Evidence map›Paper›PMID 38991835›Full record

ArticleBMJ open ophthalmology2024

Plasma matrix metalloproteinases and tissue inhibitors of metalloproteinases explored in relation to the severity and progression of diabetic retinopathy in patients with type 1 diabetes: baseline and prospective analyses.

Sven Hector, Hans Olav Thulesius, Maria Thunander, Magnus Hillman, Mona Landin-Olsson, Eva Olga Melin

Abstract read
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Article in BMJ open ophthalmology, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.

0numbers the graph read from it
0cells of the map it votes in
5citing 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

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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

5 citing papers in PubMed.

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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

6 authors.

Sven HectorClinical Sciences, Ophthalmology, Lund University Faculty of Medicine, Lund, Sweden.
Hans Olav ThulesiusDepartment of Medicine and Optometry, Linnaeus University, Kalmar, Sweden.
Maria ThunanderClinical Sciences, Diabetology and Endocrinology, Lund University, Faculty of Medicine, Lund, Sweden.
Magnus HillmanDiabetes Research Laboratory, Biomedical Centre, Lund University, Lund, Sweden.
Mona Landin-OlssonClinical Sciences, Diabetology and Endocrinology, Lund University, Faculty of Medicine, Lund, Sweden.
Eva Olga MelinClinical Sciences, Diabetology and Endocrinology, Lund University, Faculty of Medicine, Lund, Sweden eva.o.melin@gmail.com.ORCID 0000-0002-7835-2650

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsTo explore whether circulating matrix metalloproteinase-2 (MMP-2), MMP-9, MMP-9/neutrophil gelatinase-associated lipocalin, MMP-9/tissue inhibitor of metalloproteinase-1 (TIMP-1), MMP-14, TIMP-2 and TIMP-3 were associated with the severity and progression of diabetic retinopathy (DR) in patients with type 1 diabetes (T1D).

methodsBaseline and prospective analyses were conducted over a period of 10.5 person-years. In 2009, recruitment and biochemical analyses (MMPs, TIMPs, glycated haemoglobin (HbA1c), serum creatinine, macroalbuminuria) were performed. Fundus photography, performed at baseline and at follow-up in accordance with the regional screening programme, was compared after being categorised according to the International Clinical Diabetic Retinopathy Disease Severity Scale. 'DR progression at least one leve' was calculated. High MMP-2 was defined as ≥178 ng/mL (≥75th percentile) and high TIMP-2 as ≥205 ng/mL (≥75th percentile). DR was dichotomised as 'at least moderate DR' or 'no/mild DR'.

resultsThe study included 267 participants, 57% of whom were men. At baseline, the prevalence of high MMP-2 (p=0.001) and high TIMP-2 (p=0.008) increased with the severity of DR. 'At least moderate DR' (adjusted OR (AOR) 2.4, p=0.008) and macroalbuminuria (AOR 3.6, p=0.025) were independently associated with high MMP-2. 'At least moderate DR' (AOR 2.3, p=0.009) and macroalbuminuria (3.4, p=0.031) were independently associated with high TIMP-2. DR progression occurred in 101 (46%) patients (p<0.001). HbA1c≥53 mmol/mol was associated with the progression of DR (crude OR 3.8, p=0.001). No other MMPs or TIMPs were linked to the severity or the progression of DR.

conclusionsHigh levels of MMP-2 and TIMP-2 indicated more severe DR or diabetic nephropathy. Only HbA1c was associated with the progression of DR in 267 patients with T1D.

Indexed as

BiomarkersDiabetes Mellitus, Type 1Diabetic RetinopathyDisease ProgressionMatrix MetalloproteinasesSeverity of Illness IndexTissue Inhibitor of MetalloproteinasesAdultFemaleFollow-Up StudiesGlycated HemoglobinHumansMaleMiddle AgedProspective StudiesBiomarkersGlycated HemoglobinMatrix MetalloproteinasesTissue Inhibitor of MetalloproteinasesInflammationRetina

Identifiers

PMID38991835
PMCPMC11243131

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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.