OBJECTIVE: To determine the content of caffeic acid in Qingrejiedu oral solution(solution for heat-clearing and detoxicating) by HPLC.METHODS: The determination of sample was performed on Hypersil BDS C18(250 mm?4.6 mm,5 ?m) with methanol-sodium potassiumphosphate solution(22∶78) as mobile phase.The detective wavelength was set at 323 nm.RESULTS:The linear range of Caffeic acid was 0.001 57～0.025 12 mg? mL-1(r=0.999 8) and the average recovery was 100.3%(RSD=1.73%,n=6).CONCLUSION: This method is rapid,simple,accurate and reproducible with high recovery rate,and it can be used for the quality control of Qingrejiedu oral solution.

Objective:To study TGC on tumor apopotosis and to apply the experimenting basis of TGC's developing and utilizing.Methods:The flow cytometer(FCM) was used for determination apoptosis.The protein expression of Bcl-2 and the mRNA expression of c-myc were evaluated by immunohistochemistry and in situ hybridization.Apoptosis small body were observed by EU.Results:The TGC group appear the Ap apex,the number of cell of G0-G1 period reduce obviously,the cells of S period increase obviously.Bcl-2 and the c-myc mRNA expression levels were decreased in TGC group.The structure of inner membrane was intacted with EU.Chromatin gathered side of cell,the nucleus turns into the nucleus band and nucleus project,there were many cells of the apoptosis and meniscus or the garland shape(the apoptosis corpuscle formatiol) in TGC group.Conclusion:The total glucosides of radix paeoniae induces the tumor cell apoptosising,its mechanism maybe closely related with adjusting expression levels of the Bcl-2 and the c-myc mRNA.

Objective To assess the value of joint detection of serum cysteine proteinase inhibitors C (sCys-C),urinary kidney injury molecule 1 (uKIM-1),urinary neutrophil gelatinase-associated lipocalin(uNGAL) and urinary interleukin 18 (uIL-18) for early diagnosis of acute kidney injury (AKI) in critically ill patients.Methods A total of 256 adult patients who stayed Intensive Care Unit for 24 hours in the Third People's Hospital of Liaocheng between Aug 2011 and Dec 2012 were enrolled.According to Kidney Injury Net(AKIN) work,the patients were divided into non-AKI group and AKI group (including state 1,2 and 3).The concentrations of urine NGAL,KIM-1,IL-18 and serum sCys-C were measured.The diagnosis value of four biomarkers joint detection and single detection for AKI were analyzed with the receiver operating characteristic (ROC) curve and the area under curve (AUC).Results (1) The levels of uNGAL,uKIM-1,uIL-18 and sCys-C were higher in patients with AKI than the patients with no AKI (P ＜ 0.01).(2) The area under curves of uNGAL,uKIM-1,uIL-18,sCys-C and joint detection were 0.742,0.871,0.803,0.703,0.925 respectively.(3) The sensitivity and specificity of parallel tests and serial tests of four biomarkers were 97.9％,62.8％,64.3％ and 96.2％ respectively.There were significant differences of sensitivity or specificity between single test and joint tests.Conclusions The urine NGAL,KIM-1,IL-18 and serum Cys-C are sensitive indexes for the early diagnosis of acute kidney injury.Joint detection has high value for early diagnosis of AKI.

12 trace elements from the hairs of 20 cases of aplastic anemia were examined and compared with that from hairs of normal people as control. Results showed that in Yin-deficient type patients, Li, Ca, Si, Cr markedly decreased; in Yangdeficient type patients, Zn, Mg, Ba, Si, Ca, Li markedly decreased, while all 12 trace elements decreased in patients of deficiencies of both Yin and Yang. New approaches were also offered for treatment of aplastic anemia on the basis of differential diagnosis.

Objective To investigate the expression of hypoxia-inducible factor-1 alpha (HIF-1 α),vascular endothelial growth factor-A (VEGF-A) and vascular endothelial growth factor-D (VEGF-D)in hypoxic environment as well as the relationship between HIF-lα and VEGF-D.Methods Human esophageal cancer cell line EC9706 was cultured under hypoxia environment for 6,12 and 24 h,the cell radiosensitivity was evaluated by survival curve.HIF-1 α siRNA was constructed and transfected into human EC9706 cells.Protein expressions of HIF-1 α,VEGF-A and VEGF-D were analyzed by Western blot before and after RNA interference.Results EC9706 cells under hypoxia showed radioresistance with a SF2 of 0.62 higher than that of normoxic cells of 0.43.Moreover,the protein expressions of HIF-1α,VEGF-A and VEGF-D were all increased (F =205.24,227.88,130.55,P ＜0.05) due to hypoxia treatment.On the contrary,after HIF-1α siRNA transfer,the protein expressions of HIF-1α,VEGF-A and VEGF-D in EC9706 cells were not influenced by hypoxia treatment.Conclusions EC9706 cells in hypoxic environment was radioresistance,and the upexpressions of HIF1α,VEGF-A and VEGF-D may be involved.

Objective To summarize the therapeutic experience of 23 patients of traumatic head injuries with a score of 3 on GCS,Methods 23 most severe head injuried patients with a score of 3 on GCS who admitted were analyzed retrospectively.Results 8 cases(34%)survived in which 5 cases(21%)had a good recovery or moderate disability,and other 3 cases(13%)with severe deficits.The other 15 cases(66%)dead after therapy.Conclusion The prognosis of most severe head injured patients with a score of 3 on GCS could be improved by early evacuation of intracranial hematoma with large decompressive cranietomies,early moderate hypothermia therapy,early assistant ventilation and effective prevention and treatment of complications.

OBJECTIVE:To investigate the efficacy and safety of Xiaojin pill combined with docetaxel,epirubicin and cyclo-phosphamide in the treatment of breast cancer in stage Ⅲ and its effect on immune functions. METHODS:102 patients with breast cancer in stage Ⅲ were randomly divided into control group (51 cases) and observation group(51 cases). All patients were given symptomatic treatments as hydration,alkalization and antiemetic treatments in the duration of chemotherapy,and were given conven-tional treatments as 0.75 mg Dexamethasome oral tablets in 12 and 6 hours before the chemotherapy lespectively. Control group was given 75 mg/m2 Docetaxel injection,d1,intravenous infusion+60 mg/m2 Epirubicin hyclrochloride for injection,d1,intravenous in-fusion+600 mg/m2 Cyclophosphamide for injection,d1,intravenous infusion;observation group was additionally given 6 g Xiaojin pill,orally,twice a day. 21 d was regarded as a treatment course. Short-term clinical efficacy,immunoglobulin,T lymphocyte sub-sets(CD4+/CD3+,CD8+/CD3+,CD4+/CD8+)and the incidence of adverse reactions before and after chemotherapy in 2 groups after 2 courses were observed. RESULTS:There were no significant differences in the short-term effective rate and incidence of adverse reactions between 2 groups (P>0.05). Before chemotherapy,there were no significant differences in the immunoglobulin and T lymphocyte subsets between 2 groups(P>0.05). After chemotherapy,immunoglobulin levels in 2 groups were significantly lower than before,the differences were statistically significant (P<0.05);but there were no significant differences between 2 groups (P>0.05);CD4+/CD3+,CD8+/CD3+,CD4+/CD8+ in control group and CD8+/CD3+ in observation group were significantly lower than before,and CD4+/CD3+ and CD4+/CD8+ in observation group were higher than control group,the differences were statistically significant (P<0.05),but there was no significant difference in the CD8+/CD3+ between 2 groups (P>0.05). CONCLUSIONS:Based on the conventional treatment,Xiaojin pill combined with docetaxel,epirubicin and cyclophosphamide shows significant effi-cacy in the treatment of breast cancer in stageⅢ,and can improve immune functions,with good safety.

Purpose To evaluate the diagnostic values of Clusterin, CXCL13, Podoplanin (D2-40), CD21 and CD35 in follcular den-dritic cell sarcoma. Methods The expression levels of 10 cases of follcular dendritic cell sarcoma ( FDCS) and 12 types of FDCS mimics (83 cases in total) were investigated by immunohistochemical methods, the latter including solitary fibrous tumor, leiomyosar-coma, gastrointestinal stromal tumor and others. The diagnostic validities of the five biomarkers were compared. Results ( 1 ) The positive rates of Clusterin, CXCL13, D2-40, CD21 and CD35 in the FDCS group were 100%, 70%, 60%, 90% and 80%, respec-tively, the corresponding rates in the control group were 30%, 4%, 11%, 2% and 0 in turn. (2) The five biomarkers could be cate-gorized into 3 groups, according to their diagnostic values in FDCS. The first group included CD21 and CD35, which had much higher sensitivities (90%, 80%), specificities (100%, 98%) and accuracies (98%, 96%), compared with the other biomarkers. The second group included CXCL13 and D2-40, which had a relatively lower sensitivities (70%, 60%), specificities (96%, 89%) and accuracies (94%, 86%), compared with CD21 and CD35. The third group included Clusterin, which had the highest sensitivity (100%), while the specificity (70%)and accuracy (73%) were inferior to the first and second groups. (3) The diagnostic values of CD21 and CD35 combination were 100%, 98%, 98%, 83% and 100%, respectively. Conclusions (1) CD21 and CD35 are the most valuable biomarkers for FDCS. The combined diagnostic effect of the two markers is generally superior to that of single marker. (2) Clusterin has the highest sensitivity for FDCS. However, the frequent expression in FDCS mimickers restricts its diagnostic values for FDCS. (3) CXCL13 and D2-40 may be used as a marker for FDCS, but are not recommended as the first selection based on their diagnostic performance. (4) On the reasons that FDCS mimickers may not uncommonly express Clusterin and D2-40, and rarely show positivity for CD21 or CXCL13, more attention should be paid to the phenomenon to avoid misdiagnosis.

Objective To study the etiological agent of hand, foot and mouth disease ( HFMD) and the genetic characteristics of coxsackievirus A16 ( CVA16 ) strains isolated from clinical specimens of patients with HFMD in Liaocheng city in 2013.Methods Throat swab and stool specimens were collected from patients with HFMD in the disease surveillance hospitals in Liaocheng city from January to December 2013.Samples pos-itive for CVA16 strains were screened out for the isolation of virus strains with rhabdomyosarcoma ( RD) cells and Vero cells.The entire VP1 coding regions of 9 randomly selected CVA16 isolates were amplified and se-quenced.BioEdit and MEGA4 softwares were used for homology analysis.A phylogenetic tree among the 9 CVA16 isolates and 56 CVA16 representative strains of known genotypes and subgenotypes was constructed.Re-sults The results of PCR analysis showed that 747(77.73%) out of 961 specimens were positive for HFMD and among them, 74 samples (9.91%) were positive for EV71 strains, 130(17.40%) were CVA16 strains and 543(72.69%) were other enterovirus strains.The 9 CVA16 strains clustered into the B2b evolution branch of B genotype with the representative strains, sharing 97.7%to 100%homologies in nucleotide sequences and 99.3%to 100%in amino acid sequences.Conclusion Although EV71 and CVA16 strains were identified, other enteric viruses were the predominant pathogens causing HFMD in Liaocheng city in 2013.The CVA16 iso-lates belonged to B2b subgenotype.The pathogen spectrum of HFMD had already changed.It is necessary to strengthen the surveillance for EV71, CVA16 and other enteric viruses and understand their genetic characteriza-tions, which would be of great significance for the prevention and control of HFMD.

BACKGROUND:Al oying is a convenient and effective method to alter the microstructure and control the corrosion behavior of magnesium al oy.
OBJECTIVE:To explore the in vitro and in vivo degradation of Mg-Nd-Zn-Zr al oy as a degradable medical biomaterial.
METHODS:(1) In vitro static immersion test:The immersion tests were carried out at (37.0±0.5) thermostatic bath. Six Mg-Nd-Zn-Zr al oy samples and six pure magnesium samples were immersed in the 250 mL simulated body fluid and vibrated without agitation during immersion. After 3, 7 and 30 days static immersion, the samples were taken out from the simulated body fluid. Then the in vitro corrosion properties were evaluated using scanning electron microscope and energy dispersive spectrometer analysis. (2) In vivo animal experiment:After bone tunnel was established in the left femur of adult New Zealand rabbits, the Mg-Nd-Zn-Zr al oy rods were embedded in the Mg-Nd-Zn-Zr al oy group, titanium al oy rods were embedded in the titanium al oy group, and only bone tunnel was established in the sham-operated group. At 1, 2, 4, 8 weeks after implantation, an X-ray of the implanted region was taken to determine the location and the degradation behavior℃in a of Mg-Nd-Zn-Zr al oy. At 4, 8 weeks after implantation, the corrosion product and its element composition were observed using scanning electron microscope with an energy dispersive spectroscopy system.