Evidence map›Paper›PMID 27500471›Full record

ArticleJournal of visualized experiments : JoVE2016

Measurement of Survival Time in Brachionus Rotifers: Synchronization of Maternal Conditions.

Gen Kaneko, Tatsuki Yoshinaga, Kristin E Gribble, David M Welch, Hideki Ushio

Abstract readVideo-Audio Media
In one paragraph

Article in Journal of visualized experiments : JoVE, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. Article
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.

Gen KanekoDepartment of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo; School of Arts and Sciences, University of Houston-Victoria; gkaneko1@icloud.com.
Tatsuki YoshinagaSchool of Marine Biosciences, Department of Marine Biosciences, Kitasato University.
Kristin E GribbleJosephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory.
David M WelchJosephine Bay Paul Center for Comparative Molecular Biology and Evolution, Marine Biological Laboratory.
Hideki UshioDepartment of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo.

Funding

Mechanisms of beneficial transgenerational plasticity to improve offspring agingK01AG049049 · NIA · MARINE BIOLOGICAL LABORATORY · PI GRIBBLE, KRISTIN · 2015 to 2019
$661k
NIA NIH HHS K01 AG049049
6 · The paper itself

Abstract

Rotifers are microscopic cosmopolitan zooplankton used as models in ecotoxicological and aging studies due to their several advantages such as short lifespan, ease of culture, and parthenogenesis that enables clonal culture. However, caution is required when measuring their survival time as it is affected by maternal age and maternal feeding conditions. Here we provide a protocol for powerful and reproducible measurement of the survival time in Brachionus rotifers following a careful synchronization of culture conditions over several generations. Empirically, poor synchronization results in early mortality and a gradual decrease in survival rate, thus resulting in weak statistical power. Indeed, under such conditions, calorie restriction (CR) failed to significantly extend the lifespan of B. plicatilis although CR-induced longevity has been demonstrated with well-synchronized rotifer samples in past and present studies. This protocol is probably useful for other invertebrate models, including the fruitfly Drosophila melanogaster and the nematode Caenorhabditis elegans, because maternal age effects have also been reported in these species.

Indexed as

LongevityAgingAnimalsCaenorhabditis elegansDrosophila melanogasterFemaleRotifera

Identifiers

PMID27500471
PMCPMC5305283

What OpenQuestion holds

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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.