Objective To investigate the value of C- reactive protein (CRP), interleukin-6 (IL-6), tumor necrosis factor alpha (TNF-?) in early diagnosis of neonatal sepsis. Methods Sixty- five newborns were divided into experiment group and control group, experiment group was also divided into sure group and doubtful group by blood culture We assessed the level of serum CRP, IL-6 and TNF-? in 24 hours and after 24 hours of clinical diagnosis of sepsis in experiment group, and examined the blood culture before antibiotic treatment Serum CRP, IL-6 and TNF-? were also examined in 3 to 6 days old. Results 1 The levels of serum CRP, IL-6 and TNF-? in experiment group were significantly higher than that in control group 2. The sensitivity of IL-6 and TNF-? were higher than CRP in 24 hours in experiment group. 3. After 24 hours, the sensitivity of CRP was elevated,and there was no statistical difference compared with the IL-6. Conclusion IL-6 and TNF-? are the credible marker in the early diagnosis of neonatal sepsis, and are more sensitive than the CRP, the IL-6 is the first sensitive marker.

China ; Curriculum ; Education, Dental ; Oral Medicine ; education

Procalcionin ( PCT) is a soluble protein liberated into the circulation of patients in response to severe systemic in-fection, in particular by bacterial infection.It is used as the most accurate biomarker for the diagnosis of sepsis.This review briefly de-scribes the induction of PCT, the comparison of PCT and other markers of sepsis, the application of PCT measurement in confirmation or exclusion of diagnosis of sepsis, the assessment of severity and treatment effectiveness of systemic infection, the application of PCT in guiding individual and specific treatment of antibiotics, and the anormaly situation of elevated levels of PCT in patients who do not have sepsis.

Objective To explore the enhancement effect of caffeine in cisplatin-induced apoptosis of osteosarcoma cell line OS-U2. Methods The osteosarcoma cells were incubated with different concentrations of cisplatin (0.2, 2, 5, 10 and 20?g/L), caffeine (0.2, 2.0mmol/L) and caffeine + cisplatin for 24, 48 and 72 hours. The proliferation of OS-U2 cells was determined by MTT assay, the apoptotic levels were determined by flow cytometry (FCM), and the morphologic changes of apoptotic cells and the positive rates of apoptosis were determined by fluorescence microscopy. Results The proliferation of OS-U2 cells was inhibited, and the apoptotic level was increased when incubated with caffeine and/or cisplatin. There were dose- and time-effect relationships between the lethal effect of cisplatin on osteosarcoma cells and caffeine. Conclusion There is a remarkable enhancement effect of caffeine on cisplatin-induced apoptosis of osteosarcoma cell line OS-U2. It seems that the apoptosis-inducing activity of caffeine may enhance the lethal effect of cisplatin on osteosarcoma cells.

Objective To provide reference for clinical pharmacist participating in management of nausea and vomiting induced by tumor chemotherapy. Methods The process of pharmaceutical care for a patient with severe vomiting caused by adjuvant chemotherapy after gastric cancer operation was described. Antiemetic application and drug adverse reactions were analyzed. A new treatment plan was given by clinical pharmacist. Results The suggestions were adopted by clinician. The vomiting was controlled and drug adverse reactions were dealt with. Conclusion To reduce the risk and improve the income of antiemetic,clinical pharmacists should pay more attention to clinical practice guideline,drug interaction and adverse reactions, provide the most suitable suggestions for clinicians according to pharmacology and evidence-based medicine.

The most of secreted proteins are exported by Sec translocase (secretion pathway). SecA ATPase is one of the most important subunit in the Sec translocase, which is preprotein translocase nanomotor that undergo membrane insertion and deinsertion to drive preprotein across the bacterial inner membrane, and SecA is indispensable to bacteria. It should be presumed that the compound which inhibits the activity of SecA ATPase probably can be used as the candidate of bactericide. A secA gene from Pseudomonas aerugi- nosa PAO1 was amplified and expressed in Escherichia coli BL21.19 (secA13). It has been shown that the wild-type SecA of Pseudomonas aeruginosa could fully complement the E. coli amber (secA13) mutant at the non-permissive temperature. So a cell level screening model targeting on SecA was established based on the above result. The inhibition of PaSecA ATPase activity was applied to validate the specificity of the cell-based method. Two positive samples based on both of cell and enzyme activities will be further studied.

PPP2R5C is one of the members of regulatory subunits of protein phosphatase 2A (PP2A), which plays a critical role in cell proliferation, differentiation and transformation, based on its induction of dephosphorylation of P53 at various residues. Recently, it was characterized that the alteration of expression pattern of PPP2R5C is associated with cell malignant transformation, thus PPP2R5C was thought as a marker for progressive disease in B-CLL. In this article the gene structure and biological function of PPP2R5C as well as relation of PPP2R5C with genesis and development of cancer were discussed.
Cell Line, Transformed ; Cell Proliferation ; Cell Transformation, Neoplastic ; Humans ; Molecular Structure ; Protein Phosphatase 2 ; genetics ; Protein Subunits

Objective To construct an eukaryotic expression plasmid PeDNA3.1 (+)/Lpp20 and to detect its expression in HeLa cells, and to observe the humoral and cellular immune responses in C57BL/6 mice induced by the Helicobacter pylori Lpp20 DNA vaccine injected intramuscularly. Methods The Lpp20 gene was amplified by PCR. PCR product was subcloned into the eukaryotic expression vector pcDNA3.1 (+)/ Lpp20, and the recombinant plasmid was transfected into HeLa cells using Liposome. After verifying that the Lpp20 antigen gene could be expressed in HeLa cells. Six weeks old C57BL/6 mice were immunized with pcDNA3.1 (+)/Lpp20 or pcDNA3.1 (+) or PBS buffer intramuscularly at 2-week interval for four times. ELISA was used for the quantitative detection of the specific IgG antibody in the sera of C57BL/6 mice and the cytokine IFN-γ in mice spleen lymphocyte culture medium after stimulating by Lpp20. The proliferation response of spleen cells was detected by MTT assay. The Lpp20 gene in muscle was identified by PCR. Results The significant specific antibody titers were detected by ELISA in DNA vaccine groups and the highest titer was 1:1024 after 6 weeks. The cytnkine IFN-γ in mice inoculated with pcDNA3.1 (+)/Lpp20 was increased and reached (410.36±56.23) pg/ml. A significant difference was tested between the experiment group and the control group[(25.26±10.85)pg/ml] ,P <0.01. The proliferation response of spleen cells of DNA vaccine group(SI: 2.37±0.22) was significantly higher than those of mice injected with pcDNA3.1 (+) (SI:1.53+0.47) ,P<0.01. Lpp20 gene could exist constantly in musculature cells of mice. Conclusion The eukaryotic expression recombinant pcDNA3.1 (+)/Lpp20 was successfully constructed. Strong humoral and cellular im-munity can be induced by DNA vaccine of pcDNA3.1(+)/Lpp20 in C57BL/6 mice, which might be helpful for further investigation concerning the immunoprotection of DNA vaccine.

Objective To evaluate the incidence and severity of pulmonary embolism (PE) in patients with different leg deep vein thrombosis (DVT) by computed tomography pulmonary angiography (CTPA).Methods A total of 145 cases who had been confirmed DVT and undergone CTPA were retrospectively analyzed.The DVTs were divided into left side DVT,right side DVT,and bilateral lower DVT groups.The incidence of PE was compared among different groups.CT obstruction index (CTI) was used to estimate the severity of pulmonary artery obstruction.DVT/PEs with CTI were compared among different groups.Results The incidence of PE of the bilateral lower DVT group was 71.4％,which was higher than that in left side DVT group (39.2％).However,no significant difference was found between bilateral lower DVT group and right side DVT group (52.9％) (P ＞ 0.05).The CTI of the bilateral lower DVT (30.20±14.20)％ was higher than that of the left side DVT (19.26 ± 14.02)％ and the right side DVT (18.56 ±11.79) ％ (P ＜ 0.05).Conclusions The bilateral lower DVT was more likely complicated with PE than the left side DVT,the severity of pulmonary artery obstruction of the bilateral lower DVT with PE patient was higher than that of single side DVT with PE patient.

Objective To evaluate the clinical significance and prognosis of tetus with lateral ventriculomegaly.Methods We retrospectively analyzed 92 singleton pregnant women who were antenatally diagnosed with fetal ventriculomegaly by ultrasound in genetic conselling clinics,Department of Gynaecology and Obstetrics,Nanfang Hospital,Southern Medical University between August 2007 and August 2010.All participants were divided into three groups according to the width of the lateral ventricles:group A (10.0-12.0 mm,n＝50),group B (12.1-14.9 mm,n=38) and severe ventriculomegaly group (≥15.0 mm,n=4).All fetuses were followed up.Chi-square test(or Fisher's exact test),Bonfferoni method,Mann Whitney or Kruskal-Wallis test were used for statistics.Results In group A,B and severe ventriculomegaly group,18％ (9/50),65.8％(25/38)and 3/4 of fetuses were complicated with structural malformation,respectively (x2 =22.934,P =0.000),and statistical significance were found only between group A and B (x2 =20.798,P=0.000).The incidences of fetal chromosomal aberration were 4.0％ (2/50),7.9％ (3/38)and 0/4 in the three groups,respectively (x2＝0.878,P ＝ 0.645).Eventually,all four cases with severe cerebral ventriculomegaly were terminated.Among cases of mild ventriculomegaly,63 women continued the pregnancy (48 in group A and 15 in group B).The intrauterine improvement of group B was poorerthan that of group A (Z=-3.317,P =0.001).Respectively,three,ten and two cases of ventriculomegaly deteriorated,stabilized and regressed in group B,and the corresponding figures were 3,15 and 30 in group A.In group A,the prognosis of fetus with non-isolated ventriculomegaly was poorer than that of fetus with isolated ventriculomegaly (Z=-2.631,P=0.009).For neonates 14 days after birth (n=62),the rates of normal neonatal behavioral neurological assessment (NBNA) scoring were respectively 93.8％ (45/48) and 71.4％ (10/14) for groups A and B with statistical difference (Fisher's exact test,P =0.040).Bayley scales of infant development (BSID) used to evaluate infants at 12-month-old revealed that the psychomotor developmental index (PDI) between group A and group B had statistical difference (8,26 and 1 case of good,moderate and poor development in group A; one,seven and three cases in group B; Z=-2.203,P=0.043).However,the mental developmental index (MDI) between group A and B had no statistical difference.Twenty babies among the survived ones received magnetic resonance imaging (MRI) examination.The results showed that lateral ventricle width regressed in nine babies (45.0％) and progressed in one baby (5.0％).Ten cases (50.0％) did not change.The change of ventriculomegaly after birth was related to BSID evaluation.Better prognosis of fetuses were found in those with regressed ventriculomegaly (P=0.033).Conclusions Fetuses with mild ventriculomegaly (10.0 12.0 mm) have a favorable outcome.Further investigations,such as fetal development,chromosomal examination,intrauterine infection screening and MRI if necessary,are suggested for fetus with ventriculomegaly.Moreover,intensive intrauterine and postnatal follow-up is recommended.