Objective To explore the indication,surgical procedure and the postoperative treatment of breast conserving modified radical mastectomy for early stage breast cancer .Methods The clinical data of 21 patients with early stage breast cancer underwent breast conserving modified radical mastectomy were analyzed retrospectively. Results All patient recovered uneventfully. All the external configuration of the breast were fine. There were no recurrence and no complications in this series. Conclusions The breast conserving modified radical mastectomy is recommended for the early stage breast cancer. The external configuration of breast is fine postoperatively, and patients have higher survival quality.But follow up is necessary in order to find and treat the recurrence of breast cancer.

Objective To explore the risk factors of sepsis complicated with hepatic insufficiency in elder patients.Methods With retrospective case-control study method,according to whether or not complicated with hepatic insufficiency,a total of 384 elder sepsis patients were divided into case group (91 patients) and control group(293 patients),then single factor analysis and multiple factors Logistic regression methods were used to screen the risk factors.Results Single factor analysis identified 6 kinds of significant variables,including age(P =0.000),history of alcohol(P =0.006),chronic diseases(P =0.001),arterial blood lactate level (P =0.035),mechanical ventilation (P =0.009) and acute physiology and chronic health evaluation Ⅲ score (APACHE-Ⅲ) scores(P =0.004).Multiple factors Logistic regression analysis showed that age,history of alcohol,chronic diseases,arterial blood lactate level,mechanical ventilation,APACHE-Ⅲ scores were correlated with sepsis complicated hepatic insuffciency in elder patients (P ＜ 0.01 or ＜ 0.05).Conclusion The risk factors which closely relate to sepsis complicated with hepatic insufficiency in elder patients are age,history of alcohol,chronic diseases,arterial blood lactate level,mechanical ventilation,APACHE-Ⅲ scores.

The benefit achieved by concurrent chemoradiotherapy (CCR) and sequential chemoradiotherapy (SCR) vs radiotherapy (RT) alone for patients with stage II-IVa nasopharyngeal carcinoma (NPC) was compared. A total of 113 patients with stage II-IV a NPC were allotted into CCR group (n=38), SCR group (n=36) and RT alone group (n=39). All patients were irradiated with the same RT technique to ≥66 Gy at 2 Gy per fraction, conventional 5 fractions/week in all groups. The CCR group received concurrent chemotherapy of weekly cisplatin for 7 weeks, and the SCR group received neoadjuvant and (or) adjuvant chemotherapy. The results showed that the 3- and 5-year overall survival rate was significantly higher in CCR group than in RT alone group (92.16% vs 61.54%, 81.58% vs 51.28%, P<0.005). The median survival time was significantly longer in CCR group than in RT alone group (67.8 months vs 52.7 months, P<0.005). It was concluded that CCR could significantly improve overall survival rate, progression-free survival rate, and median survival time when compared with RT alone.

The inhibitory effects of Endostar in combination with radiotherapy in BALB/c nude mice model of human CNE2 nasopharyngeal carcinoma and the mechanism were investigated. In nude mice model of CNE2 nasopharyngeal carcinoma, the inhibitory rate and the sensitizing enhancement ratio (E/O) were calculated according to the tumor volumes in different groups. The expression of microvascular density (MVD) in tumor tissues was examined by using immunohistochemistry staining. The transcription of VEGF gene was detected by using RT-PCR. The inhibitory rate in Endostar+ radiotherapy group was higher than in other groups. In Endostar+radiotherapy group, the tumor volume was significantly decreased and the E/O ratio was 2.335, suggesting that Endostar could be a radiosensitizer. The expression of MVD of tumor tissues in Endostar+radiotherapy group was reduced significantly. The expression of the MVD in treatment groups was significantly different from that in control group (P<0.05). Compared to other groups, VEGF mRNA expression in Endostar+radiotherapy group was decreased remarkably. Endostar in combination with radiotherapy significantly inhibited the growth of CNE2 tumor. The combination therapy decreased the expression of VEGF, and inhibited tumor angiogenesis and proliferation. When combined with radiotherapy, Endostar acted as a radiosensitizer.

BACKGROUND:Our previous studies confirmed that NGF-PEG-PLGA-NPs has good sustained release effect and biological activity in vitro, and can induce the differentiation of PC12 cel s into neuron-like cel s.
OBJECTIVE:To investigate the feasibility of neuronal differentiation of neural stem cel s from septal area of fetal brain induced by NGF-PEG-PLGA-NPs and its influence on PI3K/Akt signaling pathway.
METHODS:According to optimization prescription, NGF-PEG-PLGA-NPs were prepared by multiple emulsion solvent diffusion method. Neural stem cel s were induced to neuronal differentiation in six groups, including control group, NGF group, NGF-PEG-PLGA-NPs group, LY294002 group, LY294002+NGF group and LY294002+NGF-PEG-PLGA-NPs group. Neurons were identified by immunofluorescence, while phosphorylation levels of Akt in PI3K/Akt signaling pathway were detected by western blotting.
RESULTS AND CONCLUSION:The proportions ofβ-Tubulin III-positive neurons in control group, NGF group, NGF-PEG-PLGA-NPs group, LY294002 group, LY294002+NGF group and LY294002+NGF-PEG-PLGA-NPs group were (22.80±2.58)%, (35.80±3.98)%, (35.40±5.77)%, (26.60±3.87)%, (21.20±2.59)%and (25.80±7.22)%, respectively. There were no statistical differences in neuronal differentiation between NGF group and NGF-PEG-PLGA-NPs group (P>0.05), but the ratios of neural differentiation in the two groups were both higher than that in the other four groups (P<0.05). Western blotting results revealed that there were no statistical differences in Akt phosphorylation levels between NGF group and NGF-PEG-PLGA-NPs group (P>0.05), but the phosphorylation levels of Akt were both higher than other four groups (P<0.05). There were also no significant differences between LY294002+NGF and LY294002+NGF-PEG-PLGA-NPs groups and control group (P>0.05), but the phosphorylation levels of Akt were higher than LY294002 group (P<0.05). Results suggest that NGF-PEG-PLGA-NPs promoted neural differentiation of neural stem cel s. The role might be related to increasing phosphorylation levels of Akt in PI3K/Akt signaling pathway.

A real-time polymerase chain reaction ( PCR ) micro total analysis system (μ-TAS ) integrated nucleic acid extraction, PCR amplification and real-time-fluorescent PCR detection on a same microfluidic chip was prepared for the fully automated and on-chip analysis of nucleic acid. The proposed method had the advantage such as low sample consumption, fast analysis and simple operation and so on. Micromachining technology was used to fabricate the anodic molds of integrated nucleic acid extraction microfluidic chip. A polydimethylsiloxane (PDMS) substrate with 3D channels was manufactured by a combination of molds and an injection molding method. The glass substrate and the chip were bonded together using a plasma treatment. The μ-TAS included a microfluidic control device whose micro fluidic velocity ( 0-10 mL/min ) could be adjusted, a TEC platform which the precision of temperature control was 0. 1℃ and a CCD detection module. The DNA of human blood was extracted by using a silica gel membrane method on the microfluidic chip. The processes of DNA extraction and detection were preset in the μ-TAS. Human blood lysate ( 20 μL ) were driven to the extraction chamber and was then washed. The fluidic drive speed was 2 mL/min. DNA and PCR reagents were mixed and then were driven into the PCR chamber. The fluidic drive speed was 1 mL/min. The GAPDH gene in extracted genome DNA was amplified by PCR and detected. The amplified product was verified by melting analysis. The results of nucleic acid extraction method on the chip were compared to those obtained using a standard manual centrifuge extraction method. The amplification curves were obvious. Ct values of the chip method were 25 . 3 and 26 . 9 . The denaturation temperature of all the melting was 89 . 9 ℃. The results validated that the chip-based method and device realized the extraction of nucleic acid, amplification and detection automatically.

Objective To investigate the clinical effects and postoperative complications of arthrotomy and arthroscopy in repair of 170 menisci in 168 cases.Methods One hundred and sixty-eight patients with meniscus injury were repaired by arthrotomy or arthroscopy.They were 121 males and 47 females.There were 77 left knees and 91 right knees;117 medial menisci and 53 lateral ones.Their average age was 25.5?8.4 years old.Arthro- scopic repair methods included puncture and grinding,bio-absorbable meniscus arrow fixation,Outside-In suturing, Inside-Out suturing,Elite scuff instrument repairing,T-Fix fixation and FasT-Fix fixation techniques.The clinical results were assessed on the basis of symptoms,physical signs,Tegner scores and Lysholm scores of the cases. Postoperative complications were also investigated.Re-arthroscopic exploration was done for patients with obvious symptoms and physical signs.Results The average folluw-up time was 49.3?28.8 months.Their mean pre- operative Tegner score was 3.3?2.3,and their postoperative one 6.8?2.1 (P＜0.05).Their preoperative Lysholm score was 30.1?18.2,and their postoperative one 87.5?22.5 (P＜0.01).There were significant differences in Tegner and Lysholm scores before operation and after operation.Ninety-eight repaired menisci were rated as excellent(57.7%),57 as good (33.5%),10 as fair (5.9%),and five as poor (2.9%).The total ex- cellent and good result was 91.2%.Of the 19 patients with obvious symptoms and physical signs,re-arthroscopic exploration found no healing in five and partial healing in six.Postoperative complications included pain at the Outside-In suture nodes in three cases,referred pain at posterior articular capsule resulted from failed Outside-In meniscus anterior horn suturing in one case,and twinge at the meniscus arrow site in the posterior capsule in five cases.No serious lesion occurred at blood vessels or nerves.The postoperative complication incidence was 5.3%. Conclusion The eight methods of arthrotomy and arthroscopy to repair injured menisci investigated in our study can have a high successful rate and low perioperative and postoperative risk.

The benefit achieved by concurrent chemoradiotherapy (CCR) and sequential chemoradiotherapy (SCR) vs radiotherapy (RT) alone for patients with stage Ⅱ-Ⅳa nasopharyngeal carcinoma (NPC) was compared.A total of 113 patients with stage Ⅱ-Ⅳa NPC were allotted into CCR group (n=38),SCR group (n=36) and RT alone group (n=39).All patients were irradiated with the same RT technique to ≥66 Gy at 2 Gy per fraction,conventional 5 fractions/week in all groups.The CCR group received concurrent chemotherapy of weekly cisplatin for 7 weeks,and the SCR group received neoadjuvant and (or) adjuvant chemotherapy.The results showed that the 3- and 5-year overall survival rate was significantly higher in CCR group than in RT alone group (92.16％ vs 61.54％,81.58％ vs 51.28％,P＜0.005).The median survival time was significantly longer in CCR group than in RT alone group (67.8 months vs 52.7 months,P＜0.005).It was concluded that CCR could significantly improve overall survival rate,progression-free survival rate,and median survival time when compared with RT alone.

OBJECTIVETo investigate the synergistic effect of oleanolic acid (OA) and cyclosporine A (CsA) on the survival of renal allografts in rats.

METHODSRenal allograft transplantation was performed using BN rats as donors and LEW rats as recipients. Forty male LEW rats were randomized into 4 equal groups for interventions with DMSO-PBS (control), OA, CsA, or CsA+OA, starting from 1 day before transplantation. Serum creatinine levels were regularly examined, and the survival of rats were recorded. On day 5 after transplantation, CD4(+) and CD8(+) T-cell infiltration in the renal grafts was analyzed by immunohistochemistry; the concentrations of the proinflammatory cytokines (IL-1β, IFN-γ, IL-2, IL-4, and IL-17), anti-inflammatory cytokine IL-10 and chemokines (IP-10, MCP-1, MIP, and Mig) were analyzed with Luminex; the T-cell phenotypes (IFN-γ, IL-10, IL-4, and IL-17) were analyzed using ELISpot.

RESULTSIn OA+CsA group, renal allograft survival was markedly prolonged and CD4(+) and CD8(+) T cell infiltration in the graft significantly decreased as compared to other groups. A significant decrease in IL-2 was observed in OA group and OA+CsA group, especially the latter. Compared with the control group, all the 3 treated groups showed significantly decreased IL-1β, IP-10 and MCP-1, increased IL-10 levels, decreased percentages of T cells secreting IFN-γ, IL-4 and IL-17, and increased percentage of T cells secreting IL-10. The increments of serum IL-10 level and T cell percentage were more prominent in OA+CsA group than in the other two intervention groups.

CONCLUSIONSOA and CsA synergistically ameliorate renal graft rejection and inflammation and promote allograft survival and function in rats.

Animals ; Cyclosporine ; pharmacology ; Cytokines ; metabolism ; Drug Synergism ; Graft Survival ; Kidney ; drug effects ; Kidney Transplantation ; Male ; Oleanolic Acid ; pharmacology ; Rats ; Rats, Inbred BN ; Rats, Inbred Lew ; T-Lymphocytes ; cytology ; Transplantation, Homologous

The inhibitory effects of Endostar in combination with radiotherapy in BALB/c nude mice model of human CNE2 nasopharyngeal carcinoma and the mechanism were investigated.In nude mice model of CNE2 nasopharyngeal carcinoma,the inhibitory rate and the sensitizing enhancement ratio (E/O) were calculated according to the tumor volumes in different groups.The expression of microvascular density (MVD) in tumor tissues was examined by using immunohistochemistry staining.The transcription of VEGF gene was detected by using RT-PCR.The inhibitory rate in Endostar+radiotherapy group was higher than in other groups.In Endostar+radiotherapy group,the tumor volume was significantly decreased and the E/O ratio was 2.335,suggesting that Endostar could be a radiosensitizer.The expression of MVD of tumor tissues in Endostar+radiotherapy group was reduced significantly.The expression of the MVD in treatment groups was significantly different from that in control group (P＜0.05).Compared to other groups,VEGF mRNA expression in Endostar+radiotherapy group was decreased remarkably.Endostar in combination with radiotherapy significantly inhibited the growth of CNE2 tumor.The combination therapy decreased the expression of VEGF,and inhibited tumor angiogenesis and proliferation.When combined with radiotherapy,Endostar acted as a radiosensitizer.