Evidence map›Paper›PMID 33581723›Full record

ArticleReproductive biology and endocrinology : RB&E2021

Irisin deletion induces a decrease in growth and fertility in mice.

Yunyao Luo, Xiaoyong Qiao, Yaxian Ma, Hongxia Deng, Charles C Xu, Liangzhi Xu

Open access · goldAbstract read
In one paragraph

Article in Reproductive biology and endocrinology : RB&E, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
2.9field-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

16 citing papers in PubMed, 36 citations in OpenAlex.

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  10. The Role of Adipokines in the Control of Pituitary Functions.Animals : an open access journal from MDPI · 2024
    Review
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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 4 institutions in 2 countries.

Yunyao Luo *Reproductive Endocrinology and Regulation Laboratory West China Second University Hospital, Sichuan University, #20 Section 3, Ren Min Nan Road, Chengdu, 610041, Sichuan, China.
Xiaoyong Qiao *Reproductive Endocrinology and Regulation Laboratory West China Second University Hospital, Sichuan University, #20 Section 3, Ren Min Nan Road, Chengdu, 610041, Sichuan, China.
Yaxian MaReproductive Endocrinology and Regulation Laboratory West China Second University Hospital, Sichuan University, #20 Section 3, Ren Min Nan Road, Chengdu, 610041, Sichuan, China.
Hongxia DengReproductive Endocrinology and Regulation Laboratory West China Second University Hospital, Sichuan University, #20 Section 3, Ren Min Nan Road, Chengdu, 610041, Sichuan, China.
Charles C XuCollege of Engineering, The Ohio State University, Columbus, OH, USA.
Liangzhi XuReproductive Endocrinology and Regulation Laboratory West China Second University Hospital, Sichuan University, #20 Section 3, Ren Min Nan Road, Chengdu, 610041, Sichuan, China. xuliangzhi_art@126.com.
Sichuan University · CNWest China Second University Hospital of Sichuan University · CNChinese University of Hong Kong · CNThe Ohio State University · US

Funding

Innovative Research Group Project of the National Natural Science Foundation of China 81671421Innovative Research Group Project of the National Natural Science Foundation of China 81701413
6 · The paper itself

Abstract

backgroundIrisin, which is cleaved from fibronectin type III domain-containing protein 5 (Fndc5), plays an important role in energy homeostasis. The link between energy metabolism and reproduction is well known. However, the biological actions of irisin in reproduction remain largely unexplored.

methodsIn this study, we generated Fndc5 gene mutation to create irisin deficient mice. Female wild-type (WT) and Fndc5 mutant mice were fed with standard chow for 48 weeks. Firstly, the survival rate, body weight and fertility were described in mice. Secondly, the levels of steroid hormones in serum were measured by ELISA, and the estrus cycle and the appearance of follicles were determined by vaginal smears and ovarian continuous sections. Thirdly, mRNA-sequencing analysis was used to compare gene expression between the ovaries of Fndc5 mutant mice and those of WT mice. Finally, the effects of exogenous irisin on steroid hormone production was investigated in KGN cells.

resultsThe mice lacking irisin presented increased mortality, reduced body weight and poor fertility. Analysis of sex hormones showed decreased levels of estradiol, follicle-stimulating hormone and luteinizing hormone, and elevated progesterone levels in Fndc5 mutant mice. Irisin deficiency in mice was associated with irregular estrus, reduced ratio of antral follicles. The expressions of Akr1c18, Mamld1, and Cyp19a1, which are involved in the synthesis of steroid hormones, were reduced in the ovaries of mutant mice. Exogenous irisin could promote the expression of Akr1c18, Mamld1, and Cyp19a1 in KGN cells, stimulating estradiol production and inhibiting progesterone secretion.

conclusionsIrisin deficiency was related to disordered endocrinology metabolism in mice. The irisin deficient mice showed poor growth and development, and decreased fertility. Irisin likely have effects on the expressions of Akr1c18, Mamld1 and Cyp19a1 in ovary, regulating the steroid hormone production. This study provides novel insights into the potential role of irisin in mammalian growth and reproduction.

Indexed as

AnimalsCells, CulturedFemaleFertilityFibronectinsGene DeletionGranulosa CellsGrowth and DevelopmentHumansInfertility, FemaleMiceMice, Inbred C57BLMice, KnockoutOvarian FollicleFibronectinsFNDC5 protein, mouseGrowth and developmentHormone metabolismIrisinReproduction

Identifiers

PMID33581723
PMCPMC7881587
OpenAlexW3129374724

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.