Evidence map›Paper›PMID 27138941›Full record

ArticlePloS one2016

Low Insulin-Like Growth Factor-1 Level in Obesity Nephropathy: A New Risk Factor?

Ioana Bancu, Maruja Navarro Díaz, Assumpta Serra, Marisa Granada, Dolores Lopez, Ramon Romero, Josep Bonet

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.0field-weighted citation impact, top 22% 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

7 citing papers in PubMed, 12 citations in OpenAlex.

  1. Review
  2. Article
  3. Review
  4. Review
  5. Observational
  6. Obesity-induced cognitive impairment in older adults: a microvascular perspective.American journal of physiology. Heart and circulatory physiology · 2021
    Article
  7. 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

7 authors at 2 institutions in 1 country.

Ioana BancuDepartment of Nephrology, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Maruja Navarro DíazDepartment of Nephrology, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Assumpta SerraDepartment of Nephrology, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Marisa GranadaDepartment of Biochemistry, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Dolores LopezDepartment of Pathology, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Ramon RomeroDepartment of Nephrology, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Josep BonetDepartment of Nephrology, Hospital Universitari Germans Trias i Pujol, Badalona, Barcelona, Spain.
Hospital Universitari Germans Trias i Pujol · ESSpanish Clinical Research Network · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionIGF-1 (insulin-like growth factor-1) is a hormone involved in cell growth and other important processes. In the kidney, IGF-1 has a stimulating effect, increasing the blood flow and glomerular filtration rate. Although many experimental animal studies regarding the role of IGF-1 in the kidney have been conducted, few human studies are available in the literature. Obesity is a cause of renal failure, and several glomerular lesions associated with obesity have been described. However, no studies regarding the levels of IGF-1 in morbidly obese patients with renal injury associated with obesity have been conducted.

aimTo determine the serum IGF-1 concentrations in morbidly obese patients with normal renal function but with different types of early obesity-related glomerular lesions and to evaluate the possible relationship between IGF-1 and the presence of renal lesions.

methodsEighty morbidly obese patients with renal biopsy, including 11 patients with no evidence of renal lesion, 17 patients with single glomerulomegaly, 21 patients with single podocyte hypertrophy, 10 patients with glomerulomegaly and podocyte hypertrophy, 5 patients with focal segmental hyalinosis, and 16 patients with increased mesangial matrix and/or mesangial proliferation, participated in this study. Biological parameters, including serum IGF-1 concentrations with the standard deviation score for age (SDS-IGF-1), were determined for all patients.

resultsEighty patients (50 women and 30 men) with a mean BMI of 52.63 ± 8.71 and a mean age of 42.40 ± 9.45 years were included in this study. IGF-1, IGF-1 SDS and IGF-1BP3 levels according to the renal injury were compared (normal glomeruli: IGF-1 = 190.17 ± 72.46; glomerulomegaly: IGF-1 = 122.3 ± 50.05; podocyte hypertrophy: IGF-1 = 119.81 ± 60.34; focal segmental hyalinosis: IGF-1 170.98 ± 100.83, increased mesangial matrix and/or mesangial proliferation: IGF-1 117.73 ± 63.87). Statistically significant differences were observed between serum levels of IGF-1 and between the levels of SDS-IGF-1 by comparing the group without glomerular lesion with the group formed by patients with any type of glomerular injury. Logistic regression analysis was performed, with the dependent variable defined as the glomerular injury. In the multivariate analysis, only SDS-IGF-1 was associated with glomerular injury, and low levels of IGF-1 SDS were a risk factor for kidney injury.

conclusionsOur study demonstrates that low IGF-1 serum levels are associated with renal lesions in morbidly obese patients without overt clinical renal manifestations.

Indexed as

AdultFemaleHumansInsulin-Like Growth Factor IKidney DiseasesKidney GlomerulusMaleObesity, MorbidRisk FactorsInsulin-Like Growth Factor I

Identifiers

PMID27138941
PMCPMC4854474
OpenAlexW2346737099

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Registered trials

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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.