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Aschemacher NA, Gegenschatz SA, Teglia CM, Siano ÁS, Gutierrez FA, Goicoechea HC. Highly sensitive and selective electrochemical sensor for simultaneous determination of gallic acid, theophylline and caffeine using poly(l-proline) decorated carbon nanotubes in biological and food samples. Talanta 2024; 267:125246. [PMID: 37774452 DOI: 10.1016/j.talanta.2023.125246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/18/2023] [Accepted: 09/23/2023] [Indexed: 10/01/2023]
Abstract
In this work, a novel, simple and reproducible poly(l-proline)/functionalized multi-walled carbon nanotube composite on glassy carbon electrode (poly(PRO)-MWCNTs/GCE) was developed as an electrochemical sensor for the simultaneous determination of gallic acid (GA), theophylline (TP) and caffeine (CAF) by differential pulse voltammetry (DPV). The sensing platform was optimized by experimental design and response surface methodology, using various factors affecting polymerization and detection, such as electropolymerization time and potential, and pH, respectively. As a result, the dispersion conditions were the mixing of 1.78 mg MWCNTs with 1.00 mL l-proline solution to 4.14 mg mL-1 (in SDBS 0.5%), followed by 21 min of sonication with electropolymerization by 16 cyclic scans. In addition, the final analysis was performed at a pH of 3.00 and prior accumulation at 0.350 V for 40 s. The electrochemical behavior of GA, TP and CAF on the optimized sensor was investigated. As a result, the electrode preserves and synergistically combines the properties of each modifier. This new electrochemical sensor showed superior electrocatalytic properties for the oxidation of GA, TP and CAF, which significantly improved the sensitivity of the three compounds. Under the optimized experimental conditions, the detection limits achieved by S/N were 0.03, 0.04 and 0.11 μmol L-1 for GA, TP and CAF, respectively. The analysis of real samples was successfully performed in human breast milk, tea, infusion of yerba mate, coffee, Coca-Cola zero and energy drink, showing good recoveries, ranged between 87 and 108%. The proposed sensor also showed good selectivity, repeatability and reproducibility, indicating feasibility and reliability. This is the first time that the l-proline monomer is used as a dispersant for MWCNTs and as a precursor for the in-situ polymerization of the proline polymer. Previously, the electropolymerizations were carried out with the monomer in solution rather than as an exfoliant of MWCNTs, where the polymer is electrosynthesized between MWCNTs rather than on them. In this way, the large specific surface area and strong adsorption ability of the nanomaterial are enhanced, and the ability to promote electron transfer reaction is increased, which provides enough effective reaction sites.
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Affiliation(s)
- Nicolás A Aschemacher
- Laboratorio de Péptidos Bioactivos (LPB), Departamento de Química Orgánica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - Sofía A Gegenschatz
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina
| | - Carla M Teglia
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina
| | - Álvaro S Siano
- Laboratorio de Péptidos Bioactivos (LPB), Departamento de Química Orgánica, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina
| | - Fabiana A Gutierrez
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina.
| | - Héctor C Goicoechea
- Laboratorio de Desarrollo Analítico y Quimiometría (LADAQ), Cátedra de Química Analítica I, Facultad de Bioquímica y Ciencias Biológicas, Universidad Nacional del Litoral, Ciudad Universitaria, 3000, Santa Fe, Argentina; Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Godoy Cruz 2290 CP C1425FQB, Buenos Aires, Argentina
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2
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Viana RR, Pego AMF, Oliveira TFD, Dallegrave E, Eller S. Liquid chromatography-tandem mass spectrometry method for simultaneous quantification of neurotransmitters in rat brain tissue exposed to 4'-Fluoro-α-PHP. Biomed Chromatogr 2022; 36:e5487. [PMID: 36001303 DOI: 10.1002/bmc.5487] [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: 04/26/2022] [Revised: 07/26/2022] [Accepted: 08/22/2022] [Indexed: 11/11/2022]
Abstract
The combination of different advanced analytical techniques makes it possible to determine the concentrations of neurotransmitters in various biological matrices, providing a complex and comprehensive study of the effects of psychoactive substances. The present study aimed to develop and validate a fast and simple analytical method for the determination of acetylcholine, serotonin, γ-aminobutyric acid, glutamate, dopamine, and metabolites in rats brain tissue by liquid chromatography coupled to tandem mass spectrometry. The brain was homogenized and an aliquot of sample, dopamine-d4 , and acetone were added in a tube and then vortexed and centrifuged. The supernatant was collected and dried. The residue was reconstituted and injected. LLOQ ranged from 0.001 to 1 μg/g; intra-run precision from 0.47 to 11.52%; inter-run precision from 0.68 to 17.54%; bias from 89.10 to 109.60%. As proof of concept, the method was applied to animals exposed to the synthetic cathinone 4'-fuoro-α-pyrrolidinohexanophenone (300 mg/kg). In addition, the workflow proved to be simple, rapid, and useful to estimate the concentration of neurotransmitters. This analytical tool can be used to support the investigation of the changes in the neurochemical profile for the characterization of the mechanism of action of psychoactive substances, as well as both neurologic and psychiatric diseases.
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Affiliation(s)
- Roberta Rodrigues Viana
- Undergraduate Program in Pharmacy, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil
| | | | - Tiago Franco de Oliveira
- Pharmacosciences Department, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil.,Graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre, RS, Brazil
| | - Eliane Dallegrave
- Pharmacosciences Department, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil.,Graduate Program in Health Sciences, Federal University of Health Sciences of Porto Alegre, RS, Brazil.,Graduate Program in Pathology, Federal University of Health Sciences of Porto Alegre, RS, Brazil
| | - Sarah Eller
- Pharmacosciences Department, Federal University of Health Sciences of Porto Alegre, Porto Alegre, RS, Brazil.,Graduate Program in Pathology, Federal University of Health Sciences of Porto Alegre, RS, Brazil
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Khoshnevisan K, Baharifar H, Torabi F, Sadeghi Afjeh M, Maleki H, Honarvarfard E, Mohammadi H, Sajjadi-Jazi SM, Mahmoudi-Kohan S, Faridbod F, Larijani B, Saadat F, Faridi Majidi R, Khorramizadeh MR. Serotonin level as a potent diabetes biomarker based on electrochemical sensing: a new approach in a zebra fish model. Anal Bioanal Chem 2021; 413:1615-1627. [PMID: 33501550 DOI: 10.1007/s00216-020-03122-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2020] [Revised: 12/07/2020] [Accepted: 12/10/2020] [Indexed: 02/06/2023]
Abstract
Serotonin (5-HT) levels have been associated with several exclusively metabolic disorders. Herein, a new approach for 5-HT level as a novel biomarker of diabetes mellitus is considered using a simple nanocomposite and HPLC method. Reduced graphene oxide (rGO) comprising gold nanoparticles (AuNPs) was decorated with 18-crown-6 (18.Cr.6) to fabricate a simple nanocomposite (rGO-AuNPs-18.Cr.6). The nanocomposite was positioned on a glassy carbon electrode (GCE) to form an electrochemical sensor for the biomarker 5-HT in the presence of L-tryptophan (L-Trp), dopamine (DA), ascorbic acid (AA), urea, and glucose. The nanocomposite exhibited efficient catalytic activity for 5-HT detection by square-wave voltammetry (SWV). The proposed sensor displayed high selectivity, excellent reproducibility, notable anti-interference ability, and long-term stability even after 2 months. SWV defined a linear range of 5-HT concentration from 0.4 to 10 μg L-1. A diabetic animal model (diabetic zebrafish model) was then applied to investigate 5-HT as a novel biomarker of diabetes. A limit of detection (LOD) of about 0.33 μg L-1 was found for the diabetic group and 0.15 μg L-1 for the control group. The average levels of 5-HT obtained were 9 and 2 μg L-1 for control and diabetic groups, respectively. The recovery, relative standard deviation (RSD), and relative error (RE) were found to be about 97%, less than 2%, and around 3%, respectively. The significant reduction in 5-HT level in the diabetic group compared to the control group proved that the biomarker 5-HT can be applied for the early diagnosis of diabetes mellitus.
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Affiliation(s)
- Kamyar Khoshnevisan
- Biosensor Research Center, Endocrinology & Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran. .,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran. .,Zebrafish Core Facility, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran.
| | - Hadi Baharifar
- Department of Medical Nanotechnology, Applied Biophotonics Research Center, Science and Research Branch, Islamic Azad University, Tehran, 1477893855, Iran
| | - Farzad Torabi
- School of Chemistry, College of Science, University of Tehran, Tehran, 1417466191, Iran.,Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, 1417466191, Iran
| | - Mahsa Sadeghi Afjeh
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran
| | - Hassan Maleki
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
| | - Elham Honarvarfard
- Department of Chemistry and Biomolecular Science, Clarkson University, Potsdam, NY, 13699-5810, USA
| | - Hassan Mohammadi
- Zebrafish Core Facility, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran
| | - Sayed Mahmoud Sajjadi-Jazi
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran.,Cell Therapy and Regenerative Medicine Research Center, Endocrinology and Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran
| | - Sadegh Mahmoudi-Kohan
- School of Chemistry, College of Science, University of Tehran, Tehran, 1417466191, Iran.,Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, 1417466191, Iran
| | - Farnoush Faridbod
- School of Chemistry, College of Science, University of Tehran, Tehran, 1417466191, Iran.,Center of Excellence in Electrochemistry, School of Chemistry, College of Science, University of Tehran, Tehran, 1417466191, Iran
| | - Bagher Larijani
- Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran
| | - Farshid Saadat
- Department of Immunology, School of Medicine, Guilan University of Medical Sciences, Rasht, 41887-94755, Iran
| | - Reza Faridi Majidi
- Department of Medical Nanotechnology, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, 1417755469, Iran
| | - Mohammad Reza Khorramizadeh
- Biosensor Research Center, Endocrinology & Metabolism Molecular-Cellular Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran. .,Endocrinology and Metabolism Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran. .,Zebrafish Core Facility, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, 1411713137, Iran.
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4
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Analysis of catecholamines and related compounds in one whole metabolic pathway with high performance liquid chromatography based on derivatization. ARAB J CHEM 2019. [DOI: 10.1016/j.arabjc.2014.11.038] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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5
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Sørensen LK, Johannsen M. Sensitive determination of monoamine neurotransmitters, their main metabolites and precursor amino acids in different mouse brain components by liquid chromatography-electrospray tandem mass spectrometry after selective sample clean-up. Biomed Chromatogr 2019; 33:e4479. [PMID: 30597586 DOI: 10.1002/bmc.4479] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Revised: 11/21/2018] [Accepted: 12/19/2018] [Indexed: 12/29/2022]
Abstract
For the assessment of diets and supplements formulated for the treatment of phenylketonuria, a highly sensitive and selective method was developed and validated for the quantification of dopamine (DA), serotonin (5-HT), 3,4-dihydroxyphenylacetic acid (DOPAC), 5-hydroxyindoleacetic acid (5-HIAA), phenylalanine, tyrosine and tryptophan in mouse cerebellum, brain stem, hypothalamus, parietal cortex, anterior piriform cortex and bulbus olfactorius. Samples were extracted by deproteinization with acetonitrile, and the extracts were cleaned up by strong anion exchange and weak cation exchange applied sequentially. The substances were detected by rapid liquid chromatography tandem mass spectrometry. Matrix components were largely removed by the clean-up, resulting in low matrix effects. The lower limits of quantification for an extracted tissue mass of 100 mg were 0.3, 0.3, 0.2 and 2 ng/g for DA, 5-HT, 5-HIAA and DOPAC, respectively. The mean true extraction recoveries were 80-102%. The relative intra-laboratory reproducibility standard deviations were generally <11% at concentrations of 20-1000 ng/g for DA, 5-HT, 5-HIAA and DOPAC and 7% at concentrations of 5-50 μg/g for the amino acids. This method was successfully used in a phenylketonuria mice study including nearly 300 brain tissue samples and for small sample masses (for example, 2 mg of bulbus olfactorius).
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Affiliation(s)
- Lambert K Sørensen
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Aarhus N, Denmark
| | - Mogens Johannsen
- Section for Forensic Chemistry, Department of Forensic Medicine, Aarhus University, Aarhus N, Denmark
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6
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Dai Z, Sun S, Chen H, Liu M, Zhang L, Wu Z, Li J, Wu G. Analysis of Tryptophan and Its Metabolites by High-Performance Liquid Chromatography. Methods Mol Biol 2019; 2030:131-142. [PMID: 31347115 DOI: 10.1007/978-1-4939-9639-1_11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Tryptophan is a nutritionally essential amino acid for both humans and animals. Besides acting as a building block for protein synthesis, tryptophan (Trp) and its metabolites are crucial for maintaining neurological function, immunity, and homeostasis in the body. To uncover the regulatory role of Trp and its metabolites in cell nutrition, metabolism and physiology, various analytical methods, including high-performance liquid chromatography (HPLC), have been developed to determine key Trp metabolites. Here we describe a rapid and sensitive method for the simultaneous analysis of Trp and its metabolites along with other amino acids by HPLC involving in-line pre-column derivatization with o-phthaldialdehyde (OPA) and dual-channel fluorescence detection. OPA reacts very rapidly (within 1 min) with Trp, 5-hydroxytryptophan, 5-hydroxytryptamine, and tryptamine at room temperature (e.g., 20-25 °C) in an autosampler. Their derivatives are immediately injected into the HPLC column without the need for extraction. Trp metabolites that cannot react with OPA but are fluorescent can be detected by setting the excitation and emission wavelengths of the fluorescence detector in another detection channel. The autosampler is programmed to mix Trp and its metabolites with OPA for 1 min to generate highly fluorescent derivatives for HPLC separation and detection (Channel A, excitation = 270 nm and emission = 350 nm; Channel B, excitation = 340 nm and emission = 450 nm). The detection limit for Trp and its metabolites is 30 pmol/mL or 150 fmol/injection. The total time for chromatographic separation (including column regeneration) is 55 min for each sample. Our HPLC method can be used for the analysis of amino acids (including Trp) in alkaline protein hydrolysates and of Trp and its metabolites in biological samples.
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Affiliation(s)
- Zhaolai Dai
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China.
| | - Shiqiang Sun
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Hui Chen
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Moyan Liu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Lianhua Zhang
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Zhenlong Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
| | - Ju Li
- Henan Yinfa Animal Husbandry Co., Xinzheng, Henan, China
| | - Guoyao Wu
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, China
- Department of Animal Science, Texas A&M University, College Station, TX, USA
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7
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A wide-color-varying ratiometric nanoprobe for detection of norepinephrine in urine samples. Anal Chim Acta 2018; 1039:124-131. [DOI: 10.1016/j.aca.2018.07.043] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Revised: 07/11/2018] [Accepted: 07/17/2018] [Indexed: 12/18/2022]
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8
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Wang Y, Ding Y, Li L, Hu P. Nitrogen-doped carbon nanotubes decorated poly (L-Cysteine) as a novel, ultrasensitive electrochemical sensor for simultaneous determination of theophylline and caffeine. Talanta 2018; 178:449-457. [DOI: 10.1016/j.talanta.2017.08.076] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2017] [Revised: 08/20/2017] [Accepted: 08/24/2017] [Indexed: 12/25/2022]
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9
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Grigoryan A, Eisenberg AS, Juszczak LJ. PHOXI: A High Quantum Yield, Solvent-Sensitive Blue Fluorescent 5-Hydroxytryptophan Derivative Synthesized within Ten Minutes under Aqueous, Ambient Conditions. J Phys Chem B 2017; 121:7256-7266. [PMID: 28686023 DOI: 10.1021/acs.jpcb.7b03611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Multiple tryptophan (Trp) proteins are not amenable to fluorescence study because individual residue emission is not resolvable. Biosynthetic incorporation of an indole analogue such as 5-hydroxyindole has not provided sufficient spectroscopic resolution because of low quantum yield and small emission shift. Here, 5-hydroxyindole is used as the starting framework for building a blue emitting fluorophore of high quantum yield, 2-phenyl-6H-oxazolo[4,5-e]indole (PHOXI). This is a three reagent reaction completed in 10 min under ambient conditions in borate buffer at pH 8. Reaction conditions have been optimized using 5-hydroxyindole. Derivatization is demonstrated on tryptophanyl 5-hydroxytryptophan (5-HTP) and a stable β-hairpin "zipper" peptide with four tryptophan residues, TrpZip2, where Trp 4 has been replaced with 5-HTP, W4 → 5-HTP. Reaction optimization yields a PHOXI fluorophore that is essentially free of byproducts. Reaction specificity is demonstrated by the lack of reaction with N-acetyl-cysteine and amyloid β-40, a peptide containing all amino acids except tryptophan, proline, and cysteine and lacking 5-HTP. Fluorescence study of PHOXI-derivatized 5-hydroxyindole in different solvents reveals the sensitivity of PHOXI to solvent polarity with a remarkable 87 nm red-shift in water relative to cyclohexane while maintaining high quantum yield. Thus, PHOXI joins the ranks of solvatochromic fluorophores such as PRODAN. Surprisingly, DFT calculations reveal coplanarity of the oxazolo/indole extended ring system and the phenyl substituent for both the HOMO and LUMO orbitals. Despite the crowded environment of three additional Trps in TrpZip2, CD spectroscopy shows that the TrpZip2 β-hairpin structure is partially retained upon PHOXI incorporation. In an environment of smaller residues, PHOXI incorporation can be less disruptive of protein secondary structure, especially at molecular interfaces and other environments where there is typically less steric hindrance.
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Affiliation(s)
| | - Azaria S Eisenberg
- Department of Chemistry, Brooklyn College of The City University of New York , 2900 Bedford Avenue, New York, New York 11210, United States
| | - Laura J Juszczak
- Department of Chemistry, Brooklyn College of The City University of New York , 2900 Bedford Avenue, New York, New York 11210, United States
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10
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Han X, Min M, Wang J, Bao Z, Fan H, Li X, Adelusi TI, Zhou X, Yin X. Quantitative profiling of neurotransmitter abnormalities in brain, cerebrospinal fluid, and serum of experimental diabetic encephalopathy male rat. J Neurosci Res 2017; 96:138-150. [DOI: 10.1002/jnr.24098] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2017] [Revised: 05/14/2017] [Accepted: 05/16/2017] [Indexed: 01/16/2023]
Affiliation(s)
- Xiaowen Han
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
| | - Mengjun Min
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
| | - Juan Wang
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
| | - Zejun Bao
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
| | - Hongbin Fan
- Department of Neurology; Affiliated Hospital of Xuzhou Medical University; Xuzhou China
| | - Xinyu Li
- Department of Neurology; Affiliated Hospital of Xuzhou Medical University; Xuzhou China
| | - Temitope Isaac Adelusi
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
| | - Xueyan Zhou
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
| | - Xiaoxing Yin
- Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy; Jiangsu Center for the Collaboration and Innovation of Cancer Biotherapy, Xuzhou Medical University; Xuzhou China
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11
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Ngo KT, Varner EL, Michael AC, Weber SG. Monitoring Dopamine Responses to Potassium Ion and Nomifensine by in Vivo Microdialysis with Online Liquid Chromatography at One-Minute Resolution. ACS Chem Neurosci 2017; 8:329-338. [PMID: 28094974 DOI: 10.1021/acschemneuro.6b00383] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Recently, our laboratory has demonstrated the technical feasibility of monitoring dopamine at 1 min temporal resolution with microdialysis and online liquid chromatography. Here, we monitor dopamine in the rat striatum during local delivery of high potassium/low sodium or nomifensine in awake-behaving rats. Microdialysis probes were implanted and perfused continuously with or without dexamethasone in the perfusion fluid for 4 days. Dexamethasone is an anti-inflammatory agent that exhibits several positive effects on the apparent health of the brain tissue surrounding microdialysis probes. Dopamine was monitored 1 or 4 days after implantation under basal conditions, during 10 min applications of 60 mM or 100 mM K+, and during 15 min applications of 10 μM nomifensine. High K+ and nomifensine were delivered locally by adding them to the microdialysis perfusion fluid using a computer-controlled, low-dead-volume six-port valve. Each day/K+/dexamethasone combination elicited specific dopamine responses. Dexamethasone treatment increased dopamine levels in basal dialysates (i.e., in the absence of K+ or nomifensine). Applications of 60 mM K+ evoked distinct responses on days one and four after probe implantation, depending upon the presence or absence of dexamethasone, consistent with dexamethasone's ability to mitigate the traumatic effect of probe implantation. Applications of 100 mM K+ evoked dramatic oscillations in dopamine levels that correlated with changes in the field potential at a metal electrode implanted adjacent to the microdialysis probe. This combination of results indicates the role of spreading depolarization in response to 100 mM K+. With 1 min temporal resolution, we find that it is possible to characterize the pharmacokinetics of the response to the local delivery of nomifensine. Overall, the findings reported here confirm the benefits arising from the ability to monitor dopamine via microdialysis at high sensitivity and at high temporal resolution.
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Affiliation(s)
- Khanh T. Ngo
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Erika L. Varner
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Adrian C. Michael
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Stephen G. Weber
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
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12
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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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Simultaneous determination of 8 neurotransmitters and their metabolite levels in rat brain using liquid chromatography in tandem with mass spectrometry: Application to the murine Nrf2 model of depression. Clin Chim Acta 2015; 453:174-81. [PMID: 26712273 DOI: 10.1016/j.cca.2015.12.023] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Revised: 12/04/2015] [Accepted: 12/18/2015] [Indexed: 11/22/2022]
Abstract
Analysis of neurotransmitters and their metabolites is useful for the diagnosis of central nervous system diseases. A liquid chromatography-tandem mass spectrometry (LC-MS/MS) method with protein precipitation was developed to monitor levels of adrenaline (AD), noradrenaline (NA), glutamic acid (Glu), γ-aminobutyric acid (GABA), dopamine (DA), 5-hydroxytryptamine (5-HT), 5-hydroxyindole acetic acid (5-HIAA), and 3-methoxy-4-hydroxyphenylglycol (MHPG) in rat brain tissue. Isoprenaline was used as an internal standard (IS). Neurotransmitters and metabolites were eluted with a reverse phase column under gradient conditions through a mobile phase consisting of 0.2% formic acid water solution/acetonitrile. The compounds were detected and quantified by LC-MS/MS with positive or negative electrospray ionization, which operates in multiple-reaction monitoring mode. The method was linear or polynomial (R(2)>0.99) for AD, NA, Glu, GABA, DA, 5-HT, 5-HIAA, and MHPG in the range of 0.25-200, 0.5-200, 250-20,000, 250-20,000, 0.25-200, 10-3000, 1-50, and 1-50ng/mL, respectively. The validation assays for accuracy and precision, matrix effect, extraction recovery, stability and carry-over of the samples for neurotransmitters and metabolites were consistent with the requirements of regulatory agencies. The method enables rapid quantification of neurotransmitters and their metabolites and has been applied in the nuclear factor (erythroid 2-derived)-like 2 (Nrf2) knockout mouse model of depression.
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14
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A validated LC–MS/MS method for neurotransmitter metabolite analysis in human cerebrospinal fluid using benzoyl chloride derivatization. Bioanalysis 2015; 7:2461-75. [DOI: 10.4155/bio.15.170] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background: Human cerebrospinal fluid (CSF) is often acquired in Phase I clinical trials to assess the CNS penetration of new pharmacological agents and to search for biomarkers associated with PD effects. Robust methods for neurotransmitter metabolites in CSF have proven elusive, in part due to inadequate reversed phase LC retention. Results: Benzoyl chloride derivatization was used to promote retention for LC–MS/MS for a panel of neurotransmitter metabolites while delivering a concise method for sample preparation. Conclusion: A validated assay in human CSF was obtained for 3,4-dihydroxyphenylacetic acid, homovanillic acid, 3,4-dihydroxyphenylglycol and 5-hydroxyindoleacetic acid. This method is differentiated from other LC–MS/MS methods by delivering results in line with full regulatory expectations.
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15
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Chronic imipramine treatment differentially alters the brain and plasma amino acid metabolism in Wistar and Wistar Kyoto rats. Eur J Pharmacol 2015; 762:127-35. [DOI: 10.1016/j.ejphar.2015.05.043] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2015] [Revised: 05/20/2015] [Accepted: 05/20/2015] [Indexed: 11/24/2022]
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16
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Yang H, Sampson MM, Senturk D, Andrews AM. Sex- and SERT-mediated differences in stimulated serotonin revealed by fast microdialysis. ACS Chem Neurosci 2015; 6:1487-501. [PMID: 26167657 DOI: 10.1021/acschemneuro.5b00132] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
In vivo microdialysis is widely used to investigate how neurotransmitter levels in the brain respond to biologically relevant challenges. Here, we combined recent improvements in the temporal resolution of online sampling and analysis for serotonin with a brief high-K(+) stimulus paradigm to study the dynamics of evoked release. We observed stimulated serotonin overflow with high-K(+) pulses as short as 1 min when determined with 2-min dialysate sampling in ventral striatum. Stimulated serotonin levels in female mice during the high estrogen period of the estrous cycle were similar to serotonin levels in male mice. By contrast, stimulated serotonin overflow during the low estrogen period in female mice was increased to levels similar to those in male mice with local serotonin transporter (SERT) inhibition. Stimulated serotonin levels in mice with constitutive loss of SERT were considerably higher yet, pointing to neuroadaptive potentiation of serotonin release. When combined with brief K(+) stimulation, fast microdialysis reveals dynamic changes in extracellular serotonin levels associated with normal hormonal cycles and pharmacologic vs genetic loss of SERT function.
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Affiliation(s)
- Hongyan Yang
- Department of Psychiatry & Biobehavioral Sciences, Hatos Center for Neuropharmacology, Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, ‡Molecular Toxicology Interdepartmental Program, §Department of Chemistry & Biochemistry, and ∥Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Maureen M. Sampson
- Department of Psychiatry & Biobehavioral Sciences, Hatos Center for Neuropharmacology, Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, ‡Molecular Toxicology Interdepartmental Program, §Department of Chemistry & Biochemistry, and ∥Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Damla Senturk
- Department of Psychiatry & Biobehavioral Sciences, Hatos Center for Neuropharmacology, Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, ‡Molecular Toxicology Interdepartmental Program, §Department of Chemistry & Biochemistry, and ∥Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California 90095, United States
| | - Anne M. Andrews
- Department of Psychiatry & Biobehavioral Sciences, Hatos Center for Neuropharmacology, Semel Institute for Neuroscience & Human Behavior, David Geffen School of Medicine, ‡Molecular Toxicology Interdepartmental Program, §Department of Chemistry & Biochemistry, and ∥Department of Biostatistics, Fielding School of Public Health, University of California, Los Angeles, Los Angeles, California 90095, United States
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Van Schoors J, Lens C, Maes K, Michotte Y, Smolders I, Van Eeckhaut A. Reassessment of the antioxidative mixture for the challenging electrochemical determination of dopamine, noradrenaline and serotonin in microdialysis samples. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 998-999:63-71. [DOI: 10.1016/j.jchromb.2015.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/18/2015] [Accepted: 06/12/2015] [Indexed: 10/23/2022]
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18
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A rapid and simple method for the determination of 3,4-dihydroxyphenylacetic acid, norepinephrine, dopamine, and serotonin in mouse brain homogenate by HPLC with fluorimetric detection. J Pharm Biomed Anal 2014; 98:266-70. [DOI: 10.1016/j.jpba.2014.05.039] [Citation(s) in RCA: 114] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2014] [Accepted: 05/29/2014] [Indexed: 11/19/2022]
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19
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Simultaneous quantification of 5-hydroxyindoleacetic acid and 5-hydroxytryptamine by capillary electrophoresis with quantum dot and horseradish peroxidase enhanced chemiluminescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 967:190-4. [DOI: 10.1016/j.jchromb.2014.07.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2014] [Revised: 06/09/2014] [Accepted: 07/02/2014] [Indexed: 11/23/2022]
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20
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Orally administered whole egg demonstrates antidepressant-like effects in the forced swimming test on rats. Acta Neuropsychiatr 2014; 26:209-17. [PMID: 25142288 DOI: 10.1017/neu.2013.56] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
OBJECTIVE Several studies have reported that vegetarian diets are associated with a higher prevalence of major depression. Therefore, we hypothesised that the consumption of animal products, especially eggs, may have positive effects on mental health, especially on major depression, because a previous study reported that egg consumption produces numerous beneficial effects in humans. The purpose of the present study was to evaluate the effects of chronic whole-egg treatment on depression-like behaviours in Wistar rats, a control strain, and Wistar Kyoto rats, an animal model of depression. METHODS In both the rats, either whole-egg solution (5 ml/kg) or distilled water (5 ml/kg) was orally administrated for 35 days. During these periods, the open-field test (OFT) was conducted on the 21st day, and a forced swimming test (FST) was enforced on the 27th and 28th days. On the 36th day, the plasma and brain were collected. RESULTS Chronic whole-egg treatment did not affect line crossing in the OFT, whereas it reduced the total duration of immobility in the FST on both strains. Furthermore, interestingly, the results indicated the possibility that whole-egg treatment elevated the incorporation of tryptophan into the brain, and the tryptophan concentration in the prefrontal cortex was actually increased by the treatment. CONCLUSION This study demonstrated that whole-egg treatment exerts an antidepressant-like effect in the FST. It is suggested that whole egg may be an excellent food for preventing and alleviating the conditions of major depression.
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21
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Molecularly imprinted sensor based on o-aminophenol for the selective determination of norepinephrine in pharmaceutical and biological samples. Talanta 2014; 125:167-73. [DOI: 10.1016/j.talanta.2014.02.038] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2014] [Revised: 02/17/2014] [Accepted: 02/18/2014] [Indexed: 11/20/2022]
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22
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Shin KS, Zhao TT, Choi HS, Hwang BY, Lee CK, Lee MK. Effects of gypenosides on anxiety disorders in MPTP-lesioned mouse model of Parkinson׳s disease. Brain Res 2014; 1567:57-65. [DOI: 10.1016/j.brainres.2014.04.015] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2013] [Revised: 03/17/2014] [Accepted: 04/11/2014] [Indexed: 10/25/2022]
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23
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Zhang R, Li X, Shi Y, Shao Y, Sun K, Wang A, Sun F, Liu W, Wang D, Jin J, Li Y. The effects of LPM570065, a novel triple reuptake inhibitor, on extracellular serotonin, dopamine and norepinephrine levels in rats. PLoS One 2014; 9:e91775. [PMID: 24614602 PMCID: PMC3948889 DOI: 10.1371/journal.pone.0091775] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 02/13/2014] [Indexed: 11/19/2022] Open
Abstract
Triple reuptake inhibitors (TRIs) are currently being developed as a new class of promising antidepressants that block serotonin (5-HT), dopamine (DA) and norepinephrine (NE) transporters, thereby increasing extracellular monoamine concentrations. The purpose of this study was to investigate the effects of LPM570065, a novel TRI and a desvenlafaxine prodrug, on extracellular 5-HT, DA and NE levels in the rat striatum after acute and chronic administration relative to desvenlafaxine, using High Performance Liquid Chromatography (HPLC) and microdialysis. Acute administration was performed by providing rodents with oral solutions (0.06 mmol·kg(-1) p.o.), oral suspensions (0.06 mmol·kg(-1) p.o.) and intravenous solutions (0.04 mmol·kg(-1) i.v.) of LPM570065 and desvenlafaxine. Oral suspensions (0.06 mmol·kg(-1)·day(-1)) of the two drugs were also administered for a 14-day chronic period. HPLC analysis revealed that LPM570065 rapidly penetrated the rat striatum, converted into desvenlafaxine and exhibited larger total exposure compared with the administration of desvenlafaxine. Microdialysis revealed that acute and chronic administration of oral suspension of LPM570065 increased the 5-HT, DA and NE levels more than the relative administration of desvenlafaxine. Unlike desvenlafaxine, acute administration of an intravenous LPM570065 solution did not induce the undesirable 90% decrease in extracellular 5-HT levels. In contrast to the fully dose-dependent elevation of 5-HT induced by desvenlafaxine, the acute administration of LPM570065 showed a capped increase in extracellular 5-HT levels when combined with WAY-100635. Additionally, forced swim test demonstrated that acute and chronic administration of LPM570065 reduced the immobility time more than the relative administration of desvenlafaxine. These data suggest that LPM570065 may have greater efficacy and/or a more rapid onset of antidepressant action than desvenlafaxine and also counterbalance the harmful effects of desvenlafaxine on 5-HT neurotransmission related to 5-HT1A autoreceptors. Thus, this new class of drugs, TRIs has the potential to provide a new therapeutic mechanism for treating depression.
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Affiliation(s)
- Renyu Zhang
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
| | - Xiang Li
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
| | - Yanan Shi
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
| | - Yufeng Shao
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
| | - Kaoxiang Sun
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
- School of Pharmacy, Yantai University, Yantai, Shandong Province, China
| | - Aiping Wang
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
- School of Pharmacy, Yantai University, Yantai, Shandong Province, China
| | - Fengying Sun
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
| | - Wanhui Liu
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
- School of Pharmacy, Yantai University, Yantai, Shandong Province, China
| | - Di Wang
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
| | - Jingji Jin
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
- * E-mail: (YL); (JJ)
| | - Youxin Li
- School of Life Sciences, Jilin University, Changchun, Jilin Province, China
- State Key Laboratory of Long-acting and Targeting Drug Delivery System, Luye Pharmaceutical Company Limited, Yantai, Shandong Province, China
- School of Pharmacy, Yantai University, Yantai, Shandong Province, China
- * E-mail: (YL); (JJ)
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24
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Analysis of microdialysate monoamines, including noradrenaline, dopamine and serotonin, using capillary ultra-high performance liquid chromatography and electrochemical detection. J Chromatogr B Analyt Technol Biomed Life Sci 2014; 951-952:52-7. [DOI: 10.1016/j.jchromb.2014.01.023] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2013] [Revised: 01/09/2014] [Accepted: 01/16/2014] [Indexed: 02/07/2023]
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25
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Pradhan T, Jung HS, Jang JH, Kim TW, Kang C, Kim JS. Chemical sensing of neurotransmitters. Chem Soc Rev 2014; 43:4684-713. [DOI: 10.1039/c3cs60477b] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
This review focuses on the chemosensors for neurotransmitters published for the last 12 years, covering biogenic amines (dopamine, epinephrine, norepinephrine, serotonin, histamine and acetylcholine), amino acids (glutamate, aspartate, GABA, glycine and tyrosine), and adenosine.
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Affiliation(s)
- Tuhin Pradhan
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
- Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology
- and Department of Chemistry
| | - Hyo Sung Jung
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
| | - Joo Hee Jang
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
| | - Tae Woo Kim
- The East-West Medical Science
- Kyung Hee University
- Yongin 446-701, Korea
| | - Chulhun Kang
- The East-West Medical Science
- Kyung Hee University
- Yongin 446-701, Korea
| | - Jong Seung Kim
- Department of Chemistry
- Korea University
- Seoul 130-701, Korea
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Levomilnacipran (F2695), a norepinephrine-preferring SNRI: profile in vitro and in models of depression and anxiety. Neuropharmacology 2013; 70:338-47. [PMID: 23499664 DOI: 10.1016/j.neuropharm.2013.02.024] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2012] [Revised: 02/13/2013] [Accepted: 02/25/2013] [Indexed: 12/30/2022]
Abstract
Levomilnacipran (LVM; F2695) is the more active enantiomer of the serotonin/norepinephrine (5-HT/NE) reuptake inhibitor (SNRI) milnacipran and is currently under development for the treatment of major depressive disorder. LVM was benchmarked against two other SNRIs, duloxetine and venlafaxine, in biochemical, neurochemical and pharmacological assays. LVM exhibited high affinity for human NE (Ki = 92.2 nM) and 5-HT (11.2 nM) transporters, and potently inhibited NE (IC50 = 10.5 nM) and 5-HT (19.0 nM) reuptake (human transporter) in vitro. LVM had 2-fold greater potency for norepinephrine relative to serotonin reuptake inhibition (i.e. NE/5-HT potency ratio: 0.6) and 17 and 27 times higher selectivity for NE reuptake inhibition compared with venlafaxine and duloxetine, respectively. LVM did not exhibit affinity for 23 off-target receptors. LVM (i.p.) increased cortical extracellular levels of 5-HT, and NE (minimal effective doses: MEDs = 20 and 10 mg/kg, respectively). In anti-depressive/anti-stress models, i.p. LVM diminished immobility time in the mouse forced swim (MED = 20 mg/kg) and tail suspension (MED = 2.5 mg/kg) tests, and reduced shock-induced ultrasonic vocalizations in rats (MED = 5 mg/kg). Duloxetine and venlafaxine were less potent (MEDs ≥ 10 mg/kg). At doses active in these three therapeutically-relevant models, LVM (i.p.) did not significantly affect spontaneous locomotor activity. In summary, LVM is a potent, selective inhibitor of NE and 5-HT transporters with preferential activity at the former. It is efficacious in models of anti-depressive/anti-stress activity, with minimal potential for locomotor side effects.
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27
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Fang H, Pajski ML, Ross AE, Venton BJ. Quantitation of dopamine, serotonin and adenosine content in a tissue punch from a brain slice using capillary electrophoresis with fast-scan cyclic voltammetry detection. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2013; 5:2704-2711. [PMID: 23795210 PMCID: PMC3686531 DOI: 10.1039/c3ay40222c] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
Methods to determine neurochemical concentrations in small samples of tissue are needed to map interactions among neurotransmitters. In particular, correlating physiological measurements of neurotransmitter release and the tissue content in a small region would be valuable. HPLC is the standard method for tissue content analysis but it requires microliter samples and the detector often varies by the class of compound being quantified; thus detecting molecules from different classes can be difficult. In this paper, we develop capillary electrophoresis with fast-scan cyclic voltammetry detection (CE-FSCV) for analysis of dopamine, serotonin, and adenosine content in tissue punches from rat brain slices. Using field-amplified sample stacking, the limit of detection was 5 nM for dopamine, 10 nM for serotonin, and 50 nM for adenosine. Neurotransmitters could be measured from a tissue punch as small as 7 µg (7 nL) of tissue, three orders of magnitude smaller than a typical HPLC sample. Tissue content analysis of punches in successive slices through the striatum revealed higher dopamine but lower adenosine content in the anterior striatum. Stimulated dopamine release was measured in a brain slice, then a tissue punch collected from the recording region. Dopamine content and release had a correlation coefficient of 0.71, which indicates much of the variance in stimulated release is due to variance in tissue content. CE-FSCV should facilitate measurements of tissue content in nanoliter samples, leading to a better understanding of how diseases or drugs affect dopamine, serotonin, and adenosine content.
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28
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Park JY, Myung SW, Kim IS, Choi DK, Kwon SJ, Yoon SH. Simultaneous Measurement of Serotonin, Dopamine and Their Metabolites in Mouse Brain Extracts by High-Performance Liquid Chromatography with Mass Spectrometry Following Derivatization with Ethyl Chloroformate. Biol Pharm Bull 2013. [DOI: 10.1248/bpb.b12-00689] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Ju-Young Park
- Department of Molecular Science and Technology, Ajou University
| | | | - In-Soo Kim
- Department of Biotechnology, Konkuk University
| | | | - Soon-Jung Kwon
- Department of Molecular Science and Technology, Ajou University
| | - Sung-Hwa Yoon
- Department of Molecular Science and Technology, Ajou University
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29
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Zheng X, Kang A, Dai C, Liang Y, Xie T, Xie L, Peng Y, Wang G, Hao H. Quantitative Analysis of Neurochemical Panel in Rat Brain and Plasma by Liquid Chromatography–Tandem Mass Spectrometry. Anal Chem 2012; 84:10044-51. [DOI: 10.1021/ac3025202] [Citation(s) in RCA: 78] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Xiao Zheng
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - An Kang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Chen Dai
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Yan Liang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Tong Xie
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Lin Xie
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Yin Peng
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Guangji Wang
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
| | - Haiping Hao
- State Key Laboratory of Natural Medicines, Key Laboratory of Drug Metabolism & Pharmacokinetics, China Pharmaceutical University, 24 Tongjiaxiang, Nanjing 210009, China
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Bongiovanni R, Kyser AN, Jaskiw GE. Tyrosine depletion lowers in vivo DOPA synthesis in ventral hippocampus. Eur J Pharmacol 2012; 696:70-6. [PMID: 23022716 DOI: 10.1016/j.ejphar.2012.09.014] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2012] [Revised: 09/05/2012] [Accepted: 09/17/2012] [Indexed: 10/27/2022]
Abstract
In vivo dopamine synthesis in the medial prefrontal cortex of the rat is sensitive to the availability of tyrosine. Whether other limbic cortical dopamine terminal regions are similarly tyrosine-dependent is not known. In this study we examined the effects of tyrosine depletion on dopamine synthesis and catecholamine levels in the ventral hippocampus. A tyrosine- and phenylalanine-free neutral amino acid mixture was used to lower brain tyrosine levels in rats undergoing in vivo microdialysis. In one group, NSD-1015 was included in perfusate to permit measurement of DOPA levels. In a second group, NSD-1015 was not included in perfusate so that catecholamine levels could be assayed. Tyrosine depletion significantly lowered DOPA levels in the NSD-1015 treated group and lowered DOPAC but not dopamine or noradrenaline levels in the group not exposed to NSD-1015. We conclude that while catecholamine synthesis in the ventral hippocampus declines when tyrosine availability is lowered, under basal conditions, compensatory mechanisms are able to maintain stable extracellular catecholamine levels.
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Affiliation(s)
- Rodolfo Bongiovanni
- Psychiatry Service, Louis Stokes Cleveland VA Medical Center, 10701 East Blvd., Cleveland, Ohio 44106, USA.
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31
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Nirogi R, Komarneni P, Kandikere V, Boggavarapu R, Bhyrapuneni G, Benade V, Gorentla S. A sensitive and selective quantification of catecholamine neurotransmitters in rat microdialysates by pre-column dansyl chloride derivatization using liquid chromatography-tandem mass spectrometry. J Chromatogr B Analyt Technol Biomed Life Sci 2012; 913-914:41-7. [PMID: 23270937 DOI: 10.1016/j.jchromb.2012.09.034] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2012] [Revised: 09/18/2012] [Accepted: 09/23/2012] [Indexed: 11/29/2022]
Abstract
A rapid and sensitive liquid chromatography tandem mass spectrometry method for simultaneous quantification of catecholamine neurotransmitters in microdialysates was developed. The catecholamine neurotransmitters dopamine (DA) and norepinephrine (NE) were pre-column derivatized with dansyl chloride and analyzed. A gradient elution method was used to separate the analytes from the interferences on an Agilent Poroshell 120 EC-C18 outer porous micro particulate column. The method was robust and sensitive to determine with the lower limit of quantification value of 0.068pmol/mL and 0.059pmol/mL for DA and NE, respectively. It has acceptable precision and accuracy for concentrations over the standard curve range. The method was successfully applied for simultaneous quantitation of DA and NE in the prefrontal cortex (PFC) dialysates of rats obtained from a microdialysis study dosed with vehicle and atomoxetine through intra peritoneal (i.p.) route at a dose of 3mg/kg to monitor the change in extracellular concentrations. Thus, accomplishment of this method would facilitate the neurochemical monitoring for discovery of new chemical entities targeted for the treatment of attention deficit hyperactivity disorder (ADHD).
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Affiliation(s)
- Ramakrishna Nirogi
- Biopharmaceutical Research, Drug Discovery, Suven Life Sciences Ltd., Serene Chambers, Road - 5, Avenue - 7, Banjara Hills, Hyderabad 500 034, India.
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NAGASAWA M, MURAKAMI T, TOMONAGA S, SATO M, TAKAHATA Y, MORIMATSU F, FURUSE M. Impacts of acute imipramine treatment on plasma and brain amino acid metabolism in mice given graded levels of dietary chicken protein. Anim Sci J 2012; 83:777-87. [DOI: 10.1111/j.1740-0929.2012.01025.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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33
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Revin SB, John SA. Electrochemical sensor for neurotransmitters at physiological pH using a heterocyclic conducting polymer modified electrode. Analyst 2012; 137:209-15. [DOI: 10.1039/c1an15746a] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Kim MJ, Kim BK, Kim SM, Park JS, Hong JK. Profiling analysis of catecholamines and polyamines in biological samples. ANALYTICAL SCIENCE AND TECHNOLOGY 2011. [DOI: 10.5806/ast.2011.24.5.319] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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35
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Li G, Zhang X, You J, Song C, Sun Z, Xia L, Suo Y. Highly sensitive and selective pre-column derivatization high-performance liquid chromatography approach for rapid determination of triterpenes oleanolic and ursolic acids and application to Swertia species: optimization of triterpenic acids extraction and pre-column derivatization using response surface methodology. Anal Chim Acta 2011; 688:208-18. [PMID: 21334488 DOI: 10.1016/j.aca.2011.01.010] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2010] [Revised: 12/22/2010] [Accepted: 01/12/2011] [Indexed: 11/20/2022]
Abstract
Oleanolic acid (OA) and ursolic acid (UA) are the ubiquitous triterpenic acids in plant kingdom and have multiple biological effects. In the present study, a highly sensitive and selective method using a dual-sensitive probe 2-(5-benzoacridine)ethyl-p-toluenesulfonate (BAETS) as pre-column labeling reagent has been developed for rapid determination of the triterpenes OA and UA by HPLC with fluorescence detection (FLD) and online mass spectrometry identification. Response surface methodology as an efficient tool was employed to optimize the ultrasonic-assisted extraction of triterpenic acids from Swertia plants and the pre-column derivatization reaction, respectively, which ensured the highest triterpenic acids recoveries within the shortest extraction time and the sufficient labeling of the analyzed components. Fast separation of the isomers OA and UA could be achieved on a Hypersil BDS C8 column within 7 min. Both of OA and UA gave the good correlation coefficients of 0.9999. This developed method offered the satisfactory detection limits of 1.10 and 1.30 ng mL(-1) for UA and OA, respectively. When applied to Swertia species, it showed good reproducibility.
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Affiliation(s)
- Guoliang Li
- Northwest Plateau Institute of Biology, Chinese Academy of Sciences, Xining, 810001, PR China
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KATO T, TOKIYOSHI A, KASHIWADA Y, MIYACHI K, MORIYAMA K, MORIMOTO S, ASANO M, YAMAGUCHI T, FUJITA Y. Simple and Highly Sensitive Fluorometric Determination of Serotonin Using Propylene Glycol. BUNSEKI KAGAKU 2011. [DOI: 10.2116/bunsekikagaku.60.685] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Affiliation(s)
- Takao KATO
- OsakaUniversity of Pharmaceutical Science
| | | | | | - Kanako MIYACHI
- Department of Hospital Pharmacy School of Medicine, Kinki University
| | - Kenzo MORIYAMA
- Department of Hospital Pharmacy School of Medicine, Kinki University
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Determination of trace amino acids in human serum by a selective and sensitive pre-column derivatization method using HPLC-FLD-MS/MS and derivatization optimization by response surface methodology. Amino Acids 2010; 40:1185-93. [PMID: 20844907 DOI: 10.1007/s00726-010-0742-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2010] [Accepted: 08/31/2010] [Indexed: 10/19/2022]
Abstract
Analysis of trace amino acids (AA) in physiological fluids has received more attention, because the analysis of these compounds could provide fundamental and important information for medical, biological, and clinical researches. More accurate method for the determination of those compounds is highly desirable and valuable. In the present study, we developed a selective and sensitive method for trace AA determination in biological samples using 2-[2-(7H-dibenzo [a,g]carbazol-7-yl)-ethoxy] ethyl chloroformate (DBCEC) as labeling reagent by HPLC-FLD-MS/MS. Response surface methodology (RSM) was first employed to optimize the derivatization reaction between DBCEC and AA. Compared with traditional single-factor design, RSM was capable of lessening laborious, time and reagents consumption. The complete derivatization can be achieved within 6.3 min at room temperature. In conjunction with a gradient elution, a baseline resolution of 20 AA containing acidic, neutral, and basic AA was achieved on a reversed-phase Hypersil BDS C(18) column. This method showed excellent reproducibility and correlation coefficient, and offered the exciting detection limits of 0.19-1.17 fmol/μL. The developed method was successfully applied to determinate AA in human serum. The sensitive and prognostic index of serum AA for liver diseases has also been discussed.
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Hubbard KE, Wells A, Owens TS, Tagen M, Fraga CH, Stewart CF. Determination of dopamine, serotonin, and their metabolites in pediatric cerebrospinal fluid by isocratic high performance liquid chromatography coupled with electrochemical detection. Biomed Chromatogr 2010; 24:626-31. [PMID: 19810006 DOI: 10.1002/bmc.1338] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
A method to rapidly measure dopamine (DA), dihydroxyindolphenylacetic acid, homovanillic acid, serotonin (5-HT) and 5-hydroxyindoleacetic acid concentrations in cerebrospinal fluid (CSF) has not yet been reported. A rapid, sensitive, and specific HPLC method was therefore developed using electrochemical detection. CSF was mixed with an antioxidant solution prior to freezing to prevent neurotransmitter degradation. Separation of the five analytes was obtained on an ESA MD-150 x 3.2 mm column with a flow rate of 0.37 mL/min and an acetonitrile-aqueous (5 : 95, v/v) mobile phase with 75 mM monobasic sodium phosphate buffer, 0.5 mM EDTA, 0.81 mM sodium octylsulfonate and 5% tetrahydrofuran. The optimal electrical potential settings were: guard cell +325 mV, E1 -100 mV and E2 +300 mV. Within-day and between-day precisions were <10% for all analytes and accuracies ranged from 91.0 to 106.7%. DA, 5-HT, and their metabolites were stable in CSF with antioxidant solution at 4 degrees C for 8 h in the autoinjector. This method was used to measure neurotransmitters in CSF obtained from children enrolled on an institutional medulloblastoma treatment protocol.
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Affiliation(s)
- K Elaine Hubbard
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital (SJCRH), Memphis, TN 38105-2794, USA
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Borue X, Condron B, Venton BJ. Both synthesis and reuptake are critical for replenishing the releasable serotonin pool in Drosophila. J Neurochem 2010; 113:188-99. [PMID: 20070864 DOI: 10.1111/j.1471-4159.2010.06588.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The two main sources of serotonin available for release are expected to be newly synthesized serotonin and serotonin recycled after reuptake by the serotonin transporter. However, their relative importance for maintaining release and the time course of regulation are unknown. We studied serotonin signaling in the ventral nerve cord of the larval Drosophila CNS. Fast-scan cyclic voltammetry at implanted microelectrodes was used to detect serotonin elicited by channelrhodopsin2-mediated depolarization. The effects of reuptake were probed by incubating in cocaine, which is selective for the serotonin transporter in Drosophila. p-chlorophenylalanine, an inhibitor of tryptophan hydroxylase2, was used to investigate the effects of synthesis. Stimulations were repeated at various intervals to assess the time course of recovery of the releasable pool. Reuptake is important for the rapid replenishment of the releasable pool, on the 1 min time scale. Synthesis is critical to the longer-term replenishment (10 min) of the releasable pool, especially when reuptake is also inhibited. Concurrent synthesis and reuptake inhibition decreased both serotonin tissue content measured by immunohistochemistry (by 50%) and the initial amount of evoked serotonin (by 65%). Decreases in evoked serotonin are rescued by inhibiting action potential propagation with tetrodotoxin, implicating endogenous activity in the depletion. These results show synthesis is necessary to replenish part of the releasable serotonin pool that is depleted after reuptake inhibition, suggesting that regulation of synthesis may modulate the effects of serotonin reuptake inhibitors.
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Affiliation(s)
- Xenia Borue
- Medical Scientist Training Program, University of Virginia, Charlottesville, VA 22904, USA
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40
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Slater S, Villalba MM, Davis J. Key neurochemical markers for the prevention of suicide. Trends Analyt Chem 2009. [DOI: 10.1016/j.trac.2009.06.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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41
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Determination of dansylated monoamine and amino acid neurotransmitters and their metabolites in human plasma by liquid chromatography-electrospray ionization tandem mass spectrometry. Anal Biochem 2009; 396:103-11. [PMID: 19751698 DOI: 10.1016/j.ab.2009.09.015] [Citation(s) in RCA: 117] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2009] [Revised: 09/05/2009] [Accepted: 09/09/2009] [Indexed: 11/23/2022]
Abstract
The determination of neurotransmitters (NTs) and their metabolites facilitates better understanding of complex neurobiology in the central nervous system disorders and has expanding uses in many other fields. We present a liquid chromatography-electrospray ionization tandem mass spectrometry (LC-ESI/MS/MS) method for the quantification of dopamine (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), homovanillic acid (HVA), norepinephrine (NE), vanillymandelic acid (VMA), 3-methoxy-4-hydroxy phenylglycol (MHPG), 5-hydroxytryptamine (5-HT), 5-hydroxyindole-3-acetic acid (5-HIAA), glutamate (Glu), and gamma-aminobutyric acid (GABA). The NTs and their metabolites were dansylated and analyzed by an LC gradient on a C18 column on-line with a tandem mass spectrometer. This method exhibited excellent linearity for all of the analytes with regression coefficients higher than 0.99. The lower limit of quantification (LLOQ) values for DA, DOPAC, HVA, NE, VMA, MHPG, 5-HT, 5-HIAA, Glu, and GABA were 0.57, 0.37, 0.35, 0.40, 0.35, 0.91, 0.27, 0.43, 0.65, and 1.62 pmol/ml, respectively. The precision results were expressed as coefficients of variation (CVs), ranging from 1.5% to 13.6% for intraassay and from 2.9% to 13.7% for the interassay. This novel LC-ESI/MS/MS approach is precise, highly sensitive, specific, and sufficiently simple. It can provide an alternative method for the quantification of the NTs and their metabolites in human plasma.
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Assié MB, Mnie-Filali O, Ravailhe V, Benas C, Marien M, Bétry C, Zimmer L, Haddjeri N, Newman-Tancredi A. F15063, a potential antipsychotic with dopamine D2/D3 receptor antagonist, 5-HT1A receptor agonist and dopamine D4 receptor partial agonist properties: influence on neuronal firing and neurotransmitter release. Eur J Pharmacol 2009; 607:74-83. [PMID: 19326477 DOI: 10.1016/j.ejphar.2009.02.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
F15063 (N-[(2,2-dimethyl-2,3-dihydro-benzofuran-7-yloxy)-ethyl]-(3-cyclopenten-1-yl-benzyl)-amine) is a potential antipsychotic with dopamine D2/D3 receptor antagonist, 5-HT1A receptor agonist and dopamine D4 receptor partial agonist properties. Herein, we compared its effects on rat ventral tegmental area dopamine and dorsal raphe serotonin electrical activity with those of the dopamine D2 receptor partial agonist/5-HT1A receptor agonist, SSR181507. Further, we investigated the modulation of extracellular dopamine and noradrenaline in the medial prefrontal cortex and serotonin in the hippocampus of freely moving rats by F15063 using in vivo microdialysis. In the ventral tegmental area, F15063 (200-700 microg/kg, i.v.) did not alter the electrical activity of dopamine neurons whereas SSR181507 (250-1000 microg/kg, i.v.) partially inhibited it, consistent with dopamine D2 receptor partial agonism. Both compounds reduced the inhibition of firing rate induced by the full agonist apomorphine. In the dorsal raphe, both ligands suppressed firing activity, consistent with agonism at 5-HT1A autoreceptors, although SSR181507 (25-75 microg/kg, i.v.) was more potent than F15063 (100-300 microg/kg, i.v.). F15063 (0.63-40 mg/kg, i.p.) dose-dependently increased dopamine levels in the prefrontal cortex and decreased hippocampal 5-HT. These effects were reversed by the selective 5-HT1A receptor antagonist WAY100635 (0.16 mg/kg, s.c.), indicating that they were mediated by 5-HT1A receptors (at post- and pre-synaptic levels, respectively). In the medial prefrontal cortex, noradrenaline levels were moderately but significantly increased by F15063 at 2.5 mg/kg. In conclusion, whereas SSR181507 exhibits (partial) agonism at dopamine D2 and 5-HT1A receptors, F15063 blocks dopamine D2-like receptors whilst activating 5-HT1A receptors. Such a profile distinguishes F15063 from SSR181507 and currently available antipsychotic drugs.
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Affiliation(s)
- Marie-Bernadette Assié
- Neurobiology II Division, Centre de Recherche Pierre Fabre, 17 avenue Jean Moulin, 81106 Castres Cedex, France.
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43
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Simultaneous determination of 5-hydroxyindoles and catechols from urine using polymer monolith microextraction coupled to high-performance liquid chromatography with fluorescence detection. J Chromatogr B Analyt Technol Biomed Life Sci 2009; 877:1847-55. [DOI: 10.1016/j.jchromb.2009.05.006] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2009] [Revised: 04/30/2009] [Accepted: 05/07/2009] [Indexed: 11/24/2022]
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45
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Karim MM, Alam SM, Lee SH. Spectrofluorimetric Estimation of Norepinephrine Using Ethylenediamine Condensation Method. J Fluoresc 2007; 17:427-36. [PMID: 17492368 DOI: 10.1007/s10895-007-0188-y] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2007] [Accepted: 03/28/2007] [Indexed: 10/23/2022]
Abstract
A simple and sensitive method for the determination of norepinephrine is described. Norepinephrine (NE) was oxidized by mercury (II) nitrate and the oxidation product was condensed with ethylenediamine (EDA) to form a strong fluorescent compound. The addition of acetone enhances the light intensity. The measurement was carried out at 507 nm with excitation at 420 nm. A linear relationship was obtained between the fluorescence intensity and norepinephrine concentration in the range of 0.01 microM-0.014 mM; the correlation coefficient and the detection limit are 0.99813 and 2.5 nM, respectively. The interference from dopamine (DA) can be eliminated by first derivative synchronous fluorimetric method using peak to zero technique. The recovery efficiency was performed using known amounts of norepinephrine in urine sample and the results indicate a 95-98.62% recovery. The proposed method was also applied to the determination of norepinephrine in injections solution. The reaction mechanism was also described.
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46
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Parrot S, Lambás-Señas L, Sentenac S, Denoroy L, Renaud B. Highly sensitive assay for the measurement of serotonin in microdialysates using capillary high-performance liquid chromatography with electrochemical detection. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 850:303-9. [PMID: 17166782 DOI: 10.1016/j.jchromb.2006.11.045] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2006] [Revised: 11/15/2006] [Accepted: 11/28/2006] [Indexed: 11/23/2022]
Abstract
A highly sensitive isocratic capillary high-performance liquid chromatographic (HPLC) method with electrochemical detection (ED) for the simultaneous measurement of serotonin (5-hydroxytryptamine, 5-HT) and its metabolite 5-hydroxyindole-3-acetic acid (5-HIAA) in microdialysates has been developed using a 0.5 mm i.d. capillary column and a 11-nL detection cell. This method, validated on both pharmacological and analytical bases, can be performed using injection volumes as low as 1 microL. The limits of detection were 5.6 x 10(-11)mol/L and 3.0 x 10(-9)mol/L for 5-HT and 5-HIAA. Several applications of the present method are given on microdialysates from rodent brain and human spinal cord.
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Affiliation(s)
- Sandrine Parrot
- NEUROCHEM, Institut Fédératif des Neurosciences de Lyon, Plate-forme de Physiologie, Université Lyon 1, France.
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47
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Peng Q, Jiang C. A New Spectrofluorimetric Method for Determination of Trace Amounts 5-Hydroxytryptamine in Human Urine and Serum. J Fluoresc 2007; 17:339-43. [PMID: 17440797 DOI: 10.1007/s10895-007-0177-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2007] [Accepted: 02/22/2007] [Indexed: 10/23/2022]
Abstract
A new spectrofluorimetric method was developed for the determination of trace amount of 5-hydroxytryptamine (5-HT) in human urine and serum samples. In the NaAc-HAc buffer solution of pH=5.80, 5-HT can react with formaldehyde-acetylacetone system to form a new compound which sends yellow green fluorescence at 533 nm and the enhanced fluorescence intensity is in proportion to the concentration of 5-HT. Optimum conditions for the determination of 5-HT were also investigated. The dynamic range and detection limit for the determination of 5-HT are 5.35 x 10(-7) approximately 1.07 x 10(-4) mol/L and 2.08 x 10(-7) mol/L, respectively. The developed method is simple, practical and can be successfully applied to determination of 5-HT in human urine and serum samples. Moreover, the enhancement mechanisms of the fluorescence intensity in the 5-HT - formaldehyde-acetylacetone system have been also discussed.
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Affiliation(s)
- Qian Peng
- College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan 250014, China
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48
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Tsunoda M. Recent advances in methods for the analysis of catecholamines and their metabolites. Anal Bioanal Chem 2006; 386:506-14. [PMID: 16924378 DOI: 10.1007/s00216-006-0675-z] [Citation(s) in RCA: 133] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2006] [Revised: 05/05/2006] [Accepted: 07/07/2006] [Indexed: 10/24/2022]
Abstract
Catecholamines, for example epinephrine, norepinephrine, and dopamine, are widely distributed and are important neurotransmitters and hormones in mammalian species. Several methods have been developed for analysis of catecholamines and related compounds. Determination of catecholamines in biological fluids has enabled us to clarify the physiological role played by these amines. Catecholamine levels in plasma and/or urine are also useful for diagnosis of several diseases, for example hypertension, pheochromocytoma, and neuroblastoma. This review covers reports from 2000 to the present of methods for the analysis of catecholamines and their metabolites.
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Affiliation(s)
- Makoto Tsunoda
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo, 113-0033, Japan.
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Rizk P, Salazar J, Raisman-Vozari R, Marien M, Ruberg M, Colpaert F, Debeir T. The alpha2-adrenoceptor antagonist dexefaroxan enhances hippocampal neurogenesis by increasing the survival and differentiation of new granule cells. Neuropsychopharmacology 2006; 31:1146-57. [PMID: 16292321 DOI: 10.1038/sj.npp.1300954] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The generation of new neurons in the hippocampus is a dynamic process regulated by environmental, endocrine, and pharmacological factors. Since enhancement of hippocampal neurogenesis has been associated with learning and memory, and the locus coeruleus-noradrenergic system has been shown to modulate these cognitive functions, we hypothesized that activation of noradrenergic neurotransmission might enhance neurogenesis in the adult hippocampus. To test this hypothesis in vivo, we induced the release of noradrenaline in the hippocampus by blocking presynaptic inhibitory autoreceptors with the selective alpha2-adrenoceptor antagonist dexefaroxan. Confocal microscopy showed that noradrenergic afferents make contact with proliferating and differentiating cells, suggesting a direct noradrenergic influence on neurogenesis. Chronic systemic treatment of rats with dexefaroxan did not affect cell proliferation per se in the dentate gyrus (as monitored by bromodeoxyuridine-labeling), but promoted the long-term survival of newborn neurons by reducing apoptosis. Dexefaroxan treatment also enhanced the number and complexity of the dendritic arborizations of polysialated neural cell adhesion molecule-positive neurons. The trophic effects of dexefaroxan on newborn cells might involve an increase in brain-derived neurotrophic factor, which was upregulated in afferent noradrenergic fiber projection areas and in neurons in the granule cell layer. By promoting the survival of new endogenously formed neurons, dexefaroxan treatment represents a potential therapeutic strategy for maintaining adult neurogenesis in neurodegenerative conditions, such as Alzheimer's disease, that affect the hippocampus.
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Affiliation(s)
- Pamela Rizk
- INSERM U679, Neurology and Experimental Therapeutics, Paris, France
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50
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Kalinin S, Polak PE, Madrigal JLM, Gavrilyuk V, Sharp A, Chauhan N, Marien M, Colpaert F, Feinstein DL. Beta-amyloid-dependent expression of NOS2 in neurons: prevention by an alpha2-adrenergic antagonist. Antioxid Redox Signal 2006; 8:873-83. [PMID: 16771677 DOI: 10.1089/ars.2006.8.873] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The neurotransmitter noradrenaline (NA) exerts important antiinflammatory effects on glial cells including suppression of the inducible form of nitric oxide synthase (NOS2). The authors examined the consequences of manipulating NA in vivo by treating adult rats with the neurotoxin DSP4, which selectively lesions noradrenergic neurons of the locus ceruleus (LC), and reduces cortical NA levels. Following LC lesion, intracortical injection of aggregated amyloid beta 1-42 (Abeta1-42) caused appearance of NOS2 within neurons, and increased neuronal damage assessed by staining for nonphosphorylated neurofilament proteins with antibody SMI-32. Co-treatment with a selective alpha2-adrenergic antagonist reduced neuronal NOS2 staining as well as SMI-32 staining. Neuronal damage was dependent on NOS2 expression since injection of Abeta1-42 into DSP4-treated NOS2-deficient mice did not result in neuronal damage. These results demonstrate that decrease of NA levels in vivo can exacerbate inflammatory responses and neuronal damage due to inflammatory stimuli such as Abeta. These findings suggest that alpha2-adrenergic antagonists could provide therapeutic benefit in neurological diseases such as AD or PD where LC loss is known to occur.
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Affiliation(s)
- Sergey Kalinin
- Department of Anesthesiology, University of Illinois, Chicago, 60612, USA
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