ArticleFrontiers in endocrinology2023
Acetylcholine regulation of GnRH neuronal activity: A circuit in the medial septum.
Article in Frontiers in endocrinology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers, 1 of them a synthesis that pooled it.
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The trial behind it
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Who cites it
7 citing papers in PubMed, 1 synthesis or guideline pooled it, 9 citations in OpenAlex.
- Dietary modulation of pubertal timing: gut microbiota-derived SCFAs and neurotransmitters orchestrate hypothalamic maturation via the gut-brain axis.Journal of endocrinological investigation · 2025Pooled it
- NGF administration is associated with increased GnRH immunoreactivity and a GnRH-associated phenotype in hypothalamic NSCs of aging mice.Frontiers in endocrinology · 2026Article
- Altered Electrophysiology and Transcriptome of GnRH Neurons in Middle-Aged Female Mice.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2025Article
- Neuroestrogens, the hippocampus, and female cognitive aging.Hormones and behavior · 2025Review
- Identification of Environmental Compounds That May Trigger Early Female Puberty by Activating Human GnRHR and KISS1R.Endocrinology · 2024Article
- Cholinergic Control of GnRH Neuron Physiology and Luteinizing Hormone Secretion in Male Mice: Involvement of ACh/GABA Cotransmission.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2024Article
- Transcriptome analysis of hypothalamus and pituitary tissues reveals genetic mechanisms associated with high egg production rates in Changshun green-shell laying hens.BMC genomics · 2023Article
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
Abstract
In vertebrates, gonadotropin-releasing hormone (GnRH)-secreting neurons control fertility by regulating gonadotrophs in the anterior pituitary. While it is known that acetylcholine (ACh) influences GnRH secretion, whether the effect is direct or indirect, and the specific ACh receptor (AChR) subtype(s) involved remain unclear. Here, we determined 1) whether ACh can modulate GnRH cellular activity and 2) a source of ACh afferents contacting GnRH neurons. Calcium imaging was used to assay GnRH neuronal activity. With GABAergic and glutamatergic transmission blocked, subtype-specific AChR agonists and antagonists were applied to identify direct regulation of GnRH neurons. ACh and nicotine caused a rise in calcium that declined gradually back to baseline after 5-6 min. This response was mimicked by an alpha3-specific agonist. In contrast, muscarine inhibited GnRH calcium oscillations, and blocking M2 and M4 together prevented this inhibition. Labeling for choline acetyltransferase (ChAT) and GnRH revealed ChAT fibers contacting GnRH neurons, primarily in the medial septum (MS), and in greater number in females than males. ChAT positive cells in the MS are known to express p75NGFRs. Labeling for p75NGFR, ChAT and GnRH indicated that ChAT fibers contacting GnRH cells originate from cholinergic cells within these same rostral areas. Together, these results indicate that cholinergic cells in septal areas can directly regulate GnRH neurons.
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