兔骨髓基质细胞在诱导条件下的成骨特性

目的 观察兔骨髓基质细胞的生长特点及诱导条件下的成骨能力。方法 使用密度梯度离心分离兔骨髓基质细胞进行培养，保留贴壁细胞传代，观察在培养液中添加地塞米松，维生素C，β－甘油磷酸钠条件下骨髓基质细胞生长及成骨分化情况。结果 骨髓基质细胞呈成纤维细胞样表现，增殖能力强。诱导条件下第2代细胞的碱性磷酸酶活性明显增高，10－12d达到最高峰，并且出现矿化结节。结论 使用本实验方法，获得的骨髓基质细胞成骨能力肯定，增殖能力强，可作为骨组织工程的种子细胞。     

大鼠骨髓基质干细胞体外培养及定向诱导分化为成骨细胞的实验研究

目的:研究大鼠骨髓基质干细胞体外培养的生长特点和诱导条件下的成骨能力.方法:通过密度梯度离心和贴壁培养法分离大鼠骨髓基质干细胞,应用含地塞米松、维生素C、β-甘油磷酸钠的诱导培养液定向诱导传代细胞向成骨细胞分化,并检测碱性磷酸酶活性及细胞矿化作用.结果:骨髓基质干细胞呈成纤维细胞样生长,增殖能力强,生长迅速.诱导条件下细胞的碱性磷酸酶活性明显增高,并且出现矿化结节.结论:骨髓基质干细胞易于分离培养及体外扩增,诱导条件下成骨能力肯定,适合作为骨组织工程的种子细胞.     

大鼠骨髓基质细胞的生长特点和在诱骨条件下的成骨特性

目的 研究大鼠骨髓基质细胞(rMSCs)的生长特点和在诱导条件下的成骨特性。方法 使用密度梯度法分离成年大鼠骨髓基质细胞进行培养,保留贴壁细胞传代,观察、测试在培养液中添加成骨诱导剂地塞米松（Dex)10^-8mol/L、β-甘油磷酸钠（β-GP）10mmol/L,抗坏血酸（AA）50μg/ml条件下骨髓基质细胞的生长变化和成骨分化。结果 形态学观察表明,rMSCs贴壁细胞呈集落生长,有成纤维细胞样外观,利用MTT法和流式细胞术（FCM）测定增殖的结果表明,传代次数增加,rMSCs的增殖活性升高。成骨诱导剂促进骨髓基质细胞的增殖,而且对多次传代细胞促增殖作用明显。成骨诱导剂促进骨髓基质细胞成骨、在诱导3周时即出现明显的钙化结节。组织化学染色结果显示,非诱导条件下MSCs的碱性磷酸酶（ALP）水平会随传代而升高,传3代rMSCs的ALP的表达较弱,诱导一周后ALP的表达明显升高,超过未加诱导剂的传一代大鼠成骨细胞（OB）的ALP表达。结论 本实验表明所培养的rMSCs仍处于低分化水平,具有骨祖细胞的特性。     

骨髓基质细胞体外成骨能力的实验研究

目的 研究骨髓基质细胞(BMSc)的体外成骨能力，为骨组织工程研究提供细胞来源。方法 采用密度梯度离心法将兔BMSc自小量骨髓中分离培养，并观察第2代BMSc在地塞米松、维生素C、β-甘油磷酸钠诱导条件下的生长及成骨分化情况。结果 BMSc呈成纤维细胞样表现，增殖能力强，在诱导条件下碱性酸酶活性明显增高，并出现矿化结节。结论 BMSc体外增殖能力强，成骨能力肯定。地塞米松、维生素C、β-甘油磷酸钠可促进BMSc向成骨细胞分化。     

大鼠骨髓基质细胞的生长特点和在诱骨条件下的成骨特性

目的　研究大鼠骨髓基质细胞 (r MSCs)的生长特点和在诱导条件下的成骨特性。方法　使用密度梯度法分离成年大鼠骨髓基质细胞进行培养 ,保留贴壁细胞传代 ,观察、测试在培养液中添加成骨诱导剂地塞米松 (Dex) 10 - 8mol/ L、β-甘油磷酸钠 (β- GP) 10 mm ol/ L,抗坏血酸 (AA) 5 0 μg/ ml条件下骨髓基质细胞的生长变化和成骨分化。结果　形态学观察表明 ,r MSCs贴壁细胞呈集落生长 ,有成纤维细胞样外观。利用 MTT法和流式细胞术 (FCM)测定增殖的结果表明 ,传代次数增加 ,r MSCs的增殖活性升高。成骨诱导剂促进骨髓基质细胞的增殖 ,而且对多次传代细胞促增殖作用明显。成骨诱导剂促进骨髓基质细胞成骨 ,在诱导 3周时即出现明显的钙化结节。组织化学染色结果显示 ,非诱导条件下 MSCs的碱性磷酸酶 (AL P)水平会随传代而升高。传 3代 r MSCs的 AL P的表达较弱 ,诱导一周后 AL P的表达明显升高 ,超过未加诱导剂的传一代大鼠成骨细胞 (OB)的 AL P表达。结论　本实验表明所培养的 r MSCs仍处于低分化水平 ,具有骨祖细胞的特性。     

全骨髓贴壁法分离培养rBMSCs及成骨诱导探讨

[摘要]　目的 通过研究在体外培养大鼠骨髓基质干细胞(rBMSCs)及其成骨生物学特性,探讨构建骨组织工程种子细胞的方法。方法 通过全骨髓贴壁培养法分离大鼠骨髓基质干细胞,应用含地塞米松、维生素C、β2甘油磷酸钠的诱导培养液定向诱导传代细胞向成骨细胞分化,并检测碱性磷酸酶活性及钙结节茜素红染色反应,进行成骨细胞鉴定。结果 全骨髓贴壁培养下,骨髓基质干细胞增殖能力强,生长迅速,呈成纤维细胞样生长。诱导条件下细胞的碱性磷酸酶活性明显增高,并且钙结节茜素红染色反应阳性。结论 采用全骨髓贴壁培养法,骨髓基质干细胞分离培养及体外扩增更为简便迅速,诱导条件下成骨能力肯定,可为骨组织工程构建提供大量种子细胞。     

体外诱导条件下大鼠骨髓基质细胞骨钙素和Ⅰ型胶原mRNA的表达

目的 研究体外培养大鼠骨髓基质细胞诱导条件下，成骨分化标志骨钙素和Ⅰ型胶原mRNA水平的表达。方法 采用成骨诱导剂（含地塞米松10^-8mol/L,β甘油磷酸钠10mmol/L和抗坏敌国酸AA50μg/ml)对培养状态下的不同代大鼠骨髓基质细胞进行成骨诱导，提取RNA，采用RT-PCR方法，以β-肌动蛋白cDNA为内参照，检测骨钙素和Ⅰ型胶原mRNA的表达。结果 与对照组相比，接受成骨诱导剂作用的大鼠骨髓基质细胞随诱导时间的延长骨钙素和Ⅰ型胶原mRNA出现高表达，且维生素D为诱导骨钙素mRNA表达的必需成分。结论 体外培养的大鼠骨髓基质细胞保持成骨未分化状态，无骨钙素和Ⅰ型胶原mRNA的表达，诱导后可向成骨分化，骨钙素和Ⅰ型胶原mRNA表达升高。     

bFGF对骨髓基质干细胞体外培养及诱导分化时生物学特性的影响

目的 研究碱性成纤维细胞生长因子(bFGF)对骨髓基质干细胞体外培养及定向诱导分化时生物学特性的影响。方法 将兔骨髓基质细胞(BMSC)经淋巴细胞分离液分离培养、传代扩增后，进行定向诱导分化，其中1组的培养液及矿化诱导液中始终含有bFGF。以MTT法描绘细胞生长曲线。结果 MTT法测定结果表明，BMSC加外源bFGF组细胞增殖较BMSC组细胞生长活跃。结论 骨髓基质细胞是一种良好的骨源细胞，具有定向分化能力，bFGF对其定向诱导分化具有良好的促进作用。     

体外诱导条件下大鼠骨髓基质细胞骨钙素和Ⅰ型胶原mRNA的表达

目的　研究体外培养大鼠骨髓基质细胞诱导条件下 ,成骨分化标志骨钙素和 型胶原 m RNA水平的表达。方法　采用成骨诱导剂 (含地塞米松 10 - 8mol/ L、β甘油磷酸钠 10 mm ol/ L和抗坏血酸 AA 5 0μg/ml)对培养状态下的不同代大鼠骨髓基质细胞进行成骨诱导 ,提取 RNA,采用 RT- PCR方法 ,以β-肌动蛋白 c DNA为内参照 ,检测骨钙素和 型胶原 m RNA的表达。结果　与对照组相比 ,接受成骨诱导剂作用的大鼠骨髓基质细胞随诱导时间的延长骨钙素和 型胶原 m RNA出现高表达 ,且维生素 D为诱导骨钙素 m RNA表达的必需成分。结论　体外培养的大鼠骨髓基质细胞保持成骨未分化状态 ,无骨钙素和 型胶原 m RNA的表达 ,诱导后可向成骨分化 ,骨钙素和 型胶原 m RNA表达升高     

HGF和1,25-(OH)2VitD3对兔骨髓基质干细胞成骨活性的联合诱导

目的观察肝细胞生长因子(HGF)和1,25-(OH)2VitD3对兔骨髓基质干细胞(bone marrow stromal cells,BMSCs)成骨活性的诱导作用。方法采用HGF和1,25-(OH)2VitD3联合诱导兔BMSCs后检测其碱性磷酸酶(alkaline phosphatase,ALP)活性、骨钙素和胶原蛋白I、II的含量并观察其成骨分化特性的变化。结果HGF和1,25-(OH)2VitD3联合诱导的兔BMSCs的ALP活性、骨钙素水平和胶原蛋白I、II在细胞中表达水平均明显高于对照组细胞。结论HGF和1,25-(OH)2VitD3联合诱导作用可以促使兔BMSCs明显表现出成骨分化特性。     

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.     

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.     

Electro-Acupuncture Combined with the Trigger Point Needle-Embedding for Treatment of Primary Trigeminal Neuralgia in 31 Cases

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.     

Investigation of Matrix Metalloproteinase -1, 2 and tissue inhibitor of matrix metalloproteinases-1 in Endometriosis

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.     

Shi Da-zhuo (史大卓) —An outstanding cardiologist of integrative medicine

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.     

Persist in and Carry Forward the Integrative Medical Research——Speech at the 6th National General Congress of Chinese Association of Integrative Medicine by Academician CHEN Zhu,Minister of Ministry of Health

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.