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Mangliar IA, Plante AS, Chabot M, Savard C, Lemieux S, Michaud A, Weisnagel SJ, Camirand Lemyre F, Veilleux A, Morisset AS. GLP-1 response during pregnancy: variations between trimesters and associations with appetite sensations and usual energy intake. Appl Physiol Nutr Metab 2024; 49:428-436. [PMID: 38095168 DOI: 10.1139/apnm-2023-0301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Further research is required to understand hormonal regulation of food intake during pregnancy and its association with energy intake. The objectives are to (i) compare postprandial responses of plasma glucagon-like peptide-1 (GLP-1) between trimesters, (ii) compare postprandial appetite sensations between trimesters, and (iii) examine trimester-specific associations between GLP-1 levels, appetite sensations, and usual energy intake. At each trimester, participants (n = 26) consumed a standard test meal following a 12 h fast. Plasma GLP-1 levels were measured by enzyme-linked immunosorbent assay method at fasting and at 30, 60, 120, and 180 min postprandial. A visual analogue scale assessing appetite sensations was completed at fasting and at 15, 30, 45, 60, 90, 120, 150, and 180 min postprandial. Mean energy intake was assessed using three web-based 24 h dietary recalls at each trimester. Lower postprandial GLP-1 responses were observed in the 2nd (p = 0.004) and 3rd trimesters (p < 0.001) compared to the 1st trimester. Greater postprandial sensations of desire to eat, hunger, and prospective food consumption were noted in the 3rd trimester compared to the 1st trimester (p < 0.04, for all). Fasting GLP-1 was negatively associated with fasting appetite sensations (except fullness) at the 2nd trimester (p < 0.02, for all). Postprandially, significant associations were observed for incremental areas under the curve from 0 to 30 min between GLP-1 and fullness at the 2nd (p = 0.01) and 3rd trimesters (p = 0.03). No associations between fasting or postprandial GLP-1 and usual energy intake were observed. Overall, GLP-1 and appetite sensation responses significantly differ between trimesters, but few associations were observed between GLP-1, appetite sensations, and usual energy intake.
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Affiliation(s)
- Inès Auclair Mangliar
- School of Nutrition, Université Laval, Québec, QC, Canada
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Anne-Sophie Plante
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Myriam Chabot
- Mathematics Department, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Claudia Savard
- School of Nutrition, Université Laval, Québec, QC, Canada
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
| | - Simone Lemieux
- School of Nutrition, Université Laval, Québec, QC, Canada
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
| | - Andréanne Michaud
- School of Nutrition, Université Laval, Québec, QC, Canada
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
- Quebec Heart and Lung Institute, Université Laval, Québec, QC, Canada
| | - S John Weisnagel
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
- Faculty of Medecine, Université Laval, Québec, QC, Canada
| | - Félix Camirand Lemyre
- Mathematics Department, Université de Sherbrooke, Sherbrooke, QC, Canada
- Centre de recherche du Centre hospitalier universitaire de Sherbrooke, Sherbrooke, QC, Canada
| | - Alain Veilleux
- School of Nutrition, Université Laval, Québec, QC, Canada
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
| | - Anne-Sophie Morisset
- School of Nutrition, Université Laval, Québec, QC, Canada
- Nutrition, Health and Society (NUTRISS) Research Centre, Institute of Nutrition and Functional Foods (INAF), Université Laval, Québec, QC, Canada
- Endocrinology and Nephrology Unit, Centre de recherche du CHU de Québec-Université Laval, Québec, QC, Canada
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Rakotoarivelo V, Allam-Ndoul B, Martin C, Biertho L, Di Marzo V, Flamand N, Veilleux A. Investigating the alterations of endocannabinoidome signaling in the human small intestine in the context of obesity and type 2 diabetes. Heliyon 2024; 10:e26968. [PMID: 38515705 PMCID: PMC10955212 DOI: 10.1016/j.heliyon.2024.e26968] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 02/19/2024] [Accepted: 02/22/2024] [Indexed: 03/23/2024] Open
Abstract
Background Human studies have linked obesity-related diseases, such as type-2 diabetes (T2D), to the modulation of endocannabinoid signaling. Cannabinoid CB1 and CB2 receptor activation by the endocannabinoids (eCBs) 2-arachidonoylglycerol (2-AG) and N-arachidonoylethanolamine (AEA), both derived from arachidonic acid, play a role in homeostatic regulation. Other long chain fatty acid-derived endocannabinoid-like molecules have extended the metabolic role of this signaling system through other receptors. In this study, we aimed to assess in depth the interactions between the circulating and intestinal tone of this extended eCB system, or endocannabinoidome (eCBome), and their involvement in the pathogenesis of diabetes. Methods Plasma and ileum samples were collected from subjects with obesity and harboring diverse degrees of insulin resistance or T2D, who underwent bariatric surgery. The levels of eCBome mediators and their congeners were then assessed by liquid chromatography coupled to tandem mass spectrometry, while gene expression was screened with qPCR arrays. Findings Intestinal and circulating levels of eCBome mediators were higher in subjects with T2D. We found an inverse correlation between the intestinal and circulating levels of monoacylglycerols (MAGs). Additionally, we identified genes known to be implicated in both lipid metabolism and intestinal function that are altered by the context of obesity and glucose homeostasis. Interpretation Although the impact of glucose metabolism on the eCBome remains poorly understood in subjects with advanced obesity state, our results suggest a strong causative link between altered glucose homeostasis and eCBome signaling in the intestine and the circulation.
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Affiliation(s)
- Volatiana Rakotoarivelo
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Université Laval, Québec City, QC, Canada
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Bénédicte Allam-Ndoul
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Université Laval, Québec City, QC, Canada
- Centre Nutrition, Santé et Société (NUTRISS), INAF, Québec, QC, Canada
| | - Cyril Martin
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Université Laval, Québec City, QC, Canada
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Laurent Biertho
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Université Laval, Québec City, QC, Canada
| | - Vincenzo Di Marzo
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Université Laval, Québec City, QC, Canada
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
- Centre Nutrition, Santé et Société (NUTRISS), INAF, Québec, QC, Canada
- Joint International Unit between the CNR of Italy and Université Laval on Chemical and Biomolecular Research on the Microbiome and its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Canada
| | - Nicolas Flamand
- Centre de recherche de l’Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Université Laval, Québec City, QC, Canada
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Alain Veilleux
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
- Centre Nutrition, Santé et Société (NUTRISS), INAF, Québec, QC, Canada
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Castonguay-Paradis S, Perron J, Flamand N, Lamarche B, Raymond F, Di Marzo V, Veilleux A. Dietary food patterns as determinants of the gut microbiome-endocannabinoidome axis in humans. Sci Rep 2023; 13:15702. [PMID: 37735572 PMCID: PMC10514042 DOI: 10.1038/s41598-023-41650-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2023] [Accepted: 08/29/2023] [Indexed: 09/23/2023] Open
Abstract
The gut microbiota and the endocannabinoidome (eCBome) play important roles in regulating energy homeostasis, and both are closely linked to dietary habits. However, the complex and compositional nature of these variables has limited our understanding of their interrelationship. This study aims to decipher the interrelation between dietary intake and the gut microbiome-eCBome axis using two different approaches for measuring dietary intake: one based on whole food and the other on macronutrient intakes. We reveal that food patterns, rather than macronutrient intakes, were associated with the gut microbiome-eCBome axis in a sample of healthy men and women (n = 195). N-acyl-ethanolamines (NAEs) and gut microbial families were correlated with intakes of vegetables, refined grains, olive oil and meats independently of adiposity and energy intakes. Specifically, higher intakes in vegetables and olive oil were associated with increased relative abundance of Clostridiaceae, Veillonellaceae and Peptostreptococaceae, decreased relative abundance of Acidominococaceae, higher circulating levels of NAEs, and higher HDL and LDL cholesterol levels. Our findings highlight the relative importance of food patterns in determining the gut microbiome-eCBome axis. They emphasize the importance of recognizing the contribution of dietary habits in these systems to develop personalized dietary interventions for preventing and treating metabolic disorders through this axis.
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Affiliation(s)
- Sophie Castonguay-Paradis
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC, G1V 0A6, Canada
- École de Nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - Julie Perron
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC, G1V 0A6, Canada
- École de Nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, Canada
| | - Nicolas Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Université Laval, Québec, Canada
- Département de médecine, Faculté de médecine, Université Laval, Québec, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - Benoît Lamarche
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC, G1V 0A6, Canada
- École de Nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, Canada
| | - Frédéric Raymond
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC, G1V 0A6, Canada
- École de Nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - Vincenzo Di Marzo
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC, G1V 0A6, Canada
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Université Laval, Québec, Canada
- École de Nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, Canada
- Département de médecine, Faculté de médecine, Université Laval, Québec, Canada
- Joint International Unit between the National Research Council (CNR) of Italy and Université Laval on Chemical and Biomolecular Research on the Microbiome and its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Institute of Biomolecular Chemistry, CNR, Pozzuoli, Italy
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - Alain Veilleux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC, G1V 0A6, Canada.
- École de Nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, Canada.
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada.
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Lacroix S, Leblanc N, Abolghasemi A, Paris-Robidas S, Martin C, Frappier M, Flamand N, Silvestri C, Raymond F, Millette M, Di Marzo V, Veilleux A. Probiotic interventions promote metabolic health in high fat-fed hamsters in association with gut microbiota and endocannabinoidome alterations. Benef Microbes 2023:1-16. [PMID: 37282555 DOI: 10.3920/bm2022.0080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Probiotics represent a promising tool to improve metabolic health, including lipid profiles and cholesterol levels. Modulation of the gut microbiome and the endocannabinoidome - two interrelated systems involved in several metabolic processes influenced by probiotics - has been proposed as a potential mechanism of action. This study establishes the impact of probiotics on metabolic health, gut microbiota composition and endocannabinoidome mediators in an animal model of hypercholesterolaemia. Syrian hamsters were fed either a low-fat low-cholesterol or high-fat high-cholesterol (HFHC) diet to induce hypercholesterolaemia and gavaged for 6 weeks with either Lactobacillus acidophilus CL1285, Lactiplantibacillus plantarum CHOL-200 or a combination of the two. Globally, probiotic interventions ameliorated, at least partially, lipid metabolism in HFHC-fed hamsters. The interventions, especially those including L. acidophilus, modified the gut microbiota composition of the small intestine and caecum in ways suggesting reversal of HFHC-induced dysbiosis. Several associations were observed between changes in gut microbiota composition and endocannabinoidome mediators following probiotic interventions and both systems were also associated with improved metabolic health parameters. For instance, potential connexions between the Eubacteriaceae and Deferribacteraceae families, levels of 2‑palmitoylglycerol, 2‑oleoylglycerol, 2‑linoleoylglycerol or 2‑eicosapentaenoylglycerol and improved lipid profiles were found. Altogether, our results suggest a potential crosstalk between gut microbiota and the endocannabinoidome in driving metabolic benefits associated with probiotics, especially those including L. acidophilus, in an animal model of hypercholesterolaemia.
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Affiliation(s)
- S Lacroix
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440 boulevard Hochelaga, Québec City, Québec G1V 0A6, Canada
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - N Leblanc
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440 boulevard Hochelaga, Québec City, Québec G1V 0A6, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, 2425 Rue de l'Agriculture, Québec City, Quebec G1V 0A6, Canada
| | - A Abolghasemi
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - S Paris-Robidas
- TransBioTech, 201 Rue Monseigneur-Bourget, Lévis, Quebec G6V 6Z9, Canada
| | - C Martin
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
| | - M Frappier
- Bio-K+, a division of Kerry Group, 495 Bd Armand-Frappier, Laval, Québec H7V 4B3, Canada
| | - N Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
- Département de médecine, Faculté de Médecine, Université Laval, 1050 Av. de la Médecine, Québec City, Quebec G1V 0A6, Canada
| | - C Silvestri
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
- Département de médecine, Faculté de Médecine, Université Laval, 1050 Av. de la Médecine, Québec City, Quebec G1V 0A6, Canada
| | - F Raymond
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440 boulevard Hochelaga, Québec City, Québec G1V 0A6, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, 2425 Rue de l'Agriculture, Québec City, Quebec G1V 0A6, Canada
| | - M Millette
- Bio-K+, a division of Kerry Group, 495 Bd Armand-Frappier, Laval, Québec H7V 4B3, Canada
| | - V Di Marzo
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440 boulevard Hochelaga, Québec City, Québec G1V 0A6, Canada
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, 2425 Rue de l'Agriculture, Québec City, Quebec G1V 0A6, Canada
- Département de médecine, Faculté de Médecine, Université Laval, 1050 Av. de la Médecine, Québec City, Quebec G1V 0A6, Canada
- Joint International Unit between the National Research Council (CNR) of Italy and Université Laval on Chemical and Biomolecular Research on the Microbiome and its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Institute of Biomolecular Chemistry, CNR, Pozzuoli, Italy
| | - A Veilleux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440 boulevard Hochelaga, Québec City, Québec G1V 0A6, Canada
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), 2725 Ch Ste-Foy, Québec City, Quebec G1V 4G5, Canada
- Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, Canada
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, 2425 Rue de l'Agriculture, Québec City, Quebec G1V 0A6, Canada
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Bourdeau-Julien I, Castonguay-Paradis S, Rochefort G, Perron J, Lamarche B, Flamand N, Di Marzo V, Veilleux A, Raymond F. The diet rapidly and differentially affects the gut microbiota and host lipid mediators in a healthy population. Microbiome 2023; 11:26. [PMID: 36774515 PMCID: PMC9921707 DOI: 10.1186/s40168-023-01469-2] [Citation(s) in RCA: 25] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Accepted: 01/16/2023] [Indexed: 05/31/2023]
Abstract
BACKGROUND Bioactive lipids produced by human cells or by the gut microbiota might play an important role in health and disease. Dietary intakes are key determinants of the gut microbiota, its production of short-chain (SCFAs) and branched-chain fatty acids (BCFAs), and of the host endocannabinoidome signalling, which are all involved in metabolic diseases. This hypothesis-driven longitudinal fixed sequence nutritional study, realized in healthy participants, was designed to determine if a lead-in diet affects the host response to a short-term dietary intervention. Participants received a Mediterranean diet (MedDiet) for 3 days, a 13-day lead-in controlled diet reflecting the average Canadian dietary intake (CanDiet), and once again a MedDiet for 3 consecutive days. Fecal and blood samples were collected at the end of each dietary phase to evaluate alterations in gut microbiota composition and plasma levels of endocannabinoidome mediators, SCFAs, and BCFAs. RESULTS We observed an immediate and reversible modulation of plasma endocannabinoidome mediators, BCFAs, and some SCFAs in response to both diets. BCFAs were more strongly reduced by the MedDiet when the latter was preceded by the lead-in CanDiet. The gut microbiota response was also immediate, but not all changes due to the CanDiet were reversible following a short dietary MedDiet intervention. Higher initial microbiome diversity was associated with reduced microbiota modulation after short-term dietary interventions. We also observed that BCFAs and 2-monoacylglycerols had many, but distinct, correlations with gut microbiota composition. Several taxa modulated by dietary intervention were previously associated to metabolic disorders, warranting the need to control for recent diet in observational association studies. CONCLUSIONS Our results indicate that lipid mediators involved in the communication between the gut microbiota and host metabolism exhibit a rapid response to dietary changes, which is also the case for some, but not all, microbiome taxa. The lead-in diet influenced the gut microbiome and BCFA, but not the endocannabinoidome, response to the MedDiet. A higher initial microbiome diversity favored the stability of the gut microbiota in response to dietary changes. This study highlights the importance of considering the previous diet in studies relating the gut microbiome with lipid signals involved in host metabolism. Video Abstract.
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Affiliation(s)
- Isabelle Bourdeau-Julien
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
| | - Sophie Castonguay-Paradis
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
| | - Gabrielle Rochefort
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
| | - Julie Perron
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
| | - Benoît Lamarche
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
| | - Nicolas Flamand
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
- Centre de recherche de l’Institut de cardiologie et de pneumologie de Québec, Faculté de médecine, Département de médecine, Université Laval, Québec, Canada
| | - Vincenzo Di Marzo
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
- Centre de recherche de l’Institut de cardiologie et de pneumologie de Québec, Faculté de médecine, Département de médecine, Université Laval, Québec, Canada
- Unité Mixte Internationale en Recherche Chimique et Biomoléculaire sur le Microbiome et son Impact Sur la Santé Métabolique et la Nutrition (UMI-MicroMeNu), Université Laval and Consiglio Nazionale delle Ricerche, Istituto di Chimica Biomolecolare, Via Campi Flegrei 34, 80078 Pozzuoli, (NA) Italy
| | - Alain Veilleux
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
| | - Frédéric Raymond
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), École de nutrition, Université Laval, 2440, boulevard Hochelaga, Québec, G1V 0A6 Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Quebec, Canada
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6
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Dugas C, Laberee L, Perron J, St-Arnaud G, Richard V, Perreault V, Leblanc N, Marc I, Di Marzo V, Doyen A, Veilleux A, Robitaille J. Gestational Diabetes Mellitus, Human Milk Composition, and Infant Growth. Breastfeed Med 2023; 18:14-22. [PMID: 36409543 DOI: 10.1089/bfm.2022.0085] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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] [Indexed: 11/23/2022]
Abstract
Background: Gestational diabetes mellitus (GDM) is known to affect human milk composition. Aims of this study were to compare macronutrient and energy content of human milk of women with (GDM+) and without GDM (GDM-), to assess the association between maternal health and human milk macronutrient and energy content and association between human milk macronutrient and energy content and infant growth. Study Design and Methods: Two months after delivery, hindmilk samples were collected. Triglyceride (TG), lactose, and protein content of human milk were measured. An oral glucose tolerance test was performed. Infant weight and length at birth and 2 months were collected. Weight-for-age (WAZ) and weight-for-length z-scores were calculated. Results: Twenty-four GDM+ and 29 GDM- women were included. Protein, lactose, and energy content of human milk were similar between groups. TG concentration was higher in GDM+ than in GDM- women (6.3 ± 2.0 versus 5.3 ± 1.2, p = 0.04). This difference was no longer significant after adjustment for maternal age and infant sex (p = 0.23). Maternal age was associated with TG (r = 0.28, p = 0.04) and lactose (r = -0.30, p = 0.03), while fasting glucose was associated with proteins (r = 0.30, p = 0.03) and tended to be associated with TG (r = 0.27, p = 0.05) and energy (r = 0.24, p = 0.08). TG levels in human milk were associated with weight (β: 0.26, 95% confidence interval [CI]: 0.02 to 0.50) and WAZ (β: 0.40, 95% CI: 0.05 to 0.75) at 2 months among children unexposed (GDM-) to GDM, but not among children exposed (GDM+) Conclusions: In conclusion, GDM status, maternal age, and fasting glucose level were associated with human milk composition. Finally, TG in human milk was associated with infant growth among GDM- children but not among GDM+ children. ClinicalTrials.gov NCT02872402.
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Affiliation(s)
- Camille Dugas
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada.,School of Nutrition, Université Laval, Quebec City, Canada
| | | | - Julie Perron
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada
| | - Gabrielle St-Arnaud
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada.,School of Nutrition, Université Laval, Quebec City, Canada
| | - Véronique Richard
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada
| | | | - Nadine Leblanc
- School of Nutrition, Université Laval, Quebec City, Canada.,Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, Canada
| | - Isabelle Marc
- Department of Pediatrics, Université Laval, Centre de recherche du CHU de Quebec, Quebec, Canada
| | - Vincenzo Di Marzo
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada.,Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, Canada.,Heart and Lung Research Institute of Université Laval, Quebec City, Canada
| | - Alain Doyen
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada.,Department of Food Sciences, Université Laval, Quebec City, Canada
| | - Alain Veilleux
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada.,School of Nutrition, Université Laval, Quebec City, Canada.,Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, Canada
| | - Julie Robitaille
- Centre de recherche Nutrition, Santé et Société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, Canada.,School of Nutrition, Université Laval, Quebec City, Canada
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7
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Guevara Agudelo FA, Leblanc N, Bourdeau-Julien I, St-Arnaud G, Lacroix S, Martin C, Flamand N, Veilleux A, Di Marzo V, Raymond F. Impact of selenium on the intestinal microbiome-eCBome axis in the context of diet-related metabolic health in mice. Front Immunol 2022; 13:1028412. [DOI: 10.3389/fimmu.2022.1028412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Accepted: 10/25/2022] [Indexed: 11/13/2022] Open
Abstract
Dietary micronutrients act at the intestinal level, thereby influencing microbial communities, the host endocannabinoidome, and immune and anti-oxidative response. Selenium (Se) is a trace element with several health benefits. Indeed, Se plays an important role in the regulation of enzymes with antioxidative and anti-inflammatory activity as well as indicators of the level of oxidative stress, which, together with chronic low-grade inflammation, is associated to obesity. To understand how Se variations affect diet-related metabolic health, we fed female and male mice for 28 days with Se-depleted or Se-enriched diets combined with low- and high-fat/sucrose diets. We quantified the plasma and intestinal endocannabinoidome, profiled the gut microbiota, and measured intestinal gene expression related to the immune and the antioxidant responses in the intestinal microenvironment. Overall, we show that intestinal segment-specific microbiota alterations occur following high-fat or low-fat diets enriched or depleted in Se, concomitantly with modifications of circulating endocannabinoidome mediators and changes in cytokine and antioxidant enzyme expression. Specifically, Se enrichment was associated with increased circulating plasma levels of 2-docosahexaenoyl-glycerol (2-DHG), a mediator with putative beneficial actions on metabolism and inflammation. Others eCBome mediators also responded to the diets. Concomitantly, changes in gut microbiota were observed in Se-enriched diets following a high-fat diet, including an increase in the relative abundance of Peptostreptococcaceae and Lactobacillaceae. With respect to the intestinal immune response and anti-oxidative gene expression, we observed a decrease in the expression of proinflammatory genes Il1β and Tnfα in high-fat Se-enriched diets in caecum, while in ileum an increase in the expression levels of the antioxidant gene Gpx4 was observed following Se depletion. The sex of the animal influenced the response to the diet of both the gut microbiota and endocannabinoid mediators. These results identify Se as a regulator of the gut microbiome and endocannabinoidome in conjunction with high-fat diet, and might be relevant to the development of new nutritional strategies to improve metabolic health and chronic low-grade inflammation associated to metabolic disorders.
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8
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Mapepe P, Lachance G, Jamshidi A, Castonguay-Paradis S, Veilleux A, Marette A, Bergeron A, Fradet Y, Raymond F, Robitaille K, Fradet V. Relations entre habitudes de vie, microbiote intestinal et risque de cancer de la prostate. Rev Epidemiol Sante Publique 2022. [DOI: 10.1016/j.respe.2022.06.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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9
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Forteza F, Bourdeau-Julien I, Nguyen GQ, Guevara Agudelo FA, Rochefort G, Parent L, Rakotoarivelo V, Feutry P, Martin C, Perron J, Lamarche B, Flamand N, Veilleux A, Billaut F, Di Marzo V, Raymond F. Influence of diet on acute endocannabinoidome mediator levels post exercise in active women, a crossover randomized study. Sci Rep 2022; 12:8568. [PMID: 35595747 PMCID: PMC9122896 DOI: 10.1038/s41598-022-10757-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Accepted: 04/08/2022] [Indexed: 12/20/2022] Open
Abstract
The extended endocannabinoid system, also termed endocannabinoidome, participates in multiple metabolic functions in health and disease. Physical activity can both have an acute and chronic impact on endocannabinoid mediators, as does diet. In this crossover randomized controlled study, we investigated the influence of diet on the peripheral response to acute maximal aerobic exercise in a sample of active adult women (n = 7) with no underlying metabolic conditions. We compared the impact of 7-day standardized Mediterranean diet (MedDiet) and control diet inspired by Canadian macronutrient intake (CanDiet) on endocannabinoidome and short-chain fatty acid metabolites post maximal aerobic exercise. Overall, plasmatic endocannabinoids, their congeners and some polyunsaturated fatty acids increased significantly post maximal aerobic exercise upon cessation of exercise and recovered their initial values within 1 h after exercise. Most N-acylethanolamines and polyunsaturated fatty acids increased directly after exercise when the participants had consumed the MedDiet, but not when they had consumed the CanDiet. This impact was different for monoacylglycerol endocannabinoid congeners, which in most cases reacted similarly to acute exercise while on the MedDiet or the CanDiet. Fecal microbiota was only minimally affected by the diet in this cohort. This study demonstrates that endocannabinoidome mediators respond to acute maximal aerobic exercise in a way that is dependent on the diet consumed in the week prior to exercise.
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Affiliation(s)
- Fabiola Forteza
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Isabelle Bourdeau-Julien
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Guillaume Q Nguyen
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Fredy Alexander Guevara Agudelo
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Gabrielle Rochefort
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Lydiane Parent
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Volatiana Rakotoarivelo
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Perrine Feutry
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada
| | - Cyril Martin
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Julie Perron
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Benoît Lamarche
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Quebec, Canada
| | - Nicolas Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec, Canada.,Département de médecine, Faculté de Médecine, Université Laval, Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Alain Veilleux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - François Billaut
- Département de kinésiologie, Faculté de médecine, Université Laval, Quebec, Canada
| | - Vincenzo Di Marzo
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada.,Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Quebec, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Quebec, Canada.,Département de médecine, Faculté de Médecine, Université Laval, Quebec, Canada.,Joint International Unit on Chemical and Biomolecular Research on the Microbiome and its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Quebec, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada
| | - Frédéric Raymond
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Quebec, Canada. .,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Quebec, Canada. .,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Quebec, Canada.
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10
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Shen M, Manca C, Suriano F, Nallabelli N, Pechereau F, Allam-Ndoul B, Iannotti FA, Flamand N, Veilleux A, Cani PD, Silvestri C, Di Marzo V. Three of a Kind: Control of the Expression of Liver-Expressed Antimicrobial Peptide 2 (LEAP2) by the Endocannabinoidome and the Gut Microbiome. Molecules 2021; 27:molecules27010001. [PMID: 35011234 PMCID: PMC8746324 DOI: 10.3390/molecules27010001] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Revised: 12/16/2021] [Accepted: 12/16/2021] [Indexed: 02/07/2023]
Abstract
The endocannabinoidome (expanded endocannabinoid system, eCBome)-gut microbiome (mBIome) axis plays a fundamental role in the control of energy intake and processing. The liver-expressed antimicrobial peptide 2 (LEAP2) is a recently identified molecule acting as an antagonist of the ghrelin receptor and hence a potential effector of energy metabolism, also at the level of the gastrointestinal system. Here we investigated the role of the eCBome-gut mBIome axis in the control of the expression of LEAP2 in the liver and, particularly, the intestine. We confirm that the small intestine is a strong contributor to the circulating levels of LEAP2 in mice, and show that: (1) intestinal Leap2 expression is profoundly altered in the liver and small intestine of 13 week-old germ-free (GF) male mice, which also exhibit strong alterations in eCBome signaling; fecal microbiota transfer (FMT) from conventionally raised to GF mice completely restored normal Leap2 expression after 7 days from this procedure; in 13 week-old female GF mice no significant change was observed; (2) Leap2 expression in organoids prepared from the mouse duodenum is elevated by the endocannabinoid noladin ether, whereas in human Caco-2/15 epithelial intestinal cells it is elevated by PPARγ activation by rosiglitazone; (3) Leap2 expression is elevated in the ileum of mice with either high-fat diet—or genetic leptin signaling deficiency—(i.e., ob/ob and db/db mice) induced obesity. Based on these results, we propose that LEAP2 originating from the small intestine may represent a player in eCBome- and/or gut mBIome-mediated effects on food intake and energy metabolism.
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Affiliation(s)
- Mélissa Shen
- Quebec Heart and Lung Institute Research Centre, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada; (M.S.); (C.M.); (N.N.); (N.F.)
| | - Claudia Manca
- Quebec Heart and Lung Institute Research Centre, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada; (M.S.); (C.M.); (N.N.); (N.F.)
- Unité Mixte Internationale en Recherche Chimique et Biomoléculaire du Microbiome et son Impact sur la Santé Métabolique et la Nutrition, Université Laval, Quebec City, QC G1V 0A6, Canada
| | - Francesco Suriano
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute (LDRI), Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium; (F.S.); (P.D.C.)
| | - Nayudu Nallabelli
- Quebec Heart and Lung Institute Research Centre, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada; (M.S.); (C.M.); (N.N.); (N.F.)
| | - Florent Pechereau
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), École de Nutrition (FSAA), Université Laval, Quebec City, QC G1V 0A6, Canada; (F.P.); (B.A.-N.); (A.V.)
| | - Bénédicte Allam-Ndoul
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), École de Nutrition (FSAA), Université Laval, Quebec City, QC G1V 0A6, Canada; (F.P.); (B.A.-N.); (A.V.)
| | - Fabio Arturo Iannotti
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, 80078 Pozzuoli, Italy;
| | - Nicolas Flamand
- Quebec Heart and Lung Institute Research Centre, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada; (M.S.); (C.M.); (N.N.); (N.F.)
| | - Alain Veilleux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), École de Nutrition (FSAA), Université Laval, Quebec City, QC G1V 0A6, Canada; (F.P.); (B.A.-N.); (A.V.)
| | - Patrice D. Cani
- Metabolism and Nutrition Research Group, Louvain Drug Research Institute (LDRI), Walloon Excellence in Life Sciences and BIOtechnology (WELBIO), UCLouvain, Université Catholique de Louvain, 1200 Brussels, Belgium; (F.S.); (P.D.C.)
| | - Cristoforo Silvestri
- Quebec Heart and Lung Institute Research Centre, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada; (M.S.); (C.M.); (N.N.); (N.F.)
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), École de Nutrition (FSAA), Université Laval, Quebec City, QC G1V 0A6, Canada; (F.P.); (B.A.-N.); (A.V.)
- Correspondence: (C.S.); (V.D.); Tel.: +1-418-656-8711 (ext. 7229) (C.S.); +1-418-656-8711 (ext. 7263) (V.D.)
| | - Vincenzo Di Marzo
- Quebec Heart and Lung Institute Research Centre, Department of Medicine, Faculty of Medicine, Université Laval, Quebec City, QC G1V 0A6, Canada; (M.S.); (C.M.); (N.N.); (N.F.)
- Unité Mixte Internationale en Recherche Chimique et Biomoléculaire du Microbiome et son Impact sur la Santé Métabolique et la Nutrition, Université Laval, Quebec City, QC G1V 0A6, Canada
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), École de Nutrition (FSAA), Université Laval, Quebec City, QC G1V 0A6, Canada; (F.P.); (B.A.-N.); (A.V.)
- Endocannabinoid Research Group, Institute of Biomolecular Chemistry, Consiglio Nazionale delle Ricerche, 80078 Pozzuoli, Italy;
- Canada Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Université Laval, Quebec City, QC G1V 0A6, Canada
- Correspondence: (C.S.); (V.D.); Tel.: +1-418-656-8711 (ext. 7229) (C.S.); +1-418-656-8711 (ext. 7263) (V.D.)
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11
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Savard C, Lemieux S, Plante AS, Gagnon M, Leblanc N, Veilleux A, Tchernof A, Morisset AS. Longitudinal changes in circulating concentrations of inflammatory markers throughout pregnancy: are there associations with diet and weight status? Appl Physiol Nutr Metab 2021; 47:287-295. [PMID: 34767478 DOI: 10.1139/apnm-2021-0395] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The natural inflammation occurring during pregnancy can, under certain conditions, be associated with adverse pregnancy outcomes. This study aimed to: 1) quantify changes in circulating concentrations of leptin, adiponectin, interleukin-6 (IL-6) and C-reactive protein (CRP) across trimesters of pregnancy, according to pre-pregnancy body mass index (ppBMI); and 2) examine the trimester-specific associations between the inflammatory markers' concentrations, a Mediterranean diet score (MDS) and the dietary inflammatory index (DII). We measured leptin, adiponectin and IL-6 by ELISA, and CRP by high-sensitivity immunonephelometry, in blood samples from 79 pregnant women (age: 32.1 ± 3.7 years; ppBMI: 25.7 ± 5.8 kg/m2). Three web-based 24h recalls were completed at each trimester and used to compute the MDS and the DII. CRP concentrations remained stable across trimesters, whereas concentrations of leptin and IL-6 increased, and adiponectin concentrations decreased (p<0.001). Changes in leptin and adiponectin concentrations also differed according to ppBMI categories (p<0.05). As for the dietary scores, the only significant association was observed in the second trimester between leptin concentrations and the MDS (r=-0.26, p<0.05). In conclusion, ppBMI and the progression of pregnancy itself probably supplant the potential associations between diet and the inflammation occurring during that period. Novelty: • Circulating leptin and IL-6 concentrations increased across trimesters whereas CRP was stable, and adiponectin decreased. • Variations in circulating leptin and adiponectin concentrations differed by ppBMI categories. • Very few associations were observed between dietary scores and inflammatory markers.
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Affiliation(s)
- Claudia Savard
- Laval University, 4440, School of Nutrition, Quebec, Quebec, Canada;
| | - Simone Lemieux
- Laval University, School of Nutrition, INAF, Pavillon des services, 2440 Boulevard Hochelaga, Quebec, Quebec, Canada, G1V 0A6;
| | | | - Marianne Gagnon
- Laval University, 4440, School of Nutrition, Quebec, Quebec, Canada.,CHU de Québec-Université Laval, 36896, Endocrinology and Nephrology Unit, Quebec, Quebec, Canada.,Laval University, 4440, Institute of Nutrition and Functional Foods, Quebec, Quebec, Canada;
| | - Nadine Leblanc
- Laval University, Department of Food Science and Nutrition, Quebec, Quebec, Canada;
| | - Alain Veilleux
- Laval University, 4440, School of Nutrition, Quebec, Quebec, Canada;
| | - André Tchernof
- Laval University, Laval University Medical Center, Quebec, Quebec, Canada.,Laval University, Institute of Nutrition and Functional Foods (INAF), Quebec, Quebec, Canada;
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12
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Castonguay-Paradis S, Lacroix S, Rochefort G, Parent L, Perron J, Martin C, Lamarche B, Raymond F, Flamand N, Di Marzo V, Veilleux A. Dietary fatty acid intake and gut microbiota determine circulating endocannabinoidome signaling beyond the effect of body fat. Sci Rep 2020; 10:15975. [PMID: 32994521 PMCID: PMC7524791 DOI: 10.1038/s41598-020-72861-3] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2020] [Accepted: 08/27/2020] [Indexed: 02/08/2023] Open
Abstract
The endocannabinoidome encompasses several fatty acid (FA)-derived mediators, including the endocannabinoid anandamide (AEA) and 2-arachidonoyl-glycerol (2-AG), which served as targets for anti-obesity drug development, and their congener N-acyl-ethanolamines (NAEs) and 2-monoacyl-glycerols (2‑MAGs), which are involved in food intake and energy metabolism. Body weight and fat distribution have been suggested as determinants of peripheral endocannabinoid levels. We aimed at investigating factors, beyond body fat composition, that are associated with circulating NAE and 2-MAG levels in a heterogeneous human population. Plasma NAEs and 2-MAGs were measured using LC–MS/MS in a cross-sectional sample of healthy men and women (n = 195) covering a wide range of BMI and individuals before and after a 2-day Mediterranean diet (n = 21). Circulating levels of all 2-MAGs and NAEs, other than N-oleoyl-ethanolamine (OEA), correlated with body fat mass and visceral adipose tissue (0.26 < r < 0.54). NAE levels were elevated in individuals with elevated fat mass, while 2-MAGs were increased in individuals with predominantly visceral body fat distribution. Dietary intakes of specific FAs were associated with 2-AG and omega-3-FA-derived NAEs or 2-MAGs, irrespective of the body fat distribution. Some gut bacterial families (e.g. Veillonellaceae, Peptostreptococcaceae and Akkermansiaceae) were associated with variations in most NAEs or omega-3-FA-derived 2‑MAGs, independently of fat mass and dietary FA intake. Finally, a 2-day Mediterranean diet intervention increased circulating levels of NAEs and 2-MAGs in agreement with changes in FA intake (p < 0.01). Self-reported intake and short-term dietary intervention increased in oleic acid and EPA and DHA intake as well as certain gut microbiota taxa are associated to circulating NAEs and 2‑MAGs independently of adiposity measures, thus highlighting the potential importance of these variables in determining endocannabinoidome signaling in humans.
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Affiliation(s)
- Sophie Castonguay-Paradis
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Sébastien Lacroix
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Gabrielle Rochefort
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Lydiane Parent
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Julie Perron
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Cyril Martin
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Université Laval, Québec, QC, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Benoît Lamarche
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada
| | - Frédéric Raymond
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Nicolas Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Université Laval, Québec, QC, Canada.,Département de médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Vincenzo Di Marzo
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada.,Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec (IUCPQ), Université Laval, Québec, QC, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada.,Département de médecine, Faculté de Médecine, Université Laval, Québec, QC, Canada.,Joint International Unit on Chemical and Biomolecular Research on the Microbiome and Its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Pozzuoli, Italy.,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada
| | - Alain Veilleux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, 2440, boulevard Hochelaga, Québec, QC, G1V 0A6, Canada. .,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation (FSAA), Université Laval, Québec, QC, Canada. .,Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Université Laval, Québec, QC, Canada.
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13
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Rochefort G, Provencher V, Castonguay-Paradis S, Perron J, Lacroix S, Martin C, Flamand N, Di Marzo V, Veilleux A. Intuitive eating is associated with elevated levels of circulating omega-3-polyunsaturated fatty acid-derived endocannabinoidome mediators. Appetite 2020; 156:104973. [PMID: 32971226 DOI: 10.1016/j.appet.2020.104973] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 09/04/2020] [Accepted: 09/13/2020] [Indexed: 12/11/2022]
Abstract
The regulation of food intake and eating behaviours involves interactions between different systems. The endocannabinoidome, comprising several fatty acid-derived mediators, plays a central role in the regulation of food intake. Alterations of this system have been suggested to intervene in the aetiology of eating disorders. This study aimed to examine the associations between non-pathological eating behaviours and circulating endocannabinoidome mediators in a heterogeneous human population. Plasma 2-monoacyl-glycerol and N-acyl-ethanolamine congeners were measured by LC-MS/MS in a sample of 190 men and women. Eating behaviours were assessed using the Three-Factor Eating Questionnaire (TFEQ) and the Intuitive Eating Scale-2 (IES-2). Following adjustment for body mass index and age, plasma levels of omega-3 polyunsaturated fatty acid-derived 2-monoacyl-glycerols, 2-eicosapentaenoyl-glycerol (2-EPG) and 2-docosapentaenoyl-glycerol (2-DPG), were associated with higher intuitive eating scores (0.15 ≤ rho ≤ 0.20; p < 0.05). These associations were independent of the dietary intake of the fatty acid precursors of these 2-monoacyl-glycerols. However, almost no association was found between plasma levels of N-acyl-ethanolamine congeners and the TFEQ or the IES-2 scores. The results of the present study suggest the association of 2-monoacyl-glycerols, especially 2-EPG and 2-DPG, in the regulation of intuitive eating and the potential implication therein of bioactive lipids.
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Affiliation(s)
- Gabrielle Rochefort
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; École de Nutrition, Faculté des Sciences de L'agriculture et de L'alimentation (FSAA), Université Laval, 2425 Rue de L'Agriculture, Québec, G1V 0A6, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Véronique Provencher
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; École de Nutrition, Faculté des Sciences de L'agriculture et de L'alimentation (FSAA), Université Laval, 2425 Rue de L'Agriculture, Québec, G1V 0A6, QC, Canada
| | - Sophie Castonguay-Paradis
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; École de Nutrition, Faculté des Sciences de L'agriculture et de L'alimentation (FSAA), Université Laval, 2425 Rue de L'Agriculture, Québec, G1V 0A6, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Julie Perron
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Sébastien Lacroix
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Cyril Martin
- Centre de Recherche de L'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), 2725 Chemin Sainte-Foy, Québec, G1V 4G5, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Nicolas Flamand
- Centre de Recherche de L'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), 2725 Chemin Sainte-Foy, Québec, G1V 4G5, QC, Canada; Département de Médecine, Faculté de Médecine, Université Laval, 1050 Avenue de La Médecine, Québec, G1V 0A6, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Vincenzo Di Marzo
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; Centre de Recherche de L'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), 2725 Chemin Sainte-Foy, Québec, G1V 4G5, QC, Canada; École de Nutrition, Faculté des Sciences de L'agriculture et de L'alimentation (FSAA), Université Laval, 2425 Rue de L'Agriculture, Québec, G1V 0A6, QC, Canada; Département de Médecine, Faculté de Médecine, Université Laval, 1050 Avenue de La Médecine, Québec, G1V 0A6, QC, Canada; Joint International Unit on Chemical and Biomolecular Research on the Microbiome and Its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Institute of Biomolecular Chemistry, CNR, Pozzuoli, Italy; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada
| | - Alain Veilleux
- Centre Nutrition, Santé et Société (NUTRISS), Institut sur La Nutrition et Les Aliments Fonctionnels (INAF), 2440 Boulevard Hochelaga, Québec, G1V 0A6, QC, Canada; École de Nutrition, Faculté des Sciences de L'agriculture et de L'alimentation (FSAA), Université Laval, 2425 Rue de L'Agriculture, Québec, G1V 0A6, QC, Canada; Canada Research Excellence Chair in the Microbiome-Endocannabinoidome Mediators Axis in Metabolic Health (CERC-MEND), Canada.
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14
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Archambault AS, Turcotte C, Dumais E, Martin C, Blanchet MR, Bissonnette E, Ohashi N, Yamamoto K, Itoh T, Laviolette M, Veilleux A, Boulet LP, Di Marzo V, Flamand N. Endocannabinoid hydrolysis inhibition unmasks that unsaturated fatty acids induce a robust synthesis of 2-arachidonoyl-glycerol and its congeners in human myeloid leukocytes. The Journal of Immunology 2020. [DOI: 10.4049/jimmunol.204.supp.144.28] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
The endocannabinoid 2-arachidonoyl-gycerol (2-AG) modulates immune responses by activating cannabinoid receptors or through its multiple metabolites, notably eicosanoids. Thus, 2-AG hydrolysis inhibition might represent an interesting anti-inflammatory strategy that would simultaneously increase the levels of 2-AG and decrease those of eicosanoids. Accordingly, 2-AG hydrolysis inhibition increased 2-AG half-life in neutrophils. Under such setting, neutrophils, eosinophils and monocytes synthesized large amounts of 2-AG and other monoacylglycerols (MAGs) in response to arachidonic acid and other unsaturated fatty acids (UFAs). Arachidonic acid and UFAs were ~1000-fold more potent than GPCR agonists at stimulating MAG biosynthesis. Triascin C and thimerosal, which respectively inhibit fatty acyl-CoA synthases and acyl-CoA transferases, prevented the UFA-induced MAG synthesis, implying glycerolipid remodeling is essential in this process. 2-AG and other MAG biosynthesis was preceded by that of the corresponding lysophosphatidic acid (LPA). However, we could not directly implicate LPA dephosphorylation in MAG biosynthesis. While the GPCR agonists PAF, fMLP and LTB4 poorly or did not induced 2-AG biosynthesis, they inhibited that induced by AA by 25–50%, suggesting that 2-AG biosynthesis is decreased when leukocytes are surrounded by a pro-inflammatory entourage. Our data conclusively indicate that human leukocytes use AA and UFAs to biosynthesize biologically significant concentrations of 2-AG and other MAGs and that hijacking the immune system with 2-AG hydrolysis inhibitors might diminish inflammation in humans.
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Affiliation(s)
| | - Caroline Turcotte
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Elizabeth Dumais
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | | | - Marie-Renée Blanchet
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Elyse Bissonnette
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Nami Ohashi
- 3Showa Pharmaceutical University, Laboratory of Drug Design and Medicinal Chemistry, Japan
| | - Keiko Yamamoto
- 3Showa Pharmaceutical University, Laboratory of Drug Design and Medicinal Chemistry, Japan
| | - Toshimasa Itoh
- 3Showa Pharmaceutical University, Laboratory of Drug Design and Medicinal Chemistry, Japan
| | - Michel Laviolette
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Alain Veilleux
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Louis-Philippe Boulet
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Vincenzo Di Marzo
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
| | - Nicolas Flamand
- 1Quebec Heart and Lung Institute, Canada
- 2Laval University, School of Medicine, Canada
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15
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Turcotte C, Archambault AS, Dumais É, Martin C, Blanchet MR, Bissonnette E, Ohashi N, Yamamoto K, Itoh T, Laviolette M, Veilleux A, Boulet LP, Di Marzo V, Flamand N. Endocannabinoid hydrolysis inhibition unmasks that unsaturated fatty acids induce a robust biosynthesis of 2-arachidonoyl-glycerol and its congeners in human myeloid leukocytes. FASEB J 2020; 34:4253-4265. [PMID: 32012340 DOI: 10.1096/fj.201902916r] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [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: 11/18/2019] [Revised: 01/07/2020] [Accepted: 01/07/2020] [Indexed: 12/12/2022]
Abstract
The endocannabinoid (eCB) 2-arachidonoyl-gycerol (2-AG) modulates immune responses by activating cannabinoid receptors or through its multiple metabolites, notably eicosanoids. Thus, 2-AG hydrolysis inhibition might represent an interesting anti-inflammatory strategy that would simultaneously increase the levels of 2-AG and decrease those of eicosanoids. Accordingly, 2-AG hydrolysis inhibition increased 2-AG half-life in neutrophils. Under such setting, neutrophils, eosinophils, and monocytes synthesized large amounts of 2-AG and other monoacylglycerols (MAGs) in response to arachidonic acid (AA) and other unsaturated fatty acids (UFAs). Arachidonic acid and UFAs were ~1000-fold more potent than G protein-coupled receptor (GPCR) agonists. Triascin C and thimerosal, which, respectively, inhibit fatty acyl-CoA synthases and acyl-CoA transferases, prevented the UFA-induced MAG biosynthesis, implying glycerolipid remodeling. 2-AG and other MAG biosynthesis was preceded by that of the corresponding lysophosphatidic acid (LPA). However, we could not directly implicate LPA dephosphorylation in MAG biosynthesis. While GPCR agonists poorly induced 2-AG biosynthesis, they inhibited that induced by AA by 25%-50%, suggesting that 2-AG biosynthesis is decreased when leukocytes are surrounded by a pro-inflammatory entourage. Our data strongly indicate that human leukocytes use AA and UFAs to biosynthesize biologically significant concentrations of 2-AG and other MAGs and that hijacking the immune system with 2-AG hydrolysis inhibitors might diminish inflammation in humans.
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Affiliation(s)
- Caroline Turcotte
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Anne-Sophie Archambault
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Élizabeth Dumais
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Cyril Martin
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Marie-Renée Blanchet
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Elyse Bissonnette
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Nami Ohashi
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Japan
| | - Keiko Yamamoto
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Japan
| | - Toshimasa Itoh
- Laboratory of Drug Design and Medicinal Chemistry, Showa Pharmaceutical University, Machida, Japan
| | - Michel Laviolette
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Alain Veilleux
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec City, QC, Canada
| | - Louis-Philippe Boulet
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
| | - Vincenzo Di Marzo
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada.,École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec City, QC, Canada.,Joint International Unit between the National Research Council (CNR) of Italy and Université Laval on Chemical and Biomolecular Research on the Microbiome and its Impact on Metabolic Health and Nutrition (UMI-MicroMeNu), Institute of Biomolecular Chemistry, CNR, Pozzuoli, Italy
| | - Nicolas Flamand
- Centre de recherche de l'Institut universitaire de cardiologie et de pneumologie de Québec, Département de médecine, Faculté de médecine, Université Laval, Québec City, QC, Canada
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16
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Manca C, Boubertakh B, Leblanc N, Deschênes T, Lacroix S, Martin C, Houde A, Veilleux A, Flamand N, Muccioli GG, Raymond F, Cani PD, Di Marzo V, Silvestri C. Germ-free mice exhibit profound gut microbiota-dependent alterations of intestinal endocannabinoidome signaling. J Lipid Res 2020; 61:70-85. [PMID: 31690638 PMCID: PMC6939599 DOI: 10.1194/jlr.ra119000424] [Citation(s) in RCA: 73] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2019] [Revised: 10/26/2019] [Indexed: 01/10/2023] Open
Abstract
The gut microbiota is a unique ecosystem of microorganisms interacting with the host through several biochemical mechanisms. The endocannabinoidome (eCBome), a complex signaling system including the endocannabinoid system, approximately 50 receptors and metabolic enzymes, and more than 20 lipid mediators with important physiopathologic functions, modulates gastrointestinal tract function and may mediate host cell-microbe communications there. Germ-free (GF) mice, which lack an intestinal microbiome and so differ drastically from conventionally raised (CR) mice, offer a unique opportunity to explore the eCBome in a microbe-free model and in the presence of a reintroduced functional gut microbiome through fecal microbiota transplant (FMT). We aimed to gain direct evidence for a link between the microbiome and eCBome systems by investigating eCBome alterations in the gut in GF mice before and after FMT. Basal eCBome gene expression and lipid profiles were measured in various segments of the intestine of GF and CR mice at juvenile and adult ages using targeted quantitative PCR transcriptomics and LC-MS/MS lipidomics. GF mice exhibited age-dependent modifications in intestinal eCBome gene expression and lipid mediator levels. FMT from CR donor mice to age-matched GF male mice reversed several of these alterations, particularly in the ileum and jejunum, after only 1 week, demonstrating that the gut microbiome directly impacts the host eCBome and providing a cause-effect relationship between the presence or absence of intestinal microbes and eCBome signaling. These results open the way to new studies investigating the mechanisms through which intestinal microorganisms exploit eCBome signaling to exert some of their physiopathologic functions.
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Affiliation(s)
- Claudia Manca
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Département de Médecine, Faculté de Médecine, Université Laval, Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada
| | - Besma Boubertakh
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Département de Médecine, Faculté de Médecine, Université Laval, Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada
| | - Nadine Leblanc
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada
| | - Thomas Deschênes
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada; École de Nutrition, Faculté des Sciences de l'Agriculture et de l'Alimentation (FSAA), Université Laval, Québec, Canada
| | - Sebastien Lacroix
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada
| | - Cyril Martin
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada
| | - Alain Houde
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada
| | - Alain Veilleux
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada; École de Nutrition, Faculté des Sciences de l'Agriculture et de l'Alimentation (FSAA), Université Laval, Québec, Canada
| | - Nicolas Flamand
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Département de Médecine, Faculté de Médecine, Université Laval, Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada
| | - Giulio G Muccioli
- Louvain Drug Research Institute (LDRI), Bioanalysis and Pharmacology of Bioactive Lipids Research Group, UCLouvain (Université Catholique de Louvain), Brussels, Belgium
| | - Frédéric Raymond
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada; École de Nutrition, Faculté des Sciences de l'Agriculture et de l'Alimentation (FSAA), Université Laval, Québec, Canada
| | - Patrice D Cani
- Louvain Drug Research Institute (LDRI), Bioanalysis and Pharmacology of Bioactive Lipids Research Group, UCLouvain (Université Catholique de Louvain), Brussels, Belgium; Walloon Excellence in Life Sciences and Biotechnology (WELBIO), Metabolism and Nutrition Research Group, UCLouvain (Université Catholique de Louvain), Brussels, Belgium
| | - Vincenzo Di Marzo
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Département de Médecine, Faculté de Médecine, Université Laval, Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada; Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Québec, Canada; École de Nutrition, Faculté des Sciences de l'Agriculture et de l'Alimentation (FSAA), Université Laval, Québec, Canada
| | - Cristoforo Silvestri
- Centre de Recherche de l'Institut Universitaire de Cardiologie et de Pneumologie de Québec (IUCPQ), Québec, Canada; Département de Médecine, Faculté de Médecine, Université Laval, Québec, Canada; Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health (CERC-MEND), Québec, Canada.
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Lalande C, Drouin-Chartier JP, Tremblay AJ, Couture P, Veilleux A. Plasma biomarkers of small intestine adaptations in obesity-related metabolic alterations. Diabetol Metab Syndr 2020; 12:31. [PMID: 32292494 PMCID: PMC7144049 DOI: 10.1186/s13098-020-00530-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2019] [Accepted: 03/13/2020] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Evidence suggests that pathophysiological conditions such as obesity and type 2 diabetes (T2D) are associated with morphologic and metabolic alterations in the small intestinal mucosa. Exploring these alterations generally requires invasive methods, limiting data acquisition to subjects with enteropathies or undergoing bariatric surgery. We aimed to evaluate small intestine epithelial cell homeostasis in a cohort of men covering a wide range of adiposity and glucose homoeostasis statuses. METHODS Plasma levels of citrulline, a biomarker of enterocyte mass, and I-FABP, a biomarker of enterocyte death, were measured by UHPLC‑MS and ELISA in 154 nondiabetic men and 67 men with a T2D diagnosis. RESULTS Plasma citrulline was significantly reduced in men with insulin resistance and T2D compared to insulin sensitive men. Decreased citrulline levels were, however, not observed in men with uncontrolled metabolic parameters during T2D. Plasma I-FABP was significantly higher in men with T2D, especially in presence of uncontrolled glycemic and lipid profile parameters. Integration of both parameters, which estimate enterocyte turnover, was associated with glucose homeostasis as well as with T2D diagnosis. Differences in biomarkers levels were independent of age and BMI and glucose filtration rates. CONCLUSIONS Our study supports a decreased functional enterocyte mass and an increased enterocyte death rate in presence of metabolic alterations but emphasizes that epithelial cell homeostasis is especially altered in presence of severe insulin resistance and T2D. The marked changes in small intestine cellularity observed in obesity and diabetes are thus suggested to be part of gut dysfunctions, mainly at an advanced stage of the disease.
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Affiliation(s)
- Catherine Lalande
- École de nutrition, Faculté des sciences de l’agriculture et de l’alimentation, Université Laval, 2440, boulevard Hochelaga, Québec, QC G1V 0A6 Canada
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC Canada
| | - Jean-Philippe Drouin-Chartier
- École de nutrition, Faculté des sciences de l’agriculture et de l’alimentation, Université Laval, 2440, boulevard Hochelaga, Québec, QC G1V 0A6 Canada
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC Canada
| | - André J. Tremblay
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC Canada
| | - Patrick Couture
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC Canada
- Centre des maladies lipidiques, Centre Hospitalier Universitaire (CHU) de Québec, Québec, QC Canada
| | - Alain Veilleux
- École de nutrition, Faculté des sciences de l’agriculture et de l’alimentation, Université Laval, 2440, boulevard Hochelaga, Québec, QC G1V 0A6 Canada
- Centre Nutrition, santé et société (NUTRISS), Institut sur la nutrition et les aliments fonctionnels (INAF), Université Laval, Québec, QC Canada
- Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, QC Canada
- Canada Excellence Research Chair in the Microbiome-Endocannabinoidome Axis in Metabolic Health, Québec, QC Canada
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Laperle J, Hébert-Deschamps S, Raby J, de Lima Morais DA, Barrette M, Bujold D, Bastin C, Robert MA, Nadeau JF, Harel M, Nordell-Markovits A, Veilleux A, Bourque G, Jacques PÉ. The epiGenomic Efficient Correlator (epiGeEC) tool allows fast comparison of user datasets with thousands of public epigenomic datasets. Bioinformatics 2019; 35:674-676. [PMID: 30052804 PMCID: PMC6378939 DOI: 10.1093/bioinformatics/bty655] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2018] [Revised: 06/30/2018] [Accepted: 07/23/2018] [Indexed: 01/19/2023] Open
Abstract
Summary In recent years, major initiatives such as the International Human Epigenome Consortium have generated thousands of high-quality genome-wide datasets for a large variety of assays and cell types. This data can be used as a reference to assess whether the signal from a user-provided dataset corresponds to its expected experiment, as well as to help reveal unexpected biological associations. We have developed the epiGenomic Efficient Correlator (epiGeEC) tool to enable genome-wide comparisons of very large numbers of datasets. A public Galaxy implementation of epiGeEC allows comparison of user datasets with thousands of public datasets in a few minutes. Availability and implementation The source code is available at https://bitbucket.org/labjacquespe/epigeec and the Galaxy implementation at http://epigeec.genap.ca. Supplementary information Supplementary data are available at Bioinformatics online.
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Affiliation(s)
- Jonathan Laperle
- Département d'Informatique, Université de Sherbrooke, Sherbrooke, QC, Canada.,Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | - Joanny Raby
- Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - David A de Lima Morais
- Centre de Calcul Scientifique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - Michel Barrette
- Centre de Calcul Scientifique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | - David Bujold
- McGill University and Génome Québec Innovation Center, Montréal, Canada
| | - Charlotte Bastin
- Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | | | - Marie Harel
- Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | - Alain Veilleux
- Centre de Calcul Scientifique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada
| | | | - Pierre-Étienne Jacques
- Département d'Informatique, Université de Sherbrooke, Sherbrooke, QC, Canada.,Département de Biologie, Université de Sherbrooke, Sherbrooke, QC, Canada.,Centre de Calcul Scientifique, Faculté des Sciences, Université de Sherbrooke, Sherbrooke, QC, Canada.,Centre de Recherche du CHUS, Université de Sherbrooke, Sherbrooke, QC, Canada
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19
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Abstract
PURPOSE OF REVIEW The endocannabinoid (eCB) system, i.e. the receptors that respond to the psychoactive component of cannabis, their endogenous ligands and the ligand metabolic enzymes, is part of a larger family of lipid signals termed the endocannabinoidome (eCBome). We summarize recent discoveries of the roles that the eCBome plays within peripheral tissues in diabetes, and how it is being targeted, in an effort to develop novel therapeutics for the treatment of this increasingly prevalent disease. RECENT FINDINGS As with the eCB system, many eCBome members regulate several physiological processes, including energy intake and storage, glucose and lipid metabolism and pancreatic health, which contribute to the development of type 2 diabetes (T2D). Preclinical studies increasingly support the notion that targeting the eCBome may beneficially affect T2D. The eCBome is implicated in T2D at several levels and in a variety of tissues, making this complex lipid signaling system a potential source of many potential therapeutics for the treatments for T2D.
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Affiliation(s)
- Alain Veilleux
- École de nutrition, Université Laval, Québec, QC, Canada
- Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, QC, Canada
- Canadian Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Québec, Canada
| | - Vincenzo Di Marzo
- École de nutrition, Université Laval, Québec, QC, Canada
- Institut sur la nutrition et les aliments fonctionnels, Université Laval, Québec, QC, Canada
- Canadian Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Québec, Canada
- Institut de cardiologie et de pneumologie de Québec, Université Laval, Québec, QC, Canada
- Department de médecine, Université Laval, Québec, QC, Canada
| | - Cristoforo Silvestri
- Canadian Excellence Research Chair on the Microbiome-Endocannabinoidome Axis in Metabolic Health, Québec, Canada.
- Institut de cardiologie et de pneumologie de Québec, Université Laval, Québec, QC, Canada.
- Department de médecine, Université Laval, Québec, QC, Canada.
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Mayeur S, Veilleux A, Pouliot Y, Lamarche B, Beaulieu JF, Hould FS, Richard D, Tchernof A, Levy E. Plasma Lactoferrin Levels Positively Correlate with Insulin Resistance despite an Inverse Association with Total Adiposity in Lean and Severely Obese Patients. PLoS One 2016; 11:e0166138. [PMID: 27902700 PMCID: PMC5130198 DOI: 10.1371/journal.pone.0166138] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2016] [Accepted: 10/24/2016] [Indexed: 01/16/2023] Open
Abstract
Context Lactoferrin (Lf) is an important protein found on mucosal surfaces, within neutrophils and various cells, and in biological fluids. It displays multiple functions, including iron-binding as well as antimicrobial, immunomodulatory and anti-inflammatory activities. Although Lf ingestion has been suggested to cause adiposity reduction in murine models and humans, its relationship with insulin resistance (IR) has not been studied thoroughly. Objective To establish the association between circulating Lf levels, glucose status and blood lipid/lipoprotein profile. Methods Two independent cohorts were examined: lean to moderately obese women admitted for gynecological surgery (n = 53) and severely obese subjects undergoing biliopancreatic diversion (n = 62). Results Although body mass index (BMI) and total body fat mass were negatively associated with Lf, IR (assessed by the HOMA-IR index) was positively and independently associated with plasma Lf concentrations of the first cohort of lean to moderately obese women. These observations were validated in the second cohort in view of the positive correlation between plasma Lf concentrations and the HOMA-IR index, but without a significant association with the body mass index (BMI) of severely obese subjects. In subsamples of severely obese subjects matched for sex, age and BMI, but with either relatively low (1.89 ± 0.73) or high (13.77 ± 8.81) IR states (according to HOMA-IR), higher plasma Lf levels were noted in insulin-resistant vs insulin-sensitive subjects (P<0.05). Finally, Lf levels were significantly higher in lean to moderately obese women than in severely obese subjects (P<0.05). Conclusion Our findings revealed that plasma Lf levels are strongly associated with IR independently of total adiposity, which suggests an intriguing Lf regulation mechanism in conditions of obesity and IR.
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Affiliation(s)
- Sylvain Mayeur
- Research Centre CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Alain Veilleux
- Research Centre CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
| | - Yves Pouliot
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, Quebec, Canada
| | - Benoît Lamarche
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, Quebec, Canada
| | - Jean-François Beaulieu
- Department of Anatomy and Cellular Biology, Faculty of Medicine and Health Sciences, Université de Sherbrooke, Sherbrooke, Quebec, Canada
| | - Frédéric S. Hould
- Institut universitaire de cardiologie et de pneumologie de Québec, Quebec, Canada
| | - Denis Richard
- Institut universitaire de cardiologie et de pneumologie de Québec, Quebec, Canada
| | - André Tchernof
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, Quebec, Canada
| | - Emile Levy
- Research Centre CHU Sainte-Justine, Université de Montréal, Montreal, Quebec, Canada
- Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec, Quebec, Canada
- Department of Nutrition, Université de Montréal, Montreal, Quebec, Canada
- * E-mail:
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21
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Bujold D, Morais DADL, Gauthier C, Côté C, Caron M, Kwan T, Chen KC, Laperle J, Markovits AN, Pastinen T, Caron B, Veilleux A, Jacques PÉ, Bourque G. The International Human Epigenome Consortium Data Portal. Cell Syst 2016; 3:496-499.e2. [PMID: 27863956 DOI: 10.1016/j.cels.2016.10.019] [Citation(s) in RCA: 89] [Impact Index Per Article: 11.1] [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: 01/19/2016] [Revised: 07/21/2016] [Accepted: 10/19/2016] [Indexed: 10/20/2022]
Abstract
The International Human Epigenome Consortium (IHEC) coordinates the production of reference epigenome maps through the characterization of the regulome, methylome, and transcriptome from a wide range of tissues and cell types. To define conventions ensuring the compatibility of datasets and establish an infrastructure enabling data integration, analysis, and sharing, we developed the IHEC Data Portal (http://epigenomesportal.ca/ihec). The portal provides access to >7,000 reference epigenomic datasets, generated from >600 tissues, which have been contributed by seven international consortia: ENCODE, NIH Roadmap, CEEHRC, Blueprint, DEEP, AMED-CREST, and KNIH. The portal enhances the utility of these reference maps by facilitating the discovery, visualization, analysis, download, and sharing of epigenomics data. The IHEC Data Portal is the official source to navigate through IHEC datasets and represents a strategy for unifying the distributed data produced by international research consortia.
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Affiliation(s)
- David Bujold
- McGill University and Génome Québec Innovation Center, Montréal, QC H3A 0G1, Canada
| | | | - Carol Gauthier
- Centre de Calcul Scientifique, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | - Catherine Côté
- McGill University and Génome Québec Innovation Center, Montréal, QC H3A 0G1, Canada
| | - Maxime Caron
- McGill University and Génome Québec Innovation Center, Montréal, QC H3A 0G1, Canada
| | - Tony Kwan
- McGill University and Génome Québec Innovation Center, Montréal, QC H3A 0G1, Canada
| | - Kuang Chung Chen
- McGill High Performance Computing Centre, McGill University, Montréal, QC H3C 1K3, Canada
| | - Jonathan Laperle
- Département d'Informatique, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | | | - Tomi Pastinen
- McGill University and Génome Québec Innovation Center, Montréal, QC H3A 0G1, Canada; Department of Human Genetics, McGill University, Montréal, QC H3A 0G1, Canada
| | - Bryan Caron
- McGill High Performance Computing Centre, McGill University, Montréal, QC H3C 1K3, Canada
| | - Alain Veilleux
- Centre de Calcul Scientifique, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada
| | - Pierre-Étienne Jacques
- Centre de Calcul Scientifique, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; Département d'Informatique, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; Département de Biologie, Université de Sherbrooke, Sherbrooke, QC J1K 2R1, Canada; Centre de Recherche du Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, QC J1H 5N4, Canada
| | - Guillaume Bourque
- McGill University and Génome Québec Innovation Center, Montréal, QC H3A 0G1, Canada; Department of Human Genetics, McGill University, Montréal, QC H3A 0G1, Canada.
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22
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Veilleux A, Mayeur S, Bérubé JC, Beaulieu JF, Tremblay E, Hould FS, Bossé Y, Richard D, Levy E. Altered intestinal functions and increased local inflammation in insulin-resistant obese subjects: a gene-expression profile analysis. BMC Gastroenterol 2015; 15:119. [PMID: 26376914 PMCID: PMC4574092 DOI: 10.1186/s12876-015-0342-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Accepted: 08/25/2015] [Indexed: 03/15/2023] Open
Abstract
BACKGROUND Metabolic alterations relevant to postprandial dyslipidemia were previously identified in the intestine of obese insulin-resistant subjects. The aim of the study was to identify the genes deregulated by systemic insulin resistance in the intestine of severely obese subjects. METHODS Transcripts from duodenal samples of insulin-sensitive (HOMA-IR < 3, n = 9) and insulin-resistant (HOMA-IR > 7, n = 9) obese subjects were assayed by microarray (Illumina HumanHT-12). RESULTS A total of 195 annotated genes were identified as differentially expressed between these two groups (Fold change > 1.2). Of these genes, 36 were found to be directly involved in known intestinal functions, including digestion, extracellular matrix, endocrine system, immunity and cholesterol metabolism. Interestingly, all differentially expressed genes (n = 8) implicated in inflammation and oxidative stress were found to be upregulated in the intestine of insulin-resistant compared to insulin-sensitive subjects. Metabolic pathway analysis revealed that several signaling pathways involved in immunity and inflammation were significantly enriched in differently expressed genes and were predicted to be activated in the intestine of insulin-resistant subjects. Using stringent criteria (Fold change > 1.5; FDR < 0.05), three genes were found to be significantly and differently expressed in the intestine of insulin-resistant compared to insulin-sensitive subjects: the transcripts of the insulinotropic glucose-dependant peptide (GIP) and of the β-microseminoprotein (MSMB) were significantly reduced, but that of the humanin like-1 (MTRNR2L1) was significantly increased. CONCLUSION These results underline that systemic insulin resistance is associated with remodeling of key intestinal functions. Moreover, these data indicate that small intestine metabolic dysfunction is accompanied with a local amplification of low-grade inflammatory process implicating several pathways. Genes identified in this study are potentially triggered throughout the development of intestinal metabolic abnormalities, which could contribute to dyslipidemia, a component of metabolic syndrome and diabetes.
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Affiliation(s)
- Alain Veilleux
- Department of Nutrition, Université de Montréal and Research center of CHU Sainte-Justine, 3175 Côte Ste-Catherine, Montréal, Qc, Canada.
| | - Sylvain Mayeur
- Department of Nutrition, Université de Montréal and Research center of CHU Sainte-Justine, 3175 Côte Ste-Catherine, Montréal, Qc, Canada.
| | - Jean-Christophe Bérubé
- Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Qc, Canada.
| | - Jean-François Beaulieu
- Departement of Anatomy and cellular biology, Université de Sherbrooke, Sherbrooke, Qc, Canada. .,Canada Research Chair in Intestinal Physiopathology, Sherbrooke, Québec, Canada.
| | - Eric Tremblay
- Departement of Anatomy and cellular biology, Université de Sherbrooke, Sherbrooke, Qc, Canada.
| | - Frédéric-Simon Hould
- Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Qc, Canada. .,Departement of surgery, Université Laval, Québec, Qc, Canada.
| | - Yohan Bossé
- Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Qc, Canada. .,Department of Molecular Medicine, Université Laval, Quebec, Qc, Canada.
| | - Denis Richard
- Institut universitaire de cardiologie et de pneumologie de Québec (CRIUCPQ), Université Laval, Québec, Qc, Canada. .,Department of Molecular Medicine, Université Laval, Quebec, Qc, Canada. .,Chaire de Recherche Merck Frosst/IRSC Research Chair on Obesity, Québec, Qc, Canada.
| | - Emile Levy
- Department of Nutrition, Université de Montréal and Research center of CHU Sainte-Justine, 3175 Côte Ste-Catherine, Montréal, Qc, Canada. .,JA. deSève Research Chair in nutrition, Montréal, Qc, Canada.
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23
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Michaud A, Lacroix-Pépin N, Pelletier M, Veilleux A, Noël S, Bouchard C, Marceau P, Fortier MA, Tchernof A. Prostaglandin (PG) F2 alpha synthesis in human subcutaneous and omental adipose tissue: modulation by inflammatory cytokines and role of the human aldose reductase AKR1B1. PLoS One 2014; 9:e90861. [PMID: 24663124 PMCID: PMC3963845 DOI: 10.1371/journal.pone.0090861] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 02/06/2014] [Indexed: 01/04/2023] Open
Abstract
INTRODUCTION PGF2α may be involved in the regulation of adipose tissue function. OBJECTIVES 1) To examine PGF2α release by primary preadipocytes, mature adipocytes and whole tissue explants from the subcutaneous and omental fat compartments; 2) To assess which PGF synthase is the most relevant in human adipose tissue. METHODS Fat samples were obtained by surgery in women. PGF2α release by preadipocytes, adipocytes and explants under stimulation by TNF-α, IL-1β or both was measured. Messenger RNA expression levels of AKR1B1 and AKR1C3 were measured by RT-PCR in whole adipose tissue and cytokine-treated preadipocytes. The effect of AKR1B1 inhibitor ponalrestat on PGF2α synthesis was investigated. RESULTS PGF2α release was significantly induced in response to cytokines compared to control in omental (p = 0.01) and to a lesser extent in subcutaneous preadipocytes (p = 0.02). Messenger RNA of COX-2 was significantly higher in omental compared to subcutaneous preadipocytes in response to combined TNF-α and IL-1β (p = 0.01). Inflammatory cytokines increased AKR1B1 mRNA expression and protein levels (p≤0.05), but failed to increase expression levels of AKR1C3 in cultured preadipocytes. Accordingly, ponalrestat blunted PGF2α synthesis by preadipocytes in basal and stimulated conditions (p≤0.05). Women with the highest PGF2α release by omental adipocytes had a higher BMI (p = 0.05), waist circumference (p≤0.05) and HOMAir index (p≤0.005) as well as higher mRNA expression of AKR1B1 in omental (p<0.10) and subcutaneous (p≤0.05) adipose tissue compared to women with low omental adipocytes PGF2α release. Positive correlations were observed between mRNA expression of AKR1B1 in both compartments and BMI, waist circumference as well as HOMAir index (p≤0.05 for all). CONCLUSION PGF2α release by omental mature adipocytes is increased in abdominally obese women. Moreover, COX-2 expression and PGF2α release is particularly responsive to inflammatory stimulation in omental preadipocytes. Yet, blockade of PGF synthase AKR1B1 inhibits most of the PGF2α release.
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Affiliation(s)
- Andréanne Michaud
- Endocrinology and Nephrology, Laval University Medical Center, Quebec City, Canada
- Department of Nutrition, Laval University, Quebec City, Canada
| | | | - Mélissa Pelletier
- Endocrinology and Nephrology, Laval University Medical Center, Quebec City, Canada
| | - Alain Veilleux
- Department of Nutrition, Laval University, Quebec City, Canada
| | - Suzanne Noël
- Gynecology Unit, Laval University Medical Center, Quebec City, Canada
| | - Céline Bouchard
- Gynecology Unit, Laval University Medical Center, Quebec City, Canada
| | - Picard Marceau
- Department of Surgery, Quebec Cardiology and Pulmonology Institute, Quebec City, Canada
| | - Michel A. Fortier
- Reproduction and Biology, Laval University Medical Center, Quebec City, Canada
| | - André Tchernof
- Endocrinology and Nephrology, Laval University Medical Center, Quebec City, Canada
- Department of Nutrition, Laval University, Quebec City, Canada
- * E-mail:
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Michaud A, Boulet MM, Veilleux A, Noël S, Paris G, Tchernof A. Abdominal subcutaneous and omental adipocyte morphology and its relation to gene expression, lipolysis and adipocytokine levels in women. Metabolism 2014; 63:372-81. [PMID: 24369916 DOI: 10.1016/j.metabol.2013.11.007] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2013] [Revised: 09/19/2013] [Accepted: 11/08/2013] [Indexed: 01/04/2023]
Abstract
OBJECTIVE We tested the hypothesis that women with adipocyte hypertrophy in either omental (OM) or subcutaneous (SC) adipose tissue are characterized by alterations in adipocyte lipolysis and adipose tissue expression of genes coding for proteins involved in adipocyte metabolism or inflammation, independent of overall adiposity and fat distribution. METHODS OM and SC fat samples were obtained surgically in 44 women (age: 47.1±5.0years, BMI: 27.7±5.3kg/m(2)). In a given depot, women with larger adipocytes than predicted by the regression of adipocyte size vs. total and regional adiposity measurements were considered as having adipocyte hypertrophy, whereas women with smaller adipocytes than predicted were considered as having adipocyte hyperplasia. RESULTS Women with OM adipocyte hypertrophy had significantly lower SC GLUT4 mRNA abundance (p≤0.05), higher SC CEBPB mRNA expression (p≤0.05) as well as higher mRNA expression of OM PLIN (p≤0.05), CD68 (p≤0.10), CD14 (p≤0.10), CD31 (p≤0.05) and vWF (p≤0.05) compared to women with OM adipocyte hyperplasia. OM adipocyte isoproterenol- (10(-10) to 10(-5)mol/L), forskolin- (10(-5)mol/L) and dibutyryl cAMP- (10(-3)mol/L) stimulated lipolysis was higher in women with hypertrophic OM adipocytes (p≤0.05, for all). Women with SC adipocyte hypertrophy had lower SC mRNA expression of GLUT4 (p≤0.10), higher SC mRNA expression of CEBPB (p≤0.05), lower plasma adiponectin concentrations (p≤0.05) and higher SC adipocyte isoproterenol- (10(-9) to 10(-5)mol/L) stimulated lipolysis (p≤0.05) compared to women with SC adipocyte hyperplasia. CONCLUSION Hypertrophic adipocytes in both fat compartments are characterized by alterations in adipocyte lipolysis and adipose tissue expression of genes coding for proteins involved in adipocyte metabolism or inflammation.
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Affiliation(s)
- Andréanne Michaud
- Endocrinology and Nephrology, Laval University Medical Center; Department of Nutrition, Laval University
| | - Marie Michèle Boulet
- Endocrinology and Nephrology, Laval University Medical Center; Department of Nutrition, Laval University
| | - Alain Veilleux
- Department of Nutrition, University of Montreal, Research Center, CHU Sainte-Justine
| | - Suzanne Noël
- Gynecology Unit, Laval University Medical Center Quebec City
| | - Gaétan Paris
- Gynecology Unit, Laval University Medical Center Quebec City
| | - André Tchernof
- Endocrinology and Nephrology, Laval University Medical Center; Department of Nutrition, Laval University.
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25
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Affiliation(s)
- Alain Veilleux
- From the Department of Nutrition, Université de Montréal, Research Center, CHU Sainte-Justine, Montréal, Québec, Canada (A.V., É.G., E.L.); Department of Surgery, Université Laval, Québec, Canada (P.M.); Department of Medicine, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada (A.C.C.); Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada (D.R.); and Laboratoire de Lipidologie, Métabolisme et Nutrition,
| | - Émilie Grenier
- From the Department of Nutrition, Université de Montréal, Research Center, CHU Sainte-Justine, Montréal, Québec, Canada (A.V., É.G., E.L.); Department of Surgery, Université Laval, Québec, Canada (P.M.); Department of Medicine, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada (A.C.C.); Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada (D.R.); and Laboratoire de Lipidologie, Métabolisme et Nutrition,
| | - Picard Marceau
- From the Department of Nutrition, Université de Montréal, Research Center, CHU Sainte-Justine, Montréal, Québec, Canada (A.V., É.G., E.L.); Department of Surgery, Université Laval, Québec, Canada (P.M.); Department of Medicine, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada (A.C.C.); Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada (D.R.); and Laboratoire de Lipidologie, Métabolisme et Nutrition,
| | - André C. Carpentier
- From the Department of Nutrition, Université de Montréal, Research Center, CHU Sainte-Justine, Montréal, Québec, Canada (A.V., É.G., E.L.); Department of Surgery, Université Laval, Québec, Canada (P.M.); Department of Medicine, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada (A.C.C.); Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada (D.R.); and Laboratoire de Lipidologie, Métabolisme et Nutrition,
| | - Denis Richard
- From the Department of Nutrition, Université de Montréal, Research Center, CHU Sainte-Justine, Montréal, Québec, Canada (A.V., É.G., E.L.); Department of Surgery, Université Laval, Québec, Canada (P.M.); Department of Medicine, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada (A.C.C.); Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada (D.R.); and Laboratoire de Lipidologie, Métabolisme et Nutrition,
| | - Emile Levy
- From the Department of Nutrition, Université de Montréal, Research Center, CHU Sainte-Justine, Montréal, Québec, Canada (A.V., É.G., E.L.); Department of Surgery, Université Laval, Québec, Canada (P.M.); Department of Medicine, Université de Sherbrooke, Centre Hospitalier Universitaire de Sherbrooke, Sherbrooke, Canada (A.C.C.); Centre de Recherche de l’Institut Universitaire de Cardiologie et de Pneumologie de Québec, Québec, Canada (D.R.); and Laboratoire de Lipidologie, Métabolisme et Nutrition,
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Bravard A, Veilleux A, Disse E, Laville M, Vidal H, Tchernof A, Rieusset J. The expression of FTO in human adipose tissue is influenced by fat depot, adiposity, and insulin sensitivity. Obesity (Silver Spring) 2013; 21:1165-73. [PMID: 23913730 DOI: 10.1002/oby.20110] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
OBJECTIVE The fat mass and obesity associated (FTO) gene is related to obesity, but the regulation of FTO expression in adipose tissue is not fully understood. We investigated FTO expression in paired subcutaneous and omental adipose tissues (SAT and OAT) from healthy women undergoing gynecological surgeries, and its relation with adiposity and insulin sensitivity. DESIGN AND METHODS FTO expression in SAT of type 2 diabetic patients treated or not with Rosiglitazone was also compared. RESULTS Both the mRNA and protein levels of FTO were higher in OAT from women than in SAT. Only OAT FTO protein levels negatively correlated with BMI and body fat mass, whereas SAT FTO mRNA levels were negatively correlated with subcutaneous fat deposition. In addition, SAT FTO mRNA and protein levels were increased in insulin resistant women (high HOMA) compared to insulin sensitive women (low HOMA), whereas OAT FTO expression was not different between these two subgroups. Interestingly, FTO mRNA levels were increased in SAT of type 2 diabetic patients, and treatment of diabetics with Rosiglitazone improved insulin sensitivity and reduced SAT FTO mRNA levels. Lastly, FTO expression was transiently increased in the early phase of 3T3-L1 cell differentiation, which coincides with the induction of PPARγ2 expression. However, partial reduction of FTO did not impact PPARγ2 expression and adipocyte differentiation. CONCLUSION Therefore, FTO gene expression is higher in OAT than in SAT in lean to moderately obese women. OAT FTO expression is associated with adiposity, whereas SAT FTO expression is associated with insulin sensitivity. These associations are independent of an effect of FTO on adipocyte differentiation.
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Affiliation(s)
- Amélie Bravard
- INSERM UMR-1060, CarMeN Laboratory, Lyon 1 University, Charles Merieux Lyon-Sud Medical School, Lyon, F-69003, France
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Veilleux A, Côté JA, Blouin K, Nadeau M, Pelletier M, Marceau P, Laberge PY, Luu-The V, Tchernof A. Glucocorticoid-induced androgen inactivation by aldo-keto reductase 1C2 promotes adipogenesis in human preadipocytes. Am J Physiol Endocrinol Metab 2012; 302:E941-9. [PMID: 22275760 DOI: 10.1152/ajpendo.00069.2011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Adipogenesis and lipid storage in human adipose tissue are inhibited by androgens such as DHT. Inactivation of DHT to 3α-diol is stimulated by glucocorticoids in human preadipocytes. We sought to characterize glucocorticoid-induced androgen inactivation in human preadipocytes and to establish its role in the antiadipogenic action of DHT. Subcutaneous and omental primary preadipocyte cultures were established from fat samples obtained in subjects undergoing abdominal surgeries. Inactivation of DHT to 3α/β-diol for 24 h was measured in dexamethasone- or vehicle-treated cells. Specific downregulation of aldo-keto reductase 1C (AKR1C) enzymes in human preadipocytes was achieved using RNA interference. In whole adipose tissue sample, cortisol production was positively correlated with androgen inactivation in both subcutaneous and omental adipose tissue (P < 0.05). Maximal dexamethasone (1 μM) stimulation of DHT inactivation was higher in omental compared with subcutaneous fat from men as well as subcutaneous and omental fat from women (P < 0.05). A significant positive correlation was observed between BMI and maximal dexamethasone-induced DHT inactivation rates in subcutaneous and omental adipose tissue of men and women (r = 0.24, n = 26, P < 0.01). siRNA-induced downregulation of AKR1C2, but not AKR1C1 or AKR1C3, significantly reduced basal and glucocorticoid-induced androgen inactivation rates (P < 0.05). The inhibitory action of DHT on preadipocyte differentiation was potentiated following AKR1C2 but not AKR1C1 or AKR1C3 downregulation. Specifically, lipid accumulation, G3PDH activity, and FABP4 mRNA expression in differentiated preadipocytes exposed to DHT were reduced further upon AKR1C2 siRNA transfection. We conclude that glucocorticoid-induced androgen inactivation is mediated by AKR1C2 and is particularly effective in omental preadipocytes of obese men. The interplay between glucocorticoids and AKR1C2-dependent androgen inactivation may locally modulate adipogenesis and lipid accumulation in a depot-specific manner.
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Affiliation(s)
- Alain Veilleux
- Endocrinology and Genomics and Dept. of Food Science and Nutrition, Laval University Medical Research Center, Laval University, Quebec City, QC, Canada
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Michaud A, Pelletier M, Veilleux A, Fortier M, Tchernof A. 165 Alteration of the prostaglandin F2alpha/F2 ratio in omental adipocytes of obese women. Can J Cardiol 2011. [DOI: 10.1016/j.cjca.2011.07.114] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022] Open
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Veilleux A, Caron-Jobin M, Noël S, Laberge PY, Tchernof A. Visceral adipocyte hypertrophy is associated with dyslipidemia independent of body composition and fat distribution in women. Diabetes 2011; 60:1504-11. [PMID: 21421806 PMCID: PMC3292324 DOI: 10.2337/db10-1039] [Citation(s) in RCA: 105] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
OBJECTIVE We assessed whether subcutaneous and omental adipocyte hypertrophy are related to metabolic alterations independent of body composition and fat distribution in women. RESEARCH DESIGN AND METHODS Mean adipocyte diameter of paired subcutaneous and omental adipose tissue samples was obtained in lean to obese women. Linear regression models predicting adipocyte size in both adipose tissue depots were computed using body composition and fat distribution measures (n = 150). In a given depot, women with larger adipocytes than predicted by the regression were considered as having adipocyte hypertrophy, whereas women with smaller adipocytes than predicted were considered as having adipocyte hyperplasia. RESULTS Women characterized by omental adipocyte hypertrophy had higher plasma and VLDL triglyceride levels as well as a higher total-to-HDL cholesterol ratio compared with women characterized by omental adipocyte hyperplasia (P < 0.05). Conversely, women characterized by subcutaneous adipocyte hypertrophy or hyperplasia showed a similar lipid profile. In logistic regression analyses, a 10% enlargement of omental adipocytes increased the risk of hypertriglyceridemia (adjusted odds ratio [OR] 4.06, P < 0.001) independent of body composition and fat distribution measures. A 10% increase in visceral adipocyte number also raised the risk of hypertriglyceridemia (adjusted OR 1.55, P < 0.02). Associations between adipocyte size and homeostasis model assessment of insulin resistance were not significant once adjusted for adiposity and body fat distribution. CONCLUSIONS These results suggest that omental, but not subcutaneous, adipocyte hypertrophy is associated with an altered lipid profile independent of body composition and fat distribution in women.
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Affiliation(s)
- Alain Veilleux
- Endocrinology and Genomics, Laval University Medical Research Center, Québec, Canada
- Department of Food Science and Nutrition, Laval University, Québec, Canada
| | - Maude Caron-Jobin
- Endocrinology and Genomics, Laval University Medical Research Center, Québec, Canada
- Department of Food Science and Nutrition, Laval University, Québec, Canada
| | - Suzanne Noël
- Gynecology Unit, Laval University Medical Research Center, Québec, Canada
| | | | - André Tchernof
- Endocrinology and Genomics, Laval University Medical Research Center, Québec, Canada
- Department of Food Science and Nutrition, Laval University, Québec, Canada
- Corresponding author: André Tchernof,
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Veilleux A, Laberge PY, Morency J, Noël S, Luu-The V, Tchernof A. Expression of genes related to glucocorticoid action in human subcutaneous and omental adipose tissue. J Steroid Biochem Mol Biol 2010; 122:28-34. [PMID: 20206259 DOI: 10.1016/j.jsbmb.2010.02.024] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2009] [Revised: 02/22/2010] [Accepted: 02/24/2010] [Indexed: 10/19/2022]
Abstract
Adipose tissue glucocorticoid action relies on local enzymatic interconversion and glucocorticoid receptor (GR) availability. 11β-Hydroxysteroid dehydrogenase type 1 (11β-HSD1), 2 (11β-HSD2) and hexose-6-phosphate dehydrogenase (H6PDH) are likely involved in glucocorticoid activation/inactivation within adipose tissue. We examined adipose tissue mRNA expression of genes related to glucocorticoid action and their association with total and visceral adiposity. Messenger RNA was measured in paired subcutaneous and omental fat samples obtained from 56 women (age: 47.3 ± 4.8 years, BMI: 27.1 ± 5.2 kg/m(2)) undergoing gynaecological surgery. Expression levels of 11β-HSD2, H6PDH and GRα were higher in omental adipose tissue while 11β-HSD1 expression was similar between fat compartments. Subcutaneous and omental 11β-HSD1 mRNA abundances were positively associated with total and visceral adiposity whereas omental H6PDH mRNA abundance was negatively associated with these measures. Only omental 11β-HSD1 mRNA expression remained significantly associated with visceral adipose tissue area following statistical adjustment for fat mass, age and menopausal status. Omental 11β-HSD1 mRNA expression explained 19.1% of the variance in visceral adipose tissue area. Omental fat tissue 11β-HSD-1 protein and cortisol levels were higher in visceral obese women, supporting findings obtained with 11β-HSD-1 mRNA. These results suggest that among the transcripts examined only omental 11β-HSD1 is independently associated with visceral obesity in women.
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Affiliation(s)
- Alain Veilleux
- Endocrinology and Genomics, Laval University Medical Center, Canada
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Veilleux A, Houde VP, Bellmann K, Marette A. Chronic inhibition of the mTORC1/S6K1 pathway increases insulin-induced PI3K activity but inhibits Akt2 and glucose transport stimulation in 3T3-L1 adipocytes. Mol Endocrinol 2010; 24:766-78. [PMID: 20203102 DOI: 10.1210/me.2009-0328] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
The mammalian target of rapamycin complex 1 (mTORC)1 pathway has emerged as a critical signaling component in the modulation of insulin's metabolic action. This effect is triggered by a nutrient- and insulin-mediated negative feedback loop in which mTOR and S6 kinase (S6K)1 phosphorylate insulin receptor substrate (IRS)-1 on serine residues, which blunts phosphatidylinositol 3-kinase (PI3K) activation. Acute inhibition of mTORC1/S6K1 by rapamycin increases insulin signaling and glucose uptake in myocytes and adipocytes, but whether these effects can be maintained under chronic inhibition of mTORC1 or S6K1 remains unclear. Here, we analyzed the effect of chronic rapamycin inhibition or small interfering RNA-based down-regulation of specific elements of the mTORC1/S6K1 pathway on insulin signaling and glucose transport in adipocytes. Both chronic inhibition of mTORC1 by rapamycin or knockdown of either mTOR, raptor, or S6K1 reduced inhibitory serine phosphorylation of IRS-1, while increasing its insulin-stimulated tyrosine phosphorylation and associated PI3K activity. However, knockdown of either mTOR or raptor selectively blunted IRS-1 phosphorylation on Ser636/639, whereas only S6K1 knockdown was found to reduce phosphorylation of IRS-1 on Ser1101. Unexpectedly, insulin-induced activation of Akt2 and glucose transporter 4 expression were reduced after chronic disruption of the mTORC1/S6K1 pathway, impairing insulin-mediated glucose uptake despite increased PI3K activation. In conclusion, these data indicate that both mTORC1 and S6K1 are key elements of the negative feedback loop but inhibit insulin-induced PI3K activity through phosphorylation of specific serine residues in IRS-1. However, this study also shows that chronic inhibition of the mTORC1/S6K1 pathway uncouples IRS-1/PI3K signaling from insulin-induced glucose transport due to impaired activation of Akt2 and blunted glucose transporter 4 expression.
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Affiliation(s)
- Alain Veilleux
- Department of Medicine, Faculty of Medicine, Laval University Hospital Research Center, Québec, Canada
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Blouin K, Nadeau M, Perreault M, Veilleux A, Drolet R, Marceau P, Mailloux J, Luu-The V, Tchernof A. Effects of androgens on adipocyte differentiation and adipose tissue explant metabolism in men and women. Clin Endocrinol (Oxf) 2010; 72:176-88. [PMID: 19500113 DOI: 10.1111/j.1365-2265.2009.03645.x] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE To examine the effects of aromatizable or nonaromatizable androgens on abdominal subcutaneous (SC) and omental (OM) adipose tissue lipid metabolism and adipogenesis in men and women. DESIGN AND SUBJECTS Primary organ and preadipocyte cultures were established from surgical samples obtained in men (n = 22) and women undergoing biliopancreatic diversions (n = 12) or gynaecological surgeries (n = 8). Cultures were treated with testosterone, dihydrotestosterone (DHT) and methyltrienolone (R1881). MEASUREMENTS Heparin-releasable lipoprotein lipase (HR-LPL) activity, glycerol release, adiponectin secretion, glycerol-3-phosphate dehydrogenase activity and lipid accumulation were measured. RESULTS In organ cultures from men, DHT had a statistically significant inhibitory effect on HR-LPL activity in the OM compartment. Testosterone significantly inhibited HR-LPL activity in SC and OM cultures. In women, high DHT concentrations tended to inhibit HR-LPL activity in OM cultures. Minor androgenic effects were observed for basal and isoproterenol-stimulated lipolysis as well as adiponectin release in men. On the other hand, adipocyte differentiation was significantly and dose-dependently inhibited by DHT, testosterone and R1881 in SC and OM cultures from both sexes. These effects did not differ according to adipose tissue depot but appeared to be more pronounced in women than in men. CONCLUSIONS Androgens slightly decreased HR-LPL activity in adipose tissue organ cultures, but markedly inhibited adipogenesis in SC and OM primary preadipocyte cultures in both sexes. Androgenic effects on adipose tissue in men vs. women may not differ in terms of direction but in the magnitude of their negative impact on adipogenesis and lipid synthesis.
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Affiliation(s)
- Karine Blouin
- Molecular Endocrinology and Oncology Research Center, Laval University Medical Research Center, Laval University, Québec, QC, Canada
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Veilleux A, Rhéaume C, Daris M, Luu-The V, Tchernof A. Omental adipose tissue type 1 11 beta-hydroxysteroid dehydrogenase oxoreductase activity, body fat distribution, and metabolic alterations in women. J Clin Endocrinol Metab 2009; 94:3550-7. [PMID: 19567539 DOI: 10.1210/jc.2008-2011] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT Modulation of adipose tissue exposure to active glucocorticoids by type 1 11 beta-hydroxysteroid dehydrogenase (11 beta-HSD1) is involved in abdominal obesity of rodent models, but only a few studies have related 11 beta-HSD1 oxoreductase activity to fat distribution in humans. OBJECTIVE The objective of the study was to examine the link between 11 beta-HSD1 oxoreductase activity, fat distribution patterns, and the metabolic profile in women. METHODS Omental (OM) and sc adipose tissue samples were obtained from 36 lean to obese women (aged 47.2 +/- 5.3 yr; body mass index 29.1 +/- 5.2 kg/m(2)) undergoing gynecological surgery. Measures of body composition, fat distribution, blood lipids, and insulin sensitivity were obtained. 11 beta-HSD1 oxoreductase activity was measured over a 24-h period by the reduction of [(14)C]cortisone in adipose tissue homogenates. RESULTS 11 beta-HSD1 oxoreductase activity was higher in OM compared with sc adipose tissue (9.6 +/- 4.9 vs. 7.9 +/- 4.2 pmol/mg x h, P < 0.01). OM 11 beta-HSD1 oxoreductase activity was positively associated with OM adipocyte size (r = 0.67, P < 0.0001) and visceral adipose tissue area (r = 0.57, P < 0.0003). A positive correlation was also observed between the OM/sc 11 beta-HSD1 oxoreductase activity ratio and the OM/sc adipocyte size ratio (r = 0.37, P < 0.05) as well as the visceral/sc adipose tissue area ratio (r = 0.36, P < 0.05). Women in the highest tertile of OM 11 beta-HSD1 oxoreductase activity had larger OM adipocytes, increased OM lipolysis, increased lipoprotein lipase activity, decreased high-density lipoprotein cholesterol, decreased adiponectin levels, and an increased homeostasis model assessment of insulin resistance index compared with women in the lower tertile (P < 0.05). CONCLUSIONS These results suggest that a relatively higher 11 beta-HSD1 activity in OM vs. sc adipose tissue is associated with preferential visceral fat accumulation and concomitant metabolic alterations.
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Affiliation(s)
- Alain Veilleux
- Department of Food Science and Nutrition, Laval University, Québec, Canada
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Veilleux A, Blouin K, Rhéaume C, Daris M, Marette A, Tchernof A. Glucose transporter 4 and insulin receptor substrate-1 messenger RNA expression in omental and subcutaneous adipose tissue in women. Metabolism 2009; 58:624-31. [PMID: 19375584 DOI: 10.1016/j.metabol.2008.12.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/06/2008] [Accepted: 12/16/2008] [Indexed: 11/23/2022]
Abstract
Insulin receptor substrate-1 (IRS-1) and glucose transporter 4 (GLUT4) expression may provide an indirect reflection of the capacity of adipocytes to respond to insulin stimulation. We examined messenger RNA (mRNA) expression of these genes in omental and subcutaneous adipose tissue of women. Paired omental and subcutaneous adipose tissue samples were obtained from 36 women (age, 47 +/- 5 years; body mass index, 28.0 +/- 5.4 kg/m(2)) undergoing gynecologic surgeries. Total adiposity and visceral adiposity were assessed by dual-energy x-ray absorptiometry and computed tomography. The GLUT4 and IRS-1 mRNA expression levels were both significantly higher in subcutaneous compared with omental adipose tissue. A negative correlation was observed between body fat percentage and subcutaneous adipose tissue GLUT4 (r = -0.39, P < .05) and IRS-1 (r = -0.30, P < .08) mRNA abundance. However, in omental fat, only GLUT4 mRNA was inversely associated with body fat percentage (r = -0.53, P < .001). Moreover, the homeostasis model assessment of insulin resistance index was associated with mRNA expression of subcutaneous GLUT4 (r = -0.56, P < .001), subcutaneous IRS-1 (r = -0.51, P < .01), and omental GLUT4 (r = -0.54, P < .001), but not omental IRS-1. Interestingly, plasma adiponectin was only associated with subcutaneous GLUT4 (r = 0.48, P < .01) and IRS-1 (r = 0.48, P < .05) mRNA expression. The GLUT4 protein, unlike mRNA expression, was higher in omental than in subcutaneous adipose tissue. However, abdominal obesity-related differences in protein or mRNA expression were similar. Omental IRS-1 expression was low and unaffected by visceral obesity. In contrast, omental and subcutaneous GLUT4 as well as subcutaneous IRS-1 were reduced in visceral obesity. This divergent pattern of expression may reflect a lower capacity of omental adipose tissue to respond to insulin stimulation at all adiposity levels.
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Affiliation(s)
- Alain Veilleux
- Molecular Endocrinology and Oncology Research Center, Laval University, Québec, (Québec), Canada G1V 4G2
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Blouin K, Veilleux A, Luu-The V, Tchernof A. Androgen metabolism in adipose tissue: recent advances. Mol Cell Endocrinol 2009; 301:97-103. [PMID: 19022338 DOI: 10.1016/j.mce.2008.10.035] [Citation(s) in RCA: 87] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2008] [Revised: 10/21/2008] [Accepted: 10/22/2008] [Indexed: 01/21/2023]
Abstract
Androgens modulate adipocyte function and affect the size of adipose tissue compartments in humans. Aldo-keto reductase 1C (AKR1C) enzymes, especially AKR1C2 and AKR1C3, through local synthesis and inactivation of androgens, may be involved in the fine regulation of androgen availability in adipose tissue. This review article summarizes recent findings on androgen metabolism in adipose tissue. Primary culture models and whole tissue specimens of human adipose tissue obtained from the abdominal subcutaneous and intra-abdominal (omental) fat compartments were used in our studies. The non-aromatizable androgen dihydrotestosterone (DHT) inhibits adipocyte differentiation in subcutaneous and omental adipocytes in humans. This inhibitory effect is partially reversed by anti-androgens. Activity and mRNA expression of AKR1C1, 2 and 3 were detected in SC and OM adipose tissue, in men and women, with higher levels in the SC depot than the omental depot of both sexes. The abundance of AKR1C enzyme mRNAs was particularly elevated compared to other steroid-converting enzymes. Significant positive associations were observed between AKR1C enzyme mRNA levels or DHT inactivation rates and visceral fat accumulation as well as OM adipocyte size in women and in men, at least in the normal weight to moderately obese range. Mature adipocytes had significantly higher DHT inactivation rates compared to preadipocytes. Accordingly, adipocyte differentiation significantly increased AKR1C enzyme expression and DHT inactivation rates. Treatment of preadipocytes with dexamethasone alone led to significant increases in the formation of 5alpha-androstan-3alpha,17beta-diol. This stimulation was completely abolished by RU486, suggesting that androgen inactivation is stimulated by a glucocorticoid receptor-dependent mechanism. In conclusion, higher AKR1C activity and expression in mature adipocytes may explain the associations between these enzymes and obesity. We speculate that glucocorticoid-induced androgen inactivation could locally decrease the exposure of adipose cells to active androgens and partially remove their inhibitory effect on adipogenesis. We hypothesize that body fat distribution patterns likely emerge from the local adipose tissue balance between active androgens and glucocorticoids in each fat compartment.
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Affiliation(s)
- Karine Blouin
- Molecular Endocrinology and Oncology Research Center, Laval University Medical Research Center, Canada; Department of Nutrition, Laval University, Canada
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Despres C, Beuter A, Richer F, Poitras K, Veilleux A, Ayotte P, Dewailly É, Saint-Amour D, Muckle G. A42 - Évaluation des effets neurologiques et moteurs d’une exposition au mercure, aux biphénylspolychlorés et au plomb chez les enfants Inuits d’âge préscolaire. Rev Epidemiol Sante Publique 2005. [DOI: 10.1016/s0398-7620(05)84718-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Liu S, Veilleux A, Zhang L, Young A, Kwok E, Laliberté F, Chung C, Tota MR, Dubé D, Friesen RW, Huang Z. Dynamic activation of cystic fibrosis transmembrane conductance regulator by type 3 and type 4D phosphodiesterase inhibitors. J Pharmacol Exp Ther 2005; 314:846-54. [PMID: 15901792 DOI: 10.1124/jpet.105.083519] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The diseases of cystic fibrosis, chronic obstructive pulmonary disease (COPD), and chronic bronchitis are characterized by mucus-congested and inflamed airways. Anti-inflammatory agents that can simultaneously restore or enhance mucociliary clearance through cystic fibrosis transmembrane conductance regulator (CFTR) activation may represent new therapeutics in their treatment. Herein, we report the activation of CFTR-mediated chloride secretion by phosphodiesterase (PDE) 4 inhibitors in T84 monolayer using (125)I anion as tracer. In the absence of forskolin, the iodide secretion was insensitive to PDE4 inhibitor L-826,141 [4-[2-(3,4-bis-difluoromethoxyphenyl)-2-[4-(1,1,1,3,3,3-hexafluoro-2-hydroxypropan-2-yl)phenyl]-ethyl]-3-methylpyridine-1-oxide], roflumilast, or to PDE3 inhibitor trequinsin. However, these inhibitors potently augmented iodide secretion after forskolin stimulation, with efficacy coupled to the activation states of adenylyl cyclase. The iodide secretion from PDE3 or PDE4 inhibition was characterized at first by a prolonged efflux duration, followed by progressively elevated peak efflux rates at higher inhibitor concentrations. Paralleled with an increased phosphor-cAMP response element-binding protein formation, the CFTR activation dissociated from a global cAMP elevation and was blocked by H89 [N-[2-((p-bromocinnamyl)amino)ethyl]-5-isoquinolinesulfonamide]. 2-(4-Fluorophenoxy)-N-[(1S)-1-(4-methoxyphenyl)ethyl]nicotinamide, a stereoselective PDE4D inhibitor, augmented iodide efflux more efficiently than its less potent (R)-isomer. The peak efflux from maximal PDE4 and PDE3 inhibition matched that from full adenylyl cyclase activation. These data suggest that PDE3 and PDE4 (mainly PDE4D) form the major cAMP diffusion barrier in T84 cells to ensure a compartmentalized CFTR signaling. Together with their potent anti-inflammatory properties, the potentially enhanced airway mucociliary clearance from CFTR activation may have contributed to the efficacy of PDE4 inhibitors in COPD and asthmatic patients. PDE4 inhibitors may represent new opportunities to combat cystic fibrosis and other respiratory diseases in future.
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Affiliation(s)
- Susana Liu
- Merck Frosst Center for Therapeutic Research, P.O. Box 1005, Pointe Claire-Dorval, Quebec H9R 4P8, Canada
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Tremblay F, Gagnon A, Veilleux A, Sorisky A, Marette A. Activation of the mammalian target of rapamycin pathway acutely inhibits insulin signaling to Akt and glucose transport in 3T3-L1 and human adipocytes. Endocrinology 2005; 146:1328-37. [PMID: 15576463 DOI: 10.1210/en.2004-0777] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The mammalian target of rapamycin (mTOR) pathway has recently emerged as a chronic modulator of insulin-mediated glucose metabolism. In this study, we evaluated the involvement of this pathway in the acute regulation of insulin action in both 3T3-L1 and human adipocytes. Insulin rapidly (t(1/2) = 5 min) stimulated the mTOR pathway, as reflected by a 10-fold stimulation of 70-kDa ribosomal S6 kinase 1 (S6K1) activity in 3T3-L1 adipocytes. Inhibition of mTOR/S6K1 by rapamycin increased insulin-stimulated glucose transport by as much as 45% in 3T3-L1 adipocytes. Activation of mTOR/S6K1 by insulin was associated with a rapamycin-sensitive increase in Ser636/639 phosphorylation of insulin receptor substrate (IRS)-1 but, surprisingly, did not result in impaired IRS-1-associated phosphatidylinositol (PI) 3-kinase activity. However, insulin-induced activation of Akt was increased by rapamycin. Insulin also activated S6K1 and increased phosphorylation of IRS-1 on Ser636/639 in human adipocytes. As in murine cells, rapamycin treatment of human adipocytes inhibited S6K1, blunted Ser636/639 phosphorylation of IRS-1, leading to increased Akt activation and glucose uptake by insulin. Further studies in 3T3-L1 adipocytes revealed that rapamycin prevented the relocalization of IRS-1 from the low-density membranes to the cytosol in response to insulin. Furthermore, inhibition of mTOR markedly potentiated the ability of insulin to increase PI 3,4,5-triphosphate levels concomitantly with an increased phosphorylation of Akt at the plasma membrane, low-density membranes, and cytosol. However, neither GLUT4 nor GLUT1 translocation induced by insulin were increased by rapamycin treatment. Taken together, these results indicate that the mTOR pathway is an important modulator of the signals involved in the acute regulation of insulin-stimulated glucose transport in 3T3-L1 and human adipocytes.
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Affiliation(s)
- Frédéric Tremblay
- Department of Anatomy and Physiology and Lipid Research Unit, Laval University Hospital Research Center, 2705 Laurier Boulevard, Ste-Foy, Québec, Canada G1V 4G2
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Khamzina L, Veilleux A, Bergeron S, Marette A. Increased activation of the mammalian target of rapamycin pathway in liver and skeletal muscle of obese rats: possible involvement in obesity-linked insulin resistance. Endocrinology 2005; 146:1473-81. [PMID: 15604215 DOI: 10.1210/en.2004-0921] [Citation(s) in RCA: 414] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
The mammalian target of rapamycin (mTOR) pathway integrates insulin and nutrient signaling in numerous cell types. Recent studies also suggest that this pathway negatively modulates insulin signaling to phosphatidylinositol 3-kinase/Akt in adipose and muscle cells. However, it is still unclear whether activation of the mTOR pathway is increased in obesity and if it could be involved in the promotion of insulin resistance. In this paper we show that basal (fasting state) activation of mTOR and its downstream target S6K1 is markedly elevated in liver and skeletal muscle of obese rats fed a high fat diet compared with chow-fed, lean controls. Time-course studies also revealed that mTOR and S6K1 activation by insulin was accelerated in tissues of obese rats, in association with increased inhibitory phosphorylation of insulin receptor substrate-1 (IRS-1) on Ser636/Ser639 and impaired Akt activation. The relationship between mTOR/S6K1 overactivation and impaired insulin signaling to Akt was also examined in hepatic cells in vitro. Insulin caused a time-dependent activation of mTOR and S6K1 in HepG2 cells. This was associated with increased IRS-1 phosphorylation on Ser636/Ser639. Inhibition of mTOR/S6K1 by rapamycin blunted insulin-induced Ser636/Ser639 phosphorylation of IRS-1, leading to a rapid (approximately 5 min) and persistent increase in IRS-1-associated phosphatidylinositol 3-kinase activity and Akt phosphorylation. These results show that activation of the mTOR pathway is increased in liver and muscle of high fat-fed obese rats. In vitro studies with rapamycin suggest that mTOR/S6K1 overactivation contributes to elevated serine phosphorylation of IRS-1, leading to impaired insulin signaling to Akt in liver and muscle of this dietary model of obesity.
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Affiliation(s)
- Leila Khamzina
- Department of Anantomy and Physiology and Lipid Research Unit, Laval University Hospital Research Center, 2705 Laurier boulevard, Ste-Foy, Québec, Canada G1V 4G2
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Fouron JC, Gosselin J, Amiel-Tison C, Infante-Rivard C, Fouron C, Skoll A, Veilleux A. Correlation between prenatal velocity waveforms in the aortic isthmus and neurodevelopmental outcome between the ages of 2 and 4 years. Am J Obstet Gynecol 2001; 184:630-6. [PMID: 11262464 DOI: 10.1067/mob.2001.110696] [Citation(s) in RCA: 67] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
OBJECTIVE Experimental studies on fetal lambs have shown that during an increase in the resistance to placental flow the delivery of oxygen to the brain is preserved as long as net flow through the aortic isthmus is antegrade. Our purpose was to determine whether the same changes in aortic isthmus flow in human subjects have any impact on neurodevelopmental outcome. STUDY DESIGN Forty-four fetuses were retrospectively included in this study on the basis of an abnormal Doppler velocity in the umbilical artery. Mean gestational age at delivery was 33.0 +/- 2.0 weeks and mean birth weight 1386 +/- 435 g. The neurodevelopmental condition was assessed between the ages of 2 and 4 years. The developmental score was analyzed in relation to the flow patterns in the fetal aortic isthmus, which were classified as follows: group A, net isthmic flow antegrade (defined as the ratio of the systolic antegrade to the diastolic retrograde velocity integrals) (n = 39); group B, net isthmic flow retrograde (n = 5). RESULTS Nonoptimal neurodevelopment was observed in 19 (49%) of 39 fetuses in group A and in all 5 fetuses (100%) in group B. This difference is significant and leads to a relative risk of 2.05 (95% confidence interval, 1.49-2.83) for neurodevelopmental deficit when predominantly retrograde flow is observed in the fetal aortic isthmus before birth. CONCLUSION Measuring the ratio of antegrade to retrograde velocity integrals in the aortic isthmus could help in the indirect assessment of cerebral oxygenation during placental circulatory insufficiency.
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Affiliation(s)
- J C Fouron
- Department of Pediatrics, Ste-Justine Hospital, University of Montreal, Quebec, Canada
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Abstract
The infrared spectra of ten salts in aqueous solutions were obtained in their solubility range using attenuated total reflection (ATR). The salts are: LiCl, NaCl, KCl, CsCl, MgCl2, NaBr, KBr, NaI, KI, and CsI. The salts, which are completely ionized in water, do not absorb in the IR. Only their interactions with water are observed and analyzed. Factor analysis (FA) applied to the spectra showed that two principal species are present in the solutions: pure water and salt-solvated water. The modifications of the water spectrum are dependent on the nature of the salts, their concentrations and are mainly of first-order. Second-order effects were observed but, being weak, were not investigated. The modifications of the IR-ATR spectrum from pure water to a salt solution are proportional to the modifications of the imaginary part of the refractive index spectrum (k(v)). This indicates that the anomalous dispersion effects do not interfere with the chemical analysis of the IR-ATR spectra. In every salt studied, the two main species present in the solutions remained stable throughout the salt solubility ranges. Comparison between the IR spectra of the different salts solutions indicates that both anions and cations are in strong interaction with water molecules and are solvated together in stable clusters.Key words: IR spectroscopy, ATR, liquid, aqueous solutions, factor analysis, principal spectra, LiCl, NaCl, KCl, CsCl, NaBr, KBr, NaI, KI, CsI, MgCl2.
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Abstract
Sirenomelia, or the mermaid syndrome, is the most extreme example of the caudal regression syndrome. It invariably presents with lower limb fusion, sacral and pelvic bony anomalies, absent external genitalia, anal imperforation, and renal agenesis or dysgenesis. Because of the resultant oligohydramnios, these infants most often have Potter's facies and pulmonary hypoplasia. There are approximately 300 cases reported in the literature, 15% of which are associated with twinning, most often monozygotic. The syndrome of caudal regression is thought to be the result of injury to the caudal mesoderm early in gestation. It has been suggested that the association of the most extreme form of caudal regression, sirenomelia, with monozygotic twinning may represent developmental arrest of the primitive streak, with creation of a second primitive streak that gives rise to the usually normal twin. The embryology of the various presentations of the caudal regression syndrome may be further delineated by studying infants with this dramatic and fatal syndrome.
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Affiliation(s)
- M Di Lorenzo
- Departments of Surgery, Sainte-Justine Hospital, University of Montreal, Quebec, Canada
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Abstract
A follow-up study was done of extremely low-birthweight infants (less than or equal to 1000g) born between 1976 and 1979, a period when aggressive intervention was not routine practice. The survival rate was 19 per cent. 44 of the 46 survivors were followed to a mean age of 6 1/2 years. By five years of age 23 of the 44 children had been admitted to hospital, mainly for surgery and respiratory problems. Eight of 31 five-year-old children were growth-retarded and five of 26 were microcephalic. Among 44 children, ophthalmological problems were found in nine cases and neurosensory impairments (cerebral palsy, deafness) in seven. 12 children were mentally handicapped or had impaired intelligence (IQ or DQ less than 85). Over-all, 14 of the 44 children had impairments, severe in four cases and moderate in 10. Mean verbal IQ was significantly lower than mean performance IQ. Among 37 children in school or in remedial programs, nine required special education and another 12 in regular classes either failed or had very poor results, or needed extra professional help. Only 16 of the children had no significant problems in school. These findings indicate that extremely low birthweight (less than or equal to 1000g) represents a major risk to life, health (hospital admissions), long-term growth, neurosensory integrity, cognitive development and learning potential.
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Affiliation(s)
- F Lefebvre
- Section of Neonatology, Hôpital Ste-Justine, Montréal, Québec
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Lefebvre F, Veilleux A, Bard H. [Premature infants: early discharge at 2000 g]. Union Med Can 1982; 111:953-8. [PMID: 7179595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
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Abstract
A study was conducted to see if the discharge weight of preterm infants born at less than or equal to 2000 g could safely be reduced. A study group (21 infants) was discharged 'early' at a mean weight of 2010 g (1890-2190) provided there were no medical problems, weight gain was adequate, temperature control in room air was stable, all feedings were by breast, and the mother was ready to have the baby home. A control group (17 infants) was discharged at a mean weight of 2261 g (2200-2400). The duration of time in hospital for the 'early' group was shortened by 11.6 days. At expected date of delivery the weight of infants in each group was similar (3095 +/- 403 compared with 3146 +/- 453 g); length, head circumference, and haemoglobin concentration in each group were similar too. There was no morbidity or mortality in either group. Early discharge did not affect mothering confidence. This study shows that low birthweight infants can be discharged early (at 2000 +/- 100 g) provided appropriate criteria are met, home conditions are adequate, and follow-up is available.
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