An endophytic fungus producing 1,8-cineole from Neolitsea pulchella (Meissn.) Merr. was identified as Annulohypoxylon sp. by phylogenetic analyses of the sequence alignments of ITS rDNA, β-tubulin, Actin and EF1-α. ...An endophytic fungus producing 1,8-cineole from Neolitsea pulchella (Meissn.) Merr. was identified as Annulohypoxylon sp. by phylogenetic analyses of the sequence alignments of ITS rDNA, β-tubulin, Actin and EF1-α. This isolate produces an attractive spectrum of volatile organic compounds (VOCs) with only one dominant component, 1,8-cineole, as identified by gas chromatography-mass spectrometry (GC-MS). The fungus was able to grow in seven media with different carbon sources, and five raw agro-forest residues. The content of 1,8-cineole in the mixed VOCs via fungus reached up to 94.95% and 91.25% relative area in PDA and raw poplar sawdust, respectively. Under optimum test conditions, the fungus produced 1,8-cineole at the 0.764 ppmv in 50 mL head spaces in PDA. Interestingly, 1,8-cineole is an ideal fuel additive for both diesel and gasoline engines. Also, this is the first isolate, in this group of fungi, making cineole, which produces as its primary VOC product which makes it an ideal organism for strain improvement. Such as step will be critical for its ultimate use in biofuel production.展开更多
目的探究血清S100钙结合蛋白A8(S100A8)和程序性死亡配体-1(PD-L1)联合超声检测在子宫内膜癌诊断及预后中的价值。方法选取2020年4月至2022年4月于我院收治的确诊为子宫内膜癌的患者166例即为癌症组,按照国际妇产科联合会(FIGO)标准分...目的探究血清S100钙结合蛋白A8(S100A8)和程序性死亡配体-1(PD-L1)联合超声检测在子宫内膜癌诊断及预后中的价值。方法选取2020年4月至2022年4月于我院收治的确诊为子宫内膜癌的患者166例即为癌症组,按照国际妇产科联合会(FIGO)标准分为Ⅰ期48例、Ⅱ期52例、Ⅲ期42例、Ⅳ期24例。选择同期在我院确诊为子宫内膜增生的患者166例为对照组;使用酶联免疫吸附试验(ELISA)检测血清中S100A8和PD-L1水平;使用阴道超声获取血流频谱测得血流参数:搏动指数(PI)、阻力指数(RI)。采用受试者工作特征(ROC)曲线分析血清S100A8和PD-L1联合超声参数对子宫内膜癌的诊断价值以及预后的预测价值。结果与对照组相比,癌症组患者血清中S100A8和PD-L1水平显著升高(t=10.688、8.605,均P<0.001);与Ⅰ期相比,Ⅱ期、Ⅲ期、Ⅳ期患者血清中S100A8和PD-L1水平显著升高,与Ⅱ期相比,Ⅳ期患者血清中S100A8和PD-L1水平显著升高(P<0.05)。与对照组相比,癌症组PI和RI的值显著降低(t=7.183、6.799,均P<0.001);血清S100A8和PD-L1联合超声参数对子宫内膜癌诊断的曲线下面积(AUC)高于各指标单独诊断的AUC值(Z S100A8 vs.S100A8+PD-L1+PI+RI=6.472,Z PD-L1 vs.S100A8+PD-L1+PI+RI=6.903,Z PI vs.S100A8+PD-L1+PI+RI=7.072,Z RI vs.S100A8+PD-L1+PI+RI=5.987,均P<0.001);与预后良好组相比,预后不良组S100A8、PD-L1水平显著升高,PI、RI水平显著降低(P<0.001);血清S100A8和PD-L1联合超声参数对子宫内膜癌预后预测的AUC高于各指标单独预测的AUC值(Z S100A8 vs.S100A8+PD-L1+PI+RI=2.841,P=0.005;Z PD-L1 vs.S100A8+PD-L1+PI+RI=2.146,P=0.032;Z PI vs.S100A8+PD-L1+PI+RI=6.056,P<0.001;Z RI vs.S100A8+PD-L1+PI+RI=4.370,P<0.001)。结论子宫内膜癌患者血清中S100A8和PD-L1水平显著升高,血清S100A8和PD-L1联合超声能够提高对子宫内膜癌诊断及预后价值。展开更多
文摘An endophytic fungus producing 1,8-cineole from Neolitsea pulchella (Meissn.) Merr. was identified as Annulohypoxylon sp. by phylogenetic analyses of the sequence alignments of ITS rDNA, β-tubulin, Actin and EF1-α. This isolate produces an attractive spectrum of volatile organic compounds (VOCs) with only one dominant component, 1,8-cineole, as identified by gas chromatography-mass spectrometry (GC-MS). The fungus was able to grow in seven media with different carbon sources, and five raw agro-forest residues. The content of 1,8-cineole in the mixed VOCs via fungus reached up to 94.95% and 91.25% relative area in PDA and raw poplar sawdust, respectively. Under optimum test conditions, the fungus produced 1,8-cineole at the 0.764 ppmv in 50 mL head spaces in PDA. Interestingly, 1,8-cineole is an ideal fuel additive for both diesel and gasoline engines. Also, this is the first isolate, in this group of fungi, making cineole, which produces as its primary VOC product which makes it an ideal organism for strain improvement. Such as step will be critical for its ultimate use in biofuel production.
文摘目的探究血清S100钙结合蛋白A8(S100A8)和程序性死亡配体-1(PD-L1)联合超声检测在子宫内膜癌诊断及预后中的价值。方法选取2020年4月至2022年4月于我院收治的确诊为子宫内膜癌的患者166例即为癌症组,按照国际妇产科联合会(FIGO)标准分为Ⅰ期48例、Ⅱ期52例、Ⅲ期42例、Ⅳ期24例。选择同期在我院确诊为子宫内膜增生的患者166例为对照组;使用酶联免疫吸附试验(ELISA)检测血清中S100A8和PD-L1水平;使用阴道超声获取血流频谱测得血流参数:搏动指数(PI)、阻力指数(RI)。采用受试者工作特征(ROC)曲线分析血清S100A8和PD-L1联合超声参数对子宫内膜癌的诊断价值以及预后的预测价值。结果与对照组相比,癌症组患者血清中S100A8和PD-L1水平显著升高(t=10.688、8.605,均P<0.001);与Ⅰ期相比,Ⅱ期、Ⅲ期、Ⅳ期患者血清中S100A8和PD-L1水平显著升高,与Ⅱ期相比,Ⅳ期患者血清中S100A8和PD-L1水平显著升高(P<0.05)。与对照组相比,癌症组PI和RI的值显著降低(t=7.183、6.799,均P<0.001);血清S100A8和PD-L1联合超声参数对子宫内膜癌诊断的曲线下面积(AUC)高于各指标单独诊断的AUC值(Z S100A8 vs.S100A8+PD-L1+PI+RI=6.472,Z PD-L1 vs.S100A8+PD-L1+PI+RI=6.903,Z PI vs.S100A8+PD-L1+PI+RI=7.072,Z RI vs.S100A8+PD-L1+PI+RI=5.987,均P<0.001);与预后良好组相比,预后不良组S100A8、PD-L1水平显著升高,PI、RI水平显著降低(P<0.001);血清S100A8和PD-L1联合超声参数对子宫内膜癌预后预测的AUC高于各指标单独预测的AUC值(Z S100A8 vs.S100A8+PD-L1+PI+RI=2.841,P=0.005;Z PD-L1 vs.S100A8+PD-L1+PI+RI=2.146,P=0.032;Z PI vs.S100A8+PD-L1+PI+RI=6.056,P<0.001;Z RI vs.S100A8+PD-L1+PI+RI=4.370,P<0.001)。结论子宫内膜癌患者血清中S100A8和PD-L1水平显著升高,血清S100A8和PD-L1联合超声能够提高对子宫内膜癌诊断及预后价值。