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《贵阳中医学院学报》2021,(2)
目的:通过对10批次不同产地的生品白芍、炒白芍及酒润麸炒白芍进行研究,建立其质量标准。方法:采用HPLC测定芍药苷及芍药内酯苷含量,进行显微鉴别、薄层鉴别,对水分、灰分、酸不溶性灰分、浸出物含量等指标进行测定,并分析评价。结果:10批次白芍样品薄层色谱鉴定中,供试品与对照药材及对照品斑点清晰、一致。生品白芍、炒白芍、酒润麸炒白芍水分分别不得过13.0%、10.0%、10.0%,醇溶性浸出物分别不得少于13.0%、15.0%、15.0%,水溶性浸出物均不得少于22.0%,总灰分均不得过4.0%,酸不溶性灰分均不得过0.5%,芍药苷含量均不得少于1.5%,芍药内酯苷的含量均不得少于0.3%。结论:建立生品白芍及其炮制品饮片质量评价标准。 相似文献
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目的建立丝瓜络三种不同炮制品(丝瓜络(块)、炒丝瓜络、丝瓜络炭)的质量标准。方法分别考察不同来源样品的性状、水分、灰分、酸不溶灰分等项目、建立TLC鉴别方法。结果14批样品各项指标有一定差异,新建立的TLC鉴别方法斑点清晰,专属性好。结论药材经不同炮制方法炮制后各项理化指标发生了一定的变化,为制定饮片标准提供了实验依据。 相似文献
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目的 建立香鳞毛蕨药材质量标准,为控制其质量提供试验依据.方法 采用性状、显微鉴别法对香鳞毛蕨药材的性状、显微特征进行描述;参照2015年版《中国药典》四部通则相关方法,对该药材水分、总灰分、酸不溶性灰分、醇溶性浸出物进行测定;采用薄层色谱法,分别以绵马素BB(aspidin BB)和对照药材为对照,对该药材进行定性鉴别;采用紫外分光光度法,以绵马素BB为指标,建立了该药材中总间苯三酚质量分数的测定方法.结果 香鳞毛蕨药材的性状、显微、薄层鉴别方法均具有很好的专属性,6批样品的水分、总灰分酸、不溶性灰分、醇溶性浸出物平均值分别为9.45%、9.38%、1.58%、20.8%,总间苯三酚质量分数以绵马素BB计,为40.78 mg/g.结论 建立了香鳞毛蕨药材质量标准,所建立的质量标准可用于香鳞毛蕨的质量控制. 相似文献
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目的 初步建立百蕊草药材的质量标准.方法 采用性状鉴别、显微鉴别、薄层色谱鉴别法等建立百蕊草的定性鉴别方法;参照《中华人民共和国药典》2015年版四部通则方法测定百蕊草药材的水分、总灰分、酸不溶性灰分、水溶性浸出物.结果 薄层色谱斑点清晰,专属性强,阴性无干扰;初步预定百蕊草药材水分不得超过13.00%,总灰分不得超过... 相似文献
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目的 研究广东紫荆皮的质量标准.方法 采用2015年版<中国药典>中方法对广东紫荆皮药材中的水分、灰分及浸出物进行了测定,对广东紫荆皮药材薄层鉴别的条件及指标成分的质量分数测定条件进行了优化.结果 测得广东紫荆皮药材中水分不得超过15.5%,总灰分不得超过9.24%,70%(体积分数)乙醇热浸出物不得少于27.5%;以羽扇豆醇、没食子酸为对照品的薄层鉴别斑点清晰、分离度好.羽扇豆醇的质量分数测定在0.2160~10.80μg内与峰面积呈良好的线性关系,r=0.9999,平均回收率为96.9%(RSD=2.1%,n=6),样品平均质量分数为12.40 mg/g;而其混淆品未检出此成分.结论 本方法简便、专属性强、重复性好,能区分广东紫荆皮及其混淆品,为评价广东紫荆皮药材的质量标准提供科学依据. 相似文献
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目的建立紫背天葵药材的质量控制标准。方法用聚酰胺薄层色谱法鉴别矢车菊素-3-O-葡萄糖苷;按照《中国药典》方法测定多批药材的水分、总灰分、酸不溶性灰分和水溶性浸出物,确定以上检查项目的限度;用高效液相色谱法进行药材中矢车菊素-3-O-葡萄糖苷的含量测定。结果聚酰胺薄层色谱斑点清晰、专属性强、重现性好;药材水分、总灰分、酸不溶性灰分分别不得过14%、15%、2.5%,沸水煮浸法水溶性浸出物量不得少于13%;紫背天葵药材含矢车菊素-3-O-葡萄糖苷不得少于0.5%。结论建立的质量标准适用于评价紫背天葵药材的质量。 相似文献
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目的:建立蒙药材耧斗菜的薄层色谱鉴别法;制定其水分、灰分、酸不溶性灰分及浸出物的限度检查,为耧斗菜药材的质量标准提供依据。方法:采用薄层色谱法鉴定耧斗菜的有效成分,按照2005年版《中国药典》方法对耧斗菜的浸出物、水分、灰分进行含量测定。结果:测得耧斗菜药材中含有阿魏酸,浸出物不得少于20%,总灰分不得超过11.0%。结论:耧斗菜的薄层色谱鉴别及浸出物、水分、灰分含量可作为蒙药耧斗菜药材质量标准的重要指标之一。 相似文献
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目的: 建立山枝仁的质量标准。方法: 按照相关文献资料进行了药材性状、显微、薄层鉴别方法研究,测定了 10批山枝仁药材的水分、灰分、酸不溶性灰分、浸出物含量。结果: 对山枝仁药材的性状和粉末显微特征进行了描述,建立了其薄层鉴别方法。初步拟定了山枝仁药材常规检查项下的限量标准: 水分不得过 14. 0%,总灰分不得过 5. 0%、酸不溶性灰分不得过 1. 0%,50%乙醇浸出物不得少于 16. 0%。结论: 初步建立了山枝仁药材的质量标准规范,为山枝仁的临床安全合理用药提供科学依据。 相似文献
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目的建立唇香草药材的质量标准,为药用植物资源的开发利用提供科学依据。方法对唇香草原植物进行鉴定,并对其性状进行描述;对唇香草的茎、叶和粉末进行显微鉴别;对唇香草水提液和醇提液化学成分进行理化鉴别;以蒙花苷、咖啡酸、迷迭香酸对照品对唇香草药材采用薄层色谱法进行定性鉴别;测定7批唇香草药材的水分、总灰分、酸不溶性灰分。结果唇香草药材水分不得超过9%,总灰分不得超过12%,酸不溶性灰分不得超过4%。结论建立的质量标准定性方法简便,准确,灵敏度高,重现性好,专属性强,可作为唇香草药材质量控制的参考。 相似文献
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Objective: To evaluatel the value of D-dimers in patients with acute aortic dissection (AAD). Methods: This study consisted of 16 patients with AAD and 27 non-AAD patients. Serum D-dimets were measured by Sta-Liatest D-DI immunoturbidimetric assay. Results: D-dimer level was higher (P < 0.001) in patients with AAD(7.91 ± 5.52 μg/ml) than that in non- AAD group(1.57±1.24 μg/ml). D-dimer was positive (>0.4 μg/ml) in all patients with AAD and in 10 control group patients (37%). Among patients with acute AAD, D-dimers tended to be higher in Stanford A than in Stanford B (8.67 ± 4.31 μg/ml vs. 3.24±1.27 μg/ml, P <0.01). D-dimer values tended to be higher in more extended disease(3.84 ± 1.65 μg/ml, 8.57 ± 3.58 μg/ml and 11.87 ± 5.69 μg/ml in thoracic aorta, thoracic and abdominal aorta, thoracic and abdominal aorta and iliacal arteries, respectively, P < 0.05 for both 8.57 ± 3.58 and 11.87 ± 5.69 vs. 3.84 ± 1.65 ). Including the control group into the analysis, we found a sensitivity of 100%, a negative predictive value of 100%, and a specificity of 66% and a positive predictive value of 64% for D-dimer in diagnosis of AAD in our patients with suspected AAD. Conclusion: D-dimer was elevated in patients with AAD. A negative D-dimer test result could be useful in excluding AAD. 相似文献
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Jiageng Zhu Jun Li Ruipeng Ji Jianghao Su Mingshun Shen Zhigang Cao 《南京医科大学学报(自然科学版)》2007,21(2):125-128
Objective: To set up a simple and reliable rat model of combined liver-kidney transplantation. Methods: SD rats served as both donors and recipients. 4℃ sodium lactate Ringer's was infused from portal veins to donated livers,and from abdominal aorta to donated kidneys, respectively. Anastomosis of the portal vein and the inferior vena cava (IVC) inferior to the right kidney between the graft and the recipient was performed by a double cuff method, then the superior hepatic vena cava with suture. A patch of donated renal artery was anastomosed to the recipient abdominal aorta. The urethra and bile duct were reconstructed with a simple inside bracket. Results: Among 65 cases of combined liver-kidney transplantation, the success rate in the late 40 cases was 77.5%. The function of the grafted liver and kidney remained normal. Conclusion: This rat model of combined liver-kidney transplantation can be established in common laboratory conditions with high success rate and meet the needs of renal transplantation experiment. 相似文献
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Tao Ye * Zhi-quan Liu Jian-jun Mu Xi-han Fu Jun Yang Bao-lin Gao and Xiao-hong Zhang Department of Cardiology First Hospital of Xi'an Jiaotong University Xi'an Hanzhong Cardiovascular Institute Hanzhong 《中国医学科学杂志(英文版)》2004,19(4):248-251
Objective To observe blood pressure change with age in salt-sensitive teenagers whose salt sensitivity were determined by repeated testing.Methods Salt sensitivity was determined through intravenous infusion of normal saline combined with volume-depletion by oral diuretic furosemide in 55 teenagers. After five years, salt sensitivity was re-examined and subject blood pressure was followed up. Blood pressure changes in salt-sensitive teenagers were compared to that of non-salt sensitive teenagers over five years.Results After 5 years, the repetition rate of salt sensitivity determined by intravenous saline loading is 92.7%. In teenagers with salt sensitivity on the baseline, both the systolic blood pressure increments and increment rates were much higher than non-salt sensitive teenagers (12.7±12.1 mmHg vs. 2.8±5.2 mmHg, P< 0.01; 12.2%± 12.0% vs. 2.5% ±4.4%, P< 0.001,respectively). There was a similar trend for diastolic blood pressure (8.4 ± 6.4 mmHg vs. 3.7 ± 6.4 mmHg, P = 0.052; 13.2% ±10.6 % vs. 6.8%± 10.1%, P = 0.053, respectively).Conclusions Salt sensitivity determined by intravenous saline loading showed good reproducibility. Blood pressure increments with age were much higher in salt-sensitive teenagers than non-salt sensitive teenagers, especially in terms of systolic blood pressure. 相似文献
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目的:评价使用安心颗粒对急诊经皮冠状动脉介入术(PPCI)术后生活质量的影响.方法:将160例接受PPCI的急性ST段抬高型心肌梗死患者随机分为安心颗粒组(术前顿服安心颗粒8.8g,术后安心颗粒4.4 g/次,每日2次)和对照组(仅接受基础药物治疗).所有患者均服用阿司匹林、氯吡格雷和阿托伐他汀.分别在入院时、出院前1d、出院后180 d时,应用心肌梗死多维度量表(MIDAS)、中文版SF-36评价量表对患者生活质量评分.并观察术后30 d以内的出血并发症、血小板减少症发生情况.结果:入院时和出院前1d,两组患者的心肌梗死MIDAS、SF-36量表评分比较无差异(P>0.05);出院后180 d时,与对照组比较,安心颗粒组MIDAS、SF-36评分明显减低(P<0.05);组内与入院时比较,两组出院前1d、出院后180 d时,MIDAS、SF-36评分均降低(P<0.05).两组患者在随访期间均无大量出血、少量出血、重度和极重度血小板减少症发生,安心颗粒组有4例、对照组有7例发生不明显出血(P>0.05).两组发生轻度血小板减少症的患者数比较无差异(P>0.05).结论:PPCI使用安心颗粒,能改善急性ST段抬高型心肌梗死患者的生活质量,且不增加出血风险. 相似文献
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Jingming Zhu Ningning Hui Xiuhong Jiang Huaxing Zhang Chengzhang Fu 《南京医科大学学报(自然科学版)》2007,21(6):386-389
Objective:To investigate the influences of urapidil and nicardipine on rabbit sinus function,atrio-ventricular node function and hemodynamics.Methods:Thirty-two Angora's rabbits were selected and randomly divided into four groups.U1 group:urapidil 0.25 mg/kg;U2 group:urapidil 0.5 mg/kg;N1 group:nicardipine 10 μg/kg;N2 group:nicardipine 20 μg/kg.All these medicine were administrated within 30 seconds.Measurements were taken before and after the administration of urapidil or nicardipine for the following data:mean blood pressure(MAP),heart rate(HR),sino-atrial conduction time(SACT),maximal sinoatrial recovery time(SNRTmax)corrected sinus node recovery time(CSNRT),index of sinus node recovery time(SNRTI),Wenckebach A-V conduction frequency (WB),and P-R interval.Results:Significant MAP and HR changes were identified in all of the four groups before and after administration of both urapidil and nicardipine.No significant changes could be found in the rest of the parameters.Intergroup analysis showed that SACT and CSNRT of N1 and N2 groups were shorter than those of the U2 group(P<0.01);the MAP decreased(P<0.01)and the HR increased drastically(P<0.01).Conclusions:Neither urapidil(0.25 mg/kg,0.5 mg/kg)nor nicardipine(10μg/kg,20μg/kg)has any significant influence on rabbit sinus function or rabbit atrio-ventricular node function.Nicardipine could be a better choice than urapidil for parafunctional sinus node patients. 相似文献
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Objective:To investigate the gene expression of osteoprotegerin(OPG) and osteoclast differentiation factor(ODF) in the bone tissue of patients with hip fracture due to osteoporosis. Methods:OPGmRNA and ODFmRNA in the bone tissue in 50 cases of osteoporosis sufferers(over 50 years old) with hip fracture(Observer Group) and 30 cases of hip facture sufferers with no osteoporosis(Control group) were analyzed with the Semi-Quantitative RT-PCR method. Results:The mRNA expressed of ODF, OPG were both high in the patients with hip fracture. In the control group, the expression of OPG mRNA was observed, while the expression of ODF mRNA was very slight. Conclusion:Aged patients contained all signals including OPG, ODF that are essential for inducing osteoclastogenesis and promoting bone resorption. 相似文献
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The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas: report of 9 cases 总被引:1,自引:0,他引:1
Shaoqin Chen Shengquan Zou Qibao Dai Peisheng Huang Weihua Cai Hong Li 《南京医科大学学报(自然科学版)》2007,21(6):398-401
Objective:To investigate the clinical features, pathological characteristics and immunophenotype of solid-pseudopapillary tumor of the pancreas(SPTP). Methods:Nine surgically treated cases of SPTP were retrospectively reviewed. Hematoxylin and Eosin(HE) staining and immunohistochemical staining were used to analyze all cases, and the general clinical data was collected. Results:Six patients were asymptomatic except for a palpable mass. Two patients complained of vague-epigastric pain. One patient appeared jaundice. The tumor was encapsulated and solid tissues alternately with cystic tissues. Histologically, the histological structure of solid portion was pseudopapillary with a fibrovascular core. Tumor cells were uniform and medium-sized which were arranged in sheets ets or nests or pseudopapillary patterns. Immunohistochemical studies demonstrated that SPTP proved positive in vimentin(9/9 cases), AAT(9/9 cases), NSE(9/9 cases), ACT(7/9 cases), CK20(2/9 cases), CgA(1/9 cases), S-100(3/gcases), PR(4/gcases), Syn(3/9 cases) and CD56(5/9cases), negative in CEA and ER. Conclusion:SPTP is a tumor predominantly occurring in young women frequently without special symptoms. This tumor has various characteristical histological patterns with different immunophenotype. 相似文献
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Objective:To probe into the influence of changes of ovarian hormones on the pathogenesis of the specific sub-type premenstrual syndrome(PMS)and reveal partial microcosmic mechanisms of adverse flow of liver-qi.Methods:Estradiol(E2)and progesterone(P)levels in serum were determined at different phases of menstrual cycle by radioimmunoassay.Results:In the group of PMS with adverse flow of liver-qi.the secretive peak value Of E2 and P at the follicular phase significantly decreased,and the secretive peak value at the luteal phase did not come into being.Conclusions:Low E2 and P secretive peak at the follicular phase and absence of secretive peak at the luteal phase is one of the microcosmic mechanisms of PMS with adverse flow of liver-qi.One of the pathophysiologic mechanisms of specific sub-type PMS is probably the continuous low level of E2and P. 相似文献
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Real-time three-dimensional echocardiography (RT3DE)is a new ultrasound technique that enables dynamic threedimensional visualization and quantification of the heart in real time. Investigation of feasibility and methodology of RT3DE in determining left ventricular (LV) and right ventricular (RV) volumes, RT3DE was performed in 35 normal adults using Philips SONOS 7500 system with a 2-4 MHz matrix array transducer. The 60°×60° "pyramid" volume database was obtained and analyzed on a TomTec echo workstation. Both LV and RV volumes were calculated with four 3DE methods (i.e. apical 2, 4, 8, and 16-plane) through manually tracing ventricular endocardial borders in end diastole and end systole. Stroke volumes were then calculated. LV volume was also measured by 2DE Simpson's rule using GE VIVID 7 ultrasound machine. 相似文献
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Increasing maternal age is the only etiological factor unequivocally linked to Down's syndrome in humans. The occurrence rate of newborns with Down's syndrome is about 1/220 in women over 35 years old. However, the occurrence rate in embryos fertilized in vitro, of the elder woman is unclear. Using FISH we screened the number of chromosome 21 in preimplanted embryos of 5 elderly women (average age, 38.4 years) to study the feasibility and necessity of screening trisomy 21 in embryos in patients over 35 years old at the in vitro fertilization (IVF) center. 相似文献