Evidence map›Paper›PMID 25849533›Full record

ArticlePloS one2015

Aberrant fat metabolism in Caenorhabditis elegans mutants with defects in the defecation motor program.

Ming Sheng, Ava Hosseinzadeh, Somsundar Veppil Muralidharan, Rahul Gaur, Eva Selstam, Simon Tuck

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
0.4field-weighted citation impact, top 40% 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

14 citing papers in PubMed, 31 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

6 authors at 1 institution in 1 country.

Ming ShengUmeå Center for Molecular Medicine, Umeå University, SE-901 87 Umeå, Sweden.
Ava HosseinzadehUmeå Center for Molecular Medicine, Umeå University, SE-901 87 Umeå, Sweden.
Somsundar Veppil MuralidharanUmeå Center for Molecular Medicine, Umeå University, SE-901 87 Umeå, Sweden.
Rahul GaurUmeå Center for Molecular Medicine, Umeå University, SE-901 87 Umeå, Sweden.
Eva SelstamDepartment of Plant Physiology, Umeå University, SE-901 87 Umeå, Sweden.
Simon TuckUmeå Center for Molecular Medicine, Umeå University, SE-901 87 Umeå, Sweden.
Umeå University · SE

Funding

Enhancing and expanding the CGC Strain CollectionP40OD010440 · OD · UNIVERSITY OF MINNESOTA · PI Aric L Daul, Ann E. Rougvie · 2012 to 2026
$7.5M
NIH HHS P40 OD010440
6 · The paper itself

Abstract

The molecular mechanisms by which dietary fatty acids are absorbed by the intestine, and the way in which the process is regulated are poorly understood. In a genetic screen for mutations affecting fat accumulation in the intestine of Caenorhabditis elegans, nematode worms, we have isolated mutations in the aex-5 gene, which encodes a Kex2/subtilisin-family, Ca2+-sensitive proprotein convertase known to be required for maturation of certain neuropeptides, and for a discrete step in an ultradian rhythmic phenomenon called the defecation motor program. We demonstrate that aex-5 mutants have markedly lower steady-state levels of fat in the intestine, and that this defect is associated with a significant reduction in the rate at which labeled fatty acid derivatives are taken up from the intestinal lumen. Other mutations affecting the defecation motor program also affect steady-state levels of triglycerides, suggesting that the program is required per se for the proper accumulation of neutral lipids. Our results suggest that an important function of the defecation motor program in C. elegans is to promote the uptake of an important class of dietary nutrients. They also imply that modulation of the program might be one way in which worms adjust nutrient uptake in response to altered metabolic status.

Indexed as

DefecationAnimalsCaenorhabditis elegansCaenorhabditis elegans ProteinsDietary FatsEndopeptidasesIntestinal MucosaLipid MetabolismMutationAEX-5 prohormone convertaseCaenorhabditis elegans ProteinsDietary FatsEndopeptidases

Identifiers

PMID25849533
PMCPMC4388766
OpenAlexW2009221350

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.