Evidence map›Paper›PMID 28846730›Full record

ArticlePloS one2017

Role of amygdala kisspeptin in pubertal timing in female rats.

Daniel A Adekunbi, Xiao Feng Li, Shengyun Li, Olufeyi A Adegoke, Bolanle O Iranloye, Ayodele O Morakinyo, Stafford L Lightman, Paul D Taylor, Lucilla Poston, Kevin T O'Byrne

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
5.4field-weighted citation impact, top 5% 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

20 citing papers in PubMed, 41 citations in OpenAlex.

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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

10 authors at 3 institutions in 2 countries.

Daniel A AdekunbiDivision of Women's Health, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
Xiao Feng LiDivision of Women's Health, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
Shengyun LiDivision of Women's Health, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
Olufeyi A AdegokeDepartment of Physiology, College of Medicine, University of Lagos, Lagos, Nigeria.
Bolanle O IranloyeDepartment of Physiology, College of Medicine, University of Lagos, Lagos, Nigeria.
Ayodele O MorakinyoDepartment of Physiology, College of Medicine, University of Lagos, Lagos, Nigeria.
Stafford L LightmanHenry Wellcome Laboratory for Integrative Neuroscience and Endocrinology, University of Bristol, Bristol, United Kingdom.
Paul D TaylorDivision of Women's Health, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
Lucilla PostonDivision of Women's Health, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.
Kevin T O'ByrneDivision of Women's Health, Faculty of Life Sciences and Medicine, King's College London, London, United Kingdom.ORCID http://orcid.org/0000-0002-2548-4182
King's College London · GBUniversity of Lagos · NGUniversity of Bristol · GB

Funding

Medical Research Council MR/N022637/1
6 · The paper itself

Abstract

To investigate the mechanism by which maternal obesity disrupts reproductive function in offspring, we examined Kiss1 expression in the hypothalamic arcuate (ARC) and anteroventral periventricular (AVPV) nuclei, and posterodorsal medial amygdala (MePD) of pre-pubertal and young adult offspring. Sprague-Dawley rats were fed either a standard or energy-dense diet for six weeks prior to mating and throughout pregnancy and lactation. Male and female offspring were weaned onto normal diet on postnatal day (pnd) 21. Brains were collected on pnd 30 or 100 for qRT-PCR to determine Kiss1 mRNA levels. Maternal obesity increased Kiss1 mRNA expression in the MePD of pre-pubertal male and female offspring, whereas Kiss1 expression was not affected in the ARC or AVPV at this age. Maternal obesity reduced Kiss1 expression in all three brain regions of 3 month old female offspring, but only in MePD of males. The role of MePD kisspeptin on puberty, estrous cyclicity and preovulatory LH surges was assessed directly in a separate group of post-weanling and young adult female rats exposed to a normal diet throughout their life course. Bilateral intra-MePD cannulae connected to osmotic mini-pumps for delivery of kisspeptin receptor antagonist (Peptide 234 for 14 days) were chronically implanted on pnd 21 or 100. Antagonism of MePD kisspeptin delayed puberty onset, disrupted estrous cyclicity and reduced the incidence of LH surges. These data show that the MePD plays a key role in pubertal timing and ovulation and that maternal obesity may act via amygdala kisspeptin signaling to influence reproductive function in the offspring.

Indexed as

AmygdalaAnimalsArcuate Nucleus of HypothalamusFemaleHypothalamus, AnteriorKisspeptinsLuteinizing HormoneOvulationRatsRats, Sprague-DawleyReceptors, G-Protein-CoupledReceptors, Kisspeptin-1Sexual MaturationKiss1r protein, ratKisspeptinsLuteinizing HormoneReceptors, G-Protein-CoupledReceptors, Kisspeptin-1

Identifiers

PMID28846730
PMCPMC5573137
OpenAlexW2748017704

What OpenQuestion holds

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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 OpenQuestion graph.