OBJECTIVE: To put forward a method of construction of the safety evaluation platform related to formula-medicine dose of TCM because of the lack of the dose-effect relationship research and the insufficient of safety monitoring in Chinese medicine. METHODS: Under the guidance of Chinese medicine theory, an ADR (adverse drug reaction)/ADE (adverse drug event) monitoring scale with TCM characteristics was developed based on patients reporting, thus to promote positive and prospective evaluation researches related to formula-medicine dose. On the basis of the ADR/ADE data base, the safety monitoring module will be formed then. RESULTS AND CONCLUSION: The safety evaluation platform related to formula-medicine dose is supposed to be structured.

OBJECTIVE: To investigate the preventive effect of Bushen Huoxue Recipe (BSHXR), a compound traditional Chinese herbal medicine, on autoimmune premature ovarian failure (POF) in mice. METHODS: Ovarian antigen was prepared with the ovarian tissue of female BALB/c mice. A mouse model of POF was established by immunization injection of the ovarian antigen of isotype female mice on multiple subcutaneous sites and two posterior soles. The POF mice were treated with BSHXR after the first and third immunization. The levels of follicle-stimulating hormone (FSH), luteinizing hormone (LH) and estradiol (E2) in peripheral blood were detected by enzyme linked immunosorbent assay. RESULTS: Lymphocyte infiltration was appeared in ovarian stroma of POF mice. The levels of FSH and LH were evaluated and the E(2) level was decreased significantly (P<0.05). BSHXR could reduce the increased levels of FSH and LH, increase the level of E(2) and the number of growing and mature follicles. The efficacy of early treatment was better than that of late treatment. CONCLUSION: BSHXR can recover ovarian function in POF mice mainly by regulating the indiscriminate hormone level, and BSHXR has preventive effect on autoimmune POF in mice.

ObjectiveThe present study was designed evaluate the aspirin effectiveness in the inhibition of platelet aggregation in patients after OPCAB.Methods290 patients were recruited.145 patients underwent first time OPCAB (surgery group).Arachidonic acid induced platelet aggregation and urine 11-dehydro thromboxane B2 (11-dehydroTxB2) were measured before operation and on aspirin re-administered days 1,4, 10, and 6 months after surgery.The same tests were also detected in 145 patients from the cardiology department (non-surgery group) received medicine therapy as controls.Results Ninety-nine patients were defined as aspirin sensitive after OPCAB (AS Group).Postoperative aspirin resistance was identified in 46 (32％) patients at the first day after aspirin treatment started (AR Group).19 (13％) and 5 (3％) patients remained as AR at day 4 and 10 after aspirin re-administration, respectively.Patients in the AR group had higher 11-dehydroTxB2 levels than those in the AS group (P = 0.049).Six months follow-up showed ARA-induced platelet aggregation was (11.5 ± 3.4) ％.Urine level of 11-dehydroTxB2 was (50.3 ± 15.4) ng/L.No resistance was found.All cardiologic patients were identified as aspirin sensitive, the change of platelet aggregation and 11-dehydroTxB2 were similar as those in the AS group.Weight ＞75 kg and postoperative drainage ＞500 ml were risk factors of aspirin resistance after OPCAB.ConclusionAnti-platelet effect of aspirin was reduced during the early postoperative period in certain patients undergoing OPCAB.In case of resistance,antiplatelet treatment strategy should be intensified or modified.

Objective To investigate expression of polysaccharides biosynthetic genes in biofilm formation in Pseudomonas aeruginosa PAO1. Methods Real-time RT-PCR was used to quantify mRNA to analyze their mRNA level during planktonic growth and biofilm cells. Results Analysis of the relative ex-pression levels indicated that the level of transcripts of planktonic pslA, algD, pelA was significantly lower than that of biofilms sessile growth in all other form bacteria. The levels of transcripts of pslA, algD, pelA were the highest at the first day of biofilms development. Conclusion From the observations in the present study, transcripts of the pslA, algD, pelA involved biofilm development.

Objective To summarize the clinical outcomes after the optimization of nutrition support in elderly patients after hepatic carcinoma surgery.Methods The clinical data of 52 elderly patients with hepatic carcinoma in Beijing Hospital were collected and analyzed from 2007 to 2009(research group).Nutritional Risk Screening(NRS)2002 was applied for the nutrition risk screening at admission.NRS 2002 score≥3 was regarded as at nutritional risk.Enteral nutrition(EN)or EN combined with parentoral nutrition(EN+PN)supports were provided during the peri-operative stage.The control group included 30 patients from 2005-2007 under the same conditions with rescareh group but only received PN supports pest-operatively.Nutritional parameters,complications,lengh of hospital stay,and healthcare expenditures were analyzed.Results Body weight and plasma albumin were no significantly different in two groups(P>0.05)by the 7th post-operative day.The incidence of infection-relatod complications and length of hospital stay were significantly lower in research group than in control group (P<0.05).Conclusions Nutrition risk screening should be performed for the elderly patients with hepatic carcinoma after admission.Optimization of peri-operative nutrition support can reduce complications and improve the clinical outcomes.

Objective To study the effects of parecoxib sodium combined with continuous femoral nerve block on the balance of Th1/Th2 in elderly patients after total knee arthroplasty. Methods Fifty elderly patients,33 males and 1 7 females,aged 65 to 80 years,with ASA Ⅰ or Ⅱtreated with total knee arthroplasty were randomly divided into two groups (n =25 each):parecoxib sodium combined with continuous femoral nerve block group (group A)and parecoxib sodium com-bined with intravenous analgesia group (group B).Quick induce laryngeal mask anesthesia and intra-venous parecoxib sodium 40 mg at 30 min before skin incision were adopted in both groups.After the first 8 h,parecoxib sodium of 40 mg was intravenously injected again.The patients in group A re-ceived femoral nerve puncture and continuous electronic analgesia pump.The patients in group B re-ceived postoperative intravenous electronic analgesia pump.Visual analogue score(VAS)during rest and movement at 6,12,24,36,48 h after operation,side effects in two groups were recorded,venous blood samples were taken before anesthesia (T0 ),at the end of operation (T1 ),and 24 h(T2 ),48 h (T3 ),72 h (T4 )after operation for determination of plasma IFN-γ,IL-10 and cortisol (Cor). Results The values of VAS were significantly lower in group A compared with group B in rest at 6, 12 h after operation,the values of VAS were significantly lower in group A compared with group B in moving at every time points after surgery (P <0.05 ).The plasma Cor concentrations were signifi-cantly increased at T1-T3 compared with baseline value at T0 in two groups(P <0.05 ).The plasma Cor concentrations in group A were significantly decreased compared with group B at T1-T3 (P <0.05).The plasma IFN-γconcentrations were significantly lower at T2 and T3 compared with baseline value at T0 in group A,the plasma IFN-γ concentrations were significantly lower at T2-T4 compared with baseline value at T0 in group B (P <0.05),the plasma IFN-γ concentrations were significantly increased in group A compared with group B at T2-T4 (P <0.05 ).The plasma IL-10 concentrations were significantly increased compared with baseline value at T1-T4 in two groups (P < 0.05 ),the plasma IL-10 concentrations were significantly decreased in group A compared with group B at T1-T4 (P <0.05).Compared with group B,the incidence of postoperative nausea,vomiting and pruritus in group A was lowered significantly (P <0.05).Conclusion Parecoxib sodium combined with continu-ous femoral nerve block on postoperative pain in elderly patients after total knee arthroplasty can a-chieve good effect of postoperative analgesia and fewer complications, lower cortisol secretion, slowing down the decrease of IFN-γ secretion and the increase of IL-10 secretion.This method could effectively protect the immune function of patients undergoing arthroplasty.

Objective To investigate the reasonable time limit for stopping the aspirin treatment in preoperative pa-tients with general surgery and the effects on platelet function in postoperative patients with recovering the therapy of aspirin. Methods A total of 121 patients undergoing elective general surgery were divided into stopping aspirin treatment 5 d group (n=59) and stopping aspirin treatment 7 d group (n=62). Fifty healthy volunteers were used as the control group. The arachi-donic acid (AA)-induced platelet aggregation test was used to detect the platelet agglutination rate in all groups. Aspirin was reused 24~48 h after surgery. The level of urinary 11-dehydro-thromboxane B2 (11-DH-TXB2) was assayed by ELISA 7 and 10 d after retreatment. Results The levels of the PAgT (5 min, 8 min and 10 min) were decreased significantly in pa-tients with stopping aspirin treatment 5 d group compared with those of patients with stopping aspirin treatment 7 d group and control group (P<0.05). There was no significant difference in the level of PAgT between patients with stopping aspirin treatment 7 d group and control group. The platelet aggregation showed two different characteristic curves after stopping aspi-rin treatment for 5 d. And the normal curve of platelet aggregation was found after stopping aspirin treatment for 7 d. The lev-els of PAgT and urinary 11-DH-TXB2 were significantly lower in patient recovered the aspirin treatment for 7 d and 10 d than that of control, and which was significantly higher in 7 d group than that of 10 d group (P>0.05). Conclusion The platelet aggregative function returned to normal level in patients with 7-d preoperative stopping aspirin. The laboratory moni-toring of aspirin therapy should be more than 7 d after postoperative reusing aspirin.

Objective:To assess aspirin efficacy in the early postoperative period following off-pump coronary artery bypass(OPCAB)surgery.Methods:Sixty patients undergoing OPCAB surgery were enrolled in the study.Previous aspirin treatment Was terminated 5-7 days before OPCAB and continued to take at the day with food intake after surgery.The functional and biochemical responses to aspirin were evaluated by arachidonie acid (ARA)-induced platelet aggregation.Samples were collected before and on days 1,4 and 10 after aspirin intake(100 mg/d).Results:There were 17 patients(28.3%),9 patients (15%)and 2 patients(3.3%)with aspirin resistance on day 1,4 and 10 of aspirin intake.The overall levels of platelet aggregation(%)were 63(52,70),13(11,22),12(10,14),and 12(11,14)before the surgery and on day 1,4 and 10 of aspirin intake.The level was stable from the 4th day after aspirin intake.It was found that aspirin resistance was not an independent risk factor for the operation.Conclusion:Aspirin did not sufficiently inhibit platelet aggregation at the early stage after OPCAB.It is important to keep potential anti-coagulation therapy in the early postoperative period.

To realize the accurate positioning and quantitative volume measurement of tumor in head and neck tumor CT images, we proposed a level set method based on augmented gradient. With the introduction of gradient information in the edge indicator function, our proposed level set model is adaptive to different intensity variation, and achieves accurate tumor segmentation. The segmentation result has been used to calculate tumor volume. In large volume tumor segmentation, the proposed level set method can reduce manual intervention and enhance the segmentation accuracy. Tumor volume calculation results are close to the gold standard. From the experiment results, the augmented gradient based level set method has achieved accurate head and neck tumor segmentation. It can provide useful information to computer aided diagnosis.
Diagnosis, Computer-Assisted ; Head and Neck Neoplasms ; pathology ; Humans ; Tomography, X-Ray Computed ; Tumor Burden

Objective To evaluate the hemostatic effect of hemocoagulase agkistrodon in elderly patients undergoing laparoscopic cholecystectomy and to analyze its influence on coagulation function and its safety.Methods A prospective,randomized,double blind and controlled research was conducted in 60 patients aged over 65 years.Patients were divided into 2 groups:the study group and the control group (n =30 each group).Patients in the study group were injected with 2 U hemocoagulase agkistrodon intravenously 20 minutes before operation and with 1 U hemocoagulase agkistrodon 4 hours after operation.Patients in the control group were injected with physiological saline instead of hemocoagulase agkistrodon.The intraoperative intraperitoneal hemorrhage and intraperitoneal drainage at 24 hours after operation were recorded.The changes in bemagglutination and safety were observed.Results 59 cases were finished in this study and 1 case was eliminated.The volume of intraoperative hemorrhage was less in the study group than in the control group [(53.6±68.1) g vs.(88.1±79.7) g,t =2.08,P=0.038].There was no significant difference in the volume of intraperitoneal drainage at 24 hours after operation between the study group and the control group [(71.7±113.3) g vs.(89.0±104.7) g,t =1.69,P=0.075].The hemoagglutinationindexes were similar between two groups and no thrombosis occurred.There was no significant difference in the time of hospital stay between the study group and the control group [(5.2±1.4) days vs.(5.3±1.7) days,t=0.52,P=0.61].No adverse event was reported.Conclusions Hemocoagulase agkistrodon has relatively good hemostatic effects and safety for the elderly patients undergoing laparoscopic cholecystectomy.