1
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Zhu ZG, Ma JW, Ji DD, Li QQ, Diao XY, Bao J. Mendelian randomization analysis identifies causal associations between serum lipidomic profile, amino acid biomarkers and sepsis. Heliyon 2024; 10:e32779. [PMID: 38975226 PMCID: PMC11226841 DOI: 10.1016/j.heliyon.2024.e32779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2024] [Revised: 05/30/2024] [Accepted: 06/10/2024] [Indexed: 07/09/2024] Open
Abstract
Background Sepsis is a life-threatening condition marked by a severe systemic response to infection, leading to widespread inflammation, cellular signaling disruption, and metabolic dysregulation. The role of lipid and amino acid metabolism in sepsis is not fully understood, but aberrations in this pathway could contribute to the disease's pathophysiology. Methods To explore the potential of lipid and amino acid compounds as biomarkers for the diagnosis and prognosis of sepsis, a two-sample Mendelian Randomization (MR) study was conducted, examining the relationship between sepsis and 249 serum lipid and amino acid-related markers. Key enzymes involved in synthesis of phosphatidylcholine, including choline/ethanolamine phosphotransferase 1 (CEPT1), choline phosphotransferase 1 (CPT1), and ethanolamine phosphotransferase 1 (EPT1), were also targeted for drug-target Mendelian randomization. Results The study found that phosphatidylcholines (OR IVW: 0.88, 95%CI: 0.80-0.96, p = 0.005) and phospholipids in medium HDL (OR IVW: 0.86, 95%CI: 0.77-0.96, p = 0.007) potentially exhibit a protective effect against sepsis nominally. However, the potential drug target of CEPT1, CPT1, and EPT1 was found to be unrelated to septic outcomes. Conclusion Our findings suggest that increasing levels of phosphatidylcholines and medium HDL phospholipids may reduce the incidence of sepsis. This highlights the potential of lipid-based biomarkers in the diagnosis and management of sepsis, opening avenues for new therapeutic strategies.
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Affiliation(s)
- Zi-gang Zhu
- Department of Critical Care Medicine, Jiangnan University Medical Center,Wuxi No.2 People's Hospital, Wuxi, 214002, China
| | - Jia-wei Ma
- Department of Critical Care Medicine, Jiangnan University Medical Center,Wuxi No.2 People's Hospital, Wuxi, 214002, China
- Department of Critical Care Medicine, Aheqi County People's Hospital, Xinjiang, 843599, China
| | - Dan-dan Ji
- Department of Critical Care Medicine, Jiangnan University Medical Center,Wuxi No.2 People's Hospital, Wuxi, 214002, China
| | - Qian-qian Li
- Department of Critical Care Medicine, Jiangnan University Medical Center,Wuxi No.2 People's Hospital, Wuxi, 214002, China
| | - Xin-yu Diao
- Emergency Department, Yixing Traditional Chinese Medicine Hospital, Yixing,214299,China
| | - Jie Bao
- Department of Critical Care Medicine, Jiangnan University Medical Center,Wuxi No.2 People's Hospital, Wuxi, 214002, China
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2
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Liu S, Mochizuki M, Suzuki Y, Takemasa E, Yano A, Imai M, Mogi M. Dietary leucine supplementation restores T-cell mitochondrial respiration and regulates T-lineage differentiation in denervation-induced sarcopenic mice. J Nutr Biochem 2024; 124:109508. [PMID: 37898392 DOI: 10.1016/j.jnutbio.2023.109508] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2023] [Revised: 10/18/2023] [Accepted: 10/25/2023] [Indexed: 10/30/2023]
Abstract
With the aim of offsetting immune dysfunction preceded by sarcopenia, the feasibility and efficiency of nutritional leucine supplementation were evaluated using a murine denervation-induced sarcopenia model. Sciatic nerve axotomy caused significant loss of skeletal muscle of the hind limbs and accelerated mitochondrial stress along with suppressed ATP production in spleen-derived T cells. Dietary leucine intake not only ameliorated muscle mass anabolism in a sarcopenic state, but also restored mitochondrial respiratory function, as indicated by elevated levels of basal respiration, maximal respiration, spare respiratory capacity, and ATP production, in T cells, which in turn led to downregulated expression of mTOR and downstream signals, as indicated by the findings of comprehensive transcriptome analysis. Consequentially, this finally resulted in amelioration of the sarcopenia-induced relative Th1/Th17-dominant proinflammatory microenvironment. These results highlight the importance of leucine-promoted metabolic cues in directing T cell fate in a sarcopenic microenvironment. The present study provides insights that particularly help rationalize the design and optimization of leucine supplementation for chronic sarcopenic patients with autoimmune diseases.
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Affiliation(s)
- Shuang Liu
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan.
| | - Marii Mochizuki
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan
| | - Yasuyuki Suzuki
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan; Department of Anesthesiology, Saiseikai Matsuyama Hospital, Matsuyama, Japan; Research Division, Saiseikai Research Institute of Health Care and Welfare, Tokyo, Japan
| | - Erika Takemasa
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan
| | - Akiko Yano
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan
| | - Matome Imai
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan
| | - Masaki Mogi
- Department of Pharmacology, Ehime University Graduate School of Medicine, Shitsugawa, Toon, Ehime, Japan
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3
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Sharma S, Zhang X, Azhar G, Patyal P, Verma A, KC G, Wei JY. Valine improves mitochondrial function and protects against oxidative stress. Biosci Biotechnol Biochem 2024; 88:168-176. [PMID: 38093456 PMCID: PMC10807754 DOI: 10.1093/bbb/zbad169] [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: 09/09/2023] [Accepted: 11/07/2023] [Indexed: 01/26/2024]
Abstract
Among the branched-chain amino acids, leucine and isoleucine have been well studied for their roles in improving mitochondrial function and reducing oxidative stress. However, role of valine in mitochondrial function regulation and oxidative stress management remains elusive. This study investigated valine effect on mitochondrial function and oxidative stress in vitro. Valine increased expression of genes involved in mitochondrial biogenesis and dynamics. It upregulates mitochondrial function at complexes I, II, and IV levels of electron transport chain. Flow cytometry studies revealed, valine reduced oxidative stress by significantly lowering mitochondrial reactive oxygen species and protein expression of 4-hydroxynonenal. Functional role of valine against oxidative stress was analyzed by XFe96 Analyzer. Valine sustained oxidative phosphorylation and improved ATP generation rates during oxidative stress. In conclusion, our findings shed more light on the critical function of valine in protecting mitochondrial function thereby preventing mitochondrial/cellular damage induced by oxidative stress.
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Affiliation(s)
- Shakshi Sharma
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Xiaomin Zhang
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Gohar Azhar
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Pankaj Patyal
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Ambika Verma
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Grishma KC
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - Jeanne Y Wei
- Donald W. Reynolds Department of Geriatrics, Institute on Aging, University of Arkansas for Medical Sciences, Little Rock, AR, USA
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4
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Alewel DI, Rentschler KM, Jackson TW, Schladweiler MC, Astriab-Fisher A, Evansky PA, Kodavanti UP. Serum metabolome and liver transcriptome reveal acrolein inhalation-induced sex-specific homeostatic dysfunction. Sci Rep 2023; 13:21179. [PMID: 38040807 PMCID: PMC10692194 DOI: 10.1038/s41598-023-48413-w] [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: 09/19/2023] [Accepted: 11/26/2023] [Indexed: 12/03/2023] Open
Abstract
Acrolein, a respiratory irritant, induces systemic neuroendocrine stress. However, peripheral metabolic effects have not been examined. Male and female WKY rats were exposed to air (0 ppm) or acrolein (3.16 ppm) for 4 h, followed by immediate serum and liver tissue collection. Serum metabolomics in both sexes and liver transcriptomics in males were evaluated to characterize the systemic metabolic response. Of 887 identified metabolites, > 400 differed between sexes at baseline. An acrolein biomarker, 3-hydroxypropyl mercapturic acid, increased 18-fold in males and 33-fold in females, indicating greater metabolic detoxification in females than males. Acrolein exposure changed 174 metabolites in males but only 50 in females. Metabolic process assessment identified higher circulating free-fatty acids, glycerols, and other lipids in male but not female rats exposed to acrolein. In males, acrolein also increased branched-chain amino acids, which was linked with metabolites of nitrogen imbalance within the gut microbiome. The contribution of neuroendocrine stress was evident by increased corticosterone in males but not females. Male liver transcriptomics revealed acrolein-induced over-representation of lipid and protein metabolic processes, and pathway alterations including Sirtuin, insulin-receptor, acute-phase, and glucocorticoid signaling. In sum, acute acrolein inhalation resulted in sex-specific serum metabolomic and liver transcriptomic derangement, which may have connections to chronic metabolic-related diseases.
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Affiliation(s)
- Devin I Alewel
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Katherine M Rentschler
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Thomas W Jackson
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Mette C Schladweiler
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 109 T.W. Alexander Dr., Research Triangle Park, NC, 27711, USA
| | - Anna Astriab-Fisher
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 109 T.W. Alexander Dr., Research Triangle Park, NC, 27711, USA
| | - Paul A Evansky
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 109 T.W. Alexander Dr., Research Triangle Park, NC, 27711, USA
| | - Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, 109 T.W. Alexander Dr., Research Triangle Park, NC, 27711, USA.
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5
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Yap KY, Chi H, Ng S, Ng DHL, Shelat VG. Effect of perioperative branched chain amino acids supplementation in liver cancer patients undergoing surgical intervention: A systematic review. World J Gastrointest Surg 2023; 15:2596-2618. [PMID: 38111761 PMCID: PMC10725538 DOI: 10.4240/wjgs.v15.i11.2596] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/15/2023] [Accepted: 10/23/2023] [Indexed: 11/26/2023] Open
Abstract
BACKGROUND Branched chain amino acid (BCAA) supplementation has been associated with favourable outcomes in liver malignancies requiring definitive resection or liver transplantation. Currently, there are no updated systematic reviews evaluating the efficacy of perioperative BCAA supplementation in patients undergoing surgery for liver cancer. AIM To evaluate the efficacy of perioperative BCAA supplementation in patients undergoing surgery for liver cancer. METHODS A systematic review of randomized control trials and observational studies was conducted on PubMed, Embase, Cochrane Library, Scopus, and Web of Science to evaluate the effect of perioperative BCAA supplementation compared to standard in-hospital diet, in liver cancer patients undergoing surgery. Clinical outcomes were extracted, and a meta-analysis was performed on relevant outcomes. RESULTS 16 studies including 1389 patients were included. Perioperative BCAA administration was associated with reduced postoperative infection [risk ratio (RR) = 0.58 95% confidence intervals (CI): 0.39 to 0.84, P = 0.005] and ascites [RR = 0.57 (95%CI: 0.38 to 0.85), P = 0.005]. There was also a reduction in length of hospital stay (LOS) [weighted mean difference (WMD) = -3.03 d (95%CI: -5.49 to -0.57), P = 0.02] and increase in body weight [WMD = 1.98 kg (95%CI: 0.35 to 3.61, P = 0.02]. No significant differences were found in mortality, cancer recurrence and overall survival. No significant safety concerns were identified. CONCLUSION Perioperative BCAA administration is efficacious in reducing postoperative infection, ascites, LOS, and increases body weight in liver cancer patients undergoing surgical resection.
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Affiliation(s)
- Kwan Yi Yap
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - HongHui Chi
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Sherryl Ng
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
| | - Doris HL Ng
- Department of Gastroenterology and Hepatology, Tan Tock Seng Hospital, Singapore 308433, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 636921, Singapore
| | - Vishal G Shelat
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore 117597, Singapore
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 636921, Singapore
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore
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6
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Guo Y, Wei S, Yin M, Cao D, Li Y, Wen C, Zhou J. Gas Chromatography-Mass Spectrometry Reveals Stage-Specific Metabolic Signatures of Ankylosing Spondylitis. Metabolites 2023; 13:1058. [PMID: 37887383 PMCID: PMC10608640 DOI: 10.3390/metabo13101058] [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: 08/16/2023] [Revised: 10/03/2023] [Accepted: 10/04/2023] [Indexed: 10/28/2023] Open
Abstract
Ankylosing spondylitis (AS) is a type of chronic rheumatic immune disease, and the crucial point of AS treatment is identifying the correct stage of the disease. However, there is a lack of effective diagnostic methods for AS staging. The primary objective of this study was to perform an untargeted metabolomic approach in AS patients in an effort to reveal metabolic differences between patients in remission and acute stages. Serum samples from 40 controls and 57 AS patients were analyzed via gas chromatography-mass spectrometry (GC-MS). Twenty-four kinds of differential metabolites were identified between the healthy controls and AS patients, mainly involving valine/leucine/isoleucine biosynthesis and degradation, phenylalanine/tyrosine/tryptophan biosynthesis, glutathione metabolism, etc. Furthermore, the levels of fatty acids (linoleate, dodecanoate, hexadecanoate, and octadecanoate), amino acids (serine and pyroglutamate), 2-hydroxybutanoate, glucose, etc., were lower in patients in the acute stage than those in the remission stage, which may be associated with the aggravated inflammatory response and elevated oxidative stress in the acute stage. Multiple stage-specific metabolites were significantly correlated with inflammatory indicators (CRP and ESR). In addition, the combination of serum 2-hydroxybutanoate and hexadecanoate plays a significant role in the diagnosis of AS stages. These metabolomics-based findings provide new perspectives for AS staging, treatment, and pathogenesis studies.
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Affiliation(s)
- Yixuan Guo
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
| | - Shuangshuang Wei
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
| | - Mengdi Yin
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
| | - Dandan Cao
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
| | - Yiling Li
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
| | - Chengping Wen
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
- Key Laboratory of Chinese Medicine Rheumatology of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou 310053, China
| | - Jia Zhou
- Institute of Basic Research in Clinical Medicine, College of Basic Medical Sciences, Zhejiang Chinese Medical University, Hangzhou 310053, China; (Y.G.); (S.W.); (M.Y.); (D.C.); (Y.L.)
- Key Laboratory of Chinese Medicine Rheumatology of Zhejiang Province, Zhejiang Chinese Medical University, Hangzhou 310053, China
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7
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Branched chain amino acids catabolism as a source of new drug targets in pathogenic protists. Exp Parasitol 2023; 249:108499. [PMID: 36898495 DOI: 10.1016/j.exppara.2023.108499] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/02/2023] [Accepted: 03/05/2023] [Indexed: 03/11/2023]
Abstract
Leucine, isoleucine, and valine, collectively termed Branched Chain Amino Acids (BCAA), are hydrophobic amino acids (AAs) and are essential for most eukaryotes since in these organisms they cannot be biosynthesized and must be supplied by the diet. These AAs are structurally relevant for muscle cells and, of course, important for the protein synthesis process. The metabolism of BCAA and its participation in different biological processes in mammals have been relatively well described. However, for other organisms as pathogenic parasites, the literature is really scarce. Here we review the BCAA catabolism, compile evidence on their relevance for pathogenic eukaryotes with special emphasis on kinetoplastids and highlight unique aspects of this underrated pathway.
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8
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Blessy Pricilla R, Bhuvanesh N, Vidhya B, Murugan S, Nandhakumar R. Exploration of GO-CuO nanocomposite for its antibacterial properties and potential application as a chemosensor in the sensing of L-Leucine. INORG NANO-MET CHEM 2022. [DOI: 10.1080/24701556.2021.1956958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- R. Blessy Pricilla
- Centre for Nanoscience and Genomics, Karunya Institute of Technology and Sciences (Declared as Deemed-to-be University), Karunya Nagar, Coimbatore, India
| | - N. Bhuvanesh
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Declared as Deemed-to-be University), Karunya Nagar, Coimbatore, India
| | - B. Vidhya
- Centre for Nanoscience and Genomics, Karunya Institute of Technology and Sciences (Declared as Deemed-to-be University), Karunya Nagar, Coimbatore, India
| | - S. Murugan
- Department of Biotechnology, Karunya Institute of Technology and Sciences (Declared as Deemed-to-be University), Karunya Nagar, Coimbatore, India
| | - R. Nandhakumar
- Department of Applied Chemistry, Karunya Institute of Technology and Sciences (Declared as Deemed-to-be University), Karunya Nagar, Coimbatore, India
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9
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Amino Acid-Related Metabolic Signature in Obese Children and Adolescents. Nutrients 2022; 14:nu14071454. [PMID: 35406066 PMCID: PMC9003189 DOI: 10.3390/nu14071454] [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: 02/28/2022] [Revised: 03/24/2022] [Accepted: 03/25/2022] [Indexed: 02/06/2023] Open
Abstract
The growing interest in metabolomics has spread to the search for suitable predictive biomarkers for complications related to the emerging issue of pediatric obesity and its related cardiovascular risk and metabolic alteration. Indeed, several studies have investigated the association between metabolic disorders and amino acids, in particular branched-chain amino acids (BCAAs). We have performed a revision of the literature to assess the role of BCAAs in children and adolescents' metabolism, focusing on the molecular pathways involved. We searched on Pubmed/Medline, including articles published until February 2022. The results have shown that plasmatic levels of BCAAs are impaired already in obese children and adolescents. The relationship between BCAAs, obesity and the related metabolic disorders is explained on one side by the activation of the mTORC1 complex-that may promote insulin resistance-and on the other, by the accumulation of toxic metabolites, which may lead to mitochondrial dysfunction, stress kinase activation and damage of pancreatic cells. These compounds may help in the precocious identification of many complications of pediatric obesity. However, further studies are still needed to better assess if BCAAs may be used to screen these conditions and if any other metabolomic compound may be useful to achieve this goal.
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10
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Savizi ISP, Maghsoudi N, Motamedian E, Lewis NE, Shojaosadati SA. Valine feeding reduces ammonia production through rearrangement of metabolic fluxes in central carbon metabolism of CHO cells. Appl Microbiol Biotechnol 2022; 106:1113-1126. [PMID: 35044498 DOI: 10.1007/s00253-021-11755-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2021] [Revised: 12/21/2021] [Accepted: 12/27/2021] [Indexed: 11/02/2022]
Abstract
Ammonia is a toxic byproduct of CHO cell metabolism, which inhibits cell growth, reduces cell viability, alters glycosylation, and decreases recombinant protein productivity. In an attempt to minimize the ammonium accumulation in cell culture media, different amino acids were added individually to the culture medium before the production phase to alleviate the negative effects of ammonium on cell culture performance. Among all the amino acids examined in this study, valine showed the most positive impact on CHO cell culture performance. When the cultured CHO cells were fed with 5 mM valine, EPO titer was increased by 25% compared to the control medium, and ammonium and lactate production were decreased by 23 and 26%, respectively, relative to the control culture. Moreover, the sialic acid content of the EPO protein in valine-fed culture was higher than in the control culture, most likely because of the lower ammonium concentration. Flux balance analysis (FBA) results demonstrated that the citric acid cycle was enriched by valine feeding. The measurement of TCA cycle activity supported this finding. The analysis revealed that there might be a link between promoting tricarboxylic acid (TCA) cycle metabolism in valine-fed culture and reduction in lactate and ammonia accumulation. Furthermore, in valine-fed culture, FBA outcomes showed that alanine was excreted into the medium as the primary mechanism for reducing ammonium concentration. It was predicted that the elevated TCA cycle metabolism was concurrent with an increment in recombinant protein production. Taken together, our data demonstrate that valine addition could be an effective strategy for mitigating the negative impacts of ammonium and enhancing glycoprotein production in both quality and quantity. KEY POINTS: • Valine feeding can mitigate the negative impacts of ammonia on CHO cell growth. • Valine addition assists the ammonia removal mechanism by enriching the TCA cycle. • Ammonia is removed from the media through alanine excretion in valine-fed culture.
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Affiliation(s)
- Iman Shahidi Pour Savizi
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Iran
| | - Nader Maghsoudi
- Neuroscience Research Center, Shahid Beheshti University of Medical Science, Tehran, Iran
| | - Ehsan Motamedian
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Iran
| | - Nathan E Lewis
- Department of Bioengineering, University of California, La Jolla, San Diego, CA, USA.,School of Medicine, Novo Nordisk Foundation Center for Biosustainability at the University of California, La Jolla, San Diego, CA, USA.,Department of Pediatrics, School of Medicine, University of California, La Jolla, San Diego, CA, USA
| | - Seyed Abbas Shojaosadati
- Biotechnology Department, Faculty of Chemical Engineering, Tarbiat Modares University, P.O. Box 14155-4838, Tehran, Iran.
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11
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Kim WK, Singh AK, Wang J, Applegate T. Functional role of branched chain amino acids in poultry: a review. Poult Sci 2022; 101:101715. [PMID: 35299066 PMCID: PMC8927823 DOI: 10.1016/j.psj.2022.101715] [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: 10/04/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 01/08/2023] Open
Abstract
This review provides insight into the effects of the branched-chain amino acids (BCAA: leucine, isoleucine, and valine) on the growth, production performance, immunity, and intestinal health of poultry. Besides providing nitrogen substrates and carbon framework for energy homeostasis and transamination, BCAA also function as signaling molecules in the regulation of glucose, lipid, and protein synthesis via protein kinase B and as a mechanistic target of the rapamycin (AKT-mTOR) signaling pathway that is important for muscle accretion. The level of leucine is generally high in cereals and an imbalance in the ratio among the 3 BCAA in a low protein diet would produce a negative effect on poultry growth performance. This occurs due to the structural similarity of the 3 BCAA, which leads to metabolic competition and interference with the enzymatic degradation pathway. Emerging evidence shows that the inclusion of BCAA is essential for the proper functioning of the innate and adaptive immune system and the maintenance of intestinal mucosal integrity. The recommended levels of BCAA for poultry are outlined by NRC (1994), but commercial broilers and laying hen breed standards also determine their own recommended levels. In this review, it has been noted that the requirement for BCAA is influenced by the diet type, breed, and age of the birds. Additionally, several studies focused on the effects of BCAA in low protein diets as a strategy to reduce nitrogen excretion. Notably, there is limited research on the inclusion ratio of BCAA in a supplemental form as compared to the ingredient-bound form which would affect the dynamics of utilization in different disease-challenged conditions, especially those affecting digesta passage ratio. In summary, this review encompasses the role of BCAA as functional AA and discusses their physiological effects on the productivity and health of poultry. The observations and interpretations of this review can guide future research to adjust the recommended levels of BCAA in feeding programs in the absence of subtherapeutic antibiotics in poultry.
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Affiliation(s)
- Woo Kyun Kim
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA.
| | - Amit Kumar Singh
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Jinquan Wang
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
| | - Todd Applegate
- Department of Poultry Science, University of Georgia, Athens, GA 30602, USA
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12
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Trongtrakul K, Thonusin C, Pothirat C, Chattipakorn SC, Chattipakorn N. Past Experiences for Future Applications of Metabolomics in Critically Ill Patients with Sepsis and Septic Shocks. Metabolites 2021; 12:metabo12010001. [PMID: 35050123 PMCID: PMC8779293 DOI: 10.3390/metabo12010001] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/16/2021] [Accepted: 12/18/2021] [Indexed: 12/17/2022] Open
Abstract
A disruption of several metabolic pathways in critically ill patients with sepsis indicates that metabolomics might be used as a more precise tool for sepsis and septic shock when compared with the conventional biomarkers. This article provides information regarding metabolomics studies in sepsis and septic shock patients. It has been shown that a variety of metabolomic pathways are altered in sepsis and septic shock, including amino acid metabolism, fatty acid oxidation, phospholipid metabolism, glycolysis, and tricarboxylic acid cycle. Based upon this comprehensive review, here, we demonstrate that metabolomics is about to change the world of sepsis biomarkers, not only for its utilization in sepsis diagnosis, but also for prognosticating and monitoring the therapeutic response. Additionally, the future direction regarding the establishment of studies integrating metabolomics with other molecular modalities and studies identifying the relationships between metabolomic profiles and clinical characteristics to address clinical application are discussed in this article. All of the information from this review indicates the important impact of metabolomics as a tool for diagnosis, monitoring therapeutic response, and prognostic assessment of sepsis and septic shock. These findings also encourage further clinical investigations to warrant its use in routine clinical settings.
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Affiliation(s)
- Konlawij Trongtrakul
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (K.T.); (C.P.)
| | - Chanisa Thonusin
- Metabolomics Unit, Cardiac Electrophysiology Research and Training Center, Chiang Mai University, Chiang Mai 50200, Thailand;
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: (C.T.); (N.C.)
| | - Chaicharn Pothirat
- Department of Internal Medicine, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand; (K.T.); (C.P.)
| | - Siriporn C. Chattipakorn
- Metabolomics Unit, Cardiac Electrophysiology Research and Training Center, Chiang Mai University, Chiang Mai 50200, Thailand;
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
- Department of Oral Biology and Diagnostic Sciences, Faculty of Dentistry, Chiang Mai University, Chiang Mai 50200, Thailand
| | - Nipon Chattipakorn
- Metabolomics Unit, Cardiac Electrophysiology Research and Training Center, Chiang Mai University, Chiang Mai 50200, Thailand;
- Center of Excellence in Cardiac Electrophysiology Research, Chiang Mai University, Chiang Mai 50200, Thailand
- Cardiac Electrophysiology Unit, Department of Physiology, Faculty of Medicine, Chiang Mai University, Chiang Mai 50200, Thailand
- Correspondence: (C.T.); (N.C.)
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13
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Yau-Qiu ZX, Madrid-Gambin F, Brennan L, Palou A, Rodríguez AM. Leptin Supplementation During Lactation Restores Key Liver Metabolite Levels Malprogrammed by Gestational Calorie Restriction. Mol Nutr Food Res 2021; 65:e2001046. [PMID: 33900028 DOI: 10.1002/mnfr.202001046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2020] [Revised: 03/20/2021] [Indexed: 11/09/2022]
Abstract
INTRODUCTION Perinatal nutritional factors can program offspring metabolic phenotype and risk to obesity. This study investigates the potential role of leptin supplementation (during lactation) in ameliorating the malprogrammed effects caused by mild maternal calorie restriction during gestation, on young rat offspring liver metabolic response. METHODS AND RESULTS Untargeted and targeted metabolomics studies on liver samples are performed by NMR and GC-MS, respectively. Global DNA methylation and the expression by RT-PCR of key genes involved in different pathways are also determined. By NMR, 15 liver metabolites are observed to be altered in the offspring of gestational calorie-restricted dams (CR group), at days 25-27 of life. Physiological leptin supplementation during lactation partially reverted the effect of CR condition for most of these metabolites. Moreover, targeted fatty acid analysis by GC-MS shows a significant decrease in the hepatic concentration of certain very long-chain fatty acids (VLCFA) in CR offspring, partially or totally reverted by leptin supplementation. No remarkable changes are found in global DNA methylation or mRNA expression. CONCLUSION Physiological leptin supplementation during lactation contributes to the reversion of changes caused by maternal mild calorie restriction on the liver metabolome. This agrees with a putative role of leptin supplementation preventing or reversing metabolic disturbances caused by gestational metabolic malprogramming.
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Affiliation(s)
- Zhi Xin Yau-Qiu
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics and obesity), University of the Balearic Islands (UIB), Palma de Mallorca, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma de Mallorca, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
| | - Francisco Madrid-Gambin
- UCD School of Agriculture and Food Science, Institute of Food and Health, Conway Institute, University College Dublin (UCD), Dublin, Ireland.,Department of Psychiatry, Royal College of Surgeons in Ireland, Beaumont Hospital, Dublin, Ireland
| | - Lorraine Brennan
- UCD School of Agriculture and Food Science, Institute of Food and Health, Conway Institute, University College Dublin (UCD), Dublin, Ireland
| | - Andreu Palou
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics and obesity), University of the Balearic Islands (UIB), Palma de Mallorca, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma de Mallorca, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
| | - Ana María Rodríguez
- Laboratory of Molecular Biology, Nutrition and Biotechnology (Nutrigenomics and obesity), University of the Balearic Islands (UIB), Palma de Mallorca, Spain.,Health Research Institute of the Balearic Islands (IdISBa), Palma de Mallorca, Spain.,CIBER Fisiopatología de la Obesidad y Nutrición (CIBEROBN), Palma de Mallorca, Spain
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14
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Holeček M. The role of skeletal muscle in the pathogenesis of altered concentrations of branched-chain amino acids (valine, leucine, and isoleucine) in liver cirrhosis, diabetes, and other diseases. Physiol Res 2021; 70:293-305. [PMID: 33982576 DOI: 10.33549/physiolres.934648] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
The article shows that skeletal muscle plays a dominant role in the catabolism of branched-chain amino acids (BCAAs; valine, leucine, and isoleucine) and the pathogenesis of their decreased concentrations in liver cirrhosis, increased concentrations in diabetes, and nonspecific alterations in disorders with signs of systemic inflammatory response syndrome (SIRS), such as burn injury and sepsis. The main role of skeletal muscle in BCAA catabolism is due to its mass and high activity of BCAA aminotransferase, which is absent in the liver. Decreased BCAA levels in liver cirrhosis are due to increased use of the BCAA as a donor of amino group to alpha-ketoglutarate for synthesis of glutamate, which in muscles acts as a substrate for ammonia detoxification to glutamine. Increased BCAA levels in diabetes are due to alterations in glycolysis, citric acid cycle, and fatty acid oxidation. Decreased glycolysis and citric cycle activity impair BCAA transamination to branched-chain keto acids (BCKAs) due to decreased supply of amino group acceptors (alpha-ketoglutarate, pyruvate, and oxaloacetate); increased fatty acid oxidation inhibits flux of BCKA through BCKA dehydrogenase due to increased supply of NADH and acyl-CoAs. Alterations in BCAA levels in disorders with SIRS are inconsistent due to contradictory effects of SIRS on muscles. Specifically, increased proteolysis and insulin resistance tend to increase BCAA levels, whereas activation of BCKA dehydrogenase and glutamine synthesis tend to decrease BCAA levels. The studies are needed to elucidate the role of alterations in BCAA metabolism and the effects of BCAA supplementation on the outcomes of specific diseases.
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Affiliation(s)
- M Holeček
- Faculty of Medicine in Hradec Králové, Charles University, Hradec Králové, Czech Republic.
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15
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Bonvini A, Rogero MM, Coqueiro AY, Raizel R, Bella LM, Fock RA, Borelli P, Tirapegui J. Effects of different branched-chain amino acids supplementation protocols on the inflammatory response of LPS-stimulated RAW 264.7 macrophages. Amino Acids 2021; 53:597-607. [PMID: 33715068 DOI: 10.1007/s00726-021-02940-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 01/07/2021] [Indexed: 12/30/2022]
Abstract
Although branched-chain amino acids (BCAA) are commonly used as a strategy to recover nutritional status of critically ill patients, recent findings on their role as immunonutrients have been associated with unfavorable outcomes, especially in obese patients. The present study aimed to explore the effects of different BCAA supplementation protocols in the inflammatory response of LPS-stimulated RAW 264.7 macrophages. Cell cultures were divided into five groups, with and without BCAA supplementation, (2 mmol/L of each amino acid). Then, cell cultures followed three different treatment protocols, consisting of a pretreatment (PT), an acute treatment (AT), and a chronic treatment (CT) with BCAA and LPS stimulation (1 µg/mL). Cell viability was analyzed by MTT assay, NO production was assessed by the Griess reaction and IL-6, IL-10, TNF-α and PGE2 synthesis, was evaluated by ELISA. BCAA significantly increased cell viability in AT and CT protocols, and NO and IL-10 synthesis in all treatment protocols. IL-6 synthesis was only increased in PT and CT protocols. TNF-α and PGE2 synthesis were not altered in any of the protocols and groups. BCAA supplementation was able to increase both pro and anti-inflammatory mediators synthesis by RAW 264.7 macrophages, which was influenced by the protocol applied. Moreover, these parameters were significantly increased by isoleucine supplementation, highlighting a potential research field for future studies.
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Affiliation(s)
- Andrea Bonvini
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Avenida Professor Lineu Prestes, 580, Butantã, Sao Paulo, 05508-000, Brazil.
| | - Marcelo Macedo Rogero
- Department of Nutrition, Faculty of Public Health, University of Sao Paulo, Sao Paulo, Brazil
| | - Audrey Yule Coqueiro
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Avenida Professor Lineu Prestes, 580, Butantã, Sao Paulo, 05508-000, Brazil
| | - Raquel Raizel
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Avenida Professor Lineu Prestes, 580, Butantã, Sao Paulo, 05508-000, Brazil
| | - Leonardo Mendes Bella
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Ricardo Ambrosio Fock
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Primavera Borelli
- Department of Clinical Analysis, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Sao Paulo, Brazil
| | - Julio Tirapegui
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of Sao Paulo, Avenida Professor Lineu Prestes, 580, Butantã, Sao Paulo, 05508-000, Brazil
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16
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Barati-Boldaji R, Esmaeilinezhad Z, Babajafari S, Kazemi A, Clark CC, Mazidi M, Ofori-Asenso R, Haghighat N, Shafiee M, Mazloomi SM. Bariatric surgery reduces branched-chain amino acids’ levels: a systematic review and meta-analysis. Nutr Res 2021; 87:80-90. [DOI: 10.1016/j.nutres.2020.10.008] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2020] [Revised: 10/20/2020] [Accepted: 10/23/2020] [Indexed: 12/14/2022]
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17
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Montalcini T, Pujia A, Donini LM, Frittitta L, Galvano F, Natali A, Pironi L, Porrini M, Riso P, Rivellese AA, Russo D, Scapagnini G, Serafini M, Tagliabue A, De Lorenzo A. A Call to Action: Now Is the Time to Screen Elderly and Treat Osteosarcopenia, a Position Paper of the Italian College of Academic Nutritionists MED/49 (ICAN-49). Nutrients 2020; 12:E2662. [PMID: 32878316 PMCID: PMC7550989 DOI: 10.3390/nu12092662] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 08/24/2020] [Accepted: 08/28/2020] [Indexed: 02/06/2023] Open
Abstract
Aging is a risk factor for the development of multiple chronic diseases, including cardiovascular disease, cancer and dementia. Life expectancy has increased in certain countries but this phenomenon is associated with a reduction of years of healthy life. Aging is associated with a number of physical and functional changes, especially sarcopenia. Sarcopenia is a clinical condition associated with a decrease in skeletal muscle and muscle strength, however, sarcopenia is a reversible condition. On the basis of the current scientific literature, sarcopenia could more appropriately capture an individual's vulnerability to negative health-related outcomes since it represents an early form of the chronic diseases. Recognition of this clinical condition can improve the management of older individuals in many different clinical settings. Despite the limitations of the indirect methods used to study body composition, the Italian College of the Academic Nutritionists ME/49 recommends that health authorities and health professionals around the world should make a greater effort to diagnose sarcopenia earlier and to manage it more effectively. In line with the development of cancer screening, the use of two diagnostic tools for sarcopenia (BIA and DXA) should be implemented.
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Affiliation(s)
- Tiziana Montalcini
- Department of Clinical and Experiment Medicine, University of Catanzaro Magna Grecia, Viale Europa, 88100 Catanzaro, Italy;
| | - Arturo Pujia
- Department of Clinical and Experiment Medicine, University of Catanzaro Magna Grecia, Viale Europa, 88100 Catanzaro, Italy;
| | - Lorenzo M. Donini
- Department of Experimental Medicine, University of la Sapienza, Piazzale Aldo Moro 5, 00185 Rome, Italy;
| | - Lucia Frittitta
- Department of Clinical and Experiment Medicine, University of Catania, Via Santa Sofia, 86-95123 Catania, Italy;
| | - Fabio Galvano
- Department of Biomedical and Biotechnology Science, University of Catania, Via Santa Sofia, 86-95123 Catania, Italy;
| | - Andrea Natali
- Department of Clinical and Experiment Medicine, University of Pisa, Lungarno Antonio Pacinotti, 43, 56126 Pisa, Italy;
| | - Loris Pironi
- Department of Medical and Surgical Science, University of Bologna, Via Pupilli, 1, 40136 Bologna, Italy;
| | - Marisa Porrini
- Department of Food, Nutrition and Environment Science, University of Milan, Via Festa del Perdono, 7, 20122 Milano, Italy; (M.P.); (P.R.)
| | - Patrizia Riso
- Department of Food, Nutrition and Environment Science, University of Milan, Via Festa del Perdono, 7, 20122 Milano, Italy; (M.P.); (P.R.)
| | - Angela Albarosa Rivellese
- Department of Clinical and Experiment Medicine, University of Naples Federico II, Corso Umberto I, 40, 80138 Napoli, Italy;
| | - Diego Russo
- Department of Health Science, University of Catanzaro Magna Grecia, Viale Europa, 88100 Catanzaro, Italy;
| | - Giovanni Scapagnini
- Department of Medicine and Health Science, University of Molise, Via F. De Sanctis, 86100 Campobasso, Italy;
| | - Mauro Serafini
- Department of Bioscience and food technology, University of Teramo, Via Renato Balzarini, 1, 64100 Teramo, Italy;
| | - Anna Tagliabue
- Department of Public Health, University of Pavia, Corso Str. Nuova, 65, 27100 Pavia, Italy;
| | - Antonino De Lorenzo
- Biomedicine and Prevention, University of Tor Vergata, Via Montpellier, 1, 00133 Roma, Italy;
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18
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Dietary intake of specific amino acids and liver status in subjects with nonalcoholic fatty liver disease: fatty liver in obesity (FLiO) study. Eur J Nutr 2020; 60:1769-1780. [PMID: 32857176 DOI: 10.1007/s00394-020-02370-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2020] [Accepted: 08/19/2020] [Indexed: 12/18/2022]
Abstract
PURPOSE Identification of dietary factors involved in the development and progression of nonalcoholic fatty liver disease (NAFLD) is relevant to the current epidemics of the disease. Dietary amino acids appear to play a key role in the onset and progression of NAFLD. The aim of this study was to analyze potential associations between specific dietary amino acids and variables related to glucose metabolism and hepatic status in adults with overweight/obesity and NAFLD. METHODS One hundred and twelve individuals from the Fatty Liver in Obesity (FLiO) study were evaluated. Liver assessment was carried out by ultrasonography, magnetic resonance imaging and analysis of biochemical parameters. Dietary amino acid intake (aromatic amino acids (AAA); branched-chain amino acids (BCAA); sulfur amino acids (SAA)) was estimated by means of a validated 137-item food frequency questionnaire. RESULTS Higher consumption of these amino acids was associated with worse hepatic health. Multiple adjusted regression models confirmed that dietary AAA, BCAA and SAA were positively associated with liver fat content. AAA and BCAA were positively associated with liver iron concentration. Regarding ferritin levels, a positive association was found with BCAA. Dietary intake of these amino acids was positively correlated with glucose metabolism (glycated hemoglobin, triglyceride and glucose index) although the significance disappeared when potential confounders were included in the model. CONCLUSION These findings suggest that the consumption of specific dietary amino acids might negatively impact on liver status and, to a lesser extent on glucose metabolism in subjects with overweight/obesity and NAFLD. A control of specific dietary amino acid composition should be considered in the management of NAFLD and associated insulin resistance. NCT03183193; June 2017.
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19
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Huang Z, Xu J, Yongky A, Morris CS, Polanco AL, Reily M, Borys MC, Li ZJ, Yoon S. CHO cell productivity improvement by genome-scale modeling and pathway analysis: Application to feed supplements. Biochem Eng J 2020. [DOI: 10.1016/j.bej.2020.107638] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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20
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Affiliation(s)
- Yumin Bao
- Animal nutrition, Redox Pty Ltd, Minto, Australia
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21
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Coelho-Junior HJ, Calvani R, Picca A, Gonçalves IO, Landi F, Bernabei R, Cesari M, Uchida MC, Marzetti E. Association between Dietary Habits and Physical Function in Brazilian and Italian Older Women. Nutrients 2020; 12:nu12061635. [PMID: 32492947 PMCID: PMC7352596 DOI: 10.3390/nu12061635] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/25/2020] [Accepted: 05/26/2020] [Indexed: 01/04/2023] Open
Abstract
The present study investigated and compared the patterns of dietary protein intake and physical function in Brazilian and Italian older women. Seventy-five Brazilian older women were recruited in a community senior center. Fifty-three age-matched Italian older women were selected from participants of the Longevity check-up (Lookup) 7+ study. In both samples, physical performance was evaluated by isometric handgrip strength (IHG) and five-time sit-to-stand (5 × STS) tests, while diet was assessed through 24-h recall. Results indicated that Brazilian women had a higher intake of plant-based protein (52.7% vs. 30.5% kcal), while Italian women consumed greater amounts of animal-derived protein (29.7% vs. 41.5% kcal). In Brazilian women, the binary logistic regression analysis indicated that body weight-adjusted protein consumption was associated with IHG adjusted by body mass index and with 5 × STS performance. In the Italian sample, the intake of isoleucine, leucine, and valine was significantly associated with 5 × STS performance. Our findings indicate that Brazilian and Italian community-dwelling older women show different patterns of protein intake, with higher consumption of plant-based protein in the Brazilian sample and higher ingestion of animal-derived protein in the Italian subgroup. These dietary patterns may differentially impact the relationship between physical function and protein intake observed in Brazilian and Italian older women.
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Affiliation(s)
- Hélio J. Coelho-Junior
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.L.); (E.M.)
- Applied Kinesiology Laboratory–LCA, School of Physical Education, University of Campinas, Campinas 13083-970, Brazil;
- Mãe Mariana Home, Rehabilitation Unit, Poá 08562-460, Brazil
- Correspondence: (H.J.C.-J.); (R.B.); Tel.: +39-(06)-3015-5559 (R.B.)
| | - Riccardo Calvani
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (R.C.); (A.P.)
| | - Anna Picca
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (R.C.); (A.P.)
| | - Ivan O. Gonçalves
- Center of Health Sciences, University of Mogi das Cruzes, Mogi das Cruzes 08780-911, Brazil;
| | - Francesco Landi
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.L.); (E.M.)
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (R.C.); (A.P.)
| | - Roberto Bernabei
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.L.); (E.M.)
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (R.C.); (A.P.)
- Correspondence: (H.J.C.-J.); (R.B.); Tel.: +39-(06)-3015-5559 (R.B.)
| | - Matteo Cesari
- Department of Clinical Sciences and Community Health, Università di Milano, 20122 Milan, Italy;
- Geriatric Unit, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico, 20122 Milan, Italy
| | - Marco C. Uchida
- Applied Kinesiology Laboratory–LCA, School of Physical Education, University of Campinas, Campinas 13083-970, Brazil;
| | - Emanuele Marzetti
- Università Cattolica del Sacro Cuore, 00168 Rome, Italy; (F.L.); (E.M.)
- Fondazione Policlinico Universitario “Agostino Gemelli” IRCCS, 00168 Rome, Italy; (R.C.); (A.P.)
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22
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Zeitz JO, Käding SC, Niewalda IR, Most E, Dorigam JCDP, Eder K. The influence of dietary leucine above recommendations and fixed ratios to isoleucine and valine on muscle protein synthesis and degradation pathways in broilers. Poult Sci 2020; 98:6772-6786. [PMID: 31250025 PMCID: PMC8913973 DOI: 10.3382/ps/pez396] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2018] [Accepted: 06/13/2019] [Indexed: 01/30/2023] Open
Abstract
This study investigated the hypothesis that dietary supplementation of leucine (Leu) above actual recommendations activates protein synthesis and inhibits protein degradation pathways on the molecular level and supports higher muscle growth in broilers. Day-old male Cobb-500 broilers (n = 180) were allotted to 3 groups and phase-fed 3 different corn-wheat-soybean meal-based basal diets during periods 1 to 10, 11 to 21, and 22 to 35 D. The control group (L0) received the basal diet which met the broiler's requirements of nutrients and amino acids for maintenance and growth. Groups L1 and L2 received basal diets supplemented with Leu to exceed recommendations by 35 and 60%, respectively, and isoleucine (Ile) and valine (Val) were supplemented to keep Leu: Ile and Leu: Val ratios fixed. Samples of liver and breast muscle and pancreas were collected on days 10, 21, and 35. The gene expression and abundance of total and phosphorylated proteins involved in the mammalian target of rapamycin pathway of protein synthesis, in the ubiquitin-proteasome pathway and autophagy-lysosomal pathway of protein degradation, in the general control nonderepressible 2/eukaryotic translation initiation factor 2A pathway involved in the inhibition of protein synthesis, and in the myostatin-Smad2/3 pathway involved in myogenesis were evaluated in the muscle, as well as expression of genes involved in the growth hormone axis. Growth performance, feed intake, the feed conversion ratio, and carcass weights did not differ between the 3 groups (P > 0.05). Plasma concentrations of Leu, Ile, and Val and of their keto acids, and the activity of the branched-chain α-keto acid dehydrogenase in the pancreas increased dose dependently with increasing dietary Leu concentrations. In the breast muscle, relative mRNA abundances of genes and phosphorylation of selected proteins involved in all investigated pathways were largely uninfluenced by dietary Leu supplementation (P > 0.05). In summary, these data indicate that excess dietary Leu concentrations do not influence protein synthesis or degradation pathways, and subsequently do not increase muscle growth in broilers at fixed ratios to Ile and Val.
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Affiliation(s)
- Johanna O Zeitz
- Institute of Animal Nutrition and Nutritional Physiology, University of Giessen, Heinrich-Buff-Ring 26-32 (IFZ), D-35392 Giessen, Germany
| | - Stella-Christin Käding
- Institute of Animal Nutrition and Nutritional Physiology, University of Giessen, Heinrich-Buff-Ring 26-32 (IFZ), D-35392 Giessen, Germany
| | - Ines R Niewalda
- Institute of Animal Nutrition and Nutritional Physiology, University of Giessen, Heinrich-Buff-Ring 26-32 (IFZ), D-35392 Giessen, Germany
| | - Erika Most
- Institute of Animal Nutrition and Nutritional Physiology, University of Giessen, Heinrich-Buff-Ring 26-32 (IFZ), D-35392 Giessen, Germany
| | | | - Klaus Eder
- Institute of Animal Nutrition and Nutritional Physiology, University of Giessen, Heinrich-Buff-Ring 26-32 (IFZ), D-35392 Giessen, Germany
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23
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Holz O, DeLuca DS, Roepcke S, Illig T, Weinberger KM, Schudt C, Hohlfeld JM. Smokers with COPD Show a Shift in Energy and Nitrogen Metabolism at Rest and During Exercise. Int J Chron Obstruct Pulmon Dis 2020; 15:1-13. [PMID: 32021139 PMCID: PMC6956026 DOI: 10.2147/copd.s217474] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 11/21/2019] [Indexed: 11/23/2022] Open
Abstract
Purpose There is an ongoing demand for easily accessible biomarkers that reflect the physiological and pathophysiological mechanisms of COPD. To test if an exercise challenge could help to identify clinically relevant metabolic biomarkers in COPD. Patients and Methods We performed two constant-load exercise challenges separated by 4 weeks including smokers with COPD (n=23/19) and sex- and age-matched healthy smokers (n=23/20). Two hours after a standardized meal venous blood samples were obtained before, 5 mins after the start, at the end of submaximal exercise, and following a recovery of 20 mins. Data analysis was performed using mixed- effects model, with the metabolite level as a function of disease, time point and interaction terms and using each individual's resting level as reference. Results Exercise duration was longer in healthy smokers but lactate levels were comparable between groups at all four time points. Glucose levels were increased in COPD. Glutamine was lower, while glutamate and arginine were higher in COPD. Branched-chain amino acids showed a stronger decline during exercise in healthy smokers. Carnitine and the acyl-carnitines C16 and C18:1 were increased in COPD. These metabolite levels and changes were reproducible in the second challenge. Conclusion Higher serum glucose, evidence for impaired utilization of amino acids during exercise and a shift of energy metabolism to enhanced consumption of lipids could be early signs for a developing metabolic syndrome in COPD. In COPD patients, deviations of energy and nitrogen metabolism are amplified by an exercise challenge.
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Affiliation(s)
- Olaf Holz
- Fraunhofer ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover, Germany
| | - David S DeLuca
- Hannover Medical School, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover, Germany
| | - Stefan Roepcke
- Department of Biomarker Development, Takeda Pharmaceuticals International GmbH, Zürich, Switzerland
| | - Thomas Illig
- Hannover Medical School, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover, Germany
| | - Klaus M Weinberger
- Biocrates Life Sciences AG, Innsbruck, Austria.,Research Group for Clinical Bioinformatics, Private University for Health Sciences, Medical Informatics and Technology, Hall in Tirol, Austria.,sAnalytiCo Ltd, Belfast, Ireland
| | | | - Jens M Hohlfeld
- Fraunhofer ITEM, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover, Germany.,Hannover Medical School, Biomedical Research in Endstage and Obstructive Lung Disease Hannover (BREATH), German Center for Lung Research, Hannover, Germany
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Yoshida T, Nakajima H, Takahashi S, Kakizuka A, Imamura H. OLIVe: A Genetically Encoded Fluorescent Biosensor for Quantitative Imaging of Branched-Chain Amino Acid Levels inside Single Living Cells. ACS Sens 2019; 4:3333-3342. [PMID: 31845569 DOI: 10.1021/acssensors.9b02067] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Branched-chain amino acids (BCAAs) are essential amino acids, controlling cellular metabolic processes as signaling molecules; therefore, utilization of intracellular BCAAs may be regulated by the availability of nutrients in the environment. However, spatial and temporal regulation of intracellular BCAA concentration in response to environmental conditions has been unclear due to the lack of suitable methods for measuring BCAA concentrations inside single living cells. Here, we developed a Förster resonance energy transfer (FRET)-based genetically encoded biosensor for BCAAs, termed optical biosensor for leucine-isoleucine-valine (OLIVe). The biosensor showed approximately 2-fold changes in FRET values corresponding to BCAA concentrations. Importantly, FRET signals from HeLa cells expressing OLIVe in the cytoplasm and nucleus correlated with bulk intracellular BCAA concentrations determined from populations of cells by a biochemical method, and were decreased by knockdown of L-type amino acid transporter 1 (LAT1), a transporter for BCAAs, indicating that OLIVe can reliably report intracellular BCAA concentrations inside single living cells. We also succeeded in imaging BCAA concentrations in the mitochondria using mitochondria-targeted OLIVe. Using the BCAA imaging technique, we found apparently correlated concentrations between the cytoplasm and the mitochondria. We also found that extracellular non-BCAA amino acids affected intracellular BCAA concentrations. Of these amino acids, extracellular glutamine markedly increased intracellular BCAA concentrations in a LAT1-dependent manner. Unexpectedly, extracellular pyruvate was also found to have significant positive effects on maintaining intracellular BCAA concentrations, suggesting that the cells have pyruvate-dependent systems to import BCAAs and/or to regulate BCAA metabolism.
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Affiliation(s)
- Tomoki Yoshida
- Department of Functional Biology, Graduate School of Biostudies, Kyoto University, Yoshida-konoe-cho,
Sakyo-ku, Kyoto 606-8501, Japan
| | - Hitomi Nakajima
- Department of Functional Biology, Graduate School of Biostudies, Kyoto University, Yoshida-konoe-cho,
Sakyo-ku, Kyoto 606-8501, Japan
| | - Sena Takahashi
- Department of Functional Biology, Graduate School of Biostudies, Kyoto University, Yoshida-konoe-cho,
Sakyo-ku, Kyoto 606-8501, Japan
| | - Akira Kakizuka
- Department of Functional Biology, Graduate School of Biostudies, Kyoto University, Yoshida-konoe-cho,
Sakyo-ku, Kyoto 606-8501, Japan
| | - Hiromi Imamura
- Department of Functional Biology, Graduate School of Biostudies, Kyoto University, Yoshida-konoe-cho,
Sakyo-ku, Kyoto 606-8501, Japan
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Zhu R, Allingstrup MJ, Perner A, Doig GS. The Effect of IV Amino Acid Supplementation on Mortality in ICU Patients May Be Dependent on Kidney Function: Post Hoc Subgroup Analyses of a Multicenter Randomized Trial. Crit Care Med 2019; 46:1293-1301. [PMID: 29771700 DOI: 10.1097/ccm.0000000000003221] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
OBJECTIVES We investigated whether preexisting kidney function determines if ICU patients may benefit from increased (2.0 g/kg/d) protein intake. DESIGN Post hoc, hypothesis-generating, subgroup analysis of a multicenter, phase 2, randomized clinical trial. All analyses were conducted by intention to treat and maintained group allocation. Ninety-day mortality was the primary outcome. SETTING ICUs of 16 hospitals throughout Australia and New Zealand. PATIENTS Adult critically ill patients expected to remain in the study ICU for longer than 2 days. INTERVENTIONS Random allocation to receive a daily supplement of up to 100 g of IV amino acids to achieve a total protein intake of 2.0 g/kg/d or standard nutrition care. MEASUREMENTS AND MAIN RESULTS A total of 474 patients were randomized: 235 to standard care and 239 to IV amino acid supplementation. There was a statistically significant interaction between baseline kidney function and supplementation with study amino acids (p value for interaction = 0.026). Within the subgroup of patients with normal kidney function at randomization, patients who were allocated to receive the study amino acid supplement were less likely to die before study day 90 (covariate-adjusted risk difference, -7.9%; 95% CI, -15.1 to -0.7; p = 0.034). Furthermore, amino acid supplementation significantly increased estimated glomerular filtration rate in these patients (repeated-measures treatment × time interaction p = 0.009). Within the subgroup of patients with baseline kidney dysfunction and/or risk of progression of acute kidney injury, a significant effect of the study intervention on mortality was not found (covariate-adjusted risk difference, -0.6%; 95% CI, -16.2 to 15.2; p = 0.95). CONCLUSIONS In this post hoc, hypothesis-generating, subgroup analysis, we observed reduced mortality and improved estimated glomerular filtration rate in ICU patients with normal kidney function who were randomly allocated to receive increased protein intake (up to 2.0 g/kg/d). We strongly recommend confirmation of these results in trials with low risk of bias before this treatment is recommended for routine care.
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Affiliation(s)
- Ran Zhu
- Northern Clinical School Intensive Care Research Unit, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
| | - Matilde J Allingstrup
- Northern Clinical School Intensive Care Research Unit, Sydney Medical School, University of Sydney, Sydney, NSW, Australia.,Department of Intensive Care, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Anders Perner
- Department of Intensive Care, Rigshospitalet, University of Copenhagen, Copenhagen, Denmark
| | - Gordon S Doig
- Northern Clinical School Intensive Care Research Unit, Sydney Medical School, University of Sydney, Sydney, NSW, Australia
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26
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Zeitz JO, Käding SC, Niewalda IR, Machander V, de Paula Dorigam JC, Eder K. Effects of leucine supplementation on muscle protein synthesis and degradation pathways in broilers at constant dietary concentrations of isoleucine and valine. Arch Anim Nutr 2019; 73:75-87. [PMID: 30821190 DOI: 10.1080/1745039x.2019.1583519] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The present study investigated the hypothesis that dietary concentrations of leucine (Leu) in excess of the breeder´s recommendations activates protein synthesis and decreases protein degradation in muscle of broilers. Day-old male Ross 308 broilers (n = 450) were phase-fed corn-soybean meal-based diets during starter (d 1-10), grower (d 11-22), and finisher (d 23-34) period. The basal diets fed to the control group (L0) met the broilers' requirements for nutrients and amino acids, and contained Leu, Leu:isoleucine (Ile) and Leu:valine (Val) ratios, close to those recommended by the breeder (Leu:Ile: 100:54, 100:52, 100:51; Leu:Val 100:64, 100:61, 100:58; in starter, grower and finisher diet, resp.). Basal diets were supplemented with Leu to exceed the breeder's recommendations by 35% (group L35) and 60% (group L60). Growth performance during 34 d, and carcass weights, and breast and thigh muscle weights on d 34 were similar among groups. Hepatic and muscle mRNA levels of genes involved in the somatotropic axis [growth hormone receptor, insulin-like growth factor (IGF)-1, IGF binding protein 2, IGF receptor] on d 34 were not influenced by Leu. In the breast muscle, relative mRNA abundances of genes involved in the mammalian target of rapamycin (mTOR) pathway of protein synthesis (mTOR, ribosomal p70 S6 kinase) and the ubiquitin-proteasome pathway of protein degradation (F-box only protein 32, Forkhead box protein O1, Muscle RING-finger protein-1) on d 34 were largely similar among groups. Likewise, relative phosphorylation and thus activation of mTOR and ribosomal protein S6 involved in the mTOR pathway, and of eukaryotic translation initiation factor 2A (eIF2a) involved in the general control nonderepressible 2 (GCN2)/eIF2a pathway of protein synthesis inhibition, were not influenced. These data indicate that dietary Leu concentrations exceeding the broiler´s requirements up to 60% neither influence protein synthesis nor degradation pathways nor muscle growth in growing broilers.
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Affiliation(s)
- Johanna O Zeitz
- a Institute of Animal Nutrition and Nutritional Physiology , University of Giessen , Giessen , Germany
| | - Stella-Christin Käding
- a Institute of Animal Nutrition and Nutritional Physiology , University of Giessen , Giessen , Germany
| | - Ines R Niewalda
- a Institute of Animal Nutrition and Nutritional Physiology , University of Giessen , Giessen , Germany
| | | | | | - Klaus Eder
- a Institute of Animal Nutrition and Nutritional Physiology , University of Giessen , Giessen , Germany
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27
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Hudd F, Shiel A, Harris M, Bowdler P, McCann B, Tsivos D, Wearn A, Knight M, Kauppinen R, Coulthard E, White P, Conway ME. Novel Blood Biomarkers that Correlate with Cognitive Performance and Hippocampal Volumetry: Potential for Early Diagnosis of Alzheimer’s Disease. J Alzheimers Dis 2019; 67:931-947. [PMID: 30689581 DOI: 10.3233/jad-180879] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Fred Hudd
- Faculty of Health and Life Sciences, University of the West of England, Bristol, UK
| | - Anna Shiel
- Faculty of Health and Life Sciences, University of the West of England, Bristol, UK
| | - Matthew Harris
- Faculty of Health and Life Sciences, University of the West of England, Bristol, UK
| | - Paul Bowdler
- Faculty of Health and Life Sciences, University of the West of England, Bristol, UK
| | - Bryony McCann
- Clinical Research and Imaging Centre (CRICBristol), University of Bristol, Bristol, UK
| | - Demitra Tsivos
- Dementia Research Group, Faculty of Medicine and Dentistry, University of Bristol, Bristol, UK
| | - Alfie Wearn
- Dementia Research Group, Faculty of Medicine and Dentistry, University of Bristol, Bristol, UK
| | - Michael Knight
- Clinical Research and Imaging Centre (CRICBristol), University of Bristol, Bristol, UK
| | - Risto Kauppinen
- Clinical Research and Imaging Centre (CRICBristol), University of Bristol, Bristol, UK
| | - Elizabeth Coulthard
- Dementia Research Group, Faculty of Medicine and Dentistry, University of Bristol, Bristol, UK
| | - Paul White
- Faculty of Health and Life Sciences, University of the West of England, Bristol, UK
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28
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Bonvini A, Coqueiro AY, Tirapegui J, Calder PC, Rogero MM. Immunomodulatory role of branched-chain amino acids. Nutr Rev 2018; 76:840-856. [DOI: 10.1093/nutrit/nuy037] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Affiliation(s)
- Andrea Bonvini
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Audrey Y Coqueiro
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Julio Tirapegui
- Department of Food and Experimental Nutrition, Faculty of Pharmaceutical Sciences, University of São Paulo, São Paulo, Brazil
| | - Philip C Calder
- Human Development and Health Academic Unit, Faculty of Medicine, University of Southampton, Southampton, United Kingdom
- NIHR Southampton Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust and University of Southampton, Southampton, United Kingdom
| | - Marcelo M Rogero
- Department of Nutrition, Faculty of Public Health, University of São Paulo, São Paulo, Brazil
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Huynh TG, Cheng AC, Chi CC, Chiu KH, Liu CH. A synbiotic improves the immunity of white shrimp, Litopenaeus vannamei: Metabolomic analysis reveal compelling evidence. FISH & SHELLFISH IMMUNOLOGY 2018; 79:284-293. [PMID: 29778843 DOI: 10.1016/j.fsi.2018.05.031] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2017] [Revised: 05/10/2018] [Accepted: 05/16/2018] [Indexed: 06/08/2023]
Abstract
In this study, we examined the synergistic effects of a diet-administered synbiotic comprising galactooligosaccharide (GOS) and the probiotic Lactobacillus plantarum 7-40 on immune responses, immune-related gene expressions, and disease resistance to Vibrio alginolyticus in white shrimp Litopenaeus vannamei. To unravel the regulatory role of the synbiotic in activating the immune system of shrimp, 1H nuclear magnetic resonance (NMR)-based metabolomic analysis were used to investigate hepatopancreas metabolites, then significantly altered metabolites were confirmed in both the hepatopancreas and plasma by reverse-phase high-performance liquid chromatography (RP-HPLC) and spectrophotometric analysis. Shrimp were fed four experimental diets for 60 days, including a basal diet with no GOS or probiotic (control), 0.4% GOS (PRE), probiotic (PRO), and 0.4% GOS in combination with the probiotic (SYN). Results showed that the SYN diet significantly increased survival of L. vannamei 24 h after a V. alginolyticus injection. Immune parameters such as phenoloxidase activity, respiratory bursts, phagocytic activity and gene expressions, including prophenoloxidase I, serine proteinase, and peroxinectin, of shrimp fed the SYN diet significantly increased, compared to the other treatments and control. In addition, results from the 1H NMR analysis revealed that 22 hepatopancreas metabolites were matched and identified between the SYN and control groups, among which three metabolites, i.e., inosine monophosphate (IMP), valine, and betaine, significantly increased in the SYN group. Confirmation using RP-HPLC and spectrophotometric methods showed that IMP presented high amounts in the hepatopancreas, but not in the plasma of shrimp; in contrast, valine and betaine metabolites were in high concentrations in both the hepatopancreas and plasma. Our results suggested that GOS and the probiotic had a synergistic effect on enhancing immunity and disease resistance of L. vannamei against V. alginolyticus infection through inducing syntheses of a nucleotide (IMP), a branched amino acid (valine), and a methyl group donor (betaine) in the hepatopancreas, which were then released into the plasma and directly taken up by hemocytes, resulting in a triggering of melanization and phagocytosis processes in cells.
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Affiliation(s)
- Truong-Giang Huynh
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan; College of Aquaculture and Fisheries, Can Tho University, Can Tho, Viet Nam
| | - Ann-Chang Cheng
- Department of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung 80424, Taiwan
| | - Chia-Chun Chi
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan
| | - Kuo-Hsun Chiu
- Department of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung 80424, Taiwan.
| | - Chun-Hung Liu
- Department of Aquaculture, National Pingtung University of Science and Technology, Pingtung 912, Taiwan; Research Center for Animal biologics, National Pingtung University of Science and Technology, Pingtung 912, Taiwan.
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30
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Holeček M. Branched-chain amino acids in health and disease: metabolism, alterations in blood plasma, and as supplements. Nutr Metab (Lond) 2018; 15:33. [PMID: 29755574 PMCID: PMC5934885 DOI: 10.1186/s12986-018-0271-1] [Citation(s) in RCA: 382] [Impact Index Per Article: 63.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2018] [Accepted: 04/18/2018] [Indexed: 02/07/2023] Open
Abstract
Branched-chain amino acids (BCAAs; valine, leucine, and isoleucine) are essential amino acids with protein anabolic properties, which have been studied in a number of muscle wasting disorders for more than 50 years. However, until today, there is no consensus regarding their therapeutic effectiveness. In the article is demonstrated that the crucial roles in BCAA metabolism play: (i) skeletal muscle as the initial site of BCAA catabolism accompanied with the release of alanine and glutamine to the blood; (ii) activity of branched-chain keto acid dehydrogenase (BCKD); and (iii) amination of branched-chain keto acids (BCKAs) to BCAAs. Enhanced consumption of BCAA for ammonia detoxification to glutamine in muscles is the cause of decreased BCAA levels in liver cirrhosis and urea cycle disorders. Increased BCKD activity is responsible for enhanced oxidation of BCAA in chronic renal failure, trauma, burn, sepsis, cancer, phenylbutyrate-treated subjects, and during exercise. Decreased BCKD activity is the main cause of increased BCAA levels and BCKAs in maple syrup urine disease, and plays a role in increased BCAA levels in diabetes type 2 and obesity. Increased BCAA concentrations during brief starvation and type 1 diabetes are explained by amination of BCKAs in visceral tissues and decreased uptake of BCAA by muscles. The studies indicate beneficial effects of BCAAs and BCKAs in therapy of chronic renal failure. New therapeutic strategies should be developed to enhance effectiveness and avoid adverse effects of BCAA on ammonia production in subjects with liver cirrhosis and urea cycle disorders. Further studies are needed to elucidate the effects of BCAA supplementation in burn, trauma, sepsis, cancer and exercise. Whether increased BCAA levels only markers are or also contribute to insulin resistance should be known before the decision is taken regarding their suitability in obese subjects and patients with type 2 diabetes. It is concluded that alterations in BCAA metabolism have been found common in a number of disease states and careful studies are needed to elucidate their therapeutic effectiveness in most indications.
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Affiliation(s)
- Milan Holeček
- Department of Physiology, Faculty of Medicine in Hradec Kralove, Charles University, Simkova 870, 500 03, Hradec Kralove, Czech Republic
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31
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Metabolism of branched-chain amino acids revealed by transcriptome analysis in Vibrio alginolyticus. Mar Genomics 2017; 35:23-26. [DOI: 10.1016/j.margen.2017.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Revised: 03/27/2017] [Accepted: 03/27/2017] [Indexed: 11/21/2022]
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Fouré A, Bendahan D. Is Branched-Chain Amino Acids Supplementation an Efficient Nutritional Strategy to Alleviate Skeletal Muscle Damage? A Systematic Review. Nutrients 2017; 9:nu9101047. [PMID: 28934166 PMCID: PMC5691664 DOI: 10.3390/nu9101047] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 09/12/2017] [Accepted: 09/19/2017] [Indexed: 12/31/2022] Open
Abstract
Amino acids and more precisely, branched-chain amino acids (BCAAs), are usually consumed as nutritional supplements by many athletes and people involved in regular and moderate physical activities regardless of their practice level. BCAAs have been initially shown to increase muscle mass and have also been implicated in the limitation of structural and metabolic alterations associated with exercise damage. This systematic review provides a comprehensive analysis of the literature regarding the beneficial effects of BCAAs supplementation within the context of exercise-induced muscle damage or muscle injury. The potential benefit of a BCAAs supplementation was also analyzed according to the supplementation strategy-amount of BCAAs, frequency and duration of the supplementation-and the extent of muscle damage. The review protocol was registered prospectively with Prospective Register for Systematic Reviews (registration number CRD42017073006) and followed Preferred Reporting Items for Systematic reviews and Meta-Analyses guidelines. Literature search was performed from the date of commencement until August 2017 using four online databases (Medline, Cochrane library, Web of science and ScienceDirect). Original research articles: (i) written in English; (ii) describing experiments performed in Humans who received at least one oral BCAAs supplementation composed of leucine, isoleucine and valine mixture only as a nutritional strategy and (iii) reporting a follow-up of at least one day after exercise-induced muscle damage, were included in the systematic review analysis. Quality assessment was undertaken independently using the Quality Criteria Checklist for Primary Research. Changes in indirect markers of muscle damage were considered as primary outcome measures. Secondary outcome measures were the extent of change in indirect markers of muscle damage. In total, 11 studies were included in the analysis. A high heterogeneity was found regarding the different outcomes of these studies. The risk of bias was moderate considering the quality ratings were positive for six and neutral for three. Although a small number of studies were included, BCAAs supplementation can be efficacious on outcomes of exercise-induced muscle damage, as long as the extent of muscle damage was low-to-moderate, the supplementation strategy combined a high daily BCAAs intake (>200 mg kg-1 day-1) for a long period of time (>10 days); it was especially effective if taken prior to the damaging exercise.
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Affiliation(s)
- Alexandre Fouré
- Aix Marseille University, CNRS, Centre de Résonance Magnétique Biologique et Médicale (CRMBM), UMR 7339, Faculté de Médecine la Timone, 27 Boulevard Jean Moulin, 13385 Marseille, France.
| | - David Bendahan
- Aix Marseille University, CNRS, Centre de Résonance Magnétique Biologique et Médicale (CRMBM), UMR 7339, Faculté de Médecine la Timone, 27 Boulevard Jean Moulin, 13385 Marseille, France.
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33
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Furtado DZS, de Moura Leite FBV, Barreto CN, Faria B, Jedlicka LDL, de Jesus Silva E, da Silva HDT, Bechara EJH, Assunção NA. Profiles of amino acids and biogenic amines in the plasma of Cri-du-Chat patients. J Pharm Biomed Anal 2017; 140:137-145. [DOI: 10.1016/j.jpba.2017.03.034] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Revised: 03/15/2017] [Accepted: 03/17/2017] [Indexed: 11/16/2022]
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Abstract
Recently, it has been found that the gut microbiota influences functions of the host brain by affecting monoamine metabolism. The present study focused on the relationship between the gut microbiota and the brain amino acids. Specific pathogen-free (SPF) and germ-free (GF) mice were used as experimental models. Plasma and brain regions were sampled from mice at 7 and 16 weeks of age, and analysed for free d- and l-amino acids, which are believed to affect many physiological functions. At 7 weeks of age, plasma concentrations of d-aspartic acid (d-Asp), l-alanine (l-Ala), l-glutamine (l-Gln) and taurine were higher in SPF mice than in GF mice, but no differences were found at 16 weeks of age. Similar patterns were observed for the concentrations of l-Asp in striatum, cerebral cortex and hippocampus, and l-arginine (l-Arg), l-Ala and l-valine (l-Val) in striatum. In addition, the concentrations of l-Asp, d-Ala, l-histidine, l-isoleucine (l-Ile), l-leucine (l-Leu), l-phenylalanine and l-Val were significantly higher in plasma of SPF mice when compared with those of GF mice. The concentrations of l-Arg, l-Gln, l-Ile and l-Leu were significantly higher in SPF than in GF mice, but those of d-Asp, d-serine and l-serine were higher in some brain regions of GF mice than in those of SPF mice. In conclusion, the concentration of amino acids in the host brain seems to be dependent on presence of the gut microbiota. Amino acid metabolism in the host brain may be modified by manipulating microbiota communities.
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Sarafidis K, Efstathiou N, Begou O, Soubasi V, Agakidou E, Gika E, Theodoridis G, Drossou V. Urine metabolomic profile in neonates with hypoxic-ischemic encephalopa-thy. Hippokratia 2017; 21:80-84. [PMID: 30455560 PMCID: PMC6239088] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
BACKGROUND Metabolomics could provide valuable insights into hypoxemic-ischemic encephalopathy (HIE) revealing new disease-associated biochemical derangements. The study aimed to investigate urine metabolic changes in neonates with HIE compared to healthy controls, using targeted liquid chromatography-tandem mass spectrometry (LC-MS/MS). PATIENTS AND METHODS In this prospective, single-center study we enrolled neonates born at ≥ 36 weeks gestation with HIE (HIE group) and healthy controls (control group). We collected urine samples for metabolomic analysis on days one, three, and nine of life. RESULTS Twenty-one full-term newborns were studied, 13 in the HIE group and eight in the control group. Six of the affected neonates had moderate/severe HIE and seven mild HIE. Therapeutic hypothermia was applied only in four neonates with moderate/severe HIE. Multivariate and univariate statistical analysis showed a clear separation between the HIE and the control groups. Discriminant metabolites involved pyruvic acid, amino acids, acylcarnitines, inositol, kynurenine, hippuric acid, and vitamins. CONCLUSIONS We have identified a specific metabolic profile in neonates with HIE, adding to the existing knowledge on the disease biochemistry that may potentially help in biomarker development. HIPPOKRATIA 2017, 21(2): 80-84.
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Affiliation(s)
- K Sarafidis
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - N Efstathiou
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - O Begou
- School of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - V Soubasi
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Agakidou
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - E Gika
- Laboratory of Forensic Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - G Theodoridis
- School of Chemistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
| | - V Drossou
- 1 Department of Neonatology, School of Medicine Aristotle University of Thessaloniki, Thessaloniki, Greece
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Hernandez-García AD, Columbus DA, Manjarín R, Nguyen HV, Suryawan A, Orellana RA, Davis TA. Leucine supplementation stimulates protein synthesis and reduces degradation signal activation in muscle of newborn pigs during acute endotoxemia. Am J Physiol Endocrinol Metab 2016; 311:E791-E801. [PMID: 27624100 PMCID: PMC5241557 DOI: 10.1152/ajpendo.00217.2016] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 09/06/2016] [Indexed: 11/22/2022]
Abstract
Sepsis disrupts skeletal muscle proteostasis and mitigates the anabolic response to leucine (Leu) in muscle of mature animals. We have shown that Leu stimulates muscle protein synthesis (PS) in healthy neonatal piglets. To determine if supplemental Leu can stimulate PS and reduce protein degradation (PD) signaling in neonatal muscle during endotoxemia, overnight-fasted neonatal pigs were infused for 8 h with LPS or saline while plasma amino acids, glucose, and insulin were maintained at fasting levels during pancreatic-substrate clamps. Leu or saline was infused during the last hour. Markers of PS and PD were determined in skeletal muscle. Compared with controls, Leu increased PS in longissimus dorsi (LD), gastrocnemius, and soleus muscles. LPS decreased PS in these three muscles by 36%, 28%, and 38%, but Leu antagonized that reduction by increasing PS by 84%, 81%, and 83%, respectively, when supplemented to LPS. Leu increased eukaryotic translation initiation factor (eIF)3b-raptor interactions, eIF4E-binding protein-1, and S6 kinase 1 phosphorylation as well as eIF4E·eIF4G complex formation in LD, gastrocnemius, and soleus muscles of control and LPS-treated pigs. In LD muscle, LPS increased the light chain (LC)3-II-to-LC3 ratio and muscle-specific RING finger (MuRF-1) abundance but not atrogin-1 abundance or AMP-activated protein kinase-α phosphorylation. Leu supplementation to LPS-treated pigs reduced the LC3-II-to-LC3 ratio, MuRF-1 abundance, and AMP-activated protein kinase-α phosphorylation compared with LPS alone. In conclusion, parenteral Leu supplementation attenuates the LPS-induced reduction in PS by stimulating mammalian target of rapamycin complex 1-dependent translation and may reduce PD by attenuating autophagy-lysosome and MuRF-1 signaling in neonatal skeletal muscle.
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Affiliation(s)
- Adriana D Hernandez-García
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and Critical Care Section, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Daniel A Columbus
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and
| | - Rodrigo Manjarín
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and
| | - Hanh V Nguyen
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and
| | - Agus Suryawan
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and
| | - Renán A Orellana
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and Critical Care Section, Department of Pediatrics, Baylor College of Medicine, Houston, Texas
| | - Teresa A Davis
- Children's Nutrition Research Center, United States Department of Agriculture/Agricultural Research Service, Houston, Texas; and
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Kleber A, Maurer F, Lorenz D, Wolf B, Albrecht F, Shopova T, Sessler DI, Volk T, Kreuer S, Fink T. Metabolism of 3-pentanone under inflammatory conditions. J Breath Res 2016; 10:047101. [DOI: 10.1088/1752-7155/10/4/047101] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Shinozaki F, Abe T, Kamei A, Watanabe Y, Yasuoka A, Shimada K, Kondo K, Arai S, Kumagai K, Kondo T, Abe K. Coordinated regulation of hepatic and adipose tissue transcriptomes by the oral administration of an amino acid mixture simulating the larval saliva of Vespa species. GENES AND NUTRITION 2016; 11:21. [PMID: 27551322 PMCID: PMC4968451 DOI: 10.1186/s12263-016-0534-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2015] [Accepted: 06/15/2016] [Indexed: 12/21/2022]
Abstract
Background VAAM is an amino acid mixture that simulates the composition of Vespa larval saliva. VAAM enhanced physical endurance of mice and have been used by athletes as a supplementary drink before exercise. However, there is no information on the effect of VAAM on the physiology of freely moving animals. The purpose of this study was to obtain information about the VAAM-dependent regulation of liver and adipose tissue transcriptomes. Results Mice were orally fed a VAAM solution, an amino acid mixture mimicking casein hydrolysate (CAAM) or water under ad libitum feeding conditions for 5 days. Comparisons of the hepatic transcriptome between VAAM-, CAAM-, and water-treated groups revealed a VAAM-specific regulation of the metabolic pathway, i.e., the down-regulation of glycolysis and fatty acid oxidation and the up-regulation of polyunsaturated fatty acid synthesis and glucogenic amino acid utilization. Similar transcriptomic analyses of white and brown adipose tissues (WAT and BAT, respectively) indicated the up-regulation of phospholipid synthesis in WAT and the negative regulation of cellular processes in BAT. Because the coordinated regulation of tissue transcriptomes implied the presence of upstream signaling common to these tissues, we conducted an Ingenuity Pathways Analysis. This analysis showed that estrogenic and glucagon signals were activated in the liver and WAT and that beta-adrenergic signaling was activated in all three tissues. Conclusions We found that VAAM ingestion had an effect on multiple tissue transcriptomes of freely moving mice. Utilization of glycogenic amino acids may have been activated in the liver. Fatty acid conversion into phospholipid, not to triacylglycerol, may have been stimulated in adipocytes contrasting that a little effect was observed in BAT. Analysis of upstream factors revealed that multiple hormonal signals were activated in the liver, WAT, and BAT. Our data provide some clues to understanding the role of VAAM in metabolic regulation. Electronic supplementary material The online version of this article (doi:10.1186/s12263-016-0534-2) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Fumika Shinozaki
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Takashi Abe
- Hornet Research Center, 1-48-7-201 Matsubara, Setagaya-Ku, Tokyo, 156-0043 Japan
| | - Asuka Kamei
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Yuki Watanabe
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Akihito Yasuoka
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Kosuke Shimada
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Kaori Kondo
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Soichi Arai
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan ; NODAI Research Institute, Tokyo University of Agriculture, 1-1-1 Sakuragaoka, Setagaya-ku, Tokyo, 156-8502 Japan
| | - Kota Kumagai
- KYOWA HAKKO BIO CO., LTD., 2, Miyukigaoka, Tsukuba, Ibaraki 305-0841 Japan
| | - Takashi Kondo
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan
| | - Keiko Abe
- Project for Development of Food Functionality Assessment Methods, Kanagawa Academy of Science and Technology, Life Science & Environment Research Center (LiSE) 4F C-4, 3-25-13 Tonomachi, Kawasaki-ku, Kawasaki, Kanagawa 210-0821 Japan ; Department of Applied Biological Chemistry, Graduate School of Agricultural and Life Sciences, The University of Tokyo, 1-1-1 Yayoi, Bunkyo-ku, Tokyo, 113-8657 Japan
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Fouré A, Nosaka K, Gastaldi M, Mattei JP, Boudinet H, Guye M, Vilmen C, Le Fur Y, Bendahan D, Gondin J. Effects of branched-chain amino acids supplementation on both plasma amino acids concentration and muscle energetics changes resulting from muscle damage: A randomized placebo controlled trial. Clin Nutr 2016; 35:83-94. [PMID: 25886707 DOI: 10.1016/j.clnu.2015.03.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2015] [Revised: 03/03/2015] [Accepted: 03/24/2015] [Indexed: 01/22/2023]
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Abstract
Endotoxemia induced by the administration of low-dose lipopolysaccharide (LPS) to healthy human volunteers is a well-established experimental protocol and has served as a reproducible platform for investigating the responses to systemic inflammation. Because metabolic composition of a tissue or body fluid is uniquely altered by stimuli and provides information about the dominant regulatory mechanisms at various cellular processes, understanding the global metabolic response to systemic inflammation constitutes a major part in this investigation complementing the studies undertaken so far in both clinical and systems biology fields. This article communicates the first proof-of-principle metabonomic analysis, which comprised global biochemical profiles in human plasma samples from healthy subjects given intravenous endotoxin at 2 ng/kg. Concentrations of a total of 366 plasma biochemicals were determined in archived blood samples collected from 15 endotoxin-treated subjects at five time points within 24 h after treatment and compared with control samples collected from four saline-treated subjects. Principal component analysis within this data set determined the sixth hour as a critical time point separating development and recovery phases of the LPS-induced metabolic changes. Consensus clustering of the differential metabolites identified two distinct subsets of metabolites that displayed common coherent profiles with opposing directionality. The first group of metabolites, which were mostly associated with pathways related to lipid metabolism, was upregulated within the first 6 h and downregulated by the 24th hour following LPS administration. The second group of metabolites, in contrast, was first downregulated until the sixth hour, then upregulated. Metabolites in this group were predominantly amino acids or their derivatives. In summary, nontargeted biochemical profiling and unsupervised multivariate analyses highlighted the prominent roles of lipid and protein metabolism in regulating the response to systemic inflammation while also revealing their dynamics in opposite directions.
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Clark IA, Vissel B. Inflammation-sleep interface in brain disease: TNF, insulin, orexin. J Neuroinflammation 2014; 11:51. [PMID: 24655719 PMCID: PMC3994460 DOI: 10.1186/1742-2094-11-51] [Citation(s) in RCA: 70] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2014] [Accepted: 03/11/2014] [Indexed: 12/28/2022] Open
Abstract
The depth, pattern, timing and duration of unconsciousness, including sleep, vary greatly in inflammatory disease, and are regarded as reliable indicators of disease severity. Similarly, these indicators are applicable to the encephalopathies of sepsis, malaria, and trypanosomiasis, and to viral diseases such as influenza and AIDS. They are also applicable to sterile neuroinflammatory states, including Alzheimer’s disease, Parkinson’s disease, traumatic brain injury, stroke and type-2 diabetes, as well as in iatrogenic brain states following brain irradiation and chemotherapy. Here we make the case that the cycles of unconsciousness that constitute normal sleep, as well as its aberrations, which range from sickness behavior through daytime sleepiness to the coma of inflammatory disease states, have common origins that involve increased inflammatory cytokines and consequent insulin resistance and loss of appetite due to reduction in orexigenic activity. Orexin reduction has broad implications, which are as yet little appreciated in the chronic inflammatory conditions listed, whether they be infectious or sterile in origin. Not only is reduction in orexin levels characterized by loss of appetite, it is associated with inappropriate and excessive sleep and, when dramatic and chronic, leads to coma. Moreover, such reduction is associated with impaired cognition and a reduction in motor control. We propose that advanced understanding and appreciation of the importance of orexin as a key regulator of pathways involved in the maintenance of normal appetite, sleep patterns, cognition, and motor control may afford novel treatment opportunities.
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Affiliation(s)
- Ian A Clark
- Biomedical Sciences and Biochemistry, Research School of Biology, Australian National University, Acton, Canberra, Australian Capital Territory 0200, Australia.
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Abstract
PURPOSE OF REVIEW New insight in mitochondrial physiology has highlighted the importance of mitochondrial dysfunction in the metabolic and neuroendocrine changes observed in patients presenting with chronic critical illness. This review highlights specifically the importance of carnitine status in this particular patient population and its impact on beta-oxidation and mitochondrial function. RECENT FINDINGS The main function of carnitine is long chain fatty acid esterification and transport through the mitochondrial membrane. Carnitine depletion should be suspected in critically ill patients with risk factors such as prolonged continuous renal replacement therapy or chronic parenteral nutrition, and evidence of beta-oxidation impairments such as inappropriate hypertriglyceridemia or hyperlactatemia. When fatty acid oxidation is impaired, acyl-CoAs accumulate and deplete the CoA intramitochondrial pool, hence causing a generalized mitochondrial dysfunction and multiorgan failure, with clinical consequences such as muscle weakness, rhabdomyolysis, cardiomyopathy, arrhythmia or sudden death. In such situations, carnitine plasma levels should be measured along with a complete assessment of plasma amino acid, plasma acylcarnitines and urinary organic acid analysis. Supplementation should be initiated if below normal levels (20 μmol/l) of carnitine are observed. In the absence of current guidelines, we recommend an initial supplementation of 0.5-1 g/day. SUMMARY Metabolic modifications associated with chronic critical illness are just being explored. Carnitine deficiency in critically ill patients is one aspect of these profound and complex changes associated with prolonged stay in ICU. It is readily measurable in the plasma and can easily be substituted if needed, although guidelines are currently missing.
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Affiliation(s)
- Luisa Bonafé
- aCenter for Molecular Diseases, Lausanne University Hospital bAdult Intensive Care & Burns, Lausanne University Hospital, Lausanne, Switzerland cDivision of Endocrinology, Diabetes, and Bone Disease, Icahn School of Medicine at Mount Sinai, New York, New York, USA
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