AIM: To investigate autofluorescence (AF) images of classical retinitis pigmentosa (RP) at advanced stage correlated with central vision. METHODS: Thirty-seven patients (70 eyes) with classical RP at advanced stage were observed. AF imaging was performed using a Heidelberg Retina Angiograph 2 ( HRA-2) scanning laser system with the field 30°, the pixels 1 536×1 536 and pupil diameters >6mm. Some patients underwent automated static peri-metry and the flash electroretinogram(FERG) were performed according to International Society for Clinical Electrophysiology of Vision( ISCEV) standard. RESULTS: All patients were classified as four patterns according to their manifestation of AF they were intact, patchy, solitary island and central hypofluorescence patterns. Different pattern showed different central vision. The data demonstrate high correlation between the central cone function and AF changes of the fundus. There is significant correlation (n= 57, r= 0.385,P＜0.01) between central vision and the AF area and between age and AF area (n= 57, r= -2.67,P＜0.05).CONCLUSION: AF images is valuable to the monitoring of central cone function and in predicting retention of central vision. The changes of AF images correlated with central vision and different pattern showed different vision.

Objective To determine the transfection of PTEN gene in human ovarian carcinoma SKOV3 cells by ultrasound mediating and contrast agent′s enhancing, and to explore the mechanism of PTEN gene inhibiting the tumor cells′ invasion. Methods After addition of PTEN gene and 5 ?l lipofectamine,human ovarian carcinoma SKOV3 cells on 6-well plates were explored to ultrasound for 60 s in the presence(200 ?l) of ultrasound agent. The invasiveness of transfected cells was measured quantitatively by Matrigel invasion assays(Transwell chamber) after 48 h. Results The invasiveness of SKOV3 cells transfected by ultrasound-mediated PTEN gene was significantly declined compared with that of the controls. Conclusions The transfection of PTEN gene into SKOV3 cell can inhibit their invasion.The gene transfection can be enhanced by ultrasound and contrast agent,which may be expected to be a new means of clinical gene therapy.

Objective To establish a GC method for simultaneous determine of camphor, borneol and bornyl acetate in Shenling Baizhu Powder. Methods Capillary column was used with 100% methyl polysiloxane as stationary phase. The temperature-programmed was as follows:starting temperature of 60 ℃, 5 ℃/min, rose to 130 ℃, kept for 5 minutes, followed by 20 ℃/min up to 230 ℃, and kept for 5 minutes. Results The average recovery rate of camphor was 99.87%, RSD was 1.3%, and good linear relationship was showed in the range of 0.003 77-0.150 8 μg (r=0.999 9). The average recovery of borneol was 100.71%, RSD was 2.1%, and good linear relationship was showed in the range of 0.002 411-0.096 4 μg (r=0.999 9). The average recovery rate of bornyl acetate was 101.95%, RSD was 1.3%, and good linear relationship was showed in the range of 0.003 02-0.121 1 μg (r=0.999 9). Conclusion The method is simple, reliable, accurate, and can effectively control the quality of Amomi Fructus in Shenling Baizhu Powder.

Objective To compare the therapeutic effects and side effects of cisplatin-S-1 (CS) program and docetaxel-cisplatin-S-1(DCS) program on patients with malignant gastric tumor who were treated by laparoscopic gastrectomy.MethodsA total of 67 patients in our hospital from January 2010 to June 2013 were included in this study,of which 33 cases accepted cisplatin-S-1 program (CS group),34 cases accepted DCS program (DCS group).The related side effects including diarrhea,nausea and acute upper respiratory infection,change of routine blood tests,blood biochemical index,and death caused by chemotherapy were analyzed.The related index of surgery including operation time,blood loss,recovery time of gastrointestinal function,pain incidence,hospital stay,lymph nodes resection success rate,postoperative infection,obstruction,intestinal emptying delays were recorded.Meanwhile,the 3-year survival rate after operation and postoperative 3-year recurrence rate between the two groups were compared.Results There was no significant difference in operation time,intraoperative blood loss,postoperative recovery time of gastrointestinal function,the lymph nodes resection success rate,the incidence of postoperative pain,as well as the length of hospital stay,postoperative infection rate,and complications such as obstruction and intestinal emptying delays between the two groups(P>0.05).And there was no significant difference in chemotherapy-related complications between the two groups(P>0.05).But the postoperative 3-year survival rate and postoperative 3-year recurrence rate of DCS group was better than those of the CS Group(P<0.05).Conclusion There is no significant difference in complications and surgery-related index between the two preoperative chemotherapy.However,the DCS programs have more advantages in therapeutic effects.

Objective To analyze the differential expression of proteome between metastatic lymph nodes and normal lymph nodes in esophageal squamous cell carcinoma.Methods Two dimensional polyacrylamide gel electrophoresis(2-DE)technique and computer-assisted image analysis were used to separate the protein spots and analyze the differential expression of proteome in the metastatic lymph nodes and normal lymph nodes.Results There were 23 protein spots significantly differentially expressed,of which 4 protein spots were newly found,1 protein spot disappeared,14 protein spots increased markedly,and 4 protein spots decreased significantly.Conclusion The proteomic expression in metastatic lymph nodes of esophageal squamous cell carcinoma is significantly different from that of the normal lymph nodes,which may be associated with the mechanism of metastasis of esophageal squamous cell carcinoma.

Background and purpose: Pancreatic cancer is often diagnosed at advanced stage, therefore, chemotherapy remains the cornstone of treatment for advanced pancreatic cancer. However, no standard regimen has been established as second-line therapy for advanced pancreatic cancer. The purpose of the study was to evaluate the efifcacy and safety of albumin-bound paclitaxel plus S-1 for the treatment of advanced pancreatic cancer patients in second-line setting after the failure of gemcitabine treatment. Methods:Clinical outcomes of 19 patients with advanced pancreatic cancer were analyzed. These patients received albumin-bound paclitaxel plus S-1 as second-line therapy after the failure of gemcitabine treatment. Albumin-bound paclitaxel was administered at a dose of 125 mg/m2 over 30 minutes on day 1 and 8 of a 21-day cycle. From d1-14, all patients received oral S-1 40 mg/m2, twice daily. Results:All patients were available for evaluation. Of the 19 patients, 1 case got complete response (CR), 4 cases had partial response (PR) and 9 cases had stable disease (SD). The objective response rate (ORR) was 26.3%, the disease control rate (DCR) was 73.7%and the median progression free survival (PFS) was 5.2 months. The main toxicities include hematological toxicity, myodynia, gastrointestinal reactions, sensory neuropathy, fatigue and alopecia. Conclusion:The combination of albumin-bound paclitaxel and S-1 is effective and tolerated in the treatment of advanced pancreatic cancer patients who resistant to gemcitabine.

Objective:To evaluate the characteristics of contrast-enhanced ultrasonography in renal VX2 tumors.Methods: VX2 tumors were transplanted into 12 rabbit kidneys and observations were made by contrast-enhanced ultrasonography 7,14 and 21 days after the transplantation respectively.Results: The best intervention time was 2-3 weeks after the tumor transplantation,while nicrosis was apt to occur after 3 weeks.The visibility of the renal tumors was significantly increased from 57.1%(12/21) to 100%(21/21).Contrast-enhanced ultrasonography showed defect and delineation of VX2 tumors. Conclusion: Contrast-enhanced ultrasonography can improve the peripheral and internal blood flows of the tumors promote the diagnosis of renal tumors.

Objective To evaluate the efficiency and safety of hair removal with Lightsheer 800 nm diode laser. Methods Lightsheer, 800 nm diode laser, was used to remove hairs from different areas, including hairlines, lips, whiskers, armpit, chest, back, limbs and bikinis area, in 432 patients. Results At least twice treatments, the maximum 29 times, were needed to achieve satisfactory results. Total effective rate increased with the treatment times but depended on the different area:63.4 % of hairlines, 67.7 % of lips, 71.9 % of whiskers, 100 % of armpit, 100 % of chest, 100 %of back, 82.6 % of limbs and 100 % of bikinis area, respectively. The adverse effect was observed with temporal hypopigmentation in 4 patients and hyperpigmentation in 9 patients, without any scar formation. Conclusions Lightsheer 800 nm diode laser is a safe and efficient method of laser hair removal.

Objective　To investigate the effect of total gastrectomy for gastric malignancy(GM). Methods　The clinical data of total gastrectomy in 113 patients with GM were analysed retrospectively. Results　Radical total gastrectomy was performed in 97 cases, palliative total gastrectomy in 16 cases, combined with resection of head or tail of pancreas, splenectomy, transverse colectomy or parital hepatectomy in 19 cases. Reconstruction of digestive tract : Roux-en-Y esophagojejunostomy in 26 cases, Braun esophagojejunostomy in 19 cases, Roux-en-Y jejunal p-type anastomosis in 68 cases, Postopterative complications occurred in15 cases,including pancreatic fistula in one cases,anastomostic leakage in 3; operative death was happened in 2 cases.　86 patients (76%)have been followed up, the postoperative 1-,3-,5-year survival rate in radical total gastrectomy, combined resection organs and palliative total gastrectomy was 77.9％,45.7％,37.2％;88.8％,55.5％,33.3％; and 80％,0％,0％ respectively. Conclusions　The effect of total gastrectomy for gastric malignancy can be successful, if the indications are stricted and combined with rational viscers resection.

BACKGROUND: There still is rarely report about the effect of glycosylphosphatidilinoditol-specific phospholipase D (GPI-PLD) on the adhesion function of leukemic cells through screening Medline and CNKI databases.OBJECTIVE: To observe the effect of GPI-PLD on the adhesion function of bone marrow mononuclear cells separated from myeloid leukemia patients, and to investigate the related mechanism. DESIGN, TIME AND SETTING: This study addressing cytology in vitro was conducted at the Hematological Laboratory of Xiangya Hospital from January to June 2004.MATERIALS: Bone marrow was collected from myeloid leukemia patients at the Department of Hematology, Xiangya Hospital, China.METHODS: The GPI-PLD activity of bone marrow mononuclear cells separated from myeloid leukemia patients was measured by using GPI-anchored placental alkaline phosphatase as substrate and Triton-X114 partition. By use of 1,10-phenanthroline, the activity of GPI-PLD was inhibited, the experiment was divided into 2 groups: treatment group adding phenanthroline to achieve a final concentration of 1 mmol/L, while control group adding the same amount of phosphate buffered saline. The adhesion rate to the fibronectin and CD24 expression of these cells were measured by MTT and immunohistochemical method, respectively.MAIN OUTCOME MEASURES: GPI-PLD activity of myeloid leukemic cells, cell adhesion rate, CD24 expression were all measured. RESULTS: The GPI-PLD activity of bone marrow mononuclear cells separated from myeloid leukemia patients was inhibited significantly after these cells were treated by 1 mmol/L 1,10-phenanthroline for 5 hours compared with control groups [(5.40±2.96)%, (42.08±7.21)%, P < 0.01]. At the same time, the adhesion rate of these cells were increased after the GPI-PLD activity was inhibited [(61.19±29.14)%, (49.78±26.73)%, P < 0.01], and the CD24 expression was also up-regulated [(18.5±11.14)%, (16.02±9.68), P < 0.01].CONCLUSION: The adhesion rate of bone marrow mononuclear cells separated from myeloid leukemia patients can be promoted by inhibiting GPI-PLD activity. At the same time, the CD24 expression of GPI-anchored proteins on bone marrow mononuclear cells is improved.