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Perreault M, Means J, Gerson E, James M, Cotton S, Bergeron CG, Simon M, Carlin DA, Schmidt N, Moore TC, Blasbalg J, Sondheimer N, Ndugga-Kabuye K, Denney WS, Isabella VM, Lubkowicz D, Brennan A, Hava DL. The live biotherapeutic SYNB1353 decreases plasma methionine via directed degradation in animal models and healthy volunteers. Cell Host Microbe 2024; 32:382-395.e10. [PMID: 38309259 DOI: 10.1016/j.chom.2024.01.005] [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: 08/24/2023] [Revised: 12/07/2023] [Accepted: 01/12/2024] [Indexed: 02/05/2024]
Abstract
Methionine is an essential proteinogenic amino acid, but its excess can lead to deleterious effects. Inborn errors of methionine metabolism resulting from loss of function in cystathionine β-synthase (CBS) cause classic homocystinuria (HCU), which is managed by a methionine-restricted diet. Synthetic biotics are gastrointestinal tract-targeted live biotherapeutics that can be engineered to replicate the benefits of dietary restriction. In this study, we assess whether SYNB1353, an E. coli Nissle 1917 derivative, impacts circulating methionine and homocysteine levels in animals and healthy volunteers. In both mice and nonhuman primates (NHPs), SYNB1353 blunts the appearance of plasma methionine and plasma homocysteine in response to an oral methionine load. A phase 1 clinical study conducted in healthy volunteers subjected to an oral methionine challenge demonstrates that SYNB1353 is well tolerated and blunts plasma methionine by 26%. Overall, SYNB1353 represents a promising approach for methionine reduction with potential utility for the treatment of HCU.
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Plasma Amino Acid Concentration in Obese Horses with/without Insulin Dysregulation and Laminitis. Animals (Basel) 2022; 12:ani12243580. [PMID: 36552500 PMCID: PMC9774246 DOI: 10.3390/ani12243580] [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: 11/16/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 12/23/2022] Open
Abstract
Laminitic horses commonly suffer from an endocrine disease such as equine metabolic syndrome. Hyperinsulinemia is considered a key factor in the pathogenesis of laminitis. Since insulin also affects protein turnover in the body, the resting plasma amino acid concentrations of obese horses that were presented for a combined glucose insulin test (CGIT) were determined. In total, 25 obese horses and two lean horses with recurrent laminitis underwent a CGIT. Of these, five were not insulin dysregulated (obese), 14 were insulin dysregulated (ID), and eight were insulin-dysregulated and laminitic (IDL). Significant differences in the resting concentrations between obese and insulin dysregulated and laminitic (citrulline p = 0.038, obese: 73.001 ± 12.661 nmol/mL, IDL: 49.194 ± 15.486 nmol/mL; GABA p = 0.02, obese: 28.234 ± 3.885 nmol/mL, IDL: 16.697 ± 1.679 nmol/mL; methionine p = 0.018, obese: 28.691 ± 5.913 nmol/mL, IDL: 20.143 ± 3.09 nmol/mL) as well as between insulin dysregulated individuals with and without laminitis (GABA p < 0.001, ID: 28.169 ± 6.739 nmol/mL) regarding three amino acids were determined. This may be an interesting approach, especially for diagnostic testing and possibly also for the feed supplements of horses at risk of developing laminitis. However, further research, including a higher number of cases, is required.
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Zhang T, Zhu S, Miao H, Yang J, Shi Y, Yue Y, Zhang Y, Yang R, Wu B, Huang X. Dynamic changes of metabolic characteristics in neonatal intrahepatic cholestasis caused by citrin deficiency. Front Mol Biosci 2022; 9:939837. [PMID: 36090036 PMCID: PMC9449879 DOI: 10.3389/fmolb.2022.939837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Accepted: 07/25/2022] [Indexed: 11/13/2022] Open
Abstract
Introduction: Neonatal intrahepatic cholestasis caused by citrin deficiency (NICCD) is a pan-ethnic complicated inborn error of metabolism but the specific mechanism is not fully understood.Methods: A total of 169 patients with NICCD who have biallelic pathogenic SLC25A13 variants detected by targeted next-generation sequencing were collected. They were divided into the “Newborn-screen Group” and “Clinical diagnosed Group” depending on the newborn screening results. Amino acid and acylcarnitine profiles were measured by MS/MS. The total bile acids, blood amino acids and acylcarnitines, general biochemistry, blood count, and coagulation parameters were monitored every 2–3 months. We compared the differences in metabolic indices and their dynamic changes between these two groups. The Mann–Whitney test and orthogonal partial least squares discrimination analysis (OPLS-DA) were used for statistical analysis.Results: At the onset of NICCD, we found that the “Clinical diagnosed Group” had higher levels of intermediate products of the urea cycle, free carnitine, and short-chain and long-chain acylcarnitines than those in the “Newborn-screen Group,” but the levels of ketogenic/glucogenic amino acids and several medium-chain acylcarnitines were lower. Furthermore, concentrations of direct bilirubin, total bile acid, lactate, prothrombin time, and several liver enzymes were significantly higher while total protein, amylase, and hemoglobin were lower in the “Clinical diagnosed Group” than in the “Newborn-screen Group.” Dynamic change analysis showed that direct bilirubin, albumin, arginine, and citrulline were the earliest metabolic derangements to reach peak levels in NICCD groups, followed by acylcarnitine profiles, and finally with the elevation of liver enzymes. All abnormal characteristic metabolic indicators in the “Newborn-screen Group” came back to normal levels at earlier ages than the “Clinical diagnosed Group.” c.852_855del (41.2%), IVS16ins3kb (17.6%), c.615 + 5G>A (9.6%), 1638_1660dup (4.4%), and c.1177 + 1G>A (3.7%) accounted for 76.5% of all the mutated SLC25A13 alleles in our population.Conclusion: Argininosuccinate synthesis, gluconeogenesis, ketogenesis, fatty acid oxidation, liver function, and cholestasis were more severely affected in the “Clinical diagnosed Group.” The “Newborn-screen Group” had a better prognosis which highlighted the importance of newborn screening of NICCD.
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Affiliation(s)
- Ting Zhang
- Department of Genetics and Metabolism, Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Shasha Zhu
- Department of Genetics and Metabolism, Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Haixia Miao
- Department of Genetics and Metabolism, Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Jianbin Yang
- Department of Genetics and Metabolism, Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Yezhen Shi
- Department of Technical Support, Zhejiang Biosan Biochemical Technologies Co. Ltd., Hangzhou, China
| | - Yuwei Yue
- Department of Technical Support, Zhejiang Biosan Biochemical Technologies Co. Ltd., Hangzhou, China
| | - Yu Zhang
- Department of Technical Support, Zhejiang Biosan Biochemical Technologies Co. Ltd., Hangzhou, China
| | - Rulai Yang
- Department of Genetics and Metabolism, Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
| | - Benqing Wu
- Department of Neonatology, Children’s Medical Center, University of Chinese Academy of Science-Shenzhen Hospital, Shenzhen, China
- *Correspondence: Benqing Wu, ; Xinwen Huang,
| | - Xinwen Huang
- Department of Genetics and Metabolism, Children’s Hospital of Zhejiang University School of Medicine, National Clinical Research Center for Child Health, Hangzhou, China
- *Correspondence: Benqing Wu, ; Xinwen Huang,
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4
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Ligthart-Melis GC, Engelen MPKJ, Simbo SY, Ten Have GAM, Thaden JJ, Cynober L, Deutz NEP. Metabolic Consequences of Supplemented Methionine in a Clinical Context. J Nutr 2020; 150:2538S-2547S. [PMID: 33000166 DOI: 10.1093/jn/nxaa254] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 04/01/2020] [Accepted: 07/31/2020] [Indexed: 12/27/2022] Open
Abstract
The central position of methionine (Met) in protein metabolism indicates the importance of this essential amino acid for growth and maintenance of lean body mass. Therefore, Met might be a tempting candidate for supplementation. However, because Met is also the precursor of homocysteine (Hcy), a deficient intake of B vitamins or excessive intake of Met may result in hyperhomocysteinemia (HHcy), which is a risk factor for cardiovascular disease. This review discusses the evidence generated in preclinical and clinical studies on the importance and potentially harmful effects of Met supplementation and elaborates on potential clinical applications of supplemental Met with reference to clinical studies performed over the past 20 y. Recently acquired knowledge about the NOAEL (no observed adverse effect level) of 46.3 mg · kg-1 · d-1 and the LOAEL (lowest observed adverse effect level) of 91 mg · kg-1 · d-1 of supplemented Met will guide the design of future studies to further establish the role of Met as a potential (safe) candidate for nutritional supplementation in clinical applications.
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Affiliation(s)
- Gerdien C Ligthart-Melis
- Center for Translational Research in Aging & Longevity, Department of Health & Kinesiology, Texas A&M University, College Station, Texas, USA
| | - Mariëlle P K J Engelen
- Center for Translational Research in Aging & Longevity, Department of Health & Kinesiology, Texas A&M University, College Station, Texas, USA
| | - Sunday Y Simbo
- Center for Translational Research in Aging & Longevity, Department of Health & Kinesiology, Texas A&M University, College Station, Texas, USA
| | - Gabrie A M Ten Have
- Center for Translational Research in Aging & Longevity, Department of Health & Kinesiology, Texas A&M University, College Station, Texas, USA
| | - John J Thaden
- Center for Translational Research in Aging & Longevity, Department of Health & Kinesiology, Texas A&M University, College Station, Texas, USA
| | - Luc Cynober
- Department of Clinical Chemistry, Hôpital Cochin, Hôpitaux Universitaires Paris Centre, Paris, France
| | - Nicolaas E P Deutz
- Center for Translational Research in Aging & Longevity, Department of Health & Kinesiology, Texas A&M University, College Station, Texas, USA
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Miousse IR, Ewing LE, Skinner CM, Pathak R, Garg S, Kutanzi KR, Melnyk S, Hauer-Jensen M, Koturbash I. Methionine dietary supplementation potentiates ionizing radiation-induced gastrointestinal syndrome. Am J Physiol Gastrointest Liver Physiol 2020; 318:G439-G450. [PMID: 31961718 PMCID: PMC7099489 DOI: 10.1152/ajpgi.00351.2019] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Methionine is an essential amino acid needed for a variety of processes in living organisms. Ionizing radiation depletes tissue methionine concentrations and leads to the loss of DNA methylation and decreased synthesis of glutathione. In this study, we aimed to investigate the effects of methionine dietary supplementation in CBA/CaJ mice after exposure to doses ranging from 3 to 8.5 Gy of 137Cs of total body irradiation. We report that mice fed a methionine-supplemented diet (MSD; 19.5 vs. 6.5 mg/kg in a methionine-adequate diet, MAD) developed acute radiation toxicity at doses as low as 3 Gy. Partial body irradiation performed with hindlimb shielding resulted in a 50% mortality rate in MSD-fed mice exposed to 8.5 Gy, suggesting prevalence of radiation-induced gastrointestinal syndrome in the development of acute radiation toxicity. Analysis of the intestinal microbiome demonstrated shifts in the gut ecology, observed along with the development of leaky gut syndrome and bacterial translocation into the liver. Normal gut physiology impairment was facilitated by alterations in the one-carbon metabolism pathway and was exhibited as decreases in circulating citrulline levels mirrored by decreased intestinal mucosal surface area and the number of surviving crypts. In conclusion, we demonstrate that a relevant excess of methionine dietary intake exacerbates the detrimental effects of exposure to ionizing radiation in the small intestine.NEW & NOTEWORTHY Methionine supplementation, instead of an anticipated health-promoting effect, sensitizes mice to gastrointestinal radiation syndrome. Mechanistically, excess of methionine negatively affects intestinal ecology, leading to a cascade of physiological, biochemical, and molecular alterations that impair normal gut response to a clinically relevant genotoxic stressor. These findings speak toward increasing the role of registered dietitians during cancer therapy and the necessity of a solid scientific background behind the sales of dietary supplements and claims regarding their benefits.
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Affiliation(s)
- Isabelle R. Miousse
- 1Department of Environmental and Occupation Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas,2Department of Biochemistry, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Laura E. Ewing
- 1Department of Environmental and Occupation Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas,3Department of Pharmacology and Toxicology, College of Medicine, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Charles M. Skinner
- 1Department of Environmental and Occupation Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas,4Center for Dietary Supplements Research, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Rupak Pathak
- 5Division of Radiation Health, Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Sarita Garg
- 5Division of Radiation Health, Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Kristy R. Kutanzi
- 1Department of Environmental and Occupation Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Stepan Melnyk
- 6Arkansas Children’s Research Institute, Little Rock, Arknsas
| | - Martin Hauer-Jensen
- 5Division of Radiation Health, Department of Pharmaceutical Sciences, College of Pharmacy, University of Arkansas for Medical Sciences, Little Rock, Arkansas
| | - Igor Koturbash
- 1Department of Environmental and Occupation Health, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas,4Center for Dietary Supplements Research, Fay W. Boozman College of Public Health, University of Arkansas for Medical Sciences, Little Rock, Arkansas
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Ayyat MS, Al-Sagheer A, Noreldin AE, Abd El-Hack ME, Khafaga AF, Abdel-Latif MA, Swelum AA, Arif M, Salem AZM. Beneficial effects of rumen-protected methionine on nitrogen-use efficiency, histological parameters, productivity and reproductive performance of ruminants. Anim Biotechnol 2019; 32:51-66. [PMID: 31443628 DOI: 10.1080/10495398.2019.1653314] [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: 12/17/2022]
Abstract
Providing essential amounts of balanced nutrients is one of the most vital aspects of livestock production. Among nutrients, protein has an essential role in many physiological functions of animals. Amino acids in needs for both high and medium yielding ruminant animals are not fully covered by microbial degraded feed sources in the rumen of animals, and they must be met by protecting the proteins from being broken down in the rumen; hence, the dietary supplementation of rumen-protected proteins (RPP), including mainly rumen-protected methionine (RPM), became imperative. Many researchers are interested in studying the role of (RPM) in ruminant animals concerning its effect on milk yield, growth performance, digestibility, dry matter intake and nitrogen utilization efficiency. Unfortunately, results obtained from several investigations regarding RPM indicated great fluctuation between its useful and useless effects in ruminant nutrition particularly during early and late lactation period; therefore, this review article may be helpful for ruminant farm owners when they decide to supplement RPM in animal's diet. Conclusively, supplementation of RPM often has a balanced positive influence, without any reported negative impact on milk yield, growth performance and blood parameters especially in early lactating ruminant animals and when used with the low crude protein diet.
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Affiliation(s)
- Mohamed S Ayyat
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Adham Al-Sagheer
- Department of Animal Production, Faculty of Agriculture, Zagazig University, Zagazig, Egypt
| | - Ahmed E Noreldin
- Department of Histology and Cytology, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | | | - Asmaa F Khafaga
- Department of Pathology, Faculty of Veterinary Medicine, Alexandria University, Edfina, Egypt
| | - Mervat A Abdel-Latif
- Department of Nutrition and Veterinary Clinical Nutrition, Faculty of Veterinary Medicine, Damanhour University, Damanhour, Egypt
| | - Ayman A Swelum
- Department of Animal Production, College of Food and Agriculture Sciences, King Saud University, Riyadh, Saudi Arabia.,Department of Theriogenology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Muhammad Arif
- Department of Animal Sciences, University College of Agriculture, University of Sargodha, Sargodha, Pakistan
| | - Abdelfattah Z M Salem
- Facultad de Medicina Veterinaria y Zootecnia, Universidad Autónoma del Estado de México, Toluca, México
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7
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Lebret B, Batonon-Alavo DI, Perruchot MH, Mercier Y, Gondret F. Improving pork quality traits by a short-term dietary hydroxy methionine supplementation at levels above growth requirements in finisher pigs. Meat Sci 2018; 145:230-237. [DOI: 10.1016/j.meatsci.2018.06.040] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2018] [Revised: 06/18/2018] [Accepted: 06/28/2018] [Indexed: 02/07/2023]
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8
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Deutz NE, Simbo SY, Ligthart-Melis GC, Cynober L, Smriga M, Engelen MP. Tolerance to increased supplemented dietary intakes of methionine in healthy older adults. Am J Clin Nutr 2017; 106:675-683. [PMID: 28637772 DOI: 10.3945/ajcn.117.152520] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 05/18/2017] [Indexed: 11/14/2022] Open
Abstract
Background: l-Methionine (Met) is an essential amino acid for humans and is important for protein synthesis and the formation of polyamines and is involved in the synthesis of many metabolites, including homocysteine. Free-Met supplements have been claimed to have multiple positive effects; however, it remains unclear what the exact tolerance level is. With aging, Met metabolism changes, and increased plasma homocysteine is more apparent. High plasma concentrations of homocysteine are assumed to be associated with a high risk of developing atherosclerosis.Objective: We estimated the no-observed-adverse-effect level (NOAEL) and the lowest-observed-adverse-effect level (LOAEL) of supplemented, oral, free Met in healthy older adults by examining the increase in plasma homocysteine as the primary determinant.Design: We provided capsules with free Met to 15 healthy older adult subjects for 4 wk at climbing dosages of, on average, 9.2, 22.5, 46.3 and 91 mg · kg body weight-1 · d-1 with washout periods of 2 wk between each intake. Before, at 2 and 4 wk during, and 2 wk after each dosage, we studied a complete panel of biochemical blood variables to detect possible intolerance to increased Met intake. Plasma homocysteine and body composition were measured, and tolerance, quality of life, and cognitive function were assessed via questionnaires.Results: Plasma homocysteine was elevated with the highest dose of supplemented Met. The estimated NOAEL of supplemented Met was set at 46.3 mg · kg body weight-1 · d-1, and the estimated LOAEL of supplemented Met was set at 91 mg · kg body weight-1 · d-1 (on the basis of the actual intakes) in subjects independent of sex. No signs of intolerance were observed via questionnaires or other blood variables at the LOAEL. There were no meaningful changes in body composition.Conclusions: On the basis of plasma homocysteine, the NOAEL of supplemented Met intake is 46.3 and the LOAEL is 91 mg · kg body weight-1 · d-1 in healthy older adults. Both the NOAEL and LOAEL are not associated with meaningful effects on health and wellbeing. This trial was registered at clinicaltrials.gov as NCT02566434.
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Affiliation(s)
- Nicolaas Ep Deutz
- Center for Translational Research in Aging and Longevity, Department of Health and Kinesiology, Texas A&M University, College Station, TX;
| | - Sunday Y Simbo
- Center for Translational Research in Aging and Longevity, Department of Health and Kinesiology, Texas A&M University, College Station, TX
| | - Gerdien C Ligthart-Melis
- Center for Translational Research in Aging and Longevity, Department of Health and Kinesiology, Texas A&M University, College Station, TX
| | - Luc Cynober
- Department of Clinical Chemistry, Cochin and Hotel-Dieu Hospitals, Assistance Publique - Hôpitaux de Paris, Paris, France.,Department of Biological Nutrition, Faculty of Pharmacy, Paris Descartes University, Paris, France; and
| | - Miro Smriga
- International Council on Amino Acid Science, Brussels, Belgium
| | - Mariëlle Pkj Engelen
- Center for Translational Research in Aging and Longevity, Department of Health and Kinesiology, Texas A&M University, College Station, TX
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9
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Nutritional regulation of the anabolic fate of amino acids within the liver in mammals: concepts arising from in vivo studies. Nutr Res Rev 2016; 28:22-41. [PMID: 26156215 DOI: 10.1017/s0954422415000013] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
At the crossroad between nutrient supply and requirements, the liver plays a central role in partitioning nitrogenous nutrients among tissues. The present review examines the utilisation of amino acids (AA) within the liver in various physiopathological states in mammals and how the fates of AA are regulated. AA uptake by the liver is generally driven by the net portal appearance of AA. This coordination is lost when demands by peripheral tissues is important (rapid growth or lactation), or when certain metabolic pathways within the liver become a priority (synthesis of acute-phase proteins). Data obtained in various species have shown that oxidation of AA and export protein synthesis usually responds to nutrient supply. Gluconeogenesis from AA is less dependent on hepatic delivery and the nature of nutrients supplied, and hormones like insulin are involved in the regulatory processes. Gluconeogenesis is regulated by nutritional factors very differently between mammals (glucose absorbed from the diet is important in single-stomached animals, while in carnivores, glucose from endogenous origin is key). The underlying mechanisms explaining how the liver adapts its AA utilisation to the body requirements are complex. The highly adaptable hepatic metabolism must be capable to deal with the various nutritional/physiological challenges that mammals have to face to maintain homeostasis. Whereas the liver responds generally to nutritional parameters in various physiological states occurring throughout life, other complex signalling pathways at systemic and tissue level (hormones, cytokines, nutrients, etc.) are involved additionally in specific physiological/nutritional states to prioritise certain metabolic pathways (pathological states or when nutritional requirements are uncovered).
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10
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Chien YH, Abdenur JE, Baronio F, Bannick AA, Corrales F, Couce M, Donner MG, Ficicioglu C, Freehauf C, Frithiof D, Gotway G, Hirabayashi K, Hofstede F, Hoganson G, Hwu WL, James P, Kim S, Korman SH, Lachmann R, Levy H, Lindner M, Lykopoulou L, Mayatepek E, Muntau A, Okano Y, Raymond K, Rubio-Gozalbo E, Scholl-Bürgi S, Schulze A, Singh R, Stabler S, Stuy M, Thomas J, Wagner C, Wilson WG, Wortmann S, Yamamoto S, Pao M, Blom HJ. Mudd's disease (MAT I/III deficiency): a survey of data for MAT1A homozygotes and compound heterozygotes. Orphanet J Rare Dis 2015; 10:99. [PMID: 26289392 PMCID: PMC4545930 DOI: 10.1186/s13023-015-0321-y] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2015] [Accepted: 08/13/2015] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND This paper summarizes the results of a group effort to bring together the worldwide available data on patients who are either homozygotes or compound heterozygotes for mutations in MAT1A. MAT1A encodes the subunit that forms two methionine adenosyltransferase isoenzymes, tetrameric MAT I and dimeric MAT III, that catalyze the conversion of methionine and ATP to S-adenosylmethionine (AdoMet). Subnormal MAT I/III activity leads to hypermethioninemia. Individuals, with hypermethioninemia due to one of the MAT1A mutations that in heterozygotes cause relatively mild and clinically benign hypermethioninemia are currently often being flagged in screening programs measuring methionine elevation to identify newborns with defective cystathionine β-synthase activity. Homozygotes or compound heterozygotes for MAT1A mutations are less frequent. Some but not all, such individuals have manifested demyelination or other CNS abnormalities. PURPOSE OF THE STUDY The goals of the present effort have been to determine the frequency of such abnormalities, to find how best to predict whether they will occur, and to evaluate the outcomes of the variety of treatment regimens that have been used. Data have been gathered for 64 patients, of whom 32 have some evidence of CNS abnormalities (based mainly on MRI findings), and 32 do not have such evidence. RESULTS AND DISCUSSION The results show that mean plasma methionine concentrations provide the best indication of the group into which a given patient will fall: those with means of 800 μM or higher usually have evidence of CNS abnormalities, whereas those with lower means usually do not. Data are reported for individual patients for MAT1A genotypes, plasma methionine, total homocysteine (tHcy), and AdoMet concentrations, liver function studies, results of 15 pregnancies, and the outcomes of dietary methionine restriction and/or AdoMet supplementation. Possible pathophysiological mechanisms that might contribute to CNS damage are discussed, and tentative suggestions are put forth as to optimal management.
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Affiliation(s)
- Yin-Hsiu Chien
- Department of Medical Genetics and Pediatrics, National Taiwan University Hospital, Children's Hospital Building, Taipei, Taiwan
| | - Jose E Abdenur
- Division of Metabolic Disorders, CHOC Children's, Orange, CA, USA
| | - Federico Baronio
- Newborn Screening and Inborn Errors of Metabolism Regional Centre, Pediatric Endocrinology Program, Pediatric Unit, S.Orsola-Malpighi Hospital, University of Bologna, Bologna, Italy
| | - Allison Anne Bannick
- Children's Hospital of Michigan Metabolic Clinic, Detroit Medical Center, Detroit, MI, USA
| | - Fernando Corrales
- Department of Hepatology, Proteomics laboratory, Center for Applied Medical Research (CIMA), University of Navarra, IdiSNA, Pamplona, Spain
| | - Maria Couce
- Head of Metabolic Unit, Department Pediatrics, Hospital Clínico Universitario de Santiago, Santiago de Compostela, Spain
| | - Markus G Donner
- Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Can Ficicioglu
- The Children's Hospital of Philadelphia, Division of Metabolism, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, PA, USA
| | - Cynthia Freehauf
- Department of Pediatrics, University of Colorado, Aurora, CO, USA
| | - Deborah Frithiof
- Department of Clinical Sciences, Pediatrics Umeå University, SE 901 85, Umeå, Sweden
| | - Garrett Gotway
- Department of Pediatrics, Division of Genetics and Metabolism; Department of Internal Medicine, Division of Clinical Genetics; and McDermott Center for Human Growth and Development, University of Texas Southwestern Medical Center, Dallas, TX, USA
| | - Koichi Hirabayashi
- Department of Pediatrics, Shinshu University School of Medicine, 3-1-1, Asahi, Matsumoto, Japan
| | - Floris Hofstede
- Division of Paediatrics, Department of Metabolic Diseases, Wilhelmina Children's Hospital, University Medical Center Utrecht, Utrecht, The Netherlands
| | - George Hoganson
- Department of Pediatrics, University of Illinois at Chicago, College of Medicine, Chicago, Il, USA
| | - Wuh-Liang Hwu
- Department of Medical Genetics and Pediatrics, National Taiwan University Hospital, Children's Hospital Building, Taipei, Taiwan
| | - Philip James
- Children's Hospital Boston, Harvard Medical School, Boston, USA
| | - Sook Kim
- KSZ Children's Hospital/Korea Genetics Research Center, Jikjidaero, Heung Duck Gu, Cheng Ju City, Chung Buk, Republic of Korea
| | - Stanley H Korman
- Department of Genetics and Department of Metabolic Diseases, Hebrew University, Hadassah Medical Center, Jerusalem, Israel
| | - Robin Lachmann
- Charles Dent Metabolic Unit, National Hospital for Neurology and Neurosurgery, London, UK
| | - Harvey Levy
- Children's Hospital Boston, Harvard Medical School, Boston, USA
| | - Martin Lindner
- Department of General Pediatrics, Division of Pediatric Metabolic Medicine and Neuropediatrics, University Hospital Heidelberg, Heidelberg, Germany
- Department of Neurology, University Children's Hospital Frankfurt, Frankfurt, Germany
| | - Lilia Lykopoulou
- First Department of Pediatrics, University of Athens, Agia Sofia Children's Hospital, Athens, Greece
| | - Ertan Mayatepek
- Department of General Pediatrics, Neonatology and Pediatric Cardiology, University Children's Hospital Duesseldorf, Duesseldorf, Germany
| | - Ania Muntau
- University Children's Hospital, University Medical Center Hamburg Eppendorf, Hamburg, Germany
| | - Yoshiyuki Okano
- Department of Genetics, Hyogo College of Medicine, 1-1 Mukogawa-cho, Nishinomiya, Japan
| | - Kimiyo Raymond
- Department of Medicine and Pathology, Biochemical Genetics Laboratory, Mayo Clinic College of Medicine, Rochester, MN, USA
| | - Estela Rubio-Gozalbo
- Department of Pediatrics and Laboratory Genetic Metabolic Diseases, Maastricht University Medical Center, Maastricht, Netherlands
| | - Sabine Scholl-Bürgi
- Medical University of Innsbruck, Clinic for Pediatrics, Inherited Metabolic Disorders, Innsbruck, Austria
| | - Andreas Schulze
- Genetics and Genome Biology, Peter Gilgan Center for Research and Learning The Hospital for Sick Children, Toronto, ON, Canada
| | - Rani Singh
- Department of Human Genetics and Pediatric, Emory University, Atlanta, GA, USA
| | - Sally Stabler
- Department of Medicine, University of Colorado School of Medicine, Aurora, CO, USA
| | - Mary Stuy
- Department of Medical and Molecular Genetics Indiana University School of Medicine, Indianapolis, IN, USA
| | - Janet Thomas
- Department of Pediatrics, University of Colorado, Aurora, CO, USA
| | - Conrad Wagner
- Department of Biochemistry, Vanderbilt University School of Medicine, Nashville, Tn, USA
| | - William G Wilson
- Division of Genetics, University of Virginia School of Medicine, Charlottesville, VA, USA
| | - Saskia Wortmann
- Nijmegen Centre for Mitochondrial Disorders (NCMD), RadboudUMC, Amalia Children's Hospital, Nijmegen, The Netherlands
| | | | - Maryland Pao
- Laboratory of Molecular Biology, National Institute of Mental Health, Bethesda, MD, USA
| | - Henk J Blom
- Laboratory for Clinical Biochemistry and Metabolism, Center for Pediatrics and Adolescent Medicine University Hospital Freiburg, 79106, Freiburg, Germany.
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11
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Methionine production—a critical review. Appl Microbiol Biotechnol 2014; 98:9893-914. [DOI: 10.1007/s00253-014-6156-y] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2014] [Revised: 10/09/2014] [Accepted: 10/12/2014] [Indexed: 12/31/2022]
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12
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He X, Slupsky CM. Metabolic fingerprint of dimethyl sulfone (DMSO2) in microbial-mammalian co-metabolism. J Proteome Res 2014; 13:5281-92. [PMID: 25245235 DOI: 10.1021/pr500629t] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
There is growing awareness that intestinal microbiota alters the energy harvesting capacity of the host and regulates metabolism. It has been postulated that intestinal microbiota are able to degrade unabsorbed dietary components and transform xenobiotic compounds. The resulting microbial metabolites derived from the gastrointestinal tract can potentially enter the circulation system, which, in turn, affects host metabolism. Yet, the metabolic capacity of intestinal microbiota and its interaction with mammalian metabolism remains largely unexplored. Here, we review a metabolic pathway that integrates the microbial catabolism of methionine with mammalian metabolism of methanethiol (MT), dimethyl sulfide (DMS), and dimethyl sulfoxide (DMSO), which together provide evidence that supports the microbial origin of dimethyl sulfone (DMSO2) in the human metabolome. Understanding the pathway of DMSO2 co-metabolism expends our knowledge of microbial-derived metabolites and motivates future metabolomics-based studies on ascertaining the metabolic consequences of intestinal microbiota on human health, including detoxification processes and sulfur xenobiotic metabolism.
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Affiliation(s)
- Xuan He
- Department of Nutrition, Department of Food Science and Technology, One Shields Avenue , University of California, Davis, Davis, California 95616, United States
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13
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Altered balance of the aminogram in patients with sepsis – The relation to mortality. Clin Nutr 2014; 33:179-82. [DOI: 10.1016/j.clnu.2013.11.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2012] [Revised: 10/30/2013] [Accepted: 11/22/2013] [Indexed: 02/08/2023]
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14
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Bame M, Grier RE, Needleman R, Brusilow WSA. Amino acids as biomarkers in the SOD1(G93A) mouse model of ALS. Biochim Biophys Acta Mol Basis Dis 2013; 1842:79-87. [PMID: 24129262 DOI: 10.1016/j.bbadis.2013.10.004] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Revised: 09/26/2013] [Accepted: 10/07/2013] [Indexed: 12/12/2022]
Abstract
The development of therapies for Amyotrophic Lateral Sclerosis (ALS) has been hindered by the lack of biomarkers for both identifying early disease and for monitoring the effectiveness of drugs. The identification of ALS biomarkers in presymptomatic individuals might also provide clues to the earliest biochemical correlates of the disease. Previous attempts to use plasma metabolites as biomarkers have led to contradictory results, presumably because of heterogeneity in both the underlying genetics and the disease stage in the clinical population. To eliminate these two sources of heterogeneity we have characterized plasma amino acids and other metabolites in the SOD1(G93A) transgenic mouse model for ALS. Presymptomatic SOD1(G93A) mice have significant differences in concentrations of several plasma metabolites compared to wild type animals, most notably in the concentrations of aspartate, cystine/cysteine, and phosphoethanolamine, and in changes indicative of methylation defects. There are significant changes in amino acid compositions between 50 and 70days of age in both the SOD1(G93A) and wild type mice, and several of the age-related and disease-related differences in metabolite concentration were also gender-specific. Many of the SOD1(G93A)-related differences could be altered by treatment of mice with methionine sulfoximine, which extends the lifespan of this mouse, inhibits glutamine synthetase, and modifies brain methylation reactions. These studies show that assaying plasma metabolites can effectively distinguish transgenic mice from wild type, suggesting that one or more plasma metabolites might be useful biomarkers for the disease in humans, especially if genetic and longitudinal analysis is used to reduce population heterogeneity.
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Affiliation(s)
- Monica Bame
- Department of Biochemistry and Molecular Biology, Wayne State University School of Medicine, 540 E. Canfield Street, Detroit, MI 48230, USA
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15
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