Cited by 92Schizophrenia research and treatmentNeurotransmitter Receptor Influence on BehaviorParkinson's Disease Mechanisms and Treatments

Antipsychotic-Induced Metabolic and Cardiovascular Side Effects in Schizophrenia: A Novel Mechanistic Hypothesis

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Scigliano, Giulio, Ronchetti, Gabriele·2013·CNS Drugs

Abstract

The use of antipsychotics is hindered by the frequent occurrence of metabolic and cardiovascular side effects, resulting in worsened quality of life and greater mortality as a result of cardiovascular and cerebrovascular disorders in schizophrenia patients than the comparable general population. The various antipsychotics induce extrapyramidal symptoms, impaired glucose and lipid metabolism, weight gain, hypertension and arrhythmias, with variable frequency. Second-generation antipsychotics appear to have several advantages over first-generation antipsychotics, including a claimed better action on cognitive function and the negative symptoms of schizophrenia, and lower frequency of extrapyramidal side effects; however, their use is associated with a greater frequency of metabolic and cardiovascular disturbances. The mechanisms of these important side effects are not well understood, and generic approaches (psychoeducational programmes and symptomatic therapies) have been proposed to limit their severity. Extensive data from the literature indicate that autonomic nervous system dysfunction--intrinsic to schizophrenia and strongly exacerbated by antipsychotic treatment--is the cause of the pervasive metabolic and vascular dysfunctions associated with schizophrenia. In this article, we marshal further literature data to argue that the metabolic and cardiovascular side effects of antipsychotics are primarily mediated by their ability to block peripheral dopamine receptors, which physiologically modulate sympathetic activity. We also propose that these effects might be overcome by providing peripheral dopaminergic stimulation.

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Crossref · 10.1007/s40263-013-0054-1

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  • D2 receptors modulate the release of epinephrine and norepinephrine from sympathetic terminals; abolishing peripheral dopaminergic modulation results in increased sympathetic tone through excessive stimulation of α-adrenergic receptors.

    “D2 receptors modulate the release of epinephrine and norepinephrine from sympathetic terminals; abolishing peripheral dopaminergic modulation results in increased sympathetic tone through excessive stimulation of α-adrenergic receptors.”

    From Autonomic nervous system dysfunction in schizophrenia: impact on cognitive and metabolic health (2021) · cites this paper as [101]

    In “The Peripheral Dopaminergic System,” the paper says D2 activation inhibits norepinephrine release from sympathetic nerve endings and epinephrine secretion from the adrenal medulla—not both from sympathetic terminals. In “Metabolic Effects of Peripheral Dopamine D2 Receptor Blockade,” it proposes that D2 blockade increases sympathetic tone, but makes the effect conditional on α-adrenergic receptors not being completely occupied by an antipsychotic; it does not attribute the increase solely to excessive α-receptor stimulation. (LLM, conf=0.86)

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  • APs influence autonomic functioning by binding and inhibiting dopamine D2, α-adrenergic and cholinergic M3 neurotransmitter receptors in the central and peripheral nervous system which, synergistically, may induce cardiometabolic side-effects.

    “APs influence autonomic functioning by binding and inhibiting dopamine D2, α-adrenergic and cholinergic M3 neurotransmitter receptors in the central and peripheral nervous system which, synergistically, may induce these cardiometabolic side-effects100,101.”

    From Autonomic nervous system dysfunction in schizophrenia: impact on cognitive and metabolic health (2021) · cites this paper as [101]

    Split into 2 atoms — 0 confirmed, 2 partially supported, 0 disputed, 0 misattributed, 0 unverifiable. Expand the claim to see per-atom verdicts.

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  • Scigliano et al. have proposed a pathogenic hypothesis that centres around autonomic dysfunction due to chronic D2 receptor blockade by APs.

    “Scigliano et al.101 have proposed a pathogenic hypothesis that centres around autonomic dysfunction due to chronic D2 receptor blockade by APs.”
  • Impaired glycemic control, dyslipidemia, hypertension, and increased risk of cardiac arrhythmias are some of the medical sequalae of chronic sympathetic activation.

    “Impaired glycemic control, dyslipidemia, hypertension, and increased risk of cardiac arrhythmias are some of the medical sequalae of this chronic sympathetic activation.”
  • Simultaneous inhibition of muscarinic receptors prevents a reflexive parasympathetic response to maintain autonomic balance.

    “Simultaneous inhibition of muscarinic receptors then prevents a reflexive parasympathetic response to maintain autonomic balance.”

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Authors
Scigliano, G., & Ronchetti, G.
Affiliations
  • Fondazione IRCCS Istituto Neurologico Carlo Besta (IT)
  • Azienda Socio Sanitaria Territoriale degli Spedali Civili di Brescia (IT)
Corresponding author
Scigliano, Giulio
Venue
CNS Drugs
Published
2013-03-27
Volume
27
Issue
4
Pages
249-257
ISSN
  • 1172-7047 (ISSN-L)
  • 1179-1934
OpenAlex
W2091712663
Cited by
92
References
99
Citations by year
2026: 7 · 2025: 13 · 2024: 4 · 2023: 3 · 2022: 9 · 2021: 7 · 2020: 7 · 2019: 13 · 2018: 9 · 2017: 2 · 2016: 6 · 2015: 9 · 2014: 1 · 2013: 1
FWCI
4.03
Type
journal article
Language
en
Open access
Locations
  • CNS Drugs (publishedVersion, cc-by-nc)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by-nc)
  • PubMed Central (publishedVersion, cc-by-nc)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Psychiatry and Mental health › Schizophrenia research and treatment
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neurotransmitter Receptor Influence on Behavior
  • Health Sciences › Medicine › Neurology › Parkinson's Disease Mechanisms and Treatments
Keywords
antipsychotic adverse effects, schizophrenia, metabolic side effects, cardiovascular side effects, atypical antipsychotics, typical antipsychotics, autonomic dysfunction, peripheral dopamine receptors, sympathetic activity, weight gain, hypertension, cardiac arrhythmias, glycolipid metabolism, extrapyramidal symptoms
MeSH terms
Animals, Cardiovascular Diseases, Dopamine, Humans, Metabolic Diseases, Quality of Life, Schizophrenia, Antipsychotic Agents

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