Evidence map›Paper›PMID 8734441›Full record

ArticleNeurochemical research1996

Release of intracellular calcium stores leads to retraction of membrane sheets and cell death in mature mouse oligodendrocytes.

J A Benjamins, L Nedelkoska

Abstract read
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In one paragraph

Article in Neurochemical research, 1996. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.

0numbers the graph read from it
0cells of the map it votes in
12citing 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

12 citing papers in PubMed.

  1. Article
  2. Article
  3. Review
  4. Review
  5. Article
  6. Article
  7. Golli myelin basic proteins regulate oligodendroglial progenitor cell migration through voltage-gated Ca2+ influx.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2009
    Article
  8. Article
  9. Increased expression of golli myelin basic proteins enhances calcium influx into oligodendroglial cells.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2007
    Article
  10. Article
  11. Article
  12. Review
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

2 authors.

J A BenjaminsDepartment of Neurology, Wayne State University School of Medicine, Detroit, MI 48201, USA.
L Nedelkoska

Funding

MYELINATION: ASSEMBLY OF LIPIDS &PROTEINSR01NS013143 · NINDS · WAYNE STATE UNIVERSITY · PI BENJAMINS, JOYCE A · 1985 to 2003
$1.0M
NINDS NIH HHS NS13143
6 · The paper itself

Abstract

The ability of mature oligodendrocytes (OLs) to recover from insult is important in repair of damage following demyelination. Since regulation of Ca2+ levels within cells plays a critical role in function and survival, this study investigates the effects of changes in cytoplasmic Ca2+ on the viability of cultured mouse OLs and their ability to maintain membrane sheets. Mature OLs in culture respond rapidly to the calcium ionophore A23187 and promptly return to resting Ca2+ levels when the ionophore is removed. Longer exposure to 0.1-1.0 microM A23187 leads to microtubule disruption, membrane sheet retraction and eventual cell death; nuclear lysis occurs in many of the OLs, as reported by Scolding, et al. (1) for rat OLs. In our cultures, mature OLs were more susceptible to nuclear lysis than were immature OLs or astroglia. Release of intracellular Ca2+ stores with thapsigargin at 5-10 microM also leads to retraction of membrane sheets. Following 6 hours of continuous exposure to thapsigargin, the effects on membrane sheets are reversed over the next 12 hours. After 18 hours of continuous exposure to thapsigargin, only occasional nuclear lysis is observed, but a number of the mature OLs show signs of DNA fragmentation, indicating that apoptotic death is occurring. Our results suggest that mature OLs cannot survive a prolonged influx of extracellular calcium as readily as immature OLs and astroglia, but have mechanism to withstand similar increases in cytoplasmic Ca2+ following sustained release of intracellular stores.

Indexed as

AnimalsAnimals, NewbornAstrocytesBrainCalcimycinCalciumCalcium-Transporting ATPasesCell DeathCell MembraneCells, CulturedMiceMice, Inbred BALB COligodendrogliaThapsigarginCalcimycinCalciumCalcium-Transporting ATPasesThapsigargin

Identifiers

PMID8734441

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.