Objective To establish osteosarcoma vaccine by the LM9 osteosarcoma derived from C3h mice hybridized with activated B lymphocytes and study its biological behavior and the antitumor efficacy. Methods The LM9 osteosarcoma derived from C3h mice was fused with LPS activated B lymphocytes by using 50%PEG. The fused cells was selected by HAT medium and cultured in vitro, and the biocharacter and efficacy of the fusion vaccine were investigated. Results In contrast to LM8, the fused cells grew significantly slowly in vitro. All the mice under the protection of fused vaccine survived without tumor (8/8), while all the mice in the control group succumbed to the tumor with no survival (8/8), 75%of the mice inoculated subcutaneously with cell fusion vaccine survived without tumor burden after implantation of LM8 cells subcutaneously. The mice in the control group developed tumors and died within 45 days without any exception. Conclusion It is possible that the LM9 osteosarcoma biology characteristics change after fused with LPS activated B lymphocytes. Cell fusion osteosarcoma vaccine could produce prophylactic and therapeutic effects in mice.

Objective To investigate the effect of Glutamine (Gln) on heat stress-induced dysfunction of intestinal epithelial barrier. Methods Human intestinal epithelial Caco-2 cells were pre-incubated with Gln for 24h and then exposed to heat 43℃ for 1h. Cell counting kit-8 (CCK-8) was used to detect the cellular proliferation with various concentrations of Gln and choose an optimum concentration for subsequent experiments. The barrier integrity was measured by transepithelial electrical resistance (TEER) and horseradish peroxidase (HRP) permeability. Levels of tight junction protein occludin and ZO-1 were analyzed by Western blotting. Cytoskeleton using Coomassie blue staining was observed by microscopy. Results At 0.7mmol/L concentration, Gln showed the most effective cell proliferation compared with other concentration groups (P<0.05). Therefore, 0.7mmol/L Gln was used as effective concentration in following experiments. Gln attenuated the TEER decrease and impairment of intestinal permeability induced by heat exposure compared with 43℃ group (P<0.01). The expressions of occludin and ZO-1 were significantly elevated by pretreatment with Gln. The distortion of cytoskeleton was also effectively prevented. Conclusion 0.7mmol/L Gln is potentially beneficial for protecting against heat stress-induced permeability dysfunction and epithelial barrier damage.

Objective: To observe the influence of electroacupuncture with different frequencies on rats swimming endurance and sift out the optimal frequency parameter.Methods: Wistar rats were randomly allocated to control group, non-acupoint group and electroacupuncture with low frequency group (EA with 2 Hz group), electroacupuncture with medium frequency group (EA with 15 Hz group), and electroacupuncture with high frequency group (EA with 100 Hz group), acupoints Zusanli (ST 36) and Taichong (LR 3) were punctured and rats load swimming time was used as an index, and the change of swimming endurance time before and after acupuncture was observed. Results: After electro-acupuncture, swimming time was increased in 15 Hz and 100 Hz groups respectively, with the significant differences between before and after acupuncture (P＜0.05). There was also a significant difference in the percentage of increase in swimming time between 15 Hz group and other groups (P＜0.05).Conclusion: It is suggested that electroacupuncture at acupoints Zusanli (ST 36) and Taichong (LR 3) with a frequency of 15 Hz could enhance rats's swimming endurance, and 15 Hz might be an optimal frequency parameter during the electrical stimulation.

OBJECTIVE: To investigate the significance and relationship between the expression of FOXC1 and clinicopathological features, and to explore its correlation with E-cadherin. METHOD: Immunohistochemical SP method was used to detected the expression of FOXC1 in nasopharyngeal carcinoma tissues and nasopharyngitis tissues. RESULT: (1) Immunoreaction to FOXC1 was mainly located in nucleus of nasopharyngeal carcinoma cells. The positive expression rate of FOXC1 in nasopharyngeal carcinoma tissues was 85.3% (81/95), which was significantly higher than that in nasopharyngitis tissues (59.4%) (P < 0.05). (2) The expression of FOXC1 was not related to patients' age and gender, clinical stage of cancer and lymph node metastasis (P > 0.05). (3) There was a correlation between the expression of FOXC1 and down-regulated expression of E-cadherin in nasopharyngeal carcinoma tissues (P < 0.05). CONCLUSION FOXC1 may play an important role in generation and progression of nasopharyngeal carcinoma, there may be a correlation between the expression of FOXC1 and down-regulated expression of E-cadherin, also FOXC1 may play an important role in the process of EMT in nasopharyngeal carcinoma by regulating E-cadherin.
Adolescent ; Adult ; Aged ; Antigens, CD ; Cadherins ; metabolism ; Carcinoma ; Female ; Forkhead Transcription Factors ; metabolism ; Humans ; Male ; Middle Aged ; Nasopharyngeal Carcinoma ; Nasopharyngeal Neoplasms ; metabolism ; pathology ; Nasopharyngitis ; metabolism ; Young Adult

Objective To discuss the technique of laparoscopie radical cystectomy with Studer orthotopic ileal neobladder. Methods Eight men with bladder cancer who were indicated for radical surgery underwent laparoscopic cysteetomy with Studer orthotopic ileal neobladder. The ages were be-tween 51 and 69 with the mean age was 57 years. Seven cases were transitional cell carcinoma and 1 case was adenocarcinoma. A 5-port approach was employed. The first step was the bilateral pevic lymphadenectomiy including obturator lymph nodes, internal and external iliac lymph nodes. Then ventral surface of the bladder was mobilized and the bilateral endopelvic fascia was incised. Next step included the stich of dorsal vein complex and dissection of both the vas deferens and seminal vesicles. Denonvillier's fascia was incised to develop the plane between the rectum and the prostate. The urethra located in the prostatic apex was divided and transected thereby completely separating the specimen. Then the specimen was placed in a packet. Finally, a 6-8 cm lower median abdominal incision was performed, through which the specimen was extracted. Construction of the Studer pouch. A portion of terminal ileum about 45cm long was isolated approximately 20cm proximal to the ileocecal valve. The ends of the isolated ileal segment were closed to restore the bowel continuity. The distal 40 cm segment of ileum was placed in a U shape and opened along the antimesenteric border. The two medial borders were then oversewn and the bottom was folded over to form a neobladder. The ureters were anastomosed to the nonineised 5 cm portion of ileum. Finally, the neobladder was put into the abdomi-nal cavity and the anastomosis between the neck of the neobladder and the end of the remaining ure-theral was performed with interrupted suture. Results All the procedures were successful. The time of the operation was 6-8 h with the mean estimated blood loss 420(200-800)ml. Complication included 1 case of right ureteral indigitation in neobladder. The postoperative histopathology revealed 7 cases of pT2 and 1 cases of pT3. No positive margin was found. The follow-up (3 - 12 months) showed no recurrence. Conclusions The technique of laparoseopic radical cystectomy is feasible with the advantages of smaller incision and less blood loss. Studer orthotopic ileal neobladder has the ad-vantages of simple skill, antireflux, better postoperative urination.

Objective To investigate the relationship between coagulation function and the tumor size, clinical stage and metastasis status in renal cell carcinoma (RCC) patients. Methods A total of 290 RCC patients from 2004 to 2009 were included in present study. There were 181 male patients and 109 female patients. The average ages was (56.3± 13. 5) years. There were 252 cases of clear cell carcinoma, 19 cases of papillary carcinoma, 5 cases of chromophobe cell carcinoma, 3 cases of cystic RCC, and 11 cases of other types. TNM classification: stage Ⅰ 202 patients, stage Ⅱ32 patients , stage Ⅲ 32 cases, stage Ⅳ 24 cases. There were N0 264 patients, N1 11 patients and N2 15 cases. There were M0 273 cases, M1 17 cases. One hundred and eighty-six cases of benign renal tumors were set as the control group. Fibrinogen (Fib), prothrombin time (PT), activated partial thromboplastin time (APTT) and international normalized ratio (INR) were detected. Results The preoperative serum Fib of RCC patients was (39. 6±15.6) g/L, the control group was (32. 8±8. 2)g/L. There was significant difference between them (P<0. 05). The values of preoperative APTT,INR, and PT were (31.7±5.2)s, (1.0±0. 1), (11.2±1.3)s in RCC group and (32. 4±4.2)s,(1.0±0. 1), (11.1±1.3)s in the control group. There were no significant differences between them (P＜0.05). The values of Fib in stage Ⅰa, Ⅰb, Ⅱ, Ⅲ, Ⅳ groups were (32. 6±6. 6), (36. 1±8. 7),(48.8±21.6), (49.9± 17.8) and (59.7± 19.2)g/L, respectively. There was no significant difference between stage Ⅰ, and the control group. But the other stages showed significant difference with the control group (P<0.01). Hyperfibrinogenemia (Fib>44.0 g/L) in the RCC group accounted for 74 cases (25.5%). If the value of Fib ≤44. 0 g/L, 92.1% of patients can be excluded from the probability of metastasis. Conclusions Preoperative plasma Fib levels could be elevated in RCC patients with distant metastasis or lymph node metastasis. Increased preoperative plasma Fib levels, especially hyperfibrinogenemia may be a predictor of metastasis.

This paper introduces the design and realization of the FIR dynamic filter by EP1C6Q240 of Cyclone of Altera Corporation, showing the hardware diagram of the filter and the process of calculating parameters, and compares and analyzes the B mode ultrasound images created by using the dynamic filter and by using the constant filter.
Algorithms ; Equipment Design ; Image Processing, Computer-Assisted ; instrumentation ; methods ; Software Design ; Ultrasonography ; instrumentation

OBJECTIVETo compare the effect and impact of holmium laser enucleation of the prostate (HoLEP) and 120-W thulium: YAG vapoenucleation of the prostate (ThuVEP) on erectile function in the treatment of benign prostatic hyperplasia (BPH).

METHODSWe retrospectively analyzed 93 cases of symptomatic BPH treated by HoLEP or 120 W ThuVEP. We made comparisons between the two groups of patients in the baseline and postoperative clinical and surgical indexes as well as their IPSS, quality of life (QOL), maximum flow rate (Qmax), postvoid residual urine volume (PVR), and IIEF-EF scores before surgery and during the 12-month follow-up.

RESULTSThuVEP, in comparison with HoLEP, achieved a significantly shorter operation time ([57.6 +/- 12. 8] vs. [70.4 +/- 21.8] min, P = 0.001) and a higher laser efficiency ([0.71 +/- 0.18] vs. [0.62 +/- 0.19] g/min, P = 0. 021). At 1, 6, or 12 months of follow-up, no significant differences were observed in IPSS, OOL, Omax, and PVR between the two groups (P > 0.05). Both the HoLEP and ThuVEP groups showed low incidences of complications and remarkably improved IIEF-EF scores at 12 months postoperatively, but with no significant differences (both P > 0.05). However, in those with relatively normal erectile functions before operation, the mean IIEF-EF score was reduced from 22.8 +/- 2.2 preoperatively to 21.0 +/- 2.7 after HoLEP, (P = 0.036).

CONCLUSIONBoth HoLEP and 120W ThuVEP are effective and safe in the treatment of BPH. Compared with HoLEP, 120 W ThuVEP has even a higher laser efficiency. However, neither can significantly improve erectile function, and HoLEP may have a short-term negative impact on the relatively normal erectile function of the patient.

Aged ; Holmium ; Humans ; Laser Therapy ; adverse effects ; methods ; Lasers, Solid-State ; therapeutic use ; Male ; Middle Aged ; Penile Erection ; Prostatectomy ; adverse effects ; methods ; Prostatic Hyperplasia ; surgery ; Quality of Life ; Retrospective Studies ; Thulium ; Transurethral Resection of Prostate ; Treatment Outcome ; Urine

OBJECTIVETo develop a new technique for assessing the risk of birth defects, which are a major cause of infant mortality and disability in many parts of the world.

METHODSThe region of interest in this study was Heshun County, the county in China with the highest rate of neural tube defects (NTDs). A hybrid particle swarm optimization/ant colony optimization (PSO/ACO) algorithm was used to quantify the probability of NTDs occurring at villages with no births. The hybrid PSO/ACO algorithm is a form of artificial intelligence adapted for hierarchical classification. It is a powerful technique for modeling complex problems involving impacts of causes.

RESULTSThe algorithm was easy to apply, with the accuracy of the results being 69.5%±7.02% at the 95% confidence level.

CONCLUSIONThe proposed method is simple to apply, has acceptable fault tolerance, and greatly enhances the accuracy of calculations.

Algorithms ; Artificial Intelligence ; China ; epidemiology ; Environmental Exposure ; adverse effects ; Humans ; Infant, Newborn ; Models, Biological ; Neural Tube Defects ; epidemiology ; Risk Factors

Phytochemical investigation on the EtOH extract from the aerial part of Callicarpa kwangtungensis led to the isolation and characterization of 10 caffeoyl phenylethanoid glycosides, 2'-acetylacteoside (1), tubuloside E (2), acteoside (3), tubuloside B (4), isoacteoside (5), alyssonoside (6), 2'-acetylforsythoside B (7), brandioside (8), forsythoside B (9), and poliumoside (10). Compound 4 was isolated from the plants of Verbenaceae,and 6 was obtained from the Callicarpa genus, for the first time, while compounds 1, 2, 5 and 7 were firstly reported from the plant.
Caffeic Acids ; chemistry ; isolation & purification ; Catechols ; chemistry ; isolation & purification ; Chromatography, High Pressure Liquid ; Ethanol ; chemistry ; Glucosides ; chemistry ; isolation & purification ; Glycosides ; chemistry ; isolation & purification ; Phenols ; chemistry ; isolation & purification ; Verbenaceae ; chemistry