Evidence map›Paper›PMID 28789657›Full record

ArticleCardiovascular diabetology2017

Neutrophil gelatinase associated lipocalin (NGAL) is elevated in type 2 diabetics with carotid artery stenosis and reduced under metformin treatment.

W Eilenberg, S Stojkovic, A Piechota-Polanczyk, A Kaider, N Kozakowski, W J Weninger, J Nanobachvili, J Wojta, I Huk, S Demyanets and 1 more

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In one paragraph

Article in Cardiovascular diabetology, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 29 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
29citing papers in PubMed, 1 pooled it
4.3field-weighted citation impact, top 5% 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

29 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
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  7. Multi-arm covariate-adaptive randomization.Science China. Mathematics · 2023
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  13. CSF lipocalin-2 increases early in subarachnoid hemorrhage are associated with neuroinflammation and unfavorable outcome.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 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

11 authors at 2 institutions in 2 countries.

W EilenbergDepartment of Surgery, Division of Vascular Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
S StojkovicDepartment of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria.
A Piechota-PolanczykDepartment of Medical Biotechnology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University in Krakow, Krakow, Poland.
A KaiderCenter for Medical Statistics, Informatics, and Intelligent Systems, Medical University of Vienna, Vienna, Austria.
N KozakowskiDepartment of Pathology, Medical University of Vienna, Vienna, Austria.
W J WeningerCenter of Anatomy and Cell Biology, Medical University of Vienna, Vienna, Austria.
J NanobachviliDepartment of Surgery, Division of Vascular Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
J WojtaDepartment of Internal Medicine II, Division of Cardiology, Medical University of Vienna, Vienna, Austria.
I HukDepartment of Surgery, Division of Vascular Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria.
S DemyanetsDepartment of Laboratory Medicine, Medical University of Vienna, Vienna, Austria.
C NeumayerDepartment of Surgery, Division of Vascular Surgery, Medical University of Vienna, Währinger Gürtel 18-20, 1090, Vienna, Austria. christoph.neumayer@meduniwien.ac.at.
Medical University of Vienna · ATJagiellonian University · PL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundNeutrophil gelatinase-associated lipocalin (NGAL), an acute phase protein released by neutrophils, has been described as biomarker of inflammatory states. Type 2 diabetes mellitus (T2DM) is characterized by increased inflammation and an elevated risk for embolization of carotid artery stenosis (CAS). We aimed to explore the role of NGAL systemically and in plaques of diabetics undergoing carotid endarterectomy. Moreover, the potential anti-inflammatory effect of metformin on NGAL was addressed in diabetics.

methodsSerum NGAL and matrix metalloproteinase (MMP)-9/NGAL levels were measured in 136 patients (67 with T2DM vs. 69 non-diabetics) by specific ELISA. Endarterectomy samples were graded histologically according to the American Heart Association´s classification. NGAL mRNA expression was detected using RealTime-PCR in carotid endarterectomy specimens.

resultsSerum NGAL [median 107.4 ng/ml (quartiles: 75.2-145.0) vs. 64.4 (50.4 -81.3), p < 0.0001] and MMP-9/NGAL [41.5 ng/ml (20.8-63.9) vs. 27.6 (16.0-42.4), p = 0.017] were significantly elevated in diabetics compared to non-diabetics, as were leukocytes, neutrophils, C-reactive protein and fibrinogen (all p < 0.05). In patients with symptomatic and asymptomatic CAS diabetics had higher NGAL levels compared to non-diabetics [128.8 ng/ml (100.8-195.6) vs. 64.8 (48.9-82.2] and [101.6 ng/ml (70.1-125.3) vs. 63.8 (51.0-81.3), respectively, both p < 0.0001]. Presence of T2DM and type VI plaques (with surface defect, hemorrhage or thrombus) had a profound impact on NGAL levels (both p < 0.01) in multiple linear regression analysis. NGAL mRNA was detectable in 95% of analyzed carotid artery lesions of diabetics compared to 5% of non-diabetics (p < 0.0001). Accordingly, cerebral embolization was more frequent in diabetics (52.2% vs. 29%, p = 0.006). Metformin treatment was associated with decreased NGAL [60.7 ng/ml (51.9-69.2) vs. 121.7 (103.7-169.9), p < 0.0001] and MMP-9/NGAL [20.8 ng/ml (12.1-26.5) vs. 53.7 (27.4-73.4), p = 0.007] in diabetics and reduced leukocyte infiltration in carotid lesions of diabetics.

conclusionsHigher NGAL levels in serum and plaques are associated with T2DM in patients with CAS. Metformin significantly reduced the inflammatory burden including NGAL in diabetics. Early treatment of these patients may be recommended, as elevated NGAL levels were linked with vulnerable plaques prone for embolization.

Indexed as

AgedBiomarkersCarotid ArteriesCarotid Artery DiseasesCarotid StenosisDiabetes Mellitus, Type 2FemaleHumansLipocalin-2MaleMetforminMiddle AgedProto-Oncogene ProteinsBiomarkersLCN2 protein, humanLipocalin-2MetforminProto-Oncogene ProteinsAtherosclerosisCarotid artery stenosisInflammationLipocalinMetforminNGALType II diabetes

Identifiers

PMID28789657
PMCPMC5549375
OpenAlexW2745062606

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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.