Evidence map›Paper›PMID 39075271›Full record

ArticleNature aging2024

Maternal age enhances purifying selection on pathogenic mutations in complex I genes of mammalian mtDNA.

Yanfei Ru, Xiaoling Deng, Jiatong Chen, Leping Zhang, Zhe Xu, Qunyu Lv, Shiyun Long, Zijian Huang, Minghua Kong, Jing Guo and 1 more

Abstract read
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In one paragraph

Article in Nature aging, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed
–field-weighted citation impact
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

11 citing papers in PubMed.

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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

11 authors.

Yanfei Ru *Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Xiaoling Deng *Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Jiatong Chen *Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Leping Zhang *Westlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Zhe XuWestlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Qunyu LvWestlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.ORCID http://orcid.org/0000-0002-1608-2093
Shiyun LongWestlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Zijian HuangWestlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Minghua KongWestlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China.
Jing GuoClinical Research Center for Reproduction and Genetics in Hunan Province, Reproductive and Genetic Hospital of CITIC-Xiangya, Changsha, China.
Min JiangWestlake Laboratory of Life Sciences and Biomedicine, Hangzhou, China. jiangmin@westlake.edu.cn.ORCID http://orcid.org/0000-0002-7005-937X

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Mitochondrial diseases, caused mainly by pathogenic mitochondrial DNA (mtDNA) mutations, pose major challenges due to the lack of effective treatments. Investigating the patterns of maternal transmission of mitochondrial diseases could pave the way for preventive approaches. In this study, we used DddA-derived cytosine base editors (DdCBEs) to generate two mouse models, each haboring a single pathogenic mutation in complex I genes (ND1 and ND5), replicating those found in human patients. Our findings revealed that both mutations are under strong purifying selection during maternal transmission and occur predominantly during postnatal oocyte maturation, with increased protein synthesis playing a vital role. Interestingly, we discovered that maternal age intensifies the purifying selection, suggesting that older maternal age may offer a protective effect against the transmission of deleterious mtDNA mutations, contradicting the conventional notion that maternal age correlates with increased transmitted mtDNA mutations. As collecting comprehensive clinical data is needed to understand the relationship between maternal age and transmission patterns in humans, our findings may have profound implications for reproductive counseling of mitochondrial diseases, especially those involving complex I gene mutations.

Indexed as

DNA, MitochondrialMaternal AgeMitochondrial DiseasesMutationAnimalsDisease Models, AnimalElectron Transport Complex IFemaleHumansMaternal InheritanceMiceSelection, GeneticDNA, MitochondrialElectron Transport Complex I

Identifiers

PMID39075271

What Socratic 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 Socratic graph.