数据日期 2026-10-29 · 生成时间 2026-10-29 06:03
研究问题
Alzheimer’s disease (AD), the most common neurodegenerative disorder worldwide, is characterized by progressive memory loss, cognitive impairment, and behavioral disturbances.
方法
The resulting supernatant was passed through a 0.22 μm organic-phase membrane filter, and the filtrate was sealed and stored at 4 °C until analysis.；Separation was performed on a Vanquish UHPLC system with an ACQUITY UPLC HSS T3 column (1.8 μm, 2.1 mm × 100 mm; Waters Corporation, Milford, MA, USA) at 35 °C.；PDE4B adopts open (1XMY) and closed (4MYQ) conformations during cAMP hydrolysis; because docking against a single conformation risks high false-negative rates [28], both structures were used to reduce missed hits and to assess conformational adaptability.；To assess reliability, each co-crystallized ligand was re-docked into its native pocket under identical parameters, and the root-mean-square deviation (RMSD) between the experimental and predicted poses was calculated; an RMSD below 2.0 Å was considered reliable.
核心结论
Under identical conditions, the reference inhibitor roflumilast (0.1 nM) reduced activity to 43.2 ± 6.5%.；Survival rates at 168 hpf exceeded 95% in all groups. ‖ 结论：Collectively, Parishin B is a developable lead worthy of further target-engagement validation, and the integrated strategy used here may serve as a reference for prioritizing active constituents from other traditional Chinese medicines.
局限
Their combination—restraining microglial inflammation on the one hand and protecting neurons from oxidative injury on the other—mirrors the multi-component, multi-target character often ascribed to G. elata and offers a coherent, if still partly hypothetical, framework for the anti-AD potential of Parishin B that warrants the target-engagement validation outlined below.；Moreover, cellular cAMP levels were not measured in BV-2 cells, and no PDE4B knockdown or other target-dependence experiment was performed; whether the anti-inflammatory effects of Parishin B are mediated through PDE4B therefore remains to be established.；Future studies in APP/PS1 transgenic mice should evaluate behavioral…
对本项目的价值
★★☆☆☆ 脑老化是最大未满足需求，也是终点最难量化的领域；biomarker 与认知读数选择最敏感。最大样本量约 30。
全文来源
PMC JATS 全文（正文 42,920 字符，已过标题/DOI 逐字归属校验）
原文题录
- 英文标题：A Docking-Guided Strategy Prioritizes Parishin B as a Potential Anti-Alzheimer's Constituent of Gastrodia elata Blume.
- 期刊与标识：Biology (Basel) · PMID 42939431 · DOI 10.3390/biology15201830**
B 级证据分级：B 级（同行评议临床前研究，主要为动物模型）
本文核心结论来自动物模型或体外细胞学，属临床前证据，不能外推至人体。「延长健康寿命」「改善功能」等表述在小鼠中的意义，与人类临床结局之间仍有距离。
关于本文的文献来源：本站依据 IMA 知识库「五刊监控·深度文献卡片」撰写，依据已获取的期刊全文（方法、样本量与结论已回到原文核对）；未能获取全文的同批条目另行标注「摘要级」，全程未做任何数值推算补全。