ReferenceID 1488

Carnosol alleviates sevoflurane-induced cognitive dysfunction by mediating NF-κB pathway in aged rats

Drug Dev Res

Postoperative Cognitive Dysfunction (POCD) is a neurological disorder of unconsciousness due to cognitive regression after surgical anesthesia. However, the specific mechanism has not yet been clarified. Sevoflurane (SEV

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Reference Id
1488
Evidence Id
18078
Core Evidence Id
18078
Source Reference Id
2987
Herb2 Reference Id
HBREF003784
Subject Paper Key
HBIN019759_35781309
Pubmed Id
35781309
Doi
10.1002/ddr.21963
Paper Title
Carnosol alleviates sevoflurane-induced cognitive dysfunction by mediating NF-κB pathway in aged rats
Paper Abstract
Postoperative Cognitive Dysfunction (POCD) is a neurological disorder of unconsciousness due to cognitive regression after surgical anesthesia. However, the specific mechanism has not yet been clarified. Sevoflurane (SEV) is one of the most commonly used anesthetics in clinical practice, and how SEV mediates the generation of POCD is unclear. Carnosol, a natural ingredient, has been reported to have various beneficial effects such as anti-inflammatory, immune enhancement, and so forth, but how it ameliorates SEV-mediated neurotoxicity remains unclear. This study aimed to induce a POCD model in aged rats by SEV and to elucidate how Carnosol ameliorated SEV-mediated neurotoxicity. The effects of Carnosol on the expression of inflammatory factors in rat hippocampus mediated by SEV were determined by enzyme-linked immunoassay and polymerase chain reaction experiments; the effects of Carnosol on the expressions of Iba-1 and glial fibrillary acidic protein after SEV-mediated activation of rat microglia were clarified by immunofluorescence and Western blotting (WB); The effects of Carnosol on SEV-mediated neuronal apoptosis were studied by terminal deoxynucleotidyl transferase dUTP nick end labeling and WB; the specific signaling pathways regulated by Carnosol were elucidated by WB. The results showed that Carnosol can improve the cognitive dysfunction and reduce neuroinflammation in aged rats induced by SEV; Carnosol can reduce the activation of microglia and inhibit neuronal apoptosis in aged rats induced by SEV; Carnosol can phosphorylate p65 and nuclear factor of kappa light polypeptide gene enhancer in B-cells inhibitor, alpha regulates the nuclear factor kappa-light-chain-enhancer of activated B cells (NF-κB) pathway. Carnosol can attenuate SEV-induced neuroinflammation, prevent microglial activation and inhibit neuronal apoptosis by modulating the NF-κB pathway.
Journal
Drug Dev Res
Publish Year
2022
Experiment Subject
rat
Experiment Type
Animal & Cell Experiment
Phenotype Related
Cognitive Dysfunction; Neurological Disorder Of Unconsciousness
Paper Title Cn
Paper Title En
Carnosol alleviates sevoflurane-induced cognitive dysfunction by mediating NF-κB pathway in aged rats
Bilingual Status
semi_complete