亚硫酸氢钠处理后牛心包的血液相容性

目的评价经亚硫酸氢钠(SOB)溶液抗钙化处理后的牛心包的血液相容性。方法对戊二醛处理后再经SOB溶液处理的牛心包,采用体外动态凝血实验、血小板黏附实验、D-二聚体测定和补体激活实验进行血液相容性评价;仅经过戊二醛处理者作为对照组。结果SOB处理后牛心包的凝血性能和血小板黏附性能与对照组相比无明显差异;D-二聚体含量两组均在正常范围内,且SOB处理组显著低于对照组(P<0.05);补体激活实验中SOB处理组补体C3a水平显著低于对照组(P<0.05)。结论经SOB抗钙化处理后的生物材料体外血液相容性符合临床应用要求。     

不同剂量辛伐他汀对ACS患者hs-CRP的影响

目的 研究不同剂量辛伐他汀对急性冠脉综合征（ACS）患者高敏C反应蛋白（hs-CRP）的影响。方法 对76例ACS患者随机分为两组，一组给予小剂量辛伐他汀20mg·d^-1，治疗10d，一组给予大剂量辛伐他汀40mg·d^-1，治疗10d，比较治疗前后hs-CRP变化的情况。结果 两组hs-CRP均显著下降，大剂量组较小剂量组下降更明显，有统计学差异p〈0．05。结论 辛伐他汀能降低ACS患者hs-CRP，大剂量（40mg·d^-1）的作用更为显著，未出现明显副作用。     

PACS系统中两种图像采集设备的工程技术评价

选用了当前一些常用主流的数字化仪和CR,对PACS系统中的两种图像采集设备胶片数字化仪和CR的各种工程参数进行工程技术方面的评价,分析了两种数字化仪一些参数的测试结果和CR各测试项目的允许误差范围.测试结果表明:图像采集设备的工程技术参数是影响PACS系统整体性能的重要因素.     

氧气吹臀治疗新生儿尿布皮炎57例临床观察

目的 探讨氧气吹臀治疗新生儿尿布皮炎的临床疗效.方法 对我院2002～2004年收治的新生儿尿布皮炎87例随机分成两组,氧气吹臀57例为治疗组,常规治疗30例为对照组.治疗组将氧流量调至8L/min～10L/min,每次5min～10min,每日2次,比较两组疗效.结果治疗组疗效快,治愈时间与对照组相比明显缩短,两组有显著性差异P＜0.05.结论 氧气吹臀治疗新生儿尿布皮炎,缩短了病程,减少了并发症,值得临床推广应用.     

单纯性肥胖儿童血清瘦素及胰岛素测定

目的:探讨儿童肥胖与激素水平变化的关系.方法:分别检测肥胖和正常儿童血清瘦素和胰岛素水平,并分析二者之间的关系.结果:单纯性肥胖儿童体内瘦素平均水平为(34.21±15.92)μg/L,胰岛素平均水平为(14.56±7.23)mIU/L;正常儿童体内瘦素平均水平为(12.40±3.77) μg/L,胰岛素平均水平为(5.75±5.07)mIU/L,2组比较差异有统计学意义(P＜0.01);肥胖儿童体内瘦素与胰岛素呈正相关(r=0.37,P＜0.01).结论:单纯性肥胖儿童体内瘦素与胰岛素的分泌明显高于正常儿童,2激素水平在肥胖儿童中呈正相关.     

O-RADS、GI-RADS、ADNEX模型诊断附件肿瘤良恶性的价值及一致性分析

目的 分析O-RADS、GI-RADS、ADNEX模型超声诊断分类系统鉴别附件肿瘤良恶性的价值及一致性。方法 回顾性分析2017年1月—2020年12月在常州市第二人民医院行手术治疗的299例患者的324个附件肿瘤,由3位经验丰富的超声医师分别根据O-RADS、GI-RADS、ADNEX模型进行分类,绘制受试者工作特征曲线,获得最佳分界值,以病理检查结果为金标准,分析3种超声分类系统诊断附件肿瘤的有效性。使用κ值评估各超声医师分类的一致性。结果 当取O-RADS >3类的cut-off值时,其诊断附件肿瘤良恶性的曲线下面积（AUC）为0.981,大于GI-RADS（0.934）和ADNEX模型（0.907）（P <0.05）;而GI-RADS与ADNEX模型的AUC比较,差异无统计学意义（P >0.05）。O-RADS诊断附件肿瘤良恶性的敏感性为96.0%,高于GI-RADS（90.0%）和ADNEX模型（88.0%）（P <0.05）;GI-RADS与ADNEX模型的敏感性比较,差异无统计学意义（P >0.05）。O-RADS、GI-RADS、ADNEX模型诊断附件肿瘤良恶性的特异性分别为92.9%、88.4%和93.3%,差异无统计学意义（P >0.05）。3位超声医师采用O-RADS、GI-RADS、ADNEX模型诊断附件肿瘤良恶性的一致性均较好,κ值为0.857～0.937。结论 O-RADS、GI-RADS、ADNEX模型均有较高的诊断价值,且一致性较好,但O-RADS的诊断效能优于GI-RADS和ADNEX模型。     

NR4A家族蛋白结构与功能的研究进展

孤儿核受体NR4A家族蛋白是一类不依赖于配体激活的主动转录因子,其本身的表达、转录、翻译后修饰（磷酸化、泛素化等过程）可被多种外界刺激激活。激活后的NR4A以单体或二聚体形式识别并结合下游靶基因的启动子调控其转录与表达,调节机体代谢、免疫反应,参与肿瘤等多种疾病的发生、发展,可能成为肿瘤治疗的潜在药物。该文从结构和功能两方面对NR4A家族蛋白的研究进展进行综述。     

Contribution of minute axillary lymph nodes to accurate staging for patients with breast cancer

Background Axillary lymph node metastasis is a very important metastatic pathway in breast cancer and its accurate detection is important for staging tumour and guiding therapy. However, neither the accuracy of routine detection of lymph node in surgical specimens nor the significance of minute lymph node with metastases in breast cancer is clear. A modified method for conveniently detecting minute lymph node in specimens of axillary dissections in patients with breast cancer was used to analyze their influence on staging breast cancer. Methods Lymph nodes in fresh, unfixed, specimens of axillary dissections from 127 cases of breast cancer were detected routinely. Then the axillary fatty tissues were cut into 1 cm thick pieces, soaked in Carnoy’s solution for 6 to 12 hours, taken out and put on a glass plate. Minute lymph nodes were detected by light of bottom lamp and examined by routine pathology. Results Lymph nodes (n= 2483, 19.6±8.0 per case) were found by routine method. A further 879 lymph nodes up to 6 mm (781 &lt; 3 mm, 6.9±5.3 per case, increasing mean to 26.5±9.7) were found from the axillary tissues after soaking in Carnoy’s solution. By detection of minute lymph nodes, the stages of lymph node metastasis in 7 cases were changed from pathological node (pN) stage pN(0) to pN(1) in 4 cases, from pN(1) to pN(2) in 2 and from pN(2) to pN(3) in 1. Conclusions The accurate staging of axillary lymph node metastasis can be obtained routinely with number of axillary lymph nodes in most cases of breast cancer. To avoid neglecting minute lymph nodes with metastases, small axillary nodes should be searched carefully in the cases of earlier breast cancer with no swollen axillary nodes. Treatment with Carnoy’s solution can expediently detect minute axillary nodes and improve the accurate staging of lymph nodes in breast cancer.     

Effect of intracoronary administration of anisodamine on slow reflow phenomenon following primary percutaneous coronary intervention in patients with acute myocardial infarction

Background Many basic and clinical studies have proved that anisodamine can produce significant effect on relieving microvascular spasm, improving and dredging the coronary microcirculation. It may be beneficial to the improvement of slow-reflow phenomenon (SRP) following percutaneous coronary intervention (PCI) for acute myocardial infarction (AMI). So we investigated the effect of intracoronary administration of anisodamine on SRP of infarct related artery (IRA) following primary PCI in patients with ST segment elevated acute myocardial infarction (STEAMI). Methods Twenty-one patients with SRP from a total of 148 STEAMI patients accepted primary PCI were enrolled into this study from September 2004 to December 2005. When SRP happened, nitroglycerin (200 &micro;g) was “bolus” injected firstly into IRA to exclude the spasm of epicardial artery and identify SRP as well as a baseline and self-control agent following PCI. Ten minutes later, 1000 &micro;g of anisodamine was injected into IRA with SRP at 200 &micro;g/s, while the coronary angiography (CAG) was taken before and at 1st, 3rd and 10th minute after administration of nitroglycerin or anisodamine, respectively. The corrected TIMI frame count (cTFC), TIMI myocardial perfusion grade (TMPG) and the diameter of IRA were calculated and analyzed by Gibson’s TIMI frame count method using quantitative computer angiography (QCA) system to evaluate the influence of anisodamine on coronary flow and vessel lumen. In the meantime the invasive hemodynamic parameters of intracoronary and systemic artery (systolic, diastolic and mean pressure) and electrocardiogram (ECG) were measured and monitored. The changes of ventricular performance parameters and the adverse reaction were evaluated and followed-up at 1 month post-PCI. Results No significant changes in cTFCs and TMPGs were found at 1st, 3rd and 10th minute after intracoronary administration of nitroglycerin as compared with the baseline control (P＞0.05). cTFCs were decreased by 58.3%, 56.2%, and 54.6%, respectively (P&lt;0.001), and TMPGs were increased from 1.13±0.21 grade to 2.03±0.32, 2.65±0.45 and 2.51±0.57 grades (P&lt;0.05) at 1st, 3rd and 10th minute after intracoronary administration of anisodamine as compared with those after intracoronary administration of nitroglycerine, respectively. The average coronary blood flow of TIMI grade was improved from 1.76±0.43 to 2.71±0.46 (P&lt;0.05) while the diameter of middle segment in re-patented coronary artery was slightly increased from (3.20±0.40) mm to (3.40±0.50) mm at the 3rd minute after intracoronary administration of anisodamine (P＞0.05) as compared with those of nitroglycerine control. The systolic, diastolic and mean pressures of intracoronary artery after intracoronary administration of anisodamine increased from 115 to 123, 75 to 84, 88 to 95 mmHg (P&lt;0.05), respectively, along with the rise of heart rate from 68 to 84 beats per minute (P&lt;0.05). There were no significant changes in intervals of PR, QT and QRS (P＞0.05) and no any severe fast arrhythmia after intracoronary administration of anisodamine. The ventricular performance parameters were significantly improved and no major adverse cardiovascular events (MACE) were found during follow-up at 1 month post-PCI. Conclusions Intracoronary administration of 1000 &micro;g anisodamine is effictive in reversing SRP following PCI in STEAMI patients, especially it is suitable for SRP patients with bradycardia or hypotension.     

Detection of pim-1 mRNA in prostate cancer diagnosis

Background Pim-1 plays an important role in the apoptosis, proliferation, differentiation of cancer cells and progression of cancer. In this study we detected the expression of pim-1 mRNA in normal prostate, benign prostatic hyperplasia (BPH), and prostate cancer (PCa) and explored its diagnostic value for PCa.Methods The prostate tissues were collected from 23 patients with PCa, 37 patients with BPH, and 3 healthy volunteers. Pim-1 mRNA expression levels in these samples were determined by the quantitative real-time PCR (QRT-PCR). The differences of expression were calculated based on a standard curve.Results The ratio of pim-1 mRNA to β-actin in the normal prostate, BPH, and PCa were 1.05±0.04, 2.57±0.74 and 4.45±0.63, respectively. The differences among PCa, BPH and NT were significant (P&lt;0.05, respectively).Conclusion Detecting pim-1 mRNA expression by QRT-PCR provides a reliable metric for the diagnosis of PCa.