ArticleJournal of neuroendocrinology2022
Time of day influences stress hormone response to ketamine.
Article in Journal of neuroendocrinology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers, 1 of them a synthesis that pooled it.
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
9 citing papers in PubMed, 1 synthesis or guideline pooled it, 15 citations in OpenAlex.
- Optimal dose and type of exercise to improve cognitive function in adults with major depressive disorder: a systematic review and Bayesian model-based network meta-analysis.Frontiers in public health · 2025Pooled it
- Glucocorticoid Receptor and SUMO Fluctuations in Response to Pulsatile Glucocorticoids In Vitro and in Male Rat Brains.Endocrinology · 2025Article
- The evolving neurobiology of early-life stress.Neuron · 2025Review
- Effects of Subanesthetic Intravenous Ketamine Infusion on Stress Hormones and Synaptic Density in Rats with Mild Closed-Head Injury.Biomedicines · 2025Article
- Serum/glucocorticoid regulated kinase 1 (SGK1) in neurological disorders: pain or gain.Experimental neurology · 2024Review
- Repurposing Ketamine in the Therapy of Depression and Depression-Related Disorders: Recent Advances and Future Potential.Aging and disease · 2024Review
- Circadian regulation of hippocampal function is disrupted with corticosteroid treatment.Proceedings of the National Academy of Sciences of the United States of America · 2023Article
- Time of day influences stress hormone response to ketamine.Journal of neuroendocrinology · 2022Article
- Effects of aerobic exercise on cognitive function in adults with major depressive disorder: A systematic review and meta-analysis.International journal of clinical and health psychology : IJCHPArticle
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
7 authors at 1 institution in 1 country.
Funding
Abstract
Over 50% of depressed patients show hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis. Conventional therapy takes weeks to months to improve symptoms. Ketamine has rapid onset antidepressant effects. Yet its action on HPA axis activity is poorly understood. Here, we measured the corticosterone (CORT) response to ketamine administered at different times of day in the Wistar-Kyoto (WKY) rat. In male rats, blood was collected every 10 min for 28 h using an automated blood sampling system. Ketamine (5/10/25 mg · kg) was infused through a subcutaneous cannula at two time points-during the active and inactive period. CORT levels in blood were measured in response to ketamine using a radioimmunoassay. WKY rats displayed robust circadian secretion of corticosterone and was not overly different to Sprague Dawley rats. Ketamine (all doses) significantly increased CORT response at both infusion times. However, a dose dependent effect and marked increase over baseline was observed when ketamine was administered during the inactive phase. Ketamine has a robust and rapid effect on HPA axis function. The timing of ketamine injection may prove crucial for glucocorticoid-mediated action in depression.
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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.