Evidence map›Paper›PMID 25611822›Full record

ArticlePediatric diabetes2016

Testosterone concentration and insulin sensitivity in young men with type 1 and type 2 diabetes.

Megan M Kelsey, Petter Bjornstad, Kim McFann, Kristen Nadeau

Open access · greenAbstract read
In one paragraph

Article in Pediatric diabetes, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.6field-weighted citation impact, top 16% 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

13 citing papers in PubMed, 20 citations in OpenAlex.

  1. Trial
  2. Observational
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  9. Article
  10. Sex differences in diabetes and kidney disease: mechanisms and consequences.American journal of physiology. Renal physiology · 2019
    Review
  11. Article
  12. Article
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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

4 authors at 1 institution in 1 country.

Megan M KelseyDepartment of Pediatric Endocrinology, University of Colorado Denver, Aurora, CO, USA.
Petter BjornstadDepartment of Pediatrics, University of Colorado Denver, Aurora, CO, USA.
Kim McFannDepartment of Biostatistics, University of Colorado Denver, Aurora, CO, USA.
Kristen NadeauDepartment of Pediatric Endocrinology, University of Colorado Denver, Aurora, CO, USA.
University of Colorado Denver · US

Funding

Colorado Clinical and Translational Sciences InstituteUL1TR001082 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2013 to 2017
$48.0M
PILOT STUDY--SUBSTRATE METABOLISM IN EXTREMELY LOW BIRTH WEIGHT INFANTSP30DK048520 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI BRYAN C BERGMAN · 1995 to 2026
$32.6M
ZORVIRAX ORAL SUSPENSION FOR SEVERE CHILDHOOD HERPES VIRUS INFECTIONSM01RR000069 · NCRR · UNIVERSITY OF COLORADO DENVER · PI KRUGMAN, RICHARD D. · 1985 to 2008
$22.1M
Colorado Clinical and Translational Science Institute (UL1)UL1TR000154 · NCATS · UNIVERSITY OF COLORADO DENVER · PI SOKOL, RONALD J. · 2012 to 2013
$20.4M
UCHSC: Building Interdisciplinary Research Careers in Women's HealthK12HD057022 · NICHD · UNIVERSITY OF COLORADO DENVER · PI REGENSTEINER, JUDITH G., SANTORO, NANETTE F. · 2007 to 2023
$8.5M
Insulin Control of Fat Regulation and Exercise in TeensK23RR020038 · NCRR · UNIVERSITY OF COLORADO DENVER · PI NADEAU, KRISTEN JANE · 2004 to 2008
$657k
Insulin Resistance In Adolescents With Diabetes: A New Frontier For CardiovasculaR56DK088971 · NIDDK · UNIVERSITY OF COLORADO DENVER · PI NADEAU, KRISTEN JANE · 2010 to 2010
$215k
NCATS NIH HHS CTSI UL1 TR000154NCATS NIH HHS UL1 TR000154NCATS NIH HHS UL1 TR001082NCRR NIH HHS K23 RR020038NCRR NIH HHS M01 RR000069NICHD NIH HHS K12 HD057022NICHD NIH HHS NIH BIRCWH K12 5K12HD057022-04NIDDK NIH HHS L40 DK082367NIDDK NIH HHS R56 DK088971
6 · The paper itself

Abstract

objectiveReduced testosterone, a recognized comorbidity of reduced insulin sensitivity (IS) and type 2 diabetes (T2D), has also been reported in adult males with type 1 diabetes (T1D). However, there are limited data on how early reduced testosterone occurs, and whether it is related to the reduced IS in T1D. Leptin, a modulator of the HPG-axis, may also influence testosterone in T1D. We hypothesized that IS and leptin would be associated with total testosterone (TT), and free androgen index (FAI) in adolescent males with T1D.

methodsT1D (n = 35), T2D (n = 13), lean (n = 13) and obese (n = 9) adolescent males had IS measured by hyperinsulinemic-euglycemic clamps (glucose infusion rate [GIR]), in addition to leptin, sex hormone binding globulin (SHBG), TT, and FAI. The cohort was stratified into those with T1D (n = 35) and those without (n = 35).

resultsTT and SHBG were lower in T2D boys vs. lean controls, and GIR and leptin correlated with FAI and TT in non-T1D participants. However, despite being insulin resistant, adolescent males with T1D had normal TT and FAI, unrelated to GIR. In T1D, leptin was inversely associated with TT (p = 0.005) and FAI (p = 0.01), independent of puberty, hemoglobin A1c (HbA1c), diabetes duration, body mass index (BMI) z-score and GIR.

conclusionLeptin accounted for a significant proportion of the variability of testosterone in T1D. However, despite reduced IS, there was no association between IS and testosterone in T1D adolescents. These observations suggest that the mechanisms affecting testosterone may differ between adolescent males with and without T1D.

Indexed as

Insulin ResistanceAdolescentChildCohort StudiesDiabetes Mellitus, Type 1Diabetes Mellitus, Type 2Glucose Clamp TechniqueHumansLeptinMaleObesityTestosteroneLeptinTestosteroneinsulin sensitivityleptinpubertytestosteronetype 1 diabetes

Identifiers

PMID25611822
PMCPMC4510044
OpenAlexW2155980500

What OpenQuestion holds

Textmetadata
LicenceTDM
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.