目的探讨马来酸依那普利叶酸片与硝苯地平控释片联合应用于H型高血压患者中的效果。方法选取2020年6月至2021年6月滕州市中医医院收治的94例H型高血压患者作为研究对象,按照随机数字表法分为两组,各47例。对照组应用硝苯地平控释片治疗...目的探讨马来酸依那普利叶酸片与硝苯地平控释片联合应用于H型高血压患者中的效果。方法选取2020年6月至2021年6月滕州市中医医院收治的94例H型高血压患者作为研究对象,按照随机数字表法分为两组,各47例。对照组应用硝苯地平控释片治疗,观察组在对照组基础上加用马来酸依那普利叶酸片治疗,比较两组临床疗效、糖脂代谢水平、血压控制效果、血浆高同型半胱氨酸(HCY)水平及不良反应发生率。结果观察组治疗总有效率为95.74%,高于对照组的82.98%,差异有统计学意义(P<0.05)。治疗后,两组空腹血糖(FBG)、餐后2 h血糖(2 h PBG)、糖化血红蛋白A1c(HbAlc)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)及总胆固醇(TC)水平均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05);治疗后,两组收缩压、舒张压均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05);治疗后,两组血浆HCY水平均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05)。两组不良反应发生率比较差异无统计学意义。结论马来酸依那普利叶酸片联合硝苯地平控释片治疗H型高血压患者疗效显著,有利于改善患者糖脂代谢,降低血压与HCY水平,且不会增加不良反应的发生,安全性较高,值得临床推广应用。展开更多
This paper presents the effect of reaction factors on wet air oxidation(WAO) of H acid wastewater. Higher COD Cr removal were observed at low initial pH, high reaction temperature and no addition of Na 2SO 4. I...This paper presents the effect of reaction factors on wet air oxidation(WAO) of H acid wastewater. Higher COD Cr removal were observed at low initial pH, high reaction temperature and no addition of Na 2SO 4. Initial oxygen pressure P O 2 should be consistent with the initial H acid concentration. The changes of some indexes were also studied. A significant initial (about 10 min) rapid reduction in COD Cr was observed at 200℃ and 250℃. The decline of pH and the increase of SO 2- 4 concentration were found in all the experiments. Some formic acid and large amount of acetic acid were detected in the treated solution in this study. The analysis of off gas indicated undetectable amount of SO 2 and nitrogen oxides. The biodegradability of H acid solution was greatly improved after WAO treatment. The ratio of BOD 5/COD Cr increased from initial 3 4% to 33 3% after one hour reaction at 160℃ and 3 MPa initial oxygen pressure(initial H acid concentration:10 g/L, mixing speed:300 r/min). The result of WAO of H acid production wastewater was similar to that of WAO of H acid pure compound in distilled water.展开更多
A new depside named salvianolic acid H was isolated from the aqueous extract of Salvia cavaleriei vat.simplicifolia,along with salvianolic acid A,B,C,isosalvianolic acid C,lithospermic acid, rosmarinic acid,R-(+)-β-(...A new depside named salvianolic acid H was isolated from the aqueous extract of Salvia cavaleriei vat.simplicifolia,along with salvianolic acid A,B,C,isosalvianolic acid C,lithospermic acid, rosmarinic acid,R-(+)-β-(3,4-dihydroxyphenyl)lacticacid and protocatechualdehyde.Rosmarinic acid was obtained as the major component.展开更多
Laboratory batch experiments were conducted to study arsenic （As） removal from a naturally contaminated soil using phosphoric acid （H3PO4） and potassium dihydrogen phosphate （KHEPO4）. Both H3PO4 and KHEPO4 prove...Laboratory batch experiments were conducted to study arsenic （As） removal from a naturally contaminated soil using phosphoric acid （H3PO4） and potassium dihydrogen phosphate （KHEPO4）. Both H3PO4 and KHEPO4 proved to reduce toxicity of the soil in terms of soil As content, attaining more than 20% As removal at a concentration of 200 mmol/L. At the same time, acidification of soil and dissolution of soil components （Ca, Mg, and Si） resulted from using these two extractants, especially H3PO4. The effectiveness of these two extractants could be attributed to the replacement of As by phosphate ions （PO4^3-）. The function of H3PO4 as an acid to dissolve soil components had little effects on As removal. KH2PO4 almost removed as much As as H3PO4, but it did not result in serious damage to soils, indicating that it was a more promising extractant. The results of a kinetic study showed that As removal reached equilibrium after incubation for 360 rain, but dissolution of soil components, especially Mg and Ca, was very rapid. Therefore dissolution of soil components would be inevitable if As was further removed. Elovich model best described the kinetic data of As removal among the four models used in the kinetic study.展开更多
Three new Zn（Ⅱ）/Cd（Ⅱ） coordination polymers based on 2-mercaptonicotinic acid （H2mna） with 1,2-di（4-pyridyl）ethylene （dpe） introduced as a bridging ligand have been synthesized via hydrothermal method and ...Three new Zn（Ⅱ）/Cd（Ⅱ） coordination polymers based on 2-mercaptonicotinic acid （H2mna） with 1,2-di（4-pyridyl）ethylene （dpe） introduced as a bridging ligand have been synthesized via hydrothermal method and structurally characterized by single-crystal X-ray diffraction as well as elemental analysis and IR. As reported in this paper, [Zn2（dpe）0.5（mna）2] （1） can be classified as a two-dimensional layer structure in which the 1D chain composed of Zn（Ⅱ） and mna ligands is bridged by dpe ligands, while the complex named [Zn4（dpe）4（mna）4] （2） is a tetra-nuclear cluster compound. These two compounds are further extended to three-dimensional structures by hydrogen bonds along with C–H…π and π…π interactions. Compound 3 with general formular [Cd2（dpe）0.5（mna）2]·H2O belongs to a three-dimensional porous structure in which the 2D metal layers formed by the coordination of Cd（Ⅱ） and mna ligands are connected with the bridging of dpe ligands.展开更多
文摘目的探讨马来酸依那普利叶酸片与硝苯地平控释片联合应用于H型高血压患者中的效果。方法选取2020年6月至2021年6月滕州市中医医院收治的94例H型高血压患者作为研究对象,按照随机数字表法分为两组,各47例。对照组应用硝苯地平控释片治疗,观察组在对照组基础上加用马来酸依那普利叶酸片治疗,比较两组临床疗效、糖脂代谢水平、血压控制效果、血浆高同型半胱氨酸(HCY)水平及不良反应发生率。结果观察组治疗总有效率为95.74%,高于对照组的82.98%,差异有统计学意义(P<0.05)。治疗后,两组空腹血糖(FBG)、餐后2 h血糖(2 h PBG)、糖化血红蛋白A1c(HbAlc)、甘油三酯(TG)、低密度脂蛋白胆固醇(LDL-C)及总胆固醇(TC)水平均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05);治疗后,两组收缩压、舒张压均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05);治疗后,两组血浆HCY水平均低于治疗前,且观察组低于对照组,差异有统计学意义(P<0.05)。两组不良反应发生率比较差异无统计学意义。结论马来酸依那普利叶酸片联合硝苯地平控释片治疗H型高血压患者疗效显著,有利于改善患者糖脂代谢,降低血压与HCY水平,且不会增加不良反应的发生,安全性较高,值得临床推广应用。
文摘This paper presents the effect of reaction factors on wet air oxidation(WAO) of H acid wastewater. Higher COD Cr removal were observed at low initial pH, high reaction temperature and no addition of Na 2SO 4. Initial oxygen pressure P O 2 should be consistent with the initial H acid concentration. The changes of some indexes were also studied. A significant initial (about 10 min) rapid reduction in COD Cr was observed at 200℃ and 250℃. The decline of pH and the increase of SO 2- 4 concentration were found in all the experiments. Some formic acid and large amount of acetic acid were detected in the treated solution in this study. The analysis of off gas indicated undetectable amount of SO 2 and nitrogen oxides. The biodegradability of H acid solution was greatly improved after WAO treatment. The ratio of BOD 5/COD Cr increased from initial 3 4% to 33 3% after one hour reaction at 160℃ and 3 MPa initial oxygen pressure(initial H acid concentration:10 g/L, mixing speed:300 r/min). The result of WAO of H acid production wastewater was similar to that of WAO of H acid pure compound in distilled water.
基金supported by the National Key R&D Program of China(Nos.2022YFC2904501,2019YFC1907803)the National Natural Science Foundation of China(No.52004335)+1 种基金the Open Sharing Fund for Large-scale Instruments and Equipment of Central South University,China(No.CSUZC202132)the Key Laboratory of Hunan Province for Clean and Efficient Utilization of Strategic Calcium-containing Mineral Resources,China(No.2018TP1002)。
文摘A new depside named salvianolic acid H was isolated from the aqueous extract of Salvia cavaleriei vat.simplicifolia,along with salvianolic acid A,B,C,isosalvianolic acid C,lithospermic acid, rosmarinic acid,R-(+)-β-(3,4-dihydroxyphenyl)lacticacid and protocatechualdehyde.Rosmarinic acid was obtained as the major component.
基金This work was supported by the National Natural Science Foundation of China(No.20677080,20477055).
文摘Laboratory batch experiments were conducted to study arsenic （As） removal from a naturally contaminated soil using phosphoric acid （H3PO4） and potassium dihydrogen phosphate （KHEPO4）. Both H3PO4 and KHEPO4 proved to reduce toxicity of the soil in terms of soil As content, attaining more than 20% As removal at a concentration of 200 mmol/L. At the same time, acidification of soil and dissolution of soil components （Ca, Mg, and Si） resulted from using these two extractants, especially H3PO4. The effectiveness of these two extractants could be attributed to the replacement of As by phosphate ions （PO4^3-）. The function of H3PO4 as an acid to dissolve soil components had little effects on As removal. KH2PO4 almost removed as much As as H3PO4, but it did not result in serious damage to soils, indicating that it was a more promising extractant. The results of a kinetic study showed that As removal reached equilibrium after incubation for 360 rain, but dissolution of soil components, especially Mg and Ca, was very rapid. Therefore dissolution of soil components would be inevitable if As was further removed. Elovich model best described the kinetic data of As removal among the four models used in the kinetic study.
基金supported by grants from the 973 Program(2012CB821702)the National Natural Science Foundation of China(21073192,21173223 and 21173220)the Science Foundation of CAS(KJCX2-YW-H20)and of Fujian Province(2009HZ0006-1)
文摘Three new Zn（Ⅱ）/Cd（Ⅱ） coordination polymers based on 2-mercaptonicotinic acid （H2mna） with 1,2-di（4-pyridyl）ethylene （dpe） introduced as a bridging ligand have been synthesized via hydrothermal method and structurally characterized by single-crystal X-ray diffraction as well as elemental analysis and IR. As reported in this paper, [Zn2（dpe）0.5（mna）2] （1） can be classified as a two-dimensional layer structure in which the 1D chain composed of Zn（Ⅱ） and mna ligands is bridged by dpe ligands, while the complex named [Zn4（dpe）4（mna）4] （2） is a tetra-nuclear cluster compound. These two compounds are further extended to three-dimensional structures by hydrogen bonds along with C–H…π and π…π interactions. Compound 3 with general formular [Cd2（dpe）0.5（mna）2]·H2O belongs to a three-dimensional porous structure in which the 2D metal layers formed by the coordination of Cd（Ⅱ） and mna ligands are connected with the bridging of dpe ligands.
