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Li M, Qiu J, Yan G, Zheng X, Li A. How does the neurotoxin β-N-methylamino-L-alanine exist in biological matrices and cause toxicity? THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 922:171255. [PMID: 38417517 DOI: 10.1016/j.scitotenv.2024.171255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Revised: 02/22/2024] [Accepted: 02/23/2024] [Indexed: 03/01/2024]
Abstract
The neurotoxin β-N-methylamino-L-alanine (BMAA) has been deemed as a risk factor for some neurodegenerative diseases such as amyotrophic lateral sclerosis/parkinsonism dementia complex (ALS/PDC). This possible link has been proved in some primate models and cell cultures with the appearance that BMAA exposure can cause excitotoxicity, formation of protein aggregates, and/or oxidative stress. The neurotoxin BMAA extensively exists in the environment and can be transferred through the food web to human beings. In this review, the occurrence, toxicological mechanisms, and characteristics of BMAA were comprehensively summarized, and proteins and peptides were speculated as its possible binding substances in biological matrices. It is difficult to compare the published data from previous studies due to the inconsistent analytical methods and components of BMAA. The binding characteristics of BMAA should be focused on to improve our understanding of its health risk to human health in the future.
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Affiliation(s)
- Min Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Jiangbing Qiu
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China
| | - Guowang Yan
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Xianyao Zheng
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China
| | - Aifeng Li
- College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; Key Laboratory of Marine Environment and Ecology, Ocean University of China, Ministry of Education, Qingdao 266100, China.
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2
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Bian Y, Zhang Y, Feng XS, Gao HY. Marine toxins in seafood: Recent updates on sample pretreatment and determination techniques. Food Chem 2024; 438:137995. [PMID: 38029684 DOI: 10.1016/j.foodchem.2023.137995] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 10/15/2023] [Accepted: 11/12/2023] [Indexed: 12/01/2023]
Abstract
Marine toxins can lead to varying degrees of human poisoning, often resulting in fatal symptoms and causing significant economic losses in seafood-producing regions. To gain a deeper comprehension of the role of marine toxins in seafood and their impact on the environment, it is imperative to develop rapid, cost-effective, environmentally friendly, and efficient methods for sample pretreatment and determination to mitigate adverse impacts of marine toxins. This review presents a comprehensive overview of advancements made in sample pretreatment and determination techniques for marine toxins since 2017. The advantages and disadvantages of various technologies were critically examined. Additionally, the current challenges and future development strategies for the analysis of marine toxins are provided.
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Affiliation(s)
- Yu Bian
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Yuan Zhang
- School of Pharmacy, China Medical University, Shenyang 110122, China
| | - Xue-Song Feng
- School of Pharmacy, China Medical University, Shenyang 110122, China.
| | - Hui-Yuan Gao
- School of Traditional Chinese Materia Medica, Shenyang Pharmaceutical University, Shenyang 110016, China; Key Laboratory of Structure-Based Drug Design & Discovery of Ministry of Education, Shenyang Pharmaceutical University, Shenyang 110016, China.
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3
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Carmona-Molero R, Aparicio-Muriana MM, Lara FJ, García-Campaña AM, Olmo-Iruela MD. Capillary electrophoresis tandem mass spectrometry to determine multiclass cyanotoxins in reservoir water and spinach samples. J Chromatogr A 2024; 1717:464666. [PMID: 38266594 DOI: 10.1016/j.chroma.2024.464666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Revised: 01/09/2024] [Accepted: 01/18/2024] [Indexed: 01/26/2024]
Abstract
Cyanotoxins constitute a group of toxic secondary metabolites, the presence of which in any water body poses a major health risk. Moreover, advanced organisms such as edible plants exposed to these toxins, are a possible pathway for human exposure. Green analytical chemistry is demanding environmentally friendly analytical techniques. In this sense, we propose the use of capillary electrophoresis coupled to tandem mass spectrometry (CE-MS/MS) to determine a mixture of eight cyanotoxins belonging to three different classes: cyclic peptides (microcystin-LR, microcystin-RR and nodularin), alkaloids (cylindrospermopsin and anatoxin-a) and three isomeric non-protein amino acids (β-methylamino-l-alanine, 2,4-diaminobutyric acid and N-(2-aminoethyl)glycine). Separation was achieved by using an acidic background electrolyte consisting of 2 M formic acid and 20% acetonitrile in water. Parameters affecting MS/MS detection and the sheath-liquid interface were also studied. Finally, a combination of pH-junction, field-amplified sample stacking (FASS) and acid barrage as online preconcentration strategies, was employed to improve sensitivity and efficiency. The online preconcentration applied, in combination with a dual cartridge solid-phase extraction (SPE) system, allows to obtain limits of detection in the very low range of µg·L-1 for these multiclass cyanotoxins in reservoir water samples (from 0.005 to 0.10 µg·L-1). Furthermore, for the first time cyanotoxins are analysed in spinach samples through CE-MS/MS using the same SPE procedure, following lyophilisation and solid-liquid extraction with 6 mL 80 % aqueous MeOH.
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Affiliation(s)
- Rocío Carmona-Molero
- Deparment of Analytical Chemistry, University of Granada, Av. Fuente Nueva s/n, 18071, Spain
| | - M Mar Aparicio-Muriana
- Deparment of Analytical Chemistry, University of Granada, Av. Fuente Nueva s/n, 18071, Spain
| | - Francisco J Lara
- Deparment of Analytical Chemistry, University of Granada, Av. Fuente Nueva s/n, 18071, Spain
| | - Ana M García-Campaña
- Deparment of Analytical Chemistry, University of Granada, Av. Fuente Nueva s/n, 18071, Spain
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4
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McClain A, Zhang Y, Yin Y, Wang Q, Hwang LY, Gu Y, Beckman J, Ludwig R. Using Digestion by IdeS Protease to Improve Quantification of Degradants in Monoclonal Antibodies by Non-Reducing Capillary Gel Electrophoresis. Anal Chem 2022; 94:17388-17395. [PMID: 36472948 PMCID: PMC9774260 DOI: 10.1021/acs.analchem.2c02630] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Accepted: 11/23/2022] [Indexed: 12/12/2022]
Abstract
Monoclonal antibodies (mAbs) have become predominant therapeutics by providing highly specific mechanisms of action enabling treatment of complex diseases. However, mAbs themselves are highly complex and require thorough testing and characterization to ensure efficacy and patient safety. In this regard, fragmentation is a degradation product of concern. The biotechnology industry uses capillary gel electrophoresis (CGE) to quantify fragmentation by electrophoretically resolving size variants, such as products resulting from partial reduction of interchain disulfides. However, standard CGE methods may not adequately separate less typical fragments, particularly when there is minimal size difference to the parent molecule. For mAb-1, a degradant only ∼11 kDa smaller than the intact mAb (∼149 kDa) was unable to be resolved under typical non-reducing conditions, preventing an accurate purity assessment and precluding tracking of product purity within stability studies. To address these deficiencies, a subunit-based non-reducing CGE method was developed to employ IdeS protease to produce F(ab')2 and Fc fragments, which resulted in baseline resolution of the clipped subunit species from its parent species. This enabled more accurate trending of purity throughout stability studies. Method characterization ensured that this subunit method monitored expected impurities observed by intact non-reducing CGE and thus could suitably replace non-reducing CGE in the release and stability testing panel. It also has the potential to replace reducing CGE based on its tracking of the deglycosylated Fc species. We believe this approach of utilizing proteases to develop subunit CGE methods for release and stability can be applied to other molecules when in need of resolving analogous fragments.
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Affiliation(s)
- Andrew McClain
- Bristol
Myers Squibb, 38 Jackson Rd, Devens, Massachusetts01434, United States
| | - Yiting Zhang
- Bristol
Myers Squibb, 38 Jackson Rd, Devens, Massachusetts01434, United States
| | - Yan Yin
- Bristol
Myers Squibb, 200 Cambridgepark Drive, Cambridge, Massachusetts02140, United States
| | - Qi Wang
- Bristol
Myers Squibb, 38 Jackson Rd, Devens, Massachusetts01434, United States
| | - Lih-Yueh Hwang
- Bristol
Myers Squibb, 556 Morris Ave, Summit, New Jersey07901, United States
| | - Yan Gu
- Bristol
Myers Squibb, 38 Jackson Rd, Devens, Massachusetts01434, United States
| | - Jeff Beckman
- Bristol
Myers Squibb, 38 Jackson Rd, Devens, Massachusetts01434, United States
| | - Richard Ludwig
- Bristol
Myers Squibb, 38 Jackson Rd, Devens, Massachusetts01434, United States
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5
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Panda D, Dash BP, Manickam S, Boczkaj G. Recent advancements in LC-MS based analysis of biotoxins: Present and future challenges. MASS SPECTROMETRY REVIEWS 2022; 41:766-803. [PMID: 33624883 DOI: 10.1002/mas.21689] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/04/2020] [Revised: 02/03/2021] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
There has been a rising concern regarding the harmful impact of biotoxins, source of origin, and the determination of the specific type of toxin. With numerous reports on their extensive spread, biotoxins pose a critical challenge to figure out their parent groups, metabolites, and concentration. In that aspect, liquid chromatography-mass spectrometry (LC-MS) based analysis paves the way for its accurate identification and quantification. The biotoxins are ideally categorized as phytotoxins, mycotoxins, shellfish-toxins, ciguatoxins, cyanotoxins, and bacterial toxins such as tetrodotoxins. Considering the diverse nature of biotoxins, both low-resolution mass spectrometry (LRMS) and high-resolution mass spectrometry (HRMS) methods have been implemented for their detection. The sample preparation strategy for complex matrix usually includes "QuEChERS" extraction or solid-phase extraction coupled with homogenization and centrifugation. For targeted analysis of biotoxins, the LRMS consisting of a tandem mass spectrometer operating in multiple reaction monitoring mode has been widely implemented. With the help of the reference standard, most of the toxins were accurately quantified. At the same time, the suspect screening and nontarget screening approach are facilitated by the HRMS platforms during the absence of reference standards. Significant progress has also been made in sampling device employment, utilizing novel sample preparation strategies, synthesizing toxin standards, employing hybrid MS platforms, and the associated data interpretation. This critical review attempts to elucidate the progress in LC-MS based analysis in the determination of biotoxins while pointing out major challenges and suggestions for future development.
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Affiliation(s)
- Debabrata Panda
- Center of Excellence (CoE), Fakir Mohan University, Nuapadhi, Odisha, India
| | - Bisnu P Dash
- Department of Bioscience and Biotechnology, Fakir Mohan University, Nuapadhi, Odisha, India
| | - Sivakumar Manickam
- Petroleum and Chemical Engineering, Faculty of Engineering, Universiti Teknologi Brunei, Bandar Seri Begawan, Brunei Darussalam
| | - Grzegorz Boczkaj
- Department of Process Engineering and Chemical Technology, Faculty of Chemistry, Gdansk University of Technology, Gdańsk, Poland
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6
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Patel VD, Shamsi SA, Sutherland K. Capillary electromigration techniques coupled to mass spectrometry: Applications to food analysis. Trends Analyt Chem 2021; 139. [DOI: 10.1016/j.trac.2021.116240] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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7
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Ra D, Sa B, Sl B, Js M, Sj M, DA D, Ew S, O K, Eb B, Ad C, Vx T, Gg G, Pa C, Dc M, Wg B. Is Exposure to BMAA a Risk Factor for Neurodegenerative Diseases? A Response to a Critical Review of the BMAA Hypothesis. Neurotox Res 2021; 39:81-106. [PMID: 33547590 PMCID: PMC7904546 DOI: 10.1007/s12640-020-00302-0] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2020] [Revised: 10/19/2020] [Accepted: 10/20/2020] [Indexed: 12/15/2022]
Abstract
In a literature survey, Chernoff et al. (2017) dismissed the hypothesis that chronic exposure to β-N-methylamino-L-alanine (BMAA) may be a risk factor for progressive neurodegenerative disease. They question the growing scientific literature that suggests the following: (1) BMAA exposure causes ALS/PDC among the indigenous Chamorro people of Guam; (2) Guamanian ALS/PDC shares clinical and neuropathological features with Alzheimer’s disease, Parkinson’s disease, and ALS; (3) one possible mechanism for protein misfolds is misincorporation of BMAA into proteins as a substitute for L-serine; and (4) chronic exposure to BMAA through diet or environmental exposures to cyanobacterial blooms can cause neurodegenerative disease. We here identify multiple errors in their critique including the following: (1) their review selectively cites the published literature; (2) the authors reported favorably on HILIC methods of BMAA detection while the literature shows significant matrix effects and peak coelution in HILIC that may prevent detection and quantification of BMAA in cyanobacteria; (3) the authors build alternative arguments to the BMAA hypothesis, rather than explain the published literature which, to date, has been unable to refute the BMAA hypothesis; and (4) the authors erroneously attribute methods to incorrect studies, indicative of a failure to carefully consider all relevant publications. The lack of attention to BMAA research begins with the review’s title which incorrectly refers to BMAA as a “non-essential” amino acid. Research regarding chronic exposure to BMAA as a cause of human neurodegenerative diseases is emerging and requires additional resources, validation, and research. Here, we propose strategies for improvement in the execution and reporting of analytical methods and the need for additional and well-executed inter-lab comparisons for BMAA quantitation. We emphasize the need for optimization and validation of analytical methods to ensure that they are fit-for-purpose. Although there remain gaps in the literature, an increasingly large body of data from multiple independent labs using orthogonal methods provides increasing evidence that chronic exposure to BMAA may be a risk factor for neurological illness.
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Affiliation(s)
- Dunlop Ra
- Brain Chemistry Labs, Institute for Ethnomedicine, Jackson, WY, USA.
| | - Banack Sa
- Brain Chemistry Labs, Institute for Ethnomedicine, Jackson, WY, USA
| | - Bishop Sl
- Lewis Research Group, Faculty of Science, University of Calgary, Alberta, Canada
| | - Metcalf Js
- Brain Chemistry Labs, Institute for Ethnomedicine, Jackson, WY, USA
| | - Murch Sj
- Department of Chemistry, University of British Columbia, Kelowna, BC, Canada
| | - Davis DA
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA
| | - Stommel Ew
- Department of Neurology, Dartmouth-Hitchcock Medical Center, Lebanon, NH, USA
| | - Karlsson O
- Department of Environmental Science, Stockholm University, Stockholm, Sweden
| | - Brittebo Eb
- Department of Pharmaceutical Biosciences, Uppsala University, Uppsala, Sweden
| | | | - Tan Vx
- Department of Biological Sciences, Macquarie University Centre for Motor Neuron Disease Research, Macquarie University, Ryde, Australia
| | - Guillemin Gg
- Department of Biological Sciences, Macquarie University Centre for Motor Neuron Disease Research, Macquarie University, Ryde, Australia
| | - Cox Pa
- Brain Chemistry Labs, Institute for Ethnomedicine, Jackson, WY, USA
| | - Mash Dc
- Nova Southeastern University, Fort Lauderdale, FL, USA
| | - Bradley Wg
- Department of Neurology, Miller School of Medicine, University of Miami, Miami, FL, USA
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8
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Kartsova LA, Makeeva DV, Bessonova EA. Current Status of Capillary Electrophoresis. JOURNAL OF ANALYTICAL CHEMISTRY 2020. [DOI: 10.1134/s1061934820120084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Second Laboratory Validation of β-N-Methylamino-L-Alanine, N-(2aminoethyl)Glycine, and 2,4-Diaminobuytric Acid by Ultra-Performance Liquid Chromatography and Tandem Mass Spectrometry. Neurotox Res 2020; 39:107-116. [PMID: 32462275 DOI: 10.1007/s12640-020-00208-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2019] [Revised: 03/23/2020] [Accepted: 04/14/2020] [Indexed: 12/16/2022]
Abstract
The analysis of β-N-methylamino-L-alanine (BMAA) has been validated according to AOAC international standards by a single laboratory (Glover et al. 2015). Using the same validated method, we add a second laboratory validation optimizing for different equipment. Given publicized concerns about standardizing methods across laboratories and recent reviews indicating superior results using 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate derivatization for the separation of BMAA and its isomers N-(2aminoethyl)glycine (AEG), and 2,4-diaminobuytric acid (DAB) (Bishop and Murch 2019), we add a second laboratory validation to this method demonstrating that the method is robust across laboratories using different equipment. Using the US Food and Drug Administration (FDA 2018) method for evaluating instrument parameters, we calculated a limit of detection (LOD) of 10 pg/ml for BMAA, AEG, and DAB and lower limits of quantification (LLOQ) of 37 pg/ml based on reagent blanks. In biological matrices, a higher LLOQ may be warranted for AEG and DAB. We demonstrate that the endogenous BMAA in mussel tissue can be lost by drying the hydrolyzed preparation and suggest sample preparation parameters be evaluated for robustness.
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10
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Wang S, Qiu J, Zhao M, Li F, Yu R, Li A. Accumulation and distribution of neurotoxin BMAA in aquatic animals and effect on the behavior of zebrafish in a T-maze test. Toxicon 2020; 173:39-47. [DOI: 10.1016/j.toxicon.2019.11.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Revised: 11/08/2019] [Accepted: 11/11/2019] [Indexed: 11/16/2022]
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11
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Bishop SL, Murch SJ. A systematic review of analytical methods for the detection and quantification of β-N-methylamino-l-alanine (BMAA). Analyst 2019; 145:13-28. [PMID: 31742261 DOI: 10.1039/c9an01252d] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Neurodegenerative diseases are influenced by environmental factors such as exposure to toxins including the cyanotoxin β-N-methylamino-l-alanine (BMAA) that can bioaccumulate in common food sources such as fish, mussels and crabs. Accurate and precise analytical methods are needed to detect and quantify BMAA to minimize human health risks. The objective of this review is to provide a comprehensive overview of the methods used for BMAA analysis from 2003 to 2019 and to evaluate the reported performance characteristics for each method to determine the consensus data for each analytical approach and different sample matrices. Detailed searches of the database Web of Science™ (WoS) were performed between August 21st, 2018 and April 5th, 2019. Eligible studies included analytical methods for the detection and quantification of BMAA in cyanobacteria and bioaccumulated BMAA in higher trophic levels, in phytoplankton and zooplankton and in human tissues and fluids. This systematic review has limitations in that only the English language literature is included and it did not include standard operating protocols nor any method validation data that have not been made public. We identified 148 eligible studies, of which a positive result for BMAA in one or more samples analyzed was reported in 84% (125 out of 148) of total studies, 57% of HILIC studies, 92% of RPLC studies and 71% of other studies. The largest discrepancy between different methods arose from the analysis of cyanobacteria samples, where BMAA was detected in 95% of RPLC studies but only in 25% of HILIC studies. Without sufficient published validation of each method's performance characteristics, it is difficult to establish each method as fit for purpose for each sample matrix. The importance of establishing methods as appropriate for their intended use is evidenced by the inconsistent reporting of BMAA across environmental samples, despite its prevalence in diverse ecosystems and food webs.
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Affiliation(s)
- Stephanie L Bishop
- Chemistry, University of British Columbia, Kelowna, British Columbia, CanadaV1V 1V7.
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12
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Casanova-Morales N, Figueroa NL, Alfaro K, Montenegro F, Barrera NP, Maze JR, Wilson CAM, Conejeros P. Structural characterization of the saxitoxin-targeting APTSTX1 aptamer using optical tweezers and molecular dynamics simulations. PLoS One 2019; 14:e0222468. [PMID: 31697710 PMCID: PMC6837747 DOI: 10.1371/journal.pone.0222468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Accepted: 08/30/2019] [Indexed: 02/07/2023] Open
Abstract
Optical tweezers have enabled the exploration of picoNewton forces and dynamics in single-molecule systems such as DNA and molecular motors. In this work, we used optical tweezers to study the folding/unfolding dynamics of the APTSTX1-aptamer, a single-stranded DNA molecule with high affinity for saxitoxin (STX), a lethal neurotoxin. By measuring the transition force during (un)folding processes, we were able to characterize and distinguish the conformational changes of this aptamer in the presence of magnesium ions and toxin. This work was supported by molecular dynamics (MD) simulations to propose an unfolding mechanism of the aptamer-Mg+2 complex. Our results are a step towards the development of new aptamer-based STX sensors that are potentially cheaper and more sensitive than current alternatives.
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Affiliation(s)
- Nathalie Casanova-Morales
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
- Facultad de Artes Liberales, Universidad Adolfo Ibáñez, Santiago, Chile
| | | | - Karol Alfaro
- CIGREN. Instituto de Biología. Facultad de Ciencias. Universidad de Valparaíso, Valparaíso, Chile
| | - Felipe Montenegro
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Nelson P. Barrera
- Department of Physiology, Faculty of Biological Sciences, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - J. R. Maze
- Instituto de Física, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - Christian A. M. Wilson
- Departamento de Bioquímica y Biología Molecular, Facultad de Ciencias Químicas y Farmacéuticas, Universidad de Chile, Santiago, Chile
| | - Pablo Conejeros
- CIGREN. Instituto de Biología. Facultad de Ciencias. Universidad de Valparaíso, Valparaíso, Chile
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13
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The Diversity of Cyanobacterial Toxins on Structural Characterization, Distribution and Identification: A Systematic Review. Toxins (Basel) 2019; 11:toxins11090530. [PMID: 31547379 PMCID: PMC6784007 DOI: 10.3390/toxins11090530] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/06/2019] [Accepted: 09/09/2019] [Indexed: 11/19/2022] Open
Abstract
The widespread distribution of cyanobacteria in the aquatic environment is increasing the risk of water pollution caused by cyanotoxins, which poses a serious threat to human health. However, the structural characterization, distribution and identification techniques of cyanotoxins have not been comprehensively reviewed in previous studies. This paper aims to elaborate the existing information systematically on the diversity of cyanotoxins to identify valuable research avenues. According to the chemical structure, cyanotoxins are mainly classified into cyclic peptides, alkaloids, lipopeptides, nonprotein amino acids and lipoglycans. In terms of global distribution, the amount of cyanotoxins are unbalanced in different areas. The diversity of cyanotoxins is more obviously found in many developed countries than that in undeveloped countries. Moreover, the threat of cyanotoxins has promoted the development of identification and detection technology. Many emerging methods have been developed to detect cyanotoxins in the environment. This communication provides a comprehensive review of the diversity of cyanotoxins, and the detection and identification technology was discussed. This detailed information will be a valuable resource for identifying the various types of cyanotoxins which threaten the environment of different areas. The ability to accurately identify specific cyanotoxins is an obvious and essential aspect of cyanobacterial research.
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14
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Vo Duy S, Munoz G, Dinh QT, Tien Do D, Simon DF, Sauvé S. Analysis of the neurotoxin β-N-methylamino-L-alanine (BMAA) and isomers in surface water by FMOC derivatization liquid chromatography high resolution mass spectrometry. PLoS One 2019; 14:e0220698. [PMID: 31386693 PMCID: PMC6684067 DOI: 10.1371/journal.pone.0220698] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2019] [Accepted: 07/22/2019] [Indexed: 11/18/2022] Open
Abstract
The neurotoxin β-N-methylamino-L-alanine (BMAA), suspected to trigger neurodegenerative diseases, can be produced during cyanobacterial bloom events and subsequently affect ecosystems and water sources. Some of its isomers including β-amino-N-methylalanine (BAMA), N-(2-aminoethyl) glycine (AEG), and 2,4-diaminobutyric acid (DAB) may show different toxicities than BMAA. Here, we set out to provide a fast and sensitive method for the monitoring of AEG, BAMA, DAB and BMAA in surface waters. A procedure based on aqueous derivatization with 9-fluorenylmethyl chloroformate (FMOC-Cl) was investigated for this purpose. Under optimized conditions, a small aqueous sample aliquot (5 mL) was spiked with BMAA-d3 internal standard, subjected to FMOC-Cl derivatization, centrifuged, and analyzed. The high-throughput instrumental method (10 min per sample) involved on-line pre-concentration and desalting coupled to ultra-high-performance liquid chromatography high-resolution mass spectrometry (UHPLC-HRMS). Chromatographic gradient and mobile phases were adjusted to obtain suitable separation of the 4 isomers. The method limits of detection were in the range of 2–5 ng L-1. In-matrix validation parameters including linearity range, accuracy, precision, and matrix effects were assessed. The method was applied to surface water samples (n = 82) collected at a large spatial scale in lakes and rivers in Canada. DAB was found in >70% of samples at variable concentrations (<3–1,900 ng L-1), the highest concentrations corresponding to lake samples in cyanobacterial bloom periods. BMAA was only reported (110 ng L-1) at one HAB-impacted location. This is one of the first studies to report on the profiles of AEG, BAMA, DAB, and BMAA in background and impacted surface waters.
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Affiliation(s)
- Sung Vo Duy
- Department of Chemistry, Université de Montréal, Montréal, Quebec, Canada
| | - Gabriel Munoz
- Department of Chemistry, Université de Montréal, Montréal, Quebec, Canada
| | - Quoc Tuc Dinh
- Department of Chemistry, Université de Montréal, Montréal, Quebec, Canada
| | - Dat Tien Do
- Department of Chemistry, Université de Montréal, Montréal, Quebec, Canada
| | - Dana F. Simon
- Department of Chemistry, Université de Montréal, Montréal, Quebec, Canada
| | - Sébastien Sauvé
- Department of Chemistry, Université de Montréal, Montréal, Quebec, Canada
- * E-mail:
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15
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Pérez-Míguez R, Salido-Fortuna S, Castro-Puyana M, Marina ML. Advances in the Determination of Nonprotein Amino Acids in Foods and Biological Samples by Capillary Electrophoresis. Crit Rev Anal Chem 2019; 49:459-475. [DOI: 10.1080/10408347.2018.1546113] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Raquel Pérez-Míguez
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - Sandra Salido-Fortuna
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - María Castro-Puyana
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Química “Andrés M. del Río” (IQAR), Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
| | - María Luisa Marina
- Departamento de Química Analítica, Química Física e Ingeniería Química, Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
- Instituto de Investigación Química “Andrés M. del Río” (IQAR), Universidad de Alcalá, Alcalá de Henares, Madrid, Spain
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16
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Rutkowska M, Płotka-Wasylka J, Majchrzak T, Wojnowski W, Mazur-Marzec H, Namieśnik J. Recent trends in determination of neurotoxins in aquatic environmental samples. Trends Analyt Chem 2019. [DOI: 10.1016/j.trac.2019.01.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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17
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Stolz A, Jooß K, Höcker O, Römer J, Schlecht J, Neusüß C. Recent advances in capillary electrophoresis-mass spectrometry: Instrumentation, methodology and applications. Electrophoresis 2018; 40:79-112. [PMID: 30260009 DOI: 10.1002/elps.201800331] [Citation(s) in RCA: 110] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/14/2022]
Abstract
Capillary electrophoresis (CE) offers fast and high-resolution separation of charged analytes from small injection volumes. Coupled to mass spectrometry (MS), it represents a powerful analytical technique providing (exact) mass information and enables molecular characterization based on fragmentation. Although hyphenation of CE and MS is not straightforward, much emphasis has been placed on enabling efficient ionization and user-friendly coupling. Though several interfaces are now commercially available, research on more efficient and robust interfacing with nano-electrospray ionization (ESI), matrix-assisted laser desorption/ionization (MALDI) and inductively coupled plasma mass spectrometry (ICP) continues with considerable results. At the same time, CE-MS has been used in many fields, predominantly for the analysis of proteins, peptides and metabolites. This review belongs to a series of regularly published articles, summarizing 248 articles covering the time between June 2016 and May 2018. Latest developments on hyphenation of CE with MS as well as instrumental developments such as two-dimensional separation systems with MS detection are mentioned. Furthermore, applications of various CE-modes including capillary zone electrophoresis (CZE), nonaqueous capillary electrophoresis (NACE), capillary gel electrophoresis (CGE) and capillary isoelectric focusing (CIEF) coupled to MS in biological, pharmaceutical and environmental research are summarized.
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Affiliation(s)
| | - Kevin Jooß
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Research Unit Analytical BioGeoChemistry, Helmholtz Zentrum München, Neuherberg, Germany
| | - Oliver Höcker
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Instrumental Analytical Chemistry, University of Duisburg-Essen, Essen, Germany
| | - Jennifer Römer
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Institute of Analytical Chemistry, Chemo- and Biosensors, University of Regensburg, Regensburg, Germany
| | - Johannes Schlecht
- Faculty of Chemistry, Aalen University, Aalen, Germany.,Department of Pharmaceutical/Medicinal Chemistry, Friedrich Schiller University, Jena, Germany
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18
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Breadmore MC, Grochocki W, Kalsoom U, Alves MN, Phung SC, Rokh MT, Cabot JM, Ghiasvand A, Li F, Shallan AI, Keyon ASA, Alhusban AA, See HH, Wuethrich A, Dawod M, Quirino JP. Recent advances in enhancing the sensitivity of electrophoresis and electrochromatography in capillaries and microchips (2016-2018). Electrophoresis 2018; 40:17-39. [PMID: 30362581 DOI: 10.1002/elps.201800384] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2018] [Revised: 10/15/2018] [Accepted: 10/16/2018] [Indexed: 12/22/2022]
Abstract
One of the most cited limitations of capillary and microchip electrophoresis is the poor sensitivity. This review continues to update this series of biannual reviews, first published in Electrophoresis in 2007, on developments in the field of online/in-line concentration methods in capillaries and microchips, covering the period July 2016-June 2018. It includes developments in the field of stacking, covering all methods from field-amplified sample stacking and large-volume sample stacking, through to isotachophoresis, dynamic pH junction, and sweeping. Attention is also given to online or in-line extraction methods that have been used for electrophoresis.
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Affiliation(s)
- Michael C Breadmore
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | - Wojciech Grochocki
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdansk, Gdansk, Poland
| | - Umme Kalsoom
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, College of Science and Technology, University of Tasmania, Hobart, Australia
| | - Mónica N Alves
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | - Sui Ching Phung
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | | | - Joan M Cabot
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,ARC Centre of Excellence for Electromaterials Science (ACES), School of Natural Sciences, College of Science and Technology, University of Tasmania, Hobart, Australia
| | - Alireza Ghiasvand
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia.,Department of Chemistry, Lorestan University, Khoramabad, Iran
| | - Feng Li
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
| | - Aliaa I Shallan
- Future Industries Institute (FII), University of South Australia, Mawson Lakes, Australia.,Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy, Helwan University, Cairo, Egypt
| | - Aemi S Abdul Keyon
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Ala A Alhusban
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Hong Heng See
- Department of Chemistry, Faculty of Science, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia.,Centre for Sustainable Nanomaterials, Ibnu Sina Institute for Scientific and Industrial Research, Universiti Teknologi Malaysia, Johor Bahru, Johor, Malaysia
| | - Alain Wuethrich
- Centre for Personalized Nanomedicine, Australian Institute for Bioengineering and Nanotechnology (AIBN), The University of Queensland, Brisbane, QLD, Australia
| | - Mohamed Dawod
- Department of Chemistry, University of Michigan, Ann Arbor, MI, USA
| | - Joselito P Quirino
- Australian Centre for Research on Separation Science, Chemistry, School of Natural Science, University of Tasmania, Hobart, Tasmania, Australia
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19
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Ubiquity of the neurotoxin β-N-methylamino-L-alanine and its isomers confirmed by two different mass spectrometric methods in diverse marine mollusks. Toxicon 2018; 151:129-136. [DOI: 10.1016/j.toxicon.2018.07.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2018] [Revised: 05/24/2018] [Accepted: 07/05/2018] [Indexed: 12/11/2022]
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20
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Šlampová A, Malá Z, Gebauer P. Recent progress of sample stacking in capillary electrophoresis (2016-2018). Electrophoresis 2018; 40:40-54. [PMID: 30073675 DOI: 10.1002/elps.201800261] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 07/31/2018] [Accepted: 07/31/2018] [Indexed: 01/03/2023]
Abstract
Electrophoretic sample stacking comprises a group of capillary electrophoretic techniques where trace analytes from the sample are concentrated into a short zone (stack). This paper is a continuation of our previous reviews on the topic and brings a survey of more than 120 papers published approximately since the second quarter of 2016 till the first quarter of 2018. It is organized according to the particular stacking principles and includes chapters on concentration adjustment (Kohlrausch) stacking, on stacking techniques based on pH changes, on stacking in electrokinetic chromatography and on other stacking techniques. Where available, explicit information is given about the procedure, electrolyte(s) used, detector employed and sensitivity reached. Not reviewed are papers on transient isotachophoresis which are covered by another review in this issue.
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Affiliation(s)
- Andrea Šlampová
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno, Czech Republic
| | - Zdena Malá
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno, Czech Republic
| | - Petr Gebauer
- Institute of Analytical Chemistry of the Czech Academy of Sciences, Brno, Czech Republic
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21
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Foss AJ, Chernoff N, Aubel MT. The analysis of underivatized β-Methylamino-L-alanine (BMAA), BAMA, AEG & 2,4-DAB in Pteropus mariannus mariannus specimens using HILIC-LC-MS/MS. Toxicon 2018; 152:150-159. [PMID: 30102919 DOI: 10.1016/j.toxicon.2018.07.028] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Revised: 07/25/2018] [Accepted: 07/31/2018] [Indexed: 01/05/2023]
Abstract
β-Methylamino-L-alanine (BMAA) has been identified as the potential cause of the amyotrophic lateral sclerosis/parkinsonism-dementia complex (ALS/PDC) observed in the Chamorro people of Guam. The principal hypothesis for BMAA exposure and intoxication relies on the biomagnification of BMAA in flying fox specimens ingested by the Chamorro people. Although high levels of BMAA were quantitated in flying fox specimens utilizing liquid chromatography-fluorescence (LC-FL), there have not been any confirmatory analyses conducted to date. Therefore, a method for the tissue homogenization, extraction and direct analysis of BMAA (including BAMA, 2,4-DAB and AEG) was utilized. The approach was applied to mammalian dried skin and hair from various rodent species (negative controls) and archived flying fox (Pteropus mariannus mariannus) specimens. A positive control sample of homogenized mussel (Mytelius edulis) with native BMAA was used to verify the method. It was determined that the direct analysis using HILIC MS/MS required additional quality control in order to allow for the confident identification of BMAA due to the near co-elution of BAMA. BMAA was not present above 0.2 μg g-1 (free fraction) or 2.8 μg g-1 (total fraction) in the flying fox specimens. While analysis did not result in BMAA detection in flying fox or negative control samples, the positive control sample and spiked samples were successfully detected.
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Affiliation(s)
- Amanda J Foss
- GreenWater Laboratories/CyanoLab, 205 Zeagler Drive, Palatka, FL, 32177, USA.
| | - Neil Chernoff
- Developmental Biology Division, National Health and Environmental Effects Research Lab, Office of Research and Development, US Environmental Protection Agency, Research Triangle Park, NC, 27709, USA
| | - Mark T Aubel
- GreenWater Laboratories/CyanoLab, 205 Zeagler Drive, Palatka, FL, 32177, USA
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22
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Beach DG, Kerrin ES, Thomas K, Quilliam MA, McCarron P. Capillary electrophoresis-tandem mass spectrometry for multiclass analysis of polar marine toxins. Anal Bioanal Chem 2018; 410:5405-5420. [PMID: 29767301 DOI: 10.1007/s00216-018-1089-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2018] [Revised: 04/06/2018] [Accepted: 04/13/2018] [Indexed: 01/02/2023]
Abstract
Polar marine toxins are more challenging to analyze by mass spectrometry-based methods than lipophilic marine toxins, which are now routinely measured in shellfish by multiclass reversed-phase liquid chromatography-tandem mass spectrometry (MS/MS) methods. Capillary electrophoresis (CE)-MS/MS is a technique that is well suited for the analysis of polar marine toxins, and has the potential of providing very high resolution separation. Here, we present a CE-MS/MS method developed, with use of a custom-built interface, for the sensitive multiclass analysis of paralytic shellfish toxins, tetrodotoxins, and domoic acid in seafood. A novel, highly acidic background electrolyte (5 M formic acid) was designed to maximize protonation of analytes and to allow a high degree of sample stacking to improve the limits of detection. The method was applied to a wide range of regulated and less common toxin analogues, and exhibited a high degree of selectivity between toxin isomers and matrix interference. The limits of detection in mussel tissue were 0.0052 mg/kg for tetrodotoxins, 0.160 mg/kg for domoic acid, and between 0.0018 and 0.120 mg/kg for paralytic shellfish toxins, all of which showed good linearity. Minimal ionization suppression was observed when the response from neat and mussel-matrix-matched standards was corrected with multiple internal standards. Analysis of shellfish matrix reference materials and spiked samples demonstrated good accuracy and precision. Finally, the method was transferred to a commercial CE-MS/MS system to demonstrate its widespread applicability for use in both R & D and routine regulatory settings. The approach of using a highly acidic background electrolyte is of broad interest, and can be considered generally applicable to simultaneous analysis of other classes of small, polar molecules with differing pKa values. Graphical abstract ᅟ.
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Affiliation(s)
- Daniel G Beach
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St, Halifax, NS, B3H 3Z1, Canada.
| | - Elliott S Kerrin
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St, Halifax, NS, B3H 3Z1, Canada
| | - Krista Thomas
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St, Halifax, NS, B3H 3Z1, Canada
| | - Michael A Quilliam
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St, Halifax, NS, B3H 3Z1, Canada
| | - Pearse McCarron
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St, Halifax, NS, B3H 3Z1, Canada
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23
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Huang Z, Liu Q, Peng Y, Dai J, Xie Y, Chen W, Long S, Pei Z, Su H, Yao X. Circadian Rhythm Dysfunction Accelerates Disease Progression in a Mouse Model With Amyotrophic Lateral Sclerosis. Front Neurol 2018; 9:218. [PMID: 29740382 PMCID: PMC5928145 DOI: 10.3389/fneur.2018.00218] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2017] [Accepted: 03/21/2018] [Indexed: 12/12/2022] Open
Abstract
Amyotrophic lateral sclerosis (ALS) is a fatal neurodegenerative disease caused by interactions between environmental factors and genetic susceptibility. Circadian rhythm dysfunction (CRD) is a significant contributor to neurodegenerative conditions such as Alzheimer’s disease and Parkinson’s disease. However, whether CRD contributes to the progression of ALS remains little known. We performed behavioral and physiological tests on SOD1G93A ALS model mice with and without artificially induced CRD, and on wild-type controls; we also analyzed spinal cord samples histologically for differences between groups. We found that CRD accelerated the disease onset and progression of ALS in model mice, as demonstrated by aggravated functional deficits and weight loss, as well as increased motor neuron loss, activated gliosis, and nuclear factor κB-mediated inflammation in the spinal cord. We also found an increasing abundance of enteric cyanobacteria in the ALS model mice shortly after disease onset that was further enhanced by CRD. Our study provides initial evidence on the CRD as a risk factor for ALS, and intestinal cyanobacteria may be involved.
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Affiliation(s)
- Zhilin Huang
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, Guangdong Key Clinical Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Qiang Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Yu Peng
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Jiaying Dai
- Comprehensive Department, Sun Yat-sen Memorial Hospital affiliated to Sun Yat-sen University, Guangzhou, China
| | - Youna Xie
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, Guangdong Key Clinical Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Weineng Chen
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, Guangdong Key Clinical Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Simei Long
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, Guangdong Key Clinical Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhong Pei
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, Guangdong Key Clinical Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Huanxing Su
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao, China
| | - Xiaoli Yao
- Department of Neurology, National Key Clinical Department and Key Discipline of Neurology, Guangdong Key Clinical Laboratory for Diagnosis and Treatment of Major Neurological Diseases, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
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24
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Beri J, Kirkwood KI, Muddiman DC, Bereman MS. A novel integrated strategy for the detection and quantification of the neurotoxin β-N-methylamino-L-alanine in environmental samples. Anal Bioanal Chem 2018; 410:2597-2605. [PMID: 29455280 DOI: 10.1007/s00216-018-0930-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Revised: 01/18/2018] [Accepted: 01/30/2018] [Indexed: 11/26/2022]
Abstract
We describe a set of new tools for the detection and quantification of β-N-methylamino-L-alanine (BMAA) which includes a novel stable isotope-labeled BMAA standard (13C3,15N2) and a chip-based capillary electrophoresis mass spectrometry platform for separation and detection. Baseline resolution of BMAA from its potentially confounding structural isomers N-2-aminoethylglycine (AEG) and 2,4-diaminobutyric acid (2,4-DAB) is achieved using the chip-based CE-MS system in less than 1 min. Detection and linearity of response are demonstrated across > 3.5 orders of dynamic range using parallel reaction monitoring (PRM). The lower limit of detection and quantification were calculated for BMAA detection at 40 nM (4.8 ng/mL) and 400 nM (48 ng/mL), respectively. Finally, the strategy was applied to detect BMAA in seafood samples purchased at a local market in Raleigh, NC where their harvest location was known. BMAA was detected in a sea scallop sample. Because the BMAA/stable isotope-labeled 13C3,15N2-BMAA (SIL-BMAA) ratio in the scallop sample was below the limit of quantification, a semiquantitative analysis of BMAA content was carried out, and BMAA content was estimated to be approximately 820 ng BMAA/1 g of wet scallop tissue. Identification was verified by high mass measurement accuracy of precursor (< 5 ppm) and product ions (< 10 ppm), comigration with SIL-BMAA spike-in standard, and conservation of ion abundance ratios for product ions between BMAA and SIL-BMAA. Interestingly, BMAA was not identified in the free protein fraction but only detected after protein hydrolysis which suggests that BMAA is tightly bound by and/or incorporated into proteins. Graphical abstract Utilization of novel 13C3,15N2-BMAA and chip-based CE-MS/MS for detection and quantification of BMAA in environmental samples.
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Affiliation(s)
- Joshua Beri
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - Kaylie I Kirkwood
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
| | - David C Muddiman
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA
- Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, 27695, USA
| | - Michael S Bereman
- Department of Chemistry, North Carolina State University, Raleigh, NC, 27695, USA.
- Center for Human Health and the Environment, North Carolina State University, Raleigh, NC, 27695, USA.
- Department of Biological Sciences, North Carolina State University, Raleigh, NC, 27695, USA.
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25
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Beach DG, Kerrin ES, Giddings SD, Quilliam MA, McCarron P. Differential Mobility-Mass Spectrometry Double Spike Isotope Dilution Study of Release of β-Methylaminoalanine and Proteinogenic Amino Acids during Biological Sample Hydrolysis. Sci Rep 2018; 8:117. [PMID: 29311581 PMCID: PMC5758758 DOI: 10.1038/s41598-017-18392-w] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2017] [Accepted: 11/16/2017] [Indexed: 12/12/2022] Open
Abstract
The non-protein amino acid β-methylamino-L-alanine (BMAA) has been linked to neurodegenerative disease and reported throughout the environment. Proposed mechanisms of bioaccumulation, trophic transfer and chronic toxicity of BMAA rely on the hypothesis of protein misincorporation. Poorly selective methods for BMAA analysis have led to controversy. Here, a recently reported highly selective method for BMAA quantitation using hydrophilic interaction liquid chromatography-differential mobility spectrometry-tandem mass spectrometry (HILIC-DMS-MS/MS) is expanded to include proteinogenic amino acids from hydrolyzed biological samples. For BMAA quantitation, we present a double spiking isotope dilution approach using D3-BMAA and 13C15N2-BMAA. These methods were applied to study release of BMAA during acid hydrolysis under a variety of conditions, revealing that the majority of BMAA can be extracted along with only a small proportion of protein. A time course hydrolysis of BMAA from mussel tissue was carried out to assess the recovery of BMAA during sample preparation. The majority of BMAA measured by typical methods was released before a significant proportion of protein was hydrolyzed. Little change was observed in protein hydrolysis beyond typical hydrolysis times but the concentration of BMAA increased linearly. These findings demonstrate protein misincorporation is not the predominant form of BMAA in cycad and shellfish.
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Affiliation(s)
- Daniel G Beach
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St., Halifax, NS, B3H 3Z1, Canada.
| | - Elliott S Kerrin
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St., Halifax, NS, B3H 3Z1, Canada
| | - Sabrina D Giddings
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St., Halifax, NS, B3H 3Z1, Canada
| | - Michael A Quilliam
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St., Halifax, NS, B3H 3Z1, Canada
| | - Pearse McCarron
- Measurement Science and Standards, National Research Council Canada, 1411 Oxford St., Halifax, NS, B3H 3Z1, Canada
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26
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Nunn PB. 50 years of research on α-amino-β-methylaminopropionic acid (β-methylaminoalanine). PHYTOCHEMISTRY 2017; 144:271-281. [PMID: 29102875 DOI: 10.1016/j.phytochem.2017.10.002] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 10/10/2017] [Accepted: 10/13/2017] [Indexed: 06/07/2023]
Abstract
The isolation of α-amino-β-methylaminopropionic acid from seeds of Cycas circinalis (now C. micronesica Hill) resulted from a purposeful attempt to establish the cause of the profound neurological disease, amyotrophic lateral sclerosis/parkinsonism/dementia, that existed in high frequency amongst the inhabitants of the western Pacific island of Guam (Guam ALS/PD). In the 50 years since its discovery the amino acid has been a stimulus, and sometimes a subject of mockery, for generations of scientists in a remarkably diverse range of subject areas. The number of citations of the original paper has risen in the five decades from a few to 120 within the decade 2007-2016 and continues at a high rate into the next decade. The reasons for this remarkable outcome are discussed and examples from the literature are used to illustrate the wide range of scientific interest that the original paper generated.
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Affiliation(s)
- Peter B Nunn
- School of Pharmacy and Biomedical Sciences, University of Portsmouth, St Michael's Building, White Swan Road, Portsmouth, Hampshire PO1 2DT, UK.
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27
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González-Ruiz V, Codesido S, Rudaz S, Schappler J. Evolution in the design of a low sheath-flow interface for CE-MS and application to biological samples. Electrophoresis 2017; 39:853-861. [DOI: 10.1002/elps.201700328] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Revised: 10/20/2017] [Accepted: 10/21/2017] [Indexed: 12/14/2022]
Affiliation(s)
- Víctor González-Ruiz
- School of Pharmaceutical Sciences, University of Geneva; University of Lausanne; Geneva Switzerland
| | | | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva; University of Lausanne; Geneva Switzerland
| | - Julie Schappler
- School of Pharmaceutical Sciences, University of Geneva; University of Lausanne; Geneva Switzerland
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28
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Regueiro J, Negreira N, Carreira-Casais A, Pérez-Lamela C, Simal-Gándara J. Dietary exposure and neurotoxicity of the environmental free and bound toxin β- N -methylamino- l -alanine. Food Res Int 2017; 100:1-13. [DOI: 10.1016/j.foodres.2017.07.033] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Revised: 07/14/2017] [Accepted: 07/16/2017] [Indexed: 10/19/2022]
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29
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Poinsot V, Ong-Meang V, Ric A, Gavard P, Perquis L, Couderc F. Recent advances in amino acid analysis by capillary electromigration methods: June 2015-May 2017. Electrophoresis 2017; 39:190-208. [PMID: 28805963 DOI: 10.1002/elps.201700270] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/28/2017] [Accepted: 07/31/2017] [Indexed: 12/13/2022]
Abstract
In the tenth edition of this article focused on recent advances in amino acid analysis using capillary electrophoresis, we describe the most important research articles published on this topic during the period from June 2015 to May 2017. This article follows the format of the previous articles published in Electrophoresis. The new developments in amino acid analysis with CE mainly describe improvements in CE associated with mass spectrometry. Focusing on applications, we mostly describe clinical works, although metabolomics studies are also very important. Finally, works focusing on amino acids in food and agricultural applications are also described.
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Affiliation(s)
- Véréna Poinsot
- Laboratoire des IMRCP, Université Paul Sabatier, Université de Toulouse, France
| | | | - Audrey Ric
- Laboratoire des IMRCP, Université Paul Sabatier, Université de Toulouse, France
| | - Pierre Gavard
- Laboratoire des IMRCP, Université Paul Sabatier, Université de Toulouse, France
| | - Lucie Perquis
- Laboratoire des IMRCP, Université Paul Sabatier, Université de Toulouse, France
| | - François Couderc
- Laboratoire des IMRCP, Université Paul Sabatier, Université de Toulouse, France
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KAWAI T. Recent Studies on Online Sample Preconcentration Methods inCapillary Electrophoresis Coupled with Mass Spectrometry. CHROMATOGRAPHY 2017. [DOI: 10.15583/jpchrom.2017.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Affiliation(s)
- Takayuki KAWAI
- Quantitative Biology Center, RIKEN
- Japan Science and Technology Agency, PRESTO
- Graduate School of Frontier Biosciences, Osaka University
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