1
|
Fei Y, Sun K, Liu L. Carbon-dots-referenced metal-organic frameworks for chemical sensing of tumor/mood biomarker 5-hydroxyindoleacetic acid in human urine: Covalent grafting blue-emitting carbon dots onto red-emitting MOF. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2023; 290:122244. [PMID: 36566532 DOI: 10.1016/j.saa.2022.122244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/05/2022] [Accepted: 12/12/2022] [Indexed: 06/17/2023]
Abstract
5-HIAA (5-hydroxyindoleacetic acid) is a metabolite for 5-hydroxytryptamine which is excreted in urine and reflects human homeostatic sate. Thus, its monitoring is of great important for clinical diagnosis. In this work, blue-emitting carbon dots (BCD) were firstly synthesize and then covalently grafted onto red-emitting MOF (EuBTC), resulting in a composite sensing platform (BCD@EuBTC) with two emission bands (blue emission peaking at 441 nm and red emission peaking at 616 nm). This composite structure was characterized by means of XRD, IR, TGA, N2 adsorption/desorption, and SEM/TEM. It was found that BCD was grafted on EuBTC surface, not loaded in its micropores, with doping level of 5.02 wt%. 5-HIAA replaced and released the BCD in BCD@EuBTC. The released BCD showed strong blue emission. In the meanwhile, EuBTC red emission was quenched by 5-HIAA thermal relaxation. As a consequence, a ratiometric sensing signal was observed for 5-HIAA. A linear working calibration curve was fitted as F/F0 = 0.588 + 1.598*[5-HIAA], R2 = 0.999, with detection of limit (LOD) determined as 0.3 μM, working region of 0.3-70 μM, and good selectivity. The practical sensing performance of BCD@EuBTC for 5-HIAA in human urine was confirmed, with recovery of 103%.
Collapse
Affiliation(s)
- YuLang Fei
- Medical College, Xijing University, Xi 'an 710123, Shaanxi Province, China; The First Affiliated Hospital of Nanyang Medical College, Nanyang 473061, Henan Province, China
| | - Kai Sun
- The First Affiliated Hospital of Nanyang Medical College, Nanyang 473061, Henan Province, China.
| | - Liang Liu
- School of Materials Science & Engineering, Jiangsu University, Zhenjiang 212013, China
| |
Collapse
|
2
|
Presti-Silva SM, Herlinger AL, Martins-Silva C, Pires RGW. Biochemical and behavioral effects of rosmarinic acid treatment in an animal model of Parkinson's disease induced by MPTP. Behav Brain Res 2023; 440:114257. [PMID: 36526017 DOI: 10.1016/j.bbr.2022.114257] [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: 09/12/2022] [Revised: 12/02/2022] [Accepted: 12/11/2022] [Indexed: 12/15/2022]
Abstract
Parkinson's disease (PD) is the second most common neurodegenerative disease worldwide. The main therapeutic approach available nowadays relieves motor symptoms but does not prevent or stop neurodegeneration. Rosmarinic acid (RA), an ester of caffeic and 3,4-dihydroxyphenylacetic acids, is obtained from numerous plant species such as Salvia officinalis L. (sage) and Rosmarinus officinalis (rosemary). This compound has a wide spectrum of biological activities, such as antioxidant and anti-inflammatory, and could be an additional therapy for neurodegenerative disorders. Here we evaluated the potential neuroprotective effects of RA treatment in a murine model of PD induced by 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP). Mice were separated into four groups: CN, Control/saline; RA, Rosmarinic acid/vehicle; MPTP, MPTP/saline; MPTP+RA, MPTP/RA. RA (20 mg/kg, or vehicle) was administered orally by intra-gastric gavage for 14 days, one hour before MPTP or saline injection. MPTP groups received the drug (30 mg/kg, intraperitoneally) once a day for five days (fourth to the eighth day of the experiment). MPTP-treated animals displayed hyperlocomotion behavior, which was significantly prevented by RA treatment. In addition, RA treatment increased dopaminergic signaling in the parkinsonian mice and improved the monoaminergic system in healthy animals. Analysis of alterations in the striatal mRNA expression of dopaminergic system components showed that MAO-A expression was increased in the MPTP+AR group. Overall, this study brings new evidence of the potential neuroprotective properties of RA not only in preventing behavioral features observed in PD, but also by improving neurotransmission in the healthy brain.
Collapse
Affiliation(s)
- Sarah Martins Presti-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Graduate Program in Biochemistry, Health Sciences Center, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Alice Laschuk Herlinger
- Cancer and Neurobiology Laboratory, Experimental Research Center, Clinical Hospital, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil
| | - Cristina Martins-Silva
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Graduate Program in Biochemistry, Health Sciences Center, Federal University of Espírito Santo, Vitória, ES, Brazil
| | - Rita Gomes Wanderley Pires
- Department of Physiological Sciences, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Laboratory of Molecular and Behavioral Neurobiology, Health Sciences Center, Federal University of Espirito Santo, Vitoria, ES, Brazil; Graduate Program in Biochemistry, Health Sciences Center, Federal University of Espírito Santo, Vitória, ES, Brazil.
| |
Collapse
|
3
|
Rodrigues Tavares LR, Pelarin V, Baptista-de-Souza D, Pereira Ferrari D, Nunes-de-Souza RL, Canto-de-Souza A. 5-HT 3 receptor within the amygdaloid complex modulates pain hypersensitivity induced by empathy model of cohabitation with a partner in chronic pain condition in mice. Soc Neurosci 2021; 16:534-548. [PMID: 34253155 DOI: 10.1080/17470919.2021.1954083] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Cohabitation with a partner undergoing chronic pain induces pain hypersensitivity. Among a lot of other neurochemical pathways, the serotonin (5-HT) role, specifically the 5-HT3 receptor (5-HT3R), in the amygdala has never been evaluated in this model. Here we studied the effects of the amygdala's chemical inhibition, its neuronal activation pattern, and 5-HT, 5-HIAA, and 5-HT turnover within the amygdala. Furthermore, the systemic and intra-amygdala 5-HT3R activation and blockade in mice that cohabited with a conspecific subjected to chronic constriction injury were investigated. Male Swiss mice were housed in partners for 28 days. The dyads were divided into two groups on the 14th day: cagemate nerve constriction (CNC) and cagemate sham (CS). On the 24th day, cagemates underwent a stereotaxic surgery (when necessary) and, on the 28th day, they were evaluated on the writhing test. The amygdala inactivation promotes pain-hypersensitivity behaviors in groups and dyads; cohabitation with a partner with chronic pain did not change FosB-labeled cells in the amygdala's nucleus and increases 5-HT turnover in cagemates. Systemic and intra-amygdala 5-HT3R activation attenuated and enhanced the number of writhes, respectively. In contrast, 5-HT3R blockade reduced hypersensitivity pain response. Results suggest the involvement of amygdala serotonergic signaling via 5-HT3R in empathy-like behavior.
Collapse
Affiliation(s)
- Lígia Renata Rodrigues Tavares
- Psychobiology Group, Department of Psychology/CECH, Universidade Federal de São Carlos - UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences UFSCar/UNESP, São Carlos, Brazil
| | - Vinícius Pelarin
- Psychobiology Group, Department of Psychology/CECH, Universidade Federal de São Carlos - UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences UFSCar/UNESP, São Carlos, Brazil
| | - Daniela Baptista-de-Souza
- Psychobiology Group, Department of Psychology/CECH, Universidade Federal de São Carlos - UFSCar, São Carlos, Brazil.,Lab. Pharmacology, School of Pharmaceutical Sciences, Univ. Estadual Paulista - UNESP, Araraquara, Brazil.,Neuroscience and Behavior Institute - IneC, Ribeirão Preto, Brazil
| | - Daniele Pereira Ferrari
- Psychobiology Group, Department of Psychology/CECH, Universidade Federal de São Carlos - UFSCar, São Carlos, Brazil
| | - Ricardo Luiz Nunes-de-Souza
- Joint Graduate Program in Physiological Sciences UFSCar/UNESP, São Carlos, Brazil.,Lab. Pharmacology, School of Pharmaceutical Sciences, Univ. Estadual Paulista - UNESP, Araraquara, Brazil.,Neuroscience and Behavior Institute - IneC, Ribeirão Preto, Brazil
| | - Azair Canto-de-Souza
- Psychobiology Group, Department of Psychology/CECH, Universidade Federal de São Carlos - UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences UFSCar/UNESP, São Carlos, Brazil.,Neuroscience and Behavior Institute - IneC, Ribeirão Preto, Brazil.,Program in Psychology UFSCar, São Carlos, Brazil
| |
Collapse
|
4
|
Fathy SM, El-Dash HA, Said NI. Neuroprotective effects of pomegranate (Punica granatum L.) juice and seed extract in paraquat-induced mouse model of Parkinson's disease. BMC Complement Med Ther 2021; 21:130. [PMID: 33902532 PMCID: PMC8074500 DOI: 10.1186/s12906-021-03298-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2020] [Accepted: 04/06/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Paraquat, (PQ), an herbicide that can induce Parkinsonian-like symptoms in rodents and humans. The consumption of phytochemical-rich plants can reduce the risk of chronic illnesses such as inflammation and neurodegenerative diseases. The present study aimed to investigate the protective effects of pomegranate seed extract (PSE) and juice (PJ) against PQ-induced neurotoxicity in mice. METHODS Mice were assigned into 4 groups; three groups received PQ (10 mg/kg, i.p.) twice a week for 3 weeks. Two of the PQ-induced groups pretreated with either PSE or PJ. Detection of phytochemicals, total phenolics, and total flavonoids in PSE and PJ was performed. Tyrosine hydroxylase (TH) level was measured in the substantia nigra (SN) by Western blotting technique. Striatal dopamine (DA) and 3,4-dihydroxyphenylacetic acid (DOPAC) were detected using high-performance liquid chromatography (HPLC). The levels of adenosine triphosphate (ATP), malondialdehyde (MDA), and the activity of the antioxidant enzymes were estimated in the striatum by colorimetric analysis. Striatal pro-inflammatory and anti-inflammatory markers using enzyme-linked immunosorbent assay (ELISA) as well as DNA fragmentation degree by qualitative DNA fragmentation assay, were evaluated. Real-time polymerase chain reaction (qPCR) assay was performed for the detection of nuclear factor kappa B (NF-кB) gene expression. Moreover, Western blotting analysis was used for the estimation of the cluster of differentiation 11b (CD11b), transforming growth factor β (TGF-β), and glial cell-derived neurotrophic factor (GDNF) levels in the striatum. RESULTS Pretreatment with PSE or PJ increased the levels of TH in the SN as well as DA and its metabolite in the striatum that were reduced by PQ injection. PSE and PJ preadministration improved the PQ-induced oxidative stress via a significant reduction of the MDA level and the augmentation of antioxidant enzyme activities. PSE and PJ also significantly downregulated the striatal NF-кB gene expression, reduced the PQ-enhanced apoptosis, decreased the levels of; pro-inflammatory cytokines, CD11b, and TGF-β coupled with a significant increase of; interleukin-10 (IL-10), GDNF, and ATP levels as compared with PQ-treated mice. CONCLUSIONS The current study indicated that PSE and PJ consumption may exhibit protective effects against PQ-induced neurotoxicity in mice.
Collapse
Affiliation(s)
- Samah M Fathy
- Zoology Department, Faculty of Science, Fayoum University, Fayoum, Egypt.
| | - Heba A El-Dash
- Zoology Department, Faculty of Science, Fayoum University, Fayoum, Egypt
| | - Noha I Said
- Zoology Department, Faculty of Science, Fayoum University, Fayoum, Egypt
| |
Collapse
|
5
|
Baptista-de-Souza D, Tavares LRR, Furuya-da-Cunha EM, Carneiro de Oliveira PE, Canto-de-Souza L, Nunes-de-Souza RL, Canto-de-Souza A. Chronic Fluoxetine Impairs the Effects of 5-HT 1A and 5-HT 2C Receptors Activation in the PAG and Amygdala on Antinociception Induced by Aversive Situation in Mice. Front Pharmacol 2020; 11:260. [PMID: 32218734 PMCID: PMC7078365 DOI: 10.3389/fphar.2020.00260] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2019] [Accepted: 02/24/2020] [Indexed: 11/24/2022] Open
Abstract
Growing evidence suggests an important role of fluoxetine with serotonin 5-HT1A and 5-HT2C receptors in the modulation of emotion and nociception in brain areas such as the amygdala and periaqueductal gray (PAG). Acute fluoxetine impairs 5-HT2C (but not 5-HT1A) receptor activation in the amygdaloid complex. Given that fluoxetine produces its clinical therapeutic effects only when given chronically, this study investigated the effects of chronic treatment with fluoxetine on the effects produced by 5-HT1A or 5-HT2C receptors activation in the amygdala or PAG on fear-induced antinociception. We recorded the effects of chronic fluoxetine on serotonin and its metabolite 5-hydroxyindoleacetic acid (5-HIAA) levels as well as serotonin turnover; 5-HT1A and 5-HT2C receptor protein levels in the amygdala and PAG. Also, we evaluated the effects of chronic fluoxetine combined with intra-amygdala or intra-PAG injection of MK-212 (a 5-HT2C agonist; 0.63 nmol) or 8-OH-DPAT (a 5-HT1A agonist; 10 nmol) on the antinociceptive response in mice confined in the open arm of the elevated plus-maze (EPM). Nociception was assessed with the writhing test induced by intraperitoneal injection of 0.6% acetic acid. Results showed that fluoxetine (20 mg/kg, s.c.) enhanced the open-arm induced antinociception (OAA) and reduced the number of writhes in mice confined in the enclosed arm, featuring an analgesic effect. In addition, fluoxetine increased the expression of 5-HT2C receptors and 5-HT levels whereas reduced its turnover in the amygdala. While fluoxetine did not change 5-HT and 5-HIAA levels, and its turnover in the PAG, it up-regulated 5HT1A and 5-HT2C receptors in this midbrain area. Chronic fluoxetine (5.0 mg/Kg, an intrinsically inactive dose on nociception) antagonized the enhancement of OAA produced by intra-amygdala or intra-PAG injection of MK-212. Fluoxetine also impaired the attenuation of OAA induced by intra-amygdala injection of 8-OH-DPAT and totally prevented OAA in mice that received intra-PAG 8-OH-DPAT. These results suggest that (i) 5-HT may facilitate nociception and intensify OAA, acting at amygdala 5-HT1A and 5-HT2C receptors, respectively, and (ii) fluoxetine modulates the OAA through activation of 5-HT2C receptors within the PAG. These findings indicate that chronic fluoxetine impairs the effects of 5-HT1A and 5-HT2C receptors activation in the amygdala and PAG on fear-induced antinociception in mice.
Collapse
Affiliation(s)
- Daniela Baptista-de-Souza
- Department of Psychology, Federal University of São Carlos-UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences, UFSCar/UNESP, São Carlos, Brazil.,Institute of Neuroscience and Behavior, Ribeirão Preto, Brazil
| | - Lígia Renata Rodrigues Tavares
- Department of Psychology, Federal University of São Carlos-UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences, UFSCar/UNESP, São Carlos, Brazil
| | - Elke Mayumi Furuya-da-Cunha
- Department of Psychology, Federal University of São Carlos-UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences, UFSCar/UNESP, São Carlos, Brazil
| | - Paulo Eduardo Carneiro de Oliveira
- Department of Psychology, Federal University of São Carlos-UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences, UFSCar/UNESP, São Carlos, Brazil
| | - Lucas Canto-de-Souza
- Institute of Neuroscience and Behavior, Ribeirão Preto, Brazil.,Laboratory of Pharmacology, School of Pharmaceutical Sciences, Univ. Estadual Paulista - UNESP, Araraquara, Brazil
| | - Ricardo Luiz Nunes-de-Souza
- Joint Graduate Program in Physiological Sciences, UFSCar/UNESP, São Carlos, Brazil.,Institute of Neuroscience and Behavior, Ribeirão Preto, Brazil.,Laboratory of Pharmacology, School of Pharmaceutical Sciences, Univ. Estadual Paulista - UNESP, Araraquara, Brazil
| | - Azair Canto-de-Souza
- Department of Psychology, Federal University of São Carlos-UFSCar, São Carlos, Brazil.,Joint Graduate Program in Physiological Sciences, UFSCar/UNESP, São Carlos, Brazil.,Institute of Neuroscience and Behavior, Ribeirão Preto, Brazil.,Graduate Program in Psychology UFSCar, São Carlos, Brazil
| |
Collapse
|
6
|
Jung-Klawitter S, Kuseyri Hübschmann O. Analysis of Catecholamines and Pterins in Inborn Errors of Monoamine Neurotransmitter Metabolism-From Past to Future. Cells 2019; 8:cells8080867. [PMID: 31405045 PMCID: PMC6721669 DOI: 10.3390/cells8080867] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 08/02/2019] [Accepted: 08/04/2019] [Indexed: 12/13/2022] Open
Abstract
Inborn errors of monoamine neurotransmitter biosynthesis and degradation belong to the rare inborn errors of metabolism. They are caused by monogenic variants in the genes encoding the proteins involved in (1) neurotransmitter biosynthesis (like tyrosine hydroxylase (TH) and aromatic amino acid decarboxylase (AADC)), (2) in tetrahydrobiopterin (BH4) cofactor biosynthesis (GTP cyclohydrolase 1 (GTPCH), 6-pyruvoyl-tetrahydropterin synthase (PTPS), sepiapterin reductase (SPR)) and recycling (pterin-4a-carbinolamine dehydratase (PCD), dihydropteridine reductase (DHPR)), or (3) in co-chaperones (DNAJC12). Clinically, they present early during childhood with a lack of monoamine neurotransmitters, especially dopamine and its products norepinephrine and epinephrine. Classical symptoms include autonomous dysregulations, hypotonia, movement disorders, and developmental delay. Therapy is predominantly based on supplementation of missing cofactors or neurotransmitter precursors. However, diagnosis is difficult and is predominantly based on quantitative detection of neurotransmitters, cofactors, and precursors in cerebrospinal fluid (CSF), urine, and blood. This review aims at summarizing the diverse analytical tools routinely used for diagnosis to determine quantitatively the amounts of neurotransmitters and cofactors in the different types of samples used to identify patients suffering from these rare diseases.
Collapse
Affiliation(s)
- Sabine Jung-Klawitter
- Department of General Pediatrics, Division of Neuropediatrics and Metabolic Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany.
| | - Oya Kuseyri Hübschmann
- Department of General Pediatrics, Division of Neuropediatrics and Metabolic Medicine, University Hospital Heidelberg, 69120 Heidelberg, Germany
| |
Collapse
|
7
|
Fajardo A, Tapia D, Pizarro J, Segura R, Jara P. Determination of norepinephrine using a glassy carbon electrode modified with graphene quantum dots and gold nanoparticles by square wave stripping voltammetry. J APPL ELECTROCHEM 2019. [DOI: 10.1007/s10800-019-01288-0] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
8
|
Hlavacova N, Li Y, Pehrson A, Sanchez C, Bermudez I, Csanova A, Jezova D, Franklin M. Effects of vortioxetine on biomarkers associated with glutamatergic activity in an SSRI insensitive model of depression in female rats. Prog Neuropsychopharmacol Biol Psychiatry 2018; 82:332-338. [PMID: 29269186 DOI: 10.1016/j.pnpbp.2017.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 07/09/2017] [Accepted: 07/09/2017] [Indexed: 11/27/2022]
Abstract
The aim of this study was to investigate the antidepressant activity of vortioxetine in a tryptophan (TRP) depletion female rat model of depression and compare it to that of paroxetine using doses that fully occupy the serotonin transporter (SERT). We evaluated the effects of vortioxetine on potential biomarkers associated with TRP depletion including serum aldosterone, corticosterone and IL-6 levels together with indirect indicators of glutamate neurotransmission. Female Sprague-Dawley rats were randomized to control, low TRP, low TRP/paroxetine or low TRP/vortioxetine groups. Vortioxetine and paroxetine were administered via diet (10mg/kg/day) and drinking water (10mg/kg/day) respectively for 14days. Vortioxetine but not paroxetine reversed TRP depletion-induced depressive-like behavior. Vortioxetine reduced TRP depletion-induced increases of serum corticosterone, aldosterone, IL-6 and N-methyl-d-aspartate and α7-nicotinic acetylcholine receptor expression in the amygdala and hippocampus, respectively. Paroxetine demonstrated little effect except a reduction of aldosterone. Vortioxetine but not paroxetine reversed TRP depletion-induced reductions of serum and brain kynurenic acid. In conclusion, vortioxetine, but not paroxetine, enabled reversals of TRP depletion-induced changes of depression-like behavior and markers of glutamatergic activity. These observations support the hypothesis that vortioxetine's antidepressant activity may involve mechanisms beyond SERT inhibition.
Collapse
Affiliation(s)
- N Hlavacova
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - Y Li
- Department of Neuroscience, Lundbeck Research USA, Inc., Paramus, NJ, USA
| | - A Pehrson
- External Sourcing and Scientific Excellence, Lundbeck Research USA, Inc., Paramus, NJ, USA
| | - C Sanchez
- Department of Neuroscience, Lundbeck Research USA, Inc., Paramus, NJ, USA
| | - I Bermudez
- School of Life Sciences, Oxford Brookes University, Oxford, UK
| | - A Csanova
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - D Jezova
- Institute of Experimental Endocrinology, Biomedical Research Center, Slovak Academy of Sciences, Bratislava, Slovakia
| | - M Franklin
- School of Life Sciences, Oxford Brookes University, Oxford, UK.
| |
Collapse
|
9
|
Reprint of: Contrasting effects of vortioxetine and paroxetine on pineal gland biochemistry in a tryptophan-depletion model of depression in female rats. Prog Neuropsychopharmacol Biol Psychiatry 2018; 82:339-342. [PMID: 29277417 DOI: 10.1016/j.pnpbp.2017.12.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/07/2017] [Accepted: 08/07/2017] [Indexed: 12/19/2022]
Abstract
We studied the effects of the multi-modal antidepressant, vortioxetine and the SSRI, paroxetine on pineal melatonin and monoamine synthesis in a sub-chronic tryptophan (TRP) depletion model of depression based on a low TRP diet. Female Sprague-Dawley rats were randomised to groups a) control, b) low TRP diet, c) low TRP diet+paroxetine and d) low TRP diet+vortioxetine. Vortioxetine was administered via the diet (0.76mg/kg of food weight) and paroxetine via drinking water (10mg/kg/day) for 14days. Both drugs resulted in SERT occupancies >90%. Vortioxetine significantly reversed TRP depletion-induced reductions of pineal melatonin and serotonin (5-HT) and significantly increased pineal noradrenaline NA. Paroxetine did none of these things. Other studies suggest pineal melatonin synthesis may involve N-methyl-d-aspartate (NMDA) receptors and glutamatergic modulation. Here observed changes may be mediated via vortioxetine's strong 5-HT reuptake blocking action together with possible additional effects on glutamate neurotransmission in the pineal via NMDA receptor-modulation and possibly with added impetus from increased NA output.
Collapse
|
10
|
Franklin M, Hlavacova N, Li Y, Bermudez I, Csanova A, Sanchez C, Jezova D. Contrasting effects of vortioxetine and paroxetine on pineal gland biochemistry in a tryptophan-depletion model of depression in female rats. Prog Neuropsychopharmacol Biol Psychiatry 2017; 79:499-502. [PMID: 28802861 DOI: 10.1016/j.pnpbp.2017.08.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Revised: 08/07/2017] [Accepted: 08/07/2017] [Indexed: 11/29/2022]
Abstract
We studied the effects of the multi-modal antidepressant, vortioxetine and the SSRI, paroxetine on pineal melatonin and monoamine synthesis in a sub-chronic tryptophan (TRP) depletion model of depression based on a low TRP diet. Female Sprague-Dawley rats were randomised to groups a) control, b) low TRP diet, c) low TRP diet+paroxetine and d) low TRP diet+vortioxetine. Vortioxetine was administered via the diet (0.76mg/kg of food weight) and paroxetine via drinking water (10mg/kg/day) for 14days. Both drugs resulted in SERT occupancies >90%. Vortioxetine significantly reversed TRP depletion-induced reductions of pineal melatonin and serotonin (5-HT) and significantly increased pineal noradrenaline NA. Paroxetine did none of these things. Other studies suggest pineal melatonin synthesis may involve N-methyl-d-aspartate (NMDA) receptors and glutamatergic modulation. Here observed changes may be mediated via vortioxetine's strong 5-HT reuptake blocking action together with possible additional effects on glutamate neurotransmission in the pineal via NMDA receptor-modulation and possibly with added impetus from increased NA output.
Collapse
Affiliation(s)
- M Franklin
- Department of Biology and Biomedical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK.
| | - N Hlavacova
- Institute of Experimental Endocrinology, Biomedical Research Centre of the Slovak, Academy of Sciences, Bratislava, Slovakia
| | - Y Li
- Lundbeck Research USA, Department of Biological Research, Paramus, NJ, USA
| | - I Bermudez
- Department of Biology and Biomedical Sciences, Faculty of Health and Life Sciences, Oxford Brookes University, Oxford, UK
| | - A Csanova
- Institute of Experimental Endocrinology, Biomedical Research Centre of the Slovak, Academy of Sciences, Bratislava, Slovakia
| | - C Sanchez
- Lundbeck Research USA, Department of Biological Research, Paramus, NJ, USA
| | - D Jezova
- Institute of Experimental Endocrinology, Biomedical Research Centre of the Slovak, Academy of Sciences, Bratislava, Slovakia
| |
Collapse
|
11
|
Programming of Dopaminergic Neurons by Neonatal Sex Hormone Exposure: Effects on Dopamine Content and Tyrosine Hydroxylase Expression in Adult Male Rats. Neural Plast 2016; 2016:4569785. [PMID: 26904299 PMCID: PMC4745917 DOI: 10.1155/2016/4569785] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2015] [Accepted: 12/15/2015] [Indexed: 12/22/2022] Open
Abstract
We sought to determine the long-term changes produced by neonatal sex hormone administration on the functioning of midbrain dopaminergic neurons in adult male rats. Sprague-Dawley rats were injected subcutaneously at postnatal day 1 and were assigned to the following experimental groups: TP (testosterone propionate of 1.0 mg/50 μL); DHT (dihydrotestosterone of 1.0 mg/50 μL); EV (estradiol valerate of 0.1 mg/50 μL); and control (sesame oil of 50 μL). At postnatal day 60, neurochemical studies were performed to determine dopamine content in substantia nigra-ventral tegmental area and dopamine release in nucleus accumbens. Molecular (mRNA expression of tyrosine hydroxylase) and cellular (tyrosine hydroxylase immunoreactivity) studies were also performed. We found increased dopamine content in substantia nigra-ventral tegmental area of TP and EV rats, in addition to increased dopamine release in nucleus accumbens. However, neonatal exposure to DHT, a nonaromatizable androgen, did not affect midbrain dopaminergic neurons. Correspondingly, compared to control rats, levels of tyrosine hydroxylase mRNA and protein were significantly increased in TP and EV rats but not in DHT rats, as determined by qPCR and immunohistochemistry, respectively. Our results suggest an estrogenic mechanism involving increased tyrosine hydroxylase expression, either by direct estrogenic action or by aromatization of testosterone to estradiol in substantia nigra-ventral tegmental area.
Collapse
|
12
|
Franklin M, Hlavacova N, Babic S, Pokusa M, Bermudez I, Jezova D. Aldosterone Signals the Onset of Depressive Behaviour in a Female Rat Model of Depression along with SSRI Treatment Resistance. Neuroendocrinology 2015; 102:274-287. [PMID: 25968351 DOI: 10.1159/000431152] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/01/2015] [Accepted: 05/02/2015] [Indexed: 11/19/2022]
Abstract
Depression is a serious condition that occurs more frequently in women and is often associated with treatment resistance. The main hypotheses of this study are that (a) aldosterone is an early marker of depression onset and (b) a tryptophan (TRP) depletion model of depression previously validated in male rats is treatment resistant in females. To explore possible underlying mechanisms, we have focused on factors shown to be altered in patients with treatment-resistant depression. Female Sprague-Dawley rats were treated with a control or low-TRP-containing diet for various time periods up to 21 days. The results show that aldosterone secretion increased after 4 days of TRP depletion and prior to corticosterone. Optimal effects of TRP depletion occurred at 14 days. In addition to neurochemical and behavioural changes observed previously in males, TRP depletion in females was associated with a significant decline in serum magnesium concentrations, increased serum interleukin-6, enhanced gene expression of orexin A in the frontal cortex and induced a rise in N-methyl-D-aspartate (NMDA) receptor Bmax in the amygdala. Depression-like behaviour, NMDA receptor upregulation, enhancement of the kynurenine-to-kynurenic acid ratio and magnesium were resistant to paroxetine treatment (10 mg/kg/day in drinking water for 14 days). In conclusion, aldosterone may represent an important early marker for the onset of depression-like behaviour. With respect to treatment resistance, the underlying mechanisms may involve pro-inflammatory cytokines, the kynurenine pathway, magnesium, glutamate neurotransmission and the orexin pathway. This model of treatment-resistant depression may be useful for the future development of new compounds with novel antidepressant properties.
Collapse
|
13
|
Liquid chromatographic methods for the quantification of catecholamines and their metabolites in several biological samples—A review. Anal Chim Acta 2013; 768:12-34. [DOI: 10.1016/j.aca.2012.12.030] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 12/16/2012] [Accepted: 12/19/2012] [Indexed: 11/18/2022]
|
14
|
Sub-chronic dietary tryptophan depletion--an animal model of depression with improved face and good construct validity. J Psychiatr Res 2012; 46:239-47. [PMID: 22074993 DOI: 10.1016/j.jpsychires.2011.10.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/10/2011] [Revised: 10/11/2011] [Accepted: 10/12/2011] [Indexed: 12/15/2022]
Abstract
Sub-chronic tryptophan depletion (SCTD) is proposed as an animal model for depression. Aims were to test the hypothesis and optimise the time of SCTD-induced depression-related behaviour and associated biochemical changes. Sprague Dawley rats were treated with a low tryptophan (TRP) containing diet for 0, 7 or 14 days. Peripheral and central neurochemical markers were measured. SCTD-induced depression-related behaviour was assessed by the forced swim test (FST). Model sensitivity to antidepressants was tested by concomitant treatment with paroxetine. SCTD-induced significant reductions in weight gain and measures of peripheral and central TRP. Corticosterone, aldosterone and kynurenine (K), increased whilst kynurenic acid (KA), an NMDA antagonist decreased. 5-HT(2) receptor binding Bmax was enhanced but was reversed by paroxetine. Corticosterone and aldosterone were significantly negatively-correlated to weight gain. SCTD increased floating time and reduced swimming time in the FST but were reversed by paroxetine. Aldosterone was increased at 7 and 14 days, whereas other changes maximised at 14 days. Aldosterone may be an early marker or causal link for depression development. Increased corticosterone and brain tissue 5-HT-receptor density may be correlates of depressive behaviour. Consequential increases in NMDA signalling through increased K/KA ratios suggest the model may be useful for testing novel antidepressants.
Collapse
|
15
|
Sotomayor-Zárate R, Tiszavari M, Cruz G, Lara HE. Neonatal exposure to single doses of estradiol or testosterone programs ovarian follicular development–modified hypothalamic neurotransmitters and causes polycystic ovary during adulthood in the rat. Fertil Steril 2011; 96:1490-6. [DOI: 10.1016/j.fertnstert.2011.09.011] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2011] [Revised: 08/23/2011] [Accepted: 09/01/2011] [Indexed: 11/27/2022]
|
16
|
Kayir H, Yavuz O, Goktalay G, Yildirim M, Uzbay T. The relationship between baseline prepulse inhibition levels and ethanol withdrawal severity in rats. Prog Neuropsychopharmacol Biol Psychiatry 2010; 34:1507-14. [PMID: 20800642 DOI: 10.1016/j.pnpbp.2010.08.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/25/2010] [Revised: 08/17/2010] [Accepted: 08/17/2010] [Indexed: 10/19/2022]
Abstract
Baseline prepulse inhibition (PPI) of the acoustic startle reflex is thought to reflect the functioning of the sensorimotor gating system in the brain. The current literature indicates that similar neurotransmitter systems may play roles both in the regulation of PPI and in the development of ethanol withdrawal syndrome (EWS). The aim of the present study was to test if individual baseline PPI levels have any relationship to the behavioral and neurochemical consequences of EWS in rats. A batch of rats (n=30) was sorted according to baseline PPI levels and classified as either high-inhibitory (HI) or low-inhibitory (LI) rats (n=10 in each group). Ethanol was administered in a liquid diet for 21 days. On the 22nd day, ethanol was removed from the diet, and EWS was induced. At the 2nd, 4th, and 6th hours of EWS, locomotor activity and behavioral symptoms were evaluated. Brain tissue concentrations of dopamine, serotonin and noradrenaline in hippocampus, cortex, and striatum were measured after the 6th hour of EWS testing. Another batch of rats (n=30) was classified using the same procedure and fed with regular diet. On the 22nd day, rats were decapitated and neurochemical measurements were repeated. HI and LI rats consumed similar amounts of ethanol. However, EWS signs such as stereotyped behaviors, wet-dog shakes, and tremor were more intense in LI rats compared to their HI counterparts. Audiogenic seizures occurred in both groups in a similar manner. Although the catecholamine concentrations in the brains of both groups were parallel under baseline conditions, dopamine levels increased in the cortex of LI and in the striatum of HI rats, whereas striatum serotonin levels decreased only in LI rats after the 6th hour of EWS. In conclusion, the data suggest that the behavioral symptoms and neurochemical changes observed in EWS may be associated with baseline PPI levels.
Collapse
Affiliation(s)
- Hakan Kayir
- Department of Medical Pharmacology, Psychopharmacology Research Unit, Gulhane Military Medical Academy, Ankara, Turkey.
| | | | | | | | | |
Collapse
|
17
|
Biogenic amines and their metabolites in mouse brain tissue: development, optimization and validation of an analytical HPLC method. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:3003-14. [PMID: 20934393 DOI: 10.1016/j.jchromb.2010.09.019] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2010] [Revised: 08/28/2010] [Accepted: 09/18/2010] [Indexed: 11/22/2022]
Abstract
A simple and fast HPLC method based on an isocratic, reversed-phased ion-pair with amperometric end-point detection for simultaneous measurement of noradrenergic (MHPG/NA and A), dopaminergic (DOPAC, HVA/DA) and serotonergic (5-HIAA/5-HT) compounds in mouse brain tissue was developed. In order to improve the chromatographic resolution (Rs) with an acceptable total analysis time, experimental designs for multivariate optimization of the experimental conditions were applied. The optimal conditions for the separation of the eight neurotransmitters and metabolites, as well as two internal standards, i.e., DHBA and 5-HMT, were obtained using a mixture of methanol-phosphate-citric buffer (pH 3.2, 50 mM) (9:91, v/v) containing 2 mM OSA as mobile phase at 32°C on a microbore ALF-115 column (150 mm × 1.0 mm, 3 μm particle size) filled with porous C(18) silica stationary phase. In this study, a two-level fractional factorial experimental design (½ 2(K)) was employed to optimize the separation and capacity factor (k') of each molecule, leading to a good separation of all biogenic amines and their metabolites in brain tissue. A simple method for the preparation of different bio-analytical samples in phosphate-citric buffer was also developed. Results show that all molecules of interest were stabilized for at least 24 h in the matrix conditions without any antioxidants. The method was fully validated according to the requirements of SFSTP (Société Française des Sciences et Techniques Pharmaceutiques). The acceptance limits were set at ±15% of the nominal concentration. The method was found accurate over a concentration range of 4-2000 ng/ml for MHPG, 1-450 ng/ml for NA, 1-700 ng/ml for A, 1-300 ng/ml for DOPAC, 1-300 ng/ml for 5-HIAA, 1-700 ng/ml for DA, 4-2800 ng/ml for HVA and 1-350 ng/ml for 5-HT. The assay limits of detection for MHPG, NA, A, DOPAC, 5-HIAA, DA, HVA and 5-HT were 2.6, 2.8, 4.1, 0.7, 0.6, 0.8, 4.2 and 1.4 pg, respectively. It was found that the mean inter- and intra-assay relative standard deviations (RSDs) over the range of standard curve were less than 3%, the absolute and the relative recoveries were around 100%, demonstrating the high precision and accuracy, and reliability of the analytical method described to apply in routine analysis of biogenic amines and their metabolites in brain tissue.
Collapse
|
18
|
Wang S, Luo Z, Wang W, Chen X, Hu Z. Simultaneous Determination of Dopamine, Epinephrine and 5-Hydroxytryptamine in Toad Venom and Common Yam Rhizome by MEKC. Chromatographia 2009. [DOI: 10.1365/s10337-009-1333-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
19
|
Ji C, Li W, Ren XD, El-Kattan AF, Kozak R, Fountain S, Lepsy C. Diethylation labeling combined with UPLC/MS/MS for simultaneous determination of a panel of monoamine neurotransmitters in rat prefrontal cortex microdialysates. Anal Chem 2009; 80:9195-203. [PMID: 19551941 DOI: 10.1021/ac801339z] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The primary challenge associated with the development of an LC/MS/MS-based assay for simultaneous determination of biogenic monoamine neurotransmitters such as norepinephrine (NE), dopamine (DA), serotonin (5-HT), and normetanephrine (NM) in rat brain microdialysates is to improve detection sensitivity. In this work, a UPLC/ MS/MS-based method combined with a diethyl labeling technique was developed for simultaneous determination of a panel of monoamines in rat prefrontal cortex microdialysates. The chromatographic run time is 3.5 min/ sample. The limits of detection of the UPLC/MS/MS-based method for NE, DA, 5-HT/ and NM, with/without diethyl labeling of monoamines, are 0.005/0.4 (30/2367 pM), 0.005/0.1 (33/653 pM), 0.005/0.2 (28/1136 pM), and 0.002/0.2 ng/mL (11/1092 pM), respectively. Diethyl labeling of amino groups of monoamines affords 20-100 times increased detection sensitivity of corresponding native monoamines during the UPLC/MS/MS analysis. This could result from the following: (1) improved fragmentation patterns; (2) increased hydrophobicity and concomitantly increased ionization efficiency in ESI MS and MS/MS analysis; (3) reduced matrix interference. This labeling reaction employs a commercially available reagent, acetaldehyde-d4, to label the amine groups on the monoamines via reductive amination. It is also simple, fast (approximately 25-min reaction time), specific, and quantitative under mild reaction conditions. Data are also presented from the application of this assay to monitor the drug-induced changes of monoamine concentrations in rat prefrontal cortex microdialysate samples followed by administration of SKF 81297, a selective D1 dopamine receptor agonist known to elevate the extracellular level of the neurotransmitters DA and NE in the central nervous system.
Collapse
Affiliation(s)
- Chengjie Ji
- Pfizer Global Research & Development, Groton Laboratories, Pfizer Inc., Groton, Connecticut 06340, USA.
| | | | | | | | | | | | | |
Collapse
|
20
|
Chatterjee D, Gerlai R. High precision liquid chromatography analysis of dopaminergic and serotoninergic responses to acute alcohol exposure in zebrafish. Behav Brain Res 2009; 200:208-13. [DOI: 10.1016/j.bbr.2009.01.016] [Citation(s) in RCA: 114] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
21
|
Chau RMW, Patel BA. Determination of serotonin, melatonin and metabolites in gastrointestinal tissue using high-performance liquid chromatography with electrochemical detection. Biomed Chromatogr 2009; 23:175-81. [DOI: 10.1002/bmc.1100] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
22
|
CE coupled with amperometric detection using a boron-doped diamond microelectrode: Validation of a method for endogenous norepinephrine analysis in tissue. Electrophoresis 2008; 29:441-7. [DOI: 10.1002/elps.200700398] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
|
23
|
Novotny M, Quaiserova-Mocko V, Wehrwein EA, Kreulen DL, Swain GM. Determination of endogenous norepinephrine levels in different chambers of the rat heart by capillary electrophoresis coupled with amperometric detection. J Neurosci Methods 2007; 163:52-9. [PMID: 17383009 PMCID: PMC2679869 DOI: 10.1016/j.jneumeth.2007.02.008] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2006] [Revised: 02/12/2007] [Accepted: 02/12/2007] [Indexed: 12/27/2022]
Abstract
Capillary electrophoresis with end-column amperometric detection (CE-EC) was used to determine the regional distribution of norepinephrine (NE) in the hearts of sympathetically innervated (control) and chemically sympathectomized rats. Key features of the method are (i) the sample preparation and clean-up step that involved the application of off-line solid phase extraction (SPE) with a 95% NE recovery and (ii) the use of a diamond microelectrode for detection. NE was quantified in the left and right ventricle, the ventricular septum, and the left and right atrium. The NE concentration in the atria was three to five times higher than in the ventricles and ventricular septum of control rats. Basal NE levels in the left and right ventricle and the ventricular septum were reduced to below the detection limit (0.034 microg/g tissue) in tissues treated with the neurotoxin, 6-hydroxydopamine (6-OHDA), while only a moderate reduction was observed in the left and right atrium. Importantly, the diamond microelectrode provided low and stable background current and low peak-to-peak noise <or=0.65 pA at a detection potential of +0.86 V versus Ag/AgCl. A reproducible electrode response was observed for multiple injections of tissue homogenates with minimal response attenuation due to electrode fouling.
Collapse
Affiliation(s)
- Martin Novotny
- Department of Chemistry and the Neuroscience Program, Michigan State University, East Lansing, MI, 48824
| | - Veronika Quaiserova-Mocko
- Department of Chemistry and the Neuroscience Program, Michigan State University, East Lansing, MI, 48824
| | - Erica A. Wehrwein
- Department of Physiology and the Neuroscience Program, Michigan State University, East Lansing, MI, 48824
| | - David L. Kreulen
- Department of Physiology and the Neuroscience Program, Michigan State University, East Lansing, MI, 48824
- Corresponding authors: Greg M. Swain, Department of Chemistry, Michigan State University, 320 Chemistry Building, East Lansing, MI 48824-1322. Tel. (517) 355-9715 x229, Fax. (517)353-1793, Email. . David L. Kreulen, Department of Physiology, Michigan State University, 2201 Biomedical Physical Sciences Building, East Lansing, MI 48824-1320. Tel. (517) 355-6475 x1312, Fax. (517) 355-5125, Email.
| | - Greg M. Swain
- Department of Chemistry and the Neuroscience Program, Michigan State University, East Lansing, MI, 48824
- Corresponding authors: Greg M. Swain, Department of Chemistry, Michigan State University, 320 Chemistry Building, East Lansing, MI 48824-1322. Tel. (517) 355-9715 x229, Fax. (517)353-1793, Email. . David L. Kreulen, Department of Physiology, Michigan State University, 2201 Biomedical Physical Sciences Building, East Lansing, MI 48824-1320. Tel. (517) 355-6475 x1312, Fax. (517) 355-5125, Email.
| |
Collapse
|
24
|
Silva D, Menezes M, Kempinas W. Desenvolvimento e validação de método analítico para determinação simultânea de catecolaminas em órgãos reprodutores de ratos por cromatografia líquida de alta eficiência com detecção eletroquímica. ECLÉTICA QUÍMICA 2007. [DOI: 10.1590/s0100-46702007000400005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
O objetivo deste trabalho foi propor um método rápido e sensível para a determinação simultânea de catecolaminas (noradrenalina e adrenalina) em amostras de órgãos reprodutores de ratos machos por Cromatografia Líquida de Alta Eficiência com Detecção Eletroquímica. O método envolveu a injeção direta do extrato ácido da amostra de tecido em uma coluna cromatográfica com superfície interna de fase (HSA-C18), empregando a fase móvel foi composta por solução de ácido metanosulfônico a 0.013mol L-1 (pH = 3.0): acetonitrila (96:4v/v), 0,033g ácido heptanosulfônico e 0,01g EDTA. A detecção dos analitos foi obtida, através de um detector eletroquímico L-ECD-6-A-Shimadzu com potencial em 85mV. A extração das catecolaminas foi utilizado ácido perclórico a 0,4 mol L-1. A extração do analito resultou em valores de recuperação entre 56% e 114%, e coeficiente de variação entre 3,8% a 23%. O limite de quantificação do método ficou entre 0,008 e 0,030 ng mg-1 para a noradrenalina, e 0,009 e 0,051 ng mg-1 para a adrenalina. Em conclusão, o método analítico foi validado e aplicado com desempenho às amostras reais de tecidos biológicos de ratos, permitindo a determinação de baixas concentrações das catecolaminas estudadas. O método apresentou várias vantagens: rapidez, alta precisão, boa seletividade e, ainda, não requer o pré-tratamento da amostra.
Collapse
|
25
|
Byers JP, Masters K, Sarver JG, Hassoun EA. Association between the levels of biogenic amines and superoxide anion production in brain regions of rats after subchronic exposure to TCDD. Toxicology 2006; 228:291-8. [PMID: 17070641 PMCID: PMC1987358 DOI: 10.1016/j.tox.2006.09.009] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2006] [Revised: 08/18/2006] [Accepted: 09/24/2006] [Indexed: 11/20/2022]
Abstract
The effects of TCDD on the distribution of biogenic amines and production of superoxide anion (SA) in different brain regions of rats have been studied after subchronic exposure. Groups of females Sprague-Dawley rats were administered daily dose of 46ng TCDD/(kgday) (treated groups), or the vehicle used to dissolve TCDD (control group), for 90 days. The rats were sacrificed at the end of the exposure period and their brains were dissected into different regions including, hippocampus (H), cerebral cortex (Cc), cerebellum (C), and brain stem (Bs). The levels of different biogenic amines and some of their metabolites, including, norepinephrine (NE), dopamine (DA), 3,4-dihydroxy phenyl acetic acid (DOPAC), 4-hydroxy-3-methoxy-phenyl acetic acid (HVA), 5-hydroxy tryptamine (5-HT), and 5-hydroxy indole 3-acetic acid (5-HIAA), were determined in those brain regions, using a high performance liquid chromatography (HPLC) system with an electrochemical detector. SA production was also determined in those regions, using the cytochrome c reduction method. Results of analyses indicate significant increases in the levels of DA, NE and DOPAC in H, NE and HVA in Cc, NE and DA in Bs and NE in C. SA production was significantly increased in H and Cc, but not in Bs or C. The results also indicated strong correlations between DA and DOPAC, and SA and NE in all of the brain regions, and also between SA and 5-HT/HIAA in H and Cc. These results may indicate the contribution of biogenic amines, especially NE and 5-HT/HIAA to SA overproduction in some brain regions and may also indicate the potential of long term neurotoxic effects of those biogenic amines, in response to subchronic exposure to TCDD.
Collapse
Affiliation(s)
- James P Byers
- College of Pharmacy, The University of Toledo, 2801 W. Bancroft Street, Toledo, OH 43606, USA
| | | | | | | |
Collapse
|
26
|
Zhang MY, Beyer CE. Measurement of neurotransmitters from extracellular fluid in brain by in vivo microdialysis and chromatography–mass spectrometry. J Pharm Biomed Anal 2006; 40:492-9. [PMID: 16125893 DOI: 10.1016/j.jpba.2005.07.025] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2005] [Revised: 07/06/2005] [Accepted: 07/13/2005] [Indexed: 11/22/2022]
Abstract
During the last three decades, a great deal of information has been discovered about chemical neurotransmission. However, the most important processes, namely the complex nature of neuronal circuitry, the "cross talk" between multiple neurotransmitter systems, and the varying effects neurochemicals have at different receptors, are still being explored. Techniques such as microdialysis are routinely employed to measure neurotransmitter levels in living tissue systems. Moreover, microdialysis studies have proven to be valuable in the investigation of neurodegenerative and psychiatric disease pathology, as well as in identifying novel drugs to treat such disorders. One particular challenge in performing these experiments is the requirement to couple microdialysis to sophisticated analytical equipment. Recently, considerable attention has been focused on the development of chromatographic-mass spectrometric techniques to provide more sensitive and accurate measurements of neurochemicals collected from in vivo microdialysis experiments. This review will provide a brief overview of the microdialysis technique, as well as how microdialysis and chromatography-mass spectrometry are being used to measure extracellular levels of neurotransmitters. The primary emphasis of this review will be on how these applications are used to measure levels of acetylcholine (ACh), dopamine, norepinephrine and gamma-aminobutyric acid (GABA).
Collapse
Affiliation(s)
- Mei-Yi Zhang
- Chemical and Screening Sciences, Wyeth Research, Princeton, NJ 08543, USA.
| | | |
Collapse
|
27
|
Hayashi K, Iwasaki Y, Kurita R, Sunagawa K, Niwa O, Tate A. The highly sensitive detection of catecholamines using a microfluidic device integrated with an enzyme-modified pre-reactor for interferent elimination and an interdigitated array electrode. J Electroanal Chem (Lausanne) 2005. [DOI: 10.1016/j.jelechem.2005.01.033] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
28
|
Yue ME, Jiang TF, Shi YP. Simultaneous determination of noradrenaline and dopamine inPortulaca oleraceaL. by capillary zone electrophoresis. J Sep Sci 2005; 28:360-4. [PMID: 15792250 DOI: 10.1002/jssc.200400045] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
A simple and rapid capillary electrophoretic method was developed for the simultaneous determination of noradrenaline (NA) and dopamine (DA) in Portulaca oleracea L. The buffer solution used in this method was 40 mM tris (hydroxymethyl) aminomethane (Tris)-H3PO4 at pH 2.00 containing 15% methanol. The effects of pH value, organic modifier, and applied voltage were investigated. The linear ranges of NA and DA were 0.5-100 microg/mL (r=0.9952) and 6.25-200 microg/mL (r=0.9992), respectively. The relative standard deviations of the corrected peak area were 6.73% and 4.26%, respectively. NA and DA in Portulaca oleracea L. were simultaneous determined successfully within 5.6 min. In this way, the contents of NA and DA in different parts (stem, leaves, and seeds) of P. oleracea L. and in different extracts of leaves with different solvents (distilled water, 50% methanol, and methanol) were studied.
Collapse
Affiliation(s)
- Mei-E Yue
- Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, PR China
| | | | | |
Collapse
|
29
|
Lang W, Masucci JA, Caldwell GW, Hageman W, Hall J, Jones WJ, Rafferty BM. Liquid chromatographic and tandem mass spectrometric assay for evaluation of in vivo inhibition of rat brain monoamine oxidases (MAO) A and B following a single dose of MAO inhibitors: application of biomarkers in drug discovery. Anal Biochem 2004; 333:79-87. [PMID: 15351283 DOI: 10.1016/j.ab.2004.07.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2004] [Indexed: 10/26/2022]
Abstract
A simple and selective assay for the evaluation of in vivo inhibition of rat brain monoamine oxidases (MAO) A and B following a single dose of MAO inhibitors was developed through the simultaneous determination of endogenous 5-hydroxy tryptamine, 5-hydroxyindole-3-acetic acid (5-HIAA), tryptophane, and 2-phenethylamine (PEA) in rat brain using liquid chromatography-tandem mass spectrometry (LC/MS/MS). These analytes were separated on a Zorbax SB-C18 column using a gradient elution with acetonitrile and 0.2% formic acid and detected on an electrospray ionization mass spectrometer in positive-ion multiple-reaction-monitoring mode. The susceptibility and variability of these analytes as potential biomarkers in response to MAO inhibition in vivo were evaluated after application to three MAO inhibitors, tranylcypromine, clorgyline, and pargyline. A dramatic increase (about 40-fold) in PEA brain level and a decrease in 5-HIAA by more than 90% were observed after administration of 15 mg/kg of the nonselective MAO inhibitor tranylcypromine. As expected, the brain level of PEA escalated to about 6-fold, while the 5-HIAA level remained unchanged following a dose of the MAO B inhibitor pargyline at 2mg/kg. In contrast, the brain level of 5-HIAA reduced by approximately 53%, but the PEA level was unaffected following the same dose of the MAO A inhibitor clorgyline. The results indicated that 5-HIAA and PEA were susceptible and effective biomarkers in the rat brain in response to MAO A and B inhibition, respectively. The LC/MS/MS method is useful not only for the determination of inhibitory potency but also for the differentiation of the selectivity of a MAO inhibitor against rat brain MAO A and B in vivo.
Collapse
Affiliation(s)
- Wensheng Lang
- Johnson and Johnson Pharmaceutical Research and Development, Drug Discovery, Welsh and McKean Roads, Spring House, PA 19477, USA.
| | | | | | | | | | | | | |
Collapse
|
30
|
Hows MEP, Lacroix L, Heidbreder C, Organ AJ, Shah AJ. High-performance liquid chromatography/tandem mass spectrometric assay for the simultaneous measurement of dopamine, norepinephrine, 5-hydroxytryptamine and cocaine in biological samples. J Neurosci Methods 2004; 138:123-32. [PMID: 15325120 DOI: 10.1016/j.jneumeth.2004.03.021] [Citation(s) in RCA: 124] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2003] [Revised: 03/22/2004] [Accepted: 03/26/2004] [Indexed: 10/26/2022]
Abstract
A rapid liquid chromatography/tandem mass spectrometry (LC-MS/MS) method has been developed for the measurement of dopamine (DA), 5-hydroxytryptamine (5HT) and norepinephrine (NE) in brain microdialysates. The assay has also been utilised for the simultaneous measurement of these neurotransmitters and cocaine in brain dialysates. The neurotransmitters and cocaine were resolved in a single 4-min run using a binary gradient elution profile. The analytes were detected using tandem mass spectrometry in the positive ion electrospray mode. The limits of detection for DA, NE, 5HT and cocaine were 200, 1000, 900 pM and 1 pg ml(-1), respectively.
Collapse
Affiliation(s)
- Mark E P Hows
- Computational Analytical and Structural Sciences, Psychiatry CEDD, GlaxoSmithKline, Via A. Fleming 4, 37135 Verona, Italy.
| | | | | | | | | |
Collapse
|
31
|
Chen J, Shi YP, Liu JY. Determination of noradrenaline and dopamine in Chinese herbal extracts from Portulaca oleracea L. by high-performance liquid chromatography. J Chromatogr A 2003; 1003:127-32. [PMID: 12899302 DOI: 10.1016/s0021-9673(03)00786-6] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
A simple, rapid and accurate high-performance liquid chromatographic (HPLC) technique coupled with photodiode array (PDA) detection was developed for the simultaneous determination of noradrenaline (NA) and dopamine (DA) in Chinese herbal plant extracts from the different parts of Portulaca oleracea L. The effects of various parameters, such as sodium dodecyl sulfate (SDS) concentration, pH value and proportion of methanol on chromatographic behavior of the analytes (NA and DA) were investigated. Separation of NA and DA was achieved within 10 min by a mobile phase consisting of 70% (v/v) methanol and 0.02 M potassium dihydrogen phosphate solution, which contained 30 mM SDS and was adjusted to pH 3.0 with H3PO4. NA and DA showed good linear relationships in the range of 0.004-6.00 microg and 0.011-8.25 microg respectively. The correlation coefficients of the calibration curve for the analytes exceeded 0.999. The detection limits for NA and DA were 0.40 ng and 0.55 ng, at a signal-to-noise ratio of 3, respectively. Moreover, the optimized HPLC method was employed to analyze three different parts of Portulaca oleracea L.
Collapse
Affiliation(s)
- Juan Chen
- Key Laboratory for Natural Medicine of Gansu Province, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Tianshui Road 342, Lanzhou 730000, China
| | | | | |
Collapse
|
32
|
Pappa-Louisi A. Observations on the Use of Electrochemical Detection for the High-Performance Liquid Chromatographic Determination of Catechol and Indole Derivatives. ANAL LETT 2003. [DOI: 10.1081/al-120019258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
|
33
|
Hanai T, Kaneko K, Homma H. Semi-micro liquid chromatography of aromatic amino acid metabolites using isocratic elution and column switching. Biomed Chromatogr 2002; 16:420-4. [PMID: 12228900 DOI: 10.1002/bmc.176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
The concentrations of catecholamine-related compounds in body fluids reflect sympathetic nerve functions. Measuring the enzyme activity of these metabolic pathways will improve diagnosis since a variety of symptoms are reported. An isocratic elution system with two column switching valves was developed using three types of semi-micro columns for fast chromatographic analysis of catecholamine related compounds. Columns are a pentyl-bonded phase, 50 x 2.1 mm i.d., a phenylhexyl-bonded phase, 100 x 2.1 mm i.d. and an octadecyl-bonded phase, 100 x 2.1 mm i.d. The separation of 20 standard compounds was achieved within 25 min using reversed-phase ion-pair liquid chromatography with an electrochemical detector. This new system was applied for analysis of catecholamine-related compounds in pig brain, since pigs are a widely used animal model for transgenic manipulation of neural genes, and MHPG (or VMA), DOPAC, DOPA, NE, EP, DA, 5HTP and 5HIAA were quantified.
Collapse
Affiliation(s)
- Toshihiko Hanai
- Health Research Foundation, Institut Pasteur 5F, Sakyo-ku, Kyoto 606 Japan
| | | | | |
Collapse
|
34
|
Vaarmann A, Kask A, Mäeorg U. Novel and sensitive high-performance liquid chromatographic method based on electrochemical coulometric array detection for simultaneous determination of catecholamines, kynurenine and indole derivatives of tryptophan. J Chromatogr B Analyt Technol Biomed Life Sci 2002; 769:145-53. [PMID: 11936687 DOI: 10.1016/s1570-0232(01)00639-0] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A novel and simple method has been developed for the simultaneous quantification of tryptophan, kynurenine and indole derivatives as well as four catecholamines, including dopamine, noradrenaline, homovanillic acid and 3,4-dihydroxyphenylacetic acid. The method utilises isocratic reversed-phase high-performance liquid chromatography with electrochemical coulometric array detection. The influence of various parameters on chromatographic performance, such as the composition and the pH of the mobile phase and the detection potentials, was investigated. Separation of 13 compounds was achieved by a mobile phase consisting of 10% methanol in 50 mM sodium phosphate-acetate buffer, pH 4.10, containing 0.42 mM octanesulphonic acid. The calibration curve was linear over the range 12 pg to 300 ng on-column. The detection limits (SIN 3) depended on the working potential and were found to be between 10 and 100 pg injected. The method was reproducible with intra-day RSDs of 0.3 to 1.5% and inter-day RSDs of 0.5 to 4%.
Collapse
|
35
|
Ościk-Mendyk B, Janicka M, Kwietniewski L. The effect of stationary phase type and mobile phase pH on the separation of some catecholamines. JPC-J PLANAR CHROMAT 2001. [DOI: 10.1556/jpc.14.2001.4.6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
36
|
Franklin M, Chi JD, Mannel M, Cowen PJ. Acute effects of LI 160 (extract of Hypericum perforatum, St John's wort) and two of its constituents on neuroendocrine responses in the rat. J Psychopharmacol 2001; 14:360-3. [PMID: 11198053 DOI: 10.1177/026988110001400404] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Extracts of Hypericum perforatum (St John's wort), such as LI 160, which are effective antidepressants have several active constituents. Their mode of action in depression, however, is unclear. In the present investigation, we assessed the effect of equivalent doses of LI 160 and two of its components, hypericin and hyperforin on serotonin (5-HT) and dopamine (DA)-mediated neuroendocrine responses in the rat. LI 160, hypericin and hyperforin significantly and equivalently increased plasma corticosterone. This effect was blocked by ketanserin but not WAY-100635, suggesting mediation via 5-HT2 receptors. LI 160 also lowered plasma prolactin and prevented the increase in plasma prolactin following haloperidol administration. Hyperforin had a similar but somewhat less pronounced effect. We conclude that LI 160, hypericin and hyperforin all increase 5-HT-mediated corticosterone release while LI 160 enhances DA-mediated inhibition of prolactin release. Hyperforin may contribute to the facilitatory effect of LI 160 on DA function, but hypericin does not.
Collapse
Affiliation(s)
- M Franklin
- University Department of Psychiatry, Warneford Hospital, Oxford, UK.
| | | | | | | |
Collapse
|
37
|
Development of a new FIA-potentiometric sensor for dopamine based on EVA-copper(II) ions. J Electroanal Chem (Lausanne) 2000. [DOI: 10.1016/s0022-0728(99)00474-x] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|