ArticleJournal of neuroinflammation2023
Smad7 in the hippocampus contributes to memory impairment in aged mice after anesthesia and surgery.
Article in Journal of neuroinflammation, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.
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Who cites it
25 citing papers in PubMed, 47 citations in OpenAlex.
- Article
- 5-O-Methylvisammioside alleviates depression-like behaviors by inhibiting nuclear factor kappa B pathway activation via targeting SRC.Neural regeneration research · 2026Article
- Intraoperative 40 Hz Visual Light Flicker Attenuates Anesthesia/Surgery-Induced Cognitive Impairments in Elderly Mice With Enhanced Cortical-Hippocampal Coherence.CNS neuroscience & therapeutics · 2026Article
- SMAD7 regulates the canonical Wnt signaling through TGF-β cascade crosstalk and SMAD7/β-CATENIN transcription factor complex formation during tooth regeneration.International journal of oral science · 2026Article
- Perioperative neurocognitive disorders: Advances in molecular mechanisms and bioactive molecules.Ageing research reviews · 2025Review
- Inflammation associated microglial expansion disrupts hippocampal glial network communication, driving postoperative neurocognitive impairment.Journal of neuroinflammation · 2025Article
- LncRNA MYL2 Acts as a Sponge for miR-661 to Regulate Postoperative Cognitive Dysfunction.Journal of molecular neuroscience : MN · 2025Article
- Ononin, a Natural Isoflavone Glycoside, Alleviates Postoperative Cognitive Dysfunction in Aged Mice by Regulating Neuroinflammation and Oxidative Stress.Brain and behavior · 2025Article
- Mechanism of the AMPK/SIRT1 pathway in gut dysbiosis-mediated postoperative cognitive dysfunction in aged mice.The international journal of neuropsychopharmacology · 2025Article
- Dihydromyricetin protects hippocampal neurons in sepsis-associated encephalopathy by reducing ER stress-mediated apoptosis and inflammation.Journal of molecular histology · 2025Article
- Preoperative Sleep Deprivation Exacerbates Anesthesia/Surgery-induced Abnormal GABAergic Neurotransmission and Neuronal Damage in the Hippocampus in Aged Mice.Molecular neurobiology · 2025Article
- Nrf2 Ameliorates Sevoflurane-Induced Cognitive Deficits in Aged Mice by Inhibiting Neuroinflammation in the Hippocampus.Molecular neurobiology · 2025Article
- Association between genetic variation rs57095329 of microRNA-146a and development of cognitive impairment after anesthesia: a case-control study in a Chinese Han population.Toxicology research · 2025Article
- SWI/SNF Complex Connects Signaling and Epigenetic State in Cells of Nervous System.Molecular neurobiology · 2025Review
- Sevoflurane versus propofol on immediate postoperative cognitive dysfunction in patients undergoing cardiac surgery under cardiopulmonary bypass: a comparative analysis.Journal of cardiothoracic surgery · 2025Article
- The role of melatonin in affecting cognitive dysfunction in acute sleep deprivation mice through the nuclear factor kappaB pathway and oxidative stress.Translational neuroscience · 2025Article
- Zuogui Pills Improve the Learning and Memory Ability of Brain-Aging Mice through the Estrogen Receptor ERα Methylation Pathway.Combinatorial chemistry & high throughput screening · 2025Article
- Dexmedetomidine suppresses microglial activation in postoperative cognitive dysfunction via the mmu-miRNA-125/TRAF6 signaling axis.Open medicine (Warsaw, Poland) · 2025Article
- The critical role of matrix metalloproteinase 9-mediated microglial polarization in perioperative neurocognitive disorders of aged rats.Frontiers in immunology · 2025Article
- Lingo1 in the hippocampus contributes to cognitive dysfunction after anesthesia and surgery in aged mice.International journal of biological sciences · 2025Article
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Authors and funding
9 authors at 4 institutions in 3 countries.
Funding
Abstract
backgroundPostoperative cognitive dysfunction (POCD) is a common neurological complication following anesthesia and surgery. Increasing evidence has demonstrated that neuroinflammation caused by systemic inflammatory responses during the perioperative period is a key factor in the occurrence of POCD. In addition, SMAD family member 7 (Smad7) has been confirmed to play vital roles in the pathogenesis and treatment of inflammatory diseases, such as inflammatory bowel disease. However, whether Smad7 participates in the regulatory process of neuroinflammation and apoptosis in the development of POCD is still unknown.
methodsIn this study, a POCD mouse model was constructed by unilateral nephrectomy under anesthesia, and cognitive function was assessed using the fear conditioning test and open field test. The expression of Smad7 at the mRNA and protein levels in the hippocampus 3 days after surgery was examined by qRT-PCR, western blot and immunofluorescence assays. Furthermore, to identify whether the elevation of Smad7 in the hippocampus after unilateral nephrectomy contributes to cognitive impairment, the expression of Smad7 in the hippocampal CA1 region was downregulated by crossing Smad7
resultsThe results unequivocally revealed that elevated Smad7 in the hippocampal CA1 region significantly inhibited TGF-β signal transduction by blocking Smad2/3 phosphorylation, which enhanced neuroinflammation and apoptosis in the hippocampus and further led to learning and memory impairment after surgery.
conclusionsOur results revealed that Smad7 contributes to cognitive impairment after surgery by enhancing neuroinflammation and apoptosis in the hippocampus and might serve as a promising therapeutic target for the treatment of memory impairment after anesthesia surgery.
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