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Yamamoto Y, Maki K, Kusuhara S, Yokoi W, Tochiya K, Okumura T, Ito M, Miyazaki K, Harada K, Takagi A. Orally administered Streptococcus thermophilus YIT 2001 is a vehicle for the delivery of glutathione, a reactive reduced thiol, to the intestine. J Appl Microbiol 2024; 135:lxad317. [PMID: 38148140 DOI: 10.1093/jambio/lxad317] [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: 05/25/2023] [Revised: 11/26/2023] [Accepted: 12/24/2023] [Indexed: 12/28/2023]
Abstract
AIMS We aimed to analyze the behavior of cellular glutathione of Streptococcus thermophilus strain YIT 2001 (ST-1) in the gastrointestinal environment to understand how orally administered glutathione in ST-1 cells is delivered stably to the intestine in a reactive form, which is essential for its systemic bioavailability against lipid peroxidation. METHODS AND RESULTS Intracellular glutathione was labeled with L-cysteine-containing stable isotopes. ST-1 cells from fresh culture or lyophilized powder were treated with simulated gastric and intestinal juices for 60 min each. The release of intracellular glutathione in digestive juices was quantified via LC-MS/MS. Most of the cellular glutathione was retained in the gastric environment and released in response to exposure to the gastrointestinal environment. During digestion, the membrane permeability of propidium iodide increased significantly, especially when cells were exposed to cholate, without change in the cell wall state. CONCLUSIONS ST-1 cells act as vehicles to protect intracellular reactive components, such as glutathione, from digestive stress, and release them in the upper intestine owing to the disruption of membrane integrity induced by bile acid.
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Affiliation(s)
- Yu Yamamoto
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Koh Maki
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Shiro Kusuhara
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Wakae Yokoi
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Kaoru Tochiya
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Takekazu Okumura
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Masahiko Ito
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Kouji Miyazaki
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Katsuhisa Harada
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Akimitsu Takagi
- Yakult Central Institute, Food Research Department, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
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Lee M, Park J, Kim OK, Kim D, Han MJ, Kim SH, Kim TH, Lee J. Lactobacillus reuteri NCIMB 30242 (LRC) Inhibits Cholesterol Synthesis and Stimulates Cholesterol Excretion in Animal and Cell Models. J Med Food 2023; 26:529-539. [PMID: 37594559 DOI: 10.1089/jmf.2022.k.0137] [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] [Indexed: 08/19/2023] Open
Abstract
In this study, we evaluated the effects of Lactobacillus reuteri NCIMB (LRC™) supplementation on hypercholesterolemia by researching its effects on cellular cholesterol metabolism in hypercholesterolemic rats (KHGASP-22-170) and HepG2 cell line. Rats were separated into six groups after adaptation and were then fed a normal control (NC), a high-cholesterol diet (HC), or a HC supplemented with simvastatin 15 mg/kg body weight (positive control [PC]), LRC 1 × 109 colony-forming units (CFU)/rat/day, LRC 4 × 109 CFU/rat/day, or LRC 1 × 1010 CFU/rat/day (1 × 109, 4 × 109, or 1 × 1010). The rats were dissected to study the effects of LRC on cholesterol metabolism and intestinal excretion at the end of experimental period. We discovered that LRC mainly participated in the restraint of 3-hydroxy-3-methylglutaryl-coenzyme A (HMG-CoA) reductase, the uptake of low-density lipoprotein (LDL) cholesterol into tissues, partially in the transport of cholesteryl esters into high density lipoprotein for maturation, and intestinal excretion of cholesterol. These results are supported by the expression of transcription factors and enzymes such as HMG-CoA reductase, SREBP2, CYP7A1, CETP, and LCAT in both messenger RNA (mRNA) and protein levels in serum and hepatic tissue. Furthermore, the LRC treatment in HepG2 significantly reduced the mRNA expression of HMG-CoA reductase, SREBP2, and CEPT and significantly increased the mRNA expression of LDL-receptor, LCAT, and CYP7A1 at all doses. Hence, we suggest that LRC supplementation could alleviate the serum cholesterol level by inhibiting the intracellular cholesterol synthesis, and augmenting excretion of intestinal cholesterol.
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Affiliation(s)
- Minhee Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin, Korea
| | - Jeongjin Park
- Division of Food and Nutrition and Human Ecology Research Institute, Chonnam National University, Gwangju, Korea
| | - Ok-Kyung Kim
- Division of Food and Nutrition and Human Ecology Research Institute, Chonnam National University, Gwangju, Korea
| | - Dakyung Kim
- Department of Medical Nutrition, Kyung Hee University, Yongin, Korea
| | | | | | | | - Jeongmin Lee
- Department of Medical Nutrition, Kyung Hee University, Yongin, Korea
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Roux E, Nicolas A, Valence F, Siekaniec G, Chuat V, Nicolas J, Le Loir Y, Guédon E. The genomic basis of the Streptococcus thermophilus health-promoting properties. BMC Genomics 2022; 23:210. [PMID: 35291951 PMCID: PMC8925076 DOI: 10.1186/s12864-022-08459-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 03/08/2022] [Indexed: 12/20/2022] Open
Abstract
Background Streptococcus thermophilus is a Gram-positive bacterium widely used as starter in the dairy industry as well as in many traditional fermented products. In addition to its technological importance, it has also gained interest in recent years as beneficial bacterium due to human health-promoting functionalities. The objective of this study was to inventory the main health-promoting properties of S. thermophilus and to study their intra-species diversity at the genomic and genetic level within a collection of representative strains. Results In this study various health-related functions were analyzed at the genome level from 79 genome sequences of strains isolated over a long time period from diverse products and different geographic locations. While some functions are widely conserved among isolates (e.g., degradation of lactose, folate production) suggesting their central physiological and ecological role for the species, others including the tagatose-6-phosphate pathway involved in the catabolism of galactose, and the production of bioactive peptides and gamma-aminobutyric acid are strain-specific. Most of these strain-specific health-promoting properties seems to have been acquired via horizontal gene transfer events. The genetic basis for the phenotypic diversity between strains for some health related traits have also been investigated. For instance, substitutions in the galK promoter region correlate with the ability of some strains to catabolize galactose via the Leloir pathway. Finally, the low occurrence in S. thermophilus genomes of genes coding for biogenic amine production and antibiotic resistance is also a contributing factor to its safety status. Conclusions The natural intra-species diversity of S. thermophilus, therefore, represents an interesting source for innovation in the field of fermented products enriched for healthy components that can be exploited to improve human health. A better knowledge of the health-promoting properties and their genomic and genetic diversity within the species may facilitate the selection and application of strains for specific biotechnological and human health-promoting purpose. Moreover, by pointing out that a substantial part of its functional potential still defies us, our work opens the way to uncover additional health-related functions through the intra-species diversity exploration of S. thermophilus by comparative genomics approaches. Supplementary Information The online version contains supplementary material available at 10.1186/s12864-022-08459-y.
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Affiliation(s)
- Emeline Roux
- INRAE, Institut Agro, STLO, Rennes, France.,Université de Lorraine, CALBINOTOX, Nancy, France.,Université de Rennes, INRIA, Campus de Beaulieu, Rennes, France
| | | | | | - Grégoire Siekaniec
- INRAE, Institut Agro, STLO, Rennes, France.,Université de Rennes, INRIA, Campus de Beaulieu, Rennes, France
| | | | - Jacques Nicolas
- Université de Rennes, INRIA, Campus de Beaulieu, Rennes, France
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Evivie SE, Ogwu MC, Abdelazez A, Bian X, Liu F, Li B, Huo G. Suppressive effects of Streptococcus thermophilus KLDS 3.1003 on some foodborne pathogens revealed through in vitro, in vivo and genomic insights. Food Funct 2021; 11:6573-6587. [PMID: 32647845 DOI: 10.1039/d0fo01218a] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Foodborne diseases (FBDs) remain a persistent global challenge and recent research efforts suggest that lactic acid bacteria (LAB) strains can contribute towards their prevention and treatment. This study investigates the genetic properties of Streptococcus thermophilus KLDS 3.1003 as a potential probiotic and health-promoting LAB strain as well as its in vitro and in vivo activities against two foodborne pathogens. In vitro, its antimicrobial activities and tolerance levels in simulated bile salts and acids were determined. The cytotoxic effects of the LAB strain in RAW264.7 cells were also evaluated. For in vivo evaluation, 24 BALB/c mice were orally administered control and trial diets for 14 days. Genomic analyses of this strain's bacteriocin configuration, stress response system and multidrug resistance genes were annotated to validate in vitro and in vivo results. In vitro antimicrobial results show that the cells and CFS of S. thermophilus KLDS 3.1003 could inhibit both pathogens with the former being more effective (P < 0.05). In addition, its cell-free supernatant (CFS) could inhibit the growth of both pathogens, with catalase treatment having the highest effect against it. More so, after 3 h of incubation, survivability levels of S. thermophilus KLDS 3.1003 were significantly high (P < 0.05). LPS-induced RAW264.7 cell activities were also significantly reduced by 108-109 CFU mL-1 of S. thermophilus KLDS. In vivo, significant weight losses were inhibited in the TSTEC group compared to the TSTSA group (P < 0.05). Moreover, pathogen-disrupted blood biochemical parameters like HDL, LDL, TP, TG, AST, ALT and some minerals were restored in the respective prevention groups (TSTEC and TSTSA). Genomic analyses showed that S. thermophilus KLDS 3.1003 has bacteriocin-coding peptides, which accounts for its antimicrobial abilities in vitro and in vivo. S. thermophilus KLDS 3.1003 is also endowed with intact genes for acid tolerance, salt-resistance, cold and heat shock responses and antioxidant activities, which are required to promote activities against the selected foodborne pathogens. This study showed that S. thermophilus KLDS 3.1003 has the genomic capacity to inhibit foodborne pathogens' growth in vitro and in vivo, thus qualifying it as a potential probiotic, antimicrobial and bio-therapeutic candidate.
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Affiliation(s)
- Smith Etareri Evivie
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China. and Department of Animal Science, Faculty of Agriculture, University of Benin, Benin City 300001, Nigeria. and Department of Food Science and Human Nutrition, Faculty of Agriculture, University of Benin, Benin City 300001, Nigeria.
| | - Matthew Chidozie Ogwu
- School of Biosciences and Veterinary Medicine, University of Camerino 60232, Camerino Marche - Floristic Research Centre of the Apennine Gran Sasso and Monti della Laga National Park, San Colombo, 67021 Barisciano, L'Aquila, Italy. and Department of Plant Biology and Biotechnology, Faculty of Life Science, University of Benin, Benin City 300001, Nigeria.
| | - Amro Abdelazez
- Department of Dairy Microbiology, Animal Production Research Institute, Agricultural Research Centre, Dokki, Giza 12618, Egypt. and Institute of Microbe and Host Health, Linyi University, Linyi 276005, China.
| | - Xin Bian
- Department of Food Engineering, Harbin Commerce University, Harbin 150028, China.
| | - Fei Liu
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Bailiang Li
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China.
| | - Guicheng Huo
- Key Laboratory of Dairy Science, Ministry of Education, College of Food Science, Northeast Agricultural University, Harbin 150030, China.
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Wu C, Tian Y, Yu J, Zhang R, Zhang X, Guo P. The pandanus tectorius fruit extract (PTF) modulates the gut microbiota and exerts anti-hyperlipidaemic effects. PHYTOMEDICINE : INTERNATIONAL JOURNAL OF PHYTOTHERAPY AND PHYTOPHARMACOLOGY 2019; 58:152863. [PMID: 30836215 DOI: 10.1016/j.phymed.2019.152863] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/08/2019] [Accepted: 02/17/2019] [Indexed: 06/09/2023]
Abstract
BACKGROUND The gut microbiota plays a key role in the maintenance of human health and mediates the beneficial effects of natural products including polyphenols. Previous studies have demonstrated that the polyphenol-rich Pandanus tectorius fruit extract (PTF) was effective in ameliorating high-fat diet (HFD)-induced hyperlipidaemia, and polyphenols can significantly change the structure of the gut microbiota. PURPOSE In this study, we assessed whether the modulation of the gut microbiota plays a key role in the PTF-induced anti-hyperlipidaemic effects. METHODS Male C57BL/6 J mice were induced with hyperlipidaemia by consuming a high-fat diet (HFD) for 4 weeks. Then, the mice were orally administered PTF, antibiotics (ampicillin+ norfloxacin), PTF+antibiotics or vehicle for another 6 weeks. Body weights and 24-h food intake were assessed weekly. At the end of the experiment, fresh stools were collected for 16S RNA pyrosequencing, and blood and liver and fat tissue were collected for pharmacological analysis. RESULTS PTF was effective in ameliorating high-fat diet (HFD)-induced hyperlipidaemia and significantly changed the structure of the gut microbiota. However, the anti-hyperlipidaemic effect of PTF was not influenced by the co-treatment with antibiotics (ampicillin+norfloxacin). A microbiological analysis of the gut microbiotas revealed that PTF selectively enhanced the relative abundance of Lactobacillus and decreased the relative abundance of Bacteroides and Alistipes. A correlation analysis between biochemical indexes and individual taxon showed that Lactobacillus was negatively associated with serum lipids and glucose while Bacteroides and Alistipes were positively associated with serum lipids and glucose. The modulatory effect of PTF on Lactobacillus, Bacteroides and Alistipes was not disturbed by the administration of antibiotics. CONCLUSION These results demonstrated that the polyphenol-rich PTF as a unique gut microbiota modulating agent and highlighted the richness of Lactobacillus and the decreased abundance of Bacteroides and Alistipes as an effective indicator of the therapeutic effect of medicinal foods on hyperlipidaemia.
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Affiliation(s)
- Chongming Wu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
| | - Yu Tian
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Jiaqi Yu
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Rong Zhang
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China
| | - Xiaopo Zhang
- School of Pharmaceutical Science, Hainan Medical University, Hainan 571199, PR China
| | - Peng Guo
- Pharmacology and Toxicology Research Center, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100193, PR China.
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6
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Kusuhara S, Ito M, Sato T, Yokoi W, Yamamoto Y, Harada K, Ikemura H, Miyazaki K. Intracellular GSH of Streptococcus thermophilus shows anti-oxidative activity against low-density lipoprotein oxidation in vitro and in a hyperlipidaemic hamster model. Benef Microbes 2018; 9:143-152. [DOI: 10.3920/bm2017.0065] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Streptococcus thermophilus YIT 2001 (ST-1), a lactic acid bacterial strain, was shown to have inhibitory effects on the oxidation of low-density lipoprotein (LDL) and the development of aortic fatty lesions in an animal model, and lower the serum levels of malondialdehyde-modified LDL, an oxidative modification product of LDL, in a clinical trial. This study aimed to identify the intracellular active component of ST-1 associated with anti-oxidative activity against LDL oxidation. High-performance liquid chromatography-electrospray ionisation mass spectrometry analysis after fractionation of the cellular extract by reversed-phase chromatography demonstrated that the active fraction contained reduced glutathione (GSH). GSH showed anti-oxidative activity in a dose-dependent manner, while this activity disappeared following thiol derivatisation. ST-1 had the strongest anti-oxidative activity against LDL oxidation and the highest level of intracellular GSH among five strains of S. thermophilus. In addition, the anti-oxidative activity of ST-1 after thiol derivatisation decreased by about half, which was similar to that of three other strains containing poor or no intracellular GSH or thiol components. Moreover, anti-oxidative activity against LDL oxidation was observed in hyperlipidaemic hamsters fed with high GSH ST-1 cells but not in those given low GSH cells. These findings suggest that intracellular GSH in ST-1 may provide beneficial effects via anti-oxidative activity against LDL oxidation and excess oxidative stress in the blood.
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Affiliation(s)
- S. Kusuhara
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - M. Ito
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - T. Sato
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - W. Yokoi
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - Y. Yamamoto
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K. Harada
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - H. Ikemura
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
| | - K. Miyazaki
- Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo 186-8650, Japan
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7
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Streptococcus thermophilus: From yogurt starter to a new promising probiotic candidate? J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.07.038] [Citation(s) in RCA: 60] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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8
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Ito M, Kusuhara S, Yokoi W, Sato T, Ishiki H, Miida S, Matsui A, Nakamori K, Nonaka C, Miyazaki K. Streptococcus thermophilus fermented milk reduces serum MDA-LDL and blood pressure in healthy and mildly hypercholesterolaemic adults. Benef Microbes 2017; 8:171-178. [PMID: 28299944 DOI: 10.3920/bm2016.0102] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
Low-density lipoprotein (LDL)-cholesterol, malondialdehyde-modified low-density lipoprotein (MDA-LDL), MDA-LDL/LDL-cholesterol in serum, and blood pressure are considered useful risk markers of cardiovascular diseases. This study aimed to examine whether a fermented milk containing Streptococcus thermophilus YIT 2001 (ST), which has high anti-oxidative activity, would benefit healthy and mildly hyper-LDL-cholesterolaemic adults via a randomised, double-blind, placebo-controlled trial. ST-fermented milk or non-fermented placebo milk (PC) was consumed once a day for 12 weeks by 29 and 30 subjects, respectively, with average serum LDL-cholesterol levels of about 140 mg/dl. Serum levels of LDL-cholesterol and MDA-LDL and blood pressure were analysed before (baseline) and after consumption. Comparisons of the responses between both groups were assessed using analysis of covariance (ANCOVA, with the baseline value as the covariate). ANCOVA demonstrated that the ST group had significant reductions in MDA-LDL, MDA-LDL/LDL-cholesterol, systolic blood pressure (SBP), and diastolic blood pressure (DBP) compared with the PC group during the consumption period (P<0.05). Moreover, stratified analysis revealed that there were significant reductions in MDA-LDL, MDA-LDL/LDL-cholesterol, SBP, and DBP in the ST group compared with the PC group during the consumption period in subjects who had above median (65 U/l) levels of oxidative stress marker MDA-LDL at baseline (P<0.05), but not in subjects with levels below the median. These findings suggest that daily consumption of ST-fermented milk may be beneficial in healthy or mildly hyper-LDL cholesterolaemic subjects through reductions in risk marker values of oxidative stress and/or cardiovascular diseases. The benefits were particularly remarkable in subjects who had higher levels of MDA-LDL.
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Affiliation(s)
- M Ito
- 1 Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, 186-8650 Japan
| | - S Kusuhara
- 1 Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, 186-8650 Japan
| | - W Yokoi
- 1 Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, 186-8650 Japan
| | - T Sato
- 1 Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, 186-8650 Japan
| | - H Ishiki
- 2 2Development Department, Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo, 105-8660 Japan
| | - S Miida
- 2 2Development Department, Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo, 105-8660 Japan
| | - A Matsui
- 2 2Development Department, Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo, 105-8660 Japan
| | - K Nakamori
- 2 2Development Department, Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo, 105-8660 Japan
| | - C Nonaka
- 2 2Development Department, Yakult Honsha Co., Ltd., 1-1-19 Higashi-shinbashi, Minato-ku, Tokyo, 105-8660 Japan
| | - K Miyazaki
- 1 Yakult Central Institute, 5-11 Izumi, Kunitachi-shi, Tokyo, 186-8650 Japan
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Li HL, Li ZJ, Wei ZS, Liu T, Zou XZ, Liao Y, Luo Y. Long-term effects of oral tea polyphenols and Lactobacillus brevis M8 on biochemical parameters, digestive enzymes, and cytokines expression in broilers. J Zhejiang Univ Sci B 2016; 16:1019-26. [PMID: 26642185 DOI: 10.1631/jzus.b1500160] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
This study investigates the long-term effects of oral tea polyphenols (TPs) and Lactobacillus brevis M8 (LB) on biochemical parameters, digestive enzymes, and cytokines expression in broilers. In experiment 1, 240 broiler chickens were selected to investigate the effects of 0.06 g/kg body weight (BW) TP and 1.0 ml/kg BW LB on broilers; in experiment 2, 180 broiler chickens were assigned randomly to three groups to investigate the effects of different dosages of TP (0.03, 0.06, and 0.09 g/kg BW) combined with 1.0 ml/kg BW LB on broilers; in experiment 3, 180 broiler chickens were assigned randomly to three groups to investigate the effects of different dosages of LB (0.5, 1.0, and 1.5 ml/kg BW) combined with 0.06 g/kg BW TP on broilers. The results showed that TP and LB affected serum biochemical parameters, and TP reduced serum cholesterol (CHO) and low-density lipoprotein cholesterol (LDL-C) abundances in a dosage-dependent manner (P<0.05) on Day 84. Meanwhile, broilers fed a diet supplemented with TP or LB had a lower intestinal lipase activity on Day 84 compared with the control group (P<0.05). Middle and high dosages of TP increased pancreatic lipase and proventriculus pepsin activities (P<0.05). Also middle and high dosages of LB significantly enhanced pancreatic lipase activity (P<0.05), while high LB supplementation inhibited intestinal trypsase (P<0.05) on Day 84. Furthermore, both TP and LB reduced intestinal cytokine expression and nuclear factor-κ B (NF-κB) mRNA level on Days 56 and 84. In conclusion, long-term treatment of TP and LB improved lipid metabolism and digestive enzymes activities, and affected intestinal inflammatory status, which may be associated with the NF-κB signal.
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Affiliation(s)
- Hua-li Li
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Zong-jun Li
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China.,National Research Center of Engineering Technology for Utilization of Functional Ingredients from Botanicals, Changsha 410128, China
| | - Zhong-shan Wei
- Hunan Institute of Animal and Veterinary Science, Changsha 410131, China
| | - Ting Liu
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Xiao-zuo Zou
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Yong Liao
- Hunan Provincial Key Laboratory of Food Science and Biotechnology, College of Food Science and Technology, Hunan Agricultural University, Changsha 410128, China
| | - Yu Luo
- Hunan Institute of Animal and Veterinary Science, Changsha 410131, China
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