Evidence map›Paper›PMID 33833737›Full record

ArticleFrontiers in endocrinology2021

Profiles of 5α-Reduced Androgens in Humans and Eels: 5α-Dihydrotestosterone and 11-Ketodihydrotestosterone Are Active Androgens Produced in Eel Gonads.

Takashi Yazawa, Hiroyuki Inaba, Yoshitaka Imamichi, Toshio Sekiguchi, Junsuke Uwada, Mohammad Sayful Islam, Makoto Orisaka, Daisuke Mikami, Takanori Ida, Takahiro Sato and 6 more

Open access · goldAbstract read
In one paragraph

Article in Frontiers in endocrinology, 2021. 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
2.6field-weighted citation impact, top 9% 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, 21 citations in OpenAlex.

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  4. Compensatory mechanisms that maintain androgen production in mice lacking key androgen biosynthetic enzymes.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2024
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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

16 authors at 8 institutions in 2 countries.

Takashi YazawaDepartment of Biochemistry, Asahikawa Medical University, Hokkaido, Japan.
Hiroyuki InabaDepartment of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan.
Yoshitaka ImamichiDepartment of Pharmacology, Asahikawa Medical University, Hokkaido, Japan.
Toshio SekiguchiNoto Marine Laboratory, Institute of Nature and Environmental Technology, Division of Marine Environmental Studies, Kanazawa University, Ishikawa, Japan.
Junsuke UwadaDepartment of Biochemistry, Asahikawa Medical University, Hokkaido, Japan.
Mohammad Sayful IslamDepartment of Biochemistry, Asahikawa Medical University, Hokkaido, Japan.
Makoto OrisakaDepartment of Obstetrics-Gynecology, University of Fukui, Fukui, Japan.
Daisuke MikamiDepartment of Nephrology, University of Fukui, Fukui, Japan.
Takanori IdaCenter for Animal Disease Control, University of Miyazaki, Miyazaki, Japan.
Takahiro SatoMolecular Genetics, Institute of Life Sciences, Kurume University, Fukuoka, Japan.
Yoshimichi MiyashiroASKA Pharma Medical Co., Ltd., Kanagawa, Japan.
Satoru TakahashiDepartment of Pediatrics, Asahikawa Medical University, Hokkaido, Japan.
Md Rafiqul Islam KhanDepartment of Biochemistry, Asahikawa Medical University, Hokkaido, Japan.
Nobuo SuzukiNoto Marine Laboratory, Institute of Nature and Environmental Technology, Division of Marine Environmental Studies, Kanazawa University, Ishikawa, Japan.
Akihiro UmezawaDepartment of Reproduction, National Research Institute for Child Health and Development, Tokyo, Japan.
Takeshi KitanoDepartment of Biological Sciences, Graduate School of Science and Technology, Kumamoto University, Kumamoto, Japan.
Asahikawa Medical University · JPKanazawa University · JPKumamoto University · JPUniversity of Fukui · JPASKA Pharmaceutical (Japan) · JPKurume University · JPNational Center For Child Health and Development · JPUniversity of Miyazaki · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Although 11-ketotestosterone (11KT) and testosterone (T) are major androgens in both teleosts and humans, their 5α-reduced derivatives produced by steroid 5α-reductase (SRD5A/srd5a), i.e., 11-ketodihydrotestosterone (11KDHT) and 5α-dihydrotestosterone (DHT), remains poorly characterized, especially in teleosts. In this study, we compared the presence and production of DHT and 11KDHT in Japanese eels and humans. Plasma 11KT concentrations were similar in both male and female eels, whereas T levels were much higher in females. In accordance with the levels of their precursors, 11KDHT levels did not show sexual dimorphism, whereas DHT levels were much higher in females. It is noteworthy that plasma DHT levels in female eels were higher than those in men. In addition, plasma 11KDHT was undetectable in both sexes in humans, despite the presence of 11KT. Three srd5a genes (

Indexed as

3-Oxo-5-alpha-Steroid 4-DehydrogenaseAndrogensAnimalsDihydrotestosteroneEelsFemaleGonadsHumansMaleMembrane ProteinsReceptors, AndrogenTestosterone11-ketodihydrotestosterone3-Oxo-5-alpha-Steroid 4-DehydrogenaseAndrogensDihydrotestosteroneMembrane ProteinsReceptors, AndrogenSRD5A1 protein, humanSRD5A2 protein, humanTestosterone11KDHT5α-reductaseandrogen receptorDHTtestosterone

Identifiers

PMID33833737
PMCPMC8021924
OpenAlexW3137247959

What OpenQuestion holds

Textmetadata
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 OpenQuestion graph.