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Agrinier AL, Morissette A, Daoust L, Gignac T, Marois J, Varin TV, Pilon G, Larose É, Gagnon C, Desjardins Y, Anhê FF, Carreau AM, Vohl MC, Marette A. Camu-camu decreases hepatic steatosis and liver injury markers in overweight, hypertriglyceridemic individuals: A randomized crossover trial. Cell Rep Med 2024; 5:101682. [PMID: 39168095 PMCID: PMC11384942 DOI: 10.1016/j.xcrm.2024.101682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/16/2024] [Accepted: 07/18/2024] [Indexed: 08/23/2024]
Abstract
Non-alcoholic fatty liver disease (NAFLD) affects 25% of the adult population with no effective drug treatments available. Previous animal studies reported that a polyphenol-rich extract from the Amazonian berry camu-camu (CC) prevented hepatic steatosis in a mouse model of diet-induced obesity. This study aims to determine the impact of CC on hepatic steatosis (primary outcome) and evaluate changes in metabolic and gut microbiota profiles (exploratory outcomes). A randomized, double-blind, placebo-controlled crossover trial is conducted on 30 adults with overweight and hypertriglyceridemia, who consume 1.5 g of CC capsules or placebo daily for 12 weeks. CC treatment decreases liver fat by 7.43%, while it increases by 8.42% during the placebo intervention, showing a significant difference of 15.85%. CC decreases plasma aspartate and alanine aminotransferases levels and promotes changes in gut microbiota composition. These findings support that polyphenol-rich prebiotic may reduce liver fat in adults with overweight, reducing the risk of developing NAFLD.
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Affiliation(s)
- Anne-Laure Agrinier
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Arianne Morissette
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Laurence Daoust
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Théo Gignac
- Department of Medicine, Faculty of Medicine, Centre de Recherche CHU de Québec-Université Laval, Université Laval, Quebec City, QC, Canada
| | - Julie Marois
- Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Thibault V Varin
- Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Geneviève Pilon
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Éric Larose
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada
| | - Claudia Gagnon
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Department of Medicine, Faculty of Medicine, Centre de Recherche CHU de Québec-Université Laval, Université Laval, Quebec City, QC, Canada
| | - Yves Desjardins
- Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada; Department of Plant Science, Faculty of Agriculture and Food sciences, Université Laval, Quebec City, QC, Canada
| | - Fernando F Anhê
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada
| | - Anne-Marie Carreau
- Department of Medicine, Faculty of Medicine, Centre de Recherche CHU de Québec-Université Laval, Université Laval, Quebec City, QC, Canada
| | - Marie-Claude Vohl
- Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada; School of Nutrition, Université Laval, Quebec City, QC, Canada
| | - André Marette
- Department of Medicine, Faculty of Medicine, Québec Heart and Lung Institute (IUCPQ), Université Laval, Quebec City, QC, Canada; Centre Nutrition, santé et société (NUTRISS), Institute of Nutrition and Functional Foods (INAF), Université Laval, Quebec City, QC, Canada.
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Mildenberger J, Rebours C. Green ( Ulva fenestrata) and Brown ( Saccharina latissima) Macroalgae Similarly Modulate Inflammatory Signaling by Activating NF- κB and Dampening IRF in Human Macrophage-Like Cells. J Immunol Res 2024; 2024:8121284. [PMID: 38799117 PMCID: PMC11126347 DOI: 10.1155/2024/8121284] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 02/22/2024] [Accepted: 04/23/2024] [Indexed: 05/29/2024] Open
Abstract
Macroalgae are considered healthy food ingredients due to their content in numerous bioactive compounds, and the traditional use of whole macroalgae in Asian cuisine suggests a contribution to longevity. Although much information is available about the bioactivity of pure algal compounds, such as different polyphenols and polysaccharides, documentation of potential effects of whole macroalgae as part of Western diets is limited. Lifestyle- and age-related diseases, which have a high impact on population health, are closely connected to underlying chronic inflammation. Therefore, we have studied crude extracts of green (Ulva fenestrata) and brown (Saccharina latissima) macroalgae, as two of the most promising food macroalgae in the Nordic countries for their effect on inflammation in vitro. Human macrophage-like reporter THP-1 cells were treated with macroalgae extracts and stimulated with lipopolysaccharide (LPS) to induce inflammatory signalling. Effects of the macroalgae extracts were assessed on transcription factor activity of NF-κB and IRF as well as secretion and/or expression of the cytokines TNF-α and IFN-β and chemokines IL-8 and CXCL10. The crude macroalgae extracts were further separated into polyphenol-enriched and polysaccharide-enriched fractions, which were also tested for their effect on transcription factor activity. Interestingly, we observed a selective activation of NF-κB, when cells were treated with macroalgae extracts. On the other hand, pretreatment with macroalgae extracts selectively repressed IRF activation when inflammatory signaling was subsequently induced by LPS. This effect was consistent for both tested species as well as for polyphenol- and polysaccharide-enriched fractions, of which the latter had more pronounced effects. Overall, this is the first indication of how macroalgae could modulate inflammatory signaling by selective activation and subsequent repression of different pathways. Further in vitro and in vivo studies of this mechanism would be needed to understand how macroalgae consumption could influence the prevention of noncommunicable, lifestyle- and age-related diseases that are highly related to unbalanced inflammatory processes.
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Gignac T, Trépanier G, Pradeau M, Morissette A, Agrinier AL, Larose É, Marois J, Pilon G, Gagnon C, Vohl MC, Marette A, Carreau AM. Metabolic-associated fatty liver disease is characterized by a post-oral glucose load hyperinsulinemia in individuals with mild metabolic alterations. Am J Physiol Endocrinol Metab 2024; 326:E616-E625. [PMID: 38477665 DOI: 10.1152/ajpendo.00294.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Revised: 03/07/2024] [Accepted: 03/11/2024] [Indexed: 03/14/2024]
Abstract
Metabolic-associated fatty liver disease (MAFLD) has been identified as risk factor of incident type 2 diabetes (T2D), but the underlying postprandial mechanisms remain unclear. We compared the glucose metabolism, insulin resistance, insulin secretion, and insulin clearance post-oral glucose tolerance test (OGTT) between individuals with and without MAFLD. We included 50 individuals with a body mass index (BMI) between 25 and 40 kg/m2 and ≥1 metabolic alteration: increased fasting triglycerides or insulin, plasma glucose 5.5-6.9 mmol/L, or glycated hemoglobin 5.7-5.9%. Participants were grouped according to MAFLD status, defined as hepatic fat fraction (HFF) ≥5% on MRI. We used oral minimal model on a frequently sampled 3 h 75 g-OGTT to estimate insulin sensitivity, insulin secretion, and pancreatic β-cell function. Fifty percent of participants had MAFLD. Median age (IQR) [57 (45-65) vs. 57 (44-63) yr] and sex (60% vs. 56% female) were comparable between groups. Post-OGTT glucose concentrations did not differ between groups, whereas post-OGTT insulin concentrations were higher in the MAFLD group (P < 0.03). Individuals with MAFLD exhibited lower insulin clearance, insulin sensitivity, and first-phase pancreatic β-cell function. In all individuals, increased insulin incremental area under the curve and decreased insulin clearance were associated with HFF after adjusting for age, sex, and BMI (P < 0.02). Among individuals with metabolic alterations, the presence of MAFLD was characterized mainly by post-OGTT hyperinsulinemia and reduced insulin clearance while exhibiting lower first phase β-cell function and insulin sensitivity. This suggests that MAFLD is linked with impaired insulin metabolism that may precede T2D.NEW & NOTEWORTHY Using an oral glucose tolerance test, we found hyperinsulinemia, lower insulin sensitivity, lower insulin clearance, and lower first-phase pancreatic β-cell function in individuals with MAFLD. This may explain part of the increased risk of incident type 2 diabetes in this population. These data also highlight implications of hyperinsulinemia and impaired insulin clearance in the progression of MAFLD to type 2 diabetes.
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Affiliation(s)
- Théo Gignac
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
| | - Gabrielle Trépanier
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
| | - Marion Pradeau
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
| | - Arianne Morissette
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
- Axe Obésité, Diabète de type 2 et Métabolisme, Centre de recherche de l'IUCPQ-Université Laval, Québec, Quebec, Canada
| | - Anne-Laure Agrinier
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
- Axe Obésité, Diabète de type 2 et Métabolisme, Centre de recherche de l'IUCPQ-Université Laval, Québec, Quebec, Canada
| | - Éric Larose
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
- Axe Obésité, Diabète de type 2 et Métabolisme, Centre de recherche de l'IUCPQ-Université Laval, Québec, Quebec, Canada
| | - Julie Marois
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
| | - Geneviève Pilon
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
- Axe Obésité, Diabète de type 2 et Métabolisme, Centre de recherche de l'IUCPQ-Université Laval, Québec, Quebec, Canada
| | - Claudia Gagnon
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
- Axe Obésité, Diabète de type 2 et Métabolisme, Centre de recherche de l'IUCPQ-Université Laval, Québec, Quebec, Canada
| | - Marie-Claude Vohl
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
- École de nutrition, Faculté des sciences de l'agriculture et de l'alimentation, Université Laval, Québec, Quebec, Canada
| | - André Marette
- Centre Nutrition, santé et société (NUTRISS), Institut sur la Nutrition et les Aliments Fonctionnels (INAF), Université Laval, Québec, Quebec, Canada
- Axe Obésité, Diabète de type 2 et Métabolisme, Centre de recherche de l'IUCPQ-Université Laval, Québec, Quebec, Canada
| | - Anne-Marie Carreau
- Axe Endocrinologie et Néphrologie, Centre de Recherche du CHU de Québec-Université Laval, Québec, Quebec, Canada
- Département de Médecine, Faculté de Médecine, Université Laval, Québec, Quebec, Canada
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Zhang X, Zhuang H, Wu S, Mao C, Dai Y, Yan H. Marine Bioactive Peptides: Anti-Photoaging Mechanisms and Potential Skin Protective Effects. Curr Issues Mol Biol 2024; 46:990-1009. [PMID: 38392181 PMCID: PMC10887644 DOI: 10.3390/cimb46020063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2023] [Revised: 01/04/2024] [Accepted: 01/13/2024] [Indexed: 02/24/2024] Open
Abstract
Skin photoaging, resulting from prolonged exposure to ultraviolet radiation, is a form of exogenous aging that not only impacts the aesthetic aspect of the skin but also exhibits a strong correlation with the onset of skin cancer. Nonetheless, the safety profile of non-natural anti-photoaging medications and the underlying physiological alterations during the process of photoaging remain inadequately elucidated. Consequently, there exists a pressing necessity to devise more secure interventions involving anti-photoaging drugs. Multiple studies have demonstrated the noteworthy significance of marine biomolecules in addressing safety concerns related to anti-photoaging and safeguarding the skin. Notably, bioactive peptides have gained considerable attention in anti-photoaging research due to their capacity to mitigate the physiological alterations associated with photoaging, including oxidative stress; inflammatory response; the abnormal expression of matrix metalloproteinase, hyaluronidase, and elastase; and excessive melanin synthesis. This review provides a systematic description of the research progress on the anti-photoaging and skin protection mechanism of marine bioactive peptides. The focus is on the utilization of marine bioactive peptides as anti-photoaging agents, aiming to offer theoretical references for the development of novel anti-photoaging drugs and methodologies. Additionally, the future prospects of anti-aging drugs are discussed, providing an initial reference for further research in this field.
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Affiliation(s)
- Xiaoliang Zhang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Hong Zhuang
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Sijia Wu
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Chen Mao
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Yaxi Dai
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
| | - Haiyang Yan
- College of Food Science and Engineering, Jilin University, Changchun 130062, China
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Kim YR, Park MJ, Park SY, Kim JY. Brown Seaweed Consumption as a Promising Strategy for Blood Glucose Management: A Comprehensive Meta-Analysis. Nutrients 2023; 15:4987. [PMID: 38068845 PMCID: PMC10707744 DOI: 10.3390/nu15234987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2023] [Revised: 11/24/2023] [Accepted: 11/29/2023] [Indexed: 12/18/2023] Open
Abstract
Diabetes is a chronic condition that can lead to various complications; therefore, there is a need to emphasize prevention and management. Dietary interventions, such as the Mediterranean diet or calorie-restricted regimens, coupled with exercise-induced weight reduction, have been recommended for enhancing diabetes management. Seaweeds contain various functional components, such as polyphenols and fucoidan, which have been reported to exert multiple benefits, including blood glucose regulation, improved intestinal health, and enhanced of lipid profiles. The association between blood glucose and seaweed consumption has been established in previous research. We searched the PubMed, RISS, Google Scholar, ScienceDirect, and Cochrane Library databases to identify relevant studies after applying the selection/exclusion criteria, and 23 studies were ultimately included in this analysis. Comprehensive Meta-Analysis (CMA) software version 4.0 was used to assess statistical significance and heterogeneity. In this meta-analysis, postprandial blood glucose, glycated hemoglobin (HbA1c), and Homeostatic Model Assessment of Insulin Resistance (HOMA-IR) levels demonstrated significant improvements in the seaweed group compared to the control group. Conversely, fasting blood glucose and insulin levels did not show significant associations with seaweed consumption. Subgroup analysis revealed that a high dose (1000 mg or more) was more beneficial than a low dose, and seaweeds such as Laminaria digitata, Undaria pinnatifida, Acophyllum nodosum, and Fucus vesiculosus were found to be more effective at improving blood glucose levels than control treatments. Therefore, based on our research, seaweed supplementation appears to be a promising strategy for reducing postprandial blood glucose, HbA1c, and HOMA-IR levels, thereby enabling better blood glucose management and leading to a decreased risk of type 2 diabetes.
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Affiliation(s)
| | | | | | - Ji Yeon Kim
- Department of Food Science and Biotechnology, Seoul National University of Science and Technology, 232, Gongneung-ro, Nowon-gu, Seoul 01811, Republic of Korea; (Y.R.K.); (M.J.P.); (S.-y.P.)
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Wu JY, Tso R, Teo HS, Haldar S. The utility of algae as sources of high value nutritional ingredients, particularly for alternative/complementary proteins to improve human health. Front Nutr 2023; 10:1277343. [PMID: 37904788 PMCID: PMC10613476 DOI: 10.3389/fnut.2023.1277343] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Accepted: 09/15/2023] [Indexed: 11/01/2023] Open
Abstract
As the global population continues to grow, the demand for dietary protein is rapidly increasing, necessitating the exploration of sustainable and nutritious protein sources. Algae has emerged as a promising food source due to their high value ingredients such as proteins, as well as for their environmental sustainability and abundance. However, knowledge gaps surrounding dietary recommendations and food applications restrict algae's utilization as a viable protein source. This review aims to address these gaps by assessing the suitability of both microalgae and macroalgae as alternative/complementary protein sources and exploring their potential applications in food products. The first section examines the potential suitability of algae as a major food source by analyzing the composition and bioavailability of key components in algal biomass, including proteins, lipids, dietary fiber, and micronutrients. Secondly, the biological effects of algae, particularly their impact on metabolic health are investigated with an emphasis on available clinical evidence. While evidence reveals protective effects of algae on glucose and lipid homeostasis as well as anti-inflammatory properties, further research is required to understand the longer-term impact of consuming algal protein, protein isolates, and concentrates on metabolic health, including protein metabolism. The review then explores the potential of algal proteins in food applications, including ways to overcome their sensory limitations, such as their dark pigmentation, taste, and odor, in order to improve consumer acceptance. To maximize algae's potential as a valuable protein source in the food sector, future research should prioritize the production of more acceptable algal biomass and explore new advances in food sciences and technology for improved consumer acceptance. Overall, this paper supports the potential utility of algae as a sustainable and healthy ingredient source for widespread use in future food production.
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Affiliation(s)
- Jia Yee Wu
- Clinical Nutrition Research Centre, Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Rachel Tso
- Clinical Nutrition Research Centre, Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Hwee Sze Teo
- Clinical Nutrition Research Centre, Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
| | - Sumanto Haldar
- Clinical Nutrition Research Centre, Singapore Institute of Food and Biotechnology Innovation, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Faculty of Health and Social Sciences, Bournemouth University, Bournemouth, United Kingdom
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Rezaei S, Doaei S, Tabrizi R, Ghobadi S, Zare M, Gholamalizadeh M, Mazloom Z. The effects of macro-algae supplementation on serum lipid, glycaemic control and anthropometric indices: A systematic review and meta-analysis of clinical trials. Endocrinol Diabetes Metab 2023; 6:e439. [PMID: 37469128 PMCID: PMC10495559 DOI: 10.1002/edm2.439] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 06/25/2023] [Accepted: 07/02/2023] [Indexed: 07/21/2023] Open
Abstract
INTRODUCTION Macro-algae products have been shown to ameliorate the metabolic disorders state. Thus, highlighting their function as supplementary therapeutic agents can be a novel strategy for clinical therapies. This systematic review and meta-analysis of clinical trials aimed to summarize the effect of macro-algae consumption on serum lipid profile, glycaemic control and anthropometric factors. METHODS In this systematic review and meta-analysis, a comprehensive search was performed for relevant studies published up to May 2023. The Cochran's Q test and I-square (I2 ) tests were used to evaluate heterogeneity across the included studies. The meta-analysis was conducted using random-effects model (DerSimonian and Laird), and weighted mean difference (WMD) was considered as the pooled effect size. RESULTS Out of 8602 papers in the initial screening, eight clinical trials with a total of 438 participants were included into this meta-analysis. The results indicated that macro-algae supplementation significantly decreased serum levels of total cholesterol (TC) (WMD = -6.7 mg/dL; 95% CI: -12.59, -0.80; item = 0.026) and low-density lipoprotein cholesterol (LDL-c) (WMD = -8.25 mg/dL; 95% CI: -15.38, -1.12; p-value = .023). There was an increase in level of high-density lipoprotein cholesterol (HDL-c) (WMD = 0.48 mg/dL; 95% CI: -2.05, 3.01; p-value = .71) which was not statistically significant. Macro-algae supplementation reduced body mass index (BMI) (WMD = -0.28 kg/m2 ; 95% CI: -0.96, 0.41; p-value = .426), weight (WMD = -0.39 kg; 95% CI: -3.6, 2.83; p-value = .81), waist circumference (WC) (WMD = -0.52 cm; 95% CI: -2.71, 1.66; p-value = .64), fasting blood sugar (FBS) (WMD = -1.95 mg/dL; 95% CI: -5.19, 1.28; p-value = .24) and HbA1c (WMD = -0.02%; 95% CI: -0.14, 0.09; p-value = .66) in intervention group. CONCLUSIONS This meta-analysis indicated that macro-algae supplementation significantly decreased TC and LDL-c level. It can also increase HDL-c level and reduce anthropometric indices and glycaemic control factors.
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Affiliation(s)
- Shahla Rezaei
- Student Research CommitteeShiraz University of Medical SciencesShirazIran
- Nutrition Research Center, School of Nutrition and Food SciencesShiraz University of Medical SciencesShirazIran
| | - Saeid Doaei
- Department of Community Nutrition, Faculty of Nutrition and Food Technology, National Nutrition and Food Technology Research InstituteShahid Beheshti University of Medical SciencesTehranIran
| | - Reza Tabrizi
- Non‐Communicable Diseases Research CenterFasa University of Medical SciencesFasaIran
| | - Saeed Ghobadi
- Nutrition Research Center, School of Nutrition and Food SciencesShiraz University of Medical SciencesShirazIran
- Institute for Physical Activity and Nutrition, School of Exercise and Nutrition SciencesDeakin UniversityMelbourneVictoriaAustralia
| | - Morteza Zare
- Nutrition Research Center, School of Nutrition and Food SciencesShiraz University of Medical SciencesShirazIran
| | | | - Zohreh Mazloom
- Department of Clinical Nutrition, School of Nutrition and Food SciencesShiraz University of Medical SciencesShirazIran
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Xu Y, Jia X, Zhang W, Xie Q, Zhu M, Zhao Z, Hao J, Li H, Du J, Liu Y, Feng H, He J, Li H. The effects of Ascophyllum nodosum, Camellia sinensis-leaf extract, and their joint interventions on glycolipid and energy metabolism in obese mice. Front Nutr 2023; 10:1242157. [PMID: 37693249 PMCID: PMC10483828 DOI: 10.3389/fnut.2023.1242157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2023] [Accepted: 07/31/2023] [Indexed: 09/12/2023] Open
Abstract
Objectives Obesity is often associated with glucolipid and/or energy metabolism disorders. Ascophyllum nodosum extract (seaweed extract, SE) and Camellia sinensis-leaf extract (tea extract, TE) have been reported to promote positive metabolic effects through different mechanisms. We investigated the effects of SE and TE on metabolic homeostasis in diet-induced obese mice and discussed their functional characteristics. Methods Male C57BL/6J mice fed with high-fat diets for 8 weeks were established as obese models and subsequently divided into different intervention groups, followed by SE, TE, and their joint interventions for 10 weeks. Body weight and food intake were monitored. Fasting glucose and oral glucose tolerance tests were interspersed during the experiment. After the intervention, the effects on obesity control were assessed based on body composition, liver pathology section, blood lipids and glucose, respiratory exchange ratio (RER), energy expenditure (EE1, EE2, and EE3), inflammatory factors, lipid anabolism enzymes, and gut flora of the obese mice. Results After continuous gavage intervention, the mice in the intervention groups exhibited lower body weight (lower ~4.93 g, vs. HFD 38.02 g), peri-testicular fat masses (lower ~0.61 g, vs. HFD 1.92 g), and perirenal fat masses (lower ~0.21 g, vs. HFD mice 0.70 g). All interventions prevented diet-induced increases in plasma levels of glucose, adiponectin, leptin, and the inflammatory factors IL-1β and TNF-α. The RER was modified by the interventions, while the rhythm of the RER was not. Blood lipids (total cholesterol, triglycerides, and LDL) decreased and were associated with lower lipid anabolism enzymes. In addition, the SE and TE interventions altered the structure and abundance of specific flora. Different interventions inhibited the growth of different genera positively associated with obesity (Escherichia-Shigella, Helicobacter, etc.) and promoted the growth of Akkermansia and Bacteroides, thus affecting the chronic inflammatory state. Conclusion SE and TE both have synergistic effects on weight control and glucolipid metabolism regulation by improving insulin sensitivity and reducing lipid synthesis-related enzyme expression, whereas the combination of SE and TE (3:1) has a better effect on regulating energy metabolism and inhibiting chronic inflammation.
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Affiliation(s)
- Yuhan Xu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Xiuzhen Jia
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Wei Zhang
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Qiaoling Xie
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Meizhen Zhu
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
| | - Zifu Zhao
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Jingyu Hao
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Haoqiu Li
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Jinrui Du
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Yan Liu
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Haotian Feng
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Jian He
- Inner Mongolia Dairy Technology Research Institute Co., Ltd., Hohhot, China
- Yili Innovation Center, Inner Mongolia Yili Industrial Group Co., Ltd., Hohhot, China
| | - Hongwei Li
- State Key Laboratory of Vaccines for Infectious Diseases, Xiang An Biomedicine Laboratory, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, National Innovation Platform for Industry-Education Integration in Vaccine Research, School of Public Health, Xiamen University, Xiamen, China
- School of Public Health, Xiamen University, Xiamen, China
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9
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Shin D, Shim SR, Wu Y, Hong G, Jeon H, Kim CG, Lee KJ. How Do Brown Seaweeds Work on Biomarkers of Dyslipidemia? A Systematic Review with Meta-Analysis and Meta-Regression. Mar Drugs 2023; 21:md21040220. [PMID: 37103359 PMCID: PMC10144066 DOI: 10.3390/md21040220] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 03/27/2023] [Accepted: 03/27/2023] [Indexed: 03/31/2023] Open
Abstract
Dyslipidemia is a common chronic disease that increases the risk of cardiovascular disease. Diet plays an important role in the development of dyslipidemia. As people pay increased attention to healthy eating habits, brown seaweed consumption is increasing, particularly in East Asian countries. The association between dyslipidemia and brown seaweed consumption has been previously demonstrated. We searched for keywords associated with brown seaweed and dyslipidemia in electronic databases such as PubMed, Embase, and Cochrane. Heterogeneity was estimated using the I2 statistic. The 95% confidence interval (CI) of the forest plot and heterogeneity were confirmed using meta-ANOVA and meta-regression. Funnel plots and publication bias statistical tests were used to determine publication bias. Statistical significance was set at p < 0.05. In this meta-analysis, we found that brown seaweed intake significantly decreased the levels of total cholesterol (mean difference (MD): −3.001; 95% CI: −5.770, −0.232) and low-density lipoprotein (LDL) cholesterol (MD: −6.519; 95% CI: −12.884, −0.154); nevertheless, the statistically significant association of brown seaweed intake with high-density lipoprotein (HDL) cholesterol and triglycerides were not observed in our study (MD: 0.889; 95% CI: −0.558, 2.335 and MD: 8.515; 95% CI: −19.354, 36.383). Our study demonstrated that brown seaweed and its extracts decreased total cholesterol and LDL cholesterol levels. The use of brown seaweeds may be a promising strategy to reduce the risk of dyslipidemia. Future studies involving a larger population are warranted to investigate the dose–response association of brown seaweed consumption with dyslipidemia.
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Vasarri M, Degl’Innocenti D. News and Updates from 2022 on Antioxidant and Anti-Inflammatory Properties of Marine Products. Mar Drugs 2022; 21:md21010026. [PMID: 36662199 PMCID: PMC9864926 DOI: 10.3390/md21010026] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Accepted: 12/27/2022] [Indexed: 12/30/2022] Open
Abstract
Inflammation and oxidative stress are often the common denominators of most modern chronic diseases and disorders, resulting in serious problems for health care systems [...].
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11
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Catarino MD, Pires SMG, Silva S, Costa F, Braga SS, Pinto DCGA, Silva AMS, Cardoso SM. Overview of Phlorotannins' Constituents in Fucales. Mar Drugs 2022; 20:754. [PMID: 36547901 PMCID: PMC9786115 DOI: 10.3390/md20120754] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2022] [Revised: 11/23/2022] [Accepted: 11/24/2022] [Indexed: 12/03/2022] Open
Abstract
Fucales are an order within the Phaeophyceae that include most of the common littoral seaweeds in temperate and subtropical coastal regions. Many species of this order have long been a part of human culture with applications as food, feedand remedies in folk medicine. Apart from their high nutritional value, these seaweeds are also a well-known reservoir of multiple bioactive compounds with great industrial interest. Among them, phlorotannins, a unique and diverse class of brown algae-exclusive phenolics, have gathered much attention during the last few years due to their numerous potential health benefits. However, due to their complex structural features, combined with the scarcity of standards, it poses a great challenge to the identification and characterization of these compounds, at least with the technology currently available. Nevertheless, much effort has been taken towards the elucidation of the structural features of phlorotannins, which have resulted in relevant insights into the chemistry of these compounds. In this context, this review addresses the major contributions and technological advances in the field of phlorotannins extraction and characterization, with a particular focus on Fucales.
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Affiliation(s)
- Marcelo D Catarino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sónia M G Pires
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sónia Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Filipa Costa
- School of Engineering, University of Minho, Campus of Azurém, 4800-058 Guimarães, Portugal
| | - Susana S Braga
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Diana C G A Pinto
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Artur M S Silva
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Susana M Cardoso
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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12
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Tung YT, Wu CH, Chen WC, Pan CH, Chen YW, Tsao SP, Chen CJ, Huang HY. Ascophyllum nodosum and Fucus vesiculosus Extracts Improved Lipid Metabolism and Inflammation in High-Energy Diet-Induced Hyperlipidemia Rats. Nutrients 2022; 14:4665. [PMID: 36364926 PMCID: PMC9658475 DOI: 10.3390/nu14214665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Revised: 10/28/2022] [Accepted: 11/02/2022] [Indexed: 10/28/2023] Open
Abstract
Ascophyllum nodosum and Fucus vesiculosus both contain unique polyphenols called phlorotannins. Phlorotannins reportedly possess various pharmacological activities. A previous study reported that the activity of phlorotannin is strongly correlated with the normalization of metabolic function, and phlorotannins are extremely promising nutrients for use in the treatment of metabolic syndrome. To date, no study has explored the antihyperlipidemic effects of phlorotannins from A. nodosum and F. vesiculosus in animal models. Therefore, in the present study, we investigated the effects of phlorotannins using a rat model of high-energy diet (HED)-induced hyperlipidemia. The results showed that the rats that were fed an HED and treated with phlorotannin-rich extract from A. nodosum and F. vesiculosus had significantly lower serum fasting blood sugar (FBS), aspartate aminotransferase (AST), alanine aminotransferase (ALT), total cholesterol (TC), triacylglyceride (TG) and free fatty acids (FFAs) levels and hepatic TG level and had higher serum insulin, high-density lipoprotein cholesterol (HDL-C) levels and lipase activity in their fat tissues than in the case with the rats that were fed the HED alone. A histopathological analysis revealed that phlorotannin-rich extract could significantly reduce the size of adipocytes around the epididymis. In addition, the rats treated with phlorotannin-rich extract had significantly lowered interleukin 6 (IL-6) and tumor necrosis factor alpha (TNF-α) levels and increased superoxide dismutase (SOD) and glutathione peroxidase (GPX) activities than did those in the HED group. These results suggested that the phlorotannin-rich extract stimulated lipid metabolism and may have promoted lipase activity in rats with HED-induced hyperlipidemia. Our results indicated that A. nodosum and F. vesiculosus, marine algae typically used as health foods, have strong antihyperlipidemic effects and may, therefore, be useful for preventing atherosclerosis. These algae may be incorporated into antihyperlipidemia pharmaceuticals and functional foods.
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Affiliation(s)
- Yu-Tang Tung
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| | - Chieh-Hsi Wu
- School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Wen-Chao Chen
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
| | - Chun-Hsu Pan
- School of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Yi-Wen Chen
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan
| | - Shu-Ping Tsao
- Ph.D. Program in Drug Discovery and Development Industry, College of Pharmacy, Taipei Medical University, Taipei 110, Taiwan
| | - Chia-Jung Chen
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan
| | - Hui-Yu Huang
- Graduate Institute of Metabolism and Obesity Sciences, Taipei Medical University, Taipei 110, Taiwan
- Research Center for Digestive Medicine, Taipei Medical University Hospital, Taipei 110, Taiwan
- Neuroscience Research Center, Taipei Medical University, Taipei 110, Taiwan
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13
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Yang Y, Liang M, Ouyang D, Tong H, Wu M, Su L. Research Progress on the Protective Effect of Brown Algae-Derived Polysaccharides on Metabolic Diseases and Intestinal Barrier Injury. Int J Mol Sci 2022; 23:10784. [PMID: 36142699 PMCID: PMC9503908 DOI: 10.3390/ijms231810784] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/12/2022] [Accepted: 09/13/2022] [Indexed: 11/16/2022] Open
Abstract
In the human body, the intestine is the largest digestive and immune organ, where nutrients are digested and absorbed, and this organ plays a key role in host immunity. In recent years, intestinal health issues have gained attention and many studies have shown that oxidative stress, inflammation, intestinal barrier damage, and an imbalance of intestinal microbiota may cause a range of intestinal diseases, as well as other problems. Brown algae polysaccharides, mainly including alginate, fucoidan, and laminaran, are food-derived natural products that have received wide attention from scholars owing to their good biological activity and low toxic side effects. It has been found that brown algae polysaccharides can repair intestinal physical, chemical, immune and biological barrier damage. Principally, this review describes the protective effects and mechanisms of brown algae-derived polysaccharides on intestinal health, as indicated by the ability of polysaccharides to maintain intestinal barrier integrity, inhibit lipid peroxidation-associated damage, and suppress inflammatory cytokines. Furthermore, our review aims to provide new ideas on the prevention and treatment of intestinal diseases and act as a reference for the development of fucoidan as a functional product for intestinal protection.
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Affiliation(s)
- Ying Yang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Meina Liang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Dan Ouyang
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Haibin Tong
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Mingjiang Wu
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
| | - Laijin Su
- College of Life and Environmental Science, Wenzhou University, Wenzhou 325035, China
- Zhejiang Provincial Key Laboratory for Water Environment and Marine Biological Resources Protection, Wenzhou University, Wenzhou 325035, China
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Updated Information of the Effects of (Poly)phenols against Type-2 Diabetes Mellitus in Humans: Reinforcing the Recommendations for Future Research. Nutrients 2022; 14:nu14173563. [PMID: 36079821 PMCID: PMC9460145 DOI: 10.3390/nu14173563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 08/18/2022] [Accepted: 08/26/2022] [Indexed: 11/17/2022] Open
Abstract
(Poly)phenols have anti-diabetic properties that are mediated through the regulation of the main biomarkers associated with type 2 diabetes mellitus (T2DM) (fasting plasma glucose (FPG), glycated hemoglobin (HbA1c), insulin resistance (IR)), as well as the modulation of other metabolic, inflammatory and oxidative stress pathways. A wide range of human and pre-clinical studies supports these effects for different plant products containing mixed (poly)phenols (e.g., berries, cocoa, tea) and for some single compounds (e.g., resveratrol). We went through some of the latest human intervention trials and pre-clinical studies looking at (poly)phenols against T2DM to update the current evidence and to examine the progress in this field to achieve consistent proof of the anti-diabetic benefits of these compounds. Overall, the reported effects remain small and highly variable, and the accumulated data are still limited and contradictory, as shown by recent meta-analyses. We found newly published studies with better experimental strategies, but there were also examples of studies that still need to be improved. Herein, we highlight some of the main aspects that still need to be considered in future studies and reinforce the messages that need to be taken on board to achieve consistent evidence of the anti-diabetic effects of (poly)phenols.
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