Objective To compare the function and influence of magnetic resonance cholangiopancreatography (MRCP) and T tube cholangiography before pulling out T tube after biliary tract surgery. Methods Clinical data from 248 patients with T tube drainage after biliary tract surgery bewteen January 2009 and June 2011 were retrospectively analyzed.Among them, the T tube cholangiography group was 195 cases, and MRCP group was 53 cases.Analyzed the function, the toxic side reaction and effect of prolonged hospitalization time of T tube cholangiography group and MRCP group,and discussed the diagnostic effect of MRCP before pulling out T tube after biliary tract surgery.Results Two groups of patients got distinct and integrated image of the bile ducts all.Compared with T tube cholangiography group, all 53 cases patients of MRCP group got accurate of diagnosis results, no fake positive results and adverse reaction occurred, and no prolonged hospitalization. Conclusion MRCP can replace T tube cholangiography as a means of diagnosis before removal of T tube.

Objective To retrospectively analyze the data of patients with T3N0-1M0 nasopharyngeal carcinoma (NPC) who underwent radiotherapy (RT) alone or concurrent chemoradiotherapy (CCRT), and to investigate the relationship between therapeutic modality and prognosis. Methods From January 2004 to December 2004, 781 patients with biopsy-proven newly diagnosed non-metastatic NPC were analyzed in Sun Yat-Sen University Cancer Center, who had MRI data of nasopharynx and neck. With restaged based on the Chinese 2008 staging system, 82 cases of T3N0-1M0 patients who were treated by RT alone or CCRT were enrolled. They were divided into group A (46 cases, RT) and group B (36 cases, CCRT). Results The clinical data was comparable between the two groups. The 5-year overall survival rate (OS) was 93.5 % (group A) and 100 % (group B)(P =0.046), while the 5-year disease-free survival rate (DFS) was 85.2 % (group A) and 91.7 % (group B) (P =0.498). N-Staging was the factor affecting the DFS. Stratified analysis showed that the 5-year OS of T3N0M0 patients was 94.7 % (group A) and 100 % (group B) (P =0.432), those of T3N1M0 patients were 92.6 %(group A) and 100 %(group B) (P =0.066), while the 5-year DFS was 73.7 % (group A) and 89.3 % (group B) (P =0.244). Multifactor analysis showed that CCRT was not the independent factor affecting the OS(HR =0.019; 95 % CI, 0 to 21.793), and N-stage was not the independent factor affecting the DFS (HR = 0.203; 95 % CI, 0.135 to 1.231×104). Conclusion For T3N0M0, NPC patients, CCRT is not superior to RT alone. Whether CCRT can improve survival of T3N1M0 NPC patients needs further study.

Objective To assess the efficacy and feasibility of neoadjuvant therapy of TPF regimen including docetaxel (TAX), cisplatin (DDP) and 5-fluorouracil (5-Fu) combined with concurrent DDP and radiotherapy (RT) in patients with local advanced nasopharyngeal carcinoma (NPC). Methods From April 2008 to May 2009, 40 patients with newly diagnosed UICC stage Ⅲ orⅣ local advanced NPC were enrolled. Patients were randomly assigned to group A(DDP every 3 weeks) and group B(DDP every week). Two cycles of induction chemotherapy with TAX 60 mg/m2 dl, DDP 60 mg/m3 dl and 5-Fu 600 mg/m2 dl-5 were given on a 3-weekly cycle, followed by RT and chemotherapy(group A: DDP 80 mg/m2 every 3 weeks for 2 times; group B: DDP 30 mg/m2 weekly for 6 times). Two-dimension conformal RT technique with 68-72 Gy/(34-36) fractions for 7 weeks was administered to the nasopharynx and 60-66 Gy/(30-33) fractions for 6-6.5 weeks to the node-positive area. Results 38 patients (78 Cycles) were evaluable for efficacy and toxicity. One patient in each group was excluded due to toxicity. 17 (17/19) patients of group A finished 2 cycles of planed DDP chemotherapy, while only 10 (10/19) patients of group B completed 6 weeks of planed DDP chemotherapy, 4 completed 5 weeks, 4 completed 4 weeks and 1 completed 2 weeks. Response to neoadjuvant TPF was as follows: 4 patients (10.5 %) achieved complete response(CR), 27(71.1%) achieved partial response(PR) and 7 (18.4 %) achieved stable disease (SD), so the overall response (CR+PR) rate was 81.6 %. After RT, 32 patients (84.2 %) achieved CR, 5 (13.2 %) PR and 1 (2.6 %) SD, so the overall response rate was 97.4 %. Conclusion TPF induction chemotherapy followed by concurrent DDP and RT is an effective regimen in the treatment of advanced NPC. Concurrent DDP chemotherapy on a 3-weekly cycle is recommended. Further study should be made to investigate how to increase the dose intensity of chemotherapy.

AIM: To establish a new kinetic model of hydrating swelling and to make experiments of Radix et Rhizoma Rhei (Rhubarb) designed to validate this model. METHODS: The model was set up according to kinetics, residul water analysis was adopted to measure Rhubarb's sakage, and then obtained the fittin curve and kinetic parameters, its goodness of fit was evaluated by analysis of variance. RESULTS: Hydrating swelling model of the vegetable herb had a form of multivariate first order linear differential equation. Rhubarb comformed to three compartment model with ? = 0.3241min -1 , ? = 0.0185min -1 , ?=5.659?10 -3 min -1 , V ∞ T =1.726mL?g -1 , V ∞ 1 =1.008mL?g -1 , V ∞ 2 =0.2814mL?g -1 V ∞ 3 =0.4366mL?g -1 ,K= 0.2186min -1 ,K 12 =0.02426min -1 ,K 21 =0.07422min -1 ,K 13 =6.402?10 -3 min -3 ,K 31 =0.02481min -1 . CONCLUSION: The kinetic model of hydrating swelling has been in accordance with quantitative changes with multivariate first order linear mammary.

Objective To investigate the effect of preptin on proliferation and differentiation of human osteoblasts. Methods After human osteoblasts were incubated with 10-10, 10-9, 10-8 , 10-7 mol/L preptin for 24 h,the proliferation of osteoblasts was determined by[3H]thymidine incorporation and alkaline phosphatase (ALP)activity was assayed by spectrophotometric measurement. The phosphorylation levels of c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein kinase ( MAPK), extracellular signal-regulated kinase (ERK) 1/2 were assayed by Western blot. ERK inhibitor PD98059, p38MAPK inhibitor SB203580, and JNK inhibitor SP600125were used for investigating the signal pathway of preptin-stimulated osteoblast proliferation and differentiation.Results Preptin dose-dependently increased human proliferation of osteoblasts and ALP activity with the maximum effect at the concentration of l0-9 mol/L (both P<0.01 ). Preptin stimulated ERK phosphorylation in human osteoblasts, but not p38 MAPK and JNK phosphorylation. PD98059 blocked preptin-sitmulated human osteoblasts proliferation and ALP activity (both P<0.05 ), while SB203580 and SP600125 had no effect. Conclusions Preptin promotes the proliferation and differentiation of human osteoblasts through ERK pathway.

Objective To explore the effects of early hospital-family comprehensive rehabilitation on the development of pretenn infants. Methods A total of 256 premature infants were chosen and divided into an early intervention group (n = 148) and a control group (n =108). Besides being given the conventional mothering instruction , the early intervention group was given early assessment, regular visits and hospital-family comprehensive rehabilitation treatment. The control group was only given the conventional mothering instruction. The fine and gross motor growth quotients, adaptation, verbalisation and social behavior and general growth quotient of all the premature infants were assessed periodically using the infant neuropsychology growth scale. Results The growth quotient assessment indicators of the infants receiving the intervention were obviously better at the 6th, 12th, 18th and 24th month after birth, and the differences between the two groups were statistically significant. The incidence of cerebral palsy in the early intervention group was 0.71% (1/148), with only one cerebral palsy infant in the early intervention group who was at level Ⅲ of the gross motor function classification system ( GMFCS) , while the incidence of cerebral palsy in the control group was 5.1% (5/98) , with 5 cerebral palsy infants, one of whom was at GMFCS level Ⅲ and 4 of whom were at level Ⅳ. Conclusions Early systematic hospital-family comprehensive rehabilitation can improve the general growth of premature infants, decrease the incidence of cerebral palsy, and neurobehavior deficits.

Objective To evaluate the effects of Xuebijing injection on inflammatory mediators of patients with severe acute pancreatitis. Methods Using double blind method, 80 cases with severe acute pancreatitis were randomly divided into two groups, with 40 cases in each group. The control group was treated with conventional therapy such as: fasting, fluid replacement, acid inhibition and anti-infection, combined with the continuing injection with the growth hormone release inhibiting 6 mg, ulinastatin 200000u for 7 days. Based on the control group's treatment, the other group was added with Xuebijing injection 50 ml, twice a day for 7days. The plasma levels of prostaglandin Ⅰ2 (PGI2), thromboxane A2 (TXA2), tumor necrosis factor α (TNFα),interleukin-1,6,8 (IL-1,6,8) were compared before and after the treatment in each group and between two groups.Results Compared with the control group, Xuebijing injection group had marked effects on modulating the levels of inflammatory mediators. The levels of PGI2 and PGI2/TXA2 were increased significantly and the levels ofTXA2, TNF2, IL-1,6 and 8 were deceased(P＜0.05)sharply after the treatment. Conclusion Combined with conventional western medicine therapy, Xuebijing injection has the effects of inhibiting and controlling the release of inflammatory mediators on patients with severe acute pancreatitis.

Objective To compare the short-term therapeutic effect, adverse reaction and influence on immune function between chrono-chemotherapy and routine-chemotherapy with docetaxel +cisplatin(DP)combined with concurrent chemoradiotherapy with cisplatin(DDP)in locally advanced(Ⅲ,Ⅳa stage)nasopharyngeal carcinoma(NPC).Methods 70 cases of newly diagnosed locally advanced NPC were randomly divided into group A and group B,35 cases in each group.Two groups of patients were treated with two cycles of neoadjuvant chemotherapy with DP combined with concurrent chemoradiotherapy with DDP.Both nereoadjuvant chemotherapy and concurrent chemotherapy of patients in group A were administrated with chrono-chemotherapy.Both nereoadjuvant chemotherapy and concurrent chemotherapy of patients in group B were administrated with routine-chemotherapy.Therapeutic effect,adverse reactions and other indicators were observed in both groups.Results After 3 months,there was no sifnificant difference of short term total efficacy between two groups in nasopharyngeal primary tumor(35 cases vs.34 cases),cervical lymph node(32 cases vs.31 cases).The incidence of adverse reactions of marrow toxicity(WBC,Hb,PLT)in group A was lower than group B(P<0.05),the incidence of digestive tract(nausea and vomiting,diarrhea)in group A was lower than group B(P<0.05),while there was no significant difference in oral mucositis between two groups(P<0.05).The high creatinine incidence in group A was lower than group B(P<0.05).There was no significant difference in high blood urea nitrogen and high transaminase incidences between two groups.After treatment, the T lymphocytes ( CD3 +, CD4 +, CD8 +, CD4 +/CD8 +) had no change in group A,the T lymphocytes(CD3 +,CD4 +)in group B decreased significantly compared with pre-treatment(P<0.05),and were lower than group A(P<0.05).Conclusion Adverse reactions and the degree of decline in cellular immune function of chrono-chemotherapy are lower than routine-chemotherapy in locally advanced NPC.