Evidence map›Paper›PMID 27240733›Full record

ArticleeLife2016

Light-induced depigmentation in planarians models the pathophysiology of acute porphyrias.

Bradford M Stubenhaus, John P Dustin, Emily R Neverett, Megan S Beaudry, Leanna E Nadeau, Ethan Burk-McCoy, Xinwen He, Bret J Pearson, Jason Pellettieri

Open access · goldAbstract read
In one paragraph

Article in eLife, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

18 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Quantitative Analysis of Planarian Pigmentation.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  5. Review
  6. Defined diets for freshwater planarians.Developmental dynamics : an official publication of the American Association of Anatomists · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. CaCold Spring Harbor perspectives in biology · 2019
    Review
  11. A modular laboratory course using planarians to study genes involved in tissue regeneration.Biochemistry and molecular biology education : a bimonthly publication of the International Union of Biochemistry and Molecular Biology · 2019
    Article
  12. Article
  13. Cell type transcriptome atlas for the planarianScience (New York, N.Y.) · 2018
    Article
  14. Article
  15. Article
  16. Article
  17. The planarianThe Journal of experimental biology · 2017
    Article
  18. 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

9 authors at 3 institutions in 2 countries.

Bradford M StubenhausDepartment of Biology, Keene State College, Keene, United States.
John P DustinDepartment of Biology, Keene State College, Keene, United States.
Emily R NeverettDepartment of Biology, Keene State College, Keene, United States.
Megan S BeaudryDepartment of Biology, Keene State College, Keene, United States.
Leanna E NadeauDepartment of Biology, Keene State College, Keene, United States.
Ethan Burk-McCoyDepartment of Biology, Keene State College, Keene, United States.
Xinwen HeThe Hospital for Sick Children, Toronto, Canada.
Bret J PearsonThe Hospital for Sick Children, Toronto, Canada.
Jason PellettieriDepartment of Biology, Keene State College, Keene, United States.ORCID 0000-0002-7800-4904
Keene State College · USOntario Institute for Cancer Research · CAUniversity of Toronto · CA

Funding

Ultrastructural analysis of axonal Kv2-mediated endoplasmic reticulum/plasma membrane (ER/PM) junctionsP20GM103506 · NIGMS · DARTMOUTH COLLEGE · PI STEVEN FIERING · 2012 to 2026
$60.1M
Cell Excretion: A Novel Mechanism of Apoptotic Cell ClearanceR15GM107826 · NIGMS · KEENE STATE COLLEGE · PI PELLETTIERI, JASON · 2014 to 2014
$307k
CIHR MOP-130294NIGMS NIH HHS P20 GM103506NIGMS NIH HHS R15 GM107826
6 · The paper itself

Abstract

Porphyrias are disorders of heme metabolism frequently characterized by extreme photosensitivity. This symptom results from accumulation of porphyrins, tetrapyrrole intermediates in heme biosynthesis that generate reactive oxygen species when exposed to light, in the skin of affected individuals. Here we report that in addition to producing an ommochrome body pigment, the planarian flatworm Schmidtea mediterranea generates porphyrins in its subepithelial pigment cells under physiological conditions, and that this leads to pigment cell loss when animals are exposed to intense visible light. Remarkably, porphyrin biosynthesis and light-induced depigmentation are enhanced by starvation, recapitulating a common feature of some porphyrias - decreased nutrient intake precipitates an acute manifestation of the disease. Our results establish planarians as an experimentally tractable animal model for research into the pathophysiology of acute porphyrias, and potentially for the identification of novel pharmacological interventions capable of alleviating porphyrin-mediated photosensitivity or decoupling dieting and fasting from disease pathogenesis.

Indexed as

AnimalsDisease Models, AnimalGene Expression RegulationHelminth ProteinsHemeHumansLightPhenothiazinesPigments, BiologicalPlanariansPorphyria, Acute IntermittentPorphyrinsSkin PigmentationStarvationHelminth ProteinsHemeommochromePhenothiazinesPigments, BiologicalPorphyrinsbiochemistrycell biologyhemeommochromepigmentplanarianporphyriaporphyrin

Identifiers

PMID27240733
PMCPMC4887210
OpenAlexW2411122910

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.