Evidence map›Paper›PMID 22703530›Full record

ArticleBMC musculoskeletal disorders2012

Selected statins produce rapid spinal motor neuron loss in vitro.

Beth B Murinson, Norman J Haughey, Nicholas J Maragakis

Open access · goldAbstract read
In one paragraph

Article in BMC musculoskeletal disorders, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
2.0field-weighted citation impact, top 14% 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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 35 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

3 authors at 2 institutions in 2 countries.

Beth B MurinsonDepartment of Neurology, Johns Hopkins School of Medicine, Baltimore, USA. bmurins1@jhmi.edu
Norman J Haughey
Nicholas J Maragakis
Johns Hopkins Medicine · USJohns Hopkins University · US

Funding

Therapeutic CoreP30MH075673 · NIMH · JOHNS HOPKINS UNIVERSITY · PI Leah Helane Rubin, Barbara Stauch Slusher · 2006 to 2026
$33.2M
HIV Associated CNS Dysfunction with AgingR01AG023471 · NIA · JOHNS HOPKINS UNIVERSITY · PI HAUGHEY, NORMAN J · 2003 to 2007
$1.8M
Mediators of C-Fiber Response to Partial Nerve InjuryK08NS048146 · NINDS · JOHNS HOPKINS UNIVERSITY · PI HOGANS, BETH B · 2006 to 2010
$775k
HIV Mediated Dysfunction of Neural Progenitor CellsR21MH072534 · NIMH · JOHNS HOPKINS UNIVERSITY · PI HAUGHEY, NORMAN J · 2005 to 2006
$421k
NIA NIH HHS R01 AG023471NIMH NIH HHS R21 MH072534NINDS NIH HHS K08NS048146
6 · The paper itself

Abstract

backgroundHmg-CoA reductase inhibitors (statins) are widely used to prevent disease associated with vascular disease and hyperlipidemia. Although side effects are uncommon, clinical observations suggest statin exposure may exacerbate neuromuscular diseases, including peripheral neuropathy and amyotrophic lateral sclerosis. Although some have postulated class-effects, prior studies of hepatocytes and myocytes indicate that the statins may exhibit differential effects. Studies of neuronal cells have been limited.

methodsWe examined the effects of statins on cultured neurons and Schwann cells. Cultured spinal motor neurons were grown on transwell inserts and assessed for viability using immunochemical staining for SMI-32. Cultured cortical neurons and Schwann cells were assessed using dynamic viability markers.

results7 days of exposure to fluvastatin depleted spinal motor neurons in a dose-dependent manner with a KD of < 2 μM. Profound neurite loss was observed after 4 days exposure in culture. Other statins were found to produce toxic effects at much higher concentrations. In contrast, no such toxicity was observed for cultured Schwann cells or cortical neurons.

conclusionsIt is known from pharmacokinetic studies that daily treatment of young adults with fluvastatin can produce serum levels in the single micromolar range. We conclude that specific mechanisms may explain neuromuscular disease worsening with statins and further study is needed.

Indexed as

AnimalsBiomarkersCells, CulturedCell SurvivalDose-Response Relationship, DrugFatty Acids, MonounsaturatedFluvastatinHydroxymethylglutaryl-CoA Reductase InhibitorsImmunohistochemistryIndolesMotor NeuronsNeuritesPravastatinRatsSchwann CellsSimvastatinBiomarkersFatty Acids, MonounsaturatedFluvastatinHydroxymethylglutaryl-CoA Reductase InhibitorsIndolesPravastatinSimvastatin

Identifiers

PMID22703530
PMCPMC3487793
OpenAlexW2065635832

What OpenQuestion holds

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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.