Evidence map›Paper›PMID 23826990›Full record

ArticleThe journal of headache and pain2013

Phospholipase C activity increases in cerebrospinal fluid from migraineurs in proportion to the number of comorbid conditions: a case-control study.

Alfred N Fonteh, Janice M Pogoda, Rainbow Chung, Robert P Cowan, Michael G Harrington

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
0.4field-weighted citation impact, top 35% 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

3 citing papers in PubMed, 6 citations in OpenAlex.

  1. Article
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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

5 authors at 3 institutions in 1 country.

Alfred N FontehMolecular Neurology Program, Huntington Medical Research Institutes, 99 N El Molino Ave, Pasadena, CA 91101, USA. afonteh@hmri.org.
Janice M Pogoda
Rainbow Chung
Robert P Cowan
Michael G Harrington
Huntington Medical Research Institutes · USStanford University · USUniversity of California, Irvine · US

Funding

Clinical and molecular pathophysiology of headacheR01NS043295 · NINDS · HUNTINGTON MEDICAL RESEARCH INSTITUTES · PI HARRINGTON, MICHAEL GORDON · 2003 to 2006
$1.4M
NINDS NIH HHS R01 NS043295
6 · The paper itself

Abstract

backgroundMigraineurs are more often afflicted by comorbid conditions than those without primary headache disorders, though the linking pathophysiological mechanism(s) is not known. We previously reported that phosphatidylcholine-specific phospholipase C (PC-PLC) activity in cerebrospinal fluid (CSF) increased during migraine compared to the same individual's well state. Here, we examined whether PC-PLC activity from a larger group of well-state migraineurs is related to the number of their migraine comorbidities.

methodsIn a case-control study, migraineurs were diagnosed using International Headache Society criteria, and controls had no primary headache disorder or family history of migraine. Medication use, migraine frequency, and physician-diagnosed comorbidities were recorded for all participants. Lumbar CSF was collected between the hours of 1 and 5 pm, examined immediately for cells and total protein, and stored at -80°C. PC-PLC activity in thawed CSF was measured using a fluorometric enzyme assay. Multivariable logistic regression was used to evaluate age, gender, medication use, migraine frequency, personality scores, and comorbidities as potential predictors of PC-PLC activity in CSF.

resultsA total of 18 migraineurs-without-aura and 17 controls participated. In a multivariable analysis, only the number of comorbidities was related to PC-PLC activity in CSF, and only in migraineurs [parameter estimate (standard error) = 1.77, p = 0.009].

conclusionPC-PLC activity in CSF increases with increasing number of comorbidities in migraine-without-aura. These data support involvement of a common lipid signaling pathway in migraine and in the comorbid conditions.

Indexed as

AdultAgedCase-Control StudiesComorbidityFemaleHumansMaleMiddle AgedMigraine DisordersType C Phospholipasesphosphatidylcholine-specific phospholipase CType C Phospholipases

Identifiers

PMID23826990
PMCPMC3704687
OpenAlexW2155116375

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.