环维黄杨星D对实验性脑缺血的保护作用

目的：探讨环维黄杨星D(Cycloirobuxiure D，CVB-D)对大鼠局灶性脑缺血再灌注损伤及PC12细胞缺氧性损伤的保护作用。方法：采用线栓法制成局灶性脑缺血再灌注大鼠模型和连二亚硫酸钠(Na2S2O4)引起的PC12细胞缺氧损伤模型，探讨CVB-D对模型大鼠神经行为、脑梗塞范围、脑含水量、脑指数的影响，以及其对PC12细胞缺氧样损伤的保护作用。结果：CVB-D能降低模型大鼠神经行为学评分、脑梗塞率、脑指数、脑含水量，抑制Na2S2O4造成的PC12细胞缺氧样损伤，降低LDH的漏出，增加细胞存活率。结论：CVB-D对实验性脑缺血有保护作用。     

短音诱发听性脑干反应的特性观察

目的 了解短音（tone pip）诱发的听性脑干反应（TP－ABR）的特征及其各频率反应阈与纯音听阈的关系。方法 对正常听力青年人30耳分别采用短声（click）、短音（0.5、1、2、4、6、8kHz）测试，记录各自不同强度下ABR的波形，观察V波潜伏期的改变。结果 tone pip与常规click声诱发的ABR极为相似，均有很高的可重复性和可靠性；ABR反应阈均较其主观听阈高，尤其是频率越低，反应阈越高，低频个体差异较大；随频率（0.5-8kHz）和强度（40－120dB peSPL）增加Ⅰ波Ⅴ潜伏期递减；各频率的反应阈与音听阈均有较好的相关性。结论 短音刺激记录的TP－ABR具有频率特性，其反应阈在相应频率的客观听力评估中有应用价值。     

妊娠高血压综合征患者血清sICAM-1含量测定及其在妊高征发病中的作用

目的　探讨可溶性细胞间粘附分子 1(soluble intercellular adhesion molecule- 1,s ICAM- 1)在妊娠高血压综合征 (简称妊高征 )发病中的作用。　方法　应用酶联免疫吸附法 (EL ISA)测定 6 5例妊高征患者 (妊高征组 ,包括轻度 15例 ,中度 2 4例 ,重度 2 6例 )及 2 5例同期正常妊娠孕妇(对照组 )外周血清中 s ICAM- 1的含量 ;应用化学发光酶联免疫分析法测定两组孕妇血清中白细胞介素 1(interleukin- 1,L I- 1β)及肿瘤坏死因子 (tum or necrosing factor alpha,TNF- α)含量 ;并记录新生儿体重及妊娠结局。　结果　轻、中、重度妊高征组母血清中 s ICAM- 1的含量 [(36 8.5 6± 6 2 .81) μg/L、(6 0 6 .6 3± 10 5 .0 4 ) μg/ L、(85 9.36± 2 0 0 .92 ) μg/ L]均显著高于对照组 [(2 36 .6 9± 96 .33) μg/ L](P<0 .0 5 ,P<0 .0 1,P<0 .0 1) ,中、重度妊高征组母血清中 IL- 1β及 TNF- α的含量均显著高于对照组(P<0 .0 5 ,P<0 .0 1) ;中、重度妊高征组 s ICAM- 1的水平与相应 IL- 1β及 TNF- α的水平呈显著的正相关 (r=0 .6 97,P<0 .0 1;r=0 .74 6 ,P<0 .0 1)。重度妊高征组伴胎儿生长受限 (fetal growth restric-tion,FGR)者血中 s ICAM- 1含量显著高于同组其他孕妇之含量 (P<0 .0 5 )。妊高征组     

控制性超排卵长、短方案在IVF-ET中的疗效比较

目的:比较促性腺激素释放激素激动剂(GnRHa)长、短方案控制性超排卵在体外受精-胚胎移植(IVF-ET)中的疗效。方法:将2001年7月-2002年4月因双侧输卵管梗阻IVF-ET的患者100人随机分为长方案组(50人)和短方案组(50人)进行超排卵。长方案组从使用促性腺激素(Gn)治疗前1月经周期黄体期(月经21天)使用GnRHa 0.3mg/d,至垂体完全降调节后加用Gn;短方案组从月经周期第2天开始用GnRHa0.1mg/d,同时加用Gn。当患者有3个以上卵泡直径>18mm时肌肉注射人绒毛膜促性腺激素(HCG),36小时后取卵行IVF,取卵48小时后行ET。结果:两组患者平均获卵数、受精率、卵裂率、优质胚胎率、移植胚胎数、临床妊娠率、胚胎种植率及流产率差异无显著性。而两者的Gn使用量有差别,短方案组少于长方案组,两组差异有显著性。两组用Gn第7天雌激素水平不同,短方案组明显高于长方案组,两者差异有显著性。结论:GnRHa长、短方案在IVF-ET中控制性超排卵效果相同,但所需Gn数量不同。     

胃癌患者血清肝细胞生长因子的检测及意义

Objective To explore the clinical significance of serum HGF level changes in gastric cancer pa-tients. Methods 60 cases of patients who operatied and clinicopathological confirmed gastric cancer, were detected serum HGF level by enzyme linked immunosorbent assay(ELISA) .40 cases were administered radical gastrectomy,20 cases of patients who had distant metastasis and loss operative chance were detected 7 days and 3 months preopera-tive,postoperative serum HGF level respectively. At the same time 40 cases of chronic gastritis patients and 40 cases of healthy examination people were selected as control group. Results Serum HGF level in patients with gastric canc-er was significantly higher than that of chronic gastritis and normal controls(P <0. 01). The serum HGF level of pa-tients with tumor vascular invasion significantly increased(P <0. 05). The patients with lymph node metastasis,serum HGF level was significantly higher than that patients with no lymph node metastasis(P <0. 05). The serum HGF level of patients with liver metastasis was significantly higher than that patients with no liver metastasis(P <0. 05). The se-rum HGF level of gastric cancer patients whose maximum diameter of the tumor ≥3cm were significantly higher than that maximum diameter of the tumor <3cm(P<0. 05). According to TNM staging of gastric cancer,the serum HGF level of Ⅰ phase and Ⅱ phase patients were significantly lower than that Ⅲ phase and Ⅳ phase patients(P <0.05).The serum HGF level of gastric cancer patients had no significant correlation with sex ,age and histological type(P <0.05). The serum HGF level of 40 cases of patients who were 1 week after surgery were significantly decreased,the patients who were 3 months after surgery were more obvious(P <0. 05 and P <0. 001). Conclusion HGF may play an important role in gastric cancer occurrence and development. The detection of serum HGF level can become an im-portant index for monitoring the degree of gastric cancer and prognosis of patients.     

MIC-1 serum level and genotype: associations with progress and prognosis of colorectal carcinoma.

PURPOSE: Macrophage inhibitory cytokine-1 (MIC-1) is a divergent member of the tumor growth factor beta (TGF-beta) superfamily. Several observations suggest that it plays a role in colorectal carcinoma (CRC). In particular, MIC-1 is markedly up-regulated in colorectal cancers as well as in premalignant adenomas. This study examines the relationship of serum MIC-1 levels and genotypes to clinical and pathologic features of colonic neoplasia. Experimental Design: We confirmed the presence of MIC-1 in CRC tissue and the cell line CaCo-2. The normal range for serum MIC-1 levels was defined in 260 healthy blood donors, and the differences between normal subjects and 193 patients having adenomatous polyps or CRC were then determined. In a separate cohort of 224 patients, we evaluated the relationship of MIC-1 serum level and genotype to standard tumor parameters and outcome measures. RESULTS: MIC-1 was expressed in CRC tissue and the cancer cell line CaCo-2. There was a progressive increase in serum MIC-1 levels between normal individuals [mean (M) = 495 pg/ml, SD = 210), those with adenomatous polyps (M = 681 pg/ml, SD = 410), and those with CRC (M = 783 pg/ml, SD = 491)]. Serum MIC-1 level was correlated with the extent of disease so that the levels were higher in patients with higher Tumor-Node-Metastasis stage. There were significant differences in time to relapse and overall survival between subjects with different MIC-1 levels and genotypes. CONCLUSIONS: This study identifies a strong association between MIC-1 serum levels and neoplastic progression within the large bowel. We suggest that the measurement of serum MIC-1 levels and determination of MIC-1 genotype may have clinical use in the management of patients with CRC.     

石蜡包埋组织DNA检测在判断畸形儿病因中的应用

目的：对１９８５～１９９５年在我院尸体检查证实为畸形死亡的３９例围产儿石蜡包埋组织标本，进行有关病原体的检测，以明确围产儿致畸原因。方法：用改良的水浴脱蜡、直接裂解及酶解法，进行石蜡包埋的死亡围产儿肝、脑组织的弓形体、巨细胞病毒及Ⅱ型单纯疱疹病毒的聚合酶链反应（ＰＣＲ）检测。同时对送检胎盘者，取胎盘石蜡包埋组织，分别作上述病原体的检测。结果：３９例中２５例检出病原体，检出率为６４％。其中泌尿生殖系统畸形１３例中９例检出病原体，神经管缺陷１２例中８例检出病原体。此两种畸形中病原体的检出率高达６８％。结论：本组资料证实宫内感染是围产儿致畸的重要原因之一，并对胎盘感染常见的形态学变化及畸形儿胎盘常规送检的重要性进行了讨论。     

输卵管妊娠保留输卵管手术后综合疗法的宫内妊娠探讨

对输卵管妊娠52例有生育要求者，其中28例行切开输卵管壶腹部取胚胎术，10例行输卵管峡部破裂口修补术，7例行输卵管伞部成形术，5例行输卵管峡部端端吻合术，2例行输卵管子宫角部植入术。术后给MTX与中药等综合治疗2～5个月，对其中45例行输卵管通畅检查，双侧输卵管通畅4O例，通畅率为88.9％；有41例宫内妊娠，妊娠率为78.9％，另有1例再次异位妊娠。提示：对有生育要求的输卵管妊娠尽量根据输卵管的不同情况采用相应的手术方法，并应用有效的术后综合措施，对保留患者的生育功能和提高妊娠率有重要意义。