Promethazine modified carbon paste ion selective electrode has been prepared, based on the ion pair of promethazine hydrochloride Pm.Cl with sodium tetraphenyl boron(III) Pm-TPB dissolved in dioctyl phthalate DOP as a...Promethazine modified carbon paste ion selective electrode has been prepared, based on the ion pair of promethazine hydrochloride Pm.Cl with sodium tetraphenyl boron(III) Pm-TPB dissolved in dioctyl phthalate DOP as a pasting liquid. The electrode showed the linear response with mean calibration graph slope of 58 mV/decade at 25℃;at a concentration range and a lower detection limit of 1 × 10-5 -6 × 10-2 M and 8 × 10-6 M promethazine hydrochloride, respectively. The change of pH of the tested solution within the range 4.2 -6.8 did not affect the electrode performance. The electrode showed a very good selectivity toward Pm+ cations with respect to a large number of organic and inorganic cations and compounds. The standard addition and potentiometric titration methods were applied for the determination of promethazine hydrochloride in pure solution and in pharmaceutical preparations with an?average recovery range of 97.3% -101.4% and a mean relative standard deviation (RSD) of 0.35% -1.83 % which were of comparable accuracy and precision to the previously reported works.展开更多
Objective:To explore the effect of cinepazide maleate combined with promethazine hydrochloride in the treatment of emergency vertigo.Methods:48 cases of emergency vertigo patients in our hospital from November 2017 to...Objective:To explore the effect of cinepazide maleate combined with promethazine hydrochloride in the treatment of emergency vertigo.Methods:48 cases of emergency vertigo patients in our hospital from November 2017 to November 2019 were divided into experimental group(24 cases,treated with cinepazide maleate combined with promethazine hydrochloride)and control group (24 cases,treated with cinepazide maleate).The clinical efficacy,symptom relief time,adverse reactions and quality of life were compared.Results:The total effective rate of the experimental group(95.83%,23/24)was higher than that of the control group(75.00%),The remission time of nausea and vomiting(1.75±0.22)d,vertigo(3.54±0.63)d,deafiiess and tinnitus(3.47±0.58)d,night sweats(3.05±0.33)d in the experimental group were shorter than those in the control group,P<0.05;the incidence of adverse reactions in the experimental group(8.33%,2/24)was lower than that in the control group(33.33%),The scores of social function,material life attitude,physical health and psychological function in the experimental group were 59.14±7.23,54.05±8.04,53.58±0.86 and 60.11±8.44 respectively,P<0.05.Conclusion:In the process of clinical treatment of emergency vertigo patients,the combined application of cinepazide maleate and promethazine hydrochloride has definite curative effect,can relieve clinical symptoms in a short time,has less adverse reactions,and improves the quality of life of patients to a certain extent,which is worthy of promotion.展开更多
Promethazine(PHZ)is used as a sedative in veterinary medicine,and its residue can threaten the health of human.The electrochemical detection of PHZ is suitable method for application in the field.However,the tradition...Promethazine(PHZ)is used as a sedative in veterinary medicine,and its residue can threaten the health of human.The electrochemical detection of PHZ is suitable method for application in the field.However,the traditional electroanalysis is difficult to perform directly in meat samples due to matrix interference.This work integrates magnetic solid-phase extraction and differential pulse voltammetry for highly sensitive and selective determination of PHZ in beef and beef liver for the first time.CoFe_(2)O_(4)/graphene coated with C_(18)-functionalized mesoporous silica(MG@mSiO_(2)-C_(18))is synthesized as dispersed magnetic adsorbent to extract PHZ.Magnetic glassy carbon electrode modified with nitrogen-doped hollow carbon microspheres(HCM)attracts the MG@mSiO_(2)-C_(18)with PHZ,and directly detects the PHZ without elution procedure.MG@mSiO_(2)-C_(18)can separate PHZ to avoid the interference of impurities on following detection,and also concentrate PHZ on magnetic electrode.Additionally,the electrode modification with HCM can amplify the electrochemical signal of PHZ.Finally,the integrated PHZ determination method exhibits a wide linear range from 0.08μmol/L to 300μmol/L with a low limit of detection of 9.8 nmol/L.The beef sample analysis presents excellent recovery,demonstrating that this protocol is promising for the rapid and onsite detection of PHZ in real meat samples。展开更多
The interactions of phenothiazine such as chlorpromazine hydrochloride (CPZ·HCl) and promethazine hydrochloride (PZ·HCl), with nucleic acids (NA) have been investigated. The CPZ-NA system can produce very in...The interactions of phenothiazine such as chlorpromazine hydrochloride (CPZ·HCl) and promethazine hydrochloride (PZ·HCl), with nucleic acids (NA) have been investigated. The CPZ-NA system can produce very intense resonance Rayleigh scattering (RRS), but the RRS intensity of the PZ-NA system is very weak. The energy relationship of the two reaction systems has been calculated by the AM1 and B3LYP of density functional methods for quantum chemistry, the binding site and interacting model of CPZ-NA and PZ-NA are studied. The results show that CPZ has strong binding ability with nucleic acids, but PZ hardly react with nucleic acids. It can be expected that RRS method may be a useful means for molecular recognition of nucleic acids and the molecular design of gene medicine in the future. Moreover, the method is used for the quan-titative determination of nucleic acids by employing chlorpromazine hydrochloride as reagent, which has very high sensitivity and good selectivity. Therefore, a sensitive, simple and rapid new method has been developed for the determination of nucleic acids.展开更多
目的分析甲氧氯普胺联合异丙嗪在妊娠剧吐患者中的治疗效果。方法方便选取2020年5月-2022年4月六盘水市人民医院收治的妊娠剧吐患者86例为研究对象,按随机数表法分为两组,各43例。对照组予以甲氧氯普胺,观察组加用异丙嗪,连续治疗1周。...目的分析甲氧氯普胺联合异丙嗪在妊娠剧吐患者中的治疗效果。方法方便选取2020年5月-2022年4月六盘水市人民医院收治的妊娠剧吐患者86例为研究对象,按随机数表法分为两组,各43例。对照组予以甲氧氯普胺,观察组加用异丙嗪,连续治疗1周。对比两组临床疗效、症状改善情况、呕吐症状严重程度、生活质量、不良反应。结果观察组治疗总有效率为93.02%,高于对照组的76.74%,差异有统计学意义(χ^(2)=4.441,P<0.05),观察组的呕吐消失时间、尿酮转阴时间短于对照组,差异有统计学意义(P均<0.05);治疗前,两组孕期恶心呕吐量化表(Pregnancy-unique Quantification of Emesis and Nausea,PUQE)评分与妊娠恶心呕吐生活质量量表(Nausea and Vomiting of Pregnancy Quality of Life Questionnaire,NVPQOL)评分相比,差异无统计学意义(P均>0.05)。治疗后,观察组PUQE评分、NVPQOL评分低于对照组,差异有统计学意义(P均<0.05);两组不良反应比较,差异无统计学意义(P>0.05)。结论甲氧氯普胺+异丙嗪治疗妊娠剧吐患者效果显著,可减轻其呕吐症状,促进尿酮转阴,提升生活质量,且无严重不良反应。展开更多
文摘Promethazine modified carbon paste ion selective electrode has been prepared, based on the ion pair of promethazine hydrochloride Pm.Cl with sodium tetraphenyl boron(III) Pm-TPB dissolved in dioctyl phthalate DOP as a pasting liquid. The electrode showed the linear response with mean calibration graph slope of 58 mV/decade at 25℃;at a concentration range and a lower detection limit of 1 × 10-5 -6 × 10-2 M and 8 × 10-6 M promethazine hydrochloride, respectively. The change of pH of the tested solution within the range 4.2 -6.8 did not affect the electrode performance. The electrode showed a very good selectivity toward Pm+ cations with respect to a large number of organic and inorganic cations and compounds. The standard addition and potentiometric titration methods were applied for the determination of promethazine hydrochloride in pure solution and in pharmaceutical preparations with an?average recovery range of 97.3% -101.4% and a mean relative standard deviation (RSD) of 0.35% -1.83 % which were of comparable accuracy and precision to the previously reported works.
文摘Objective:To explore the effect of cinepazide maleate combined with promethazine hydrochloride in the treatment of emergency vertigo.Methods:48 cases of emergency vertigo patients in our hospital from November 2017 to November 2019 were divided into experimental group(24 cases,treated with cinepazide maleate combined with promethazine hydrochloride)and control group (24 cases,treated with cinepazide maleate).The clinical efficacy,symptom relief time,adverse reactions and quality of life were compared.Results:The total effective rate of the experimental group(95.83%,23/24)was higher than that of the control group(75.00%),The remission time of nausea and vomiting(1.75±0.22)d,vertigo(3.54±0.63)d,deafiiess and tinnitus(3.47±0.58)d,night sweats(3.05±0.33)d in the experimental group were shorter than those in the control group,P<0.05;the incidence of adverse reactions in the experimental group(8.33%,2/24)was lower than that in the control group(33.33%),The scores of social function,material life attitude,physical health and psychological function in the experimental group were 59.14±7.23,54.05±8.04,53.58±0.86 and 60.11±8.44 respectively,P<0.05.Conclusion:In the process of clinical treatment of emergency vertigo patients,the combined application of cinepazide maleate and promethazine hydrochloride has definite curative effect,can relieve clinical symptoms in a short time,has less adverse reactions,and improves the quality of life of patients to a certain extent,which is worthy of promotion.
基金supported by the National Key R&D Program of China(No.2019YFC1605400)the National Natural Science Foundation of China(Nos.21874065 and 22176085)。
文摘Promethazine(PHZ)is used as a sedative in veterinary medicine,and its residue can threaten the health of human.The electrochemical detection of PHZ is suitable method for application in the field.However,the traditional electroanalysis is difficult to perform directly in meat samples due to matrix interference.This work integrates magnetic solid-phase extraction and differential pulse voltammetry for highly sensitive and selective determination of PHZ in beef and beef liver for the first time.CoFe_(2)O_(4)/graphene coated with C_(18)-functionalized mesoporous silica(MG@mSiO_(2)-C_(18))is synthesized as dispersed magnetic adsorbent to extract PHZ.Magnetic glassy carbon electrode modified with nitrogen-doped hollow carbon microspheres(HCM)attracts the MG@mSiO_(2)-C_(18)with PHZ,and directly detects the PHZ without elution procedure.MG@mSiO_(2)-C_(18)can separate PHZ to avoid the interference of impurities on following detection,and also concentrate PHZ on magnetic electrode.Additionally,the electrode modification with HCM can amplify the electrochemical signal of PHZ.Finally,the integrated PHZ determination method exhibits a wide linear range from 0.08μmol/L to 300μmol/L with a low limit of detection of 9.8 nmol/L.The beef sample analysis presents excellent recovery,demonstrating that this protocol is promising for the rapid and onsite detection of PHZ in real meat samples。
基金supported by the National Natural Science Foundation of China(Grant No.20475045)the Municipal Science Foundation of Chongqing City.
文摘The interactions of phenothiazine such as chlorpromazine hydrochloride (CPZ·HCl) and promethazine hydrochloride (PZ·HCl), with nucleic acids (NA) have been investigated. The CPZ-NA system can produce very intense resonance Rayleigh scattering (RRS), but the RRS intensity of the PZ-NA system is very weak. The energy relationship of the two reaction systems has been calculated by the AM1 and B3LYP of density functional methods for quantum chemistry, the binding site and interacting model of CPZ-NA and PZ-NA are studied. The results show that CPZ has strong binding ability with nucleic acids, but PZ hardly react with nucleic acids. It can be expected that RRS method may be a useful means for molecular recognition of nucleic acids and the molecular design of gene medicine in the future. Moreover, the method is used for the quan-titative determination of nucleic acids by employing chlorpromazine hydrochloride as reagent, which has very high sensitivity and good selectivity. Therefore, a sensitive, simple and rapid new method has been developed for the determination of nucleic acids.
文摘目的分析甲氧氯普胺联合异丙嗪在妊娠剧吐患者中的治疗效果。方法方便选取2020年5月-2022年4月六盘水市人民医院收治的妊娠剧吐患者86例为研究对象,按随机数表法分为两组,各43例。对照组予以甲氧氯普胺,观察组加用异丙嗪,连续治疗1周。对比两组临床疗效、症状改善情况、呕吐症状严重程度、生活质量、不良反应。结果观察组治疗总有效率为93.02%,高于对照组的76.74%,差异有统计学意义(χ^(2)=4.441,P<0.05),观察组的呕吐消失时间、尿酮转阴时间短于对照组,差异有统计学意义(P均<0.05);治疗前,两组孕期恶心呕吐量化表(Pregnancy-unique Quantification of Emesis and Nausea,PUQE)评分与妊娠恶心呕吐生活质量量表(Nausea and Vomiting of Pregnancy Quality of Life Questionnaire,NVPQOL)评分相比,差异无统计学意义(P均>0.05)。治疗后,观察组PUQE评分、NVPQOL评分低于对照组,差异有统计学意义(P均<0.05);两组不良反应比较,差异无统计学意义(P>0.05)。结论甲氧氯普胺+异丙嗪治疗妊娠剧吐患者效果显著,可减轻其呕吐症状,促进尿酮转阴,提升生活质量,且无严重不良反应。
