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Heyen S, Schneider V, Hüppe L, Meyer B, Wilkes H. Variations of intact phospholipid compositions in the digestive system of Antarctic krill, Euphausia superba, between summer and autumn. PLoS One 2023; 18:e0295677. [PMID: 38157351 PMCID: PMC10756546 DOI: 10.1371/journal.pone.0295677] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 11/28/2023] [Indexed: 01/03/2024] Open
Abstract
The biochemical composition of Antarctic krill, Euphausia superba, is largely determined by their feeding behaviour. As they supply energy for animals of a higher trophic level and are also commercialized for human consumption, the interest in research on the species is high. Lipids, especially phospholipids, make up a high proportion of dry weight in krill. Seasonal changes are well documented in the fingerprint of free fatty acids analysed after hydrolysis of phospholipids, but the underlying intact polar lipids are rarely considered. In this study, we evaluated the compositions of intact phospholipids (IPLs) in the stomach, digestive gland and hind gut of Antarctic krill caught in summer and autumn at the Antarctic Peninsula region. Using high-resolution mass spectrometry, the fatty acid composition of 179 intact phospholipids could be resolved. Most IPLs were phosphatidylcholines, followed by phosphatidylethanolamines. Several very long chain polyunsaturated fatty acids up to 38:8, which have not been reported in krill before, were identified. The composition shifted to higher molecular weight IPLs with a higher degree of unsaturation for summer samples, especially for samples of the digestive gland. The data supplied in this paper provides new insights into lipid dynamics between summer and autumn usually described by free fatty acid biomarkers.
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Affiliation(s)
- Simone Heyen
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Vivien Schneider
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Lukas Hüppe
- Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
- Julius-Maximilians-University of Würzburg, Würzburg, Germany
| | - Bettina Meyer
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
- Alfred Wegener Institute for Polar and Marine Research, Bremerhaven, Germany
- Helmholtz Institute for Marine Functional Biodiversity (HIFMB), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
| | - Heinz Wilkes
- Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany
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Khan I, Hussain M, Jiang B, Zheng L, Pan Y, Hu J, Khan A, Ashraf A, Zou X. Omega-3 long-chain polyunsaturated fatty acids: Metabolism and health implications. Prog Lipid Res 2023; 92:101255. [PMID: 37838255 DOI: 10.1016/j.plipres.2023.101255] [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: 06/25/2023] [Revised: 10/04/2023] [Accepted: 10/09/2023] [Indexed: 10/16/2023]
Abstract
Recently, omega-3 long-chain polyunsaturated fatty acids (n-3 LC-PUFAs) have gained substantial interest due to their specific structure and biological functions. Humans cannot naturally produce these fatty acids (FAs), making it crucial to obtain them from our diet. This comprehensive review details n-3 LC-PUFAs and their role in promoting and maintaining optimal health. The article thoroughly analyses several sources of n-3 LC-PUFAs and their respective bioavailability, covering marine, microbial and plant-based sources. Furthermore, we provide an in-depth analysis of the biological impacts of n-3 LC-PUFAs on health conditions, with particular emphasis on cardiovascular disease (CVD), gastrointestinal (GI) cancer, diabetes, depression, arthritis, and cognition. In addition, we highlight the significance of fortification and supplementation of n-3 LC-PUFAs in both functional foods and dietary supplements. Additionally, we conducted a detailed analysis of the several kinds of n-3 LC-PUFAs supplements currently available in the market, including an assessment of their recommended intake, safety, and effectiveness. The dietary guidelines associated with n-3 LC-PUFAs are also highlighted, focusing on the significance of maintaining a well-balanced intake of n-3 PUFAs to enhance health benefits. Lastly, we highlight future directions for further research in this area and their potential implications for public health.
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Affiliation(s)
- Imad Khan
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Mudassar Hussain
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Bangzhi Jiang
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Lei Zheng
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Yuechao Pan
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Jijie Hu
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Adil Khan
- Key Laboratory of Industrial Biotechnology, Ministry of Education, Jiangnan University, Wuxi 214122, China
| | - Azqa Ashraf
- School of Food Science and Engineering, Ocean University of China, Qingdao 2666100, China
| | - Xiaoqiang Zou
- State Key Laboratory of Food Science and Resources, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
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Nyquist NF, Burri L, Jensen RB. Effect of dietary krill oil supplementation on horse red blood cell membrane fatty acid composition and blood parameters. J Anim Physiol Anim Nutr (Berl) 2023; 107:1251-1261. [PMID: 37144326 DOI: 10.1111/jpn.13828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 03/07/2023] [Accepted: 04/18/2023] [Indexed: 05/06/2023]
Abstract
Supplementation with marine-derived n-3 long-chain polyunsaturated fatty acids (LC PUFAs), eicosapentaenoic acid (EPA, 20:5 n-3) and docosahexaenoic acid (DHA, 22:6 n-3) is linked to beneficial health effects in both humans and horses. Krill oil (KO), which is extracted from the Antarctic krill (Euphausia superba), is well documented as a safe and biologically available dietary supplement in humans and several animal species, but there is a lack of documentation regarding its effect as a dietary ingredient for horses. The objective of this study was to test whether KO as a dietary supplement had the ability to raise horse red blood cell (RBC) membrane EPA and DHA, expressed as the n-3 index. Five nonworking Norwegian cold-blooded trotter horse geldings (body weight [BW]: 567 ± 38 kg) were supplemented with KO (10 mL/100 kg BW) for 35 days in a longitudinal study. Blood samples were analysed for RBC membrane fatty acid (FA) profile, haematology and serum biochemistry every 7th day. KO was well accepted by all horses, and no adverse health effects were observed during the 35-day trial period. KO supplementation affected the RBC membrane FA profile by increasing the n-3 index from Day 0 to 35 (Day 0: 0.53% vs. Day 35: 4.05% of total RBC FAs). The observed increase in the sum of EPA and DHA (p < 0.001), total n-3 FAs (p < 0.001) and the reduction of n-6 FAs (p < 0.044) resulted in a lower n-6:n-3 ratio (p < 0.001) by Day 35 of KO supplementation. In conclusion, the RBC n-3 index was increased and the general n-6:n-3 ratio was decreased in horses receiving 35-day dietary KO supplementation.
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Affiliation(s)
- Nicole Frost Nyquist
- Department of Paraclinical Sciences, Faculty of Veterinary Sciences, Norwegian University of Life Sciences, Ås, Norway
| | - Lena Burri
- Aker BioMarine Antarctic AS, Lysaker, Norway
| | - Rasmus Bovbjerg Jensen
- Department of Animal and Aquacultural Sciences, Faculty of Bioscience, Norwegian University of Life Sciences, Ås, Norway
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Navarro López E, Jiménez Callejón MJ, Macías Sánchez MD, González Moreno PA, Robles Medina A. Obtaining eicosapentaenoic acid-enriched polar lipids from microalga Nannochloropsis sp. by lipase-catalysed hydrolysis. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103073] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/31/2023]
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Shi J, Sun X, Wang Y, Yin S, Liu Y, Xu YJ. Foodomics reveals altered lipid and protein profiles of Antarctic krill (Euphausia superba) under different processing. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Sun X, Yang Y, Sun X, Meng H, Hao W, Yin J, Ma F, Guo X, Du L, Sun L, Wu H. Krill Oil Turns Off TGF-β1 Profibrotic Signaling in the Prevention of Diabetic Nephropathy. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:9865-9876. [PMID: 35916281 DOI: 10.1021/acs.jafc.2c02850] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Diabetic nephropathy (DN), a severe microvascular complication of diabetes mellitus (DM), results in high mortality due to the lack of effective interventions. The current study investigated the preventive effect of krill oil (KO) on DN using a type 2 DM mouse model induced by streptozotocin and high-fat diet for 24 weeks. The diabetic mice developed albuminuria, mesangial matrix accumulation, glomerular hypertrophy, and fibrosis formation, with an increase in renal proinflammatory, oxidative and profibrotic gene expression. KO significantly prevented these effects but did not improve hyperglycemia and glucose intolerance. In high-glucose-treated mesangial cells (MCs), KO preferably modulated TGF-β1 signaling as revealed by RNA-sequencing. In TGF-β1-treated MCs, KO abolished SMAD2/3 phosphorylation and nuclear translocation and activated Smad7 gene expression. The action of KO on the SMADs was confirmed in the diabetic kidneys. Therefore, KO may prevent DN predominantly by suppressing the TGF-β1 signaling pathway.
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Affiliation(s)
- Xuechun Sun
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Yu Yang
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Xiaodan Sun
- Intensive Care Unit, The Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Rd., Jinan, Shandong 250033, China
| | - Huali Meng
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Wenhao Hao
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Jialin Yin
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Fuzhe Ma
- Department of Nephrology, The First Hospital of Jilin University, 71 Xinmin St., Changchun, Jilin 130021, China
| | - Xin Guo
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Lei Du
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Lei Sun
- Department of Endocrinology, Qilu Hospital, Cheeloo College of Medicine, Shandong University, 107 Wenhuaxi Rd., Jinan, Shandong 250012, China
- Institute of Endocrine and Metabolic Diseases of Shandong University, 107 Wenhuaxi Rd., Jinan, Shandong 250012, China
| | - Hao Wu
- Research Center of Translational Medicine, Jinan Central Hospital, Shandong University, 105 Jiefang Rd., Jinan, Shandong 250013, China
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan, Shandong 250012, China
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Ogino M, Nakazawa A, Shiokawa KI, Kikuchi H, Sato H, Onoue S. Krill oil-based self-emulsifying drug delivery system to improve oral absorption and renoprotective function of ginger extract. PHARMANUTRITION 2022. [DOI: 10.1016/j.phanu.2021.100285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Mitrovic M, Sistilli G, Horakova O, Rossmeisl M. Omega-3 phospholipids and obesity-associated NAFLD: Potential mechanisms and therapeutic perspectives. Eur J Clin Invest 2022; 52:e13650. [PMID: 34291454 DOI: 10.1111/eci.13650] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2021] [Revised: 07/09/2021] [Accepted: 07/19/2021] [Indexed: 02/06/2023]
Abstract
Prevalence of non-alcoholic fatty liver disease (NAFLD) increases in line with obesity and type 2 diabetes, and there is no approved drug therapy. Polyunsaturated fatty acids of n-3 series (omega-3) are known for their hypolipidaemic and anti-inflammatory effects. Existing clinical trials suggest varying effectiveness of triacylglycerol- or ethyl ester-bound omega-3 in the treatment of NAFLD, without affecting advanced stages such as non-alcoholic steatohepatitis. Preclinical studies suggest that the lipid class used to supplement omega-3 may determine the extent and nature of their effects on metabolism. Phospholipids of marine origin represent an alternative source of omega-3. The aim of this review is to summarise the available evidence on the use of omega-3 phospholipids, primarily in obesity-related NAFLD, and to outline perspectives of their use in the prevention/treatment of NAFLD. A PubMed literature search was conducted in May 2021. In total, 1088 articles were identified, but based on selection criteria, 38 original papers were included in the review. Selected articles describing the potential mechanisms of action of omega-3 phospholipids have also been included. Preclinical evidence clearly indicates that omega-3 phospholipids have strong antisteatotic effects in the liver, which are stronger compared to omega-3 administered as triacylglycerols. Multiple mechanisms are likely involved in the overall antisteatotic effects, involving not only the liver but also adipose tissue and the gut. Robust preclinical evidence for strong antisteatotic effects of omega-3 phospholipids in the liver should be confirmed in clinical trials. Further research is needed on the possible effects of omega-3 phospholipids on advanced NAFLD.
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Affiliation(s)
- Marko Mitrovic
- Laboratory of Adipose Tissue Biology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Gabriella Sistilli
- Laboratory of Adipose Tissue Biology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Olga Horakova
- Laboratory of Adipose Tissue Biology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
| | - Martin Rossmeisl
- Laboratory of Adipose Tissue Biology, Institute of Physiology of the Czech Academy of Sciences, Prague, Czech Republic
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Jayathilake AG, Kadife E, Kuol N, Luwor RB, Nurgali K, Su XQ. Krill oil supplementation reduces the growth of CT-26 orthotopic tumours in Balb/c mice. BMC Complement Med Ther 2022; 22:34. [PMID: 35120511 PMCID: PMC8817584 DOI: 10.1186/s12906-022-03521-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2021] [Accepted: 01/25/2022] [Indexed: 12/09/2022] Open
Abstract
Background We have previously reported that the free fatty acid extract (FFAE) of krill oil (KO) significantly inhibits the proliferation and migration, and induces apoptosis of colorectal cancer (CRC) cells. This study aimed to investigate the in vivo efficacy of various doses of KO supplementation on the inhibition of CRC tumour growth, molecular markers of proliferation, angiogenesis, apoptosis, the epidermal growth factor receptor (EGFR) and its downstream molecular signalling. Methods Male Balb/c mice were randomly divided into four groups with five in each group. The control (untreated) group received standard chow diet; and other three groups received KO supplementation at 5%, 10%, and 15% of their daily dietary intake respectively for three weeks before and after the orthotopic implantation of CT-26 CRC cells in their caecum. The expression of cell proliferation marker Ki-67 and angiogenesis marker CD-31 were assessed by immunohistochemistry. The expression of EGFR, phosphorylated EGFR (pEGFR), protein kinase B (AKT), pAKT, extracellular signal-regulated kinase (ERK1/2), pERK1/2, cleaved caspase-7, cleaved poly (ADP-ribose) polymerase (PARP), and DNA/RNA damage were determined by western blot. Results KO supplementation reduced the CRC tumour growth in a dose-dependent manner; with 15% of KO being the most effective in reduction of tumour weight and volume (68.5% and 68.3% respectively, P < 0.001), inhibition of cell proliferation by 69.9% (P < 0.001) and microvessel density by 72.7% (P < 0.001). The suppressive effects of KO on EGFR and its downstream signalling, ERK1/2 and AKT, were consistent with our previous in vitro observations. Furthermore, KO exhibited pro-apoptotic effects on tumour cells as indicated by an increase in the expression of cleaved PARP by 3.9-fold and caspase-7 by 8.9-fold. Conclusions This study has demonstrated that KO supplementation reduces CRC tumour growth by inhibiting cancer cell proliferation and blood vessel formation and inducing apoptosis of tumour cells. These anti-cancer effects are associated with the downregulation of the EGFR signalling pathway and activation of caspase-7, PARP cleavage, and DNA/RNA damage. Supplementary Information The online version contains supplementary material available at 10.1186/s12906-022-03521-4.
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Affiliation(s)
| | - Elif Kadife
- Institute for Health and Sport, Victoria University, Melbourne, 8001, Australia
| | - Nyanbol Kuol
- Institute for Health and Sport, Victoria University, Melbourne, 8001, Australia
| | - Rodney Brain Luwor
- Department of Surgery, The Royal Melbourne Hospital, The University of Melbourne, Parkville, Australia
| | - Kulmira Nurgali
- Institute for Health and Sport, Victoria University, Melbourne, 8001, Australia.,Department of Medicine, Western Health, The University of Melbourne, Melbourne, Australia.,Regenerative Medicine and Stem Cells Program, Australian Institute for Musculoskeletal Sciences (AIMSS), Melbourne, Australia
| | - Xiao Qun Su
- Institute for Health and Sport, Victoria University, Melbourne, 8001, Australia.
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Sun X, Sun X, Meng H, Wu J, Guo X, Du L, Wu H. Krill Oil Inhibits NLRP3 Inflammasome Activation in the Prevention of the Pathological Injuries of Diabetic Cardiomyopathy. Nutrients 2022; 14:nu14020368. [PMID: 35057549 PMCID: PMC8780413 DOI: 10.3390/nu14020368] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 01/09/2022] [Accepted: 01/09/2022] [Indexed: 02/06/2023] Open
Abstract
Diabetic cardiomyopathy (DCM) is a common complication of diabetes mellitus (DM), resulting in high mortality. Myocardial fibrosis, cardiomyocyte apoptosis and inflammatory cell infiltration are hallmarks of DCM, leading to cardiac dysfunction. To date, few effective approaches have been developed for the intervention of DCM. In the present study, we investigate the effect of krill oil (KO) on the prevention of DCM using a mouse model of DM induced by streptozotocin and a high-fat diet. The diabetic mice developed pathological features, including cardiac fibrosis, apoptosis and inflammatory cell infiltration, the effects of which were remarkably prevented by KO. Mechanistically, KO reversed the DM-induced cardiac expression of profibrotic and proinflammatory genes and attenuated DM-enhanced cardiac oxidative stress. Notably, KO exhibited a potent inhibitory effect on NLR family pyrin domain containing 3 (NLRP3) inflammasome that plays an important role in DCM. Further investigation showed that KO significantly upregulated the expression of Sirtuin 3 (SIRT3) and peroxisome proliferator-activated receptor-γ coactivator 1α (PGC-1α), which are negative regulators of NLRP3. The present study reports for the first time the preventive effect of KO on the pathological injuries of DCM, providing SIRT3, PGC-1α and NLRP3 as molecular targets of KO. This work suggests that KO supplementation may be a viable approach in clinical prevention of DCM.
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Affiliation(s)
- Xuechun Sun
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan 250012, China; (X.S.); (H.M.); (X.G.)
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, 105 Jiefang Rd., Jinan 250013, China
| | - Xiaodan Sun
- Intensive Care Unit, The Second Hospital, Cheeloo College of Medicine, Shandong University, 247 Beiyuan Rd., Jinan 250033, China;
| | - Huali Meng
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan 250012, China; (X.S.); (H.M.); (X.G.)
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, 105 Jiefang Rd., Jinan 250013, China
| | - Junduo Wu
- Department of Cardiology, The Second Hospital of Jilin University, 218 Ziqiang St., Changchun 130041, China;
| | - Xin Guo
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan 250012, China; (X.S.); (H.M.); (X.G.)
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, 105 Jiefang Rd., Jinan 250013, China
| | - Lei Du
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan 250012, China; (X.S.); (H.M.); (X.G.)
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, 105 Jiefang Rd., Jinan 250013, China
- Correspondence: (L.D.); (H.W.)
| | - Hao Wu
- Department of Nutrition and Food Hygiene, School of Public Health, Cheeloo College of Medicine, Shandong University, 44 Wenhuaxi Rd., Jinan 250012, China; (X.S.); (H.M.); (X.G.)
- Research Center of Translational Medicine, Jinan Central Hospital, Cheeloo College of Medicine, Shandong University, 105 Jiefang Rd., Jinan 250013, China
- Correspondence: (L.D.); (H.W.)
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Jiménez Callejón MJ, Robles Medina A, Macías Sánchez MD, González Moreno PA, Navarro López E, Esteban Cerdán L, Molina Grima E. Supercritical fluid extraction and pressurized liquid extraction processes applied to eicosapentaenoic acid-rich polar lipid recovery from the microalga Nannochloropsis sp. ALGAL RES 2022. [DOI: 10.1016/j.algal.2021.102586] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ucyol N, Geng JT, Takahashi K, Osako K. Effects of various organic salts on the properties of edible films prepared from North Pacific krill ( Euphausia pacifica) protein. FOOD SCIENCE AND TECHNOLOGY RESEARCH 2022. [DOI: 10.3136/fstr.fstr-d-21-00271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Nail Ucyol
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | - Jie-Ting Geng
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | - Kigen Takahashi
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
| | - Kazufumi Osako
- Department of Food Science and Technology, Tokyo University of Marine Science and Technology
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Shi J, Wang Y, Lei Y, Chen X, Liu Y, Xu YJ. Lipidome reveals the alleviation of krill oil on the impairment of acrylamide. Food Funct 2022; 13:8012-8021. [DOI: 10.1039/d2fo00781a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Krill oil has rich content of polyunsaturated fatty acids and various biological functions. Previous researches have demonstrated that krill oil is helpful to improve the locomotion via antioxidation and regulation...
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Shi J, Wang Y, Jiang F, Liu Y, Xu YJ. The effect of krill oil on longevity and locomotion: a pilot study. Mol Omics 2021; 18:206-213. [PMID: 34935825 DOI: 10.1039/d1mo00373a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Krill oil as a dietary supplement is popular with consumers. Several experimental and clinical trials have suggested that krill oil is beneficial for longevity and locomotion, but the underlying mechanisms for this have remained largely elusive. In this study, we investigated alleviation of impairment of Caenorhabditis elegans by polar compounds from frying oil with the use of krill oil. Observations of life span and locomotion demonstrated that the intake of krill oil increased median survival by 17.86%, head thrashes by 27.79% and body bends by 20.78% for impaired C. elegans. Metabolomic analysis revealed that krill oil could significantly restore the negative alterations caused by polar compounds, including upregulation of serine, tyrosine, palmitic acid and stearic acid, and downregulation of maltose 6'-phosphate, UDP-glucose, glutamic acid, phosphoserine and 25-hydroxyvitamin D3. Additionally, intake of krill oil also changed some metabolites that were irrelevant to impairment by polar compounds, but were beneficial for health for C. elegans. Metabolomics investigations indicated that krill oil ameliorates energy metabolism and alleviates oxidative stress and excitotoxicity caused by polar compounds on C. elegans. The data obtained in this study will facilitate future functional studies of krill oil.
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Affiliation(s)
- Jiachen Shi
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China.
| | - Yanan Wang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China.
| | - Fan Jiang
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China.
| | - Yuanfa Liu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China.
| | - Yong-Jiang Xu
- State Key Laboratory of Food Science and Technology, School of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Laboratory for Cereal Fermentation Technology, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, People's Republic of China.
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Barta DG, Coman V, Vodnar DC. Microalgae as sources of omega-3 polyunsaturated fatty acids: Biotechnological aspects. ALGAL RES 2021. [DOI: 10.1016/j.algal.2021.102410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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16
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Krill Protein Hydrolysate Provides High Absorption Rate for All Essential Amino Acids-A Randomized Control Cross-Over Trial. Nutrients 2021; 13:nu13093187. [PMID: 34579064 PMCID: PMC8465607 DOI: 10.3390/nu13093187] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2021] [Revised: 09/07/2021] [Accepted: 09/10/2021] [Indexed: 02/04/2023] Open
Abstract
BACKGROUND adequate protein intake is essential to humans and, since the global demand for protein-containing foods is increasing, identifying new high-quality protein sources is needed. In this study, we investigated the acute postprandial bioavailability of amino acids (AAs) from a krill protein hydrolysate compared to a soy and a whey protein isolate. METHODS the study was a randomized, placebo-controlled crossover trial including ten healthy young males. On four non-consecutive days, volunteers consumed water or one of three protein-matched supplements: whey protein isolate, soy protein isolate or krill protein hydrolysate. Blood samples were collected prior to and until 180 min after consumption. Serum postprandial AA concentrations were determined using 1H NMR spectroscopy. Hunger and satiety were assessed using visual analogue scales (VAS). RESULTS whey and krill resulted in significantly higher AA concentrations compared to soy between 20-60 min and 20-40 min after consumption, respectively. Area under the curve (AUC) analyses revealed that whey resulted in the highest postprandial serum concentrations of essential AAs (EAAs) and branched chain AAs (BCAAs), followed by krill and soy, respectively. CONCLUSIONS krill protein hydrolysate increases postprandial serum EAA and BCAA concentrations in a superior manner to soy protein isolate and thus might represent a promising future protein source in human nutrition.
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Assessing the Potential of Nutraceuticals as Geroprotectors on Muscle Performance and Cognition in Aging Mice. Antioxidants (Basel) 2021; 10:antiox10091415. [PMID: 34573047 PMCID: PMC8472831 DOI: 10.3390/antiox10091415] [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: 07/07/2021] [Revised: 08/26/2021] [Accepted: 08/31/2021] [Indexed: 11/17/2022] Open
Abstract
Aging and frailty are associated with a decline in muscle force generation, which is a direct consequence of reduced muscle quantity and quality. Among the leading contributors to aging is the generation of reactive oxygen species, the byproducts of terminal oxidation. Their negative effects can be moderated via antioxidant supplementation. Krill oil and astaxanthin (AX) are nutraceuticals with a variety of health promoting, geroprotective, anti-inflammatory, anti-diabetic and anti-fatigue effects. In this work, we examined the functional effects of these two nutraceutical agents supplemented via pelleted chow in aging mice by examining in vivo and in vitro skeletal muscle function, along with aspects of intracellular and mitochondrial calcium homeostasis, as well as cognition and spatial memory. AX diet regimen limited weight gain compared to the control group; however, this phenomenon was not accompanied by muscle tissue mass decline. On the other hand, both AX and krill oil supplementation increased force production without altering calcium homeostasis during excitation-contraction coupling mechanism or mitochondrial calcium uptake processes. We also provide evidence of improved spatial memory and learning ability in aging mice because of krill oil supplementation. Taken together, our data favors the application of antioxidant nutraceuticals as geroprotectors to improve cognition and healthy aging by virtue of improved skeletal muscle force production.
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Krill Oil Treatment Increases Distinct PUFAs and Oxylipins in Adipose Tissue and Liver and Attenuates Obesity-Associated Inflammation via Direct and Indirect Mechanisms. Nutrients 2021; 13:nu13082836. [PMID: 34444996 PMCID: PMC8401900 DOI: 10.3390/nu13082836] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/12/2021] [Accepted: 08/16/2021] [Indexed: 12/31/2022] Open
Abstract
The development of obesity is characterized by the metabolic overload of tissues and subsequent organ inflammation. The health effects of krill oil (KrO) on obesity-associated inflammation remain largely elusive, because long-term treatments with KrO have not been performed to date. Therefore, we examined the putative health effects of 28 weeks of 3% (w/w) KrO supplementation to an obesogenic diet (HFD) with fat derived mostly from lard. The HFD with KrO was compared to an HFD control group to evaluate the effects on fatty acid composition and associated inflammation in epididymal white adipose tissue (eWAT) and the liver during obesity development. KrO treatment increased the concentrations of EPA and DHA and associated oxylipins, including 18-HEPE, RvE2 and 14-HDHA in eWAT and the liver. Simultaneously, KrO decreased arachidonic acid concentrations and arachidonic-acid-derived oxylipins (e.g., HETEs, PGD2, PGE2, PGF2α, TXB2). In eWAT, KrO activated regulators of adipogenesis (e.g., PPARγ, CEBPα, KLF15, STAT5A), induced a shift towards smaller adipocytes and increased the total adipocyte numbers indicative for hyperplasia. KrO reduced crown-like structures in eWAT, and suppressed HFD-stimulated inflammatory pathways including TNFα and CCL2/MCP-1 signaling. The observed eWAT changes were accompanied by reduced plasma leptin and increased plasma adiponectin levels over time, and improved insulin resistance (HOMA-IR). In the liver, KrO suppressed inflammatory signaling pathways, including those controlled by IL-1β and M-CSF, without affecting liver histology. Furthermore, KrO deactivated hepatic REL-A/p65-NF-κB signaling, consistent with increased PPARα protein expression and a trend towards an increase in IkBα. In conclusion, long-term KrO treatment increased several anti-inflammatory PUFAs and oxylipins in WAT and the liver. These changes were accompanied by beneficial effects on general metabolism and inflammatory tone at the tissue level. The stimulation of adipogenesis by KrO allows for safe fat storage and may, together with more direct PPAR-mediated anti-inflammatory mechanisms, attenuate inflammation.
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Advances in Technologies for Highly Active Omega-3 Fatty Acids from Krill Oil: Clinical Applications. Mar Drugs 2021; 19:md19060306. [PMID: 34073184 PMCID: PMC8226823 DOI: 10.3390/md19060306] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2021] [Revised: 05/20/2021] [Accepted: 05/21/2021] [Indexed: 12/15/2022] Open
Abstract
Euphausia superba, commonly known as krill, is a small marine crustacean from the Antarctic Ocean that plays an important role in the marine ecosystem, serving as feed for most fish. It is a known source of highly bioavailable omega-3 polyunsaturated fatty acids (eicosapentaenoic acid and docosahexaenoic acid). In preclinical studies, krill oil showed metabolic, anti-inflammatory, neuroprotective and chemo preventive effects, while in clinical trials it showed significant metabolic, vascular and ergogenic actions. Solvent extraction is the most conventional method to obtain krill oil. However, different solvents must be used to extract all lipids from krill because of the diversity of the polarities of the lipid compounds in the biomass. This review aims to provide an overview of the chemical composition, bioavailability and bioaccessibility of krill oil, as well as the mechanisms of action, classic and non-conventional extraction techniques, health benefits and current applications of this marine crustacean.
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Kim MG, Yang I, Lee HS, Lee JY, Kim K. Lipid-modifying effects of krill oil vs fish oil: a network meta-analysis. Nutr Rev 2021; 78:699-708. [PMID: 32073633 DOI: 10.1093/nutrit/nuz102] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
CONTEXT Krill oil is a good source of n-3 phospholipids and has greater bioavailability than fish oil, which contains n-3 triglycerides. However, it is unclear whether krill oil affects circulating lipid concentrations more beneficially than fish oil. OBJECTIVE A network meta-analysis was conducted to compare the lipid-modifying effects of krill oil and fish oil. DATA SOURCES PubMed and Embase databases were searched. STUDY SELECTION A total of 64 randomized controlled trials that determined the lipid-modifying effects of krill oil or fish oil were selected. DATA EXTRACTION The MetaXL program was used for meta-analysis. A subgroup analysis and a network meta-regression were conducted to investigate the dose-response effect of the n-3 fatty acid content of fish oil and krill oil. RESULTS Krill oil was associated with significantly lower triglyceride levels than control supplements (weighted mean difference [WMD] -23.26 [95%CI, -38.84 to -7.69]). However, the net differences in triglycerides (WMD -4.07 [95%CI, -15.22 to 7.08]), low-density lipoprotein cholesterol (WMD 3.01 [95%CI, -5.49 to 11.51]), high-density lipoprotein cholesterol (WMD 1.37 [95%CI, -3.73 to 6.48]), and total cholesterol (WMD 1.69 [95%CI, -6.62 to 10.01]) were not significantly different between the krill oil and fish oil groups. One gram of n-3 fatty acids contained in fish oil and krill oil lowered median triglycerides by 8.971 mg/dL (95% credible interval [CrI], 2.27 to 14.04) and 9.838 mg/dL (95%CrI, 0.72 to 19.40), respectively. CONCLUSIONS The lipid-modifying effects of krill oil and fish oil do not differ. The reduction in triglycerides depends on the dose of n-3 fatty acids consumed.
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Affiliation(s)
- Myeong Gyu Kim
- Graduate School of Clinical Pharmacy, CHA University, Pocheon, Republic of Korea
| | - Inkyou Yang
- Graduate School of Clinical Pharmacy, CHA University, Pocheon, Republic of Korea
| | - Han Sol Lee
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Jae-Young Lee
- College of Pharmacy, Chungnam National University, Daejeon, Republic of Korea
| | - Kyungim Kim
- College of Pharmacy, Korea University, Seoul, Republic of Korea
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Nagao T, Takahashi S, Kurihara H, Takahashi K. Health Beneficial Food Emulsifier Produced from Fishery Byproducts. J Oleo Sci 2020; 69:1231-1240. [PMID: 33028752 DOI: 10.5650/jos.ess20145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The bioavailability of DHA-bound phospholipids, especially the DHA-bound lysophospholipid (DHA-LPL) could be considered the most effective DHA chemical forms for DHA accretion in the brain. Such a DHA-LPL should also have very high emulsifying stability performance based on its analogy with conventional soy LPL. Therefore, in this study, we describe two fishery byproducts, rich in DHA-bound phospholipids, to derive DHA-LPL via sn-1 positional specific lipase partial hydrolysis of the phospholipids. Through this reaction, the DHA composition increased to 43.8 % from 29.1 % in the salmon head phospholipid-derived DHA-LPL, and to 84.0 % from 47.4 % in the squid meal phospholipid-derived DHA-LPL. In fact, these obtained DHA-LPLs exhibited far higher emulsifying stability than the conventional food emulsifiers in the market. For example, the prepared high-purity squid meal phospholipid-derived LPL sustained an emulsion form for a week even under 80°C. Thus, food emulsifiers produced from fishery byproducts are considered to exhibit very high values of both in a sense of outstandingly high health benefits and sustaining emulsions even under very high temperatures.
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Affiliation(s)
- Toshihiro Nagao
- Osaka Research Institute of Industrial Science and Technology
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22
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Yu F, Wang H, Jiang X, Lu T, Xue C. A new multistage counter current extraction method of removing fluoride from defatted Antarctic krill powder. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Fanqianhui Yu
- College of Food Science and Engineering Ocean University of China Qingdao P.R. China
| | - Huiling Wang
- College of Food Science and Engineering Ocean University of China Qingdao P.R. China
| | - Xiaoming Jiang
- College of Food Science and Engineering Ocean University of China Qingdao P.R. China
| | - Tao Lu
- Department of Mechanical and Electronic Engineering Shandong University of Science and Technology Qingdao P.R. China
| | - Changhu Xue
- College of Food Science and Engineering Ocean University of China Qingdao P.R. China
- Laboratory of Marine Drugs & Biological Products Qingdao National Laboratory for Marine Science and Technology Qingdao China
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Takeuchi E, Yamada D, Suzuki S, Saitoh A, Itoh M, Hayashi T, Yamada M, Wada K, Sekiguchi M. Participation of the nucleus accumbens dopaminergic system in the antidepressant-like actions of a diet rich in omega-3 polyunsaturated fatty acids. PLoS One 2020; 15:e0230647. [PMID: 32210469 PMCID: PMC7094879 DOI: 10.1371/journal.pone.0230647] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Accepted: 03/04/2020] [Indexed: 01/04/2023] Open
Abstract
The beneficial effects of omega (ω)-3 polyunsaturated fatty acid (PUFA) supplementation on major depressive disorder have been actively studied, but the underlying mechanism remains unknown. The present study examined the involvement of the nucleus accumbens (NAc) dopaminergic systems in behavioral changes in mice fed a diet high in ω-3 PUFAs. Mice fed a diet containing about double the amount of ω-3 PUFAs (krill oil (KO) diet) exerted shorter immobility times in the forced swim test (FST) than mice fed a control diet, containing only α-linolenic acid (ALA) as ω-3 PUFAs. The shorter immobility times were observed in both male and female mice. A dopamine metabolite, 3,4-dihydroxyphenylacetic acid, increased in the NAc in male mice fed the KO diet when compared with those fed the control diet. In addition, dopamine, 3-methoxytyramine, and homovanillic acid increased in the NAc in female mice fed the KO diet. Notably, the effects of the KO diet on the immobility time in the FST were abolished by microinjection of sulpiride, an antagonist of D2-like receptors, into the NAc. A similar microinjection of an antagonist selective for D1-like receptors, SKF83566, also abolished the reduction in immobility in the FST. Moreover, we found that tyrosine hydroxylase-positive cells increased in the ventral tegmental area (VTA) in mice fed the KO diet. These results suggest that modulation of the VTA-NAc dopaminergic pathway is one of the mechanisms by which a KO diet rich in ω-3 PUFAs reduces the immobility behavior in the mouse FST.
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Affiliation(s)
- Eri Takeuchi
- Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Daisuke Yamada
- Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Satoshi Suzuki
- Department of Neuropsychopharmacology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Akiyoshi Saitoh
- Department of Neuropsychopharmacology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Masayuki Itoh
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Takashi Hayashi
- Department of Biochemistry and Cellular Biology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Mitsuhiko Yamada
- Department of Neuropsychopharmacology, National Institute of Mental Health, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Keiji Wada
- Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
- AMED-CREST, Japan Agency for Medical Research and Development, Tokyo, Japan
| | - Masayuki Sekiguchi
- Department of Degenerative Neurological Diseases, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo, Japan
- * E-mail: ,
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Andraka JM, Sharma N, Marchalant Y. Can krill oil be of use for counteracting neuroinflammatory processes induced by high fat diet and aging? Neurosci Res 2019; 157:1-14. [PMID: 31445058 DOI: 10.1016/j.neures.2019.08.001] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2019] [Revised: 08/05/2019] [Accepted: 08/13/2019] [Indexed: 02/08/2023]
Abstract
Most neurodegenerative diseases, such as Alzheimer's and Parkinson's disease, demonstrate preceding or on-going inflammatory processes. Therefore, discovering effective means of counteracting detrimental inflammatory mediators in the brain could help alter aging-related disease onset and progression. Fish oil and marine-derived omega-3, long-chain polyunsaturated fatty acids (LC n-3) have shown promising anti-inflammatory effects both systemically and centrally. More specifically, krill oil (KO), extracted from small Antarctic crustaceans, is an alternative type of LC n-3 with reported health benefits including improvement of spatial memory and learning, memory loss, systemic inflammation and depression symptoms. Similar to the more widely studied fish oil, KO contains the long chain fatty acids eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) which are essential for basic brain functions. Moreover, the phospholipid bound nature of fatty acids found in KO improves bioavailability and efficiency of absorption, thus supporting the belief that KO may offer a superior method of dietary n-3 delivery. Finally, KO contains astaxanthin, an antioxidant capable of reducing potentially excessive oxidative stress and inflammation within the brain. This review will discuss the potential benefits of KO over other marine-based LC n-3 on brain inflammation and cognitive function in the context of high fat diets and aging.
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Affiliation(s)
- John M Andraka
- Department of Physical Therapy, Central Michigan University, MI, USA; Neuroscience Program, Central Michigan University, MI, USA
| | - Naveen Sharma
- Neuroscience Program, Central Michigan University, MI, USA; School of Health Sciences, Central Michigan University, MI, USA
| | - Yannick Marchalant
- Neuroscience Program, Central Michigan University, MI, USA; Psychology Department, Central Michigan University, MI, USA.
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25
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Protective effects of krill oil on ischemic reperfusion injury in experimental model of priapism. JOURNAL OF SURGERY AND MEDICINE 2019. [DOI: 10.28982/josam.560609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Landymore C, Durance TD, Singh A, Singh AP, Kitts DD. Comparing different dehydration methods on protein quality of krill (Euphausia Pacifica). Food Res Int 2019; 119:276-282. [PMID: 30884657 DOI: 10.1016/j.foodres.2018.12.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Revised: 11/28/2018] [Accepted: 12/01/2018] [Indexed: 11/19/2022]
Abstract
Krill, (Euphausia pacifica) contains a high protein content (>15.4%) and an estimated biological value higher than many animal protein sources. Thus it is considered to be an important source of high-quality protein. However, commercial processing of krill is limited due to problems such as presence of hydrolytic enzymes (proteases, carboxypeptidases, nucleases, and phospholipases), and its small size. These enzymes are released immediately upon krill harvesting, resulting in autolysis, and rapid spoilage. Herein we compared different dehydration methods of krill on its protein quality. We processed Krill using air-drying (AD), vacuum microwave drying at low temperature (VD) and freeze-drying (FD), and also treated krill with chitinase prior to drying (HZ). AD-processed krill displayed the lowest in-vitro digestibility (P < 0.05) along with low apparent in-vivo protein digestibility compared to VD and FD, respectively. This result corresponded to lower available lysine in AD dried krill (5.6 mg/100 mg protein) compared to VD (8.5 mg Lysine /100 mg protein), FD (8.5 mg/100 mg protein), and HZ (8.9 mg/100 mg protein). Using a two-week metabolic study with rats, we found that apparent urinary nitrogen losses and net protein utilization were low in krill, compared to a casein control. The addition of chitinase to krill prior to drying significantly increased protein quality measures. A high fluoride concentration was also detected in dehydrated krill, irrespective of the drying method. It is expected that the fluoride content of krill is an additional factor that will affect protein utilization.
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Affiliation(s)
- Corrie Landymore
- Food, Nutrition, and Health, Faculty of Land & Food Systems, 2205 East Mall, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Timothy D Durance
- Food, Nutrition, and Health, Faculty of Land & Food Systems, 2205 East Mall, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Anika Singh
- Food, Nutrition, and Health, Faculty of Land & Food Systems, 2205 East Mall, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - Anubhav Pratap Singh
- Food, Nutrition, and Health, Faculty of Land & Food Systems, 2205 East Mall, University of British Columbia, Vancouver, BC V6T 1Z4, Canada
| | - David D Kitts
- Food, Nutrition, and Health, Faculty of Land & Food Systems, 2205 East Mall, University of British Columbia, Vancouver, BC V6T 1Z4, Canada.
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27
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Correlation between Fatty Acid Profile and Anti-Inflammatory Activity in Common Australian Seafood by-Products. Mar Drugs 2019; 17:md17030155. [PMID: 30845724 PMCID: PMC6471488 DOI: 10.3390/md17030155] [Citation(s) in RCA: 43] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2019] [Revised: 02/22/2019] [Accepted: 03/02/2019] [Indexed: 12/26/2022] Open
Abstract
Marine organisms are a rich source of biologically active lipids with anti-inflammatory activities. These lipids may be enriched in visceral organs that are waste products from common seafood. Gas chromatography-mass spectrometry and fatty acid methyl ester (FAME) analyses were performed to compare the fatty acid compositions of lipid extracts from some common seafood organisms, including octopus (Octopus tetricus), squid (Sepioteuthis australis), Australian sardine (Sardinops sagax), salmon (Salmo salar) and school prawns (Penaeus plebejus). The lipid extracts were tested for anti-inflammatory activity by assessing their inhibition of nitric oxide (NO) and tumor necrosis factor alpha (TNFα) production in lipopolysaccharide (LPS)-stimulated RAW 264.7 mouse cells. The lipid extract from both the flesh and waste tissue all contained high amounts of polyunsaturated fatty acids (PUFAs) and significantly inhibited NO and TNFα production. Lipid extracts from the cephalopod mollusks S. australis and O. tetricus demonstrated the highest total PUFA content, the highest level of omega 3 (ω-3) PUFAs, and the highest anti-inflammatory activity. However, multivariate analysis indicates the complex mixture of saturated, monounsaturated, and polyunsaturated fatty acids may all influence the anti-inflammatory activity of marine lipid extracts. This study confirms that discarded parts of commonly consumed seafood species provide promising sources for the development of new potential anti-inflammatory nutraceuticals.
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Xie D, Gong M, Wei W, Jin J, Wang X, Wang X, Jin Q. Antarctic Krill (Euphausia superba) Oil: A Comprehensive Review of Chemical Composition, Extraction Technologies, Health Benefits, and Current Applications. Compr Rev Food Sci Food Saf 2019; 18:514-534. [PMID: 33336946 DOI: 10.1111/1541-4337.12427] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 12/14/2022]
Abstract
Antarctic krill (Euphausia superba) oil has been receiving increasing attention due to its nutritional and functional potentials. However, its application as a novel food ingredient has not yet been fully explored. This review summarizes the chemical composition, extraction technologies, potential health benefits, and current applications of krill oil, with the aim of providing suggestions for its exploitation. Krill oil is a unique lipid consisting of diverse lipid classes and is characterized by a high concentration (39.29% to 80.69%) of phospholipids (PLs) associated with eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). It also contains considerable amounts of bioactive minor components such as astaxanthin, sterols, tocopherols, vitamin A, flavonoids, and minerals. The current technologies used in krill oil production are solvent extraction, nonsolvent extraction, super/subcritical fluid extraction, and enzyme-assisted pretreatment extraction, which all greatly influence the yield and quality of the end-product. In addition, krill oil has been documented to have various health benefits, including anti-inflammatory effects, cardiovascular disease (CVD) prevention, women's health, neuroprotection, and anticancer activities. Although krill oil products used for dietary supplements have been commercially available, few studies have attempted to explore the underlying molecular mechanisms to elucidate how exactly the krill oil exerts different biological activities. Further studies should focus on this to improve the development of krill oil products for human consumption.
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Affiliation(s)
- Dan Xie
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China.,the Zhonghai Ocean (Wuxi) Marine Equipment Engineering Co. Ltd., Jiangnan Univ. Natl. Univ. Science Park, 100 Jinxi Road, Wuxi, Jiangsu, 214125, P. R. China
| | - Mengyue Gong
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China
| | - Wei Wei
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China
| | - Jun Jin
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China
| | - Xiaosan Wang
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China
| | - Xingguo Wang
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China
| | - Qingzhe Jin
- the Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, Natl. Engineering Research Center for Functional Food, School of Food Science and Technology, Jiangnan Univ., 1800 Lihu Avenue, Wuxi, Jiangsu, 214122, P. R. China
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Krill oil protects PC12 cells against methamphetamine-induced neurotoxicity by inhibiting apoptotic response and oxidative stress. Nutr Res 2018; 58:84-94. [DOI: 10.1016/j.nutres.2018.07.006] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Revised: 07/04/2018] [Accepted: 07/09/2018] [Indexed: 01/05/2023]
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Shi L, Beamer SK, Yang H, Jaczynski J. Micro-emulsification/encapsulation of krill oil by complex coacervation with krill protein isolated using isoelectric solubilization/precipitation. Food Chem 2018; 244:284-291. [DOI: 10.1016/j.foodchem.2017.10.050] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Revised: 09/28/2017] [Accepted: 10/09/2017] [Indexed: 10/24/2022]
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Alvarez-Ricartes N, Oliveros-Matus P, Mendoza C, Perez-Urrutia N, Echeverria F, Iarkov A, Barreto GE, Echeverria V. Intranasal Cotinine Plus Krill Oil Facilitates Fear Extinction, Decreases Depressive-Like Behavior, and Increases Hippocampal Calcineurin A Levels in Mice. Mol Neurobiol 2018; 55:7949-7960. [PMID: 29488138 DOI: 10.1007/s12035-018-0916-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Accepted: 01/18/2018] [Indexed: 02/07/2023]
Abstract
Failure in fear extinction is one of the more troublesome characteristics of posttraumatic stress disorder (PTSD). Cotinine facilitates fear memory extinction and reduces depressive-like behavior when administered 24 h after fear conditioning in mice. In this study, it was investigated the behavioral and molecular effects of cotinine, and other antidepressant preparations infused intranasally. Intranasal (IN) cotinine, IN krill oil, IN cotinine plus krill oil, and oral sertraline were evaluated on depressive-like behavior and fear retention and extinction after fear conditioning in C57BL/6 mice. Since calcineurin A has been involved in facilitating fear extinction in rodents, we also investigated changes of calcineurin in the hippocampus, a region key on contextual fear extinction. Short-term treatment with cotinine formulations was superior to krill oil and oral sertraline in reducing depressive-like behavior and fear consolidation and enhancing contextual fear memory extinction in mice. IN krill oil slowed the extinction of fear. IN cotinine preparations increased the levels of calcineurin A in the hippocampus of conditioned mice. In the light of the results, the future investigation of the use of IN cotinine preparations for the extinction of contextual fear memory and treatment of treatment-resistant depression (TRD) in PTSD is discussed.
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Affiliation(s)
- Nathalie Alvarez-Ricartes
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Patricia Oliveros-Matus
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Cristhian Mendoza
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Nelson Perez-Urrutia
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Florencia Echeverria
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile
| | - Alexandre Iarkov
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile.
| | - George E Barreto
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá D.C., Colombia.,Instituto de Ciencias Biomédicas, Universidad Autónoma de Chile, Santiago, Chile
| | - Valentina Echeverria
- Facultad de Ciencias de la Salud, Universidad San Sebastián, Lientur 1457, 4030000, Concepción, Chile. .,Bay Pines VA Healthcare System, Research and Development, Bay Pines VAHCS, 10,000 Bay Pines Blvd., Bldg. 23, Rm123, Bay Pines, FL, 33744, USA.
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Parolini C, Bjorndal B, Busnelli M, Manzini S, Ganzetti GS, Dellera F, Ramsvik M, Bruheim I, Berge RK, Chiesa G. Effect of Dietary Components from Antarctic Krill on Atherosclerosis in apoE-Deficient Mice. Mol Nutr Food Res 2017; 61. [PMID: 28812326 DOI: 10.1002/mnfr.201700098] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2017] [Revised: 07/25/2017] [Indexed: 12/22/2022]
Abstract
SCOPE Antarctic krill is a great source of n-3 fatty acids and high-quality proteins. Aim of the study was to evaluate the effect of Antarctic krill components on plasma lipids and atherosclerosis development. METHODS AND RESULTS Sixty apoEKO mice were divided into four groups and fed Western diet (CONTROL) or Western-like diets, differing for protein or fat content. Specifically, casein or fat in CONTROL was partially replaced by krill proteins (PRO), krill oil (KRILL OIL), or both (KRILL OIL+PRO). In KRILL OIL+PRO and KRILL OIL, cholesterol levels were significantly lower than in CONTROL group. Atherosclerosis in aorta of PRO, KRILL OIL and KRILL OIL+PRO was lower than in CONTROL, whereas, at the aortic sinus, atherosclerosis reduction was only observed in KRILL OIL. Liver steatosis, commonly present in CONTROL and PRO animals, was sporadic in KRILL OIL+PRO and KRILL OIL mice. Krill oil containing diets affected the expression of genes involved in cholesterol metabolism, mainly HMG-CoA reductase. No reduced systemic inflammation was found in all groups. CONCLUSION Krill oil containing diets were able to reduce cholesterol levels, inhibit plaque development and prevent liver damage. Krill proteins also reduced atherosclerosis development through mechanisms not involving lipid metabolism.
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Affiliation(s)
- Cinzia Parolini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Bodil Bjorndal
- Department of Clinical Science, University of Bergen, N-5020, Bergen, Norway
| | - Marco Busnelli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Stefano Manzini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Giulia S Ganzetti
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Federica Dellera
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
| | - Marie Ramsvik
- Department of Clinical Science, University of Bergen, N-5020, Bergen, Norway.,Rimfrost AS, N-6099, Fosnavaag, Norway
| | | | - Rolf Kristian Berge
- Department of Clinical Science, University of Bergen, N-5020, Bergen, Norway
| | - Giulia Chiesa
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milano, Italy
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Ursoniu S, Sahebkar A, Serban MC, Antal D, Mikhailidis DP, Cicero A, Athyros V, Rizzo M, Rysz J, Banach M. Lipid-modifying effects of krill oil in humans: systematic review and meta-analysis of randomized controlled trials. Nutr Rev 2017; 75:361-373. [PMID: 28371906 DOI: 10.1093/nutrit/nuw063] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Context Some experimental and clinical trials have shown that krill oil, extracted from small red crustaceans, might be an effective lipid-modifying agent, but the evidence is not conclusive. Objective The effect of krill oil supplements on plasma lipid concentrations was assessed through a systematic review of the literature and a meta-analysis of available randomized controlled trials. Data sources PubMed and Scopus were searched up to March 25, 2016, to identify RCTs investigating the effect of krill oil supplements on plasma lipids. Study selection Randomized controlled trials that investigated the impact of at least 2 weeks of supplementation with krill oil on plasma/serum concentrations of at least one of the main lipid parameters (ie, total cholesterol, low-density lipoprotein cholesterol, high-density lipoprotein cholesterol, or triglycerides) and that reported sufficient information on plasma/serum lipid levels at baseline and at the end of study in both krill oil and control groups were eligible for inclusion. Data extraction Two reviewers independently extracted the following data: first author's name, year of publication, study location, study design, number of participants in the krill oil and control groups, dosage of krill oil, type of control allocation, treatment duration, demographic characteristics of study participants, and baseline and follow-up plasma concentrations of lipids. Effect size was expressed as the weighted mean difference (WMD) and 95% confidence interval (95%CI). Results Meta-analysis of data from 7 eligible trials (14 treatment arms) with 662 participants showed a significant reduction in plasma concentrations of low-density lipoprotein cholesterol (WMD, -15.52 mg/dL; 95%CI, -28.43 to -2.61; P = 0.018) and triglycerides (WMD, -14.03 mg/dL; 95%CI, -21.38 to -6.67; P < 0.001) following supplementation with krill oil. A significant elevation in plasma concentrations of high-density lipoprotein cholesterol was also observed (WMD, 6.65 mg/dL; 95%CI, 2.30 to 10.99; P = 0.003), while a reduction in plasma concentrations of total cholesterol did not reach statistical significance (WMD, -7.50 mg/dL; 95%CI, -17.94 to 2.93; P = 0.159). Conclusion Krill oil supplementation can reduce low-density lipoprotein cholesterol and triglycerides. Additional clinical studies with more participants are needed to assess the impact of krill oil supplementation on other indices of cardiometabolic risk and on the risk of cardiovascular outcomes.
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Affiliation(s)
- Sorin Ursoniu
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Amirhossein Sahebkar
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Maria-Corina Serban
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Diana Antal
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Dimitri P Mikhailidis
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Arrigo Cicero
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Vasilios Athyros
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Manfredi Rizzo
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Jacek Rysz
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
| | - Maciej Banach
- S. Ursoniu is with the Department of Functional Sciences, Discipline of Public Health, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. A. Sahebkar is with the Biotechnology Research Center, Mashhad University of Medical Sciences, Mashhad, Iran. M.-C. Serban is with the Department of Functional Sciences, Discipline of Pathophysiology, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D. Antal is with the Discipline of Pharmaceutical Botany, Faculty of Pharmacy, Victor Babes University of Medicine and Pharmacy, Timisoara, Romania. D.P. Mikhailidis is with the Department of Clinical Biochemistry, Royal Free Campus, University College London Medical School, University College London, London, United Kingdom. A. Cicero is with the Medical & Surgical Sciences Department, Alma Mater Studiorum - University of Bologna, Bologna, Italy. V. Athyros is with the Second Propedeutic Department of Internal Medicine, Medical School, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki, Greece. M. Rizzo is with the Biomedical Department of Internal Medicine and Medical Specialties, University of Palermo, Palermo, Italy. J. Rysz and M. Banach are with the Department of Hypertension, Medical University of Lodz, Lodz, Poland
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Fan Y, Tian L, Xue Y, Li Z, Hou H, Xue C. Characterization of protease and effects of temperature and salinity on the biochemical changes during fermentation of Antarctic krill. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2017; 97:3546-3551. [PMID: 28078684 DOI: 10.1002/jsfa.8209] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 12/30/2016] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
BACKGROUND Despite their abundance, Antarctic krill are underutilized because of numerous difficulties in their commercial processing. Ideally, fermentation technology can be applied to transform them into a popular condiment. In addition to the exploration of protease properties, the present study aimed to evaluate proteinase activity, pH, amino nitrogen, and histamine formation during fermentation at different temperatures and salt treatments. RESULTS Even though the activity of Antarctic krill protease reached a maximum at 40 °C and pH 7, it was stable at 30 °C and pH 7-9. Among the metal ions tested, Ca2+ , Mg2+ and K+ increased protease activity, in contrast to Zn2+ and Cu2+ . Within each treatment, the highest protease activity and amino nitrogen content, as well as the lowest histamine level, were observed on day 12 of fermentation. Treatment at 35 °C with 180 g kg-1 salt led to the production of maximum amino nitrogen (0.0352 g kg-1 ) and low histamine (≤0.0497 g kg-1 ). CONCLUSION Krill paste fermented for 12 days at 35 °C with 180 g kg-1 salt exhibited the optimal quality and properties, suggesting an efficient method for fermentation of Antarctic krill and other aquatic resources. © 2017 Society of Chemical Industry.
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Affiliation(s)
- Yan Fan
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
| | - Lili Tian
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
| | - Yong Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
| | - Zhaojie Li
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
| | - Hu Hou
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
| | - Changhu Xue
- College of Food Science and Engineering, Ocean University of China, Qingdao, PR China
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Yang G, Lee J, Lee S, Kwak D, Choe W, Kang I, Kim SS, Ha J. Krill Oil Supplementation Improves Dyslipidemia and Lowers Body Weight in Mice Fed a High-Fat Diet Through Activation of AMP-Activated Protein Kinase. J Med Food 2016; 19:1120-1129. [DOI: 10.1089/jmf.2016.3720] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Affiliation(s)
- Goowon Yang
- Department of Biochemistry and Molecular Biology, Graduate School, Kyung Hee University, Seoul, Korea
| | - Jihyun Lee
- Department of Medicine, Graduate School, Kyung Hee University, Seoul, Korea
| | | | | | - Wonchae Choe
- Department of Biochemistry and Molecular Biology, Graduate School, Kyung Hee University, Seoul, Korea
| | - Insug Kang
- Department of Biochemistry and Molecular Biology, Graduate School, Kyung Hee University, Seoul, Korea
| | - Sung Soo Kim
- Department of Biochemistry and Molecular Biology, Graduate School, Kyung Hee University, Seoul, Korea
| | - Joohun Ha
- Department of Biochemistry and Molecular Biology, Graduate School, Kyung Hee University, Seoul, Korea
- Medical Research Center and Biomedical Science Institute, Kyung Hee University, Seoul, Korea
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Krill oil reduces plasma triacylglycerol level and improves related lipoprotein particle concentration, fatty acid composition and redox status in healthy young adults - a pilot study. Lipids Health Dis 2015; 14:163. [PMID: 26666303 PMCID: PMC4678523 DOI: 10.1186/s12944-015-0162-7] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2015] [Accepted: 11/28/2015] [Indexed: 02/02/2023] Open
Abstract
Background Lipid abnormalities, enhanced inflammation and oxidative stress seem to represent a vicious circle in atherogenesis, and therapeutic options directed against these processes seems like a reasonable approach in the management of atherosclerotic disorders. Krill oil (RIMFROST Sublime®) is a phospholipid-rich oil with eicosapentaenoic acid (EPA): docosahexaenoic acid (DHA) ratio of 1.8:1. In this pilot study we determined if krill oil could favourable affect plasma lipid parameters and parameters involved in the initiation and progression of atherosclerosis. Methods The study was conducted as a 28 days intervention study examining effect-parameters of dietary supplementation with krill oil (832.5 mg EPA and DHA per day). 17 healthy volunteers in the age group 18–36 (mean age 23 ± 4 years) participated. Plasma lipids, lipoprotein particle sizes, fatty acid composition in plasma and red blood cells (RBCs), plasma cytokines, antioxidant capacity, acylcarntines, carnitine, choline, betaine, and trimethylamine-N-oxide (TMAO) were measured before and after supplementation. Results Plasma triacylglycerol (TAG) and large very-low density lipoprotein (VLDL) & chylomicron particle concentrations decreased after 28 days of krill oil intake. A significant reduction in the TAG/HDL cholesterol resulted. Krill oil supplementation decreased n-6/n-3 polyunsaturated fatty acids (PUFA) ratio both in plasma and RBCs. This was due to increased EPA, DHA and docosapentaenoic acid (DPA) and reduced amount of arachidonic acid (AA). The increase of n-3 fatty acids and wt % of EPA and DHA in RBC was of smaller magnitude than found in plasma. Krill oil intake increased the antioxidant capacity, double bond index (DBI) and the fatty acid anti-inflammatory index. The plasma atherogenicity index remained constant whereas the thrombogenicity index decreased. Plasma choline, betaine and the carnitine precursor, γ-butyrobetaine were increased after krill oil supplementation whereas the TMAO and carnitine concentrations remained unchanged. Conclusion Krill oil consumption is considered health beneficial as it decreases cardiovascular disease risk parameters through effects on plasma TAGs, lipoprotein particles, fatty acid profile, redox status and possible inflammation. Noteworthy, no adverse effects on plasma levels of TMAO and carnitine were found.
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