川续断皂苷Ⅵ通过JNK信号通路促进骨髓间充质干细胞成骨分化

【目的】探讨川续断皂苷Ⅵ诱导大鼠骨髓间充质干细胞(BMSCs)向成骨细胞方向分化的机制。【方法】全骨髓贴壁法培养大鼠BMSCs。实验分为诱导组,1μmol/L川续断皂苷Ⅵ组,1μmol/L川续断皂苷Ⅵ+5μmol/L SP抑制组,1μmol/L川续断皂苷Ⅵ+10μmol/L SP抑制组,1μmol/L川续断皂苷Ⅵ+20μmol/L SP抑制组等5组。采用茜素红染色和骨钙素定量法检测细胞成骨分化程度;采用碱性磷酸酶(ALP)染色测定ALP活性;采用生物信息学方法预测c-Jun氨基末端激酶(JNK)相关因子。【结果】与诱导组比较,1μmol/L续断皂苷Ⅵ组茜素红染色明显增加,ALP活性增强,骨钙素表达量增加(P0.05)。与1μmol/L川续断皂苷Ⅵ组比较,1μmol/L川续断皂苷Ⅵ+5μmol/L SP抑制组、1μmol/L川续断皂苷Ⅵ+10μmol/L SP抑制组、1μmol/L川续断皂苷Ⅵ+20μmol/L SP抑制组茜素红染色程度降低,ALP活性减弱,骨钙素含量显著减少(P0.05)。生物信息学表明c-Jun和转录激活因子4(ATF4)、骨形态发生蛋白2(BMP2)之间存在直接的相互联系。【结论】川续断皂苷Ⅵ诱导BMSCs成骨分化的机制可能与JNK信号通路的激活有关。     

三仙壮骨胶囊提取工艺研究

目的优选三仙壮骨胶囊水提部位的最佳提取工艺。方法采用高效液相色谱法测定川续断皂苷VI的含量,并以川续断皂苷VI的含量作为指标,采用正交设计试验考察三仙壮骨胶囊的最佳提取工艺。结果最佳提取工艺为：加10倍量的水煎煮2次,每次1 h。结论该提取方法合理、可行,为生产提供了实验依据。     

不同炮制方法对续断中总皂苷和川续断皂苷Ⅵ含量的影响

目的:研究续断生品及不同炮制品中总皂苷与川续断皂苷Ⅵ的含量变化,探讨不同炮制方法对续断中总皂苷和川续断皂苷Ⅵ含量的影响.方法:采用分光光度法测定续断生品及炮制品中总皂苷的含量;采用高效液相色谱法测定川续断皂苷Ⅵ的含量.结果:与续断生品相比较,各炮制品的总皂苷含量略有增加;但炮制后川续断皂苷Ⅵ的含量增加显著.结论:不同炮制方法均能影响续断中川续断皂苷Ⅵ的含量变化,证明了传统炮制方法的合理性.     

不同厂家口炎清产品中绿原酸、灰毡毛忍冬皂苷乙和川续断皂苷乙的含量比较

目的 研究不同厂家口炎清的质量情况,为提高药品标准、正确评价药品质量提供理论依据.方法 采用高效液相色谱(HP LC)法对4个厂家生产的10批口炎清中的主要成分绿原酸、灰毡毛忍冬皂苷乙和川续断皂苷乙的质量分数进行测定,色谱柱为Waters XBridgeTM C18柱(250 mm×4.6 mm,5μm),柱温为30℃,流速为1 mL/min;流动相为乙腈-0.4％(体积分数)醋酸(梯度洗脱),绿原酸采用二极管阵列检测器(PDAD)检测,检测波长为330 nm,灰毡毛忍冬皂苷乙和川续断皂苷乙用蒸发光散射检测器(ELSD)检测,检测条件:雾化室温度60 ℃,漂移管温度65 ℃,N2的载气流量1.6 L/min,进样量8μL.结果 不同厂家口炎清产品中绿原酸、灰毡毛忍冬皂苷乙和川续断皂苷乙质量分数差别较大.口炎清颗粒剂的质量相比胶囊剂和片剂较好;口炎清胶囊中不但灰毡毛忍冬皂苷乙质量分数非常低,而且检测不到川续断皂苷乙;口炎清片样品中灰毡毛忍冬皂苷乙的质量分数却异常高.结论 不同厂家的口炎清产品由于原材料质量、制剂工艺等不同,导致了产品中有效成分的质量分数存在较大差异.     

川续断中化学成分的研究

[目的]研究川续断(Dipsacus asperoides)的化学成分。[方法]采用溶剂提取、重结晶和硅胶色谱方法分离纯化,根据氢谱、碳谱以及与对照品共薄层色谱鉴定化合物的结构。[结果]从川续断的70%乙醇提取物中分离鉴定了10个化合物:β-谷甾醇(1),蔗糖(2),胡萝卜苷(3),乙二醇(4),3-O-α-L-吡喃阿拉伯糖-常春藤皂苷元(5),3-O-α-L-吡喃阿拉伯糖-齐墩果酸-28-O-β-D-吡喃葡萄糖-(1→6)-β-D-吡喃葡萄糖苷(6),木通皂苷D(7),3-O-α-L-吡喃阿拉伯糖-常春藤皂苷元-28-O-β-D-吡喃葡萄糖苷(8),马钱子苷(9),TriplostosideA(10)。[结论]化合物(4)为首次在川续断属植物中分离得到。     

高效液相色谱法测定活血凝胶中川续断皂苷Ⅵ含量

目的:建立活血凝胶剂中川续断皂苷Ⅵ的含量测定方法,为其质量控制提供依据。方法:采用高效液相色谱法进行含量测定。色谱柱为Aglient ZORBAX C18柱(150 mm×4.6 mm,5μm),流动相为乙腈-0.25%磷酸溶液(25∶75),流速为1.0 mL/min,检测波长为212 nm。结果:川续断皂苷Ⅵ在0.37μg～1.12μg范围内线性关系良好,精密度、稳定性符合要求,阴性无干扰,平均加样回收率为96.44%,RSD为1.14%。结论:本研究所建立的川续断皂苷Ⅵ含量测定方法准确、灵敏、重复性好,可以作为评价活血凝胶的质量标准之一。     

川续断科植物的研究进展

从化学成分、药理作用和临床应用三方面综述了川续断科植物最近的研究进展。该科植物主要含三萜皂苷、环烯醚萜苷、黄酮、挥发油等类型的化合物。一些种类所含成分在增强机体免疫功能、抗氧化、抗炎、镇静等方面显示了较好的活性。进一步开展川续断科植物的研究,对更好的发现新的药用活性成分有重要意义。     

环淫羊藿素逆转糖皮质激素所致骨质疏松的机理研究

目的 阐明环淫羊藿素(CICT)逆转糖皮质激素所致骨质疏松作用,并探讨其作用机制。方法 采用泼尼松龙诱发斑马鱼骨质疏松模型,茜素红染色后,荧光倒置显微镜观察CICT对斑马鱼头骨染色情况、计算染色面积和累计光密度;ICP-MS测定各组斑马鱼中的钙和磷元素含量;采用分子对接技术模拟并预测CICT与BMPs的相互作用;采用qPCR检测Runx 2和AKP基因的表达量。结果 与空白组比,经泼尼松龙(25 μmol/L)培养后,可显著降低斑马鱼骨累积光密度和头骨矿化面积(P<0.01),且斑马鱼的Ca和P水平显著降低(P<0.01),Runx 2和AKP基因表达量显著降低(P<0.01);与泼尼松龙组相比,经不同剂量的CICT(0.1、1.0、10.0 μmol/L)干预后,斑马鱼的头骨累积光密度值和骨矿化面积均有显著的提高(P<0.01),斑马鱼Ca和P水平均显著提高(P<0.01);采用分子对接技术研究表明,CICT可与靶蛋白BMPs(BMP-2/BMP-4)稳定对接,对接得分分别为-5.493 256 09和-5.993 616 58;Runx 2和AKP基因表达量有显著增加(P<0.01)。结论 CICT能逆转糖皮质激素所致骨质疏松,这一作用可通过CICT与BMPs蛋白靶点结合,并调节BMPs信号通路而促进成骨分化而发挥抗骨质疏松作用。      

ＨＰＬＣ法测定续断接骨胶囊中川续断皂苷Ⅵ含量

目的：采用高效液相色谱法测定续断接骨胶囊中川续断皂苷Ⅵ的含量。方法色谱柱：Amethyst C18柱(4．6 mm ×250 mm,5μm),流动相：乙腈-水(28∶72),检测波长：212 nm,流速：1．0 mL/min。结果川续断皂苷Ⅵ的质量浓度线性范围为0．019~0．612 mg/mL(r=0．9999),平均加样回收率为100．89%,RSD=1．10%。结论该方法简便快捷,结果准确可靠,可作为续断接骨胶囊的质量控制手段。     

舒筋消痛胶囊质量标准的建立

【目的】建立舒筋消痛胶囊的质量控制标准。【方法】采用薄层色谱层析法对舒筋消痛胶囊的有效成分进行定性分析,然后通过高效液相色谱法对胶囊中续断的主要活性成分川续断皂苷Ⅵ进行含量测定。【结果】TCL鉴定方法专属性强;川续断皂苷Ⅵ在1.9688～19.688μg范围内线性关系良好,平均回收率为99.1%,RSD值为0.33%(n=5)。【结论】所建立的方法操作简单,结果准确,重复性好,可用于舒筋消痛胶囊的质量控制。     

多指标综合评分法优选补正续骨颗粒最佳提取工艺

目的：优选补正续骨颗粒的提取工艺。方法采用 L9（34）正交试验法,以出膏率为考察指标,优选最佳水提取工艺,以川续断皂苷Ⅵ与柚皮苷总含量及出膏率综合评分为评价指标,优选最佳乙醇提取工艺。结果最佳水提取工艺为加6倍量水,提取2次,每次提取1 h。最佳乙醇提取工艺为加6倍量60％乙醇,提取3次,每次2 h。结论优选的提工艺稳定可行,适用于补正续骨颗粒的工业化生产。     

Value of D-Dimers in patients with acute aortic dissection

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.     

Research of combined liver-kidney transplantation model in rats

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.     

BLOOD PRESSURE CHANGE WITH AGE IN SALT-SENSITIVE TEENAGERS

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.     

安心颗粒对急诊经皮冠状动脉介入术后生活质量影响的研究

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.     

The comparative studies of the influences of Urapidil and Nicardipine on sino-atrial node function, atrio-ventricular node function and hemodynamics

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.     

Expression of OPGmRNA and ODFmRNA in the patients of hip fracture due to osteoporosis

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.     

The clinicopathological and immuohistochemical analysis of solid-pseudopapillary tumor of the pancreas： report of 9 cases

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.     

Dynamic Changes in Serum Estradiol and Progesterone levels in Patients of Premenstrual Syndrome with Adverse Flow of Liver-qi

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.     

Real-time Three-dimensional Echocardiography in Assessment of Left Ventricular and Right Ventricular Volumes

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.