Pretreatment with a ketogenic diet inhibits mitochondrial damage in rat models of spinal cord injury via the PGC-1α/Sirt1/Nrf1 pathway | ||
| Iranian Journal of Basic Medical Sciences | ||
| مقاله 7، دوره 28، شماره 11، بهمن 2025، صفحه 1516-1522 اصل مقاله (438.31 K) | ||
| نوع مقاله: Original Article | ||
| شناسه دیجیتال (DOI): 10.22038/ijbms.2025.82683.18565 | ||
| نویسندگان | ||
| Xiaomeng Wang1؛ Weibin Lan1؛ Yang Liao2؛ Haichuan Lu* 1 | ||
| 1Department of Spinal Surgery, Affiliated Longyan First Hospital of Fujian Medical University, Longyan, 364000, Fujian, China | ||
| 2Department of Radiology, Affiliated Longyan First Hospital of Fujian Medical University, Longyan, 364000, Fujian, China | ||
| چکیده | ||
| Objective(s): Spinal cord injury (SCI) often results in poor recovery prospects and a high disability rate. Although the ketogenic diet (KD) was suggested as a neuroprotective agent after SCI, its underlying mechanism remains unclear. Materials and Methods: Rats were divided into three groups: sham-operated controls, SCI with standard diet (SD), and SCI with KD. Following a 2-week dietary pretreatment, the SD and KD groups underwent a cervical level 5 hemi-contusion injury, and their neuromotor functions were monitored for 28 days. The expression levels of PGC-1α, Sirt1, Nrf1, and TOMM20 in the spinal cord tissues were measured using qPCR and immunofluorescence staining. Results: Compared with the SD group, KD pretreatment significantly improved neuromotor recovery and reduced neuronal apoptosis. The expression levels of PGC-1, Sirt1, and Nrf1 in the spinal cord tissues of rats in the KD group were significantly up-regulated. Additionally, KD was found to alleviate neuronal mitochondrial dysfunction by regulating TOMM20 expression. Conclusion: KD pretreatment enhances SCI recovery by modulating the PGC-1α/Sirt1/Nrf1 pathway, improving mitochondrial function, and reducing neuronal death. The study provides new insights into the mechanisms of KD. | ||
| کلیدواژهها | ||
| Apoptosis؛ Ketogenic diet؛ Mitochondria؛ Sirtuin 1؛ Spinal cord injury | ||
| مراجع | ||
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