Evidence map›Paper›PMID 21632807›Full record

Trial reportThe Journal of clinical endocrinology and metabolism2011

Kisspeptin-10 is a potent stimulator of LH and increases pulse frequency in men.

J T George, J D Veldhuis, A K Roseweir, C L Newton, E Faccenda, R P Millar, R A Anderson

Registry-linked trialOpen access · bronzeAbstract readClinical Trial
In one paragraph

Trial report in The Journal of clinical endocrinology and metabolism, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT03315325 (Age-dependent Changes in the Responsiveness of Hypothalamic Pituitary Gonadal Axis to Kisspeptin-10 Administration in Men), which is not on this map. Cited by 68 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
68citing papers in PubMed, 1 pooled it
17.2field-weighted citation impact, top 1% 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.

NCT03315325 phase3completednot on this mapstarted 2014, after this paper: background citation

Age-dependent Changes in the Responsiveness of Hypothalamic Pituitary Gonadal Axis to Kisspeptin-10 Administration in Men

TypeinterventionalSponsorQuaid-e-Azam UniversityRan2014 to 2015Enrolled15ConditionsSterility, ReproductiveArmsHuman kisspeptin-10 (metastin 45-54)
3 · Its place in the literature

Who cites it

68 citing papers in PubMed, 1 synthesis or guideline pooled it, 180 citations in OpenAlex.

  1. Kisspeptins in human reproduction-future therapeutic potential.Journal of assisted reproduction and genetics · 2012
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8 more citing papers are in PubMed but not listed here.

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 5 institutions in 3 countries.

J T GeorgeMedical Research Council Human Reproductive Sciences Unit, Centre for Reproductive Biology, The Queen's Medical Research Institute, Edinburgh EH16 4TJ, UK. j.george@ed.ac.uk
J D Veldhuis
A K Roseweir
C L Newton
E Faccenda
R P Millar
R A Anderson
MRC Centre for Reproductive Health · GBThe Queen's Medical Research Institute · GBMayo Clinic · USMedical Research Council · GBUniversity of Edinburgh · GB

Funding

Aging Systems in Geriatrics: the Male Gonadal AxisR01AG031763 · NIA · MAYO CLINIC ROCHESTER · PI VELDHUIS, JOHANNES D · 2010 to 2014
$1.9M
Medical Research Council G0701682Medical Research Council G1002033NIA NIH HHS R01 AG031763
6 · The paper itself

Abstract

contextKisspeptins stimulate GnRH and thus gonadotropin secretion. Kisspeptin-10 is the minimal kisspeptin sequence with full intrinsic bioactivity, but it has not been studied in man.

objectiveWe investigated our hypothesis that kisspeptin-10 increases GnRH and thus LH pulse frequency. DESIGN AND

participantsThe dose response of kisspeptin-10 was investigated by administering iv bolus doses (0.01-3.0 μg/kg) and vehicle to healthy men. Effects on LH pulse frequency and size were determined by deconvolution analysis during infusion of kisspeptin-10 for up to 22.5 h.

resultsIntravenous bolus kisspeptin-10 resulted in a rapid and dose-dependent rise in serum LH concentration, with maximal stimulation at 1 μg/kg (4.1 ± 0.4 to 12.4 ± 1.7 IU/liter at 30 min, P < 0.001, n = 6). Administration of 3 μg/kg elicited a reduced response vs. 1 μg/kg (P < 0.05). Infusion of kisspeptin-10 at 4 μg/kg · h for 22.5 h elicited an increase in LH from a mean of 5.4 ± 0.7 to 20.8 ± 4.9 IU/liter (n = 4; P < 0.05) and serum testosterone increased from 16.6 ± 2.4 to 24.0 ± 2.5 nmol/liter (P < 0.001). LH pulses were obscured at this high rate of secretion, but a lower dose infusion of kisspeptin-10 (1.5 μg/kg · h) increased mean LH from 5.2 ± 0.8 to 14.1 ± 1.7 IU/liter (n = 4; P < 0.01) and increased LH pulse frequency from 0.7 ± 0.1 to 1.0 ± 0.2 pulses/h (P < 0.05) and secretory burst mass from 3.9 ± 0.4 to 12.8 ± 2.6 IU/liter (P < 0.05).

conclusionsKisspeptin-10 boluses potently evoke LH secretion in men, and continuous infusion increases testosterone, LH pulse frequency, and pulse size. Kisspeptin analogues have therapeutic potential as regulators of LH and thus testosterone secretion.

Indexed as

AdultDose-Response Relationship, DrugFollicle Stimulating HormoneGonadotropin-Releasing HormoneHumansHypothalamo-Hypophyseal SystemInjections, IntravenousKisspeptinsLuteinizing HormoneMaleTachyphylaxisTestosteroneTumor Suppressor ProteinsFollicle Stimulating HormoneGonadotropin-Releasing HormoneKISS1 protein, humanKisspeptinsLuteinizing HormoneTestosteroneTumor Suppressor Proteins

Identifiers

PMID21632807
PMCPMC3380939
OpenAlexW2128786502

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

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.