Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D'Alcontres, 31-98166 Messina, Italy.
Cells. 2021 Oct 14;10(10):2756. doi: 10.3390/cells10102756.
BACKGROUND: There is a growing realization that the gut-brain axis signaling is critical for maintaining the health and homeostasis of the Central Nervous System (CNS) and the intestinal environment. The role of Short-Chain Fatty Acids (SCFAs), such as Sodium Propionate (SP) and Sodium Butyrate (SB), has been reported to counteract inflammation activation in the central and Enteric Nervous System (ENS). METHODS: In this study, we evaluated the role of the SCFAs in regulating the pathophysiology of migraine and correlated dysregulations in the gut environment in a mouse model of Nitroglycerine (NTG)-induced migraine. RESULTS: We showed that, following behavioral tests evaluating pain and photophobia, the SP and SB treatments attenuated pain attacks provoked by NTG. Moreover, treatments with both SCFAs reduced histological damage in the trigeminal nerve nucleus and decreased the expression of proinflammatory mediators. Ileum evaluation following NTG injection reported that SCFA treatments importantly restored intestinal mucosa alterations, as well as the release of neurotransmitters in the ENS. CONCLUSIONS: Taken together, these results provide evidence that SCFAs exert powerful effects, preventing inflammation through the gut-brain axis, suggesting a new insight into the potential application of SCFAs as novel supportive therapies for migraine and correlated intestinal alterations.
背景:人们越来越意识到,肠道-大脑轴信号对于维持中枢神经系统(CNS)和肠道环境的健康和稳态至关重要。短链脂肪酸(SCFAs),如丙酸钠(SP)和丁酸钠(SB)的作用,已被报道可以对抗中枢和肠神经系统(ENS)中的炎症激活。
方法:在这项研究中,我们评估了 SCFAs 在调节偏头痛病理生理学中的作用,并在硝化甘油(NTG)诱导的偏头痛小鼠模型中,将肠道环境中的失调与偏头痛相关联。
结果:我们表明,在评估疼痛和畏光的行为测试后,SP 和 SB 治疗可减轻 NTG 引起的疼痛发作。此外,两种 SCFA 的治疗均减轻了三叉神经核中的组织损伤,并降低了促炎介质的表达。NTG 注射后的回肠评估报告称,SCFA 治疗重要地恢复了肠黏膜的改变,以及 ENS 中神经递质的释放。
结论:综上所述,这些结果提供了证据表明 SCFAs 通过肠道-大脑轴发挥强大的作用,预防炎症,这为 SCFAs 作为偏头痛和相关肠道改变的新型支持性治疗方法的潜在应用提供了新的见解。
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