Evidence map›Paper›PMID 42487462›Full record

ArticleVeterinary clinical pathology2026

Evaluation of an Immunoturbidometric Assay for Measurement of Total Adiponectin Concentration in Equine Serum Samples.

Rose D Nolen-Walston, Caitrin R Lowndes, Jeaneen C Kulp, Daniela Luethy, Darko Stefanovski, Andrew W Van Eps

Abstract readEvaluation Study
In one paragraph

Article in Veterinary clinical pathology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing 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

1 citing paper in PubMed.

  1. 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

6 authors.

Rose D Nolen-WalstonDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0002-9383-0067
Caitrin R LowndesDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Jeaneen C KulpDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.
Daniela LuethyDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0003-1693-2147
Darko StefanovskiDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0002-4654-0569
Andrew W Van EpsDepartment of Clinical Studies-New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Philadelphia, Pennsylvania, USA.ORCID https://orcid.org/0000-0001-6108-2503

Funding

the Laminitis Research Fund, University of Pennsylvania
6 · The paper itself

Abstract

backgroundTotal adiponectin (TA) is a marker of metabolic health in equids, with values below a critical decision point of < 7.9 μg/mL conferring increased risk of laminitis.

objectivesTo evaluate an IT assay to measure serum [TA] in equids and to assess its correlation with [high molecular weight adiponectin] (HMWA) measured by ELISA.

methodsTotal serum adiponectin concentrations from 207 adult horses were measured using both an IT assay for TA and HMWA using a previously validated ELISA assay. Data were analyzed using Spearman correlation and Passing-Bablok regression. Intra- and inter-assay precision, linearity, lower limit of quantification (LLoQ), and freeze-thaw stability were assessed for the [TA] assay.

resultsMean (range) intra-assay coefficient of variation (CV%) was 2.3% (1.8%-2.8%); inter-assay, across-day CV% was 3.3% (3.25%-3.4%), and across reagent lot CV was 11.7% (9.0%-17.9%). Mean recovery upon dilution was 133.7% (122.6%-140.6%), and LLoQ 1.3 μg/mL. The median CV for 5 freeze-thaw cycles was 3.0% (range 1.0%-3.0%) with a median change in concentration of -11% (range -[9.9-17.1]%). A strong correlation between [TA] and [HMWA] is observed (ρ = 0.90 [95% confidence interval 0.86-0.92], p < 0.001), although in 18% of samples, [HMWA] > [TA].

conclusionsThe turbidimetric immunoassay is sufficiently precise and reliable for measurement of [TA] in equids, especially around the critical decision point, and LLoQ was below the lowest clinical cut-off value. [TA] overall correlated well with [HMWA] in this population, although instances of higher [HMWA] than [TA] were noted at high [HMWA].

Indexed as

AdiponectinImmunoturbidimetryAnimalsBiomarkersEnzyme-Linked Immunosorbent AssayFemaleHorsesMaleReproducibility of ResultsAdiponectinBiomarkersendocrinopathyequine metabolic syndromehorseinsulin dysregulationlaminitis

Identifiers

PMID42487462
PMCPMC13686539

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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.