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Badgujar D, Paritala ST, Matre S, Sharma N. Enantiomeric purity of synthetic therapeutic peptides: A review. Chirality 2024; 36. [PMID: 38448043 DOI: 10.1002/chir.23652] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2023] [Revised: 01/17/2024] [Accepted: 01/31/2024] [Indexed: 03/08/2024]
Abstract
Synthetic therapeutic peptides are a complex and popular class of pharmaceuticals. In recent years, peptides with proven therapeutic activity have gained significant interest in the market. The determination of synthetic peptide enantiomeric purity plays a critical role in the evaluation of the quality of the medicine. Since racemization is one of the most common side reactions occurring in AAs or peptides, enantiomeric impurities such as D-isomers can form during the peptide synthesis or can be introduced from the starting materials (e.g., AAs). The therapeutic effect of a synthetic or semi-synthetic bioactive peptide molecule depends on its AA enantiomeric purity and secondary/tertiary structure. Therefore, the enantiomeric purity determination for synthetic peptides is supportive for interpreting unwanted therapeutic effects and determining the quality of synthetic peptide therapeutics. However, enantiomeric purity analysis encounters formidable analytical challenges during chromatographic separation, as D/L isomers have identical physical-chemical properties except stereochemical configuration. To ensure peptides AA stereochemical configuration whether in the free or bound state, sensitive and reproducible quantitative analytical method is mandatory. In this regard, numerous analytical techniques were emerged for the quantification of D-isomeric impurities in synthetic peptides, but still, very few reports are available in the literature. Thus, the purpose of this paper is to provide an overview of the importance, regulatory requirements, and various analytical methods used for peptide enantiomeric purity determination. In addition, we discussed the available literature in terms of enantiomeric impurity detection, common hydrolysis procedural aspects, and different analytical strategies used for sample preparation.
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Affiliation(s)
- Devendra Badgujar
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
| | - Sree Teja Paritala
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
| | - Shubham Matre
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
| | - Nitish Sharma
- National Institute of Pharmaceutical Education and Research-Ahmedabad, Ministry of Chemicals and Fertilizers, Government of India, Gandhinagar, Gujarat, India
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Paškan M, Dobšíková K, Kuchař M, Setnička V, Kohout M. Synthesis and absolute configuration of cyclic synthetic cathinones derived from α-tetralone. Chirality 2024; 36:e23646. [PMID: 38353318 DOI: 10.1002/chir.23646] [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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/08/2024] [Accepted: 01/09/2024] [Indexed: 02/16/2024]
Abstract
The emergence of new synthetic cathinones continues to be a matter of public health concern. In fact, already known products (drugs) are being rapidly replaced by new structurally related alternatives, whereby modifications in the basic cathinone structure are used by manufacturers to circumvent the legislation. On the other hand, some derivatives of synthetic cathinones represent important pharmaceuticals with antidepressant properties. In the search for pharmaceutically relevant analogs, the main goal of the present study was to design and characterize novel cyclic α-tetralone-based derivatives of synthetic cathinones. We synthesized a series of derivatives and verified their chemical structure. Subsequently, chiral separation has been accomplished by high-performance liquid chromatography (HPLC) equipped with a circular dichroism (CD) detector, which directly provided CD spectra of the enantiomers of the analyzed substances at 252 nm. Using density functional theory calculations, we have obtained stable conformers of selected enantiomers in solution and their relative abundances, which we used to simulate their spectra. The experimental and calculated data have been used to assign the absolute configuration of six as-yet unknown synthetic cathinones.
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Affiliation(s)
- Martin Paškan
- Department of Organic Chemistry, University of Chemistry and Technology, Prague 6, Czech Republic
| | - Kristýna Dobšíková
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 6, Czech Republic
| | - Martin Kuchař
- Forensic Laboratory of Biologically Active Substances, Department of Natural Compounds, University of Chemistry and Technology, Prague 6, Czech Republic
- Psychedelic Research Centre, National Institute of Mental Health, Klecany, Czech Republic
| | - Vladimír Setnička
- Department of Analytical Chemistry, University of Chemistry and Technology, Prague 6, Czech Republic
| | - Michal Kohout
- Department of Organic Chemistry, University of Chemistry and Technology, Prague 6, Czech Republic
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Ishii C, Hamase K. Two-dimensional LC-MS/MS and three-dimensional LC analysis of chiral amino acids and related compounds in real-world matrices. J Pharm Biomed Anal 2023; 235:115627. [PMID: 37633168 DOI: 10.1016/j.jpba.2023.115627] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 08/04/2023] [Accepted: 08/05/2023] [Indexed: 08/28/2023]
Abstract
Amino acids normally have a chiral carbon and d/l-enantiomers are present. Due to the homochirality features on the present Earth, l-enantiomers are predominant in the living beings and the d-enantiomers are rare. Along with the progress and development of cutting edge analytical methods, several d-amino acids were found even in the higher animals including humans, and their biological functions and diagnostic values have also been reported. However, the amounts of these d-amino acids are much lower than the l-forms, and development/utilization of highly sensitive and selective methods are practically essential to avoid the disturbance from uncountable intrinsic substances. In the present review, multi-dimensional HPLC methods for the determination of chiral amino acids, especially two-dimensional LC-MS/MS and three-dimensional LC methods, and their applications to a variety of real-world matrices are summarized.
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Affiliation(s)
- Chiharu Ishii
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan
| | - Kenji Hamase
- Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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Gioé-Gallo C, Ortigueira S, Brea J, Raïch I, Azuaje J, Paleo MR, Majellaro M, Loza MI, Salas CO, García-Mera X, Navarro G, Sotelo E. Pharmacological insights emerging from the characterization of a large collection of synthetic cannabinoid receptor agonists designer drugs. Biomed Pharmacother 2023; 164:114934. [PMID: 37236027 DOI: 10.1016/j.biopha.2023.114934] [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: 12/28/2022] [Revised: 04/01/2023] [Accepted: 05/22/2023] [Indexed: 05/28/2023] Open
Abstract
Synthetic cannabinoid receptor agonists (SCRAs) constitute the largest and most defiant group of abuse designer drugs. These new psychoactive substances (NPS), developed as unregulated alternatives to cannabis, have potent cannabimimetic effects and their use is usually associated with episodes of psychosis, seizures, dependence, organ toxicity and death. Due to their ever-changing structure, very limited or nil structural, pharmacological, and toxicological information is available to the scientific community and the law enforcement offices. Here we report the synthesis and pharmacological evaluation (binding and functional) of the largest and most diverse collection of enantiopure SCRAs published to date. Our results revealed novel SCRAs that could be (or may currently be) used as illegal psychoactive substances. We also report, for the first time, the cannabimimetic data of 32 novel SCRAs containing an (R) configuration at the stereogenic center. The systematic pharmacological profiling of the library enabled the identification of emerging Structure-Activity Relationship (SAR) and Structure-Selectivity Relationship (SSR) trends, the detection of ligands exhibiting incipient cannabinoid receptor type 2 (CB2R) subtype selectivity and highlights the significant neurotoxicity of representative SCRAs on mouse primary neuronal cells. Several of the new emerging SCRAs are currently expected to have a rather limited potential for harm, as the evaluation of their pharmacological profiles revealed lower potencies and/or efficacies. Conceived as a resource to foster collaborative investigation of the physiological effects of SCRAs, the library obtained can contribute to addressing the challenge posed by recreational designer drugs.
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Affiliation(s)
- Claudia Gioé-Gallo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Sandra Ortigueira
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - José Brea
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain.
| | - Iu Raïch
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona 08028, Spain; Institute of Neurosciences (NeuroUB), Campus Mundet, University of Barcelona, Barcelona 08035, Spain
| | - Jhonny Azuaje
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - M Rita Paleo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Maria Majellaro
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - María Isabel Loza
- Centro Singular de Investigación en Medicina Molecular y Enfermedades Crónicas (CiMUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Cristian O Salas
- Department of Organic Chemistry, Faculty of Chemistry and Pharmacy, Pontificia Universidad Católica de Chile, Vicuña Mackenna 4860, Macul, Santiago 7820436, Chile
| | - Xerardo García-Mera
- Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain
| | - Gemma Navarro
- Department of Biochemistry and Physiology, School of Pharmacy and Food Science, Universitat de Barcelona, Barcelona 08028, Spain; Institute of Neurosciences (NeuroUB), Campus Mundet, University of Barcelona, Barcelona 08035, Spain.
| | - Eddy Sotelo
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CiQUS), Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain; Departamento de Química Orgánica, Facultad de Farmacia, Universidade de Santiago de Compostela, Santiago de Compostela 15782, Spain.
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Onozato M, Nakanoue H, Sakamoto T, Umino M, Fukushima T. Determination of d- and l-Amino Acids in Garlic Foodstuffs by Liquid Chromatography-Tandem Mass Spectrometry. Molecules 2023; 28:molecules28041773. [PMID: 36838762 PMCID: PMC9965777 DOI: 10.3390/molecules28041773] [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] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2023] [Revised: 02/03/2023] [Accepted: 02/03/2023] [Indexed: 02/16/2023] Open
Abstract
Black garlic is currently attracting interest as a health food and constituent of commercial supplements; however, no data regarding the d-amino acids within black garlic have been reported. Therefore, the amino acid compositions of methanol extracts from fresh and black garlic were compared herein. We investigated the contents of the d- and l-forms of amino acids in commercial fresh, black, and freeze-dried garlic foodstuffs by liquid chromatography-tandem mass spectrometry (LC-MS/MS) using a pre-column chiral derivatization reagent, succinimidyl 2-(3-((benzyloxy)carbonyl)-1-methyl-5-oxoimidazolidin-4-yl) acetate. Several d-amino acids, namely, the d-forms of Asn, Ala, Ser, Thr, Glu, Asp, Pro, Arg, Phe, Orn, Lys, and Tyr, were observed in the methanol extract of black garlic, whereas only d-Ala was detected in that of fresh garlic foodstuffs. These data suggest that several d-amino acids can be produced during fermentation for preparing black garlic.
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Affiliation(s)
- Mayu Onozato
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi 274-8510, Japan
| | - Haruna Nakanoue
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi 274-8510, Japan
| | - Tatsuya Sakamoto
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi 274-8510, Japan
| | - Maho Umino
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi 274-8510, Japan
| | - Takeshi Fukushima
- Department of Analytical Chemistry, Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi 274-8510, Japan
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FURUSHO A, IKEJIRI KA, ISHII C, AKITA T, MITA M, NAGANO M, IDE T, HAMASE K. Two-Dimensional High-Performance Liquid Chromatographic Determination of Chiral Amino Acids in Food Samples and Human Physiological Fluids Using Fluorescence Derivatization with 4-(<i>N</i>,<i>N</i>-Dimethylaminosulfonyl)-7-fluoro-2,1,3-benzoxadiazole. CHROMATOGRAPHY 2022. [DOI: 10.15583/jpchrom.2021.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Aogu FURUSHO
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | - Chiharu ISHII
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Takeyuki AKITA
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | - Tomomi IDE
- Graduate School of Medical Sciences, Kyushu University
| | - Kenji HAMASE
- Graduate School of Pharmaceutical Sciences, Kyushu University
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Su Y, Liu C, Du J, Jiang X, Wei W, Tong X. Monitoring of the yogurt fermentation process based on a rapid bio-luminescent chiral pattern recognition of amino acids. Analyst 2022; 147:4570-4577. [DOI: 10.1039/d2an01011a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A luminescent bacterial sensor array was established for the discrimination of multiple chiral amino acids and the monitoring of the yogurt fermentation process.
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Affiliation(s)
- Yuchen Su
- School of Pharmaceutical Sciences, Chongqing University, No. 55, Daxuecheng South Road, Shapingba District, Chongqing 401331, P. R. China
| | - Chunlan Liu
- School of Pharmaceutical Sciences, Chongqing University, No. 55, Daxuecheng South Road, Shapingba District, Chongqing 401331, P. R. China
| | - Jiayin Du
- School of Pharmaceutical Sciences, Chongqing University, No. 55, Daxuecheng South Road, Shapingba District, Chongqing 401331, P. R. China
| | - Xuemei Jiang
- School of Pharmaceutical Sciences, Chongqing University, No. 55, Daxuecheng South Road, Shapingba District, Chongqing 401331, P. R. China
| | - Weili Wei
- School of Pharmaceutical Sciences, Chongqing University, No. 55, Daxuecheng South Road, Shapingba District, Chongqing 401331, P. R. China
| | - Xiaoyong Tong
- School of Pharmaceutical Sciences, Chongqing University, No. 55, Daxuecheng South Road, Shapingba District, Chongqing 401331, P. R. China
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Tseng YS, Liao CH, Wu WB, Ma MC. N-methyl-d-aspartate receptor hyperfunction contributes to d-serine-mediated renal insufficiency. Am J Physiol Renal Physiol 2021; 320:F799-F813. [PMID: 33749324 DOI: 10.1152/ajprenal.00461.2020] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Accepted: 03/18/2021] [Indexed: 01/07/2023] Open
Abstract
Glutamate N-methyl-d-aspartate receptor (NMDAR) hyperfunction is known to contribute to acute renal failure due to ischemia-reperfusion and endotoxemia. d-Serine is a coagonist for NMDAR activation, but whether NMDARs play a role in d-serine-mediated nephrotoxicity remains unclear. Here, we demonstrate that NMDAR blockade ameliorated d-serine-induced renal injury. In NMDAR-expressing LLC-PK1 cells, which were used as a proximal tubule model, d-serine but not l-serine induced cytotoxicity in a dose-dependent manner, which was abrogated by the selective NMDAR blockers MK-801 and AP-5. Time-dependent oxidative stress, evidenced by gradually increased superoxide and H2O2 production, was associated with d-serine-mediated cytotoxicity; these reactive oxygen species could be alleviated not only after NMDAR inhibition but also by NADPH oxidase (NOX) inhibition. Activation of protein kinase C (PKC)-δ and PKC-ζ is a downstream signal for NMDAR-mediated NOX activation because PKC inhibition diminishes the NOX activity that is induced by d-serine. Renal injury was further confirmed in male Wistar rats that intraperitoneally received d-serine but not l-serine. Peak changes in glucosuria, proteinuria, and urinary excretion of lactate dehydrogenase and malondialdehyde were found after 24 h of treatment. Persistent tubular damage was observed after 7 days of treatment. Cotreatment with the NMDAR blocker MK-801 for 24 h abolished d-serine-induced functional insufficiency and tubular damage. MK-801 attenuated renal superoxide formation by lowering NOX activity and protein upregulation of NOX4 but not NOX2. These results reveal that NMDAR hyperfunction underlies d-serine-induced renal injury via the effects of NOX4 on triggering oxidative stress.NEW & NOTEWORTHY Ionotropic N-methyl-d-aspartate receptors (NMDARs) are not only present in the nervous system but also expressed in the kidney. Overstimulation of renal NMDARs leads to oxidative stress via the signal pathway of calcium/protein kinase C/NADPH oxidase in d-serine-mediated tubular cell damage. Intervention of NMDAR blockade may prevent acute renal injury caused by d-serine.
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Affiliation(s)
- Yi-Shiou Tseng
- Division of Urology, Department of Surgery, Far Eastern Memorial Hospital, New Taipei, Taiwan
| | - Chun-Hou Liao
- Divisions of Urology, Department of Surgery, Cardinal Tien Hospital, New Taipei, Taiwan
- School of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Wen-Bin Wu
- School of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
| | - Ming-Chieh Ma
- School of Medicine, Fu Jen Catholic University, New Taipei, Taiwan
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FURUSHO A, OBROMSUK M, AKITA T, MITA M, NAGANO M, ROJSITTHISAK P, HAMASE K. High-Performance Liquid Chromatographic Determination of Chiral Amino Acids Using Pre-Column Derivatization with o-Phthalaldehyde and N- tert-Butyloxycarbonyl-D-cysteine and Application to Vinegar Samples. CHROMATOGRAPHY 2020. [DOI: 10.15583/jpchrom.2020.015] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Aogu FURUSHO
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | - Takeyuki AKITA
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | | | - Kenji HAMASE
- Graduate School of Pharmaceutical Sciences, Kyushu University
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Mizuno H, Shindo T, Ito K, Sakane I, Miyazaki Y, Toyo'oka T, Todoroki K. Development of a selective and sensitive analytical method to detect isomerized aspartic acid residues in crystallin using a combination of derivatization and liquid chromatography mass spectrometry. J Chromatogr A 2020; 1623:461134. [PMID: 32345439 DOI: 10.1016/j.chroma.2020.461134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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: 12/15/2019] [Revised: 04/13/2020] [Accepted: 04/14/2020] [Indexed: 11/24/2022]
Abstract
The isomerization of amino acids in peptides and proteins induces structural changes and aggregation. The isomerization rate of aspartic acid (Asp) is high and causes various serious diseases including Alzheimer's disease and cataract. Herein, a method for the comprehensive separation and sensitive detection of isomerized crystallin containing Asp (l-α-Asp, l-β-Asp, d-α-Asp, and d-β-Asp) was developed using chiral derivatization and reversed-phase UHPLC separation. Of three candidate derivatization reagents tested for the separation of peptides containing isomerized aspartic acid, 2,5-dioxopyrrolidin-1-yl-1-(4,6-dimethoxy-1,3,5-triazine-2-yl) pyrrolidine-2-carboxylate (DMT-(R)-Pro-OSu) was the most suitable reagent for separating isomerized peptides and improved the sensitivity of mass spectrometry by 50-fold. This method was applied to analyze heat-denatured crystallin. Asp58 and Asp151 residues in αA-crystallin (AAC) exhibited the highest isomerization rate in heated crystallin. Furthermore, the analysis of α-crystallin extracted from bovine eye lens identified isomerized Asp residues (Asp24/35, Asp58, and Asp151 in AAC and Asp140 in αB-crystallin (ABC)). These results indicate that the newly developed method using chiral derivatization provides selective and sensitive analysis of isomerized Asp sites in α-crystallin protein. This novel method will allow for the identification and quantification of isomerized amino acids in crystallin proteins.
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Affiliation(s)
- Hajime Mizuno
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Takuya Shindo
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Keisuke Ito
- Laboratory of Food Chemistry, School of Food and Nutritional Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Iwao Sakane
- Central Research Institute, ITO EN, Ltd., 21 Mekami, Makinohara, Shizuoka 421-0516, Japan
| | - Yasuto Miyazaki
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Toshimasa Toyo'oka
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan
| | - Kenichiro Todoroki
- Laboratory of Analytical and Bio-Analytical Chemistry, School of Pharmaceutical Sciences, University of Shizuoka, 52-1 Yada, Suruga-ku, Shizuoka 422-8526, Japan.
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Barbas-Bernardos C, Garcia-Perez I, Lorenzo MP, Alonso-Herranz V, Nicholson J, Garcia A. Development and validation of a high performance liquid chromatography-tandem mass spectrometry method for the absolute analysis of 17 α D-amino acids in cooked meals. J Chromatogr A 2020; 1611:460598. [DOI: 10.1016/j.chroma.2019.460598] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 09/25/2019] [Accepted: 10/03/2019] [Indexed: 02/07/2023]
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Marcone GL, Rosini E, Crespi E, Pollegioni L. D-amino acids in foods. Appl Microbiol Biotechnol 2020; 104:555-74. [PMID: 31832715 DOI: 10.1007/s00253-019-10264-9] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Revised: 11/12/2019] [Accepted: 11/22/2019] [Indexed: 02/07/2023]
Abstract
With the only exception of glycine, all amino acids exist in two specular structures which are mirror images of each other, called D-(dextro) and L-(levo) enantiomers. During evolution, L-amino acids were preferred for protein synthesis and main metabolism; however, the D-amino acids (D-AAs) acquired different and specific functions in different organisms (from playing a structural role in the peptidoglycan of the bacterial cell wall to modulating neurotransmission in mammalian brain). With the advent of sophisticated and sensitive analytical techniques, it was established during the past few decades that many foods contain considerable amounts of D-AAs: we consume more than 100 mg of D-AAs every day. D-AAs are present in a variety of foodstuffs, where they fulfill a relevant role in producing differences in taste and flavor and in their antimicrobial and antiaging properties from the corresponding L-enantiomers. In this review, we report on the derivation of D-AAs in foods, mainly originating from the starting materials, fermentation processes, racemization during food processing, or contamination. We then focus on leading-edge methods to identify and quantify D-AAs in foods. Finally, current knowledge concerning the effect of D-AAs on the nutritional state and human health is summarized, highlighting some positive and negative effects. Notwithstanding recent progress in D-AA research, the relationships between presence and nutritional value of D-AAs in foods represent a main scientific issue with interesting economic impact in the near future.
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14
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Palomino-Vasco M, Acedo-Valenzuela MI, Rodríguez-Cáceres MI, Mora-Diez N. Automated chromatographic method with fluorescent detection to determine biogenic amines and amino acids. Application to craft beer brewing process. J Chromatogr A 2019; 1601:155-163. [DOI: 10.1016/j.chroma.2019.04.063] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/02/2019] [Accepted: 04/23/2019] [Indexed: 12/27/2022]
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ISHII C, AKITA T, NAGANO M, MITA M, HAMASE K. Determination of Chiral Amino Acids in Various Fermented Products Using a Two-Dimensional HPLC-MS/MS System. CHROMATOGRAPHY 2019. [DOI: 10.15583/jpchrom.2019.011] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Chiharu ISHII
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Takeyuki AKITA
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | - Kenji HAMASE
- Graduate School of Pharmaceutical Sciences, Kyushu University
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Tang Q, Zhao L, Xie J, Liu K, Liu W, Zhou S. Deviations from Beer's law in electronic absorption and circular dichroism: Detection for enantiomeric excess analysis. Chirality 2019; 31:492-501. [PMID: 31111586 DOI: 10.1002/chir.23072] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 11/28/2018] [Revised: 03/28/2019] [Accepted: 04/08/2019] [Indexed: 11/10/2022]
Abstract
The electronic absorption (UV) to circular dichroism (CD) signal ratio can be used for enantiomeric excess (ee) analysis within linear range. However, CD detection often requires a high sample concentration where deviations from Beer's law may occur. Individual enantiomers of four chiral compounds were separated from commercial racemates by semipreparative high-performance liquid chromatography (HPLC) with chiral columns. They were used to trace possible deviations in both UV and CD detection on achiral HPLC with a photodiode array detector and a CD detector. The CD/UV ratios for samples with the same ee value decreased by up to 7.8 to 52% when the injection volume increased, indicating that the linear standard curve of ee versus CD/UV is only valid within a narrow range. To extend the sample amount to a wider range, a data-processing method was developed based on two second-order polynomial functions, which were constructed to fit the relationship between the intensities of the UV and CD signals for two enantiomers. Moreover, a more simplified method based on a third-order polynomial function was established to calculate the ee values. The variations between the predicted and experimental ee values were within ±0.08 for both methods. To our knowledge, this is the first study that the deviations from Beer's law are considered in both UV and CD detection for ee analysis.
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Affiliation(s)
- Qiaozhi Tang
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Lu Zhao
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Jingqian Xie
- College of Marine Ecology and Environment, Shanghai Ocean University, Shanghai, China
| | - Kai Liu
- Division of Engineering and Applied Science, W. M. Keck Laboratories, California Institute of Technology, Pasadena, California
| | - Weiping Liu
- College of Environmental and Resource Sciences, Zhejiang University, Hangzhou, China
| | - Shanshan Zhou
- College of Environment, Zhejiang University of Technology, Hangzhou, China
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Harada M, Karakawa S, Yamada N, Miyano H, Shimbo K. Biaryl axially chiral derivatizing agent for simultaneous separation and sensitive detection of proteinogenic amino acid enantiomers using liquid chromatography–tandem mass spectrometry. J Chromatogr A 2019; 1593:91-101. [DOI: 10.1016/j.chroma.2019.01.075] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Revised: 01/26/2019] [Accepted: 01/29/2019] [Indexed: 02/07/2023]
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SEREEKITTIKUL N, KOGA R, AKITA T, FURUSHO A, REISCHL R, MITA M, FUJII A, HASHIGUCHI K, NAGANO M, LINDNER W, HAMASE K. Multi-Dimensional HPLC Analysis of Serine Containing Chiral Dipeptides in Japanese Traditional Amber Rice Vinegar. CHROMATOGRAPHY 2018. [DOI: 10.15583/jpchrom.2018.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Nutchaya SEREEKITTIKUL
- Graduate School of Pharmaceutical Sciences, Kyushu University
- Faculty of Pharmacy, Mahidol University
| | - Reiko KOGA
- Graduate School of Pharmaceutical Sciences, Kyushu University
- Faculty of Pharmaceutical Sciences, Fukuoka University
| | - Takeyuki AKITA
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | - Aogu FURUSHO
- Graduate School of Pharmaceutical Sciences, Kyushu University
| | | | | | | | | | | | | | - Kenji HAMASE
- Graduate School of Pharmaceutical Sciences, Kyushu University
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Luo Y, Wu L, Yang B, Jin Y, Zheng K, He Z. A novel potential primary method for quantification of enantiomers by high performance liquid chromatography-circular dichroism. Sci Rep 2018; 8:7390. [PMID: 29743524 DOI: 10.1038/s41598-018-25682-4] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Accepted: 04/26/2018] [Indexed: 12/03/2022] Open
Abstract
Primary methods play an important role in metrology. They can be used for the value assignment of certified reference materials, enabling the accuracy and comparability of the measurement. A novel potential primary method for enantiomer quantitation based on high-performance liquid chromatography-circular dichroism is described using L-phenylalanine as an example. The optimal quantitation range of L-Phe was from 0.1 mg/g to 1.2 mg/g, where both the relative bias and method variance were lower than 1%. The LOD and LOQ were 4 μg/g and 30 μg/g, respectively. The proposed method was also applied to the determination of the mass fraction of pure porcine insulin in solid. The average mass fraction obtained was 0.922 g/g with a RSD of 1.5%, and the associated relative uncertainty is 3.8% (k = 2), which agreed well with that obtained from the traditional isotope dilution mass spectrometry method. The LOD and LOQ for insulin quantitation were found to be 0.12 mg/g and 0.44 mg/g, respectively. The proposed method can be entirely described and understood by equations and a complete uncertainty statement can be defined in SI units.Therefore, it may be a potential primary method useful for the quantification of chiral compounds and proteins, and a supplementary method to the traditional isotope dilution mass spectrometry approach.
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Miao Y, Liu Q, Wang W, Liu L, Wang L. Enantioseparation of amino acids by micellar capillary electrophoresis using binary chiral selectors and determination of D-glutamic acid and D-aspartic acid in rice wine. J LIQ CHROMATOGR R T 2017. [DOI: 10.1080/10826076.2017.1364263] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Yanni Miao
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Qi Liu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Wei Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Li Liu
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Li Wang
- School of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
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Onozato M, Nakazawa H, Ishimaru K, Nagashima C, Fukumoto M, Hakariya H, Sakamoto T, Ichiba H, Fukushima T. Alteration in plasma and striatal levels of d-serine after d-serine administration with or without nicergoline: An in vivo microdialysis study. Heliyon 2017; 3:e00399. [PMID: 28924620 PMCID: PMC5591394 DOI: 10.1016/j.heliyon.2017.e00399] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 02/21/2017] [Revised: 05/10/2017] [Accepted: 08/29/2017] [Indexed: 12/18/2022] Open
Abstract
Aims d-Serine (d-Ser), a co-agonist of N-methyl-d-aspartate receptor (NMDAR), is effective for treating schizophrenia. The present study investigated changes in plasma and striatal d-Ser levels in Sprague-Dawley (SD) rats after intraperitoneal d-Ser administration alone or together with nicergoline (Nic), a commercial cerebral ameliorating drug, using in vivo microdialysis (MD) to explore the function of Nic. Main methods Phosphate-buffered saline (PBS) or Nic (0, 1.0, or 3.0 mg/kg) followed by d-Ser (5.0, 10.0, 20.0, and 50.0 mg/kg for PBS or 20.0 mg/kg for Nic) was administered intraperitoneally to male SD rats, and the profiles of d-Ser levels in plasma and striatal MD samples were examined by high-performance liquid chromatography (HPLC) with fluorescence detection. The area under the curve (AUC) for the MD and plasma samples was also calculated and statistically compared among groups. Key findings AUC values of d-Ser increased in a d-Ser dose-dependent manner in plasma samples, while a proportional increase in the AUC values of striatal MD samples was only observed in d-Ser doses up to 20 mg/kg. The Nic co-administered group showed a significant increase in the AUC of plasma d-Ser in a Nic dose-dependent manner, but the AUC in striatal d-Ser significantly decreased with increasing Nic doses suggesting that Nic may prevent excess d-Ser from penetrating the central nervous system (CNS). Significance Nic may prevent an excessive distribution of exogenous d-Ser, such as that from a dietary origin, into the CNS by suppressing excitatory neurotransmission through NMDAR.
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Affiliation(s)
- Mayu Onozato
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Hiromi Nakazawa
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Katsuyuki Ishimaru
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Chihiro Nagashima
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Minori Fukumoto
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Hitomi Hakariya
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Tatsuya Sakamoto
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Hideaki Ichiba
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
| | - Takeshi Fukushima
- Faculty of Pharmaceutical Sciences, Toho University, 2-2-1 Miyama, Funabashi-shi, Chiba 274-8510, Japan
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Tian H, Zheng N, Li S, Zhang Y, Zhao S, Wen F, Wang J. Characterization of chiral amino acids from different milk origins using ultra-performance liquid chromatography coupled to ion-mobility mass spectrometry. Sci Rep 2017; 7:46289. [PMID: 28393862 PMCID: PMC5385494 DOI: 10.1038/srep46289] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2016] [Accepted: 03/15/2017] [Indexed: 12/11/2022] Open
Abstract
Milk contains free amino acids (AAs) that play essential roles in maintaining the growth and health of infants, and D-AA isomers are increasingly being recognized as important signalling molecules. However, there are no studies of the different characteristics of chiral AA (C-AA) from different milk origins. Here, UPLC coupled to ion-mobility high-resolution MS (IM-HRMS) was employed to characterize 18 pairs of C-AAs in human, cow, yak, buffalo, goat, and camel milk. The results proved that milk origins can be differentiated based on the D- to L- AA ratio-based projection scores by principal component analysis. The present study gives a deeper understanding of the D- to L- AA ratio underlying the biological functions of different animal milks, and provide a new strategy for the study of AA metabolic pathways.
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Affiliation(s)
- He Tian
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Nan Zheng
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Songli Li
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Yangdong Zhang
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Shengguo Zhao
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Fang Wen
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
| | - Jiaqi Wang
- State Key Laboratory of Animal Nutrition, Ministry of Agriculture Laboratory of Quality& Safety Risk Assessment for Dairy Products (Beijing), Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, P.R. China
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Mizuno H, Miyazaki Y, Ito K, Todoroki K, Min JZ, Toyo'oka T. A rapid and sensitive detection of D-Aspartic acid in Crystallin by chiral derivatized liquid chromatography mass spectrometry. J Chromatogr A 2016; 1467:318-25. [PMID: 27435686 DOI: 10.1016/j.chroma.2016.07.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2016] [Revised: 07/04/2016] [Accepted: 07/07/2016] [Indexed: 01/23/2023]
Abstract
A method for the determination of D-Aspartic acid (D-Asp) and its D/L ratio in peptides and proteins has been developed. This method was carried out with good separation of the D/L chiral peptide pairs by combination of a chiral derivatization and an ADME column separation. Furthermore, a cationic derivatization reagent, DBD-Py-NCS, increased the sensitivity of the ESI-MS/MS detection. To confirm the comprehensive peptide analysis, synthesized α-Crystallin tryptic peptides, which included D-Asp residues, were analyzed. The 5 pairs of D/L-Asp that included peptide diastereomers were well separated. Their peak resolutions were more than 1.5 and the results were reproducible (RSD<0.05, n=5). As an application of this method, we analyzed the α-Crystallin standard and UV irradiated α-Crystallin. After trypsin digestion and DBD-Py-NCS derivatization, the tryptic peptide derivatives were applied to LC-MS/MS. Based on the results of peptide sequence identification, almost all the tryptic peptides of the αA- and αB-Crystallin homologous subunits of α-Crystallin were detected as DBD-Py NCS derivatives. However, there was no D-Asp residue in the standard proteins. In the case of the UV irradiated α-Crystallin, Asp76 and Asp84 in the αA-Crystallin and Asp96 in αB-Crystallin were racemized to D-Asp. These results show that this proposed chiral peptide LC-MS/MS method using chiral derivatization provides a rapid and sensitive analysis for post translational Asp racemization sites in aging proteins.
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Sasaki T, Matsui S, Kitamura T. Control of Appetite and Food Preference by NMDA Receptor and Its Co-Agonist d-Serine. Int J Mol Sci 2016; 17:E1081. [PMID: 27399680 DOI: 10.3390/ijms17071081] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [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: 05/28/2016] [Revised: 06/21/2016] [Accepted: 06/30/2016] [Indexed: 11/30/2022] Open
Abstract
Obesity causes a significant negative impact on health of human beings world-wide. The main reason for weight gain, which eventually leads to obesity, is excessive ingestion of energy above the body’s homeostatic needs. Therefore, the elucidation of detailed mechanisms for appetite control is necessary to prevent and treat obesity. N-methyl-d-aspartate (NMDA) receptor is a post-synaptic glutamate receptor and is important for excitatory neurotransmission. It is expressed throughout the nervous system, and is important for long-term potentiation. It requires both ligand (glutamate) and co-agonist (d-serine or glycine) for efficient opening of the channel to allow calcium influx. d-serine is contained in fermented foods and marine invertebrates, and brain d-serine level is maintained by synthesis in vivo and supply from food and gut microbiota. Although the NMDA receptor has been reported to take part in the central regulation of appetite, the role of d-serine had not been addressed. We recently reported that exogenous d-serine administration can suppress appetite and alter food preference. In this review, we will discuss how NMDA receptor and its co-agonist d-seine participate in the control of appetite and food preference, and elaborate on how this system could possibly be manipulated to suppress obesity.
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Padró JM, Osorio-Grisales J, Arancibia JA, Olivieri AC, Castells CB. Scope of partial least-squares regression applied to the enantiomeric composition determination of ketoprofen from strongly overlapped chromatographic profiles. J Sep Sci 2015; 38:2423-30. [DOI: 10.1002/jssc.201500217] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/27/2015] [Accepted: 04/27/2015] [Indexed: 12/14/2022]
Affiliation(s)
- Juan M. Padró
- LIDMA (Laboratorio de Investigación y Desarrollo de Métodos Analíticos) y División Química Analítica; Universidad Nacional de La Plata; La Plata Argentina
| | - Jaiver Osorio-Grisales
- LIDMA (Laboratorio de Investigación y Desarrollo de Métodos Analíticos) y División Química Analítica; Universidad Nacional de La Plata; La Plata Argentina
| | - Juan A. Arancibia
- Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario, Instituto de Química de Rosario (IQUIR-CONICET); Rosario Argentina
| | - Alejandro C. Olivieri
- Departamento de Química Analítica, Facultad de Ciencias Bioquímicas y Farmacéuticas; Universidad Nacional de Rosario, Instituto de Química de Rosario (IQUIR-CONICET); Rosario Argentina
| | - Cecilia B. Castells
- LIDMA (Laboratorio de Investigación y Desarrollo de Métodos Analíticos) y División Química Analítica; Universidad Nacional de La Plata; La Plata Argentina
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Santa T. Recent advances in development and application of derivatization reagents having a benzofurazan structure: a brief overview: Recent advances in benzofurazan derivatization reagents. Biomed Chromatogr 2014; 28:760-6. [DOI: 10.1002/bmc.3115] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Miyoshi Y, Nagano M, Ishigo S, Ito Y, Hashiguchi K, Hishida N, Mita M, Lindner W, Hamase K. Chiral amino acid analysis of Japanese traditional Kurozu and the developmental changes during earthenware jar fermentation processes. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 966:187-92. [PMID: 24582151 DOI: 10.1016/j.jchromb.2014.01.034] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Revised: 01/22/2014] [Accepted: 01/23/2014] [Indexed: 02/08/2023]
Abstract
Enantioselective amino acid metabolome analysis of the Japanese traditional black vinegars (amber rice vinegar, Kurozu) was performed using two-dimensional high-performance liquid chromatography combining a microbore-monolithic ODS column and narrowbore-enantioselective columns. d-Amino acids, the enantiomers of widely observed l-amino acids, are currently paid attention as novel physiologically active substances, and the foodstuffs and beverages containing high amounts of d-amino acids are the subjects of interest. In the present study, the amino acid enantiomers were determined by two-dimensional HPLC techniques after pre-column fluorescence derivatization with 4-fluoro-7-nitro-2,1,3-benzoxadiazole. In the first dimension, the amino acid enantiomers are separated as their d plus l mixtures by the reversed-phase mode, then the d-amino acids and their l-counterparts are separately determined in the second dimension by the enantioselective columns. As a result, large amounts of d-Ala (800-4000nmol/mL), d-Asp (200-400nmol/mL) and d-Glu (150-500nmol/mL) were observed in some of the traditionally produced Kurozu vinegars. Relatively large or small amounts of d-Ser (50-100nmol/mL), d-Leu (10-50nmol/mL) and d-allo-Ile (less than 20nmol/mL) were also present in these samples. Developmental changes in the d-amino acid amounts during the fermentation and aging processes have also been investigated.
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Sun Y, Xu X, Mou Z, Wang J, Tan Z, Wu S. Analysis of free amino acids in Amur sturgeon by ultra-performance liquid chromatography using pre-column derivatization with 6-aminoquinolyl-carbamyl. J Sep Sci 2012; 35:3421-6. [DOI: 10.1002/jssc.201200733] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2012] [Revised: 08/24/2012] [Accepted: 08/27/2012] [Indexed: 11/07/2022]
Affiliation(s)
- Yanchun Sun
- College of Science; Harbin Institute of Technology; Harbin China
- Heilongjiang River Research Institute; Chinese Academy of Fishery Sciences; Harbin China
| | - Xianzhu Xu
- College of Science; Harbin Institute of Technology; Harbin China
| | - Zhenbo Mou
- Heilongjiang River Research Institute; Chinese Academy of Fishery Sciences; Harbin China
| | - Jing Wang
- Hospital of Harbin University of Science and Technology; Harbin China
| | - Zhijun Tan
- Yellow Sea Fisheries Research Institute; Chinese Academy of Fishery Sciences; Qingdao China
| | - Song Wu
- Heilongjiang River Research Institute; Chinese Academy of Fishery Sciences; Harbin China
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