九头狮子草的抗菌作用研究

采用平板打孔法,分别用九头狮子草全草的乙提取和水浓缩得到的药液药,在营养琼脂培养和基和ＬＢ培养基上筛出敏感细菌。结果表明九头狮子草对金黄色葡萄球菌、溶血性链球菌、、肺炎克雷伯菌有较强的抑制作用。     

5-Fu、MTX、VP16-213联合方案治疗恶性妊娠滋养细胞肿瘤的研究

目的 探讨5-Fu、MTX、VP16—213联合化学治疗恶性妊娠滋养细胞肿瘤患者的疗效。方法 对1992年4月至2003年4月11年本院91例恶性妊娠滋养细胞肿瘤(包括侵蚀性葡萄胎和绒癌)患者采用5-Fu、MTX、VP16—213三联化疗方案治疗，其中绒癌36例，有2例为复发性绒癌；侵蚀性葡萄胎(侵葡)55例。Ⅰ期16例，Ⅱ期26例，Ⅲ期56例。结果 91例患者中，采用此三联化疗方案治疗有86例获治愈，总治愈率高达94．51％。此三联化疗方案的主要毒副反应是骨髓抑制和胃肠道反应，其中Ⅲ～Ⅳ度粒细胞减少占27．3％，Ⅲ～Ⅳ度血小板减少占7．4％，Ⅲ度恶心呕吐占19．80%，Ⅲ度腹泻占2．4％，Ⅰ度肝功损害占2．1％，在19．69％的疗程中发生口腔溃疡，其中Ⅲ度占8．36％。结论 5-Fu、MTX、VP16—213联合方案治疗恶性妊娠滋养细胞肿瘤可达满意的临床效果，对其他药物耐药或复发病例也可获得满意的疗效。     

Design and test of a vascular access device

Transarterial left ventricular assist devices (LVADs), such as the Hemopump, IABP, and PUCA-pump, are meant to be introduced into the body via the femoral or axillary artery without major surgery. For certain applications, introduction is performed directly into the aorta via an open thorax procedure. A prototype of a vascular access device has been realized that allows direct access into the aorta as an alternative for the common surgical graft anastomosis suturing technique. The device consists of a metal tube acting as a circular knife to cut a hole in the aortic wall, a screw to store the removed part of the aortic wall, and a plastic tube that is introduced through the hole and tightly connected to the aortic wall. The device could be placed without aortic clamping. The device has been tested on a slaughterhouse porcine aorta. A low-pressurized aorta appeared to be the worst case; thus, two animal experiments in the low-pressurized pulmonary artery were performed. No leakage occurred for pressures between 40 and 300 mm Hg.     

Prognostic factors for patients with advanced stage serous borderline tumours of the ovary.

BACKGROUND: The aim of this study was to determine the prognostic factors for patients with advanced stage, low malignant potential ovarian tumour (LMPOT). PATIENTS AND METHODS: A retrospective review of 80 patients with serous LMPOT and peritoneal implants treated at or referred to our institution was carried out. RESULTS: Sixty-five patients had non-invasive implants. Fifteen patients had invasive implants. Twenty-nine patients had stage II and 51 patients had stage III disease. Three patients died of evolutive invasive disease and four of complications of treatment. The only prognostic factor of progression to 'evolutive invasive disease' is the pathologic subtype of peritoneal implants. The 5-year rates of evolutive invasive disease in patients with non-invasive implants and invasive implants were 2% and 31%, respectively (P <0.002). CONCLUSIONS: In this series, the only prognostic factor for patients with advanced stage borderline tumour is the type of peritoneal implant. More patients died of the treatment's complications than of the disease itself. The patients' prognosis with non-invasive implants seems to be excellent, and conservative management could be discussed in younger patients.     

Serum levels of C3 and Factors I and B in minimal change disease

Abstract Background: Relapses are an important problem in minimal change disease, which accounts for most of the cases of childhood nephrotic syndrome. Because of defects in the humoral immune system, patients are predisposed to infection in nephrotic syndrome and infection is the most important complication that determines mortality and morbidity.
Methods: In this study, serum levels of Factors I and B and C3 were studied to evaluate the relationships between nephrotic syndrome and infection in 17 children with nephrotic syndrome (24–96 months of age) and 10 healthy children (27–84 months of age).
Results: Serum levels of Factors I and B were found to be lowered in the active disease group compared with the control group. These values were lowest for the infection group. Although it was observed that these values increased with steroid treatment, they did not reach normal levels. The parameters in remission were not different from the parameters in the control subjects. The serum level of C3 was found to be high during the active disease state and returned to normal levels during remission.
Conclusions: The patients with active minimal change disease had infections such as peritonitis, septicemia and urinary tract infection because of low concentrations of Factors I and B in their sera.     

细胞粘附分子CD44s、CD44v5在垂体腺瘤中的表达及其意义

目的研究垂体腺瘤(pituitary adenoma)中细胞粘附分子(CD44)的表达,探讨CD44蛋白在垂体腺瘤侵袭性生长中的意义.方法用免疫组化(SP)的方法检测38例垂体腺瘤中CD44s、CD44v5蛋白的表达.结果20例侵袭性垂体腺瘤中CD44s、CD44v5阳性率分别为75%、35%.18例非侵袭性垂体腺瘤中CD44s、CD44v5阳性率分别为27.8%、22.2%.CD44s在侵袭性垂体腺瘤中表达的阳性率明显高于非侵袭性垂体腺瘤,其差异具有显著性(P＜0.01),CD44v5在侵袭性垂体腺瘤中和非侵袭性垂体腺瘤中的表达率均较低,无显著性差异(P＞0.05).结论CD44s在侵袭性垂体腺瘤中呈高表达,与垂体腺瘤的侵袭性生长有关,在垂体腺瘤的侵袭性生长过程中起重要作用.CD44v5在垂体腺瘤中的表达较低,与垂体腺瘤生长方式无关.     

Effects of conventional physiotherapy, continuous positive airway pressure and non-invasive ventilatory support with bilevel positive airway pressure after coronary artery bypass grafting

BACKGROUND: Coronary artery bypass graft (CABG) surgery with the use of mammary arteries is associated with severe alteration of lung function parameters. The purpose of the present study was to compare the effect on lung function tests of conventional physiotherapy using incentive spirometry (IS) with non-invasive ventilation on continuous positive airway pressure (CPAP) and with non-invasive ventilation on bilevel positive airway pressure (BiPAP or NIV-2P), METHODS: Ninety-six patients were randomly assigned to 1 of 3 groups: NIV-2P (1 h/3 h), CPAP (1 h/3 h) and IS (20/2 h). Pulmonary function tests and arterial blood gases analyses were obtained before surgery. On the 1st and 2nd postoperative days, these parameters were collected together with cardiac output and calculation of venous admixture. RESULTS: For the 3 groups a severe restrictive pulmonary defect was observed during the 1st postoperative day. On the 2nd postoperative day, in opposition to IS, intensive use of CPAP and NIV-2P reduced significantly the venous admixture (P<0.001) and improved VC, FEV1 and PaO2 (P<0.01). CONCLUSION: We conclude that preventive use of NIV can be considered as an effective means to decrease the negative effect of coronary surgery on pulmonary function.     

CT-Based Needle Marking of Superficial Intracranial Lesions for Minimal Invasive Neurosurgery

A CT-based method of marking superficial intracranial lesions with a needle is presented. This form of neuronavigation can be applied in every neurosurgical centre. Owing to its rapid application it is also suitable for cases of emergency. The neurosurgical approach can be centred precisely over the lesion providing for a minimally invasive operation. The method has proved its efficacy in numerous cases of haematomas and cystic lesions.