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Ribeiro LF, Babadopulos T, de Oliveira MG, Nishimaru F, Zatz R, Elias RM, Moraes O, Moraes E, Peterson LW, De Nucci G. An LC-MS/MS method for the simultaneous determination of 6-cyanodopamine, 6-nitrodopamine, 6-nitrodopa, 6-nitroadrenaline and 6-bromodopamine in human plasma and its clinical application in patients with chronic kidney disease. Biomed Chromatogr 2024:e5896. [PMID: 38797868 DOI: 10.1002/bmc.5896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/22/2024] [Accepted: 05/06/2024] [Indexed: 05/29/2024]
Abstract
The aim of this study was to develop a high-performance liquid chromatography-tandem mass spectrometry method for the determination of 6-cyanodopamine, 6-nitrodopamine, 6-nitrodopa, 6-nitroadrenaline and 6-bromodopamine in human plasma samples. Strata-X 33 μm solid-phase extraction cartridges were used for the extraction of the catecholamines from human plasma samples. The catecholamines were separated in a 150 × 3 mm Shim-pack GIST C18-AQ column with 3 μm particle size, placed in an oven at 40°C and perfused with 82% mobile phase A (acetonitrile-H2O; 90:10, v/v) + 0.4% acetic acid and 18% mobile phase B (deionized H2O) + 0.2% formic acid at a flow rate of 340 μl/min in isocratic mode. The injected volume was 4 μl and the run lasted 4 min. The method was linear from 0.1 to 20 ng/ml and the lower limit of quantification was 0.1 ng/ml for all analytes. The method was applied to evaluate the plasma levels of catecholamines in plasma of patients with chronic kidney disease and allowed the detection for the first time of circulating levels of the novel catecholamines 6-bromodopamine and 6-cyanodopamine.
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Affiliation(s)
- Luiz Fernando Ribeiro
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | - Tainah Babadopulos
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
| | - Mariana G de Oliveira
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | | | - Roberto Zatz
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Rosilene Motta Elias
- Division of Nephrology, Department of Internal Medicine, Faculty of Medicine, University of São Paulo, São Paulo, SP, Brazil
| | - Odorico Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | - Elisabete Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
| | | | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, State University of Campinas, Campinas, SP, Brazil
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará, Fortaleza, CE, Brazil
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, SP, Brazil
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Ding X, Liu C, Yu W, Liu Z. Magnetic ionic liquid-based liquid-liquid microextraction followed by ultra-performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry for simultaneous determination of neurotransmitters in human cerebrospinal fluid and plasma. Talanta 2023; 262:124690. [PMID: 37229812 DOI: 10.1016/j.talanta.2023.124690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 05/04/2023] [Accepted: 05/17/2023] [Indexed: 05/27/2023]
Abstract
A green, efficient and easy sample pretreatment method of magnetic ionic liquid-based liquid-liquid microextraction (MIL-based LLME) combined with a sensitive, rapid and precise analytical method of ultra-performance liquid chromatography coupled with triple-quadrupole tandem mass spectrometry (UPLC-QqQ/MS2) was developed to simultaneously - determining of neurotransmitters (NTs) in biosamples. Two magnetic ionic liquids (MILs), [P6,6,6,14]3[GdCl6] and [P6,6,6,14]2[CoCl4] tested, and the latter was selected as the extraction solvent due to its advantages of visual recognition, paramagnetic behavior and higher extraction efficiency. Facile magnetic separation of MIL containing analytes from matrix was realized by applying external magnetic field without rather than centrifugation. Experimental parameters that would influence the extraction efficiency, including type and amount of MIL, extraction time, speed of the vortex process, salt concentration, and environmental pH, were optimized obtained. The proposed method was successfully applied to the simultaneous extraction and determination of 20 NTs in human cerebrospinal fluid and plasma samples. Excellent analytical performance indicates the broad potential of this method for clinical diagnosis and therapy of neurological diseases.
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Affiliation(s)
- Xiangdong Ding
- Department of Plastic and reconstructive Microsurgery, China-Japan Union Hospital, Jilin University, Xiantai Street 126, Changchun, 130033, PR China
| | - Chao Liu
- Department of Medical Cosmetology, South China Hospital, Medical School, Shenzhen University, Shenzhen, 518116, PR China
| | - Wei Yu
- Department of Plastic and reconstructive Microsurgery, China-Japan Union Hospital, Jilin University, Xiantai Street 126, Changchun, 130033, PR China.
| | - Zhongling Liu
- China-Japan Union Hospital, Jilin University, Xiantai Street 126, Changchun, 130033, PR China.
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3
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Hydrophilic Interaction Chromatography. SEPARATIONS 2023. [DOI: 10.3390/separations10020120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023] Open
Abstract
Hydrophilic interaction chromatography (HILIC) was first introduced by Alpert in 1990 [...]
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Boulghobra A, Bonose M. Quantification of Monoamine Neurotransmitter Metabolites and Cofactors in Cerebrospinal Fluid: State-of-the-Art. Crit Rev Anal Chem 2022:1-16. [PMID: 36476251 DOI: 10.1080/10408347.2022.2151833] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Inborn errors of monoamine neurotransmitter metabolism are rare diseases characterized by nonspecific neurological symptoms. These symptoms appear in early childhood and correspond to movement disorders, epilepsy, sleep disorders and/or mental disability. Cerebrospinal fluid biomarkers have been identified and validated to allow specific diagnosis of these diseases. Biomarkers of inborn errors of monoamine neurotransmitter metabolites are divided in two groups: monoamine neurotransmitter metabolites and pterins. Biomarkers quantification in cerebrospinal fluid is based on high-performance liquid chromatography separation coupled to electrochemical detection, fluorescence detection, or mass spectrometry. The following article reviews the advances in the proposed routine methods for the measurement of these analytes in cerebrospinal fluid. The purpose of this review is to compare the various proposed methods in terms of sample preparation, chromatographic conditions and detection modes. Despite the broad range of proposed methods, quantification of inborn errors of monoamine neurotransmitter biomarkers remains a great challenge, given the complexity of biological fluids and the low amounts of analytes that are present in cerebrospinal fluid.
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Affiliation(s)
- Ayoub Boulghobra
- Institut de Chimie Physique, Université Paris-Saclay, CNRS, UMR8000, 91405 Orsay, France
| | - Myriam Bonose
- Institut de Chimie Physique, Université Paris-Saclay, CNRS, UMR8000, 91405 Orsay, France
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Hu C, Jia W, Liu Y, Wang Y, Zhang P, Chen H, Huang S. Single‐Molecule Sensing of Acidic Catecholamine Metabolites Using a Programmable Nanopore. Chemistry 2022; 28:e202201033. [DOI: 10.1002/chem.202201033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Indexed: 11/05/2022]
Affiliation(s)
- Chengzhen Hu
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Wendong Jia
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Yao Liu
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Yuqin Wang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
| | - Panke Zhang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
| | - Hong‐Yuan Chen
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
| | - Shuo Huang
- State Key Laboratory of Analytical Chemistry for Life Sciences School of Chemistry and Chemical Engineering Nanjing University 210023 Nanjing China
- Chemistry and Biomedicine Innovation Center (ChemBIC) Nanjing University 210023 Nanjing China
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6
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Guérineau NC, Campos P, Le Tissier PR, Hodson DJ, Mollard P. Cell Networks in Endocrine/Neuroendocrine Gland Function. Compr Physiol 2022; 12:3371-3415. [PMID: 35578964 DOI: 10.1002/cphy.c210031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Reproduction, growth, stress, and metabolism are determined by endocrine/neuroendocrine systems that regulate circulating hormone concentrations. All these systems generate rhythms and changes in hormone pulsatility observed in a variety of pathophysiological states. Thus, the output of endocrine/neuroendocrine systems must be regulated within a narrow window of effective hormone concentrations but must also maintain a capacity for plasticity to respond to changing physiological demands. Remarkably most endocrinologists still have a "textbook" view of endocrine gland organization which has emanated from 20th century histological studies on thin 2D tissue sections. However, 21st -century technological advances, including in-depth 3D imaging of specific cell types have vastly changed our knowledge. We now know that various levels of multicellular organization can be found across different glands, that organizational motifs can vary between species and can be modified to enhance or decrease hormonal release. This article focuses on how the organization of cells regulates hormone output using three endocrine/neuroendocrine glands that present different levels of organization and complexity: the adrenal medulla, with a single neuroendocrine cell type; the anterior pituitary, with multiple intermingled cell types; and the pancreas with multiple intermingled cell types organized into distinct functional units. We give an overview of recent methodologies that allow the study of the different components within endocrine systems, particularly their temporal and spatial relationships. We believe the emerging findings about network organization, and its impact on hormone secretion, are crucial to understanding how homeostatic regulation of endocrine axes is carried out within endocrine organs themselves. © 2022 American Physiological Society. Compr Physiol 12:3371-3415, 2022.
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Affiliation(s)
| | - Pauline Campos
- College of Engineering, Mathematics and Physical Sciences, University of Exeter, Exeter, UK
| | - Paul R Le Tissier
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, Scotland, UK
| | - David J Hodson
- Institute of Metabolism and Systems Research (IMSR), University of Birmingham, Edgbaston, UK.,Centre for Endocrinology, Diabetes and Metabolism, Birmingham Health Partners, Birmingham, UK.,COMPARE University of Birmingham and University of Nottingham Midlands, UK.,Oxford Centre for Diabetes, Endocrinology and Metabolism (OCDEM), NIHR Oxford Biomedical Research Centre, Churchill Hospital, Radcliffe Department of Medicine, University of Oxford, Oxford, UK
| | - Patrice Mollard
- IGF, University of Montpellier, CNRS, INSERM, Montpellier, France
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Li D, Tang N, Wang Y, Zhang Z, Ding Y, Tian X. Efficient synthesis of boronate affinity-based catecholamine-imprinted magnetic nanomaterials for trace analysis of catecholamine in human urine. NEW J CHEM 2022. [DOI: 10.1039/d2nj02552c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Catecholamines, a class of cis-diol-containing compounds, play a major role in the central nervous system.
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Affiliation(s)
- Daojin Li
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Na Tang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Yipei Wang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Zixin Zhang
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Yihan Ding
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
| | - Xiping Tian
- College of Chemistry and Chemical Engineering, and Henan Key Laboratory of Function-Oriented Porous Materials, Luoyang Normal University, Luoyang 471022, P. R. China
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8
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Chen C, Wang C, Zhao P, Zhang J, Ma D, Fei J. Determination of dopamine based on a temperature-sensitive PMEO 2MA and Au@rGO-MWCNT nanocomposite-modified electrode. Analyst 2021; 147:303-311. [PMID: 34913448 DOI: 10.1039/d1an02134f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
First, the nanocomposite Au@rGO-MWCNT was synthesized by a hydrothermal method. Next, a temperature-controlled composite sensing film was prepared by composite modification of poly(2-(2-methoxyethoxy)ethyl methacrylate) (PMEO2MA) and Au@rGO-MWCNT on a glassy carbon electrode (GCE). This sensor was shown to exhibit good temperature sensitivity and reversibility to dopamine. When the testing temperature is lower than the lower critical solution temperature (LCST) of the polymer, the PMEO2MA chain is in a stretched state, which increases the distance between the Au@rGO layers and leads to the inability of MWCNTs in one layer to contact another Au@rGO layer and to low conductivity. Therefore, in this state, dopamine cannot detect an electrochemical signal, and it is termed an "off" state. When the temperature is higher than the LCST of the polymer, the PMEO2MA chain shrinks, allowing the MWCNTs to make contact with another layer of Au@rGO; the electron transfer rate of the modified film increases, and the electrochemical behavior of dopamine turns to an "on" state. Moreover, the sensor has a wide detection range (0.1 to 9.0 μM and 9.0 to 239.0 μM), and the limit of detection of dopamine is as low as 30 nM. This method has been successfully applied to the determination of dopamine in human serum samples. The on-off sensor provides a new avenue for the application of temperature-sensitive polymers.
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Affiliation(s)
- Chao Chen
- School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, People's Republic of China. .,Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China.
| | - Chenxi Wang
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China. .,Key Laboratory of Environmentally Friendly Chemistry and Applications of Ministry of Education, College of Chemistry, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Pengcheng Zhao
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China. .,Key Laboratory for Green Organic Synthesis and Application of Hunan Province, Xiangtan University, Xiangtan 411105, People's Republic of China
| | - Jin Zhang
- School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, People's Republic of China.
| | - Dechong Ma
- School of Materials and Chemical Engineering, Hunan City University, Yiyang 413000, People's Republic of China.
| | - Junjie Fei
- Hunan Institute of Advanced Sensing and Information Technology, Xiangtan University, Xiangtan 411105, People's Republic of China.
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Quantitation of plasma metanephrines using isotope dilution liquid chromatography tandem mass spectrometry (ID-LC/MS/MS): a candidate reference measurement procedure and its application to evaluating routine ID-LC/MS/MS methods. Anal Bioanal Chem 2021; 413:7509-7520. [PMID: 34643770 DOI: 10.1007/s00216-021-03715-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2021] [Revised: 09/16/2021] [Accepted: 10/01/2021] [Indexed: 10/20/2022]
Abstract
Accurate measurement of plasma metanephrines (MNs) including metanephrine (MN) and normetanephrine (NMN) is crucial for the screening and diagnosis in pheochromocytomas and paragangliomas (PPGLs). Although the number of laboratories using liquid chromatography tandem mass spectrometry (LC-MS/MS) method to measure MNs has been increasing rapidly, those laboratory-developed assays showed incomparable results. There are no reference measurement procedures (RMPs) or reference materials (RMs) for MNs in Joint Committee for Traceability in Laboratory Medicine (JCTLM), which hindered the standardization of MNs measurement. We established a candidate RMP (cRMP) based on isotope dilution liquid chromatography tandem mass spectrometry (ID-LC/MS/MS) method for plasma MNs measurement. Plasma samples were spiked with MN-D3 and NMN-D3 as internal standards; protein precipitation and ion-exchange solid phase extraction (SPE) were performed to extract samples, eventually analyzed by LC-MS/MS. The cRMP was applied to evaluate two routine ID-LC/MS/MS methods through split-sample comparisons. Fifty-three individual patient samples were determined by cRMP and two routine ID-LC/MS/MS methods; results were analyzed by ordinary linear regression and Bland-Altman plots. The cRMP exhibited desirable imprecision, with intra-run and total imprecision (coefficient variation, CV) for MN being 0.79-1.36% and 1.53-1.87% and for NMN being 1.10-1.34% and 1.15-1.64%. The analytical recoveries of MN and NMN ranged from 98.3 to 101.7% and from 98.5 to 101.9%, respectively. Significant calibrator biases and sample-specific deviations were observed in method comparison. An accurate, precise, and reliable cRMP for plasma MNs was developed, and RMs with value assigned following the cRMP would help minimize the calibration bias and improve the comparability of different measuring systems.
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Ramu AG, Umar A, Ibrahim AA, Algadi H, Ibrahim YSA, Wang Y, Hanafiah MM, Shanmugam P, Choi D. Synthesis of porous 2D layered nickel oxide-reduced graphene oxide (NiO-rGO) hybrid composite for the efficient electrochemical detection of epinephrine in biological fluid. ENVIRONMENTAL RESEARCH 2021; 200:111366. [PMID: 34029547 DOI: 10.1016/j.envres.2021.111366] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Revised: 05/15/2021] [Accepted: 05/16/2021] [Indexed: 06/12/2023]
Abstract
In the present research work, 2D-Porous NiO decorated graphene nanocomposite was synthesized by hydrothermal method to monitored the concentration of epinephrine (EPI). The morphology (SEM and TEM) results confirmed 2D-Porous NiO nanoparticles firmly attached over graphene nanosheets. FTIR and XPS analysis confirmed the formation of nickel oxide formation and complete reduction of GO to rGO. The electrochemical activity of the proposed NiO-rGO/GCE modified electrode on epinephrine was analyzed by simple cyclic voltammetry technique. The proposed low cost NiO-rGO/GCE modified electrode showed excellent catalytic activity over GCE and rGO/GCE electrodes. Due to its high conductivity and charge transfer ability of the NiO-rGO/GCE modified electrode exhibited high sensitivity of EPI at optimized conditions. The anodic peak current of the EPI linearly increases with increasing the concertation of EPI. A wide linear range (50 μM-1000 μM) was achieved with high correlation coefficient (R2 = 0.9986) and the limit of detection (LOD) of NiO-rGO/GCE modified electrode was calculated to be 10 μM. NiO-rGO/GCE electrode showed good stability and repeatability towards the EPI oxidation. Mainly, the proposed NiO-rGO/GCE modified electrode showed good sensitivity of EPI in the human biological fluid with high recovery percentage. The low cost, NiO-rGO/GCE electrode could be the promising sensor electrode for the detection of Epinephrine in the real samples.
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Affiliation(s)
- A G Ramu
- Department of Materials Science and Engineering, Hongik University, 2639-Sejong- Ro, Jochiwon-eup, Sejong-city, 30016, South Korea
| | - Ahmad Umar
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia; Department of Chemistry, Faculty of Science and Arts, Najran, 11001, Kingdom of Saudi Arabia.
| | - Ahmed A Ibrahim
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia; Department of Chemistry, Faculty of Science and Arts, Najran, 11001, Kingdom of Saudi Arabia
| | - Hassan Algadi
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia; Department of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Kingdom of Saudi Arabia
| | - Yousif S A Ibrahim
- Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Kingdom of Saudi Arabia
| | - Yao Wang
- Guangdong Provincial Key Laboratory of Optical Information Materials and Technology, Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China; National Center for International Research on Green Optoelectronics, South China Normal University, Guangzhou, 510006, PR China
| | - Marlia M Hanafiah
- Department of Earth Sciences and Environment, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600, Bangi UKM, Selangor, Malaysia; Centre for Tropical Climate Change System, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600, Bangi UKM, Selangor, Malaysia
| | - P Shanmugam
- Department of Chemistry, St. Joseph University, Dimapur, Nagaland, India
| | - Dongjin Choi
- Department of Materials Science and Engineering, Hongik University, 2639-Sejong- Ro, Jochiwon-eup, Sejong-city, 30016, South Korea.
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Gallo A, Pillet LE, Verpillot R. New frontiers in Alzheimer's disease diagnostic: Monoamines and their derivatives in biological fluids. Exp Gerontol 2021; 152:111452. [PMID: 34182050 DOI: 10.1016/j.exger.2021.111452] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2020] [Revised: 04/29/2021] [Accepted: 06/08/2021] [Indexed: 10/21/2022]
Abstract
Current diagnosis of Alzheimer's disease (AD) relies on a combination of neuropsychological evaluations, biomarker measurements and brain imaging. Nevertheless, these approaches are either expensive, invasive or lack sensitivity to early AD stages. The main challenge of ongoing research is therefore to identify early non-invasive biomarkers to diagnose AD at preclinical stage. Accumulating evidence support the hypothesis that initial degeneration of profound monoaminergic nuclei may trigger a transneuronal spread of AD pathology towards hippocampus and cortex. These studies aroused great interest on monoamines, i.e. noradrenaline (NA), dopamine (D) ad serotonin (5-HT), as early hallmarks of AD pathology. The present work reviews current literature on the potential role of monoamines and related metabolites as biomarkers of AD. First, morphological changes in the monoaminergic systems during AD are briefly described. Second, we focus on concentration changes of these molecules and their derivatives in biological fluids, including cerebrospinal fluid, obtained by lumbar puncture, and blood or urine, sampled via less invasive procedures. Starting from initial observations, we then discuss recent insights on metabolomics-based analysis, highlighting the promising clinical utility of monoamines for the identification of a molecular AD signature, aimed at improving early diagnosis and discrimination from other dementia.
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Memon R, Memon AA, Nafady A, Sirajuddin, Sherazi STH, Balouch A, Memon K, Brohi NA, Najeeb A. Electrochemical sensing of dopamine via bio-assisted synthesized silver nanoparticles. INTERNATIONAL NANO LETTERS 2021. [DOI: 10.1007/s40089-021-00339-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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13
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Asprusten TT, Sletner L, Wyller VBB. Are there subgroups of chronic fatigue syndrome? An exploratory cluster analysis of biological markers. J Transl Med 2021; 19:48. [PMID: 33516248 PMCID: PMC7847574 DOI: 10.1186/s12967-021-02713-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 01/22/2021] [Indexed: 11/10/2022] Open
Abstract
Background Chronic fatigue syndrome (CFS) is defined according to subjective symptoms only, and several conflicting case definition exist. Previous research has discovered certain biological alterations. The aim of the present study was to explore possible subgroups based on biological markers within a widely defined cohort of adolescent CFS patients and investigate to what extent eventual subgroups are associated with other variables. Methods The Norwegian Study of Chronic Fatigue Syndrome in Adolescents: Pathophysiology and Intervention Trial (NorCAPITAL) has previously performed detailed investigation of immunological, autonomic, neuroendocrine, cognitive and sensory processing functions in an adolescent group of CFS patients recruited according to wide diagnostic criteria. In the present study, hierarchical cluster analyses (Ward’s method) were performed using representative variables from all these domains. Associations between clusters and constitutional factors (including candidate genetic markers), diagnostic criteria, subjective symptoms and prognosis were explored by standard statistical methods. Results A total of 116 patients (26.7% males, mean age 15.4 years) were included. The final cluster analyses revealed six clusters labelled pain tolerant & good cognitions, restored HPA dynamics, orthostatic intolerance, low-grade inflammation, pain intolerant & poor cognitions, and high vagal (parasympathetic) activity, respectively. There was substantial overlap between clusters. The pain intolerant & poor cognitions-cluster was associated with low functional abilities and quality of life, and adherence to the Canada 2003 diagnostic criteria for CFS. No other statistically significant cluster associations were discovered. Conclusion Within a widely defined cohort of adolescent CFS patients, clusters could be delineated, but no distinct subgroups could be identified. Associations between clusters and constitutional factors, subjective symptoms and prognosis were scarce. These results question the clinical usefulness of searching for CFS subgroups, as well as the validity of the most “narrow” CFS diagnostic criteria. Trial registration: Clinical Trials NCT01040429
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Affiliation(s)
- Tarjei Tørre Asprusten
- Department of Paediatric and Adolescent Health, Akershus University Hospital, 1478, Lørenskog, Norway
| | - Line Sletner
- Department of Paediatric and Adolescent Health, Akershus University Hospital, 1478, Lørenskog, Norway
| | - Vegard Bruun Bratholm Wyller
- Department of Paediatric and Adolescent Health, Akershus University Hospital, 1478, Lørenskog, Norway. .,Division of Medicine and Laboratory Sciences, University of Oslo, Oslo, Norway.
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Liquid-Chromatographic Methods for Carboxylic Acids in Biological Samples. Molecules 2020; 25:molecules25214883. [PMID: 33105855 PMCID: PMC7660098 DOI: 10.3390/molecules25214883] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/09/2020] [Accepted: 10/14/2020] [Indexed: 11/25/2022] Open
Abstract
Carboxyl-bearing low-molecular-weight compounds such as keto acids, fatty acids, and other organic acids are involved in a myriad of metabolic pathways owing to their high polarity and solubility in biological fluids. Various disease areas such as cancer, myeloid leukemia, heart disease, liver disease, and lifestyle diseases (obesity and diabetes) were found to be related to certain metabolic pathways and changes in the concentrations of the compounds involved in those pathways. Therefore, the quantification of such compounds provides useful information pertaining to diagnosis, pathological conditions, and disease mechanisms, spurring the development of numerous analytical methods for this purpose. This review article addresses analytical methods for the quantification of carboxylic acids, which were classified into fatty acids, tricarboxylic acid cycle and glycolysis-related compounds, amino acid metabolites, perfluorinated carboxylic acids, α-keto acids and their metabolites, thiazole-containing carboxylic acids, and miscellaneous, in biological samples from 2000 to date. Methods involving liquid chromatography coupled with ultraviolet, fluorescence, mass spectrometry, and electrochemical detection were summarized.
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FUJIWARA T, FUNATSU T, TSUNODA M. Improved Extraction Method for Catecholamines Using Monolithic Silica Disk-Packed Spin Column. CHROMATOGRAPHY 2020. [DOI: 10.15583/jpchrom.2020.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Takuya FUJIWARA
- Graduate School of Pharmaceutical Sciences, University of Tokyo
| | - Takashi FUNATSU
- Graduate School of Pharmaceutical Sciences, University of Tokyo
| | - Makoto TSUNODA
- Graduate School of Pharmaceutical Sciences, University of Tokyo
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Sainz R, Del Pozo M, Vilas-Varela M, Castro-Esteban J, Pérez Corral M, Vázquez L, Blanco E, Peña D, Martín-Gago JA, Ellis GJ, Petit-Domínguez MD, Quintana C, Casero E. Chemically synthesized chevron-like graphene nanoribbons for electrochemical sensors development: determination of epinephrine. Sci Rep 2020; 10:14614. [PMID: 32884078 PMCID: PMC7471882 DOI: 10.1038/s41598-020-71554-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2020] [Accepted: 08/18/2020] [Indexed: 11/09/2022] Open
Abstract
We employ chevron-like graphene nanoribbons (GNRs) synthesized by a solution-based chemical route to develop a novel electrochemical sensor for determination of the neurotransmitter epinephrine (EPI). The sensor surface, a glassy carbon electrode modified with GNRs, is characterized by atomic force microscopy, scanning electron microscopy and Raman spectroscopy, which show that the electrode surface modification comprises of bi-dimensional multilayer-stacked GNRs that retain their molecular structure. The charge transfer process occurring at the electrode interface is evaluated by electrochemical impedance spectroscopy. The sensor is applied to the determination of EPI, employing as an analytical signal the reduction peak corresponding to the epinephrinechrome–leucoepinephrinechrome transition (E = − 0.25 V) instead of the oxidation peak usually employed in the literature (E = + 0.6 V) in order to minimize interferences. The results obtained demonstrate that chevron-like nanoribbons synthesized by solution methods exhibit reliable electrocatalytic activity for EPI determination. Using differential pulse voltammetry, we obtain a linear concentration range from 6.4 × 10–6 to 1.0 × 10–4 M and a detection limit of 2.1 × 10–6 M. The applicability of the sensor was evaluated by determining EPI in pharmaceutical samples with satisfactory results.
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Affiliation(s)
- Raquel Sainz
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - María Del Pozo
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Manuel Vilas-Varela
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - Jesús Castro-Esteban
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - María Pérez Corral
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Luis Vázquez
- ESISNA group, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), c/ Sor Juana Inés de la Cruz Nº3, 28049, Madrid, Spain
| | - Elías Blanco
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Diego Peña
- Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS) and Departamento de Química Orgánica, Universidade de Santiago de Compostela, 15782, Santiago de Compostela, Spain
| | - José A Martín-Gago
- ESISNA group, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC), c/ Sor Juana Inés de la Cruz Nº3, 28049, Madrid, Spain
| | - Gary J Ellis
- Departamento de Física de Polímeros, Elastómeros y Aplicaciones Energéticas, Instituto de Ciencia y Tecnología de Polímeros (ICTP-CSIC), c/ Juan de la Cierva, 3, 28006, Madrid, Spain
| | - María Dolores Petit-Domínguez
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Carmen Quintana
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain
| | - Elena Casero
- Departamento de Química Analítica y Análisis Instrumental, Facultad de Ciencias, Campus de Excelencia de la Universidad Autónoma de Madrid, c/ Francisco Tomás y Valiente, Nº7, 28049, Madrid, Spain.
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Abrantes Dias AS, Amaral Pinto JC, Magalhães M, Mendes VM, Manadas B. Analytical methods to monitor dopamine metabolism in plasma: Moving forward with improved diagnosis and treatment of neurological disorders. J Pharm Biomed Anal 2020; 187:113323. [DOI: 10.1016/j.jpba.2020.113323] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 04/16/2020] [Accepted: 04/17/2020] [Indexed: 12/16/2022]
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Xiong X, Zhang Y. A new approach for urinary vanillylmandelic acid determination using eVol microextraction by packed sorbent coupled to liquid chromatography-tandem mass spectrometry. J Anal Sci Technol 2020. [DOI: 10.1186/s40543-020-00226-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
AbstractVanillylmandelic acid (VMA) is one of the most important catecholamine metabolites, and it is usually used to aid in diagnosis of pheochromocytoma and paraganglioma. A new digital control microextraction by packed sorbent (MEPS) procedure coupled to liquid chromatography-mass spectrometry (LC-MS/MS) method has been developed to determine VMA in human urine. We evaluated important parameters influencing MEPS efficiency, including stationary phase, extracting cycles, and sample dilution. In optimized MEPS conditions, Only 10 μL of sample volume and 3 min preparation time for one sample were needed. Chromatographic separation was achieved with a hydrophilic interaction liquid chromatography (HILIC) column using gradient elution. VMA was detected using multiple reaction monitoring (MRM) with an electrospray source operating in negative ion mode. The method was validated for linearity, limit of quantification, accuracy, imprecision, matrix effect, and interference. Linearity was 0.5–100 μg/mL for VMA. Intra-assay, inter-assay, and total imprecision were less than 9.6%. Interferences precluding quantitation of VMA in dilute-and-shoot approach were reduced significantly using a MEPS approach. Method comparison of LC-MS/MS and homogeneous enzyme immunoassay was performed, and the reference interval was established. The developed MEPS-LC-MS/MS method certainly contributes to method robustness and makes it suitable for measurement of urinary VMA in routine clinical biochemistry laboratories.
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van Faassen M, Bischoff R, Eijkelenkamp K, de Jong WHA, van der Ley CP, Kema IP. In Matrix Derivatization Combined with LC-MS/MS Results in Ultrasensitive Quantification of Plasma Free Metanephrines and Catecholamines. Anal Chem 2020; 92:9072-9078. [PMID: 32484659 PMCID: PMC7349590 DOI: 10.1021/acs.analchem.0c01263] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2020] [Accepted: 06/02/2020] [Indexed: 02/06/2023]
Abstract
Plasma-free metanephrines and catecholamines are essential markers in the biochemical diagnosis and follow-up of neuroendocrine tumors and inborn errors of metabolism. However, their low circulating concentrations (in the nanomolar range) and poor fragmentation characteristics hinder facile simultaneous quantification by liquid chromatography and tandem mass spectrometry (LC-MS/MS). Here, we present a sensitive and simple matrix derivatization procedure using propionic anhydride that enables simultaneous quantification of unconjugated l-DOPA, catecholamines, and metanephrines in plasma by LC-MS/MS. Dilution of propionic anhydride 1:4 (v/v) in acetonitrile in combination with 50 μL of plasma resulted in the highest mass spectrometric response. In plasma, derivatization resulted in stable derivatives and increased sensitivity by a factor of 4-30 compared with a previous LC-MS/MS method for measuring plasma metanephrines in our laboratory. Furthermore, propionylation increased specificity, especially for 3-methoxytyramine, by preventing interference from antihypertensive medication (β-blockers). The method was validated according to international guidelines and correlated with a hydrophilic interaction LC-MS/MS method for measuring plasma metanephrines (R2 > 0.99) and high-performance liquid chromatography with an electrochemical detection method for measuring plasma catecholamines (R2 > 0.85). Reference intervals for l-DOPA, catecholamines, and metanephrines in n = 115 healthy individuals were established. Our work shows that analytes in the subnanomolar range in plasma can be derivatized in situ without any preceding sample extraction. The developed method shows improved sensitivity and selectivity over existing methods and enables simultaneous quantification of several classes of amines.
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Affiliation(s)
- Martijn van Faassen
- Department
of Laboratory Medicine and Department of Endocrinology, University Medical Center Groningen, University of
Groningen, Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Rainer Bischoff
- Analytical
Biochemistry, Department of Pharmacy, University
of Groningen, Antonius Deusinglaan 1, 9713 AV Groningen, The Netherlands
| | - Karin Eijkelenkamp
- Department
of Laboratory Medicine and Department of Endocrinology, University Medical Center Groningen, University of
Groningen, Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Wilhelmina H. A. de Jong
- Department
of Laboratory Medicine and Department of Endocrinology, University Medical Center Groningen, University of
Groningen, Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Claude P. van der Ley
- Department
of Laboratory Medicine and Department of Endocrinology, University Medical Center Groningen, University of
Groningen, Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
| | - Ido P. Kema
- Department
of Laboratory Medicine and Department of Endocrinology, University Medical Center Groningen, University of
Groningen, Groningen, Hanzeplein 1, 9713 GZ Groningen, The Netherlands
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Bergmann ML, Schmedes A. Highly sensitive LC-MS/MS analysis of catecholamines in plasma. Clin Biochem 2020; 82:51-57. [PMID: 32201304 DOI: 10.1016/j.clinbiochem.2020.03.006] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2019] [Revised: 03/06/2020] [Accepted: 03/13/2020] [Indexed: 02/06/2023]
Abstract
The catecholamines, epinephrine (E) and norepinephrine (NE) are important both as neurotransmitters and hormones, and measurement of E and NE in plasma is therefore of great interest in medical research. However, the low concentrations of E and NE in plasma require an analysis method that is both specific and sensitive. Plasma sample E and NE were extracted using solid phase extraction, and analyzed by an in-sample ion-pairing chromatography (IPC) LC-MS/MS method, that enables the ion-pairing reagent to be diverted to waste without entering the ion source of the mass spectrometer. The method was validated with good performance characteristics and the limit of quantification (LOQ) was found to be 0.20 and 0.02 nmol/L for NE and E, respectively. In conclusion, this work presents development and validation of a method for determining E and NE in plasma with a measuring range covering the entire reference interval for human plasma.
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Affiliation(s)
- Marianne L Bergmann
- Biochemistry and Immunology, University Hospital of Southern Denmark, Vejle, Denmark.
| | - Anne Schmedes
- Biochemistry and Immunology, University Hospital of Southern Denmark, Vejle, Denmark
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LC-MS determination of catecholamines and related metabolites in red deer urine and hair extracted using magnetic multi-walled carbon nanotube poly(styrene-co-divinylbenzene) composite. J Chromatogr B Analyt Technol Biomed Life Sci 2019; 1136:121878. [PMID: 31812837 DOI: 10.1016/j.jchromb.2019.121878] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2019] [Revised: 10/23/2019] [Accepted: 11/08/2019] [Indexed: 12/30/2022]
Abstract
A novel analytical methodology for the extraction and determination of catecholamines (dopamine, epinephrine and norepinephrine) and their metabolites DL-3,4-dihydroxyphenyl glycol and DL-3,4-dihydroxymandelic acid by LC-MS is developed and validated for its application to human and animal urine and hair samples. The method is based on the preliminary extraction of the analytes by a magnetic multi-walled carbon nanotube poly(styrene-co-divinylbenzene) composite. This is followed by a <9 min chromatographic separation of the target compounds in an Onyx Monolithic C18 column using a mixture of 0.01% (v/v) heptafluorobutyric acid in water and methanol at 500 µL min-1 flow rate. Detection limits within range from 0.055 to 0.093 µg mL-1, and precision values of the response and retention times of analytes were >90%. Accuracy values comprised the range 79.5-109.5% when the analytes were extracted from deer urine samples using the selected MMWCNT-poly(STY-DVB) sorbent. This methodology was applied to real red deer urine and hair samples, and concentrations within range from 0.05 to 0.5 µg mL-1 for norepinephrine and from 1.0 to 44.5 µg mL-1 for its metabolite 3,4-dihydroxyphenyl glycol were calculated. Analyses of red deer hair resulted in high amounts of 3,4-dihydroxyphenyl glycol (0.9-266.9 µg mL-1).
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Tolmacheva VV, Yarykin DI, Gorbunova MV, Apyari VV, Dmitrienko SG, Zolotov YA. Preconcentration of Catecholamins on Hypercrosslinked Polystyrene and Their Determination by High-Performance Liquid Chromatography. JOURNAL OF ANALYTICAL CHEMISTRY 2019. [DOI: 10.1134/s1061934819090107] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Jung-Klawitter S, Kuseyri Hübschmann O. Analysis of Catecholamines and Pterins in Inborn Errors of Monoamine Neurotransmitter Metabolism-From Past to Future. Cells 2019; 8:cells8080867. [PMID: 31405045 PMCID: PMC6721669 DOI: 10.3390/cells8080867] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/02/2019] [Accepted: 08/04/2019] [Indexed: 12/13/2022] Open
Abstract
Inborn errors of monoamine neurotransmitter biosynthesis and degradation belong to the rare inborn errors of metabolism. They are caused by monogenic variants in the genes encoding the proteins involved in (1) neurotransmitter biosynthesis (like tyrosine hydroxylase (TH) and aromatic amino acid decarboxylase (AADC)), (2) in tetrahydrobiopterin (BH4) cofactor biosynthesis (GTP cyclohydrolase 1 (GTPCH), 6-pyruvoyl-tetrahydropterin synthase (PTPS), sepiapterin reductase (SPR)) and recycling (pterin-4a-carbinolamine dehydratase (PCD), dihydropteridine reductase (DHPR)), or (3) in co-chaperones (DNAJC12). Clinically, they present early during childhood with a lack of monoamine neurotransmitters, especially dopamine and its products norepinephrine and epinephrine. Classical symptoms include autonomous dysregulations, hypotonia, movement disorders, and developmental delay. Therapy is predominantly based on supplementation of missing cofactors or neurotransmitter precursors. However, diagnosis is difficult and is predominantly based on quantitative detection of neurotransmitters, cofactors, and precursors in cerebrospinal fluid (CSF), urine, and blood. This review aims at summarizing the diverse analytical tools routinely used for diagnosis to determine quantitatively the amounts of neurotransmitters and cofactors in the different types of samples used to identify patients suffering from these rare diseases.
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Affiliation(s)
- Sabine Jung-Klawitter
- Department of General Pediatrics, Division of Neuropediatrics and Metabolic Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany.
| | - Oya Kuseyri Hübschmann
- Department of General Pediatrics, Division of Neuropediatrics and Metabolic Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany
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Kristiansen MS, Stabursvik J, O'Leary EC, Pedersen M, Asprusten TT, Leegaard T, Osnes LT, Tjade T, Skovlund E, Godang K, Wyller VBB. Clinical symptoms and markers of disease mechanisms in adolescent chronic fatigue following Epstein-Barr virus infection: An exploratory cross-sectional study. Brain Behav Immun 2019; 80:551-563. [PMID: 31039432 DOI: 10.1016/j.bbi.2019.04.040] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2019] [Revised: 04/24/2019] [Accepted: 04/26/2019] [Indexed: 01/15/2023] Open
Abstract
INTRODUCTION Acute Epstein-Barr virus (EBV) infection is a trigger of chronic fatigue (CF) and Chronic Fatigue Syndrome (CFS). The aim of this cross-sectional study was to explore clinical symptoms as well as markers of disease mechanisms in fatigued and non-fatigued adolescents 6 months after EBV-infection, and in healthy controls. MATERIALS AND METHODS A total of 200 adolescents (12-20 years old) with acute EBV infection were assessed 6 months after the initial infectious event and divided into fatigued (EBV CF+) and non-fatigued (EBV CF-) cases based on questionnaire score. The EBV CF+ cases were further sub-divided according to case definitions of CFS. In addition, a group of 70 healthy controls with similar distribution of sex and age was included. Symptoms were mapped with a questionnaire. Laboratory assays included EBV PCR and serology; detailed blood leukocyte phenotyping and serum high-sensitive C-reactive protein; and plasma and urine cortisol and catecholamines. Assessment of autonomic activity was performed with continuous, non-invasive monitoring of cardiovascular variables during supine rest, controlled breathing and upright standing. Differences between EBV CF+ and EBV CF- were assessed by simple and multiple linear regression adjusting for sex as well as symptoms of depression and anxiety. A p-value ≤ 0.05 was considered statistically significant. This study is part of the CEBA-project (Chronic fatigue following acute Epstein-Barr virus infection in adolescents). RESULTS The EBV CF+ group had significantly higher scores for all clinical symptoms. All markers of infection and most immune, neuroendocrine and autonomic markers were similar across the EBV CF+ and EBV CF- group. However, the EBV CF+ group had slightly higher serum C-reactive protein (0.48 vs 0.43 mg/L, p = 0.031, high-sensitive assay), total T cell (CD3+) count (median 1573 vs 1481 × 106 cells/L, p = 0.012), plasma norepinephrine (1420 vs 1113 pmol/L, p = 0.01) and plasma epinephrine (363 vs 237 nmol/L, p = 0.032); lower low-frequency:high frequency (LF/HF) ratio of heart rate variability at supine rest (0.63 vs 0.76, p = 0.008); and an attenuated decline in LF/HF ratio during controlled breathing (-0.11 vs -0.25, p = 0.002). Subgrouping according to different CFS diagnostic criteria did not significantly alter the results. Within the EBV CF+ group, there were no strong correlations between clinical symptoms and markers of disease mechanisms. In a multiple regression analysis, serum CRP levels were independently associated with serum cortisol (B = 4.5 × 10-4, p < 0.001), urine norepinephrine (B = 9.6 × 10-2, p = 0.044) and high-frequency power of heart rate variability (B = -3.7 × 10-2, p = 0.024). CONCLUSIONS In adolescents, CF and CFS 6 months after acute EBV infection are associated with high symptom burden, but no signs of increased viral load and only subtle alterations of immune, autonomic, and neuroendocrine markers of which no one is strongly correlated with symptom scores. A slight sympathetic over parasympathetic predominance is evident in CF and might explain slightly increased CRP levels.
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Affiliation(s)
- Miriam Skjerven Kristiansen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Pediatrics, Akershus University Hospital, Lørenskog, Norway
| | - Julie Stabursvik
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Pediatrics, Akershus University Hospital, Lørenskog, Norway
| | - Elise Catriona O'Leary
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Pediatrics, Akershus University Hospital, Lørenskog, Norway
| | - Maria Pedersen
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Pediatrics, Akershus University Hospital, Lørenskog, Norway
| | - Tarjei Tørre Asprusten
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Pediatrics, Akershus University Hospital, Lørenskog, Norway
| | - Truls Leegaard
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Microbiology and Infection Control, Akershus University Hospital, Lørenskog, Norway
| | | | | | - Eva Skovlund
- Dept. of Public Health and Nursing, Norwegian University of Science and Technology, Trondheim, Norway; Norwegian Institute of Public Health, Norway
| | - Kristin Godang
- Section of Specialized Endocrinology, Dept. of Endocrinology, Oslo University Hospital, Norway
| | - Vegard Bruun Bratholm Wyller
- Institute of Clinical Medicine, University of Oslo, Oslo, Norway; Dept. of Pediatrics, Akershus University Hospital, Lørenskog, Norway.
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Tsunoda M, Zhuang H. Investigation of the interaction between serotonin-related compounds and phenylboronate moieties in monolithic silica disk-packed spin columns. Biomed Chromatogr 2019; 33:e4650. [PMID: 31313343 DOI: 10.1002/bmc.4650] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 07/05/2019] [Accepted: 07/11/2019] [Indexed: 11/06/2022]
Abstract
Solid-phase extraction technologies are widely used for sample pretreatment in bioanalysis. Monolithic silica disk-packed spin columns modified with phenylboronate moieties have been developed for the selective extraction of cis-diol compounds such as catecholamines. However, in our preliminary studies, serotonin was found to also be extracted in this treatment, along with catecholamines. In this study, the interaction between serotonin-related compounds (serotonin, tryptophan, 5-hydroxy-tryptophan and 5-hydroxyindoleacetic acid) and phenylboronate moieties was investigated. We found that only serotonin was extracted with phenylboronate-modified monolithic silica, whereas tryptophan, 5-hydroxy-tryptophan and 5-hydroxyindoleacetic acid were not. Hydrophobic interactions rather than ionic interactions were the primary factor for the adsorption of serotonin to phenylboronate. Finally, the selective pretreatment procedure for catecholamines was improved: thus, the method could be applied for the pretreatment of bio-samples.
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Affiliation(s)
- Makoto Tsunoda
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan
| | - Huiqi Zhuang
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Bunkyo-ku, Tokyo, Japan
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Jan SL, Lin MC, Chan SC, Lee HF, Chen PY, Huang FL. Urine catecholamines in children with severe Enterovirus A71 infection: comparison with paediatric septic shock. Biomarkers 2018; 24:277-285. [PMID: 30521401 DOI: 10.1080/1354750x.2018.1556339] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Abstract
Purpose: Hypercatecholaminemia-related heart failure has been proposed as the main cause of enterovirus A71-related (EV-A71) early mortality. The purpose of this study was to measure urine catecholamine concentrations in severe EV-A71-infected children. Methods: A total of 35 children, aged 2.5 ± 2.1 years, were divided into three groups. Group I: 15 septic shock patients, group II: 17 EV-A71-stage-2 patients, and group III: 3 EV-A71-stage-4 patients. The laboratory results, cardiac biomarkers and urine catecholamine concentrations were statistically analysed. Results: Group I had the highest C-reactive protein (CRP) levels and group II had the lowest B-type natriuretic peptide (BNP) and its N-terminal prohormone among the groups (p = 0.039, <0.01 and <0.01, respectively). Group III patients had significantly higher urine catecholamine and troponin-I values among the groups. If urine epinephrine (Epi) >134 ug/gCr, norepinephrine (NE) >176 ug/gCr and vanillylmandelic acid (VMA) >11.7 mg/gCr were used as the cutoff points to differentiate groups II and III, the sensitivities and specificity were all 100%. Conclusions: The significantly elevated urine catecholamine concentrations in EV-A71-stage-4 patients support the hypothesis that hypercatecholaminemia-related heart failure is involved in severe EV-A71 infection. Urine catecholamines could be used as reliable biomarkers for differentiation of severe EV-A71 infection with or without heart failure and septic shock.
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Affiliation(s)
- Sheng-Ling Jan
- a Department of Paediatrics, Children's Medical Center , Taichung Veterans General Hospital , Taichung , Taiwan , ROC.,b Department of Paediatrics, School of Medicine , National Yang-Ming University , Taipei , Taiwan , ROC.,c Department of Paediatrics, School of Medicine , Kaohsiung Medical University , Kaohsiung , Taiwan , ROC
| | - Ming-Chih Lin
- a Department of Paediatrics, Children's Medical Center , Taichung Veterans General Hospital , Taichung , Taiwan , ROC.,b Department of Paediatrics, School of Medicine , National Yang-Ming University , Taipei , Taiwan , ROC
| | - Sheng-Ching Chan
- d Department of Nursing, Ta-Jen University , Pingtung City , Taiwan , ROC
| | - Hsiu-Fen Lee
- a Department of Paediatrics, Children's Medical Center , Taichung Veterans General Hospital , Taichung , Taiwan , ROC
| | - Po-Yen Chen
- a Department of Paediatrics, Children's Medical Center , Taichung Veterans General Hospital , Taichung , Taiwan , ROC
| | - Fang-Liang Huang
- a Department of Paediatrics, Children's Medical Center , Taichung Veterans General Hospital , Taichung , Taiwan , ROC
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Mohammadi SZ, Beitollahi H, Khodaparast B, Hosseinzadeh R. Electrochemical determination of epinephrine, uric acid and folic acid using a carbon paste electrode modified with novel ferrocene derivative and core–shell magnetic nanoparticles. RESEARCH ON CHEMICAL INTERMEDIATES 2018. [DOI: 10.1007/s11164-018-3668-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xie Z, Lorkiewicz P, Riggs DW, Bhatnagar A, Srivastava S. Comprehensive, robust, and sensitive UPLC-MS/MS analysis of free biogenic monoamines and their metabolites in urine. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1099:83-91. [PMID: 30248561 PMCID: PMC6398444 DOI: 10.1016/j.jchromb.2018.09.012] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2018] [Revised: 09/05/2018] [Accepted: 09/11/2018] [Indexed: 01/03/2023]
Abstract
Biogenic monoamines, including catecholamines and serotonin are important hormones and neurotransmitters. Abnormal urinary levels of biogenic monoamines and their metabolites are associated with smoking, neuroendocrine tumors, as well as neurological and cardiovascular diseases. Measurements of free biogenic monoamines and their metabolites have been challenging because of low concentrations in complex biological matrices. Current methods require extensive enrichment and removal of interfering substances and can analyze only basic or acidic compounds in a single run. We developed a simple and robust dilute-and-shoot method capable of measuring 10 analytes, including free biogenic monoamines and their metabolites in human urine. The assay enables sensitive measurements of analytes within expected sample concentration ranges. To assess the assay's efficacy, we measured urinary levels of free biogenic monoamines and their metabolites in 255 non-smokers and 191 smokers. Our data show that while smokers had significantly higher urinary levels of free catecholamines and metanephrines, there was a decrease in levels of biogenic amine metabolites synthesized through the monoamine oxidase pathway - homovanillic acid and vanillylmandelic acid. The method could be used for high throughput measurement of the range of free biogenic amines and their metabolites in urine under a variety of different conditions.
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Affiliation(s)
- Zhengzhi Xie
- American Heart Association - Tobacco Regulation and Addiction Center, Superfund Research Center and Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville, 580 South Preston Street, Louisville, KY, 40202, United States of America
| | - Pawel Lorkiewicz
- American Heart Association - Tobacco Regulation and Addiction Center, Superfund Research Center and Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville, 580 South Preston Street, Louisville, KY, 40202, United States of America; Department of Chemistry, University of Louisville, 2320 S. Brook St., Louisville, KY, 40292, United States of America
| | - Daniel W Riggs
- American Heart Association - Tobacco Regulation and Addiction Center, Superfund Research Center and Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville, 580 South Preston Street, Louisville, KY, 40202, United States of America
| | - Aruni Bhatnagar
- American Heart Association - Tobacco Regulation and Addiction Center, Superfund Research Center and Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville, 580 South Preston Street, Louisville, KY, 40202, United States of America
| | - Sanjay Srivastava
- American Heart Association - Tobacco Regulation and Addiction Center, Superfund Research Center and Diabetes and Obesity Center, Institute of Molecular Cardiology, University of Louisville, 580 South Preston Street, Louisville, KY, 40202, United States of America.
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Elvebakk O, Tronstad C, Birkeland KI, Jenssen TG, Bjørgaas MR, Frøslie KF, Godang K, Kalvøy H, Martinsen ØG, Gulseth HL. Evaluation of Hypoglycaemia with Non-Invasive Sensors in People with Type 1 Diabetes and Impaired Awareness of Hypoglycaemia. Sci Rep 2018; 8:14722. [PMID: 30283093 PMCID: PMC6170450 DOI: 10.1038/s41598-018-33189-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 09/25/2018] [Indexed: 12/22/2022] Open
Abstract
People with type 1 diabetes and impaired awareness of hypoglycaemia (IAH) are prone to severe hypoglycaemia. Previous attempts to develop non-invasive hypoglycaemia alarm systems have shown promising results, but it is not known if such alarms can detect severe hypoglycaemia in people with IAH. We aimed to explore whether a combination of non-invasive sensors could reliably evaluate hypoglycaemia (plasma glucose (PG) minimum 2.5 mmol/L) in people with IAH. Twenty participants with type 1 diabetes and IAH underwent randomly ordered, single blinded hyperinsulinemic euglycaemic and hyperinsulinemic hypoglycaemic clamps. Sweating, skin temperature, ECG, counterregulatory hormones and symptoms of hypoglycaemia were assessed. Overall, we were not able to detect clamp-induced hypoglycaemia with sufficient sensitivity and specificity for further clinical use. As a post-hoc analysis, we stratified participants according to their ability to identify hypoglycaemic symptoms during hypoglycaemic clamps. Five out of 20 participants could identify such symptoms. These participants had a significantly higher adrenaline response to hypoglycaemia (p < 0.001) and were reliably identified by sensors. Based on our observations, a non-invasive alarm system based on measurement of sweating responses and ECG changes during hypoglycaemia might provide an alert at a plasma glucose concentration around 2.5 mmol/L if an adequate sympatho-adrenal reaction is elicited.
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Affiliation(s)
- Ole Elvebakk
- Department of Clinical and Biomedical Engineering, Oslo University Hospital, Oslo, Norway.
| | - Christian Tronstad
- Department of Clinical and Biomedical Engineering, Oslo University Hospital, Oslo, Norway
| | - Kåre I Birkeland
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway
| | - Trond G Jenssen
- Department of Organ Transplantation, Oslo University Hospital and University of Oslo, Oslo, Norway.,Metabolic and Renal Research Group, Faculty of Health Sciences, UiT The Arctic University of Norway, Tromsø, Norway
| | - Marit R Bjørgaas
- Department of Endocrinology, St. Olavs Hospital, Trondheim University Hospital, Trondheim, Norway.,Department of Clinical and Molecular Medicine, NTNU - Norwegian University of Science and Technology, Trondheim, Norway
| | - Kathrine F Frøslie
- Norwegian National Advisory Unit on Women's Health, Oslo University Hospital, Oslo, Norway
| | - Kristin Godang
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway
| | - Håvard Kalvøy
- Department of Clinical and Biomedical Engineering, Oslo University Hospital, Oslo, Norway
| | - Ørjan G Martinsen
- Department of Clinical and Biomedical Engineering, Oslo University Hospital, Oslo, Norway.,Department of Physics, University of Oslo, Oslo, Norway
| | - Hanne L Gulseth
- Department of Endocrinology, Morbid Obesity and Preventive Medicine, Oslo University Hospital, Oslo, Norway
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Makedonskaya MI, Veselova IA, Kalmykov SN, Shekhovtsova TN. Novel biosensing system for the simultaneous multiplex fluorescent determination of catecholamines and their metabolites in biological liquids. J Pharm Biomed Anal 2018; 156:133-141. [PMID: 29702391 DOI: 10.1016/j.jpba.2018.04.026] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 04/13/2018] [Accepted: 04/17/2018] [Indexed: 10/17/2022]
Abstract
A novel original biosensing system for the simultaneous multiplex determination of general markers of catecholamine-producing diseases - catecholamines (dopamine, epinephrine, norepinephrine) and their metabolites (homovanillic and vanillylmandelic acids) in biological liquids without preliminary separation of analytes, in the absence of specific antibodies and receptors and with minimum pretreatment of a samples has been developed. This outstanding approach includes the unique combination of obtaining highly fluorescent derivatives of the analytes as a result of their interaction with two different amines ̶ benzylamine and 1,2-diphenylethylenediamine in the presence of peroxidase as a catalyst, with the application of first-order derivative fluorescence spectroscopy for the resolution of their spectra. Fluorescence is measured in 96-well microplates, which wells contain a bio-recognizing film consisted of horseradish peroxidase immobilized in the polymer chitosan. Spectra of the solutions are recorded in the range 400-500 nm (λex ∼ 305-356 nm). The proposed procedures provide sensitive (in the range of 3-200 nM), selective, and reproducible (RSDs ≤ 1%, n = 6) multiplex determination of the catecholamines and their metabolites in biological liquids were successfully applied for the rapid simultaneous (20 samples per 15-30 min) screening of human urine and mice blood plasma. The validated results showed good linearity, precision, accuracy and selectivity of this method.
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Affiliation(s)
- Maria I Makedonskaya
- Chemical Department, M.V. Lomonosov Moscow State University, Moscow, 119991, Russian Federation; National Research Centre "Kurchatov Institute", Moscow, 123182, Russian Federation.
| | - Irina A Veselova
- Chemical Department, M.V. Lomonosov Moscow State University, Moscow, 119991, Russian Federation; National Research Centre "Kurchatov Institute", Moscow, 123182, Russian Federation.
| | - Stepan N Kalmykov
- Chemical Department, M.V. Lomonosov Moscow State University, Moscow, 119991, Russian Federation; National Research Centre "Kurchatov Institute", Moscow, 123182, Russian Federation.
| | - Tatiana N Shekhovtsova
- Chemical Department, M.V. Lomonosov Moscow State University, Moscow, 119991, Russian Federation.
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Nagler J, Schriever SC, De Angelis M, Pfluger PT, Schramm KW. Comprehensive analysis of nine monoamines and metabolites in small amounts of peripheral murine (C57Bl/6 J) tissues. Biomed Chromatogr 2017; 32. [DOI: 10.1002/bmc.4151] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 10/20/2017] [Accepted: 11/07/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Joachim Nagler
- Helmholtz Center Munich-German Research Center for Environmental Health, Molecular EXposomics; Neuherberg Germany
| | - Sonja C. Schriever
- Helmholtz Center Munich-German Research Center for Environmental Health, NeuroBioloy of Diabetes, Business Campus Garching; Garching Germany
| | - Meri De Angelis
- Helmholtz Center Munich-German Research Center for Environmental Health, Molecular EXposomics; Neuherberg Germany
| | - Paul T. Pfluger
- Helmholtz Center Munich-German Research Center for Environmental Health, NeuroBioloy of Diabetes, Business Campus Garching; Garching Germany
| | - Karl-Werner Schramm
- Helmholtz Center Munich-German Research Center for Environmental Health, Molecular EXposomics; Neuherberg Germany
- Department für Biowissenschaftliche Grundlagen; TUM, Wissenschaftszentrum Weihenstephan für Ernährung, Landnutzung und Umwelt; Freising Germany
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Tran M, Turner EB, Segro SS, Fang L, Seyyal E, Malik A. Tantala-based sol-gel coating for capillary microextraction on-line coupled to high-performance liquid chromatography. J Chromatogr A 2017; 1522:38-47. [PMID: 28969904 DOI: 10.1016/j.chroma.2017.09.048] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2017] [Revised: 09/19/2017] [Accepted: 09/21/2017] [Indexed: 10/18/2022]
Abstract
A sol-gel organic-inorganic hybrid sorbent, consisting of chemically integrated tantalum (V) ethoxide (TaEO) and polypropylene glycol methacrylate (PPGM), was developed for capillary microextraction (CME). The sol-gel sorbent was synthesized within a fused silica capillary through hydrolytic polycondensation of TaEO and chemical incorporation of PPGM into the evolving sol-gel tantala network. A part of the organic-inorganic hybrid sol-gel network evolving in the vicinity of the capillary walls had favorable conditions to get chemically bonded to the silanol groups on the capillary surface forming a surface-bonded coating. The newly developed sol-gel sorbent was employed to isolate and enrich a variety of analytes from aqueous samples for on-line analysis by high-performance liquid chromatography (HPLC) equipped with a UV detector. CME was performed on aqueous samples containing trace concentrations of analytes representing polycyclic aromatic hydrocarbons, ketones, alcohols, amines, nucleosides, and nucleotides. This sol-gel hybrid coating provided efficient extraction with CME-HPLC detection limits ranging from 4.41pM to 28.19 pM. Due to direct chemical bonding between the sol-gel sorbent coating and the fused silica capillary inner surface, this sol-gel sorbent exhibited enhanced solvent stability. The sol-gel tantala-based sorbent also exhibited excellent pH stability over a wide pH range (pH 0-pH 14). Furthermore, it displayed great performance reproducibility in CME-HPLC providing run-to-run HPLC peak area relative standard deviation (RSD) values between 0.23% and 3.83%. The capillary-to-capillary RSD (n=3), characterizing capillary preparation method reproducibility, ranged from 0.24% to 4.11%. The results show great performance consistency and application potential for the sol-gel tantala-PPGM sorbent in various fields including biomedical, pharmaceutical, and environmental areas.
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Affiliation(s)
- MinhPhuong Tran
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE 205, Tampa, FL 33620-5250, USA
| | - Erica B Turner
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE 205, Tampa, FL 33620-5250, USA
| | - Scott S Segro
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE 205, Tampa, FL 33620-5250, USA
| | - Li Fang
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE 205, Tampa, FL 33620-5250, USA
| | - Emre Seyyal
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE 205, Tampa, FL 33620-5250, USA
| | - Abdul Malik
- Department of Chemistry, University of South Florida, 4202 E. Fowler Avenue, CHE 205, Tampa, FL 33620-5250, USA.
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Jafarinejad S, Ghazi-Khansari M, Ghasemi F, Sasanpour P, Hormozi-Nezhad MR. Colorimetric Fingerprints of Gold Nanorods for Discriminating Catecholamine Neurotransmitters in Urine Samples. Sci Rep 2017; 7:8266. [PMID: 28811657 PMCID: PMC5557886 DOI: 10.1038/s41598-017-08704-5] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 07/17/2017] [Indexed: 11/09/2022] Open
Abstract
Catecholamine neurotransmitters, generally including dopamine (DA), epinephrine (EP) and norepinephrine (NE) are known as substantial indicators of various neurological diseases. Simultaneous detection of these compounds and their metabolites is highly recommended in early clinical diagnosis. To this aim, in the present contribution, a high performance colorimetric sensor array has been proposed for the detection and discrimination of catecholamines based on their reducing ability to deposit silver on the surface of gold nanorods (AuNRs). The amassed silver nanoshell led to a blue shift in the longitudinal localized surface plasmon resonance (LSPR) peak of AuNRs, creating a unique pattern for each of the neurotransmitters. Hierarchical cluster analysis (HCA) and linear discriminate analysis (LDA) pattern recognition techniques were employed to identify DA, EP and NE. The proposed colorimetric array is able to differentiate among individual neurotransmitters as well as their mixtures, successfully. Finally, it was shown that the sensor array can identify these neurotransmitters in human urine samples.
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Affiliation(s)
- Somayeh Jafarinejad
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mahmoud Ghazi-Khansari
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, P.O. Box, 13145-784, Tehran, Iran
| | - Forough Ghasemi
- Department of Chemistry, Sharif University of Technology, Tehran, 11155-9516, Iran
| | - Pezhman Sasanpour
- Department of Medical Physics and Biomedical Engineering, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Maulik M, Mitra S, Bult-Ito A, Taylor BE, Vayndorf EM. Behavioral Phenotyping and Pathological Indicators of Parkinson's Disease in C. elegans Models. Front Genet 2017; 8:77. [PMID: 28659967 PMCID: PMC5468440 DOI: 10.3389/fgene.2017.00077] [Citation(s) in RCA: 62] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2017] [Accepted: 05/22/2017] [Indexed: 12/14/2022] Open
Abstract
Parkinson's disease (PD) is a neurodegenerative disorder with symptoms that progressively worsen with age. Pathologically, PD is characterized by the aggregation of α-synuclein in cells of the substantia nigra in the brain and loss of dopaminergic neurons. This pathology is associated with impaired movement and reduced cognitive function. The etiology of PD can be attributed to a combination of environmental and genetic factors. A popular animal model, the nematode roundworm Caenorhabditis elegans, has been frequently used to study the role of genetic and environmental factors in the molecular pathology and behavioral phenotypes associated with PD. The current review summarizes cellular markers and behavioral phenotypes in transgenic and toxin-induced PD models of C. elegans.
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Affiliation(s)
- Malabika Maulik
- Department of Chemistry and Biochemistry, University of Alaska FairbanksFairbanks, AK, United States
| | - Swarup Mitra
- Department of Chemistry and Biochemistry, University of Alaska FairbanksFairbanks, AK, United States
| | - Abel Bult-Ito
- Department of Biology and Wildlife, University of Alaska FairbanksFairbanks, AK, United States
| | - Barbara E Taylor
- Department of Biological Sciences, California State University, Long BeachLong Beach, CA, United States
| | - Elena M Vayndorf
- Institute of Arctic Biology, University of Alaska FairbanksFairbanks, AK, United States
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Allen SA, Rednour S, Shepard S, Pond BB. A simple and sensitive high-performance liquid chromatography-electrochemical detection assay for the quantitative determination of monoamines and respective metabolites in six discrete brain regions of mice. Biomed Chromatogr 2017; 31. [PMID: 28474759 DOI: 10.1002/bmc.3998] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2017] [Revised: 04/21/2017] [Accepted: 04/28/2017] [Indexed: 11/09/2022]
Abstract
A rapid, sensitive, and reproducible assay is described for the quantitative determination of the monoamine neurotransmitters dopamine, norepinephrine and serotonin, their metabolites, and the internal standard 3,4-dihydroxybenzlyamine hydro-bromide in mouse brain homogenate using high-performance liquid chromatography with electrochemical detection. The method was validated in the following brain areas: frontal cortex, striatum, nucleus accumbens, hippocampus, substantia nigra pars compacta and ventral tegmental area. Biogenic amines and relevant metabolites were extracted from discrete brain regions using a simple protein precipitation procedure, and the chromatography was achieved using a C18 column. The method was accurate over the linear range of 0.300-30 ng/mL (r = 0.999) for dopamine and 0.300-15 ng/mL (r = 0.999) for norepinephrine, 3,4-dihydroxybenzlyamine hydro-bromide, homovanillic acid and 5-hydroxyindolacetic acid, with detection limits of ~0.125 ng/mL (5 pg on column) for each of these analytes. Accuracy and linearity for serotonin were observed throughout the concentration range of 0.625-30 ng/mL (r = 0.998) with an analytical detection limit of ~0.300 ng/mL (12 pg on column). Relative recoveries for all analytes were approximately ≥90% and the analytical run time was <10 min. The described method utilized minimal sample preparation procedures and was optimized to provide the sensitivity limits required for simultaneous monoamine and metabolite analysis in small, discrete brain tissue samples.
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Affiliation(s)
- Serena A Allen
- Bill Gatton College of Pharmacy, Pharmaceutical Sciences, East Tennessee State University, Johnson City, Tennessee, USA
| | - Stephanie Rednour
- Bill Gatton College of Pharmacy, Pharmaceutical Sciences, East Tennessee State University, Johnson City, Tennessee, USA
| | - Samantha Shepard
- Bill Gatton College of Pharmacy, Pharmaceutical Sciences, East Tennessee State University, Johnson City, Tennessee, USA
| | - Brooks Barnes Pond
- Bill Gatton College of Pharmacy, Pharmaceutical Sciences, East Tennessee State University, Johnson City, Tennessee, USA
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Jung IY, Kim JS, Choi BR, Lee K, Lee H. Hydrogel Based Biosensors for In Vitro Diagnostics of Biochemicals, Proteins, and Genes. Adv Healthc Mater 2017; 6. [PMID: 28371450 DOI: 10.1002/adhm.201601475] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2016] [Revised: 02/16/2017] [Indexed: 12/22/2022]
Abstract
Hydrogel-based biosensors have drawn considerable attention due to their various advantages over conventional detection systems. Recent studies have shown that hydrogel biosensors can be excellent alternative systems to detect a wide range of biomolecules, including small biochemicals, pathogenic proteins, and disease specific genes. Due to the excellent physical properties of hydrogels such as the high water content and stimuli-responsive behavior of cross-linked network structures, this system can offer substantial improvement for the design of novel detection systems for various diagnostic applications. The other main advantage of hydrogels is the role of biomimetic three-dimensional (3D) matrix immobilizing enzymes and aptamers within the detection systems, which enhances their stability. This provides ideal reaction conditions for enzymes and aptamers to interact with substrates within the aqueous environment of the hydrogel. In this review, we have highlighted various novel detection approaches utilizing the outstanding properties of the hydrogel. This review summarizes the recent progress of hydrogel-based biosensors and discusses their future perspectives and clinical limitations to overcome.
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Affiliation(s)
- Il Young Jung
- College of PharmacyGraduate School of Pharmaceutical SciencesEwha Womans University Seoul 03760 Republic of Korea
| | - Ji Su Kim
- College of PharmacyGraduate School of Pharmaceutical SciencesEwha Womans University Seoul 03760 Republic of Korea
| | - Bo Ram Choi
- College of PharmacyGraduate School of Pharmaceutical SciencesEwha Womans University Seoul 03760 Republic of Korea
| | - Kyuri Lee
- College of PharmacyGraduate School of Pharmaceutical SciencesEwha Womans University Seoul 03760 Republic of Korea
| | - Hyukjin Lee
- College of PharmacyGraduate School of Pharmaceutical SciencesEwha Womans University Seoul 03760 Republic of Korea
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Shen Y, Cheng L, Guan Q, Li H, Lu J, Wang X. Development and validation of a liquid chromatography tandem mass spectrometry method for the measurement of urinary catecholamines in diagnosis of pheochromocytoma. Biomed Chromatogr 2017; 31. [PMID: 28481409 DOI: 10.1002/bmc.4003] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 04/26/2017] [Accepted: 05/04/2017] [Indexed: 11/10/2022]
Abstract
The measurement of catecholamines in human body fluids is requested frequently for the differential diagnosis and monitoring of pheochromocytoma. The methods in most clinical laboratories focus on high-performance liquid chromatography coupled with electrochemical detection, which suffers from high background noise, low sensitivity, and poor separation. We reported and developed a robust high-throughput liquid chromatography tandem mass spectrometry method in routine clinical laboratories for the measurement of urinary catecholamines for diagnosis of pheochromocytoma. The method was validated for consistent linearity, good recovery (88-112%), excellent stability and low carryover. Intra- and inter-assay precision values for catecholamines were all below 3.35 and 4.83% respectively. Dilution linearity was investigated with satisfactory linearly dependent coefficients (r > 0.9988). The reference intervals were obtained from 310 results derived from patients in which the diagnosis of pheochromocytoma was excluded. This method was successfully used in our laboratory. The clinical characteristics of patients have been explored with satisfactory sensitivity and specificity. Therefore, we have developed a reliable assay for the liquid chromatography tandem mass spectrometry measurement of catecholamines in a routine clinical laboratory. The assay requires a small volume of urine, and all analytes are measured simultaneously. The assay is rapid and reliable to be executed, offering the potential for routine clinical laboratories.
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Affiliation(s)
- Ying Shen
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Liming Cheng
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Qing Guan
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Huijun Li
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Jie Lu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
| | - Xu Wang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, People's Republic of China
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Chernin G, Szwarcfiter I, Bausback Y, Jonas M. Renal Sympathetic Denervation System via Intraluminal Ultrasonic Ablation: Therapeutic Intravascular Ultrasound Design and Preclinical Evaluation. J Vasc Interv Radiol 2017; 28:740-748. [DOI: 10.1016/j.jvir.2017.01.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2016] [Revised: 01/23/2017] [Accepted: 01/24/2017] [Indexed: 11/26/2022] Open
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40
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Simultaneous determination of epinephrine, ascorbic acid and folic acid using TX-100 modified carbon paste electrode: A cyclic voltammetric study. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.02.029] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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41
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Simultaneous extraction and determination of monoamine neurotransmitters in human urine for clinical routine testing based on a dual functional solid phase extraction assisted by phenylboronic acid coupled with liquid chromatography-tandem mass spectrometry. Anal Bioanal Chem 2017; 409:2859-2871. [DOI: 10.1007/s00216-017-0231-z] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/19/2017] [Accepted: 01/26/2017] [Indexed: 01/06/2023]
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De Nardi F, Lefort C, Bréard D, Richomme P, Legros C, Guérineau NC. Monitoring the Secretory Behavior of the Rat Adrenal Medulla by High-Performance Liquid Chromatography-Based Catecholamine Assay from Slice Supernatants. Front Endocrinol (Lausanne) 2017; 8:248. [PMID: 28993760 PMCID: PMC5622411 DOI: 10.3389/fendo.2017.00248] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 09/11/2017] [Indexed: 12/21/2022] Open
Abstract
Catecholamine (CA) secretion from the adrenal medullary tissue is a key step of the adaptive response triggered by an organism to cope with stress. Whereas molecular and cellular secretory processes have been extensively studied at the single chromaffin cell level, data available for the whole gland level are much scarcer. We tackled this issue in rat by developing an easy to implement experimental strategy combining the adrenal acute slice supernatant collection with a high-performance liquid chromatography-based epinephrine and norepinephrine (NE) assay. This technique affords a convenient method for measuring basal and stimulated CA release from single acute slices, allowing thus to individually address the secretory function of the left and right glands. Our data point that the two glands are equally competent to secrete epinephrine and NE, exhibiting an equivalent epinephrine:NE ratio, both at rest and in response to a cholinergic stimulation. Nicotine is, however, more efficient than acetylcholine to evoke NE release. A pharmacological challenge with hexamethonium, an α3-containing nicotinic acetylcholine receptor antagonist, disclosed that epinephrine- and NE-secreting chromaffin cells distinctly expressed α3 nicotinic receptors, with a dominant contribution in NE cells. As such, beyond the novelty of CA assays from acute slice supernatants, our study contributes at refining the secretory behavior of the rat adrenal medullary tissue, and opens new perspectives for monitoring the release of other hormones and transmitters, especially those involved in the stress response.
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Affiliation(s)
- Frédéric De Nardi
- Mitochondrial and Cardiovascular Pathophysiology – MITOVASC, CNRS UMR6015, INSERM U1083, UBL/Angers University, Angers, France
| | - Claudie Lefort
- Mitochondrial and Cardiovascular Pathophysiology – MITOVASC, CNRS UMR6015, INSERM U1083, UBL/Angers University, Angers, France
| | - Dimitri Bréard
- EA921, SONAS, SFR QUASAV, UBL/Angers University, Angers, France
| | - Pascal Richomme
- EA921, SONAS, SFR QUASAV, UBL/Angers University, Angers, France
| | - Christian Legros
- Mitochondrial and Cardiovascular Pathophysiology – MITOVASC, CNRS UMR6015, INSERM U1083, UBL/Angers University, Angers, France
- *Correspondence: Christian Legros, ; Nathalie C. Guérineau,
| | - Nathalie C. Guérineau
- Mitochondrial and Cardiovascular Pathophysiology – MITOVASC, CNRS UMR6015, INSERM U1083, UBL/Angers University, Angers, France
- *Correspondence: Christian Legros, ; Nathalie C. Guérineau,
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43
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Janků S, Komendová M, Urban J. Development of an online solid-phase extraction with liquid chromatography method based on polymer monoliths for the determination of dopamine. J Sep Sci 2016; 39:4107-4115. [DOI: 10.1002/jssc.201600818] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 08/24/2016] [Accepted: 08/24/2016] [Indexed: 01/18/2023]
Affiliation(s)
- Simona Janků
- Department of Analytical Chemistry, Faculty of Chemical Technology; University of Pardubice; Studentstká 573 Pardubice Czech Republic
| | - Martina Komendová
- Department of Analytical Chemistry, Faculty of Chemical Technology; University of Pardubice; Studentstká 573 Pardubice Czech Republic
| | - Jiří Urban
- Department of Analytical Chemistry, Faculty of Chemical Technology; University of Pardubice; Studentstká 573 Pardubice Czech Republic
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An integrated liquid chromatography–tandem mass spectrometry approach for the ultra-sensitive determination of catecholamines in human peripheral blood mononuclear cells to assess neural-immune communication. J Chromatogr A 2016; 1449:54-61. [DOI: 10.1016/j.chroma.2016.04.039] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Revised: 03/24/2016] [Accepted: 04/14/2016] [Indexed: 01/06/2023]
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45
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Wyller VB, Vitelli V, Sulheim D, Fagermoen E, Winger A, Godang K, Bollerslev J. Altered neuroendocrine control and association to clinical symptoms in adolescent chronic fatigue syndrome: a cross-sectional study. J Transl Med 2016; 14:121. [PMID: 27149955 PMCID: PMC4858924 DOI: 10.1186/s12967-016-0873-1] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2015] [Accepted: 04/20/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Chronic fatigue syndrome (CFS) is a common and disabling disorder, and a major threat against adolescent health. The pathophysiology is unknown, but alteration of neuroendocrine control systems might be a central element, resulting in attenuation of the hypothalamus-pituitary-adrenalin (HPA) axis and enhancement of the sympathetic/adrenal medulla (SAM) system. This study explored differences in neuroendocrine control mechanisms between adolescent CFS patients and healthy controls, and whether characteristics of the control mechanisms are associated with important clinical variables within the CFS group. METHODS CFS patients 12-18 years of age were recruited nation-wide to a single referral center as part of the NorCAPITAL project. A broad case definition of CFS was applied. A comparable group of healthy controls were recruited from local schools. A total of nine hormones were assayed and subjected to network analyses using the ARACNE algorithm. Symptoms were charted by a questionnaire, and daily physical activity was recorded by an accelerometer. RESULTS A total of 120 CFS patients and 68 healthy controls were included. CFS patients had significantly higher levels of plasma norepinephrine, plasma epinephrine and plasma FT4, and significantly lower levels of urine cortisol/creatinine ratio. Subgrouping according to other case definitions as well as adjusting for confounding factors did not alter the results. Multivariate linear regression models as well as network analyses revealed different interrelations between hormones of the HPA axis, the SAM system, and the thyroid system in CFS patients and healthy controls. Also, single hormone degree centrality was associated with clinical markers within the CFS group. CONCLUSION This study reveals different interrelation between hormones of the HPA axis, the SAM system, and the thyroid system in CFS patients and healthy controls, and an association between hormone control characteristics and important clinical variables in the CFS group. These results add to the growing insight of CFS disease mechanisms. Trial registration Clinical Trials NCT01040429.
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Affiliation(s)
- Vegard Bruun Wyller
- />Division of Medicine and Laboratory Sciences, Medical Faculty, University of Oslo, Oslo, Norway
- />Department of Paediatrics, Akershus University Hospital, Nordbyhagen, 1478 Lørenskog, Norway
| | - Valieria Vitelli
- />Department of Biostatistics, Institute of Basic Medical Sciences, Oslo Centre for Biostatistics and Epidemiology, University of Oslo, Oslo, Norway
| | - Dag Sulheim
- />Department of Paediatrics, Oslo University Hospital, Oslo, Norway
- />Department of Paediatrics, Lillehammer County Hospital, Lillehammer, Norway
| | - Even Fagermoen
- />Institute of Clinical Medicine, Medical Faculty, University of Oslo, Oslo, Norway
- />Department of Anesthesiology and Critical Care, Oslo University Hospital, Oslo, Norway
| | - Anette Winger
- />Institute of Nursing Sciences, Oslo and Akershus University College of Applied Sciences, Oslo, Norway
| | - Kristin Godang
- />Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital Rikshospitalet, Oslo, Norway
| | - Jens Bollerslev
- />Section of Specialized Endocrinology, Department of Endocrinology, Oslo University Hospital Rikshospitalet, Oslo, Norway
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46
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Kanamori T, Funatsu T, Tsunoda M. Determination of catecholamines and related compounds in mouse urine using column-switching HPLC. Analyst 2016; 141:2568-73. [PMID: 27029966 DOI: 10.1039/c5an02617b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We have developed an analytical method for the determination of catecholamines and related compounds in mouse urine by column-switching HPLC. Selective extraction of the catechol compounds was performed using a precolumn modified with phenylboronic acid, which has a pH dependent affinity for the catechol structures. The pretreatment buffer, which facilitated binding of the catechols to the precolumn, was optimized to ensure high analyte recoveries and good peak shapes. We found that using the same acetonitrile content in the pretreatment buffer and hydrophilic interaction liquid chromatography mobile phase was necessary to improve peak shapes. Eight catechol compounds were selectively extracted and separated using 100 mmol L(-1) ammonium formate/acetonitrile (20/80 v/v, pH 8.0) for the extraction step, and 20 mmol L(-1) ammonium formate (pH 2.5)/acetonitrile (20/80 v/v) for elution and separation. Native fluorescence of the separated catechol compounds was monitored, and the limits of detection, corresponding to a signal to noise ratio of 3, were 9-58 nmol L(-1). Five catechol compounds (dopamine, epinephrine, norepinephrine, 3,4-dihydroxyphenylglycol, and 3,4-dihydroxymandelic acid) were successfully quantified in mouse urine. Intra- and inter-day precisions were less than 10%, and performance was superior to that afforded by manual sample pretreatment.
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Affiliation(s)
- Takahiro Kanamori
- Graduate School of Pharmaceutical Sciences, University of Tokyo, Tokyo, Japan.
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47
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Luliński P, Bamburowicz-Klimkowska M, Dana M, Szutowski M, Maciejewska D. Efficient strategy for the selective determination of dopamine in human urine by molecularly imprinted solid-phase extraction. J Sep Sci 2016; 39:895-903. [DOI: 10.1002/jssc.201501159] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/21/2015] [Accepted: 12/21/2015] [Indexed: 12/23/2022]
Affiliation(s)
- Piotr Luliński
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
| | | | - Mariusz Dana
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
| | - Mirosław Szutowski
- Department of Toxicology, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
| | - Dorota Maciejewska
- Department of Organic Chemistry, Faculty of Pharmacy; Medical University of Warsaw; Warsaw Poland
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48
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Li Z, Chen K, Guo MZ, Tang DQ. Two-dimensional liquid chromatography and its application in traditional Chinese medicine analysis and metabonomic investigation. J Sep Sci 2016; 39:21-37. [DOI: 10.1002/jssc.201500634] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2015] [Revised: 08/10/2015] [Accepted: 08/28/2015] [Indexed: 12/12/2022]
Affiliation(s)
- Zheng Li
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical College; Xuzhou China
| | - Kai Chen
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical College; Xuzhou China
| | - Meng-zhe Guo
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical College; Xuzhou China
- Department of Pharmaceutical Analysis, School of Pharmacy; Xuzhou Medical College; Xuzhou China
| | - Dao-quan Tang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Xuzhou Medical College; Xuzhou China
- Department of Pharmaceutical Analysis, School of Pharmacy; Xuzhou Medical College; Xuzhou China
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49
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Simunkova K, Jovanovic N, Rostrup E, Methlie P, Øksnes M, Nilsen RM, Hennø H, Tilseth M, Godang K, Kovac A, Løvås K, Husebye ES. Effect of a pre-exercise hydrocortisone dose on short-term physical performance in female patients with primary adrenal failure. Eur J Endocrinol 2016; 174:97-105. [PMID: 26494876 DOI: 10.1530/eje-15-0630] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Accepted: 10/21/2015] [Indexed: 11/08/2022]
Abstract
OBJECTIVE Many patients with primary adrenal insufficiency (Addison's disease) take extra doses of glucocorticoids during stressful events, but a benefit has not been demonstrated in controlled trials. Here, we investigated the effects of a pre-exercise hydrocortisone dose on cardiorespiratory, hormonal and metabolic parameters in response to short-term strenuous physical activity. DESIGN This was a randomized placebo-controlled, two-week cross-over clinical trial. PARTICIPANTS Ten women with Addison's disease and 10 age-matched healthy females participated in the study. MEASUREMENTS All women in the study underwent maximal incremental exercise testing. A stress dose of 10 mg hydrocortisone or placebo was given 1 h prior to exercise on two occasions. Blood samples were drawn before, and 0, 15 and 30 min post exercise. Oxygen uptake, maximal aerobic capacity, endocrine and metabolic responses to physical activity, as well as health status by questionnaires were evaluated. RESULTS Maximal aerobic capacity and duration of exercise were significantly lower in patients than in healthy subjects and did not improve with the treatment. After an extra hydrocortisone dose serum cortisol was significantly higher than in the healthy subjects (P<0.001). Post-exercise glucose and adrenaline levels were significantly lower and free fatty acids insignificantly higher in patients irrespective of stress dose. Stress dosing did not alter other metabolic or hormonal parameters or quality of life after the exercise. CONCLUSIONS The patients did not benefit from an extra dose of hydrocortisone in short strenuous exercise. Stress dosing may not be justified in this setting. Whether stress dosing is beneficial in other types of physical activity will have to be examined further.
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Affiliation(s)
- Katerina Simunkova
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Nevena Jovanovic
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Espen Rostrup
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Paal Methlie
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Marianne Øksnes
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Roy Miodini Nilsen
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Hanne Hennø
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Mira Tilseth
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Kristin Godang
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Ana Kovac
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Kristian Løvås
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
| | - Eystein S Husebye
- Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway Department of Clinical ScienceUniversity of Bergen, N-5021 Bergen, NorwayDepartments of MedicineHeart DiseaseCenter for Clinical Research Haukeland University HospitalBergen, 5021 Bergen, NorwaySection of Specialized EndocrinologyDepartment of Endocrinology, Oslo University Hospital Rikshospitalet, N-0027 Oslo, Norway
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Fast determination of catecholamines in human plasma using carboxyl-functionalized magnetic-carbon nanotube molecularly imprinted polymer followed by liquid chromatography-tandem quadrupole mass spectrometry. J Chromatogr A 2016; 1429:86-96. [DOI: 10.1016/j.chroma.2015.12.030] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Revised: 11/13/2015] [Accepted: 12/09/2015] [Indexed: 02/07/2023]
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