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Camilus N, Gao S, Mitti M, Macairan JR, Naccache R, Martic S. Selective detection of nitrotyrosine using dual-fluorescent carbon dots. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 279:121444. [PMID: 35660143 DOI: 10.1016/j.saa.2022.121444] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 05/10/2022] [Accepted: 05/26/2022] [Indexed: 06/15/2023]
Abstract
The post-translational modification of amino acid plays a critical role in normal and diseased biological states. Specifically, nitrotyrosine (nTyr) has been linked to diseases, including neurodegeneration, among others. Hence, alternative methods are required for detection and differentiation of nTyr from other structurally similar analogues, such as Tyrosine (Tyr) or phosphotyrosine (pTyr). Herein, the selective detection of nTyr, over other congeners, was achieved by using dual-fluorescent carbon dots (CDs) in buffered solution, artificial saliva, bovine serum albumin and diluted equine serum. The nTyr induced fluorescence quenching of the blue and red emissions of CDs, in the 20-105 μM linear range, and with the limit of detection (LOD) at 34 μM, which was well below the physiological concentration required for detection. The sensor was functional at biological pH values, with optimal quenching efficiency at basic pH. The sensor was highly selective for nTyr even in the presence of common biological interferences (metal cations, organic anions, amino acids, nucleosides and other biologicals). The mechanism of quenching (a combination of static and dynamic) was ascribed to the nonradiative energy transfer, due to electronic overlap between nTyr absorbance and CDs fluorescence emission, and electron transfer from excited CDs state to nTyr as an electron acceptor. The dual-fluorescent CDs represent viable sensors for key biological modifications, and their selectivity and sensitivity may be further improved through tailored chemical synthesis of CDs, such as tunable surface chemistry to promote selective recognition of analyte of interest.
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Affiliation(s)
- Nayomi Camilus
- Department of Forensic Science, Environmental and Life Sciences, Trent University, Canada
| | - Stephanie Gao
- Department of Forensic Science, Environmental and Life Sciences, Trent University, Canada
| | - Musonda Mitti
- Department of Forensic Science, Environmental and Life Sciences, Trent University, Canada
| | - Jun-Ray Macairan
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, Canada
| | - Rafik Naccache
- Department of Chemistry and Biochemistry and Centre for NanoScience Research, Concordia University, Canada
| | - Sanela Martic
- Department of Forensic Science, Environmental and Life Sciences, Trent University, Canada.
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2
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Pourhabib A, Arvand M. Electrochemical Sensing of Tryptophan and Tyrosine in Chronic Kidney Disease Patients Using Magnetic Core/Ag Nanoparticles Shell Nanocomposite Modified Electrode. JOURNAL OF ANALYTICAL CHEMISTRY 2022. [DOI: 10.1134/s1061934822020022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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3
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Tremblay A, Corcuff R, Goulet C, Godefroy SB, Doyen A, Beaulieu L. Valorization of American lobster (
Homarus americanus
) cooking waters: Preparation and characterization of a food ingredient. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15665] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ariane Tremblay
- Département des sciences des aliments Institut sur la nutrition et les aliments fonctionnels Université Laval Québec QC Canada
| | - Ronan Corcuff
- Département des sciences des aliments Institut sur la nutrition et les aliments fonctionnels Université Laval Québec QC Canada
| | - Charles Goulet
- Département de phytologie Université Laval Québec QC Canada
| | - Samuel B. Godefroy
- Département des sciences des aliments Institut sur la nutrition et les aliments fonctionnels Université Laval Québec QC Canada
| | - Alain Doyen
- Département des sciences des aliments Institut sur la nutrition et les aliments fonctionnels Université Laval Québec QC Canada
| | - Lucie Beaulieu
- Département des sciences des aliments Institut sur la nutrition et les aliments fonctionnels Université Laval Québec QC Canada
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4
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Liu M, Lao J, Wang H, Xu Z, Li J, Wen L, Yin Z, Luo C, Peng H. Electrochemical Determination of Tyrosine Using Graphene and Gold Nanoparticle Composite Modified Glassy Carbon Electrode. RUSS J ELECTROCHEM+ 2021. [DOI: 10.1134/s1023193520110063] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Pundi A, Chang CJ, Chen YS, Chen JK, Yeh JM, Zhuang CS, Lee MC. An aniline trimer-based multifunctional sensor for colorimetric Fe 3+, Cu 2+ and Ag + detection, and its complex for fluorescent sensing of L-tryptophan. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2021; 247:119075. [PMID: 33096391 DOI: 10.1016/j.saa.2020.119075] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Revised: 09/29/2020] [Accepted: 10/09/2020] [Indexed: 06/11/2023]
Abstract
The detection of metal ions and amino acids by the aniline oligomer-based receptor has not been reported yet, to the best of our knowledge. In this study, an efficient multifunctional cation-amino acid sensor (CAS) with aniline moiety and chiral thiourea binding site was synthesized by the reaction of aniline trimer and (S)-(+)-1-phenyl ethyl isothiocyanate. CAS can sense Fe3+, Cu2+, Ag+ ions, and L-tryptophan. These results can be recognized by the naked eye. The appropriate pH range for the quantitative analysis of Fe3+, Cu2+, and Ag+ by CAS in DMSO/water (30 vol% water) was evaluated. The interaction between CCS and metal ions was analyzed by 1H NMR titration. The detection limits of CAS for the Cu2+, Ag+, and Fe3+ were 0.214, 0.099, and 0.147 μM, respectively. Moreover, the CASCu2+ complex can act as a turn-on fluorescence sensor for L-tryptophan. On the contrary, there is no response upon the addition of other amino acids, such as L-histidine, L-proline, L-phenylalanine, L-threonine, L-methionine, L-tyrosine, and L-cystine to CASCu2+ complex.
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Affiliation(s)
- Arul Pundi
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Chi-Jung Chang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC.
| | - Yi-Shao Chen
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Jem-Kun Chen
- Department of Materials Science and Engineering, National Taiwan University of Science and Technology, 43, Sec. 4, Keelung Rd, Taipei 106, Taiwan, ROC
| | - Jui-Ming Yeh
- Department of Chemistry, Chung-Yuan Christian University, Chung Li, Taoyuan County 32023, Taiwan, ROC
| | - Cai-Shan Zhuang
- Department of Chemical Engineering, Feng Chia University, 100, Wenhwa Road, Seatwen, Taichung 40724, Taiwan, ROC
| | - Ming-Ching Lee
- Department of Surgery, Taichung Veterans General Hospital, 1650 Taiwan Boulevard Section 4, Taichung, 40705, Taiwan, ROC
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Ramalho A, Leblanc N, Fortin MG, Marette A, Tchernof A, Jacques H. Characterization of a Coproduct from the Sea Cucumber Cucumaria frondosa and Its Effects on Visceral Adipocyte Size in Male Wistar Rats. Mar Drugs 2020; 18:E530. [PMID: 33114645 PMCID: PMC7693588 DOI: 10.3390/md18110530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/20/2020] [Accepted: 10/22/2020] [Indexed: 12/03/2022] Open
Abstract
Sea cucumbers have been shown to have potential health benefits and are a rich source of several bioactive compounds, particularly triterpenoid saponins. However, most studies concentrate on the body wall, and little is known about the health effects of the coproducts. The objectives of this study were to determine the nutritional composition of a coproduct from the sea cucumber Cucumaria frondosa and the effects of the dietary consumption of this coproduct on cardiometabolic health in rats. Chemical, biochemical, and nutritional analyses were performed to characterize this coproduct. Forty (40) male Wistar rats were then equally divided into four groups and fed a purified control diet or a diet enriched with 0.5%, 1.5%, or 2.5% (by protein) of coproduct. After 28 days of feeding, the rats were sacrificed. Body and tissue weight, body composition, epididymal adipocyte diameter, plasma and hepatic lipids, glycemia, and insulinemia were measured at the end of the 28-day experiment. Analysis of the coproduct revealed high levels of protein, omega-3 fatty acids, minerals, and saponins. The 1.5% group had significantly smaller epididymal adipocytes vs. the control. We conclude that dietary administration of this sea cucumber coproduct at 1.5% doses decreases visceral adiposity, potentially decreasing the risk of cardiometabolic dysfunction. The coproduct's saponin content may contribute to the observed effects, but the impact of other components cannot be ruled out.
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Affiliation(s)
- Alan Ramalho
- School of Nutrition, Faculty of Agricultural and Food Sciences, Université Laval, Laval, QC G1V 0A6, Canada; (A.R.); (A.T.)
- Institute of Nutrition and Functional Foods, Université Laval, Laval, QC G1V 0A6, Canada; (N.L.); (A.M.)
| | - Nadine Leblanc
- Institute of Nutrition and Functional Foods, Université Laval, Laval, QC G1V 0A6, Canada; (N.L.); (A.M.)
| | - Marie-Gil Fortin
- Fisheries and Aquaculture Innovation Centre, Merinov, Gaspé, QC G4X 2V6, Canada;
| | - André Marette
- Institute of Nutrition and Functional Foods, Université Laval, Laval, QC G1V 0A6, Canada; (N.L.); (A.M.)
- Quebec Heart and Lung Institute, Université Laval, Laval, QC G1V 4G5, Canada
- Department of Medicine, Faculty of Medicine, Université Laval, Laval, QC G1V 0A6, Canada
| | - André Tchernof
- School of Nutrition, Faculty of Agricultural and Food Sciences, Université Laval, Laval, QC G1V 0A6, Canada; (A.R.); (A.T.)
- Quebec Heart and Lung Institute, Université Laval, Laval, QC G1V 4G5, Canada
| | - Hélène Jacques
- School of Nutrition, Faculty of Agricultural and Food Sciences, Université Laval, Laval, QC G1V 0A6, Canada; (A.R.); (A.T.)
- Institute of Nutrition and Functional Foods, Université Laval, Laval, QC G1V 0A6, Canada; (N.L.); (A.M.)
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Zou HY, Lu XY, Kong FY, Wang ZX, Li HY, Fang HL, Wang W. A voltammetric sensor based on reduced graphene oxide-hemin-Ag nanocomposites for sensitive determination of tyrosine. RSC Adv 2020; 10:28026-28031. [PMID: 35519092 PMCID: PMC9055674 DOI: 10.1039/d0ra04976j] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2020] [Accepted: 07/11/2020] [Indexed: 11/21/2022] Open
Abstract
A novel voltammetric sensor was designed and used for the determination of l-tyrosine (l-Tyr) by surface modification of a glassy carbon electrode with reduced graphene oxide-hemin-Ag (rGO-H-Ag) nanocomposites. The nanocomposites were synthesized by a facile one-pot hydrothermal method and characterized by means of transmission electron microscopy and Raman spectroscopy. The determination of l-Tyr was investigated by cyclic voltammetry and further quantified using differential pulse voltammetry. The results revealed a significant enhanced electrochemical oxidation effect for l-Tyr at the nanocomposites modified electrode. Two linear ranges from 0.1 to 100 μM and 100 to 1000 μM as well as a low detection limit of 30 nM (S/N = 3) were obtained. In addition, the sensor also demonstrated good selectivity, reproducibility and stability. A novel electrochemical sensor for the sensitive determination of l-Tyr was designed with a rGO-H-Ag nanocomposite modified electrode.![]()
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Affiliation(s)
- Hui-Yu Zou
- School of Chemistry and Chemical Engineering, Jiangsu University Zhenjiang 212013 China.,School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
| | - Xin-Yang Lu
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
| | - Fen-Ying Kong
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
| | - Zhong-Xia Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
| | - Heng-Ye Li
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
| | - Hai-Lin Fang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
| | - Wei Wang
- School of Chemistry and Chemical Engineering, Yancheng Institute of Technology Yancheng 224051 China +86-515-88298186 +86-515-88298186
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8
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Cioates Negut C, Stefanov C, Frederick van Staden J(K. Graphite Based Microsensors Developed for the Electrochemical Determination of L‐Tyrosine from Pharmaceutical Samples. ELECTROANAL 2020. [DOI: 10.1002/elan.201900733] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Catalina Cioates Negut
- Laboratory of Electrochemistry and PATLAB Bucharest Bucharest 060021 Romania
- National Institute of Research for Electrochemistry and Condensed Matter Timisoara Romania
| | - Cristina Stefanov
- Laboratory of Electrochemistry and PATLAB Bucharest Bucharest 060021 Romania
- National Institute of Research for Electrochemistry and Condensed Matter Timisoara Romania
| | - Jacobus (Koos) Frederick van Staden
- Laboratory of Electrochemistry and PATLAB Bucharest Bucharest 060021 Romania
- National Institute of Research for Electrochemistry and Condensed Matter Timisoara Romania
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9
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Zil’berg RA, Maistrenko VN, Kabirova LR, Gus’kov VY, Khamitov EM, Dubrovskii DI. A Chiral Voltammetric Sensor Based on a Paste Electrode Modified by Cyanuric Acid for the Recognition and Determination of Tyrosine Enantiomers. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820010189] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Tremblay A, Corcuff R, Goulet C, Godefroy SB, Doyen A, Beaulieu L. Valorization of snow crab (Chionoecetes opilio) cooking effluents for food applications. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:384-393. [PMID: 31595518 DOI: 10.1002/jsfa.10066] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2019] [Revised: 09/03/2019] [Accepted: 09/23/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Seafood processing generates significant amounts of solid and liquid waste in the environment. Such waste represents a potential source of high-value biomolecules for food, pharmaceutic and cosmetic applications. There are very few studies on the valorization of wastewaters compared to solid by-products. However, cooking waters are characterized by a high organic polluting load, which could contain valuable molecules such as proteins, pigments and flavor compounds. Snow crab (Chionoecetes opilio) processing is included among the most important processes in Canadian fisheries, although its cooking effluent composition is not well characterized. RESULTS The present study concentrated and valorized the biomass in snow crab cooking wastewaters for the development of products for food applications. A membrane process was designed and optimized to concentrate the effluents. The chemical composition of the concentrates was analyzed, including characterizing the flavor profile compounds. The extracts were mainly composed of proteins (592 g kg-1 ) and minerals (386 g kg-1 ) and contained desirable flavor compounds. Their functional properties (solubility, water-holding capacity, oil-holding capacity) and antioxidant activities were also assessed, and their safety was verified. CONCLUSION The cooking effluents generated by snow crab processing facilities, usually considered as waste, can be concentrated and turned into a natural aroma for the food industry. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Ariane Tremblay
- Département des sciences des aliments, Université Laval, Institut sur la nutrition et les aliments fonctionnels, Pavillon Paul-Comtois, QC, Canada
| | - Ronan Corcuff
- Département des sciences des aliments, Université Laval, Institut sur la nutrition et les aliments fonctionnels, Pavillon Paul-Comtois, QC, Canada
| | - Charles Goulet
- Département de phytologie, Université Laval, Pavillon de l'Envirotron, QC, Canada
| | - Samuel B Godefroy
- Département des sciences des aliments, Université Laval, Institut sur la nutrition et les aliments fonctionnels, Pavillon Paul-Comtois, QC, Canada
| | - Alain Doyen
- Département des sciences des aliments, Université Laval, Institut sur la nutrition et les aliments fonctionnels, Pavillon Paul-Comtois, QC, Canada
| | - Lucie Beaulieu
- Département des sciences des aliments, Université Laval, Institut sur la nutrition et les aliments fonctionnels, Pavillon Paul-Comtois, QC, Canada
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11
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Determination of free tyrosine in equestrian supplements by LC–MS/MS and comparison of its quantity with total free amino acids content in view of doping control. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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12
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Nebu J, Anu KS, Anjali Devi J, Aparna R, Aswathy A, Lekha G, Sony G. Pottasium triiodide enhanced turn-off sensing of tyrosine in carbon dot platform. Microchem J 2019. [DOI: 10.1016/j.microc.2018.12.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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13
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Impact of a high hydrostatic pressure pretreatment on the separation of bioactive peptides from flaxseed protein hydrolysates by electrodialysis with ultrafiltration membranes. Sep Purif Technol 2019. [DOI: 10.1016/j.seppur.2018.09.063] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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14
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Saelao S, Maneerat S, Thongruck K, Watthanasakphuban N, Wiriyagulopas S, Chobert JM, Haertlé T. Reduction of tyramine accumulation in Thai fermented shrimp (kung-som) by nisin Z-producing Lactococcus lactis KTH0-1S as starter culture. Food Control 2018. [DOI: 10.1016/j.foodcont.2018.03.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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15
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Shrimp Protein Hydrolysate Modulates the Timing of Proinflammatory Macrophages in Bupivacaine-Injured Skeletal Muscles in Rats. BIOMED RESEARCH INTERNATIONAL 2016; 2016:5214561. [PMID: 27868064 PMCID: PMC5102708 DOI: 10.1155/2016/5214561] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 09/14/2016] [Accepted: 09/28/2016] [Indexed: 11/27/2022]
Abstract
This study was designed to determine whether marine-derived proteins other than cod could have beneficial effects on inflammation following muscle injury. Macrophage and neutrophil densities were measured from bupivacaine-injured tibialis anterior muscle of rats fed isoenergetic diets containing either shrimp hydrolysate (Shr), casein hydrolysate (CaH), or whole casein (Ca). In this study, Shr reduced ED1+-macrophages at day 2 (p = 0.013), day 5 (p = 0.006), and day 14 after injury (p = 0.038) compared with Ca, indicating faster resolution of inflammation in Shr. Except for day 2 after injury where Shr led to lower ED1+-macrophages compared with CaH (p = 0.006), both Shr and CaH responded similarly at days 5, 14, and 28 after injury. This findings suggest that beneficial effects of Shr on ED1+-cells might be related to generation of anti-inflammatory peptides through the hydrolysis process, in addition to its high content of anti-inflammatory amino acids. However, while increasing myofiber cross-sectional area in noninjured muscles compared with both Ca and CaH, Shr failed to have a positive effect in corresponding injured muscles. These data indicate that shrimp hydrolysate can facilitate resolution of inflammation after muscle injury mainly through modulating proinflammatory macrophage accumulation but have less effect on optimal recovery in terms of muscle mass and fiber size.
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Ouyang D, Inoue S, Okazaki S, Hirakawa K. Tetrakis(N-methyl-p-pyridinio)porphyrin and its zinc complex can photosensitize damage of human serum albumin through electron transfer and singlet oxygen generation. J PORPHYR PHTHALOCYA 2016. [DOI: 10.1142/s1088424616500991] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
The photosensitized protein-damaging activity of water-soluble freebase tetrakis([Formula: see text]-methyl-[Formula: see text]-pyridinio)porphyrin (H2TMPyP), and its zinc complex (ZnTMPyP) was investigated using human serum albumin (HSA) as a target protein. These porphyrins bound to HSA and caused photosensitized oxidation of the tryptophan residue. The protein damage was enhanced in deuterium oxide and inhibited by sodium azide, a physical quencher of singlet oxygen, suggesting the contribution of singlet oxygen. However, an excess amount of sodium azide could not completely inhibit protein damage. These findings suggest the partial contribution of another mechanism to the protein damage, possibly the electron transfer mechanism. The Gibbs free energy of the electron transfer mechanism showed that electron transfer-mediated tryptophan oxidation by photoexcited H2TMPyP is more advantageous than that by ZnTMPyP. Actually, the quantum yield of protein damage through electron transfer by H2TMPyP was larger than that by ZnTMPyP. In addition, this study demonstrated that the association between porphyrin and protein plays an important role in photosensitized protein damage.
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Affiliation(s)
- Dongyan Ouyang
- Department of Optoelectronics and Nanostructure Science, Graduate School of Science and Technology, Shizuoka University, Johoku 3-5-1, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
| | - Shiori Inoue
- Applied Chemistry and Biochemical Engineering Course, Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, Johoku 3-5-1, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
| | - Shigetoshi Okazaki
- Medical Photonics Research Center, Hamamatsu University School of Medicine, Handayama 1-20-1, Higashi-ku, Hamamatsu, Shizuoka 431-3192, Japan
| | - Kazutaka Hirakawa
- Department of Optoelectronics and Nanostructure Science, Graduate School of Science and Technology, Shizuoka University, Johoku 3-5-1, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
- Applied Chemistry and Biochemical Engineering Course, Department of Engineering, Graduate School of Integrated Science and Technology, Shizuoka University, Johoku 3-5-1, Naka-ku, Hamamatsu, Shizuoka 432-8561, Japan
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17
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Scherf KA, Wieser H, Koehler P. Improved Quantitation of Gluten in Wheat Starch for Celiac Disease Patients by Gel-Permeation High-Performance Liquid Chromatography with Fluorescence Detection (GP-HPLC-FLD). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:7622-7631. [PMID: 27633005 DOI: 10.1021/acs.jafc.6b02512] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Purified wheat starch (WSt) is commonly used in gluten-free products for celiac disease (CD) patients. It is mostly well-tolerated, but doubts about its safety for CD patients persist. One reason may be that most ELISA kits primarily recognize the alcohol-soluble gliadin fraction of gluten, but insufficiently target the alcohol-insoluble glutenin fraction. To address this problem, a new sensitive method based on the sequential extraction of gliadins, glutenins, and gluten from WSt followed by gel-permeation high-performance liquid chromatography with fluorescence detection (GP-HPLC-FLD) was developed. It revealed that considerable amounts of glutenins were present in most WSt. The gluten contents quantitated by GP-HPLC-FLD as sum of gliadins and glutenins were higher than those by R5 ELISA (gluten as gliadin content multiplied by a factor of 2) in 19 out of 26 WSt. Despite its limited selectivity, GP-HPLC-FLD may be applied as confirmatory method to ELISA to quantitate gluten in WSt.
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Affiliation(s)
- Katharina Anne Scherf
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut , Lise-Meitner-Straße 34, 85354 Freising, Germany
| | - Herbert Wieser
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut , Lise-Meitner-Straße 34, 85354 Freising, Germany
| | - Peter Koehler
- Deutsche Forschungsanstalt für Lebensmittelchemie, Leibniz Institut , Lise-Meitner-Straße 34, 85354 Freising, Germany
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19
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A simplified HPLC method for determination of tryptophan in some cereals and legumes. Food Chem 2016; 193:26-9. [DOI: 10.1016/j.foodchem.2015.02.108] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2014] [Revised: 09/03/2014] [Accepted: 02/22/2015] [Indexed: 11/21/2022]
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20
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Yang X, Han Q, Zhang Y, Wu J, Tang X, Dong C, Liu W. Determination of free tryptophan in serum with aptamer--comparison of two aptasensors. Talanta 2014; 131:672-7. [PMID: 25281158 DOI: 10.1016/j.talanta.2014.08.023] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2014] [Revised: 07/31/2014] [Accepted: 08/06/2014] [Indexed: 01/02/2023]
Abstract
Two aptasensors based on graphene oxide (GO) and molecular beacon were designed for the detection of L-tryptophan (L-Trp) using L-Trp aptamer (Trp3a-1). The fluorescein (FAM) labeled Trp3a-1 was absorbed by GO, which resulted in the fluorescence quenching, and exhibiting minimal background fluorescence. Upon the addition of L-Trp, Trp3a-1 was not absorbed quickly. This effect allows for a quantitative assay of L-Trp over the concentration range of 10-500 μM and with a detection limit of 6.84 μM. However, due to the unspecific adsorption of GO, the GO based aptasensor can't be applied in complex matrixes. In respect of molecular beacon based aptasensor, FRET between Trp3a-1 labeled with FAM and CS-Trp3a-1 labeled with BHQ-1(black hole quencher-1) which is partially complementary with the aptamer was used to detect L-Trp. L-Trp binding could induce the disassociation of CS-Trp3a-1, resulted in the enhancement of fluorescence in solution. With an excellent linear relationship in 10-500 μM and a detection limit of 6.97 μM in 25% serum, the aptasensor is expected to be improved for the detection of free L-Trp in other complex samples.
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Affiliation(s)
- Xiaojuan Yang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Qingxin Han
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Yange Zhang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Jiang Wu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Xiaoliang Tang
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Chunxu Dong
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China
| | - Weisheng Liu
- Key Laboratory of Nonferrous Metals Chemistry and Resources Utilization of Gansu Province, Lanzhou University, Lanzhou 730000, China; State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou 730000, China.
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Electrodialytic separation of peptides from snow crab by-product hydrolysate: Effect of cell configuration on peptide selectivity and local electric field. Sep Purif Technol 2014. [DOI: 10.1016/j.seppur.2014.02.018] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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22
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Zhou S, Wu H, Wu Y, Shi H, Feng X, Huang H, Li J, Song W. Large surface area carbon material with ordered mesopores for highly selective determination of l-tyrosine in the presence of l-cysteine. Electrochim Acta 2013. [DOI: 10.1016/j.electacta.2013.08.134] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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23
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Electrochemical tyrosine sensor based on a glassy carbon electrode modified with a nanohybrid made from graphene oxide and multiwalled carbon nanotubes. Mikrochim Acta 2012. [DOI: 10.1007/s00604-012-0905-3] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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24
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Saraswat S, Snyder B, Isailovic D. Quantification of HPLC-separated peptides and proteins by spectrofluorimetric detection of native fluorescence and mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 902:70-7. [DOI: 10.1016/j.jchromb.2012.06.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2012] [Revised: 05/19/2012] [Accepted: 06/17/2012] [Indexed: 10/28/2022]
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25
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Garrido M, Espino J, Toribio-Delgado AF, Cubero J, Maynar-Mariño JI, Barriga C, Paredes SD, Rodríguez AB. A jerte valley cherry-based product as a supply of tryptophan. Int J Tryptophan Res 2012; 5:9-14. [PMID: 22553424 PMCID: PMC3338327 DOI: 10.4137/ijtr.s9394] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
L-Tryptophan (tryptophan) is an essential amino acid in humans. It has important roles as a precursor of different bioactive compounds. Based on previous studies in which tryptophan has been shown to be present in fresh cherries, the aim of the present work was to analyze the tryptophan content of a Jerte Valley cherry-based product. A previously optimized method of analysis of tryptophan was used, ie, high-performance liquid chromatography with fluorescence detection (HPLC/FL). As expected, HPLC/FL technique permitted to detect and quantify the tryptophan content in a different matrix rather than fresh cherries. In fact, the Jerte Valley cherry-based product contained 69.54 ± 10.64 ppm of tryptophan, thereby showing that this product is a good source of tryptophan. In summary, it has been proven that the Jerte Valley cherry-based product is rich in tryptophan and may be indicated as a supply of this essential amino acid as well as having potential health benefits for conditions where tryptophan is necessary.
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Affiliation(s)
- María Garrido
- Department of Physiology (Neuroimmunophysiology and Chrononutrition Research Group, Faculty of Science), University of Extremadura, Badajoz, Spain
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Ren YP, Tang AG, Zhou QX, Xiang ZY. Clinical significance of simultaneous determination of serum tryptophan and tyrosine in patients with lung cancer. J Clin Lab Anal 2012; 25:246-50. [PMID: 21786327 DOI: 10.1002/jcla.20467] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND To explore the clinical significance of serum tyrosine (Tyr) and tryptophan (Trp) in patients with lung cancer, we used a simple and efficient method of high-performance liquid chromatography with fluorescence detection (HPLC-FD) that simultaneously measured serum Trp and Tyr contents. METHODS The concentrations of Tyr and Trp were measured simultaneously by HPLC-FD in the sera of 80 patients with lung cancer and 120 healthy controls. RESULTS Trp concentrations were significantly lower in patients with lung cancer than in healthy controls (39.26±5.44 vs. 49.93±5.43 µmol/l, respectively; P<0.01), whereas in Tyr concentrations there were no differences with healthy controls (65.38±7.94 vs.66.40±8.55 µmol/l, respectively; P>0.05). In addition, patients in the adenocarcinoma group had significantly lower Trp and Tyr concentrations than those in squamous cell carcinoma group. There was no difference between the early stage and advanced stage of lung cancer. CONCLUSIONS Determination of serum Trp and Tyr concentrations can be employed to assist the diagnosis of the histotypes of lung cancer and tumor stage. Tyr and Trp as indexes on the lung cancer diagnostic sensitivity, specificity were 54.9, 62.9% and 82.4, 92.1%, Trp is an important and special index for lung cancer diagnosis of which the specificity of diagnosis of lung cancer is more than 92%.
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Affiliation(s)
- Ya-Ping Ren
- Department of Clinical Laboratory, Second Xiangya Hospital, Central South University, Changsha, P.R. China
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Huang GG, Cheng ML, Yang J. Metal Ion-Assisted Infrared Optical Sensor for Selective Determination of Tryptophan in Urine Samples. J CHIN CHEM SOC-TAIP 2011. [DOI: 10.1002/jccs.201190003] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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28
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Amperometric determination of L-tyrosine by an enzymeless sensor based on a carbon ceramic electrode modified with copper oxide nanoparticles. Mikrochim Acta 2010. [DOI: 10.1007/s00604-010-0527-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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29
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Bueno-Solano C, López-Cervantes J, Campas-Baypoli ON, Cortez-Rocha MO, Casillas-Hernández R, Milán-Carrillo J, Sánchez-Machado DI. Quantitative HPLC Analysis of Riboflavin and Aromatic Amino Acids in Three Forms of Shrimp Hydrolysates. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903320616] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- C. Bueno-Solano
- a Departamento de Biotecnología y Ciencias Alimentarias , Instituto Tecnológico de Sonora , Sonora, México
| | - J. López-Cervantes
- a Departamento de Biotecnología y Ciencias Alimentarias , Instituto Tecnológico de Sonora , Sonora, México
| | - O. N. Campas-Baypoli
- a Departamento de Biotecnología y Ciencias Alimentarias , Instituto Tecnológico de Sonora , Sonora, México
| | - M. O. Cortez-Rocha
- b Departamento de Investigación y Posgrado en Alimentos , Universidad de Sonora , Hermosillo, Sonora, México
| | - R. Casillas-Hernández
- a Departamento de Biotecnología y Ciencias Alimentarias , Instituto Tecnológico de Sonora , Sonora, México
| | - J. Milán-Carrillo
- c Facultad de Ciencias Químico-Biológicas, Universidad Autónoma de Sinaloa , Culiacán, Sinaloa, México
| | - D. I. Sánchez-Machado
- a Departamento de Biotecnología y Ciencias Alimentarias , Instituto Tecnológico de Sonora , Sonora, México
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Zhang JZ, Xue XF, Zhou JH, Chen F, Wu LM, Li Y, Zhao J. Determination of tryptophan in bee pollen and royal jelly by high-performance liquid chromatography with fluorescence detection. Biomed Chromatogr 2009; 23:994-8. [DOI: 10.1002/bmc.1213] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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