Evidence map›Paper›PMID 24899460›Full record

ArticleEuropean journal of drug metabolism and pharmacokinetics2015

Age-related changes in mRNA levels of hepatic transporters, cytochrome P450 and UDP-glucuronosyltransferase in female rats.

Atsushi Kawase, Ayami Ito, Ayano Yamada, Masahiro Iwaki

Abstract read
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In one paragraph

Article in European journal of drug metabolism and pharmacokinetics, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
0.9field-weighted citation impact, top 26% 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

7 citing papers in PubMed, 24 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

4 authors at 1 institution in 1 country.

Atsushi KawaseDepartment of Pharmacy, School of Pharmacy, Kinki University, 3-4-1 Kowakae, Higashi-Osaka, 577-8502, Japan, kawase@phar.kindai.ac.jp.
Ayami Ito
Ayano Yamada
Masahiro Iwaki
Kindai University · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Hepatic transporters and metabolic enzymes affect drug pharmacokinetics. Limited information exists on the alteration in mRNA levels of hepatic transporters and metabolic enzymes with aging. We examined the effects of aging on the mRNA levels of representative hepatic drug transporters and metabolic enzymes by analyzing their levels in 10-, 30- and 50-week-old male and female rats. Levels of mRNA of drug transporters including multidrug resistance protein (Mdr)1a, multidrug resistance-associated protein (Mrp)2, breast cancer resistance protein (Bcrp) and organic anion-transporting polypeptide (Oatp)1a1, and the metabolic enzymes cytochrome P450 (CYP)3A1, CYP3A2 and UDP-glucuronosyltransferase (UGT)1A1 were analyzed using real-time reverse transcriptase polymerase chain reaction. The mRNA levels of transporters in male rats did not decrease with age, while the mRNA levels of Bcrp and Oatp1a1 in female rats decreased with age. The mRNA levels of CYP3A1 and CYP3A2 in male rats were higher than those in female rats. The mRNA levels of metabolic enzymes decreased with age in female but not male rats. In particular, the mRNA levels of UGT1A1 in 10-week-old female rats were higher than those in male rats. mRNA expression of hepatic transporters and metabolic enzymes are more susceptible to aging in female than male rats. The age-related decreases in the mRNA levels of Bcrp, Oatp1a1, CYP3A1 and CYP3A2 in female rats may affect the metabolism and transport of substrates. This study showed that aging affected the mRNA expression of hepatic transporters and metabolic enzymes in rats.

Indexed as

AgingAnimalsATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Cytochrome P-450 CYP3AFemaleGlucuronosyltransferaseLiverMaleMembrane Transport ProteinsOrganic Anion Transporters, Sodium-IndependentRatsRats, WistarRNA, MessengerUGT1A1 EnzymeAbcg2 protein, ratATP-Binding Cassette TransportersATP Binding Cassette Transporter, Subfamily G, Member 2Cyp3a23-3a1 protein, ratCyp3a2 protein, ratCytochrome P-450 CYP3AGlucuronosyltransferaseMembrane Transport ProteinsOrganic Anion Transporters, Sodium-IndependentRNA, MessengerSlco1a1 protein, ratUGT1A1 EnzymeUgt1a1 protein, rat

Identifiers

PMID24899460
OpenAlexW2005147658

What OpenQuestion holds

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Registered trials

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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.