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J Peiodontol:睾丸素和雄激素受体在雌性大鼠牙周病进展中的作用

2020-05-31 网络 网络

性激素疗法在绝经后症状的治疗中有严格的建议,其中睾丸素(TES)替代可能起潜在作用。然而,尚不清楚TES是否影响女性的慢性炎症和牙槽骨吸收的过程。

性激素疗法在绝经后症状的治疗中有严格的建议,其中睾丸素(TES)替代可能起潜在作用。然而,尚不清楚TES是否影响女性的慢性炎症和牙槽骨吸收的过程。本文中,我们研究了在雌性大鼠结扎诱发的牙周病中,雄激素受体和TES在炎症反应和牙槽骨吸收中的作用。

实验将50只雌性Holtzman大鼠分成五组(n = 10 /组):雄激素受体拮抗剂(氟他胺);雌激素受体拮抗剂(氟维司群); +TES;芳香化酶抑制剂(阿那曲唑);TES+阿那曲唑。通过结扎下颌第一磨牙2周诱导实验性牙周炎。其中,20只动物(n = 10 /组)用作未治疗的结扎或未结扎对照。通过放射学和免疫组织化学分析测量骨吸收水平和破骨细胞的数量。通过多重免疫测定和酶联免疫吸附法(ELISA)测定血清样本和牙周组织中的炎症细胞因子,趋化因子和骨标志物水平。

结果发现,与牙周炎组相比,雄激素受体阻滞显着增加了放射学测量的骨吸收和组织中IL-1α(P <0.05),IL-1β(P <0.001)和IL-10(P <0.01)的水平。补充TSE可显着增加组织样本中的EGF水平,而与芳香酶抑制剂/阿那曲唑联合使用时,可显着增加EGF和VEGF水平(P <0.05)。与牙周炎组相比,这几种治疗方法都不能显着影响破骨细胞的数量。

雄激素受体的激活是调节多种炎症标记的重要因素,受体阻滞显着增加了骨吸收水平。

原文出处:

Joao Paulo Steffens,Role of testosterone and androgen receptor in periodontal disease progression in female rats,journal of periodontology,2020 April,doi:10.1002/JPER.19-0099

 

 

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