Objective To study the inhibitive effect of adenovirus mediated CD gene and 5-FC on proliferative human retinal pigment epithelial (HRPE) cells, and to search for an effective method to take precautions against proliferative vitroretinopathy (PVR).Method Different concentrations of CD and 5-FC were added respectively to the cultured third-growth-generation HRPE cells.Transferance rate was detected by positive HRPE cells marked by X-gal and LacZ. The number of HRPE cells were counted and evaluated by methylthiazol-tetrazollium (MTT) method. Results The adenovirus mediated CD gene could be transfered into HRPE cells with a dose-dependent manner. Positive HRPE cells with CD gene could transform 5-FC to 5-Fu,which could inhibit the increase of HRPE cells effectively. No obvious bystander effect on the growth of HRPE cells was detected.Conclusions The adenovirus may introduce a foreign gene into cultured HRPE cells efficiently. It could be a good method to treat and prevent PVR by medication. (Chin J Ocul Fundus Dis，2003，19：168-171)
Surgery is an important method for the treatment of malignant tumors. Sevoflurane is one of the most common general anesthetics, which can directly or indirectly affect the biological behavior of cells and the immune function of tumor patients, thereby affecting the recurrence and metastasis of tumor patients after surgery. From the aspects of microRNA, matrix metalloproteinase, phosphatidylinositol-3-kinase/Akt signaling pathway and hypoxia-inducible factor-1α, this article summarizes the molecular mechanisms of sevoflurane affecting the biological behavior of tumor cells, and clarifies the regulation mechanism of sevoflurane on the immune function of tumor patients. It is expected to provide a theoretical basis for precise anesthesia for tumor patients, and to provide medication basis for reducing postoperative recurrence and metastasis of tumor patients.
Objective We aimed to determine the efficacy and complication of sevoflurane maintenance in children. Methods Trials were collected through electronic searches of MEDLINE, EBSCO, OVID, Springer, Foreign Journals Integration System, CNKI, and CMBdisk (from the date of building the database to April 2008). We also checked the bibliographies of retrieved articles. Results A total of 20 trials involving 1 592 patients were included. The Metaanalysis showed: ① Recovery time: sevoflurane was similar with propofol [WMD=0.22, 95%CI (–2.86, 3.30)], but slower than desflurane [WMD=5.01, 95%CI (2.87, 7.16)], and faster than isoflurane [WMD= –0.55, 95%CI (– 0.74, –0.37)]; ② Discharge time: sevoflurane was similar with propofol [WMD= –4.39, 95%CI (–10.02, 1.25)], desflurane[WMD=1.13, 95%CI (–3.25, 5.51)], and isoflurane [WMD= –8.17, 95%CI (–17.94, 1.60)]; ③ Postoperative agitation: sevoflurane was much more obvious than propofol [RR=5.53, 95%CI (2.99, 10.21)], but superior than desflurane [RR=0.55, 95%CI (0.35, 0.88)], and similar with isoflurane [RR=1.24, 95%CI (0.85, 1.800]; ④ Postoperative nausea and vomiting (PONV): sevoflurane was much more severe than propofol [RR=2.17, 95%CI (1.21, 3.90)], and no difference with desflurane [RR=0.88, 95%CI (0.61, 1.25)]; ⑤ Oculocardiac reflex: sevoflurane was less than propofol [RD= – 0.42, 95%CI (–0.56, –0.27)], and no difference with desflurane [RR=0.93, 95%CI (0.61, 1.41)]. Conclusion The limited current evidence shows no difference between sevoflurane and propofol in recovery time, while the effect of sevoflurane is faster than isoflurane and slower than desflurane. There are no differences among sevoflurane, desflurane, isoflurane, and propofol in discharge time. The incidence of postoperative agitation of sevoflurane is higher than that of propofol, but lower than that of other inhaled anesthetics. The incidence of PONV of sevoflurane is higher than that of propofol. The incidence of oculocardiac reflex of sevoflurane is lower than that of propofol and similar with that of desflurane.
Primary hepatocellular carcinoma is a common cancer. Many patients are found with intermediate-advanced stage, rapid development, poor treatment and high mortality. 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG PET/CT) can discover the early lesions and therefore plays an important role in diagnosis, treatment and prognosis of patients with hepatocellular carcinoma. It especially has obvious advantages in detecting metastasis and monitoring recurrence. However, 18F-FDG PET/CT imaging has poor quality and low diagnosis rate. Understanding the advantages and limitations of 18F-FDG PET/CT can provide better basis for clinical diagnosis and treatment for hepatocellular carcinoma patients. This article briefly introduces the research and application of 18F-FDG PET/CT in the diagnosis and treatment of hepatocellular carcinoma.
【摘要】 目的 探討肝炎后肝硬化自發性細菌性腹膜炎（spontaneous bacterial peritonitis，SBP）的診療情況及頭孢哌酮舒巴坦聯合左旋氧氟沙星對SBP的治療效果。 方法 對2004年1月-2009年12月收治的54例肝炎后肝硬化SBP患者，應用頭孢哌酮舒巴坦聯合左旋氧氟沙星給與治療，并觀察分析治療效果。 結果 肝炎后肝硬化SBP的臨床表現以發熱，腹痛為主，具有典型腹膜刺激征的不足半數。外周血白細胞升高者不多見，腹腔積液中白細胞計數、PMN計數和細菌培養是自發性細菌性腹膜炎的重要診斷指標。 結論 肝炎后肝硬化合并SBP的臨床表現不典型。致病菌以G-桿菌為主。在早期診斷、綜合治療的基礎上，頭孢哌酮舒巴坦聯合左旋氧氟沙星對自發性細菌性腹膜炎的治療效果顯著。【Abstract】 Objective To evaluate the diagnosis and treatment of post-hepatitis cirrhosis complicated with spontaneous bacterial peritonitis (SBP) cases and the efficacy of cefoperazone and sulbactam combined with levofloxacin in the treatment of cirrhotic patients with SBP. Methods From January 2004 to December 2009, the clinical data from 54 cases of SBP after cirrhosis were analyzed. The patients underwent the treatment of cefoperazone sulbactam combined with levofloxacin. The therapeutic effect was observed. Results The main clinical manifestations were fever and abdominal pain, and about half of the patients had the typical peritoneal irritation. Only a few patients had elevated peripheral white blood cells (WBC). The WBC count, abdominal effusion polymorphonuclearcyte count and bacteria cultivation were the indexes of diagnosis of SBP. Conclusion The clinical features of post-hepatitis cirrhosis complicated with SBP are not typical. The main pathogenic bacteria is G- bacilli. In the early diagnosis and treatment, cefoperazone sulbactam combined with levofloxacin is effective.
Objectives To analyze the effect of improved oven for defluorination in coal-burning endemic fluorosis areas in China, and to provide evidence for the prevention and control of fluorosis. Methods Electronic databases including CNKI, CBM, VIP and CDMD-D (1989 to 2005), were searched. We also checked the reference lists of relevant articles. We selected relevant articles according to the predefined inclusion and exclusion criteria. The methodological quality was assessed . Data on room heat preservation and the effect of improved oven for defluorination were collected in the surveillance spots of Three Gorges Reservoir. Correlation analyses were conducted between the improved oven and its effect parameters. Results Twelve articles of low quality met the selection criteria, of which 9 were graded C and 3 were graded D in terms of the methodological quality. A negative correlation was found between the decreasing rate of normal oven use and the decreasing rate of dental fluorosis as well as of urine fluorine (Pearson correlation coefficient r = – 0.87, – 0.63, Plt;0.01, lt;0.05, respectively). Analysis also revealed a positive correlation between room heat preservation and the decreasing rate of dental fluorosis as well as of normal oven use (the two Spearman correlation coefficients and P values were the same: r = –1.00, Plt;0.01). Conclusion High-quality studies on the effect of improved oven for defluorination in China are not available. Based on the current evidence, the improved oven for defluorination and the correct use, maintenance and house rebuilding for heat preservation may help to prevent fluorosis.
目的 探討術中應用緩釋5-氟尿嘧啶在結直腸癌治療中的價值及安全性。方法 回顧性分析173例結直腸癌患者術中應用緩釋5-氟尿嘧啶后的療效和不良反應。結果 171例患者順利出院，1例患者死于嚴重骨髓抑制，1例死于真菌敗血癥； 無出血、吻合口漏、腸穿孔、腸梗阻等嚴重并發癥發生。155例患者獲6個月至3年的隨訪，隨訪期間死亡23例，發生局部復發5例，肝臟等遠處轉移3例。結論 結直腸癌術中使用緩釋5-氟尿嘧啶是安全、有效的。
ObjectiveTo observe effect and safety of interstitial chemotherapy with 5-fluorouracil sustained release agent in radical operation of colorectal cancer. MethodsOne hundred and sixty patients with colorectal cancer from October 2011 to December 2013 were randomly divided into observation group and control group according to an incomplete random method, 78 cases of them were in the observation group and 82 cases of them were in the control group. All the patients were performed radical resection of colorectal cancer. The abdominal cavity and pelvic cavity were washed after surgery. 5-fluorouracil sustained release agent was implanted in the observation group patients for interstitial chemotherapy, the implant site was at the tumor resection area and the mesenteric artery. Routine chemotherapy was performed in these two groups after operation. The postoperative complications were observed. The postoperative local recurrence rate, liver metastasis rate, and 24-month survival rate were recorded. ResultsThe rates of abdominal complications and toxic effects had no significant differences between these two groups (P > 0.05). The rates of 12-month and 24-month local recurrence and the rate of liver metastasis in the observation group were significant lower than those in the control group[1.3% (1/78) versus 8.5% (7/82), x2=8.934, P=0.023; 5.2% (4/78) versus 23.2% (19/82), x2=14.834, P=0.004; 10.3% (8/78) versus 18.3% (15/82), x2=12.034, P=0.016]. The rate of 24-month survival in the observation group was significant higher than that in the control group[94.9% (74/78) versus 84.1% (69/82), x2=11.465, P=0.010]. ConclusionThe good safety of interstitial chemotherapy with 5-fluorouracil sustained release agent could effectively decrease local recurrence rate and liver metastasis rate of colorectal cancer after radical operation and improve survival time of patients.
ObjectiveTo explore the clinical efficacy of modified polytetrafluoroethylene (PTFE) prosthesis rhinoplasty for correction of low nose and short columella. MethodsBetween August 2012 and August 2015, modified PTFE prosthesis rhinoplasty was used to correct low nose and short columella in 52 patients. There were 4 males and 48 females, aged 19 to 45 years (mean, 27 years). Primary rhinoplasty was performed in 47 cases; secondary rhinoplasty was performed in 5 cases, and it was 12-18 months from the first operation (mean, 15 months). During operation, a scaly sag ventral side was made by carving and moving cap shaped nose prosthesis was prepared, and nasal dorsumnasal columella prosthesis covered by tension-free flap was designed. At pre-operation and last follow-up, Image ProPlus 6.0 software was used to measure the nose length, nose depth, nose tip width, nostril/nose tip, nasolabial angle, and nasal tip rotation for evaluation of external nose shape correction; and ultrasound was used to measure the alar cartilage angle, alar two vertex distance, and nose tip to vertex distance for evaluation of internal soft tissue changes; the prosthesis position was observed by CT scan at 12 months. ResultsAll incisions healed by first intention, with no complications. All patients were followed up 7-36 months (mean, 20.4 months). At 12 months after operation, CT scans showed that prosthesis located in the middle of the nose and above nasal bone, septal cartilage and crus mediale cartilaginis alaris majoris in 45 patients; no prosthesis displacement was observed. At last follow-up, image measurement and ultrasound results showed external nose shape parameters (except nostril/nose tip) and internal soft tissue structures were significantly improved when compared with preoperative values (P < 0.05). ConclusionModified PTFE prosthesis rhinoplasty can effectively correct low nose and short columella, with small surgical trauma and good appearance.