目的 香附抗神經(jīng)炎癥活性部位確定及成分分析。方法 基于脂多糖（LPS）誘導BV2細胞炎癥模型，Griess法檢測培養(yǎng)上清液中NO水平評價香附95%乙醇提取物（CR-95E，6.25、12.50、25.00、50.00 μg · mL^-1）、50%乙醇提取物（CR-50E，6.25、12.50、25.00、50.00、100.00 μg·mL^-1）、水提取物（CR-W，6.25、12.50、25.00、50.00、100.00 μg·mL^-1）的抗炎活性；ELISA試劑盒法考察活性部位對模型細胞上清液中腫瘤壞死因子-α（TNF-α）、白細胞介素-1β（IL-1β）和白細胞介素-6（IL-6）含量的影響；采用ELISA法檢測上清液中犬尿氨酸途徑激活關鍵酶吲哚胺2，3-雙加氧酶（IDO）的含量變化；采用氣相色譜-質(zhì)譜聯(lián)用（GC-MS）技術對CR-95E進行化學成分定性分析，與NIST MS search 2.0質(zhì)譜檢索數(shù)據(jù)庫比對鑒定化合物結(jié)構。結(jié)果 與模型組比較，CR-95E在6.25～50.00 μg· mL^-1時可顯著抑制LPS誘導BV2細胞釋放NO（P＜0.001），而CR-50E和CR-W無效，說明CR-95E具有確切的抗神經(jīng)炎作用。與模型組比較，CR-95E可顯著降低細胞上清液中炎癥因子IL-1β、IL-6和TNF-α的含量（P＜0.05、0.01、0.001），顯著降低IDO的過量表達（P＜0.001）。GC-MS分析，從CR-95E中共鑒定了34個化合物，主要為萜烯類和酮類成分，相對質(zhì)量分數(shù)由高到低依次為異長葉烯酮（19.47%）、石竹烯氧化物（4.98%）、喇叭烯氧化物（-II）（4.01%）、α-古蕓烯（3.66%）等。結(jié)論 香附抗神經(jīng)炎癥活性部位為CR-95E，主要含有萜烯類和酮類成分等低極性成分，可通過抑制細胞NO和炎癥因子的釋放，抑制IDO過表達發(fā)揮抗神經(jīng)炎癥作用。

Objective To evaluate the anti-neuroinflammatory activity and analyze its components of Cyperi rhizome. Methods 95% ethanol extract (CR-95E), 50% ethanol extract (CR-50E) and water extract (CR-W) of Cyperi rhizome were sequential prepared by heating reflux method. The anti-inflammatory activities were screened based on lipopolysaccharide (LPS) induced BV2 cells inflammation model. The content of nitric oxide (NO) and inflammatory factors (IL-1β、TNF-α、IL-6) in supernatant of model cells were detected after the obtained active site treatment. Indoleamine 2, 3-dioxygenase (IDO), the key enzyme of the kynurenine pathway rate-limiting enzyme, was detected by ELISA. The chemical constituents of the obtained active site was analyzed by GCMS, and further identified through searching by NIST MS search 2.0. Results CR-95E significantly decreased the content of NO (P < 0.001) in LPS-induced BV2 cells at 6.25-50.00 μg· mL^-1, but CR-50E and CR-W did no, which suggested that the CR-95E had a definite anti-neuroinflammation effect. Moreover, CR-95E significantly decreased the contents of NO and intracellular inflammatory factors such as IL-1β, IL-6 and TNF-α. In addition, CR-95E could significantly reduce the overexpression of IDO, suggesting that CR-95E might play a role in cell protection and regulating neuronal dysfunction through inhibiting the accumulation of toxic metabolites caused by abnormal activation of kynurenine pathway. As a result, 34 compounds were identified by NIST MS Search 2.0, including isolongifolene (19.47%), caryophyllene oxide (4.98%), ledene oxide-(II) (4.01%), α-paleobrassene (3.66%). Conclusion The anti-neuroinflammatory components of Cyperi rhizome concentrate on low polarity components mainly including terpenes and ketones. Its plays an anti-neuroinflammation role through inhibiting the release of NO and inflammatory factor sby regulated the NF-κB inflammatory signaling pathway and kynurenine pathway. Our study provided scientific data for the discovery and mechanism of anti-neuroinflammatory components of Cyperi rhizome.

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國家自然科學基金資助項目（81973461）；中國醫(yī)學科學院醫(yī)學與健康科技創(chuàng)新工程項目（2021-I2M-1-028）