双侧颈动脉体瘤的CT和MRI诊断

目的:探讨双侧颈动脉体瘤CT、MRl影像表现.材料和方法:回顾性分析9例双侧颈动脉体瘤的CT和MRI影像表现及其临床资料.结果:9例双侧颈动脉体瘤影像表现为双侧舌骨水平颈动脉鞘区肿块,平扫呈较均匀的等密度或中等信号,增强扫描肿块明显增强.螺旋CT薄层图像可见肿块周边迂曲扩张的供血动脉(5/6),颈内、外动脉间距增宽.MRI最为特征表现是肿块内或周边迂曲条状的血管流空影(10/13).结论:双侧颈动脉体瘤的CT和MRI表现具有特征性,术前可以做出定性诊断.     

重组人内皮细胞抑制素腺病毒载体的构建及其应用

目的　构建表达人内皮细胞抑制素 (Endostatin)的重组腺病毒载体 ,并进行活性检测。方法　将含有IL3分泌肽的人Endostatin全长cDNA插入穿梭质粒pAdCMV产生重组质粒pAd IL3 Endo ,通过脂质体介导与 pBHG1 0共转染 2 93细胞 ,经同源重组产生重组腺病毒Ad IL3 Endo。体外转染人结肠癌SW62 0细胞并观察其上清对人脐静脉内皮细胞 (HUVEC)生长的影响。结果　扩增到的Ad IL3 Endo的滴度为 4 .3× 1 0 1 2 空斑形成单位 (pfu) /L ,多聚酶链反应 (PCR)显示在转染的细胞中有人EndostatincDNA的存在 ,Westernblot显示转染细胞上清中有人Endostatin蛋白表达 ,台盼蓝染色显示其上清作用 72h后HUVEC的生长被抑制了 67% (P <0 .0 5)。结论　所制备的重组人Endostatin腺病毒载体能有效表达具有生物学活性的人Endostatin ,为进一步的研究奠定了基础     

β转化生长因子及其受体在增生性瘢痕退行性变过程中的表达

目的 探讨增生性瘢痕退行性变过程中不同时期哌β转化生长因子(transforming growth factorβ,TGF-β)及其受体(transforming growth factor β receptor,TGF-β-R)的表达变化规律和意义.方法 对8例烧伤后增生性瘢痕患者退行性变过程中的增生活跃期和成熟稳定期的瘢痕组织进行免疫组织化学,观察增生性瘢痕退行性变过程中TGF-β1、TGF-β2、TGF-β3及TGF-β-R Ⅰ、TGF-β-RⅡ的表达.结果 免疫组织化学显示,增生活跃期的增生性瘢痕组织以TGF-βl、TGF-β2和TGF-β-R Ⅰ阳性表达为主,TGF-β3和TGF-β-RⅡ仅见弱阳性表达;成熟稳定期的增生性瘢痕中TGF-β3和TGF-β-RⅡ的表达强度明显强于增生活跃期,而TGF-B1、TGF-β2和TGF-β-RⅠ的表达强度为弱阳性或阴性.结论 TGF-β及其受体不同水平的表达与增生性瘢痕从增生活跃至成熟稳定的退行性过程密切相关.     

军队医院预防保健工作的模式转换

为探讨军队医院预防保健模式，本阐述了新形势下预防保健工作的着眼点，预防保健工作的方法，以及预防保健工作的对象；为新时期提高我军官兵的健康提供可借鉴的经验。     

血管生成素2与腹膜透析时腹膜血管新生的关系

Objective To investigate the association between angiopoietin-2 (Angpt-2) and peritoneal angiogenesis in a uremic peritoneal dialysis (PD) rat model. Methods Uremic (subtotal nephrectomy) rats were established and divided into non-PD, 10 d-PD, 28 d-PD and 56 d-PD groups. Standard PD solution was applied in the study. Rats undergone sham operation without PD were used as control group. Vessel density of the peritoneum was detected and quantified with anti-CD31 immunohistochemical staining. Expressive levels of Angpt-2 and vascular endothelial growth factor (VEGF) were examined in the peritoneum by real-time PCR and Western blotting. Results The non-PD group was characterized by increased vessel density in the peritoneum compared with that of the control group [(5±3)/HP vs (1±1)/HP]. Progressive angiogenesis was found in 10 d-PD, 28 d-PD and 56 d-PD groups [(10±5)/HP, (17±5)/HP, (19±4)/HP]. Furthermore, expressive levels of Angpt-2 and VEGF increased significantly in the non-PD group compared with the control (P<0.01), and such expressions were significantly higher in the PD groups as compared to non-PD group (P<0.01), but no difference was found among the PD groups. Both VEGF and Angpt-2 levels were positively correlated with vessel density(r=0.7756, P<0.01; r=0.5223, P<0.05). Conclusions Uremia and PD promote peritoneal angiogenesis in rats. Increased expression level of Angpt-2 in peritoneum is positively correlated with peritoneal angiogenesis. Angpt-2 may be a new therapeutic target of peritoneal angiogenesis.     

胰腺实性假乳头状瘤的诊治现况

胰腺实性假乳头状瘤(solid pseudopapillary tumor of the pancreas,SPTP)最先于1959年由Frantz等[1].描述,是一种少见的、具有恶性潜质的肿瘤,约占所有胰腺肿瘤的1%,胰腺囊性肿瘤的3%[2].近年来其发病率明显上升,多数病例为近十年内报道,至今国内外已报道SPTP 900余例[3,4].大多数临床医师对其缺乏认识,常误诊为囊腺瘤、囊腺癌或胰岛细胞瘤,该文就近年来SPTP的诊治情况作一综述.     

金泽荣和中国文化名人的诗文交往

1905年朝鲜李朝王廷弘文馆纂辑所正三品通政大夫金泽荣流亡中国,在张謇的帮助下寓居南通,任翰墨林书局编校。金泽荣在南通出版了30余部著作,为保存祖国文化,同时也为翰墨林书局出版事业的发展繁荣作出了杰出贡献。案牍之余,金氏广泛结交中国文友,建立了深厚的友谊。这些人中有被胡适列举应该作传记的中国文化名人俞樾、张謇、严复、梁启超,屠寄、郑孝胥等。他们意气相投,诗文酬唱,书信往返,雅集宴饮,在中外文化交流史上写下了值得纪念的篇章。     

Clinical epidemiological analysis of the relationship between pancreatic cancer and diabetes mellitus: Data from a single institution in China

OBJECTIVE: To investigate the relationship between pancreatic cancer (PC) and diabetes mellitus. METHODS: All PC patients diagnosed and treated at Zhongshan hospital from January 1991 to December 2007 were retrospectively analyzed. During this period, 770 non‐digestive tract, non‐neoplastic and non‐hormone‐related patients matched for sex and age were collected as controls. The incidence of diabetes mellitus between the two groups was compared. RESULTS: Between the PC group and the control group, sex and age of the patients were well matched. The incidence of diabetes mellitus was 34.63% in the PC group and 8.83% in the control group (P < 0.001, RR = 5.19). In the PC group there was no correlation between age, sex, site of the cancer, tumor differentiation, lymph node metastasis, TNM staging and the incidence of diabetes mellitus. In this group with diabetes, 74.56% experienced onset within two years of cancer diagnosis. Of the control patients, 57.35% had had diabetes for under 2 years (P = 0.009, RR = 2.18). In the PC group with diabetes, 5.9% had had diabetes for more than 10 years while compared with 8.8% of the controls (P = 0.42). CONCLUSION: Whether diabetes mellitus is a result of or a risk factor for PC is still unclear. The incidence of diabetes mellitus is much higher in the PC patients. The onset of diabetes mellitus in adults might be an alerting factor that could lead to an early diagnosis of pancreatic cancer.