Trial reportJournal of Alzheimer's disease : JAD2016
The Effect of Propofol Versus Isoflurane Anesthesia on Human Cerebrospinal Fluid Markers of Alzheimer's Disease: Results of a Randomized Trial.
Trial report in Journal of Alzheimer's disease : JAD, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 37 papers.
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.
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.
Who cites it
37 citing papers in PubMed, 56 citations in OpenAlex.
- Apolipoprotein E Mimetic Peptide CN-105 and Postoperative Delirium in Older Patients: The Phase 2 MARBLE Randomized Clinical Trial.JAMA network open · 2026Trial
- Perioperative changes in neurocognitive and Alzheimer's disease-related cerebrospinal fluid biomarkers in older patients randomised to isoflurane or propofol for anaesthetic maintenance.British journal of anaesthesia · 2023Trial
- Postoperative changes in cognition and cerebrospinal fluid neurodegenerative disease biomarkers.Annals of clinical and translational neurology · 2022Trial
- A prospective randomized study examining the impact of intravenous versus inhalational anesthesia on postoperative cognitive decline and delirium.Applied neuropsychology. AdultTrial
- Neuroinflammation-associated thalamocortical functional connectivity and cognition in older adults.Journal of neuroinflammation · 2026Article
- Comprehensive Review of Anesthetic Strategies for Patients With Neurodegenerative Diseases.Medical science monitor : international medical journal of experimental and clinical research · 2026Review
- Inhaled General Anesthetics in Alzheimer's Disease Progression: Divergent Effects, Underlying Mechanisms, and Future Perspectives.Molecular neurobiology · 2026Review
- Comparison of Cognitive Deterioration Between Propofol and Remimazolam Anesthesia in ApoE4 Knock-In Mouse Model.International journal of molecular sciences · 2025Article
- Cognitive and Cerebrospinal Fluid Alzheimer's Disease-related Biomarker Trajectories in Older Surgical Patients and Matched Nonsurgical Controls.Anesthesiology · 2024Article
- PD-L1/PD-1 checkpoint pathway regulates hippocampal neuronal excitability and learning and memory behavior.Neuron · 2023Article
- Prospective analysis of plasma amyloid beta and postoperative delirium in the Interventions for Postoperative Delirium: Biomarker-3 study.British journal of anaesthesia · 2023Article
- Hevin/Sparcl1 drives pathological pain through spinal cord astrocyte and NMDA receptor signaling.JCI insight · 2022Article
- Does propofol definitely improve postoperative cognitive dysfunction?-a review of propofol-related cognitive impairment.Acta biochimica et biophysica Sinica · 2022Review
- Anesthesia promotes acute expression of genes related to Alzheimer's disease and latent tau aggregation in transgenic mouse models of tauopathy.Molecular medicine (Cambridge, Mass.) · 2022Article
- Disrupted neural correlates of anesthesia and sleep reveal early circuit dysfunctions in Alzheimer models.Cell reports · 2022Article
- Propofol Versus Sevoflurane General Anaesthesia for Selective Impairment of Attention Networks After Gynaecological Surgery in Middle-Aged Women: A Randomised Controlled Trial.Frontiers in psychiatry · 2022Article
- Processed Multiparameter Electroencephalogram-Guided General Anesthesia Management Can Reduce Postoperative Delirium Following Carotid Endarterectomy: A Randomized Clinical Trial.Frontiers in neurology · 2021Article
- Association Between Exposure to General Versus Regional Anesthesia and Risk of Dementia in Older Adults.Journal of the American Geriatrics Society · 2021Article
- Cerebrospinal Fluid Proteome Changes in Older Non-Cardiac Surgical Patients with Postoperative Cognitive Dysfunction.Journal of Alzheimer's disease : JAD · 2021Observational
- Gene-Specific DNA Methylation Linked to Postoperative Cognitive Dysfunction in Apolipoprotein E3 and E4 Mice.Journal of Alzheimer's disease : JAD · 2021Article
Corrections and comments
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Authors and funding
15 authors at 7 institutions in 1 country.
Funding
Abstract
backgroundPreclinical studies have found differential effects of isoflurane and propofol on the Alzheimer's disease (AD)-associated markers tau, phosphorylated tau (p-tau) and amyloid-β (Aβ).
objectiveWe asked whether isoflurane and propofol have differential effects on the tau/Aβ ratio (the primary outcome), and individual AD biomarkers. We also examined whether genetic/intraoperative factors influenced perioperative changes in AD biomarkers.
methodsPatients undergoing neurosurgical/otolaryngology procedures requiring lumbar cerebrospinal fluid (CSF) drain placement were prospectively randomized to receive isoflurane (n = 21) or propofol (n = 18) for anesthetic maintenance. We measured perioperative CSF sample AD markers, performed genotyping assays, and examined intraoperative data from the electronic anesthesia record. A repeated measures ANOVA was used to examine changes in AD markers by anesthetic type over time.
resultsThe CSF tau/Aβ ratio did not differ between isoflurane- versus propofol-treated patients (p = 1.000). CSF tau/Aβ ratio and tau levels increased 10 and 24 h after drain placement (p = 2.002×10-6 and p = 1.985×10-6, respectively), mean CSF p-tau levels decreased (p = 0.005), and Aβ levels did not change (p = 0.152). There was no interaction between anesthetic treatment and time for any of these biomarkers. None of the examined genetic polymorphisms, including ApoE4, were associated with tau increase (n = 9 polymorphisms, p > 0.05 for all associations).
conclusionNeurosurgery/otolaryngology procedures are associated with an increase in the CSF tau/Aβ ratio, and this increase was not influenced by anesthetic type. The increased CSF tau/Aβ ratio was largely driven by increases in tau levels. Future work should determine the functional/prognostic significance of these perioperative CSF tau elevations.
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What OpenQuestion holds
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.