Evidence map›Paper›PMID 30868713›Full record

ArticleAging cell2019

Increased intron retention is a post-transcriptional signature associated with progressive aging and Alzheimer's disease.

Swarnaseetha Adusumalli, Zhen-Kai Ngian, Wei-Qi Lin, Touati Benoukraf, Chin-Tong Ong

Open access · goldAbstract read
In one paragraph

Article in Aging cell, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 80 papers.

0numbers the graph read from it
0cells of the map it votes in
80citing papers in PubMed
4.7field-weighted citation impact, top 4% 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

80 citing papers in PubMed, 143 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Sex-biased intron retention in Alzheimer's disease.Neural regeneration research · 2026
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  12. NADScience advances · 2025
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  19. Systematic identification of exercise-induced anti-aging processes involving intron retention.The journals of gerontology. Series A, Biological sciences and medical sciences · 2025
    Article
  20. Article

20 more citing papers are in PubMed but not listed here.

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

5 authors at 2 institutions in 2 countries.

Swarnaseetha AdusumalliTemasek Life Sciences Laboratory, National University of Singapore, Singapore.ORCID 0000-0003-0704-9061
Zhen-Kai NgianTemasek Life Sciences Laboratory, National University of Singapore, Singapore.
Wei-Qi LinTemasek Life Sciences Laboratory, National University of Singapore, Singapore.
Touati BenoukrafCancer Science Institute of Singapore, National University of Singapore, Singapore.ORCID 0000-0002-4789-8028
Chin-Tong OngTemasek Life Sciences Laboratory, National University of Singapore, Singapore.
Temasek Life Sciences Laboratory · SGMemorial University of Newfoundland · CA

Funding

Singapore Ministry of Education MOE2014-T3-1-006Temasek Life Sciences Laboratory Core funding
6 · The paper itself

Abstract

Intron retention (IR) by alternative splicing is a conserved regulatory mechanism that can affect gene expression and protein function during adult development and age-onset diseases. However, it remains unclear whether IR undergoes spatial or temporal changes during different stages of aging or neurodegeneration like Alzheimer's disease (AD). By profiling the transcriptome of Drosophila head cells at different ages, we observed a significant increase in IR events for many genes during aging. Differential IR affects distinct biological functions at different ages and occurs at several AD-associated genes in older adults. The increased nucleosome occupancy at the differentially retained introns in young animals suggests that it may regulate the level of IR during aging. Notably, an increase in the number of IR events was also observed in healthy older mouse and human brain tissues, as well as in the cerebellum and frontal cortex from independent AD cohorts. Genes with differential IR shared many common features, including shorter intron length, no perturbation in their mRNA level, and enrichment for biological functions that are associated with mRNA processing and proteostasis. The differentially retained introns identified in AD frontal cortex have higher GC content, with many of their mRNA transcripts showing an altered level of protein expression compared to control samples. Taken together, our results suggest that an increased IR is an conserved signature that is associated with aging. By affecting pathways involved in mRNA and protein homeostasis, changes of IR pattern during aging may regulate the transition from healthy to pathological state in late-onset sporadic AD.

Indexed as

AgingAlzheimer DiseaseAnimalsBrainDrosophilaHumansIntronsMiceTranscriptomeagingAlzheimer’s diseaseDrosophilahumanIntron retentionmouse

Identifiers

PMID30868713
PMCPMC6516162
OpenAlexW2921856972

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.