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Sreeja V, Jose A, Patel S, Menon B, Athira KV, Chakravarty S. Pharmacogenetics of selective serotonin reuptake inhibitors (SSRI): A serotonin reuptake transporter (SERT)-based approach. Neurochem Int 2024; 173:105672. [PMID: 38157886 DOI: 10.1016/j.neuint.2023.105672] [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: 10/25/2023] [Revised: 12/12/2023] [Accepted: 12/27/2023] [Indexed: 01/03/2024]
Abstract
Neuropsychiatric disorders are considered to be the most common cause of disability worldwide. Serotonin and its transporter is a prominent paradigm in mood disorders. Response to selective serotonin reuptake inhibitors (SSRI) is altered due to heterogeneity in the serotonin transporter gene, SLC6A4 (solute carrier family 6 member 4). The reported polymorphisms are found to be in different regions of the transporter gene: promoter region (5-HTTLPR and various single nucleotide polymorphisms within it), intron (STin2), and exon 9 (I425V). The long and short alleles of the 5-HTTLPR gene, which are prevalent among variations, may mediate differential effects. In long allelic variant carriers, an increased response to SSRI and timely recovery is due to increased availability of SERT. Whereas, SERT availability is significantly decreased in short allelic carriers, necessitating a reduction in SSRI dosage due to the increased risk of adverse drug reactions. Thus, pharmacogenetic investigations are required to understand the impact of functional variations on the efficacy and tolerability of SSRI. Identifying the carrier variants may aid in clear-decision making of the treatment regimen, aiding the approach of personalized medication.
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Affiliation(s)
- V Sreeja
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - Anju Jose
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - Shashikant Patel
- Applied Biology Division, CSIR- Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India
| | - Bindu Menon
- Department of Psychiatry, Amrita School of Medicine, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India
| | - K V Athira
- Department of Pharmacology, Amrita School of Pharmacy, Amrita Vishwa Vidyapeetham, AIMS Health Sciences Campus, Kochi, 682 041, Kerala, India.
| | - Sumana Chakravarty
- Applied Biology Division, CSIR- Indian Institute of Chemical Technology, Tarnaka, Uppal Road, Hyderabad, 500007, Telangana, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, India.
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Cawthorpe DRL, Cohen D. Population-based affective-disorder-related biomedical/biophysical multi-hyper-morbidity across the lifespan: A 16-year population study. World J Psychiatry 2023; 13:423-434. [PMID: 37547734 PMCID: PMC10401504 DOI: 10.5498/wjp.v13.i7.423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 03/03/2023] [Accepted: 05/31/2023] [Indexed: 07/18/2023] Open
Abstract
BACKGROUND There are few if any life-span population-based studies of psychiatric disorder-associated biomedical and biophysical disorders and diseases (morbidity).
AIM To scope the present state of research regarding the biomedical and biophysical morbidity associated with affective and mental disorder in epidemiological samples, and to examine the life-span relationship between affective disorders and biomedical/biophysical disorders to illustrate a novel approach employing the odds ratio to represent the intensity of biomedical and biophysical morbidity associated in time in a population.
METHODS A repeatable systematic literature search of PubMed was represented in summary. Additionally, a regional population-based dataset was constructed and analyzed to represent the age- and sex-specific diagnoses (International Classification of Diseases Version 9, ICD-9) for those with and without affective disorder. The analysis presents a novel index of the relative age-specific frequency of life-span biomedical and biophysical diagnoses associated with affective disorder.
RESULTS The volume of biomedical and biophysical morbidity associated with mental disorder literature has increased, yet few studies measure comprehensive temporal hyper-morbidity (over-representation of diseases over time, either before or after the index diagnostic event) in populations. Further, there have been only a few population-based studies examining the morbidity associated with affective disorder and only one that examines the full diagnostic range of lifespan morbidity. Substantial differences arose between males and females with more females than males having greater frequencies of diagnoses. The age-specific distributions of the maximum proportional diagnosis frequency ratios for each sex illustrate the greatest diagnosis-specific differences when comparing the biomedical and biophysical diagnoses of those with and without affective disorder when the same diagnosis was represented in each grouping at the same age.
CONCLUSION Clinical research needs to focus on more than one or two comorbid biomedical or biophysical disorders at a time. Comprehensive population-based examination of the lifespan biomedical and biophysical multi-morbidity associated with affective disorder has the potential to directly inform clinical practice. Representing the proportional ratios of age-specific frequency of diagnoses for the full range of ICD-9 diagnoses is a novel analytical model. Diagnostic frequency appears a viable representation of a given disease state, such as affective disorder. Fortunately, the WPA has developed a global education section to better understand the biomedical and biophysical morbidity associated with all psychiatric disorders. This has been identified by the WPA as the psychiatric practice challenge of the 21st century.
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Affiliation(s)
- David R L Cawthorpe
- Community Health Sciences and Psychiatry, Cumming School of Medicine, Calgary T2N4N1, Alberta, Canada
| | - Dan Cohen
- Mental Health Organization North-Holland North, Utrecht University, Alkmaar 1811, North Holland, Netherlands
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Maxwell CJ, Maclagan LC, Harris DA, Wang X, Guan J, Marrie RA, Hogan DB, Austin PC, Vigod SN, Swartz RH, Bronskill SE. Incidence of neurological and psychiatric comorbidity over time: a population-based cohort study in Ontario, Canada. Age Ageing 2022; 51:6520504. [PMID: 35134841 DOI: 10.1093/ageing/afab277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/14/2021] [Indexed: 12/27/2022] Open
Abstract
INTRODUCTION Comprehensive, population-based investigations of the extent and temporality of associations between common neurological and psychiatric disorders are scarce. METHODS This retrospective cohort study used linked health administrative data for Ontarians aged 40-85 years on 1 April 2002, to estimate the adjusted rate of incident dementia, Parkinson's disease (PD), stroke or mood/anxiety disorder (over 14 years) according to the presence and time since diagnosis of a prior disorder. Sex differences in the cumulative incidence of a later disorder were also examined. RESULTS The cohort included 5,283,546 Ontarians (mean age 56.2 ± 12.1 years, 52% female). The rate of dementia was significantly higher for those with prior PD (adjusted hazard ratio [adjHR] 4.05, 95% confidence interval [CI] 3.99-4.11); stroke (adjHR 2.49, CI 2.47-2.52) and psychiatric disorder (adjHR 1.79, CI 1.78-1.80). The rate of PD was significantly higher for those with prior dementia (adjHR 2.23, CI 2.17-2.30) and psychiatric disorder (adjHR 1.77, CI 1.74-1.81). The rate of stroke was significantly higher among those with prior dementia (adjHR 1.56, CI 1.53-1.58). Prior dementia (adjHR 2.36, CI 2.33-2.39), PD (adjHR 1.80, CI 1.75-1.85) and stroke (adjHR 1.47, CI 1.45-1.49) were associated with a higher rate of an incident psychiatric disorder. Generally, associations were strongest in the 6 months following a prior diagnosis and demonstrated a J-shape relationship over time. Significant sex differences were evident in the absolute risks for several disorders. CONCLUSIONS The observed nature of bidirectional associations between these neurological and psychiatric disorders indicates opportunities for earlier diagnosis and interventions to improve patient care.
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Affiliation(s)
- Colleen J Maxwell
- Schools of Pharmacy and Public Health, Sciences University of Waterloo, Waterloo, Ontario, Canada
- ICES, Toronto, Ontario, Canada
| | | | - Daniel A Harris
- ICES, Toronto, Ontario, Canada
- Public Health Sciences, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | | | | | - Ruth Ann Marrie
- Departments of Internal Medicine and Community Health Sciences, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba, Canada
| | - David B Hogan
- Division of Geriatric Medicine, Department of Medicine, Cumming School of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - Peter C Austin
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management & Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
| | - Simone N Vigod
- ICES, Toronto, Ontario, Canada
- Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada
- Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Richard H Swartz
- ICES, Toronto, Ontario, Canada
- Department of Medicine (Neurology), Hurvitz Brain Sciences Program, Sunnybrook Health Sciences Centre, University of Toronto, Toronto, Ontario, Canada
| | - Susan E Bronskill
- ICES, Toronto, Ontario, Canada
- Institute of Health Policy, Management & Evaluation, Dalla Lana School of Public Health, University of Toronto, Toronto, Ontario, Canada
- Women’s College Research Institute, Women’s College Hospital, Toronto, Ontario, Canada
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Fiorillo A, Sartorius N. Mortality gap and physical comorbidity of people with severe mental disorders: the public health scandal. Ann Gen Psychiatry 2021; 20:52. [PMID: 34903254 PMCID: PMC8670051 DOI: 10.1186/s12991-021-00374-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 11/03/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Patients suffering from severe mental disorders, including schizophrenia, major depression and bipolar disorders, have a reduced life expectancy compared to the general population of up to 10-25 years. This mortality gap requires urgent actions from a public health perspective in order to be reduced. MAIN TEXT Factors associated with the high mortality rates in patients with severe mental disorders can be grouped into four groups: those related to the patients, to psychiatrists, to other non-psychiatrist medical doctors and to the healthcare system. Each of these factors should become the target of specific and dedicated interventions, in order to reduce the morbidity and mortality rate in patients with severe mental disorders. All these elements contribute to the neglect of physical comorbidity in patients with severe mental. In particular, the long-standing separation of psychiatry from other branches of medicine and the lack of specific training on this issue further contribute to the poor attention dedicated to management of physical comorbidities. Recently, several professional associations have invited national bodies regulating education of healthcare professionals to include the management of physical health of people with severe mental disorders in undergraduate and postgraduate educational programs. CONCLUSIONS The premature mortality in patients with severe mental disorders is a complex phenomenon resulting by the interaction of several protective and risk factors. Therefore, a multilevel approach is needed, in which the different stakeholders involved in health care provision establish workforces for the long-term management of physical and mental health conditions.
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Affiliation(s)
- Andrea Fiorillo
- Department of Psychiatry, University of Campania "L Vanvitelli", Naples, Italy.
| | - Norman Sartorius
- Association for the Improvement of Mental Health Programmes, Geneva, Switzerland
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McCaffrey E, Chang S, Farrelly G, Rahman A, Ritchie B, Goldade R, Cawthorpe D. The Economic Impact of Providing Evidence-Based Pediatric Mental Health Literacy Training to Primary Care Physicians. Psychiatry Investig 2021; 18:695-700. [PMID: 34340278 PMCID: PMC8328829 DOI: 10.30773/pi.2021.0014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 05/09/2021] [Indexed: 11/27/2022] Open
Abstract
OBJECTIVE This paper presents a review of the current state of child and adolescent mental health literacy and provides current evidence of the economic impact of a pediatric mental health literacy (MHL) training program. METHODS Employing a case-series-comparison design, physician referrals to urgent and specialized mental health services were linked with patient-specific information comparing referrals from MHL participants and non-participating physicians. The economic impact analysis was based on changes in the admitted referral frequency and lengths of stay for the MHL group, compared to themselves pretraining, and over the same time period compared to non-participating physicians. RESULTS Average scheduled ambulatory admission rates per physician remained constant for trained and untrained pre-post groups. Average scheduled ambulatory admission wait time and length of stay reduced significantly post-training for MHL-trained physicians compared to pre-training and untrained physicians. In addition to reductions in length of stay, the total bed costs saving for emergency/inpatients admission deferrals was $2,932,112 or about $20,000 per MHL-trained physician. CONCLUSION The estimated economic impact of the MHL training shows a substantial return on investment and supports wider implementation. The MHL training program should be a key feature of mental health reform strategies, as well as continuing and undergraduate medical education.
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Affiliation(s)
- Eden McCaffrey
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada
| | - Samuel Chang
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada.,Department of Psychiatry, The University of Calgary, Cumming School of Medicine, Calgary, Canada
| | - Geraldine Farrelly
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada.,Department of Psychiatry, The University of Calgary, Cumming School of Medicine, Calgary, Canada.,Department of Paediatrics, The University of Calgary, Cumming School of Medicine, Calgary, Canada
| | - Abdul Rahman
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada.,Department of Psychiatry, The University of Calgary, Cumming School of Medicine, Calgary, Canada
| | - Blair Ritchie
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada.,Department of Psychiatry, The University of Calgary, Cumming School of Medicine, Calgary, Canada
| | - Roxanne Goldade
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada.,Department of Psychiatry, The University of Calgary, Cumming School of Medicine, Calgary, Canada.,Department of Paediatrics, The University of Calgary, Cumming School of Medicine, Calgary, Canada
| | - David Cawthorpe
- Alberta Health Services, Child and Adolescent Addiction and Mental Health and Psychiatry Program, Calgary, Canada.,Department of Psychiatry, The University of Calgary, Cumming School of Medicine, Calgary, Canada.,Department of Community Health Sciences, The University of Calgary, Cumming School of Medicine, Calgary, Canada
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Cawthorpe D. A comparative epidemiology model for understanding mental morbidity and planning health system response to the COVID-19 pandemic. HEART AND MIND 2021. [DOI: 10.4103/hm.hm_60_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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