1
|
Katafuchi A, Shimamoto S, Kawaguchi M, Tomonaga S, Nakashima K, Ishihara S, Ohtsuka A, Ijiri D. Effects of Delaying Post-hatch Feeding on the Plasma Metabolites of Broiler Chickens Revealed by Targeted and Untargeted Metabolomics. J Poult Sci 2023; 60:2023032. [PMID: 38145205 PMCID: PMC10730121 DOI: 10.2141/jpsa.2023032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Accepted: 10/30/2023] [Indexed: 12/26/2023] Open
Abstract
Exogenous nutrients are essential for body and skeletal muscle growth in newly hatched chicks, and delaying post-hatch feeding negatively affects body growth, meat yield, and meat quality. The aim of this study was to investigate the effects of delayed post-hatch feeding on the metabolic profiles of broiler chickens using a combination of targeted and untargeted metabolomics. Newly hatched chicks had either immediate free access to feed (freely fed chicks) or no access to feed from 0 to 2 days of age (delayed-fed chicks); both groups were subsequently provided feed ad libitum until 13 days of age. Untargeted metabolomic analysis was performed using gas chromatography-mass spectrometry, whereas targeted metabolomic analysis of amino acids was performed using high-performance liquid chromatography with ortho-phthalaldehyde derivatization. Delayed feeding increased the plasma levels of sucrose, maltose, serotonin, lactitol, gentiobiose, xylitol, threonic acid, and asparagine, and decreased the plasma levels of creatinine, aspartic acid, and glutamic acid. In addition, the digestibility of the nitrogen-free extract (starch and sugar) and the cecal butyric acid concentration increased in chicks subjected to delayed feeding. In contrast, delayed feeding did not affect muscle protein degradation or digestibility in chicks. Taken together, our results indicate that delaying feeding until 48 h post-hatch alters multiple metabolic pathways, which are accompanied by changes in intestinal carbohydrate digestion and cecal butyric acid content in broiler chickens.
Collapse
Affiliation(s)
- Ayumi Katafuchi
- Graduate School of
Agriculture, Forestry and Fisheries, Kagoshima
University, 1-21-24 Korimoto, Kagoshima 890-0065,
Japan
| | - Saki Shimamoto
- Graduate School of
Science and Technology, Niigata University, 8050
Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181,
Japan
| | - Mana Kawaguchi
- Department of
Biochemical Science and Technology, Kagoshima
University, 1-21-24 Korimoto, Kagoshima 890-0065,
Japan
| | - Shozo Tomonaga
- Division of
Applied Biosciences, Graduate School of
Agriculture, Kyoto University, Sakyo-ku, Kyoto
606-8502, Japan
| | - Kazuki Nakashima
- Division of Meat
Animal and Poultry Research, Institute of
Livestock and Grassland Science, NARO, Tsukuba,
Japan
| | - Shinya Ishihara
- Graduate School of
Applied Life Science, Nippon Veterinary and Life
Science University, 1-7-1 Kyonan-cho, Musashino,
Tokyo 180-8602, Japan
| | - Akira Ohtsuka
- Graduate School of
Agriculture, Forestry and Fisheries, Kagoshima
University, 1-21-24 Korimoto, Kagoshima 890-0065,
Japan
- Department of
Biochemical Science and Technology, Kagoshima
University, 1-21-24 Korimoto, Kagoshima 890-0065,
Japan
- The United
Graduate School of Agricultural Sciences,
Kagoshima University, 1-21-24 Korimoto, Kagoshima
890-0065, Japan
| | - Daichi Ijiri
- Graduate School of
Agriculture, Forestry and Fisheries, Kagoshima
University, 1-21-24 Korimoto, Kagoshima 890-0065,
Japan
- Department of
Biochemical Science and Technology, Kagoshima
University, 1-21-24 Korimoto, Kagoshima 890-0065,
Japan
- The United
Graduate School of Agricultural Sciences,
Kagoshima University, 1-21-24 Korimoto, Kagoshima
890-0065, Japan
| |
Collapse
|
2
|
Peplinski BS, Buber J, Gharib SA, Pi H, Raftery D, Leary PJ. Associations of Histamine Metabolites with Disease Severity and Mortality in Pulmonary Arterial Hypertension. Ann Am Thorac Soc 2023; 20:1676-1679. [PMID: 37668470 PMCID: PMC10632929 DOI: 10.1513/annalsats.202304-302rl] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 08/17/2023] [Indexed: 09/06/2023] Open
|
3
|
Kośliński P, Rzepiński Ł, Daghir-Wojtkowiak E, Koba M, Maciejek Z. Serum amino acid profiles in patients with myasthenia gravis. Amino Acids 2023; 55:1157-1172. [PMID: 37474707 PMCID: PMC10564828 DOI: 10.1007/s00726-023-03303-3] [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: 05/23/2023] [Accepted: 07/04/2023] [Indexed: 07/22/2023]
Abstract
Myasthenia gravis (MG) is an autoimmune disease characterized by weakness and rapid fatigue. Diagnostic methods used for myasthenia gravis are not conclusive and satisfactory, therefore it is necessary to develop reliable tools to help diagnose myasthenia gravis as early as possible. The aim of the study was to use HPLC-MS in conjunction with multivariate statistical analyses to investigate changes in the amino acid metabolic profiles between myasthenia gravis patients compared and controls. In addition, the effect of treatment regimens and myasthenia gravis type, on the observed changes in amino acid metabolic profiles were assessed. Serum levels of 29 amino acids were determined in 2 groups of individuals-28 patients with myasthenia gravis and 53 control subjects (CS). The results of our study indicate that serum levels of several amino acids in patients with myasthenia gravis changed significantly compared to the control group. Statistical analysis revealed differences between amino acids concentration in patients with different therapeutic scheme. In conclusion, amino acids may be involved in mechanisms underlying myasthenia gravis pathogenesis as well as may be potential biomarkers in MG patients diagnosis. However, considering the multifactorial, heterogenous and complex nature of this disease, validation on a larger study sample in further research is required before application into diagnostic practice.
Collapse
Affiliation(s)
- Piotr Kośliński
- Department of Toxicology and Bromatology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Dr. A. Jurasza 2, 85-089, Bydgoszcz, Poland.
| | - Łukasz Rzepiński
- Department of Neurology, 10th Military Research Hospital and Polyclinic, Powstańców Warszawy 5, 85-681, Bydgoszcz, Poland
- Sanitas - Neurology Outpatient Clinic, Bydgoszcz, Poland
| | | | - Marcin Koba
- Department of Toxicology and Bromatology, Collegium Medicum in Bydgoszcz, Nicolaus Copernicus University in Toruń, Dr. A. Jurasza 2, 85-089, Bydgoszcz, Poland
| | - Zdzisław Maciejek
- Department of Neurology, 10th Military Research Hospital and Polyclinic, Powstańców Warszawy 5, 85-681, Bydgoszcz, Poland
- Sanitas - Neurology Outpatient Clinic, Bydgoszcz, Poland
| |
Collapse
|
4
|
Shiraishi JI, Ijiri D, Katafuchi A, Tomonaga S, Shimamoto S, Do H, Ishihara S, Ohtsuka A. Quantification of N τ -Methylhistidine and N π-Methylhistidine in Chicken Plasma by Liquid Chromatography-Tandem Mass Spectrometry. J Poult Sci 2023; 60:2023017. [PMID: 37484878 PMCID: PMC10357029 DOI: 10.2141/jpsa.2023017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 05/25/2023] [Indexed: 07/25/2023] Open
Abstract
The concentration of Nτ-methylhistidine in plasma provides an index of skeletal muscle protein breakdown. This study aimed to establish a quantitative method for measuring the concentrations of Nτ-methylhistidine and its isomer Nπ-methylhistidine in chicken plasma, using liquid chromatography-tandem mass spectrometry with stable isotope dilution analysis. The acceptable linear ranges of detection were 1.56-50.00 μmol/L for Nτ-methylhistidine and 0.78-25.00 μmol/L for Nπ-methylhistidine. The proposed method detected changes in the plasma levels of Nτ-methylhistidine and Nπ-methylhistidine in response to fasting and re-feeding. These results suggest that the method developed in this study can be used for the simultaneous measurement of Nτ-methylhistidine and Nπ-methylhistidine in chicken plasma.
Collapse
Affiliation(s)
- Jun-ichi Shiraishi
- Graduate School of Applied Life Science, Nippon Veterinary
and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Daichi Ijiri
- Graduate School of Agriculture, Forestry and Fisheries,
Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- The United Graduate School of Agricultural Sciences,
Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Ayumi Katafuchi
- Graduate School of Agriculture, Forestry and Fisheries,
Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Shozo Tomonaga
- Graduate School of Agriculture, Kyoto University, Sakyo-ku,
Kyoto 606-8502, Japan
| | - Saki Shimamoto
- Graduate School of Science and Technology, Niigata
University, 8050 Ikarashi 2-no-cho, Nishi-ku, Niigata 950-2181, Japan
| | - Hanwool Do
- Graduate School of Agriculture, Kyoto University, Sakyo-ku,
Kyoto 606-8502, Japan
| | - Shinya Ishihara
- Graduate School of Applied Life Science, Nippon Veterinary
and Life Science University, 1-7-1 Kyonan-cho, Musashino, Tokyo 180-8602, Japan
| | - Akira Ohtsuka
- Graduate School of Agriculture, Forestry and Fisheries,
Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
- The United Graduate School of Agricultural Sciences,
Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| |
Collapse
|
5
|
Malsagova KA, Kopylov AT, Stepanov AA, Enikeev DV, Potoldykova NV, Balakin EI, Pustovoyt VI, Kaysheva AL. Molecular Profiling of Athletes Performing High-Intensity Exercises in Extreme Environments. Sports (Basel) 2023; 11:sports11020036. [PMID: 36828321 PMCID: PMC9963857 DOI: 10.3390/sports11020036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2022] [Revised: 01/24/2023] [Accepted: 01/31/2023] [Indexed: 02/05/2023] Open
Abstract
The aim of this study was to determine the influence of high-intensity training under extreme conditions (T = 40 °C) on the metabolism and immunological reactions of athletes. Male triathletes (n = 11) with a high level of sports training performed load testing to failure (17 ± 2.7 min) and maximum oxygen consumption (64.1 ± 6.4 mL/min/kg). Blood plasma samples were collected before and immediately after exercise. Mass spectrometric metabolomic analysis identified 30 metabolites and 6 hormones in the plasma, of which 21 and 4 changed after exercise, respectively. Changes in the intermediate products of tricarboxylic and amino acids were observed (FC > 1.5) after exercise. The obtained data can be associated with the effect of physical activity on metabolism in athletes. Therefore, constant monitoring of the biochemical parameters of athletes can help coaches identify individual shortcomings in a timely manner and track changes, especially as the volume of training increases. In addition, it was revealed that the immunological reaction (manifestation of a hyperactive reaction to food components) is personalized in nature. Therefore, it is important for coaches and sports doctors to analyze and control the eating behavior of athletes to identify food intolerances or food allergies in a timely manner and develop an individual elimination diet.
Collapse
Affiliation(s)
- Kristina A. Malsagova
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 109028 Moscow, Russia
- Correspondence: ; Tel.: +7-499-764-98-78
| | - Arthur T. Kopylov
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 109028 Moscow, Russia
| | - Alexander A. Stepanov
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 109028 Moscow, Russia
| | - Dmitry V. Enikeev
- Institute for Urology and Reproductive Health, First Moscow State Medical Sechenov University, 119992 Moscow, Russia
| | - Natalia V. Potoldykova
- Institute for Urology and Reproductive Health, First Moscow State Medical Sechenov University, 119992 Moscow, Russia
| | - Evgenii I. Balakin
- State Research Center–Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Vasiliy I. Pustovoyt
- State Research Center–Burnasyan Federal Medical Biophysical Center of Federal Medical Biological Agency, 119435 Moscow, Russia
| | - Anna L. Kaysheva
- Biobanking Group, Branch of Institute of Biomedical Chemistry “Scientific and Education Center”, 109028 Moscow, Russia
| |
Collapse
|
6
|
Ruan Y, Song SJ, Yin ZF, Wang M, Huang N, Gu W, Ling CQ. Comprehensive evaluation of military training-induced fatigue among soldiers in China: A Delphi consensus study. Front Public Health 2022; 10:1004910. [PMID: 36523578 PMCID: PMC9745162 DOI: 10.3389/fpubh.2022.1004910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Accepted: 11/02/2022] [Indexed: 12/02/2022] Open
Abstract
Objective Military training-induced fatigue (MIF) often results into non-combat attrition. However, standard evaluation of MIF is unavailable. This study aimed to provide credible suggestions about MIF-evaluation. Methods A 3-round Delphi study was performed. The authority of the experts was assessed by the authority coefficient (Aa). In round 1, categories of indicators were collected via anonymous survey of experts, then potential indicators were selected via literature search. In round 2, experts should evaluate the clinical implication, practical value, and importance of each potential indicators, or recommend new indicators based on feedback of round 1. Indicators with recommendation proportions ≥ 70% and new recommended indicators would be included in round 3 to be rated on a 5-point Likert scale. "Consensus in" was achieved when coefficient of concordance (Kendall's W) of a round was between 0.2 and 0.5 and the coefficient of variation (CV) of each aspect for an indicator was < 0.5. If round 3 could not achieve "consensus in," more rounds would be conducted iteratively based on round 3. Indicators included in the recommendation set were ultimately classified into grade I (highly recommended) or grade II (recommended) according to the mean score and CV of the aspects. Results Twenty-three experts participated with credible authority coefficient (mean Aa = 0.733). "Consensus in" was achieved in round 3 (Kendall's W = 0.435, p < 0.001; all CV < 0.5). Round 1 recommended 10 categories with 73 indicators identified from 2,971 articles. After 3-round consultation, consensus was reached on 28 indicators focusing on the cardiovascular system (n = 4), oxygen transport system (n = 5), energy metabolism/metabolite level (n = 6), muscle/tissue damage level (n = 3), neurological function (n = 2), neuropsychological/psychological function (n = 3), endocrine function (n = 3), and exercise capacity (n = 2). Among these, 11 indicators were recommended as grade I: basic heart rate, heart-rate recovery time, heart rate variability, hemoglobin, blood lactic acid, urine protein, creatine kinase, reaction time, Borg Rating of Perceived Exertion Scale, testosterone/cortisol, and vertical jump height. Conclusion This study developed a reliable foundation for the comprehensive evaluation of MIF among soldiers.
Collapse
Affiliation(s)
- Yi Ruan
- Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai, China,PLA Naval Medical Center, Shanghai, China
| | - Shang-jin Song
- Department of Traditional Chinese Medicine, Xingcheng Sanatorium of PLA Strategic Support Force, Xingcheng, China
| | - Zi-fei Yin
- Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai, China
| | - Man Wang
- Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai, China
| | - Nian Huang
- Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai, China
| | - Wei Gu
- Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai, China,*Correspondence: Wei Gu ;
| | - Chang-quan Ling
- Faculty of Traditional Chinese Medicine, Naval Medical University, Shanghai, China,Chang-quan Ling
| |
Collapse
|
7
|
Frailty in Aging and the Search for the Optimal Biomarker: A Review. Biomedicines 2022; 10:biomedicines10061426. [PMID: 35740447 PMCID: PMC9219911 DOI: 10.3390/biomedicines10061426] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Revised: 06/07/2022] [Accepted: 06/07/2022] [Indexed: 01/09/2023] Open
Abstract
In the context of accelerated aging of the population worldwide, frailty has emerged as one of the main risk factors that can lead to loss of self-sufficiency in older people. This syndrome is defined as a reduced state of physiological reserve and functional capacity. The main diagnostic tools for frailty are based on scales that show deficits compared to their clinical application, such as the Fried frailty phenotype, among others. In this context, it is important to have one or more biomarkers with clinical applicability that can objectively and precisely determine the degree or risk of frailty in older people. The objective of this review was to analyze the biomarkers associated with frailty, classified according to the pathophysiological components of this syndrome (inflammation, coagulation, antioxidants, and liver function, among others). The evidence demonstrates that biomarkers associated with inflammation, oxidative stress, skeletal/cardiac muscle function, and platelet function represent the most promising markers of frailty due to their pathophysiological association with this syndrome. To a lesser extent but with the possibility of greater innovation, biomarkers associated with growth factors, vitamins, amino acids, and miRNAs represent alternatives as markers of this geriatric syndrome. Likewise, the incorporation of artificial intelligence represents an interesting approach to strengthening the diagnosis of frailty by biomarkers.
Collapse
|
8
|
Common and diet-specific metabolic pathways underlying residual feed intake in fattening Charolais yearling bulls. Sci Rep 2021; 11:24346. [PMID: 34934071 PMCID: PMC8692463 DOI: 10.1038/s41598-021-03678-x] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Accepted: 12/01/2021] [Indexed: 02/06/2023] Open
Abstract
Residual feed intake (RFI) is one of the preferred traits for feed efficiency animal breeding. However, RFI measurement is expensive and time-consuming and animal ranking may depend on the nature of the diets. We aimed to explore RFI plasma biomarkers and to unravel the underlying metabolic pathways in yearling bulls fed either a corn-silage diet rich in starch (corn diet) or a grass-silage diet rich in fiber (grass diet). Forty-eight extreme RFI animals (Low-RFI, n = 24, versus High-RFI, n = 24, balanced per diet) were selected from a population of 364 Charolais bulls and their plasma was subjected to a targeted LC-MS metabolomic approach together with classical metabolite and hormonal plasma analyses. Greater lean body mass and nitrogen use efficiency, and lower protein turnover were identified as common mechanisms underlying RFI irrespective of the diet. On the other hand, greater adiposity and plasma concentrations of branched-chain amino acids (BCAA) together with lower insulin sensitivity in High-RFI animals were only observed with corn diet. Conversely, greater plasma concentrations of BCAA and total triglycerides, but similar insulin concentrations were noted in efficient RFI cattle with grass diet. Our data suggest that there are diet-specific mechanisms explaining RFI differences in fattening Charolais yearling bulls.
Collapse
|
9
|
Bernard A, Le May C, Dastugue A, Ayer A, Blanchard C, Martin JC, Pais de Barros JP, Delaby P, Le Bourgot C, Ledoux S, Besnard P. The Tryptophan/Kynurenine Pathway: A Novel Cross-Talk between Nutritional Obesity, Bariatric Surgery and Taste of Fat. Nutrients 2021; 13:nu13041366. [PMID: 33921805 PMCID: PMC8073116 DOI: 10.3390/nu13041366] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2021] [Revised: 04/06/2021] [Accepted: 04/16/2021] [Indexed: 02/07/2023] Open
Abstract
Diet-induced obesity (DIO) reduces the orosensory perception of lipids in rodents and in some humans. Although bariatric surgery partially corrects this alteration, underlying mechanisms remain poorly understood. To explore whether metabolic changes might explain this fat taste disturbance, plasma metabolome analyses, two-bottle choice tests and fungiform papillae (Fun) counting were performed in vertical sleeve gastrectomized (VSG) mice and sham-operated controls. An exploratory clinic study was also carried out in adult patients undergone a VSG. In mice, we found that (i) the VSG reduces both the plasma neurotoxic signature due to the tryptophan/kynurenine (Trp/Kyn) pathway overactivation and the failure of fat preference found in sham-operated DIO mice, (ii) the activity of Trp/Kyn pathway is negatively correlated to the density of Fun, and (iii) the pharmacological inhibition of the Kyn synthesis mimics in non-operated DIO mice the positive effects of VSG (i.e., decrease of Kyn synthesis, increase of Fun number, improvement of the fat taste perception). In humans, a reduction of the plasma Kyn level is only found in patients displaying a post-surgery improvement of their fat taste sensitivity. Altogether these data provide a plausible metabolic explanation to the degradation of the orosensory lipid perception observed in obesity.
Collapse
Affiliation(s)
- Arnaud Bernard
- UMR 1231 Lipides/Nutrition/Cancer INSERM/Univ Bourgogne-Franche-Comté/AgroSupDijon, 21000 Dijon, France; (A.B.); (A.D.); (J.-P.P.d.B.)
| | - Cédric Le May
- UMR 1087 INSERM/6291 CNRS Université de Nantes, l’Institut du Thorax, 44000 Nantes, France; (C.L.M.); (A.A.); (C.B.)
| | - Aurélie Dastugue
- UMR 1231 Lipides/Nutrition/Cancer INSERM/Univ Bourgogne-Franche-Comté/AgroSupDijon, 21000 Dijon, France; (A.B.); (A.D.); (J.-P.P.d.B.)
| | - Audrey Ayer
- UMR 1087 INSERM/6291 CNRS Université de Nantes, l’Institut du Thorax, 44000 Nantes, France; (C.L.M.); (A.A.); (C.B.)
| | - Claire Blanchard
- UMR 1087 INSERM/6291 CNRS Université de Nantes, l’Institut du Thorax, 44000 Nantes, France; (C.L.M.); (A.A.); (C.B.)
| | | | - Jean-Paul Pais de Barros
- UMR 1231 Lipides/Nutrition/Cancer INSERM/Univ Bourgogne-Franche-Comté/AgroSupDijon, 21000 Dijon, France; (A.B.); (A.D.); (J.-P.P.d.B.)
| | | | | | - Séverine Ledoux
- Explorations Fonctionnelles, Hôpital Louis Mourier (APHP), Colombes and Université de Paris, 92700 Nanterre, France;
- Fonctions Gastro-Intestinales, Métaboliques et Physiopathologies Nutritionnelles INSERM UMR1149, CEDEX 18, 75890 Paris, France
| | - Philippe Besnard
- UMR 1231 Lipides/Nutrition/Cancer INSERM/Univ Bourgogne-Franche-Comté/AgroSupDijon, 21000 Dijon, France; (A.B.); (A.D.); (J.-P.P.d.B.)
- Physiologie de la Nutrition, AgroSup Dijon, 26 Bd Dr Petitjean, 21000 Dijon, France
- Correspondence:
| |
Collapse
|
10
|
Holeček M. Histidine in Health and Disease: Metabolism, Physiological Importance, and Use as a Supplement. Nutrients 2020; 12:nu12030848. [PMID: 32235743 PMCID: PMC7146355 DOI: 10.3390/nu12030848] [Citation(s) in RCA: 171] [Impact Index Per Article: 42.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 03/19/2020] [Accepted: 03/20/2020] [Indexed: 12/19/2022] Open
Abstract
L-histidine (HIS) is an essential amino acid with unique roles in proton buffering, metal ion chelation, scavenging of reactive oxygen and nitrogen species, erythropoiesis, and the histaminergic system. Several HIS-rich proteins (e.g., haemoproteins, HIS-rich glycoproteins, histatins, HIS-rich calcium-binding protein, and filaggrin), HIS-containing dipeptides (particularly carnosine), and methyl- and sulphur-containing derivatives of HIS (3-methylhistidine, 1-methylhistidine, and ergothioneine) have specific functions. The unique chemical properties and physiological functions are the basis of the theoretical rationale to suggest HIS supplementation in a wide range of conditions. Several decades of experience have confirmed the effectiveness of HIS as a component of solutions used for organ preservation and myocardial protection in cardiac surgery. Further studies are needed to elucidate the effects of HIS supplementation on neurological disorders, atopic dermatitis, metabolic syndrome, diabetes, uraemic anaemia, ulcers, inflammatory bowel diseases, malignancies, and muscle performance during strenuous exercise. Signs of toxicity, mutagenic activity, and allergic reactions or peptic ulcers have not been reported, although HIS is a histamine precursor. Of concern should be findings of hepatic enlargement and increases in ammonia and glutamine and of decrease in branched-chain amino acids (valine, leucine, and isoleucine) in blood plasma indicating that HIS supplementation is inappropriate in patients with liver disease.
Collapse
Affiliation(s)
- Milan Holeček
- Department of Physiology, Faculty of Medicine in Hradec Králové, Charles University, Šimkova 870, 500 38 Hradec Kralove, Czech Republic
| |
Collapse
|
11
|
Kawaguchi M, Nishikoba N, Shimamoto S, Tomonaga S, Kohrogi R, Yamauchi Y, Fujita Y, Ohtsuka A, Ijiri D. Feeding the Outer Bran Fraction of Rice Alters Hepatic Carbohydrate Metabolism in Rats. Nutrients 2020; 12:nu12020430. [PMID: 32046170 PMCID: PMC7071268 DOI: 10.3390/nu12020430] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/27/2020] [Accepted: 02/05/2020] [Indexed: 02/08/2023] Open
Abstract
Dietary intake of fiber-rich food has been reported to contribute to multiple health benefits. The aim of the current study is to investigate the effects of a diet containing the outer bran fraction of rice (OBFR), which is rich in insoluble fiber, on the intestinal environment and metabolite profiles of rats. Fourteen 8-week-old male Sprague–Dawley rats were divided into a control group and an OBFR group. For a period of 21 days, the control group was fed a control diet, while the OBFR group was fed a diet containing 5% OBFR. Metabolomics analysis revealed drastic changes in the cecal metabolites of the rats fed the OBFR diet. Furthermore, in the plasma and liver tissue, the concentrations of metabolites involved in pyruvate metabolism, the pentose phosphate pathway, gluconeogenesis, or valine, leucine, isoleucine degradation were changed. Concordantly, the OBFR diet increased the expression of genes encoding enzymes involved in these metabolic pathways in the livers of the rats. Collectively, these results suggest that the OBFR diet altered the concentrations of metabolites in the cecal contents, plasma, and liver, and the hepatic gene expressions of rats, and that this may have mainly contributed to carbohydrate metabolism in the liver.
Collapse
Affiliation(s)
- Mana Kawaguchi
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (M.K.); (N.N.); (S.S.); (R.K.); (A.O.)
| | - Nao Nishikoba
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (M.K.); (N.N.); (S.S.); (R.K.); (A.O.)
| | - Saki Shimamoto
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (M.K.); (N.N.); (S.S.); (R.K.); (A.O.)
| | - Shozo Tomonaga
- Division of Applied Biosciences, Graduate School of Agriculture, Kyoto University, Kitashirakawa Oiwake-cho, Sakyo-ku, Kyoto 606-8502, Japan;
| | - Rukana Kohrogi
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (M.K.); (N.N.); (S.S.); (R.K.); (A.O.)
| | - Yoko Yamauchi
- Shokkyo Co., Ltd., 5-9 Matsukawacho, Minami-ku, Hiroshima 732-0826, Japan; (Y.Y.); (Y.F.)
| | - Yoshikazu Fujita
- Shokkyo Co., Ltd., 5-9 Matsukawacho, Minami-ku, Hiroshima 732-0826, Japan; (Y.Y.); (Y.F.)
| | - Akira Ohtsuka
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (M.K.); (N.N.); (S.S.); (R.K.); (A.O.)
| | - Daichi Ijiri
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan; (M.K.); (N.N.); (S.S.); (R.K.); (A.O.)
- Correspondence: ; Tel.: +81-99-285-8654
| |
Collapse
|
12
|
Tsuruoka K, Kurahara T, Kanamaru H, Takahashi H, Gotoh T. Effect of feeding rice whole crop silage on growth rate, levels of vitamin A, β-carotene, vitamin E and IGF-1 in plasma and skeletal muscle protein degradation in Japanese black calves. Anim Sci J 2019; 90:728-736. [PMID: 31006927 DOI: 10.1111/asj.13198] [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: 05/17/2018] [Revised: 01/04/2019] [Accepted: 01/30/2019] [Indexed: 11/29/2022]
Abstract
This study evaluated the effects of rice whole crop silage (RWCS) on growth, plasma levels of vitamin A, β-carotene, vitamin E and IGF-1, and expression of genes involved in muscle protein degradation and synthesis in Japanese Black calves. Eleven calves were divided into RWCS (fed RWCS ad libitum and concentrate, n = 5) and control groups (fed hay ad libitum and concentrate, n = 6). Final body weight and dairy gain were significantly larger in the RWCS group compared with the control group. Plasma β-carotene and vitamin E concentrations were significantly higher in the RWCS group compared with control group. Although plasma vitamin E concentration in the RWCS group significantly increased from 4 to 9 months of age, it did not increase in the control group. At 6 months of age in the RWCS group, ubiquitin B (p < 0.05) and calpain 1 (p = 0.097) mRNA expression were lower than control group, but they were not different between groups at 9 months of age. These results indicate that RWCS increases plasma β-carotene level and promotes muscle growth because of a decrease in the rate of protein degradation, but the effect is lost with the increase in plasma vitamin E level.
Collapse
Affiliation(s)
- Katsuhiko Tsuruoka
- Livestock Research Institute, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan
| | - Takami Kurahara
- Livestock Research Institute, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan
| | - Hidenobu Kanamaru
- Livestock Research Institute, Oita Prefectural Agriculture, Forestry and Fisheries Research Center, Oita, Japan
| | | | - Takafumi Gotoh
- Kuju Agricultural Research Center, Kyushu University, Oita, Japan.,Department of Agricultural Sciences and Natural Resources, Faculty of Agriculture, Kagoshima University, Kagoshima, Japan
| |
Collapse
|
13
|
Ijiri D, Shimamoto S, Kawaguchi M, Furukawa A, Nakashima K, Tada O, Ohtsuka A. Effects of first exogenous nutrients on the mRNA levels of atrogin-1/MAFbx and GLUT1 in the skeletal muscles of newly hatched chicks. Comp Biochem Physiol A Mol Integr Physiol 2016; 205:8-14. [PMID: 27989496 DOI: 10.1016/j.cbpa.2016.12.014] [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: 07/12/2016] [Revised: 12/09/2016] [Accepted: 12/12/2016] [Indexed: 10/20/2022]
Abstract
The aim of this study was to examine the effects of first exogenous nutrients on the mRNA levels of muscle atrophy F-box (atrogin-1/MAFbx) and glucose transporters (GLUTs) in the skeletal muscles of newly hatched chicks with no feed experience. In experiment 1, newly hatched chicks had free access to feed or were fasted for the first 24h. The chicks having free access to feed for the first 24h increased their body weight and had decreased atrogin-1/MAFbx mRNA levels in their sartorius and pectoralis major muscles compared with the fasted chicks. In experiment 2, newly hatched chicks received a single feed via intubation into the crop. Three hours after intubation, levels of atrogin-1/MAFbx mRNA in the sartorius muscle were decreased whereas the plasma insulin concentration and phosphorylated AKT levels in the sartorius muscle were increased. In addition, the mRNA levels of GLUT1 and GLUT8 were increased in the sartorius muscle after the intubation. However, in the pectoralis major muscle, AKT phosphorylation and levels of atrogin-1/MAFbx, GLUT1 and GLUT8 mRNA were not affected 3h after intubation. The first exogenous nutrients increased the level of phosphorylated AKT in the sartorius muscle of newly hatched chicks, possibly because of the decrease in atrogin-1/MAFbx mRNA levels. Furthermore, the sartorius muscle in newly hatched chicks appeared to be more susceptible to the first feed compared with the pectoralis major muscle.
Collapse
Affiliation(s)
- Daichi Ijiri
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.
| | - Saki Shimamoto
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Mana Kawaguchi
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Airi Furukawa
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Kazuki Nakashima
- Division of Animal Metabolism and Nutrition, Institute of Livestock and Grassland Science, NARO, 2 Ikenodai, Tsukuba 305-0901, Japan
| | - Osamu Tada
- Department of Life and Environmental Science, Kagoshima Prefectural College, 1-52-1 Shimoishiki, Kagoshima 890-0005, Japan
| | - Akira Ohtsuka
- Department of Agricultural Sciences and Natural Resources, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| |
Collapse
|
14
|
Sato T, Yoshida Y, Morita A, Mori N, Miura S. Glycerol-3-phosphate dehydrogenase 1 deficiency induces compensatory amino acid metabolism during fasting in mice. Metabolism 2016; 65:1646-1656. [PMID: 27733253 DOI: 10.1016/j.metabol.2016.08.005] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2016] [Revised: 08/12/2016] [Accepted: 08/17/2016] [Indexed: 12/27/2022]
Abstract
BACKGROUND Glucose is used as an energy source in many organs and obtained from dietary carbohydrates. However, when the external energy supply is interrupted, e.g., during fasting, carbohydrates preserved in the liver and glycogenic precursors derived from other organs are used to maintain blood glucose levels. Glycerol and glycogenic amino acids derived from adipocytes and skeletal muscles are utilized as glycogenic precursors. Glycerol-3-phosphate dehydrogenase 1 (GPD1), an NAD+/NADH-dependent enzyme present in the cytosol, catalyzes the reversible conversion of glycerol-3-phosphate (G3P) to dihydroxyacetone phosphate (DHAP). Since G3P is one of the substrates utilized for gluconeogenesis in the liver, the conversion of G3P to DHAP by GPD1 is essential for maintaining blood glucose levels during fasting. We focused on GPD1 and examined its roles in gluconeogenesis during fasting. METHODS Using GPD1 null model BALB/cHeA mice (HeA mice), we measured gluconeogenesis from glycerol and the change of blood glucose levels under fasting conditions. We also measured gene expression related to gluconeogenesis in the liver and protein metabolism in skeletal muscle. BALB/cBy mice (By mice) were used as a control. RESULTS The blood glucose levels in the HeA mice were lower than that in the By mice after glycerol administration. Although lack of GPD1 inhibited gluconeogenesis from glycerol, blood glucose levels in the HeA mice after 1-4h of fasting were significantly higher than that in the By mice. Muscle protein synthesis in HeA mice was significantly lower than that in the By mice. Moreover, blood alanine levels and usage of alanine for gluconeogenesis in the liver were significantly higher in the HeA mice than that in the By mice. CONCLUSIONS Although these data indicate that a lack of GPD1 inhibits gluconeogenesis from glycerol, chronic GPD1 deficiency may induce an adaptation that enhances gluconeogenesis from glycogenic amino acids.
Collapse
Affiliation(s)
- Tomoki Sato
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Yuma Yoshida
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Akihito Morita
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| | - Nobuko Mori
- Department of Biological Science, Graduate School of Science, Osaka Prefecture University, 1-2 Gakuen-cho, Naka-ku, Sakai 599-8570, Japan.
| | - Shinji Miura
- Laboratory of Nutritional Biochemistry, Graduate School of Nutritional and Environmental Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
| |
Collapse
|
15
|
Shimamoto S, Ijiri D, Nakashima K, Kawaguchi M, Ishimaru Y, Furukawa A, Ohtsuka A. Clenbuterol changes phosphorylated FOXO1 localization and decreases protein degradation in the sartorius muscle of neonatal chicks. Biosci Biotechnol Biochem 2016; 80:1499-504. [DOI: 10.1080/09168451.2016.1158629] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
Abstract
To investigate the intracellular signaling mechanisms by which clenbuterol reduces muscle protein degradation, we examined the phosphorylation level and intracellular localization of FOXO1 in the sartorius muscle of neonatal chicks. One-day-old chicks were given a single intraperitoneal injection of clenbuterol (0.1 mg/kg body weight). Three hours after injection, AKT protein was phosphorylated in the sartorius muscle by clenbuterol injection. Coincidentally, clenbuterol increased cytosolic level of phosphorylated FOXO1 protein, while it decreased nuclear level of FOXO1 protein in the sartorius muscle. Furthermore, clenbuterol decreased the expression of mRNAs for muscle-specific ubiquitin ligases (atrogin-1/MAFbx and MuRF1) in the sartorius muscle accompanied by decreased plasma 3-methylhistidine concentration, an index of muscle protein degradation, at 3 h after injection. These results suggested that, in the sartorius muscle of the chicks, clenbuterol changed the intracellular localization of phosphorylated FOXO1, and consequently decreased protein degradation via suppressing the expression of genes encoding muscle-specific ubiquitin ligases.
Collapse
Affiliation(s)
- Saki Shimamoto
- Department of Biochemical Science and Technology, Kagoshima University, Kagoshima, Japan
| | - Daichi Ijiri
- Department of Biochemical Science and Technology, Kagoshima University, Kagoshima, Japan
| | - Kazuki Nakashima
- Animal Physiology and Nutrition Division, NARO Institute of Livestock and Grassland Science, Tsukuba, Japan
| | - Mana Kawaguchi
- Department of Biochemical Science and Technology, Kagoshima University, Kagoshima, Japan
| | - Yoshitaka Ishimaru
- Department of Biochemical Science and Technology, Kagoshima University, Kagoshima, Japan
| | - Airi Furukawa
- Department of Biochemical Science and Technology, Kagoshima University, Kagoshima, Japan
| | - Akira Ohtsuka
- Department of Biochemical Science and Technology, Kagoshima University, Kagoshima, Japan
| |
Collapse
|
16
|
Sato T, Ito Y, Nagasawa T. Dietary L-Lysine Suppresses Autophagic Proteolysis and Stimulates Akt/mTOR Signaling in the Skeletal Muscle of Rats Fed a Low-Protein Diet. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:8192-8198. [PMID: 26366928 DOI: 10.1021/acs.jafc.5b03811] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Amino acids, especially L-leucine, regulate protein turnover in skeletal muscle and have attracted attention as a means of increasing muscle mass in people suffering from malnutrition, aging (sarcopenia), or a bedridden state. We previously showed that oral administration of L-lysine (Lys) by gavage suppressed proteolysis in skeletal muscles of fasted rats. However, the intake of Lys in the absence of other dietary components is unlikely in a non-experimental setting, and other dietary components may interfere with the suppressive effect of Lys on proteolysis. We supplemented Lys to a 10% casein diet and investigated the effect of Lys on proteolysis and autophagy, a major proteolytic system, in the skeletal muscle of rats. The rate of proteolysis was evaluated from 3-methylhisitidine (MeHis) released from isolated muscles, in plasma, and excreted in urine. Supplementing lysine with the 10% casein diet decreased the rate of proteolysis induced by intake of a low-protein diet. The upregulated autophagy activity [light chain 3 (LC3)-II/total LC3] caused by a low-protein diet was reduced, and the Akt/mTOR signaling pathway was activated by Lys. Importantly, continuous feeding of a Lys-rich 10% casein diet for 15 days increased the masses of the soleus and gastrocnemius muscles. Taken together, supplementation of Lys to a low-protein diet suppresses autophagic proteolysis through the Akt/mTOR signaling pathway, and continuous feeding of a Lys-rich diet may increase skeletal muscle mass.
Collapse
Affiliation(s)
- Tomonori Sato
- Department of Bioresources Science, The United Graduate School of Agricultural Sciences, and ‡Department of Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University , Morioka, Iwate 020-8550, Japan
| | - Yoshiaki Ito
- Department of Bioresources Science, The United Graduate School of Agricultural Sciences, and ‡Department of Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University , Morioka, Iwate 020-8550, Japan
| | - Takashi Nagasawa
- Department of Bioresources Science, The United Graduate School of Agricultural Sciences, and ‡Department of Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University , Morioka, Iwate 020-8550, Japan
| |
Collapse
|
17
|
Yoneyama S, Terashima H, Yamaguchi R, Tadano S, Ohkohchi N. The Negative Impact of Insulin Therapy for Acute Hyperglycemia Secondary to Glucose Load on Plasma Amino Acid Profiles in a Rat Model of Sepsis. Eur Surg Res 2014; 54:34-43. [DOI: 10.1159/000368046] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2014] [Accepted: 09/02/2014] [Indexed: 11/19/2022]
Abstract
Background: In critical illnesses, insulin therapy under overfed conditions with an excessive glucose infusion may cause metabolic disturbances in skeletal muscle mainly through muscle cell glucose uptake and the inhibition of physiological protein breakdown. The aim of this study was to examine the potential negative aspects of insulin therapy in a rat model of sepsis. Materials and Methods: Male Sprague-Dawley rats underwent cecal ligation and puncture (CLP) or sham surgery. A pre-established continuous intravenous glucose infusion was initiated immediately after surgery. Rats with sepsis were divided into four groups (n = 7 in each group) based on target blood glucose (BG) levels: a no glucose (NG) group (100-150 mg/dl), moderate glucose (MG) group (200-300 mg/dl), high glucose (HG) group (>300 mg/dl), and the hyperinsulinemia (HI) group, which received the same glucose infusion as the HG group with the insulin infusion (200-300 mg/dl). The sham group underwent sham surgery and received the same glucose infusion as the HG group. All rats were sacrificed 9 h after surgery, and blood samples were collected to measure plasma amino acid (AA) profiles. To examine survival rates in the 48 h following CLP, the HG, MG, and HI groups were newly prepared according to the aforementioned experimental design. Results: Plasma levels of the branched-chain AAs, glutamine, arginine, citrulline, and alanine among the septic groups slightly and inversely decreased with the amount of glucose infused, and HI had significantly lower values (p < 0.01). A strong correlation was observed among the AAs. Plasma 3-methylhistidine concentrations were the highest in the HI group. The survival rate of the HI group was greater than that of the HG, but did not reach the level of the MG group. Conclusion: In critical illnesses, insulin therapy under overfed conditions may impair the physiological supply of AAs and conditionally essential AA starvation, such as glutamine and arginine, and may have an adverse impact on the prognosis of patients.
Collapse
|
18
|
Saitoh W, Yamauchi S, Watanabe K, Takasaki W, Mori K. Metabolomic analysis of arginine metabolism in acute hepatic injury in rats. J Toxicol Sci 2014; 39:41-50. [PMID: 24418708 DOI: 10.2131/jts.39.41] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
To clarify the relationship between arginine metabolism and hepatic injury, metabolomic analysis was performed in rats treated with 3 representative hepatotoxicants, monocrotaline (MCT), concanavalin A (ConA), and α-naphthyl isothiocyanate (ANIT); or a myotoxicant, tetramethyl-p-phenylenediamine (TMPD). A single dose of MCT, ConA, or ANIT dose-dependently induced hepatocellular necrosis accompanied by decreased blood arginine and increased blood alanine aminotransferase (ALT) and arginase. A close correlation was detected between arginine and ALT (r = -0.746, -0.795, -0.787 for MCT, ConA, ANIT, respectively) or between arginine and arginase (r = -0.605, -0.808, -0.672 for MCT, ConA, ANIT, respectively) in all three hepatic injury models. In contrast, neither hepatocellular necrosis nor alterations in arginine were found in the skeletal muscle injury model, although ALT was slightly increased. An in vitro assay revealed that blood samples obtained from ConA-treated rats transformed external arginine to ornithine, and the reaction was totally inhibited by an arginase inhibitor. These results suggest that blood arginase plays a crucial role in arginine metabolism associated with hepatic injury. In metabolomic analysis, nearly 450 endogenous metabolites were identified in blood obtained from all the models. Among the 13 metabolites involved in arginine metabolism, decreased arginine and increased ornithine occurred in common in the hepatic injury models, whereas citrulline and other metabolites were not altered. These results indicate that arginine metabolism, especially the arginine-to-ornithine pathway, is altered in association with acute hepatic injury. Furthermore, blood arginine and ornithine are possibly specific biomarkers for hepatic injury.
Collapse
Affiliation(s)
- Wataru Saitoh
- Medicinal Safety Research Laboratories, Daiichi Sankyo Co., Ltd., Tokyo
| | | | | | | | | |
Collapse
|
19
|
Sato T, Ito Y, Nagasawa T. Regulation of skeletal muscle protein degradation and synthesis by oral administration of lysine in rats. J Nutr Sci Vitaminol (Tokyo) 2014; 59:412-9. [PMID: 24418875 DOI: 10.3177/jnsv.59.412] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Several catabolic diseases and unloading induce muscle mass wasting, which causes severe pathological progression in various diseases and aging. Leucine is known to attenuate muscle loss via stimulation of protein synthesis and suppression of protein degradation in skeletal muscle. The aim of this study was to investigate the effects of lysine intake on protein degradation and synthesis in skeletal muscle. Fasted rats were administered 22.8-570 mg Lys/100 g body weight and the rates of myofibrillar protein degradation were assessed for 0-6 h after Lys administration. The rates of myofibrillar protein degradation evaluated by MeHis release from the isolated muscles were markedly suppressed after administration of 114 mg Lys/100 g body weight and of 570 mg Lys/100 g body weight. LC3-II, a marker of the autophagic-lysosomal pathway, tended to decrease (p=0.05, 0.08) after Lys intake (114 mg/100 g body weight). However, expression of ubiquitin ligase E3 atrogin-1 mRNA and levels of ubiquitinated proteins were not suppressed by Lys intake. Phosphorylation levels of mTOR, S6K1 and 4E-BP1 in the gastrocnemius muscle were not altered after Lys intake. These results suggest that Lys is able to suppress myofibrillar protein degradation at least partially through the autophagic-lysosomal pathway, not the ubiquitin-proteasomal pathway, whereas Lys might be unable to stimulate protein synthesis within this time frame.
Collapse
Affiliation(s)
- Tomonori Sato
- Biological Chemistry and Food Science, Graduate School of Agriculture, Iwate University
| | | | | |
Collapse
|
20
|
Ijiri D, Ishitani K, Shimamoto S, Ishimaru Y, Ohtsuka A. The effects of intraperitoneal clenbuterol injection on protein degradation and myostatin expression differ between the sartorius and pectoral muscles of neonatal chicks. Gen Comp Endocrinol 2014; 206:111-7. [PMID: 25117456 DOI: 10.1016/j.ygcen.2014.07.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/28/2014] [Revised: 07/25/2014] [Accepted: 07/26/2014] [Indexed: 11/29/2022]
Abstract
The purpose of this study was to investigate the effects of injection of the β2-adrenergic receptor agonist clenbuterol on the skeletal muscles of neonatal chicks (Gallus gallus domesticus). One-day-old chicks were randomly divided into four groups and given a single intraperitoneal injection of clenbuterol (0.01, 0.1, or 1mg/kg) or phosphate-buffered saline. Twenty-four hours after the injection, the sartorius muscles (which consist of both slow- and fast-twitch fibers) of chicks that received 0.01 or 0.1mg/kg clenbuterol were significantly heavier than those of controls, while there were no between-group differences in the weight of the pectoral muscles, which consist of only fast-twitch fibers. Muscle free N(t)-methylhistidine, regarded as an index of myofibrillar proteolysis, was decreased in the sartorius muscle of the clenbuterol-injected chicks, while it was not affected in the pectoral muscles. In the sartorius muscle of the clenbuterol-injected chicks, myostatin and atrogin-1/MAFbx mRNA expressions were decreased, while insulin-like growth factor-I was unaffected. These observations suggested, in 1-day-old chicks, clenbuterol might increase mass of the sartorius muscle by decreasing myostatin gene expression and protein degradation.
Collapse
Affiliation(s)
- Daichi Ijiri
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan.
| | - Kanae Ishitani
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Saki Shimamoto
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Yoshitaka Ishimaru
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| | - Akira Ohtsuka
- Department of Biochemical Science and Technology, Kagoshima University, 1-21-24 Korimoto, Kagoshima 890-0065, Japan
| |
Collapse
|
21
|
Nakashima K, Ishida A, Yakabe Y, Yamazaki M, Abe H. Effects of Orally Administrated Amino Acids on Myofibrillar Proteolysis in Chicks. Biosci Biotechnol Biochem 2014; 70:1975-8. [PMID: 16926512 DOI: 10.1271/bbb.60028] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We examined the effects of orally administrated amino acids on myfibrillar proteolysis in food-deprived chicks. Plasma N(tau)-methylhistidine concentration, as an index of myofibrillar proteolysis, was decreased by the administration of Glu, Gly, Ala, Leu, Ile, Ser, Thr, Met, Trp, Asn, Gln, Pro, Lys and Arg but not by Asp, Val, Phe, Tyr or His to chicks. Orally administrated Cys was fatal to chicks. These results indicate that oral Glu, Gly, Ala, Leu, Ile, Ser, Thr, Met, Trp, Asn, Gln, Pro, Lys and Arg administration suppressed myofibrillar proteolysis in chicks.
Collapse
Affiliation(s)
- Kazuki Nakashima
- Department of Animal Physiology and Nutrition, National Institute of Livestock and Grassland Science, Tsukuba, Japan.
| | | | | | | | | |
Collapse
|
22
|
Nakashima K, Yakabe Y, Yamazaki M, Abe H. Effects of Fasting and Refeeding on Expression of Atrogin-1 and Akt/FOXO Signaling Pathway in Skeletal Muscle of Chicks. Biosci Biotechnol Biochem 2014; 70:2775-8. [PMID: 17090921 DOI: 10.1271/bbb.60274] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
This experiment was conducted to study the effects of fasting and refeeding on expression of the atrogin-1 and Akt/FOXO signaling pathway in skeletal muscle of chicks. Chicks were fasted for 24 h and refed for 2 h. Atrogin-1 mRNA expression was increased by fasting, and their increment was reduced by refeeding. Phosphorylations of Akt and FOXO1 were not decreased by fasting, but, they were increased by refeeding. These results indicate that refeeding stimulates phosphorylation of Akt/FOXO, resulting in a decrease in atrogin-1 expression in skeletal muscle of chicks.
Collapse
Affiliation(s)
- Kazuki Nakashima
- Department of Animal Physiology and Nutrition, National Institute of Livestock and Grassland Science, Tsukuba, Japan.
| | | | | | | |
Collapse
|
23
|
Effects of Feeding Hexane-Extracts of a Shochu Distillery By-Product on Skeletal Muscle Protein Degradation in Broiler Chicken. Biosci Biotechnol Biochem 2014; 74:92-5. [DOI: 10.1271/bbb.90587] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
|
24
|
Shimomura A, Matsui I, Hamano T, Ishimoto T, Katou Y, Takehana K, Inoue K, Kusunoki Y, Mori D, Nakano C, Obi Y, Fujii N, Takabatake Y, Nakano T, Tsubakihara Y, Isaka Y, Rakugi H. Dietary L-lysine prevents arterial calcification in adenine-induced uremic rats. J Am Soc Nephrol 2014; 25:1954-65. [PMID: 24652795 DOI: 10.1681/asn.2013090967] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
Vascular calcification (VC) is a life-threatening complication of CKD. Severe protein restriction causes a shortage of essential amino acids, and exacerbates VC in rats. Therefore, we investigated the effects of dietary l-lysine, the first-limiting amino acid of cereal grains, on VC. Male Sprague-Dawley rats at age 13 weeks were divided randomly into four groups: low-protein (LP) diet (group LP), LP diet+adenine (group Ade), LP diet+adenine+glycine (group Gly) as a control amino acid group, and LP diet+adenine+l-lysine·HCl (group Lys). At age 18 weeks, group LP had no VC, whereas groups Ade and Gly had comparable levels of severe VC. l-Lysine supplementation almost completely ameliorated VC. Physical parameters and serum creatinine, urea nitrogen, and phosphate did not differ among groups Ade, Gly, and Lys. Notably, serum calcium in group Lys was slightly but significantly higher than in groups Ade and Gly. Dietary l-lysine strongly suppressed plasma intact parathyroid hormone in adenine rats and supported a proper bone-vascular axis. The conserved orientation of the femoral apatite in group Lys also evidenced the bone-protective effects of l-lysine. Dietary l-lysine elevated plasma alanine, proline, arginine, and homoarginine but not lysine. Analyses in vitro demonstrated that alanine and proline inhibit apoptosis of cultured vascular smooth muscle cells, and that arginine and homoarginine attenuate mineral precipitations in a supersaturated calcium/phosphate solution. In conclusion, dietary supplementation of l-lysine ameliorated VC by modifying key pathways that exacerbate VC.
Collapse
Affiliation(s)
| | - Isao Matsui
- Departments of Geriatric Medicine and Nephrology and
| | - Takayuki Hamano
- Comprehensive Kidney Disease Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | - Takuya Ishimoto
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | - Yumiko Katou
- Applied Analytical Group, Fundamental Technology Laboratories, Institute for Innovation, Ajinomoto Co., Inc., Kawasaki-ku, Kawasaki, Kanagawa, Japan
| | - Kenji Takehana
- Pharmacology Research Laboratory, Research Institute, Ajinomoto Pharmaceutical Co., Ltd., Kawasaki-ku, Kawasaki, Kanagawa, Japan; and
| | | | | | - Daisuke Mori
- Departments of Geriatric Medicine and Nephrology and
| | | | | | - Naohiko Fujii
- Department of Biostatistics and Epidemiology, University of Pennsylvania, Philadelphia, Pennsylvania
| | | | - Takayoshi Nakano
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, Suita, Osaka, Japan
| | - Yoshiharu Tsubakihara
- Comprehensive Kidney Disease Research, Osaka University Graduate School of Medicine, Suita, Osaka, Japan
| | | | - Hiromi Rakugi
- Departments of Geriatric Medicine and Nephrology and
| |
Collapse
|
25
|
Lysine suppresses protein degradation through autophagic-lysosomal system in C2C12 myotubes. Mol Cell Biochem 2014; 391:37-46. [PMID: 24532005 DOI: 10.1007/s11010-014-1984-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2013] [Accepted: 01/29/2014] [Indexed: 12/17/2022]
Abstract
Muscle mass is determined between protein synthesis and protein degradation. Reduction of muscle mass leads to bedridden condition and attenuation of resistance to diseases. Moreover, bedridden condition leads to additional muscle loss due to disuse muscle atrophy. In our previous study (Sato et al. 2013), we showed that administered lysine (Lys), one of essential amino acid, suppressed protein degradation in skeletal muscle. In this study, we investigated that the mechanism of the suppressive effects of Lys on skeletal muscle proteolysis in C2C12 cell line. C2C12 myotubes were incubated in the serum-free medium containing 10 mM Lys or 20 mM Lys, and myofibrillar protein degradation was determined by the rates of 3-methylhistidine (MeHis) release from the cells. The mammalian target of rapamycin (mTOR) activity from the phosphorylation levels of p70-ribosormal protein S6 kinase 1 and eIF4E-binding protein 1 and the autophagic-lysosomal system activity from the ratio of LC3-II/I in C2C12 myotubes stimulated by 10 mM Lys for 0-3 h were measured. The rates of MeHis release were markedly reduced by addition of Lys. The autophagic-lysosomal system activity was inhibited upon 30 min of Lys supplementation. The activity of mTOR was significantly increased upon 30 min of Lys supplementation. The suppressive effect of Lys on the proteolysis by the autophagic-lysosomal system was maintained partially when mTOR activity was inhibited by 100 nM rapamycin, suggesting that some regulator other than mTOR signaling, for example, Akt, might also suppress the autophagic-lysosomal system. From these results, we suggested that Lys suppressed the activity of the autophagic-lysosomal system in part through activation of mTOR and reduced myofibrillar protein degradation in C2C12 myotubes.
Collapse
|
26
|
Myofibrillar protein overdegradation in overweight patients with chronic heart failure: the relationship to serum potassium levels. Nutrition 2013; 30:436-9. [PMID: 24332527 DOI: 10.1016/j.nut.2013.09.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 07/25/2013] [Accepted: 09/19/2013] [Indexed: 11/21/2022]
Abstract
OBJECTIVES Muscle release of the amino acid 3-methyl-histidine (3MH) is a sensitive index of myofibrillar protein overdegradation (MPO). We hypothesized that patients with chronic heart failure (CHF) could have increased muscle release of 3MH, which in turn reflects MPO, and that serum electrolyte sodium (Na(+)) and potassium (K(+)) levels may be associated with this 3MH muscle release. METHODS Thirty-one overweight outpatients (body mass index, 27 ± 4.4 kg/m(2); 22 men and 9 women; age, 56 ± 8.7 y) with clinically stable CHF were studied. After a 24-hour meat-free diet and overnight fasting, patients underwent blood sampling from a cannulated arm vein (V) and concomitantly from the arterial artery (A) to determine plasma 3MH levels and to calculate the A-V difference. Serum levels of Na(+) and K(+) in the venous blood were determined, and the Na(+)/K(+) ratio was calculated. Ten healthy subjects who were matched for gender, age, and body mass index served as controls and underwent the same protocol as the patients with CHF. RESULTS The patient group had higher arterial (P = 0.02) and venous (P = 0.005) 3MH levels but a similar A-V 3MH difference (P = 0.28) as compared with the controls. Within the CHF group, 67.7% of patients released 3MH, which resulted in a negative A-V value (P < 0.02 as compared with controls). In patients with CHF, the A-V 3MH difference correlated positively with the serum K(+) level (r = 0.62; P = 0.0002) and negatively with Na(+)/K(+) ratio (r = -0.55; P = 0.002). No association was found between the A-V 3MH difference and the Na(+) level. CONCLUSIONS The study demonstrated the existence of MPO in resting overweight patients with CHF, thereby suggesting that low serum levels of K(+) may contribute to MPO.
Collapse
|
27
|
Protein sparing during general anesthesia with a propofol solution containing medium-chain triglycerides for gastrectomy: comparison with sevoflurane anesthesia. J Anesth 2012; 27:359-65. [PMID: 23269509 DOI: 10.1007/s00540-012-1546-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2012] [Accepted: 12/13/2012] [Indexed: 10/27/2022]
Abstract
PURPOSE Despite the importance of the inhibition of catabolic response to surgery, the effects of different anesthetic techniques on the catabolic response in surgical patients are controversial. This study compared the endocrine-metabolic responses and protein catabolism during gastrectomy in patients who received either sevoflurane or propofol anesthesia with remifentanil. METHODS Thirty-seven patients (American Society of Anesthesiologists status I-III) aged 20-79 years undergoing elective gastrectomy were randomly assigned to receive sevoflurane anesthesia with remifentanil (n = 19) or intravenous propofol anesthesia (Propofol-Lipuro(®) 1 %; B. Braun, Melshungen AG, Germany) with remifentanil (n = 18). Urine samples were collected every 1 h after skin incision (0 h) and the urinary 3-methylhistidine:creatinine ratio (3-MH/Cr ratio) was used as a marker of protein catabolism. Respiratory quotient was measured during a 1 h period following skin incision. RESULTS The 3-MH/Cr ratio significantly increased at 1-2 and 2-3 h compared to 0 and 0-1 h in both groups, but the propofol group exhibited a lower 3-MH/Cr ratio (nmol/μmol) than the sevoflurane group at 1-2 h (15.7 vs. 18.2, P = 0.012) and 2-3 h (15.9 vs. 18.1, P = 0.025). A difference was observed in the respiratory quotient between the sevoflurane and propofol groups (0.726 vs. 0.707, P = 0.003). CONCLUSION A lower 3-MH/Cr ratio and a lower respiratory quotient during propofol anesthesia, compared to those exhibited during sevoflurane anesthesia, suggest that protein sparing probably occurs through the utilization of medium-chain triglycerides contained in the fat emulsion of propofol solution as a fuel source.
Collapse
|
28
|
Yokokawa H, Kinoshita I, Hashiguchi T, Kako M, Sasaki K, Tamura A, Kintaka Y, Suzuki Y, Ishizuka N, Arai K, Kasahara Y, Kishi M, Kobayashi Y, Takahashi T, Shimizu H, Inoue S. Enhanced exercise-induced muscle damage and muscle protein degradation in streptozotocin-induced type 2 diabetic rats. J Diabetes Investig 2011; 2:423-8. [PMID: 24843525 PMCID: PMC4014900 DOI: 10.1111/j.2040-1124.2011.00130.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
UNLABELLED Aims/Introduction: The effects of 5-day voluntary exercise on muscle damage and muscle protein degradation were investigated in a streptozotocin-induced rat model of moderately glycemic, uncontrolled, type 2 diabetes. MATERIALS AND METHODS In the preliminary experiment, an oral glucose tolerance (1.0 g/kg) test was carried out to confirm the development of diabetes 3 days after streptozotocin treatment (30 mg/kg). In the genuine experiment, rats were divided into four groups: (i) non-diabetic rats without exercise (controls); (ii) non-diabetic rats with exercise; (iii) diabetic rats without exercise; and (iv) diabetic rats with exercise. After 5 days of voluntary wheel running exercise, blood and 24-h urine were collected, and levels of serum creatine kinase, a marker of muscle damage, and 24-h urinary excretion of muscle degradation products were determined. RESULTS Type 2 diabetic rats with insulin deficiency that exercised had higher serum creatine kinase and greater urinary excretions of creatinine, urea nitrogen and 3-methylhistidine compared with both type 2 diabetic rats with insulin deficiency and non-diabetic rats that did not exercise. However, there were no differences in serum creatine kinase and urinary excretions of creatinine, urea nitrogen and 3-methylhistidine between non-diabetic rats that did and did not exercise. CONCLUSIONS These findings suggest that muscle damage is induced and muscle protein degradation are enhanced by chronic moderate exercise in moderately glycemic uncontrolled type 2 diabetic rats with insulin deficiency at an intensity level of exercise that does not affect muscle damage and muscle protein degradation in non-diabetic rats. (J Diabetes Invest, doi: 10.1111/j.2040-1124.2011.00130.x, 2011).
Collapse
Affiliation(s)
- Hirohide Yokokawa
- Department of General Medicine, Juntendo University School of Medicine
| | - Ikiko Kinoshita
- Department of Nutrition, Faculty of Home Economics, Kyoritsu Women’s University, Tokyo
| | - Takeo Hashiguchi
- Department of Nutrition, Faculty of Home Economics, Kyoritsu Women’s University, Tokyo
| | - Masako Kako
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Kahoru Sasaki
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Akira Tamura
- Department of Nutrition, Faculty of Health Science, Chukyo Women’s University, Nagoya
| | - Yuri Kintaka
- Department of Food Science, Faculty of Dairy Science, Rakuno Gakuen University, Ebetsu, Japan
| | - Yoko Suzuki
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Noriko Ishizuka
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Katsumi Arai
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Yoshiko Kasahara
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Mikiko Kishi
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Yoko Kobayashi
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Tosei Takahashi
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Hiroyuki Shimizu
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| | - Shuji Inoue
- Department of Nursing and Department of Nutrition, Faculty of Health Care, Kiryu University, Midori
| |
Collapse
|
29
|
Yamasaki K, Inagaki Y, Mochida S, Funaki K, Takahashi S, Sakamoto S. Effect of intraoperative acetated Ringer's solution with 1% glucose on glucose and protein metabolism. J Anesth 2010; 24:426-31. [PMID: 20300778 DOI: 10.1007/s00540-010-0926-1] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2009] [Accepted: 02/16/2010] [Indexed: 01/04/2023]
Abstract
PURPOSE To investigate the effects of the intraoperative administration of Ringer's solution with 1% glucose on the metabolism of glucose, lipid and muscle protein during surgery. METHODS Thirty-one adult patients, American Society of Anesthesiologists physical status I or II, undergoing elective otorhinolaryngeal, head and neck surgeries were randomly assigned to one of two patient groups: those receiving acetated Ringer's solution with 1% glucose (Group G) or those receiving acetated Ringer's solution without glucose (Group R) throughout the surgical procedure. Plasma glucose was measured at anesthetic induction (T0), artery 1 h (T1), 2 h (T2), 3 h after anesthetic induction (T3) and at the end of surgery (T4). Plasma ketone bodies, insulin and 3-methylhistidine were measured at T0 and T4. RESULTS The intravenous infusion for patients in Group G and R was 6.1 + or - 0.8 and 6.3 + or - 1.7 ml/kg/h, respectively, with Group G patients receiving a dose of 4.1 g/h glucose. Plasma glucose levels were significantly higher in Group G than in Group R patients at T1, T2, T3 and T4; however, plasma glucose remained <150 mg/dl in both groups. The plasma concentration of ketone bodies was significantly higher (P < 0.05) in Group R than in Group G patients at T4. Changes in plasma 3-methylhistidine concentration was significantly lower in Group G than in Group R patients. These results indicate that acetated Ringer's solution with 1% glucose decreased protein catabolism without hyperglycemia among the Group G patients. CONCLUSION The infusion of a small dose of glucose (1%) during minor otorhinolaryngeal, head and neck surgeries may suppress protein catabolism without hyperglycemia and hypoglycemia.
Collapse
Affiliation(s)
- Kazumasa Yamasaki
- Department of Anesthesiology and Critical Care Medicine, Tottori University Faculty of Medicine, 36-1 Nishi-cho, Yonago 683-8504, Japan.
| | | | | | | | | | | |
Collapse
|
30
|
Effect of Orally Administered Taurine on Myofibrillar Proteolysis and Expression of Proteolytic-Related Genes of Skeletal Muscle in Chicks. J Poult Sci 2009. [DOI: 10.2141/jpsa.46.328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
|
31
|
SUGAWARA T, ITO Y, NISHIZAWA N, SUZUKI H, KOBAYASHI H, NAGASAWA T. Measurement of the Rate of Myofibrillar Protein Degradation Using the Arteriovenous Difference in Plasma 3-Methylhistidine Concentration of Rats. J Nutr Sci Vitaminol (Tokyo) 2009; 55:381-4. [DOI: 10.3177/jnsv.55.381] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
32
|
Regulation of muscle protein degradation, not synthesis, by dietary leucine in rats fed a protein-deficient diet. Amino Acids 2008; 37:609-16. [PMID: 18787757 DOI: 10.1007/s00726-008-0180-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2008] [Accepted: 08/29/2008] [Indexed: 10/21/2022]
Abstract
The aim of this study was to elucidate the effects of long-term intake of leucine in dietary protein malnutrition on muscle protein synthesis and degradation. A reduction in muscle mass was suppressed by leucine-supplementation (1.5% leucine) in rats fed protein-free diet for 7 days. Furthermore, the rate of muscle protein degradation was decreased without an increase in muscle protein synthesis. In addition, to elucidate the mechanism involved in the suppressive effect of leucine, we measured the activities of degradation systems in muscle. Proteinase activity (calpain and proteasome) and ubiquitin ligase mRNA (Atrogin-1 and MuRF1) expression were not suppressed in animals fed a leucine-supplemented diet, whereas the autophagy marker, protein light chain 3 active form (LC3-II), expression was significantly decreased. These results suggest that the protein-free diet supplemented with leucine suppresses muscle protein degradation through inhibition of autophagy rather than protein synthesis.
Collapse
|
33
|
Neumann S, Welling H, Bilzer T, Thuere S. Myopathy and alterations in serum 3-methylhistidine in dogs with liver disease. Res Vet Sci 2008; 84:178-84. [PMID: 17643456 DOI: 10.1016/j.rvsc.2007.05.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2006] [Revised: 03/01/2007] [Accepted: 05/16/2007] [Indexed: 10/23/2022]
Abstract
Liver disease can influence the metabolism of various other organs. Regarding the influence of liver diseases on muscles, only a few studies done on people exist. The goal of our study was to investigate the influence of liver diseases on muscles in dogs. Twenty-eight dogs with different liver diseases were investigated in this study. The diagnosis of muscle alteration was based on electromyography (EMG), creatine kinase serum activity, 3-methylhistidine serum concentration and a muscle biopsy in some cases. Our results suggest that liver diseases in dogs can be accompanied with muscle alteration. 3-Methylhistidine serum concentration as a new parameter for muscle destruction in dogs was significantly increased compared to clinical healthy dogs and was comparable to those concentrations in dogs with histologically confirmed myopathy of different types. The differentiation of the liver diseases into severe hepatitis, moderate hepatitis and liver tumours showed a significant elevation of 3-methylhistidine serum concentration in cases of liver tumours (P=0.03) and a tendency in cases of severe hepatitis (P=0.07). Based on our study we can conclude that liver diseases have an influence on muscles in dogs and 3-methylhistidine could be a useful parameter for muscle destruction.
Collapse
Affiliation(s)
- Stephan Neumann
- Institute of Veterinary Medicine, University of Goettingen, Burckhardtweg 2, D-37077, Goettingen, Germany.
| | | | | | | |
Collapse
|
34
|
KAMIYA M, KAMIYA Y, TANAKA M, SHIOYA S. Changes of plasma free amino acid concentrations and myofibrillar proteolysis index by starvation in non-pregnant dry cows. Anim Sci J 2008. [DOI: 10.1111/j.1740-0929.2007.00497.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
35
|
YAMAOKA I, MIKURA M, NISHIMURA M, DOI M, KAWANO Y, NAKAYAMA M. Enhancement of Myofibrillar Proteolysis Following Infusion of Amino Acid Mixture Correlates Positively with Elevation of Core Body Temperature in Rats. J Nutr Sci Vitaminol (Tokyo) 2008; 54:467-74. [DOI: 10.3177/jnsv.54.467] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
36
|
Akamatsu H, Saitoh Y, Serizawa M, Miyake K, Ohba Y, Nakashima K. Changes of serum 3-methylhistidine concentration and energy-associated metabolites in dairy cows with ketosis. J Vet Med Sci 2007; 69:1091-3. [PMID: 17984601 DOI: 10.1292/jvms.69.1091] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The present study examined the Serum 3-methylhistidine concentrations and energy-associated variables of 5 healthy Holstein cows and 5 Holstein cows with ketosis. The serum total cholesterol and apolipoprotein B-100 concentrations and lecithin-cholesterol acyltransferase (LCAT) activity of the ketotic cows were lower than those of the healthy cows 14 days before parturition. The serum non-esterified fatty acid (NEFA) concentration on the day of parturition and 3-methylhistidine concentration 14 days after parturition were higher in the ketotic cows. The serum 3-methylhistidine concentration 14 days after parturition was negatively correlated with the serum LCAT activity 14 days before parturition and was positively correlated with the serum NEFA concentration on the day of parturition. Insufficiency of cholesterol metabolism and acceleration of body fat degradation occur before parturition in cows with ketosis, and these characteristics are correlated with acceleration of protein degradation after parturition.
Collapse
Affiliation(s)
- Hirohisa Akamatsu
- Division of Dairy Cattle, Shizuoka Prefectural Livestock Experiment Station, Japan.
| | | | | | | | | | | |
Collapse
|
37
|
Nakashima K, Yakabe Y, Ishida A, Katsumata M. Effects of orally administered glycine on myofibrillar proteolysis and expression of proteolytic-related genes of skeletal muscle in chicks. Amino Acids 2007; 35:451-6. [PMID: 17624491 DOI: 10.1007/s00726-007-0573-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2007] [Accepted: 06/18/2007] [Indexed: 10/23/2022]
Abstract
We examined the effects of orally administered glycine on myofibrillar proteolysis in food-deprived chicks. Food-deprived (24 h) chicks were orally administered 57, 113, and 225 mg glycine/100 g body weight and killed after 2 h. The plasma N(tau)-methylhistidine concentration, used as myofibrillar proteolysis, was decreased by glycine. We also examined the expression of proteolytic-related genes by real-time PCR of cDNA from chick skeletal muscles. The mRNA expression of atrogin-1/MAFbx, proteasome C2 subunit, m-calpain large subunit, and cathepsin B was decreased by glycine in a dose-dependent manner. The plasma corticosterone concentration was also decreased by glycine, but the plasma insulin concentration was unaffected. These results indicate that orally administered glycine suppresses myofibrillar proteolysis and expression of proteolytic-related genes of skeletal muscle by decreasing the plasma corticosterone concentration in chicks.
Collapse
Affiliation(s)
- K Nakashima
- Molecular Nutrition Research Team, National Institute of Livestock and Grassland Science, Tsukuba, Japan.
| | | | | | | |
Collapse
|
38
|
Nakashima K, Yakabe Y, Ishida A, Yamazaki M, Abe H. Suppression of myofibrillar proteolysis in chick skeletal muscles by α-ketoisocaproate. Amino Acids 2006; 33:499-503. [PMID: 16998714 DOI: 10.1007/s00726-006-0404-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2006] [Accepted: 08/18/2006] [Indexed: 10/24/2022]
Abstract
We previously reported that L-leucine suppresses myofibrillar proteolysis in chick skeletal muscles. In the current study, we compared the effects of L- and D-enantiomers of leucine on myofibrillar proteolysis in skeletal muscle of chicks. We also assessed whether leucine itself or its metabolite, alpha-ketoisocaproate (alpha-KIC), mediates the effects of leucine. Food-deprived (24 h) chicks were orally administered 225 mg/100 g body weight L-leucine, D-leucine or alpha-KIC and were sacrificed after 2 h. L-Leucine administration had an obvious inhibitory effect on myofibrillar proteolysis (plasma N(tau)-methylhistidine concentration) in chicks while D-leucine and alpha-KIC were much more effective. We also examined the expression of the proteolytic-related genes (ubiquitin, proteasome, m-calpain and cathepsin B) by real-time PCR of cDNA in chick skeletal muscles. Ubiquitin mRNA expression was decreased by D-leucine and alpha-KIC but not L-leucine. Proteasome and m-calpain mRNA expressions as well as cathepsin B mRNA expression were likewise decreased by L-leucine, D-leucine and alpha-KIC. These results indicate that D-leucine and alpha-KIC suppress proteolytic-related genes, resulting in an decrease in myofibrillar proteolysis while L-leucine is much less effective in skeletal muscle of chicks, may be explain by conversion of D-leucine to alpha-KIC.
Collapse
Affiliation(s)
- K Nakashima
- Department of Animal Physiology and Nutrition, National Institute of Livestock and Grassland Science, Tsukuba, Japan.
| | | | | | | | | |
Collapse
|
39
|
KAMIYA M, KAMIYA Y, TANAKA M, OKI T, NISHIBA Y, SHIOYA S. Effects of high ambient temperature and restricted feed intake on urinary and plasma 3-methylhistidine in lactating Holstein cows. Anim Sci J 2006. [DOI: 10.1111/j.1740-0929.2006.00338.x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
40
|
Nakashima K, Ishida A, Yamazaki M, Abe H. Leucine suppresses myofibrillar proteolysis by down-regulating ubiquitin-proteasome pathway in chick skeletal muscles. Biochem Biophys Res Commun 2005; 336:660-6. [PMID: 16153608 DOI: 10.1016/j.bbrc.2005.08.138] [Citation(s) in RCA: 75] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2005] [Accepted: 08/17/2005] [Indexed: 11/27/2022]
Abstract
In skeletal muscle, amino acids, together with hormones, are key regulators of protein metabolism. Leucine, in particular, has inhibitory effects of protein degradation in skeletal muscles, but the mechanisms are poorly understood. The present study addressed the role of leucine as a regulator of myofibrillar proteolysis in cultured chick myotubes and chick skeletal muscles, and aimed to determine which cellular responses regulate the process. In chick myotubes, leucine suppressed myofibrillar proteolysis (as measured by N(tau)-methylhistidine release), while also decreasing ubiquitin and proteasome C2 subunit mRNA. Oral administration of leucine also suppressed myofibrillar proteolysis (as measured by plasma N(tau)-methylhistidine concentration), while also decreasing proteasome C2 subunit mRNA in chick skeletal muscle. Leucine activated the phosphatidylinositol 3-kinase (PI3K) and protein kinase C (PKC) (but not the mammalian target of rapamycin) inhibition of these pathways and increased myofibrillar proteolysis, ubiquitin and proteasome C2 subunit mRNA. Thus, an important component of muscle proteolysis inhibition by leucine, through the PI3K and PKC, is its ability to suppress transcription of the ubiquitin and proteasome C2 subunit, and degradation of myofibrillar protein.
Collapse
Affiliation(s)
- Kazuki Nakashima
- Department of Animal Physiology and Nutrition, National Institute of Livestock and Grassland Science, Tsukuba 305-0901, Japan.
| | | | | | | |
Collapse
|
41
|
Nagasawa T, Kido T, Yoshizawa F, Ito Y, Nishizawa N. Rapid suppression of protein degradation in skeletal muscle after oral feeding of leucine in rats. J Nutr Biochem 2002; 13:121-127. [PMID: 11834228 DOI: 10.1016/s0955-2863(01)00209-1] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
A diet containing adequate amounts of protein rapidly suppresses myofibrillar protein degradation in rats and mice. This study determined whether dietary amino acids inhibit postprandial protein degradation in rat skeletal muscle. When rats fed on a 20% casein diet for 1 h after 18 h starvation, the rate of myofibrillar protein degradation measured by N(tau)-methylhistidine release from the isolated extensor digitorum longus muscle was significantly (p < 0.05) decreased at 4 h after refeeding. A diet containing an amino acid mixture which is the same composition as casein also reduced myofibrillar protein degradation at 4 h after refeeding (p < 0.05). An essential amino acid mixture (15.1%, corresponding to casein composition) and a leucine (2.9%) diets reduced the rate of myofibrillar protein degradation after refeeding (p < 0.05), whereas a protein free diet did not. Administration of leucine alone (0.135 g/100 g body weight) by a feeding tube induced a decrease in the rate of myofibrillar protein degradation at 2 h after administration (p < 0.05), whereas the serum insulin concentration was constant after leucine administration. These results suggested that leucine is one of regulating factors of myofibrillar protein degradation after refeeding of a protein diet.
Collapse
Affiliation(s)
- Takashi Nagasawa
- Food and Health Science, Faculty of Agriculture, Iwate University, Morioka, Iwate, Japan
| | | | | | | | | |
Collapse
|
42
|
Anthony JC, Yoshizawa F, Anthony TG, Vary TC, Jefferson LS, Kimball SR. Leucine stimulates translation initiation in skeletal muscle of postabsorptive rats via a rapamycin-sensitive pathway. J Nutr 2000; 130:2413-9. [PMID: 11015466 DOI: 10.1093/jn/130.10.2413] [Citation(s) in RCA: 547] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The objectives of the present study were twofold: 1) to determine whether leucine is unique among the branched-chain amino acids (BCAA) in its ability to stimulate protein synthesis in skeletal muscle of food-deprived rats; and 2) to investigate whether changes in muscle protein synthesis after leucine administration involve a signaling pathway that includes the protein kinase mammalian target of rapamycin (mTOR). In the first set of experiments, food-deprived (18 h) male rats (200 g) were orally administered saline or 270 mg valine, isoleucine or leucine. In the second set of experiments, food-deprived rats were injected intravenously with rapamycin (0.75 mg/kg), a specific inhibitor of mTOR, before leucine administration. Only leucine stimulated protein synthesis in skeletal muscle above saline-treated controls (P: < 0.05). Furthermore, leucine was most effective among the BCAA at enhancing phosphorylation of eukaryotic initiation factor (eIF), 4E binding protein 1 (4E-BP1) and the 70-kDa ribosomal protein S6 kinase (S6K1). Leucine-dependent hyperphosphorylation of 4E-BP1 increased the availability of eIF4E to form the active eIF4G.eIF4E complex. To a lesser extent, isoleucine also enhanced phosphorylation of 4E-BP1 and S6K1. Rapamycin inhibited protein synthesis in both leucine-treated and food-deprived rats. Additionally, rapamycin prevented the stimulatory effects of leucine on eIF4E availability for binding eIF4G and inhibited leucine-dependent phosphorylation of S6K1. The data demonstrate that leucine is unique among the BCAA in its ability to stimulate protein synthesis in muscle of food-deprived rats. We show for the first time that leucine-dependent stimulation of translation initiation in vivo occurs via a rapamycin-sensitive pathway.
Collapse
Affiliation(s)
- J C Anthony
- Department of Cellular and Molecular Physiology, The Pennsylvania State University College of Medicine, Hershey, PA 17033, USA
| | | | | | | | | | | |
Collapse
|
43
|
Fetterer RH, Allen PC. Eimeria acervulina infection elevates plasma and muscle 3-methylhistidine levels in chickens. J Parasitol 2000; 86:783-91. [PMID: 10958457 DOI: 10.1645/0022-3395(2000)086[0783:eaiepa]2.0.co;2] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
To assess muscle breakdown during avian coccidiosis, the level of the nonmetabolizable amino acid 3-methylhistidine (3MH) was determined in muscle, plasma and excreta from chickens infected with Eimeria acervulina. The changes in 3MH levels during infection were assessed at 1-29 days postinoculation (DPI) in animals given 5 x 10(5) oocysts per bird. The effect of levels of parasitism were evaluated at 8 DPI in birds receiving 5 x 10(3), 5 x 10(4), 5 x 10(5) or 1 x 10(6) oocysts each. The 3MH levels of plasma, muscle, and excreta samples were determined by high-pressure liquid chromatography after derivatization with fluorescamine. Weight gains, breast muscle weight, eviscerated weight, plasma carotenoid levels, dry weight of muscle, and gross lesion scores were also determined. Infected birds had significantly elevated plasma and muscle 3MH at 4 and 8 DPI following a single dose of E. acervulina. The increase in 3MH levels had an inverse relationship with the time course of weight gain and plasma carotenoid levels. Plasma and muscle 3MH levels returned to control values by 15 DPI and remained unchanged from control values through the remainder of the experiment (29 DPI). Breast weight was decreased in infected birds, but the ratio of breast weight to eviscerated body weight was unchanged. Excretion of 3MH decreased relative to controls at 4 and 8 DPI and returned to control levels on 15 DPI. The plasma and muscle levels of 3MH were related to severity of infection; however, levels of excreted 3MH were not. The results suggested that muscle breakdown, as assessed by plasma and muscle levels of 3MH, increased during the acute stage of E. acervulina infection. The underlying causes for this muscle breakdown was unclear but could involve a physiological response to anorexia and decreased food intake during the acute phase of infection. Levels of excreted 3MH did not increase during infection and this may be the result of decreased excreta output during infection. Plasma and muscle levels of 3MH were correlated with severity of E. acervulina infections but may not be as sensitive an indicator of infection as plasma carotenoid levels or other physiological parameters.
Collapse
Affiliation(s)
- R H Fetterer
- Parasite Biology and Epidemiology Laboratory, Livestock and Poultry Sciences Institute, United States Department of Agriculture, Beltsville Agricultural Research Center, Maryland 20750, USA
| | | |
Collapse
|
44
|
Nagasawa T, Hirano J, Yoshizawa F, Nishizawa N. Myofibrillar protein catabolism is rapidly suppressed following protein feeding. Biosci Biotechnol Biochem 1998; 62:1932-7. [PMID: 9836429 DOI: 10.1271/bbb.62.1932] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
The immediate response of protein degradation to food intake and the factors for its regulation in rat skeletal muscle were examined. The concentration of N tau-methylhistidine (MeHis) in serum and the rates of MeHis release from isolated soleus and extensor digitorum longus muscles were reduced in the period from 3 to 6 h after refeeding, indicating that the rate of myofibrillar protein degradation in the rat decreased immediately after refeeding. Changes in the serum concentration of insulin and corticosterone were not synchronized with those in the myofibrillar protein degradation. When rats were fed on a protein-free diet, no reduction of serum MeHis concentration or of the rate of MeHis release from isolated muscles after refeeding was apparent. Furthermore, there was a tendency toward suppressing myofibrillar protein degradation with a higher protein content of the diet. These results suggest that the suppression of myofibrillar protein degradation by food intake was regulated by dietary proteins.
Collapse
Affiliation(s)
- T Nagasawa
- Department of Bioscience and Technology, Faculty of Agriculture, Iwate University, Japan.
| | | | | | | |
Collapse
|
45
|
Ohtsuka A, Tanaka H, Hizaki K, Hayashi K. Chick skeletal muscle proteolysis in vitro increased by corticosterone. Biosci Biotechnol Biochem 1998; 62:1781-3. [PMID: 9805381 DOI: 10.1271/bbb.62.1781] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Six-day-old chick skeletal muscle (extensor digitorum longus) was incubated in the presence of corticosterone (CTC; 0, 3, 30, and 300 ng/ml) for 2 h at 37 degrees C. Tyrosine and N (tau)-methylhistidine releases, as indices of total muscle and myofibrillar proteolysis, were increased by CTC but with different dose responses, indicating an independent regulation of myofibrillar and non-myofibrillar protein degradation.
Collapse
Affiliation(s)
- A Ohtsuka
- Faculty of Agriculture, Department of Biochemical Science and Technology, Kagoshima University, Japan.
| | | | | | | |
Collapse
|
46
|
Yoshizawa F, Nagasawa T, Nishizawa N, Funabiki R. Protein synthesis and degradation change rapidly in response to food intake in muscle of food-deprived mice. J Nutr 1997; 127:1156-9. [PMID: 9187630 DOI: 10.1093/jn/127.6.1156] [Citation(s) in RCA: 44] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
The short-term changes in muscle protein synthesis and degradation after food intake are unclear. We investigated muscle protein metabolism after food intake in mice that were starved for 18 h and refed for 1 h. Protein synthesis activity was estimated by the polysome profiles, and protein degradation was estimated by plasma N tau-methylhistidine (MeHis) concentration, reflecting translational activity and myofibrillar protein degradation, respectively. MeHis is an index of myofibrillar protein degradation because it is not reused for protein synthesis and it is not metabolized. Stimulation of protein synthesis (polysome profile) and the reduction of protein degradation (plasma N tau-methylhistidine concentration) were observed immediately after feeding began. Protein synthesis returned to the prefeeding level by 6 h after refeeding, whereas protein degradation remained at a low level. The decreased plasma MeHis concentration after refeeding was not due to a decrease in MeHis release from muscle cells and an increase in the free MeHis pool size, because the changes in free MeHis concentration in muscle were similar to that of plasma. Plasma insulin concentration immediately rose with feeding and it returned to the prefeeding level by 3 h after refeeding. These results suggest that responses of postprandial protein metabolism are very rapid and that protein synthesis is regulated by insulin, whereas degradation is regulated by insulin and other dietary factors. Thus the ability of skeletal muscle to use nutrients more effectively by stimulating protein synthesis and reducing protein degradation may cause the accelerated rate of protein accretion in skeletal muscle during the short postprandial period.
Collapse
Affiliation(s)
- F Yoshizawa
- Department of Applied Biological Science, Tokyo Noko University, Japan
| | | | | | | |
Collapse
|
47
|
Nagasawa T, Hatayama T, Watanabe Y, Tanaka M, Niisato Y, Kitts DD. Free radical-mediated effects on skeletal muscle protein in rats treated with Fe-nitrilotriacetate. Biochem Biophys Res Commun 1997; 231:37-41. [PMID: 9070215 DOI: 10.1006/bbrc.1996.6034] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Changes in protein conformation and proteolysis in skeletal muscle of rats were studied by the induction of oxidative stress induced in vivo by ferric nitrilotriacetate (FeNTA) treatment. Useful indices of protein modification, including both protein carbonyl content and fluorescence intensity of protein hydrolysate in skeletal muscle, were increased 3 h following FeNTA treatment to rats. Western blot using anti-dinitrophenyl antibody showed oxidative modification of actin and myosin in myofibril by FeNTA. These results demonstrated that muscle proteins were modified after radical attack induced by an iron overload. Furthermore, oxidative stress induced by iron overloading resulted in enhanced degradation of myofibrillar proteins. It is suggested that muscle proteins which have been modified by oxidative stress undergo rapid removal.
Collapse
Affiliation(s)
- T Nagasawa
- Department of Bioscience and Technology, Faculty of Agriculture, Iwate University, Japan.
| | | | | | | | | | | |
Collapse
|