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Erdem S, Damlakhy A, Konja K, Bashar S. Altered Mental Status in an Octogenarian: How Frequently Should Serotonin Syndrome Be Considered? Cureus 2024; 16:e57403. [PMID: 38694682 PMCID: PMC11062574 DOI: 10.7759/cureus.57403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/01/2024] [Indexed: 05/04/2024] Open
Abstract
Serotonin toxicity, an adverse consequence of elevated serotonin levels in the brain, poses a considerable threat to life. Antidepressants, frequently prescribed for various conditions in older adults, such as depression, anxiety, and sleep disturbances, significantly contribute to this risk. The elderly are particularly vulnerable due to multiple comorbidities, cognitive decline, medication interactions, polypharmacy, and chronic kidney disease. This case underscores the critical importance of considering serotonin syndrome as a potential diagnosis in patients using serotonin and norepinephrine reuptake inhibitors, especially within vulnerable populations. Here, we present the case of an 89-year-old female who presented with altered mental status and a hypertensive emergency. Following a thorough examination and exclusion of alternative causes of acute encephalopathy, serotonin syndrome induced by the use of venlafaxine and oxycodone was diagnosed.
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Affiliation(s)
- Saliha Erdem
- Internal Medicine, Wayne State University School of Medicine, Detroit, USA
| | - Ahmad Damlakhy
- Internal Medicine, Detroit Medical Center, Sinai Grace Hospital, Wayne State University, Detroit, USA
| | - Kristin Konja
- Internal Medicine, Detroit Medical Center, Michigan State University, Detroit, USA
| | - Sifullah Bashar
- Internal Medicine, Detroit Medical Center, Sinai Grace Hospital, Wayne State University, Detroit, USA
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2
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Mansuri Z, Adnan M, Shah B, Trivedi C, Vadukapuram R, Patel S, Yadav G, Srinivas S, Ansari M, Makani R, Baweja R, Reddy A. Serotonin Syndrome With the Concomitant Use of Triptans and SSRIs/Serotonergic Medications: Is It Time to Revisit FDA Warning? J Clin Psychopharmacol 2024; 44:199-200. [PMID: 38227629 DOI: 10.1097/jcp.0000000000001812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2024]
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3
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Wells A, Muthukumaraswamy APS, Morunga E, Evans W, Cavadino A, Bansal M, Lawrence NJ, Ashley A, Hoeh NR, Sundram F, Applebaum AJ, Parkinson H, Reynolds L. PAM trial protocol: a randomised feasibility study of psychedelic microdosing-assisted meaning-centred psychotherapy in advanced stage cancer patients. Pilot Feasibility Stud 2024; 10:29. [PMID: 38347582 PMCID: PMC10860284 DOI: 10.1186/s40814-024-01449-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 01/12/2024] [Indexed: 02/15/2024] Open
Abstract
BACKGROUND An advanced cancer diagnosis can be associated with a significant profile of distress. Psychedelic compounds have shown clinically significant effects in the treatment of psychological distress in patients with advanced-stage cancer. Given the challenges of delivering timely and effective intervention in the advanced cancer context, it is possible that an alternative, more pragmatic, approach lies in psychedelic 'microdosing'. Microdosing refers to repeated administration of psychedelics in sub-hallucinogenic doses. The purpose of this study is to evaluate the feasibility of conducting a full-scale randomised controlled trial comparing psychedelic microdose-assisted-meaning-centred psychotherapy (PA-MCP) to standard meaning-centred psychotherapy (MCP) in New Zealand indigenous (Māori) and non-indigenous people with advanced cancer and symptoms of anxiety and/or depression. Although MCP is a well-established psychotherapeutic treatment in advanced cancer populations, the potential efficacy and effectiveness of this therapy when delivered alongside a standardised microdose regimen of a psychedelic compound have not been investigated. METHODS Participants with advanced-stage cancer and symptoms of anxiety and/or depression (N = 40; 20 Māori, 20 non-Māori) will be randomised under double-blind conditions to receive 7 sessions of MCP alongside 13 doses of either an LSD microdose (4-20 µg) (PA-MCP) or inactive placebo (placebo-MCP). The feasibility, acceptability, and safety of this intervention and physiological and psychological measures will be recorded at baseline, at each session of MCP, and at a 1-month and 6-month follow-up. DISCUSSION Our findings will evaluate the feasibility, acceptability, and safety of a larger randomised controlled trial and provide an initial indication of the potential benefits of psychedelic microdosing for psychological distress in advanced-stage indigenous and non-indigenous cancer patients. TRIAL REGISTRATION NZCTR, ACTRN12623000478617. Registered 11 May 2023. https://www.anzctr.org.au/Trial/Registration/TrialReview.aspx?id=385810&isReview=true .
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Affiliation(s)
- Alesha Wells
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand.
| | - A P Suresh Muthukumaraswamy
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, 85 Park Road, Grafton, Auckland, 1023, New Zealand
| | - Eva Morunga
- Cancer Support Service, Te Toka Tumai Auckland, Auckland City Hospital, Te Whatu Ora2 Park Road, Grafton, Auckland, 1023, New Zealand
- The University of Auckland, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand
| | - Will Evans
- Mana Health, 7 Ruskin Street, Parnell, Auckland, 1052, New Zealand
| | - Alana Cavadino
- School of Population Health, The University of Auckland, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand
| | - Mahima Bansal
- School of Pharmacy, Faculty of Medical and Health Sciences, University of Auckland, 85 Park Road, Grafton, Auckland, 1023, New Zealand
| | - Nicola J Lawrence
- Department of Oncology, Faculty of Medical and Health Sciences, University of Auckland, 85 Park Road, Grafton, Auckland, New Zealand
- Te Pūriri o Te Ora - Regional Cancer and Blood, Te Whatu Ora Te Toka Tumai, 2 Park Road, Grafton, Auckland, 1023, New Zealand
| | - Amanda Ashley
- Te Pūriri o Te Ora - Regional Cancer and Blood, Te Whatu Ora Te Toka Tumai, 2 Park Road, Grafton, Auckland, 1023, New Zealand
- Harbour Cancer and Wellness, 212 Wairau Road, Wairau Valley, Auckland, 0627, New Zealand
| | - Nicholas R Hoeh
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand
| | - Frederick Sundram
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand
| | - Allison J Applebaum
- Department of Psychiatry and Behavioral Sciences, Memorial Sloan Kettering Cancer Center, 641 Lexington Avenue, 7th Floor, New York, NY, 10022, USA
| | - Hineatua Parkinson
- School of Psychology, University of Auckland, 23 Symonds Street, Auckland Central, 1010, New Zealand
| | - Lisa Reynolds
- Department of Psychological Medicine, Faculty of Medical and Health Sciences, University of Auckland, 22-30 Park Avenue, Grafton, Auckland, 1023, New Zealand
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4
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Elli C, Novella A, Pasina L. Serotonin syndrome: A pharmacovigilance comparative study of drugs affecting serotonin levels. Eur J Clin Pharmacol 2024; 80:231-237. [PMID: 38032391 DOI: 10.1007/s00228-023-03596-z] [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: 07/27/2023] [Accepted: 11/16/2023] [Indexed: 12/01/2023]
Abstract
BACKGROUND Serotonin syndrome is a rare and potentially fatal adverse drug reaction caused by serotonergic drugs and is due to an increase in serotonin concentration or activation of the 5-HT receptor in the central nervous system. We analysed adverse events in the US Food and Drug Administration (FDA) Adverse Event Reporting System (FAERS) data set to investigate the main drug classes related to reports of serotonin syndrome and the reporting risk in relation to age and sex. METHODS We analysed data from the FAERS database to evaluate the main drug classes related to reports of the serotonin syndrome, and the reporting risk in relation to age and sex. RESULTS We found 8,997 cases of serotonin syndrome; selective serotonin reuptake inhibitors (SSRIs) was the class of drugs with most reports, followed by opioids and other antidepressants. The highest Reporting Odds Ratios (ROR) for drug classes was for monoamine oxidase (MAO) inhibitors (45.99, 95% confidence interval (CI): 41.21-51.33) and SSRIs (32.66, 95% CI: 31.33-34.04), while the ten active substances with the highest ROR were moclobemide, isocarboxazid, oxitriptane, tranylcypromine, melitracen, phenelzine, linezolid, amoxapine, reboxetine and tryptophan; with values of ROR ranging from 44.19 (95% CI: 25.38-76.94) of tryptophan to 388.36 (95% CI: 314.58-479.46) of moclobemide. The ROR for the most commonly involved drugs was higher in the group of older adults (65 > years old), and higher in males. CONCLUSION Prescribers need to be vigilant about drugs that can raise serotonin concentration or influence serotonergic neurotransmission, also when using drugs with less well-known risk for serotonin syndrome, like linezolid and triptans.
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Affiliation(s)
- Chiara Elli
- Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Milan, Italy.
- Laboratory of Clinical Pharmacology and Appropriateness of Drug Prescription, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, Milano, 20156, Italy.
| | - Alessio Novella
- Laboratory of Clinical Pharmacology and Appropriateness of Drug Prescription, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, Milano, 20156, Italy
| | - Luca Pasina
- Laboratory of Clinical Pharmacology and Appropriateness of Drug Prescription, Istituto di Ricerche Farmacologiche Mario Negri IRCCS, Via Mario Negri 2, Milano, 20156, Italy
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5
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Badar A. Serotonin syndrome: An often-neglected medical emergency. J Family Community Med 2024; 31:1-8. [PMID: 38406216 PMCID: PMC10883429 DOI: 10.4103/jfcm.jfcm_236_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 11/24/2023] [Accepted: 12/06/2023] [Indexed: 02/27/2024] Open
Abstract
Optimum serotonin level in the serotonergic synapses of the central nervous system (CNS) is related to mood, behavior, and sleep. Serotonin syndrome (SS) is a rare yet very dangerous adverse effect resulting from increased serotonin in CNS. The diagnosis of SS is based on the presence of clinical symptoms, which can include agitation, confusion, rapid heart rate, high blood pressure, dilated pupils, muscle rigidity, tremors, sweating, and diarrhea. SS is invariably caused by inadvertent use of serotonergic medicines. There is an ever-growing list of medicines that are associated with the risk of SS. Some of the common classes of drugs that can contribute to the development of SS include selective serotonin reuptake inhibitors, serotonin-norepinephrine reuptake inhibitors, monoamine oxidase inhibitors, tricyclic antidepressants, stimulants (e.g., amphetamines and cocaine), lithium, opioids, drugs used for recreational purposes like ecstasy Methylenedioxymethamphetamine (MDMA), and some herbal supplements (e.g., St. John's Wort). SS can occur when these medications are taken alone or in combination, especially when a new medication is added, or the dose of an existing medication is changed. The management of SS typically involves discontinuing the use of the substance that caused the excess serotonin levels and providing supportive care, such as intravenous fluids and electrolytes. In severe cases, benzodiazepines may be used to control agitation and muscle rigidity, while serotonin antagonists, such as cyproheptadine, may be used to reduce serotonin levels. The literature review points to a general unawareness among physicians about the condition or drugs associated with it. Consequently, this potentially fatal condition is overlooked. There is a need for regular information updates and reminders to all those who prescribe medications to the patients.
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Affiliation(s)
- Ahmed Badar
- Department of Physiology, College of Medicine, Imam Abdulrahman Bin Faisal University, Dammam, Saudi Arabia
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6
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Cortel-LeBlanc MA, Orr SL, Dunn M, James D, Cortel-LeBlanc A. Managing and Preventing Migraine in the Emergency Department: A Review. Ann Emerg Med 2023; 82:732-751. [PMID: 37436346 DOI: 10.1016/j.annemergmed.2023.05.024] [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: 03/07/2023] [Revised: 05/24/2023] [Accepted: 05/25/2023] [Indexed: 07/13/2023]
Abstract
Migraine is a leading cause of disability worldwide, and acute migraine attacks are a common reason for patients to seek care in the emergency department (ED). There have been recent advancements in the care of patients with migraine, specifically emerging evidence for nerve blocks and new pharmacological classes of medications like gepants and ditans. This article serves as a comprehensive review of migraine in the ED, including diagnosis and management of acute complications of migraine (eg, status migrainosus, migrainous infarct, persistent aura without infarction, and aura-triggered seizure) and use of evidence-based migraine-specific treatments in the ED. It highlights the role of migraine preventive medications and provides a framework for emergency physicians to prescribe them to eligible patients. Finally, it evaluates the evidence for nerve blocks in the treatment of migraine and introduces the possible role of gepants and ditans in the care of patients with migraine in the ED.
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Affiliation(s)
- Miguel A Cortel-LeBlanc
- Department of Emergency Medicine, Queensway Carleton Hospital, Ottawa, ON, Canada; Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; Institut du Savoir Montfort, Ottawa, ON, Canada; 360 Concussion Care, Ottawa, ON, Canada.
| | - Serena L Orr
- Departments of Pediatrics, Community Health Sciences, and Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada; Alberta Children's Hospital Research Institute, University of Calgary, Calgary, AB, Canada
| | - Maeghan Dunn
- Department of Emergency Medicine, Queensway Carleton Hospital, Ottawa, ON, Canada
| | - Daniel James
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; Department of Emergency Medicine, The Ottawa Hospital, Ottawa, ON, Canada; Department of Anesthesiology and Pain Medicine, The Ottawa Hospital, Ottawa, ON, Canada
| | - Achelle Cortel-LeBlanc
- Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada; Institut du Savoir Montfort, Ottawa, ON, Canada; 360 Concussion Care, Ottawa, ON, Canada; Division of Neurology, Department of Medicine, Queensway Carleton Hospital, Ottawa, ON, Canada
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7
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Phylogenetic analyses of 5-hydroxytryptamine 3 (5-HT3) receptors in Metazoa. PLoS One 2023; 18:e0281507. [PMID: 36857360 PMCID: PMC9977066 DOI: 10.1371/journal.pone.0281507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 01/24/2023] [Indexed: 03/02/2023] Open
Abstract
The 5-hydroxytrptamine 3 (5-HT3) receptor is a member of the 'Cys-loop' family and the only pentameric ligand gated ion channel among the serotonin receptors. 5-HT3 receptors play an important role in controlling growth, development, and behaviour in animals. Several 5-HT3 receptor antagonists are used to treat diseases (e.g., irritable bowel syndrome, nausea and emesis). Humans express five different subunits (A-E) enabling a variety of heteromeric receptors to form but all contain 5HT3A subunits. However, the information available about the 5-HT3 receptor subunit occurrence among the metazoan lineages is minimal. In the present article we searched for 5-HT3 receptor subunit homologs from different phyla in Metazoa. We identified more than 1000 5-HT3 receptor subunits in Metazoa in different phyla and undertook simultaneous phylogenetic analysis of 526 5HT3A, 358 5HT3B, 239 5HT3C, 70 5HT3D, and 173 5HT3E sequences. 5-HT3 receptor subunits were present in species belonging to 11 phyla: Annelida, Arthropoda, Chordata, Cnidaria, Echinodermata, Mollusca, Nematoda, Orthonectida, Platyhelminthes, Rotifera and Tardigrada. All subunits were most often identified in Chordata phylum which was strongly represented in searches. Using multiple sequence alignment, we investigated variations in the ligand binding region of the 5HT3A subunit protein sequences in the metazoan lineage. Several critical amino acid residues important for ligand binding (common structural features) are commonly present in species from Nematoda and Platyhelminth gut parasites through to Chordata. Collectively, this better understanding of the 5-HT3 receptor evolutionary patterns raises possibilities of future pharmacological challenges facing Metazoa including effects on parasitic and other species in ecosystems that contain 5-HT3 receptor ligands.
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8
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Konus M, Çetin D, Kızılkan ND, Yılmaz C, Fidan C, Algso M, Kavak E, Kivrak A, Kurt-Kızıldoğan A, Otur Ç, Mutlu D, Abdelsalam AH, Arslan S. Synthesis and biological activity of new indole based derivatives as potent anticancer, antioxidant and antimicrobial agents. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.133168] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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9
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Aslanoglou D, Bertera S, Friggeri L, Sánchez-Soto M, Lee J, Xue X, Logan RW, Lane JR, Yechoor VK, McCormick PJ, Meiler J, Free RB, Sibley DR, Bottino R, Freyberg Z. Dual pancreatic adrenergic and dopaminergic signaling as a therapeutic target of bromocriptine. iScience 2022; 25:104771. [PMID: 35982797 PMCID: PMC9379584 DOI: 10.1016/j.isci.2022.104771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2021] [Revised: 06/10/2022] [Accepted: 07/11/2022] [Indexed: 11/23/2022] Open
Abstract
Bromocriptine is approved as a diabetes therapy, yet its therapeutic mechanisms remain unclear. Though bromocriptine's actions have been mainly attributed to the stimulation of brain dopamine D2 receptors (D2R), bromocriptine also targets the pancreas. Here, we employ bromocriptine as a tool to elucidate the roles of catecholamine signaling in regulating pancreatic hormone secretion. In β-cells, bromocriptine acts on D2R and α2A-adrenergic receptor (α2A-AR) to reduce glucose-stimulated insulin secretion (GSIS). Moreover, in α-cells, bromocriptine acts via D2R to reduce glucagon secretion. α2A-AR activation by bromocriptine recruits an ensemble of G proteins with no β-arrestin2 recruitment. In contrast, D2R recruits G proteins and β-arrestin2 upon bromocriptine stimulation, demonstrating receptor-specific signaling. Docking studies reveal distinct bromocriptine binding to α2A-AR versus D2R, providing a structural basis for bromocriptine's dual actions on β-cell α2A-AR and D2R. Together, joint dopaminergic and adrenergic receptor actions on α-cell and β-cell hormone release provide a new therapeutic mechanism to improve dysglycemia.
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Affiliation(s)
- Despoina Aslanoglou
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
| | - Suzanne Bertera
- Institute of Cellular Therapeutics, Allegheny Health Network Research Institute, Allegheny Health Network, Pittsburgh, PA, USA
| | - Laura Friggeri
- Department of Chemistry, Center for Structural Biology, Vanderbilt University, Nashville, TN, USA
| | - Marta Sánchez-Soto
- Molecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Jeongkyung Lee
- Diabetes and Beta Cell Biology Center, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Xiangning Xue
- Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ryan W. Logan
- Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, MA, USA
| | - J. Robert Lane
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen’s Medical Centre, University of Nottingham, Nottingham, UK
- Centre of Membrane Protein and Receptors, Universities of Birmingham and Nottingham, Nottingham, UK
| | - Vijay K. Yechoor
- Diabetes and Beta Cell Biology Center, Division of Endocrinology, Diabetes and Metabolism, Department of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Peter J. McCormick
- Centre for Endocrinology, William Harvey Research Institute, Bart’s and the London School of Medicine and Dentistry, Queen Mary, University of London, London, UK
| | - Jens Meiler
- Department of Chemistry, Center for Structural Biology, Vanderbilt University, Nashville, TN, USA
- Institute for Drug Discovery, Leipzig University Medical School, Leipzig, Germany
| | - R. Benjamin Free
- Molecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - David R. Sibley
- Molecular Neuropharmacology Section, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD, USA
| | - Rita Bottino
- Institute of Cellular Therapeutics, Allegheny Health Network Research Institute, Allegheny Health Network, Pittsburgh, PA, USA
- Imagine Pharma, Pittsburgh, PA, USA
| | - Zachary Freyberg
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA, USA
- Department of Cell Biology, University of Pittsburgh, PA, USA
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10
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Van den Eynde V, Abdelmoemin WR, Abraham MM, Amsterdam JD, Anderson IM, Andrade C, Baker GB, Beekman ATF, Berk M, Birkenhäger TK, Blackwell BB, Blier P, Blom MBJ, Bodkin AJ, Cattaneo CI, Dantz B, Davidson J, Dunlop BW, Estévez RF, Feinberg SS, Finberg JPM, Fochtmann LJ, Gotlib D, Holt A, Insel TR, Larsen JK, Mago R, Menkes DB, Meyer JM, Nutt DJ, Parker G, Rego MD, Richelson E, Ruhé HG, Sáiz-Ruiz J, Stahl SM, Steele T, Thase ME, Ulrich S, van Balkom AJLM, Vieta E, Whyte I, Young AH, Gillman PK. The prescriber's guide to classic MAO inhibitors (phenelzine, tranylcypromine, isocarboxazid) for treatment-resistant depression. CNS Spectr 2022; 28:1-14. [PMID: 35837681 DOI: 10.1017/s1092852922000906] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
This article is a clinical guide which discusses the "state-of-the-art" usage of the classic monoamine oxidase inhibitor (MAOI) antidepressants (phenelzine, tranylcypromine, and isocarboxazid) in modern psychiatric practice. The guide is for all clinicians, including those who may not be experienced MAOI prescribers. It discusses indications, drug-drug interactions, side-effect management, and the safety of various augmentation strategies. There is a clear and broad consensus (more than 70 international expert endorsers), based on 6 decades of experience, for the recommendations herein exposited. They are based on empirical evidence and expert opinion-this guide is presented as a new specialist-consensus standard. The guide provides practical clinical advice, and is the basis for the rational use of these drugs, particularly because it improves and updates knowledge, and corrects the various misconceptions that have hitherto been prominent in the literature, partly due to insufficient knowledge of pharmacology. The guide suggests that MAOIs should always be considered in cases of treatment-resistant depression (including those melancholic in nature), and prior to electroconvulsive therapy-while taking into account of patient preference. In selected cases, they may be considered earlier in the treatment algorithm than has previously been customary, and should not be regarded as drugs of last resort; they may prove decisively effective when many other treatments have failed. The guide clarifies key points on the concomitant use of incorrectly proscribed drugs such as methylphenidate and some tricyclic antidepressants. It also illustrates the straightforward "bridging" methods that may be used to transition simply and safely from other antidepressants to MAOIs.
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Affiliation(s)
| | | | | | - Jay D Amsterdam
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Ian M Anderson
- Department of Psychiatry, University of Manchester, Manchester, UK
| | - Chittaranjan Andrade
- Department of Psychopharmacology, National Institute of Mental Health and Neurosciences, Bangalore, India
| | - Glen B Baker
- Department of Psychiatry, University of Alberta, Edmonton, AB, Canada
| | - Aartjan T F Beekman
- Department of Psychiatry, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Michael Berk
- Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC, Australia
| | - Tom K Birkenhäger
- Department of Psychiatry, Erasmus Medical Center, Rotterdam, The Netherlands
| | - Barry B Blackwell
- Department of Psychiatry, University of Wisconsin, Milwaukee, WI, USA
| | - Pierre Blier
- Departments of Psychiatry and Cellular & Molecular Medicine, University of Ottawa, Ottawa, ON, Canada
| | | | | | | | - Bezalel Dantz
- Department of Psychiatry and Behavioral Sciences, Rush Medical College, Chicago, IL, USA
| | - Jonathan Davidson
- Department of Psychiatry and Behavioral Sciences, Duke University, Durham, NC, USA
| | - Boadie W Dunlop
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, USA
| | - Ryan F Estévez
- College of Medicine, University of Central Florida, Orlando, FL, USA
| | - Shalom S Feinberg
- Department of Psychiatry and Behavioral Sciences, Albert Einstein College of Medicine, New York, NY, USA
| | - John P M Finberg
- Department of Molecular Pharmacology, Technion-Israel Institute of Technology, Haifa, Israel
| | - Laura J Fochtmann
- Department of Psychiatry, Department of Pharmacological Sciences, and Biomedical Informatics, Stony Brook University Renaissance School of Medicine, Stony Brook, NY, USA
| | | | - Andrew Holt
- Department of Psychiatry, University of Alberta, Edmonton, AB, Canada
| | - Thomas R Insel
- Department of Psychiatry and Behavioral Sciences, Stanford University School of Medicine, Palo Alto, CA, USA
| | - Jens K Larsen
- Department of Affective Disorders, Aarhus University Hospital, Aarhus, Denmark
| | - Rajnish Mago
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - David B Menkes
- Faculty of Medical and Health Sciences, University of Auckland, Auckland, New Zealand
| | - Jonathan M Meyer
- Department of Psychiatry, UC San Diego School of Medicine, San Diego, CA, USA
| | - David J Nutt
- Department of Brain Sciences, Imperial College, London, UK
| | - Gordon Parker
- Discipline of Psychiatry and Mental Health, University of New South Wales, Sydney, NSW, Australia
| | - Mark D Rego
- Yale Institute for Global Health, Yale School of Medicine, New Haven, CT, USA
| | - Elliott Richelson
- Department of Psychiatry and Psychology, Mayo Clinic, Jacksonville, FL, USA
| | - Henricus G Ruhé
- Department of Psychiatry, Radboud University Medical Center, Nijmegen, The Netherlands
| | | | - Stephen M Stahl
- Department of Psychiatry and Neuroscience, University of California, Riverside, Riverside, CA, USA
| | - Thomas Steele
- Department of Psychiatry and Behavioral Sciences, University of South Carolina, Columbia, SC, USA
| | - Michael E Thase
- Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | | | - Anton J L M van Balkom
- Department of Psychiatry, Amsterdam University Medical Center, Amsterdam, The Netherlands
| | - Eduard Vieta
- Department of Psychiatry and Psychology, University of Barcelona Hospital Clinic, Barcelona, Spain
| | - Ian Whyte
- Department of Clinical Toxicology and Pharmacology, University of Newcastle, Callaghan, NSW, Australia
| | - Allan H Young
- Department of Psychological Medicine, King's College London, London, UK
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11
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Abstract
The serotonin syndrome is a life-threatening adverse drug reaction resulting from excess serotonergic agonism due to interactions between multiple drugs, poisoning, or less commonly due to therapeutic action of a single drug. The central triad of features in serotonin syndrome are altered mental state, autonomic hyperactivity, and neuromuscular abnormalities in the context of a patient with new/altered serotonergic therapy, although not all these features are consistently present in all patients. The severity of serotonin syndrome can be assessed clinically based on the number and severity of features. Severe serotonin syndrome warrants more careful management on a high-dependency unit. In case of temperature exceeding 38.5°C, urgent cooling measures and sedation should be employed, progressing to rapid sequence intubation and paralysis if cooling measures are ineffective.
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Affiliation(s)
- Stuart Maitland
- Clinical and Translational Research Institute, Newcastle University, Newcastle upon Tyne, UK
| | - Mark Baker
- Institute of Neuroscience, Newcastle University, Newcastle upon Tyne, UK
- Department of Clinical Neurosciences, Royal Victoria Infirmary, Newcastle upon Tyne, UK
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12
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Abstract
RATIONALE In recent years, psychedelic substances with serotonergic mechanisms have accumulated substantial evidence that they may provide therapeutic benefits for people suffering with psychiatric symptoms. Psychiatric disorders targeted by these psychedelic-assisted therapies are managed with serotonergic drugs like selective serotonin reuptake inhibitors (SSRIs) as the current standard of care, so it is important to evaluate the potential risks of drug-drug interactions and serotonin toxicity (ST) between these agents. OBJECTIVES A critical evaluation of the scientific literature is necessary to delineate the risks of ST when combining psychedelics with available serotonergic pharmacotherapy options. This review article describes signs and symptoms of ST, characterizes mechanisms of ST risk, summarizes what is known about serotonergic psychedelic drug interactions, and outlines potential management strategies. RESULTS True ST typically occurs with a serotonergic drug overdose or in combinations in which a drug that can increase intrasynaptic serotonin is combined with a monoamine oxidase inhibitor (MAOI). Serotonergic psychotropics that do not contain MAOIs are low risk in combination with psychedelics that also do not contain MAOIs. Signs and symptoms warranting immediate medical attention include myoclonus, extreme and fluctuating vital signs, agitation or comatose mental state, muscle rigidity, pronounced hyperthermia (fever), and/or seizure activity. CONCLUSIONS Serotonin-related adverse reactions exist along a spectrum with serotonin syndrome being the most severe manifestations of ST. Due to varying serotonergic mechanisms of psychedelics and psychotropics, with varying propensities to increase intrasynaptic serotonin, some combinations may present a significant risk for serotonin toxicity (ST) while others are likely benign.
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13
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Orlova YY, Mehla S, Chua AL. Drug Safety in Episodic Migraine Management in Adults Part 1: Acute Treatments. Curr Pain Headache Rep 2022; 26:481-492. [PMID: 35536501 DOI: 10.1007/s11916-022-01057-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2022] [Indexed: 12/17/2022]
Abstract
PURPOSE OF REVIEW The aim of this review is to aid in choosing safe options when assessing potential risks of acute migraine treatments based on known mechanisms of action and anticipated safety concerns. RECENT FINDINGS Part 1 highlights safety issues associated with commonly used medications to treat acute migraine attacks. Strategies to mitigate cardiovascular and gastrointestinal risks of nonsteroidal anti-inflammatory drugs, evaluation of cardiovascular risks of triptan and ergot alkaloids, and precautions with use of antiemetics and the novel drugs gepants and ditans are discussed to help practitioners in clinical decision-making. When available, we included recommendations from professional societies and data from pharmacovigilance systems. While guidelines on efficacy are available, one must also consider the possible risks and adverse effects of a drug when creating treatment plans.
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Affiliation(s)
- Yulia Y Orlova
- University of Florida, 1149 Newell Dr., L3-100, Gainesville, 32611, USA.
| | - Sandhya Mehla
- Ayer Neurosciences Institute, Hartford Health Care Medical Group, University of Connecticut School of Medicine, Norwich, CT, USA
| | - Abigail L Chua
- Geisinger Health Systems, 1000 E. Mountain Boulevard, Wilkes-Barre, PA, 18702, USA
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14
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Schlag AK, Aday J, Salam I, Neill JC, Nutt DJ. Adverse effects of psychedelics: From anecdotes and misinformation to systematic science. J Psychopharmacol 2022; 36:258-272. [PMID: 35107059 PMCID: PMC8905125 DOI: 10.1177/02698811211069100] [Citation(s) in RCA: 68] [Impact Index Per Article: 34.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
BACKGROUND Despite an increasing body of research highlighting their efficacy to treat a broad range of medical conditions, psychedelic drugs remain a controversial issue among the public and politicians, tainted by previous stigmatisation and perceptions of risk and danger. OBJECTIVE This narrative review examines the evidence for potential harms of the classic psychedelics by separating anecdotes and misinformation from systematic research. METHODS Taking a high-level perspective, we address both psychological and psychiatric risks, such as abuse liability and potential for dependence, as well as medical harms, including toxicity and overdose. We explore the evidence base for these adverse effects to elucidate which of these harms are based largely on anecdotes versus those that stand up to current scientific scrutiny. RESULTS Our review shows that medical risks are often minimal, and that many - albeit not all - of the persistent negative perceptions of psychological risks are unsupported by the currently available scientific evidence, with the majority of reported adverse effects not being observed in a regulated and/or medical context. CONCLUSIONS This highlights the importance for clinicians and therapists to keep to the highest safety and ethical standards. It is imperative not to be overzealous and to ensure balanced media reporting to avoid future controversies, so that much needed research can continue.
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Affiliation(s)
- Anne K Schlag
- Drug Science, London, UK,Department of Brain Sciences, Imperial College London, London, UK,Department of Geography, King’s College London, London, UK
| | - Jacob Aday
- Drug Science, London, UK,Department of Psychology, Central Michigan University, Mount Pleasant, MI, USA,Department of Psychiatry and Behavioral Sciences, University of California, Davis, Sacramento, CA, USA
| | | | - Jo C Neill
- Drug Science, London, UK,Division of Pharmacy and Optometry, School of Health Sciences, The University of Manchester, Manchester, UK
| | - David J Nutt
- Drug Science, London, UK,Department of Brain Sciences, Imperial College London, London, UK,David J Nutt, Department of Brain Sciences, Imperial College London, Burlington Danes Building, The Hammersmith Hospital, London W12 0NN, UK.
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15
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Ohta R, Sano C. Serotonin Syndrome Triggered by Overuse of Caffeine and Complicated With Neuroleptic Malignant Syndrome: A Case Report. Cureus 2022; 14:e22468. [PMID: 35345760 PMCID: PMC8942071 DOI: 10.7759/cureus.22468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/20/2022] [Indexed: 01/08/2023] Open
Abstract
Serotonin syndrome is a rare complication occurring in patients with psychiatric disorders that are treated with selective serotonin reuptake inhibitors (SSRIs). There are various triggers for serotonin syndrome, including non-SSRI antidepressants. In rare cases, serotonin syndrome may be triggered by nonmedicinal foods, such as coffee. The patient described in this case report was a 65-year-old woman with a past medical history of major depression and a diagnosis of Parkinson’s disease who presented to our medical center with chief complaints of nausea, vomiting, and drowsiness. She had previously been prescribed paroxetine hydrochloride hydrate for depression, and she was prescribed levodopa and carbidopa for Parkinson’s disease. She also drank 20 cups of coffee in a short period of time two days prior to admission due to excessive sleepiness. She was diagnosed with serotonin syndrome based on her clinical symptomology, which included diaphoresis, mydriasis, fine tremor, myoclonus, hypertension, and tachycardia. She was treated with diazepam and cyproheptadine hydrochloride hydrate. Later, she experienced muscle pain with increased creatinine kinase levels after she failed to take levodopa and carbidopa. These findings were suggestive of neuroleptic malignant syndrome. The patient was treated with supportive care. Excessive coffee intake triggers serotonin syndrome by promoting 5-hydroxytryptamine (serotonin) secretion. Patients with psychiatric diseases that necessitate treatment with SSRIs should be educated regarding caffeine consumption. Moreover, patients presenting with agitation and drowsiness should be evaluated for serotonin syndrome within the differential diagnosis. Patients with depression and Parkinson’s syndrome should be evaluated for associated comorbidities, particularly serotonin syndrome and neuroleptic malignant syndrome.
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16
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Meng Y, Yuen J. Onset of Transient Sadness Following the Concomitant Use of a Triptan and Selective Serotonin Reuptake Inhibitor/Serotonin Norepinephrine Reuptake Inhibitors Therapy: A Case Report. J Pharm Pract 2021; 36:705-710. [PMID: 34962845 DOI: 10.1177/08971900211064444] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Background: Migraine and depression have a bi-directional, positive association. The likelihood of these conditions being comorbidities is high, thus, the possibility of concomitant use of an antidepressant and a triptan is also increased. Case Presentation: We present a case of a 39-year-old female with a history of migraine with aura and depression who had brief episodes of exacerbated depressive symptoms following oral administration of sumatriptan 100 mg daily as needed while taking various selective serotonin reuptake inhibitor (SSRI) and serotonin and norepinephrine reuptake inhibitor (SNRI) medications on different occasions. The patient experienced 30-minute episodes of sweating and subjective increase in temperature approximately 2-3 hours after administration of sumatriptan 100 mg. This was followed by a transient exacerbation of sadness described by the patient as unhappiness, hopelessness, and tearfulness, which lasted 1 to 2 hours. To date, there are no other published case reports that have described this particular presentation. Several studies have reported possible serotonin syndrome as a result of the combination. Current evidence and known pharmacological actions of SSRIs/SNRIs and triptans are not well-defined enough to explain how one can experience episodic worsening depression. Conclusion: This case illustrates that clinicians should consider other potential adverse effects of the combined use of triptans and SSRIs/SNRIs beyond serotonin syndrome.
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Affiliation(s)
- Yuki Meng
- Faculty of Pharmaceutical Sciences, 63650The University of British Columbia, Vancouver, BC, Canada
| | - Jamie Yuen
- Faculty of Pharmaceutical Sciences, 63650The University of British Columbia, Vancouver, BC, Canada
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17
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Chiew AL, Buckley NA. The serotonin toxidrome: shortfalls of current diagnostic criteria for related syndromes. Clin Toxicol (Phila) 2021; 60:143-158. [PMID: 34806513 DOI: 10.1080/15563650.2021.1993242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Serotonin syndrome (toxicity) describes adverse drug effects from toxic amounts of intra-synaptic central nervous system serotonin. A wide range of drugs have been implicated to cause serotonin toxicity, not all justifiably. The plausible agents all have a final common pathway resulting in a substantial increase in central nervous system serotonergic neurotransmission. Serotonin toxicity is characterized by neuromuscular excitation, mental status changes, and autonomic dysregulation. Signs and symptoms represent a spectrum of toxicity (mild to life-threatening) related to increasing serotonin concentrations. As there is no consensus on the threshold for "toxicity" or diagnostic criteria, the true incidence of serotonin toxicity is unknown. The incidence in overdose is easier to quantify and is reasonably common in serotonergic antidepressant overdoses. In a large case series of overdoses, moderate serotonin toxicity occurred in 14% of poisonings with a selective serotonin reuptake inhibitor. While half those ingesting a monoamine oxidase inhibitor in combination with a serotonergic agent in overdose exhibit at least moderately severe serotonin toxicity. In contrast, the incidence of serotonin toxicity in those on therapeutic serotonergic agents appears to be very low. OBJECTIVES To provide a narrative review of the current diagnostic criteria, utilizing case reports of fatalities to evaluate how many meet the various diagnostic criteria and propose practical solutions to resolve controversies in diagnosis. METHODS A review of serotonin toxicity diagnostic criteria in the English literature was completed by searching Embase and PubMed from January 1990 to July 2021 for the keywords "serotonin syndrome/toxicity" paired with "diagnostic criteria" or "diagnosis." Also, fatal cases of serotonin toxicity identified from a recent systematic review were independently examined to determine what diagnostic criteria were met and whether serotonin toxicity or another cause was most likely. REVIEW OF DIAGNOSIS CRITERIA Serotonin toxicity is a clinical diagnosis, four diagnostic criteria (Sternbach, Serotonin Syndrome Scale, Radomski, and Hunter) have been proposed. However, the Serotonin Syndrome Scale has not been validated in patients with serotonin toxicity and only utilized in those on a serotonergic agent. The remaining three criteria are utilized more widely but have undergone little refinement or validation. REVIEW OF FATAL CASES Shortfalls with diagnostic criteria can be illustrated by examining case fatalities. Of 55 fatal cases reviewed, 12 (22%) were unlikely to be serotonin toxicity. Sternbach and Radomski criteria were met by 25 (45%), 20 (36%) had insufficient data reported and 10 (18%) met an exclusion criterion. Few had sufficient information reported to determine whether Hunter Criteria were met, with only 13 (24%) documented as meeting the criteria, the remaining 42 (76%) had insufficient data. RESOLVING SHORTFALLS IN CURRENT DIAGNOSTIC CRITERIA As serotonin toxicity is a clinical diagnosis, issues arise when basing the diagnosis on symptom criteria alone, without considering whether the drug/s ingested increase central nervous system serotonin or whether there is an alternative diagnosis. This has resulted in case reports and government warnings for drugs that cannot plausibly cause significant serotonin toxicity (e.g., ondansetron and antipsychotics). We propose when assessing for a serotonin toxidrome, both the causative agent(s) and clinical scenario is considered to determine the likelihood of serotonin toxicity. Then the clinical features assessed, those with a moderate to high prior probability (e.g., serotonergic drug-drug interaction, overdose, recent initiation or increase in dose of serotonergic agent/s) could be diagnosed based on the Hunter criteria. However, those with a low probability (e.g., stable therapeutic doses of a serotonergic agent) require more specific and stringent criteria. Finally, we propose a minimum dataset for case reports/series of serotonin toxicity. CONCLUSIONS More complete and accurate reporting of serotonin toxicity cases is required in the future, to avoid further misleading associations that are physiologically implausible.
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Affiliation(s)
- Angela L Chiew
- Clinical Toxicology Unit, Prince of Wales Hospital, Randwick, Australia.,NSW Poisons Information Centre, The Children's Hospital at Westmead, Westmead, Australia
| | - Nicholas A Buckley
- NSW Poisons Information Centre, The Children's Hospital at Westmead, Westmead, Australia.,Clinical Pharmacology and Toxicology Research Group, Biomedical Informatics and Digital Health, Faculty of Medicine and Health, The University of Sydney, Sydney, Australia
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18
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Newman-Tancredi A, Depoortère RY, Kleven MS, Kołaczkowski M, Zimmer L. Translating biased agonists from molecules to medications: Serotonin 5-HT 1A receptor functional selectivity for CNS disorders. Pharmacol Ther 2021; 229:107937. [PMID: 34174274 DOI: 10.1016/j.pharmthera.2021.107937] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/01/2021] [Accepted: 06/17/2021] [Indexed: 12/18/2022]
Abstract
Biased agonism (or "functional selectivity") at G-protein-coupled receptors has attracted rapidly increasing interest as a means to improve discovery of more efficacious and safer pharmacotherapeutics. However, most studies are limited to in vitro tests of cellular signaling and few biased agonists have progressed to in vivo testing. As concerns 5-HT1A receptors, which exert a major control of serotonergic signaling in diverse CNS regions, study of biased agonism has previously been limited by the poor target selectivity and/or partial agonism of classically available ligands. However, a new generation of highly selective, efficacious and druggable agonists has advanced the study of biased agonism at this receptor and created new therapeutic opportunities. These novel agonists show differential properties for G-protein signaling, cellular signaling (particularly pERK), electrophysiological effects, neurotransmitter release, neuroimaging by PET and pharmacoMRI, and behavioral tests of mood, motor activity and side effects. Overall, NLX-101 (a.k.a. F15599) exhibits preferential activation of cortical and brain stem 5-HT1A receptors, whereas NLX-112 (a.k.a. befiradol or F13640) shows prominent activation of 5-HT1A autoreceptors in Raphe nuclei and in regions associated with motor control. Accordingly, NLX-101 is potently active in rodent models of depression and respiratory control, whereas NLX-112 shows promising activity in models of Parkinson's disease across several species - rat, marmoset and macaque. Moreover, NLX-112 has also been labeled with 18F to produce the first agonist PET radiopharmaceutical (known as [18F]-F13640) for investigation of the active state of 5-HT1A receptors in rodent, primate and human. The structure-functional activity relationships of biased agonists have been investigated by receptor modeling and novel compounds have been identified which exhibit increased affinity at 5-HT1A receptors and new profiles of cellular signaling bias, notably for β-arrestin recruitment versus pERK. Taken together, the data suggest that 5-HT1A receptor biased agonists constitute potentially superior pharmacological agents for treatment of CNS disorders involving serotonergic mechanisms.
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Affiliation(s)
| | | | | | | | - Luc Zimmer
- Université Claude Bernard Lyon1, Lyon, France; Hospices Civils de Lyon, Lyon, France; Lyon Neuroscience Research Center, CNRS-INSERM, France
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19
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Cyproheptadine for Serotonin Toxicity: an Updated Systematic Review and Grading of Evidence. CURRENT EMERGENCY AND HOSPITAL MEDICINE REPORTS 2020. [DOI: 10.1007/s40138-020-00222-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Aday JS, Davoli CC, Bloesch EK. Psychedelics and virtual reality: parallels and applications. Ther Adv Psychopharmacol 2020; 10:2045125320948356. [PMID: 32922734 PMCID: PMC7446267 DOI: 10.1177/2045125320948356] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Accepted: 07/14/2020] [Indexed: 01/29/2023] Open
Abstract
Psychedelic drugs and virtual reality (VR) each have the capacity to disrupt the rigidity and limitations of typical conscious experience. This article delineates the parallels among psychedelic and VR states as well as their potential synergistic applications in clinical and recreational settings. Findings indicate that, individually, psychedelics and VR are used in analogous ways to alter sensory experience and evoke awe. They are also both used in tandem with traditional therapies to treat a variety of mood disorders; their shared capacity to transiently alter perspective and disrupt rigid patterns of mental experience may underly their analogous and transdiagnostic therapeutic uses. In terms of their combined applications, a number of recreational users currently utilize psychedelics and VR together to enhance their experience. We propose that VR may be a useful tool for preparing hallucinogen-naïve participants in clinical trials for the sensory distortions experienced in psychedelic states. Given the critical role of "setting" in psychedelic treatment outcomes, we also detail how VR could be used to optimize the environment in psychedelic sessions. Finally, we provide considerations for future studies and detail how advancements in psychedelic and VR research can inform one another. Collectively, this article outlines a number of connections between psychedelics and VR, and, more broadly, is representative of growing scientific interest into the interactions among technology, psychopharmacology, and mental health.
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Affiliation(s)
- Jacob S. Aday
- Department of Psychology, Central Michigan University, 101 Sloan Hall, Mount Pleasant, MI 48858, USA
| | | | - Emily K. Bloesch
- Department of Psychology, Central Michigan University, Mount Pleasant, MI, USA
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21
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Sniecikowska J, Newman-Tancredi A, Kolaczkowski M. From Receptor Selectivity to Functional Selectivity: The Rise of Biased Agonism in 5-HT1A Receptor Drug Discovery. Curr Top Med Chem 2019; 19:2393-2420. [PMID: 31544717 DOI: 10.2174/1568026619666190911122040] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2019] [Revised: 08/27/2019] [Accepted: 08/28/2019] [Indexed: 02/08/2023]
Abstract
Despite extensive efforts to design serotonin 5-HT1A receptor compounds, there are currently no clinically available selective agonists to explore the therapeutic potential of activating this receptor. Commonly used drugs targeting 5-HT1A receptors, such as buspirone or other azapirone compounds, possess only limited selectivity over cross-reacting sites, act as partial agonists for 5-HT1A receptor activation, and are metabolically labile, generating active metabolites. In addition, drug discovery has been hampered by the multiplicity of 5-HT1A receptor subpopulations, expressed in different brain regions, that are coupled to distinct molecular signaling mechanisms and mediate a wide variety of physiological responses, both desired and undesired. In this context, advances in 5-HT1A receptor drug discovery have attracted attention of novel 'biased agonists' that are selective, efficacious and preferentially target the brain regions that mediate therapeutic activity without triggering side effects. The prototypical first-in-class compound NLX-101 (a.k.a. F15599; 3-chloro-4-fluorophenyl-[4-fluoro-4-[[(5-methylpyrimidin-2-ylmethyl)amino]methyl]piperidin- 1-yl]methanone), preferentially activates 5-HT1A receptors in cortical regions and exhibits potent, rapidacting and sustained antidepressant-like and procognitive properties in animal models. Here the background has been reviewed that led to the discovery of the class of 1-(1-benzoylpiperidin-4- yl)methanamine derivatives, including NLX-101, as well as recent advances in discovery of novel 5-HT1A receptor biased agonists, notably aryloxyethyl derivatives of 1‑(1-benzoylpiperidin-4yl)methanamine which show promising pharmacological activity both in vitro and in vivo. Overall, the results suggest that opportunities exist for innovative drug discovery of selective 5-HT1A receptor biased agonists that may open new avenues for the treatment of CNS disorders involving dysfunction of serotonergic neurotransmission.
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Affiliation(s)
- Joanna Sniecikowska
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Chair of Pharmaceutical Chemistry, 9 Medyczna Street, 30-688 Krakow, Poland
| | | | - Marcin Kolaczkowski
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Chair of Pharmaceutical Chemistry, 9 Medyczna Street, 30-688 Krakow, Poland
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22
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Chen Y, Blough BE, Murnane KS, Canal CE. The synthetic cathinone psychostimulant α-PPP antagonizes serotonin 5-HT 2A receptors: In vitro and in vivo evidence. Drug Test Anal 2019; 11:990-998. [PMID: 30845376 DOI: 10.1002/dta.2582] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Revised: 02/26/2019] [Accepted: 02/27/2019] [Indexed: 01/08/2023]
Abstract
Synthetic cathinones (SCs) are β-keto analogs of amphetamines. Like amphetamines, SCs target monoamine transporters; however, unusual neuropsychiatric symptoms have been associated with abuse of some SCs, suggesting SCs might possess additional pharmacological properties. We performed radioligand competition binding assays to assess the affinities of nine SCs at human 5-HT2A receptors (5-HT2A R) and muscarinic M1 receptors (M1 R) transiently expressed in HEK293 cells. None of the SCs exhibited affinity at M1 R (minimal displacement of [~Kd ] [3 H]scopolamine up to 10 μM). However, two SCs, α-pyrrolidinopropiophenone (α-PPP) and 4-methyl-α-PPP, had low μM Ki values at 5-HT2A R. In 5-HT2A R-phosphoinositide hydrolysis assays, α-PPP and 4-methyl-α-PPP displayed inverse agonist activity. We further assessed the 5-HT2A R functional activity of α-PPP, and observed it competitively antagonized 5-HT2A R signaling stimulated by the 5-HT2 R agonist (±)-2,5-dimethoxy-4-iodoamphetamine (DOI; Kb = 851 nM). To assess in vivo 5-HT2A R activity, we examined the effects of α-PPP on the DOI-elicited head-twitch response (HTR) in mice. α-PPP dose-dependently blocked the HTR with maximal suppression at 10 mg/kg (P < 0.0001), which is a moderate dose used in studies investigating psychostimulant properties of α-PPP. To corroborate a 5-HT2A R mechanism, we also tested 3,4-methylenedioxy-α-PPP (MDPPP) and 3-bromomethcathinone (3-BMC), SCs that we observed had 5-HT2A R Ki s > 10 μM. Neither MDPPP nor 3-BMC, at 10 mg/kg doses, attenuated the DOI HTR. Our results suggest α-PPP has antagonist interactions at 5-HT2A R in vitro that may translate at physiologically-relevant doses in vivo. Considering 5-HT2A R antagonism has been shown to mitigate effects of psychostimulants, this property may contribute to α-PPPs unpopularity compared to other monoamine transporter inhibitors.
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Affiliation(s)
- Yiming Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA, USA
| | - Bruce E Blough
- Center for Drug Discovery, Research Triangle Institute, Research Triangle Park, NC, USA
| | - Kevin S Murnane
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA, USA
| | - Clinton E Canal
- Department of Pharmaceutical Sciences, College of Pharmacy, Mercer University, Atlanta, GA, USA
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Khaidarov AR, Rostovskii NV, Zolotarev AA, Khlebnikov AF, Novikov MS. Synthesis of 1-(2-Aminovinyl)indoles and 1,3′-Biindoles by Reaction of 2,2-Diaryl-Substituted 2H-Azirines with α-Imino Rh(II) Carbenoids. J Org Chem 2019; 84:3743-3753. [DOI: 10.1021/acs.joc.8b03205] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Adel R. Khaidarov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Nikolai V. Rostovskii
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Andrey A. Zolotarev
- St. Petersburg State University, Institute of Earth Sciences, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Alexander F. Khlebnikov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
| | - Mikhail S. Novikov
- St. Petersburg State University, Institute of Chemistry, 7/9 Universitetskaya nab., St. Petersburg 199034, Russia
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Opioid analgesic drugs and serotonin toxicity (syndrome): mechanisms, animal models, and links to clinical effects. Arch Toxicol 2018; 92:2457-2473. [DOI: 10.1007/s00204-018-2244-6] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/13/2018] [Indexed: 12/11/2022]
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25
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Affiliation(s)
- Ai-Leng Foong
- University of Waterloo School of Pharmacy, Waterloo, Ontario
| | - Tejal Patel
- University of Waterloo School of Pharmacy, Waterloo, Ontario
| | - Jamie Kellar
- University of Waterloo School of Pharmacy, Waterloo, Ontario
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Ong JJY, De Felice M. Migraine Treatment: Current Acute Medications and Their Potential Mechanisms of Action. Neurotherapeutics 2018; 15:274-290. [PMID: 29235068 PMCID: PMC5935632 DOI: 10.1007/s13311-017-0592-1] [Citation(s) in RCA: 98] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
Migraine is a common and disabling primary headache disorder with a significant socioeconomic burden. The management of migraine is multifaceted and is generally dichotomized into acute and preventive strategies, with several treatment modalities. The aims of acute pharmacological treatment are to rapidly restore function with minimal recurrence, with the avoidance of side effects. The choice of pharmacological treatment is individualized, and is based on the consideration of the characteristics of the migraine attack, the patient's concomitant medical problems, and treatment preferences. Notwithstanding, a good understanding of the pharmacodynamic and pharmacokinetic properties of the various drug options is essential to guide therapy. The current approach and concepts relevant to the acute pharmacological treatment of migraine will be explored in this review.
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Affiliation(s)
- Jonathan Jia Yuan Ong
- Headache Group, Department of Basic and Clinical Neuroscience, Institute of Psychiatry, Psychology and Neuroscience, Kings College London, London, UK.
- NIHR-Wellcome Trust King's Clinical Research Facility, Kings College Hospital, London, UK.
- Department of Medicine, Division of Neurology, National University Health System, University Medicine Cluster, Singapore, Singapore.
| | - Milena De Felice
- School of Clinical Dentistry, The University of Sheffield, Sheffield, UK
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28
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Ulrich S, Ricken R, Adli M. Tranylcypromine in mind (Part I): Review of pharmacology. Eur Neuropsychopharmacol 2017; 27:697-713. [PMID: 28655495 DOI: 10.1016/j.euroneuro.2017.05.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 05/02/2017] [Accepted: 05/22/2017] [Indexed: 12/21/2022]
Abstract
It has been over 50 years since a review has focused exclusively on the monoamine oxidase (MAO) inhibitor tranylcypromine (TCP). A new review has therefore been conducted for TCP in two parts which are written to be read preferably in close conjunction: Part I - pharmacodynamics, pharmacokinetics, drug interactions, toxicology; and Part II - clinical studies with meta-analysis of controlled studies in depression, practice of TCP treatment, place in therapy. Pharmacological data of this review part I characterize TCP as an irreversible and nonselective MAO-A/B inhibitor at low therapeutic doses of 20mg/day with supplementary norepinephrine reuptake inhibition at higher doses of 40-60mg/day. Serotonin, norepinephrine, dopamine, and trace amines, such as the "endogenous amphetamine" phenylethylamine, are increased in brain, which leads to changes in neuroplasticity by e.g. increased neurotrophic growth factors and translates to reduced stress-induced hypersecretion of corticotropin releasing factor (CRF) and positive testing in animal studies of depression. TCP has a pharmacokinetic half-life (t1/2) of only 2h which is considerably lower than for most other antidepressant drugs. However, a very long pharmacodynamic half-life of about one week is found because of the irreversible MAO inhibition. New studies show that, except for cytochrome P450 (CYP) 2A6, no other drug metabolizing CYP-enzymes are inhibited by TCP at therapeutic doses which defines a low potential of pharmacokinetic interactions in the direction from TCP to other drugs. Insufficient information is available, however, for plasma concentrations of TCP influenced by comedication. More quantitative data are also needed for TCP metabolites such as p-hydroxytranylcypromine and N-acetyltranylcypromine. Pharmacodynamic drug interactions comprise for instance severe serotonin toxicity (SST) with serotonergic drugs and hypertensive crisis with indirect sympathomimetics. Because of the risk of severe food interaction, TCP treatment remains beset with the need for a mandatory tyramine-restricted diet. Toxicity in overdose is similar to amitriptyline and imipramine according to the distance of therapeutic to toxic doses. In conclusion, TCP is characterized by an exceptional pharmacology which is different to most other antidepressant drugs, and a more special evaluation of clinical efficacy and safety may therefore be needed.
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Affiliation(s)
- Sven Ulrich
- Aristo Pharma GmbH, Wallenroder Str. 8-10, 13435 Berlin, Germany.
| | - Roland Ricken
- Department of Psychiatry and Psychotherapy, Charité, Campus Charité Mitte, Charitéplatz 1, 10117 Berlin, Germany
| | - Mazda Adli
- Department of Psychiatry and Psychotherapy, Charité, Campus Charité Mitte, Charitéplatz 1, 10117 Berlin, Germany
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Characterizing the differential roles of striatal 5-HT 1A auto- and hetero-receptors in the reduction of l -DOPA-induced dyskinesia. Exp Neurol 2017; 292:168-178. [DOI: 10.1016/j.expneurol.2017.03.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2016] [Revised: 02/24/2017] [Accepted: 03/22/2017] [Indexed: 10/19/2022]
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Development of a mechanism-based pharmacokinetic/pharmacodynamic model to characterize the thermoregulatory effects of serotonergic drugs in mice. Acta Pharm Sin B 2016; 6:492-503. [PMID: 27709018 PMCID: PMC5045556 DOI: 10.1016/j.apsb.2016.07.007] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2016] [Revised: 04/25/2016] [Accepted: 04/27/2016] [Indexed: 01/01/2023] Open
Abstract
We have shown recently that concurrent harmaline, a monoamine oxidase-A inhibitor (MAOI), potentiates serotonin (5-HT) receptor agonist 5-methoxy-N,N-dimethyltryptamine (5-MeO-DMT)-induced hyperthermia. The objective of this study was to develop an integrated pharmacokinetic/pharmacodynamic (PK/PD) model to characterize and predict the thermoregulatory effects of such serotonergic drugs in mice. Physiological thermoregulation was described by a mechanism-based indirect-response model with adaptive feedback control. Harmaline-induced hypothermia and 5-MeO-DMT–elicited hyperthermia were attributable to the loss of heat through the activation of 5-HT1A receptor and thermogenesis via the stimulation of 5-HT2A receptor, respectively. Thus serotonergic 5-MeO-DMT–induced hyperthermia was readily distinguished from handling/injection stress-provoked hyperthermic effects. This PK/PD model was able to simultaneously describe all experimental data including the impact of drug-metabolizing enzyme status on 5-MeO-DMT and harmaline PK properties, and drug- and stress-induced simple hypo/hyperthermic and complex biphasic effects. Furthermore, the modeling results revealed a 4-fold decrease of apparent SC50 value (1.88–0.496 µmol/L) for 5-MeO-DMT when harmaline was co-administered, providing a quantitative assessment for the impact of concurrent MAOI harmaline on 5-MeO-DMT–induced hyperthermia. In addition, the hyperpyrexia caused by toxic dose combinations of harmaline and 5-MeO-DMT were linked to the increased systemic exposure to harmaline rather than 5-MeO-DMT, although the body temperature profiles were mispredicted by the model. The results indicate that current PK/PD model may be used as a new conceptual framework to define the impact of serotonergic agents and stress factors on thermoregulation.
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Ansari H, Ziad S. Drug-Drug Interactions in Headache Medicine. Headache 2016; 56:1241-8. [DOI: 10.1111/head.12864] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2016] [Accepted: 05/06/2016] [Indexed: 11/30/2022]
Affiliation(s)
- Hossein Ansari
- Department of Neuroscience; Headache Clinic; University of California, San Diego (UCSD); San Diego CA USA
| | - Sanaz Ziad
- University of the Pacific Thomas J. Long School of Pharmacy and Health Sciences; Stockton CA USA
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Loewendorf AI, Matynia A, Saribekyan H, Gross N, Csete M, Harrington M. Roads Less Traveled: Sexual Dimorphism and Mast Cell Contributions to Migraine Pathology. Front Immunol 2016; 7:140. [PMID: 27148260 PMCID: PMC4836167 DOI: 10.3389/fimmu.2016.00140] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 03/31/2016] [Indexed: 12/30/2022] Open
Abstract
Migraine is a common, little understood, and debilitating disease. It is much more prominent in women than in men (~2/3 are women) but the reasons for female preponderance are not clear. Migraineurs frequently experience severe comorbidities, such as allergies, depression, irritable bowel syndrome, and others; many of the comorbidities are more common in females. Current treatments for migraine are not gender specific, and rarely are migraine and its comorbidities considered and treated by the same specialist. Thus, migraine treatments represent a huge unmet medical need, which will only be addressed with greater understanding of its underlying pathophysiology. We discuss the current knowledge about sex differences in migraine and its comorbidities, and focus on the potential role of mast cells (MCs) in both. Sex-based differences in pain recognition and drug responses, fluid balance, and the blood–brain barrier are recognized but their impact on migraine is not well studied. Furthermore, MCs are well recognized for their prominent role in allergies but much less is known about their contributions to pain pathways in general and migraine specifically. MC-neuron bidirectional communication uniquely positions these cells as potential initiators and/or perpetuators of pain. MCs can secrete nociceptor sensitizing and activating agents, such as serotonin, prostaglandins, histamine, and proteolytic enzymes that can also activate the pain-mediating transient receptor potential vanilloid channels. MCs express receptors for both estrogen and progesterone that induce degranulation upon binding. Furthermore, environmental estrogens, such as Bisphenol A, activate MCs in preclinical models but their impact on pain pathways or migraine is understudied. We hope that this discussion will encourage scientists and physicians alike to bridge the knowledge gaps linking sex, MCs, and migraine to develop better, more comprehensive treatments for migraine patients.
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Affiliation(s)
| | - Anna Matynia
- Department of Ophthalmology, Jules Stein Eye Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA; Brain Research Institute, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA, USA
| | | | - Noah Gross
- Huntington Medical Research Institutes , Pasadena, CA , USA
| | - Marie Csete
- Huntington Medical Research Institutes , Pasadena, CA , USA
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Lionetto L, Borro M, Curto M, Capi M, Negro A, Cipolla F, Gentile G, Martelletti P. Choosing the safest acute therapy during chronic migraine prophylactic treatment: pharmacokinetic and pharmacodynamic considerations. Expert Opin Drug Metab Toxicol 2016; 12:399-406. [DOI: 10.1517/17425255.2016.1154042] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Abstract
ABSTRACT:Objective:To assess the evidence base for drugs used for acute treatment of episodic migraine (headache on < 14 days a month) in Canada.Methods:A detailed search strategy was employed to find relevant published clinical trials of drugs used in Canada for the acute treatment of migraine in adults. Primarily meta-analyses and systematic reviews were included. Where these were not available for a drug or were out of date, individual clinical trial reports were utilized. Only double-blind randomized clinical trials with placebo or active drug controls were included in the analysis. Recommendations and levels of evidence were graded according to the principles of the Grading of Recommendations Assessment, Development and Evaluation (GRADE) Working Group, using a consensus group.Results:Eighteen acute migraine medications and two adjunctive medications were evaluated. Twelve acute medications received a strong recommendation with supporting high quality evidence for use in acute migraine therapy (almotriptan, eletriptan, frovatriptan, naratriptan, rizatriptan, sumatriptan, zolmitriptan, ASA, ibuprofen, naproxen sodium, diclofenac potassium, and acetaminophen). Four acute medications received a weak recommendation for use with low or moderate quality evidence (dihydroergotamine, ergotamine, codeine-containing combination analgesics, and tramadol-containing combination analgesics). Three of these medications were NOT recommended for routine use (ergotamine, and codeine- and tramadol-containing medications), and strong recommendations were made to avoid use of butorphanol and butalbital-containing medications. Both metoclopramide and domperidone received a strong recommendation for use with acute migraine attack medications where necessary.Conclusion:Our targeted review formulated recommendations for the available acute medications for migraine treatment according to the GRADE method. This should be helpful for practitioners who prescribe medications for acute migraine treatment.
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Peck KR, Smitherman TA, Baskin SM. Traditional and alternative treatments for depression: implications for migraine management. Headache 2015; 55:351-5. [PMID: 25644990 DOI: 10.1111/head.12521] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/05/2015] [Indexed: 11/28/2022]
Abstract
BACKGROUND Migraine is frequently comorbid with major depressive disorder, the presence of which confers increased disability and various clinical challenges. METHODS/RESULTS The present article reviews empirically supported pharmacologic and cognitive-behavioral interventions for depression, as well as the emerging yet generally mixed efficacy for various complementary and alternative medicine depression treatments. DISCUSSION AND CONCLUSION Clinical implications and treatment strategies for migraine patients with comorbid depression are discussed. The literature reviewed here draws together clinical practice options for clinicians.
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Affiliation(s)
- Kelly R Peck
- Department of Psychology, University of Mississippi, Oxford, MS, USA
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Costa A, Antonaci F, Ramusino MC, Nappi G. The Neuropharmacology of Cluster Headache and other Trigeminal Autonomic Cephalalgias. Curr Neuropharmacol 2015; 13:304-23. [PMID: 26411963 PMCID: PMC4812802 DOI: 10.2174/1570159x13666150309233556] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2014] [Revised: 12/19/2014] [Accepted: 03/06/2015] [Indexed: 11/22/2022] Open
Abstract
Trigeminal autonomic cephalalgias (TACs) are a group of primary headaches including cluster headache (CH), paroxysmal hemicrania (PH) and short-lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT). Another form, hemicrania continua (HC), is also included this group due to its clinical and pathophysiological similarities. CH is the most common of these syndromes, the others being infrequent in the general population. The pathophysiology of the TACs has been partly elucidated by a number of recent neuroimaging studies, which implicate brain regions associated with nociception (pain matrix). In addition, the hypothalamic activation observed in the course of TAC attacks and the observed efficacy of hypothalamic neurostimulation in CH patients suggest that the hypothalamus is another key structure. Hypothalamic activation may indeed be involved in attack initiation, but it may also lead to a condition of central facilitation underlying the recurrence of pain episodes. The TACs share many pathophysiological features, but are characterised by differences in attack duration and frequency, and to some extent treatment response. Although alternative strategies for the TACs, especially CH, are now emerging (such as neurostimulation techniques), this review focuses on the available pharmacological treatments complying with the most recent guidelines. We discuss the clinical efficacy and tolerability of the currently used drugs. Due to the low frequency of most TACs, few randomised controlled trials have been conducted. The therapies of choice in CH continue to be the triptans and oxygen for acute treatment, and verapamil and lithium for prevention, but promising results have recently been obtained with novel modes of administration of the triptans and other agents, and several other treatments are currently under study. Indomethacin is extremely effective in PH and HC, while antiepileptic drugs (especially lamotrigine) appear to be increasingly useful in SUNCT. We highlight the need for appropriate studies investigating treatments for these rare, but lifelong and disabling conditions.
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Affiliation(s)
- Alfredo Costa
- National Institute of Neurology IRCCS C. Mondino Foundation, University of Pavia, via Mondino 2, 27100 Pavia, Italy.
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Abstract
Iatrogenic disease is one of the most frequent causes of hospital admissions and constitutes a growing public health problem. The most common type of iatrogenic neurologic disease is pharmacologic, and the central and peripheral nervous systems are particularly vulnerable. Despite this, iatrogenic disease is generally overlooked as a differential diagnosis among neurologic patients. The clinical picture of pharmacologically mediated iatrogenic neurologic disease can range from mild to fatal. Common and uncommon forms of drug toxicity are comprehensively addressed in this chapter. While the majority of neurologic adverse effects are listed and referenced in the tables, the most relevant issues are further discussed in the text.
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Affiliation(s)
- Luciano A Sposato
- Department of Clinical Neurological Sciences, London Health Sciences Centre, University of Western Ontario, London, Ontario, Canada
| | - Osvaldo Fustinoni
- INEBA Institute of Neurosciences, Buenos Aires, Argentina; Faculty of Medicine, University of Buenos Aires, Buenos Aires, Argentina.
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Werremeyer A. Retrospective review of a case of serotonin syndrome after discontinuation of risperidone: Was withdrawal neuroleptic malignant syndrome missed? Ment Health Clin 2013. [DOI: 10.9740/mhc.n166829] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Amy Werremeyer
- 1Vice Chair and Associate Professor Pharmacy Practice, College of Pharmacy, Nursing and Allied Sciences, North Dakota State University
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Haberzettl R, Bert B, Fink H, Fox MA. Animal models of the serotonin syndrome: a systematic review. Behav Brain Res 2013; 256:328-45. [PMID: 24004848 DOI: 10.1016/j.bbr.2013.08.045] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 08/26/2013] [Accepted: 08/28/2013] [Indexed: 11/16/2022]
Abstract
The serotonin syndrome (SS) is a potentially life-threatening disorder in humans which is induced by ingestion of an overdose or by combination of two or more serotonin (5-HT)-enhancing drugs. In animals, acute administration of direct and indirect 5-HT agonists also leads to a set of behavioral and autonomic responses. In the current review, we provide an overview of the existing versions of the animal model of the SS. With a focus on studies in rats and mice, we analyze the frequency of behavioral and autonomic responses following administration of 5-HT-enhancing drugs and direct 5-HT agonists administered alone or in combination, and we briefly discuss the receptor mediation of these responses. Considering species differences, we identify a distinct set of behavioral and autonomic responses that are consistently observed following administration of direct and indirect 5-HT agonists. Finally, we discuss the importance of a standardized assessment of SS responses in rodents and the utility of animal models of the SS in translational studies, and provide suggestions for future research.
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Affiliation(s)
- Robert Haberzettl
- Institute of Pharmacology and Toxicology, School of Veterinary Medicine, Freie Universität Berlin, Koserstrasse 20, 14195 Berlin, Germany
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Neisewander JL, Cheung THC, Pentkowski NS. Dopamine D3 and 5-HT1B receptor dysregulation as a result of psychostimulant intake and forced abstinence: Implications for medications development. Neuropharmacology 2013; 76 Pt B:301-19. [PMID: 23973315 DOI: 10.1016/j.neuropharm.2013.08.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 07/24/2013] [Accepted: 08/05/2013] [Indexed: 10/26/2022]
Abstract
Addiction to psychostimulants, including cocaine and amphetamine, is associated with dysregulation of dopamine and serotonin (5-HT) neurotransmitter systems. Neuroadaptations in these systems vary depending on the stage of the drug taking-abstinence-relapse cycle. Consequently, the effects of potential treatments that target these systems may vary depending on whether they are given during abstinence or relapse. In this review, we discuss evidence that dopamine D3 receptors (D3Rs) and 5-HT1B receptors (5-HT1BRs) are dysregulated in response to both chronic psychostimulant use and subsequent abstinence. We then review findings from preclinical self-administration models which support targeting D3Rs and 5-HT1BRs as potential medications for psychostimulant dependence. Potential side effects of the treatments are discussed and attention is given to studies reporting positive treatment outcomes that depend on: 1) whether testing occurs during self-administration versus abstinence, 2) whether escalation of drug self-administration has occurred, 3) whether the treatments are given repeatedly, and 4) whether social factors influence treatment outcomes. We conclude that D3/D2 agonists may decrease psychostimulant intake; however, side effects of D3/D2R full agonists may limit their therapeutic potential, whereas D3/D2R partial agonists have fewer undesirable side effects. D3-selective antagonists may not reduce psychostimulant intake during relapse, but nonetheless, may decrease motivation for seeking psychostimulants with relatively few side-effects. 5-HT1BR agonists provide a striking example of treatment outcomes that are dependent on the stage of the addiction cycle. Specifically, these agonists initially increase cocaine's reinforcing effects during maintenance of self-administration, but after a period of abstinence they reduce psychostimulant seeking and the resumption of self-administration. In conclusion, we suggest that factors contributing to dysregulation of monoamine systems, including drug history, abstinence, and social context, should be considered when evaluating potential treatments to better model treatment effects in humans. This article is part of a Special Issue entitled 'NIDA 40th Anniversary Issue'.
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Affiliation(s)
- Janet L Neisewander
- School of Life Sciences, P.O. Box 874501, Arizona State University, Tempe, AZ 85287-4501, USA.
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Affiliation(s)
- Brad E. Cooper
- Brad E. Cooper is Clinical Pharmacist, Critical Care, UPMC Hamot, 201 State St, Erie, PA 16550 . Celeste A. Sejnowski is PGY1 Pharmacy Resident, UPMC Hamot, Erie, Pennsylvania
| | - Celeste A. Sejnowski
- Brad E. Cooper is Clinical Pharmacist, Critical Care, UPMC Hamot, 201 State St, Erie, PA 16550 . Celeste A. Sejnowski is PGY1 Pharmacy Resident, UPMC Hamot, Erie, Pennsylvania
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Smitherman TA, Kolivas ED, Bailey JR. Panic disorder and migraine: comorbidity, mechanisms, and clinical implications. Headache 2012; 53:23-45. [PMID: 23278473 DOI: 10.1111/head.12004] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/17/2012] [Indexed: 12/17/2022]
Abstract
A growing body of literature suggests that comorbid anxiety disorders are more common and more prognostically relevant among migraine sufferers than comorbid depression. Panic disorder (PD) appears to be more strongly associated with migraine than most other anxiety disorders. PD and migraine are both chronic diseases with episodic manifestations, involving significant functional impairment and shared symptoms during attacks, interictal anxiety concerning future attacks, and an absence of identifiable secondary pathology. A meta-analysis of high-quality epidemiologic study data from 1990 to 2012 indicates that the odds of PD are 3.76 times greater among individuals with migraine than those without. This association remains significant even after controlling for demographic variables and comorbid depression. Other less-rigorous community and clinical studies confirm these findings. The highest rates of PD are found among migraine with aura patients and those presenting to specialty clinics. Presence of PD is associated with greater negative impact of migraine, including more frequent attacks, increased disability, and risk for chronification and medication overuse. The mechanisms underlying this common comorbidity are poorly understood, but both pathophysiological (eg, serotonergic dysfunction, hormonal influences, dysregulation of the hypothalamic-pituitary-adrenal axis) and psychological (eg, interoceptive conditioning, fear of pain, anxiety sensitivity, avoidance behavior) factors are implicated. Means of assessing comorbid PD among treatment-seeking migraineurs are reviewed, including verbal screening for core PD symptoms, ruling out medical conditions with panic-like features, and administering validated self-report measures. Finally, evidence-based strategies for both pharmacologic and behavioral management are outlined. The first-line migraine prophylactics are not indicated for PD, and the selective serotonin re-uptake inhibitors used to treat PD are not efficacious for migraine; thus, separate agents are often required to address each condition. Core components of behavioral treatments for PD are reviewed, and their integration into clinical headache practice is discussed.
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Affiliation(s)
- Todd A Smitherman
- Department of Psychology, University of Mississippi, Oxford, MS, USA
| | | | - Jennifer R Bailey
- Department of Psychology, University of Mississippi, Oxford, MS, USA
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Carstairs SD, Griffith EA, Alayin T, Ejike JC, Cantrell FL. Recurrent Seizure Activity in a Child After Acute Vilazodone Ingestion. Ann Emerg Med 2012. [DOI: 10.1016/j.annemergmed.2012.06.020] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Abstract
Migraine is a prevalent and disabling brain disorder that costs billions of dollars annually in direct healthcare costs, and school and work absenteeism and presenteeism. The objective of acute treatment is a cost-effective, rapid restoration of functional ability, with minimal recurrence and adverse effects. The acute treatment of migraine includes specific drugs, which currently all have vasoconstrictive effects (dihydroergotamine and triptans), and nonspecific drugs that include paracetamol (acetaminophen), combination analgesics, non-steroidal anti-inflammatory drugs (NSAIDs), dopamine antagonists, narcotics and corticosteroids. NSAIDs have both peripheral and central effects on reversing migraine, and so may represent the best alternative for patients who cannot use triptans and ergots due to vascular contraindications. Narcotics and habituating medications should be avoided in the acute treatment of migraine, as the risk for transformation to chronic daily headache is excessively high at a relatively infrequent rate of exposure.
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Affiliation(s)
- Arnaldo N Da Silva
- Center for Headache and Pain, Cleveland Clinic, Cleveland, OH 44195, USA.
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Tepper SJ, Shapiro RE, Sun-Edelstein C, Evans RW, Tietjen GE. Triptans and Serotonin Syndrome - A Response. Headache 2012. [DOI: 10.1111/j.1526-4610.2012.02188.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Johnson N, Soar J, Robinson S. Concurrent Administration of Methylene Blue and a Selective Serotonin Reuptake Inhibitor: A Recipe for Serotonin Syndrome. J Intensive Care Soc 2012. [DOI: 10.1177/175114371201300318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
This case report describes the precipitation of serotonin syndrome in a patient taking a selective serotonin reuptake inhibitor, by infusion of methylene blue dye during a parathyroidectomy procedure. Methylene blue acts as a monamine oxidase inhibitor, thus increasing levels of serotonin in the brain. The authors describe the diagnosis and management of serotonin syndrome and suggest that more caution be exercised in the use of methylene blue.
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Affiliation(s)
| | - Jasmeet Soar
- Consultant in Anaesthesia and Intensive Care Medicine, Southmead Hospital, North Bristol NHS Trust
| | - Stephen Robinson
- Consultant in Anaesthesia and Intensive Care Medicine, Southmead Hospital, North Bristol NHS Trust
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