Evidence map›Paper›PMID 29698737›Full record

ArticleToxicology and applied pharmacology2018

Dichlorophenyl piperazines, including a recently-approved atypical antipsychotic, are potent inhibitors of DHCR7, the last enzyme in cholesterol biosynthesis.

Thiago C Genaro-Mattos, Keri A Tallman, Luke B Allen, Allison Anderson, Karoly Mirnics, Zeljka Korade, Ned A Porter

Open access · greenAbstract read
In one paragraph

Article in Toxicology and applied pharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 6% of its field
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

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 34 citations in OpenAlex.

  1. Pooled it
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  14. Anthocyanins fromMolecules (Basel, Switzerland) · 2021
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  18. Trazodone effects on developing brain.Translational psychiatry · 2021
    Article
  19. Article
  20. Review
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

7 authors at 1 institution in 1 country.

Thiago C Genaro-MattosDepartment of Chemistry, Vanderbilt Institute of Chemical Biology, Nashville, TN, United States.
Keri A TallmanDepartment of Chemistry, Vanderbilt Institute of Chemical Biology, Nashville, TN, United States.
Luke B AllenDepartment of Pediatrics and Biochemistry, Molecular Biology, UNMC, Omaha, NE 68198, United States.
Allison AndersonMunroe-Meyer Institute for Genetics and Rehabilitation, Omaha, NE 68198, United States.
Karoly MirnicsMunroe-Meyer Institute for Genetics and Rehabilitation, Omaha, NE 68198, United States.
Zeljka KoradeDepartment of Pediatrics and Biochemistry, Molecular Biology, UNMC, Omaha, NE 68198, United States.
Ned A PorterDepartment of Chemistry, Vanderbilt Institute of Chemical Biology, Nashville, TN, United States; Vanderbilt Kennedy Center for Research on Human Development, Nashville, TN, United States. Electronic address: n.porter@vanderbilt.edu.
Vanderbilt University · US

Funding

Research Project: Sensory and Multisensory Contributions to AutismU54HD083211 · NICHD · VANDERBILT UNIVERSITY MEDICAL CENTER · PI DYKENS, ELISABETH MAY · 2015 to 2019
$7.1M
SLOS and Neuronal Oxidative StressR01HD064727 · NICHD · VANDERBILT UNIVERSITY · PI PORTER, NED ALLEN · 2010 to 2020
$3.7M
Ozone, oxysterols, and lung inflammationR01ES028269 · NIEHS · UNIV OF NORTH CAROLINA CHAPEL HILL · PI JASPERS, ILONA, PORTER, NED ALLEN · 2018 to 2023
$2.8M
Vulnerability of DHCR7+/- mutation carriers to aripiprazole and trazodone treatmentR01MH110636 · NIMH · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI MIRNICS, KAROLY, PORTER, NED ALLEN · 2017 to 2021
$2.7M
Sterols, Neurogenesis and Environmental AgentsR01ES024133 · NIEHS · VANDERBILT UNIVERSITY · PI KORADE, ZELJKA, PORTER, NED ALLEN · 2015 to 2017
$1.1M
NICHD NIH HHS R01 HD064727NICHD NIH HHS U54 HD083211NIEHS NIH HHS R01 ES024133NIEHS NIH HHS R01 ES028269NIMH NIH HHS R01 MH110636
6 · The paper itself

Abstract

While antipsychotic medications provide important relief from debilitating psychotic symptoms, they also have significant adverse side effects, which might have relevant impact on human health. Several research studies, including ours, have shown that commonly used antipsychotics such as haloperidol and aripiprazole affect cholesterol biosynthesis at the conversion of 7-dehydrocholesterol (7-DHC) to cholesterol. This transformation is promoted by the enzyme DHCR7 and its inhibition causes increases in plasma and tissue levels of 7-DHC. The inhibition of this enzymatic step by mutations in the Dhcr7 gene leads to Smith-Lemli-Opitz syndrome, a devastating human condition that can be replicated in rats by small molecule inhibitors of DHCR7. The fact that two compounds, brexpiprazole and cariprazine, that were recently approved by the FDA have substructural elements in common with the DHCR7 inhibitor aripiprazole, prompted us to evaluate the effect of brexpiprazole and cariprazine on cholesterol biosynthesis. We report that cariprazine affects levels of 7-DHC and cholesterol in cell culture incubations at concentrations as low as 5 nM. Furthermore, a common metabolite of cariprazine and aripiprazole, 2,3-(dichlorophenyl) piperazine, inhibits DHCR7 activity at concentrations comparable to those of the potent teratogen AY9944. The cell culture experiments were corroborated in mice in studies showing that treatment with cariprazine elevated 7-DHC in brain and serum. The consequences of sterol inhibition by antipsychotics in the developing nervous system and the safety of their use during pregnancy remains to be established.

Indexed as

AnimalsAnticholesteremic AgentsAntipsychotic AgentsBrain ChemistryCell LineCholesterolDehydrocholesterolsFemaleFibroblastsHumansMaleMiceMice, Inbred C57BLOxidoreductases Acting on CH-CH Group DonorsPiperazines7-dehydrocholesterol7-dehydrocholesterol reductaseAnticholesteremic AgentsAntipsychotic AgentscariprazineCholesterolDehydrocholesterolsOxidoreductases Acting on CH-CH Group DonorsPiperazinesAntipyschoticsCholesterol biosynthesisNeurodevelopmentTeratogen

Identifiers

PMID29698737
PMCPMC6685688
OpenAlexW2803093375

What OpenQuestion holds

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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.