中药灯盏细辛化学成分的研究(Ⅱ)

目的：进一步研究灯盏细辛「Ｅｒｉｇｅｒｏｎ ｂｒｅｖｉｓｃａｐｕｓ（Ｖａｎｔ．）Ｈａｎｄ．－Ｍａｚｚ．」的化学成分。方法：采用硅胶柱层析对灯盏细辛的氯仿萃取部分的化学成分进行分离和纯化,应用理化常数和光谱分析（ＩＲ,ＭＳ,＾１ＨＮＭＲ,＾１３ＣＮＭＲ）鉴定其结构。结果：得到６个单体化合物,结构分别为３,４－二羟基肉桂酸（３,４－ｄｉｈｙｄｒｏｘｙ－ｐｈｅｎｙｌ ａｃｒｙｌｉｃ ａｃｉｄ,Ⅶ）,α－甲氧基－γ－吡喃酮（α－ｍｅｔｈｏｘｙ－γ－ｐｙｒａｎｏｎｅ,Ⅷ）、豆甾醇（ｓｔｉｇｍａｓｔｅｒｏｌ,Ⅺ）、胡萝卜甙（β－ｓｉｓｔｏｓｔｅｒｏｌ－３－Ｏ－β－Ｄ－ｇｌｕｃｏｐｙｒａｎｏｓｉｄｅ,Ⅻ）。结论：化合物Ⅶ,Ⅷ,Ⅺ,Ⅻ为首次从本植物中分得。     

PCR辅助转录滴定系统定量检测AFP mRNA方法的建立

目的：建立ＰＣＲ辅助转录滴定系统（ＰＡＴＴＹ）定量检测ＡＦＰ ｍＲＮＡ的方法。方法：采用ＲＴ－ＰＣＲ定点替代突变及体外转录技术合成单碱基突变ＡＦＰ ｍＲＮＡ内竞争模板,以竞争性ＲＴ－ＰＣＲ定量检测各肝癌细胞株ＡＦＰ ｍＲＮＡ,结果：成功制备引入ＨｉｎｄⅢ酶切位上为的单碱基突变ＡＦＰ ｍＲＮＡ内竞争模板,建立ＰＡＴＴＹ定量检测ＡＦＰ ｍＲＮＡ的方法;检测１μｇＨｅｐＧ２和Ｈｕｈ７两株肝癌细胞总ＲＮＡ     

Changes in systemic and splanchnic hemodynamics after orthotopic liver transplantation in cirrhotic rats

Ｐｒｅｖｉｏｕｓｓｔｕｄｉｅｓｈａｖｅｓｈｏｗｎｔｈａｔｓｙｓｔｅｍｉｃａｎｄｓｐｌａｎｃｈｎｉｃｈｅｍｏｄｙｎａｍｉｃａｂｎｏｒｍａｌｉｔｉｅｓｐｅｒｓｉｓｔｉｎｃｉｒｒｈｏｔｉｃｐａｔｉｅｎｔｓｗｉｔｈｐｏｒｔａｌｈｙｐｅｒｔｅｎｓｉｏｎａｆｔｅｒｏｒｔｈｏｔｏｐｉｃｌｉｖｅｒｔｒａｎｓｐｌａｎｔａｔｉｏｎ(ＯＬＴ),ｄｅｓｐｉｔｅｔｈｅｒｅｔｕｒｎｏｆｐｏｒｔａｌｐｒｅｓｓｕｒｅｔｏｎｏｒｍａｌＴｈｅｅｌｕｃｉｄａｔｉｏｎｏｆｔｈｅｍｅｃｈａｎｉｓｍｒｅｍａｉｎｓｃｏｎｔｒｏｖｅｒｓｉａｌ15…     

Expressions of α_1 adrenoceptor subtypes mRNA in hepatic tissues of cirrhotic patients with portal hypertension

Ｏｂｊｅｃｔｉｖｅ　ＴｏｉｎｖｅｓｔｉｇａｔｅｔｈｅｅｘｐｒｅｓｓｉｏｎｏｆｍＲＮＡｏｆα1 ａｄｒｅｎｏｃｅｐｔｏｒｉｎｈｅｐａｔｉｃｔｉｓｓｕｅｓｏｆｃｉｒｒｈｏｔｉｃｐａｔｉｅｎｔｓｗｉｔｈｐｏｒｔａｌｈｙｐｅｒｔｅｎｓｉｏｎ Ｍｅｔｈｏｄｓ　Ｓｅｍｉ ｑｕａｎｔｉｔａｔｉｖｅｒｅｖｅｒｓｅｔｒａｎｓｃｒｉｐｔｉｏｎａｎｄｐｏｌｙｍｅｒａｓｅｃｈａｉｎｒｅａｃｔｉｏｎ (ＲＴ ＰＣＲ)ｗｅｒｅｕｓｅｄｉｎ 12ｈｅｐａｔｉｃｖｉｒｕｓＢ ｒｅｌａｔｅｄｃｉｒｒｈｏｔｉｃｐａｔｉｅｎｔｓｗｉｔｈｐｏｒｔ…     

富集CD34~ 细胞作干细胞移植的临床初步探索

目的　观察富集CD34 的造血干 /祖细胞做肿瘤患者同种异基因造血干细胞移植 (Allo HSCT)和自体移植的临床疗效。观察输注纯化CD34 细胞患者的预后情况。方法　采用磁分选临床型细胞富集仪将表面包被有CD34单抗的磁性微球体系与细胞共同培养 ,特异性结合CD34 细胞。在磁场作用下分别收集CD34 和CD34-组分。完成 2 0例患者CD34 细胞体外纯化富集。其中HLA半相合移植 5例 ,自体移植 15例。结果　纯化后CD34 细胞纯度达 97%以上 ,移植CD34 细胞中位数 5 .72 (0 .15～ 12 .0 )× 10 6,CD34 细胞中位数 3.73(2 .6～ 6 .8)× 10 4 ;CD34-细胞 (CD3、CD4、CD8、CD19)对数去除率 (Log,下同 )为 1.99～ 5 .0。 19例患者移植后随访 11个月 (中位数 ,1～ 2 0 ) ,总体生存13/ 19(例 )。本院 11例中 ,总体生存为 8/ 11(例 ) ,其中HLA半相合 1/ 3(例 ) ,自体移植 7/ 8(例 )。移植后造血重建迅速 ,随访 18个月以上无病生存者 3例中 1例为同种异基因HLA半相合亲属移植 ,2例为肿瘤自体移植。 1例父子间HLA半相合移植 ,白细胞恢复 >1× 10 9/L ,血小板 >2 0× 10 9/L(均为移植后第 13天 )。仅有短暂的I度移植物抗宿主疾病。 2例自体移植病例白细胞恢复 >1× 10 9/L(8～ 2 6d) ,血小板恢复 >2 0× 10 9/L(2 2～ 35d)。结论     

多巴胺转运载体基因多态性及帕金森病遗传易感性的关系

目的 探讨多巴胺转运载体（ＤＡＴ）基因３’ＶＮＴＲ多态性与帕金森病（ＰＤ）遗传易感性的关系。方法 选择确诊的ＰＤ患者１７１例和正常人１８０名,利用ＰＣＲ扩散增片段长度多态性（Ａｍｐ－ＦＬＰ）技术检测ＤＡＴ基因３’ＶＮＴＲ多态性,并分析比较ＰＤ组与对照组之间多态性频率的差异。结果 发现ＰＤ组和对照组之间ＤＡＴ基因３’ＶＮＴＲ多态位点基因型分布和等位基因频率差异均有显著意义（Ｐ〈０．０５）。ＤＡＴ基因     

Noninvasive three-dimensional computed tomographic angiography in preoperative detection of intracranial arteriovenous malformations

Ｃｏｎｖｅｎｔｉｏｎａｌｉｎｔｒａ ａｒｔｅｒｉａｌｄｉｇｉｔａｌｓｕｂｔｒａｃｔｉｏｎａｎｇｉｏｇｒａｐｈｙ (ＤＳＡ)ｕｓｅｄｔｏｂｅｒｅｇａｒｄｅｄａｓｔｈｅｇｏｌｄｓｔａｎｄａｒｄｆｏｒｄｉａｇｎｏｓｉｓｏｆｉｎｔｒａｃｒａｎｉａｌａｒｔｅｒｉｏｖｅｎｏｕｓｍａｌｆｏｒｍａｔｉｏｎｓ(ＡＶＭｓ) Ｒｅｃｅｎｔｌｙ ,ｎｅｗｔｅｃｈｎｉｑｕｅｓｏｆｎｅｕｒｏｉｍａｇｉｎｇａｎｄｃｏｍｐｕｔｅｒａｓｓｉｓｔｅｄｔｈｒｅｅ ｄｉｍｅｎｓｉｏｎａｌｒｅｃｏｎｓｔｒｕｃｔｉｏｎｍａｋｅｉｔｐｏｓｓｉｂｌｅ…     

Expression of the human multidrug resistance gene mdr1 in leukemic cells and its application in studying P-glycoprotein antagonists

Objective To explore the role of endothelin (ET) in the pathogenesis of exercise-induced asthma (EIA), we investigated the effects of ET(B) receptor antagonists, ET-1 (11-21)fragment and N-cis-2,6-dimethylpi-peridinocardonyl-L-γ-methylleucyl-D-1-methoxycarbonyl tryptophanyl-D-norleucine (BQ788) on broncho-constriction elicited by isocapnic hyperpnea in guinea pigs. Methods Eighteen pathogen-free Hartley guinea pigs were randomly divided into three groups. A: normal saline (NS) inhalation control group (n=6), B: BQ788 group (n=6), and C: ET-1(11-21) fragment group (n=6). Guinea pigs were anesthetized with pentobarbital sodium. After measuring the basal value of lung resistance (R[L]) and dynamic compliance of the respiratory system (Cdyn), NS (0.96 ml), BQ788 (9 nmol) and ET-1(11-21)fragment (9 nmol) were inhaled. A rodent respirator with a dry 5%CO(2)-95%O(2) mixture at room temperature provided mechanical ventilation (V[T] 8 ml/animal, 100 breaths/min) for 5 min. R[L] and Cdyn of the 3 groups were measured again after isocapnic hyperpnea challenge. Results In the control group, isocapnic hyperpnea of dry gas elicited a marked increase in R[L] and decrease in Cdyn. R[L] and Cdyn of the guinea pigs from BQ788 group and ET-1(11-21)fragment group did not change significantly. Conclusion It was demonstrated that selective ET(B) receptor antagonists, ET-1(11-21) fragment and BQ788, inhibited the bronchoconstriction induced by isocapnic hyperpnea in guinea pigs. The data showed that ETs are potent constrictors of guinea pig airway smooth muscle via a direct effect on ET receptors. It was suggested that ET receptor antagonists, especially ET(B) receptor antagonist, might be beneficial in preventing EIA.     

人绒毛膜滋养层细胞的培养

取妊娠 ６～１０周的人妊娠早期绒毛膜,用胰酶／ＤＮＡ酶消化,换瓶纯化处理,经光镜和电镜检测证实,我们建立了稳定的人绒毛膜滋养层细胞培养体系。     

局部野放射治疗骨转移瘤的经验分析

目的 通过对比分析局部野放射治疗骨转移瘤的3种分割方法,以寻求产生最好效果的方法。材料和方法 104例骨转移患者,其中30例单次放疗8 Gy,31例4 Gy×5次,43例2 Gy×20次。结果与结论 2 Gy×20次的放疗方法产生较高的疼痛缓解率,较低的疼痛复发率,说明较高剂量的、分割照射疗效较佳。