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Ngamratanapaiboon S, Srikornvit N, Hongthawonsiri P, Pornchokchai K, Wongpitoonmanachai S, Mo J, Pholkla P, Yambangyang P, Duchda P, Lohwacharin J, Ayutthaya WDN. Elucidating of the metabolic impact of risperidone on brain microvascular endothelial cells using untargeted metabolomics-based LC-MS. Toxicol Rep 2024; 13:101691. [PMID: 39104367 PMCID: PMC11299597 DOI: 10.1016/j.toxrep.2024.101691] [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: 04/24/2024] [Revised: 07/01/2024] [Accepted: 07/07/2024] [Indexed: 08/07/2024] Open
Abstract
Risperidone is useful for the treatment of schizophrenia symptoms; however, it also has side effects, and an overdose can be harmful. The metabolic effects of risperidone at high therapeutic doses and its metabolites have not been elucidated. Endogenous cellular metabolites may be comprehensively analyzed using untargeted metabolomics-based liquid chromatography-mass spectrometry (LC-MS), which can reveal changes in cell regulation and metabolic pathways. By identifying the metabolites and pathway changes using a nontargeted metabolomics-based LC-MS approach, we aimed to shed light on the potential toxicological effects of high-dose risperidone on brain microvascular endothelial cells (MVECs) associated with the human blood brain barrier. A total of 42 metabolites were selected as significant putative metabolites of the toxicological response of high-dose risperidone in MVECs. Six highly correlated pathways were identified, including those involving diacylglycerol, fatty acid, ceramide, glycerophospholipid, amino acid, and tricarboxylic acid metabolism. We demonstrated that methods focused on metabolomics are useful for identifying metabolites that may be used to clarify the mechanism of drug-induced toxicity.
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Affiliation(s)
- Surachai Ngamratanapaiboon
- Division of Pharmacology, Department of Basic Medical Sciences, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Napatarin Srikornvit
- Medical Student in Doctor of Medicine Programme, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Patipol Hongthawonsiri
- Medical Student in Doctor of Medicine Programme, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Krittaboon Pornchokchai
- Medical Student in Doctor of Medicine Programme, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Siriphattarinya Wongpitoonmanachai
- Medical Student in Doctor of Medicine Programme, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Jiajun Mo
- Medical Student in Doctor of Medicine Programme, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Petchlada Pholkla
- Medical Student in Doctor of Medicine Programme, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
| | - Pracha Yambangyang
- Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Salaya, Nakhon Pathom 73170, Thailand
| | - Phichanan Duchda
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
- Professor Aroon Sorathesn Center of Excellence in Environmental Engineering, Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Jenyuk Lohwacharin
- Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Pathumwan, Bangkok 10330, Thailand
- Professor Aroon Sorathesn Center of Excellence in Environmental Engineering, Department of Environmental Engineering, Faculty of Engineering, Chulalongkorn University, Bangkok, 10330, Thailand
| | - Watcharaporn Devakul Na Ayutthaya
- Division of Pharmacology, Department of Basic Medical Sciences, Faculty of Medicine Vajira Hospital, Navamindradhiraj University, Dusit, Bangkok 10300, Thailand
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Shilbayeh SAR, Adeen IS, Alhazmi AS, Ibrahim SF, Al Enazi FAR, Ghanem EH, Binduraihem AM. The Frequency of CYP2D6 and CYP3A4/5 Genotypes and The Impact of Their Allele Translation and Phenoconversion-Predicted Enzyme Activity on Risperidone Pharmacokinetics in Saudi Children with Autism. Biochem Genet 2024; 62:2907-2932. [PMID: 38041757 DOI: 10.1007/s10528-023-10580-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Accepted: 10/28/2023] [Indexed: 12/03/2023]
Abstract
Data on the role of CYP2D6 and CYP3A4/5 polymorphisms in relation to risperidone (RIS) pharmacokinetics (PK) in children are relatively limited and inconsistent. This is partially attributable to the limited coverage of CYP2D6 and CYP3A4/5 metabolizer phenotypes, particularly those of poor and ultrarapid metabolizers (PMs and UMs), which has led to calls for studies of populations with a non-European background that may carry variants that are less frequent in Europeans. Children ≤ 18 years old with at least 8 weeks of a RIS-based regimen were recruited from three autism centers in Riyadh, Saudi Arabia. The primary outcomes measured were plasma concentrations of RIS and 9-hydroxyrisperidone (9-OH-RIS) and their dose-adjusted (C/D) ratios as a function of phenotypes and activity score (AS). For accurate DNA genotyping, targeted pharmacogenomic testing with the Axiom PharmacoFocus Array was performed via examination of a broad collection of probesets targeting CYP2D6 and CYP3A4/5 variants. The frequency of genotypes/phenotypes and the impact of their allele translation and phenoconversion-predicted enzyme activity were examined. The final cohort included 83 individuals. The most common CYP2D6 phenotype in our population was normal metabolizers (NMs, 66.3%). Inconsistent with some previous studies, the three phenotypes of intermediate metabolizers (IMs), NMs, and UMs were significantly different in terms of RIS concentration, the RIS/9-OH-RIS ratio, the RIS C/D ratio and the 9-OH-RIS C/D ratio. According to AS analyses, there were statistically significant differences in the RIS concentration (P = 0.013), RIS/9-OH-RIS ratio (P < 0.001) and RIS C/D ratio (P = 0.030) when patients were categorized into AS ≤ 1 vs. AS > 1. None of the CYP3A4/5 star allele translated phenotypes revealed a significant influence on any of the RIS PK parameters. Notably, neither CYP2D6 nor CYP3A4/5 phenotyping demonstrated a significant impact on the total active moiety, suggesting that other gene variants could modulate RIS PK. The study confirmed the previously reported partial impact of the CYP2D6 gene on RIS PK. However, future studies using contemporary genotyping techniques targeting a wide range of variants in other candidate genes must be conducted to further examine their interactive effects on RIS PK and the clinical response.
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Affiliation(s)
- Sireen Abdul Rahim Shilbayeh
- Department of Pharmacy Practice, College of Pharmacy, Princess Nourah bint Abdulrahman University (PNU), P.O. Box 84428, 11671, Riyadh, Saudi Arabia.
| | - Iman Sharaf Adeen
- Department of Pediatric Behavior and Development and Adolescent Medicine, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Ayman Shawqi Alhazmi
- Department of Pediatric Behavior and Development and Adolescent Medicine, King Saud Medical City, Riyadh, Saudi Arabia
| | - Samah Fathy Ibrahim
- College of Medicine, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Fawwaz Abdul Razaq Al Enazi
- Department of Pediatric Behavior and Development and Adolescent Medicine, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Ezzeldeen Hasan Ghanem
- Pharmaceutical Analysis Section, King Abdullah International Medical Research Center (KAIMRC), King Abdulaziz Medical City, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Adel Mohammed Binduraihem
- Health Sciences Research Center, King Abdullah Bin Abdulaziz University Hospital, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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Como DH, Lekovitch C, Wong CM, Chew F, Bieber DC, Leland NE. Perspectives of Nursing Home Staff: Application of Dementia Training Approaches. J Appl Gerontol 2024:7334648241265195. [PMID: 39047383 DOI: 10.1177/07334648241265195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/27/2024] Open
Abstract
Non-pharmacological strategies are prioritized to manage dementia-related symptoms in nursing homes (NHs). A multiple-case study design, embedded within a pragmatic trial, examined NH staff perspectives of applying a team-based (TB) or problem-based dementia training program to resident care. A purposive sample of staff was recruited from 23 NHs to participate in one-on-one interviews, which were analyzed using a rapid qualitative approach. Both approaches yielded staff who were able to apply their training to resident care. Staff described similarities in communication strategies, family interactions, recognizing sources of behaviors, providing comfort, and ensuring resident safety. In addition, staff demonstrated increased self-efficacy when caring for residents. Differences emerged for team collaboration, engaging residents, and managing behaviors. Among TB staff, training impacted how staff cared for residents and increased teamwork. Leaders may want to consider the benefits of each approach as they deliberate on which dementia care training to provide to their staff.
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Affiliation(s)
- Dominique H Como
- Department of Occupational Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Cara Lekovitch
- Department of Occupational Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Carin M Wong
- Department of Occupational Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Felicia Chew
- Department of Occupational Therapy, Jefferson College of Rehabilitation Sciences, Thomas Jefferson University, Philadelphia, PA, USA
| | | | - Natalie E Leland
- Department of Occupational Therapy, School of Health and Rehabilitation Sciences, University of Pittsburgh, Pittsburgh, PA, USA
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Gonzalo-de Miguel A, Abascal-Peiró S, Cegla-Schvartzman FB, Martínez-Alés G, Baca-García E. Antipsychotic use in a large community sample of patients with delusional disorder. Schizophr Res 2024; 271:194-199. [PMID: 39032432 DOI: 10.1016/j.schres.2024.07.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 07/17/2024] [Accepted: 07/17/2024] [Indexed: 07/23/2024]
Abstract
BACKGROUND To examine clinical and sociodemographic differences between patients with delusional disorder; with and without diagnoses of an additional severe mental disorder (SMD) or cognitive impairment. METHODS Population-based study including all individuals diagnosed with DD between 2005 and 2021 from a large catchment area in Madrid, Spain. Sociodemographic and clinical characteristics and the antipsychotic prescription patterns of the study population was described. Patients were divided into (i) patients with DD and no additional diagnosis of SMD or cognitive impairment (DD group), (ii) patients with DD and a diagnosis of an additional SMD (DD-SMD group), and (iii) patients with DD and cognitive impairment (DD-CI group). RESULTS Of 1109 patients with a DD diagnosis (62.5 % female), 131 (11.8 %) patients were diagnosed with an additional SMD, and 69 (6.2 %) were diagnosed with cognitive impairment. DD-SMD patients were on average 10 years younger and had longer time between first mental healthcare contact and DD disorder than DD patients. DD-CI patients were on average 10 years older and had a higher proportion of females. Paliperidone (21.9 %) and aripiprazole (20.6 %) were the modal antipsychotic drugs chosen overall. DD-SMD patients were more likely to receive paliperidone and to be prescribed long-acting injectable medication; DD-CI were more likely to receive risperidone or quetiapine; and DD patients were more likely to receive olanzapine. CONCLUSIONS Sociodemographic and clinical characteristics and choice of antipsychotic drug and delivery method for individuals with DD vary based on its comorbidity.
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Affiliation(s)
- A Gonzalo-de Miguel
- Department of Psychiatry, Fundación Jiménez Díaz University Hospital, Madrid, Spain
| | - S Abascal-Peiró
- Department of Psychiatry, Rey Juan Carlos University Hospital, Móstoles, Spain
| | | | - G Martínez-Alés
- CAUSALab, Harvard TH Chan School of Public Health, Boston, MA, USA; La Paz Research Institute (IdiPAZ), Madrid, Spain; CIBERSAM (Centro de Investigación Biomédica en Red Salud Mental), Carlos III Institute of Health, Madrid, Spain; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
| | - E Baca-García
- Department of Psychiatry, Fundación Jiménez Díaz University Hospital, Madrid, Spain; Department of Psychiatry, Rey Juan Carlos University Hospital, Móstoles, Spain; CIBERSAM (Centro de Investigación Biomédica en Red Salud Mental), Carlos III Institute of Health, Madrid, Spain; Department of Psychiatry, Madrid Autonomous University, Madrid, Spain; Department of Psychiatry, General Hospital of Villalba, Madrid, Spain; Department of Psychiatry, Infanta Elena University Hospital, Valdemoro, Spain; Department of Psychiatry, Centre Hospitalier Universitaire de Nîmes, Nimes, France; Department of Psychiatry, Health Research Institute Jimenez Diaz Foundation, Madrid, Spain
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Sommerfeld-Klatta K, Jiers W, Rzepczyk S, Nowicki F, Łukasik-Głębocka M, Świderski P, Zielińska-Psuja B, Żaba Z, Żaba C. The Effect of Neuropsychiatric Drugs on the Oxidation-Reduction Balance in Therapy. Int J Mol Sci 2024; 25:7304. [PMID: 39000411 PMCID: PMC11242277 DOI: 10.3390/ijms25137304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/30/2024] [Accepted: 07/01/2024] [Indexed: 07/16/2024] Open
Abstract
The effectiveness of available neuropsychiatric drugs in the era of an increasing number of patients is not sufficient, and the complexity of neuropsychiatric disease entities that are difficult to diagnose and therapeutically is increasing. Also, discoveries about the pathophysiology of neuropsychiatric diseases are promising, including those initiating a new round of innovations in the role of oxidative stress in the etiology of neuropsychiatric diseases. Oxidative stress is highly related to mental disorders, in the treatment of which the most frequently used are first- and second-generation antipsychotics, mood stabilizers, and antidepressants. Literature reports on the effect of neuropsychiatric drugs on oxidative stress are divergent. They are starting with those proving their protective effect and ending with those confirming disturbances in the oxidation-reduction balance. The presented publication reviews the state of knowledge on the role of oxidative stress in the most frequently used therapies for neuropsychiatric diseases using first- and second-generation antipsychotic drugs, i.e., haloperidol, clozapine, risperidone, olanzapine, quetiapine, or aripiprazole, mood stabilizers: lithium, carbamazepine, valproic acid, oxcarbazepine, and antidepressants: citalopram, sertraline, and venlafaxine, along with a brief pharmacological characteristic, preclinical and clinical studies effects.
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Affiliation(s)
- Karina Sommerfeld-Klatta
- Department of Toxicology, Poznań University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland
| | - Wiktoria Jiers
- Department of Toxicology, Poznań University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland
| | - Szymon Rzepczyk
- Department of Forensic Medicine, Poznań University of Medical Sciences, 10 Rokietnicka Street, 60-806 Poznań, Poland
| | - Filip Nowicki
- Department of Forensic Medicine, Poznań University of Medical Sciences, 10 Rokietnicka Street, 60-806 Poznań, Poland
| | - Magdalena Łukasik-Głębocka
- Department of Emergency Medicine, Poznań University of Medical Sciences, 7 Rokietnicka Street, 60-806 Poznań, Poland
| | - Paweł Świderski
- Department of Forensic Medicine, Poznań University of Medical Sciences, 10 Rokietnicka Street, 60-806 Poznań, Poland
| | - Barbara Zielińska-Psuja
- Department of Toxicology, Poznań University of Medical Sciences, 3 Rokietnicka Street, 60-806 Poznań, Poland
| | - Zbigniew Żaba
- Department of Emergency Medicine, Poznań University of Medical Sciences, 7 Rokietnicka Street, 60-806 Poznań, Poland
| | - Czesław Żaba
- Department of Forensic Medicine, Poznań University of Medical Sciences, 10 Rokietnicka Street, 60-806 Poznań, Poland
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Wang HJ, Chinna-Meyyappan A, Feldman OJ, Lanctôt KL. Emerging therapies for treatment of agitation, psychosis, or apathy in Alzheimer's disease. Expert Opin Emerg Drugs 2024:1-15. [PMID: 38822731 DOI: 10.1080/14728214.2024.2363215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2024] [Accepted: 05/30/2024] [Indexed: 06/03/2024]
Abstract
INTRODUCTION Agitation, psychosis, and apathy are prevalent and highly distressing neuropsychiatric symptoms (NPS) of Alzheimer's disease (AD) that have been linked to numerous negative outcomes, including increased mortality, worsened cognitive decline, and caregiver burden. Current treatments for AD-associated agitation, namely atypical antipsychotics, provide some benefits but may increase the risk of serious adverse events and death. Meanwhile, no pharmacotherapies have been approved by regulatory agencies for the treatment of psychosis or apathy in AD. Over the past decade, many new and repurposed drugs have emerged as potential therapeutic options for managing these challenging NPS. AREAS COVERED This review aims to provide a comprehensive summary of pharmacotherapies that have recently been investigated in phase 2 and 3 clinical trials for the treatment of agitation, psychosis, or apathy in AD. EXPERT OPINION Novel atypical antipsychotics, serotonergic antidepressants, cannabinoids, and dextromethorphan combination drugs have shown promising results for alleviating agitation. Pimavanserin appears to be the most effective emerging therapy for psychosis, while methylphenidate has demonstrated good efficacy for apathy. Further research on biomarkers of NPS severity and treatment response, as well as continued improvements in methodological approaches are needed to advance the field.
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Affiliation(s)
- Hui Jue Wang
- Neuropsychopharmacology Group, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Arun Chinna-Meyyappan
- Neuropsychopharmacology Group, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Oriel J Feldman
- Neuropsychopharmacology Group, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
| | - Krista L Lanctôt
- Neuropsychopharmacology Group, Sunnybrook Research Institute, Toronto, ON, Canada
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, University of Toronto, Toronto, ON, Canada
- Department of Psychiatry, Sunnybrook Health Sciences Centre, Toronto, ON, Canada
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Mok PLH, Carr MJ, Guthrie B, Morales DR, Sheikh A, Elliott RA, Camacho EM, van Staa T, Avery AJ, Ashcroft DM. Multiple adverse outcomes associated with antipsychotic use in people with dementia: population based matched cohort study. BMJ 2024; 385:e076268. [PMID: 38631737 PMCID: PMC11022137 DOI: 10.1136/bmj-2023-076268] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 02/29/2024] [Indexed: 04/19/2024]
Abstract
OBJECTIVE To investigate risks of multiple adverse outcomes associated with use of antipsychotics in people with dementia. DESIGN Population based matched cohort study. SETTING Linked primary care, hospital and mortality data from Clinical Practice Research Datalink (CPRD), England. POPULATION Adults (≥50 years) with a diagnosis of dementia between 1 January 1998 and 31 May 2018 (n=173 910, 63.0% women). Each new antipsychotic user (n=35 339, 62.5% women) was matched with up to 15 non-users using incidence density sampling. MAIN OUTCOME MEASURES The main outcomes were stroke, venous thromboembolism, myocardial infarction, heart failure, ventricular arrhythmia, fracture, pneumonia, and acute kidney injury, stratified by periods of antipsychotic use, with absolute risks calculated using cumulative incidence in antipsychotic users versus matched comparators. An unrelated (negative control) outcome of appendicitis and cholecystitis combined was also investigated to detect potential unmeasured confounding. RESULTS Compared with non-use, any antipsychotic use was associated with increased risks of all outcomes, except ventricular arrhythmia. Current use (90 days after a prescription) was associated with elevated risks of pneumonia (hazard ratio 2.19, 95% confidence interval (CI) 2.10 to 2.28), acute kidney injury (1.72, 1.61 to 1.84), venous thromboembolism (1.62, 1.46 to 1.80), stroke (1.61, 1.52 to 1.71), fracture (1.43, 1.35 to 1.52), myocardial infarction (1.28, 1.15 to 1.42), and heart failure (1.27, 1.18 to 1.37). No increased risks were observed for the negative control outcome (appendicitis and cholecystitis). In the 90 days after drug initiation, the cumulative incidence of pneumonia among antipsychotic users was 4.48% (4.26% to 4.71%) versus 1.49% (1.45% to 1.53%) in the matched cohort of non-users (difference 2.99%, 95% CI 2.77% to 3.22%). CONCLUSIONS Antipsychotic use compared with non-use in adults with dementia was associated with increased risks of stroke, venous thromboembolism, myocardial infarction, heart failure, fracture, pneumonia, and acute kidney injury, but not ventricular arrhythmia. The range of adverse outcomes was wider than previously highlighted in regulatory alerts, with the highest risks soon after initiation of treatment.
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Affiliation(s)
- Pearl L H Mok
- Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, University of Manchester, Manchester, M13 9PT, UK
- Manchester Academic Health Science Centre, Manchester, UK
| | - Matthew J Carr
- Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, University of Manchester, Manchester, M13 9PT, UK
- Manchester Academic Health Science Centre, Manchester, UK
- NIHR Greater Manchester Patient Safety Research Collaboration, University of Manchester, Manchester, UK
| | - Bruce Guthrie
- Advanced Care Research Centre, Usher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, UK
| | - Daniel R Morales
- Population Health and Genomics, University of Dundee, Dundee, UK
| | - Aziz Sheikh
- Usher Institute, College of Medicine and Veterinary Medicine, University of Edinburgh, Edinburgh, UK
- Nuffield Department of Primary Care Health Sciences, University of Oxford, Oxford, UK
| | - Rachel A Elliott
- NIHR Greater Manchester Patient Safety Research Collaboration, University of Manchester, Manchester, UK
- Manchester Centre for Health Economics, Division of Population Health, Manchester, UK
| | - Elizabeth M Camacho
- Manchester Centre for Health Economics, Division of Population Health, Manchester, UK
| | - Tjeerd van Staa
- Division of Informatics, Imaging and Data Sciences, University of Manchester, Manchester, UK
| | - Anthony J Avery
- NIHR Greater Manchester Patient Safety Research Collaboration, University of Manchester, Manchester, UK
- Centre for Primary Care, School of Medicine, University of Nottingham, Nottingham, UK
| | - Darren M Ashcroft
- Centre for Pharmacoepidemiology and Drug Safety, Division of Pharmacy and Optometry, University of Manchester, Manchester, M13 9PT, UK
- Manchester Academic Health Science Centre, Manchester, UK
- NIHR Greater Manchester Patient Safety Research Collaboration, University of Manchester, Manchester, UK
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Cummings J, Sano M, Auer S, Bergh S, Fischer CE, Gerritsen D, Grossberg G, Ismail Z, Lanctôt K, Lapid MI, Mintzer J, Palm R, Rosenberg PB, Splaine M, Zhong K, Zhu CW. Reduction and prevention of agitation in persons with neurocognitive disorders: an international psychogeriatric association consensus algorithm. Int Psychogeriatr 2024; 36:251-262. [PMID: 36876335 PMCID: PMC10480345 DOI: 10.1017/s104161022200103x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/07/2023]
Abstract
OBJECTIVES To develop an agitation reduction and prevention algorithm is intended to guide implementation of the definition of agitation developed by the International Psychogeriatric Association (IPA). DESIGN Review of literature on treatment guidelines and recommended algorithms; algorithm development through reiterative integration of research information and expert opinion. SETTING IPA Agitation Workgroup. PARTICIPANTS IPA panel of international experts on agitation. INTERVENTION Integration of available information into a comprehensive algorithm. MEASUREMENTS None. RESULTS The IPA Agitation Work Group recommends the Investigate, Plan, and Act (IPA) approach to agitation reduction and prevention. A thorough investigation of the behavior is followed by planning and acting with an emphasis on shared decision-making; the success of the plan is evaluated and adjusted as needed. The process is repeated until agitation is reduced to an acceptable level and prevention of recurrence is optimized. Psychosocial interventions are part of every plan and are continued throughout the process. Pharmacologic interventions are organized into panels of choices for nocturnal/circadian agitation; mild-moderate agitation or agitation with prominent mood features; moderate-severe agitation; and severe agitation with threatened harm to the patient or others. Therapeutic alternatives are presented for each panel. The occurrence of agitation in a variety of venues-home, nursing home, emergency department, hospice-and adjustments to the therapeutic approach are presented. CONCLUSIONS The IPA definition of agitation is operationalized into an agitation management algorithm that emphasizes the integration of psychosocial and pharmacologic interventions, reiterative assessment of response to treatment, adjustment of therapeutic approaches to reflect the clinical situation, and shared decision-making.
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Affiliation(s)
- Jeffrey Cummings
- Joy Chambers-Grundy Professor of Brain Science, Director, Chambers-Grundy Center for Transformative Neuroscience, Co-Director, Pam Quirk Brain Health and Biomarker Laboratory, Department of Brain Health, School of Integrated Health Sciences. University of Nevada Las Vegas (UNLV)
| | - Mary Sano
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, NYC NY and James J. Peters VAMC, Bronx NY
| | - Stefanie Auer
- Centre for Dementia Studies, University for Continuing Education Krems, Austria
| | - Sverre Bergh
- The research centre for age-related functional decline and disease, Innlandet hospital trust, Ottestad, Norway
| | - Corinne E. Fischer
- Faculty of Medicine, Department of Psychiatry, University of Toronto, Canada
| | - Debby Gerritsen
- Department of Primary and Community Care, Radboud university medical center, Radboud Institute for Health Sciences, Radboud Alzheimer Center, Nijmegen, the Netherlands
| | - George Grossberg
- Department of Psychiatry & Behavioral Neuroscience, Division of Geriatric Psychiatry St Louis University School of Medicine
| | - Zahinoor Ismail
- Departments Psychiatry, Neurology, Epidemiology, and Pathology, Hotchkiss Brain Institute & O’Brien Institute for Public Health University of Calgary
| | - Krista Lanctôt
- Hurvitz Brain Sciences Research Program, Sunnybrook Research Institute; and Departments of Psychiatry and Pharmacology/Toxicology, Temerty Faculty of Medicine, University of Toronto, Toronto, Canada
| | - Maria I Lapid
- Mayo Clinic Department of Psychiatry and Psychology, Rochester, MN, USA
| | - Jacobo Mintzer
- Psychiatrist, Ralph. H. Johnson VA Medical Center, Charleston, SC and Professor, College of Health Professions, Medical University of South Carolina, Charleston, SC
| | - Rebecca Palm
- Department of Nursing Science, Faculty of Health, Witten/Herdecke University, 58455 Witten, Germany
| | - Paul B. Rosenberg
- Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine
| | - Michael Splaine
- Owner Splaine Consulting, Managing Partner, Recruitment Partners LLC
| | - Kate Zhong
- Department of Brain Health, School of Integrated Health Sciences, University of Nevada, Las Vegas
| | - Carolyn W. Zhu
- Department of Geriatrics and Palliative Medicine, Icahn School of Medicine, NYC, NY and James J. Peters VAMC, Bronx NY
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Shilbayeh SAR, Adeen IS, Alhazmi AS, Aljurayb H, Altokhais RS, Alhowaish N, Aldilaijan KE, Kamal M, Alnakhli AM. The polymorphisms of candidate pharmacokinetic and pharmacodynamic genes and their pharmacogenetic impacts on the effectiveness of risperidone maintenance therapy among Saudi children with autism. Eur J Clin Pharmacol 2024:10.1007/s00228-024-03658-w. [PMID: 38421437 DOI: 10.1007/s00228-024-03658-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Accepted: 02/22/2024] [Indexed: 03/02/2024]
Abstract
BACKGROUND Antipsychotics, including risperidone (RIS), are frequently indicated for various autism spectrum disorder (ASD) manifestations; however, "actionable" PGx testing in psychiatry regarding antipsychotic dosing and selection has limited applications in routine clinical practice because of the lack of standard guidelines, mostly due to the inconsistency and scarcity of genetic variant data. The current study is aimed at examining the association of RIS effectiveness, according to ABC-CV and CGI indexes, with relevant pharmacokinetics (PK) and pharmacodynamics (PD) genes. METHODS Eighty-nine ASD children who received a consistent RIS-based regimen for at least 8 weeks were included. The Axiom PharmacoFocus Array technique was employed to generate accurate star allele-predicted phenotypes of 3 PK genes (CYP3A4, CYP3A5, and CYP2D6). Genotype calls for 5 candidate PD receptor genes (DRD1, DRD2, DRD3, HTR2C, and HTR2A) were obtained and reported as wild type, heterozygous, or homozygous for 11 variants. RESULTS Based on the ABC total score, 42 (47.2%) children were classified as responders, while 47 (52.8%) were classified as nonresponders. Multivariate logistic regression analyses, adjusted for nongenetic factors, suggested nonsignificant impacts of the star allele-predicted phenotypes of all 3 PK genes on improvement in ASD symptoms or CGI scores. However, significant positive or negative associations of certain PD variants involved in dopaminergic and serotonergic pathways were observed with specific ASD core and noncore symptom subdomains. Our significant polymorphism findings, mainly those in DRD2 (rs1800497, rs1799978, and rs2734841), HTR2C (rs3813929), and HTR2A (rs6311), were largely consistent with earlier findings (predictors of RIS effectiveness in adult schizophrenia patients), confirming their validity for identifying ASD children with a greater likelihood of core symptom improvement compared to noncarriers/wild types. Other novel findings of this study, such as significant improvements in DRD3 rs167771 carriers, particularly in ABC total and lethargy/social withdrawal scores, and DRD1 rs1875964 homozygotes and DRD2 rs1079598 wild types in stereotypic behavior, warrant further verification in biochemical and clinical studies to confirm their feasibility for inclusion in a PGx panel. CONCLUSION In conclusion, we provide evidence of potential genetic markers involved in clinical response variability to RIS therapy in ASD children. However, replication in prospective samples with greater ethnic diversity and sample sizes is necessary.
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Affiliation(s)
- Sireen Abdul Rahim Shilbayeh
- Department of Pharmacy Practice, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia.
| | - Iman Sharaf Adeen
- Department of Pediatric Behavior and Development and Adolescent Medicine, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Ayman Shawqi Alhazmi
- Department of Pediatric Behavior and Development and Adolescent Medicine, King Saud Medical City, Riyadh, Saudi Arabia
| | - Haya Aljurayb
- Molecular Pathology Laboratory, Pathology and Clinical Laboratory Medicine Administration, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Rana Saad Altokhais
- Department of Pediatric Behavior and Development and Adolescent Medicine, King Fahad Medical City, Riyadh, Saudi Arabia
| | - Nourah Alhowaish
- Department of Prevention and Research, King Abdullah International Medical Research Center (KAIMRC), King Abdulaziz Medical City, Ministry of National Guard - Health Affairs, Riyadh, Saudi Arabia
| | - Khawlah Essa Aldilaijan
- Health Sciences Research Center, King Abdullah Bin Abdulaziz University Hospital, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
| | - Mostafa Kamal
- Department of Life Science Application Support, Gulf Scientific Corporation, Riyadh, Saudi Arabia
| | - Anwar Mansour Alnakhli
- Department of Pharmaceutical Sciences, College of Pharmacy, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
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10
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Cain P, Chejor P, Porock D. Chemical restraint as behavioural euthanasia: case studies from the Royal Commission into Aged Care Quality and Safety. BMC Geriatr 2023; 23:444. [PMID: 37468889 DOI: 10.1186/s12877-023-04116-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Accepted: 06/17/2023] [Indexed: 07/21/2023] Open
Abstract
BACKGROUND The prescription of psychotropic medication to older people living with dementia in residential aged care has become an increasing concern. The use of prescription medication is often prefaced as a way of preventing harm to self and others. However, the use of such medications has been considered a way of managing some of the behavioural and psychological symptoms of dementia. Using a large secondary data set, this study aimed to identify the precursors and mediating factors that influence the use of chemical restraint of older people in residential aged care. METHODS Publicly available documents from the Australian Royal Commission into Aged Care Quality and Safety were used as the data corpus for this study. Keywords were used to search over 7000 documents to extract a set of topic-related content. We identified the cases of seven people in respite or permanent residential aged care who had been prescribed or administered psychotropic medication under circumstances that appeared to demonstrate chemical restraint. All documents relating to the cases were collated for our data set. A descriptive case study approach to analysis was taken. RESULTS Four key descriptive patterns were identified: labelling and limits to tolerance, pushing prescription as a solution, coverups and avoiding consent, and family's fight for liberty. Triangulation across the data and academic literature supports the findings. CONCLUSION Our findings provide some insight into how chemical restrain happens. Featuring throughout the cases were reports of a lack of workforce capacity to care for and support residents exhibiting dementia behaviours. Prescription of psychotropic medications featured as a "first resort" care solution. Family and friends found such approaches to care unacceptable and frequently challenged the practice. Where consent for prescription was explicitly denied, more covert approaches are demonstrated. Family awareness, presence, and advocacy were key to challenging the practice of chemical restraint. Shortfalls in the capacity of the current workforce come into play here. However, workforce shortcomings can no longer mask this ubiquitous practice. Just as importantly the spotlight needs to be turned on the prescribers and the providers.
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Affiliation(s)
- Patricia Cain
- Centre for Research in Aged Care, School of Nursing and Midwifery, Edith Cowan University, 270 Joondalup Drive, 6027, Joondalup, WA, Australia.
| | - Pelden Chejor
- Centre for Research in Aged Care, School of Nursing and Midwifery, Edith Cowan University, 270 Joondalup Drive, 6027, Joondalup, WA, Australia
| | - Davina Porock
- Centre for Research in Aged Care, School of Nursing and Midwifery, Edith Cowan University, 270 Joondalup Drive, 6027, Joondalup, WA, Australia
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11
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Loi SM, Cations M, Velakoulis D. Young-onset dementia diagnosis, management and care: a narrative review. Med J Aust 2023; 218:182-189. [PMID: 36807325 PMCID: PMC10952480 DOI: 10.5694/mja2.51849] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2022] [Revised: 01/16/2023] [Accepted: 01/18/2023] [Indexed: 02/21/2023]
Abstract
Young-onset dementia comprises a heterogeneous range of dementias, with onset at less than 65 years of age. These include primary dementias such as Alzheimer disease, frontotemporal and vascular dementias; genetic/familial dementias; metabolic disorders; and secondary dementias such as those that result from alcohol use disorder, traumatic brain injury, and infections. The presentation of young-onset dementia is varied and may include cognitive, psychiatric and neurological symptoms. Diagnostic delay is common, with a frequent diagnostic conundrum being, "Is this young-onset dementia or is this psychiatric?". For assessment and accurate diagnosis, a thorough screen is recommended, such as collateral history and investigations such as neuroimaging, lumbar puncture, neuropsychology, and genetic testing. The management of young-onset dementia needs to be age-appropriate and multidisciplinary, with timely access to services and consideration of the family (including children).
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Affiliation(s)
- Samantha M Loi
- University of MelbourneMelbourneVIC
- Royal Melbourne HospitalMelbourneVIC
| | | | - Dennis Velakoulis
- University of MelbourneMelbourneVIC
- Royal Melbourne HospitalMelbourneVIC
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12
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Russo FA, Mallik A, Thomson Z, de Raadt St. James A, Dupuis K, Cohen D. Developing a music-based digital therapeutic to help manage the neuropsychiatric symptoms of dementia. Front Digit Health 2023; 5:1064115. [PMID: 36744277 PMCID: PMC9895844 DOI: 10.3389/fdgth.2023.1064115] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 01/02/2023] [Indexed: 01/22/2023] Open
Abstract
The greying of the world is leading to a rapid acceleration in both the healthcare costs and caregiver burden that are associated with dementia. There is an urgent need to develop new, easily scalable modalities of support. This perspective paper presents the theoretical background, rationale, and development plans for a music-based digital therapeutic to manage the neuropsychiatric symptoms of dementia, particularly agitation and anxiety. We begin by presenting the findings of a survey we conducted with key opinion leaders. The findings highlight the value of a music-based digital therapeutic for treating neuropsychiatric symptoms, particularly agitation and anxiety. We then consider the neural substrates of these neuropsychiatric symptoms before going on to evaluate randomized control trials on the efficacy of music-based interventions in their treatment. Finally, we present our development plans for the adaptation of an existing music-based digital therapeutic that was previously shown to be efficacious in the treatment of adult anxiety symptoms.
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Affiliation(s)
- Frank A. Russo
- Department of Psychology, Toronto Metropolitan University, Toronto, ON, Canada,KITE, Toronto Rehabilitation Institute, University Health Network, Toronto, ON, Canada,LUCID Inc., Toronto, ON, Canada,Correspondence: Frank A. Russo
| | | | | | | | - Kate Dupuis
- Center for Elder Research, Sheridan College, Oakville, ON, Canada
| | - Dan Cohen
- Right to Music, New York, NY, United States
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13
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Rodriguez G, Fisher DW, McClarty B, Montalvo-Ortiz J, Cui Q, Chan CS, Dong H. Histone deacetylase inhibitors mitigate antipsychotic risperidone-induced motor side effects in aged mice and in a mouse model of Alzheimer's disease. Front Psychiatry 2023; 13:1020831. [PMID: 36684015 PMCID: PMC9852991 DOI: 10.3389/fpsyt.2022.1020831] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Accepted: 12/12/2022] [Indexed: 01/07/2023] Open
Abstract
Antipsychotic drugs are still widely prescribed to control various severe neuropsychiatric symptoms in the elderly and dementia patients although they are off-label use in the United States. However, clinical practice shows greater side effects and lower efficacy of antipsychotics for this vulnerable population and the mechanisms surrounding this aged-related sensitivity are not well understood. Our previous studies have shown that aging-induced epigenetic alterations may be involved in the increasing severity of typical antipsychotic haloperidol induced side effects in aged mice. Still, it is unknown if similar epigenetic mechanisms extend to atypical antipsychotics, which are most often prescribed to dementia patients combined with severe neuropsychiatric symptoms. In this study, we report that atypical antipsychotic risperidone also causes increased motor side effect behaviors in aged mice and 5xFAD mice. Histone deacetylase (HDAC) inhibitor Valproic Acid and Entinostat can mitigate the risperidone induced motor side effects. We further showed besides D2R, reduced expression of 5-HT2A, one of the primary atypical antipsychotic targets in the striatum of aged mice that are also mitigated by HDAC inhibitors. Finally, we demonstrate that specific histone acetylation mark H3K27 is hypoacetylated at the 5htr2a and Drd2 promoters in aged mice and can be reversed with HDAC inhibitors. Our work here establishes evidence for a mechanism where aging reduces expression of 5-HT2A and D2R, the key atypical antipsychotic drug targets through epigenetic alteration. HDAC inhibitors can restore 5-HT2A and D2R expression in aged mice and decrease the motor side effects in aged and 5xFAD mice.
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Affiliation(s)
- Guadalupe Rodriguez
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Daniel W. Fisher
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
- Department of Psychiatry and Behavioral Sciences, University of Washington School of Medicine, Seattle, WA, United States
| | - Bryan McClarty
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Janitza Montalvo-Ortiz
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Qiaoling Cui
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - C. Savio Chan
- Department of Neuroscience, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
| | - Hongxin Dong
- Department of Psychiatry and Behavioral Sciences, Northwestern University Feinberg School of Medicine, Chicago, IL, United States
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14
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Agbomi LL, Onuoha CP, Nathaniel SI, Coker-Ayo OO, Bailey-Taylor MJ, Roley LT, Poupore N, Goodwin RL, Nathaniel TI. Gender differences in Parkinson's disease with dementia and dementia with Lewy bodies. AGING AND HEALTH RESEARCH 2022. [DOI: 10.1016/j.ahr.2022.100096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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15
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Herrmann N, Wang HJ, Song BX, Bawa KK, Lanctôt KL. Risks and benefits of current and novel drugs to treat agitation in Alzheimer's disease. Expert Opin Drug Saf 2022; 21:1289-1301. [PMID: 36252087 DOI: 10.1080/14740338.2022.2136162] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
INTRODUCTION At present, no pharmacological interventions have been approved for the treatment of agitation in Alzheimer's disease (AD), an important neuropsychiatric symptom that has been linked to increased mortality and greater caregiver burden. Antipsychotics offer some benefit, but increase the risk of adverse events such as falls, extrapyramidal symptoms, stroke, and mortality. Over the past 10 years, several new and repurposed medications have shown promise for treating AD-associated agitation. AREAS COVERED We review the risks and benefits of emerging therapies for agitation in AD, which include newer atypical antipsychotics, selective serotonin reuptake inhibitors, cannabinoids, and dextromethorphan combination products. Other drugs such as mirtazapine, prazosin, and lithium are also discussed. Clinicaltrials.gov, PubMed/MEDLINE, EMBASE and Cochrane Central databases were searched for relevant studies from 1 January 2012 to 1 May 2022. EXPERT OPINION At the present time, there are no pharmacological interventions for the treatment of agitation in AD whose benefits clearly outweigh their potential safety concerns. Therefore, management of agitation in AD should primarily be based on non-pharmacological approaches. When medications are considered necessary, they should only be initiated with the caregiver's appreciation of their risks and benefits and with careful and ongoing assessment of their safety.
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Affiliation(s)
- Nathan Herrmann
- Department of Psychiatry, Neuropsychopharmacology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada
| | - Hui Jue Wang
- Department of Psychiatry, Neuropsychopharmacology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Bing Xin Song
- Department of Psychiatry, Neuropsychopharmacology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Kritleen K Bawa
- Department of Psychiatry, Neuropsychopharmacology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Krista L Lanctôt
- Department of Psychiatry, Neuropsychopharmacology Research Group, Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada.,Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.,Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
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16
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Joshi A, Todd S, Finn DP, McClean PL, Wong-Lin K. Multi-dimensional relationships among dementia, depression and prescribed drugs in England and Wales hospitals. BMC Med Inform Decis Mak 2022; 22:262. [PMID: 36207697 PMCID: PMC9547465 DOI: 10.1186/s12911-022-01892-9] [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: 01/12/2021] [Accepted: 05/23/2022] [Indexed: 11/17/2022] Open
Abstract
Background Dementia is a group of symptoms that largely affects older people. The majority of patients face behavioural and psychological symptoms (BPSD) during the course of their illness. Alzheimer’s disease (AD) and vascular dementia (VaD) are two of the most prevalent types of dementia. Available medications provide symptomatic benefits and provide relief from BPSD and associated health issues. However, it is unclear how specific dementia, antidepressant, antipsychotic, antianxiety, and mood stabiliser drugs, used in the treatment of depression and dementia subtypes are prescribed in hospital admission, during hospital stay, and at the time of discharge. To address this, we apply multi-dimensional data analytical approaches to understand drug prescribing practices within hospitals in England and Wales. Methods We made use of the UK National Audit of Dementia (NAD) dataset and pre-processed the dataset. We evaluated the pairwise Pearson correlation of the dataset and selected key data features which are highly correlated with dementia subtypes. After that, we selected drug prescribing behaviours (e.g. specific medications at the time of admission, during the hospital stay, and upon discharge), drugs and disorders. Then to shed light on the relations across multiple features or dimensions, we carried out multiple regression analyses, considering the number of dementia, antidepressant, antipsychotic, antianxiety, mood stabiliser, and antiepileptic/anticonvulsant drug prescriptions as dependent variables, and the prescription of other drugs, number of patients with dementia subtypes (AD/VaD), and depression as independent variables. Results In terms of antidepressant drugs prescribed in hospital admission, during stay and discharge, the number of sertraline and venlafaxine prescriptions were associated with the number of VaD patients whilst the number of mirtazapine prescriptions was associated with frontotemporal dementia patients. During admission, the number of lamotrigine prescriptions was associated with frontotemporal dementia patients, and with the number of valproate and dosulepin prescriptions. During discharge, the number of mirtazapine prescriptions was associated with the number of donepezil prescriptions in conjunction with frontotemporal dementia patients. Finally, the number of prescriptions of donepezil/memantine at admission, during hospital stay and at discharge exhibited positive association with AD patients. Conclusion Our analyses reveal a complex, multifaceted set of interactions among prescribed drug types, dementia subtypes, and depression. Supplementary Information The online version contains supplementary material available at 10.1186/s12911-022-01892-9.
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Affiliation(s)
- Alok Joshi
- Intelligent Systems Research Centre, Ulster University, Magee Campus, Derry~Londonderry, Northern Ireland, UK. .,Department of Computer Science, University of Bath, Bath, UK.
| | - Stephen Todd
- Altnagelvin Area Hospital, Western Health and Social Care Trust, Derry~Londonderry, Northern Ireland, UK
| | - David P Finn
- Pharmacology and Therapeutics, School of Medicine, Galway Neuroscience Centre, National University of Ireland Galway, Galway, Ireland
| | - Paula L McClean
- Northern Ireland Centre for Stratified Medicine, Biomedical Sciences Research Institute, Ulster University, Magee Campus, Derry~Londonderry, Northern Ireland, UK
| | - KongFatt Wong-Lin
- Intelligent Systems Research Centre, Ulster University, Magee Campus, Derry~Londonderry, Northern Ireland, UK.
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17
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Polypharmacy in Treatment of Behavioral Issues in Dementia—Use of Atypical Antipsychotics. Clin Geriatr Med 2022; 38:641-652. [DOI: 10.1016/j.cger.2022.05.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Tampi RR, Jeste DV. Dementia Is More Than Memory Loss: Neuropsychiatric Symptoms of Dementia and Their Nonpharmacological and Pharmacological Management. Am J Psychiatry 2022; 179:528-543. [PMID: 35921394 DOI: 10.1176/appi.ajp.20220508] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Neuropsychiatric symptoms of dementia (NPS) are a group of noncognitive symptoms that occur in over 90% of individuals with dementia. NPS seem to result from a complex interaction among various biological, psychosocial, and environmental factors, and they are associated with greater morbidity and mortality, higher caregiver burden and burnout, high risk of nursing home placement, and increased cost of care for patients with dementia. Use of standardized assessment tools like the Neuropsychiatric Inventory can assist with qualifying and quantifying NPS. In this review, the authors evaluate the evidence for efficacy and safety of nonpharmacological and pharmacological interventions for treating NPS, mostly based on published meta-analyses. Commonly prescribed medications include atypical antipsychotics, acetylcholinesterase inhibitors, memantine, antidepressants, and mood stabilizers. There are also limited data on cannabinoids, repetitive transcranial magnetic stimulation, and ECT in individuals with NPS. Available evidence indicates that several nonpharmacological interventions are beneficial in the management of NPS and are recommended as first-line treatments. Pharmacotherapy should be reserved for the treatment of more severe or refractory NPS or where nonpharmacological management is not feasible. Atypical antipsychotics have shown mostly modest benefit in reducing NPS, and their use is limited by their adverse effect profiles. Recent investigations suggest potential strategies for preventing or at least reducing the risk of dementia and NPS. The authors conclude with brief guidelines for clinical practice as well as future research.
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Affiliation(s)
- Rajesh R Tampi
- Department of Psychiatry, Creighton University School of Medicine, Omaha (Tampi); Department of Psychiatry, Yale School of Medicine, New Haven, Conn. (Tampi); Department of Psychiatry, Department of Neurosciences, and Sam and Rose Stein Institute for Research on Aging, University of California San Diego, San Diego (Jeste)
| | - Dilip V Jeste
- Department of Psychiatry, Creighton University School of Medicine, Omaha (Tampi); Department of Psychiatry, Yale School of Medicine, New Haven, Conn. (Tampi); Department of Psychiatry, Department of Neurosciences, and Sam and Rose Stein Institute for Research on Aging, University of California San Diego, San Diego (Jeste)
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19
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Scuteri D, Sakurada S, Sakurada T, Tonin P, Bagetta G, Nicotera P, Corasaniti MT. Requirements for translation in clinical trials of aromatherapy: the case of the essential oil of bergamot (BEO) for the management of agitation in severe dementia. Curr Pharm Des 2022; 28:1607-1610. [DOI: 10.2174/1381612828666220509152029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 03/22/2022] [Indexed: 11/22/2022]
Abstract
Abstract:
Due to the tight link between undertreated pain and agitation in dementia patients, aromatherapy can be a useful approach if an essential oil (EO) with powerful analgesic activity is used. The methodological difficulties of most aromatherapy trials have not allowed any definitive conclusion about the effectiveness of aromatherapy in dementia. The objective of the present perspective is to illustrate the long rigorous process leading from preclinical research to clinical translation of the EO of bergamot (BEO) for the management of agitation in dementia. A nanotechnology-based delivery system consisting of odorless alpha-tocopheryl stearate solid lipid nanoparticles (SLN) loaded with EO of bergamot (BEO) (NanoBEO), has been proven active on acute and neuropathic pain models confirming the strong antinociceptive and anti-allodynic efficacy reported for BEO in preclinical studies. In particular, prolonged physicochemical stability of NanoBEO and titration in its main components are remarkable advantages allowing reproducible antinociceptive and anti-itch responses to be measured. Furthermore, the possibility to perform double-blind clinical trials, made impossible so far because of the strong smell of essential oils used in aromatherapy. Demented patients receive limited treatment for chronic pain, particularly neuropathic. The BRAINAID (NCT04321889) trial will assess the effectiveness of NanoBEO on agitation and pain in severely demented patients to offer a safe tool able to provide relief to this fragile population. This double-blind clinical trial will be the first to assess the efficacy and safety of an engineered essential oil and will provide the rationale for the safer treatment of neuropsychiatric symptoms of dementia and pain in clinic.
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Affiliation(s)
- Damiana Scuteri
- Pharmacotechnology Documentation and Transfer Unit, Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
- Regional Center for Serious Brain Injuries, S. Anna Institute, 88900 Crotone, Italy
| | - Shinobu Sakurada
- Department of Physiology and Anatomy, Tohoku Pharmaceutical University, 981-8558 Sendai, Japan
| | - Tsukasa Sakurada
- Department of Pharmacology, Daiichi University of Pharmacy, 815-8511 Fukuoka, Japan
| | - Paolo Tonin
- Regional Center for Serious Brain Injuries, S. Anna Institute, 88900 Crotone, Italy
| | - Giacinto Bagetta
- Pharmacotechnology Documentation and Transfer Unit, Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy
| | - Pierluigi Nicotera
- German Center for Neurodegenerative Diseases (DZNE), 53127 Bonn, Germany
- Department of Health Sciences, University 'Magna Graecia' of Catanzaro, 88100 Catanzaro, Italy
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20
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Dimitriou T, Papatriantafyllou J, Konsta A, Kazis D, Athanasiadis L, Ioannidis P, Koutsouraki E, Tegos T, Tsolaki M. Non-Pharmacological Interventions for Wandering/Aberrant Motor Behaviour in Patients with Dementia. Brain Sci 2022; 12:brainsci12020130. [PMID: 35203894 PMCID: PMC8869749 DOI: 10.3390/brainsci12020130] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 01/08/2022] [Accepted: 01/14/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Aberrant motor behaviour or wandering refers to aimless movement without a specific purpose. Wandering is common in patients with dementia and leads to early institutionalization and caregivers’ burden. Non-pharmacological interventions should be also considered as a first-line solution for the wandering because current pharmacological treatment has serious side-effects. Methods: A cross-over randomised controlled trial (RCT) with 60 participants of all stages and different types of dementia was conducted in Greece. The sample was randomly assigned in 6 different groups of 10 participants each. Every intervention lasted for 5 days, and there were 2 days as a wash-out period. There was no drop-out rate. The measurements used were the Mini Mental State Examination (MMSE), Addenbrooke’s Cognitive Examination Revised (ACE-R), Geriatric Depression Scale (GDS), Functional Rating Scale for Symptoms in Dementia (FRSSD), and Neuropsychiatric Inventory (NPI). The interventions that were evaluated were reminiscence therapy (RT), music therapy (MT), and physical exercise (PE). Results: NPI scores were reduced in the group receiving PE (p = 0.006). When MT (p = 0.018) follows PE, wandering symptoms are reduced further. RT should follow MT in order to reduce wandering more (p = 0.034). The same combination was effective for the caregivers’ burden as well; PE (p = 0.004), MT (p = 0.036), RT (p = 0.039). Conclusions: An effective combination that can reduce wandering symptoms in all stages and types of dementia was found: The best order was PH-MT-RT. The same combination in the same order reduced caregivers’ burden.
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Affiliation(s)
- Tatiana Dimitriou
- 1st Department of Neurology, Aristotle University of Thessaloniki, 44 Salaminos Street, Halandri, 15232 Athens, Greece
- Correspondence: ; Tel.: +30-6978-113357
| | - John Papatriantafyllou
- 3rd Age Center IASIS, 2nd Neurology Department, University of Athens, ‘Attikon’ Hospital, 73 Krimeas str., Glyfada, 16562 Athens, Greece;
| | - Anastasia Konsta
- 1st Department of Psychiatry, “Papageorgiou” General Hospital of Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.K.); (L.A.)
| | - Dimitrios Kazis
- 3rd Neurology Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (D.K.); (E.K.); (T.T.); (M.T.)
| | - Loukas Athanasiadis
- 1st Department of Psychiatry, “Papageorgiou” General Hospital of Thessaloniki, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (A.K.); (L.A.)
| | - Panagiotis Ioannidis
- 2nd Department of Neurology, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
| | - Efrosini Koutsouraki
- 3rd Neurology Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (D.K.); (E.K.); (T.T.); (M.T.)
| | - Thomas Tegos
- 3rd Neurology Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (D.K.); (E.K.); (T.T.); (M.T.)
| | - Magda Tsolaki
- 3rd Neurology Department, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece; (D.K.); (E.K.); (T.T.); (M.T.)
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21
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Scuteri D, Corasaniti MT, Tonin P, Nicotera P, Bagetta G. New trends in pharmacological control of neuropsychiatric symptoms of dementia. Curr Opin Pharmacol 2021; 61:69-76. [PMID: 34634603 DOI: 10.1016/j.coph.2021.09.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 01/15/2023]
Abstract
Abnormal neuronal and synaptic plasticity occurs in Alzheimer's disease (AD) and depression. The latter, particularly late-life, has been recognized as fundamental in the identification of at-risk prodromal stages of AD. The lack of disease-modifying drugs and the off-label use of antipsychotics and antidepressants for neuropsychiatric symptoms (NPSs) have caused a season of therapeutic inappropriateness. To date, the wealth of clinical trials investigating drugs, diverse for structure and mechanism of action, has failed to provide a cure for all the spectrums of NPSs. Psychedelics in microdosing afford promotion of neurogenesis and synaptic plasticity and, recently, have been considered a revolution for the management of depression endowed with faster action and an improved side effect profile than antidepressants. In the current scenario, therefore, the rapid-acting antidepressant esketamine could represent the first-in-class for treatment of NPSs, and this deserves to be demonstrated with an open-label clinical trial.
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Affiliation(s)
- Damiana Scuteri
- Pharmacotechnology Documentation and Transfer Unit, Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy; Regional Center for Serious Brain Injuries, S. Anna Institute, Crotone, Italy
| | | | - Paolo Tonin
- Regional Center for Serious Brain Injuries, S. Anna Institute, Crotone, Italy
| | | | - Giacinto Bagetta
- Pharmacotechnology Documentation and Transfer Unit, Preclinical and Translational Pharmacology, Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende, Italy.
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22
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Giménez-Llort L, Marin-Pardo D, Marazuela P, Hernández-Guillamón M. Survival Bias and Crosstalk between Chronological and Behavioral Age: Age- and Genotype-Sensitivity Tests Define Behavioral Signatures in Middle-Aged, Old, and Long-Lived Mice with Normal and AD-Associated Aging. Biomedicines 2021; 9:biomedicines9060636. [PMID: 34199476 PMCID: PMC8228433 DOI: 10.3390/biomedicines9060636] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 12/18/2022] Open
Abstract
New evidence refers to a high degree of heterogeneity in normal but also Alzheimer's disease (AD) clinical and temporal patterns, increased mortality, and the need to find specific end-of-life prognosticators. This heterogeneity is scarcely explored in very old male AD mice models due to their reduced survival. In the present work, using 915 (432 APP23 and 483 C57BL/6 littermates) mice, we confirmed the better survival curves in male than female APP23 mice and respective wildtypes, providing the chance to characterize behavioral signatures in middle-aged, old, and long-lived male animals. The sensitivity of a battery of seven paradigms for comprehensive screening of motor (activity and gait analysis), neuropsychiatric and cognitive symptoms was analyzed using a cohort of 56 animals, composed of 12-, 18- and 24-month-old male APP23 mice and wildtype littermates. Most variables analyzed detected age-related differences. However, variables related to coping with stress, thigmotaxis, frailty, gait, and poor cognition better discriminated the behavioral phenotype of male APP23 mice through the three old ages compared with controls. Most importantly, non-linear age- and genotype-dependent behavioral signatures were found in long-lived animals, suggesting crosstalk between chronological and biological/behavioral ages useful to study underlying mechanisms and distinct compensations through physiological and AD-associated aging.
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Affiliation(s)
- Lydia Giménez-Llort
- Institut de Neurociències, Universitat Autònoma de Barcelona, E-08193 Barcelona, Spain;
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, E-08193 Barcelona, Spain
- Correspondence: ; Tel.: +34-93-581-23-78
| | - Daniela Marin-Pardo
- Institut de Neurociències, Universitat Autònoma de Barcelona, E-08193 Barcelona, Spain;
- Department of Psychiatry and Forensic Medicine, School of Medicine, Universitat Autònoma de Barcelona, E-08193 Barcelona, Spain
| | - Paula Marazuela
- Vall d’Hebron Research Institute (VHIR), E-08035 Barcelona, Spain; (P.M.); (M.H.-G.)
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23
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Risperidone/Randomly Methylated β-Cyclodextrin Inclusion Complex-Compatibility Study with Pharmaceutical Excipients. Molecules 2021; 26:molecules26061690. [PMID: 33802960 PMCID: PMC8002621 DOI: 10.3390/molecules26061690] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Revised: 03/12/2021] [Accepted: 03/15/2021] [Indexed: 11/16/2022] Open
Abstract
Risperidone (RSP) is an atypical antipsychotic drug used in treating schizophrenia, behavioral, and psychological symptoms of dementia and irritability associated with autism. The drug substance is practically insoluble in water and exhibits high lipophilicity. It also presents incompatibilities with pharmaceutical excipients such as magnesium stearate, lactose, and cellulose microcrystalline. RSP encapsulation by randomly methylated β-cyclodextrin (RM-β-CD) was performed in order to enhance drug solubility and stability and improve its biopharmaceutical profile. The inclusion complex formation was evaluated using thermal methods, powder X-ray diffractometry (PXRD), universal-attenuated total reflectance Fourier transform infrared (UATR-FTIR), UV spectroscopy, and saturation solubility studies. The 1:1 stoichiometry ratio and the apparent stability constant of the inclusion complex were determined by means of the phase solubility method. The compatibility between the supramolecular adduct and pharmaceutical excipients starch, anhydrous lactose, magnesium stearate, and cellulose microcrystalline was studied employing thermoanalytical tools (TG-thermogravimetry/DTG-derivative thermogravimetry/HF-heat flow) and spectroscopic techniques (UATR-FTIR, PXRD). The compatibility study reveals that there are no interactions between the supramolecular adduct with starch, magnesium stearate, and cellulose microcrystalline, while incompatibility with anhydrous lactose is observed even under ambient conditions. The supramolecular adduct of RSP with RM-β-CD represents a valuable candidate for further research in developing new formulations with enhanced bioavailability and stability, and the results of this study allow a pertinent selection of three excipients that can be incorporated in solid dosage forms.
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Behavioral and Psychological Symptoms in Dementia (BPSD) and the Use of Antipsychotics. Pharmaceuticals (Basel) 2021; 14:ph14030246. [PMID: 33803277 PMCID: PMC8002184 DOI: 10.3390/ph14030246] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2021] [Revised: 03/02/2021] [Accepted: 03/04/2021] [Indexed: 12/19/2022] Open
Abstract
Dementia affects about 47 million people worldwide, number expected to exponentially increase within 30 years. Alzheimer’s disease (AD) is the most common dementia type, accounting on its own for almost 70% of all dementia cases. Behavioral and psychological symptoms (BPSD) frequently occur during the disease progression; to treat agitation, aggressiveness, delusions and hallucinations, the use of antipsychotic drugs should be limited, due to their safety issues. In this literature review regarding the use of antipsychotics for treating BPSD in dementia, the advantages and limitation of antipsychotic drugs have been evaluated. The available medications for the management of behavioral and psychological symptoms are the antipsychotics, classed into typical and atypical, depending on their action on dopamine and serotonin receptors. First generation, or typical, antipsychotics exhibit lack of tolerability and display a broad range of side effects such as sedation, anticholinergic effects and extrapyramidal symptoms. Atypical, or second generation, antipsychotics bind more selectively to dopamine receptors and simultaneously block serotonin receptors, resulting in higher tolerability. High attention should be paid to the management of therapy interruption or switch between antipsychotics, to limit the possible rebound effect. Several switching strategies may be adopted, and clinicians should “tailor” therapies, accounting for patients’ symptoms, comorbidities, polytherapies and frailty.
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25
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A comparison of the metabolic side-effects of the second-generation antipsychotic drugs risperidone and paliperidone in animal models. PLoS One 2021; 16:e0246211. [PMID: 33508013 PMCID: PMC7842964 DOI: 10.1371/journal.pone.0246211] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/14/2021] [Indexed: 12/29/2022] Open
Abstract
BACKGROUND The second generation antipsychotic drugs represent the most common form of pharmacotherapy for schizophrenia disorders. It is now well established that most of the second generation drugs cause metabolic side-effects. Risperidone and its active metabolite paliperidone (9-hydroxyrisperidone) are two commonly used antipsychotic drugs with moderate metabolic liability. However, there is a dearth of preclinical data that directly compares the metabolic effects of these two drugs, using sophisticated experimental procedures. The goal of the present study was to compare metabolic effects for each drug versus control animals. METHODS Adult female rats were acutely treated with either risperidone (0.1, 0.5, 1, 2, 6 mg/kg), paliperidone (0.1, 0.5, 1, 2, 6 mg/kg) or vehicle and subjected to the glucose tolerance test; plasma was collected to measure insulin levels to measure insulin resistance with HOMA-IR. Separate groups of rats were treated with either risperidone (1, 6 mg/kg), paliperidone (1, 6 mg/kg) or vehicle, and subjected to the hyperinsulinemic euglycemic clamp. RESULTS Fasting glucose levels were increased by all but the lowest dose of risperidone, but only with the highest dose of paliperidone. HOMA-IR increased for both drugs with all but the lowest dose, while the three highest doses decreased glucose tolerance for both drugs. Risperidone and paliperidone both exhibited dose-dependent decreases in the glucose infusion rate in the clamp, reflecting pronounced insulin resistance. CONCLUSIONS In preclinical models, both risperidone and paliperidone exhibited notable metabolic side-effects that were dose-dependent. Differences between the two were modest, and most notable as effects on fasting glucose.
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Abstract
PURPOSE OF REVIEW Postoperative delirium (POD) is one of the most severe complications after surgery.The consequences are dramatic: longer hospitalization, a doubling of mortality and almost all cases develop permanent, yet subtle, cognitive deficits specific to everyday life. Actually, no global guideline with standardized concepts of management exists. Advances in prevention, diagnosis and treatment can improve recognition and risk stratification of delirium and its consequences. RECENT FINDINGS Management of POD is a multiprofessional approach and consists of different parts: First, the detection of high-risk patients with a validated tool, preventive nonpharmacological concepts and an intraoperative anesthetic management plan that is individualized to the older patient (e.g. avoiding large swings in blood pressure, vigilance in maintaining normothermia, ensuring adequate analgesia and monitoring of anesthetic depth). In addition to preventive standards, treatment and diagnostic concepts must also be available, both pharmaceutical and nonpharmacological. SUMMARY Not every POD can be prevented. It is important to detect patients with high risk for POD and have standardized concepts of management. The most important predisposing risk factors are a higher age, preexisting cognitive deficits, multimorbidity and an associated prodelirious polypharmacy. In view of demographic change, the implementation of multidisciplinary approaches to pharmacological and nonpharmacological POD management is highly recommended.
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Encapsulation of Risperidone by Methylated β-Cyclodextrins: Physicochemical and Molecular Modeling Studies. Molecules 2020; 25:molecules25235694. [PMID: 33287127 PMCID: PMC7730204 DOI: 10.3390/molecules25235694] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Revised: 11/28/2020] [Accepted: 12/01/2020] [Indexed: 12/15/2022] Open
Abstract
Risperidone (RSP) is an atypical antipsychotic drug which acts as a potent antagonist of serotonin-2 (5TH2) and dopamine-2 (D2) receptors in the brain; it is used to treat schizophrenia, behavioral and psychological symptoms of dementia and irritability associated with autism. It is a poorly water soluble benzoxazole derivative with high lipophilicity. Supramolecular adducts between drug substance and two methylated β-cyclodextrins, namely heptakis(2,6-di-O-methyl)-β-cyclodextrin (DM-β-CD) and heptakis(2,3,6-tri-O-methyl)-β-cyclodextrin (TM-β-CD) were obtained in order to enhance RSP solubility and improve its biopharmaceutical profile. The inclusion complexes were evaluated by means of thermoanalytical methods (TG—thermogravimetry/DTG—derivative thermogravimetry/HF—heat flow), powder X-ray diffractometry (PXRD), universal-attenuated total reflectance Fourier transform infrared (UATR-FTIR), UV spectroscopy and saturation solubility studies. Job’s method was employed for the determination of the stoichiometry of the inclusion complexes, which was found to be 2:1 for both guest–host systems. Molecular modeling studies were carried out for an in-depth characterization of the interaction between drug substance and cyclodextrins (CDs). The physicochemical properties of the supramolecular systems differ from those of RSP, demonstrating the inclusion complex formation between drug and CDs. The RSP solubility was enhanced as a result of drug encapsulation in the CDs cavity, the higher increase being obtained with DM-β-CD as host; the guest–host system RSP/DM-β-CD can thus be a starting point for further research in developing new formulations containing RSP, with enhanced bioavailability.
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