Evidence map›Paper›PMID 32052032›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2020

Effects of Glucagon-like Peptide-1 on the Reproductive Axis in Healthy Men.

Chioma Izzi-Engbeaya, Sophie Jones, Yoshibye Crustna, Pratibha C Machenahalli, Deborah Papadopoulou, Manish Modi, Christos Panayi, Jessica Starikova, Pei Chia Eng, Maria Phylactou and 16 more

Open access · hybridAbstract readRandomized Controlled Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
2.3field-weighted citation impact, top 11% 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, 31 citations in OpenAlex.

  1. Trial
  2. Article
  3. Review
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  12. Review
  13. Article
  14. Using Aptamers as a Novel Method for Determining GnRH/LH Pulsatility.International journal of molecular sciences · 2020
    Review
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

26 authors at 3 institutions in 2 countries.

Chioma Izzi-EngbeayaSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Sophie JonesSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Yoshibye CrustnaSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Pratibha C MachenahalliSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Deborah PapadopoulouSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Manish ModiSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Christos PanayiSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Jessica StarikovaSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Pei Chia EngSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Maria PhylactouSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Edouard MillsSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Lisa YangSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Risheka RatnasabapathySection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Mark SykesSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Isabella PlumptreSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Ben CoumbeSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Victoria C WingSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Ewa PacuszkaSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Paul BechSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
James MinnionSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
George TharakanSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Tricia TanSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Johannes VeldhuisDepartment of Internal Medicine, Mayo Clinic, Rochester, Minnesota.
Ali AbbaraSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Alexander N ComninosSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Waljit S DhilloSection of Endocrinology and Investigative Medicine, Department of Medicine, Imperial College London, London, UK.
Imperial College London · GBImperial College Healthcare NHS Trust · GBMayo Clinic · US

Funding

Biotechnology and Biological Sciences Research CouncilDepartment of Health CS-2018-18-ST2-002Department of Health RP-2014-05-001Medical Research Council MR/M004171/1Medical Research Council MR/N020472/1Medical Research Council MR/R000484/1Medical Research Council MR/T006242/1Wellcome Trust
6 · The paper itself

Abstract

contextGlucagon-like peptide-1 (GLP-1) potently reduces food intake and augments glucose-stimulated insulin secretion. Recent animal data suggest that GLP-1 may also influence reproduction. As GLP-1 receptor agonists are currently widely used in clinical practice to treat obesity/type 2 diabetes, it is necessary to determine the effects of GLP-1 on the reproductive system in humans.

objectiveTo investigate the effects of GLP-1 administration on the reproductive axis in humans.

designSingle-blind, randomized, placebo-controlled crossover study.

settingClinical Research Facility, Imperial College Healthcare NHS Trust.

participantsEighteen healthy men (mean age 24.7 ± 0.1years, mean BMI 22.1 ± 0.4kg/m2).

interventionEight-hour intravenous infusion of 0.8 pmol/kg/min GLP-1 or rate-matched vehicle infusion.

main outcome measuresNumber of luteinizing hormone (LH) pulses, LH, follicle-stimulating hormone (FSH), and testosterone levels.

resultsThe number of LH pulses (number of LH pulses/500 min: vehicle 4.2 ± 0.4, GLP-1 4.5 ± 0.3, P = 0.46), LH area under the curve (AUC) (vehicle 1518 ± 88min.IU/L, GLP-1 1524 ± 101min.IU/L, P = 0.95), follicle-stimulating hormone AUC (vehicle 1210 ± 112 min IU/L, GLP-1 1216 ± 112 min IU/L, P = 0.86), and testosterone AUC (vehicle 10893 ± 615 min nmol/L, GLP-1 11088 ± 792 min nmol/L, P = 0.77) did not significantly differ during vehicle and GLP-1 administration. Glucagon-like peptide-1 significantly reduced food intake (vehicle 15.7 ± 1.3 kcal/kg, GLP-1 13.4 ± 1.3 kcal/kg, P = 0.01).

conclusionsIn contrast to the animal literature, our data demonstrate that acute GLP-1 administration does not affect reproductive hormone secretion in healthy men.

Indexed as

AdultBiomarkersCross-Over StudiesFollow-Up StudiesGlucagonGlucagon-Like Peptide 1HumansIncretinsInsulin SecretionMalePrognosisReproductionSingle-Blind MethodYoung AdultBiomarkersGlucagonGlucagon-Like Peptide 1Incretinsfollicle stimulating hormoneglucagon-like peptide-1luteinizing hormonereproductiontestosterone

Identifiers

PMID32052032
PMCPMC7082082
OpenAlexW3005667573

What Socratic holds

Textmetadata
LicenceCC BY
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 Socratic graph.