ArticleBrain research2017
PR-independent neurosteroid regulation of α2-GABA-A receptors in the hippocampus subfields.
Article in Brain research, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
What it found
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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.
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.
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Who cites it
11 citing papers in PubMed, 16 citations in OpenAlex.
- Current View on PPAR-α and Its Relation to Neurosteroids in Alzheimer's Disease and Other Neuropsychiatric Disorders: Promising Targets in a Therapeutic Strategy.International journal of molecular sciences · 2024Review
- Neurosteroids as Novel Anticonvulsants for Refractory Status Epilepticus and Medical Countermeasures for Nerve Agents: A 15-Year Journey to Bring Ganaxolone from Bench to Clinic.The Journal of pharmacology and experimental therapeutics · 2024Review
- Preclinical and clinical pharmacology of brexanolone (allopregnanolone) for postpartum depression: a landmark journey from concept to clinic in neurosteroid replacement therapy.Psychopharmacology · 2023Review
- Neurosteroid replacement therapy for catamenial epilepsy, postpartum depression and neuroendocrine disorders in women.Journal of neuroendocrinology · 2022Review
- Does Stress Trigger Seizures? Evidence from Experimental Models.Current topics in behavioral neurosciences · 2022Article
- Progesterone modulates neuronal excitability bidirectionally.Neuroscience letters · 2021Review
- Anti-apoptotic Actions of Allopregnanolone and Ganaxolone Mediated Through Membrane Progesterone Receptors (PAQRs) in Neuronal Cells.Frontiers in endocrinology · 2020Review
- Neurosteroid Actions in Memory and Neurologic/Neuropsychiatric Disorders.Frontiers in endocrinology · 2019Review
- Early-life adversity selectively impairs α2-GABANeuropharmacology · 2018Article
- 3The Journal of pharmacology and experimental therapeutics · 2018Article
- Neurosteroid Metabolites of Gonadal Steroid Hormones in Neuroprotection: Implications for Sex Differences in Neurodegenerative Disease.Frontiers in molecular neuroscience · 2018Review
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
Abstract
Progesterone (P) binding to the intracellular progesterone receptors (PRs) plays a key role in epilepsy via modulation of GABA-A receptor plasticity in the brain. This is thought to occur via conversion of P to neurosteroids such as allopregnanolone, an allosteric modulator of GABA-A receptors. In the female brain, the composition of GABA-A receptors is not static and undergoes dynamic spatial changes in response to fluctuations in P and neurosteroid levels. Synaptic α2-containing GABA-A receptors contribute to phasic neuronal excitability and seizure susceptibility. However, the mechanisms underlying α2-subunit plasticity remain unclear. Here, we utilized the neurosteroid synthesis inhibitor finasteride and PR knockout mice to investigate the role of PRs in α2-subunit in the hippocampus. α2-Subunit expression was significantly upregulated during the high-P state of diestrous stage and with P treatment in wildtype and PR knockout mice. In contrast, there was no change in α2-subunit expression when metabolism of P into neurosteroids was blocked by finasteride in both genotypes. These findings suggest that ovarian cycle-related P and neurosteroids regulate α2-GABA-A receptor expression in the hippocampus via a non-PR pathway, which may be relevant to menstrual-cycle related brain conditions.
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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.