Evidence map›Paper›PMID 25953521›Full record

ArticleDrug metabolism and disposition: the biological fate of chemicals2015

Expression of UDP-Glucuronosyltransferase 1 (UGT1) and Glucuronidation Activity toward Endogenous Substances in Humanized UGT1 Mouse Brain.

Yuki Kutsuno, Rika Hirashima, Masaya Sakamoto, Hiroko Ushikubo, Hirofumi Michimae, Tomoo Itoh, Robert H Tukey, Ryoichi Fujiwara

Open access · bronzeAbstract read
In one paragraph

Article in Drug metabolism and disposition: the biological fate of chemicals, 2015. 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
3.6field-weighted citation impact, top 8% 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, 25 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

8 authors at 2 institutions in 2 countries.

Yuki KutsunoDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Rika HirashimaDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Masaya SakamotoDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Hiroko UshikuboDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Hirofumi MichimaeDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Tomoo ItohDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Robert H TukeyDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.).
Ryoichi FujiwaraDepartment of Pharmaceutics (Y.K., R.H., M.S., T.I., R.F.), Department of Molecular Pharmacology (H.U.), and Division of Biostatistics (H.M.), School of Pharmacy, Kitasato University, Minato-ku, Tokyo, Japan; and Laboratory of Environmental Toxicology, Department of Pharmacology, University of California San Diego, La Jolla, California (R.H.T.) fujiwarar@pharm.kitasato-u.ac.jp.
University of California, San Diego · USKitasato University · JP

Funding

Yeast Genetics and Stress Response Genes-BiomedicalP42ES010337 · NIEHS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI TUKEY, ROBERT H · 2000 to 2022
$69.8M
Neonatal hyperbilirubinemia in a humanized UGT1 animal modelR01GM100481 · NIGMS · UNIVERSITY OF CALIFORNIA, SAN DIEGO · PI TUKEY, ROBERT H · 2012 to 2015
$1.3M
NIEHS NIH HHS P42 ES010337NIEHS NIH HHS P42-ES010337NIGMS NIH HHS R01 GM100481NIGMS NIH HHS R01-GM100481
6 · The paper itself

Abstract

Although UDP-glucuronosyltransferases (UGTs) are important phase II drug-metabolizing enzymes, they are also involved in the metabolism of endogenous compounds. Certain substrates of UGTs, such as serotonin and estradiol, play important roles in the brain. However, the expression of UGTs in the human brain has not been fully clarified. Recently, humanized UGT1 mice (hUGT1 mice) in which the original Ugt1 locus was disrupted and replaced with the human UGT1 locus have been developed. In the present study, the expression pattern of UGT1As in brains from humans and hUGT1 mice was examined. We found that UGT1A1, 1A3, 1A6, and 1A10 were expressed in human brains. The expression pattern of UGT1As in hUGT1 mouse brains was similar to that in human brains. In addition, we examined the expression of UGT1A1 and 1A6 in the cerebellum, olfactory bulbs, midbrain, hippocampus, and cerebral cortex of hUGT1 mice. UGT1A1 in all brain regions and UGT1A6 in the cerebellum and cerebral cortex of 6-month-old hUGT1 mice were expressed at a significantly higher rate than those of 2-week-old hUGT1 mice. A difference in expression levels between brain regions was also observed. Brain microsomes exhibited glucuronidation activities toward estradiol and serotonin, with mean values of 0.13 and 5.17 pmol/min/mg, respectively. In conclusion, UGT1A1 and UGT1A6 might play an important role in function regulation of endogenous compounds in a region- and age-dependent manner. Humanized UGT1 mice might be useful to study the importance of brain UGTs in vivo.

Indexed as

AdultAgingAnimalsBrain ChemistryCarbamazepineEstradiolFemaleGlucuronidesHumansIsoenzymesMaleMiceMice, Inbred C57BLMice, TransgenicMicrosomesMicrosomes, LiverCarbamazepineEstradiolGlucuronidesIsoenzymesMonosaccharide Transport ProteinsPregnenolone CarbonitrileSerotoninUDP-Galactose Translocators

Identifiers

PMID25953521
PMCPMC4468441
OpenAlexW2110883971

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.