Evidence map›Paper›PMID 31648367›Full record

ArticleBritish journal of pharmacology2020

Propranolol is a mechanism-based inhibitor of CYP2D and CYP2D6 in humanized CYP2D6-transgenic mice: Effects on activity and drug responses.

Edgor Cole Tolledo, Sharon Miksys, Frank J Gonzalez, Rachel F Tyndale

Open access · bronzeAbstract read
In one paragraph

Article in British journal of pharmacology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed, 1 pooled it
2.3field-weighted citation impact, top 12% 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

9 citing papers in PubMed, 1 synthesis or guideline pooled it, 14 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. The roles of Cyp1a2 and Cyp2d in pharmacokinetic profiles of serotonin and norepinephrine reuptake inhibitor duloxetine and its metabolites in mice.European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences · 2023
    Article
  4. Article
  5. Assessing cytochrome P450 function using genetically engineered mouse models.Advances in pharmacology (San Diego, Calif.) · 2022
    Review
  6. Article
  7. Article
  8. Article
  9. Article
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

4 authors at 2 institutions in 2 countries.

Edgor Cole TolledoCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Department of Pharmacology & Toxicology, Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0003-2655-1815
Sharon MiksysCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Department of Pharmacology & Toxicology, Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0001-7642-3745
Frank J GonzalezLaboratory of Metabolism, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland, USA.ORCID 0000-0002-7990-2140
Rachel F TyndaleCampbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Department of Pharmacology & Toxicology, Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.ORCID 0000-0003-1297-2053
Centre for Addiction and Mental Health · CANational Institutes of Health · US

Funding

Xenobiotic ReceptorsZIABC005708 · NCI · DIVISION OF BASIC SCIENCES - NCI · PI GONZALEZ, FRANK J · 2009 to 2025
$16.4M
Campbell Family Mental Health Research Institute of the Centre for Addiction and Mental Health (CAMH)Canada Research Chair in PharmacogenomicsCIHR FDN 154294CIHR FRN 132557
6 · The paper itself

Abstract

background and purposeGenetics and drug interactions contribute to large interindividual variation in human CYP2D6 activity. Here, we have characterized propranolol inhibition of human and mouse CYP2D using transgenic (TG) mice, which express both mouse CYP2D and human CYP2D6, and wild-type (WT) mice. Our purpose was to develop a method for in vivo manipulation of CYP2D6 enzyme activity which could be used to investigate the role of CYP2D6 in drug-induced behaviours. EXPERIMENTAL APPROACH: Dextromethorphan metabolism to dextrorphan was used to measure CYP2D activity and to characterize propranolol inhibition in vitro and in vivo. Effects of propranolol pretreatment (24 hr) on serum levels of the CYP2D6 substrate haloperidol and haloperidol-induced catalepsy were also studied. KEY

resultsDextrorphan formation velocity in vitro was threefold higher in liver microsomes of TG compared to WT mice. Propranolol acted as a mechanism-based inhibitor (MBI), inactivating CYP2D in liver microsomes from TG and WT mice, and humans. Pretreatment (24 hr) of TG and WT mice with 20 mg·kg CONCLUSIONS AND IMPLICATIONS: Propranolol was a potent MBI of dextrorphan formation in liver microsomes from TG and WT mice, and humans. The inhibition parameters in TG overlapped with those in WT mice and in humans. Inhibition of CYP2D with propranolol in vivo in TG and WT mice altered drug responses, allowing further investigation of variations in CYP2D6 on drug interactions and drug responses.

Indexed as

Cytochrome P-450 CYP2D6PropranololAnimalsCytochrome P-450 CYP2D6 InhibitorsHaloperidolHumansMiceMice, TransgenicMicrosomes, LiverCytochrome P-450 CYP2D6Cytochrome P-450 CYP2D6 InhibitorsHaloperidolPropranolol

Identifiers

PMID31648367
PMCPMC7012948
OpenAlexW2981379533

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.