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Georgoulis I, Bock C, Lannig G, Pörtner HO, Feidantsis K, Giantsis IA, Sokolova IM, Michaelidis B. Metabolic remodeling caused by heat hardening in the Mediterranean mussel Mytilus galloprovincialis. J Exp Biol 2022; 225:285988. [PMID: 36426666 DOI: 10.1242/jeb.244795] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Accepted: 11/18/2022] [Indexed: 11/27/2022]
Abstract
Organisms can modify and increase their thermal tolerance faster and more efficiently after a brief exposure to sublethal thermal stress. This response is called 'heat hardening' as it leads to the generation of phenotypes with increased heat tolerance. The aim of this study was to investigate the impact of heat hardening on the metabolomic profile of Mytilus galloprovincialis in order to identify the associated adjustments of biochemical pathways that might benefit the mussels' thermal tolerance. Thus, mussels were exposed sequentially to two different phases (heat hardening and acclimation phases). To gain further insight into the possible mechanisms underlying the metabolic response of the heat-hardened M. galloprovincialis, metabolomics analysis was complemented by the estimation of mRNA expression of phosphoenolpyruvate carboxykinase (PEPCK), pyruvate kinase (PK) and alternative oxidase (AOX) implicated in the metabolic pathways of gluconeogenesis, glycolysis and redox homeostasis, respectively. Heat-hardened mussels showed evidence of higher activity of the tricarboxylic acid (TCA) cycle and diversification of upregulated metabolic pathways, possibly as a mechanism to increase ATP production and extend survival under heat stress. Moreover, formate and taurine accumulation provide an antioxidant and cytoprotective role in mussels during hypoxia and thermal stress. Overall, the metabolic responses in non-heat-hardened and heat-hardened mussels underline the upper thermal limits of M. galloprovincialis, set at 26°C, and are in accordance with the OCLTT concept. The ability of heat-hardened mussels to undergo a rapid gain and slow loss of heat tolerance may be an advantageous strategy for coping with intermittent and often extreme temperatures.
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Affiliation(s)
- Ioannis Georgoulis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Christian Bock
- Alfred Wegener Institute, Helmholtz-Centre for Polar and Marine Research, Integrative Ecophysiology, Postfach 120161, D-27515 Bremerhaven, Germany
| | - Gisela Lannig
- Alfred Wegener Institute, Helmholtz-Centre for Polar and Marine Research, Integrative Ecophysiology, Postfach 120161, D-27515 Bremerhaven, Germany
| | - Hans-O Pörtner
- Alfred Wegener Institute, Helmholtz-Centre for Polar and Marine Research, Integrative Ecophysiology, Postfach 120161, D-27515 Bremerhaven, Germany
| | - Konstantinos Feidantsis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
| | - Ioannis A Giantsis
- Department of Animal Science, Faculty of Agricultural Sciences, University of Western Macedonia, GR-53100 Florina, Greece
| | - Inna M Sokolova
- Department of Marine Biology, Institute of Biological Sciences, University of Rostock, D-18055 Rostock, Germany
| | - Basile Michaelidis
- Laboratory of Animal Physiology, Department of Zoology, School of Biology, Aristotle University of Thessaloniki, GR-54124 Thessaloniki, Greece
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Yu H, Villanueva N, Bittar T, Arsenault E, Labonté B, Huan T. Parallel metabolomics and lipidomics enables the comprehensive study of mouse brain regional metabolite and lipid patterns. Anal Chim Acta 2020; 1136:168-177. [PMID: 33081941 DOI: 10.1016/j.aca.2020.09.051] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/17/2020] [Accepted: 09/25/2020] [Indexed: 12/24/2022]
Abstract
Global profiling of the metabolome and lipidome of specific brain regions is essential to understanding the cellular and molecular mechanisms regulating brain activity. Given the limited amount of starting material, conventional mouse studies comparing brain regions have mainly targeted a set of known metabolites in large brain regions (e.g., cerebrum, cortex). In this work, we developed a multimodal analytical pipeline enabling parallel analyses of metabolomic and lipidomic profiles from anatomically distinct mouse brain regions starting with less than 0.2 mg of protein content. This analytical pipeline is composed of (1) sonication-based tissue homogenization, (2) parallel metabolite and lipid extraction, (3) BCA-based sample normalization, (4) ultrahigh performance liquid chromatography-mass spectrometry-based multimodal metabolome and lipidome profiling, (5) streamlined data processing, and (6) chord plot-based data visualization. We applied this pipeline to the study of four brain regions in males including the amygdala, dorsal hippocampus, nucleus accumbens and ventral tegmental area. With this novel approach, we detected over 5000 metabolic and 6000 lipid features, among which 134 metabolites and 479 lipids were directly confirmed via automated MS2 spectral matching. Interestingly, our analysis identified unique metabolic and lipid profiles in each brain regions. Furthermore, we identified functional relationships amongst metabolic and lipid subclasses, potentially underlying cellular and functional differences across all four brain regions. Overall, our novel workflow generates comprehensive region-specific metabolomic and lipidomic profiles using very low amount of brain sub-regional tissue sample, which could be readily integrated with region-specific genomic, transcriptomic, and proteomic data to reveal novel insights into the molecular mechanisms underlying the activity of distinct brain regions.
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Affiliation(s)
- Huaxu Yu
- Department of Chemistry, Faculty of Science, University of British Columbia, Vancouver Campus, 2036 Main Mall, Vancouver, V6T 1Z1, BC, Canada
| | - Nathaniel Villanueva
- Department of Chemistry, Faculty of Science, University of British Columbia, Vancouver Campus, 2036 Main Mall, Vancouver, V6T 1Z1, BC, Canada
| | - Thibault Bittar
- Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, CERVO Brain Research Center, Québec, G1J 2G3, QC, Canada
| | - Eric Arsenault
- Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, CERVO Brain Research Center, Québec, G1J 2G3, QC, Canada
| | - Benoit Labonté
- Department of Psychiatry and Neurosciences, Faculty of Medicine, Université Laval, CERVO Brain Research Center, Québec, G1J 2G3, QC, Canada
| | - Tao Huan
- Department of Chemistry, Faculty of Science, University of British Columbia, Vancouver Campus, 2036 Main Mall, Vancouver, V6T 1Z1, BC, Canada.
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Saugo E, Lasalvia A, Bonetto C, Cristofalo D, Poli S, Bissoli S, Bertani M, Lazzarotto L, Gardellin F, Ceccato E, Pavanati M, Tosato S, Ruggeri M. Dietary habits and physical activity in first-episode psychosis patients treated in community services. Effect on early anthropometric and cardio-metabolic alterations. Schizophr Res 2020; 216:374-381. [PMID: 31806524 DOI: 10.1016/j.schres.2019.11.010] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 10/27/2019] [Accepted: 11/05/2019] [Indexed: 01/08/2023]
Abstract
People with psychosis often develop metabolic and cardiovascular disorders, due to several factors including unhealthy lifestyle and antipsychotic treatment. This study aims to evaluate in a sample of first episode psychosis (FEP) patients lifestyle factors, with a specific emphasis on dietary habits and physical activity, and cardio-metabolic and anthropometric profile at illness onset and at 9 months. Moreover, this study aims to evaluate the impact of lifestyle factors on short term changes in cardio-metabolic and anthropometric profile. A 9-month follow-up study was conducted on a sample of 96 FEP patients recruited within the context of the GET UP program. Standardised assessments of dietary habits (EPIC) and physical activity (IPAQ) were retrospectively performed at 9 months; cardiovascular measures (blood pressure, heart rate), metabolic parameters (glucose, cholesterol, triglycerides), BMI and antipsychotic treatment were assessed at illness onset and at 9 months. We found that most FEP patients (60%) displayed poor dietary habits, as defined in terms of adherence to the Mediterranean diet. A significant increase for both BMI and cholesterol levels was found in the overall sample over 9 months. However, when considering the effect of lifestyle factors, BMI and total cholesterol were specifically raised in patients with low adherence to Mediterranean diet. The association with antipsychotic medication was found for SGA only, with a significant increase in both BMI and total cholesterol overtime. Our findings confirm the need to implement specific and early strategies to promote healthy lifestyle in people with FEP, since metabolic alterations occur within the first months of treatment.
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Affiliation(s)
- Elena Saugo
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | - Antonio Lasalvia
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy; UOC Psichiatria, Azienda Ospedaliera Universitaria Integrata (AOUI) di Verona, Italy.
| | - Chiara Bonetto
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | - Doriana Cristofalo
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | - Sara Poli
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | - Sarah Bissoli
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | - Mariaelena Bertani
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | - Lorenza Lazzarotto
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy
| | | | - Enrico Ceccato
- Dipartimento di Salute Mentale, Azienda ULSS 8 Berica, Vicenza, Italy
| | - Michele Pavanati
- Dipartimento di Salute Mentale e Dipendenze Patologiche, AUSL Ferrara, Italy
| | - Sarah Tosato
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy; UOC Psichiatria, Azienda Ospedaliera Universitaria Integrata (AOUI) di Verona, Italy
| | - Mirella Ruggeri
- Section of Psychiatry, Department of Neuroscience, Biomedicine and Movement Sciences, University of Verona, Italy; UOC Psichiatria, Azienda Ospedaliera Universitaria Integrata (AOUI) di Verona, Italy
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Moscoviz R, Trably E, Bernet N. Consistent 1,3-propanediol production from glycerol in mixed culture fermentation over a wide range of pH. Biotechnol Biofuels 2016; 9:32. [PMID: 26855671 PMCID: PMC4744455 DOI: 10.1186/s13068-016-0447-8] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/20/2016] [Indexed: 05/28/2023]
Abstract
BACKGROUND Glycerol is currently an over-produced chemical that can be used as substrate for the production of high value products such as 1,3-propanediol (1,3-PDO) in fermentation processes. The aim of this study was to investigate the effect of initial pH on a batch mixed culture fermentation of glycerol, considering both the bacterial community composition and the fermentation patterns. RESULTS For pH values between 5 and 9, 1,3-PDO production yields ranged from 0.52 ± 0.01 to 0.64 ± 0.00 [Formula: see text], with the highest values obtained at pH 7 and 8. An Enterobacteriaceae member closely related to Citrobacter freundii was strongly enriched at all pH values. Within the less dominant bacterial species, two different microbial community structures were found, one at acid pH values and another at neutral to basic pH values. CONCLUSIONS 1,3-PDO production was improved at pH values over 7. It was anti-correlated with lactate and ethanol production but positively correlated with acetate production. No direct correlation between 1,3-PDO production and a specific family of bacteria was found, suggesting functional redundancies in the microbial community. However, 1,3-PDO production yield remained high over the range of pH studied and was comparable to the best obtained in the same conditions in the literature.
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Affiliation(s)
- Roman Moscoviz
- INRA, UR0050, Laboratoire de Biotechnologie de L’Environnement (LBE), Avenue des étangs, 11100 Narbonne, France
| | - Eric Trably
- INRA, UR0050, Laboratoire de Biotechnologie de L’Environnement (LBE), Avenue des étangs, 11100 Narbonne, France
| | - Nicolas Bernet
- INRA, UR0050, Laboratoire de Biotechnologie de L’Environnement (LBE), Avenue des étangs, 11100 Narbonne, France
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