Evidence map›Paper›PMID 20565457›Full record

ArticleBritish journal of clinical pharmacology2010

Effect of danshen extract on the activity of CYP3A4 in healthy volunteers.

Furong Qiu, Guangji Wang, Rong Zhang, Jianguo Sun, Jian Jiang, Yueming Ma

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In one paragraph

Article in British journal of clinical pharmacology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
7.1field-weighted citation impact, top 5% 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

14 citing papers in PubMed, 35 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

6 authors at 3 institutions in 1 country.

Furong QiuLaboratory of Clinical Pharmacokinetics, Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
Guangji Wang
Rong Zhang
Jianguo Sun
Jian Jiang
Yueming Ma
China Pharmaceutical University · CNShuguang Hospital · CNShanghai University of Traditional Chinese Medicine · CN

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo assess the effect of danshen extract on CYP3A4 activity using midazolam as an in vivo probe.

methodsA sequential, open-label, two-period pharmacokinetic interaction study design was used to compare midazolam pharmacokinetic parameters before and after 14 days of administration of danshen tablets. Twelve healthy volunteers received a single oral dose (15 mg) of midazolam followed by danshen tablets (four tablets orally, three times a day) for 14 days. On the last day of the study they received four danshen tablets with a 15 mg midazolam tablet and plasma concentrations of midazolam and its corresponding metabolite 1-hydroxylmidazolam were measured prior to and after the administration of danshen tablets periodically for 12 h.

resultsThe 90% confidence intervals of C(max,)t(1/2), CL/F and AUC(0,infinity) of midazolam before and after administration of danshen tablets were (0.559, 0.849), (0.908, 1.142), (1.086, 1.688) and (0.592, 0.921), respectively; and those of C(max), t(1/2) and AUC(0,infinity) of 1-hydroxylmidazolam after vs. before administration of danshen tablets were (0.633, 0.923), (0.801, 1.210) and (0.573, 0.980), respectively. Ratios of geometric LS means of C(max(1OHMid)) : C(max(Mid)) and AUC(max(1OHMid)) : AUC(max(Mid)) (after vs. before 14-day danshen) were 1.072 and 1.035, respectively.

conclusionsOur findings suggest that multiple dose administration of danshen tablets may induce CYP3A4 in the gut. Accordingly, caution should be taken when danshen products are used in combination with therapeutic drugs metabolized by CYP3A.

Indexed as

Administration, OralAdultArea Under CurveChinaCytochrome P-450 CYP3ADrugs, Chinese HerbalHumansHypnotics and SedativesMaleMidazolamSalvia miltiorrhizaYoung AdultCYP3A4 protein, humanCytochrome P-450 CYP3Adan-shen root extractDrugs, Chinese HerbalHypnotics and SedativesMidazolam

Identifiers

PMID20565457
PMCPMC2883758
OpenAlexW1928886399

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.