Evidence map›Paper›PMID 22285759›Full record

ArticleNeurobiology of aging2012

Behavioral decay in aging male C. elegans correlates with increased cell excitability.

Xiaoyan Guo, Andrew Navetta, Daisy G Gualberto, L Rene García

Open access · greenAbstract read
In one paragraph

Article in Neurobiology of aging, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.

0numbers the graph read from it
0cells of the map it votes in
32citing papers in PubMed
1.2field-weighted citation impact, top 25% 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

32 citing papers in PubMed, 52 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

4 authors at 1 institution in 1 country.

Xiaoyan GuoDepartment of Biology, Texas A&M University, 3258 TAMU, College Station, TX 77843-3258, USA.
Andrew Navetta
Daisy G Gualberto
L Rene García
Texas A&M University · US

Funding

Howard Hughes Medical Institute
6 · The paper itself

Abstract

Deteriorative changes in behavioral functions are natural processes that accompany aging. In advanced aged C. elegans nematodes, gross decline in general behaviors, such as locomotion and feeding, is correlated with degeneration of muscle structure and contractile function. In this study, we characterized the age-related changes in C. elegans male mating behavior to determine possible causes that ultimately lead to age-related muscle frailty. Unlike the kinetics of general behavioral decline, we found that mating behavior deteriorates early in adulthood, with no obvious muscle fiber disorganization or sperm dysfunction. Through direct mating behavior observations, Ca(2+) imaging, and pharmacological tests, we found that the muscular components used for mating become more excitable as the males age. Interestingly, manipulating either the expression of acetylcholine receptor (AChR) genes or dietary-mediated ether-a-go-go family K(+) channel function can reduce the muscle excitability of older males and concurrently improve mating behavior, suggesting a correlation between these biological processes.

Indexed as

AgingAnimalsCaenorhabditis elegansCalcium SignalingCell MembraneMaleMuscle ContractionSexual Behavior, Animal

Identifiers

PMID22285759
PMCPMC3378242
OpenAlexW2147568549

What OpenQuestion 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 OpenQuestion graph.