Evidence map›Paper›PMID 35740978›Full record

ArticleBiomolecules2022

Midazolam as a Probe for Heterotropic Drug-Drug Interactions Mediated by CYP3A4.

Ilia G Denisov, Yelena V Grinkova, Mark A McLean, Tyler Camp, Stephen G Sligar

Open access · goldAbstract read
In one paragraph

Article in Biomolecules, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.8field-weighted citation impact, top 16% 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

10 citing papers in PubMed, 17 citations in OpenAlex.

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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

5 authors at 1 institution in 1 country.

Ilia G DenisovDepartment of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.ORCID 0000-0002-7878-2626
Yelena V GrinkovaDepartment of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Mark A McLeanDepartment of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
Tyler CampDepartment of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.ORCID 0000-0001-6296-863X
Stephen G SligarDepartment of Biochemistry, University of Illinois at Urbana-Champaign, Urbana, IL 61801, USA.
University of Illinois Urbana-Champaign · US

Funding

Nanoscale Approaches to Understanding Membrane Protein FunctionR35GM118145 · NIGMS · UNIVERSITY OF ILLINOIS AT URBANA-CHAMPAIGN · PI STEPHEN G. SLIGAR · 2016 to 2026
$7.5M
NIGMS NIH HHS GM118145NIGMS NIH HHS R35 GM118145
6 · The paper itself

Abstract

Human cytochrome P450 CYP3A4 is involved in the processing of more than 35% of current pharmaceuticals and therefore is responsible for multiple drug-drug interactions (DDI). In order to develop a method for the detection and prediction of the possible involvement of new drug candidates in CYP3A4-mediated DDI, we evaluated the application of midazolam (MDZ) as a probe substrate. MDZ is hydroxylated by CYP3A4 in two positions: 1-hydroxy MDZ formed at lower substrate concentrations, and up to 35% of 4-hydroxy MDZ at high concentrations. The ratio of the formation rates of these two products (the site of metabolism ratio, SOM) was used as a measure of allosteric heterotropic interactions caused by effector molecules using CYP3A4 incorporated in lipid nanodiscs. The extent of the changes in the SOM in the presence of effectors is determined by chemical structure and is concentration-dependent. MD simulations of CYP3A4 in the lipid bilayer suggest that experimental results can be explained by the movement of the F-F' loop and concomitant changes in the shape and volume of the substrate-binding pocket. As a result of PGS binding at the allosteric site, several residues directly contacting MDZ move away from the substrate molecule, enabling the repositioning of the latter for minor product formation.

Indexed as

Cytochrome P-450 CYP3AMidazolamAllosteric SiteDrug InteractionsHumansLipid BilayersCYP3A4 protein, humanCytochrome P-450 CYP3ALipid BilayersMidazolamallosteric interactionscytochrome P450 CYP3A4drug interactionsmidazolamnanodiscs

Identifiers

PMID35740978
PMCPMC9221276
OpenAlexW4283211422

What Socratic holds

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LicenceCC BY
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 Socratic graph.