Front Physiol:绝经后牙周炎进展的不同机制

2018-10-16 MedSci MedSci原创

在过去的四十年中,已经认识到牙周病是由特定的细菌感染引起的,并且个体对这些感染和由其造成的损害均不敏感。特定的细菌感染和细菌容易生长的环境会引起免疫反应。参与牙周炎发病的免疫细胞迁移到牙周炎病变并促进疾病的进展。本研究旨在通过卵巢切除术(OVX)诱导雌激素缺乏来模拟绝经后妇女并使用脂多糖(LPS)治疗,从而研究免疫细胞迁移与牙周病进展之间的相关性。 结果显示,牙龈卟啉单胞菌的LPS诱导牙周炎

在过去的四十年中,已经认识到牙周病是由特定的细菌感染引起的,并且个体对这些感染和由其造成的损害均不敏感。特定的细菌感染和细菌容易生长的环境会引起免疫反应。参与牙周炎发病的免疫细胞迁移到牙周炎病变并促进疾病的进展。本研究旨在通过卵巢切除术(OVX)诱导雌激素缺乏来模拟绝经后妇女并使用脂多糖(LPS)治疗,从而研究免疫细胞迁移与牙周病进展之间的相关性。

结果显示,牙龈卟啉单胞菌的LPS诱导牙周炎和牙槽骨的吸收呈剂量依赖性。然而,在OVX和假手术小鼠之间注射LPS后牙槽嵴水平降低没有显示出明显差异。已知基质金属肽酶-9(MMP-9)能够检测牙周炎的进展,但是在OVX和假手术组之间没有显著差异。然而,免疫细胞如T淋巴细胞和中性粒细胞在OVX组中的迁移总量低于假手术组。这些发现可能成为关于牙周病与激素变化之间关系的争议的一个主题。目前,在临床实践中,绝经不是治疗牙周病的主要考虑因素。

该研究表明,绝经后妇女应在治疗感染性牙周病时考虑治疗方法和药物治疗。

原始出处:

Dong-Joon Lee, Lei Wu, et al., Differential Mechanism of Periodontitis Progression in Postmenopause. Front Physiol. 2018; 9: 1098.

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