目的通过与SL-PLUS标准假体比较,探讨采用SL-PLUS MIA股骨柄假体行人工全髋关节置换术(total hip arthroplasty,THA)的近期疗效。方法回顾分析2011年6月-12月采用SL-PLUS MIA股骨柄假体行THA的33例38髋患者(试验组)临床资料,并与同期35...目的通过与SL-PLUS标准假体比较,探讨采用SL-PLUS MIA股骨柄假体行人工全髋关节置换术(total hip arthroplasty,THA)的近期疗效。方法回顾分析2011年6月-12月采用SL-PLUS MIA股骨柄假体行THA的33例38髋患者(试验组)临床资料,并与同期35例40髋采用SL-PLUS标准假体行THA的患者(对照组)比较。两组患者性别、年龄、病程、病因及术前髋关节活动度、Harris评分比较,差异均无统计学意义(P>0.05),具有可比性。记录两组切口长度、手术时间及术中出血量,术后采用Harris评分评估髋关节功能改善情况,检查髋关节活动度,复查X线片了解假体位置。结果试验组切口长度、手术时间均较对照组缩短,术中出血量亦显著降低,差异均有统计学意义(P<0.05)。术后两组切口均Ⅰ期愈合。患者均获随访,随访时间10～16个月,平均13.6个月。随访时对照组5例5髋及试验组3例3髋有髋关节疼痛不适表现。末次随访时,试验组及对照组患者髋关节活动度分别为(152.48±9.68)°及(152.16±8.18)°、Harris评分分别为(91.4±2.9)分及(90.9±1.8)分,均较术前显著提高(P<0.05);两组间比较差异均无统计学意义(P>0.05)。X线片复查示两组假体位置均良好,无移位、松动及下沉发生。结论与SL-PLUS标准假体比较,采用SL-PLUS MIA股骨柄假体行THA具有手术创伤小、出血少的优点,近期疗效满意,远期疗效需进一步观察。展开更多
Rauwolfia species(Apocynaceae) are medicinal plants well known worldwide due to its potent bioactive monoterpene indole alkaloids(MIAs) such as reserpine,ajmalicine,ajmaline,serpentine and yohimbine.Reserpine,ajmalici...Rauwolfia species(Apocynaceae) are medicinal plants well known worldwide due to its potent bioactive monoterpene indole alkaloids(MIAs) such as reserpine,ajmalicine,ajmaline,serpentine and yohimbine.Reserpine,ajmalicine and ajmaline are powerful antihypertensive,tranquilizing agents used in hypertension.Yohimbine is an aphrodisiac used in dietary supplements.As there is no report on the comparative and comprehensive phytochemical investigation of the roots of Rauwolfia species,we have developed an efficient and reliable liquid chromatography-tandem mass spectrometry(LC–MS/MS) method for ethanolic root extract of Rauwolfia species to elucidate the fragmentation pathways for dereplication of bioactive MIAs using highperformance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry(HPLC–ESI–QTOF–MS/MS) in positive ion mode.We identified and established diagnostic fragment ions and fragmentation pathways using reserpine,ajmalicine,ajmaline,serpentine and yohimbine.The MS/MS spectra of reserpine,ajmalicine,and ajmaline showed C-ring-cleavage whereas E-ring cleavage was observed in serpentine via Retro Diels Alder(RDA).A total of 47 bioactive MIAs were identified and characterized on the basis of their molecular formula,exact mass measurements and MS/MS analysis.Reserpine,ajmalicine,ajmaline,serpentine and yohimbine were unambiguously identified by comparison with their authentic standards and other 42 MIAs were tentatively identified and characterized from the roots of Rauwolfia hookeri,Rauwolfia micrantha,Rauwolfia serpentina,Rauwolfia verticillata,Rauwolfia tetraphylla and Rauwolfia vomitoria.Application of LC–MS followed by principal component analysis(PCA) has been successfully used to discriminate among six Rauwolfia species.展开更多
基金Council of Scientific Industrial Research,India for providing financial support
文摘Rauwolfia species(Apocynaceae) are medicinal plants well known worldwide due to its potent bioactive monoterpene indole alkaloids(MIAs) such as reserpine,ajmalicine,ajmaline,serpentine and yohimbine.Reserpine,ajmalicine and ajmaline are powerful antihypertensive,tranquilizing agents used in hypertension.Yohimbine is an aphrodisiac used in dietary supplements.As there is no report on the comparative and comprehensive phytochemical investigation of the roots of Rauwolfia species,we have developed an efficient and reliable liquid chromatography-tandem mass spectrometry(LC–MS/MS) method for ethanolic root extract of Rauwolfia species to elucidate the fragmentation pathways for dereplication of bioactive MIAs using highperformance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry(HPLC–ESI–QTOF–MS/MS) in positive ion mode.We identified and established diagnostic fragment ions and fragmentation pathways using reserpine,ajmalicine,ajmaline,serpentine and yohimbine.The MS/MS spectra of reserpine,ajmalicine,and ajmaline showed C-ring-cleavage whereas E-ring cleavage was observed in serpentine via Retro Diels Alder(RDA).A total of 47 bioactive MIAs were identified and characterized on the basis of their molecular formula,exact mass measurements and MS/MS analysis.Reserpine,ajmalicine,ajmaline,serpentine and yohimbine were unambiguously identified by comparison with their authentic standards and other 42 MIAs were tentatively identified and characterized from the roots of Rauwolfia hookeri,Rauwolfia micrantha,Rauwolfia serpentina,Rauwolfia verticillata,Rauwolfia tetraphylla and Rauwolfia vomitoria.Application of LC–MS followed by principal component analysis(PCA) has been successfully used to discriminate among six Rauwolfia species.
