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Santos AVS, Cardoso DS, Takada SH, Echeverry MB. Prenatal exposition to haloperidol: A preclinical narrative review. Neurosci Biobehav Rev 2023; 155:105470. [PMID: 37984569 DOI: 10.1016/j.neubiorev.2023.105470] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2023] [Revised: 11/13/2023] [Accepted: 11/14/2023] [Indexed: 11/22/2023]
Abstract
Pre-existing maternal mental disorders may affect the early interactions between mother and baby, impacting the child's psychoemotional development. The typical antipsychotic haloperidol can be used during pregnancy, even with some restrictions. Its prescription is not limited to psychotic disorders, but also to other psychiatric conditions of high incidence and prevalence in the woman's fertile period. The present review focused on the preclinical available data regarding the biological and behavioral implications of embryonic exposure to haloperidol. The understanding of the effects of psychotropic drugs during neurodevelopment is important for its clinical aspect since there is limited evidence regarding the risks of antipsychotic drug treatment in pregnant women and their children. Moreover, a better comprehension of the mechanistic events that can be affected by antipsychotic treatment during the critical period of neurodevelopment may offer insights into the pathophysiology of neurodevelopmental disorders. The findings presented in this review converge to the existence of several risks associated with prenatal exposure to such medication and emphasize the need for further studies regarding its dimensions.
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Affiliation(s)
- Aline Valéria Sousa Santos
- Laboratory of Neuropharmacology and Motor Behavior, Center for Mathematics, Computation, and Cognition, Federal University of ABC, São Bernardo do Campo, SP, Brazil
| | - Débora Sterzeck Cardoso
- Neurogenetics Laboratory, Center for Mathematics, Computation, and Cognition, Federal University of ABC, São Bernardo do Campo, SP, Brazil
| | - Silvia Honda Takada
- Neurogenetics Laboratory, Center for Mathematics, Computation, and Cognition, Federal University of ABC, São Bernardo do Campo, SP, Brazil
| | - Marcela Bermúdez Echeverry
- Laboratory of Neuropharmacology and Motor Behavior, Center for Mathematics, Computation, and Cognition, Federal University of ABC, São Bernardo do Campo, SP, Brazil; Neuroscience Laboratory, School of Medicine, Universidad de Santander (UDES), Bucaramanga, Santander, Colombia.
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Alsanie WF, Abdelrahman S, Alhomrani M, Gaber A, Alosimi EA, Habeeballah H, Alkhatabi HA, Felimban RI, Hauser CAE, Tayeb HH, Alamri AS, Alamri A, Raafat BM, Alswat KA, Althobaiti YS, Asiri YA. The Influence of Prenatal Exposure to Quetiapine Fumarate on the Development of Dopaminergic Neurons in the Ventral Midbrain of Mouse Embryos. Int J Mol Sci 2022; 23:ijms232012352. [PMID: 36293205 PMCID: PMC9603924 DOI: 10.3390/ijms232012352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2022] [Revised: 10/07/2022] [Accepted: 10/12/2022] [Indexed: 11/06/2022] Open
Abstract
The effects of second-generation antipsychotics on prenatal neurodevelopment, apoptotic neurodegeneration, and postnatal developmental delays have been poorly investigated. Even at standard doses, the use of quetiapine fumarate (QEPF) in pregnant women might be detrimental to fetal development. We used primary mouse embryonic neurons to evaluate the disruption of morphogenesis and differentiation of ventral midbrain (VM) neurons after exposure to QEPF. The dopaminergic VM neurons were deliberately targeted due to their roles in cognition, motor activity, and behavior. The results revealed that exposure to QEPF during early brain development decreased the effects of the dopaminergic lineage-related genes Tyrosine hydroxylase(Th), Dopamine receptor D1 (Drd1), Dopamine transporter (Dat), LIM homeobox transcription factor 1 alfa (Lmx1a), and Cell adhesion molecule L1 (Chl1), and the senescent dopaminergic gene Pituitary homeobox 3 (Pitx3). In contrast, Brain derived neurotrophic factor (Bdnf) and Nuclear receptor-related 1 (Nurr1) expressions were significantly upregulated. Interestingly, QEPF had variable effects on the development of non-dopaminergic neurons in VM. An optimal dose of QEPF (10 µM) was found to insignificantly affect the viability of neurons isolated from the VM. It also instigated a non-significant reduction in adenosine triphosphate formation in these neuronal populations. Exposure to QEPF during the early stages of brain development could also hinder the formation of VM and their structural phenotypes. These findings could aid therapeutic decision-making when prescribing 2nd generation antipsychotics in pregnant populations.
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Affiliation(s)
- Walaa F. Alsanie
- Department of Clinical Laboratories Sciences, The Faculty of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Correspondence:
| | - Sherin Abdelrahman
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah 23955, Saudi Arabia
| | - Majid Alhomrani
- Department of Clinical Laboratories Sciences, The Faculty of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ahmed Gaber
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Department of Biology, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Ebtisam Abdulah Alosimi
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Hamza Habeeballah
- Department of Medical Laboratory Technology, Faculty of Applied Medical Sciences in Rabigh, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Heba A. Alkhatabi
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Excellence in Genomic Medicine Research (CEGMR), King Abdulaziz University, Jeddah 21589, Saudi Arabia
- King Fahd Medical Research Centre, Hematology Research Unit, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Raed I. Felimban
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Center of Innovation in Personalized Medicine (CIPM), 3D Bioprinting Unit, King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Charlotte A. E. Hauser
- Laboratory for Nanomedicine, Division of Biological and Environmental Science and Engineering (BESE), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah 23955, Saudi Arabia
- Computational Bioscience Research Center (CBRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Jeddah 23955, Saudi Arabia
| | - Hossam H. Tayeb
- Department of Medical Laboratory Sciences, Faculty of Applied Medical Sciences, King Abdulaziz University, Jeddah 21589, Saudi Arabia
- Nanomedicine Unit, Center of Innovation in Personalized Medicine (CIPM), King Abdulaziz University, Jeddah 21589, Saudi Arabia
| | - Abdulhakeem S. Alamri
- Department of Clinical Laboratories Sciences, The Faculty of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Centre of Biomedical Sciences Research (CBSR), Deanship of Scientific Research, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Abdulwahab Alamri
- Department of Pharmacology and Toxicology, College of Pharmacy, University of Hail, Hail 55211, Saudi Arabia
| | - Bassem M. Raafat
- Department of Radiological Sciences, College of Applied Medical Sciences, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Khaled A. Alswat
- Department of Internal Medicine, School of Medicine, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Yusuf S. Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
- Addiction and Neuroscience Research Unit, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
| | - Yousif A. Asiri
- Department of Clinical Pharmacy, College of Pharmacy, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
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Wang H, Li JT, Zhang Y, Liu R, Wang XD, Si TM, Su YA. Prenatal Exposure to Antipsychotics Disrupts the Plasticity of Dentate Neurons and Memory in Adult Male Mice. Int J Neuropsychopharmacol 2018; 22:71-82. [PMID: 30169628 PMCID: PMC6313132 DOI: 10.1093/ijnp/pyy073] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Accepted: 08/20/2018] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND With the growing use of second-generation antipsychotics for the treatment of a spectrum of psychiatric illnesses in pregnancy, concerns have been raised about the long-term impact of these medications on offspring neurodevelopment. However, preclinical and clinical evidence on the lasting effects of prenatal antipsychotic exposure is still sparse. METHODS Risperidone, a widely used second-generation antipsychotic, and haloperidol, a representative first-generation antipsychotic, were administered to pregnant C57BL/6N mice from embryonic day 6 to 16. Behavioral tests, immunohistochemical staining, Golgi-Cox technique, and western blot were used to determine the effects of prenatal antipsychotic exposure on the plasticity of the dentate gyrus and related behavior in adult male mice. RESULTS Both prenatal haloperidol- and risperidone-exposed mice showed recognition memory deficits but had no anxiety-related behavior. In addition, both prenatal haloperidol and risperidone exposure impaired the proliferation and maturation of adult-born dentate granule cells. We found that haloperidol exposure decreased dendritic length of dentate granule cells, while risperidone had no effect. However, both drugs inhibited dendrite branching in granule cells. Haloperidol exposure also significantly reduced total spine density in the middle dendritic segment of dentate gyrus. Prenatally risperidone-exposed mice only displayed a loss in thin and mushroom spines of infrapyramidal blade of dentate gyrus. Collectively, prenatal haloperidol exposure exerted more robust negative effects than risperidone. CONCLUSION These data provide evidence for the long-term programming effects of early-life exposure to antipsychotics on hippocampal plasticity and behavior.
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Affiliation(s)
- Han Wang
- Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health, (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Ji-Tao Li
- Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health, (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Yue Zhang
- Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health, (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Rui Liu
- Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health, (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China
| | - Xiao-Dong Wang
- Department of Neurobiology, Key Laboratory of Medical Neurobiology of Ministry of Health of China,Zhejiang Province Key Laboratory of Neurobiology, Zhejiang University School of Medicine, Hangzhou, China
| | - Tian-Mei Si
- Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health, (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China,Correspondence: Yun-Ai Su, PhD, MD () and Tian-Mei Si (), Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University), and National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing 100191, China
| | - Yun-Ai Su
- Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health, (Peking University) & National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing, China,Correspondence: Yun-Ai Su, PhD, MD () and Tian-Mei Si (), Peking University Sixth Hospital & Peking University Institute of Mental Health & Key Laboratory of Mental Health, Ministry of Health (Peking University), and National Clinical Research Center for Mental Disorders, Peking University Sixth Hospital, Beijing 100191, China
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Singh K, Singh MK, Singh M. Effects of prenatal exposure to antipsychotic risperidone on developmental neurotoxicity, apoptotic neurodegeneration and neurobehavioral sequelae in rat offspring. Int J Dev Neurosci 2016; 52:13-23. [DOI: 10.1016/j.ijdevneu.2016.05.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2016] [Revised: 05/06/2016] [Accepted: 05/12/2016] [Indexed: 01/18/2023] Open
Affiliation(s)
- K.P. Singh
- Neurobiology Lab.Department of ZoologyUniversity of AllahabadAllahabad211 002India
| | - Manoj Kr. Singh
- Neurobiology Lab.Department of ZoologyUniversity of AllahabadAllahabad211 002India
| | - Manish Singh
- Institute of Nanoscience and TechnologyMohaliIndia
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Prenatal exposure to a novel antipsychotic quetiapine: Impact on neuro‐architecture, apoptotic neurodegeneration in fetal hippocampus and cognitive impairment in young rats. Int J Dev Neurosci 2015; 42:59-67. [DOI: 10.1016/j.ijdevneu.2015.02.011] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Revised: 01/31/2015] [Accepted: 02/21/2015] [Indexed: 01/28/2023] Open
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Abbott CC, Jaramillo A, Wilcox CE, Hamilton DA. Antipsychotic drug effects in schizophrenia: a review of longitudinal FMRI investigations and neural interpretations. Curr Med Chem 2014; 20:428-37. [PMID: 23157635 DOI: 10.2174/0929867311320030014] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2012] [Revised: 09/10/2012] [Accepted: 09/26/2012] [Indexed: 12/11/2022]
Abstract
The evidence that antipsychotics improve brain function and reduce symptoms in schizophrenia is unmistakable, but how antipsychotics change brain function is poorly understood, especially within neuronal systems. In this review, we investigated the hypothesized normalization of the functional magnetic resonance imaging (fMRI) blood oxygen level dependent signal in the context of antipsychotic treatment. First, we conducted a systematic PubMed search to identify eight fMRI investigations that met the following inclusion criteria: case-control, longitudinal design; pre- and post-treatment contrasts with a healthy comparison group; and antipsychotic-free or antipsychotic-naive patients with schizophrenia at the start of the investigation. We hypothesized that aberrant activation patterns or connectivity between patients with schizophrenia and healthy comparisons at the first imaging assessment would no longer be apparent or "normalize" at the second imaging assessment. The included studies differed by analysis method and fMRI task but demonstrated normalization of fMRI activation or connectivity during the treatment interval. Second, we reviewed putative mechanisms from animal studies that support normalization of the BOLD signal in schizophrenia. We provided several neuronal-based interpretations of these changes of the BOLD signal that may be attributable to long-term antipsychotic administration.
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Affiliation(s)
- C C Abbott
- Department of Psychiatry, University of New Mexico School of Medicine, Albuquerque, NM 87131, USA.
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Soiza-Reilly M, Azcurra JM. Activity-dependent reduction of dopamine D2 receptors during a postnatal critical period of plasticity in rat striatum is not affected by prenatal haloperidol treatment. Int J Dev Neurosci 2011; 29:855-60. [PMID: 21856408 DOI: 10.1016/j.ijdevneu.2011.08.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2011] [Revised: 07/08/2011] [Accepted: 08/03/2011] [Indexed: 11/19/2022] Open
Abstract
Motor activity induced in the Circling Training test (CT) during a postnatal (PN) critical period of plasticity (PN30-37) produces a long-lasting decrease in the number of binding sites and mRNA expression levels of the dopamine D2 receptor (D2R) in rat striatum. Prenatal exposure to the antipsychotic haloperidol also decreases postnatal levels of the striatal D2R in the offspring. We examined whether such fetal exposure to haloperidol could affect the activity-dependent reduction of the D2R system during the critical period. Half of the male offspring exposed to either haloperidol (2.5 mg/kg/day), i.p.) or saline during gestational days 5-18 were subjected to the CT during the critical period, while the remaining represented CT control animals. The adult number of binding sites and mRNA expression levels of the striatal D2R at PN90 were not changed by prenatal haloperidol treatment alone. On the other hand, only pups subjected to the CT during the critical period showed decreases in both studied parameters, regardless the prenatal treatment. These findings indicated that the postnatal reduction of the striatal D2R binding induced prenatally by haloperidol does not affect long-lasting activity-dependent plastic changes on the same receptor system elicited by motor activity in an ontogenetic critical period of plasticity in rat striatum.
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Affiliation(s)
- Mariano Soiza-Reilly
- Laboratorio de Biología Celular, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160 (C1428EGA), Buenos Aires, Argentina.
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Frost DO, Page SC, Carroll C, Kolb B. Early exposure to haloperidol or olanzapine induces long-term alterations of dendritic form. Synapse 2010; 64:191-9. [PMID: 19862684 PMCID: PMC2807476 DOI: 10.1002/syn.20715] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Exposure of the developing brain to a wide variety of drugs of abuse (e.g., stimulants, opioids, ethanol, etc.) can induce life-long changes in behavior and neural circuitry. However, the long-term effects of exposure to therapeutic, psychotropic drugs have only recently begun to be appreciated. Antipsychotic drugs are little studied in this regard. Here, we quantitatively analyzed dendritic architecture in adult mice treated with paradigmatic typical- (haloperidol) or atypical (olanzapine) antipsychotic drugs at developmental stages corresponding to fetal or fetal plus early childhood stages in humans. In layer 3 pyramidal cells of the medial and orbital prefrontal cortices and the parietal cortex and in spiny neurons of the core of the nucleus accumbens, both drugs induced significant changes (predominantly reductions) in the amount and complexity of dendritic arbor and the density of dendritic spines. The drug-induced plasticity of dendritic architecture suggests changes in patterns of neuronal connectivity in multiple brain regions that are likely to be functionally significant.
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Affiliation(s)
- Douglas O Frost
- Department of Pharmacology and Experimental Therapeutics, University of Maryland School of Medicine, 655 West Baltimore St., Baltimore, MD 21201, USA.
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Previc FH. Prenatal influences on brain dopamine and their relevance to the rising incidence of autism. Med Hypotheses 2006; 68:46-60. [PMID: 16959433 DOI: 10.1016/j.mehy.2006.06.041] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2006] [Revised: 06/17/2006] [Accepted: 06/19/2006] [Indexed: 10/24/2022]
Abstract
The incidence of autism has risen 10-fold since the early 1980s, with most of this rise not explainable by changing diagnostic criteria. The rise in autism is paradoxical in that autism is considered to be one of the most genetically determined of the major neurodevelopmental disorders and should accordingly either be stable or even declining. Because a variety of epigenetic influences, particularly those occurring during the prenatal period, can override or masquerade as genetic influences, these should be considered as prime contributors to the recent increase of autism. Prenatal influences on dopamine activity are especially well-documented, including the effects of maternal psychosocial stress, maternal fever, maternal genetic and hormonal status, use of certain medications, urban birth, and fetal hypoxia. All of these factors have been implicated in the genesis of autism, which is characterized by a "hyperdopaminergic" state based on evidence from monkey and human behavioral studies, pharmacological studies in humans, and a left-hemispheric predominance of both dopamine and autistic-like symptoms. Chronically high maternal levels of dopamine caused by the pressures of increasingly urbanized societies and by changing maternal demographics such as increased workforce participation, educational achievement level, and age at first birth, may be especially significant epigenetic contributors to the recent autism rise.
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Tavakoli-Nezhad M, Pitts DK. Postnatal Inorganic Lead Exposure Reduces Midbrain Dopaminergic Impulse Flow and Decreases Dopamine D1 Receptor Sensitivity in Nucleus Accumbens Neurons. J Pharmacol Exp Ther 2004; 312:1280-8. [PMID: 15550573 DOI: 10.1124/jpet.104.076166] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
Lead treatment via drinking water for 3 to 6 weeks at 250 ppm was found to significantly decrease the number of spontaneously active dopamine (DA) neurons in both the substantia nigra and ventral tegmental area that were recorded using standard extracellular electrophysiological recording techniques. Lead exposure did not affect the discharge rate or discharge pattern of these DA neurons. No significant decrease in the number of tyrosine hydroxylase immunopositive cells was detected in lead-treated animals relative to controls even though the length of lead exposure was extended beyond that of the electrophysiological studies. The significant lead-induced decrease in spontaneously active cells observed in the electrophysiological studies was, therefore, not due to cell death. An acute drug challenge with the DA receptor agonist apomorphine at a dose known to hyperpolarize midbrain DA neurons (50 mug/kg i.v.) was used to determine whether hyperpolarization would normalize the number of spontaneously active DA neurons. The results suggest that depolarization inactivation was most likely not the cause for this lead effect. The D(1) receptor agonist SKF-38393 [1-phenyl-2,3,4,5-tetrahydro-(1H)-3-benzazepine-7,8-diol] was iontophoretically applied to type I nucleus accumbens (Nacb) neurons. The results demonstrated that type I Nacb neurons have a significantly lower basal discharge rate in lead-treated animals relative to controls and that the Nacb DA D(1) receptors were significantly less sensitive to SKF-38393 in the lead-treated animals. Therefore, lead exposure decreases DA neuron impulse flow presynaptically and decreases DA D(1) receptor sensitivity postsynaptically in the nucleus accumbens.
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Affiliation(s)
- Mahboubeh Tavakoli-Nezhad
- Dept. Pharmaceutical Sciences, College of Pharmacy and Health Sciences, Wayne State University, 259 Mack Ave., Detroit, MI 48202, USA
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Costa LG, Steardo L, Cuomo V. Structural Effects and Neurofunctional Sequelae of Developmental Exposure to Psychotherapeutic Drugs: Experimental and Clinical Aspects. Pharmacol Rev 2004; 56:103-47. [PMID: 15001664 DOI: 10.1124/pr.56.1.5] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
The advent of psychotherapeutic drugs has enabled management of mental illness and other neurological problems such as epilepsy in the general population, without requiring hospitalization. The success of these drugs in controlling symptoms has led to their widespread use in the vulnerable population of pregnant women as well, where the potential embryotoxicity of the drugs has to be weighed against the potential problems of the maternal neurological state. This review focuses on the developmental toxicity and neurotoxicity of five broad categories of widely available psychotherapeutic drugs: the neuroleptics, the antiepileptics, the antidepressants, the anxiolytics and mood stabilizers, and a newly emerging class of nonprescription drugs, the herbal remedies. A brief review of nervous system development during gestation and following parturition in mammals is provided, with a description of the development of neurochemical pathways that may be involved in the action of the psychotherapeutic agents. A thorough discussion of animal research and human clinical studies is used to determine the risk associated with the use of each drug category. The potential risks to the fetus, as demonstrated in well described neurotoxicity studies in animals, are contrasted with the often negative findings in the still limited human studies. The potential risk fo the human fetus in the continued use of these chemicals without more adequate research is also addressed. The direction of future research using psychotherapeutic drugs should more closely parallel the methodology developed in the animal laboratories, especially since these models have already been used extremely successfully in specific instances in the investigation of neurotoxic agents.
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Affiliation(s)
- Lucio G Costa
- Department of Pharmacology and Human Physiology, University of Bari Medical School, Italy
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Singh KP, Singh M. Effect of prenatal haloperidol exposure on behavioral alterations in rats. Neurotoxicol Teratol 2002; 24:497-502. [PMID: 12127895 DOI: 10.1016/s0892-0362(02)00189-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Pregnant Charles-Foster rats were exposed to haloperidol (HAL), a neuroleptic drug that binds to and blocks dopamine (DA) receptor subtypes at a dose of 2.5 mg/kg body weight (intraperitoneally) from Gestation Day (GD) 12 to 20. The animals from both treated as well as vehicle control groups were allowed to deliver on GD 21. The offspring culled at birth on the basis of sex and weight were subjected to behavioral tests at the age of 8 weeks. The HAL-treated rat offspring showed a significant increase in anxiogenic behavior on the open field, elevated plus-maze and elevated zero-maze tests when compared with the vehicle-treated (control) rat offspring of the same age group. These findings suggest that prenatal exposure to HAL during a critical period of brain development leaves a lasting imprint on the brain, resulting in abnormal anxiety states, possibly through dopaminergic neurotransmission mechanisms.
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Affiliation(s)
- K P Singh
- Department of Zoology, University of Allahabad, India.
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Tavakoli-Nezhad M, Barron AJ, Pitts DK. Postnatal inorganic lead exposure decreases the number of spontaneously active midbrain dopamine neurons in the rat. Neurotoxicology 2001; 22:259-69. [PMID: 11405257 DOI: 10.1016/s0161-813x(01)00010-9] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study examined the effect of lead (Pb) exposure during postnatal development on the electrophysiological activity of midbrain dopamine (DA)-containing neurons. Single-cell electrophysiological recordings were made in the substantia nigra (SN) and ventral tegmental area (VTA) of chloral hydrate anesthetized rats. In this post-weaning exposure protocol 22-day-old male Sprague-Dawley rats were exposed to Pb- (100, 250, and 500 ppm) or Na-acetate in the drinking water for a period ranging from 3 to 6 weeks. Animals were exposed up to the day of electrophysiological recording. One Pb- and one Na-treated animal were recorded each experimental day. The post-weaning exposure protocol used in this study resulted in a significant Pb-dependent decrease in the number of spontaneously active DA neurons at the time of electrophysiological recording. Analysis of covariance, using duration of exposure as the covariate (i.e. 3, 4, 5, or 6 weeks), did not indicate that there was a consistent relationship between exposure duration and the number of spontaneously active DA neurons. However, the effect of Pb was dependent on the level of Pb exposure through the drinking water. At the 250 and 500 ppm level of exposure, Pb produced a significant decrease in the number of spontaneously active DA neurons in both anatomical regions. The number of active DA neurons was not significantly affected by the 100 ppm Pb treatment over the 3-6 weeks exposure period. The average discharge rate, and the percentage of spontaneously active DA neurons classified as having discharge patterns with bursts (i.e. 'bursting DA neurons'), was not changed at any of the three levels of Pb exposure. Based on results obtained from electrophysiological studies, the effect of selected Pb exposure levels, 250 and 500 ppm, were examined during the postnatal period using tyrosine hydroxylase (TH) immuno-histochemistry to determine if Pb affects the survival of dopamine neurons within SN and VTA. TH immuno-histochemical studies revealed that the reduction in the number of spontaneously active DA neurons in animals treated with 250 and 500 ppm Pb was probably not related to the physical loss of cells (e.g. necrosis or apoptosis).
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Affiliation(s)
- M Tavakoli-Nezhad
- Department of Pharmaceutical Sciences, College of Pharmacy and Allied Health Professions, Wayne State University, Detroit, MI 48202, USA
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Abstract
A general theory is proposed that attributes the origins of human intelligence to an expansion of dopaminergic systems in human cognition. Dopamine is postulated to be the key neurotransmitter regulating six predominantly left-hemispheric cognitive skills critical to human language and thought: motor planning, working memory, cognitive flexibility, abstract reasoning, temporal analysis/sequencing, and generativity. A dopaminergic expansion during early hominid evolution could have enabled successful chase-hunting in the savannas of sub-Saharan Africa, given the critical role of dopamine in counteracting hyperthermia during endurance activity. In turn, changes in physical activity and diet may have further increased cortical dopamine levels by augmenting tyrosine and its conversion to dopamine in the central nervous system (CNS). By means of the regulatory action of dopamine and other substances, the physiological and dietary changes may have contributed to the vertical elongation of the body, increased brain size, and increased cortical convolutedness that occurred during human evolution. Finally, emphasizing the role of dopamine in human intelligence may offer a new perspective on the advanced cognitive reasoning skills in nonprimate lineages such as cetaceans and avians, whose cortical anatomy differs radically from that of primates.
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Affiliation(s)
- F H Previc
- Flight Stress Protection Division, Brooks Air Force Base, Texas. fred.
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Shen RY, Hannigan JH, Kapatos G. Prenatal Ethanol Reduces the Activity of Adult Midbrain Dopamine Neurons. Alcohol Clin Exp Res 1999. [DOI: 10.1111/j.1530-0277.1999.tb04076.x] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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