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Kumar BV, Kadiyala P, Ponmalar P, Pauline L, Srinivasan S. Establishment of Age Specific Reference Interval for Aminoacids and Acylcarnitine in Dried Blood Spot by Tandem Mass Spectrometry. Indian J Clin Biochem 2024; 39:233-240. [PMID: 38577134 PMCID: PMC10987407 DOI: 10.1007/s12291-023-01128-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Accepted: 02/25/2023] [Indexed: 03/12/2023]
Abstract
The Extended Screening for Inborn Errors of Metabolism is done for aminoacidopathies, fatty acid oxidation disorders and organic acid disorders. In a single dried blood spot, the tandem mass spectrometry is capable of measuring multiple analytes like amino acids, acylcarnitines, nucleosides, succinylacetone and lysophosphatidylcholines. This study was proposed to establish age specific reference internal for aminoacids and acylcartinitine in dried blood spot by tandem mass spectrometry. A total of 480 apparently healthy children were enrolled for the study and sub classified into four groups as follows: Group A: 0-1 month, Group B: 1 month-1 year, Group C: 1-5 year and Group D: 5-12 years each having 120 participants. Sample size were calculated as per CLSI approved guidelines. Tables 1 and 2 presents the age-specific percentile distribution of aminoacids and acylcarnitines established from healthy subjects as per rank-based method recommended by the IFCC and CLSI. Tables 3, 4 and 5 presents the cut-off values of primary and secondary marker/ratios for screening of aminoacidopathies, fatty acid oxidation disorders and organic acid disorders respectively. As a general principle, the interpretation of extended newborn screening results should be based on age specific cut-off established by the laboratory for primary analyte concentration and secondary analyte concentration/ ratios. This study was useful in establishing age specific cut-off values for various amino acids and acylcarnitines in South Indian population. [Table: see text] [Table: see text] [Table: see text] [Table: see text] [Table: see text].
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Affiliation(s)
- B. Vinodh Kumar
- Department of Biochemistry, ICH & HC, Madras Medical College, Chennai, Tamil Nadu India
| | - Pramila Kadiyala
- Department of Biochemistry, ICH & HC, Madras Medical College, Chennai, Tamil Nadu India
| | - P. Ponmalar
- Department of Biochemistry, ICH & HC, Madras Medical College, Chennai, Tamil Nadu India
| | - Leema Pauline
- Department of Neurology, ICH & HC, Madras Medical College, Chennai, India
| | - S. Srinivasan
- Department of Biochemistry, ICH & HC, Madras Medical College, Chennai, Tamil Nadu India
- NHM, ICH & HC, Madras Medical College, Chennai, India
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Suyetin M, Rauwolf S, Schwaminger SP, Turrina C, Wittmann L, Bag S, Berensmeier S, Wenzel W. Peptide adsorption on silica surfaces: Simulation and experimental insights. Colloids Surf B Biointerfaces 2022; 218:112759. [PMID: 36027680 DOI: 10.1016/j.colsurfb.2022.112759] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Revised: 08/02/2022] [Accepted: 08/04/2022] [Indexed: 11/16/2022]
Abstract
The understanding of interactions between proteins with silica surface is crucial for a wide range of different applications: from medical devices, drug delivery and bioelectronics to biotechnology and downstream processing. We show the application of EISM (Effective Implicit Surface Model) for discovering the set of peptide interactions with silica surface. The EISM is employed for a high-speed computational screening of peptides to model the binding affinity of small peptides to silica surfaces. The simulations are complemented with experimental data of peptides with silica nanoparticles from microscale thermophoresis and from infrared spectroscopy. The experimental work shows excellent agreement with computational results and verifies the EISM model for the prediction of peptide-surface interactions. 57 peptides, with amino acids favorable for adsorption on Silica surface, are screened by EISM model for obtaining results, which are worth to be considered as a guidance for future experimental and theoretical works. This model can be used as a broad platform for multiple challenges at surfaces which can be applied for multiple surfaces and biomolecules beyond silica and peptides.
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Affiliation(s)
- Mikhail Suyetin
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Stefan Rauwolf
- Bioseparation Engineering Group, School of Engineering and Design, Technical University of Munich, 85748, Garching, Germany
| | - Sebastian Patrick Schwaminger
- Bioseparation Engineering Group, School of Engineering and Design, Technical University of Munich, 85748, Garching, Germany; Division of Medicinal Chemistry, Otto Loewi Research Center, Medical University of Graz, 8010, Graz, Austria.
| | - Chiara Turrina
- Bioseparation Engineering Group, School of Engineering and Design, Technical University of Munich, 85748, Garching, Germany
| | - Leonie Wittmann
- Bioseparation Engineering Group, School of Engineering and Design, Technical University of Munich, 85748, Garching, Germany
| | - Saientan Bag
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany
| | - Sonja Berensmeier
- Bioseparation Engineering Group, School of Engineering and Design, Technical University of Munich, 85748, Garching, Germany.
| | - Wolfgang Wenzel
- Institute of Nanotechnology, Karlsruhe Institute of Technology, Hermann-von-Helmholtz-Platz 1, 76344, Eggenstein-Leopoldshafen, Germany.
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Bruno C, Veyrat-Durebex C, Lumbu Lukuntonda CH, Andres CR, Moreau C, Bendavid C, Homedan C, Labarthe F, Tardieu M, Bigot A, Maillot F, Benz-de Bretagne I, Blasco H. Validation of plasma amino acid profile using UHPLC-mass spectrometer (QDa) as a screening method in a metabolic disorders reference centre: Performance and accreditation concerns. Clin Biochem 2021; 92:34-45. [PMID: 33736999 DOI: 10.1016/j.clinbiochem.2021.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 02/23/2021] [Accepted: 03/06/2021] [Indexed: 01/17/2023]
Abstract
INTRODUCTION Amino acid (AA) analysis in plasma is essential for diagnosis and monitoring of inborn errors of metabolism (IEM). The efficacy of patient management is governed by the rapidity of AA profile availability, along with the robustness of the method. French quality guidelines and progress made in analytical techniques have led biologists to develop AA profile exploration via mass spectrometry (MS). OBJECTIVES The aim of this study was to validate an analytical method with a single quadrupole mass spectrometer (MS) and to suggest reference values in regard to French quality and IEM society recommendations. DESIGN AND METHODS Plasma samples from patients were deproteinised and derivatised with AccqTag™ reagent. Analysis was performed by reverse-phase chromatography coupled to QDA detector. We evaluated accuracy, intra-days and inter-days precision and limit of quantification by the β-expectation tolerance interval method for 27 AA. Method comparison was performed with the standard method (ion exchange chromatography, IEC) on Jeol Aminotac® and to tandem MS. Reference values were established on AA concentrations of the cohort of patients who had no IEM. RESULTS Our method allowed the separations of almost all amino acids with a total run time of 12 min. Separation of isoleucine and alloisoleucine was incomplete (R = 0.55) but without impact on biological interpretation. Precision, accuracy and quantification were satisfactory (intra-days coefficient of variation (CV) was <5%, inter-days precision CV <10% and accuracy <15%). The limits of quantification were validated between 1 and 900 µmol/L. Results were comparable between the new method and IEC. CONCLUSION Ultimately, we validated a rapid method on plasma for quantifying 27 amino acids that can be used in routine practice, according to French quality laboratories and SFEIM (French Society of Inborn Error of Metabolism) recommendations. Furthermore, estimated reference values were similar to those found in published studies focusing on other methods. Despite a lower specificity compared to tandem MS, the simplicity and rapidity of our method are the main advantage of this technique and place it as a major tool in IEM diagnosis and management.
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Affiliation(s)
- C Bruno
- Laboratoire de Biochimie et Biologie Moléculaire, CHRU de Tours, Tours, France; Unité INSERM U1253, équipe "neurogénomique et physiopathologie neuronale", Université de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France.
| | - C Veyrat-Durebex
- Laboratoire de Biochimie et Biologie Moléculaire, CHRU de Tours, Tours, France; Unité INSERM U1253, équipe "neurogénomique et physiopathologie neuronale", Université de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - C H Lumbu Lukuntonda
- Laboratoire de Biochimie et Biologie Moléculaire, CHRU de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - C R Andres
- Laboratoire de Biochimie et Biologie Moléculaire, CHRU de Tours, Tours, France; Unité INSERM U1253, équipe "neurogénomique et physiopathologie neuronale", Université de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - C Moreau
- Laboratoire de biochimie-toxicologie, Hôpital Pontchaillou CHU Rennes, France; Université de Rennes, Inserm, Inra, Institut NuMeCan, CHU Rennes, France
| | - C Bendavid
- Laboratoire de biochimie-toxicologie, Hôpital Pontchaillou CHU Rennes, France
| | - C Homedan
- Laboratoire de biochimie et génétique, Centre hospitalier universitaire, Angers, France
| | - F Labarthe
- Service de Médecine pédiatrique, CHRU de Tours, Tours, France; UMR INSERM U 1069 - Nutrition, Croissance et Cancer (N2C), Université de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - M Tardieu
- Service de Médecine pédiatrique, CHRU de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - A Bigot
- Service de Médecine Interne, CHRU de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - F Maillot
- Unité INSERM U1253, équipe "neurogénomique et physiopathologie neuronale", Université de Tours, Tours, France; Service de Médecine Interne, CHRU de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - I Benz-de Bretagne
- Laboratoire de Biochimie et Biologie Moléculaire, CHRU de Tours, Tours, France; Unité INSERM U1253, équipe "neurogénomique et physiopathologie neuronale", Université de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
| | - H Blasco
- Laboratoire de Biochimie et Biologie Moléculaire, CHRU de Tours, Tours, France; Unité INSERM U1253, équipe "neurogénomique et physiopathologie neuronale", Université de Tours, Tours, France; Centre de référence des maladies héréditaires de métabolisme - filière G2M, France
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Danaraj J, Ayyappan S, Mariasingarayan Y, Packiyavathy IASV, Sweetly Dharmadhas J. Chlorophyll fluorescence, dark respiration and metabolomic analysis of Halodule pinifolia reveal potential heat responsive metabolites and biochemical pathways under ocean warming. Mar Environ Res 2021; 164:105248. [PMID: 33412477 DOI: 10.1016/j.marenvres.2020.105248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 12/12/2020] [Accepted: 12/26/2020] [Indexed: 06/12/2023]
Abstract
Seagrasses are submerged marine angiosperms often prone to various biotic and abiotic stress factors in the marine environment. Our study investigated the response, adaptation and underlying tolerance mechanism of tropical seagrass Halodule pinifolia upon temperature stress (24°, 29°, 37°, and 45 °C) and evaluated the effect of temperature stress on net photosynthesis (ΔF/F'm) and dark respiration (Fv/Fm). In this study, metabolomic analysis of seagrass H. pinifolia upon heat stress has been performed using GC-MS based omics approach. As a result, the net photosynthetic efficiency (ΔF/F'm) was found significantly decreased upon heat stress, while the dark respiration rate was increased to 2.903 mg O2/g FW h-1 and 3.87 mg O2/g FW h-1 as compared to the control (24 °C), respectively. Metabolomic analysis showed heat stress could cause large metabolite variations with respect to sugar, amino acids and organic acids. Interestingly, three thermo-protective metabolites such as trehalose (sugar), glycine betaine (amino acid) and methyl vinyl ketone (organic acid) were profiled from H. pinifolia (45 °C) and is the first report on the occurrence of glycine betaine and methyl vinyl ketone from seagrasses and other aquatic species so far. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis demonstrated H. pinifolia exposed to heat stress lead to intense biochemical changes and caused significant variations in the heat responsive metabolic pathways. The present findings would facilitate the further research on identifying gene to metabolite networks for an effective management of seagrass conservation by genetic manipulation.
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Affiliation(s)
- Jeyapragash Danaraj
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608502, Tamilnadu, India; Department of Biotechnology, Karpagam Academy of Higher Education, (Deemed to be University), Echanari, 641021, Coimbatore, India.
| | - Saravanakumar Ayyappan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608502, Tamilnadu, India
| | - Yosuva Mariasingarayan
- Centre of Advanced Study in Marine Biology, Faculty of Marine Sciences, Annamalai University, Parangipettai, 608502, Tamilnadu, India
| | | | - Jeba Sweetly Dharmadhas
- Department of Biotechnology, Karpagam Academy of Higher Education, (Deemed to be University), Echanari, 641021, Coimbatore, India
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Zyubin A, Rafalskiy V, Tcibulnikova A, Matveeva K, Moiseeva E, Tsapkova A, Samusev I, Bryukhanov V, Demin M. Dataset of human platelets in healthy and individuals with cardiovascular pathology obtained by surface-enhanced Raman spectroscopy. Data Brief 2020; 29:105145. [PMID: 32016148 DOI: 10.1016/j.dib.2020.105145] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2019] [Revised: 12/12/2019] [Accepted: 01/10/2020] [Indexed: 11/22/2022] Open
Abstract
This data article contains Raman experimental data, obtained with Centaur U Raman spectrometer (Russia), which can be used for rapid and early structure changes and biomarkers identification in individuals with cardiovascular decease (CVD) pathology in vitro. The data include analyzed Surface-Enhanced Raman Scattering (SERS) spectra of human platelets taken from healthy individuals and individuals with cardiovascular pathology. Data can provide information about characteristic maxima of different cell components and its changes in platelets.
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Katsikis S, Marin-Montesinos I, Ludwig C, Günther UL. Detecting acetylated aminoacids in blood serum using hyperpolarized 13C- 1Η-2D-NMR. J Magn Reson 2019; 305:175-179. [PMID: 31301460 DOI: 10.1016/j.jmr.2019.07.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Revised: 07/04/2019] [Accepted: 07/04/2019] [Indexed: 06/10/2023]
Abstract
Dynamic Nuclear Polarization (DNP) can substantially enhance the sensitivity of NMR experiments. Among the implementations of DNP, ex-situ dissolution DNP (dDNP) achieves high signal enhancement levels owing to a combination of a large temperature factor between 1.4 and 300 K with the actual DNP effect in the solid state at 1.4 K. For sufficiently long T1 relaxation times much of the polarization can be preserved during dissolution with hot solvent, thus enabling fast experiments during the life time of the polarization. Unfortunately, for many metabolites found in biological samples such as blood, relaxation times are too short to achieve a significant enhancement. We have therefore introduced 13C-carbonyl labeled acetyl groups as probes into amino acid metabolites using a simple reaction protocol. The advantage of such tags is a sufficiently long T1 relaxation time, the possibility to enhance signal intensity by introducing 13C, and the possibility to identify tagged metabolites in NMR spectra. We demonstrate feasibility for mixtures of amino acids and for blood serum. In two-dimensional dDNP-enhanced HMQC experiments of these samples acquired in 8 s we can identify acetylated amino acids and other metabolites based on small differences in chemical shifts.
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Affiliation(s)
- Sotirios Katsikis
- Department of Pharmacognosy and Natural Products Chemistry, School of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | | | - Christian Ludwig
- Institute of Metabolism and Systems Research, University of Birmingham, Birmingham, UK
| | - Ulrich L Günther
- HWB-NMR, University of Birmingham, Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham, UK.
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Siomkajło M, Rybka J, Mierzchała-Pasierb M, Gamian A, Stankiewicz-Olczyk J, Bolanowski M, Daroszewski J. Specific plasma amino acid disturbances associated with metabolic syndrome. Endocrine 2017; 58:553-562. [PMID: 29075976 PMCID: PMC5693976 DOI: 10.1007/s12020-017-1460-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 10/17/2017] [Indexed: 12/14/2022]
Abstract
PURPOSE The primary objective of the present study was to examine the association between branched chain and aromatic amino acid profiles (BCAA and AAA respectively) and the metabolic syndrome (MS), and to evaluate the clinical utility of these associations in the diagnostic process. METHODS Two hundred and sixty three healthy men with MS [MS(+): n = 165] and without MS [MS(-): n = 98] were enrolled in the observational study. Anthropometrical, biochemical, and amino acid measurements were performed. The ability of the BCAA and AAA to discriminate subjects with MS and insulin resistance was tested. Based on logistic discrimination, a multivariate early MS diagnostic model was built, and its discrimination properties were evaluated. RESULTS Two functionally independent amino acid clusters were identified. BCAA and phenylalanine differed significantly between MS(+) and MS(-) participants (P = 0.003). These factors were also found to be indicators of MS(+) individuals (AUC: 0.66; 95% CI: 0.5757-0.7469), and correlated with cardiometabolic factors. No statistically significant differences in amino acid concentrations between those with and without insulin resistance were noted, and none of the amino groups were indicators of insulin resistance. The proposed MS multivariate diagnostic model consisted of phenylalanine, insulin, leptin, and adiponectin, and had good discrimination properties [AUC 0.79; 95% CI: 0.7239-0.8646]. CONCLUSIONS MS is associated with selective BCAA and AAA profile disturbances, which could be part of cardiometabolic disease pathogenesis and derive neither directly from insulin sensitivity impairment, nor obesity or muscle mass. The MS diagnostic model developed and described herein should be validated in future studies.
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Affiliation(s)
- Marta Siomkajło
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, L. Pasteur 4, Wroclaw, 50-367, Poland
| | - Jacek Rybka
- Laboratory of Medical Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigl 12, Wroclaw, 53-114, Poland
| | | | - Andrzej Gamian
- Laboratory of Medical Microbiology, Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences, R. Weigl 12, Wroclaw, 53-114, Poland
- Department of Medical Biochemistry, Wroclaw Medical University, Chalubinskiego 10, Wroclaw, 50-368, Poland
| | - Joanna Stankiewicz-Olczyk
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, L. Pasteur 4, Wroclaw, 50-367, Poland
| | - Marek Bolanowski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, L. Pasteur 4, Wroclaw, 50-367, Poland
| | - Jacek Daroszewski
- Department of Endocrinology, Diabetes and Isotope Therapy, Wroclaw Medical University, L. Pasteur 4, Wroclaw, 50-367, Poland.
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Foito A, Hackett CA, Stewart D, Velmurugan J, Milbourne D, Byrne SL, Barth S. Quantitative trait loci associated with different polar metabolites in perennial ryegrass - providing scope for breeding towards increasing certain polar metabolites. BMC Genet 2017; 18:84. [PMID: 29017444 PMCID: PMC5634963 DOI: 10.1186/s12863-017-0552-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2017] [Accepted: 09/21/2017] [Indexed: 01/09/2023] Open
Abstract
Background Recent advances in the mapping of biochemical traits have been reported in Lolium perenne. Although the mapped traits, including individual sugars and fatty acids, contribute greatly towards ruminant productivity, organic acids and amino acids have been largely understudied despite their influence on the ruminal microbiome. Results In this study, we used a targeted gas-chromatography mass spectrometry (GC-MS) approach to profile the levels of 25 polar metabolites from different classes (sugars, amino acids, phenolic acids, organic acids and other nitrogen-containing compounds) present in a L. perenne F2 population consisting of 325 individuals. A quantitative trait (QTL) mapping approach was applied and successfully identified QTLs regulating seven of those polar metabolites (L-serine, L-leucine, glucose, fructose, myo-inositol, citric acid and 2, 3-hydroxypropanoic acid).Two QTL mapping approaches were carried out using SNP markers on about half of the population only and an imputation approach using SNP and DArT markers on the entire population. The imputation approach confirmed the four QTLs found in the SNP-only analysis and identified a further seven QTLs. Conclusions These results highlight the potential of utilising molecular assisted breeding in perennial ryegrass to modulate a range of biochemical quality traits with downstream effects in livestock productivity and ruminal digestion. Electronic supplementary material The online version of this article (10.1186/s12863-017-0552-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Alexandre Foito
- Teagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland.,Enhancing Crop Productivity and Utilisation, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK
| | | | - Derek Stewart
- Enhancing Crop Productivity and Utilisation, The James Hutton Institute, Invergowrie, Dundee, DD2 5DA, UK.,Engineering and Physical Sciences, Heriot-Watt University, Edinburgh, EH14 4AS, UK.,Norwegian Institute of Bioeconomy Research, Pb 115, -1431, Ås, NO, Norway
| | - Janaki Velmurugan
- Teagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland
| | - Dan Milbourne
- Teagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland
| | - Stephen L Byrne
- Teagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland
| | - Susanne Barth
- Teagasc, Crops Environment and Land Use Programme, Oak Park Research Centre, Carlow, Ireland.
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Sytar O, Brestic M, Zivcak M, Tran LSP. The Contribution of Buckwheat Genetic Resources to Health and Dietary Diversity. Curr Genomics 2016; 17:193-206. [PMID: 27252586 PMCID: PMC4869006 DOI: 10.2174/1389202917666160202215425] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 04/30/2015] [Accepted: 05/05/2015] [Indexed: 02/07/2023] Open
Abstract
Despite several reports on the beneficial effects of buckwheat in prevention of human diseases, little attention has been devoted to the variability of biochemical and physiological traits in different buckwheat genetic resources. This review describes the biochemical evaluation of buckwheat genetic resources and the identification of elite genotypes for plant breeding and exploitation. The various types of bioactive compounds present in different varieties provide basic background information needed for the efficient production of buckwheat foods with added value. In this review, we will provide an integrated view of the biochemistry of bioactive compounds of buckwheat plants of different origin, especially of fagopyrin, proteins and amino acids, as well as of other phenolic compounds including rutin and chlorogenic acid. In addition to the genetic background, the effect of different growth conditions is discussed. The health effects of fagopyrin, phenolic acids, specific proteins and rutin are also presented.
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Affiliation(s)
- Oksana Sytar
- Plant Physiology and Ecology Department, Taras Shevchenko National University of Kyiv, Institute of Biology, Volodymyrskya str., 64, Kyiv 01033, Ukraine; Department of Plant Physiology, Slovak University of Agriculture, Nitra, A. Hlinku 2, 94976 Nitra, Slovak Republic
| | - Marian Brestic
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, A. Hlinku 2, 94976 Nitra, Slovak Republic
| | - Marek Zivcak
- Department of Plant Physiology, Slovak University of Agriculture, Nitra, A. Hlinku 2, 94976 Nitra, Slovak Republic
| | - Lam-Son Phan Tran
- Plant Abiotic Stress Research Group & Faculty of Applied Sciences, Ton Duc Thang University, Ho Chi Minh City, Vietnam; Signaling Pathway Research Unit, RIKEN Center for Sustainable Resource Science Tsurumi, Japan
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Cirri M, Maestrelli F, Mennini N, Mura P. Combined use of bile acids and aminoacids to improve permeation properties of acyclovir. Int J Pharm 2015; 490:351-9. [PMID: 26037934 DOI: 10.1016/j.ijpharm.2015.05.052] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2015] [Revised: 05/19/2015] [Accepted: 05/20/2015] [Indexed: 11/16/2022]
Abstract
The aim of this work was to develop a topical formulation with improved permeation properties of acyclovir. Ursodeoxycholic (UDC) and dehydrocholic (DHC) acids were tested as potential enhancers, alone or in combination with different aminoacids. Equimolar binary and ternary systems of acyclovir with cholic acids and basic, hydrophilic or hydrophobic aminoacids were prepared by co-grinding in a high vibrational micromill. Differential scanning calorimetry (DSC) was used to characterize the solid state of these systems, while their permeation properties were evaluated in vitro through a lipophilic artificial membrane. UDC was more than 2 times more effective than DHC in improving drug AUC and permeation rate. As for the ternary systems drug-UDC-aminoacid, only the combined use of l-lysine with UDC acid produced an evident synergistic effect in enhancing drug permeation properties, enabling an almost 3 and 8 times AUC increase compared to the binary UDC system or the pure drug, respectively. The best systems were selected for the development of topical cream formulations, adequately characterized and tested for in vitro drug permeation properties and stability on storage. The better performance revealed by acyclovir-UDC-l-lysine was mainly attributed to the formation of a more permeable activated system induced by the multicomponent co-grinding process.
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Affiliation(s)
- M Cirri
- Dept. of Chemistry, School of Sciences of Human Health, University of Florence, via U. Schiff, 6 Sesto Fiorentino 50019 Florence, Italy.
| | - F Maestrelli
- Dept. of Chemistry, School of Sciences of Human Health, University of Florence, via U. Schiff, 6 Sesto Fiorentino 50019 Florence, Italy
| | - N Mennini
- Dept. of Chemistry, School of Sciences of Human Health, University of Florence, via U. Schiff, 6 Sesto Fiorentino 50019 Florence, Italy
| | - P Mura
- Dept. of Chemistry, School of Sciences of Human Health, University of Florence, via U. Schiff, 6 Sesto Fiorentino 50019 Florence, Italy
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Sajimol Augustine M, Anas A, Das AV, Sreekanth S, Jayalekshmi S. Cytotoxicity and cellular uptake of ZnS:Mn nanocrystals biofunctionalized with chitosan and aminoacids. Spectrochim Acta A Mol Biomol Spectrosc 2015; 136 Pt B:327-33. [PMID: 25448936 DOI: 10.1016/j.saa.2014.08.147] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2014] [Revised: 08/10/2014] [Accepted: 08/31/2014] [Indexed: 05/20/2023]
Abstract
Highly luminescent, manganese doped, zinc sulphide (ZnS:Mn) nanocrystals biofunctionalized with chitosan and various aminoacids such as L-citrulline, L-lysine, L-arginine, L-serine, L-histidine and glycine were synthesized by chemical capping co-precipitation method at room temperature, which is a simple and cost effective technique. The synthesized nanocrystals were structurally characterized by TEM, XRD, EDXS and FT-IR spectroscopy techniques. They possess high colloidal stability with strong orange red photoluminescence emission at 598 nm. The intensity of orange red emission has been observed to be maximum in L-citrulline capped ZnS:Mn nanocrystals in which the emission at 420 nm is effectively quenched by surface passivation due to capping. Taking into consideration the prospects of these highly luminescent, bio-compatible ZnS:Mn nanocrystals in bio-imaging applications, cytotoxicity studies were conducted to identify the capping combination which would accomplish minimum toxic effects. ZnS:Mn nanocrystals biofunctionalized with chitosan, L-citrulline, glycine, L-artginine, L-serine and L-histidine showed least toxicity up to 10 nM concentrations in mouse fibroblast L929 cells, which further confirms their cytocompatibility. Also the ZnS:Mn nanocrystals biofunctionalized with l-arginine showed maximum uptake in in vitro studies carried out in human embryonic kidney cells, HEK-293T, which shows the significant role of this particular amino acid in fetoplacental nutrition. The present study highlights the suitability of aminoacid conjugated ZnS:Mn nanocrystals, as promising candidates for biomedical applications.
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Affiliation(s)
| | - Abdulaziz Anas
- Council of Scientific and Industrial Research, National Institute of Oceanography, Regional Centre, Cochin 682 018, India
| | - Ani V Das
- Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - S Sreekanth
- Rajiv Gandhi Centre for Biotechnology, Thiruvananthapuram, India
| | - S Jayalekshmi
- Department of Physics, Cochin University of Science and Technology, Kochi 682 022, Kerala, India.
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Vilanova M, Rodríguez I, Canosa P, Otero I, Gamero E, Moreno D, Talaverano I, Valdés E. Variability in chemical composition of Vitis vinifera cv Mencía from different geographic areas and vintages in Ribeira Sacra (NW Spain). Food Chem 2014; 169:187-96. [PMID: 25236215 DOI: 10.1016/j.foodchem.2014.08.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 07/25/2014] [Accepted: 08/05/2014] [Indexed: 11/30/2022]
Abstract
A chemical study was conducted from 2009 to 2012 to examine spatial and seasonal variability of red Vitis vinifera Mencía located in different geographic areas (Amandi, Chantada, Quiroga-Bibei, Ribeiras do Sil and Ribeiras do Miño) from NW Spain. Mencía samples were analysed for phenolic, (flavan-3-ols, flavonols, anthocyanins, acids and resveratrol), nitrogen (TAC, TAN, YAN and TAS) and volatiles compounds (alcohols, C6 compounds, ethyl esters, terpenes, aldehydes, acids, lactones, volatile phenols and carbonyl compounds) by GC-MS and HPLC. Results showed that the composition of Mencía cultivar was more affected by the vintage than the geographic area. The amino acid composition was less affected by both geographic origin and vintage, showing more varietal stability. Application of Principal Component Analysis (PCA) to experimental data showed a good separation of Mencía grape according to geographical origin and vintages. PCA also showed high correlations between the ripening ratio and C6 compounds, resveratrol and carbonyl compounds.
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Affiliation(s)
- M Vilanova
- Misión Biológica de Galicia (CSIC), PO Box 28, 38080 Pontevedra, Spain.
| | - I Rodríguez
- Misión Biológica de Galicia (CSIC), PO Box 28, 38080 Pontevedra, Spain
| | - P Canosa
- Misión Biológica de Galicia (CSIC), PO Box 28, 38080 Pontevedra, Spain
| | - I Otero
- Misión Biológica de Galicia (CSIC), PO Box 28, 38080 Pontevedra, Spain
| | - E Gamero
- CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Government of Extremadura), Av. Adolfo Suárez s/n, 06071 Badajoz, Spain
| | - D Moreno
- CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Government of Extremadura), Av. Adolfo Suárez s/n, 06071 Badajoz, Spain
| | - I Talaverano
- CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Government of Extremadura), Av. Adolfo Suárez s/n, 06071 Badajoz, Spain
| | - E Valdés
- CICYTEX-Technological Institute of Food and Agriculture-INTAEX (Government of Extremadura), Av. Adolfo Suárez s/n, 06071 Badajoz, Spain.
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Silvério F, Dos Reis MJ, Tronto J, Valim JB. Sorption of aspartic and glutamic aminoacids on calcined hydrotalcite. Springerplus 2013; 2:211. [PMID: 23710430 PMCID: PMC3661045 DOI: 10.1186/2193-1801-2-211] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/18/2012] [Accepted: 05/04/2013] [Indexed: 12/03/2022]
Abstract
Sorption of aspartic and glutamic aminoacids by regeneration of calcined hydrotalcite is reported. Hydrotalcite was synthesized by coprecipitation and calcined at 773 K. Sorption experiments were performed at 298 K and 310 K, and the results reveal that at low aminoacids equilibrium concentrations, intercalation of hydroxyl anions takes place while at high equilibrium concentrations, the sorption process occur by means re-hydration and aminoacids intercalation of hydrotalcite. The results also suggested that Asp and Glu sorption is a temperature dependent process. The amount of sorbed amino acid decreases as the temperature increase. The effect is more pronounced for Glu sorption probably due to its higher hydrophobic character, which makes the sorption more difficult in comparison with sorption of Asp at higher temperature.
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Affiliation(s)
- Fabiano Silvério
- Departamento de Química - Faculdade de Filosofia Ciências e Letras de Ribeirão Preto, Universidade de São Paulo, Av. Bandeirantes, 3900, CEP 14040-901 Ribeirão Preto, Brazil
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