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Zhang J, Yang J, Luo Y, Li J, Gong T, Huang S, Xiong Y, Jiang X. Determination of 23 Amino Acids and Amines in Plasma and Cortex of C57BL/6 Mice with HPLC-FLD. J Chromatogr Sci 2023; 62:44-57. [PMID: 36572394 DOI: 10.1093/chromsci/bmac103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 06/22/2022] [Accepted: 11/24/2022] [Indexed: 01/04/2024]
Abstract
Using 6-aminoquinolyl-N-hydroxysuccinimidyl carbamate as a pre-column derivatization reagent, optimized derivatization and chromatography parameters, a simple high-performance liquid chromatography fluorescence detector (HPLC-FLD) method was developed and validated to determine 23 related amines in plasma and cortex of C57BL/6 mice with cerebral ischemia-reperfusion injury. The prepared samples were separated on a ZORBAX SB-C18 column (4.6 mm × 250 mm, 5 μm) with 60% acetonitrile (ACN) and 20 mM sodium acetate solution (pH adjusted to 5.0 by phosphoric acid). All analytes achieved good separation within 1.2 h at a flow rate of 1 mL/min. The limits of detection and limits of detection quantitation of the method were ranged from (0.1-9.2) to (0.3-30.6) ng/mL, respectively. The analytical method was apt for simultaneously determining 23 amino acids in plasma and cortex. Our results revealed that the relevant amino acids were significantly altered (P < 0.05) in C57BL/6 mice.
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Affiliation(s)
- Jing Zhang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Junqing Yang
- Key Laboratory of Pharmacology of Chongqing, Chongqing Medical University, Chongqing 400016, China
| | - Ying Luo
- Key Laboratory of Pharmacology of Chongqing, Chongqing Medical University, Chongqing 400016, China
| | - Jiansha Li
- Jiangsu Hengrui Pharmaceutical Co. Ltd, Chongqing 400042, China
| | - Tao Gong
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Suqiong Huang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Yan Xiong
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
| | - Xinhui Jiang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing 400016, China
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2
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Carretero VJ, Ramos E, Segura-Chama P, Hernández A, Baraibar AM, Álvarez-Merz I, Muñoz FL, Egea J, Solís JM, Romero A, Hernández-Guijo JM. Non-Excitatory Amino Acids, Melatonin, and Free Radicals: Examining the Role in Stroke and Aging. Antioxidants (Basel) 2023; 12:1844. [PMID: 37891922 PMCID: PMC10603966 DOI: 10.3390/antiox12101844] [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: 09/05/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/29/2023] Open
Abstract
The aim of this review is to explore the relationship between melatonin, free radicals, and non-excitatory amino acids, and their role in stroke and aging. Melatonin has garnered significant attention in recent years due to its diverse physiological functions and potential therapeutic benefits by reducing oxidative stress, inflammation, and apoptosis. Melatonin has been found to mitigate ischemic brain damage caused by stroke. By scavenging free radicals and reducing oxidative damage, melatonin may help slow down the aging process and protect against age-related cognitive decline. Additionally, non-excitatory amino acids have been shown to possess neuroprotective properties, including antioxidant and anti-inflammatory in stroke and aging-related conditions. They can attenuate oxidative stress, modulate calcium homeostasis, and inhibit apoptosis, thereby safeguarding neurons against damage induced by stroke and aging processes. The intracellular accumulation of certain non-excitatory amino acids could promote harmful effects during hypoxia-ischemia episodes and thus, the blockade of the amino acid transporters involved in the process could be an alternative therapeutic strategy to reduce ischemic damage. On the other hand, the accumulation of free radicals, specifically mitochondrial reactive oxygen and nitrogen species, accelerates cellular senescence and contributes to age-related decline. Recent research suggests a complex interplay between melatonin, free radicals, and non-excitatory amino acids in stroke and aging. The neuroprotective actions of melatonin and non-excitatory amino acids converge on multiple pathways, including the regulation of calcium homeostasis, modulation of apoptosis, and reduction of inflammation. These mechanisms collectively contribute to the preservation of neuronal integrity and functions, making them promising targets for therapeutic interventions in stroke and age-related disorders.
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Affiliation(s)
- Victoria Jiménez Carretero
- Department of Pharmacology and Therapeutic, Teófilo Hernando Institute, Faculty of Medicine, Universidad Autónoma de Madrid, Av. Arzobispo Morcillo 4, 28029 Madrid, Spain
| | - Eva Ramos
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
| | - Pedro Segura-Chama
- Investigador por México-CONAHCYT, Instituto Nacional de Psiquiatría "Ramón de la Fuente Muñiz", Calzada México-Xochimilco 101, Huipulco, Tlalpan, Mexico City 14370, Mexico
| | - Adan Hernández
- Institute of Neurobiology, Universidad Nacional Autónoma of México, Juriquilla, Santiago de Querétaro 76230, Querétaro, Mexico
| | - Andrés M Baraibar
- Department of Neurosciences, Universidad del País Vasco UPV/EHU, Achucarro Basque Center for Neuroscience, Barrio Sarriena, s/n, 48940 Leioa, Spain
| | - Iris Álvarez-Merz
- Department of Pharmacology and Therapeutic, Teófilo Hernando Institute, Faculty of Medicine, Universidad Autónoma de Madrid, Av. Arzobispo Morcillo 4, 28029 Madrid, Spain
| | - Francisco López Muñoz
- Faculty of Health Sciences, University Camilo José Cela, C/Castillo de Alarcón 49, Villanueva de la Cañada, 28692 Madrid, Spain
- Neuropsychopharmacology Unit, Hospital 12 de Octubre Research Institute (i + 12), Avda. Córdoba, s/n, 28041 Madrid, Spain
| | - Javier Egea
- Molecular Neuroinflammation and Neuronal Plasticity Research Laboratory, Hospital Universitario Santa Cristina, Health Research Institute, Hospital Universitario de la Princesa, 28006 Madrid, Spain
| | - José M Solís
- Neurobiology-Research Service, Hospital Ramón y Cajal, Carretera de Colmenar Viejo, Km. 9, 28029 Madrid, Spain
| | - Alejandro Romero
- Department of Pharmacology and Toxicology, Faculty of Veterinary Medicine, Complutense University of Madrid, 28040 Madrid, Spain
| | - Jesús M Hernández-Guijo
- Department of Pharmacology and Therapeutic, Teófilo Hernando Institute, Faculty of Medicine, Universidad Autónoma de Madrid, Av. Arzobispo Morcillo 4, 28029 Madrid, Spain
- Ramón y Cajal Institute for Health Research (IRYCIS), Hospital Ramón y Cajal, Carretera de Colmenar Viejo, Km. 9, 28029 Madrid, Spain
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3
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Alhusban AA, Hammad AM, Alzaghari LF, Shallan AI, Shnewer K. Rapid and sensitive HPLC-MS/MS method for the quantification of dopamine, GABA, serotonin, glutamine and glutamate in rat brain regions after exposure to tobacco cigarettes. Biomed Chromatogr 2023; 37:e5513. [PMID: 36129838 DOI: 10.1002/bmc.5513] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 09/14/2022] [Accepted: 09/19/2022] [Indexed: 12/15/2022]
Abstract
Tobacco smoking is a preventable main cause of fatal diseases. Accurate measurements of the effects it has on neurotransmitters are essential in developing new strategies for smoking cessation. Moreover, measurements of neurotransmitter levels can aid in developing drugs that counteract the effects of smoking. The aim of this study is to develop and validate a fast, simultaneous and sensitive method for measuring the levels of neurotransmitters in rat brain after the exposure of tobacco cigarettes. The selected neurotransmitters include dopamine, GABA, serotonin, glutamine and glutamate. The method is based on high-performance liquid chromatography-tandem mass spectrometry. Chromatographic separation was achieved within 3 min using a Zorbax SB C18 column (3.0 × 100 mm, 1.8 μm particle size). The mobile phase consisted of HPLC-grade water and acetonitrile each containing 0.3% heptafluorobutyric acid and 0.5% formic acid at gradient conditions. The linear range was 0.015-0.07, 825-7,218, 140-520, 63.42-160.75 and 38.25 × 103 to 110.35 × 103 ng/ml for dopamine, GABA, serotonin, glutamine and glutamate, respectively. Inter- and intra-run accuracy were in the range 97.82-103.37% with a precision (CV%) of ≤0.90%. The results revealed that 4 weeks of cigarette exposure significantly increased neurotransmitter levels after exposure to tobacco cigarettes in various brain regions, including the hippocampus and the amygdala. This increase in neurotransmitters levels may in turn activate the nicotine dependence pathway.
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Affiliation(s)
- Ala A Alhusban
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Alaa M Hammad
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Lujain F Alzaghari
- Department of Pharmacy, Faculty of Pharmacy, Al-Zaytoonah University of Jordan, Amman, Jordan
| | - Aliaa I Shallan
- Department of Analytical Chemistry, Faculty of Pharmacy, Helwan University, Cairo, Egypt
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4
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Zhang J, Yang J, Luo Y, Li J, Gong T, Huang S, Xiong Y, Jiang X. Determination of 23 related analytes in bone marrow fluid and hippocampus of C57BL/6 mice on cerebral ischemia-reperfusion injury by HPLC-FLD. Biomed Chromatogr 2022; 36:e5435. [PMID: 35763335 DOI: 10.1002/bmc.5435] [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: 02/12/2022] [Revised: 05/27/2022] [Accepted: 06/23/2022] [Indexed: 11/10/2022]
Abstract
The study of brain diseases has long been of interest to researchers worldwide, and stroke is the third leading cause of death that threatens human health. At the same time, a cerebral ischemia-reperfusion injury is closely associated with high rates of disability and mortality. The conditions of the 6-Aminoquinolyl N-hydroxysccinimidyl carbamate (AQC) method for the derivatization of amino acids in the bone marrow fluid and hippocampus of C57BL/6 mice with cerebral ischemia/reperfusion injury were explored and optimized, such as the column temperature, concentration of derivatization reagents, and mobile phase concentration were investigated and optimized. The mobile phase consisted of 20 mM sodium acetate solution (phosphoric acid to adjust pH 5.0) and 60% acetonitrile solution at the flow rate of 1 mL•min-1 . The 23 analytes were separated and determined in a gradient elution procedure; the correlation coefficient r was greater than 0.9990 in the range of 0.1-8.0 μg•mL-1 . The results showed that the content of relevant analytes was significantly changed in the cerebral ischemia-reperfusion injury model, the method was suitable for the simultaneous determination of 23 amino acids in bone marrow fluid and hippocampus of C57BL/6 mice.
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Affiliation(s)
- Jing Zhang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Junqing Yang
- Key Laboratory of Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Ying Luo
- Key Laboratory of Pharmacology of Chongqing, Chongqing Medical University, Chongqing, China
| | - Jiansha Li
- Jiangsu Hengrui Pharmaceutical Co.Ltd., Chongqing, China
| | - Tao Gong
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Suqiong Huang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Yan Xiong
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, China
| | - Xinhui Jiang
- Chongqing Research Center for Pharmaceutical Engineering, School of Pharmacy, Chongqing Medical University, Chongqing, China
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5
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Wu Z, Lin D, Li Y. Pushing the frontiers: tools for monitoring neurotransmitters and neuromodulators. Nat Rev Neurosci 2022; 23:257-274. [PMID: 35361961 PMCID: PMC11163306 DOI: 10.1038/s41583-022-00577-6] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/21/2022] [Indexed: 12/26/2022]
Abstract
Neurotransmitters and neuromodulators have a wide range of key roles throughout the nervous system. However, their dynamics in both health and disease have been challenging to assess, owing to the lack of in vivo tools to track them with high spatiotemporal resolution. Thus, developing a platform that enables minimally invasive, large-scale and long-term monitoring of neurotransmitters and neuromodulators with high sensitivity, high molecular specificity and high spatiotemporal resolution has been essential. Here, we review the methods available for monitoring the dynamics of neurotransmitters and neuromodulators. Following a brief summary of non-genetically encoded methods, we focus on recent developments in genetically encoded fluorescent indicators, highlighting how these novel indicators have facilitated advances in our understanding of the functional roles of neurotransmitters and neuromodulators in the nervous system. These studies present a promising outlook for the future development and use of tools to monitor neurotransmitters and neuromodulators.
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Affiliation(s)
- Zhaofa Wu
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing, China
- PKU-IDG/McGovern Institute for Brain Research, Beijing, China
| | - Dayu Lin
- Neuroscience Institute, New York University Grossman School of Medicine, New York, NY, USA
- Department of Psychiatry, New York University Grossman School of Medicine, New York, NY, USA
| | - Yulong Li
- State Key Laboratory of Membrane Biology, Peking University School of Life Sciences, Beijing, China.
- PKU-IDG/McGovern Institute for Brain Research, Beijing, China.
- Peking-Tsinghua Center for Life Sciences, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing, China.
- Chinese Institute for Brain Research, Beijing, China.
- Institute of Molecular Physiology, Shenzhen Bay Laboratory, Shenzhen, China.
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6
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Shi Z, Wu X, Zou Z, Yu L, Hu F, Li Y, Guo C, Li CM. Screen-printed analytical strip constructed with bacteria-templated porous N-doped carbon nanorods/Au nanoparticles for sensitive electrochemical detection of dopamine molecules. Biosens Bioelectron 2021; 186:113303. [PMID: 33990036 DOI: 10.1016/j.bios.2021.113303] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 04/21/2021] [Accepted: 05/01/2021] [Indexed: 12/17/2022]
Abstract
Dopamine (DA) as an important neurotransmitter plays an important role in physiological activities, and its abnormal level can cause diseases such as Parkinson's disease. However, the clinical analysis of DA mainly relies on time-consuming and expensive liquid chromatography and molecular spectrometer. We present here a design and fabrication of inexpensive strip sensor constructed from screen printed electrodes for sensitive and selective detection of DA. The ink used for printing the strips contains Shewanella putrefaciens-templated porous N-doped carbon nanorods (N-doped CN) and Au nanoparticles (Au NPs), in which the N-doping enhances CN's negative charge to electrostatically attract the positively charged DA with strong adsorption for achieving fast electron transfer. Moreover, results indicate that the Au NPs impregnation in N-doped CN renders much more catalytic reaction sites toward DA oxidation current. The strip sensor exhibits high sensitivity for DA detection with a broad linear range of 0.02-700 μM and a low detection limit of 0.007 μM as well as good selectivity and superior flexibility for great potential in wearable applications. The strip sensor further performs an accurate detection of DA in human serum, providing a powerful analytical tool for diagnosis of DA related diseases in clinical analysis.
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Affiliation(s)
- Zhuanzhuan Shi
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Xiaoshuai Wu
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Zhuo Zou
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Ling Yu
- Institute for Clean Energy and Advanced Materials, Southwest University, Chongqin, 400715, China
| | - Fangxin Hu
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Yuan Li
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Chunxian Guo
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China
| | - Chang Ming Li
- Institute of Materials Science and Devices, School of Materials Science and Engineering, Suzhou University of Science and Technology, Suzhou, 215011, China; Institute for Clean Energy and Advanced Materials, Southwest University, Chongqin, 400715, China; Institute of Advanced Cross-field Science, Qingdao University, Qingdao, 266071, PR China.
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7
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Twenty years of amino acid determination using capillary electrophoresis: A review. Anal Chim Acta 2021; 1174:338233. [DOI: 10.1016/j.aca.2021.338233] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2020] [Revised: 01/14/2021] [Accepted: 01/16/2021] [Indexed: 12/28/2022]
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8
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Álvarez-Merz I, Luengo JG, Muñoz MD, Hernández-Guijo JM, Solís JM. Hypoxia-induced depression of synaptic transmission becomes irreversible by intracellular accumulation of non-excitatory amino acids. Neuropharmacology 2021; 190:108557. [PMID: 33848510 DOI: 10.1016/j.neuropharm.2021.108557] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2020] [Revised: 03/10/2021] [Accepted: 04/02/2021] [Indexed: 10/21/2022]
Abstract
The intracellular accumulation of some amino acids (AAs), mainly glutamine, can contribute to brain edema observed during liver failure. We recently demonstrated that individual applications of high concentrations (10 mM) of some non-excitatory AAs increase the electrical resistance of hippocampal slices, indicating cell swelling. Therefore, we pondered whether an AA mixture's application might cause cell swelling at a physiological concentration range. In rat hippocampal slices, we carried out extra- and intracellular electrophysiological recordings and AAs analysis to address this question. We applied a mixture of 19 AAs at their plasmatic concentrations (Plasma solution: Ala, Gly, Gln, His, Ser, Tau, Thr, Arg, Leu, Met, Pro, Val, Asn, Cys, Phe, Ile, Lys, Tyr, and Trp). This solution was afterward divided into two according to the individual AAs at 10 mM concentration inducing synaptic potentiation (Plasma1, containing the first seven AAs of Plasma) or not (Plasma2, with the remaining AAs). Plasma application increased evoked field potentials requiring extracellular chloride. This effect was mimicked by the Plasma1 but not the Plasma2 solution. Plasma1-induced potentiation was independent of changes in release probability, basic electrophysiological membrane properties, and NMDAR activation. AAs in Plasma1 act cooperatively to accumulate intracellularly and to induce synaptic potentiation. In the presence of Plasma1, the reversible synaptic depression caused by a 40-min hypoxia period turned into an irreversible disappearance of synaptic potentials through an NMDAR-dependent mechanism. The presence of a system A transport inhibitor did not block Plasma1-mediated effects. These results indicate that cell swelling, induced by the accumulation of non-excitotoxic AAs through unidentified transporters, might foster deleterious effects produced by hypoxia-ischemia episodes.
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Affiliation(s)
- Iris Álvarez-Merz
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, IRYCIS, 28034, Madrid, Spain; Departamento de Farmacología y Terapeútica, ITH, Facultad de Medicina, Universidad Autónoma de Madrid, IRYCIS, Avda. Arzobispo Morcillo 4, 28029, Madrid, Spain
| | - Javier G Luengo
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, IRYCIS, 28034, Madrid, Spain; Departamento de Farmacología y Terapeútica, ITH, Facultad de Medicina, Universidad Autónoma de Madrid, IRYCIS, Avda. Arzobispo Morcillo 4, 28029, Madrid, Spain
| | - María-Dolores Muñoz
- Unidad de Neurología Experimental, Hospital Universitario Ramón y Cajal, IRYCIS, Madrid, 28034, Spain
| | - Jesús M Hernández-Guijo
- Departamento de Farmacología y Terapeútica, ITH, Facultad de Medicina, Universidad Autónoma de Madrid, IRYCIS, Avda. Arzobispo Morcillo 4, 28029, Madrid, Spain
| | - José M Solís
- Servicio de Neurobiología-Investigación, Hospital Universitario Ramón y Cajal, IRYCIS, 28034, Madrid, Spain.
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9
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Wang W, Liu X, Yang Z, Shen H, Liu L, Yu Y, Zhang T. Levodopa Improves Cognitive Function and the Deficits of Structural Synaptic Plasticity in Hippocampus Induced by Global Cerebral Ischemia/Reperfusion Injury in Rats. Front Neurosci 2020; 14:586321. [PMID: 33328857 PMCID: PMC7734175 DOI: 10.3389/fnins.2020.586321] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Accepted: 10/27/2020] [Indexed: 12/16/2022] Open
Abstract
The cognitive impairment caused by cerebral ischemia/reperfusion is an unsolved problem in the field of international neural rehabilitation. Not only ameliorates the consciousness level of certain patients who suffered from ischemia-reperfusion injury and were comatose for a long time period after cerebral resuscitation treatment, but levodopa also improves the symptoms of neurological deficits in rats with global cerebral ischemia-reperfusion injury. However, Levodopa has not been widely used as a brain protection drug after cardiopulmonary resuscitation, because of its unclear repair mechanism. Levodopa was used to study the neuroplasticity in the hippocampus of global cerebral ischemia/reperfusion injury rat model, established by Pulsinelli's four-vessel occlusion method. Levodopa was injected intraperitoneally at 50 mg/kg/d for 7 consecutive days after 1st day of surgery. The modified neurological function score, Morris water maze, magnetic resonance imaging, Nissl and TH staining, electron microscopy and western blot were used in the present study. The results showed that levodopa improved the neurological function and learning and memory of rats after global cerebral ischemia/reperfusion injury, improved the integrity of white matter, and density of gray matter in the hippocampus, increased the number of synapses, reduced the delayed neuronal death, and increased the expression of synaptic plasticity-related proteins (BDNF, TrkB, PSD95, and Drebrin) in the hippocampus. In conclusion, levodopa can improve cognitive function after global cerebral ischemia/reperfusion injury by enhancing the synaptic plasticity in the hippocampus.
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Affiliation(s)
- Wenzhu Wang
- Chinese Institute of Rehabilitation Science, China Rehabilitation Science Institute, Beijing, China.,Beijing Key Laboratory of Neural Injury and Rehabilitation, China Rehabilitation Research Center, Beijing, China
| | - Xu Liu
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China
| | - Zhengyi Yang
- Institute of Automation, Chinese Academy of Sciences, Beijing, China
| | - Hui Shen
- School of Biomedical Engineering, Tianjin Medical University, Tianjin, China
| | - Lixu Liu
- School of Rehabilitation Medicine, Capital Medical University, Beijing, China.,Beijing Bo'ai Hospital, China Rehabilitation Research Center, Beijing, China
| | - Yan Yu
- Chinese Institute of Rehabilitation Science, China Rehabilitation Science Institute, Beijing, China.,Beijing Key Laboratory of Neural Injury and Rehabilitation, China Rehabilitation Research Center, Beijing, China.,Center of Neural Injury and Repair, Beijing Institute for Brain Disorders, Beijing, China
| | - Tong Zhang
- Chinese Institute of Rehabilitation Science, China Rehabilitation Science Institute, Beijing, China.,Beijing Key Laboratory of Neural Injury and Rehabilitation, China Rehabilitation Research Center, Beijing, China.,Institute of Automation, Chinese Academy of Sciences, Beijing, China
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10
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He Q, Kang X, Fu F, Ren M, Liao F. The Synthesis of rGO/Ni/Co Composite and Electrochemical Determination of Dopamine. J Inorg Organomet Polym Mater 2020. [DOI: 10.1007/s10904-020-01738-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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11
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Zhong ZF, Han J, Zhang JZ, Xiao Q, Chen JY, Zhang K, Hu J, Chen LD. Neuroprotective Effects of Salidroside on Cerebral Ischemia/Reperfusion-Induced Behavioral Impairment Involves the Dopaminergic System. Front Pharmacol 2019; 10:1433. [PMID: 31920641 PMCID: PMC6923222 DOI: 10.3389/fphar.2019.01433] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2019] [Accepted: 11/11/2019] [Indexed: 12/14/2022] Open
Abstract
Salidroside, a phenylpropanoid glycoside, is the main bioactive component of Rhodiola rosea L. Salidroside has prominent anti-stroke effects in cerebral ischemia/reperfusion models. However, the underlying mechanisms of its actions are poorly understood. This study examined the anti-stroke effects of salidroside in middle cerebral artery occlusion (MCAO)-induced rat model of stroke and its potential mechanisms involving the dopaminergic system. Salidroside administration increased the levels of dopamine (DA), homovanillic acid (HVA), and 3,4-dihydroxyphenylacetic acid (DOPAC) in the ipsilateral striatum after induction of transient ischemia, which were assessed using microdialysis with high-performance liquid chromatography coupled with electrochemical detection (HPLC-ECD). Furthermore, treatment with salidroside ameliorated neurobehavioral impairment, assessed with the modified neurological severity scores (mNSS), the balance beam test, and the foot fault test. Moreover, enzyme-linked immunosorbent assay (ELISA) suggested that MCAO-induced reduction in monoamine oxidase (MAO) was inhibited by salidroside. Immunohistochemical and immunofluorescence analyses revealed high level of tyrosine hydroxylase (TH) in the ipsilateral striatal caudate putamen (CPu) after cerebral ischemia/reperfusion, which could be further elevated by salidroside. In addition, salidroside could reverse the decreased immunoreactivity of TH in the substantia nigra pars compacta (SNpc). These results suggest that the anti-stroke effects of salidroside in MCAO-induced cerebral ischemia/reperfusion may involve the modulation of monoamine metabolism in the striatum and SNpc, which may be related to the function of the dopaminergic system in the rat brain.
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Affiliation(s)
- Zhi-Feng Zhong
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China.,Department of High Altitude Operational Medicine, College of High Altitude Military Medicine, Army Medical University (Third Military Medical University), Chongqing, China.,Fujian Key Laboratory of Natural Medicine Pharmacology, Fujian Medical University, Fuzhou, China
| | - Jing Han
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China
| | - Ji-Zhou Zhang
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China
| | - Qing Xiao
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China
| | - Jing-Yan Chen
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China
| | - Kai Zhang
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China
| | - Juan Hu
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China.,School of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
| | - Li-Dian Chen
- Institute of Materia Medica, Fujian Academy of Traditional Chinese Medicine, Fuzhou, China.,School of Rehabilitation Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou, China
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12
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Lendor S, Hassani SA, Boyaci E, Singh V, Womelsdorf T, Pawliszyn J. Solid Phase Microextraction-Based Miniaturized Probe and Protocol for Extraction of Neurotransmitters from Brains in Vivo. Anal Chem 2019; 91:4896-4905. [DOI: 10.1021/acs.analchem.9b00995] [Citation(s) in RCA: 51] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Sofia Lendor
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Seyed-Alireza Hassani
- Department of Psychology, Vanderbilt University, PMB 407817, 2301 Vanderbilt Place, Nashville, Tennessee 37240, United States
- Department of Biology, Centre for Vision Research, York University, Toronto, Ontario M6J 1P3, Canada
| | - Ezel Boyaci
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Varoon Singh
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
| | - Thilo Womelsdorf
- Department of Psychology, Vanderbilt University, PMB 407817, 2301 Vanderbilt Place, Nashville, Tennessee 37240, United States
- Department of Biology, Centre for Vision Research, York University, Toronto, Ontario M6J 1P3, Canada
| | - Janusz Pawliszyn
- Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, Ontario N2L 3G1, Canada
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13
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Zhang C, Ren J, Zhou J, Cui M, Li N, Han B, Chen Q. Facile fabrication of a 3,4,9,10-perylene tetracarboxylic acid functionalized graphene–multiwalled carbon nanotube–gold nanoparticle nanocomposite for highly sensitive and selective electrochemical detection of dopamine. Analyst 2018; 143:3075-3084. [DOI: 10.1039/c8an00559a] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
A PTCA-RGO-MWCNT-Au NP nanocomposite was facilely fabricated for highly sensitive and selective electrochemical detection of dopamine.
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Affiliation(s)
- Cong Zhang
- Department of Chemistry
- School of Sciences
- Hebei University of Science and Technology
- Shijiazhuang 050018
- PR China
| | - Jujie Ren
- Department of Chemistry
- School of Sciences
- Hebei University of Science and Technology
- Shijiazhuang 050018
- PR China
| | - Jiexin Zhou
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
- Tianjin 300071
| | - Min Cui
- Department of Chemistry
- School of Sciences
- Hebei University of Science and Technology
- Shijiazhuang 050018
- PR China
| | - Na Li
- Department of Chemistry
- School of Sciences
- Hebei University of Science and Technology
- Shijiazhuang 050018
- PR China
| | - Bingkai Han
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
- Tianjin 300071
| | - Qiang Chen
- The Key Laboratory of Bioactive Materials
- Ministry of Education
- College of Life Science
- Nankai University
- Tianjin 300071
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14
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Xiao B, Sun Z, Cao F, Wang L, Liao Y, Liu X, Pan R, Chang Q. Brain Pharmacokinetics and the Pharmacological Effects on Striatal Neurotransmitter Levels of Pueraria lobata Isoflavonoids in Rat. Front Pharmacol 2017; 8:599. [PMID: 28928659 PMCID: PMC5591880 DOI: 10.3389/fphar.2017.00599] [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] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Accepted: 08/18/2017] [Indexed: 11/29/2022] Open
Abstract
Isoflavonoids are putatively active components of Pueraria lobata and has been demonstrated prominent neuro-protection effect against cerebrovascular disorders, hypertension or Parkinson's disease (PD). However, the molecular basis for the beneficial effect of Pueraria lobata on nervous systems has not been well revealed. The present study aims to assess striatum exposure to main active isoflavonoids and changes of striatal extracellular neurotransmitters levels in rat brain after intravenous administration of Pueraria lobata isoflavonoids extracts (PLF), to further elucidate its' substantial bases for neuro activities. Fifteen rats were divided into 3 groups (five rats in each group) to receive a dose of PLF at 80 or 160 mg/kg or normal saline (vehicle), respectively. An LC-MS/MS method was employed to determine the concentrations of five main isoflavonoids and multiple neurotransmitters in microdialysate from striatal extracellular fluid (ECF) of the rats. The exposed quantities of puerarin (PU), 3′-methoxypuerarin (MPU), daidzein-8-C-apiosyl-(1-6)-glucoside (DAC), and 3′-hydroxypuerarin (HPU) in striatum were dose-dependent. The content of daidzein (DAZ) was too low to be detected in all dialysate samples through the experiment. Optimal dose PLF (80 mg/kg) promoted DA metabolism and inhibited 5-HT metabolism. No obvious change in the level of GLu was determined. The concentration of GABA presented a temporary decline firstly and then a gradual uptrend followed by a further downtrend. Higher dose (160 mg/kg) PLF could enhance the metabolism of both DA and 5-HT, and lower the extracellular level of GLu, without changing GABA concentrations, which might result in alleviation on excitatory toxicity under conditions, such as ischemia. The results infer that different dose of PLF should be chosen to achieve appropriate neurochemical modulation effects under conditions, such as hypertension or ischemia/stroke. These findings may significantly contribute to a better understanding of the neuroprotective effect of Pueraria lobata and provide new insights into its application toward neuro-degenerative diseases in the future.
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Affiliation(s)
- Bingxin Xiao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China.,Department of Clinical Pharmacology, The First People's Hospital of LianyungangLianyungang, China
| | - Zengxian Sun
- Department of Clinical Pharmacology, The First People's Hospital of LianyungangLianyungang, China
| | - Fangrui Cao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Lisha Wang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Yonghong Liao
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Xinmin Liu
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Ruile Pan
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
| | - Qi Chang
- Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing, China
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15
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Polcari D, Perry SC, Pollegioni L, Geissler M, Mauzeroll J. Localized Detection of d
-Serine by using an Enzymatic Amperometric Biosensor and Scanning Electrochemical Microscopy. ChemElectroChem 2017. [DOI: 10.1002/celc.201600766] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- David Polcari
- Department of Chemistry; McGill University, 8; 01 Sherbrooke Street West Montreal, QC H3 A 0B8 Canada
| | - Samuel C. Perry
- Department of Chemistry; McGill University, 8; 01 Sherbrooke Street West Montreal, QC H3 A 0B8 Canada
| | - Loredano Pollegioni
- Dipartimento di Biotecnologie e Scienze della Vita; Università degli studi deII'Insubria; via J. H. Dunant 3 21100 Varese ltaly
- The Protein Factory; Centro Interuniversitario di Biotecnologie Proteiche; Politecnico di Milano; Università degli Studi deII'Insubria; Varese Italy
| | - Matthias Geissler
- Life Sciences Division; National Research Council of Canada; 75 de Mortagne Boulevard Boucherville, QC 4B 6Y4 Canada
| | - Janine Mauzeroll
- Department of Chemistry; McGill University, 8; 01 Sherbrooke Street West Montreal, QC H3 A 0B8 Canada
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16
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Preparation of quantum dots CdTe decorated graphene composite for sensitive detection of uric acid and dopamine. Anal Biochem 2017; 519:92-99. [DOI: 10.1016/j.ab.2016.12.001] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2016] [Revised: 11/30/2016] [Accepted: 12/01/2016] [Indexed: 11/22/2022]
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17
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Glial GABA Transporters as Modulators of Inhibitory Signalling in Epilepsy and Stroke. ADVANCES IN NEUROBIOLOGY 2017; 16:137-167. [PMID: 28828609 DOI: 10.1007/978-3-319-55769-4_7] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Imbalances in GABA-mediated tonic inhibition are involved in several pathophysiological conditions. A classical way of controlling tonic inhibition is through pharmacological intervention with extrasynaptic GABAA receptors that sense ambient GABA and mediate a persistent GABAergic conductance. An increase in tonic inhibition may, however, also be obtained indirectly by inhibiting glial GABA transporters (GATs). These are sodium-coupled membrane transport proteins that normally act to terminate GABA neurotransmitter action by taking up GABA into surrounding astrocytes. The aim of the review is to provide an overview of glial GATs in regulating tonic inhibition, especially in epilepsy and stroke. This entails a comprehensive summary of changes known to occur in GAT expression levels and signalling following epileptic and ischemic insults. Further, we discuss the accumulating pharmacological evidence for targeting GATs in these diseases.
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Cheng Y, Wu J, Guo C, Li XG, Ding B, Li Y. A facile water-stable MOF-based “off–on” fluorescent switch for label-free detection of dopamine in biological fluid. J Mater Chem B 2017; 5:2524-2535. [DOI: 10.1039/c7tb00099e] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
An Abtz–CdI2–MOF was developed as an “off–on” fluorescent switch for label-free detection of dopamine without any surface modification or functionalization.
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Affiliation(s)
- Yue Cheng
- Key Laboratory of Inorganic–Organic Hybrid Functional Materials Chemistry (Tianjin Normal University)
- Tianjin Key Laboratory of Structure and Performance for Functional Molecule
- College of Chemistry
- Tianjin Normal University
- Tianjin
| | - Jie Wu
- Key Laboratory of Inorganic–Organic Hybrid Functional Materials Chemistry (Tianjin Normal University)
- Tianjin Key Laboratory of Structure and Performance for Functional Molecule
- College of Chemistry
- Tianjin Normal University
- Tianjin
| | - Chao Guo
- Key Laboratory of Inorganic–Organic Hybrid Functional Materials Chemistry (Tianjin Normal University)
- Tianjin Key Laboratory of Structure and Performance for Functional Molecule
- College of Chemistry
- Tianjin Normal University
- Tianjin
| | - Xin-Ge Li
- Key Laboratory of Inorganic–Organic Hybrid Functional Materials Chemistry (Tianjin Normal University)
- Tianjin Key Laboratory of Structure and Performance for Functional Molecule
- College of Chemistry
- Tianjin Normal University
- Tianjin
| | - Bin Ding
- Key Laboratory of Inorganic–Organic Hybrid Functional Materials Chemistry (Tianjin Normal University)
- Tianjin Key Laboratory of Structure and Performance for Functional Molecule
- College of Chemistry
- Tianjin Normal University
- Tianjin
| | - Yan Li
- Key Laboratory of Inorganic–Organic Hybrid Functional Materials Chemistry (Tianjin Normal University)
- Tianjin Key Laboratory of Structure and Performance for Functional Molecule
- College of Chemistry
- Tianjin Normal University
- Tianjin
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19
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Chiral separations for d -amino acid analysis in biological samples. J Pharm Biomed Anal 2016; 130:100-109. [DOI: 10.1016/j.jpba.2016.06.054] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 06/29/2016] [Accepted: 06/30/2016] [Indexed: 11/20/2022]
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20
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Roychoudhury A, Basu S, Jha SK. Dopamine biosensor based on surface functionalized nanostructured nickel oxide platform. Biosens Bioelectron 2016; 84:72-81. [DOI: 10.1016/j.bios.2015.11.061] [Citation(s) in RCA: 116] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2015] [Revised: 11/19/2015] [Accepted: 11/20/2015] [Indexed: 12/11/2022]
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21
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Van Schoors J, Viaene J, Van Wanseele Y, Smolders I, Dejaegher B, Vander Heyden Y, Van Eeckhaut A. An improved microbore UHPLC method with electrochemical detection for the simultaneous determination of low monoamine levels in in vivo brain microdialysis samples. J Pharm Biomed Anal 2016; 127:136-46. [DOI: 10.1016/j.jpba.2016.01.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2015] [Revised: 12/19/2015] [Accepted: 01/07/2016] [Indexed: 12/26/2022]
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22
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Denoroy L, Parrot S. Analysis of Amino Acids and Related Compounds by Capillary Electrophoresis. SEPARATION AND PURIFICATION REVIEWS 2016. [DOI: 10.1080/15422119.2016.1212378] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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23
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Fico D, Pennetta A, De Benedetto GE. Bioanalytical Application of Amino Acid Detection by Capillary Electrophoresis. Methods Mol Biol 2016; 1483:249-276. [PMID: 27645741 DOI: 10.1007/978-1-4939-6403-1_14] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
This chapter illustrates the usefulness of capillary electrophoresis (CE) for the analysis of amino acids, and both normal and chiral separations are covered. In order to provide a general description of the main results and challenges in the biomedical field, some relevant applications and reviews on CE of amino acids are tabulated. Furthermore, some detailed experimental procedures are shown, regarding the CE analysis of amino acids in body fluids, in microdialysate, and released upon hydrolysis of proteins. In particular, the protocols will deal with the following compounds: (1) underivatized aminoacids in blood; (2) γ-Aminobutyric acid, glutamate, and L-Aspartate derivatized with Naphthalene-2,3-dicarboxaldehyde; (3) hydrolysate from bovine serum albumine derivatized with phenylisothiocyanate. By examining these applications on real matrices, the capillary electrophoresis efficiency as tool for Amino Acid analysis can be ascertained.
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Affiliation(s)
- Daniela Fico
- Laboratorio di Spettrometria di Massa Analitica ed Isotopica, Dipartimento di Beni Culturali, Università degli Studi del Salento, Edificio M, Campus Ecotekne, S.P. Lecce-Monteroni, Lecce, 73100, Italy
| | - Antonio Pennetta
- Laboratorio di Spettrometria di Massa Analitica ed Isotopica, Dipartimento di Beni Culturali, Università degli Studi del Salento, Edificio M, Campus Ecotekne, S.P. Lecce-Monteroni, Lecce, 73100, Italy
| | - Giuseppe E De Benedetto
- Laboratorio di Spettrometria di Massa Analitica ed Isotopica, Dipartimento di Beni Culturali, Università degli Studi del Salento, Edificio M, Campus Ecotekne, S.P. Lecce-Monteroni, Lecce, 73100, Italy.
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24
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Cyclodextrin-modified MEKC method for quantification of selected acidic metabolites of catecholamines in the presence of various biogenic amines. Application to diagnosis of neuroblastoma. J Chromatogr B Analyt Technol Biomed Life Sci 2015; 1003:27-34. [DOI: 10.1016/j.jchromb.2015.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2015] [Revised: 09/01/2015] [Accepted: 09/04/2015] [Indexed: 11/19/2022]
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25
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The Possible Damaged Mechanism and the Preventive Effect of Monosialotetrahexosylganglioside in a Rat Model of Cerebral Ischemia-Reperfusion Injury. J Stroke Cerebrovasc Dis 2015; 24:1471-8. [DOI: 10.1016/j.jstrokecerebrovasdis.2015.02.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 02/04/2015] [Accepted: 02/09/2015] [Indexed: 11/18/2022] Open
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26
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Liu Z, Zhang L, He Q, Liu X, Chukwunweike Ikechukwu O, Tong L, Guo L, Yang H, Zhang Q, Zhao H, Gu X. Effect of Baicalin-loaded PEGylated cationic solid lipid nanoparticles modified by OX26 antibody on regulating the levels of baicalin and amino acids during cerebral ischemia–reperfusion in rats. Int J Pharm 2015; 489:131-8. [DOI: 10.1016/j.ijpharm.2015.04.049] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Revised: 03/31/2015] [Accepted: 04/16/2015] [Indexed: 01/31/2023]
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Jin G, He XR, Chen LP. The protective effect of ginko bilboa leaves injection on the brain dopamine in the rat model of cerebral ischemia/reperfusion injury. Afr Health Sci 2014; 14:725-8. [PMID: 25352894 DOI: 10.4314/ahs.v14i3.31] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Ginkgo Bilboa injection has had been clinically applied to restore the damaged cells and tissues due to the ischemia through improving the cerebral blood supply and decreasing the oxygen consumption. OBJECTIVE/AIM To evaluate the Ginkgo Bilboa injection's therapeutic role towards ischemia/ reperfusion (I/R) injury through determination of monoamine neurotransmitter dopamine (DA) in corpus striatum. METHODS After the incomplete global cerebral ischemia and reperfusion models were prepared, rats were randomly assigned into four groups: sham-operated group, ischemia-reperfusion group, nimodipine injection group, and Ginkgo Biloba injection group. The cerebrospinal fluid in the rat brain striatum at different time points was collected with microdialysis, and the level of monoamine neurotransmitters dopamineDA was determined by high performance liquid chromatography (HPLC) with electrochemical detector (ECD). RESULTS The dopamineDA content in cerebral ischemia model group was significantly higher than that in the sham-operated group (P < 0.05) at the 30 min. However, the DA level in nimodipine injection group and Ginkgo Biloba injection group were lower than the model group (P < 0.05). The dopamineDA level in Ginkgo Biloba injection group gradually decreased, and was significantly different from the model group (P < 0.05). CONCLUSION Ginkgo Biloba injection can could significantly inhibit brain I/R injury, as demonstrated by prevention of excessive release of dopamineDA in striatum.
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Affiliation(s)
- Gu Jin
- Traditional Chinese Medicine Pharmacy of PLA General Hospital, Beijing 100853, China
| | - Xin-Rong He
- Traditional Chinese Medicine Pharmacy of PLA General Hospital, Beijing 100853, China
| | - Li-Ping Chen
- Department of traditional chinese medicine of PLA General Hospital, Beijing 100853, China
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30
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Yi DH, Liu H, Chen Y, Li H, Xu T, Liu YF. Ischemic injury of the liver in a porcine model of cardiac death assessed by in vivo microdialysis. Mol Biol Rep 2014; 41:6611-8. [PMID: 25167853 DOI: 10.1007/s11033-014-3544-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2014] [Accepted: 06/20/2014] [Indexed: 01/08/2023]
Abstract
This study aims to evaluate the ischemic injury of the liver in a porcine model of cardiac death assessed by in vivo microdialysis. A porcine model of cardiac death was established by the suffocation method. Metabolic indicators were monitored using the microdialysis technique during warm ischemia time (WIT) and cold ischemia time (CIT). Pathological changes in ischemic-injured livers were observed by haematoxylin-eosin staining. The predictive values of biochemical parameters regarding the liver donor were evaluated by receiver operating characteristic curve analysis. All statistical analyses were conducted using the SPSS 18.0 software (SPSS Inc, Chicago, Illinois, USA). The degree of warm ischemic injury of the livers increased with prolonged WIT. Serum glucose, glycerol, pyruvate, lactic acid levels and lactate-to-pyruvate (L/P) ratio increased gradually during WIT. Results from Pearson correlation analyses indicated that serum lactate level and L/P ratio were positively associated with the degree of warm ischemic injury of the livers. The degree of cold ischemic injury of the livers gradually increased after 12 h CIT. Serum glucose, lactic acid and L/P ratio achieved a peak after 6-8 h of CIT, but gradually decreased with prolonged CIT. The peak of glycerol occurred after 8 h of CIT, while no changes were found with prolonged CIT. Serum pyruvate level exhibited an increasing trend after 12 h CIT. Our results confirmed that serum glucose and lactate levels were negatively correlated with cold ischemic injury of the liver. However, serum glycerol and pyruvate levels showed positive correlations with cold ischemic injury of the liver. The liver donor was unavailable after 30 min WIT and 24 h CIT. The cut-off value of serum lactate level for warm ischemic injury of the livers was 2.374 with a sensitivity (Sen) of 90 % and specificity (Spe) of 95 %; while the L/P radio was 0.026 (Sen = 80 %, Spe = 83 %). In addition, the cut-off values of serum glucose, lactate, glycerol and pyruvate levels for cold ischemic injury of the livers were 0.339 (Sen = 100 %, Spe = 77 %), 1.172 (Sen = 100 %, Spe = 61 %), 56.359 (Sen = 100 %, Spe = 65 %) and 0.020 (Sen = 100 %, Spe = 67 %), respectively. Our findings provide empirical evidences that serum glucose, lactate levels and L/P ratio may be good indicators for the degree of warm ischemic injury of the livers after cardiac death; while serum glucose, lactate, glycerol and pyruvate levels may be important in predicting cold ischemic injury.
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Affiliation(s)
- De-Hui Yi
- Department of Transplantation and Hepatobiliary Surgery, The First Affiliated Hospital of China Medical University, Nanjing Street No. 155, Heping District, Shenyang, 110001, People's Republic of China
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31
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Guan J, Li H, Yan F, Shi S, Wang S. Optimization and validation of a novel CE method for the enantioseparation of pantoprazole and related benzimididazole using a dual chiral selector system. Electrophoresis 2014; 35:2800-6. [DOI: 10.1002/elps.201400305] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2014] [Revised: 07/13/2014] [Accepted: 07/14/2014] [Indexed: 11/09/2022]
Affiliation(s)
- Jin Guan
- School of Applied Chemistry; Shenyang University of Chemical Technology; Shenyang P. R. China
| | - Huan Li
- School of Applied Chemistry; Shenyang University of Chemical Technology; Shenyang P. R. China
| | - Feng Yan
- School of Applied Chemistry; Shenyang University of Chemical Technology; Shenyang P. R. China
| | - Shuang Shi
- School of Applied Chemistry; Shenyang University of Chemical Technology; Shenyang P. R. China
| | - Shilin Wang
- School of Applied Chemistry; Shenyang University of Chemical Technology; Shenyang P. R. China
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32
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Lin WC, Liu WL, Tang WY, Huang CP, Huang HY, Chin TY. Determination of amino acids by microemulsion electrokinetic chromatography laser induced fluorescence method. Electrophoresis 2014; 35:1751-5. [DOI: 10.1002/elps.201300569] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/28/2014] [Accepted: 02/10/2014] [Indexed: 01/01/2023]
Affiliation(s)
- Wei-Cheng Lin
- Center for Nanotechnology; Department of Chemistry; Chung Yuan Christian University; Chung-Li Taiwan
| | - Wan-Ling Liu
- Center for Nanotechnology; Department of Chemistry; Chung Yuan Christian University; Chung-Li Taiwan
| | - Wei-Ying Tang
- Center for Nanotechnology; Department of Chemistry; Chung Yuan Christian University; Chung-Li Taiwan
| | - Chin-Ping Huang
- Nanotechnology Research Center; Nano-instrumentation and Application Division; Industrial Technology Research Institute; Hsinchu Taiwan
| | - Hsi-Ya Huang
- Center for Nanotechnology; Department of Chemistry; Chung Yuan Christian University; Chung-Li Taiwan
| | - Ting-Yu Chin
- Department of Bioscience Technology; Chung Yuan Christian University; Chung-Li Taiwan
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33
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A sensitive and reliable dopamine biosensor was developed based on the Au@carbon dots–chitosan composite film. Biosens Bioelectron 2014; 52:277-80. [DOI: 10.1016/j.bios.2013.09.003] [Citation(s) in RCA: 169] [Impact Index Per Article: 16.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Accepted: 09/02/2013] [Indexed: 11/19/2022]
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34
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Huang Q, Hu S, Zhang H, Chen J, He Y, Li F, Weng W, Ni J, Bao X, Lin Y. Carbon dots and chitosan composite film based biosensor for the sensitive and selective determination of dopamine. Analyst 2013; 138:5417-23. [PMID: 23833763 DOI: 10.1039/c3an00510k] [Citation(s) in RCA: 122] [Impact Index Per Article: 11.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
A simple, sensitive and reliable dopamine (DA) biosensor was developed based on a carbon dots (CDs) and chitosan (CS) composite film modified glassy carbon electrode (CDs-CS/GCE). Under optimal conditions, the CDs-CS/GCE showed a better electrochemical response for the detection of DA than that of the glassy carbon electrode (GCE). The oxidation peak current (Ipa) of DA was linear with the concentration of DA in the range from 0.1 μM to 30.0 μM with the limit of detection as 11.2 nM (3S/N). The CDs-CS/GCE was applied to the detection of DA content in an injection solution of DA with satisfactory results.
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Affiliation(s)
- Qitong Huang
- Department of Chemistry and Environment Science, Zhangzhou Normal University, Zhangzhou 363000, PR China
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Tsioupi DA, Stefan-Vanstaden RI, Kapnissi-Christodoulou CP. Chiral selectors in CE: recent developments and applications. Electrophoresis 2013; 34:178-204. [PMID: 23161372 DOI: 10.1002/elps.201200239] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2012] [Revised: 08/14/2012] [Accepted: 08/14/2012] [Indexed: 01/01/2023]
Abstract
This review article provides an overview of the recent advances in enantioanalysis by use of electrophoretic techniques. Due to the big number of publications in the subject mentioned above, this article is focused on chiral method developments and applications published from 2008 until 2011, and it demonstrates chiral selectors used in CE. Numerous chiral selectors have been used over the years, and these include the cyclic and the linear oligo- and polysaccharides, the branched polysaccharides, the polymeric and monomeric surfactants, the macrocyclic and other antibiotics, and the crown ethers. Different dual-selector systems are also presented in this article, and the results are compared with those obtained by use of a single chiral selector. Finally, several pharmaceutical and biomedical applications based on chiral recognition are summarized.
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Chemo- and enantio-selective method for the analysis of amino acids by capillary electrophoresis with in-capillary derivatization. J Chromatogr A 2012; 1267:121-6. [PMID: 22727557 DOI: 10.1016/j.chroma.2012.05.098] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2012] [Revised: 05/28/2012] [Accepted: 05/29/2012] [Indexed: 11/20/2022]
Abstract
A novel dual chiral CE method was developed for the separation of l- and d-amino acids (AAs), using in-capillary derivatization with 9-fluoroenylmethyl chloroformate (FMOC). Firstly, using pre-column derivatization, the enantioseparation of FMOC-AAs was optimized according to the nature of cyclodextrins (CD). A background electrolyte (BGE) composed of 30 mM β-CD, 30 mM octakis(2,3-dihydroxy-6-O-sulfo)-γ-CD (OS-γ-CD), 40 mM tetraborate and 15% isopropanol (IPA) was selected and led to 17 baseline resolved pairs (R(s)=1.7-5.8) and two partially resolved pairs (Lys, R(s)=0.5 and Arg, R(s)=1.2). Experimental conditions for in-capillary derivatization were then optimized. Several parameters, such as mixing voltage and time, concentration of labeling solution and the length of the spacer plug were studied. The optimal conditions for in-capillary derivatization procedure were obtained using successive hydrodynamic injections (30 mbar) of AAs for 2s, borate buffer for 4s and 10mM FMOC solution for 6s, followed by a mixing at 3 kV for 72 s and wait time of 1 min. Moreover, a particular attention was paid to improve separation chemoselectivity. The effect on stereoselectivity and chemoselectivity of different factors, such as decrease of pH and tetraborate concentration and the addition of sodium dodecyl sulfate (SDS), was investigated using the in-capillary derivatization procedure. The best separation of a standard mixture of ten AA racemates was observed using a BGE containing 30 mM β-CD, 30 mM OS-γ-CD, 25 mM SDS, 40 mM sodium tetraborate and 17% IPA.
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Poinsot V, Carpéné MA, Bouajila J, Gavard P, Feurer B, Couderc F. Recent advances in amino acid analysis by capillary electrophoresis. Electrophoresis 2012; 33:14-35. [PMID: 22213525 DOI: 10.1002/elps.201100360] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
This paper describes the most important articles that have been published on amino acid analysis using CE during the period from June 2009 to May 2011 and follows the format of the previous articles of Smith (Electrophoresis 1999, 20, 3078-3083), Prata et al. (Electrophoresis 2001, 22, 4129-4138) and Poinsot et al. (Electrophoresis 2003, 24, 4047-4062; Electrophoresis 2006, 27, 176-194; Electrophoresis 2008, 29, 207-223; Electrophoresis 2010, 31, 105-121). We present new developments in amino acid analysis with CE, which are reported describing the use of lasers or light emitting diodes for fluorescence detection, conductimetry electrochemiluminescence detectors, mass spectrometry applications, and lab-on-a-chip applications using CE. In addition, we describe articles concerning clinical studies and neurochemical applications of these techniques.
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Affiliation(s)
- Véréna Poinsot
- Université Paul Sabatier, IMRCP, UMR 5623, Toulouse, France
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Sánchez-Hernández L, Castro-Puyana M, Marina ML, Crego AL. Recent approaches in sensitive enantioseparations by CE. Electrophoresis 2011; 33:228-42. [PMID: 22144098 DOI: 10.1002/elps.201100404] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2011] [Revised: 09/16/2011] [Accepted: 09/17/2011] [Indexed: 12/27/2022]
Abstract
The latest strategies and instrumental improvements for enhancing the detection sensitivity in chiral analysis by CE are reviewed in this work. Following the previous reviews by García-Ruiz et al. (Electrophoresis 2006, 27, 195-212) and Sánchez-Hernández et al. (Electrophoresis 2008, 29, 237-251; Electrophoresis 2010, 31, 28-43), this review includes those papers that were published during the period from June 2009 to May 2011. These works describe the use of offline and online sample treatment techniques, online sample preconcentration techniques based on electrophoretic principles, and alternative detection systems to UV-Vis to increase the detection sensitivity. The application of the above-mentioned strategies, either alone or combined, to improve the sensitivity in the enantiomeric analysis of a broad range of samples, such as pharmaceutical, biological, food and environmental samples, enables to decrease the limits of detection up to 10⁻¹² M. The use of microchips to achieve sensitive chiral separations is also discussed.
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Affiliation(s)
- Laura Sánchez-Hernández
- Department of Analytical Chemistry, Faculty of Chemistry, University of Alcalá. Ctra. Madrid-Barcelona, Alcalá de Henares, Madrid, Spain
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Viglio S, Fumagalli M, Ferrari F, Bardoni A, Salvini R, Giuliano S, Iadarola P. Recent novel MEKC applications to analyze free amino acids in different biomatrices: 2009-2010. Electrophoresis 2011; 33:36-47. [DOI: 10.1002/elps.201100336] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2011] [Revised: 07/28/2011] [Accepted: 08/02/2011] [Indexed: 11/07/2022]
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Simultaneous quantification of d- vs. l-serine, taurine, kynurenate, phosphoethanolamine and diverse amino acids in frontocortical dialysates of freely-moving rats: Differential modulation by N-methyl-d-aspartate (NMDA) and other pharmacological agents. J Neurosci Methods 2011; 202:143-57. [DOI: 10.1016/j.jneumeth.2011.08.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2011] [Revised: 08/08/2011] [Accepted: 08/25/2011] [Indexed: 01/18/2023]
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Recent progress in capillary electrophoretic analysis of amino acid enantiomers. J Chromatogr B Analyt Technol Biomed Life Sci 2011; 879:3078-95. [DOI: 10.1016/j.jchromb.2011.03.016] [Citation(s) in RCA: 95] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2011] [Revised: 03/02/2011] [Accepted: 03/06/2011] [Indexed: 11/20/2022]
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42
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Effect of pre-ischaemic conditioning on hypoxic depolarization of dopamine efflux in the rat caudate brain slice measured in real-time with fast cyclic voltammetry. Neurochem Int 2011; 59:714-21. [PMID: 21762742 DOI: 10.1016/j.neuint.2011.06.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2011] [Revised: 06/23/2011] [Accepted: 06/27/2011] [Indexed: 11/20/2022]
Abstract
Fast cyclic voltammetry can be used to measure dopamine release after oxygen and glucose deprivation (OGD) induced anoxic depolarization in vitro. Here we measure dopamine efflux with 1s time resolution, which is appropriate to measure OGD-evoked dopamine efflux accurately. In the present study, we examined whether OGD-evoked dopamine efflux could be used to show pre-ischaemic conditioning in the rat caudate brain slice. Caudate slices were exposed to 0, 2, or 10 min OGD pre-ischaemic conditioning, then 60 min later exposed to a second OGD event of 15 min duration. We measured the OGD-evoked dopamine efflux using fast cyclic voltammetry and in some experiments caudate dopamine and DOPAC tissue levels were measured using HPLC and 20 μm cryostat sections were Nissl stained to indicate neuronal loss. We found that 10 but not 2 min OGD pre-ischaemic conditioning resulted in a longer time to onset of OGD-evoked dopamine efflux on the main OGD event (475 ± 31 and 287 ± 30 s for 10 Vs 0 min pre-ischaemic conditioning respectively). Further, 10 min OGD pre-ischaemic conditioning resulted in less dopamine efflux on the second OGD event (4.23 ± 1.12 and 8.14 ± 0.82 μM for 10 Vs 0 min pre-ischaemic conditioning respectively), despite these slices having similar tissue dopamine content and DOPAC/DA ratio, and the rate of dopamine release was slower in the main OGD event (21 ± 5 and 74 ± 8 nM/s for 10 Vs 0 min pre-ischaemic conditioning respectively). These data suggest that 10 min OGD pre-ischaemic conditioning can evoke tolerance to a second OGD event and that voltammetric recording of OGD-evoked dopamine efflux is a useful model of pre-ischaemic conditioning in neuronal tissue.
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Farzin L, Hosseini MRM. Simultaneous Determination of Dopamine and L-Ascorbic Acid by Modified Carbon Paste Electrode with Ni (II) Cyclam Complex. ACTA ACUST UNITED AC 2011. [DOI: 10.4236/ajac.2011.22036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Chronic amphetamine treatment enhances corticotropin-releasing factor-induced serotonin release in the amygdala. Eur J Pharmacol 2010; 644:80-7. [PMID: 20655906 DOI: 10.1016/j.ejphar.2010.07.008] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2010] [Revised: 07/02/2010] [Accepted: 07/11/2010] [Indexed: 11/23/2022]
Abstract
Amphetamine use is associated with dysphoric states, including heightened anxiety, that emerge within 24h of withdrawal from the drug. Corticotropin-releasing factor increases serotonin release in the central nucleus of the amygdala, and this neurochemical circuitry may play a role in mediating fear and anxiety states. We have previously shown that chronic amphetamine treatment increases corticotropin-releasing factor receptor type-2 levels in the serotonergic dorsal raphe nucleus of the rat. Therefore, we hypothesized that chronic amphetamine treatment would enhance the amygdalar serotonergic response to corticotropin-releasing factor infused into the dorsal raphe nucleus. Male rats were injected once-daily with d-amphetamine (2.5mg/kg i.p., or saline) for two weeks. Serotonin release within the central nucleus of the amygdala in response to intra-raphe infusion of corticotropin-releasing factor (100 ng) was measured 24h after the last treatment in urethane-anesthetized (1.8 mg/kg, i.p.) rats using in vivo microdialysis. Rats pretreated with amphetamine showed significantly enhanced serotonin release in the central nucleus of the amygdala in response to corticotropin-releasing factor infusion when compared to saline pretreated rats. Furthermore, this enhanced response was blocked by the corticotropin-releasing factor type-2 receptor antagonist antisauvagine-30 (2 microg) infused into the dorsal raphe nucleus. These results suggest increased sensitivity to corticotropin-releasing factor as mediated by type-2 receptors following chronic amphetamine treatment, which may underlie dysphoric states observed during amphetamine withdrawal.
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