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Cheng T, Zhang T, Zhang P, He X, Sadiq FA, Li J, Sang Y, Gao J. The complex world of kefir: Structural insights and symbiotic relationships. Compr Rev Food Sci Food Saf 2024; 23:e13364. [PMID: 38847746 DOI: 10.1111/1541-4337.13364] [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: 12/30/2023] [Revised: 04/04/2024] [Accepted: 05/21/2024] [Indexed: 06/13/2024]
Abstract
Kefir milk, known for its high nutritional value and health benefits, is traditionally produced by fermenting milk with kefir grains. These grains are a complex symbiotic community of lactic acid bacteria, acetic acid bacteria, yeasts, and other microorganisms. However, the intricate coexistence mechanisms within these microbial colonies remain a mystery, posing challenges in predicting their biological and functional traits. This uncertainty often leads to variability in kefir milk's quality and safety. This review delves into the unique structural characteristics of kefir grains, particularly their distinctive hollow structure. We propose hypotheses on their formation, which appears to be influenced by the aggregation behaviors of the community members and their alliances. In kefir milk, a systematic colonization process is driven by metabolite release, orchestrating the spatiotemporal rearrangement of ecological niches. We place special emphasis on the dynamic spatiotemporal changes within the kefir microbial community. Spatially, we observe variations in species morphology and distribution across different locations within the grain structure. Temporally, the review highlights the succession patterns of the microbial community, shedding light on their evolving interactions.Furthermore, we explore the ecological mechanisms underpinning the formation of a stable community composition. The interplay of cooperative and competitive species within these microorganisms ensures a dynamic balance, contributing to the community's richness and stability. In kefir community, competitive species foster diversity and stability, whereas cooperative species bolster mutualistic symbiosis. By deepening our understanding of the behaviors of these complex microbial communities, we can pave the way for future advancements in the development and diversification of starter cultures for food fermentation processes.
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Affiliation(s)
- Tiantian Cheng
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Tuo Zhang
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Pengmin Zhang
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Xiaowei He
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Faizan Ahmed Sadiq
- Advanced Therapies Group, School of Dentistry, Cardiff University, Cardiff, UK
| | - Jiale Li
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Yaxin Sang
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
| | - Jie Gao
- Department of Food Science and Technology, Hebei Agricultural University, Baoding, Hebei, China
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Cui Y, Jing C, Yue Y, Ning M, Chen H, Yuan Y, Yue T. Kefir Ameliorates Alcohol-Induced Liver Injury Through Modulating Gut Microbiota and Fecal Bile Acid Profile in Mice. Mol Nutr Food Res 2024; 68:e2300301. [PMID: 37933689 DOI: 10.1002/mnfr.202300301] [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: 05/09/2023] [Revised: 08/31/2023] [Indexed: 11/08/2023]
Abstract
SCOPE Alcoholic liver disease (ALD) is the leading cause of liver-related deaths worldwide. Kefir has been studied for its properties of anti-obesity, rebuilding intestinal homeostasis, and alleviating non-alcoholic fatty liver disease. However, the possible role of kefir in the prevention or treatment of ALD has not been carefully considered. Here, it evaluated the protective effects of kefir supplementation on alcohol-induced liver injury. METHODS AND RESULTS C57BL/6J mice are fed to Lieber-DeCarli liquid diet containing alcohol to build ALD mouse model, followed by oral administration with kefir. Results indicate that kefir treatment improves liver pathological changes, decreases the expression levels of alanine aminotransferase (ALT) and aspartate aminotransferase (AST) and inflammatory markers, and increases antioxidant levels. Kefir supplementation also restores the intestinal barrier and altered microbial composition, indicates as increases of Blautia, Bacteroides, and Parasutterella and decreases in the Firmicutes/Bacteroidetes (F/B) ratio and populations of Psychrobacter, Bacillus, and Monoglobus. Moreover, kefir supplementation decreases the levels of total bile acids (BAs) and primary BAs and increases the secondary/primary BA ratio. Gut microbes play a key role in the conversion of primary to secondary fecal BAs. CONCLUSION Kefir can ameliorate ALD through regulating the composition of the gut microbiota.
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Affiliation(s)
- Yuanyuan Cui
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Chun Jing
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Yuan Yue
- College of Food Science and Technology, Northwest University, Xi'an, 710069, China
| | - Mengge Ning
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Hong Chen
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Yahong Yuan
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
| | - Tianli Yue
- College of Food Science and Engineering, Northwest A&F University, Yangling, 712100, China
- Laboratory of Quality & Safety Risk Assessment for Agro-products (Yangling), Ministry of Agriculture, Yangling, 712100, China
- Xi'an Gaoxin No. 1 High School, Xi'an, 710119, China
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3
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Albuquerque Pereira MDF, Morais de Ávila LG, Ávila Alpino GDC, Dos Santos Cruz BC, Almeida LF, Macedo Simões J, Ladeira Bernardes A, Xisto Campos I, de Oliveira Barros Ribon A, de Oliveira Mendes TA, Gouveia Peluzio MDC. Milk kefir alters fecal microbiota impacting gut and brain health in mice. Appl Microbiol Biotechnol 2023:10.1007/s00253-023-12630-0. [PMID: 37389589 DOI: 10.1007/s00253-023-12630-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 05/31/2023] [Accepted: 06/07/2023] [Indexed: 07/01/2023]
Abstract
Kefir is a fermented beverage made of a symbiotic microbial community that stands out for health benefits. Although its microbial profile is still little explored, its effects on modulation of gut microbiota and production of short-chain fatty acids (SCFAs) seems to act by improving brain health. This work aimed to analyze the microbiota profile of milk kefir and its effect on metabolism, oxidative stress, and in the microbiota-gut-brain axis in a murine model. The experimental design was carried out using C57BL-6 mice (n = 20) subdivided into groups that received 0.1 mL water or 0.1 mL (10% w/v) kefir. The kefir proceeded to maturation for 48 h, and then it was orally administered, via gavage, to the animals for 4 weeks. Physicochemical, microbiological, antioxidant analyzes, and microbial profiling of milk kefir beverage were performed as well as growth parameters, food intake, serum markers, oxidative stress, antioxidant enzymes, SCFAs, and metabarcoding were analyzed in the mice. Milk kefir had 76.64 ± 0.42% of free radical scavenging and the microbiota composed primarily by the genus Comamonas. Moreover, kefir increased catalase and superoxide dismutase (colon), and SCFAs in feces (butyrate), and in the brain (butyrate and propionate). Kefir reduced triglycerides, uric acid, and affected the microbiome of animals increasing fecal butyrate-producing bacteria (Lachnospiraceae and Lachnoclostridium). Our results on the brain and fecal SCFAs and the antioxidant effect found were associated with the change in the gut microbiota caused by kefir, which indicates that kefir positively influences the gut-microbiota-brain axis and contributes to the preservation of gut and brain health. KEY POINTS: • Milk kefir modulates fecal microbiota and SCFA production in brain and colon. • Kefir treatment increases the abundance of SCFA-producing bacteria. • Milk kefir increases antioxidant enzymes and influences the metabolism of mice.
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Affiliation(s)
| | - Larissa Gabriela Morais de Ávila
- Interunit Postgraduate Program in Bioinformatics, Universidade Federal de Minas Gerais, Av. Pres. Antônio Carlos, 6627 - Pampulha, Belo Horizonte, Minas Gerais, 31270-901, Brazil
| | - Gabriela de Cássia Ávila Alpino
- Department of Nutrition and Health, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Bruna Cristina Dos Santos Cruz
- Biological Sciences and Health Institute, Universidade Federal de Viçosa Campus Rio Paranaíba, Rodovia BR230 KM 7, Rio Paranaíba, Minas Gerais, Brazil
| | - Lucas Filipe Almeida
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N., Viçosa, Minas Gerais, 36570-900, Brazil
| | - Jordana Macedo Simões
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N., Viçosa, Minas Gerais, 36570-900, Brazil
| | - Andressa Ladeira Bernardes
- Department of Nutrition and Health, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Iasmim Xisto Campos
- Department of Nutrition and Health, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N, Viçosa, Minas Gerais, 36570-900, Brazil
| | - Andréa de Oliveira Barros Ribon
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N., Viçosa, Minas Gerais, 36570-900, Brazil
| | - Tiago Antônio de Oliveira Mendes
- Department of Biochemistry and Molecular Biology, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N., Viçosa, Minas Gerais, 36570-900, Brazil
| | - Maria do Carmo Gouveia Peluzio
- Department of Nutrition and Health, Universidade Federal de Viçosa, Av. P.H. Rolfs, S/N, Viçosa, Minas Gerais, 36570-900, Brazil.
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Chen C, Chen W, Ding H, Zhang G, Xie K, Zhang T. Integrated Metabolomic and Transcriptomic Analysis Reveals Potential Gut-Liver Crosstalks in the Lipogenesis of Chicken. Animals (Basel) 2023; 13:ani13101659. [PMID: 37238090 DOI: 10.3390/ani13101659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2023] [Revised: 05/12/2023] [Accepted: 05/15/2023] [Indexed: 05/28/2023] Open
Abstract
Growing evidence has shown the involvement of the gut-liver axis in lipogenesis and fat deposition. However, how the gut crosstalk with the liver and the potential role of gut-liver crosstalk in the lipogenesis of chicken remains largely unknown. In this study, to identify gut-liver crosstalks involved in regulating the lipogenesis of chicken, we first established an HFD-induced obese chicken model. Using this model, we detected the changes in the metabolic profiles of the cecum and liver in response to the HFD-induced excessive lipogenesis using ultra-high-performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) analysis. The changes in the gene expression profiles of the liver were examined by RNA sequencing. The potential gut-liver crosstalks were identified by the correlation analysis of key metabolites and genes. The results showed that a total of 113 and 73 differentially abundant metabolites (DAMs) between NFD and HFD groups were identified in the chicken cecum and liver, respectively. Eleven DAMs overlayed between the two comparisons, in which ten DAMs showed consistent abundance trends in the cecum and liver after HFD feeding, suggesting their potential as signaling molecules between the gut and liver. RNA sequencing identified 271 differentially expressed genes (DEGs) in the liver of chickens fed with NFD vs. HFD. Thirty-five DEGs were involved in the lipid metabolic process, which might be candidate genes regulating the lipogenesis of chicken. Correlation analysis indicated that 5-hydroxyisourate, alpha-linolenic acid, bovinic acid, linoleic acid, and trans-2-octenoic acid might be transported from gut to liver, and thereby up-regulate the expression of ACSS2, PCSK9, and CYP2C18 and down-regulate one or more genes of CDS1, ST8SIA6, LOC415787, MOGAT1, PLIN1, LOC423719, and EDN2 in the liver to enhance the lipogenesis of chicken. Moreover, taurocholic acid might be transported from the gut to the liver and contribute to HFD-induced lipogenesis by regulating the expression of ACACA, FASN, AACS, and LPL in the liver. Our findings contribute to a better understanding of gut-liver crosstalks and their potential roles in regulating chicken lipogenesis.
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Affiliation(s)
- Can Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Weilin Chen
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Hao Ding
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Genxi Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
| | - Kaizhou Xie
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
- College of Veterinary Medicine, Yangzhou University, Yangzhou 225009, China
| | - Tao Zhang
- College of Animal Science and Technology, Yangzhou University, Yangzhou 225009, China
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Ministry of Education, Yangzhou University, Yangzhou 225009, China
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5
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Jalili M, Nazari M, Magkos F. Fermented Foods in the Management of Obesity: Mechanisms of Action and Future Challenges. Int J Mol Sci 2023; 24:ijms24032665. [PMID: 36768984 PMCID: PMC9916812 DOI: 10.3390/ijms24032665] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 01/27/2023] [Accepted: 01/28/2023] [Indexed: 02/03/2023] Open
Abstract
Fermented foods are part of the staple diet in many different countries and populations and contain various probiotic microorganisms and non-digestible prebiotics. Fermentation is the process of breaking down sugars by bacteria and yeast species; it not only enhances food preservation but can also increase the number of beneficial gut bacteria. Regular consumption of fermented foods has been associated with a variety of health benefits (although some health risks also exist), including improved digestion, enhanced immunity, and greater weight loss, suggesting that fermented foods have the potential to help in the design of effective nutritional therapeutic approaches for obesity. In this article, we provide a comprehensive overview of the health effects of fermented foods and the corresponding mechanisms of action in obesity and obesity-related metabolic abnormalities.
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Affiliation(s)
- Mahsa Jalili
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, 1165 Copenhagen, Denmark
| | - Maryam Nazari
- Food Safety Research Center (Salt), Semnan University of Medical Sciences, Semnan JF62+4W5, Iran
| | - Faidon Magkos
- Department of Nutrition, Exercise, and Sports, University of Copenhagen, 1165 Copenhagen, Denmark
- Correspondence:
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6
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Cui Y, Ning M, Chen H, Zeng X, Yue Y, Yuan Y, Yue T. Microbial diversity associated with Tibetan kefir grains and its protective effects against ethanol-induced oxidative stress in HepG2 cells. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.102151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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7
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Hou J, Xiang J, Li D, Liu X, Pan W. Gut microbial response to host metabolic phenotypes. Front Nutr 2022; 9:1019430. [PMID: 36419554 PMCID: PMC9676441 DOI: 10.3389/fnut.2022.1019430] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/21/2022] [Indexed: 09/10/2023] Open
Abstract
A large number of studies have proved that biological metabolic phenotypes exist objectively and are gradually recognized by humans. Gut microbes affect the host's metabolic phenotype. They directly or indirectly participate in host metabolism, physiology and immunity through changes in population structure, metabolite differences, signal transduction and gene expression. Obtaining comprehensive information and specific identification factors associated with gut microbiota and host metabolic phenotypes has become the focus of research in the field of gut microbes, and it has become possible to find new and effective ways to prevent or treat host metabolic diseases. In the future, precise treatment of gut microbes will become one of the new therapeutic strategies. This article reviews the content of gut microbes and carbohydrate, amino acid, lipid and nucleic acid metabolic phenotypes, including metabolic intermediates, mechanisms of action, latest research findings and treatment strategies, which will help to understand the relationship between gut microbes and host metabolic phenotypes and the current research status.
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Affiliation(s)
- Jinliang Hou
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Jianguo Xiang
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Deliang Li
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
| | - Xinhua Liu
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, China
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Indigenous Chinese fermented dairy products: Microbial diversity, flavour, and health benefits. Int Dairy J 2022. [DOI: 10.1016/j.idairyj.2022.105479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Ganoderma lucidum protease hydrolyzate on lipid metabolism and gut microbiota in high-fat diet fed rats. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2021.101460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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10
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Yilmaz B, Sharma H, Melekoglu E, Ozogul F. Recent developments in dairy kefir-derived lactic acid bacteria and their health benefits. FOOD BIOSCI 2022. [DOI: 10.1016/j.fbio.2022.101592] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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11
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Luna-Castillo KP, Olivares-Ochoa XC, Hernández-Ruiz RG, Llamas-Covarrubias IM, Rodríguez-Reyes SC, Betancourt-Núñez A, Vizmanos B, Martínez-López E, Muñoz-Valle JF, Márquez-Sandoval F, López-Quintero A. The Effect of Dietary Interventions on Hypertriglyceridemia: From Public Health to Molecular Nutrition Evidence. Nutrients 2022; 14:nu14051104. [PMID: 35268076 PMCID: PMC8912493 DOI: 10.3390/nu14051104] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2022] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 11/16/2022] Open
Abstract
Approximately 25–50% of the population worldwide exhibits serum triglycerides (TG) (≥150 mg/dL) which are associated with an increased level of highly atherogenic remnant-like particles, non-alcoholic fatty liver disease, and pancreatitis risk. High serum TG levels could be related to cardiovascular disease, which is the most prevalent cause of mortality in Western countries. The etiology of hypertriglyceridemia (HTG) is multifactorial and can be classified as primary and secondary causes. Among the primary causes are genetic disorders. On the other hand, secondary causes of HTG comprise lifestyle factors, medical conditions, and drugs. Among lifestyle changes, adequate diets and nutrition are the initial steps to treat and prevent serum lipid alterations. Dietary intervention for HTG is recommended in order to modify the amount of macronutrients. Macronutrient distribution changes such as fat or protein, low-carbohydrate diets, and caloric restriction seem to be effective strategies in reducing TG levels. Particularly, the Mediterranean diet is the dietary pattern with the most consistent evidence for efficacy in HTG while the use of omega-3 supplements consumption is the dietary component with the highest number of randomized clinical trials (RCT) carried out with effective results on reducing TG. The aim of this review was to provide a better comprehension between human nutrition and lipid metabolism.
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Affiliation(s)
- Karla Paulina Luna-Castillo
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Xochitl Citlalli Olivares-Ochoa
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Rocío Guadalupe Hernández-Ruiz
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Iris Monserrat Llamas-Covarrubias
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Saraí Citlalic Rodríguez-Reyes
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Alejandra Betancourt-Núñez
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
| | - Barbara Vizmanos
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Erika Martínez-López
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - José Francisco Muñoz-Valle
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Investigación en Ciencias Biomédicas, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
| | - Fabiola Márquez-Sandoval
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
- Correspondence: (F.M.-S.); (A.L.-Q.); Tel.: +52-(33)1058-5200 (ext. 33644 or 33704) (F.M.-S.)
| | - Andres López-Quintero
- Doctorado en Ciencias de la Nutrición Traslacional, Centro Universitario de Ciencias de la Salud (CUCS), Universidad de Guadalajara (UdeG), Guadalajara 44340, Jalisco, Mexico; (K.P.L.-C.); (X.C.O.-O.); (R.G.H.-R.); (I.M.L.-C.); (S.C.R.-R.); (A.B.-N.); (B.V.); (E.M.-L.); (J.F.M.-V.)
- Instituto de Nutrigenética y Nutrigenómica Traslacional, CUCS, UdeG, Guadalajara 44340, Jalisco, Mexico
- Correspondence: (F.M.-S.); (A.L.-Q.); Tel.: +52-(33)1058-5200 (ext. 33644 or 33704) (F.M.-S.)
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12
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Abstract
Oscillospira is a class of organism that often appears in high-throughput sequencing data but has not been purely cultured and is widely present in the animal and human intestines. There is a strong association between variation in Oscillospira abundance and obesity, leanness, and human health. In addition, a growing body of studies has shown that Oscillospira is also implicated in other diseases, such as gallstones and chronic constipation, and has shown some correlation with the positive or negative changes in its course. Sequencing data combined with metabolic profiling indicate that Oscillospira is likely to be a genus capable of producing short-chain fatty acids (SCFAs) such as butyrate, which is an important reference indicator for screening "next-generation probiotics ". Considering the positive effects of Oscillospira in some specific diseases, such as obesity-related metabolic diseases, it has already been characterized as one of the next-generation probiotic candidates and therefore has great potential for development and application in the future food, health care, and biopharmaceutical products.
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Affiliation(s)
- Jingpeng Yang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China,CONTACT Jingpeng Yang
| | - Yanan Li
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Zhiqiang Wen
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Wenzheng Liu
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - Lingtong Meng
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China
| | - He Huang
- School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing, China,He Huang School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, 2 Xuelin Road, Qixia District, Nanjing, China
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13
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Tarakci NG, Erdem NZ, Dumen E. Probiotic Foods Are Effective on Weight Loss, Biochemical Parameters, and Intestinal Microbiota in Wistar Albino Rats with Obese Microbiota. Int J Clin Pract 2022; 2022:4569100. [PMID: 35685527 PMCID: PMC9159110 DOI: 10.1155/2022/4569100] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 02/10/2022] [Accepted: 02/12/2022] [Indexed: 11/17/2022] Open
Abstract
The positive effects of various probiotic foods on weight control, intestinal microbiota, and biochemical markers have been proven by various studies. However, there is no study on such effects of tarhana and kefir + tarhana consumption, a type of Turkish food rich in Lactobacillus spp., Pediococcus pentosaceus, Pediococcus acidilactici, and Saccharomyces cerevisiae. This study aimed to determine the changes caused by regular consumption of kefir and/or tarhana for 6 months on weight gain, intestinal microbiota, and biochemical parameters in Wistar albino rats with obese microbiota. Therefore, thirty-five rats were fed with five different methods of oral gavage (n = 7 per group): Normal Diet Control (NDC), High Fat Diet Control (HFDC), 6 mL/kg Kefir + High Fat Diet (Kefir + HFD), 0.2 g/kg Tarhana + High Fat Diet (Tarhana + HFD), and 6 mL/kg Kefir + 0.2 g/kg Tarhana + High Fat Diet (Kefir + Tarhana + HFD). Normality tests were evaluated using the One-Sample Kolmogorov test and Histogram graph. Multiple group comparisons were performed using one-way ANOVA and Tukey's HSD post hoc test, and the statistical significances were indicated by different letters (p < 0.05). Comparisons by gender were performed using the independent samples t-test. Kefir consumption was more effective on decreasing weight gain. Obese microbiota significantly increased blood glucose level and decreased red blood cell (RBC), hematocrit (HCT), hemoglobin, mean corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC), platelets (PLT), and white blood cells. RBC and HCT values in Kefir + HFD, PLT value in Tarhana + HFD, and mean corpuscular volume (MCV), MCH, and MCHC values in Kefir + Tarhana + HFD were higher than those of other groups (p < 0.05). Kefir + tarhana consumption significantly showed an increase in blood glucose. Kefir and/or tarhana induced the abundance of Lactobacillus and blocked the abundances of total coliform bacteria and Escherichia coli (p < 0.05). We demonstrated that kefir was effective in decreasing weight gain, and all dietary interventions induced positive alterations on biochemical findings and intestinal microbiota.
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Affiliation(s)
- Nadide Gizem Tarakci
- Department of Nutrition and Dietetics Institute of Health Sciences, Istanbul Medipol University, 34810 Istanbul, Turkey
| | - Nihal Zekiye Erdem
- Department of Nutrition and Dietetics School of Health Sciences, Istanbul Medipol University, 34083 Istanbul, Turkey
| | - Emek Dumen
- Department of Food Hygiene and Technology Faculty of Veterinary Medicine, Istanbul University-Cerrahpasa, 34500 Istanbul, Turkey
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14
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Tung YT, Zeng JL, Ho ST, Xu JW, Lin IH, Wu JH. Djulis Hull Improves Insulin Resistance and Modulates the Gut Microbiota in High-Fat Diet (HFD)-Induced Hyperglycaemia. Antioxidants (Basel) 2021; 11:45. [PMID: 35052549 PMCID: PMC8772896 DOI: 10.3390/antiox11010045] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2021] [Revised: 12/21/2021] [Accepted: 12/25/2021] [Indexed: 12/15/2022] Open
Abstract
In this study, we annotated the major flavonoid glycoside, rutin, of djulis hull crude extract using a Global Natural Products Social Molecular Networking (GNPS) library and its MS/MS spectra. To evaluate the protective effect of djulis hull crude extract and rutin on glucose tolerance, we fed mice a high-fat diet (HFD) for 16 weeks to induce hyperglycaemia. These results showed that crude extract significantly decreased HFD-induced elevation in the area under the curve (AUC) of weekly random blood glucose and oral glucose tolerance tests (OGTT), homeostasis model assessment (HOMA-IR), and advanced glycation end product (AGE) levels, and significantly increased pIRS1 and Glut4 protein expression in epididymal white adipose tissue (eWAT) and liver. Furthermore, the HFD-induced reduction in the activity of glutathione peroxidase (GPx) and catalase (CAT) was reversed by crude extract. In addition, ZO-1 and occludin protein expression in the colon was markedly downregulated in HFD-fed mice, resulting in decreased intestinal permeability and lipopolysaccharide (LPS) translocation, but were restored following crude extract. Moreover, the crude extract intervention had a profound effect on the alpha diversity and microbial community in the gut microbiota. Therefore, djulis hull crude extract could improve blood glucose and increase insulin receptor sensitivity in HFD-induced hyperglycaemia, which is likely due to its modulation of the gut microbiota, preservation of the integrity of the intestinal barrier to reduce body inflammation, increased antioxidant activity, and modulation of insulin signalling.
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Affiliation(s)
- Yu-Tang Tung
- Graduate Institute of Biotechnology, National Chung Hsing University, Taichung 402, Taiwan;
- Nutrition Research Center, Taipei Medical University Hospital, Taipei 110, Taiwan
- Cell Physiology and Molecular Image Research Center, Wan Fang Hospital, Taipei Medical University, Taipei 116, Taiwan
| | - Jun-Lan Zeng
- Department of Forestry, National Chung Hsing University, Taichung 402, Taiwan; (J.-L.Z.); (J.-W.X.)
| | - Shang-Tse Ho
- Department of Wood Based Materials and Design, National Chiayi University, Chiayi 600, Taiwan;
| | - Jin-Wei Xu
- Department of Forestry, National Chung Hsing University, Taichung 402, Taiwan; (J.-L.Z.); (J.-W.X.)
| | - I-Hsuan Lin
- Bioinformatics Core Facility, University of Manchester, Manchester M13 9PT, UK;
- TMU Research Center of Cancer Translational Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Jyh-Horng Wu
- Department of Forestry, National Chung Hsing University, Taichung 402, Taiwan; (J.-L.Z.); (J.-W.X.)
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15
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Fu M, Mao K, Gao J, Wang X, Sadiq FA, Li J, Sang Y. Characteristics of surface layer protein from Lactobacillus kefiri HBA20 and the role in mediating interactions with Saccharomyces cerevisiae Y8. Int J Biol Macromol 2021; 201:254-261. [PMID: 34952095 DOI: 10.1016/j.ijbiomac.2021.12.049] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2021] [Revised: 12/07/2021] [Accepted: 12/07/2021] [Indexed: 11/18/2022]
Abstract
In this study, the surface layer protein (SLP) from Lactobacillus kefiri HBA20 was characterized. The SLP was extracted by 5 M LiCl. The molecular mass of the SLP was approximately 64 kDa as analyzed via SDS-PAGE. The surface morphology and the adhesion potential of L. kefiri HBA20 in the absence and presence of SLP were measured by AFM. Moreover, the protein secondary structure was evaluated by using circular dichroism (CD) and Fourier transform infrared spectroscopy (FTIR), respectively. SLP had high β-sheet contents and low content of α-helix. Thermal analysis of SLP of Lactobacillus kefiri HBA20 exhibited one transition peak at 129.64 °C. Furthermore, SEM measurements were showed that after the SLP were removed from the cell surface, the coaggregation ability with Saccharomyces cerevisiae Y8 of the strain was significantly reduced. In conclusion, the SLP of Lactobacillus kefiri HBA20 has a stable structure and the ability of adhesion to yeast. Molecular docking study revealed that mannan bind with the hydrophobic residues of SLP. Our results will help further understanding of the new surface layer protein and the interaction between L. kefiri and S. cerevisiae.
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Affiliation(s)
- Mengqi Fu
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Kemin Mao
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Jie Gao
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Xianghong Wang
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | | | - Jiale Li
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Yaxin Sang
- Collage of Food Science and Technology, Hebei Agricultural University, Baoding, China.
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16
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Gao J, Mao K, Wang X, Mi S, Fu M, Li X, Xiao J, Simal-Gandara J, Sang Y. Tibet Kefir Milk Regulated Metabolic Changes Induced by High-Fat Diet via Amino Acids, Bile Acids, and Equol Metabolism in Human-Microbiota-Associated Rats. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:6720-6732. [PMID: 34081859 DOI: 10.1021/acs.jafc.1c02430] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This study aimed to confirm the effects of Tibet kefir milk (TKM) on gut microbiota and metabolism. An obesity model was established by feeding a high-fat diet (HFD) to human-microbiota-associated rats. Next-generation sequencing and ultrahigh-performance liquid chromatography-quadrupole time-of-flight mass spectrometry were applied for gut microbiota and untargeted metabolomics, respectively. After 8 weeks of feeding, the enterotype in the HFD group was switched from ET1 (Prevotella/Akkermansia-dominant) to ET2 (Bacteroides/Akkermansia-dominant). Branched-chain amino-acids- and aromatic amino-acids-metabolism increased, and taurine-conjugated bile acids decreased in the HFD group. Compared with the HFD group, taurocholic acid increased in the TKM1 group, while l-threonine decreased, and equol, taurochenodeoxycholate, and taurodeoxycholic acid increased in the TKM2 group. The metabolite alteration suggested restorative bile acid metabolism, modified metabolic pattern of amino acids, and elevation of anti-obesity factors in the TKM-intervened animals. It can be deduced that changes by TKM intervention in the host gut metabolites are the major contributors to reducing fat deposition.
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Affiliation(s)
- Jie Gao
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University, No. 11, Fucheng Road, Beijing CN 100048, China
| | - Kemin Mao
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China
| | - Xianghong Wang
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China
| | - Si Mi
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China
| | - Mengqi Fu
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China
| | - Xiyu Li
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China
| | - Jianbo Xiao
- Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, E-32004, Spain
| | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo, Ourense Campus, E-32004 Ourense, ES 36310, Spain
| | - Yaxin Sang
- Department of Food Science and Technology, Hebei Agricultural University, No. 2596, Lekai South Street, Baoding, Hebei CN 071000, China
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Zheng Z, Lyu W, Ren Y, Li X, Zhao S, Yang H, Xiao Y. Allobaculum Involves in the Modulation of Intestinal ANGPTLT4 Expression in Mice Treated by High-Fat Diet. Front Nutr 2021; 8:690138. [PMID: 34095196 PMCID: PMC8171929 DOI: 10.3389/fnut.2021.690138] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2021] [Accepted: 04/26/2021] [Indexed: 12/22/2022] Open
Abstract
Increasing studies have shown that obesity is the primary cause of cardiovascular diseases, non-alcoholic fatty liver diseases, type 2 diabetes, and a variety of cancers. The dysfunction of gut microbiota was proved to result in obesity. Recent research indicated ANGPTL4 was a key regulator in lipid metabolism and a circulating medium for gut microbiota and fat deposition. The present study was conducted to investigate the alteration of gut microbiota and ANGPTL4 expression in the gastrointestinal tract of mice treated by the high-fat diet. Ten C57BL/6J mice were randomly allocated to two groups and fed with a high-fat diet (HFD) containing 60% fat or a normal-fat diet (Control) containing 10% fat. The segments of ileum and colon were collected for the determination of ANGPTL4 expression by RT-qPCR and immunohistochemical analysis while the ileal and colonic contents were collected for 16S rRNA gene sequencing. The results showed HFD significantly increased mice body weight, epididymal fat weight, perirenal fat weight, liver weight, and the lipid content in the liver (P < 0.05). The relative expression of ANGPTL4 and the ANGPTL4-positive cells in the ileum and colon of mice was significantly increased by HFD treatment. Furthermore, 16S rRNA gene sequencing of the ileal and colonic microbiota suggested that HFD treatment changed the composition of the gut microbiota. The ratio of Firmicutes to Bacteroidetes and the abundance of Allobaculum was significantly higher in the HFD group than in the Control group while the abundance of Adlercreutzia, Bifidobacterium, Prevotellaceae UCG-001, and Ruminococcus was significantly decreased. Interestingly, the abundance of Allobaculum was positively correlated with the expression of ANGPTL4. These findings provide a theoretical foundation for the development of strategies to control the obesity and related diseases by the regulation of ANGPTL4 and gut microbiota.
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Affiliation(s)
- Zibin Zheng
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China.,Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Wentao Lyu
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Ying Ren
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Xiaoqiong Li
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Shenjun Zhao
- Hubei Key Laboratory of Animal Nutrition and Feed Science, Wuhan Polytechnic University, Wuhan, China
| | - Hua Yang
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
| | - Yingping Xiao
- State Key Laboratory for Managing Biotic and Chemical Threats to the Quality and Safety of Agro-Products, Institute of Agro-Product Safety and Nutrition, Zhejiang Academy of Agricultural Sciences, Hangzhou, China
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18
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Gao J, Li X, Zhang G, Sadiq FA, Simal-Gandara J, Xiao J, Sang Y. Probiotics in the dairy industry-Advances and opportunities. Compr Rev Food Sci Food Saf 2021; 20:3937-3982. [PMID: 33938124 DOI: 10.1111/1541-4337.12755] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2021] [Revised: 03/09/2021] [Accepted: 03/22/2021] [Indexed: 02/06/2023]
Abstract
The past two decades have witnessed a global surge in the application of probiotics as functional ingredients in food, animal feed, and pharmaceutical products. Among food industries, the dairy industry is the largest sector where probiotics are employed in a number of dairy products including sour/fermented milk, yogurt, cheese, butter/cream, ice cream, and infant formula. These probiotics are either used as starter culture alone or in combination with traditional starters, or incorporated into dairy products following fermentation, where their presence imparts many functional characteristics to the product (for instance, improved aroma, taste, and textural characteristics), in addition to conferring many health-promoting properties. However, there are still many challenges related to the stability and functionality of probiotics in dairy products. This review highlights the advances, opportunities, and challenges of application of probiotics in dairy industries. Benefits imparted by probiotics to dairy products including their role in physicochemical characteristics and nutritional properties (clinical and functional perspective) are also discussed. We transcend the traditional concept of the application of probiotics in dairy products and discuss paraprobiotics and postbiotics as a newly emerged concept in the field of probiotics in a particular relation to the dairy industry. Some potential applications of paraprobiotics and postbiotics in dairy products as functional ingredients for the development of functional dairy products with health-promoting properties are briefly elucidated.
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Affiliation(s)
- Jie Gao
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Xiyu Li
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
| | - Guohua Zhang
- School of Life Science, Shanxi University, Taiyuan, China
| | | | - Jesus Simal-Gandara
- Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Food Science and Technology, University of Vigo - Ourense Campus, Ourense, Spain
| | - Jianbo Xiao
- Institute of Chinese Medical Sciences, State Key Laboratory of Quality Research in Chinese Medicine, University of Macau, Taipa, China
| | - Yaxin Sang
- College of Food Science and Technology, Hebei Agricultural University, Baoding, China
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Akar F, Sumlu E, Alçığır ME, Bostancı A, Sadi G. Potential mechanistic pathways underlying intestinal and hepatic effects of kefir in high-fructose-fed rats. Food Res Int 2021; 143:110287. [PMID: 33992387 DOI: 10.1016/j.foodres.2021.110287] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 12/26/2022]
Abstract
Excess intake of fructose may contribute to the high prevalence of metabolic disorder. In this study, we investigated the effects of kefir supplementation on the intestine-liver-adipose tissue axis in metabolic disorder induced by high-fructose diet in rats to describe mechanistic action and potential therapeutic value of kefir. Fructose was given to the rats as a 20% solution in drinking water for 15 weeks. Kefir was administrated by gastric gavage once a day during the final six weeks. Kefir supplementation improved metabolic parameters, including plasma triglyceride and insulin levels; hepatic weight, triglyceride content and fatty degeneration; omental fat mass in fructose-fed rats. Kefir supplementation decreased the ratio of Firmicutes/Bacteroidetes in feces, as well as necrotic degeneration, expression levels of nuclear factor-kappa B (NF-κB), and inducible nitric oxide synthase (iNOS), but increased expression of tight-junction proteins occludin and claudin-1, in the ileum of the fructose-fed rats. Kefir treatment also reduced the mRNA levels of key lipogenic genes sterol regulatory element-binding protein (SREBP-1c) and fatty acid synthase (FASN) together with a decline in expression of tumor necrosis factor-alpha (TNF-α), NF-κB, and glycosylated glycoprotein (CD68) in the liver. Moreover, kefir treatment improved insulin signaling at the level of insulin receptor substrate 1 (IRS-1) and phospho-endothelial nitric oxide synthase (peNOS) as well as fructose transporters (GLUT2 and GLUT5) in the liver, but not in the adipose tissue, of high-fructose-fed rats. Consequently, kefir supplementation suppresses hepatic lipogenesis and inflammatory status, but promotes insulin signaling, in association with a change of the fecal microbiota and attenuation of the intestinal permeability factors in high-fructose-fed rats. Thus, we propose that kefir has favorable effects on the hepatic and intestinal irregularities induced by fructose overconsumption.
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Affiliation(s)
- Fatma Akar
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey.
| | - Esra Sumlu
- Department of Pharmacology, Faculty of Pharmacy, Gazi University, Ankara, Turkey
| | - Mehmet Eray Alçığır
- Department of Pathology, Faculty of Veterinary Medicine, Kırıkkale University, Kırıkkale, Turkey
| | - Aykut Bostancı
- Department of Biology, K.Ö. Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
| | - Gökhan Sadi
- Department of Biology, K.Ö. Science Faculty, Karamanoglu Mehmetbey University, Karaman, Turkey
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21
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Jung KH, Son MK, Yan HH, Fang Z, Kim J, Kim SJ, Park JH, Lee JE, Yoon Y, Seo MS, Han BS, Ko S, Suh YJ, Lim JH, Lee D, Teo Z, Wee JWK, Tan NS, Hong S. ANGPTL4 exacerbates pancreatitis by augmenting acinar cell injury through upregulation of C5a. EMBO Mol Med 2020; 12:e11222. [PMID: 32638512 PMCID: PMC7411571 DOI: 10.15252/emmm.201911222] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2019] [Revised: 05/29/2020] [Accepted: 05/29/2020] [Indexed: 01/08/2023] Open
Abstract
Pancreatitis is the inflammation of the pancreas. However, little is known about the genes associated with pancreatitis severity. Our microarray analysis of pancreatic tissues from mild and severe acute pancreatitis mice models identified angiopoietin-like 4 (ANGPTL4) as one of the most significantly upregulated genes. Clinically, ANGPTL4 expression was also increased in the serum and pancreatic tissues of pancreatitis patients. The deficiency in ANGPTL4 in mice, either by gene deletion or neutralizing antibody, mitigated pancreatitis-associated pathological outcomes. Conversely, exogenous ANGPTL4 exacerbated pancreatic injury with elevated cytokine levels and apoptotic cell death. High ANGPTL4 enhanced macrophage activation and infiltration into the pancreas, which increased complement component 5a (C5a) level through PI3K/AKT signaling. The activation of the C5a receptor led to hypercytokinemia that accelerated acinar cell damage and furthered pancreatitis. Indeed, C5a neutralizing antibody decreased inflammatory response in LPS-activated macrophages and alleviated pancreatitis severity. In agreement, there was a significant positive correlation between C5a and ANGPTL4 levels in pancreatitis patients. Taken together, our study suggests that targeting ANGPTL4 is a potential strategy for the treatment of pancreatitis.
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Affiliation(s)
- Kyung Hee Jung
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Mi Kwon Son
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Hong Hua Yan
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Zhenghuan Fang
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Juyoung Kim
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Soo Jung Kim
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Jung Hee Park
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Ji Eun Lee
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Young‐Chan Yoon
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Myeong Seong Seo
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Beom Seok Han
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Soyeon Ko
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Young Ju Suh
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Joo Han Lim
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Don‐Haeng Lee
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
| | - Ziqiang Teo
- School of Biological ScienceCollege of ScienceNanyang Technological University SingaporeSingapore CitySingapore
| | - Jonathan Wei Kiat Wee
- School of Biological ScienceCollege of ScienceNanyang Technological University SingaporeSingapore CitySingapore
| | - Nguan Soon Tan
- School of Biological ScienceCollege of ScienceNanyang Technological University SingaporeSingapore CitySingapore
- Lee Kong Chian School of MedicineNanyang Technological University SingaporeSingapore CitySingapore
| | - Soon‐Sun Hong
- Department of MedicineCollege of MedicineInha UniversityIncheonKorea
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22
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Bourrie BCT, Richard C, Willing BP. Kefir in the Prevention and Treatment of Obesity and Metabolic Disorders. Curr Nutr Rep 2020; 9:184-192. [DOI: 10.1007/s13668-020-00315-3] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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van de Wouw M, Walsh AM, Crispie F, van Leuven L, Lyte JM, Boehme M, Clarke G, Dinan TG, Cotter PD, Cryan JF. Distinct actions of the fermented beverage kefir on host behaviour, immunity and microbiome gut-brain modules in the mouse. MICROBIOME 2020; 8:67. [PMID: 32423436 PMCID: PMC7236220 DOI: 10.1186/s40168-020-00846-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2019] [Accepted: 04/26/2020] [Indexed: 05/23/2023]
Abstract
BACKGROUND Mounting evidence suggests a role for the gut microbiota in modulating brain physiology and behaviour, through bi-directional communication, along the gut-brain axis. As such, the gut microbiota represents a potential therapeutic target for influencing centrally mediated events and host behaviour. It is thus notable that the fermented milk beverage kefir has recently been shown to modulate the composition of the gut microbiota in mice. It is unclear whether kefirs have differential effects on microbiota-gut-brain axis and whether they can modulate host behaviour per se. METHODS To address this, two distinct kefirs (Fr1 and UK4), or unfermented milk control, were administered to mice that underwent a battery of tests to characterise their behavioural phenotype. In addition, shotgun metagenomic sequencing of ileal, caecal and faecal matter was performed, as was faecal metabolome analysis. Finally, systemic immunity measures and gut serotonin levels were assessed. Statistical analyses were performed by ANOVA followed by Dunnett's post hoc test or Kruskal-Wallis test followed by Mann-Whitney U test. RESULTS Fr1 ameliorated the stress-induced decrease in serotonergic signalling in the colon and reward-seeking behaviour in the saccharin preference test. On the other hand, UK4 decreased repetitive behaviour and ameliorated stress-induced deficits in reward-seeking behaviour. Furthermore, UK4 increased fear-dependent contextual memory, yet decreased milk gavage-induced improvements in long-term spatial learning. In the peripheral immune system, UK4 increased the prevalence of Treg cells and interleukin 10 levels, whereas Fr1 ameliorated the milk gavage stress-induced elevation in neutrophil levels and CXCL1 levels. Analysis of the gut microbiota revealed that both kefirs significantly changed the composition and functional capacity of the host microbiota, where specific bacterial species were changed in a kefir-dependent manner. Furthermore, both kefirs increased the capacity of the gut microbiota to produce GABA, which was linked to an increased prevalence in Lactobacillus reuteri. CONCLUSIONS Altogether, these data show that kefir can signal through the microbiota-gut-immune-brain axis and modulate host behaviour. In addition, different kefirs may direct the microbiota toward distinct immunological and behavioural modulatory effects. These results indicate that kefir can positively modulate specific aspects of the microbiota-gut-brain axis and support the broadening of the definition of psychobiotic to include kefir fermented foods. Video abstract.
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Affiliation(s)
- Marcel van de Wouw
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland
| | - Aaron M Walsh
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
- Microbiology Department, University College Cork, Cork, Ireland
| | - Fiona Crispie
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland
| | | | - Joshua M Lyte
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Marcus Boehme
- APC Microbiome Ireland, University College Cork, Cork, Ireland
| | - Gerard Clarke
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork, Ireland
| | - Timothy G Dinan
- APC Microbiome Ireland, University College Cork, Cork, Ireland
- Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork, Ireland
| | - Paul D Cotter
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
- Teagasc Food Research Centre, Moorepark, Fermoy, Cork, Ireland.
| | - John F Cryan
- APC Microbiome Ireland, University College Cork, Cork, Ireland.
- Department of Anatomy and Neuroscience, University College Cork, Cork, Ireland.
- Department of Psychiatry and Neurobehavioral Science, University College Cork, Cork, Ireland.
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Pražnikar ZJ, Kenig S, Vardjan T, Bizjak MČ, Petelin A. Effects of kefir or milk supplementation on zonulin in overweight subjects. J Dairy Sci 2020; 103:3961-3970. [PMID: 32171508 DOI: 10.3168/jds.2019-17696] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2019] [Accepted: 01/20/2020] [Indexed: 12/17/2022]
Abstract
Increased intestinal permeability has been shown to be involved in several diseases associated with low-grade chronic inflammation, including obesity and metabolic syndrome. In the last decade, growing evidence shows the beneficial effects of probiotic-containing food supplementation on these conditions. In this crossover intervention study on 28 asymptomatic overweight adults, we tested the effects of a 3-wk kefir supplementation compared with a 3-wk milk supplementation on serum zonulin levels. The effects on serum glucose, triacylglycerols, low-density lipoproteins, high-density lipoproteins, total cholesterol, markers of inflammation (C-reactive protein and adiponectin), anthropometric variables, mood, and appetite were also determined. Kefir supplementation resulted in a greater improvement of serum zonulin levels (F = 6.812, η2 = 0.275), whereas a significant yet similar improvement in lipid profile and serum glucose levels was found in both supplementations. Positive mood was slightly but significantly enhanced with kefir supplementation, and reduced with milk supplementation. The C-reactive protein, adiponectin, and appetite were unaffected. In conclusion, supplementation with both dairy products had health beneficial effects, but only kefir showed an effect on the intestinal barrier dysfunction marker.
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Affiliation(s)
- Z Jenko Pražnikar
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310 Izola, Slovenia
| | - S Kenig
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310 Izola, Slovenia
| | - T Vardjan
- Kele & Kele, d.o.o., Laze 22/a, SI-1370 Logatec, Slovenia
| | - M Černelič Bizjak
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310 Izola, Slovenia
| | - A Petelin
- Faculty of Health Sciences, University of Primorska, Polje 42, SI-6310 Izola, Slovenia.
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25
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Zhong W, Shen J, Liao X, Liu X, Zhang J, Zhou C, Jin Y. Camellia ( Camellia oleifera Abel.) seed oil promotes milk fat and protein synthesis-related gene expression in bovine mammary epithelial cells. Food Sci Nutr 2020; 8:419-427. [PMID: 31993168 PMCID: PMC6977417 DOI: 10.1002/fsn3.1326] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2019] [Revised: 11/15/2019] [Accepted: 11/18/2019] [Indexed: 12/24/2022] Open
Abstract
Camellia (Camellia oleifera Abel.) seed oil is a commonly used edible oil of China. In ancient Chinese literature, it is mentioned to be helpful for postpartum repair and lactation in women. Research on camellia seed oil (CO) as a feed additive for dairy cattle is less. We investigated the effect of CO on the expression of milk fat and protein syntheses-related genes in differentiated bovine mammary epithelial cells (MAC-T) using soybean oil (SO) as the control. The results showed that CO increased the expression of genes related to de novo synthesis of fatty acids including sterol regulatory element-binding protein 1 (SREBP1), acetyl-CoA carboxylase 1 (ACC), fatty acid synthase (FASN), lipoprotein lipase (LPL), and stearoyl-CoA desaturase (SCD) (p < .05). Among the milk protein genes analyzed, CO increased β-casein mRNA expression (p < .05) and decreased αS1-casein mRNA expression (p < .05) in MAC-T cells. CO upregulated the pathways related to milk protein synthesis with increased mRNA levels of phosphoinositide 3-kinase (PI3K), RAC-alpha serine/threonine-protein kinase (AKT1), and mammalian target of rapamycin (mTOR) (p < .05) in MAC-T cells. Ribosomal protein S6 kinase beta-1 (S6K1) gene was upregulated, and eukaryotic initiation factor 4E (eIF4E) gene (p < .05) was downregulated with CO treatment. The mRNA expression levels of janus kinase 2 (JAK2), activator of transcription 5-β (STAT5-β), and E74-like factor 5 (ELF5) were elevated in MAC-T cells treated with CO (p < .05). Meanwhile, the protein expression levels of S6K1, STAT5-β, phosphorylated mTOR (p-mTOR), p-S6K1, and p-STAT5-β increased in MAC-T cells treated with CO (p < .05). In summary, CO promoted β-casein synthesis by regulating PI3K-mTOR-S6K1 and JAK2-STAT5 signaling pathways and influenced fatty acid synthesis by regulating SREBP1-related genes in MAC-T cells. We need to further confirm the function of CO using in vivo models.
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Affiliation(s)
- Wanqi Zhong
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
| | - Jinglin Shen
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
| | - Xiandong Liao
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
| | - Xinlu Liu
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
| | - Jing Zhang
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
| | - Changhai Zhou
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
| | - Yongcheng Jin
- Department of Animal ScienceCollege of Animal ScienceJilin UniversityChangchunChina
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26
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Influence of the production technology on kefir characteristics: Evaluation of microbiological aspects and profiling of phosphopeptides by LC-ESI-QTOF-MS/MS. Food Res Int 2019; 129:108853. [PMID: 32036889 DOI: 10.1016/j.foodres.2019.108853] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 11/18/2019] [Accepted: 11/20/2019] [Indexed: 12/24/2022]
Abstract
The influence of production technology, namely, temperature, pH and 2-step fermentation (back-slopping approach), on the microbiological characteristics and on the phosphopeptide profile of kefir obtained with kefir grains was investigated. The growth of yeasts, lactic acid bacteria (LAB) and acetic acetic bacteria (AAB) in both grains and kefir was affected by the incubation temperature and by the use of back-slopping. In particular, at 25 °C the microbiota of kefir grains was mainly composed by LAB and yeasts, while at 18 °C yeasts represented the dominant group in kefir. Back-slopping at 25 °C determined a significant increase of AAB. A comprehensive characterization of potentially bioactive peptides, including caseino-phosphopeptides (CPPs), was performed, for the first time, in kefir obtained with kefir grains, using preliminary enrichment on hydroxyapatite followed by dephosphorylation and analysis by Liquid Chromatography-ElectroSpray Ionization-Quadrupole-Time of Flight-tandem mass spectrometry (LC-ESI-QTOF-MS/MS). As a result, seventy-three phosphopeptides, mostly arising from caseins (79% β-casein, 8% αs1-casein and 9% αs2-casein) and all including from three to five serine residues in their sequences, were identified. Seventy-one of them showed the typical motif "SerP-SerP-SerP-Glu-Glu", which is crucial for the ability of caseins to bind to minerals. Several peptides were observed, for the first time, from the 1-40 region of β-casein. As for the effect of production technology, phosphopeptide profiles of kefirs obtained at 25 °C and 18 °C were very similar, whereas kefir produced under acidic conditions showed a predominance of smaller peptides, suggesting a higher level of proteolysis. Conversely, kefir obtained through back-slopping at 25 °C contained longer peptides, thus indicating a lower proteolytic activity and a poor reproducibility in the kefir phosphopeptide profile occurring when grains are reused.
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27
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Huang K, Yu W, Li S, Guan X, Liu J, Song H, Liu D, Duan R. Effect of embryo-remaining oat rice on the lipid profile and intestinal microbiota in high-fat diet fed rats. Food Res Int 2019; 129:108816. [PMID: 32036900 DOI: 10.1016/j.foodres.2019.108816] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2019] [Revised: 11/08/2019] [Accepted: 11/10/2019] [Indexed: 01/01/2023]
Abstract
Embryo-remaining oat rice (EROR), as a newly developed oat product, is popular in China for its good taste, but little is known about its healthy functions. In this study, the effects of EROR on lipid metabolism regulation were investigated in in vitro and in vivo models. The results showed that the oat ethanol extracts significantly alleviated lipid accumulation, total cholesterol and triglyceride levels in HepG2 cells. EROR supplementation dramatically improved the lipid profile in the serum and liver and downregulated the expression levels of HMGCR, SREBP-1C and FAS, which are related to lipid metabolic disorder in high-fat diet (HFD) fed rats. A HFD decreases the production of short-chain fatty acids (SCFAs) in the cecum, which are related to intestinal microbiota dysbiosis. The intake of EROR significantly increased the total SCFAs, acetate and propionate and promoted the abundance of SCFA-producing bacteria. Furthermore, the intake of EROR led to abundant increases in Bifidobacterium and Akkermansia and decreases of Rombutsia, Fusicatenibacter, Holdemanella and Turicibacter, which were negatively and positively correlated with the lipid metabolism-related indices. These results provide evidence that EROR is a good functional food candidate to ameliorate lipid metabolic disorder and hyperlipidemia.
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Affiliation(s)
- Kai Huang
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Wenwen Yu
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Sen Li
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Xiao Guan
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China.
| | - Jing Liu
- College of Information Engineering, Shanghai Maritime University, Shanghai 200135, PR China
| | - Hongdong Song
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Dandan Liu
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
| | - Ruiqian Duan
- School of Medical Instruments and Food Engineering, University of Shanghai for Science and Technology, Shanghai, PR China
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