Objective To detect the genome-wide genetic alterations in central neurocytoma,and to study the pathogensis of central neurocytoma. Methods Comparative genomic hybridization(CGH) analysis was performed in 10 central neurocytomas. Results Chromosomal imbalances were demonstrated in 6 cases.Overrepresentation of genetic material was detected in 4 cases on Chromosome 2p and 10q,and 3 cases on Chromosome 18q. Conclusion(Genetic abnormalities) on Chromosome 2p,10q and 18q may be associated with the pathogenesis of central neurocytoma.

OBJECTIVETo assess the feasibility and safety of robot-assisted laparoscopic radical prostatectomy (RLRP) in the treatment of prostate cancer.

METHODSUsing the da Vinci robot surgical system, we performed RLRP for 34 patients with localized prostate cancer and analyzed the intraoperative and follow-up data.

RESULTSThe procedures were performed successfully in all the patients, with the mean operation time of 198 min (range 135-340 min), average blood loss of 257 ml (range 50-700 ml), and 1 case of blood transfusion, but no postoperative complications. Three cases had positive surgical margins. Postoperative examination at 4 weeks showed PSA > 0.2 microg/L in 2 cases, suggestive of residual tumor, for which maximal androgen block therapy was administered. The other 32 patients were followed up for 3-10 (mean 7.5) months, during which the average level of serum tPSA remained < 0.2 microg/L. Urinary continence was found in 94% (32/34) and 97% (33/34) of the patients at 3 and 6 months, respectively, of whom 77% (26/34) and 88% (30/34) had no urinary leakage (0 pad per day).

CONCLUSIONRLRP, with its advantages of less perioperative blood loss, low rate of positive margin, and good urinary continence, is a safe and effective surgical option for the treatment of prostate cancer.

Aged ; Humans ; Laparoscopy ; methods ; Male ; Middle Aged ; Prostatectomy ; methods ; Prostatic Neoplasms ; surgery ; Retrospective Studies ; Robotics

Animals ; Anti-HIV Agents ; pharmacology ; HIV ; drug effects ; genetics ; physiology ; HIV Infections ; drug therapy ; immunology ; virology ; Humans ; Mucous Membrane ; immunology ; virology ; Virus Replication ; drug effects

Bronchoalveolar Lavage Fluid ; Humans ; Interleukin-1beta ; metabolism ; Macrophages, Alveolar ; cytology ; drug effects ; metabolism ; Silicon Dioxide ; adverse effects ; Silicosis ; metabolism

AIM: The goal of this study was to compare different methods for tumor antigen preparation, to observe the induction of tumor-specific cytotoxic T lymphocytes in rats by dendritic cells (DCs) pulsed with different tumor antigens. METHODS: The precursors of dendritic cells were isolated from bone marrow of rats, stimulated in vitro with recombinent rat granulocyte-macrophage colony-stimulating factor (rrGM-CSF) and interleukin-4 (rrIL-4). Then rat DCs were pulsed with C6 tumor cell antigens prepared with different methods: freeze-thaw, boiling or total protein extracted from ultrasonic crushed tumor cell. Subsequently primed DCs were cocultured with T lymphocytes isolated from spleen to induce CTL. Lymphocyte chemoattractant factor from DCs and cytokine IFN-? release were determined by ELISA, the cytotoxicity of CTL was assayed by JAM test. RESULTS: DCs pulsed with boiled tumor cell in vitro induced an enhanced ability of T-cell proliferation and cytotoxic T lymphocyte activity.CONCLUSION: Our results demonstrated that DCs primed with boiled tumor cell may represent a method for inducing immune responses against the entire repertoire of tumor antigens of malignancies.

Objective:To investigate the therapeutic efficacy of immunotherapy with dendritic cells-based vaccine against intracranial gliomas in rats.Methods:C6 glioma cells were injected into the brain of Wistar rat under stereotactic monitor to establish an animal model of glioma.The precursors of dendritic cells were isolated from bone marrow of rats,stimulated in vitro with recombinant rat granulocyte-macrophage colony-stimulating factor(rrGM-CSF)and interleukin-4(rrIL-4).Cultured cell populations were confirmed to be functional DCs.These DCs were then pulsed ex vivo with C6 tumor-lysates prepared by three cycles of freezing to -80℃ and thawing to 0℃ and subsequently injected subcutaneously into rats harboring intracranial C6 tumor.Rats from different group were treated with five weekly subcutaneous injections of either control media,unpulsed DCs,or DCs pulsed with tumor-lysates.The animals were followed for survival,the percentage of CD8 +T cells in peripheral blood and cytotoxicity assay in vitro were determined by FACS.The level of cytokine IFN-? and IL-10 were detected by ELISA.Results:The results indicated that C6 glioma model rats treated with tumor-lysate-pulsed DCs led to prolonged survival time,increased the percentage of CD8 + T lymphocyte in peripheral blood in comparing with control group.Cytotoxicity assays suggest that vaccination with these tumor-lysate-pulsed DCs can induce specific cytotoxic T lymphocytes against C6 tumor cells compared with control group.Furthermore,significantly enhanced IFN-? and reduced IL-10 (even undetectable)were observed in rats treated with pulsed-DCs.Conclusion:Data supported the therapeutic efficacy of systemic vaccination with DCs pulsed with tumor-lysates against intracranial glioma.

Objective To discuss the clinical value of the treatment of intercondylar fractures of the distal femur using open reduction and internal fi xation. Methods From July 1995 to December 2001, a total of 32 intercondylar fra ctures of the distal femur were treated with open reduction and internal fixatio n with a plate, 95? blade plate, a dynamic condylar screw (DCS) or a condyla r buttress plate. There were 13 cases of type-C1, 10 type-C2 and 9 type-C3 ac cording to the AO/ASIF standard. The outcomes of internal fixation were evaluate d according to preoperative and postoperative radiographs and postoperative func tions of the knee. Results 27 patients were followed-up from 8 months to 8 year s. The results were excellent in 14 cases, good in 9, poor in 4 according to San ders standard. Conclusion Open reduction and internal fixation is an ideal ch oice for intercondylar fractures of the distal femur.

Objective To statistically analyze data of blood transfusion from General Hospital of Chengdu Military Command,Mianyang field blood station,Deyang field blood station and other military medical institutions from May 12 to June 30,2008 so as to provided certain references for reasonable blood supportability in wartime and disaster.Methods A statistical analysis was done on data of blood collection and supply including self-taken blood and assembled blood,total amount of blood supply as well as the transfusion information of inpatients injured by earthquake in our hospital.Results The amount of self-taken blood was 5 111 U,the amount of assembled blood 3 380 U and the total amount of blood supply 1 0405.5 U.But blood transfusion was 4 090.6 U in 132 patients admitted into General Hospital of Chengdu Military Command.In addition,the crest-time of transfusion appeared at 96 hours after earthquake.Moreover,patients with fractures received the highest rate of blood transfusion and crush syndrome patients received the most blood transfusion and the highest per capita transfusion.Conclusions Blood supportability in earthquake is different from that in wartime and other disasters in aspects of transfusion time,blood types and blood transfusion volume.It is important to analyze the characteristics of transfusion in patients injured by earthquake for national strategy of blood supportability in disasters and for blood supportability in the wartime.

The diagnosis and treatment of prostate cancer are being improved due to the popularized screening of prostate specific antigen. Advanced prostate cancer, in spite of its response to androgen deprivation therapy, may finally develop into castration-resistant prostate cancer (CRPC) and shorten the overall survival of the patients. Many efforts have been made by worldwide researchers for new approaches to the management of CRPC, including new hormonal therapy, cytotoxic chemotherapy, immunotherapy, and bone metastasis-targeted therapy. This paper reviews the emerging agents undergoing clinical evaluation and drugs that have received approval for the treatment of CRPC in order to provide doctors and patients with more treatment options for CRPC and improve the overall survival rate and quality of life of the patients.
Androgen Antagonists ; Bone Neoplasms ; prevention & control ; Humans ; Immunotherapy ; Male ; Prostate-Specific Antigen ; blood ; Prostatic Neoplasms, Castration-Resistant ; therapy ; Quality of Life

Animals ; Cyclic GMP ; metabolism ; Ischemic Preconditioning, Myocardial ; Myocytes, Cardiac ; metabolism ; Nitric Oxide ; biosynthesis ; Rats ; Rats, Sprague-Dawley