Sodium 3,5-bis(hydroxyimino)-1-methyl-2,4,6-trioxocyclohexanide C7H5N2NaO5 (I) has been isolated as the only product of the reaction of nitrosation of methylphloroglucinol. The structure of the titled compound has bee...Sodium 3,5-bis(hydroxyimino)-1-methyl-2,4,6-trioxocyclohexanide C7H5N2NaO5 (I) has been isolated as the only product of the reaction of nitrosation of methylphloroglucinol. The structure of the titled compound has been determined from single crystal X-ray diffraction data. The hydrated C7H5N2NaO52.5H2O crystallizes in the monoclinic space group C2/c, with a(?) 16.408(3);b(?) 12.446(3);c(?) 13.716(3);(o) 126.34(3). The planar organic anion exists in a triketo-dihydroxyimino form with the C–O and C–N distances from 1.220(2) to 1.271(2)?? and from 1.292(2) to 1.293?? respectively. In the IR spectrum of I, the sharp absorption band occurred at 1681 cm-1 due to C=O stretching indicating the strong H-interactions. The correlations of theoretical (DFT-B3LYP/aug-cc-pVDZ) and experimental UV-vis absorption spectra in neutral and alkaline ethanolic solutions showed the existence of hydroxyimino-nitroso tautomerism while ionization of I.展开更多
目的探讨肠道屏障功能、IL-6、血沉(erythrocyte sedimentation rate,ESR)指标在克罗恩病合并贫血患者中的变化及应用价值。方法选取2022年6月至2023年4月至南京市第二医院就诊的克罗恩病患者155例。根据血红蛋白检测结果将患者分为贫血...目的探讨肠道屏障功能、IL-6、血沉(erythrocyte sedimentation rate,ESR)指标在克罗恩病合并贫血患者中的变化及应用价值。方法选取2022年6月至2023年4月至南京市第二医院就诊的克罗恩病患者155例。根据血红蛋白检测结果将患者分为贫血组(55例)及非贫血组(100例),对两组间DAO、D-LA、BT、IL-6及ESR水平进行比较,并进行相关统计学分析。结果与非贫血组相比,贫血组患者D-LA水平明显降低,IL-6及ESR水平显著升高,差异有统计学意义(P<0.05),两组间DAO、BT水平差异无统计学意义(P>0.05);在贫血组中,血清D-LA水平与BT水平呈正相关、与IL-6呈负相关;二元Logistic回归分析结果显示,ESR水平是克罗恩病患者贫血的独立影响因素(OR=1.963,P<0.05);D-LA、IL-6及ESR判断克罗恩病合并贫血的ROC曲线下面积(area under the curve,AUC)分别为0.322、0.714、0.737(P均<0.05),DAO及BT的AUC差异无统计学意义。结论克罗恩病合并贫血患者肠道屏障功能、IL-6及ESR水平发生明显变化,做好其分析对克罗恩病患者的贫血发生机制研究以及临床诊疗具有积极意义。展开更多
文摘Sodium 3,5-bis(hydroxyimino)-1-methyl-2,4,6-trioxocyclohexanide C7H5N2NaO5 (I) has been isolated as the only product of the reaction of nitrosation of methylphloroglucinol. The structure of the titled compound has been determined from single crystal X-ray diffraction data. The hydrated C7H5N2NaO52.5H2O crystallizes in the monoclinic space group C2/c, with a(?) 16.408(3);b(?) 12.446(3);c(?) 13.716(3);(o) 126.34(3). The planar organic anion exists in a triketo-dihydroxyimino form with the C–O and C–N distances from 1.220(2) to 1.271(2)?? and from 1.292(2) to 1.293?? respectively. In the IR spectrum of I, the sharp absorption band occurred at 1681 cm-1 due to C=O stretching indicating the strong H-interactions. The correlations of theoretical (DFT-B3LYP/aug-cc-pVDZ) and experimental UV-vis absorption spectra in neutral and alkaline ethanolic solutions showed the existence of hydroxyimino-nitroso tautomerism while ionization of I.
文摘目的探讨肠道屏障功能、IL-6、血沉(erythrocyte sedimentation rate,ESR)指标在克罗恩病合并贫血患者中的变化及应用价值。方法选取2022年6月至2023年4月至南京市第二医院就诊的克罗恩病患者155例。根据血红蛋白检测结果将患者分为贫血组(55例)及非贫血组(100例),对两组间DAO、D-LA、BT、IL-6及ESR水平进行比较,并进行相关统计学分析。结果与非贫血组相比,贫血组患者D-LA水平明显降低,IL-6及ESR水平显著升高,差异有统计学意义(P<0.05),两组间DAO、BT水平差异无统计学意义(P>0.05);在贫血组中,血清D-LA水平与BT水平呈正相关、与IL-6呈负相关;二元Logistic回归分析结果显示,ESR水平是克罗恩病患者贫血的独立影响因素(OR=1.963,P<0.05);D-LA、IL-6及ESR判断克罗恩病合并贫血的ROC曲线下面积(area under the curve,AUC)分别为0.322、0.714、0.737(P均<0.05),DAO及BT的AUC差异无统计学意义。结论克罗恩病合并贫血患者肠道屏障功能、IL-6及ESR水平发生明显变化,做好其分析对克罗恩病患者的贫血发生机制研究以及临床诊疗具有积极意义。
