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Wang Z, Li D, Chen M, Yu X, Chen C, Chen Y, Zhang L, Shu Y. A comprehensive study on the regulation of Compound Zaoren Granules on cAMP/CREB signaling pathway and metabolic disorder in CUMS-PCPA induced insomnia rats. JOURNAL OF ETHNOPHARMACOLOGY 2024; 332:118401. [PMID: 38815875 DOI: 10.1016/j.jep.2024.118401] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/06/2024] [Revised: 05/07/2024] [Accepted: 05/27/2024] [Indexed: 06/01/2024]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Compound Zaoren Granules (CZG), an optimized herbal formulation based on the traditional Chinese medicine prescription Suanzaoren decoction, are designed specifically for insomnia treatment. However, the mechanisms underlying its efficacy in treating insomnia are not yet fully understood. AIM OF THE STUDY The research investigated the mechanisms of CZG's improvement in insomnia by regulating cAMP/CREB signaling pathway and metabolic profiles. METHODS The main components of CZG were characterized by liquid chromatography-mass spectrometry (LC-MS). Subsequently, these validated components were applied to network pharmacological analysis to predict signaling pathways associated with insomnia. We evaluated the effect of CZG on BV-2 cells in vitro. We also evaluated the behavioral indexes of CUMS combined with PCPA induced insomnia in rats. HE staining and Nissl staining were used to observe the pathological damage of hippocampus. ELISA was used to detect the levels of various neurotransmitters, orexins, HPA axis, and inflammatory factors in insomnia rats. Then we detected the expression of cAMP/CREB signaling pathway through ELISA, WB, and IHC. Finally, the metabolomics was further analyzed by using UHPLC-QTOF-MS/MS to investigate the changes in the hippocampus of insomnia rats and the possible metabolic pathways were also speculated. RESULTS The results of CZG in vitro experiments showed that CZG has protective and anti-inflammatory effects on LPS induced BV-2 cells. A total of 161 chemical components were identified in CZG. After conducting network pharmacology analysis through these confirmed components, we select the cAMP/CREB signaling pathway for further investigate. The behavioral research results on insomnia rats showed that CZG significantly prolonged sleep time, mitigated brain tissue pathological damage, and exhibited liver protective properties. CZG treats insomnia by regulating the content of various neurotransmitters, reducing levels of orexin, HPA axis, and inflammatory factors. It can also treat insomnia by upregulating the expression of the cAMP/CREB signaling pathway. Hippocampus metabolomics analysis identified 69 differential metabolites associated with insomnia. The metabolic pathways related to these differential metabolites have also been predicted. CONCLUSION These results indicate that CZG can significantly prolong sleep time. CZG is used to treat insomnia by regulating various neurotransmitters, HPA axis, inflammatory factors, cAMP/CREB signaling pathways, and metabolic disorders.
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Affiliation(s)
- Zekun Wang
- Affiliated Hospital of Nanjing University of Chinese Medicine & Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Danting Li
- Affiliated Hospital of Nanjing University of Chinese Medicine & Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China; Key laboratory for Metabolic Diseases in Chinese Medicine, First College of Clinical Medicine Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Min Chen
- Affiliated Hospital of Nanjing University of Chinese Medicine & Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Xiaocong Yu
- Affiliated Hospital of Nanjing University of Chinese Medicine & Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China
| | - Chen Chen
- Nanjing Women and Children's Healthcare Hospital, 210029, China
| | - Yajun Chen
- Nanjing Women and Children's Healthcare Hospital, 210029, China
| | - Lingfeng Zhang
- School of Traditional Chinese Medicine, China Pharmaceutical University, Nanjing, 211198, China
| | - Yachun Shu
- Affiliated Hospital of Nanjing University of Chinese Medicine & Jiangsu Province Hospital of Chinese Medicine, Nanjing, 210029, China; Jiangsu Province Seaside Rehabilitation Hospital, Lianyungang, 222042, China.
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Varghese A, Gusarov I, Gamallo-Lana B, Dolgonos D, Mankan Y, Shamovsky I, Phan M, Jones R, Gomez-Jenkins M, White E, Wang R, Jones D, Papagiannakopoulos T, Pacold ME, Mar AC, Littman DR, Nudler E. Unraveling cysteine deficiency-associated rapid weight loss. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.30.605703. [PMID: 39131293 PMCID: PMC11312522 DOI: 10.1101/2024.07.30.605703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/13/2024]
Abstract
Forty percent of the US population and 1 in 6 individuals worldwide are obese, and the incidence of this disease is surging globally1,2. Various dietary interventions, including carbohydrate and fat restriction, and more recently amino acid restriction, have been explored to combat this epidemic3-6. We sought to investigate the impact of removing individual amino acids on the weight profiles of mice. Compared to essential amino acid restriction, induction of conditional cysteine restriction resulted in the most dramatic weight loss, amounting to 20% within 3 days and 30% within one week, which was readily reversed. This weight loss occurred despite the presence of substantial cysteine reserves stored in glutathione (GSH) across various tissues7. Further analysis demonstrated that the weight reduction primarily stemmed from an increase in the utilization of fat mass, while locomotion, circadian rhythm and histological appearance of multiple other tissues remained largely unaffected. Cysteine deficiency activated the integrated stress response (ISR) and NRF2-mediated oxidative stress response (OSR), which amplify each other, leading to the induction of GDF15 and FGF21, hormones associated with increased lipolysis, energy homeostasis and food aversion8-10. We additionally observed rapid tissue coenzyme A (CoA) depletion, resulting in energetically inefficient anaerobic glycolysis and TCA cycle, with sustained urinary excretion of pyruvate, orotate, citrate, α-ketoglutarate, nitrogen rich compounds and amino acids. In summary, our investigation highlights that cysteine restriction, by depleting GSH and CoA, exerts a maximal impact on weight loss, metabolism, and stress signaling compared to other amino acid restrictions. These findings may pave the way for innovative strategies for addressing a range of metabolic diseases and the growing obesity crisis.
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Affiliation(s)
- Alan Varghese
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Ivan Gusarov
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Begoña Gamallo-Lana
- Department of Neuroscience and Physiology, Neuroscience Institute, NYU School of Medicine, New York, NY 10016, USA
| | - Daria Dolgonos
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Yatin Mankan
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Ilya Shamovsky
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Mydia Phan
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Rebecca Jones
- Division of Advanced Research Technologies, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Maria Gomez-Jenkins
- Rutgers Cancer Institute, Rutgers University, New Brunswick, NJ 08901, USA and Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08854, USA
| | - Eileen White
- Rutgers Cancer Institute, Rutgers University, New Brunswick, NJ 08901, USA and Department of Molecular Biology and Biochemistry, Rutgers University, Piscataway, NJ 08854, USA
- Ludwig Princeton Branch, Ludwig Institute for Cancer Research, Princeton University, Princeton, NJ 08544, USA
| | - Rui Wang
- Department of Biology, York University, Toronto, Ontario, M3J 1P3, Canada
| | - Drew Jones
- Division of Advanced Research Technologies, NYU Grossman School of Medicine, New York, NY 10016, USA
| | - Thales Papagiannakopoulos
- Department of Pathology, Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, NY 10016, USA
| | - Michael E Pacold
- Department of Radiation Oncology and Laura and Isaac Perlmutter Cancer Center, NYU Langone Health, New York, New York, NY 10016, USA
| | - Adam C Mar
- Department of Neuroscience and Physiology, Neuroscience Institute, NYU School of Medicine, New York, NY 10016, USA
| | - Dan R Littman
- Department of Cell Biology, NYU Grossman School of Medicine, New York, NY 10016, USA
- Howard Hughes Medical Institute, New York, NY 10016, USA
| | - Evgeny Nudler
- Department of Biochemistry and Molecular Pharmacology, NYU Grossman School of Medicine, New York, NY 10016, USA
- Howard Hughes Medical Institute, New York, NY 10016, USA
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3
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Kim DK, Rajan P, Cuong DM, Choi JH, Yoon TH, Go GM, Lee JW, Noh SW, Choi HK, Cho SK. Melosira nummuloides Ethanol Extract Ameliorates Alcohol-Induced Liver Injury by Affecting Metabolic Pathways. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:8476-8490. [PMID: 38588403 DOI: 10.1021/acs.jafc.3c06261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/10/2024]
Abstract
Melosira nummuloides is a microalga with a nutritionally favorable polyunsaturated fatty acid profile. In the present study, M. nummuloides ethanol extract (MNE) was administered to chronic-binge alcohol-fed mice and alcohol-treated HepG2 cells, and its hepatoprotective effects and underlying mechanisms were investigated. MNE administration reduced triglyceride (TG), total cholesterol (T-CHO), and liver injury markers, including aspartate transaminase (AST) and alanine transaminase (ALT), in the serum of chronic-binge alcohol-fed mice. However, MNE administration increased the levels of phosphorylated adenosine monophosphate-activated protein kinase (P-AMPK/AMPK) and PPARα, which was accompanied by a decrease in SREBP-1; this indicates that MNE can inhibit adipogenesis and improve fatty acid oxidation. Moreover, MNE administration upregulated the expression of antioxidant enzymes, including SOD, NAD(P)H quinone dehydrogenase 1, and GPX, and ameliorated alcohol-induced inflammation by repressing the Akt/NFκB/COX-2 pathway. Metabolomic analysis revealed that MNE treatment modulated many lipid metabolites in alcohol-treated HepG2 cells. Our study findings provide evidence for the efficacy and mechanisms of MNE in ameliorating alcohol-induced liver injury.
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Affiliation(s)
- Dae Kyeong Kim
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Priyanka Rajan
- Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Republic of Korea
| | - Do Manh Cuong
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea
| | - Jae Ho Choi
- Inflamm-Aging Translational Research Center, Ajou University Medical Center, Suwon 16499, Republic of Korea
| | - Tae Hyeon Yoon
- College of Applied Life Sciences, SARI, Jeju National University, Jeju 63243, Republic of Korea
| | - Gyung Min Go
- JDKBIO lnc., Jeju-si, Jeju 63023, Republic of Korea
| | - Ji Won Lee
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Soon-Wook Noh
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Hyung-Kyoon Choi
- College of Pharmacy, Chung-Ang University, Seoul 06974, Republic of Korea
| | - Somi Kim Cho
- Interdisciplinary Graduate Program in Advanced Convergence Technology and Science, Jeju National University, Jeju 63243, Republic of Korea
- Subtropical/Tropical Organism Gene Bank, Jeju National University, Jeju 63243, Republic of Korea
- College of Applied Life Sciences, Jeju National University, Jeju 63243, Republic of Korea
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Yi C, Liang H, Xu G, Zhu J, Wang Y, Li S, Ren M, Chen X. Appropriate dietary phenylalanine improved growth, protein metabolism and lipid metabolism, and glycolysis in largemouth bass (Micropterus salmoides). FISH PHYSIOLOGY AND BIOCHEMISTRY 2024; 50:349-365. [PMID: 36367675 DOI: 10.1007/s10695-022-01138-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2022] [Accepted: 10/30/2022] [Indexed: 06/16/2023]
Abstract
The purpose of this study was aimed to determine the appropriate level of dietary phenylalanine and explored the influences of phenylalanine on target rapamycin (TOR) signaling and glucose and lipid metabolism in largemouth bass. Six isonitrogenous/isoenergetic diets with graded phenylalanine levels (1.45% (control group), 1.69%, 1.98%, 2.21%, 2.48%, and 2.76%) were designed. Experimental feed was used to feed juvenile largemouth bass (initial body weight 19.5 ± 0.98 g) for 8 weeks. The final body weight, specific growth rate (SGR), feed efficiency ratio (FER), and weight gain (WG) reached their highest values in the 1.98% dietary phenylalanine group and then declined with increasing phenylalanine addition. No significant difference was found in the whole-body composition of largemouth bass between different dietary phenylalanine groups. Compared with the control group, 1.69% dietary phenylalanine significantly reduced the contents of plasma glucose (GLU) and total protein (TP), and total cholesterol (TC) contents increased significantly in the 1.98% dietary phenylalanine group (P < 0.05). The key gene expressions of TOR signaling pathway and lipid metabolism was significantly inhibited by 2.21% dietary phenylalanine (P < 0.05). The 1.98% dietary phenylalanine group showed significantly increased expression of genes related to insulin signaling pathway and factors involved in fatty acid synthesis (P < 0.05). Furthermore, 2.76% dietary phenylalanine group inhibited glucose metabolism by lowering the key gene expressions of glucose metabolism (P < 0.05). According to quadratic regression analyses based on the WG and FER, the appropriate level of dietary phenylalanine for largemouth bass were 2.00% and 2.02% of the diet (4.23% and 4.27% dietary protein), respectively, with a constant amount of tyrosine (1.33%). Hence, the total aromatic amino acid requirements were 3.33% and 3.35% of the diet (equivalent to 7.03% and 7.09% of the protein content), which may provide a theoretical basis for the development of largemouth bass feed formulas. Therefore, the growth and metabolism of largemouth bass could be promoted by controlling the content of phenylalanine in the diet, or the imbalance of phenylalanine can form a specific pathological model.
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Affiliation(s)
- Changguo Yi
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 21408, Jiangsu, China
| | - Hualiang Liang
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Gangchun Xu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 21408, Jiangsu, China
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Jian Zhu
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 21408, Jiangsu, China
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China
| | - Yongli Wang
- Tongwei Agricultural Development Co., LTD., Chengdu, 610093, China
| | - Songlin Li
- Research Centre of the Ministry of Agriculture and Rural Affairs On Environmental Ecology and Fish Nutrition, Shanghai Ocean University, Shanghai, 201306, China
| | - Mingchun Ren
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, 21408, Jiangsu, China.
- Key Laboratory of Integrated Rice-Fish Farming Ecology, Ministry of Agriculture and Rural Affairs, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, 214081, China.
| | - Xiaoru Chen
- Tongwei Agricultural Development Co., LTD., Chengdu, 610093, China.
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Moin N, Thakur RS, Singh S, Patel DK, Satish A. β-triketone herbicide exposure cause tyrosine and fat accumulation in Caenorhabditis elegans. CHEMOSPHERE 2023; 326:138353. [PMID: 36914009 DOI: 10.1016/j.chemosphere.2023.138353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/07/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
β-triketone herbicides have been efficiently employed as an alternate to atrazine. Triketones are 4-hydroxyphenylpyruvate dioxygenase (HPPD) enzyme inhibitors and exposure is reported to cause significant increase in plasma tyrosine levels. In this study, we have employed a non-target organism Caenorhabditis elegans to determine the impact of β-triketone exposures at recommended field doses (RfD). Our results indicate sulcotrione and mesotrione, negatively influence the survival, behavior, and reproduction of the organism at RfD. Additionally, we have traced the parallels regarding the impact of triketones on the tyrosine metabolism pathway, in C. elegans to those in mammalian models, wherein the expression of the tyrosine metabolism pathway genes are altered, directly influencing tyrosine catabolism leading to significant tyrosine accumulation in exposed organism. Further, we investigated the impact of sulcotrione and mesotrione exposure on fat deposition (triglyceride levels, Oil-Red-O staining and lipidomics) and the fatty acid metabolism pathway. In the exposed worms, the expression of enlongases and fatty acid desaturases were up-regulated along with an increase in the levels of triglycerides. Thus, the data indicates a positive association of β-triketone exposure to mis-regulation of the fatty acid metabolism pathway genes leading to fat accumulation in worms. Therefore, β-triketone might be a potential obesogen.
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Affiliation(s)
- Nida Moin
- Ecotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India; Department of Biochemistry, Babu Banarasi Das University, Lucknow, 227015, India
| | - Ravindra Singh Thakur
- Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow, 226001, India
| | - Swati Singh
- Ecotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India
| | - Devendra Kumar Patel
- Analytical Chemistry Laboratory, Regulatory Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow, 226001, India
| | - Aruna Satish
- Ecotoxicology Laboratory, Environmental Toxicology Group, CSIR-Indian Institute of Toxicology Research (CSIR-IITR), Vishvigyan Bhavan, 31, Mahatma Gandhi Marg, Lucknow, 226001, Uttar Pradesh, India.
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Lee LMY, Lin ZQ, Zheng LX, Tu YF, So YH, Zheng XH, Feng TJ, Wang XY, Wong WT, Leung YC. Lysine Deprivation Suppresses Adipogenesis in 3T3-L1 Cells: A Transcriptome Analysis. Int J Mol Sci 2023; 24:ijms24119402. [PMID: 37298352 DOI: 10.3390/ijms24119402] [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: 04/06/2023] [Revised: 05/21/2023] [Accepted: 05/26/2023] [Indexed: 06/12/2023] Open
Abstract
Growing evidence proves that amino acid restriction can reverse obesity by reducing adipose tissue mass. Amino acids are not only the building blocks of proteins but also serve as signaling molecules in multiple biological pathways. The study of adipocytes' response to amino acid level changes is crucial. It has been reported that a low concentration of lysine suppresses lipid accumulation and transcription of several adipogenic genes in 3T3-L1 preadipocytes. However, the detailed lysine-deprivation-induced cellular transcriptomic changes and the altered pathways have yet to be fully studied. Here, using 3T3-L1 cells, we performed RNA sequencing on undifferentiated and differentiated cells, and differentiated cells under a lysine-free environment, and the data were subjected to KEGG enrichment. We found that the differentiation process of 3T3-L1 cells to adipocytes required the large-scale upregulation of metabolic pathways, mainly on the mitochondrial TCA cycle, oxidative phosphorylation, and downregulation of the lysosomal pathway. Single amino acid lysine depletion suppressed differentiation dose dependently. It disrupted the metabolism of cellular amino acids, which could be partially reflected in the changes in amino acid levels in the culture medium. It inhibited the mitochondria respiratory chain and upregulated the lysosomal pathway, which are essential for adipocyte differentiation. We also noticed that cellular interleukin 6 (IL6) expression and medium IL6 level were dramatically increased, which was one of the targets for suppressing adipogenesis induced by lysine depletion. Moreover, we showed that the depletion of some essential amino acids such as methionine and cystine could induce similar phenomena. This suggests that individual amino acid deprivation may share some common pathways. This descriptive study dissects the pathways for adipogenesis and how the cellular transcriptome was altered under lysine depletion.
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Affiliation(s)
- Leo Man-Yuen Lee
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Zhi-Qiang Lin
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Lu-Xi Zheng
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Yi-Fan Tu
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Department of Obstetrics and Gynecology, The Chinese University of Hong Kong, New Territory, Hong Kong, China
| | - Yik-Hing So
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Xiu-Hua Zheng
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Tie-Jun Feng
- School of Biomedical Science, The Chinese University of Hong Kong, Shatin, New Territory, Hong Kong, China
| | - Xi-Yue Wang
- Shenzhen Research Institute, The Hong Kong Polytechnic University, Shenzhen 518000, China
| | - Wai-Ting Wong
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
| | - Yun-Chung Leung
- Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
- Lo Ka Chung Research Centre for Natural Anti-Cancer Drug Development and State Key Laboratory of Chemical Biology and Drug Discovery, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, China
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Hope DCD, Tan TMM. Glucagon and energy expenditure; Revisiting amino acid metabolism and implications for weight loss therapy. Peptides 2023; 162:170962. [PMID: 36736539 DOI: 10.1016/j.peptides.2023.170962] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/26/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023]
Abstract
Glucagon receptor (GCGR)-targeted multi-agonists are being developed for the treatment of obesity and metabolic disease. GCGR activity is utilised for its favourable weight loss and metabolic properties, including increased energy expenditure (EE) and hepatic lipid metabolism. GLP1R and GIPR activities are increasingly present in a multi-agonist strategy. Due to the compound effect of increased satiety, reduced food intake and increased energy expenditure, the striking weight loss effects of these multi-agonists has been demonstrated in pre-clinical models of obesity. The precise contribution and mechanism of GCGR activity to enhanced energy expenditure and weight loss in both rodents and humans is not fully understood. In this review, our understanding of glucagon-mediated EE is explored, and an amino acid-centric paradigm contributing to this phenomenon is presented. The current progress of GCGR-targeted multi-agonists in development is also highlighted with a focus on the implications of glucagon-stimulated hypoaminoacidemia.
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Affiliation(s)
- D C D Hope
- Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom
| | - T M-M Tan
- Division of Diabetes, Endocrinology and Metabolism, Department of Metabolism, Digestion and Reproduction, Imperial College London, London, United Kingdom.
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Essential Amino Acids-Rich Diet Decreased Adipose Tissue Storage in Adult Mice: A Preliminary Histopathological Study. Nutrients 2022; 14:nu14142915. [PMID: 35889872 PMCID: PMC9316883 DOI: 10.3390/nu14142915] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2022] [Revised: 07/11/2022] [Accepted: 07/13/2022] [Indexed: 11/16/2022] Open
Abstract
Background: Excess body adipose tissue accumulation is a common and growing health problem caused by an unbalanced diet and/or junk food. Although the effects of dietary fat and glucose on lipid metabolism regulation are well known, those of essential amino acids (EAAs) have been poorly investigated. Our aim was to study the influence of a special diet containing all EAAs on retroperitoneal white adipose tissue (rpWAT) and interscapular brown adipose tissue (BAT) of mice. Methods: Two groups of male Balb/C mice were used. The first was fed with a standard diet. The second was fed with an EAAs-rich diet (EAARD). After 3 weeks, rpWAT and BAT were removed and prepared for subsequent immunohistochemical analysis. Results: EAARD, although consumed significantly less, moderately reduced body weight and BAT, but caused a massive reduction in rpWAT. Conversely, the triceps muscle increased in mass. In rpWAT, the size of adipocytes was very small, with increases in leptin, adiponectin and IL-6 immunostaining. In BAT, there was a reduction in lipid droplet size and a simultaneous increase in UCP-1 and SIRT-3. Conclusions: A diet containing a balanced mixture of free EAA may modulate body adiposity in mice, promoting increased thermogenesis.
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Gao J, Ma L, Ma J, Xia S, Gong S, Yin Y, Chen Y. Camellia ( Camellia oleifera Abel.) Seed Oil Regulating of Metabolic Phenotype and Alleviates Dyslipidemia in High Fat-Fed Mice through Serum Branch-Chain Amino Acids. Nutrients 2022; 14:nu14122424. [PMID: 35745155 PMCID: PMC9228151 DOI: 10.3390/nu14122424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/08/2022] [Accepted: 06/08/2022] [Indexed: 02/01/2023] Open
Abstract
Camellia (Camellia oleifera Abel.) seed oil (CO) has been shown to effectively reduce the blood lipid level of its host due to its fatty acid content, but the specific molecular mechanism associated with the metabolic phenotype after digestion is not clear. Here, we further investigated the relationship between branched-chain amino acids (BCAA) and the metabolic phenotype that may exhibit the anti-dyslipidemia effect of CO on mice fed a high-fat diet for 30 day C57BL/6J male mice were allocated to three groups: the control group (Cont), the high-fat feed group (HFD), and a high-fat feed group with CO treatment (CO). A serum sample was collected to detect lipid biomarkers and BCAA concentration. Notably, Low-density lipoprotein (LDL), Total Cholesterol (TC), and Triglycerides (TG) showed a significant decrease, whereas High-density lipoprotein (HDL) increased in CO mice but not in the HFD group. The concentration of Isoleucine (Ile), leucine (Leu), and valine (Val) was similar between the Cont and CO groups compared with the HFD group, exhibiting an inhibition induced by CO in mice fed with a high-fat diet. A metabolic phenotype from serum examined by non-targeted metabolite analysis using UHPLC/MS showed most metabolites exhibited lipid and BCAA metabolism. The results indicated that CO treatment notably regulated the metabolism of arachidonic acid and steroid biosynthesis in response to HFD-induced dyslipidemia. In addition, the expression of PPARγ genes that correlated with the BCAA and serum lipid biomarkers were compared, and significant inhibition was noticed, which might lead to the potential exposure of the anti-dyslipidemia mechanism of CO in HFD-fed mice. In conclusion, the expression of PPARγ genes, serum lipid level, BCAA concentration, and the metabolic phenotype was significantly positive in correlation with a high-fat diet, whereas oral CO improved the biomarkers and metabolism of some specific serum metabolites in HFD-fed mice.
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Affiliation(s)
- Jing Gao
- Research Institute of Oil Tea Camellia, Hunan Academy of Forestry, Shao Shan South Road, No. 658, Changsha 410004, China; (J.G.); (L.M.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410004, China
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
| | - Li Ma
- Research Institute of Oil Tea Camellia, Hunan Academy of Forestry, Shao Shan South Road, No. 658, Changsha 410004, China; (J.G.); (L.M.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410004, China
| | - Jie Ma
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
| | - Siting Xia
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
| | - Saiming Gong
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
| | - Yulong Yin
- Key Laboratory of Agro-Ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, Changsha 410125, China
- College of Animal Science and Technology, Hunan Co-Innovation Center of Animal Production Safety, Hunan Agricultural University, Changsha 410127, China; (J.M.); (S.X.); (S.G.)
- Correspondence: (Y.Y.); (Y.C.)
| | - Yongzhong Chen
- Research Institute of Oil Tea Camellia, Hunan Academy of Forestry, Shao Shan South Road, No. 658, Changsha 410004, China; (J.G.); (L.M.)
- National Engineering Research Center for Oil Tea Camellia, Changsha 410004, China
- Correspondence: (Y.Y.); (Y.C.)
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Abstract
BACKGROUND Obesity develops due to an imbalance in energy homeostasis, wherein energy intake exceeds energy expenditure. Accumulating evidence shows that manipulations of dietary protein and their component amino acids affect the energy balance, resulting in changes in fat mass and body weight. Amino acids are not only the building blocks of proteins but also serve as signals regulating multiple biological pathways. SCOPE OF REVIEW We present the currently available evidence regarding the effects of dietary alterations of a single essential amino acid (EAA) on energy balance and relevant signaling mechanisms at both central and peripheral levels. We summarize the association between EAAs and obesity in humans and the clinical use of modifying the dietary EAA composition for therapeutic intervention in obesity. Finally, similar mechanisms underlying diets varying in protein levels and diets altered of a single EAA are described. The current review would expand our understanding of the contribution of protein and amino acids to energy balance control, thus helping discover novel therapeutic approaches for obesity and related diseases. MAJOR CONCLUSIONS Changes in circulating EAA levels, particularly increased branched-chain amino acids (BCAAs), have been reported in obese human and animal models. Alterations in dietary EAA intake result in improvements in fat and weight loss in rodents, and each has its distinct mechanism. For example, leucine deprivation increases energy expenditure, reduces food intake and fat mass, primarily through regulation of the general control nonderepressible 2 (GCN2) and mammalian target of rapamycin (mTOR) signaling. Methionine restriction by 80% decreases fat mass and body weight while developing hyperphagia, primarily through fibroblast growth factor 21 (FGF-21) signaling. Some effects of diets with different protein levels on energy homeostasis are mediated by similar mechanisms. However, reports on the effects and underlying mechanisms of dietary EAA imbalances on human body weight are few, and more investigations are needed in future.
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Affiliation(s)
- Fei Xiao
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Innovation Center for Intervention of Chronic Disease and Promotion of Health, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China
| | - Feifan Guo
- CAS Key Laboratory of Nutrition, Metabolism and Food Safety, Innovation Center for Intervention of Chronic Disease and Promotion of Health, Shanghai Institute of Nutrition and Health, University of Chinese Academy of Sciences, Chinese Academy of Sciences, China; Shanghai Jiao Tong University Affiliated Sixth People's Hospital, China.
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11
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Punicalagin and Ketogenic Amino Acids Loaded Organic Lipid Carriers Enhance the Bioavailability, Mitochondrial β-Oxidation, and Ketogenesis in Maturing Adipocytes. NANOMATERIALS 2022; 12:nano12030368. [PMID: 35159714 PMCID: PMC8839784 DOI: 10.3390/nano12030368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2021] [Revised: 12/21/2021] [Accepted: 01/04/2022] [Indexed: 01/30/2023]
Abstract
The identification of lipolytic bioactive compounds via the functional stimulation of carbohydrate response element-binding protein-1 (CREBp-1) and AMP-activated protein kinase (AMPK) is most warranted. Nano lipid carriers (NLCs) are currently being considered within drug delivery development as they facilitate controlled drug release and have intracellular bioavailability after encapsulating the active principles with lipid matrix. The present study has been designed to synthesize punicalagin, and ketogenic amino acids (KAA) loaded with organic lipid carriers to optimize the liposome-assisted intracellular delivery’s bioavailability. Punicalagin (PUNI) and KAA (tryptophan, methionine, threonine, lysine, and leucine) were encapsulated with chia seed phospholipids by homogenization, emulsification, and cold ultra-sonication method to obtain nano lipid carriers (NLC). The physicochemical characterization of NLCs has been carried out using Zetasizer, FT-IR, and TEM analysis. Punicalagin and ketogenic amino acid-loaded NLCs (NLC-PUNI-KAA) were identified with an average diameter of 240 to 800 nm. The biosafety of NLC-PUNI-KAA has been evaluated in human mesenchymal stem cells. PI staining confirmed that a 0.4, 0.8 or 1.6μg/dL dose of NLC-PUNI-KAA potentially maintains nuclear integration. NLC-PUNI-KAA treated with maturing adipocytes decreased lipid accumulation and significantly increased the gene expression levels of fatty acid beta-oxidation (PPARγC1α, UCP-1 and PRDM-16) pathways when compared to free PUNI (5 μg/dL) treatment. The lipolytic potential has been confirmed by the functional activation of AMPK and CREBp-1 protein levels. In conclusion, NLC-PUNI-KAA treatment effectively increased mitochondrial efficiency more than free punicalagin or orlistat treated maturing adipocyte. Enhanced lipolysis and decreased hypertrophic adipocyte resulted in decreased adipokine secretion, which has been associated with the suppression of obesity-associated comorbidities and vascular cell inflammation. The bioefficacy and lipolytic potential of water-soluble punicalagin have been improved after functional modification into NLCs.
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12
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Yang X, Tang T, Wen J, Li M, Chen J, Li T, Dai Y, Cheng Q. Effects of S24-7 on the weight of progeny rats after exposure to ceftriaxone sodium during pregnancy. BMC Microbiol 2021; 21:166. [PMID: 34082715 PMCID: PMC8176729 DOI: 10.1186/s12866-021-02231-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2021] [Accepted: 05/13/2021] [Indexed: 11/10/2022] Open
Abstract
Antibiotic exposure during pregnancy will adversely affect the growth of offspring; however, this remains controversial and the mechanism is poorly understood. To study this phenomenon, we added ceftriaxone sodium to the drinking water of pregnant rats and continuously monitored the body weight of their offspring. The results showed that compared with the control group, the offspring exposed to antibiotics during pregnancy had a higher body weight up to 3 weeks old but had a lower body weight at 6 weeks old. To determine the role of the gut microbiota and its metabolites in the growth of offspring, we collected feces for sequencing and further established that the experimental group has a different composition ratio of dominant bacteria at 6 week old, among which S24–7 correlated negatively with body weight and the metabolites that correlated with body weight-related unique flora were L-Valine, L-Leucine, Glutaric acid, N-Acetyl-L-glutamate, and 5-Methylcytosine. To further explore how they affect the growth of offspring, we submitted these data to Kyoto Encyclopedia of Genes and Genomes website for relevant pathway analysis. The results showed that compared with the control, the following metabolic pathways changed significantly: Valine, leucine, and isoleucine biosynthesis; Protein digestion and absorption; and Mineral absorption. Therefore, we believe that our findings support the conclusion that ceftriaxone sodium exposure in pregnancy has a long-lasting adverse effect on the growth of offspring because of an imbalance of gut microbiota, especially S24–7, via different metabolic pathways.
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Affiliation(s)
- Xin Yang
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.,National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Ting Tang
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Jing Wen
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Mengchun Li
- Chongqing Key Laboratory of Child Health and Nutrition, Chongqing, China
| | - Jie Chen
- National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Tingyu Li
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China
| | - Ying Dai
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
| | - Qian Cheng
- Department of Primary Child Health Care, Children's Hospital of Chongqing Medical University, Chongqing, 400014, China.
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Huang X, Chen X, Zhao S, Hou J, Huang L, Xu J, Wang W, He M, Shen O, Zhang J. Metabolomic Profiles of Shift Workers and Day Workers: A Cross-Sectional Study. Obesity (Silver Spring) 2021; 29:1074-1082. [PMID: 34029446 DOI: 10.1002/oby.23164] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 02/21/2021] [Accepted: 02/22/2021] [Indexed: 11/08/2022]
Abstract
OBJECTIVE The purpose of this study was to characterize the metabolomic profiles of shift workers and day workers and to discover the effect of shift work on workers' metabolic health. METHODS A total of 824 participants aged 25 to 55 years were recruited, and 485 (275 shift workers and 210 day workers) completed the study. The mean age of the shift workers was 37.32 (5.53) years old, and that of day workers was 36.50 (7.83) years old. Serum and salivary samples were collected for the detection of key biochemical indicators (melatonin, cholesterol, and low-density lipoprotein cholesterol) and for metabolome profile analyses. RESULTS Compared with female day workers, female shift workers had a higher BMI, waist circumference, and hip circumference. Correspondingly, we identified 76 significant metabolites (false discovery rate < 0.05) in shift workers, including L-tryptophan, acylcarnitines, and several fatty acids. Three pathways that presented significant differences were biosynthesis of unsaturated fatty acids, linoleic acid metabolism, and ubiquinone and other terpenoid-quinone biosynthesis. CONCLUSIONS Compared with day workers, shift workers were more prone to weight gain and central obesity and were at a higher risk for impaired lipid metabolism with disrupted circadian rhythms.
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Affiliation(s)
- Xinru Huang
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Xiaoyi Chen
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Shiyu Zhao
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Jiaojiao Hou
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Li Huang
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Jie Xu
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Wei Wang
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Mengting He
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
| | - Ouxi Shen
- Department of Occupational Health, Suzhou Industrial Park Center for Disease Control and Prevention, Suzhou, Jiangsu, China
| | - Jie Zhang
- Department of Toxicology, School of Public Health, Medical College of Soochow University, Suzhou, Jiangsu, China
- Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Suzhou, Jiangsu, China
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14
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Star L, Tesseraud S, van Tol M, Minussi I, Corrent E, Lambert W. Production performance and plasma metabolite concentrations of broiler chickens fed low crude protein diets differing in Thr and Gly. ACTA ACUST UNITED AC 2021; 7:472-480. [PMID: 34258435 PMCID: PMC8245817 DOI: 10.1016/j.aninu.2020.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Revised: 07/26/2020] [Accepted: 09/08/2020] [Indexed: 11/25/2022]
Abstract
The aim of the study was to test the interaction between Thr and Gly in low crude protein (CP) diets in 7 to 28 d broilers on production performance and plasma metabolites. A total of 2,040 broilers were allocated to 17 treatments. A positive control (PC) diet (20.5% CP) was formulated to be adequate in dietary Thr and Gly. A negative control (NC) diet (18.5% CP, deficient in Thr and Gly) was supplemented with crystalline l-Thr and Gly to obtain a 4 Thr × 4 Gly design. Dietary Thr was tested at an apparent faecal digestibility (AFD) Thr-to-Lys ratio, which was 55%, 58%, 61% or 64%, and dietary Gly was tested at an AFD (Gly + Ser)-to-Lys ratio, which was 135%, 142%, 149% or 156%. Plasma samples were collected at 28 d. The low CP diet, formulated at 64% Thr and 156% Gly, resulted in a higher body weight gain (BWG) (P < 0.01) and similar feed conversion ratio (FCR) as the high CP treatment (PC). FCR was improved (P < 0.001) by l-Thr supplementation. Quadratic response to dietary Thr was significant for feed intake (FI), BWG and FCR (P < 0.01). A near-significant interaction for Thr × Gly was observed for FI and BWG (Plinear = 0.091 and P = 0.074, respectively). Gly did not affect production performance. An interaction between Thr × Gly on plasma free AA level was observed (P < 0.05). Free AA concentration in plasma linearly decreased with increase in AFD Thr-to-Lys ratio, and increased with increase in AFD (Gly + Ser)-to-Lys ratio. Plasma uric acid concentration was higher in PC than in all of the other diets, and plasma triglyceride concentration was decreased by l-Thr supplementation, but not by Gly. In conclusion, Gly was not limiting for growth at low dietary CP level unless Thr was deficient, showing that adequate amounts of Thr in broiler diets can overcome marginal supply of Gly and Ser and allow reduction of dietary CP from 20.5% to 18.5% for broilers from 7 to 28 d of age.
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Affiliation(s)
- Laura Star
- Schothorst Feed Research, Meerkoetenweg 26, 8218 NA Lelystad, the Netherlands
| | | | - Marije van Tol
- Orffa Additives B.V., Vierlinghstraat 51, 4251 LC Werkendam, the Netherlands
| | - Ilaria Minussi
- Ajinomoto Animal Nutrition Europe, 32 rue Guersant, 75017 Paris, France
| | - Etienne Corrent
- Ajinomoto Animal Nutrition Europe, 32 rue Guersant, 75017 Paris, France
| | - William Lambert
- Ajinomoto Animal Nutrition Europe, 32 rue Guersant, 75017 Paris, France
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15
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High Fat-High Fructose Diet-Induced Changes in the Gut Microbiota Associated with Dyslipidemia in Syrian Hamsters. Nutrients 2020; 12:nu12113557. [PMID: 33233570 PMCID: PMC7699731 DOI: 10.3390/nu12113557] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 11/16/2020] [Accepted: 11/17/2020] [Indexed: 12/15/2022] Open
Abstract
Aim: The objective of this study was to characterize the early effects of high fructose diets (with and without high fat) on both the composition of the gut microbiota and lipid metabolism in Syrian hamsters, a reproducible preclinical model of diet-induced dyslipidemia. Methods: Eight-week-old male hamsters were fed diets consisting of high-fat/high-fructose, low-fat/high-fructose or a standard chow diet for 14 days. Stool was collected at baseline (day 0), day 7 and day 14. Fasting levels of plasma triglycerides and cholesterol were monitored on day 0, day 7 and day 14, and nonfasting levels were also assayed on day 15. Then, 16S rRNA sequencing of stool samples was used to determine gut microbial composition, and predictive metagenomics was performed to evaluate dietary-induced shifts in deduced microbial functions. Results: Both high-fructose diets resulted in divergent gut microbiota composition. A high-fat/high-fructose diet induced the largest shift in overall gut microbial composition, with dramatic shifts in the Firmicute/Bacteroidetes ratio, and changes in beta diversity after just seven days of dietary intervention. Significant associations between genus level taxa and dietary intervention were identified, including an association with Ruminococceace NK4A214 group in high-fat/high-fructose fed animals and an association with Butryimonas with the low-fat/high-fructose diet. High-fat/high-fructose feeding induced dyslipidemia with increases in plasma triglycerides and cholesterol, and hepatomegaly. Dietary-induced changes in several genus level taxa significantly correlated with lipid levels over the two-week period. Differences in microbial metabolic pathways between high-fat/high-fructose and low-fat/high-fructose diet fed hamsters were identified, and several of these pathways also correlated with lipid profiles in hamsters. Conclusions: The high-fat/high-fructose diet caused shifts in the host gut microbiota. These dietary-induced alterations in gut microbial composition were linked to changes in the production of secondary metabolites, which contributed to the development of metabolic syndrome in the host.
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16
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Yun KE, Kim J, Kim MH, Park E, Kim HL, Chang Y, Ryu S, Kim HN. Major Lipids, Apolipoproteins, and Alterations of Gut Microbiota. J Clin Med 2020; 9:jcm9051589. [PMID: 32456223 PMCID: PMC7290464 DOI: 10.3390/jcm9051589] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Revised: 05/14/2020] [Accepted: 05/21/2020] [Indexed: 02/07/2023] Open
Abstract
The gut microbiota has been linked to blood lipids. However, the relationship between the gut microbiome and other lipid markers like apolipoproteins A1 (apoA1) and B (apoB) as well as classical lipid markers in Asians remain unclear. Here, we examined the associations between gut microbial diversity and taxonomic compositions with both apolipoproteins and lipid markers in a large number of Korean patients. The fecal 16S rRNA gene sequencing data from 1141 subjects were analyzed and subjects were categorized into control group (G0) or abnormal group (G1) according to blood lipid measurements. The microbial diversity and several taxa of the gut microbiota were significantly associated with triglyceride, apoA1, and apoB levels, but not with total cholesterol, low-density lipoprotein cholesterol, and high-density lipoprotein cholesterol levels. The alpha diversity of the gut microbiota was inversely associated with high triglyceride level. Interestingly, G1 of apoA1 showed increased microbial richness and distinct microbial community compared with G0 of apoA1. A high abundance of Fusobacteria and low abundance of Oscillospira were found in the hypertriglyceridemia group. In this large-scale study, we identified associations of gut microbiota with apolipoproteins and classical lipid markers, indicating that the gut microbiota may be an important target for regulating blood lipids.
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Affiliation(s)
- Kyung Eun Yun
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 04514, Korea; (K.E.Y.); (J.K.); (M.-h.K.); (Y.C.); (S.R.)
| | - Jimin Kim
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 04514, Korea; (K.E.Y.); (J.K.); (M.-h.K.); (Y.C.); (S.R.)
| | - Mi-hyun Kim
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 04514, Korea; (K.E.Y.); (J.K.); (M.-h.K.); (Y.C.); (S.R.)
| | - Eunkyo Park
- Department of Biochemistry, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (E.P.); (H.-L.K.)
| | - Hyung-Lae Kim
- Department of Biochemistry, College of Medicine, Ewha Womans University, Seoul 07804, Korea; (E.P.); (H.-L.K.)
| | - Yoosoo Chang
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 04514, Korea; (K.E.Y.); (J.K.); (M.-h.K.); (Y.C.); (S.R.)
- Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 03181, Korea
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul 03063, Korea
| | - Seungho Ryu
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 04514, Korea; (K.E.Y.); (J.K.); (M.-h.K.); (Y.C.); (S.R.)
- Department of Occupational and Environmental Medicine, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 03181, Korea
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul 03063, Korea
| | - Han-Na Kim
- Center for Cohort Studies, Total Healthcare Center, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 04514, Korea; (K.E.Y.); (J.K.); (M.-h.K.); (Y.C.); (S.R.)
- Department of Clinical Research Design and Evaluation, SAIHST, Sungkyunkwan University, Seoul 03063, Korea
- Medical Research Institute, Kangbuk Samsung Hospital, School of Medicine, Sungkyunkwan University, Seoul 03181, Korea
- Correspondence: ; Tel.: +82-2-2001-1978
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17
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Weiskirchen S, Weiper K, Tolba RH, Weiskirchen R. All You Can Feed: Some Comments on Production of Mouse Diets Used in Biomedical Research with Special Emphasis on Non-Alcoholic Fatty Liver Disease Research. Nutrients 2020; 12:nu12010163. [PMID: 31936026 PMCID: PMC7019265 DOI: 10.3390/nu12010163] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 12/25/2019] [Accepted: 12/31/2019] [Indexed: 02/07/2023] Open
Abstract
The laboratory mouse is the most common used mammalian research model in biomedical research. Usually these animals are maintained in germ-free, gnotobiotic, or specific-pathogen-free facilities. In these facilities, skilled staff takes care of the animals and scientists usually don’t pay much attention about the formulation and quality of diets the animals receive during normal breeding and keeping. However, mice have specific nutritional requirements that must be met to guarantee their potential to grow, reproduce and to respond to pathogens or diverse environmental stress situations evoked by handling and experimental interventions. Nowadays, mouse diets for research purposes are commercially manufactured in an industrial process, in which the safety of food products is addressed through the analysis and control of all biological and chemical materials used for the different diet formulations. Similar to human food, mouse diets must be prepared under good sanitary conditions and truthfully labeled to provide information of all ingredients. This is mandatory to guarantee reproducibility of animal studies. In this review, we summarize some information on mice research diets and general aspects of mouse nutrition including nutrient requirements of mice, leading manufacturers of diets, origin of nutrient compounds, and processing of feedstuffs for mice including dietary coloring, autoclaving and irradiation. Furthermore, we provide some critical views on the potential pitfalls that might result from faulty comparisons of grain-based diets with purified diets in the research data production resulting from confounding nutritional factors.
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Affiliation(s)
- Sabine Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074 Aachen, Germany; (S.W.); (K.W.)
| | - Katharina Weiper
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074 Aachen, Germany; (S.W.); (K.W.)
- Institute of Laboratory Animal Science and Experimental Surgery, RWTH University Hospital Aachen, D-52074 Aachen, Germany;
| | - René H. Tolba
- Institute of Laboratory Animal Science and Experimental Surgery, RWTH University Hospital Aachen, D-52074 Aachen, Germany;
| | - Ralf Weiskirchen
- Institute of Molecular Pathobiochemistry, Experimental Gene Therapy and Clinical Chemistry (IFMPEGKC), RWTH University Hospital Aachen, D-52074 Aachen, Germany; (S.W.); (K.W.)
- Correspondence: ; Tel.: +49-(0)241-80-88683
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18
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Mobeen F, Sharma V, Prakash T. Functional signature analysis of extreme Prakriti endophenotypes in gut microbiome of western Indian rural population. Bioinformation 2019; 15:490-505. [PMID: 31485135 PMCID: PMC6704335 DOI: 10.6026/97320630015490] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Accepted: 06/30/2019] [Indexed: 12/27/2022] Open
Abstract
Ayurveda is practiced in India from ancient times and stratifies the individuals based on their Prakriti constitution. Advancements in modern science have led to the association of Prakriti with molecular, biochemical, genomic and other entities. We have recently explored the gut microbiome composition and microbial signatures in healthy extreme Prakriti endo-phenotypes. However, their functional potentials are still lacking. The present study includes 63 females (29 Vata, 11 Pitta, and 23 Kapha) and 50 males (13 Vata, 18 Pitta, and 19 Kapha) samples. The predictive functional profiling and organism level functional traits of the human gut microbiome have been carried out in Prakriti groups using imputed metagenomic approach. A higher functional level redundancy is found than the taxonomy across the Prakriti groups, however the dominant taxa contributing to the functional profiles are found to be different. A high number of functional signatures specific to the Prakriti groups were identified in female datasets. Some of the functional signatures were found to be gender specific. For example, a higher abundance of microbes contributing potential pathogenic and stress tolerance related functions was found in Kapha in female and Pitta in male. The functional signatures correlated well with phenotypes and disease predisposition of Prakriti groups.
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Affiliation(s)
- Fauzul Mobeen
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand 175005, Mandi, Himachal Pradesh, India
| | - Vikas Sharma
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand 175005, Mandi, Himachal Pradesh, India
| | - Tulika Prakash
- School of Basic Sciences, Indian Institute of Technology Mandi, Kamand 175005, Mandi, Himachal Pradesh, India
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19
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Elsabagh M, Ishikake M, Sakamoto Y, Haruno A, Miura M, Fujieda T, Obitsu T, Sugino T. Postruminal supply of amino acids enhances ghrelin secretion and lipid metabolism in feed-deprived sheep. Anim Sci J 2018; 89:1663-1672. [DOI: 10.1111/asj.13114] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Revised: 07/24/2018] [Accepted: 08/29/2018] [Indexed: 12/22/2022]
Affiliation(s)
- Mabrouk Elsabagh
- Graduate School of Biosphere Science; Hiroshima University; Higashi-Hiroshima, Hiroshima Japan
- Department of Nutrition and Clinical Nutrition; Faculty of Veterinary Medicine; Kafrelsheikh University; Kafr El-Sheikh Egypt
| | - Motomi Ishikake
- Graduate School of Biosphere Science; Hiroshima University; Higashi-Hiroshima, Hiroshima Japan
| | | | | | | | | | - Taketo Obitsu
- Graduate School of Biosphere Science; Hiroshima University; Higashi-Hiroshima, Hiroshima Japan
| | - Toshihisa Sugino
- Graduate School of Biosphere Science; Hiroshima University; Higashi-Hiroshima, Hiroshima Japan
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