Evidence map›Paper›PMID 24901945›Full record

ArticlePloS one2014

Memory decline in Down syndrome and its relationship to iPF2alpha, a urinary marker of oxidative stress.

Panagiotis Zis, Patrick McHugh, Andrew McQuillin, Domenico Praticò, Mark Dickinson, Sima Shende, Zuzana Walker, Andre Strydom

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
12citing papers in PubMed, 1 pooled it
1.5field-weighted citation impact, top 20% 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

12 citing papers in PubMed, 1 synthesis or guideline pooled it, 17 citations in OpenAlex.

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  3. Association Between Severe Chronic Obstructive Pulmonary Disease and Polyneuropathy.Medical science monitor : international medical journal of experimental and clinical research · 2021
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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

8 authors at 3 institutions in 2 countries.

Panagiotis ZisUniversity College London, Division of Psychiatry, London, United Kingdom.
Patrick McHughDivision of Pharmacy and Pharmaceutical Sciences, School of Applied Sciences University of Huddersfield, Queensgate, Huddersfield, United Kingdom.
Andrew McQuillinUniversity College London, Molecular Psychiatry Laboratory, London, United Kingdom.
Domenico PraticòDepartment of Pharmacology and Center for Translational Medicine, Temple University, Philadelphia, Pennsylvania, United States of America.
Mark DickinsonEnfield Integrated Learning Disability Team, Enfield, United Kingdom.
Sima ShendeUniversity College London, Division of Psychiatry, London, United Kingdom.
Zuzana WalkerUniversity College London, Division of Psychiatry, London, United Kingdom.
Andre StrydomUniversity College London, Division of Psychiatry, London, United Kingdom.
University College London · GBTemple University · USUniversity of Huddersfield · GB

Funding

Wellcome Trust 098330
6 · The paper itself

Abstract

backgroundLipid peroxidation may be a marker of free-radical-mediated injury associated with Alzheimer's disease (AD). We aimed to investigate whether changes in lipid peroxidation is associated with cognitive decline in individuals with Down syndrome over a 4-year period.

methodsThirty-two adults with DS participated in a longitudinal study with urinary isoprostane 8,12-iso-iPF2alpha (iPF2alpha) assays at baseline and four years follow-up. Informants rated their functional ability and memory function and the adults with DS attempted assessments of language skills and memory. Twenty-six individuals completed assessments of memory (Modified Memory Object Task, MOMT), adaptive behavior (ABAS), and receptive vocabulary (British Picture vocabulary, BPVS) at both time-points.

resultsOverall change in iPF2alpha level was negatively correlated with change in the MOMT score (Spearman's Rho =  -0.576, p = 0.006), i.e., increased lipid peroxidation was correlated with worse memory functioning over time. An increase of ≥ 0.02 ng/mg creatinine iPF2α had good sensitivity (85.7%), positive predictive value (75%,), specificity (85.7%) and negative predictive value (92.3%) for memory decline.

conclusionChange in iPF2alpha over time may have potential as a biomarker for memory decline in Down syndrome and potentially also help to track progression of MCI to AD in the general population.

Indexed as

AdolescentAdultBiomarkersCognitionDinoprostDown SyndromeEnzyme ActivationFemaleFollow-Up StudiesHumansMaleMemory DisordersOxidation-ReductionOxidative StressPsychometricsYoung Adult8-epi-prostaglandin F2alphaBiomarkersDinoprost

Identifiers

PMID24901945
PMCPMC4046955
OpenAlexW2029080375

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.