瓦尼林衍生物作为抗失忆剂在小鼠的斯科波拉胺诱导的记忆障碍中
Qamar Gul1, Nasiara Karim2, Mohammad Shoaib1
1Department of Pharmacy, University of Malakand, Chakdara Dir Lower, KPK, Pakistan.
Heliyon
|February 29, 2024
概括
新的香草类类似物通过抑制关键酶并作为抗氧化剂来治疗记忆丧失有望出现. 化合物SB-1和SB-3在改善小鼠记忆缺陷方面表现出显著的潜力.
科学领域:
- 药用化学 医学化学
- 神经科学是一个神经科学.
- 药理学 药理学是指药理学的学科.
背景情况:
- 失忆症是全球重要的健康问题,特别影响老年人群.
- 瓦尼林类似物因其治疗潜力而得到认可,包括胆酶抑制.
- 现有的氨酸衍生物显示出作为抗抑郁药,抗阿尔茨海默氏症药物和神经保护药物的前景.
研究的目的:
- 合成具有多种生物活性的新型素类似物 (SB-1至SB-6).
- 评估合成的化合物作为乙胆酶 (AChE) 和丁胆酶 (BChE) 的抑制剂.
- 评估这些化合物的抗氧化能力和体内抗效应.
主要方法:
- 合成了六种新的香草类同类物 (SB-1至SB-6).
- 在体外酶抑制测定对ACHE和BCHE.
- 使用DPPH和ABTS自由基清除试验进行体外抗氧化活性评估.
- 用Y-Maze和新型物体识别测试评估记忆改善的小鼠体内行为研究.
主要成果:
- 化合物SB-1,SB-3,SB-4和SB-6强烈抑制了ACHE,其IC50值低至0.014μM (SB-6).
- 在SB-3中表现出强烈的BCHE抑制 (IC50=0.057μM).
- 所有化合物都显示出强大的抗氧化潜力,SB-3对DPPH有效 (IC50 = 0.305μM),SB-5对ABTS有效 (IC50 = 0.190μM).
- 在体内研究显示,斯科波胺诱导的记忆缺陷显著改善,SB-1和SB-3在Y-Maze和新型对象识别测试中显示出显著的效果.
结论:
- 合成的香草素类似物在体外是ACHE,BCHE和自由基的强有力的抑制剂.
- 化合物SB-1和SB-3在体外和体内表现出优异的疗效,特别是在恢复记忆功能方面.
- SB-1和SB-3是治疗失忆症的有希望的候选药物,需要进一步的毒理评估.
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