^1H and ^13C NMR chemical shifts were determined to investigate the interactions of acetone with a room temperature ionic liquid 1-hexyl-3- methylimidazolium bromide [C6mim]Br at various mole fractions. Changes in che...^1H and ^13C NMR chemical shifts were determined to investigate the interactions of acetone with a room temperature ionic liquid 1-hexyl-3- methylimidazolium bromide [C6mim]Br at various mole fractions. Changes in chemical shifts of hydrogen nuclei and of carbon nuclei with the acetone concentration indicated the formation of hydrogen bond between anion of the ionic liquid and methyl protons of acetone. The NMR results were in good agreement with the ab initio computational results.展开更多
2-Benzyl-7-butoxyl-9-isobutyl-1-methyl-β-carboline bromide（H-2-65） was synthesized by the reaction of Harmine with 1-iodobutane via N9-alkylation, demethyl and N2-quaternarization to obtain the new compound. The re...2-Benzyl-7-butoxyl-9-isobutyl-1-methyl-β-carboline bromide（H-2-65） was synthesized by the reaction of Harmine with 1-iodobutane via N9-alkylation, demethyl and N2-quaternarization to obtain the new compound. The results demonstrate that H-2-65 has more remarkable anticancer activities in vitro. The results of 1H NMR, 13 C NMR, DEPT, g COSY, g HSQC, g HMBC, MS, single-crystal X-ray diffraction and elemental analysis showed that the title compound crystallizes in the triclinic system, space group P1 with a = 9.545（5）, b = 11.724（5）, c = 11.839（6） , α = 77.530（6）, β = 87.169（6）, γ = 72.823（5）o, Z = 2, V = 1235.8（10）3, Dc = 1.294 g·cm-3, F（000） = 504, the final R = 0.0453, wR = 0.1262 and S = 1.044.展开更多
In order to define the mortality criteria of planarian objectively,a case study of Dugesia japonica exposed to 1-octyl-3-methylimidazolium bromide([C8mim]Br)was performed followed by a recovery culture.The results sho...In order to define the mortality criteria of planarian objectively,a case study of Dugesia japonica exposed to 1-octyl-3-methylimidazolium bromide([C8mim]Br)was performed followed by a recovery culture.The results showed that defining planarian mortality in light of its body disintegration was appropriate.If the disintegrated tissue of a planarian was more than 1/4 of its body length,it would completely degenerate.However,a planarian would regenerate the lost tissue and return to normal after a few days’recovery culture if the disintegrated part was less than 1/4 of body length.Therefore,we propose to use body disintegration as the endpoint of planarian mortality,i.e.,1/4 body length degenerated is the critical threshold of mortality and survival of planarians when exposed to toxicants.This criterion could be adapted in the standardization of testing protocols and comparability of acute toxicity test or other toxicological research using planarian as the test animal.展开更多
Objective: To study the effects of symbicort turbuhaler combined with tiotropium bromide on serum PCT, TIMP-1, MMP-9, IFN-γ, arterial blood gases and pulmonary function in patients with AECOPD. Methods A total of 90 ...Objective: To study the effects of symbicort turbuhaler combined with tiotropium bromide on serum PCT, TIMP-1, MMP-9, IFN-γ, arterial blood gases and pulmonary function in patients with AECOPD. Methods A total of 90 patients in our hospital with AECOPD during January 2014 to January 2017 were divided into the control group (n=45) and the treatment group (n=45) randomly. The control group was treated with tiotropium bromide;the treatment group was treated with symbicort turbuhaler combined with tiotropium bromide. The two groups were treated for 14 d. That was compared of the serum PCT, TIMP-1, MMP-9, IFN-γ, PaO2, SaO2, PaCO2, MPAP, PASP and PADP of the two groups before and after treatment. Results The serum PCT, TIMP-1, MMP-9, IFN-γ, PaO2, SaO2, PaCO2, MPAP, PASP and PADP of the two groups before treatment have no significantly differences. The serum PCT, TIMP-1, MMP-9 and IFN-γ levels of the two groups after treatment were significantly lower than before treatment. The serum PCT, TIMP-1, MMP-9 and IFN-γ levels of the treatment group after treatment were significantly lower than the control group. The PaO2, SaO2 of the two groups after treatment were significantly higher than before treatment, the PaCO2, MPAP, PASP and PADP of the two groups after treatment were significantly lower than before treatment. The PaO2, SaO2, PaCO2, MPAP, PASP and PADP of the treatment group after treatment were significantly better than the control group. Conclusion Symbicort turbuhaler combined with tiotropium bromide can reduce the serum PCT, TIMP-1, MMP-9, IFN-γlevels and the pulmonary arterial hypertension, improve the lung tissue oxygen supply and the cardiopulmonary function, and it was worthy clinical application.展开更多
The crystal structure and mechanism of the title molecule are discribed. Thiscrystal is orthorhombic, belonging to space group PC21/B with α=1. 002 1 (2) nm, b=1. 483 0(3) nm, c=2. 173 6(4) nm, V=3. 230 39(2) nm3, Z=...The crystal structure and mechanism of the title molecule are discribed. Thiscrystal is orthorhombic, belonging to space group PC21/B with α=1. 002 1 (2) nm, b=1. 483 0(3) nm, c=2. 173 6(4) nm, V=3. 230 39(2) nm3, Z=2, Dc=1.80 g/cm3, R=0. 069 3. The structure was solved by direct method. The tin atom of the title compoundexists in two distorted-trigonal-bipyramidal geometry, defined by two carbon, one bromide,one chloride and one oxygen atoms leading to a five-membered chelate ring. In the structure,the five-membered ring containing the intermolecular O→Sn has a half chair conformation.展开更多
基金Ⅴ. ACKN0WLEDGMENTS This work was supported Science Foundation of China by the National Natural （No.20273019）.
文摘^1H and ^13C NMR chemical shifts were determined to investigate the interactions of acetone with a room temperature ionic liquid 1-hexyl-3- methylimidazolium bromide [C6mim]Br at various mole fractions. Changes in chemical shifts of hydrogen nuclei and of carbon nuclei with the acetone concentration indicated the formation of hydrogen bond between anion of the ionic liquid and methyl protons of acetone. The NMR results were in good agreement with the ab initio computational results.
文摘目的 探究格隆溴铵福莫特罗吸入气雾剂对慢性阻塞性肺疾病(COPD)稳定期患者血清基质金属蛋白酶抑制剂-1(TIMP-1)、白三烯B4(LTB4)及动脉血气分析指标的影响。方法 按简单随机化分组法将2021年3月至2023年9月建德市第一人民医院就诊的COPD稳定期患者分为观察组和对照组,各45例,观察组采用格隆溴铵福莫特罗吸入气雾剂治疗,对照组采用布地奈德福莫特罗吸入粉雾剂(Ⅱ),两组均持续治疗3个月。比较两组患者的临床疗效、治疗期间的不良反应发生情况和急性发作次数。比较两组患者治疗前和治疗3个月后的肺功能指标、血清TIMP-1、LTB4和动脉血气分析指标。结果 治疗3个月后,观察组的总有效率(93.33%)高于对照组(77.78%)(P<0.05)。两组的不良反应发生率差异无统计学意义(P>0.05);观察组急性发作次数[(0.98±0.12)次]低于对照组[(1.11±0.19)次](P<0.05)。治疗3个月后,两组的第1秒用力呼气容积(FEV_1)、用力肺活量(FVC)、最大呼气流量(PEF)和动脉血氧分压(Pa O_(2))均较治疗前提高,观察组FEV_1、FVC、PEF、Pa O_(2)[分别为(2.88±0.41) L、(3.21±0.33) L、(60.13±5.23) L·min^(-1)、(77.17±2.34) mm Hg(1 mm Hg≈0.133 k Pa)]高于对照组[分别为(2.62±0.43) L、(2.94±0.40) L、(57.27±5.27) L·min^(-1)、(75.51±2.20) mm Hg](P<0.05)。治疗3个月后,两组的血清TIMP-1、LTB4和动脉血二氧化碳分压(Pa CO_(2))均较治疗前降低,观察组TIMP-1、LTB4、Pa CO_(2)[分别为(58.32±4.10)μg·L^(-1)、(106.56±6.79) ng·L^(-1)、(46.58±2.42) mm Hg]低于对照组[分别为(60.97±4.36)μg·L^(-1)、(110.23±7.57) ng·L^(-1)、(48.43±2.46) mm Hg](P<0.05)。结论 格隆溴铵福莫特罗吸入气雾剂治疗COPD稳定期患者具有较好的疗效和安全性,有助于改善患者肺功能指标、血清TIMP-1、LTB4和动脉血气分析指标。
基金Supported by the National Key Technology Research and Development Program of the Ministry of Science and Technology of China(No.2012BAI30B00)
文摘2-Benzyl-7-butoxyl-9-isobutyl-1-methyl-β-carboline bromide（H-2-65） was synthesized by the reaction of Harmine with 1-iodobutane via N9-alkylation, demethyl and N2-quaternarization to obtain the new compound. The results demonstrate that H-2-65 has more remarkable anticancer activities in vitro. The results of 1H NMR, 13 C NMR, DEPT, g COSY, g HSQC, g HMBC, MS, single-crystal X-ray diffraction and elemental analysis showed that the title compound crystallizes in the triclinic system, space group P1 with a = 9.545（5）, b = 11.724（5）, c = 11.839（6） , α = 77.530（6）, β = 87.169（6）, γ = 72.823（5）o, Z = 2, V = 1235.8（10）3, Dc = 1.294 g·cm-3, F（000） = 504, the final R = 0.0453, wR = 0.1262 and S = 1.044.
基金supported by the National Natural Science Foundation of China(31471965)the Natural Science Foundation of Henan P rovince(142300410457)the National Student Innovation Training P roject of Henan Normal University(201410476051)
文摘In order to define the mortality criteria of planarian objectively,a case study of Dugesia japonica exposed to 1-octyl-3-methylimidazolium bromide([C8mim]Br)was performed followed by a recovery culture.The results showed that defining planarian mortality in light of its body disintegration was appropriate.If the disintegrated tissue of a planarian was more than 1/4 of its body length,it would completely degenerate.However,a planarian would regenerate the lost tissue and return to normal after a few days’recovery culture if the disintegrated part was less than 1/4 of body length.Therefore,we propose to use body disintegration as the endpoint of planarian mortality,i.e.,1/4 body length degenerated is the critical threshold of mortality and survival of planarians when exposed to toxicants.This criterion could be adapted in the standardization of testing protocols and comparability of acute toxicity test or other toxicological research using planarian as the test animal.
文摘Objective: To study the effects of symbicort turbuhaler combined with tiotropium bromide on serum PCT, TIMP-1, MMP-9, IFN-γ, arterial blood gases and pulmonary function in patients with AECOPD. Methods A total of 90 patients in our hospital with AECOPD during January 2014 to January 2017 were divided into the control group (n=45) and the treatment group (n=45) randomly. The control group was treated with tiotropium bromide;the treatment group was treated with symbicort turbuhaler combined with tiotropium bromide. The two groups were treated for 14 d. That was compared of the serum PCT, TIMP-1, MMP-9, IFN-γ, PaO2, SaO2, PaCO2, MPAP, PASP and PADP of the two groups before and after treatment. Results The serum PCT, TIMP-1, MMP-9, IFN-γ, PaO2, SaO2, PaCO2, MPAP, PASP and PADP of the two groups before treatment have no significantly differences. The serum PCT, TIMP-1, MMP-9 and IFN-γ levels of the two groups after treatment were significantly lower than before treatment. The serum PCT, TIMP-1, MMP-9 and IFN-γ levels of the treatment group after treatment were significantly lower than the control group. The PaO2, SaO2 of the two groups after treatment were significantly higher than before treatment, the PaCO2, MPAP, PASP and PADP of the two groups after treatment were significantly lower than before treatment. The PaO2, SaO2, PaCO2, MPAP, PASP and PADP of the treatment group after treatment were significantly better than the control group. Conclusion Symbicort turbuhaler combined with tiotropium bromide can reduce the serum PCT, TIMP-1, MMP-9, IFN-γlevels and the pulmonary arterial hypertension, improve the lung tissue oxygen supply and the cardiopulmonary function, and it was worthy clinical application.
文摘The crystal structure and mechanism of the title molecule are discribed. Thiscrystal is orthorhombic, belonging to space group PC21/B with α=1. 002 1 (2) nm, b=1. 483 0(3) nm, c=2. 173 6(4) nm, V=3. 230 39(2) nm3, Z=2, Dc=1.80 g/cm3, R=0. 069 3. The structure was solved by direct method. The tin atom of the title compoundexists in two distorted-trigonal-bipyramidal geometry, defined by two carbon, one bromide,one chloride and one oxygen atoms leading to a five-membered chelate ring. In the structure,the five-membered ring containing the intermolecular O→Sn has a half chair conformation.
