Evidence map›Paper›PMID 25815253›Full record

ReviewWorld journal of psychiatry2015

Smoking in schizophrenic patients: A critique of the self-medication hypothesis.

Francesca Manzella, Susan E Maloney, George T Taylor

Abstract readReview
In one paragraph

Review in World journal of psychiatry, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 38 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
38citing papers in PubMed, 1 pooled it
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

38 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
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  10. Evaluation Expression of the Caspase-3 and Caspase-9 Apoptotic Genes in Schizophrenia Patients.Clinical psychopharmacology and neuroscience : the official scientific journal of the Korean College of Neuropsychopharmacology · 2023
    Article
  11. Article
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  13. Smoking cessation among people with mental illness: A South African perspective.South African family practice : official journal of the South African Academy of Family Practice/Primary Care · 2022
    Article
  14. Article
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  18. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

3 authors.

Francesca ManzellaFrancesca Manzella, George T Taylor, Behavioral Neuroscience Program, Department of Psychological Sciences, University of Missouri-St. Louis, St. Louis, MO 63121, United States.
Susan E MaloneyFrancesca Manzella, George T Taylor, Behavioral Neuroscience Program, Department of Psychological Sciences, University of Missouri-St. Louis, St. Louis, MO 63121, United States.
George T TaylorFrancesca Manzella, George T Taylor, Behavioral Neuroscience Program, Department of Psychological Sciences, University of Missouri-St. Louis, St. Louis, MO 63121, United States.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A common remark among laypeople, and notably also among mental health workers, is that individuals with mental illnesses use drugs as self-medication to allay clinical symptoms and the side effects of drug treatments. Roots of the self-medication concept in psychiatry date back at least to the 1980s. Observations that rates of smokers in schizophrenic patients are multiple times the rates for regular smoking in the general population, as well as those with other disorders, proved particularly tempting for a self-medication explanation. Additional evidence came from experiments with animal models exposed to nicotine and the identification of neurobiological mechanisms suggesting self-medication with smoking is a plausible idea. More recently, results from studies comparing smoking and non-smoking schizophrenic patients have led to the questioning of the self-medication hypothesis. Closer examination of the literature points to the possibility that smoking is less beneficial on schizophrenic symptomology than generally assumed while clearly increasing the risk of cancer and other smoking-related diseases responsible for early mortality. It is a good time to examine the evidence for the self-medication concept as it relates to smoking. Our approach is to focus on data addressing direct or implied predictions of the hypothesis in schizophrenic smokers.

Indexed as

Age of onsetDopamineNicotineNicotinic receptorPositive-negative symptomsSide effectsSmoking cessation

Identifiers

PMID25815253
PMCPMC4369547

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.