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Sci Rep:厉害了,阿尔茨海默病药物竟然能让蛀牙再生!

2017-10-16 佚名 生物探索

近期,科学家们发现了一种能够让蛀牙再生修复龋洞的“神器”。令人意外的是,竟然是一种用于治疗阿尔茨海默病的药物——Tideglusib。而这可能使补牙用的填充材料成为历史!

近期,科学家们发现了一种能够让蛀牙再生修复龋洞的“神器”。令人意外的是,竟然是一种用于治疗阿尔茨海默病的药物——Tideglusib。而这可能使补牙用的填充材料成为历史!

伦敦国王学院发表于Scientific Reports期刊上的一项研究发现,这种阿尔茨海默病临床药物——Tideglusib能够促进牙髓内的干细胞再生,修复蛀牙。

通常来说,如果牙齿内的牙髓暴露于外伤或感染中,牙齿就会具有再生牙本质的能力,但这只能产生很薄的一层,不足以填补较大的龋洞。但究人员发现,Tideglusib会刺激牙髓内的干细胞,从而产生新的牙本质。这是因为它能够关闭一种名为gsk-3的酶,最终使牙齿的自我修复能力大大增强。

通过将一种可降解的小型海绵与药物浸泡在一起,并将其插入蛀牙腔内,可以在六周内触发牙本质的生长并修复损伤。这些微小的海绵是由胶原蛋白制成的,因此它们会随着时间的推移而融合,只留下修复的牙齿。

来自伦敦国王学院牙科研究所的Paul Sharpe教授说:“这一简单的方法通过提供牙髓保护和修复牙本质来治疗较大龋洞,这使它成为一种理想的临床的牙科产品。此外,使用一种已经在阿尔茨海默病临床试验中测试过的药物能够让这种牙科治疗迅速进入临床。”

目前,牙医们使用人造填充物,如钙和硅基产品,来修复较大的龋洞。但这些填充物仍在牙齿上,不能分解,这意味着牙齿正常的矿物质水平并不能完全恢复。

口腔健康基金会的首席执行官 Nigel Carter博士说:“这是一种非常有趣和新颖的方法,它显示出巨大的前景,我们将期待它被转化成临床应用,这无疑是治疗牙病的一大进步。”

“创造一种更自然的方法来修复牙齿,不仅可以消除这些问题,而且对患者来说创伤更小。在牙科恐惧症仍然很常见的情况下,使用一种自然的方法来刺激牙本质的更新,对于这些群体来说是一个特别令人欣慰的提议,因为接受治疗往往会引起极大的焦虑。”

迄今为止,该治疗方法只在小鼠的牙齿上使用过,但它被证明能够“填满整个损伤部位”。

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