ArticleAlcoholism, clinical and experimental research2014
Ethanol administration produces divergent changes in GABAergic neuroactive steroid immunohistochemistry in the rat brain.
Article in Alcoholism, clinical and experimental research, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 27 papers, 1 of them a synthesis that pooled it.
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Who cites it
27 citing papers in PubMed, 1 synthesis or guideline pooled it, 41 citations in OpenAlex.
- Peripartum allopregnanolone blood concentrations and depressive symptoms: a systematic review and individual participant data meta-analysis.Molecular psychiatry · 2025Pooled it
- Variation in AKR1C3, which encodes the neuroactive steroid synthetic enzyme 3α-HSD type 2 (17β-HSD type 5), moderates the subjective effects of alcohol.Psychopharmacology · 2014Trial
- Neuroactive Steroids, Toll-like Receptors, and Neuroimmune Regulation: Insights into Their Impact on Neuropsychiatric Disorders.Life (Basel, Switzerland) · 2024Review
- Structural, functional, and behavioral significance of sex and gonadal hormones in the basolateral amygdala: A review of preclinical literature.Alcohol (Fayetteville, N.Y.) · 2022Review
- Early postnatal allopregnanolone levels alteration and adult behavioral disruption in rats: Implication for drug abuse.Neurobiology of stress · 2020Article
- Allopregnanolone: From molecular pathophysiology to therapeutics. A historical perspective.Neurobiology of stress · 2020Article
- Histone Deacetylase Inhibitor Suberanilohydroxamic Acid Treatment Reverses Hyposensitivity to γ-Aminobutyric Acid in the Ventral Tegmental Area During Ethanol Withdrawal.Alcoholism, clinical and experimental research · 2018Article
- Dynamic Adaptation in Neurosteroid Networks in Response to Alcohol.Handbook of experimental pharmacology · 2018Article
- The Cerebellar GABAHandbook of experimental pharmacology · 2018Article
- Neuroactive Steroid (3α,5α)3-hydroxypregnan-20-one (3α,5α-THP) and Pro-inflammatory Cytokine MCP-1 Levels in Hippocampus CA1 are Correlated with Voluntary Ethanol Consumption in Cynomolgus Monkey.Alcoholism, clinical and experimental research · 2018Article
- Neurosteroid biosynthesis down-regulation and changes in GABABritish journal of pharmacology · 2017Review
- Voluntary ethanol consumption reduces GABAergic neuroactive steroid (3α,5α)3-hydroxypregnan-20-one (3α,5α-THP) in the amygdala of the cynomolgus monkey.Addiction biology · 2017Article
- Initial genetic dissection of serum neuroactive steroids following chronic intermittent ethanol across BXD mouse strains.Alcohol (Fayetteville, N.Y.) · 2017Article
- Cellular GABAergic Neuroactive Steroid (3α,5α)-3-Hydroxy-Pregnan-20-One (3α,5α-THP) Immunostaining Levels Are Increased in the Ventral Tegmental Area of Human Alcohol Use Disorder Patients: A Postmortem Study.Alcoholism, clinical and experimental research · 2017Article
- Neurosteroidogenesis Today: Novel Targets for Neuroactive Steroid Synthesis and Action and Their Relevance for Translational Research.Journal of neuroendocrinology · 2016Review
- Chronic Intermittent Ethanol Exposure Alters Stress Effects on (3α,5α)-3-hydroxy-pregnan-20-one (3α,5α-THP) Immunolabeling of Amygdala Neurons in C57BL/6J Mice.Frontiers in cellular neuroscience · 2016Article
- Postnatal administration of allopregnanolone modifies glutamate release but not BDNF content in striatum samples of rats prenatally exposed to ethanol.BioMed research international · 2015Article
- Allopregnanolone in the bed nucleus of the stria terminalis modulates contextual fear in rats.Frontiers in behavioral neuroscience · 2015Article
- Chronic intermittent ethanol exposure and withdrawal alters (3α,5α)-3-hydroxy-pregnan-20-one immunostaining in cortical and limbic brain regions of C57BL/6J mice.Alcoholism, clinical and experimental research · 2014Article
- Divergent neuroactive steroid responses to stress and ethanol in rat and mouse strains: relevance for human studies.Psychopharmacology · 2014Review
Corrections and comments
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Authors and funding
4 authors at 1 institution in 1 country.
Funding
Abstract
backgroundThe 5α-reduced pregnane neuroactive steroid (3α,5α)-3-hydroxypregnan-20-one (3α,5α-THP or allopregnanolone) is a potent positive modulator of GABAA receptors capable of modulating neuronal activity. In rats, systemic ethanol (EtOH) administration increases cerebral cortical and hippocampal levels of 3α,5α-THP, but the effects of EtOH on 3α,5α-THP levels in other brain regions are unknown. There is a large body of evidence suggesting that 3α,5α-THP enhances EtOH sensitivity, contributes to some behavioral effects of EtOH, and modulates EtOH reinforcement and motivation to drink. In this study, we used immunohistochemistry (IHC) to determine EtOH-induced changes in cellular 3α,5α-THP expression in brain regions associated with EtOH actions and responses.
methodsMale Wistar rats were administered EtOH (2 g/kg) or saline intraperitoneally and after 60 minutes transcardially perfused. IHC was performed on free-floating sections (3 to 4 sections/animal/brain region) using an affinity purified anti-3α,5α-THP primary antibody, and immunoreactivity was visualized with 3,3'-diaminobenzidine.
resultsEtOH significantly increased 3α,5α-THP immunoreactivity by 24 ± 6% in the medial prefrontal cortex, 32 ± 12% in the hippocampal Cornu Ammonis area 1 (CA1) pyramidal cell layer, 52 ± 5% in the polymorph cell layer of the dentate gyrus (DG), 44 ± 15% in the bed nucleus of the stria terminalis, and 36 ± 6% in the paraventricular nucleus of the hypothalamus. In contrast, EtOH administration significantly reduced 3α,5α-THP immunoreactivity by 25 ± 5% in the nucleus accumbens "shore" and 21 ± 3% in the central nucleus of the amygdala. No changes were observed in the ventral tegmental area, dorsomedial striatum, granule cell layer of the DG, or the lateral and basolateral amygdala.
conclusionsThe results suggest acute EtOH (2 g/kg) produces divergent, brain region specific, effects on cellular 3α,5α-THP levels. Regional differences in the effects of EtOH suggest there may be regional brain synthesis of 3α,5α-THP independent of the adrenal glands and novel mechanisms that reduce cellular 3α,5α-THP. Regional differences in EtOH-induced changes in 3α,5α-THP levels likely contribute to EtOH effects on neuronal function in brain.
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