Evidence map›Paper›PMID 22322918›Full record

ArticleDiabetologia2012

Hyperfiltration in type 1 diabetes: does it exist and does it matter for nephropathy?

M C Thomas, J L Moran, V Harjutsalo, L Thorn, J Wadén, M Saraheimo, N Tolonen, J Leiviskä, A Jula, C Forsblom and 2 more

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Diabetologia, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.

  1. A systematic review of glomerular hyperfiltration assessment and definition in the medical literature.Clinical journal of the American Society of Nephrology : CJASN · 2015
    Pooled it
  2. Article
  3. Review
  4. Glomerular hyperfiltration.Nature reviews. Nephrology · 2022
    Review
  5. Review
  6. Observational
  7. Article
  8. Review
  9. Review
  10. Glomerular Hyperfiltration in Diabetes: Mechanisms, Clinical Significance, and Treatment.Journal of the American Society of Nephrology : JASN · 2017
    Review
  11. Article
  12. Review
  13. Article
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 4 institutions in 4 countries.

M C ThomasBaker IDI Heart and Diabetes Institute, PO Box 6492, Melbourne, VIC 8008, Australia. Merlin.Thomas@bakeridi.edu.au
J L Moran
V Harjutsalo
L Thorn
J Wadén
M Saraheimo
N Tolonen
J Leiviskä
A Jula
C Forsblom
P H Groop
FinnDiane Study Group
University of Helsinki · FIBaker Heart and Diabetes Institute · AUNational Institutes of Health · USHelsinki University Hospital · FI

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aims/hypothesisHyperfiltration is widely regarded as a contributing factor to the development of microalbuminuria and progressive nephropathy in type 1 diabetes. However, recent studies have questioned this conclusion.

methodsTo address this conflicting evidence, we examined the association between hyperfiltration and progression to microalbuminuria in 2,318 adults with type 1 diabetes. We also compared the estimated GFR in our diabetic patients with rates observed in 6,247 adults from the Finnish general population, using age- and sex-specific z scores.

resultsThe distribution of estimated GFR in adults with type 1 diabetes and normoalbuminuria was not significantly different from that expected in the general population (p = 0.51, Mann-Whitney test). Type 1 diabetic patients with a higher estimated GFR were also no more likely to develop microalbuminuria over a median of 5.2 years of follow-up than those with normal estimated GFR. This was the case regardless of whether hyperfiltration was defined by an absolute threshold, deciles of estimated GFR or a z score, using creatinine- or cystatin-based clearance formulas in men or in women. CONCLUSIONS/

interpretationTogether with other studies, these data suggest that creatinine- or cystatin-based estimates of GFR do not predict the development of microalbuminuria in patients with type 1 diabetes. Moreover, in the absence of incipient or overt nephropathy, conventionally determined renal function in patients with type 1 diabetes appears no different from that in the general population. This is hardly surprising, given that these individuals, by all definitions, do not have kidney disease.

Indexed as

AdolescentAdultAlbuminuriaDiabetes Mellitus, Type 1Diabetic NephropathiesDisease ProgressionFemaleFinlandGlomerular Filtration RateHumansMaleMiddle AgedPrevalenceYoung Adult

Identifiers

PMID22322918
OpenAlexW1756544426

What OpenQuestion holds

Textmetadata
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.