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1.
伍沛真 《海南医学》1998,(4):292-293
用正丁醇提取,薄层扫描法测定芍黄片中芍药甙的含量,薄层条件为含0.5CMC-Na和硅胶GF254的薄层板,氯仿-甲醇-醋酸乙酯(8:3:1)为展开剂,扫描测定λs=215nm,λR=290nm,平均回收率为100.25%,RSD为2.27%。  相似文献   

2.
薄层光密度扫描法定量测定麦迪霉素两种组分   总被引:2,自引:0,他引:2  
研究了麦迪霉素中两种主要成分的薄层光密度测定方法。选用0.3mol/LNaOH的0.75%CMC-Na溶液调和制板,以90%甲醇-乙酸乙酯-环己烷(10:45:45)为展开剂,用CS-930薄层扫描仪对样品进行了定量分析。麦迪霉素两种主要成分SF-837和LeucomycinA6的回收率分别为100.5%和99.7%(n=6),RSD分别为2.3%和1.9%。  相似文献   

3.
用双波长薄层扫描法测定优力藤片(YOLITEN)中雷藤素甲(triptolide)的含量。采用硅胶G-CMCNa薄板,样品经氧化铝吸附、氯仿回流提取、浓缩后点样。展开剂为乙酸乙酯-氯仿(1.3:2.0),用岛津CS-9000型扫描仪λ_s=510nm,λ_R=610nm波长处扫描。随行外标两点法计算含量。线性范围为0.1231~0.7386μg,回归方程A=61803.26C+5576.85,r=0.9998。回收率为104.1%,RSD=2.73%(n=6)。  相似文献   

4.
用薄层色谱法测定骨康片中士的宁和马钱子碱含量   总被引:1,自引:0,他引:1  
目的 建立骨康片中士的宁和马钱子碱的含量测定方法。方法 采用双波长薄层扫描法,硅胶GF254薄层板,展开剂为甲苯-丙酮-乙醇-浓氨试液(4:3:1:2),检测波长,士的宁λs=258nm,λR=310nm;马钱子碱λS=301nm,λR=335nm。结果 士的宁和马钱子碱的相关系数分别为0.9996和0.9999,方法的回收率分别为99.83%(RSD=1.03%)和96.09%(RSD=2.01  相似文献   

5.
用反相高效液相色谱法测定了长效异乐定胶囊中5-单硝酸异山梨酯的含量。色谱柱为YWG-ODS C18(250mm×4.6mmI.D,5μm);流动相为甲醇-水(1:1);检测波长为230nm。本法测定平均回收率为99.29%,RSD=0.24%;日内精密度RSD为0.32%;日间精密度RSD为0.92%。与比色法比较,本法测定结果准确可靠。  相似文献   

6.
应用PCR/SSP基因分型方法鉴定HLA-DRB1与北京地区胰岛素依赖型糖尿病的关系。证明IDDM的DR9频率较对照人群明显升高(30.3%vs17.92%,x2=6.97,P<0.01);而DR3在IDDM中虽有升高,但无统计学意义(7.0%vs2.36% x2=3.19,P>0.05);糖尿病患者DR2频率明显降低(7.4%vs19.8%,x2=9.67,P<0.01)。上述结果表明DR9、DR3与IDDM易感呈正相关,而DR2与IDDM抗性相关。  相似文献   

7.
建立了复方布洛芬片的双波长薄层扫描测定方法,研究了薄层色谱条件、薄层散射作用及扫描条件对薄层色谱扫描的影响。采用硅胶GF254-0.75%CMC-Na薄层板,以乙酸乙酯-甲醇-氨水(75:15:10)为展开剂,用岛津CS-9000型薄层扫描仪,双波长反射法锯齿扫描,以随行外标二点法定量对样品进行了分析,布洛芬和伪麻黄碱的回收率分别为100.2%和101.9%,RSD〈3.3%(n=5),三个批号的  相似文献   

8.
采用HPLC法,对18种杨属植物树中酚甙类成分含量进行了测定。所建立的方法「采用Shim-packODS柱,以甲醇(A)和水-四氢呋喃(99:1)(B)为流动相」确实可靠,具良好的线性关系,精密度RSD〈2%,加样回收率salireposide为99.2%,RSD=1.77%,davidianin为98.6%,RSD=3.01%,grandidentatin为102.1%,RSD=0.91%。SG  相似文献   

9.
为同时测定人血浆中肾上腺素和去甲肾上腺素浓度,建立了高效液相色谱-电化学检测方法,采用YWG-C18分析柱,3,4-二羟基苄胺作内标,以0.05m ol/L醋酸盐缓冲液(pH3.0)-甲醇-0.05m ol/LEDTA-Na2(78∶20∶2)为流动相,每1L流动相含SDS200m g,流速为1.0 m l/m in。去甲肾上腺素和肾上腺素及内标的保留时间分别为7.3、8.3 和10.4 分钟,线性范围均为31.25~4000ng/L(NE:r= 0.9999,E:r= 0.9996)。去甲肾上腺素和肾上腺素日内RSD分别低于1.87% 和2.07% ,日间RSD分别小于8.92% 和9.65% ,平均萃取回收率分别为93.5% 和91.3% 。提示本方法快速简便,灵敏准确,适用于嗜铬细胞瘤的鉴别诊断和临床研究。  相似文献   

10.
检测30例慢性肾功能衰竭(CRF)患者血清可溶性白介素2受体(SIL-2R)和外周血T淋巴细胞亚群,结果表明:CRF患者SIL-2R水平显著高于正常对照组(P<0.01),CD3、CD4、CD4/CD8显著低于正常对照组(P<0.01);SIL-2R水平与CD3、CD4呈负相关,与CD8呈正相关;SIL-2R与BUN、SCr呈正相关,CD3、CD4与BUN、SCr呈负相关,CD8与BUN、SCr呈正相关。提示:CRF患者细胞免疫功能低下;SIL-2R水平与T淋巴细胞亚群变化有一定关系;SIL-2R水平与T淋巴细胞亚群变化可作为肾功能恶化的指标。  相似文献   

11.
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   

12.
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   

13.
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   

14.
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   

15.
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   

16.
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   

17.
In recent years, the author of this essay has applied electro-acupuncture combined with the trigger point needle-embedding for treatment of primary trigeminal neuralgia in 31 cases, yielding satis- factory results as reported in the following.  相似文献   

18.
Objective: To explore the role of matrix metalloproteinase-1,2 (MMP-1, MMP-2) and tissue inhibitor of matrix metalloproteinases-1 (TIMP-1) in endometriosis. Methods: The eutopic and ectopic endometria from 40 subjects suffering from endometriosis and regular.endometria from 40 subjects (excluding endometriosis) were collected and examined by in situ hybridization technology and western blot assay. Results: Both expressions of MMP-1 and -2 were stronger in ectopic endometrium and eutopic endometrium than in normal endometrium. On the contrary, the expression of TIMP-1 in ectopic endometrium and eutopic endometrium was lower. The differences were significant (P 〈 0.01 ). Moreover, there was no relationship among the expressions of MMP-1, 2 and TIMP-1 in ectopic endometrium. Conclusion: The expressions of MMP-1, 2 and TIMP-1 lose balance and lack of periodic changes in ectopic endometrium , which explains the biological invasive behavior of endometriosis. It was suggested-that regulating the balance between the MMPs and TIMP-1 should be an ideal therapeutic target to endometriosis.  相似文献   

19.
Prof. SHI Da-zhuo, Ph.D., male, was born on March 20, 1960. Prof. SHI entered the Ph.D. program in 1990 at the China Academy of Chinese Medical Sciences under the supervision of Prof. CHEN Ke-ji, majoring in the treatment of cardiovascular diseases. After receiving his Ph.D. degree in 1993, Prof. SHI started working at the Cardiovascular Center in Xiyuan Hospital affiliated to China Academy of Chinese Medical sciences.  相似文献   

20.
《中国结合医学杂志》2008,14(2):159-159
The 6th National General Congress of Chinese Association of Integrative Medicine (CALM) was convened at 19-20, April 2008 in Beijing. Academician CHEN Zhu, the minister of Ministry of Health indicated at the congress that the integration of Chinese and Western medicine is very well in keeping with the situation of our country and the general rule of development in medical science; and as a good integration of Chinese medicine and Western medicine, it is mutually beneficial and advantageous to both of them. Seeing the creativity shown in integrative medical investigation in theoretic and methodological sides, we should and must persist in and develop it.  相似文献   

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