阴性

There was 43 species of pathogenic bacterium and 356 stocks in all, 125 gram-positive bacteria, 221 gram-negative bacteria and 10 eumycete.

分离出病原菌43种356株，其中革兰氏阳性菌125株，占35.1%；革兰氏阴性菌221株，占62.1%；真菌10株，占2.8%。

A bacteriocin-like substance producing strain T12 was screened from 212 lactic acid bacteria isolated from intestine of healthy pigs by paper disk test and was identified as Lactobacillus. The supernatant of T12 exhibited strong inhibitory activity against the gram-positive bacteria, including Micrococcus lysodeikticus, Staphylococcus aureus, Bacillus subtilis and Bacillus cereus. A strong activity was also observed against the gram–negative bacteria and some eumycete, such as Escherichia coli, Salmonella typhimurium and Fusarium graminearum.

通过滤纸片法从健康肉猪猪大肠、小肠中分离得到212株抗生物质产生菌，以杯碟法复筛，得到1株对溶壁微球菌、金黄色葡萄球菌、枯草芽孢杆菌、蜡状芽孢杆菌等革兰氏阳性菌和大肠杆菌、鼠伤寒沙门氏菌等革兰氏阴性菌以及部分真菌如禾谷镰刀霉均有强烈抑制作用的乳酸菌。

The main pathogens of VAP were Gram negative organisms (68.63%) whose predominant pathogens were Pseudomonas aeruginosa and Acinetobacter. On the other hand, 75.40% of Gram positive organisms were Staphylococcus epidermidis.Of the pathogens 20.98% were eumycetes. Compared from June 1996 to June 2001 with from July 2001 to June 2006,there was no significant difference on the incidence rate of P.aeruginosa(31.76% vs 31.58%).During the recent 10 years,the incidence of Acinetobacter rose up from 8.23% to 15.23% and the rate of oxacillin-resistant Staphylococcus epidermidis rose up from 18.75% to 71.43%. The sensitivity of P.aeruginosa and Acinetobacter isolates descended to sodium imipenem cilastatin and ceftazidime in past 10 years.

在538例VAP中，2种及2种以上致病菌感染占56.51%；革兰阴性细菌中，铜绿假单胞菌和不动杆菌属为VAP的主要致病菌(68.63%)(385/561)；表皮葡萄球菌感染为VAP的主要革兰阳性致病菌(75.40%)(95/126)；真菌占20.98%(183/872)；铜绿假单胞菌在两个时间段所占比例无明显变化，不动杆菌属的检出率呈上升趋势(8.23%～15.23%)；铜绿假单胞菌和不动杆菌属对亚胺培南、头孢他啶的敏感性明显下降，耐苯唑西林表皮葡萄球菌的检出率显著升高(18.75%～71.43%)。

Multi-slice helical CT with MIP and SSD can diagnose ureterolith which is diagnosed by traditional examinatorial method.

多层螺旋CT三维重建并用MIP和SSD能诊断传统检查方法不能显示的输尿管阴性结石，给临床提供定位定性诊断。

Multi-slice helical CT with MIP and SSD can diagnose ureterolith which is diagnosed by traditional examinatorial method.［Key words］ ureter;negative ureterolith;MIP;SSD

多层螺旋CT三维重建并用MIP和SSD能诊断传统检查方法不能显示的输尿管阴性结石，给临床提供定位定性诊断。

Results Amongst the 48 cases, 17 were found to be malignant, 4 suspected and 27 negative by exfoliative cytological examination.

结果〕48例常规浆膜腔积液细胞学检查中，HE诊断阴性27例，恶性17例，可疑4例。

In situ hybridization was used to observe the expression of the MCP-1 mRNA in the walls of the normal arteries and the aneurysms. Results: by the HE straining the walls of the ruptured aneurysms (10 cases) and unruptured ones (2 cases) were consisted of incrassated intima and connectivum extima.

免疫组化：MCP-1组：正常颅内动脉未见MCP-1阳性细胞，未破裂动脉瘤和破裂动脉瘤的阴性对照未见染色细胞。2例未破裂和10例破裂动脉瘤：MCP-1呈高表达，阳性细胞在动脉瘤壁内呈局灶聚集，间断分布动脉瘤内膜。

The enhanced expression of MMP-2 and MMP-9 in AML with extramedullary infiltrates show that they were essential to the invasion of leukemia cells.

提示MMP-9与预后有关。9。为进一步证实MMP-9是预后不良的因素之一，将50例初治患者分为MMP表达阳性组和表达阴性组。

Correct diagnosis were made in 34 malignancies and 6 false positive lesions were excluded based on moiphology and 18F-FDG uptake status of the lesion. There were 6 false positive and 2 false negative cases. Furthermore, extrathoracic metastases which were not showed on previous CT image in 4 patients including one in the adrenal gland and 3 in the bone were detected by 18F-FDG imaging.

根据形态及核素摄取特征，18F-FDG符合线路显像正确检出恶性病变34例，排除恶性病变6例，出现假阳性6例和假阴性2例，对原发肺癌诊断的灵敏度、特异性和准确性分别为94.4％、50.0％和83.3％；同时，在4例患者中检出了CT未发现的、发生于肾上腺和骨的肺外转移。

Furthermore, it eliminates the need for adjuvant treatment in low-risk patients with negative nodes and no extrauterine spread of disease.

另外它减少了淋巴结阴性和无子宫外肿瘤播散的低危患者进行辅助治疗的必要性。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。