卵巢癌个体性化疗的体外药敏研究

目的以人卵巢癌细胞系HO-8910为对象,以人黑色素瘤细胞株A-375为阳性对照,以细胞抑制率、细胞凋亡为指标,评价8种化疗药物在体外诱导卵巢癌细胞凋亡效应,为临床卵巢癌患者个体性化疗提供实验依据。方法MTT法检测细胞抑制率,FCM法检测诱导细胞凋亡的效果。结果与结论①卵巢癌细胞的化疗敏感性与化疗药诱导的卵巢癌细胞凋亡密切相关;②细胞抑制率,早期细胞凋亡,晚期细胞凋亡,细胞凋亡率可作为制订卵巢癌个体性治疗方案的评价指数体系;③在细胞抑制率的基础上优选出相应的抗癌药物,再通过细胞凋亡率评价抗癌药物的优化组合方案,这一肿瘤个体性化疗方案制定程序具有可行性,为卵巢癌者个体性化疗方案的制定提供了一个有用的研究模式。     

染料木黄酮诱导人卵巢癌HO-8910细胞凋亡的实验研究

目的研究染料木黄酮对人HO-8910卵巢癌细胞的抑制效应和诱导凋亡作用,探讨其机制。方法将不同浓度的染料木黄酮作用于人HO-8910卵巢癌细胞,利用MTT法检测其有效作用浓度,分别采用瑞氏染色、TUNEL、流式细胞仪观察和检测HO-8910细胞凋亡情况。结果MTT法测得其IC50值为28.63 mg/L,浓度为8~128 mg/L的染料木黄酮具有诱导人HO-8910卵巢癌细胞凋亡的作用,且随药物作用时间延长凋亡率逐渐增加。结论染料木黄酮具有抗卵巢癌作用,其重要作用机制之一是诱导人HO-8910卵巢癌细胞凋亡。     

ghrelin对人卵巢癌细胞株HO-8910增殖和凋亡的影响

目的探讨ghrelin对人卵巢癌细胞株HO-8910增殖及凋亡作用的影响。方法将不同质量浓度的ghrelin(400、500、600、700、800ng·mL-1)与人卵巢癌细胞株HO-8910共同培养,采用MTT法检测细胞增殖的抑制率,Tunel法检测细胞凋亡,蛋白免疫印迹法(Western blotting)检测磷酸化的ERK1/2(p-ERK1/2)的表达。结果ghrelin≥600ng·mL-1时对HO-8910细胞增殖的抑制率具有显著作用(P<0.05)。600ng·mL-1质量浓度的ghrelin作用于HO-8910细胞20min后,细胞凋亡、p-ERK1/2的灰度值均显著减少(均P<0.05)。结论 ghrelin能抑制人卵巢癌细胞株HO-8910增殖、促进其凋亡;ERK1/2可能参与了ghrelin对人卵巢癌细胞株HO-8910作用的过程。 更多还原     

姜黄素对人卵巢癌细胞株HO-8910增殖和凋亡的影响

目的:探讨姜黄素对体外培养人卵巢癌HO-8910细胞增殖和凋亡的影响。方法:选用人卵巢癌细胞株HO-8910进行体外培养至对数生长期,以0~80μmol/L姜黄素(5μmol/L,10μmol/L,20μmol/L、40μmol/L、80μmol/L)分别处理HO-8910细胞24、48、72h,四甲基偶氮唑蓝(MTT)实验测定细胞的生长抑制率;流式细胞仪检测不同浓度药物对细胞凋亡率的影响;免疫组化法检测PCNA在细胞中的表达,评价细胞的增殖状态。结果:姜黄素对HO-8910细胞增殖抑制率随药物浓度增加及作用时间延长有升高趋势,呈时间剂量依赖性。姜黄素作用24h随浓度的升高PCNA阳性表达逐渐降低。流式细胞仪分析证实随着浓度的升高细胞凋亡率和膜受损率均提高。结论:姜黄素对人卵巢癌细胞株HO-8910的生长有显著的抑制作用,并能诱导其凋亡。     

转FasL基因卵巢癌HO-8910细胞系的建立

目的建立表达转FasL基因卵巢癌细胞系,为以FasL为靶点治疗卵巢癌提供理想细胞模型。方法应用分子克隆技术,将人FasL cDNA片段正向插入逆转录病毒载体pLXSN构建重组质粒pL(hFasL)SN,转染包装细胞PA317收获假病毒上清,磷酸钙法转染卵巢癌HO-8910细胞筛选建系,酶切PCR鉴定、流式细胞仪(FCM)法检测。结果酶切鉴定证实重组质粒pL(hFasL)SN中存在FasL,PCR方法从转染细胞HO-8910-FasL基因组中扩增出0．86kb片段,FCM检测显示FasL表达增加40．32％,HL-60细胞与HO-8910-FasL细胞共培养HL-60细胞凋亡增加25．65％。结论应用逆转录病毒法建立了稳定高表达FasL并具功能的HO-8910-FasL细胞系。     

活性氧介导紫花牡荆素诱导卵巢癌HO-8910细胞调亡

目的:探讨紫花牡荆素(Casticin,CAS)诱导人卵巢癌HO-8910细胞凋亡是否涉及活性氧生成和线粒体膜去极化。方法:体外培养HO-8910细胞。AnnexinⅤ/PI双染色流式细胞术(FCM)分析细胞凋亡率;H2DCFH-DA探针FCM检测细胞活性氧生成;Rh123探针FCM分析细胞线粒体跨膜电位。结果:CAS诱导HO-8910细胞凋亡率增高,呈剂量依赖性。CAS以浓度依赖方式增高HO-8910细胞内活性氧水平。CAS处理细胞的Rh123平均荧光强度显著降低,表明CAS具有诱导细胞线粒体膜去极化作用。N-乙酰半胱氨酸(N-acetyl-L-cysteine,NAC)部分拮抗CAS诱导细胞凋亡,并能减弱CAS诱导活性氧生成和线粒体膜去极化作用。结论:CAS诱导卵巢癌HO-8910细胞凋亡作用机制可能与促进细胞活性氧生成介导的线粒体膜去极化相关。     

苦参碱对人卵巢癌细胞株HO-8910PM增殖及侵袭运动能力的影响

目的 研究苦参碱对人高转移卵巢癌细胞系HO-8910PM增殖及转移相关能力的影响及其作用机制.方法 以MTT法和台盼蓝拒染法检测苦参碱对人高转移卵巢癌HO-8910PM细胞增殖的影响;Transwell小室法检测其对HO-8910PM细胞侵袭运动能力的影响;考马斯亮蓝染色法检测不同质量浓度苦参碱对H0-8910PM细胞细胞骨架的改变及免疫细胞化学方法检测药物作用前后HO-8910PM细胞Ezrin蛋白的表达.结果 苦参碱对HO-8910PM细胞增殖抑制呈明显剂量和时间效应;1.5 g/L苦参碱能明显抑制细胞的增殖,作用6 h后能抑制HO-8910PM细胞体外侵袭人工基底膜和运动能力,抑制率分别为(41.52±10.76)%和(39.73±10.67)%;1.0、1.5g/L苦参碱作用HO-8910PM细胞24 h后使细胞骨架明显改变,并上调Ezrin蛋白的表达.结论 苦参碱能抑制高转移性人卵巢癌细胞HO-8910PM的增殖能力和侵袭运动能力,其抗肿瘤侵袭运动的机制与细胞骨架和Ezrin蛋白表达的改变有关.     

8-硝基白杨素增强顺铂诱导人卵巢癌HO-8910细胞凋亡作用及其机制

目的探讨8-硝基白杨素(8-NOCHR)体外增强顺铂(DDP)诱导人卵巢癌HO-8910细胞凋亡的效应及其机制。方法采用MTT法检测8-NOCHR增强DDP对人卵巢癌HO-8910细胞增殖的影响,Western blot检测不同浓度8-NOCHR及DDP作用后HO-8910细胞P38MAPK和P-P38MAPK蛋白水平的表达情况;分光光度法分别检测8-NOCHR及DDP作用后HO-8910细胞GSH含量的变化以及Caspase-3活性的变化。结果 8-NOCHR能增强DDP对HO-8910细胞的诱导凋亡效果。各用药组P38MAPK、P-P38MAPK的表达均表现不同程度地增强(P<0.05),Caspase-3的活性表现不同程度增高(P<0.01),GSH含量不同程度降低(P<0.01)。结论 8-NOCHR能促进顺铂诱导HO-8910细胞的凋亡;8-NOCHR的化疗增敏作用与细胞内GSH的耗竭,Caspase-3活性增加,促进P38MAPK、P-P38MAPK蛋白表达有关。     

二氢杨梅素诱导人卵巢癌HO-8910细胞凋亡及机制研究

目的二氢杨梅素体外对人卵巢癌HO-8910细胞生长、凋亡的影响,及其作用机制的探讨。方法体外培养HO-8910细胞,以不同浓度(10、20、40 μmol/L)的二氢杨梅素作用于HO-8910细胞,MTT法及CCK-8法检测对细胞生长的抑制作用;AnnexinV-FITC/PI双染流式细胞仪检测对细胞凋亡的影响;Hoechst 33258荧光染色观察细胞凋亡情况;Western blotting法检测Caspase-3、Bcl-2、Bax、ERK、p-ERK蛋白表达情况。结果MTT和CCK-8结果均显示二氢杨梅素可浓度依赖性地抑制HO-8910细胞的生长;流式细胞仪结果显示二氢杨梅素可浓度依赖性促进HO-8910细胞凋亡;Hoechst 33258荧光染色结果显示,二氢杨梅素作用后的HO-8910细胞呈现典型凋亡形态学改变;Western blotting结果显示二氢杨梅素可上调HO-8910细胞Caspase-3和Bax水平,下调Bcl-2、ERK、p-ERK水平(P < 0.05)。结论二氢杨梅素具有抗人卵巢癌HO-8910细胞活性的作用,并诱导其凋亡,其作用机制与调控ERK/MAPK信号通路有关。     

蝎毒抗癌多肽对卵巢癌细胞HO-8910生长的抑制作用

目的观察蝎毒抗癌多肽对卵巢癌细胞HO-8910生长的抑制作用。方法卵巢癌细胞HO-8910分为空白对照组和蝎毒抗癌多肽处理组(终浓度分别为1、100、200、400、800 mg/L),采用细胞毒试验(MTT)法检测蝎毒抗癌多肽对卵巢癌细胞HO-8910生长抑制率,流式细胞术检测细胞周期和细胞凋亡的变化。结果1、100、200、400和800 mg/L组HO-8910细胞生长抑制率分别为2.56%、12.47%、28.53%、47.93%和66.92%,200、400和800 mg/L组与对照组比较差异具有显著性(P<0.01);在400和800 mg/L组,与空白对照组比较,400 mg/L组HO-8910细胞S期细胞数明显减少(P<0.01),G2 M期细胞明显增多(P<0.01),800 mg/L组HO-8910细胞G2 M期细胞数明显减少(P<0.01),G1期细胞数有增多趋势;与空白对照组比较,400和800mg/L组HO-8910凋亡细胞数明显增加(P<0.01)。结论在一定范围内蝎毒抗癌多肽可明显抑制卵巢癌细胞HO-8910的生长,其机制与蝎毒抗癌多肽抑制HO-8910细胞DNA合成、诱导HO-8910细胞发生G2 和G1期阻滞及诱导HO-8910细胞凋亡有关。     

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.