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Huang Z, Wu J, Guan Y, Wei Y, Xie F, Shen Y. PET/CT study of dopamine transporter (DAT) binding with the triple reuptake inhibitor toludesvenlafaxine in rats and humans. Eur J Nucl Med Mol Imaging 2024:10.1007/s00259-024-06700-2. [PMID: 38587645 DOI: 10.1007/s00259-024-06700-2] [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: 09/30/2023] [Accepted: 03/19/2024] [Indexed: 04/09/2024]
Abstract
PURPOSE Toludesvenlafaxine is a recently developed antidepressant that belongs to the triple reuptake inhibitor class. Despite the in vitro evidence that toludesvenlafaxine inhibits the reuptake of serotonin (5-HT), norepinephrine (NE) and dopamine (DA), there is no in vivo evidence that toludesvenlafaxine binds to DAT and increases DA level, a mechanism thought to contribute to its favorable clinical performance. METHODS Positron emission tomography/computed tomography (PET/CT) was used to examine the DAT binding capacity in healthy rats and human subjects and microdialysis was used to examine the striatal DA level in rats. [18F]FECNT and [11C]CFT were used as PET/CT radioactive tracer for rat and human studies, respectively. RESULTS In rats, 9 mg/kg of toludesvenlafaxine hydrochloride (i.v.) followed by an infusion of 3 mg/kg via minipump led to the binding rate to striatum DAT at 3.7 - 32.41% and to hypothalamus DAT at 5.91 - 17.52% during the 45 min scanning period. 32 mg/kg oral administration with toludesvenlafaxine hydrochloride significantly increased the striatal DA level with the AUC0 - 180 min increased by 63.9%. In healthy volunteers, 160 mg daily toludesvenlafaxine hydrochloride sustained-release tablets for 4 days led to an average occupancy rates of DAT at 8.04% ± 7.75% and 8.09% ± 7.00%, respectively, in basal ganglion 6 h and 10 h postdose. CONCLUSION These results represent the first to confirm the binding of toludesvenlafaxine to DAT in both rats and humans using PET/CT, and its elevation of brain DA level, which may help understand the unique pharmacological and functional effects of triple reuptake inhibitors such as toludesvenlafaxine. CLINICALTRIALS GOV IDENTIFIERS NCT05905120. Registered 14 June 2023. (retrospectively registered).
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Affiliation(s)
- Zhiwei Huang
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Junhao Wu
- Department of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Yihui Guan
- Department of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China
| | - Yumei Wei
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Fang Xie
- Department of Nuclear Medicine & PET Center, Huashan Hospital, Fudan University, Shanghai, China.
| | - Yifeng Shen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai, China.
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Piatkova Y, Doyen M, Heyer S, Tahmazov A, Frismand S, Hopes L, Imbert L, Verger A. Effects of medication on dopamine transporter imaging using [ 123I]I-FP-CIT SPECT in routine practice. Eur J Nucl Med Mol Imaging 2024; 51:1323-1332. [PMID: 38114618 DOI: 10.1007/s00259-023-06565-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2023] [Accepted: 12/08/2023] [Indexed: 12/21/2023]
Abstract
PURPOSE Dopamine transporter (DAT) imaging is used to support the diagnosis of neurodegenerative parkinsonian disorders. Specific medications have been reported to confound the interpretation of [123I]I-FP-CIT SPECT scans, but there is limited data. The aim of the current study is to identify potential medication effects on the interpretation of [123I]I-FP-CIT SPECT scans in routine practice. MATERIALS AND METHODS Consecutive patients undergoing a [123I]I-FP-CIT SPECT/CT scan on a 360° CZT camera between September 2019 and December 2022 were included. An exhaustive review of patient medications (antidepressants, antipsychotics, anti-epileptics, anti-parkinsonians, benzodiazepines, lithium, opioids, and stimulants) was performed. Two experienced nuclear physicians, blinded to the medication reports, interpreted the [123I]I-FP-CIT SPECT scans visually and a semi-quantitative analysis was performed using a local normal database. RESULTS The study included 305 patients (71.0 ± 10.4, 135 women) and 145 (47.5%) visually interpreted normal scans. In normal scans, the striatum/occiput radioligand uptake ratio was decreased by noradrenergic and specific serotonergic antidepressants (NASSAs) (n = 15, z-score of - 0.93) and opioid medication (tramadol, n = 6, z-score of - 0.85) and was associated with a younger age in the multivariate analysis. In the overall population, the striatum/occiput ratio was influenced by NASSAs and associated with consensual visual analysis, age, sex, and anti-parkinsonian medications related to the status of the disease. CONCLUSION Our study confirms the potential impact of antidepressant (NASSA) and opioid (tramadol) medications on the semi-quantitative analysis of [123I]I-FP-CIT SPECT scans. However, when performing a visual analysis, only NASSAs significantly impacted the interpretation of [123I]I-FP-CIT SPECT scans.
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Affiliation(s)
- Yuliya Piatkova
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, Université de Lorraine, CHRU Nancy, F-54000, Nancy, France
| | - Matthieu Doyen
- IADI, INSERM U1254, Université de Lorraine, F-54000, Nancy, France
| | - Sébastien Heyer
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, Université de Lorraine, CHRU Nancy, F-54000, Nancy, France
| | - Ayaz Tahmazov
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, Université de Lorraine, CHRU Nancy, F-54000, Nancy, France
| | - Solene Frismand
- Department of Neurology, Université de Lorraine, CHRU de Nancy, F-54000, Nancy, France
| | - Lucie Hopes
- Department of Neurology, Université de Lorraine, CHRU de Nancy, F-54000, Nancy, France
| | - Laetitia Imbert
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, Université de Lorraine, CHRU Nancy, F-54000, Nancy, France
- IADI, INSERM U1254, Université de Lorraine, F-54000, Nancy, France
| | - Antoine Verger
- Department of Nuclear Medicine and Nancyclotep Imaging Platform, Université de Lorraine, CHRU Nancy, F-54000, Nancy, France.
- IADI, INSERM U1254, Université de Lorraine, F-54000, Nancy, France.
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Lense XM, Hiemke C, Funk CSM, Havemann-Reinecke U, Hefner G, Menke A, Mössner R, Riemer TG, Scherf-Clavel M, Schoretsanitis G, Gründer G, Hart XM. Venlafaxine's therapeutic reference range in the treatment of depression revised: a systematic review and meta-analysis. Psychopharmacology (Berl) 2024; 241:275-289. [PMID: 37857898 PMCID: PMC10806172 DOI: 10.1007/s00213-023-06484-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/10/2023] [Indexed: 10/21/2023]
Abstract
INTRODUCTION The selective serotonin and norepinephrine reuptake inhibitor venlafaxine is among the most prescribed antidepressant drugs worldwide and, according to guidelines, its dose titration should be guided by drug-level monitoring of its active moiety (AM) which consists of venlafaxine (VEN) plus active metabolite O-desmethylvenlafaxine (ODV). This indication of therapeutic drug monitoring (TDM), however, assumes a clear concentration/effect relationship for a drug, which for VEN has not been systematically explored yet. OBJECTIVES We performed a systematic review and meta-analysis to investigate the relationship between blood levels, efficacy, and adverse reactions in order to suggest an optimal target concentration range for VEN oral formulations for the treatment of depression. METHODS Four databases (MEDLINE (PubMed), PsycINFO, Web of Science Core Collection, and Cochrane Library) were systematically searched in March 2022 for relevant articles according to a previously published protocol. Reviewers independently screened references and performed data extraction and critical appraisal. RESULTS High-quality randomized controlled trials investigating concentration/efficacy relationships and studies using a placebo lead-in phase were not found. Sixty-eight articles, consisting mostly of naturalistic TDM studies or small noncontrolled studies, met the eligibility criteria. Of them, five cohort studies reported a positive correlation between blood levels and antidepressant effects after VEN treatment. Our meta-analyses showed (i) higher AM and (ii) higher ODV concentrations in patients responding to VEN treatment when compared to non-responders (n = 360, k = 5). AM concentration-dependent occurrence of tremor was reported in one study. We found a linear relationship between daily dose and AM concentration within guideline recommended doses (75-225 mg/day). The population-based concentration ranges (25-75% interquartile) among 11 studies (n = 3200) using flexible dosing were (i) 225-450 ng/ml for the AM and (ii) 144-302 ng/ml for ODV. One PET study reported an occupancy of 80% serotonin transporters for ODV serum levels above 85 ng/ml. Based on our findings, we propose a therapeutic reference range for AM of 140-600 ng/ml. CONCLUSION VEN TDM within a range of 140 to 600 ng/ml (AM) will increase the probability of response in nonresponders. A titration within the proposed reference range is recommended in case of non-response at lower drug concentrations as a consequence of VEN's dual mechanism of action via combined serotonin and norepinephrine reuptake inhibition. Drug titration towards higher concentrations will, however, increase the risk for ADRs, in particular with supratherapeutic drug concentrations.
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Affiliation(s)
- X M Lense
- Department of Molecular Neuroimaging, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Heidelberg 68159 University J5, Mannheim, Germany.
| | - C Hiemke
- Clinic of Psychiatry and Psychotherapy, University of Mainz, Mainz, Germany
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
| | - C S M Funk
- Institute of Clinical Pharmacology and Toxicology, Charité University, Berlin, Germany
| | - U Havemann-Reinecke
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
- Clinic of Psychiatry and Psychotherapy, University of Göttingen, Göttingen, Germany
| | - G Hefner
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
- Vitos Clinic of Forensic Psychiatry, Eltville, Germany
| | - A Menke
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
- Psychosomatic Clinic Medical Park Chiemseeblick, Bernau a. Chiemsee, Germany
- Department of Psychiatry and Psychotherapy, University Hospital, Ludwig Maximilian University of Munich, Munich, Germany
| | - R Mössner
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
- Department of Psychiatry and Psychotherapy, University Hospital of Tübingen, Tübingen, Germany
| | - T G Riemer
- Institute of Clinical Pharmacology and Toxicology, Charité University, Berlin, Germany
| | - M Scherf-Clavel
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - G Schoretsanitis
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
- Department of Psychiatry, Psychotherapy and Psychosomatics, University Hospital of Zürich, Zürich, Switzerland
| | - G Gründer
- Department of Molecular Neuroimaging, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Heidelberg 68159 University J5, Mannheim, Germany
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
| | - X M Hart
- Department of Molecular Neuroimaging, Medical Faculty Mannheim, Central Institute of Mental Health, University of Heidelberg, Heidelberg 68159 University J5, Mannheim, Germany
- Arbeitsgemeinschaft für Neuropsychopharmakologie und Pharmakopsychiatrie (AGNP), Working Group "Therapeutic Drug Monitoring", Munich, Germany
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Pitton Rissardo J, Caprara ALF. Neuroimaging Techniques in Differentiating Parkinson's Disease from Drug-Induced Parkinsonism: A Comprehensive Review. Clin Pract 2023; 13:1427-1448. [PMID: 37987429 PMCID: PMC10660852 DOI: 10.3390/clinpract13060128] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2023] [Revised: 10/19/2023] [Accepted: 11/13/2023] [Indexed: 11/22/2023] Open
Abstract
Neuroimaging can provide significant benefits in evaluating patients with movement disorders associated with drugs. This literature review describes neuroimaging techniques performed to distinguish Parkinson's disease from drug-induced parkinsonism. The dopaminergic radiotracers already reported to assess patients with drug-induced parkinsonism are [123I]-FP-CIT, [123I]-β-CIT, [99mTc]-TRODAT-1, [18F]-DOPA, [18F]-AV-133, and [18F]-FP-CIT. The most studied one and the one with the highest number of publications is [123I]-FP-CIT. Fludeoxyglucose (18F) revealed a specific pattern that could predict individuals susceptible to developing drug-induced parkinsonism. Another scintigraphy method is [123I]-MIBG cardiac imaging, in which a relationship between abnormal cardiac imaging and normal dopamine transporter imaging was associated with a progression to degenerative disease in individuals with drug-induced parkinsonism. Structural brain magnetic resonance imaging can be used to assess the striatal region. A transcranial ultrasound is a non-invasive method with significant benefits regarding costs and availability. Optic coherence tomography only showed abnormalities in the late phase of Parkinson's disease, so no benefit in distinguishing early-phase Parkinson's disease and drug-induced parkinsonism was found. Most methods demonstrated a high specificity in differentiating degenerative from non-degenerative conditions, but the sensitivity widely varied in the studies. An algorithm was designed based on clinical manifestations, neuroimaging, and drug dose adjustment to assist in the management of patients with drug-induced parkinsonism.
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Chahid Y, Sheikh ZH, Mitropoulos M, Booij J. A systematic review of the potential effects of medications and drugs of abuse on dopamine transporter imaging using [ 123I]I-FP-CIT SPECT in routine practice. Eur J Nucl Med Mol Imaging 2023; 50:1974-1987. [PMID: 36847827 PMCID: PMC10199883 DOI: 10.1007/s00259-023-06171-x] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Accepted: 02/18/2023] [Indexed: 03/01/2023]
Abstract
PURPOSE In routine practice, dopamine transporter (DAT) imaging is frequently used as a diagnostic tool to support the diagnosis of Parkinson's disease or dementia with Lewy bodies. In 2008, we published a review on which medications and drugs of abuse may influence striatal [123I]I-FP-CIT binding and consequently may influence the visual read of an [123I]I-FP-CIT SPECT scan. We made recommendations on which drugs should be withdrawn before performing DAT imaging in routine practice. Here, we provide an update of the original work based on published research since 2008. METHODS We performed a systematic review of literature without language restriction from January 2008 until November 2022 to evaluate the possible effects of medications and drugs of abuse, including the use of tobacco and alcohol, on striatal DAT binding in humans. RESULTS The systematic literature search identified 838 unique publications, of which 44 clinical studies were selected. Using this approach, we found additional evidence to support our original recommendations as well as some new findings on potential effect of other medications on striatal DAT binding. Consequently, we updated the list of medications and drugs of abuse that may influence the visual read of [123I]I-FP-CIT SPECT scans in routine clinical practice. CONCLUSION We expect that a timely withdrawal of these medications and drugs of abuse before DAT imaging may reduce the incidence of false-positive reporting. Nevertheless, the decision to withdraw any medication must be made by the specialist in charge of the patient's care and considering the pros and cons of doing so.
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Affiliation(s)
- Youssef Chahid
- Amsterdam UMC location University of Amsterdam, Radiology and Nuclear Medicine, Meibergdreef 9, Amsterdam, The Netherlands.
- Amsterdam UMC location University of Amsterdam, Clinical Pharmacy, Meibergdreef 9, Amsterdam, The Netherlands.
| | - Zulfiqar H Sheikh
- GE Healthcare, Pharmaceutical Diagnostics, Nightingales Ln, Chalfont Saint Giles, United Kingdom
| | - Max Mitropoulos
- GE Healthcare, Pharmaceutical Diagnostics, Nightingales Ln, Chalfont Saint Giles, United Kingdom
| | - Jan Booij
- Amsterdam UMC location University of Amsterdam, Radiology and Nuclear Medicine, Meibergdreef 9, Amsterdam, The Netherlands
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Seibyl JP. Imaging Biomarkers for Central Nervous System Drug Development and Future Clinical Utility: Lessons from Neurodegenerative Disorders. J Nucl Med 2023; 64:12-19. [PMID: 36302659 DOI: 10.2967/jnumed.122.264773] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2022] [Revised: 09/28/2022] [Accepted: 09/28/2022] [Indexed: 01/07/2023] Open
Abstract
Diseases of the central nervous system are common and often chronic conditions associated with significant morbidity. In particular, neurodegenerative disorders including Alzheimer and Parkinson disease constitute a major health and socioeconomic challenge, with an increasing incidence in many industrialized countries with aging populations. Recent work has established the primary role of abnormal protein accumulation and the spread of disease-specific deposits in brain as a factor in neurotoxicity and disruption of functional networks. A range of therapeutics from small molecules to antibodies targeting these proteinopathies are now in phase 2 and phase 3 clinical trials. These studies are methodologically challenging because of difficulty in accurately diagnosing early disease, the slow and variable rates of progression between individuals, and efficacy measures that may be cofounded by symptomatic improvements due to treatment but not reflecting disease course modification. Further, the ideal candidates for these treatments would be at-risk, or premanifest, persons in whom the pathologic process of the neurodegenerative disorder has begun but who are clinically normal and extremely difficult to identify. Scintigraphic imaging with PET and SPECT in trials offers the opportunity to interrogate pathophysiologic processes such as protein deposition with high specificity. This review summarizes the current implementation of these imaging biomarkers and the implications for future management of neurodegenerative disorders and central nervous system drug development in general.
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Affiliation(s)
- John P Seibyl
- Institute for Neurodegenerative Disorders, New Haven, Connecticut
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7
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Sørensen A, Ruhé HG, Munkholm K. The relationship between dose and serotonin transporter occupancy of antidepressants-a systematic review. Mol Psychiatry 2022; 27:192-201. [PMID: 34548628 PMCID: PMC8960396 DOI: 10.1038/s41380-021-01285-w] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 08/11/2021] [Accepted: 08/25/2021] [Indexed: 11/09/2022]
Abstract
Brain imaging techniques enable the visualization of serotonin transporter (SERT) occupancy as a measure of the proportion of SERT blocked by an antidepressant at a given dose. We aimed to systematically review the evidence on the relationship between antidepressant dose and SERT occupancy. We searched PubMed and Embase (last search 20 May 2021) for human in vivo, within-subject PET, or SPECT studies measuring SERT occupancy at any dose of any antidepressant with highly selective radioligands ([11C]-DASB, [123I]-ADAM, and [11C]-MADAM). We summarized and visualized the dose-occupancy relationship for antidepressants across studies, overlaying the plots with a curve based on predicted values of a standard 2-parameter Michaelis-Menten model fitted using the observed data. We included seventeen studies of 10 different SSRIs, SNRIs, and serotonin modulators comprising a total of 294 participants, involving 309 unique occupancy measures. Overall, following the Michaelis-Menten equation, SERT occupancy increased with a higher dose in a hyperbolic relationship, with occupancy increasing rapidly at lower doses and reaching a plateau at approximately 80% at the usual minimum recommended dose. All the studies were small, only a few investigated the same antidepressant, dose, and brain region, and few reported information on factors that may influence SERT occupancy. The hyperbolic dose-occupancy relationship may provide mechanistic insight of relevance to the limited clinical benefit of dose-escalation in antidepressant treatment and the potential emergence of withdrawal symptoms. The evidence is limited by non-transparent reporting, lack of standardized methods, small sample sizes, and short treatment duration. Future studies should standardize the imaging and reporting procedures, measure occupancy at lower antidepressant doses, and investigate the moderators of the dose-occupancy relationship.
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Affiliation(s)
- Anders Sørensen
- Nordic Cochrane Centre, Rigshospitalet, Copenhagen, Denmark.
| | - Henricus G. Ruhé
- grid.10417.330000 0004 0444 9382Department of Psychiatry, Radboudumc, Nijmegen, The Netherlands ,grid.5590.90000000122931605Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, The Netherlands
| | - Klaus Munkholm
- grid.10825.3e0000 0001 0728 0170Centre for Evidence-Based Medicine Odense (CEBMO) and Cochrane Denmark, Department of Clinical Research, University of Southern Denmark, Odense, Denmark ,grid.7143.10000 0004 0512 5013Open Patient data Exploratory Network (OPEN), Odense University Hospital, Odense, Denmark
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8
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Eap CB, Gründer G, Baumann P, Ansermot N, Conca A, Corruble E, Crettol S, Dahl ML, de Leon J, Greiner C, Howes O, Kim E, Lanzenberger R, Meyer JH, Moessner R, Mulder H, Müller DJ, Reis M, Riederer P, Ruhe HG, Spigset O, Spina E, Stegman B, Steimer W, Stingl J, Suzen S, Uchida H, Unterecker S, Vandenberghe F, Hiemke C. Tools for optimising pharmacotherapy in psychiatry (therapeutic drug monitoring, molecular brain imaging and pharmacogenetic tests): focus on antidepressants. World J Biol Psychiatry 2021; 22:561-628. [PMID: 33977870 DOI: 10.1080/15622975.2021.1878427] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Objectives: More than 40 drugs are available to treat affective disorders. Individual selection of the optimal drug and dose is required to attain the highest possible efficacy and acceptable tolerability for every patient.Methods: This review, which includes more than 500 articles selected by 30 experts, combines relevant knowledge on studies investigating the pharmacokinetics, pharmacodynamics and pharmacogenetics of 33 antidepressant drugs and of 4 drugs approved for augmentation in cases of insufficient response to antidepressant monotherapy. Such studies typically measure drug concentrations in blood (i.e. therapeutic drug monitoring) and genotype relevant genetic polymorphisms of enzymes, transporters or receptors involved in drug metabolism or mechanism of action. Imaging studies, primarily positron emission tomography that relates drug concentrations in blood and radioligand binding, are considered to quantify target structure occupancy by the antidepressant drugs in vivo. Results: Evidence is given that in vivo imaging, therapeutic drug monitoring and genotyping and/or phenotyping of drug metabolising enzymes should be an integral part in the development of any new antidepressant drug.Conclusions: To guide antidepressant drug therapy in everyday practice, there are multiple indications such as uncertain adherence, polypharmacy, nonresponse and/or adverse reactions under therapeutically recommended doses, where therapeutic drug monitoring and cytochrome P450 genotyping and/or phenotyping should be applied as valid tools of precision medicine.
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Affiliation(s)
- C B Eap
- Unit of Pharmacogenetics and Clinical Psychopharmacology, Center for Psychiatric Neurosciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.,Center for Research and Innovation in Clinical Pharmaceutical Sciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland.,School of Pharmaceutical Sciences, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, Geneva, Switzerland.,Institute of Pharmaceutical Sciences of Western Switzerland, University of Lausanne, Switzerland, Geneva, Switzerland
| | - G Gründer
- Department of Molecular Neuroimaging, Central Institute of Mental Health, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - P Baumann
- Department of Psychiatry, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - N Ansermot
- Unit of Pharmacogenetics and Clinical Psychopharmacology, Center for Psychiatric Neurosciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - A Conca
- Department of Psychiatry, Health Service District Bolzano, Bolzano, Italy.,Department of Child and Adolescent Psychiatry, South Tyrolean Regional Health Service, Bolzano, Italy
| | - E Corruble
- INSERM CESP, Team ≪MOODS≫, Service Hospitalo-Universitaire de Psychiatrie, Universite Paris Saclay, Le Kremlin Bicetre, France.,Service Hospitalo-Universitaire de Psychiatrie, Hôpital Bicêtre, Assistance Publique Hôpitaux de Paris, Le Kremlin Bicêtre, France
| | - S Crettol
- Unit of Pharmacogenetics and Clinical Psychopharmacology, Center for Psychiatric Neurosciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - M L Dahl
- Division of Clinical Pharmacology, Department of Laboratory Medicine, Karolinska Institutet, Karolinska University Hospital, Stockholm, Sweden
| | - J de Leon
- Eastern State Hospital, University of Kentucky Mental Health Research Center, Lexington, KY, USA
| | - C Greiner
- Bundesinstitut für Arzneimittel und Medizinprodukte, Bonn, Germany
| | - O Howes
- King's College London and MRC London Institute of Medical Sciences (LMS)-Imperial College, London, UK
| | - E Kim
- Department of Brain and Cognitive Sciences, Seoul National University College of Natural Sciences, Seoul, South Korea.,Department of Psychiatry, Seoul National University College of Medicine, Seoul, South Korea
| | - R Lanzenberger
- Department of Psychiatry and Psychotherapy, Medical University of Vienna, Vienna, Austria
| | - J H Meyer
- Campbell Family Mental Health Research Institute, CAMH and Department of Psychiatry, University of Toronto, Toronto, Canada
| | - R Moessner
- Department of Psychiatry and Psychotherapy, University of Tübingen, Tübingen, Germany
| | - H Mulder
- Department of Clinical Pharmacy, Wilhelmina Hospital Assen, Assen, The Netherlands.,GGZ Drenthe Mental Health Services Drenthe, Assen, The Netherlands.,Department of Pharmacotherapy, Epidemiology and Economics, Department of Pharmacy and Pharmaceutical Sciences, University of Groningen, Groningen, The Netherlands.,Department of Psychiatry, Interdisciplinary Centre for Psychopathology and Emotion Regulation, University of Groningen, Groningen, The Netherlands
| | - D J Müller
- Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health, Toronto, ON, Canada.,Department of Psychiatry, University of Toronto, Toronto, ON, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - M Reis
- Department of Biomedical and Clinical Sciences, Linköping University, Linköping, Sweden.,Clinical Chemistry and Pharmacology, Skåne University Hospital, Lund, Sweden
| | - P Riederer
- Center of Mental Health, Clinic and Policlinic for Psychiatry, Psychosomatics and Psychotherapy, University Hospital Würzburg, Würzburg, Germany.,Department of Psychiatry, University of Southern Denmark Odense, Odense, Denmark
| | - H G Ruhe
- Department of Psychiatry, Radboudumc, Nijmegen, the Netherlands.,Donders Institute for Brain, Cognition and Behavior, Radboud University, Nijmegen, Netherlands
| | - O Spigset
- Department of Clinical Pharmacology, St. Olav University Hospital, Trondheim, Norway.,Department of Clinical and Molecular Medicine, Norwegian University of Science and Technology, Trondheim, Norway
| | - E Spina
- Department of Clinical and Experimental Medicine, University of Messina, Messina, Italy
| | - B Stegman
- Institut für Pharmazie der Universität Regensburg, Regensburg, Germany
| | - W Steimer
- Institute for Clinical Chemistry and Pathobiochemistry, Technical University of Munich, Munich, Germany
| | - J Stingl
- Institute for Clinical Pharmacology, University Hospital of RWTH Aachen, Germany
| | - S Suzen
- Department of Toxicology, Faculty of Pharmacy, Ankara University, Ankara, Turkey
| | - H Uchida
- Department of Neuropsychiatry, Keio University School of Medicine, Shinjuku-ku, Tokyo, Japan
| | - S Unterecker
- Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - F Vandenberghe
- Unit of Pharmacogenetics and Clinical Psychopharmacology, Center for Psychiatric Neurosciences, Lausanne University Hospital and University of Lausanne, Lausanne, Switzerland
| | - C Hiemke
- Department of Psychiatry and Psychotherapy, University Medical Center Mainz, Mainz, Germany
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Richey PM, Laageide L, Swick BL. Stimulant use in patients presenting with psychocutaneous disorders. J Am Acad Dermatol 2021; 86:1002-1009. [PMID: 33878406 DOI: 10.1016/j.jaad.2021.04.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Revised: 04/04/2021] [Accepted: 04/13/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Psychocutaneous disorders are often attributed to stimulant medications, yet this relationship has never been fully elucidated. Literature on psychocutaneous disorders largely focuses on clinical presentation and treatment rather than disease etiology or exacerbation. OBJECTIVE To determine whether patients presenting with psychocutaneous disorders display high rates of stimulant use and psychiatric comorbidity. METHODS We undertook a retrospective cohort study of patients with psychocutaneous disorders presenting to a single center. It was hypothesized that these patients would have high rates of stimulant use and psychiatric comorbidity. Following analysis of baseline demographics, the patients were assigned to 1 of 2 groups: those with a psychotic disorder and those with a neurotic disorder. RESULTS Sixty percent of the patients (n = 317) with psychocutaneous disease had recently used a stimulant and more than 80% (270 of 317) carried an additional psychiatric diagnosis. The neurotic disorder group (n = 237) was younger and had higher rates of stimulant use. The psychotic disorder group (n = 80) had higher rates of psychosis, medical comorbidity, and illicit stimulant drug use. LIMITATIONS The predominantly Caucasian population may limit generalizability of findings as may the retrospective nature. CONCLUSIONS Patients with psychocutaneous disease have high rates of stimulant use and most have at least 1 psychiatric comorbidity.
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Affiliation(s)
- Patricia M Richey
- Department of Dermatology, University of Iowa Hospitals and Clinics, Iowa City, Iowa.
| | - Leah Laageide
- Carver College of Medicine, University of Iowa Hospitals and Clinics, Iowa City, Iowa
| | - Brian L Swick
- Department of Dermatology and Pathology, University of Iowa Hospitals and Clinics, Iowa City, Iowa; Veterans' Affairs Medical Center, Iowa City, Iowa
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Moriya H, Tiger M, Tateno A, Sakayori T, Masuoka T, Kim W, Arakawa R, Okubo Y. Low dopamine transporter binding in the nucleus accumbens in geriatric patients with severe depression. Psychiatry Clin Neurosci 2020; 74:424-430. [PMID: 32363761 DOI: 10.1111/pcn.13020] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 04/26/2020] [Accepted: 04/27/2020] [Indexed: 12/19/2022]
Abstract
AIM Dysfunction of dopaminergic neurons in the central nervous system is considered to be related to major depressive disorder (MDD). Especially, MDD in geriatric patients is characterized by anhedonia, which is assumed to be associated with reduced dopamine neurotransmission in the reward system. Dopamine transporter (DAT) is considered to reflect the function of the dopamine nerve system. However, previous DAT imaging studies using single photon emission computed tomography or positron emission tomography (PET) have shown inconsistent results. The radioligand [18 F]FE-PE2I for PET enables more precise evaluation of DAT availability. Hence, we aimed to evaluate the DAT availability in geriatric patients with MDD using [18 F]FE-PE2I. METHODS Eleven geriatric patients with severe MDD and 27 healthy controls underwent PET with [18 F]FE-PE2I, which has high affinity and selectivity for DAT. Binding potentials (BPND ) in the striatum (caudate and putamen), nucleus accumbens (NAc), and substantia nigra were calculated. BPND values were compared between MDD patients and healthy controls. RESULTS MDD patients showed significantly lower DAT BPND in the NAc (P = 0.009), and there was a trend of lower BPND in the putamen (P = 0.032) compared to controls. CONCLUSION We found low DAT in the NAc and putamen in geriatric patients with severe MDD, which could be related to dysregulation of the reward system.
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Affiliation(s)
- Hiroki Moriya
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Mikael Tiger
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan.,Department of Clinical Neuroscience, Centre for Psychiatry Research, Karolinska Institutet & Stockholm Health Care Services, Stockholm County Council, Stockholm, Sweden
| | - Amane Tateno
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takeshi Sakayori
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Takahiro Masuoka
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - WooChan Kim
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Ryosuke Arakawa
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
| | - Yoshiro Okubo
- Department of Neuropsychiatry, Graduate School of Medicine, Nippon Medical School, Tokyo, Japan
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11
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12
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Tang YQ, Li ZR, Zhang SZ, Mi P, Chen DY, Feng XZ. Venlafaxine plus melatonin ameliorate reserpine-induced depression-like behavior in zebrafish. Neurotoxicol Teratol 2019; 76:106835. [PMID: 31518687 DOI: 10.1016/j.ntt.2019.106835] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/07/2019] [Accepted: 09/09/2019] [Indexed: 12/13/2022]
Abstract
Venlafaxine (VEN) is one of the first clinical drugs for the treatment of depression. Long-term use may cause a potentially life-threatening serotonin syndrome. Melatonin (MT) could ameliorate depression behavior. Therefore, the aim of this study was to investigate the antidepressant effects of venlafaxine in combination with melatonin on zebrafish. Reserpine was used to induce depression-like behavioral zebrafish. To explore the effects of combined use of venlafaxine and melatonin on depression-like zebrafish induced by reserpine. We tested the depressive behavior of adult zebrafish through a novel tank test, and evaluated the levels of serotonin (5-HT), dopamine (DA) and noradrenaline (NA) in zebrafish brain using enzyme-linked immunosorbent assay (ELISA), besides that the gene expression of serotonin transporters a (serta), dopamine transporters (dat) and norepinephrine transporters (net), vesicular monoamine transporter2 (vmat2) and monoamine oxidase (mao) were evaluated by qRT-PCR. The results showed that, compared with reserpine-only group, venlafaxine (VEN, 0.025 mg/L) and melatonin (MT, 1 μM) increased the parameters of exploration in the top of the tank and decreased freezing behavior significantly. Compared with reserpine-only group, the use of VEN combined with MT increased serotonin and norepinephrine levels significantly, while there was no obvious difference in dopamine content. The results of qRT-PCR showed that the use of VEN combined with MT significantly reduced the expression of serta and promoted the expression of vmat2, but had no significant effect on the expression of net, dat and mao. The results indicated that venlafaxine combined with melatonin showed more effective role to remedy the depressive symptoms in zebrafish, providing a reference for the clinical application of antidepressants.
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Affiliation(s)
- Ya-Qiu Tang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Zhuo-Ran Li
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin, 300071, China
| | - Shao-Zhi Zhang
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Ping Mi
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China
| | - Dong-Yan Chen
- Tianjin Key Laboratory of Tumor Microenvironment and Neurovascular Regulation, Department of Histology and Embryology, School of Medicine, Nankai University, Tianjin, 300071, China.
| | - Xi-Zeng Feng
- State Key Laboratory of Medicinal Chemical Biology, The Key Laboratory of Bioactive Materials, Ministry of Education, College of Life Science, Nankai University, Tianjin, 300071, China.
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13
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Schifano F, Chiappini S. Is There a Potential of Misuse for Venlafaxine and Bupropion? Front Pharmacol 2018; 9:239. [PMID: 29618978 PMCID: PMC5871746 DOI: 10.3389/fphar.2018.00239] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2017] [Accepted: 03/05/2018] [Indexed: 12/11/2022] Open
Abstract
Objective: Traditionally, studies on the non-medical use of pharmaceutical products have focused on controlled substances; e.g., opiates/opioids; and benzodiazepines. Although both bupropion and venlafaxine have been reported as being misused, only anecdotal reports have been made available so far. Hence, the European Monitoring Agency (EMA) Adverse Drug Reactions (ADRs), misuse/abuse/dependence and withdrawal, venlafaxine- and bupropion-related, database was here analyzed. Methods: All EMA spontaneous reports relating to venlafaxine (2005–2016) and bupropion (2003–2016) notifications were here analyzed, to provide a descriptive analysis by source, gender, age, and type of report. The UK-based, 2000–2016, Yellow Card Scheme pharmacovigilance database, bupropion and venlafaxine withdrawal reports were compared as well with those pertaining to fluoxetine and paroxetine. Results: Out of 20,720 (bupropion) and 47,516 (venlafaxine) total number of ADRs, some 2,232 (10.8%), and 4,071 (8.5%) misuse/abuse/dependence ADRs were respectively associated with bupropion and venlafaxine. Conversely, bupropion withdrawal-related ADRs were here reported in 299/20,720 (1.44%) cases and in 914/47,516 (1.92%) cases for venlafaxine. Overall, all bupropion and venlafaxine misuse-/abuse-/dependence- and withdrawal-ADRs were related to a respective number of 264 and 447 patients. According to the Proportional Reporting Ratio (PRR) computation, in comparison with venlafaxine bupropion resulted to be more frequently misused/abused (PRR: 1.50), but less frequently associated with both dependence (PRR: 0.92) and withdrawal (PRR: 0.77) issues. Yellow Card Scheme data suggested that paroxetine and venlafaxine, in comparison with fluoxetine and bupropion, were associated with higher number of withdrawal-related reports. Conclusions: The dopaminergic, stimulant-like, bupropion activities may be associated with its possible recreational value. Present data may confirm that the occurrence of a withdrawal syndrome may be a significant issue for venlafaxine-treated patients.
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Affiliation(s)
- Fabrizio Schifano
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
| | - Stefania Chiappini
- Psychopharmacology, Drug Misuse, and Novel Psychoactive Substances Research Unit, School of Life and Medical Sciences, University of Hertfordshire, Hatfield, United Kingdom
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14
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Sramek JJ, Hardy LW, Bieck P, Zamora C, Versavel M, Kharidia J, Grinnell T, Chen YL, Sullivan M, Ding H, Cutler NR. Exploratory Biomarker Study of the Triple Reuptake Inhibitor SEP-432 Compared to the Dual Reuptake Inhibitor Duloxetine in Healthy Normal Subjects. CNS Neurosci Ther 2016; 22:404-12. [PMID: 26849844 DOI: 10.1111/cns.12513] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2015] [Revised: 12/10/2015] [Accepted: 12/11/2015] [Indexed: 01/13/2023] Open
Abstract
INTRODUCTION SEP-432 is a triple monoamine reuptake inhibitor of norepinephrine (NE), serotonin (5-HT), and dopamine (DA), based on in vitro binding studies. We sought evidence that SEP-432 engages these monoamine systems by measuring concentrations of monoamines and/or their main metabolites in cerebrospinal fluid (CSF) and plasma and comparing results to duloxetine, a dual reuptake inhibitor of NE and 5-HT. METHODS Eighteen healthy normal subjects received either SEP-432 (300 mg/day), duloxetine (60 mg/day), or placebo for 14 days in-clinic (double blind) with CSF and plasma collections at baseline (single lumbar puncture) and Day 14 (24-h CSF and plasma collection). Concentrations of monoamines and their metabolites, as well as pharmacokinetic concentrations of SEP-432 and metabolite, were quantified by liquid chromatography-tandem mass spectrometry. RESULTS Compared to placebo in the Day 14 area under the curve 24-h (AUC0-24 h ) analysis, SEP-432 significantly (P < 0.05) decreased the NE metabolite dihydroxyphenylglycol (DHPG) in CSF and plasma, decreased 5-HT in plasma, and did not affect DA metabolites, while duloxetine had significant effects on DHPG and 5-HT. Time-matched baseline to Day 14 biomarker comparisons confirmed these findings. CONCLUSION CSF monoamine biomarkers confirmed central NET activity for SEP-432 and duloxetine's dual reuptake inhibition.
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Affiliation(s)
| | | | - Peter Bieck
- Worldwide Clinical Trials, Beverly Hills, CA, USA
| | - Cynthia Zamora
- Worldwide Clinical Trials, Drug Development Solutions, San Antonio and Austin, TX, USA
| | | | | | | | | | - Michael Sullivan
- Worldwide Clinical Trials, Drug Development Solutions, San Antonio and Austin, TX, USA
| | - Hong Ding
- Worldwide Clinical Trials, Beverly Hills, CA, USA
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15
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Francesconi G, Orsolini L, Papanti D, Corkery JM, Schifano F. Venlafaxine as the 'baby ecstasy'? Literature overview and analysis of web-based misusers' experiences. Hum Psychopharmacol 2015. [PMID: 26216559 DOI: 10.1002/hup.2476] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
INTRODUCTION Venlafaxine is one of the most frequently prescribed antidepressants worldwide, despite its toxicity risk in overdose. Furthermore, the molecule has been recently identified at the EU-wide level as one of the novel psychoactive substances. This paper aims at investigating the potential of misuse, taking into account both the existing literature and the analysis of the misusers' experiences as described in venlafaxine misuse web reports. METHODS A literature search was performed using PubMed, Embase, and Medline. Posts/threads relating to venlafaxine misuse issues were identified through Google® and Yahoo® English-language searches. Resulting websites' data were then qualitatively assessed, and information was collected on a range of issues, including dosage, drug intake modalities, untoward drug effects, and association with other recreational drugs. RESULTS A few literature case reports focusing on venlafaxine as a misusing drug were here identified. The molecule was here typically ingested or snorted at dosages up to 10-15 times higher than those clinically advised, obtaining MDMA/amphetamine-like stimulant and psychedelic effects. Polydrug misuse was commonly reported. Venlafaxine appeared to be widely available online for sale. CONCLUSIONS Physicians should carefully evaluate patients for history of drug dependence and observe them for signs of venlafaxine misuse.
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Affiliation(s)
- Giulia Francesconi
- Academic Department of Experimental and Clinical Medicine, Polytechnic University of Marche, Ancona, Italy.,School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
| | - Laura Orsolini
- Academic Department of Experimental and Clinical Medicine, Polytechnic University of Marche, Ancona, Italy.,School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
| | - Duccio Papanti
- Medical School of Trieste, Italy.,School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
| | - John M Corkery
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
| | - Fabrizio Schifano
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
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16
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Rominger A, Cumming P, Brendel M, Xiong G, Zach C, Karch S, Tatsch K, Bartenstein P, la Fougère C, Koch W, Pogarell O. Altered serotonin and dopamine transporter availabilities in brain of depressed patients upon treatment with escitalopram: A [123 I]β-CIT SPECT study. Eur Neuropsychopharmacol 2015; 25:873-81. [PMID: 25819144 DOI: 10.1016/j.euroneuro.2014.12.010] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/25/2014] [Revised: 11/25/2014] [Accepted: 12/24/2014] [Indexed: 01/13/2023]
Abstract
Altered SERT and DAT availabilities during treatment with escitalopram were investigated with [(123)I]2β-carbomethoxy-3β-(4-iodophenyl)tropane (β-CIT) SPECT in a series of patients fulfilling the criteria for unipolar major depressive disorder (MDD). 27 patients (10m, 42±16y) with diagnosis of MDD were recruited for the study. All patients underwent neuropsychiatric testing for assessment of Hamilton Depression (HAM-D) and Beck Depression Inventory (BDI) scores. At baseline, [(123)I]β-CIT SPECT recordings were acquired 4h (SERT-weighted) and 20-24h p.i (DAT-weighted). Follow-up scans and neuropsychiatric testing were performed after six weeks of stable escitalopram medication. Voxel-wise parametric maps of specific/ non-specific ratios-1 (~BPND) were calculated. At baseline, DAT-weighted BPND was 5.06±0.81 in striatum and SERT-weighted BPND was 0.94±0.18 in thalamus. There were significant negative correlations with age for DAT in striatum (R=-0.60; p<0.01) and SERT in thalamus (R=-0.45; p<0.05). Under SSRI treatment there was an apparent 42% occupancy of SERT in thalamus (p<0.0001), whereas DAT availability increased significantly by 20% in striatum (p<0.001); higher apparent SERT occupancy in thalamus was associated with lesser DAT increase in striatum (R=-0.62; p<0.005). The low apparent SERT occupancy may be confounded by alterations in SERT expression during treatment. Thus, [(123)I]β-CIT SPECT revealed age-dependent declines in DAT and SERT availabilities in un-medicated MDD patients, comparable to that seen previously in healthy controls. At follow-up, the SSRI-evoked increase in DAT was less pronounced in the older patients, even though apparent SERT occupancy and clinical improvement were not age-dependent. Present findings may have implications for escitalopram dosage and side effect profile in younger MDD patients.
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Affiliation(s)
- A Rominger
- Department of Nuclear Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany.
| | - P Cumming
- Department of Psychiatry, University of Oslo, Oslo, Norway
| | - M Brendel
- Department of Nuclear Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - G Xiong
- Department of Nuclear Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - C Zach
- Department of Nuclear Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - S Karch
- Department of Psychiatry, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - K Tatsch
- Department of Nuclear Medicine, Municipal Hospital Karlsruhe Inc., Karlsruhe, Germany
| | - P Bartenstein
- Department of Nuclear Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - C la Fougère
- Department of Nuclear Medicine, University of Tubingen, Tubingen, Germany
| | - W Koch
- Department of Nuclear Medicine, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - O Pogarell
- Department of Psychiatry, Ludwig-Maximilians-University of Munich, Munich, Germany
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17
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Leiser SC, Pehrson AL, Robichaud PJ, Sanchez C. Multimodal antidepressant vortioxetine increases frontal cortical oscillations unlike escitalopram and duloxetine--a quantitative EEG study in rats. Br J Pharmacol 2015; 171:4255-72. [PMID: 24846338 PMCID: PMC4241092 DOI: 10.1111/bph.12782] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Revised: 04/27/2014] [Accepted: 05/03/2014] [Indexed: 12/28/2022] Open
Abstract
Background and Purpose EEG studies show that 5-HT is involved in regulation of sleep–wake state and modulates cortical oscillations. Vortioxetine is a 5-HT3, 5-HT7, and 5-HT1D receptor antagonist, 5-HT1B partial agonist, 5-HT1A agonist, and 5-HT transporter inhibitor. Preclinical (animal) and clinical studies with vortioxetine show positive impact on cognitive metrics involving cortical function. Here we assess vortioxetine's effect on cortical neuronal oscillations in actively awake rats. Experimental Approach Telemetric EEG recordings were obtained with the following treatments (mg·kg−1, s.c.): vehicle, vortioxetine (0.1, 1.0, 3.0, 10), 5-HT1A agonist flesinoxan (2.5), 5-HT3 antagonist ondansetron (0.30), 5-HT7 antagonist SB-269970-A (10), escitalopram (2.0), duloxetine (10) and vortioxetine plus flesinoxan. Target occupancies were determined by ex vivo autoradiography. Key Results Vortioxetine dose-dependently increased wakefulness. Flesinoxan, duloxetine, ondansetron, but not escitalopram or SB-269970-A increased wakefulness. Quantitative spectral analyses showed vortioxetine alone and with flesinoxan increased θ (4–8 Hz), α (8–12 Hz) and γ (30–50 Hz) power. Duloxetine had no effect on θ and γ, but decreased α power, while escitalopram produced no changes. Ondansetron and SB-269970 (≈31–35% occupancy) increased θ power. Flesinoxan (≈41% occupancy) increased θ and γ power. Conclusions and Implications Vortioxetine increased wakefulness and increased frontal cortical activity, most likely because of its 5-HT7 and 5-HT3 antagonism and 5-HT1A agonism. Vortioxetine differs from escitalopram and duloxetine by increasing cortical θ, α and γ oscillations. These preclinical findings suggest a role of vortioxetine in modulating cortical circuits known to be recruited during cognitive behaviours and warrant further investigation as to their clinical impact.
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Affiliation(s)
- S C Leiser
- Department of BioAnalysis & Physiology, Lundbeck Research USA, Inc., Paramus, NJ, USA
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18
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Li Z, He Y, Tang J, Zong X, Hu M, Chen X. Molecular imaging of striatal dopamine transporters in major depression--a meta-analysis. J Affect Disord 2015; 174:137-43. [PMID: 25497470 DOI: 10.1016/j.jad.2014.11.045] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/13/2014] [Revised: 11/20/2014] [Accepted: 11/22/2014] [Indexed: 11/25/2022]
Abstract
BACKGROUND Increasing studies have revealed the dopamine transporter (DAT) availability altered in striatum associated with major depression. However, the results remain inconsistent. METHODS To assess the alteration of striatal DAT availability in major depression, we performed a meta-analysis based on 12 case-control molecular imaging studies, including a total of 209 depressed patients and 314 healthy controls. Hedges׳ g and corresponding 95% confidence intervals (CIs) for striatal DAT availability in major depression compared with controls were estimated. RESULTS Our meta-analysis revealed no evidence for the alteration of striatal DAT availability in major depression (Hedges׳ g=0.09, CI 95% from -0.43 to 0.61, P=0.73). Meta-regression analyses suggested that there were no moderating effects for age, gender, year of publication, sample size, medication exposures and severity of depression on the hedges׳g values for striatal DAT availability. LIMITATIONS The results should be treated with caution because of the significant heterogeneity and the potential interference of confounding factors in this meta-analysis. CONCLUSIONS Our results showed no altered striatal DAT availability in major depression and indicated that striatal DAT may not implicated in the pathophysiology of major depression.
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Affiliation(s)
- Zongchang Li
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Institute of Genomic Medicine, Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Ying He
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Jinsong Tang
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China.
| | - Xiaofen Zong
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Maolin Hu
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Xiaogang Chen
- Institute of Mental Health, the Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Key Laboratory of Psychiatry and Mental Health of Hunan Province, Central South University, Changsha, Hunan, China; The State Key Laboratory of Medical Genetics, Central South University, Changsha, Hunan, China; National Technology of Institute of Psychiatry, Central South University, Changsha, Hunan, China.
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19
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Schifano F, Orsolini L, Duccio Papanti G, Corkery JM. Novel psychoactive substances of interest for psychiatry. World Psychiatry 2015; 14:15-26. [PMID: 25655145 PMCID: PMC4329884 DOI: 10.1002/wps.20174] [Citation(s) in RCA: 236] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Novel psychoactive substances include synthetic cannabinoids, cathinone derivatives, psychedelic phenethylamines, novel stimulants, synthetic opioids, tryptamine derivatives, phencyclidine-like dissociatives, piperazines, GABA-A/B receptor agonists, a range of prescribed medications, psychoactive plants/herbs, and a large series of performance and image enhancing drugs. Users are typically attracted by these substances due to their intense psychoactive effects and likely lack of detection in routine drug screenings. This paper aims at providing psychiatrists with updated knowledge of the clinical pharmacology and psychopathological consequences of the use of these substances. Indeed, these drugs act on a range of neurotransmitter pathways/receptors whose imbalance has been associated with psychopathological conditions, including dopamine, cannabinoid CB1, GABA-A/B, 5-HT2A, glutamate, and k opioid receptors. An overall approach in terms of clinical management is briefly discussed.
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Affiliation(s)
- Fabrizio Schifano
- School of Life and Medical Sciences, University of Hertfordshire, Hatfield, Herts, UK
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20
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Camardese G, Di Giuda D, Di Nicola M, Cocciolillo F, Giordano A, Janiri L, Guglielmo R. Imaging studies on dopamine transporter and depression: a review of literature and suggestions for future research. J Psychiatr Res 2014; 51:7-18. [PMID: 24433847 DOI: 10.1016/j.jpsychires.2013.12.006] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 12/08/2013] [Accepted: 12/16/2013] [Indexed: 10/25/2022]
Abstract
We review the conflicting results from imaging studies of dopamine transporter availability in depressed patients and also discuss the heterogeneity of the variables involved. Major depression includes diverse clinical manifestations and in recent years there has been an increasing interest in the identification of homogeneous phenotypes and different clinical subtypes of depression, e.g. anhedonic depression, retarded depression, etc. In addition, the use of different radioligands and imaging techniques, diverse rating scales, together with the lack of control of clinical variables (clinical course, recent or past use of substances of abuse, etc.) make it difficult to clearly identify neuronal regions or networks with consistently abnormal structures or functions in major depressive disorder. It is probably necessary to build a shared approach between clinicians and researchers in order to identify standardized procedures to better understand the role of the dopamine transporter in depression. We outline a list of major issues and also suggest some standardized procedures in collecting clinical and imaging data on major depressed patients. Our aim is to delineate a possible "modus operandi" that would be a proposal for neuroreceptor studies on major depression.
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Affiliation(s)
- G Camardese
- Institute of Psychiatry, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy.
| | - D Di Giuda
- Institute of Nuclear Medicine, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy
| | - M Di Nicola
- Institute of Psychiatry, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy
| | - F Cocciolillo
- Institute of Nuclear Medicine, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy
| | - A Giordano
- Institute of Nuclear Medicine, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy
| | - L Janiri
- Institute of Psychiatry, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy
| | - R Guglielmo
- Institute of Psychiatry, Catholic University of the Sacred Heart, L.go A. Gemelli, 8, 00168 Rome, Italy
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Batis J, Barret O, Alagille D, Koren AO, Stehouwer JS, Cosgrove K, Goodman M, Seibyl J, Tamagnan G. In vivo evaluation of [¹²³I]mZIENT as a SPECT radioligand for the serotonin transporter. Nucl Med Biol 2013; 39:1137-41. [PMID: 23084043 DOI: 10.1016/j.nucmedbio.2012.07.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2011] [Revised: 06/18/2012] [Accepted: 07/23/2012] [Indexed: 10/27/2022]
Abstract
INTRODUCTION In vivo imaging of the serotonin transporter continues to be a valuable tool in drug development and in monitoring diseases that alter serotonergic function. The purposes of this study were to: 1) evaluate the test/retest reproducibility of [¹²³I] 2β-Carbomethoxy-3β-(3'-((Z)-2-iodoethenyl)phenyl)nortropane ([¹²³I]mZIENT); and 2) to assess displacement of [¹²³I]mZIENT following administration of SERT specific drugs. METHODS Six female baboons (Papio anubis) were scanned following i.v. administration of [¹²³I]mZIENT. The regional binding potential (BP(nd)) was determined using a simplified reference tissue model, with the cerebellum used as a reference region. The test/retest reproducibility of BP(nd) was determined following repeated injection of [¹²³I]mZIENT on a different day. To assess the displacement of [¹²³I]mZIENT from SERT, citalopram (0.01-5mg/kg) or sertraline (0.01-0.5mg/kg) was given as iv bolus at ~4h following administration of [¹²³I]mZIENT. RESULTS The test/retest variability of BP(nd) was less than 10% for all SERT-rich brain regions. Estimates of ED50 for displacement of [¹²³I]mZIENT in SERT-rich regions were consistent with previous reports for the [¹¹C] analog of [¹²³I]mZIENT. Both citalopram and sertraline displaced [¹²³I]mZIENT from SERT in a dose-dependent manner, with maximal observed displacements of greater than 80% in the diencephalon and greater than 75% in brainstem for both citalopram and sertraline. CONCLUSIONS [¹²³I] mZIENT demonstrates good test-retest reproducibility; and initial displacement studies suggest that this compound is highly selective for SERT. Overall, this radioligand has favorable characteristics for use in drug development studies and/or longitudinal studies interrogating SERT.
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Affiliation(s)
- Jeffery Batis
- Institute for Neurodegenerative Disorders, New Haven, CT 06510, USA.
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Amsterdam JD, Newberg AB, Soeller I, Shults J. Greater striatal dopamine transporter density may be associated with major depressive episode. J Affect Disord 2012; 141:425-31. [PMID: 22482744 PMCID: PMC3845357 DOI: 10.1016/j.jad.2012.03.007] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2011] [Revised: 02/22/2012] [Accepted: 03/03/2012] [Indexed: 11/24/2022]
Abstract
BACKGROUND We examined striatal dopamine transporter (DAT) distribution volume ratio (DVR) values in subjects with unipolar or bipolar major depressive episode (versus non-depressed healthy volunteers) using the selective DAT radioligand [(99m)Tc]TRODAT-1 and single photon emission computed tomography (SPECT). We hypothesized that striatal DVR values would be greater in depressed versus non-depressed subjects, and that greater DVR values may represent a possible clinical biomarker of depression. METHODS [(99m)Tc]TRODAT-1 spect images were acquired from 39 depressed and 103 non-depressed drug-free subjects. The primary outcome measure was the DVR value of [(99m)Tc]TRODAT-1 binding for the putamen region and the combined putamen plus caudate region. RESULTS DVR values were significantly correlated across all striatal regions within both subject groups (p<0.005). Depressed subjects had significantly greater DVR values (versus non-depressed subjects) in the putamen (p<0.0005) and the combined putamen plus caudate (p<0.0005) regions. There was no difference in DVR values between unipolar (n=24) and bipolar (n=15) depressed subjects, and no difference in DVR values for depressed subjects with or without prior antidepressant exposure. The predictive probability of the putamen or combined putamen plus caudate DVR value to distinguish depressed from non-depressed subjects was significant (p<0.0005). LIMITATIONS DAT values could potentially be influenced by age, gender, diagnosis, prior psychotropic dug exposure, illness length, or symptom severity. CONCLUSION Results confirm prior observations of greater striatal DAT density in depressed versus non-depressed subjects, and suggest that greater DVR values may possibly represent a potential diagnostic biomarker for distinguish depressed from non-depressed individuals.
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Affiliation(s)
- Jay D Amsterdam
- Depression Research Unit, Department of Psychiatry, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
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Loss of thalamic serotonin transporters in early drug-naïve Parkinson's disease patients is associated with tremor: an [(123)I]beta-CIT SPECT study. J Neural Transm (Vienna) 2008; 115:721-9. [PMID: 18335163 PMCID: PMC2440940 DOI: 10.1007/s00702-007-0015-2] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2007] [Accepted: 12/17/2007] [Indexed: 12/25/2022]
Abstract
In vitro studies revealed serotonin transporter (5-HTT) decline in Parkinson’s disease (PD). Yet, few studies investigated thalamic 5-HTT in vivo and its effect on PD heterogeneity. We analyzed thalamic [123I]β-CIT binding (mainly reflecting 5-HTT binding) in 32 drug-naïve PD patients and 13 controls with SPECT. Twenty-six patients were examined twice (17 months apart). Based on UPDRS scores, we identified subgroups of patients with moderate/severe tremor (PDT) and without tremor (PDWT) at the time of clinical diagnosis. Additionally, depressive symptoms were evaluated using the Beck Depression Inventory (BDI) at baseline. Mean thalamic specific to non-specific [123I]β-CIT binding ratio was lower in patients when compared to controls, and further decreased during follow-up. At baseline, average thalamic ratio was significantly lower in the PDT than in the PDWT subgroup. No correlation was found between BDI scores and thalamic binding ratios. Our findings show decline of [123I]β-CIT binding to thalamic 5-HTT in PD and its possible contribution to tremor onset.
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Dopamine transporter imaging with [123I]FP-CIT SPECT: potential effects of drugs. Eur J Nucl Med Mol Imaging 2007; 35:424-38. [DOI: 10.1007/s00259-007-0621-0] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2007] [Accepted: 09/26/2007] [Indexed: 01/29/2023]
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