-23] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2023] [Accepted: 04/12/2024] [Indexed: 06/06/2024] Open
Abstract
Vitamin B12 (B12) serves as a critical cofactor within mycobacterial metabolism. While some pathogenic strains can synthesize B12 de novo, others rely on host-acquired B12. In this investigation, we studied the transport of vitamin B12 in Mycobacterium marinum using B12-auxotrophic and B12-sensitive strains by deleting metH or metE, respectively. These two enzymes rely on B12 in different ways to function as methionine synthases. We used these strains to select mutants affecting B12 scavenging and confirmed their phenotypes during growth experiments in vitro. Our analysis of B12 uptake mechanisms revealed that membrane lipids and cell wall integrity play an essential role in cell envelope transport. Furthermore, we identified a potential transcription regulator that responds to B12. Our study demonstrates that M. marinum can take up exogenous B12 and that altering mycobacterial membrane integrity affects B12 uptake. Finally, during zebrafish infection using B12-auxotrophic and B12-sensitive strains, we found that B12 is available for virulent mycobacteria in vivo.IMPORTANCEOur study investigates how mycobacteria acquire essential vitamin B12. These microbes, including those causing tuberculosis, face challenges in nutrient uptake due to their strong outer layer. We focused on Mycobacterium marinum, similar to TB bacteria, to uncover its vitamin B12 absorption. We used modified strains unable to produce their own B12 and discovered that M. marinum can indeed absorb it from the environment, even during infections. Changes in the outer layer composition affect this process, and genes related to membrane integrity play key roles. These findings illuminate the interaction between mycobacteria and their environment, offering insights into combatting diseases like tuberculosis through innovative strategies. Our concise research underscores the pivotal role of vitamin B12 in microbial survival and its potential applications in disease control.
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Affiliation(s)
- Beatriz Izquierdo Lafuente
- Section Molecular Microbiology, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Theo Verboom
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Amsterdam, The Netherlands
| | - Sita Coenraads
- Section Molecular Microbiology, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
| | - Roy Ummels
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Amsterdam, The Netherlands
| | - Wilbert Bitter
- Section Molecular Microbiology, Amsterdam Institute of Molecular and Life Sciences (AIMMS), Vrije Universiteit Amsterdam, Amsterdam, The Netherlands
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Amsterdam, The Netherlands
| | - Alexander Speer
- Department of Medical Microbiology and Infection Control, Amsterdam UMC, Amsterdam, The Netherlands
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Hannibal L, Lederer AK, Storz MA, Huber R, Jacobsen DW. Vitamin B 12 Status and Supplementation in Plant-Based Diets. Food Nutr Bull 2024; 45:S58-S66. [PMID: 38987876 DOI: 10.1177/03795721241227233] [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] [Indexed: 07/12/2024]
Abstract
Plant-based diets are increasingly popular worldwide. A well-planned plant-based diet lowers the risk of cardiovascular disease, type 2 diabetes and certain cancers. In contrast, a poorly planned plant-based diet increases the risk of certain micronutrient deficiencies, chiefly, vitamin B12 (B12). Because B12 is not present in plants or in unfortified plant-based foodstuffs, the safest way to prevent its deficiency in plant-based diets is to take an oral B12 supplement. Studies determining the dose and frequency of B12 to be taken by healthy individuals on a plant-based diet to support an adequate B12 status are scarce. Here, we summarize the natural sources, metabolic requirements, biomarker findings with and without supplementation with B12, and current recommendations to help prevent vitamin B12 deficiency in healthy individuals adhering or transitioning to plant-based diets. This review focuses on the prevention of vitamin B12 deficiency in healthy individuals adhering to plant-based diets. The information covered in this review does not apply to individuals suffering from autoimmune-based malabsorption of vitamin B12 resulting from pernicious anemia due to atrophic gastritis, other acquired causes of B12 malabsorption or to those with genetic disorders that impair vitamin B12 absorption, transport and utilization.
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Affiliation(s)
- Luciana Hannibal
- Laboratory of Clinical Biochemistry and Metabolism, Department of General Pediatrics, Adolescent Medicine and Neonatology, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Ann-Kathrin Lederer
- Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
- Department of General, Visceral and Transplant Surgery, University Medical Center, Johannes Gutenberg University, Mainz, Germany
| | - Maximilian A Storz
- Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Roman Huber
- Center for Complementary Medicine, Department of Medicine II, Faculty of Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Donald W Jacobsen
- Department of Cardiovascular and Metabolic Sciences, Lerner Research Institute, Cleveland Clinic, Cleveland, OH, USA
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Mezzetti M, Passamonti MM, Dall’Asta M, Bertoni G, Trevisi E, Ajmone Marsan P. Emerging Parameters Justifying a Revised Quality Concept for Cow Milk. Foods 2024; 13:1650. [PMID: 38890886 PMCID: PMC11171858 DOI: 10.3390/foods13111650] [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: 04/22/2024] [Revised: 05/22/2024] [Accepted: 05/22/2024] [Indexed: 06/20/2024] Open
Abstract
Milk has become a staple food product globally. Traditionally, milk quality assessment has been primarily focused on hygiene and composition to ensure its safety for consumption and processing. However, in recent years, the concept of milk quality has expanded to encompass a broader range of factors. Consumers now also consider animal welfare, environmental impact, and the presence of additional beneficial components in milk when assessing its quality. This shifting consumer demand has led to increased attention on the overall production and sourcing practices of milk. Reflecting on this trend, this review critically explores such novel quality parameters, offering insights into how such practices meet the modern consumer's holistic expectations. The multifaceted aspects of milk quality are examined, revealing the intertwined relationship between milk safety, compositional integrity, and the additional health benefits provided by milk's bioactive properties. By embracing sustainable farming practices, dairy farmers and processors are encouraged not only to fulfill but to anticipate consumer standards for premium milk quality. This comprehensive approach to milk quality underscores the necessity of adapting dairy production to address the evolving nutritional landscape and consumption patterns.
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Affiliation(s)
- Matteo Mezzetti
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; (M.M.); (M.M.P.); (M.D.); (G.B.); (E.T.)
| | - Matilde Maria Passamonti
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; (M.M.); (M.M.P.); (M.D.); (G.B.); (E.T.)
| | - Margherita Dall’Asta
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; (M.M.); (M.M.P.); (M.D.); (G.B.); (E.T.)
| | - Giuseppe Bertoni
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; (M.M.); (M.M.P.); (M.D.); (G.B.); (E.T.)
| | - Erminio Trevisi
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; (M.M.); (M.M.P.); (M.D.); (G.B.); (E.T.)
- Romeo and Enrica Invernizzi Research Center for Sustainable Dairy Production of the Università Cattolica del Sacro Cuore (CREI), 29122 Piacenza, Italy
| | - Paolo Ajmone Marsan
- Dipartimento di Scienze Animali, della Nutrizione e degli Alimenti (DIANA), Facoltà di Scienze Agrarie, Alimentari e Ambientali, Università Cattolica del Sacro Cuore, 29122 Piacenza, Italy; (M.M.); (M.M.P.); (M.D.); (G.B.); (E.T.)
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8
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Bokhove M, Kawamura T, Okumura H, Goto S, Kawano Y, Werner S, Jarczowski F, Klimyuk V, Saito A, Kumasaka T. The structure of the rat vitamin B 12 transporter TC and its complex with glutathionylcobalamin. J Biol Chem 2024; 300:107289. [PMID: 38636663 PMCID: PMC11107200 DOI: 10.1016/j.jbc.2024.107289] [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: 12/21/2023] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/20/2024] Open
Abstract
Vitamin B12 (cobalamin or Cbl) functions as a cofactor in two important enzymatic processes in human cells, and life is not sustainable without it. B12 is obtained from food and travels from the stomach, through the intestine, and into the bloodstream by three B12-transporting proteins: salivary haptocorrin (HC), gastric intrinsic factor, and transcobalamin (TC), which all bind B12 with high affinity and require proteolytic degradation to liberate Cbl. After intracellular delivery of dietary B12, Cbl in the aquo/hydroxocobalamin form can coordinate various nucleophiles, for example, GSH, giving rise to glutathionylcobalamin (GSCbl), a naturally occurring form of vitamin B12. Currently, there is no data showing whether GSCbl is recognized and transported in the human body. Our crystallographic data shows for the first time the complex between a vitamin B12 transporter and GSCbl, which compared to aquo/hydroxocobalamin, binds TC equally well. Furthermore, sequence analysis and structural comparisons show that TC recognizes and transports GSCbl and that the residues involved are conserved among TCs from different organisms. Interestingly, haptocorrin and intrinsic factor are not structurally tailored to bind GSCbl. This study provides new insights into the interactions between TC and Cbl.
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Affiliation(s)
- Marcel Bokhove
- Structural Biology Division, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, Japan.
| | - Takashi Kawamura
- Structural Biology Division, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, Japan
| | - Hideo Okumura
- Structural Biology Division, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, Japan
| | - Sawako Goto
- Department of Applied Molecular Medicine, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan
| | - Yoshiaki Kawano
- Advanced Photon Technology Division, RIKEN SPring-8 Center, Sayo, Hyogo, Japan
| | | | | | | | - Akihiko Saito
- Department of Applied Molecular Medicine, Kidney Research Center, Niigata University Graduate School of Medical and Dental Sciences, Chuo-ku, Niigata, Japan
| | - Takashi Kumasaka
- Structural Biology Division, Japan Synchrotron Radiation Research Institute (JASRI), Sayo, Hyogo, Japan.
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9
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Schaub GA. Interaction of Trypanosoma cruzi, Triatomines and the Microbiota of the Vectors-A Review. Microorganisms 2024; 12:855. [PMID: 38792688 PMCID: PMC11123833 DOI: 10.3390/microorganisms12050855] [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: 03/03/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 05/26/2024] Open
Abstract
This review summarizes the interactions between Trypanosoma cruzi, the etiologic agent of Chagas disease, its vectors, triatomines, and the diverse intestinal microbiota of triatomines, which includes mutualistic symbionts, and highlights open questions. T. cruzi strains show great biological heterogeneity in their development and their interactions. Triatomines differ from other important vectors of diseases in their ontogeny and the enzymes used to digest blood. Many different bacteria colonize the intestinal tract of triatomines, but only Actinomycetales have been identified as mutualistic symbionts. Effects of the vector on T. cruzi are indicated by differences in the ability of T. cruzi to establish in the triatomines and in colonization peculiarities, i.e., proliferation mainly in the posterior midgut and rectum and preferential transformation into infectious metacyclic trypomastigotes in the rectum. In addition, certain forms of T. cruzi develop after feeding and during starvation of triatomines. Negative effects of T. cruzi on the triatomine vectors appear to be particularly evident when the triatomines are stressed and depend on the T. cruzi strain. Effects on the intestinal immunity of the triatomines are induced by ingested blood-stage trypomastigotes of T. cruzi and affect the populations of many non-symbiotic intestinal bacteria, but not all and not the mutualistic symbionts. After the knockdown of antimicrobial peptides, the number of non-symbiotic bacteria increases and the number of T. cruzi decreases. Presumably, in long-term infections, intestinal immunity is suppressed, which supports the growth of specific bacteria, depending on the strain of T. cruzi. These interactions may provide an approach to disrupt T. cruzi transmission.
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Affiliation(s)
- Günter A Schaub
- Zoology/Parasitology, Ruhr-University Bochum, Universitätsstr. 150, 44780 Bochum, Germany
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10
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Le VV, Ko SR, Kim MS, Kang M, Jeong S, Ahn CY. Sphingobium cyanobacteriorum sp. nov., isolated from fresh water. Int J Syst Evol Microbiol 2024; 74. [PMID: 38629946 DOI: 10.1099/ijsem.0.006339] [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] [Indexed: 04/19/2024] Open
Abstract
A novel Gram-stain-negative, yellow-pigmented, short rod-shaped bacterial strain, HBC34T, was isolated from a freshwater sample collected from Daechung Reservoir, Republic of Korea. The results of 16S rRNA gene sequence analysis indicated that HBC34T was affiliated with the genus Sphingobium and shared the highest sequence similarity to the type strains of Sphingobium vermicomposti (98.01 %), Sphingobium psychrophilum (97.87 %) and Sphingobium rhizovicinum (97.59 %). The average nucleotide identity (ANI) and digital DNA-DNA hybridisation (dDDH) values between HBC34T and species of the genus Sphingobium with validly published names were below 84.01 and 28.1 %, respectively. These values were lower than the accepted species-delineation thresholds, supporting its recognition as representing a novel species of the genus Sphingobium. The major fatty acids (>10 % of the total fatty acids) were identified as summed feature 8 (C18 : 1ω7c and/or C18 : 1ω6c) and summed feature 3 (C16 : 1ω7c and/or C16 : 1ω6c). The main polar lipids were phosphatidylglycerol, phosphatidylcholine, phosphatidylethanolamine, two phospholipids and two unidentified polar lipids. The respiratory quinone was Q-10. The genomic DNA G+C content of HBC34T was 64.04 %. The polyphasic evidence supports the classification of HBC34T as the type strain of a novel species of the genus Sphingobium, for which the name Sphingobium cyanobacteriorum sp. nov is proposed. The type strain is HBC34T (= KCTC 8002T= LMG 33140T).
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Affiliation(s)
- Ve Van Le
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - So-Ra Ko
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Min-Seong Kim
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Mingyeong Kang
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
| | - Seonah Jeong
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
| | - Chi-Yong Ahn
- Cell Factory Research Center, Korea Research Institute of Bioscience and Biotechnology (KRIBB), 125 Gwahak-ro, Yuseong-gu, Daejeon 34141, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology (UST), 217 Gajeong-ro, Yuseong-gu, Daejeon 34113, Republic of Korea
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11
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Goode JP, Smith KJ, Breslin M, Kilpatrick M, Dwyer T, Venn AJ, Magnussen CG. Modelling the replacement of red and processed meat with plant-based alternatives and the estimated effect on insulin sensitivity in a cohort of Australian adults. Br J Nutr 2024; 131:1084-1094. [PMID: 37981891 PMCID: PMC10876457 DOI: 10.1017/s0007114523002659] [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: 09/07/2023] [Revised: 11/12/2023] [Accepted: 11/15/2023] [Indexed: 11/21/2023]
Abstract
Dietary guidelines are increasingly promoting mostly plant-based diets, limits on red meat consumption, and plant-based sources of protein for health and environmental reasons. It is unclear how the resulting food substitutions associate with insulin resistance, a risk factor for type 2 diabetes. We modelled the replacement of red and processed meat with plant-based alternatives and the estimated effect on insulin sensitivity. We included 783 participants (55 % female) from the Childhood Determinants of Adult Health study, a population-based cohort of Australians. In adulthood, diet was assessed at three time points using FFQ: 2004–2006, 2009–2011 and 2017–2019. We calculated the average daily intake of each food group in standard serves. Insulin sensitivity was estimated from fasting glucose and insulin concentrations in 2017–2019 (aged 39–49 years) using homoeostasis model assessment. Replacing red meat with a combination of plant-based alternatives was associated with higher insulin sensitivity (β = 10·5 percentage points, 95 % CI (4·1, 17·4)). Adjustment for waist circumference attenuated this association by 61·7 %. Replacing red meat with either legumes, nuts/seeds or wholegrains was likewise associated with higher insulin sensitivity. Point estimates were similar but less precise when replacing processed meat with plant-based alternatives. Our modelling suggests that regularly replacing red meat, and possibly processed meat, with plant-based alternatives may associate with higher insulin sensitivity. Further, abdominal adiposity may be an important mediator in this relationship. Our findings support advice to prioritise plant-based sources of protein at the expense of red meat consumption.
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Affiliation(s)
- James P. Goode
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
| | - Kylie J. Smith
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
| | - Monique Breslin
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
| | - Michelle Kilpatrick
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
| | - Terence Dwyer
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
- Heart Research Group, Murdoch Children’s Research Institute, Melbourne, VIC, Australia
- Nuffield Department of Women’s and Reproductive Health, University of Oxford, Oxford, UK
| | - Alison J. Venn
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
| | - Costan G. Magnussen
- Menzies Institute for Medical Research, University of Tasmania, Hobart, TAS7000, Australia
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Centre for Population Health Research, University of Turku, Turku University Hospital, Turku, Finland
- Research Centre of Applied and Preventive Cardiovascular Medicine, University of Turku, Turku, Finland
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12
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Domínguez-López I, Kovatcheva M, Casas R, Toledo E, Fitó M, Ros E, Estruch R, Serrano M, Lamuela-Raventós RM. Higher circulating vitamin B12 is associated with lower levels of inflammatory markers in individuals at high cardiovascular risk and in naturally aged mice. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2024; 104:875-882. [PMID: 37690097 DOI: 10.1002/jsfa.12976] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/05/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/12/2023]
Abstract
BACKGROUND Vitamin B12 is an essential nutrient that is involved in numerous physiological processes, and its deficiency can lead to various complications, including neurological and haematological disorders. Some studies have suggested that vitamin B12 may have anti-inflammatory effects, but the mechanisms underlying this relationship are not yet fully understood. We investigated the relationship between circulating vitamin B12 and inflammatory markers interleukin (IL)-6 and C-reactive protein (CRP). The association of peripheral levels of vitamin B12 with IL-6 and CRP was assessed in 136 human samples from a high cardiovascular risk population. To corroborate the results from the human trial, the analysis was replicated in naturally aged mice. RESULTS Individuals with higher serum levels of vitamin B12 showed lower concentrations of IL-6 and CRP after adjustment for potential confounders, and an inverse association was also found between serum IL-6 and vitamin B12 levels in naturally aged mice. CONCLUSION Circulating vitamin B12 was inversely associated with IL-6 and CRP in humans and with IL-6 in mice, suggesting that it may exert an anti-inflammatory effect through modulation of these pro-inflammatory molecules. © 2023 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
- Inés Domínguez-López
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Facultat de Farmacia, Universitat de Barcelon (UB), Barcelona, Spain
- Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), Santa Coloma de Gramanet, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
| | - Marta Kovatcheva
- Institute for Research in Biomedicine (IRB), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
| | - Rosa Casas
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Internal Medicine, Hospital Clinic, Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Estefanía Toledo
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Preventive Medicine and Public Health, University of Navarra, IdiSNA, Pamplona, Spain
| | - Montserrat Fitó
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Unit of Cardiovascular Risk and Nutrition, Institut Hospital del Mar de Investigaciones Médicas (IMIM), Barcelona, Spain
| | - Emilio Ros
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Endocrinology, Hospital Clinic, IDIBAPS, Barcelona, Spain
| | - Ramon Estruch
- Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), Santa Coloma de Gramanet, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
- Department of Internal Medicine, Hospital Clinic, Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, Barcelona, Spain
| | - Manuel Serrano
- Institute for Research in Biomedicine (IRB), Barcelona Institute of Science and Technology (BIST), Barcelona, Spain
- Cambridge Institute of Science, Altos Labs, Cambridge, UK
| | - Rosa M Lamuela-Raventós
- Departament de Nutrició, Ciències de l'Alimentació i Gastronomia, Facultat de Farmacia, Universitat de Barcelon (UB), Barcelona, Spain
- Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), Santa Coloma de Gramanet, Spain
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, Madrid, Spain
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13
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Rühlemann MC, Bang C, Gogarten JF, Hermes BM, Groussin M, Waschina S, Poyet M, Ulrich M, Akoua-Koffi C, Deschner T, Muyembe-Tamfum JJ, Robbins MM, Surbeck M, Wittig RM, Zuberbühler K, Baines JF, Leendertz FH, Franke A. Functional host-specific adaptation of the intestinal microbiome in hominids. Nat Commun 2024; 15:326. [PMID: 38182626 PMCID: PMC10770139 DOI: 10.1038/s41467-023-44636-7] [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: 04/05/2023] [Accepted: 12/20/2023] [Indexed: 01/07/2024] Open
Abstract
Fine-scale knowledge of the changes in composition and function of the human gut microbiome compared that of our closest relatives is critical for understanding the evolutionary processes underlying its developmental trajectory. To infer taxonomic and functional changes in the gut microbiome across hominids at different timescales, we perform high-resolution metagenomic-based analyzes of the fecal microbiome from over two hundred samples including diverse human populations, as well as wild-living chimpanzees, bonobos, and gorillas. We find human-associated taxa depleted within non-human apes and patterns of host-specific gut microbiota, suggesting the widespread acquisition of novel microbial clades along the evolutionary divergence of hosts. In contrast, we reveal multiple lines of evidence for a pervasive loss of diversity in human populations in correlation with a high Human Development Index, including evolutionarily conserved clades. Similarly, patterns of co-phylogeny between microbes and hosts are found to be disrupted in humans. Together with identifying individual microbial taxa and functional adaptations that correlate to host phylogeny, these findings offer insights into specific candidates playing a role in the diverging trajectories of the gut microbiome of hominids. We find that repeated horizontal gene transfer and gene loss, as well as the adaptation to transient microaerobic conditions appear to have played a role in the evolution of the human gut microbiome.
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Affiliation(s)
- M C Rühlemann
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany.
- Institute for Medical Microbiology and Hospital Epidemiology, Hannover Medical School, Hannover, Germany.
| | - C Bang
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - J F Gogarten
- Applied Zoology and Nature Conservation, University of Greifswald, Greifswald, Germany
- Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), Greifswald, Germany
- Epidemiology of Highly Pathogenic Microorganisms, Robert Koch Institute, Berlin, Germany
- Viral Evolution, Robert Koch Institute, Berlin, Germany
| | - B M Hermes
- Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Plön, Germany
- Institute of Experimental Medicine, Kiel University, Kiel, Germany
| | - M Groussin
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany
| | - S Waschina
- Nutriinformatics Research Group, Institute for Human Nutrition and Food Science, Kiel University, Kiel, Germany
| | - M Poyet
- Institute of Experimental Medicine, Kiel University, Kiel, Germany
| | - M Ulrich
- Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), Greifswald, Germany
- Epidemiology of Highly Pathogenic Microorganisms, Robert Koch Institute, Berlin, Germany
| | - C Akoua-Koffi
- Training and Research Unit for in Medical Sciences, Alassane Ouattara University / University Teaching Hospital of Bouaké, Bouaké, Côte d'Ivoire
| | - T Deschner
- Comparative BioCognition, Institute of Cognitive Science, University of Osnabrück, Osnabrück, Germany
| | - J J Muyembe-Tamfum
- National Institute for Biomedical Research, National Laboratory of Public Health, Kinshasa, Democratic Republic of the Congo
| | - M M Robbins
- Department of Primate Behavior and Evolution, Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - M Surbeck
- Department of Human Evolutionary Biology, Harvard University, Cambridge, MA, USA
- Max Planck Institute for Evolutionary Anthropology, Leipzig, Germany
| | - R M Wittig
- Institute of Cognitive Sciences, CNRS UMR5229 University Lyon 1, Bron Cedex, France
- Taï Chimpanzee Project, CSRS, Abidjan, Côte d'Ivoire
| | - K Zuberbühler
- Institute of Biology, University of Neuchatel, Neuchatel, Switzerland
- School of Psychology & Neuroscience, University of St Andrews, St Andrews, Scotland, UK
| | - J F Baines
- Evolutionary Genomics, Max Planck Institute for Evolutionary Biology, Plön, Germany
- Institute of Experimental Medicine, Kiel University, Kiel, Germany
| | - F H Leendertz
- Helmholtz Institute for One Health, Helmholtz-Centre for Infection Research (HZI), Greifswald, Germany
- Epidemiology of Highly Pathogenic Microorganisms, Robert Koch Institute, Berlin, Germany
| | - A Franke
- Institute of Clinical Molecular Biology, Kiel University, Kiel, Germany.
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14
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Kang WK, Florman JT, Araya A, Fox BW, Thackeray A, Schroeder FC, Walhout AJM, Alkema MJ. Vitamin B 12 produced by gut bacteria modulates cholinergic signalling. Nat Cell Biol 2024; 26:72-85. [PMID: 38168768 DOI: 10.1038/s41556-023-01299-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 10/26/2023] [Indexed: 01/05/2024]
Abstract
A growing body of evidence indicates that gut microbiota influence brain function and behaviour. However, the molecular basis of how gut bacteria modulate host nervous system function is largely unknown. Here we show that vitamin B12-producing bacteria that colonize the intestine can modulate excitatory cholinergic signalling and behaviour in the host Caenorhabditis elegans. Here we demonstrate that vitamin B12 reduces cholinergic signalling in the nervous system through rewiring of the methionine (Met)/S-adenosylmethionine cycle in the intestine. We identify a conserved metabolic crosstalk between the methionine/S-adenosylmethionine cycle and the choline-oxidation pathway. In addition, we show that metabolic rewiring of these pathways by vitamin B12 reduces cholinergic signalling by limiting the availability of free choline required by neurons to synthesize acetylcholine. Our study reveals a gut-brain communication pathway by which enteric bacteria modulate host behaviour and may affect neurological health.
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Affiliation(s)
- Woo Kyu Kang
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Jeremy T Florman
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Antonia Araya
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Bennett W Fox
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Andrea Thackeray
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Frank C Schroeder
- Boyce Thompson Institute and Department of Chemistry and Chemical Biology, Cornell University, Ithaca, NY, USA
| | - Albertha J M Walhout
- Department of Systems Biology, University of Massachusetts Chan Medical School, Worcester, MA, USA
| | - Mark J Alkema
- Department of Neurobiology, University of Massachusetts Chan Medical School, Worcester, MA, USA.
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15
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Le VV, Ko SR, Oh HM, Ahn CY. Genomic Insights into Paucibacter aquatile DH15, a Cyanobactericidal Bacterium, and Comparative Genomics of the Genus Paucibacter. J Microbiol Biotechnol 2023; 33:1615-1624. [PMID: 37811910 PMCID: PMC10772561 DOI: 10.4014/jmb.2307.07008] [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: 07/06/2023] [Revised: 09/08/2023] [Accepted: 09/14/2023] [Indexed: 10/10/2023]
Abstract
Microcystis blooms threaten ecosystem function and cause substantial economic losses. Microorganism-based methods, mainly using cyanobactericidal bacteria, are considered one of the most ecologically sound methods to control Microcystis blooms. This study focused on gaining genomic insights into Paucibacter aquatile DH15 that exhibited excellent cyanobactericidal effects against Microcystis. Additionally, a pan-genome analysis of the genus Paucibacter was conducted to enhance our understanding of the ecophysiological significance of this genus. Based on phylogenomic analyses, strain DH15 was classified as a member of the species Paucibacter aquatile. The genome analysis supported that strain DH15 can effectively destroy Microcystis, possibly due to the specific genes involved in the flagellar synthesis, cell wall degradation, and the production of cyanobactericidal compounds. The pan-genome analysis revealed the diversity and adaptability of the genus Paucibacter, highlighting its potential to absorb external genetic elements. Paucibacter species were anticipated to play a vital role in the ecosystem by potentially providing essential nutrients, such as vitamins B7, B12, and heme, to auxotrophic microbial groups. Overall, our findings contribute to understanding the molecular mechanisms underlying the action of cyanobactericidal bacteria against Microcystis and shed light on the ecological significance of the genus Paucibacter.
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Affiliation(s)
- Ve Van Le
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology, Daejeon 34141, Republic of Korea
| | - So-Ra Ko
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology, Daejeon 34141, Republic of Korea
| | - Hee-Mock Oh
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology, Daejeon 34141, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
| | - Chi-Yong Ahn
- Cell Factory Research Centre, Korea Research Institute of Bioscience & Biotechnology, Daejeon 34141, Republic of Korea
- Department of Environmental Biotechnology, KRIBB School of Biotechnology, University of Science and Technology, Daejeon 34113, Republic of Korea
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16
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Domínguez-López I, Casas R, Chiva-Blanch G, Martínez-González MÁ, Fitó M, Ros E, Lamuela-Raventós RM, Estruch R. Serum vitamin B12 concentration is associated with improved memory in older individuals with higher adherence to the Mediterranean diet. Clin Nutr 2023; 42:2562-2568. [PMID: 37948836 DOI: 10.1016/j.clnu.2023.10.025] [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: 03/01/2023] [Revised: 10/14/2023] [Accepted: 10/24/2023] [Indexed: 11/12/2023]
Abstract
BACKGROUND & AIMS Vitamin B12 plays a crucial role in cognition, but its effect might be regulated by the presence of other micronutrients, such as folate. The aim was to evaluate the effects of vitamin B12 on cognitive performance according to adherence to the Mediterranean diet, and whether the Mediterranean diet also results in increased folate or vitamin B12 levels. METHODS This is a cohort study nested in a randomized controlled clinical trial performed in Hospital Clinic in Barcelona, Spain. A total of 170 participants of the PREDIMED trial (Barcelona - Hospital Clinic site) aged 55-80 years at high cardiovascular risk were included. Adherence to the Mediterranean diet was assessed using a validated 14-item questionnaire, memory function was evaluated with a battery of neuropsychological tests and serum vitamin B12 and folate were determined using an automated electrochemiluminiscence immunoassay system. RESULTS In the multivariable adjusted linear regression model, serum vitamin B12 concentration presented a significant correlation with memory function (r2 = 0.57; P = 0.028) in participants with high adherence to the Mediterranean diet whereas the correlation was weak and inverse for those who presented a low adherence to the Mediterranean diet (r2 = 0.37, P = 0.731). Mediterranean diet adherence showed a positive association with serum folate, but not with serum vitamin B12. CONCLUSIONS In an older Mediterranean population at high cardiovascular risk, changes in serum vitamin B12 correlate with better memory function only in the context of a high adherence to the Mediterranean pattern, suggesting that the effects of vitamin B12 goes further than a mere nutritional requirement. INSTITUTIONAL REVIEW BOARD STATEMENT The study was conducted according to the guidelines of the Declaration of Helsinki and was approved by the Institutional Review Board of the 11 participating centres. The study was registered with the International Standard Randomized Controlled Trial Number (ISRCTN) 35739639 (https://www.isrctn.com/ISRCTN35739639).
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Affiliation(s)
- Inés Domínguez-López
- Polyphenol Research Group, Departament de Nutrició, Ciències de l'Alimentació i Gastronomía, Facultat de Farmacia, Universitat de Barcelon (UB), Av. de Joan XXII, 27-31, 08028 Barcelona, Spain; Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), 08921 Santa Coloma de Gramanet, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rosa Casas
- Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), 08921 Santa Coloma de Gramanet, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Department of Internal Medicine, Hospital Clinic, Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain
| | - Gemma Chiva-Blanch
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Lipid Clinic, Endocrinology and Nutrition Service, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Hospital Clínic, 08036 Barcelona, Spain
| | - Miguel Ángel Martínez-González
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Department of Preventive Medicine and Public Health, University of Navarra, IdiSNA, 31008 Pamplona, Spain
| | - Montserrat Fitó
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Unit of Cardiovascular Risk and Nutrition, Institut Hospital del Mar de Investigaciones Médicas (IMIM), 08007 Barcelona, Spain
| | - Emilio Ros
- CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Lipid Clinic, Endocrinology and Nutrition Service, Institut d'Investigacions Biomèdiques August Pi i Sunyer, Hospital Clínic, 08036 Barcelona, Spain
| | - Rosa M Lamuela-Raventós
- Polyphenol Research Group, Departament de Nutrició, Ciències de l'Alimentació i Gastronomía, Facultat de Farmacia, Universitat de Barcelon (UB), Av. de Joan XXII, 27-31, 08028 Barcelona, Spain; Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), 08921 Santa Coloma de Gramanet, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain.
| | - Ramon Estruch
- Institut de Nutrició i Seguretat Alimentària (INSA), Universitat de Barcelona (UB), 08921 Santa Coloma de Gramanet, Spain; CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Instituto de Salud Carlos III, 28029 Madrid, Spain; Department of Internal Medicine, Hospital Clinic, Institut d'Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, 08036 Barcelona, Spain.
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17
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Warfel HC, Wilcoxen TE. Lack of vitamin B12 impairs innate and adaptive immunity of Cuban tree frog (Osteopilus septentrionalis) tadpoles. JOURNAL OF EXPERIMENTAL ZOOLOGY. PART A, ECOLOGICAL AND INTEGRATIVE PHYSIOLOGY 2023; 339:878-886. [PMID: 37522473 DOI: 10.1002/jez.2738] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 07/10/2023] [Accepted: 07/12/2023] [Indexed: 08/01/2023]
Abstract
Vitamin B12 is a micronutrient required by a variety of organisms for healthy cellular functioning. Despite the systemic effects observed in cases of B12 deficiency, relatively little is known about how vitamin B12 affects immune health, especially in amphibians, which are declining at unprecedented rates. In this study, we tested how supplementing an algae diet with B12 affects the innate and adaptive immunity of Cuban tree frog (Osteopilus septentrionalis) tadpoles. We found that innate immunity, as measured by a bacterial killing assay, was significantly more robust in B12-supplemented tadpoles than control tadpoles, but no significant differences were found in natural antibody production or hematocrit between groups. Adaptive immunity, as measured by Aeromonas hydrophila-specific IgY antibodies, was significantly greater in tadpoles challenged with A. hydrophila and supplemented with B12 than in control tadpoles, those only challenged with A. hydrophila, and those only given B12. Our results suggest that vitamin B12 is an important factor in maintaining a functional immune system in tadpoles, which may also be true for all vertebrates.
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Affiliation(s)
- Hannah C Warfel
- School of Biological Sciences, Illinois State University, Normal, Illinois, USA
- Department of Biology, Millikin University, Decatur, Illinois, USA
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18
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Raths R, Rodriguez B, Holloway JW, Waite A, Lawrence T, van de Ligt JLG, Purvis H, Doering-Resch H, Casper DP. Comparison of growth performance and tissue cobalt concentrations in beef cattle fed inorganic and organic cobalt sources. Transl Anim Sci 2023; 7:txad120. [PMID: 38023418 PMCID: PMC10648571 DOI: 10.1093/tas/txad120] [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: 07/20/2023] [Accepted: 10/16/2023] [Indexed: 12/01/2023] Open
Abstract
Cobalt is an essential trace mineral required for ruminal vitamin B12 synthesis, but sources differ in ruminal microbial utilization, i.e., cobalt carbonate is poorly water soluble, whereas acetate and lactate forms are water soluble. Reports comparing organic cobalt lactate to other cobalt salts are lacking. The study objective was to determine if feeding cobalt lactate at two inclusion rates resulted in similar growth performance and tissue cobalt concentrations as the carbonate and acetate forms used in feeds. One hundred Angus cross bred steers weighing 385 ± 20 kg were randomly assigned to one of five treatments. Cattle were fed a basal diet plus: 1) cobalt carbonate to supply cobalt at 30 mg/steer/d, 2) cobalt acetate to supply cobalt at 30 mg/steer/d, 3) cobalt acetate to supply cobalt at 60 mg/steer/d, 4) cobalt lactate to supply cobalt at 30 mg/steer/d, and 5) cobalt lactate to supply cobalt at 60 mg/steer/d. Cattle were fed according to industry standards until body fat deposition was visually deemed to grade USDA Choice, which was 92 and 117 d for each of the 2 blocks, respectively. Steers were harvested and carcass measurements recorded along with sampling of adipose, heart, kidney, liver, and muscle for tissue cobalt concentrations. Three statistical contrasts consisted of: 1: inorganic (cobalt carbonate) vs. organic (cobalt acetate and lactate); 2: cobalt acetate vs. cobalt lactate; and 3: feeding rate of 30 vs. 60 mg/steer/d cobalt. Body weight gains, average daily gains, dry matter intake, and feed conversions were similar (P > 0.10) for steers fed all cobalt sources and feeding rates. Hot carcass weight, yield grade, back fat thickness, and ribeye area were similar (P > 0.10) among steers fed all cobalt sources and inclusion rates. Liver, kidney, muscle, and adipose cobalt concentrations were similar (P > 0.08) for steers fed inorganic vs. organic cobalt sources. Feeding cobalt lactate compared with cobalt acetate did not affect (P > 0.10) liver, kidney, heart, muscle, and adipose tissue cobalt concentrations. Feeding 60 mg/steer/d cobalt compared with 30 mg/steer/d increased (P < 0.01) liver, kidney, heart, and adipose tissue cobalt concentrations, while muscle was a tendency (P < 0.06). The study demonstrated that feeding soluble cobalt lactate, a new cobalt source, resulted in similar growth performance, carcass characteristics, and tissue cobalt concentrations when compared with cobalt acetate and carbonate.
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Affiliation(s)
| | | | | | | | - Ty Lawrence
- Beef Carcass Research Center, Department of Agricultural Sciences, West Texas A&M University, Canyon, TX 79016, USA
| | | | - Heb Purvis
- Ralco Animal Nutrition, Marshall, MN 50258, USA
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Liu M, Wei G, Lai Q, Huang Z, Li M, Shao Z. Genomic and metabolic insights into the first host-associated isolate of Psychrilyobacter. Microbiol Spectr 2023; 11:e0399022. [PMID: 37754757 PMCID: PMC10580919 DOI: 10.1128/spectrum.03990-22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 08/11/2023] [Indexed: 09/28/2023] Open
Abstract
Although gut bacteria are vital to their hosts, few studies have focused on marine animals. Psychrilyobacter is frequently related to various marine animals, but its interaction with host remains unknown due to the lack of host-associated isolate or genomic information. Here, we combined cultivation-independent and cultivation-dependent methods to uncover the potential roles of Psychrilyobacter in the host abalone. The high-throughput sequencing and literature compiling results indicated that Psychrilyobacter is widely distributed in marine and terrestrial ecosystems with both host-associated and free-living lifestyles, but with a strong niche preference in the guts of marine invertebrates, especially abalone. By in vitro enrichment that mimicked the gut inner environment, the first host-related pure culture of Psychrilyobacter was isolated from the abalone intestine. Phylogenetic, physiological, and biochemical characterizations suggested that it represents a novel species named Psychrilyobacter haliotis B1. Carbohydrate utilization experiments and genomic evidence indicated that B1 can utilize diverse host-food-related monosaccharides and disaccharides but not polysaccharides, implying its potential role in the downstream fermentation instead of the upstream food degradation in the gut. Particularly, this strain showed potential to colonize the gut and benefit the host via different strategies, such as the short-chain fatty acids generation by fermenting peptides and/or amino acids, and the putative production of diverse vitamins and antibiotics to support the host growth and antipathogenicity. To our knowledge, strain B1 represents the first host-related pure culture of Psychrilyobacter; genomic and metabolic evidence showed some beneficial characteristics of the dominant gut anaerobe to the host. IMPORTANCE Psychrilyobacter is a globally distributed bacterial genus and with an inhabiting preference for guts of marine invertebrates. Due to the difficulty of cultivation and the limited genomic information, its role in host remains largely unknown. We isolated the first host-associated Psychrilyobacter species from abalone gut and uncovered its functional potential to the host through different mechanisms. Our findings provide some insights into the understanding of host-microbe interactions on a core taxon with the marine invertebrates, and the isolate may have an application potential in the protection of marine animals.
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Affiliation(s)
- Meijia Liu
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of the PR China; State Key Laboratory Breeding Base of Marine Genetic Resources; Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
| | - Guangshan Wei
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of the PR China; State Key Laboratory Breeding Base of Marine Genetic Resources; Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-Sen University, Zhuhai, China
| | - Qiliang Lai
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of the PR China; State Key Laboratory Breeding Base of Marine Genetic Resources; Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
| | - Zhaobin Huang
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of the PR China; State Key Laboratory Breeding Base of Marine Genetic Resources; Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
| | - Min Li
- College of Ocean and Earth Sciences, Xiamen University, Xiamen, China
| | - Zongze Shao
- Key Laboratory of Marine Biogenetic Resources, Third Institute of Oceanography, Ministry of Natural Resources of the PR China; State Key Laboratory Breeding Base of Marine Genetic Resources; Fujian Key Laboratory of Marine Genetic Resources, Xiamen, China
- Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), School of Marine Sciences, Sun Yat-Sen University, Zhuhai, China
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20
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Gomes Soares M, Bevilaqua GC, Marcondes Tassi ÉM, Reolon Schmidt VC. Fermented foods and beverages: a potential in situ vitamin B12 biofortification - a literature review. Int J Food Sci Nutr 2023; 74:655-667. [PMID: 37612883 DOI: 10.1080/09637486.2023.2248422] [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: 05/22/2023] [Revised: 08/04/2023] [Accepted: 08/11/2023] [Indexed: 08/25/2023]
Abstract
Millions of dollars have been increasingly spent on plant-based diets. Considering that vitamin B12 is obtained from the consumption of animal-derived foods, new sources of vitamin B12 and methods of food fortification are being eagerly sought. Therefore, this work aims to evaluate advances in situ fermentation processes of food and beverages produced on a large scale and industrial applications for obtaining cobalamin-rich products. Bibliometric analysis was performed and revealed that several studies report a great capacity for in situ biofortification of B12 in foods, mostly on the use of propionic (PB) and lactic (LAB) bacteria. In this context, market potentials for such products, the main microorganisms, including simultaneous cultures, and their respective applications have been presented herein. Although knowledge on potential applications is still limited, field research has been increasingly conducted, thus revealing scientific and technological opportunities, both for the production and the stability of B12 found in plant-based foods.
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Affiliation(s)
- Marcelo Gomes Soares
- Department of Food Engineering, University of Campinas (UNICAMP), Campinas, SP, Brazil
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21
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Ribeiro M, Maciel C, Cruz P, Darmancier H, Nogueira T, Costa M, Laranjeira J, Morais RMSC, Teixeira P. Exploiting Potential Probiotic Lactic Acid Bacteria Isolated from Chlorella vulgaris Photobioreactors as Promising Vitamin B12 Producers. Foods 2023; 12:3277. [PMID: 37685210 PMCID: PMC10486965 DOI: 10.3390/foods12173277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 08/16/2023] [Accepted: 08/25/2023] [Indexed: 09/10/2023] Open
Abstract
Lactic acid bacteria (LAB) have been documented as potential vitamin B12 producers and may constitute an exogenous source of cobalamin for the microalga Chlorella vulgaris, which has been described as being able to perform vitamin uptake. Hence, there is an interest in discovering novel B12-producing probiotic LAB. Therefore, the purpose of the current work was to perform a phenotype-genotype analysis of the vitamin B12 biosynthesis capacity of LAB isolated from C. vulgaris bioreactors, and investigate their probiotic potential. Among the selected strains, Lactococcus lactis E32, Levilactobacillus brevis G31, and Pediococcus pentosaceus L51 demonstrated vitamin B12 biosynthesis capacity, with the latter producing the highest (28.19 ± 2.27 pg mL-1). The genomic analysis confirmed the presence of pivotal genes involved in different steps of the biosynthetic pathway (hemL, cbiT, cobC, and cobD). Notably, P. pentosaceus L51 was the only strain harboring cobA, pduU, and pduV genes, which may provide evidence for the presence of the cobalamin operon. All strains demonstrated the capability to withstand harsh gastrointestinal conditions, although P. pentosaceus L51 was more resilient. The potential for de novo cobalamin biosynthesis and remarkable probiotic features highlighted that P. pentosaceus L51 may be considered the most promising candidate strain for developing high-content vitamin B12 formulations.
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Affiliation(s)
- Mónica Ribeiro
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal (R.M.S.C.M.)
| | - Cláudia Maciel
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal (R.M.S.C.M.)
| | - Pedro Cruz
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal (R.M.S.C.M.)
| | - Helena Darmancier
- INIAV—Instituto Nacional de Investigação Agrária e Veterinária, I.P., 2780-159 Oeiras, Portugal
| | - Teresa Nogueira
- INIAV—Instituto Nacional de Investigação Agrária e Veterinária, I.P., 2780-159 Oeiras, Portugal
- cE3c—Center for Ecology, Evolution and Environmental Changes & CHANGE—Global Change and Sustainability Institute, 1749-016 Lisbon, Portugal
| | - Margarida Costa
- ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal
| | - Joana Laranjeira
- ALLMICROALGAE Natural Products S.A., R&D Department, Rua 25 de Abril s/n, 2445-413 Pataias, Portugal
| | - Rui M. S. C. Morais
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal (R.M.S.C.M.)
| | - Paula Teixeira
- CBQF—Centro de Biotecnologia e Química Fina—Laboratório Associado, Escola Superior de Biotecnologia, Universidade Católica Portuguesa, Rua Diogo Botelho 1327, 4169-005 Porto, Portugal (R.M.S.C.M.)
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22
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Padonou SW, Houngbédji M, Hounhouigan MH, Chadare FJ, Hounhouigan DJ. B-vitamins and heat processed fermented starchy and vegetable foods in sub-Saharan Africa: A review. J Food Sci 2023; 88:3155-3188. [PMID: 37458298 DOI: 10.1111/1750-3841.16697] [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: 02/08/2023] [Revised: 06/11/2023] [Accepted: 06/24/2023] [Indexed: 08/05/2023]
Abstract
Micronutrient deficiency still occurs in sub-Saharan Africa (SSA) despite the availability of several food resources, particularly fermented foods and vegetables, with high nutritional potential. Fermentation enhances the quality of food in several aspects. Organoleptically, certain taste, aroma, and textures are developed. Health and safety are improved by inhibiting the growth of several foodborne pathogens and removing harmful toxic compounds. Furthermore, nutrition is enhanced by improving micronutrient contents and bioavailability from the food, especially vitamin B content. However, during processing and before final consumption, many fermented foods are heat treated (drying, pasteurization, cooking, etc.) to make the food digestible and safe for consumption. Heat treatment improves the bioavailability of B-vitamins in some foods. In other foods, heating decreases the nutritional value because some B-vitamins are degraded. In SSA, cooked starchy foods are often associated with vegetables in household meals. This paper reviews studies that have focused fermented starchy foods and vegetable foods in SSA with the potential to provide B-vitamins to consumers. The review also describes the process of the preparation of these foods for final consumption, and techniques that can prevent or lessen B-vitamin loss, or enrich B-vitamins prior to consumption.
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Affiliation(s)
- Sègla Wilfrid Padonou
- Laboratoire de Sciences et Technologie des Aliments, des Bioressources et de Nutrition Humaine, Université Nationale d'Agriculture, Sakété, Bénin
- Laboratoire de Sciences et Technologie des Aliments, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Jéricho, Bénin
| | - Marcel Houngbédji
- Laboratoire de Sciences et Technologie des Aliments, des Bioressources et de Nutrition Humaine, Université Nationale d'Agriculture, Sakété, Bénin
- Laboratoire de Sciences et Technologie des Aliments, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Jéricho, Bénin
| | - Mênouwesso Harold Hounhouigan
- Laboratoire de Sciences et Technologie des Aliments, des Bioressources et de Nutrition Humaine, Université Nationale d'Agriculture, Sakété, Bénin
- Laboratoire de Sciences et Technologie des Aliments, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Jéricho, Bénin
| | - Flora Josiane Chadare
- Laboratoire de Sciences et Technologie des Aliments, des Bioressources et de Nutrition Humaine, Université Nationale d'Agriculture, Sakété, Bénin
- Laboratoire de Sciences et Technologie des Aliments, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Jéricho, Bénin
| | - Djidjoho Joseph Hounhouigan
- Laboratoire de Sciences et Technologie des Aliments, Faculté des Sciences Agronomiques, Université d'Abomey-Calavi, Jéricho, Bénin
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23
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Neto NAS, Aguiar TKB, Costa RJP, Mesquita FP, Oliveira LLBD, Moraes MEAD, Montenegro RC, Carneiro RF, Nagano CS, Freitas CDT, Souza PFN. United we stand, divided we fall: in-depth proteomic evaluation of the synergistic effect of Mo-CBP 3-PepI and Ciprofloxacin against Staphylococcus aureus biofilms. BIOFOULING 2023; 39:838-852. [PMID: 37955278 DOI: 10.1080/08927014.2023.2279992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Accepted: 10/25/2023] [Indexed: 11/14/2023]
Abstract
Staphylococcus aureus forms biofilms, a structure that protects bacterial cells, conferring more resistance to difficult treatment. Synthetic peptides surge as an alternative to overcome the biofilm of multidrug-resistant pathogens. Mo-CBP3-PepI, when combined with Ciprofloxacin, reduced preformed S. aureus biofilm by 50% at low concentrations (0.2 and 6.2 μg. mL-1, respectively). The goal of this study was to evaluate the proteomic profile of biofilms after treatment with the Mo-CBP3-PepI combined with ciprofloxacin. Here, proteomic analysis confirmed with more depth previously described mechanisms and revealed changes in the accumulation of proteins related to DNA and protein metabolism, cell wall biosynthesis, redox metabolism, quorum sensing, and biofilm formation. Some proteins related to DNA and protein metabolism were reduced, while other proteins, like redox system proteins, disappeared in Ciprofloxacin+Mo-CBP3-PepI treatment. Our results indicated a synergistic effect of these two molecules with several mechanisms against S. aureus biofilm and opened new doors for combined treatments with other drugs.
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Affiliation(s)
- Nilton A S Neto
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Tawanny K B Aguiar
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Rayara J P Costa
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Felipe P Mesquita
- Drug Research and Development Center, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Lais L B de Oliveira
- Drug Research and Development Center, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Maria E A de Moraes
- Drug Research and Development Center, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Raquel C Montenegro
- Drug Research and Development Center, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Rômulo F Carneiro
- Department of Fisheries Engineering, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Celso S Nagano
- Department of Fisheries Engineering, Federal University of Ceará (UFC), Fortaleza, CE, Brazil
| | - Cleverson D T Freitas
- Department of Biochemistry and Molecular Biology, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Pedro F N Souza
- Drug Research and Development Center, Department of Physiology and Pharmacology, Federal University of Ceará, Fortaleza, CE, Brazil
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Coronas R, Zara G, Gallo A, Rocchetti G, Lapris M, Petretto GL, Zara S, Fancello F, Mannazzu I. Propionibacteria as promising tools for the production of pro-bioactive scotta: a proof-of-concept study. Front Microbiol 2023; 14:1223741. [PMID: 37588883 PMCID: PMC10425813 DOI: 10.3389/fmicb.2023.1223741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 07/10/2023] [Indexed: 08/18/2023] Open
Abstract
Dairy propionibacteria are Gram positive Actinomycetota, routinely utilized as starters in Swiss type cheese making and highly appreciated for their probiotic properties and health promoting effects. In this work, within the frame of a circular economy approach, 47 Propionibacterium and Acidipropionibacterium spp. were isolated from goat cheese and milk, and ewe rumen liquor, and characterized in view of their possible utilization for the production of novel pro-bioactive food and feed on scotta, a lactose rich substrate and one of the main by-products of the dairy industry. The evaluation of the Minimum Inhibitory Concentration (MIC) of 13 among the most common antibiotics in clinical practice revealed a general susceptibility to ampicillin, gentamycin, streptomycin, vancomycin, chloramphenicol, and clindamycin while confirming a lower susceptibility to aminoglycosides and ciprofloxacin. Twenty-five isolates, that proved capable of lactose utilization as the sole carbon source, were then characterized for functional and biotechnological properties. Four of them, ascribed to Propionibacterium freudenreichii species, and harboring resistance to bile salts (growth at 0.7-1.56 mM of unconjugated bile salts), acid stress (>80% survival after 1 h at pH 2), osmostress (growth at up to 6.5% NaCl) and lyophilization (survival rate > 80%), were selected and inoculated in scotta. On this substrate the four isolates reached cell densities ranging from 8.11 ± 0.14 to 9.45 ± 0.06 Log CFU mL-1 and proved capable of producing different vitamin B9 vitamers after 72 h incubation at 30°C. In addition, the semi-quantitative analysis following the metabolomics profiling revealed a total production of cobalamin derivatives (vitamin B12) in the range 0.49-1.31 mg L-1, thus suggesting a full activity of the corresponding biosynthetic pathways, likely involving a complex interplay between folate cycle and methylation cycle required in vitamin B12 biosynthesis. These isolates appear interesting candidates for further ad-hoc investigation regarding the production of pro-bioactive scotta.
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Affiliation(s)
- Roberta Coronas
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
| | - Giacomo Zara
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
| | - Antonio Gallo
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Gabriele Rocchetti
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | - Marco Lapris
- Department of Animal Science, Food and Nutrition (DIANA), Faculty of Agricultural, Food and Environmental Sciences, Università Cattolica del Sacro Cuore, Piacenza, Italy
| | | | - Severino Zara
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
| | - Francesco Fancello
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
| | - Ilaria Mannazzu
- Department of Agricultural Sciences, University of Sassari, Sassari, Italy
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25
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Yamamoto A, Seki M, Koseki K, Yabuta Y, Shimizu K, Arima J, Watanabe F, Bito T. Production and characterization of cyanocobalamin-enriched tomato (Solanum lycopersicum) fruits grown using hydroponics. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:3685-3690. [PMID: 36321533 DOI: 10.1002/jsfa.12297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2022] [Revised: 10/03/2022] [Accepted: 11/02/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Vitamin B12 is an essential vitamin that is absent in plant-derived foods such as fruits and vegetables. This can result in an increased risk of developing vitamin B12 deficiency in strict vegetarians (vegans). There are several studies that have aimed to enhance nutrients in food crops. The purpose of the present study was to fortify tomato fruits with vitamin B12 (or cyanocobalamin). RESULTS Tomato plants were grown for 70 days in hydroponic culture pots and treated with 5 μm of cyanocobalamin on days 1-24 after the fruiting, and then harvested for tomato fruits. The ripened tomato fruits contained 4.0 × 10-7 g of cyanocobalamin per 100 g of dry weight and showed a significant increase in glucose and lycopene levels. CONCLUSION The present study highlights the use of a cyanocobalamin-supplementation system for the production of B12 fortified tomato fruits that can help prevent B12 deficiency in vegetarians. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Aoi Yamamoto
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
| | - Mahiro Seki
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
| | - Kyohei Koseki
- The United Graduate School of Agricultural Sciences and Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Yukinori Yabuta
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
- The United Graduate School of Agricultural Sciences and Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Katsuhiko Shimizu
- Platform for Community-based Research and Education, Tottori University, Tottori, Japan
| | - Jiro Arima
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
- The United Graduate School of Agricultural Sciences and Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Fumio Watanabe
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
- The United Graduate School of Agricultural Sciences and Faculty of Agriculture, Tottori University, Tottori, Japan
| | - Tomohiro Bito
- Department of Agricultural Science, Graduate School of Sustainability Science, Tottori University, Tottori, Japan
- The United Graduate School of Agricultural Sciences and Faculty of Agriculture, Tottori University, Tottori, Japan
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26
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Wu HHL, McDonnell T, Chinnadurai R. Physiological Associations between Vitamin B Deficiency and Diabetic Kidney Disease. Biomedicines 2023; 11:biomedicines11041153. [PMID: 37189771 DOI: 10.3390/biomedicines11041153] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 03/24/2023] [Accepted: 04/10/2023] [Indexed: 05/17/2023] Open
Abstract
The number of people living with chronic kidney disease (CKD) is growing as our global population continues to expand. With aging, diabetes, and cardiovascular disease being major harbingers of kidney disease, the number of people diagnosed with diabetic kidney disease (DKD) has grown concurrently. Poor clinical outcomes in DKD could be influenced by an array of factors-inadequate glycemic control, obesity, metabolic acidosis, anemia, cellular senescence, infection and inflammation, cognitive impairment, reduced physical exercise threshold, and, importantly, malnutrition contributing to protein-energy wasting, sarcopenia, and frailty. Amongst the various causes of malnutrition in DKD, the metabolic mechanisms of vitamin B (B1 (Thiamine), B2 (Riboflavin), B3 (Niacin/Nicotinamide), B5 (Pantothenic Acid), B6 (Pyridoxine), B8 (Biotin), B9 (Folate), and B12 (Cobalamin)) deficiency and its clinical impact has garnered greater scientific interest over the past decade. There remains extensive debate on the biochemical intricacies of vitamin B metabolic pathways and how their deficiencies may affect the development of CKD, diabetes, and subsequently DKD, and vice-versa. Our article provides a review of updated evidence on the biochemical and physiological properties of the vitamin B sub-forms in normal states, and how vitamin B deficiency and defects in their metabolic pathways may influence CKD/DKD pathophysiology, and in reverse how CKD/DKD progression may affect vitamin B metabolism. We hope our article increases awareness of vitamin B deficiency in DKD and the complex physiological associations that exist between vitamin B deficiency, diabetes, and CKD. Further research efforts are needed going forward to address the knowledge gaps on this topic.
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Affiliation(s)
- Henry H L Wu
- Renal Research Laboratory, Kolling Institute of Medical Research, Royal North Shore Hospital, The University of Sydney, Sydney, NSW 2065, Australia
| | - Thomas McDonnell
- Department of Renal Medicine, Northern Care Alliance NHS Foundation Trust, Salford M6 8HD, UK
| | - Rajkumar Chinnadurai
- Department of Renal Medicine, Northern Care Alliance NHS Foundation Trust, Salford M6 8HD, UK
- Faculty of Biology, Medicine & Health, The University of Manchester, Manchester M1 7HR, UK
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27
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Kumar R, Singh U, Tiwari A, Tiwari P, Sahu JK, Sharma S. Vitamin B12: Strategies for enhanced production, fortified functional food products and health benefits. Process Biochem 2023. [DOI: 10.1016/j.procbio.2023.02.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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Fagbohun OF, Gillies CR, Murphy KPJ, Rupasinghe HPV. Role of Antioxidant Vitamins and Other Micronutrients on Regulations of Specific Genes and Signaling Pathways in the Prevention and Treatment of Cancer. Int J Mol Sci 2023; 24:ijms24076092. [PMID: 37047063 PMCID: PMC10093825 DOI: 10.3390/ijms24076092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 04/14/2023] Open
Abstract
Cancer is an escalating global issue, with 19.3 million new cases and 9.9 million deaths in 2020. Therefore, effective approaches to prevent cancer are urgently required. Diet plays a significant role in determining cancer risk. Nutrients and food bioactives influence specific signaling pathways in the body. Recently, there have been significant advances in cancer prevention research through nutrigenomics or with the effects of dietary components on the genome. Google Scholar, PubMed, and Scopus databases were used to search for peer-reviewed articles between 2017 and 2023. Criteria used were vitamins, minerals, tumors, cancer, genes, inflammation, signaling pathways, and nutrigenomics. Among the total of 1857 articles available, the highest relevant 90 articles that specifically discussed signaling pathways and genes on cancer cell lines and human cancer patients were selected and reviewed. Food sources are rich in antioxidant micronutrients, which are effective in activating or regulating signaling pathways involved in pathogenesis and cancer therapy by activating enzymes such as mitogen-activated protein kinase (MAPK), protein kinase C (PKC), and phosphatidylinositol 3-kinase (PI3K). The micronutrients are involved in the regulation of β-catenin (WNT/β-catenin) including mutations in Kras and epidermal growth factor receptor (EGFR) alongside inhibition of the NF-kB pathway. The most common mechanism of cancer prevention by these micronutrients is their antioxidative, anti-inflammation, and anti-apoptosis effects. This review discusses how nutrigenomics is essential and beneficial for developing cancer prevention and treatment approaches.
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Affiliation(s)
- Oladapo F Fagbohun
- Department Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 2R8, Canada
| | - Caroline R Gillies
- Department of Animal Science and Aquaculture, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 2R8, Canada
| | - Kieran P J Murphy
- Department of Medical Imaging, Faculty of Medicine, University of Toronto, Toronto, ON M5T 2S8, Canada
| | - H P Vasantha Rupasinghe
- Department Plant, Food, and Environmental Sciences, Faculty of Agriculture, Dalhousie University, Truro, NS B2N 2R8, Canada
- Department of Pathology, Faculty of Medicine, Dalhousie University, Halifax, NS B3H 4R2, Canada
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Fuschlberger M, Putz P. Vitamin B12 supplementation and health behavior of Austrian vegans: a cross-sectional online survey. Sci Rep 2023; 13:3983. [PMID: 36949098 PMCID: PMC10033911 DOI: 10.1038/s41598-023-30843-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 03/02/2023] [Indexed: 03/24/2023] Open
Abstract
The number of vegans is increasing and was estimated at 2.0% of the Austrian population. Austrian vegans were found to have lower intakes and levels of vitamin B12 compared to vegetarians and omnivores. Vegans are advised to consume reliable sources of vitamin B12, e.g., in the form of dietary supplements or fortified foods. This study aimed to investigate health and supplementation behavior, with special emphasis on the supplementation of vitamin B12, and to demographically characterize the community of Austrian adult vegans. A nonrandom, voluntary sample of adult vegans with a principal residence in Austria was recruited with an online cross-sectional survey via social media and messenger platforms. Associations between respondent characteristics (gender, education, nutritional advice by a dietitian or nutritionist) and health/supplementation behaviors were examined by cross-tabulation. The questionnaire was completed by 1565 vegans (completion rate 88%), of whom 86% were female, the median age was 29 years, 6% were obese, and 49% had completed an academic education. Ninety-two percent consumed vitamin B12 through supplements and/or fortified foods, and 76% had their vitamin B12 status checked. The prevalence of vitamin B12 intake through supplements and/or fortified foods was slightly (not statistically significant) higher among women vs. men (93% vs. 89%), those who were academically educated vs. those who were not (93% vs. 91%), and those who had taken nutritional advice vs. those who had not (97% vs. 92%). Professional nutritional advice had been taken by only 9.5% of female and 8.4% of male respondents. Those who had taken advice reported a lower smoking prevalence (p = 0.05, φ = 0.05), higher prevalence of checking vitamin B12 status (p < 0.01, φ = 0.10), vit B12 intake through supplements and/or fortified foods (p = 0.03, φ = 0.05), and taking supplements of omega-3 (p < 0.01, φ = 0.14), selenium (p = 0.02, φ = 0.06), and iodine (p = 0.02, φ = 0.06). Austrian vegans can be characterized as predominantly young, female, urban, highly educated, and nonobese. The rate of vitamin B12 intake through supplements and/or fortified foods is fairly high (92%), but should be further improved e.g., by increasing the share of vegans who follow professional nutritional advice (requiring a diploma in dietetics, nutritional science, or medicine in Austria).
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Affiliation(s)
- Michelle Fuschlberger
- FH Campus Wien University of Applied Sciences, Favoritenstrasse 226, 1100, Vienna, Austria
| | - Peter Putz
- FH Campus Wien University of Applied Sciences, Favoritenstrasse 226, 1100, Vienna, Austria.
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Boushaba S, Helis Y, Lebaal R, Beldjebel S, Benhamza A, Ziti C, Belaaloui G. The relationship of sperm DNA integrity with serum vitamin levels (folate and cobalamin) and food consumption in infertile men. Clin Exp Reprod Med 2023; 50:53-62. [PMID: 36935412 PMCID: PMC10030204 DOI: 10.5653/cerm.2022.05736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 01/05/2023] [Indexed: 02/16/2023] Open
Abstract
OBJECTIVE The aim of this study was to investigate the relationships of serum folate (vitamin B9), cobalamin (vitamin B12) levels and diet with semen parameters (semen standard parameters [SSP] and DNA fragmentation index [DFI]) in infertile men. METHODS Sperm samples were assessed for SSP and DFI (using the sperm chromatin dispersion test). Serum vitamin concentrations were measured with an immuno-electrochemiluminescence assay, and men completed a semi-quantitative food frequency questionnaire (FFQ). RESULTS Serum folate levels were positively correlated with sperm progressive motility and DFI. A comparison of SSP between two groups of patients according to serum folate concentration (B9 <4.840 ng/mL and B9 ≥4.840 ng/mL) showed significantly higher sperm concentration and sperm progressive motility in the latter group. However, there was no difference between these groups regarding DFI. Interestingly, serum folate levels were significantly higher in patients with a high DFI (using the cut-offs of 30% or 18%). FFQ data showed that the consumption of fruits and egg yolk correlated positively with sperm concentration and sperm motility, respectively. CONCLUSION Serum folate levels showed significant associations with sperm concentration and sperm progressive motility. However, the positive association of serum folate with DFI raises the need for careful prescription of folate supplements.
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Affiliation(s)
- Sara Boushaba
- Laboratory of Acquired and Constitutional Genetic Diseases (MAGECA), Faculty of Medicine, Batna 2 University, Batna, Algeria
- Faculty of Nature and Life Sciences, Batna 2 University, Batna, Algeria
| | - Yassine Helis
- Ibn Rochd Laboratory of Medical Analysis, Batna, Algeria
| | - Rachida Lebaal
- Gynecology and Obstetrics Outpatient Clinic, Batna, Algeria
| | | | | | - Chafia Ziti
- Gynecology and Obstetrics Outpatient Clinic, Batna, Algeria
| | - Ghania Belaaloui
- Laboratory of Acquired and Constitutional Genetic Diseases (MAGECA), Faculty of Medicine, Batna 2 University, Batna, Algeria
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Benites-Zapata VA, Ignacio-Cconchoy FL, Ulloque-Badaracco JR, Hernandez-Bustamante EA, Alarcón-Braga EA, Al-kassab-Córdova A, Herrera-Añazco P. Vitamin B12 levels in thyroid disorders: A systematic review and meta-analysis. Front Endocrinol (Lausanne) 2023; 14:1070592. [PMID: 36909313 PMCID: PMC9994182 DOI: 10.3389/fendo.2023.1070592] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 02/08/2023] [Indexed: 02/24/2023] Open
Abstract
Background and aims Numerous studies have found an association between vitamin deficiency and thyroid disorders (TD). The presence of anti-parietal cell antibodies is indicative of reduced ability to absorb vitamin B12. Thus, this study reviewed the existing studies with the objective of assessing differences in the serum levels of vitamin B12 among patients with and without TD, the frequency of vitamin B12 deficiency in patients with TD, and the presence of anti-parietal cell antibodies in patients with TD. Methods A meta-analysis of random-effects model was conducted to calculate pooled frequencies, mean differences (MD), and their respective 95% confidence intervals (CI). We identified 64 studies that met our inclusion criteria (n = 28597). Results We found that patients with hypothyroidism had lower vitamin B12 levels than healthy participants (MD: -60.67 pg/mL; 95% CI: -107.31 to -14.03 pg/mL; p = 0.01). No significant differences in vitamin B12 levels were observed between healthy participants and patients with hyperthyroidism (p = 0.78), autoimmune thyroid disease (AITD) (p = 0.22), or subclinical hypothyroidism (SH) (p = 0.79). The frequencies of vitamin B12 deficiency among patients with hypothyroidism, hyperthyroidism, SH, and AITD were 27%, 6%, 27%, and 18%, respectively. Conclusions Patients with hypothyroidism had lower levels of vitamin B12 than healthy participants. No significant differences were observed between vitamin B12 levels and hyperthyroidism, AITD, or SH. Systematic Review Registration https://www.crd.york.ac.uk/prospero/display_record.php?RecordID=324422, identifier (CRD42022324422).
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Affiliation(s)
- Vicente A. Benites-Zapata
- Doctorado en Nutrición y Alimentos, Universidad San Ignacio de Loyola, Lima, Peru
- Unidad de Investigación para la Generacióny Síntesis de Evidencias en Salud, Vicerrectorado de Investigación, Universidad San Ignacio de Loyola, Lima, Peru
| | | | | | - Enrique A. Hernandez-Bustamante
- Sociedad Científica de Estudiantes de Medicina de la Universidad Nacional de Trujillo, Trujillo, Peru
- Grupo Peruano de Investigación Epidemiológica, Unidad para la Generación y Síntesis de Evidencias en Salud, Universidad San Ignacio de Loyola, Lima, Peru
| | - Esteban A. Alarcón-Braga
- Escuela de Medicina, Universidad Peruana de Ciencias Aplicadas, Lima, Peru
- Sociedad Científica de Estudiantes de Medicina de la Universidad Peruana de Ciencias Aplicadas, Lima, Peru
| | - Ali Al-kassab-Córdova
- Centro de Excelencia en Investigaciones Económicas y Sociales en Salud, Universidad San Ignacio de Loyola, Lima, Peru
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Zheng J, Wu F, Wang F, Cheng J, Zou H, Li Y, Du J, Kan J. Biomarkers of Micronutrients and Phytonutrients and Their Application in Epidemiological Studies. Nutrients 2023; 15:nu15040970. [PMID: 36839326 PMCID: PMC9959711 DOI: 10.3390/nu15040970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/21/2023] [Accepted: 02/08/2023] [Indexed: 02/17/2023] Open
Abstract
Nutritional biomarkers can be used as important indicators of nutritional status and play crucial roles in the prevention as well as prognosis optimization of various metabolism-related diseases. Measuring dietary with the deployment of biomarker assessments provides quantitative nutritional information that can better predict the health outcomes. With the increased availability of nutritional biomarkers and the development of assessment tools, the specificity and sensitivity of nutritional biomarkers have been greatly improved. This enables efficient disease surveillance in nutrition research. A wide range of biomarkers have been used in different types of studies, including clinical trials, observational studies, and qualitative studies, to reflect the relationship between diet and health. Through a comprehensive literature search, we reviewed the well-established nutritional biomarkers of vitamins, minerals, and phytonutrients, and their association with epidemiological studies, to better understand the role of nutrition in health and disease.
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Affiliation(s)
- Jianheng Zheng
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
| | - Feng Wu
- Sequanta Technologies Co., Ltd., 240 Hedan Road, Shanghai 200131, China
| | - Feijie Wang
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
| | - Junrui Cheng
- Department of Molecular and Structural Biochemistry, North Carolina State University, Raleigh, NC 27695, USA
| | - Hong Zou
- Sequanta Technologies Co., Ltd., 240 Hedan Road, Shanghai 200131, China
| | - Yuan Li
- Sequanta Technologies Co., Ltd., 240 Hedan Road, Shanghai 200131, China
| | - Jun Du
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
| | - Juntao Kan
- Nutrilite Health Institute, 720 Cailun Road, Shanghai 201203, China
- Correspondence: ; Tel.: +86-21-2305-6982
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Forgie AJ, Pepin DM, Ju T, Tollenaar S, Sergi CM, Gruenheid S, Willing BP. Over supplementation with vitamin B12 alters microbe-host interactions in the gut leading to accelerated Citrobacter rodentium colonization and pathogenesis in mice. MICROBIOME 2023; 11:21. [PMID: 36737826 PMCID: PMC9896722 DOI: 10.1186/s40168-023-01461-w] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2022] [Accepted: 01/04/2023] [Indexed: 05/29/2023]
Abstract
BACKGROUND Vitamin B12 supplements typically contain doses that far exceed the recommended daily amount, and high exposures are generally considered safe. Competitive and syntrophic interactions for B12 exist between microbes in the gut. Yet, to what extent excessive levels contribute to the activities of the gut microbiota remains unclear. The objective of this study was to evaluate the effect of B12 on microbial ecology using a B12 supplemented mouse model with Citrobacter rodentium, a mouse-specific pathogen. Mice were fed a standard chow diet and received either water or water supplemented with B12 (cyanocobalamin: ~120 μg/day), which equates to approximately 25 mg in humans. Infection severity was determined by body weight, pathogen load, and histopathologic scoring. Host biomarkers of inflammation were assessed in the colon before and after the pathogen challenge. RESULTS Cyanocobalamin supplementation enhanced pathogen colonization at day 1 (P < 0.05) and day 3 (P < 0.01) postinfection. The impact of B12 on gut microbial communities, although minor, was distinct and attributed to the changes in the Lachnospiraceae populations and reduced alpha diversity. Cyanocobalamin treatment disrupted the activity of the low-abundance community members of the gut microbiota. It enhanced the amount of interleukin-12 p40 subunit protein (IL12/23p40; P < 0.001) and interleukin-17a (IL-17A; P < 0.05) in the colon of naïve mice. This immune phenotype was microbe dependent, and the response varied based on the baseline microbiota. The cecal metatranscriptome revealed that excessive cyanocobalamin decreased the expression of glucose utilizing genes by C. rodentium, a metabolic attribute previously associated with pathogen virulence. CONCLUSIONS Oral vitamin B12 supplementation promoted C. rodentium colonization in mice by altering the activities of the Lachnospiraceae populations in the gut. A lower abundance of select Lachnospiraceae species correlated to higher p40 subunit levels, while the detection of Parasutterella exacerbated inflammatory markers in the colon of naïve mice. The B12-induced change in gut ecology enhanced the ability of C. rodentium colonization by impacting key microbe-host interactions that help with pathogen exclusion. This research provides insight into how B12 impacts the gut microbiota and highlights potential consequences of disrupting microbial B12 competition/sharing through over-supplementation. Video Abstract.
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Affiliation(s)
- Andrew J Forgie
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, T6G 2P5, Canada
| | - Deanna M Pepin
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, T6G 2P5, Canada
| | - Tingting Ju
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, T6G 2P5, Canada
| | - Stephanie Tollenaar
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, T6G 2P5, Canada
| | - Consolato M Sergi
- Division of Anatomic Pathology, Children's Hospital of Eastern Ontario (CHEO), Ottawa, Ontario, Canada
| | - Samantha Gruenheid
- Faculty of Medicine and Health Sciences, McGill University, Montreal, Quebec, Canada
| | - Benjamin P Willing
- Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, T6G 2P5, Canada.
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Ceribeli C, Otte J, Walkling-Ribeiro M, Cardoso DR, Ahrné LM. Impact of non-thermal pasteurization technologies on vitamin B12 content in milk. INNOV FOOD SCI EMERG 2023. [DOI: 10.1016/j.ifset.2023.103303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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Are We What We Eat? The Moral Imperative of the Medical Profession to Promote Plant-Based Nutrition. Am J Cardiol 2023; 188:15-21. [PMID: 36446227 DOI: 10.1016/j.amjcard.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 08/31/2022] [Accepted: 10/03/2022] [Indexed: 11/29/2022]
Abstract
The typical Western diet, high in processed and animal-based foods, is nutritionally and ethically problematic. Beyond the well-documented cruelty to animals that characterizes the practices of the factory-farming industry, current patterns of meat consumption contribute to medical and moral harm in humans on both an individual level and a public health scale. We aim to deconstruct, by highlighting their fallacies, the common positive and normative arguments that are used to defend current nutritional patterns. Animal-based foods promote the mechanisms that underlie chronic cardiometabolic disease, whereas whole-food plant-based nutrition can reverse them. Factory farming of animals also contributes to climate change, antibiotic resistance, and the spread of infectious diseases. Finally, the current allocation of nutritional resources in the United States is unjust. A societal shift toward more whole-food plant-based patterns of eating stands to provide significant health benefits and ethical advantages, and the medical profession has a duty to advocate accordingly. Although it remains important for individuals to make better food choices to promote their own health, personal responsibility is predicated on sound advice and on resource equity, including the availability of healthy options. Nutrition equity is a moral imperative and should be a top priority in the promotion of public health.
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Mathew AR, Cavallucci V, Fidaleo M. Altered vitamin B12 metabolism in the central nervous system is associated with the modification of ribosomal gene expression: new insights from comparative RNA dataset analysis. Funct Integr Genomics 2023; 23:45. [PMID: 36683116 PMCID: PMC9868042 DOI: 10.1007/s10142-023-00969-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/24/2023]
Abstract
Recent studies have confirmed the direct role of vitamin B12 (VitB12) in the central nervous system (CNS) homeostasis; nevertheless, the detailed mechanisms are poorly understood. By analyzing RNA-Seq and microarray datasets obtained from databanks, this study aims to identify possible basic mechanisms, related to the brain, involved in altering the gene expression under VitB12 deficiency mimicking conditions. The database inquiry returned datasets generated from distinctly heterogeneous experimental sets and considering the quality and relevance requirements, two datasets from mouse and one from rat models were selected. The analyses of individual datasets highlighted a change in ribosomal gene expression in VitB12 deficiency mimicking conditions within each system. Specifically, a divergent regulation was observed depending on the animal model: mice showed a down regulation of the ribosomal gene expression, while rats an upregulation. Interestingly, E2f1 was significantly upregulated under VitB12 deficiency mimicking conditions in the animal models, with a greater upregulation in rats. The rat model also revealed putative E2F1 Transcription Factor Binding Sites (TFBSs) in the promoter of the differently regulated genes involved in ribosomal gene expression. This suggested the possibility that E2F1, being greater expressed in rats, could activate the ribosomal genes having E2F1 TFBSs, thus giving a plausible explication to the divergent regulation observed in animal models. Despite the great diversity of the experimental sets used to generate the datasets considered, a common alteration of the ribosomes exists, thereby indicating a possible basic and conserved response to VitB12 deficiency. Moreover, these findings could provide new insights on E2F1 and its association with CNS homeostasis and VitB12 deficiency.
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Affiliation(s)
- Aimee Rachel Mathew
- Department of Biology and Biotechnology Charles Darwin, University of Rome Sapienza, 00185, Rome, Italy
| | - Virve Cavallucci
- Fondazione Policlinico Universitario A. Gemelli IRCCS, 00168, Rome, Italy.,Institute of General Pathology, Università Cattolica del Sacro Cuore, 00168, Rome, Italy
| | - Marco Fidaleo
- Department of Biology and Biotechnology Charles Darwin, University of Rome Sapienza, 00185, Rome, Italy. .,Research Center for Nanotechnology for Engineering of Sapienza (CNIS), University of Rome Sapienza, 00185, Rome, Italy.
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Temova Rakuša Ž, Roškar R, Hickey N, Geremia S. Vitamin B 12 in Foods, Food Supplements, and Medicines-A Review of Its Role and Properties with a Focus on Its Stability. MOLECULES (BASEL, SWITZERLAND) 2022; 28:molecules28010240. [PMID: 36615431 PMCID: PMC9822362 DOI: 10.3390/molecules28010240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 12/21/2022] [Accepted: 12/22/2022] [Indexed: 12/29/2022]
Abstract
Vitamin B12, also known as the anti-pernicious anemia factor, is an essential micronutrient totally dependent on dietary sources that is commonly integrated with food supplements. Four vitamin B12 forms-cyanocobalamin, hydroxocobalamin, 5'-deoxyadenosylcobalamin, and methylcobalamin-are currently used for supplementation and, here, we provide an overview of their biochemical role, bioavailability, and efficacy in different dosage forms. Since the effective quantity of vitamin B12 depends on the stability of the different forms, we further provide a review of their main reactivity and stability under exposure to various environmental factors (e.g., temperature, pH, light) and the presence of some typical interacting compounds (oxidants, reductants, and other water-soluble vitamins). Further, we explore how the manufacturing process and storage affect B12 stability in foods, food supplements, and medicines and provide a summary of the data published to date on the content-related quality of vitamin B12 products on the market. We also provide an overview of the approaches toward their stabilization, including minimization of the destabilizing factors, addition of proper stabilizers, or application of some (innovative) technological processes that could be implemented and contribute to the production of high-quality vitamin B12 products.
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Affiliation(s)
| | - Robert Roškar
- Faculty of Pharmacy, University of Ljubljana, 1000 Ljubljana, Slovenia
| | - Neal Hickey
- Department of Chemical and Pharmaceutical Sciences, Centre of Excellence in Biocrystallography, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Silvano Geremia
- Department of Chemical and Pharmaceutical Sciences, Centre of Excellence in Biocrystallography, University of Trieste, Via L. Giorgieri 1, 34127 Trieste, Italy
- Correspondence:
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Hallberg ZF, Seth EC, Thevasundaram K, Taga ME. Comparative Analysis of Corrinoid Profiles across Host-Associated and Environmental Samples. Biochemistry 2022; 61:2791-2796. [PMID: 36037062 DOI: 10.1021/acs.biochem.2c00367] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Vitamin B12 (the cyanated form of cobalamin cofactors) is best known for its essential role in human health. In addition to its function in human metabolism, cobalamin also plays important roles in microbial metabolism and can impact microbial community function. Cobalamin is a member of the structurally diverse family of cofactors known as cobamides that are produced exclusively by certain prokaryotes. Cobamides are considered shared nutrients in microbial communities because the majority of bacteria that possess cobamide-dependent enzymes cannot synthesize cobamides de novo. Furthermore, different microbes have evolved metabolic specificity for particular cobamides, and therefore, the availability of cobamides in the environment is important for cobamide-dependent microbes. Determining the cobamides present in an environment of interest is essential for understanding microbial metabolic interactions. By examining the abundances of different cobamides in diverse environments, including 10 obtained in this study, we find that, contrary to its preeminence in human metabolism, cobalamin is relatively rare in many microbial habitats. Comparison of cobamide profiles of mammalian gastrointestinal samples and wood-feeding insects reveals that host-associated cobamide abundances vary and that fecal cobamide profiles differ from those of their host gastrointestinal tracts. Environmental cobamide profiles obtained from aquatic, soil, and contaminated groundwater samples reveal that the cobamide compositions of environmental samples are highly variable. As the only commercially available cobamide, cobalamin is routinely supplied during microbial culturing efforts. However, these findings suggest that cobamides specific to a given microbiome may yield greater insight into nutrient utilization and physiological processes that occur in these habitats.
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Affiliation(s)
- Zachary F Hallberg
- Department of Plant & Microbial Biology, University of California, Berkeley, Berkeley, California 94720, United States
| | - Erica C Seth
- Department of Plant & Microbial Biology, University of California, Berkeley, Berkeley, California 94720, United States
| | - Kersh Thevasundaram
- Department of Molecular & Cell Biology, University of California, Berkeley, Berkeley, California 94720, United States
| | - Michiko E Taga
- Department of Plant & Microbial Biology, University of California, Berkeley, Berkeley, California 94720, United States
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Nowosad K, Sujka M, Wyrostek J. Preparation of yeast flakes enriched with iron and vitamin
B
12
using a pulsed electric field technology. J FOOD PROCESS ENG 2022. [DOI: 10.1111/jfpe.14245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Karolina Nowosad
- Department of Biotechnology, Microbiology and Human Nutrition, Faculty of Food Sciences and Biotechnology University of Life Sciences in Lublin Lublin Poland
| | - Monika Sujka
- Department of Analysis and Evaluation of Food Quality, Faculty of Food Sciences and Biotechnology University of Life Sciences in Lublin Lublin Poland
| | - Jakub Wyrostek
- Department of Analysis and Evaluation of Food Quality, Faculty of Food Sciences and Biotechnology University of Life Sciences in Lublin Lublin Poland
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40
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Wan Z, Zheng J, Zhu Z, Sang L, Zhu J, Luo S, Zhao Y, Wang R, Zhang Y, Hao K, Chen L, Du J, Kan J, He H. Intermediate role of gut microbiota in vitamin B nutrition and its influences on human health. Front Nutr 2022; 9:1031502. [PMID: 36583209 PMCID: PMC9792504 DOI: 10.3389/fnut.2022.1031502] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Accepted: 11/28/2022] [Indexed: 12/14/2022] Open
Abstract
Vitamin B consists of a group of water-soluble micronutrients that are mainly derived from the daily diet. They serve as cofactors, mediating multiple metabolic pathways in humans. As an integrated part of human health, gut microbiota could produce, consume, and even compete for vitamin B with the host. The interplay between gut microbiota and the host might be a crucial factor affecting the absorbing processes of vitamin B. On the other hand, vitamin B supplementation or deficiency might impact the growth of specific bacteria, resulting in changes in the composition and function of gut microbiota. Together, the interplay between vitamin B and gut microbiota might systemically contribute to human health. In this review, we summarized the interactions between vitamin B and gut microbiota and tried to reveal the underlying mechanism so that we can have a better understanding of its role in human health.
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Affiliation(s)
- Zhijie Wan
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | | | | | - Lan Sang
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Jinwei Zhu
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Shizheng Luo
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Yixin Zhao
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Ruirui Wang
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Yicui Zhang
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Kun Hao
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China
| | - Liang Chen
- Nutrilite Health Institute, Shanghai, China
| | - Jun Du
- Nutrilite Health Institute, Shanghai, China
| | - Juntao Kan
- Nutrilite Health Institute, Shanghai, China,*Correspondence: Juntao Kan,
| | - Hua He
- Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, China,Hua He,
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Mangiapane P, Carbone MG, Arone A, Massa L, Palermo S, Flamini W, Parra E, Morana B, Morana F, Bertini G, Marazziti D. Vitamin B12, homocysteine, and folic acid in patients suffering from bipolar disorders: Relationship with suicide. World J Biol Psychiatry 2022:1-9. [PMID: 36218029 DOI: 10.1080/15622975.2022.2134589] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
OBJECTIVES Vitamin B12, folic acid, and homocysteine play a key role in 'one-carbon metabolism', involved in different brain processes. Altered levels have been reported in mood disorders (MDs), particularly in major depression (MDD), while the information in bipolar disorders (BDs) is limited. The present study aimed at assessing vitamin B12, homocysteine, and folic acid in 69 bipolar inpatients. METHODS Twenty-seven patients were diagnosed with BDI, 15 BDII, 16 schizoaffective disorders, and 11 MDD, according to DSM-5 criteria. The clinical picture was assessed by the MINI, HRSD, YMRS, and CGI. The blood parameters were measured according to common clinical-chemical methods. RESULTS Thirty-four patients had significantly lower vitamin B12, and 14 higher homocysteine levels than normative values. Folic acid levels were normal in the majority of the sample. Patients with a family history of suicide showed significantly lower levels of vitamin B12. CONCLUSIONS Our results underline the utility of assessing vitamin B12, homocysteine, and folic acid in patients with BD. Although other studies are necessary, the present findings that lower levels of vitamin B12 seem typical of patients with a family history of suicide independently from the phase of illness suggest that they might constitute a possible predictor of suicide.
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Affiliation(s)
| | - Manuel Glauco Carbone
- Division of Psychiatry, Department of Medicine and Surgery, University of Insubria, Varese, Italy
| | - Alessandro Arone
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Lucia Massa
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Stefania Palermo
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Walter Flamini
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | - Elisabetta Parra
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy
| | | | | | | | - Donatella Marazziti
- Department of Clinical and Experimental Medicine, University of Pisa, Pisa, Italy.,Saint Camillus International University of Health and Medical Sciences-UniCamillus, Rome, Italy
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Wafaa H, Magadmi R, Hakami N, Al Sadoun H, Almaghrabi S, Mohammed N, Alrafiah A. Is Vitamin B12 Level a Reliable Predictor of Psychosis Severity in Male Patients with Megaloblastic Anemia at a Single Tertiary Hospital? Int J Gen Med 2022; 15:7657-7668. [PMID: 36217368 PMCID: PMC9547595 DOI: 10.2147/ijgm.s384432] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Accepted: 09/23/2022] [Indexed: 11/06/2022] Open
Abstract
Background Megaloblastic anemia (MA) occurs due to ineffective erythropoiesis, which results from impaired DNA synthesis in the hematopoietic precursors and intramedullary hemolysis. MA’s most common cause is nutritional deficiencies of either cobalamin (vitamin B12) or folate (vitamin B6). This study aims to determine the association between MA caused by vitamin B12 deficiency and psychosis among psychotic male patients in Mental Health Hospital at Taif, Saudi Arabia. Methods Fifty psychotic male patients, aged 48.58±1.72, were recruited from the Mental Health Hospital at Taif, Saudi Arabia, in addition to 54 sex-matched healthy controls. The following tests were run: complete blood count (CBC), liver function tests (LFT), serum levels of vitamin B12, folate, and C-reactive protein (CRP). Results The CBC showed that RBCs count, haemoglobin, haematocrit, platelets count, mean platelets volume (MPV), and absolute lymphocyte count were significantly lower in psychotic patients versus healthy controls (P=0.007, P=0.002, P=0.001, P=0.004, P=0.0001, and P=0.005, respectively). In contrast, the eosinophil absolute count and basophil percentage were significantly higher in psychotic patients versus controls (P=0.009, P=0.0001, respectively). Vitamin B12 levels were insignificantly decreased in psychotic patients versus healthy group. There were significant negative correlations between serum levels of VitB12 and negative symptoms (r=−0.381, P=0.006) and hallucination (r=−0.297, P=0.036). Conclusion These findings indicate no link between MA induced by VitB12 insufficiency and psychosis among psychotic patients. However, low serum VitB12 can predict the severity of some psychosis signs, including hallucinations and negative symptoms. Therefore, monitoring VitB12 levels and its supplementation in psychotic patients is recommended to improve their symptoms.
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Affiliation(s)
- Hanaa Wafaa
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Rania Magadmi
- Pharmacology Department, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Nora Hakami
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Hadeel Al Sadoun
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Safa Almaghrabi
- Department of Physiology, Medical School, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Nuha Mohammed
- Department of Medical Laboratory, King Faisal Medical Complex, Taif, Saudi Arabia
| | - Aziza Alrafiah
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Science, King Abdulaziz University, Jeddah, Saudi Arabia,Correspondence: Aziza Alrafiah, P.O Box 80200, Jeddah, 21589, Saudi Arabia, Tel +966 0126401000 Ext. 23495, Fax +966 0126401000 Ext. 21686, Email
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Suzuki A, Shirakata C, Anzai H, Sumiyama D, Suzuki M. Vitamin B 12 biosynthesis of Cetobacterium ceti isolated from the intestinal content of captive common bottlenose dolphins ( Tursiops truncatus). MICROBIOLOGY (READING, ENGLAND) 2022; 168. [PMID: 36178719 DOI: 10.1099/mic.0.001244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
In comparison with terrestrial mammals, dolphins require a large amount of haemoglobin in blood and myoglobin in muscle to prolong their diving time underwater and increase the depth they can dive. The genus Cetobacterium is a common gastrointestinal bacterium in dolphins and includes two species: C. somerae and C. ceti. Whilst the former produces vitamin B12, which is essential for the biosynthesis of haem, a component of haemoglobin and myoglobin, but not produced by mammals, the production ability of the latter remains unknown. The present study aimed to isolate C. ceti from dolphins and reveal its ability to biosynthesize vitamin B12. Three strains of C. ceti, identified by phylogenetic analyses with 16S rRNA gene and genome-based taxonomy assignment and biochemical features, were isolated from faecal samples collected from two captive common bottlenose dolphins (Tursiops truncatus). A microbioassay using Lactobacillus leichmannii ATCC 7830 showed that the average concentration of vitamin B12 produced by the three strains was 11 (standard deviation: 2) pg ml-1. The biosynthesis pathway of vitamin B12, in particular, adenosylcobalamin, was detected in the draft genome of the three strains using blastKOALA. This is the first study to isolate C. ceti from common bottlenose dolphins and reveal its ability of vitamin B12 biosynthesis, and our findings emphasize the importance of C. ceti in supplying haemoglobin and myoglobin to dolphins.
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Affiliation(s)
- Akihiko Suzuki
- Laboratory of Aquatic Animal Physiology, Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
- National Institute for Environmental Studies, Tsukuba, Ibaraki, 305-8506 Japan
| | - Chika Shirakata
- Enoshima Aquarium, Fujisawa, Kanagawa, 251-0035 Japan
- Laboratory of Veterinary Physiology, Department of Veterinary Medicine, Tokyo University of Agriculture and Technology, Fuchu, Tokyo, 183-0054 Japan
| | - Hiroshi Anzai
- Laboratory of Biotechnology in Dairy Life, Department of Bioscience in Dairy Life, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
| | - Daisuke Sumiyama
- Laboratory of Biotechnology in Dairy Life, Department of Bioscience in Dairy Life, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
| | - Miwa Suzuki
- Laboratory of Aquatic Animal Physiology, Department of Marine Science and Resources, College of Bioresource Sciences, Nihon University, Fujisawa, Kanagawa, 252-0880 Japan
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Vuoti E, Palosaari S, Peräniemi S, Tervahauta A, Kokki H, Kokki M, Tuukkanen J, Lehenkari P. In utero deposition of trace elements and metals in tissues. J Trace Elem Med Biol 2022; 73:127042. [PMID: 35905605 DOI: 10.1016/j.jtemb.2022.127042] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/05/2021] [Revised: 06/14/2022] [Accepted: 07/15/2022] [Indexed: 10/17/2022]
Abstract
INTRODUCTION All animals, including humans, are exposed to heavy metals which are known to accumulate in different tissues, especially in bone. During pregnancy, the maternal bone turnover is increased and the metals in the mother's body can be mobilized into the bloodstream. Heavy metals in maternal blood are known to pass through the placenta to the fetal blood and finally, deposited to bone tissue. However, there are no studies on the concentration of metals in the fetal solid tissues and until now, the rate of metal transfer from mother to fetus is not exactly known. MATERIALS AND METHODS Samples of the blood, liver, placenta, and three different bones were collected from 17 pregnant ewes and their 27 fetuses. The animals had no known exposure to heavy metals. The concentrations of Al, As, Ba, Ca, Cd, Co, Cr, Cu, Fe, Hg, K, Mg, Mn, Mo, Na, Ni, P, Pb, Rb, Sb, Sn, Sr, Te, Ti, Tl, V, and Zn were analyzed using ICP-MS. RESULTS AND DISCUSSION The concentration of Sb, Sn, Te, and Tl were under the detection limit in all the samples. The other metals were found in all maternal and fetal tissues, suggesting that all detectable metals cross the placenta. Blood concentrations were low compared to solid tissue concentrations. The concentrations of essential elements varied between maternal and fetal tissues, which could be explained by biological differences. The differences in concentrations of non-essential elements between the ewe and fetuses were smaller. The most significant differences were between maternal and fetal concentrations of Ba and Sr, which is at least partly explained by the mineralization degree of the bone. CONCLUSION Heavy metals accumulate in fetal solid tissues in sheep that are not directly exposed to heavy metals. Because of the differences in anatomy between human and sheep placenta, the accumulation in the tissue of human fetuses should be extrapolated cautiously. However, there might be some clinical relevance for fertile aged women who are exposed to heavy metals, such as women who work in the metal industry or who have undergone joint replacement surgery.
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Affiliation(s)
- Ella Vuoti
- Medical Faculty, Cancer and Translational Medicine Research Unit, University of Oulu, P.O. Box 5000, FI-90014, Finland.
| | - Sanna Palosaari
- Medical Faculty, Cancer and Translational Medicine Research Unit, University of Oulu, P.O. Box 5000, FI-90014, Finland; Medical Research Center, Oulu University and Oulu University Hospital, Oulu, Finland
| | - Sirpa Peräniemi
- University of Eastern Finland, School of Pharmacy, P.O. Box 1627, FI-70210 Kuopio, Finland
| | - Arja Tervahauta
- University of Eastern Finland, School of Pharmacy, P.O. Box 1627, FI-70210 Kuopio, Finland; University of Eastern Finland, Department of Environmental and Biological Sciences, P.O. Box 1627, FI-70210 Kuopio, Finland
| | - Hannu Kokki
- University of Eastern Finland, School of Medicine, P.O. Box 1627, FI-70210 Kuopio, Finland
| | - Merja Kokki
- Kuopio University Hospital, Department of Anesthesia and Intensive Care Medicine, P.O. Box 100, FI-70029, Finland
| | - Juha Tuukkanen
- Medical Faculty, Cancer and Translational Medicine Research Unit, University of Oulu, P.O. Box 5000, FI-90014, Finland
| | - Petri Lehenkari
- Medical Faculty, Cancer and Translational Medicine Research Unit, University of Oulu, P.O. Box 5000, FI-90014, Finland; Medical Research Center, Oulu University and Oulu University Hospital, Oulu, Finland; Division of Orthopedic Surgery, Oulu University Hospital, Oulu, Finland
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45
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Zhao Y, Wang H, Li Y, Yang X, Li Y, Wang T. The action of topical application of Vitamin B 12 ointment on radiodermatitis in a porcine model. Int Wound J 2022; 20:516-528. [PMID: 36008920 PMCID: PMC9885454 DOI: 10.1111/iwj.13899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/01/2022] [Accepted: 07/04/2022] [Indexed: 02/03/2023] Open
Abstract
Radiodermatitis is an inevitable side effect of radiotherapy in cancer treatment and there is currently no consensus on effective drugs for treating the condition. Vitamin B12 is known to be effective for repairing and regenerating damaged skin. However, there are few studies on the use of Vitamin B12 for treating radiodermatitis. This study explored the therapeutic efficacy and mechanism of action of Vitamin B12 ointment on radiodermatitis. A porcine model of grade IV radiodermatitis was established. The ointment was applied for 12 weeks after which histological staining, transmission electron microscopy, RT-qPCR, western blotting, and gene sequencing were performed for the evaluation of specific indicators in skin samples. After 12 weeks of observation, the Vitamin B12 treatment was found to have significantly alleviated radiodermatitis. The treatment also significantly reduced the expression levels of NF-κB, COX-2, IL-6, and TGF-β in the skin samples. The pathways involved in the effects of the treatment were identified by analysing gene expression. In conclusion, Vitamin B12 ointment was found to be highly effective for treating radiodermatitis, with strong anti-radiation, anti-inflammatory, and anti-fibrosis effects. It is thus a promising drug candidate for the treatment of severe radiodermatitis.
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Affiliation(s)
- Yue‐Chen Zhao
- Department of Radiation OncologyThe Second Hospital of Jilin UniversityJilinChina
| | - Hong‐Yong Wang
- Department of Radiation OncologyThe Second Hospital of Jilin UniversityJilinChina
| | - Yun‐Feng Li
- Department of Radiation OncologyThe Second Hospital of Jilin UniversityJilinChina
| | - Xiao‐Yu Yang
- Department of Orthopedic SurgeryThe Second Hospital of Jilin UniversityJilinChina
| | - Yan Li
- K54, Karolinska University Hospital HuddingeStockholmSweden
| | - Tie‐Jun Wang
- Department of Radiation OncologyThe Second Hospital of Jilin UniversityJilinChina
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Plants, Plants, and More Plants: Plant-Derived Nutrients and Their Protective Roles in Cognitive Function, Alzheimer’s Disease, and Other Dementias. Medicina (B Aires) 2022; 58:medicina58081025. [PMID: 36013492 PMCID: PMC9414574 DOI: 10.3390/medicina58081025] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/18/2022] [Accepted: 07/25/2022] [Indexed: 11/16/2022] Open
Abstract
Background and Objectives: Alzheimer’s disease (AD) is the most common form of dementia, with the risk of developing it attributed to non-modifiable and modifiable factors. Currently, there is no cure for AD. A plant-based diet may protect against cognitive decline, due to the effects of plant-based nutrients such as vitamins, antioxidants, and fiber. The aim of the review is to summarize current literature on plant-based nutrients and their impact on cognition. Materials and Methods: A search was conducted on PubMed for clinical and murine studies, using combinations of the following words: “Alzheimer’s disease”, “dementia”, “cognition”, “plant-based diet”, “mild cognitive impairment”, “vitamin B”, “vitamin C”, “vitamin E, “beta carotene”, “antioxidants”, “fiber”, “vitamin K”, “Mediterranean diet”, “vitamin D”, and “mushrooms”. Results and Conclusions: A diet rich in vitamin B and antioxidants can benefit the cognitive functions of individuals as shown in randomized clinical trials. Vitamin K is associated with improved cognition, although large randomized controlled trials need to be done. Fiber has been shown to prevent cognitive decline in animal studies. Vitamin D may contribute to cognitive health via anti-inflammatory processes. Several medical organizations have recommended a plant-based diet for optimizing cognitive health and potentially helping to prevent dementia.
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Diagnostic and Therapeutic Perspectives Associated to Cobalamin-Dependent Metabolism and Transcobalamins’ Synthesis in Solid Cancers. Nutrients 2022; 14:nu14102058. [PMID: 35631199 PMCID: PMC9145230 DOI: 10.3390/nu14102058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Accepted: 05/11/2022] [Indexed: 02/01/2023] Open
Abstract
Cobalamin or vitamin B12 (B12) is a cofactor for methionine synthase and methylmalonyl-CoA mutase, two enzymes implicated in key pathways for cell proliferation: methylation, purine synthesis, succinylation and ATP production. Ensuring these functions in cancer cells therefore requires important cobalamin needs and its uptake through the transcobalamin II receptor (TCII-R). Thus, both the TCII-R and the cobalamin-dependent metabolic pathways constitute promising therapeutic targets to inhibit cancer development. However, the link between cobalamin and solid cancers is not limited to cellular metabolism, as it also involves the circulating transcobalamins I and II (TCI or haptocorrin and TCII) carrier proteins, encoded by TCN1 and TCN2, respectively. In this respect, elevations of B12, TCI and TCII concentrations in plasma are associated with cancer onset and relapse, and with the presence of metastases and worse prognosis. In addition, TCN1 and TCN2 overexpressions are associated with chemoresistance and a proliferative phenotype, respectively. Here we review the involvement of cobalamin and transcobalamins in cancer diagnosis and prognosis, and as potential therapeutic targets. We further detail the relationship between cobalamin-dependent metabolic pathways in cancer cells and the transcobalamins’ abundancies in plasma and tumors, to ultimately hypothesize screening and therapeutic strategies linking these aspects.
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Watanabe F, Bito T, Koseki K. Determination of cobalamin and related compounds in foods. VITAMINS AND HORMONES 2022; 119:491-504. [PMID: 35337633 DOI: 10.1016/bs.vh.2022.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The microbiological assay of total cobalamin (vitamin B12) by Lactobacillus delbrueckii subsp. lactis ATCC7830 is now used worldwide in food analysis because of its high sensitivity, low running cost, and no expensive instruments. It has been recently reported that some foods contain a substantial number of inactive corrinoid compounds, some of which are active in this bacterium. These results indicate that the microbiological method must be replaced with high-performance liquid chromatography or liquid chromatography/electrospray ionization-tandem mass spectrometry as there can specifically determine biologically active cobalamin. Nowadays, powerful tools, such as immunoaffinity columns, purify cobalamin simply and specifically. In this chapter, we summarized the determination methods of cobalamin and related compounds in foods. Various inactive corrinoids found in foods were also characterized.
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Affiliation(s)
- F Watanabe
- Division of Applied Bioresource Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan; Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori, Japan.
| | - T Bito
- Division of Applied Bioresource Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan; Department of Agricultural, Life and Environmental Sciences, Faculty of Agriculture, Tottori University, Tottori, Japan
| | - K Koseki
- Division of Applied Bioresource Chemistry, United Graduate School of Agricultural Sciences, Tottori University, Tottori, Japan
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49
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Guéant JL, Guéant-Rodriguez RM, Alpers DH. Vitamin B12 absorption and malabsorption. VITAMINS AND HORMONES 2022; 119:241-274. [PMID: 35337622 DOI: 10.1016/bs.vh.2022.01.016] [Citation(s) in RCA: 31] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Vitamin B12 is assimilated and transported by complex mechanisms that involve three transport proteins, intrinsic factor (IF), haptocorrin (HC) and transcobalamin (TC) and their respective membrane receptors. Vitamin deficiency is mainly due to inadequate dietary intake in vegans, and B12 malabsorption is related to digestive diseases. This review explores the physiology of vitamin B12 absorption and the mechanisms and diseases that produce malabsorption. In the stomach, B12 is released from food carrier proteins and binds to HC. The degradation of HC by pancreatic proteases and the pH change trigger the transfer of B12 to IF in the duodenum. Cubilin and amnionless are the two components of the receptor that mediates the uptake of B12 in the distal ileum. Part of liver B12 is excreted in bile, and undergoes an enterohepatic circulation. The main causes of B12 malabsorption include inherited disorders (Intrinsic factor deficiency, Imerslund-Gräsbeck disease, Addison's pernicious anemia, obesity, bariatric surgery and gastrectomies. Other causes include pancreatic insufficiency, obstructive Jaundice, tropical sprue and celiac disease, bacterial overgrowth, parasitic infestations, Zollinger-Ellison syndrome, inflammatory bowel diseases, chronic radiation enteritis of the distal ileum and short bowel. The assessment of B12 deficit is recommended in the follow-up of subjects with bariatric surgery. The genetic causes of B12 malabsorption are probably underestimated in adult cases with B12 deficit. Despite its high prevalence in the general population and in the elderly, B12 malabsorption cannot be anymore assessed by the Schilling test, pointing out the urgent need for an equivalent reliable test.
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Affiliation(s)
- Jean-Louis Guéant
- University of Lorraine, INSERM UMR_S 1256, Nutrition, Genetics, and Environmental Risk Exposure (NGERE), Faculty of Medicine of Nancy, Nancy, France; Department of Biochemistry, Molecular Biology, Nutrition, and Metabolism, University Hospital of Nancy, Nancy, France; Department of Hepato-Gastroenterology, University Hospital of Nancy, Nancy, France.
| | - Rosa-Maria Guéant-Rodriguez
- University of Lorraine, INSERM UMR_S 1256, Nutrition, Genetics, and Environmental Risk Exposure (NGERE), Faculty of Medicine of Nancy, Nancy, France; Department of Biochemistry, Molecular Biology, Nutrition, and Metabolism, University Hospital of Nancy, Nancy, France
| | - David H Alpers
- Department of Internal Medicine, Division of Gastroenterology, Washington University School of Medicine, St Louis, MO, United States.
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50
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Vásquez L, Parra A, Quesille-Villalobos AM, Gálvez G, Navarrete P, Latorre M, Toro M, González M, Reyes-Jara A. Cobalamin cbiP mutant shows decreased tolerance to low temperature and copper stress in Listeria monocytogenes. Biol Res 2022; 55:9. [PMID: 35236417 PMCID: PMC8889760 DOI: 10.1186/s40659-022-00376-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2021] [Accepted: 01/24/2022] [Indexed: 02/07/2023] Open
Abstract
Background Listeria monocytogenes is a foodborne pathogen that causes listeriosis in humans. This pathogen activates multiple regulatory mechanisms in response to stress, and cobalamin biosynthesis might have a potential role in bacterial protection. Low temperature is a strategy used in the food industry to control bacteria proliferation; however, L. monocytogenes can grow in cold temperatures and overcome different stress conditions. In this study we selected L. monocytogenes List2-2, a strain with high tolerance to the combination of low temperature + copper, to understand whether the cobalamin biosynthesis pathway is part of the tolerance mechanism to this stress condition. For this, we characterized the transcription level of three cobalamin biosynthesis-related genes (cbiP, cbiB, and cysG) and the eutV gene, a transcriptional regulator encoding gene involved in ethanolamine metabolism, in L. monocytogenes strain List2-2 growing simultaneously under two environmental stressors: low temperature (8 °C) + copper (0.5 mM of CuSO4 × 5H2O). In addition, the gene cbiP, which encodes an essential cobyric acid synthase required in the cobalamin pathway, was deleted by homologous recombination to evaluate the impact of this gene in L. monocytogenes tolerance to a low temperature (8 °C) + different copper concentrations. Results By analyzing the KEGG pathway database, twenty-two genes were involved in the cobalamin biosynthesis pathway in L. monocytogenes List2-2. The expression of genes cbiP, cbiB, and cysG, and eutV increased 6 h after the exposure to low temperature + copper. The cobalamin cbiP mutant strain List2-2ΔcbiP showed less tolerance to low temperature + copper (3 mM) than the wild-type L. monocytogenes List2-2. The addition of cyanocobalamin (5 nM) to the medium reverted the phenotype observed in List2-2ΔcbiP. Conclusion These results indicate that cobalamin biosynthesis is necessary for L. monocytogenes growth under stress and that the cbiP gene may play a role in the survival and growth of L. monocytogenes List2-2 at low temperature + copper. Supplementary Information The online version contains supplementary material available at 10.1186/s40659-022-00376-4.
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Affiliation(s)
- L Vásquez
- Laboratorio de Microbiología y Probióticos, INTA Universidad de Chile, Avenida El Líbano 5524 Macul, Santiago, Chile
| | - A Parra
- Doctorado en Acuicultura, Programa Cooperativo Universidad de Chile, Universidad Católica del Norte, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile.,Facultad de Ciencias del Mar, Universidad Católica del Norte, Larrondo 1281, Coquimbo, Chile
| | - A M Quesille-Villalobos
- Laboratorio de Microbiología y Probióticos, INTA Universidad de Chile, Avenida El Líbano 5524 Macul, Santiago, Chile
| | - G Gálvez
- Laboratorio de Bioingeniería, Instituto de Ciencias de la Ingeniería, Universidad de O'Higgins, Rancagua, Chile
| | - P Navarrete
- Laboratorio de Microbiología y Probióticos, INTA Universidad de Chile, Avenida El Líbano 5524 Macul, Santiago, Chile.,ANID-Millennium Science Initiative Program-Millennium Nucleus in the Biology of the Intestinal Microbiota, Santiago, Chile
| | - M Latorre
- Laboratorio de Bioingeniería, Instituto de Ciencias de la Ingeniería, Universidad de O'Higgins, Rancagua, Chile.,Laboratorio de Bioinformática y Expresión Génica, INTA, Universidad de Chile, Santiago, Chile
| | - M Toro
- Laboratorio de Microbiología y Probióticos, INTA Universidad de Chile, Avenida El Líbano 5524 Macul, Santiago, Chile
| | - M González
- Laboratorio de Bioinformática y Expresión Génica, INTA, Universidad de Chile, Santiago, Chile.,Fondap Center for Genome Regulation (CGR), Santiago, Chile
| | - A Reyes-Jara
- Laboratorio de Microbiología y Probióticos, INTA Universidad de Chile, Avenida El Líbano 5524 Macul, Santiago, Chile.
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