Evidence map›Paper›PMID 30537700›Full record

ArticleNeuroendocrinology2019

Medial Amygdala Kiss1 Neurons Mediate Female Pheromone Stimulation of Luteinizing Hormone in Male Mice.

Sanya Aggarwal, Celion Tang, Kristen Sing, Hyun Wook Kim, Robert P Millar, Javier A Tello

Open access · hybridAbstract read
In one paragraph

Article in Neuroendocrinology, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.2field-weighted citation impact, top 6% 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

21 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

6 authors at 2 institutions in 2 countries.

Sanya AggarwalSchool of Medicine, University of St. Andrews, St. Andrews, United Kingdom.
Celion TangSchool of Medicine, University of St. Andrews, St. Andrews, United Kingdom.
Kristen SingSchool of Medicine, University of St. Andrews, St. Andrews, United Kingdom.
Hyun Wook KimSchool of Medicine, University of St. Andrews, St. Andrews, United Kingdom.
Robert P MillarCentre for Neuroendocrinology, Department of Physiology and Department of Immunology, University of Pretoria, Pretoria, South Africa.
Javier A TelloSchool of Medicine, University of St. Andrews, St. Andrews, United Kingdom, jt65@st-andrews.ac.uk.
University of St Andrews · GBUniversity of Cape Town · ZA

Funding

Wellcome Trust
6 · The paper itself

Abstract

BACKGROUND/

aimsThe medial amygdala (MeA) responds to olfactory stimuli and alters reproductive physiology. However, the neuronal circuit that relays signals from the MeA to the reproductive axis remains poorly defined. This study aimed to test whether MeA kisspeptin (MeAKiss) neurons in male mice are sensitive to sexually relevant olfactory stimuli and transmit signals to alter reproductive physiology. We also investigated whether MeAKiss neurons have the capacity to elaborate glutamate and GABA neurotransmitters and potentially contribute to reproductive axis regulation.

methodsUsing female urine as a pheromone stimulus, MeAKiss neuronal activity was analysed and serum luteinizing hormone (LH) was measured in male mice. Next, using a chemogenetic approach, MeAKiss neurons were bi-directionally modulated to measure the effect on serum LH and evaluate the activation of the preoptic area. Lastly, using in situ hybridization, we identified the proportion of MeAKiss neurons that express markers for GABAergic (Vgat) and glutamatergic (Vglut2) neurotransmission.

resultsMale mice exposed to female urine showed a two-fold increase in the number of c-Fos-positive MeAKiss neurons concomitant with raised LH. Chemogenetic activation of MeAKiss neurons significantly increased LH in the absence of urine exposure, whereas inhibition of MeAKiss neurons did not alter LH. In situ hybridization revealed that MeAKiss neurons are a mixed neuronal population in which 71% express Vgat mRNA, 29% express Vglut2 mRNA, and 6% express both.

conclusionsOur results uncover, for the first time, that MeAKiss neurons process sexually relevant olfactory signals to influence reproductive hormone levels in male mice, likely through a complex interplay of neuropeptide and neurotransmitter signalling.

Indexed as

Administration, InhalationAmygdalaAnimalsClozapinegamma-Aminobutyric AcidGlutamic AcidKisspeptinsLuteinizing HormoneMaleMiceMice, TransgenicNeuronsPheromonesPreoptic AreaVesicular Glutamate Transport Protein 2Vesicular Inhibitory Amino Acid Transport ProteinsClozapineclozapine N-oxidegamma-Aminobutyric AcidGlutamic AcidKiss1 protein, mouseKisspeptinsLuteinizing HormonePheromonesSlc17a6 protein, mouseVesicular Glutamate Transport Protein 2Vesicular Inhibitory Amino Acid Transport ProteinsViaat protein, mouseAmygdalaKiss-1Luteinizing hormoneMale reproductionNeuroendocrinology

Identifiers

PMID30537700
PMCPMC6518874
OpenAlexW2905201435

What OpenQuestion holds

Textmetadata
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.