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Zarantoniello M, Cattaneo N, Conti F, Carrino M, Cardinaletti G, Şener İ, Olivotto I. Mitigating Dietary Microplastic Accumulation and Oxidative Stress Response in European Seabass ( Dicentrarchus labrax) Juveniles Using a Natural Microencapsulated Antioxidant. Antioxidants (Basel) 2024; 13:812. [PMID: 39061881 PMCID: PMC11273845 DOI: 10.3390/antiox13070812] [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: 06/11/2024] [Revised: 07/01/2024] [Accepted: 07/03/2024] [Indexed: 07/28/2024] Open
Abstract
Aquafeed's contamination by microplastics can pose a risk to fish health and quality since they can be absorbed by the gastrointestinal tract and translocate to different tissues. The liver acts as a retaining organ with the consequent triggering of oxidative stress response. The present study aimed to combine the use of natural astaxanthin with natural-based microcapsules to counteract these negative side effects. European seabass juveniles were fed diets containing commercially available fluorescent microplastic microbeads (1-5 μm; 50 mg/kg feed) alone or combined with microencapsulated astaxanthin (AX) (7 g/kg feed; tested for half or whole feeding trial-30 or 60 days, respectively). Fish from the different dietary treatments did not evidence variations in survival and growth performance and did not show pathological alterations at the intestinal level. However, the microplastics were absorbed at the intestinal level with a consequent translocation to the liver, leading, when provided solely, to sod1, sod2, and cat upregulation. Interestingly, the dietary implementation of microencapsulated AX led to a mitigation of oxidative stress. In addition, the microcapsules, due to their composition, promoted microplastic coagulation in the fish gut, limiting their absorption and accumulation in all the tissues analyzed. These results were supported by in vitro tests, which demonstrated that the microcapsules promoted microplastic coagula formation too large to be absorbed at the intestinal level and by the fact that the coagulated microplastics were released through the fish feces.
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Affiliation(s)
- Matteo Zarantoniello
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy; (N.C.); (F.C.); (M.C.); (İ.Ş.)
| | - Nico Cattaneo
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy; (N.C.); (F.C.); (M.C.); (İ.Ş.)
| | - Federico Conti
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy; (N.C.); (F.C.); (M.C.); (İ.Ş.)
| | - Margherita Carrino
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy; (N.C.); (F.C.); (M.C.); (İ.Ş.)
| | - Gloriana Cardinaletti
- Department of Agricultural, Food, Environmental and Animal Sciences, University of Udine, 33100 Udine, Italy;
| | - İdris Şener
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy; (N.C.); (F.C.); (M.C.); (İ.Ş.)
| | - Ike Olivotto
- Department of Life and Environmental Sciences, Università Politecnica delle Marche, 60131 Ancona, Italy; (N.C.); (F.C.); (M.C.); (İ.Ş.)
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Wang Y, Chen L, Zhao J, Xia G, Liu Z, Shi H. Astaxanthin Esters as Functional Food: A Review of Their Nutrition, Phytochemical Structure, Biological Features, and Food Industry Prospects. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024. [PMID: 38856739 DOI: 10.1021/acs.jafc.4c00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2024]
Abstract
Astaxanthin (AST), mainly found in algae and shrimp, is a liposoluble ketone carotenoid with a wide range of biological activities and is commonly used in healthcare interventions and cosmetics. AST has a long chain of conjugated double bonds with hydroxyl and ketone groups at both ends, enabling it to form astaxanthin esters (AST-Es) through esterification with fatty acids. The fatty acid structure of AST plays a key role in the stability, antioxidant activity, and bioavailability of AST-Es. Antarctic krill (Euphausia superba) and blood-red algae Haematococcus Pluvialis (H pluvialis)-derived AST-Es exhibit strong antioxidant activity and numerous biological activities, such as improving insulin resistance, preventing Parkinson's disease, regulating intestinal flora, and alleviating inflammatory bowel disease. This review discusses the significance of AST-Es as functional food ingredients, highlighting their nutritional value, phytochemical structure, biological activities, and potential applications in the food industry.
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Affiliation(s)
- Youyan Wang
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Lipin Chen
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
- College of Food Science and Engineering, Ocean University of China, No. 1299 Sansha Road, Qingdao 266404, China
| | - Jierui Zhao
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Guanghua Xia
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Zhongyuan Liu
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
| | - Haohao Shi
- School of Food Science and Engineering, Hainan University, Haikou 570228, China
- College of Food Science and Engineering, Ocean University of China, No. 1299 Sansha Road, Qingdao 266404, China
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Huang J, Zhang S, Liu D, Feng X, Wang Q, An S, Xu M, Chu L. Preparation and characterization of astaxanthin-loaded microcapsules stabilized by lecithin-chitosan-alginate interfaces with layer-by-layer assembly method. Int J Biol Macromol 2024; 268:131909. [PMID: 38679251 DOI: 10.1016/j.ijbiomac.2024.131909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2024] [Revised: 04/06/2024] [Accepted: 04/25/2024] [Indexed: 05/01/2024]
Abstract
Astaxanthin is a kind of keto-carotenes with various health benefits. However, its solubility and chemical stability are poor, which leads to low bio-availability. Microcapsules have been reported to improve the solubility, chemical stability, and bio-availability of lipophilic bioactives. Freeze-dried astaxanthin-loaded microcapsules were prepared by layer-by-layer assembly of tertiary emulsions with maltodextrin as the filling matrix. Tertiary emulsions were fabricated by performing chitosan and sodium alginate electrostatic deposition onto soybean lecithin stabilized emulsions. 0.9 wt% of chitosan solution, 0.3 wt% of sodium alginate solution and 20 wt% of maltodextrin were optimized as the suitable concentrations. The prepared microcapsules were powders with irregular blocky structures. The astaxanthin loading was 0.56 ± 0.05 % and the encapsulation efficiency was >90 %. A slow release of astaxanthin could be observed in microcapsules promoted by the modulating of chitosan, alginate and maltodextrin. In vitro simulated digestion displayed that the microcapsules increased the bio-accessibility of astaxanthin to 69 ± 1 %. Chitosan, alginate and maltodextrin can control the digestion of microcapsules. The coating of chitosan and sodium alginate, and the filling of maltodextrin in microcapsules improved the chemical stability of astaxanthin. The constructed microcapsules were valuable to enrich scientific knowledge about improving the application of functional ingredients.
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Affiliation(s)
- Juan Huang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China; The East China Science and Technology Research Institute of Changshu Company Limited, Changshu 215500, China.
| | - Shuo Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Dongchen Liu
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Xuan Feng
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Qingding Wang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Shennan An
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Mengting Xu
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Lanling Chu
- Faculty of Food Science and Engineering, School of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
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Ma D, Yang B, Zhao J, Yuan D, Li Q. Advances in protein-based microcapsules and their applications: A review. Int J Biol Macromol 2024; 263:129742. [PMID: 38278389 DOI: 10.1016/j.ijbiomac.2024.129742] [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: 10/20/2023] [Revised: 01/07/2024] [Accepted: 01/23/2024] [Indexed: 01/28/2024]
Abstract
Due to their excellent emulsification, biocompatibility, and biological activity, proteins are widely used as microcapsule wall materials for encapsulating drugs, natural bioactive substances, essential oils, probiotics, etc. In this review, we summarize the protein-based microcapsules, discussing the types of proteins utilized in microcapsule wall materials, the preparation process, and the main factors that influence their properties. Additionally, we conclude with examples of the vital role of protein-based microcapsules in advancing the food industry from primary processing to deep processing and their potential applications in the biomedical, chemical, and textile industries. However, the low stability and controllability of protein wall materials lead to degraded performance and quality of microcapsules. Protein complexes with polysaccharides or modifications to proteins are often used to improve the thermal instability, pH sensitivity, encapsulation efficiency and antioxidant capacity of microcapsules. In addition, factors such as wall material composition, wall material ratio, the ratio of core to wall material, pH, and preparation method all play critical roles in the preparation and performance of microcapsules. The application area and scope of protein-based microcapsules can be further expanded by optimizing the preparation process and studying the microcapsule release mechanism and control strategy.
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Affiliation(s)
- Donghui Ma
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; China National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; CAU-SCCD Advanced Agricultural & Industrial Institute, Chengdu 611400, China
| | - Bingjie Yang
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; China National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China
| | - Jing Zhao
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; China National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; CAU-SCCD Advanced Agricultural & Industrial Institute, Chengdu 611400, China
| | - Dongdong Yuan
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, Beijing Technology and Business University, Beijing 100048, China
| | - Quanhong Li
- College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; China National Engineering Research Center for Fruit & Vegetable Processing, Beijing 100083, China; CAU-SCCD Advanced Agricultural & Industrial Institute, Chengdu 611400, China.
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Huang J, Feng X, Wang Q, Liu D, Zhang S, Chu L. Fabrication and characterization of dihydromyricetin-loaded microcapsules stabilized by glyceryl monostearate and whey protein-xanthan gum. Int J Biol Macromol 2024; 254:128039. [PMID: 37956807 DOI: 10.1016/j.ijbiomac.2023.128039] [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: 08/06/2023] [Revised: 10/17/2023] [Accepted: 11/09/2023] [Indexed: 11/15/2023]
Abstract
Dihydromyricetin (DMY) is a lipophilic nutrient with various potential health benefits; however, its poor storage stability and low solubility and bioavailability limit its applications. This study aims to encapsulate DMY in microcapsules by membrane emulsification and freeze-drying methods to overcome these issues. Glyceryl monostearate (GMS, solid lipid) and octyl and decyl glycerate (ODO, liquid lipid) were applied as the inner cores. Whey protein and xanthan gum (XG) were used as wall materials. The prepared microcapsules had an irregular blocky aggregated structure with rough surfaces. All the microcapsules had a DMY loading of 0.85 %-1.1 % and encapsulation efficiency (EE) >85 %. GMS and XG increased the DMY loading and EE. The addition of GMS and an increased XG concentration led to a decrease in the rehydration rate. The in vitro release and digestion studies revealed that GMS and XG controlled the release and digestion of DMY. The chemical stability results indicated that GMS and XG protected DMY against oxidation. An antioxidant capacity study showed that GMS and XG helped DMY in the microcapsules exert antioxidant effects. This research study provides a platform for designing microcapsules with good stability and high bioavailability to deliver lipophilic bioactive compounds.
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Affiliation(s)
- Juan Huang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China.
| | - Xuan Feng
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Qingding Wang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Dongchen Liu
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Shuo Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu 215500, China
| | - Lanling Chu
- Faculty of Food Science and Engineering, School of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing 210037, China
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Zhang D, He J, Cui J, Wang R, Tang Z, Yu H, Zhou M. Oral Microalgae-Nano Integrated System against Radiation-Induced Injury. ACS NANO 2023; 17:10560-10576. [PMID: 37253200 DOI: 10.1021/acsnano.3c01502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The increasing applications of ionizing radiation in society raise the risk of radiation-induced intestinal and whole-body injury. Astaxanthin is a powerful antioxidant to reduce the reactive oxygen generated from radiation and the subsequent damage. However, the oral administration of astaxanthin remains challenging owing to its low solubility and poor bioavailability. Herein, we facilely construct an orally used microalgae-nano integrated system (SP@ASXnano) against radiation-induced intestinal and whole-body injury, combining natural microalgae Spirulina platensis (SP) with astaxanthin nanoparticles (ASXnano). SP and ASXnano show complementation in drug delivery to improve distribution in the intestine and blood. SP displays limited gastric drug loss, prolonged intestinal retention, constant ASXnano release, and progressive degradation. ASXnano improves drug solubility, gastric stability, cell uptake, and intestinal absorption. SP and ASXnano have synergy in many aspects such as anti-inflammation, microbiota protection, and fecal short-chain fatty acid up-regulation. In addition, the system is ensured with biosafety for long-term administration. The system organically combines the properties of microalgae and nanoparticles, which was expected to expand the medical application of SP as a versatile drug delivery platform.
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Affiliation(s)
- Dongxiao Zhang
- Department of Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
- Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University School of Medicine, Zhejiang University, Haining, 314400, China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jian He
- Department of Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
- Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University School of Medicine, Zhejiang University, Haining, 314400, China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Jiarong Cui
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Ruoxi Wang
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310009, China
| | - Zhe Tang
- Department of Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
| | - Hongyu Yu
- Department of Gastroenterology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, 200120, China
| | - Min Zhou
- Department of Surgery, The Fourth Affiliated Hospital, Zhejiang University School of Medicine, Yiwu, 322000, China
- Zhejiang University-University of Edinburgh Institute (ZJU-UoE Institute), Zhejiang University School of Medicine, Zhejiang University, Haining, 314400, China
- Institute of Translational Medicine, Zhejiang University, Hangzhou, 310009, China
- Cancer Center, Zhejiang University, Hangzhou, 310058, China
- Research Center for Life Science and Human Health, Binjiang Institute of Zhejiang University, Hangzhou, 310053, China
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Huang J, Feng X, Zhang S, Wang L, Yue J, Chu L. Preparation and characterization of astaxanthin-loaded microcapsules and its application in effervescent tablets. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:1421-1431. [PMID: 36156800 DOI: 10.1002/jsfa.12237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2022] [Revised: 09/11/2022] [Accepted: 09/26/2022] [Indexed: 06/16/2023]
Abstract
BACKGROUND Astaxanthin is a type of keto-carotene with potential health benefits. However, astaxanthin has poor solubility and stability, resulting in its low oral bio-availability. Microcapsules can be used to improve the water solubility, stability and oral bio-availability of lipophilic bioactive compounds. Effervescent tablets can further improve the stability, smell and taste of microcapsules, and are more easily accepted by consumers. RESULTS Astaxanthin-loaded microcapsules were prepared by layer-by-layer assembly and freeze-drying technologies. Sodium caseinate and κ-carrageenan were applied as wall materials. The prepared microcapsules had good flow properties and encapsulation efficiencies (> 85%). Fourier transform infrared spectroscopy demonstrated that the mechanisms of layer-by-layer self-assembly between sodium caseinate and κ-carrageenan might be electrostatic adsorption and hydrogen bonding. The preparation process and excipients did not affect the antioxidant effect of astaxanthin. The in vitro simulated digestion study showed that microcapsules were mainly dissolved and digested in the simulated intestinal solution. Compared with its raw material, microencapsulation could improve the bio-accessibility of astaxanthin greatly. Then, astaxanthin-loaded microcapsules were incorporated into effervescent tablets by wet granulation and tablet-pressing methods. The dissolution of astaxanthin from effervescent tablets was over 90% in 2 h, which indicated a good dissolution effect. A cytotoxicity study revealed that astaxanthin loaded effervescent tablets had a good biocompatibility. Encapsulating astaxanthin-loaded microcapsules in effervescent tablets can improve its chemical stability. CONCLUSION Effervescent tablets containing microcapsules could be used to improve the solubility, stability and bio-accessibility of lipophilic bioactive compounds. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Juan Huang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
- The East China Science and Technology Research Institute of Changshu Company Limited, Changshu, China
| | - Xuan Feng
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Shuo Zhang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Lizeng Wang
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Jingjing Yue
- School of Biology and Food Engineering, Changshu Institute of Technology, Changshu, China
| | - Lanling Chu
- Faculty of Food Science and Engineering, School of Light Industry and Food Engineering, Nanjing Forestry University, Nanjing, China
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Zhao YC, Li XY, Wang CC, Yang JY, Xue CH, Zhang TT, Wang YM. Free astaxanthin-rich diets enhanced astaxanthin accumulation in egg yolks compared to esterified astaxanthin-rich diets. Food Chem 2022; 405:134872. [DOI: 10.1016/j.foodchem.2022.134872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 11/01/2022] [Accepted: 11/03/2022] [Indexed: 11/09/2022]
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Zhu K, Yan W, Dai Z, Zhang Y. Astaxanthin Extract from Shrimp ( Trachypenaeus curvirostris) By-Products Improves Quality of Ready-to-Cook Shrimp Surimi Products during Frozen Storage at -18 °C. Foods 2022; 11:foods11142122. [PMID: 35885365 PMCID: PMC9323547 DOI: 10.3390/foods11142122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Revised: 07/12/2022] [Accepted: 07/15/2022] [Indexed: 01/27/2023] Open
Abstract
The effects of astaxanthin extract (AE) from shrimp by-products on the quality and sensory properties of ready-to-cook shrimp surimi products (RC-SSP) during frozen storage at −18 °C were investigated. Changes in 2-thiobarbituric acid reactive substances (TBARS) value, sulfhydryl groups, carbonyls, salt-soluble protein content, textural properties, color, and sensory quality over specific storage days were evaluated. The AE from shrimp by-products contained 4.49 μg/g tocopherol and 23.23 μg/g astaxanthin. The shrimp surimi products supplemented with 30 g/kg AE had higher redness values and greater overall acceptability and texture properties after cooking (p < 0.05). AE showed higher oxidative stability in RC-SSP than the control, as evidenced by lower TBARS and carbonyl content, and higher sulfhydryl and salt-soluble protein content. AE from shrimp by-products had positive effects on the antioxidant activity and color difference of RC-SSP, and could be used as a potential multifunctional additive for the development of shrimp surimi products.
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Wang S, Qi X. The Putative Role of Astaxanthin in Neuroinflammation Modulation: Mechanisms and Therapeutic Potential. Front Pharmacol 2022; 13:916653. [PMID: 35814201 PMCID: PMC9263351 DOI: 10.3389/fphar.2022.916653] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2022] [Accepted: 06/07/2022] [Indexed: 12/03/2022] Open
Abstract
Neuroinflammation is a protective mechanism against insults from exogenous pathogens and endogenous cellular debris and is essential for reestablishing homeostasis in the brain. However, excessive prolonged neuroinflammation inevitably leads to lesions and disease. The use of natural compounds targeting pathways involved in neuroinflammation remains a promising strategy for treating different neurological and neurodegenerative diseases. Astaxanthin, a natural xanthophyll carotenoid, is a well known antioxidant. Mounting evidence has revealed that astaxanthin is neuroprotective and has therapeutic potential by inhibiting neuroinflammation, however, its functional roles and underlying mechanisms in modulating neuroinflammation have not been systematically summarized. Hence, this review summarizes recent progress in this field and provides an update on the medical value of astaxanthin. Astaxanthin modulates neuroinflammation by alleviating oxidative stress, reducing the production of neuroinflammatory factors, inhibiting peripheral inflammation and maintaining the integrity of the blood-brain barrier. Mechanistically, astaxanthin scavenges radicals, triggers the Nrf2-induced activation of the antioxidant system, and suppresses the activation of the NF-κB and mitogen-activated protein kinase pathways. With its good biosafety and high bioavailability, astaxanthin has strong potential for modulating neuroinflammation, although some outstanding issues still require further investigation.
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