一测多评法同时测定茵栀黄口服液中5种指标性成分的含量

摘 要 目的：建立一测多评(QAMS) 法测定茵栀黄口服液中5种指标性成分的含量。方法: 以黄芩苷为参照物,采用HPLC法,以Venusil MP C18(2) 色谱柱(250 mm×4.6 mm,5 μm) ;流动相为乙腈 0.1%磷酸水溶液,梯度洗脱; 流速:1.0 ml·min^-1;检测波长: 327 nm;柱温：35℃;进样量：10 μl。应用QAMS法测定5种指标性成分之间的相对校正因子,分别采用外标法和一测多评法测定茵栀黄口服液中的5种指标性成分的含量,并对２种方法计算结果进行对比分析,以验证一测多评法的实用性与稳定性。结果: 建立QAMS法用于测定茵栀黄口服液中5种指标性成分的含量,并对6批茵栀黄口服液进行测定,其计算值与测定值的差异较小(P＞0.05) 。结论: QAMS 法用于测茵栀黄口服液中5种指标性成分的含量,方法简单、有效、结果准确,可用于茵栀黄口服液的质量控制,并为后续的一测多评的研究提供参考价值。     

一测多评法同时测定心可宁胶囊中5种指标性成分的研究

摘 要 目的：建立一测多评(QAMS) 法来测定心可宁胶囊中5种指标性成分的含量。方法: 采用HPLC法,以Agilent XDB C18柱(250 mm×4.6 mm,5 μm)为色谱柱,流动相为乙腈 0.05%磷酸水溶液,梯度洗脱,流速1.0 ml·min-1,检测波长210 nm,柱温30℃。以丹酚酸B为内参物建立5种指标性成分之间的相对校正因子,分别采用外标法和一测多评法测定心可宁胶囊中5种指标性成分的含量,并对两种方法测定结果进行对比分析,以验证一测多评法的实用性与稳定性。结果:一测多评法的计算值与外标法测定值间差异无统计学意义(P＞0.05),试验所得校正因子可信。结论:所建立的QAMS 法可用于测定心可宁胶囊中5种指标性成分的含量。     

一测多评法同时测定妇科千金片中5 种指标性成分的研究

摘 要 目的：建立一测多评(QAMS) 的方法用来测定妇科千金片中5种指标性成分的含量。方法: 以阿魏酸为参照物,采用HPLC法,以Hypersil GOLD C18色谱柱(250 mm×4.6 mm,5 μm) ;流动相为乙腈 0.1%磷酸水溶液,梯度洗脱; 流速:1.0 ml·min^-1;检测波长: 254 nm;柱温：30℃;进样量：10 μl。应用QAMS法的方法测定5种指标性成分之间的相对校正因子,分别采用外标法和一测多评法测定妇科千金片中的5种指标性成分的含量,并对２种方法计算结果进行对比分析,以验证一测多评法的实用性与稳定性。结果: 建立QAMS法用于测定妇科千金片中5种指标性成分的含量,并对6批妇科千金片进行测定,其计算值与测定值的差异较小(P＞0.05) 。结论: QAMS 法用于测妇科千金片中5种指标性成分的含量,方法简单、有效、结果准确,可用于妇科千金片的质量控制,并为后续的一测多评的研究提供参考价值。     

一测多评法同时测定逍遥丸中6种指标性成分的研究

摘 要 目的：建立一测多评(QAMS) 的方法用来测定逍遥丸中6种成分的含量。方法: 以甘草酸为参照物,采用HPLC法,以Kromasil C18色谱柱(250 mm×4.6 mm,5 μm) ;流动相为乙腈（A） 0.1%磷酸水溶液（B）为流动相,梯度洗脱：0～10 min,5% A;10～25 min,5 % A→15 % A;20～70 min,15 % A→60 % A; 流速:1.0 ml·min-1;检测波长: 280 nm;柱温：35℃;进样量：10 μl。应用QAMS法的方法测定6种指标性成分之间的相对校正因子,分别采用外标法和一测多评法测定逍遥丸中的6种指标性成分的含量,并对２种方法计算结果进行对比分析,以验证一测多评法的实用性与稳定性。结果:建立QAMS法用于测定逍遥丸中6种指标性成分的含量,并对6批逍遥丸进行测定,其计算值与测定值的差异无统计学意义(P＞0.05) 。结论:QAMS 法用于测逍遥丸中6种指标性成分的含量,方法简单、有效、结果准确,可用于逍遥丸的质量控制,并为后续的一测多评的研究提供参考价值。     

一测多评法同时测定三七伤药片中6种活性成分

摘 要 目的：建立一测多评法(QAMS) 测定三七伤药片中6种活性成分含量。方法: 采用HPLC法,以Waters Sunfire ODS C18柱(250 mm×4.6 mm,5 μm)为色谱柱,流动相为乙腈 水,梯度洗脱,流速为1.0 ml·min-1,检测波长为可变波长（0 min,230 nm;10 min,283 nm;25 min,203 nm）,柱温：30℃,进样量：10 μl。以柚皮苷为参照物,应用QAMS测定芍药苷、人参皂苷Rg1、人参皂苷Rb1、三七皂苷R1和人参皂苷Re的相对较正因子并计算其含量,同时用外标法测定以上6种有效成分的含量,并将两种结果进行分析比校。结果: 一测多评法测得的芍药苷、人参皂苷Rg1、人参皂苷Rb1、三七皂苷R1和人参皂苷Re 5种成分计算值与外标法测定值差异无统计学意义(P＞0.05)。结论: QAMS法可用于三七伤药片6种指标性成分的含量测定,且方法简单、有效、结果准确。     

一测多评法同时测定小儿麻甘颗粒中5种成分含量

摘 要 目的：建立小儿麻甘颗粒中盐酸麻黄碱、苦杏仁苷、甘草苷、黄芩苷、甘草酸铵5种成分的含量一测多评法。方法: 以苦杏仁苷为内参照物,建立盐酸麻黄碱、甘草苷、黄芩苷、甘草酸铵与苦杏仁苷的相对校正因子,分别采用一测多评法与外标法测定5种成分的含量,比较两种方法测得结果的差异,验证一测多评法的可行性。结果:苦杏仁苷与盐酸麻黄碱、甘草苷、黄芩苷、甘草酸铵的相对校正因子分别为1.237,1.318,1.327,0.884,一测多评法与外标法测得结果无显著差异,相对误差小于0.3%。结论:一测多评法运用于小儿麻甘颗粒的含量测定准确可行。     

一测多评法同时测定六味安消胶囊中5种指标性成分的研究

摘 要 目的：建立六味安消胶囊中5种有效成分的一测多评法（QAMS法）,探讨一测多评法在六味安消胶囊质量控制中的应用。方法: 采用HPLC法,使用Agilent XDB C18（250 mm×4.6 mm,5 μm）色谱柱,流动相为甲醇（A） 0.1%磷酸水溶液（B）,梯度洗脱,0～3 min,20% A;3～12 min,20% A→60% A;12～25 min,60% A;25～45 min,60% A→80% A;45～65 min,80% A,体积流量：1.0 ml·min-1;检测波长：225、254 nm;柱温：35 ℃;进样量：20 μl。以芦荟大黄素为内参,分别建立木香烃内酯、去氢木香内酯、大黄素和大黄酚相对于芦荟大黄素的相对校正因子,分别采用外标法和一测多评法测定5 种成分的量,并比较两者结果的相对误差。结果: 建立QAMS法用于测定六味安消胶囊中5种指标性成分的含量,并对5批六味安消胶囊进行测定,其计算值与测定值的差异较小(P＞0.05) 。结论: QAMS 法用于六味安消胶囊中5种指标性成分的含量,方法简单、有效、结果准确,可用于六味安消胶囊的质量控制,并为后续的一测多评法的研究提供参考价值。     

UPLC波长切换法同时测定山茱萸中7个成分的含量

摘 要 目的：建立UPLC波长切换法同时测定山茱萸中没食子酸、齐墩果酸、熊果酸、莫诺苷、当药苷、马钱苷和山茱萸新苷的含量。 方法: 采用Waters Acquituplc BEH C18（2.1 mm×100 mm,1.7 μm）色谱柱,以乙腈 0.3%磷酸溶液为流动相,梯度洗脱,流速0.5 ml·min-1,检测波长为273 nm（没食子酸）、240 nm（当药苷、马钱苷、山茱萸新苷）、360 nm (齐墩果酸、熊果酸),柱温30 ℃,进样量2 μl。 结果: 没食子酸、齐墩果酸、熊果酸、莫诺苷、当药苷、马钱苷和山茱萸新苷检测质量浓度的线性范围分别为3.484～48.771,7.514～105.191,3.078～43.087,26.687～373.623,1.497～20.953,16.816～235.424,2.669～37.366 μg·ml-1（r为0.999 3～0.999 9）;平均加样回收率分别为99.4%,100.4%,98.8%,99.5%,101.5%,100.2%,100.1%（RSD<2.0%,n=6）;精密度、重复性、稳定性（24 h）试验的RSD<2.0%（n=6）。结论: 该方法简单、有效、结果准确,可用于山茱萸中7个成分含量的同时测定。     

HPLC波长切换法同时测定小儿热速清颗粒中9种成分的含量

摘 要 目的：建立高效液相色谱法（HPLC）同时测定小儿热速清颗粒中9种活性成分的含量。 方法: 采用HPLC法,同时测定小儿热速清颗粒中绿原酸、葛根素、连翘酯苷A、黄芩苷、柴胡皂苷a、柴胡皂苷d、连翘苷、大黄素、大黄酚的含量,采用ZORBAX Eclipse XDB C18色谱柱(250 mm×4.6 mm,5 μm),流动相为乙腈(A) 0.05%磷酸溶液 (B),梯度洗脱,检测波长为210 nm（柴胡皂苷a、柴胡皂苷d）、260 nm（黄芩苷、连翘苷、葛根素、大黄素、大黄酚）、330nm（绿原酸、连翘酯苷A）,流速0.8 ml·min-1,柱温30 ℃,进样量10 μl。 结果: 绿原酸、葛根素、连翘酯苷A、黄芩苷、柴胡皂苷a、柴胡皂苷d、连翘苷、大黄素、大黄酚检测质量浓度的线性范围分别为3.00～35.98,61.08～733.0,4.48～53.71,133.7～1 604,4.356～52.27,5.236～62.83,2.736～32.84,6.724～80.69,13.46～161.5 μg·ml-1（r为0.999 1～0.999 8）,平均加样回收率分别为98.5%,98.9%,98.4%,99.1%,98.7%,98.3%,98.2%,98.2%,98.1%（RSD<2.0%,n=6）。结论: 该方法简单、有效、结果准确,可用于小儿热速清颗粒中上述9种活性成分含量的同时测定。     

一测多评法同时测定正天丸中6种指标性成分

目的 建立一测多评（quantitative analysis of multi-components by single-marker,QAMS）法同时测定正天丸中6种指标性成分的含量。方法 采用Agilent XDB C₁₈色谱柱（250 mm×4.6 mm,5 μm）;流动相为乙腈-0.1%磷酸水溶液,梯度洗脱,流速1.0 mL·min^-1,检测波长310 nm,柱温30℃,进样量10 μL。应用QAMS法,以芍药苷为参照物,测定6种指标性成分之间的相对校正因子,分别采用外标法和QAMS法测定正天丸中的6种指标性成分的含量,并对2种方法计算结果进行对比分析,以验证QAMS法的实用性与稳定性。结果 建立了用于测定正天丸中6种指标性成分的QAMS法,并对6批正天丸进行测定,其计算值与测定值的差异较小。结论 本研究建立的QAMS法可测定正天丸中6种指标性成分的含量,方法简单、有效,结果准确,可用于正天丸的质量控制,为完善质量标准提供参考。     

Deamination of beta-phenylethylamine by monoamine oxidase--inhibition by imipramine

The oxidative deamination of tyramine (Tyr), 5-hydroxytryptamine (5-HT), and β-phenylethylamine (PEA) by mitochondrial preparations of rabbit lung and brain was inhibited by imipramine. This tricyclic iminodibenzyl antidepressant drug was most effective in decreasing the deamination of PEA: at 1 × 10^?4M imipramine, deamination of PEA, Tyr and 5-HT was inhibited by approximately 70, 45 and 45 per cent, respectively, when either lung or brain mitochondrial monoamine oxidase (MAO) preparations were used. Imipramine-induced inhibition of MAO was shown to be of a mixed type based on Lineweaver-Burk plots, but was found to be completely reversible. The desmcthyl and didesmethyl derivatives of imipramine were equally as effective as the parent drug in inhibiting the deamination of PEA, whereas the N-oxide analog of imipramine was less effective as an inhibitor of this reaction. These results support the premise that the action of imipramine as a clinically effective antidepressive agent may be related to its inhibitory effect on the specific form of MAO which deaminates PEA.     

Augmentation by serrapeptase of tissue permeation by cefotiam

Cefotiam (CTM) is a new cephalosporin with a broad spectrum of activity against both Gram-positive and Gram-negative microorganisms. Cephalosporins are widely used for prophylaxis of infections in patients undergoing thoracotomy. Augmentation by serrapeptase on tissue permeation of CTM was examined in 35 thoracotomy patients with lung cancer. The subjects were divided into two groups according to the method of the administration of CTM. Group I consisted of 17 subjects, each of whom received a single dose of 2 g of CTM alone by an instillation for 30 minutes. Group II consisted of 18 subjects, each of whom received a combination of CTM and serrapeptase; serrapeptase was given 2 tablets (10 mg) each time for three times/day until the day before surgery, and then CTM was administered by the same procedure. The following results were obtained: Individual difference was observed for the permeation of CTM into tissues. Pathologic differences also affected the permeation. Nevertheless, the CTM levels in pulmonary tissues reached about a half of those in the blood in both the single dose group and the combination group, hence sufficient concentrations exceeding MIC80 for main microorganisms that caused infections in the lung were obtained. The concentrations of CTM in inflammatory tissues have showed lower levels than those of normal tissues in both CTM single dose and the combination groups. Decrease of blood flow volume may have contributed to the reduction in levels of CTM in the inflammatory tissues. The ratio of the concentration of the drug in pulmonary tissues to that in the blood was 29.1 +/- 2.5% in the single dose group, and 44.2 +/- 6.0% in the combination group, the latter showing quite a significant increase (P less than 0.05). Combined administrations of CTM and serrapeptase deserves more trials in the case when surgical treatments of the lung are performed. An antiinflammatory effect of serrapeptase in the respiratory system is expected, and in addition, the combined use of CTM and serrapeptase should stimulate permeation of the antibiotic into tissues.     

Synergism by caffeine and by cocaine of the motor control deficit produced by midazolam

To evaluate the effects of caffeine and cocaine on the impairment of discriminative motor control produced by midazolam, rats were trained to hold a force transducer operated with a paw so that it remained between upper and lower limits of a force band for a continuous 1.5-s period to deliver each food pellet. Acute doses of 3 mg/kg midazolam SC impaired motor performance. Except for one animal, caffeine (10-40 mg/kg IP) had little or no effect on performance, while cocaine (3.75-22.5 mg/kg IP) produced dose-related impairment. When each dose of caffeine was combined with 3 mg/kg midazolam, a marked synergism in motor performance impairment occurred. Cocaine plus midazolam produced mainly an additive synergism. The conspicuous synergistic action of caffeine on the motor control deficit produced by midazolam contrasts with the typical antagonism found between the benzodiazepines and methylxanthines when performance is evaluated by psychomotor tests not requiring fine motor control.     

Antagonism of morphine by beta-melanocyte-stimulating hormone and by tetracosactin

Using the decerebrate—spinal Lloyd preparation morphine depressed evoked mono- and polysynaptic reflex activity, β-melanocyte-stimulating hormone enhanced monosynaptic reflex activity, and tetracosactin had no effect. When morphine injection was preceded either by β-melanocyte-stimulating hormone or by tetracosactin a statistically significant depression was not observed. The stimulant actions of β-melanocyte-stimulating hormone did not appear to account for its capacity to antagonize morphine. The fall of blood pressure which follows the administration of morphine in this preparation was not antagonized by the prior administration of either polypeptide.     

Analgesia induced by brief footshock is inhibited by 5-hydroxytryptamine but unaffected by antagonists of 5-hydroxytryptamine or by naloxone

Exposure to footshock (1 mA) for 30 sec induced a marked analgesia that was enhanced by pretreatment with the 5HT synthesis inhibitor, p-chlorophenylalanine, and attenuated by the 5HT releasing drugs p-chloroamphetamine and fenfluramine, by the 5HT re-uptake inhibitor, fluoxetine and by the 5HT agonists, 5-methoxy-N,N-dimethyltryptamine and MK212. However, agonists, quipazine and trifluoromethylphenylpiperazine, with greated reported affinities for 5HT binding sites on rat brain membranes than MK212 were without effect as were the antagonists metergoline, methysergide, cyproheptadine, mianserine and methiothepin. The specific opioid antagonist naloxone was also without effect. The results in general indicate that analgesia induced by brief footshock (1 mA, 30 sec) is inversely related to 5HT availability but thereis little evidence of involvement of known 5HT receptors.