BACKGROUND: High blood lipid can cause a series of cardiovascular and cerebrovascular disease, which has been commonly accepted.OBJECTIVE: To probe into the rule of changes of blood lipid of the elders in aging process.DESIGN: Cross section survey.SETTING: Department of Nutrition, Shanghai Huadong Hospital. PARTICIPANTS: Totally 605 employees who took part in body examination and participated this experiment voluntarily from July 2000 to August 2004, were recruited, including 541 males and 64 females, 91 patients ＜ 70 years , 514 ≥ 70 years, 271 patients having the history of coronary heart disease, 83 of malignant tumors, and 251 of other diseases.METHODS: Blood lipid level of totally 605 who accepted physical examination was detected, at the same times, the disease history and common physical examination status were inquired. Venous blood of the patients was drawn after fasting over 12 hours, separating serum on the morning of the same day. Total cholesterol and triacylglycerol of the blood were detected with enzyme assay by using Automated Biochemistry Analyzer. Total cholesterol: 3.6-6.5 mmol/L; triglyceride: 0.4-1.8 mmol/L were considered as normal level, Total cholesterol: ＞ 5.72 mmol/L;Triglyceride: ＞1.72 mmol/L were considered as abnormal criteria.MAIN OUTCOME MEASURES: Comparison of the blood lipid index of the subjects of different age, disease type and gender RESULTS: Totally 605 elders were involved and all data of them was enthe blood lipid index of the subjects of different age: Peak of total cholesterol appeared at 70 to 74 years, then decreases gradually, the total cholesterol level of the subjects of 70 to 74 years was significantly higher than that at other age (P ＜ 0.05). While Triglyceride level had the trend of going up with growing older, except that of 75-79 ages group slightly went eases: The level of total cholesterol and triglyceride of the subjects in the malignant tumor group was lower than that of other disease groups, level of triglyceride of the subjects in the coronary heart disease was higher than detection rate of blood lipid of the subjects: Detection rate of total cholesterol was 15.5%, while that of triglyceride was 35.9%. There was no significant difference of the detection rate between male and female subjects (P ＞ 0.05).CONCLUSION: Change of blood lipid metabolism of elder with aging is related to the hormone change of different genders and disease types.

Objective To evaluate the effects of adenovirus-thediated PTEN gene transfer on growth and invasion of H22 cells in vitro. Methods H22 cells were tnmsfected with Ad-PTEN and Ad-PTENG-129R it vitro, The mRNA expressions of PTEN were detected with RT-PCR. Cell viability was determined by MTT assay. Invasion of H22 in vitro was observed using Boyden chamber. Results Gene and protein expressions of PTEN were shown to be up-regulated when H22 was transfected with Ad-PTEN. MTT assay showed that the group transfected with Ad-PTEN had much lower cell viability than other groups (P<0.05) . The number of 1422 invasion cells in the group of Ad-PTEN was (15.64±3.27) %, which was lower than the number in other groups (P<0.05). Conclusion These results imply that the number of H22 invasion cells was significantly decreased after infected with Ad-PTEN in vitro.

Distributed architectures support increased load on popular web sites by dispatching client requests transparently among multiple servers in a cluster. Packet Single-Rewriting technology and client address hashing algorithm in ONE-IP technology which can ensure application-session-keep have been analyzed, an improved request dispatching algorithm which is simple, effective and supports dynamic load balance has been proposed. In this algorithm, dispatcher evaluates which server node will process request by applying a hash function to the client IP address and comparing the result with its assigned identifier subset; it adjusts the size of the subset according to the performance and current load of each server, so as to utilize all servers' resource effectively. Simulation shows that the improved algorithm has better performance than the original one.

Objective To study a new closed medical waste transportation vehicle. Methods The carriage,doors,floor drains pipes and spray system are all used in stainless steel materials with made through the welding. Results The vehicle can protect medical staffs from pollution of medical waste and enhance occupational health protection for staff. Conclusion The vehicle is closed that has the function of 360? spray cleaning and disinfection system,and it many advantages such as the use of safe,effective,energy saving,convenient and development application.

Objective To discuss the safety of nephron sparing surgery for central renal tumors. Methods Thirty-eight cases of partial nephrectomies for central type renal masses were performed.One hundred and seventeen cases of partial nephrectomies with peripheral type renal tumors were compared. Results For the patients with central renal tumors,mean operative time was 118 minutes.Mean isehemic time was 34 minutes.Mean blood loss was 150 ml.The major postoperative complication included leakage of urine(1 case).For the patients with peripheral based tumors,mean operative time was 95 minutes.Mean ischemic time was 21 minutes(only renal artery clamped)and 17 minutes(complete block).Mean blood loss was 250 ml(only renal artery clamped)and 100 ml(complete block).The major postoperative complication included postoperative bleeding(4 cases). Conclusion According to the standard operative procedure,the nephron sparing surgery for central renal tumors is a safe procedure.

China ; Humans ; Laparoscopy ; education ; Mentors ; Urology ; education

In this study, we aimed to investigate the influences of conditioned medium from human umbilical vein endothelial cells (HUVEC) on cancer stem cell phenotype of human hepatoma cells. HUVEC and human hepatoma cells (MHCC97H) were cultured, respectively, and then the MHCC97H cells were co-cultured with conditioned medium from HUVEC (EC-CM) with Transwell system. Anti-cancer drug sensitivity, colony-formation, migration/invasion ability, expression of cancer stem cell marker and sphere formation were performed to determine the cancer stem cell phenotype in MHCC97H cells. We found that MHCC97H cells co-cultured with EC-CM exhibited significantly higher colony-formation ability and lower sensitivity of anti-cancer drugs 5-FU and Cis. Transwell assay showed that treatment with EC-CM obviously increased migration and invasion of MHCC97H cells. Moreover, increased sphere forming capability and expression of CD133 in MHCC97H cells were observed after co-cultured with EC-CM. These results suggested that EC-CM could promote cancer stem cell phenotype of hepatoma cells.
Antineoplastic Agents ; pharmacology ; Carcinoma, Hepatocellular ; Cell Line, Tumor ; Coculture Techniques ; Culture Media, Conditioned ; Fluorouracil ; pharmacology ; Human Umbilical Vein Endothelial Cells ; chemistry ; Humans ; Liver Neoplasms ; Neoplastic Stem Cells ; cytology ; Phenotype

Objective:To investigate the effects of slowly release(SR) carbohydrate system on glucose and lipide metabolism in the elder patients with type 2 diabetes. Methods:The previous enteral nutrition was replaced totally or partially with Glucerna in 11 cases of elder patients with type 2 diabetes for 1-3 months.The changes in hemoglobin, lymphocyte counts, serum albumin, total protein, glycemia, postprandial 2 hours blood glucose,glycosylated hemoglobin, triglyceride, cholesterol, kidney function,electrolytes and the symptoms of gastrointestinal tract were observed. Result:Total protein(P

Objective:To investigate the role of SDF-1/CXCR4 in metastasis of renal cell carcinoma and to observe the intracellular location of different CXCR4 segments in renal carcinoma cells.Methods:The potential nuclear localization sequences of different CXCR4 were discovered by nuclear localization software and experiments.Full length and truncated forms of CXCR4 were fused with green fluorescent protein pEGFP-N1 and their influence on subcellular localization was examined by confocal microscopy after transfecting them into renal carcinoma cell line A498.Results:Analysis with PSORT Ⅱ Prediction revealed that the nuclear localization sequence region of CXCR4 was located between amino acids 146 and 149(RPRK).Expression products of the recombinant plasmids with SDF-1 stimulation,including EGFP-CXCR4(1-510 bp),EGFP-CXCR4(1-765 bp) and wild-type EGFP-CXCR4,were mainly located in the cell nuclei.However,expression product of EGFP-CXCR4(1-267 bp) with SDF-1 stimulation was mainly located in the renal cell cytoplasm.Expression product of wild-type EGFP-CXCR4 full length plasmid without SDF-1 stimulation was mainly located in the cell cytoplasm;these results accorded with the results of bioinformatics analysis.Conclusion:Nuclear localization sequence of CXCR4 is located in the amino acids 90 to 170,which provides a theoretical basis for further clarifying the nuclear localization sequences of CXCR4 in renal cell carcinoma cells and for finding new potential target for inhibiting the metastasis of renal cell carcinoma.

Objective To analyze the distribution of tophus in ankle and tarsal joints by multislice spiral computed tomography (MSCT)and to explore the pathogenesis of gout.Methods 34 patients with a documented diagnosis of gout underwent CT examina-tion of bilateral ankle and tarsal joints,and 55 ankle and tarsal joints were observed tophus.The sites of tophus deposition were cate-gorized into groups of ligament,tendon and joint in order to record and analyze.Results The tophus were showed at the anterior talofibular ligament (n=38),the medial ligament (the site of talus and calcaneus)(n=30)and the interosseous talocalcaneal liga-ment (n=29)(P <0.05)in the group of ligament;at achilles tendon (n= 18),followed by tibialis posterior tendon (n= 7)(P <0.05)in the group of tendon;at articulations intercuneiformes (n=1 5)and inferior tibiofibular articulation (n= 10)(P <0.05 )in the group of joint.Conclusion In ankle and tarsal joints,tophus is commonly deposited at the anterior talofibular ligament,at the achilles tendon and the articulationes intercuneiformes.