Chemokines are a class of functional chemotactic peptide. CXC chemokine class is a large family of chemokines in a sub- tribe. In the occurrence and development of tumor cells, there often accompanied by a series of molecular and biology change. CXC chemokine subfamily is closely related to the body' s immune response to tumor and biological behaviors of tumor. In this paper, CXC chemokine sub-Several members of the tribe and their receptor and tumor biological relationship are reviewed.

OBJECTIVE:To compare the cost of Xiangdan injection and Danshen chuanxiongqin injection in the treatment of unstable angina pectoris of coronary heart disease,and to provide reference for rational and economic drug selection. METHODS:42 inpatients with unstable angina pectoris of coronary heart disease were divided into Xiangdan injection group(group A,20 cas-es) and Danshen chuanxiongqin injection group (group B,22 cases). Two groups were given conventional symptomatic treatment according to the specific clinical situation;on this basis,group A was given Xiangdan injection 20 ml intravenously,qd;group B was given Danshen chuanxiongqin injection 10 ml intravenously,qd,for 14 d. Clinical efficacy and the occurrence of ADR were compared between 2 groups,and cost-minimization analysis was conducted. RESULTS:After treatment,total effective rate of group A and B was 95.00% and 95.45%,without statistical significance(P>0.05);there was also no statistical significance in the incidence of ADR (P>0.05). The costs of 2 groups were equal in addition to the cost of drugs. According to cost-minimization analysis,the drug cost of group A was 77.28 yuan and total cost was 705.88 yuan;the drug cost of group B was 1 310.40 yuan and total cost was 1 939.00 yuan;the drug cost and total cost of group A were far more less than that of group B,with statistical significance(P<0.05). The results of sensitivity analysis were consistent with it. CONCLUSIONS:The cost of Xiangdan injection is lower and more economical than that of Danshen chuanxiongqin injection in the treatment of unstable angina pectoris of coronary heart disease.

Objective To study the therapeutic and protective effect of low tidal volume(LTV) ventilation in children with acute respiratory failure.Methods Forty-eight patients with respiratory failure were enrolled in our study.The patients were suffered from severe infection,trauma or after major operation.Besides general treatments,they were all given ventilation with LTV.Blood gas,ventilation parameters and complications related to ventilation were also measured.Results No significant difference was found between the patients with high tidal volume(HTV) and those with LTV in the results of improving respiratory acidosis.But the incidence of(ventilated-)induced lung injury(VILI) was lower in LTV patients.Conclusion LTV ventilation is preferable for children with acute respiratory failure and beneficial for alleviation of VILI.

Biomarkers, Tumor ; metabolism ; therapeutic use ; Brain Neoplasms ; diagnosis ; metabolism ; therapy ; Glioma ; diagnosis ; metabolism ; therapy ; Humans ; Ki-67 Antigen ; metabolism ; Molecular Targeted Therapy ; Myelin Proteins ; metabolism ; Neoplasm Invasiveness ; Nogo Proteins

Adult ; Electrolysis ; Humans ; Lipid Peroxidation ; drug effects ; Male ; Middle Aged ; Nickel ; adverse effects ; blood ; pharmacokinetics ; Occupational Exposure ; adverse effects

Animals ; Brain Neoplasms ; etiology ; metabolism ; pathology ; Glioma ; etiology ; metabolism ; pathology ; Humans ; Neoplastic Stem Cells ; pathology ; physiology ; Signal Transduction ; Stem Cell Research

Extracorporeal Membrane Oxygenation ; Female ; Heart Failure ; therapy ; Humans ; Infant ; Postoperative Period ; Respiratory Insufficiency ; therapy ; Twins, Conjoined

Objective To discuss the influence of blood exchange transfusions on hemato- microenvironment of neonates with hyperbilirubinemian.Methods Blood exchange transfusion was performed in 35 neonates.Mean transfusion volume was (136.9±27.4) ml/kg.The speed of blood exchange transfusion was 92 ml/(kg·h).Blood bilirubin,blood electrolyte,blood routine and blood sugar levels were measured before,during and after the transfusion.Results Serum total bilirubin (TB) decreased by 53.78% after blood exchange,but there was no change in Na~+,Cl~-,and blood sugar (P＞0.05),and K~+ was remarkably decreased from (4.45±2.40)mmol/L to (3.87±0.52)mmol/L (t=21.979,P＜0.05).TB,Hb,PLT,WBC,Ca~(2+) were decreased[TB from(511.52±80.21) μmol/L to (236.41±66.54) μmol/L;Hb from (145.20±11.70) g/L to (128.66±2.54) g/L;PLT from (207.84±70.67)×10~9/L to (134.86±48.61)×10~9/L;WBC from (16.90±10.56)×10~9/L to (8.94±7.44)×10~9/L,and Ca~(2+) from (1.26±0.32) mmol/L to (0.99±0.22) mmol/L,P＜0.05 or ＜0.01].Conclusions Blood exchange transfusion can not influence Na~+,Cl~-,and blood sugar,but has remarkable effect on total bilirubin,Ca~(2+),Hb,K~+,PLT,and WBC.

Objective To investigate the effects of extractum trametes robiniphila murr combinated with hydroxyurea on proliferation and apoptosis of K562 cells and whether the 2 drugs have synergistic effects,and to detect the antiproliferation and apoptosis ratio of cells in diffe-rent groups were detected.Methods K562 cells were cultured in vitro,and logarithmic phase cells were used for study.MTT-inhibitory test and cell morphological analysis were employed to examine the effects of extractum trametes robiniphila murr alone or in combination with hydroxyurea on proliferation of K562 cells.The effects of extractum trametes robiniphila murr alone or in combinated with hydroxyurea on apoptosis of K562 cells were examined by flow cytometry.The expressions of bcr-abl,bax and bcl-xl mRNA levels were detected by way of reverse transcription polymerase chain reaction(RT-PCR).Results Extractum trametes robiniphila murr could inhibit proliferation and induce apoptosis of K562 cells,and extractum trametes robiniphila murr combinated with hydroxyurea had a synergistic effects on cell prolife-ration and apoptosis.The RT-PCR displayed that either extractum trametes robiniphila murr alone or in combinated with hydroxyurea could down-regulate the expression of bcl-xl mRNA and up-regulate the expression of bax mRNA and the effect of the 2 drugs had a synergistic effect on bcl-xl and bax mRNA expressions.Extractum trametes robiniphila murr alone could also down-regulate the expression of bcr-abl mRNA,but hydroxyurea alone did not show any effect on the expression of bcr-abl mRNA and the 2 drugs had no synergistic effect.Conclusions The effect of extractum trametes robiniphila murr combinated with hydroxyurea on the proliferation and apoptosis of K562 cells has a synergistic effect.The mechanism of antiproliferation and inducing apoptosis of extractum trametes robiniphila murr is probably related to down-regulating the expression of bcl-xl and bcr-abl mRNA and up-regulating the expression of bax mRNA.The synergistic effect of antiproliferation and inducing apoptosis of extractum trametes robiniphila murr combinated with hydroxyurea on K562 cells is probably related to down-regulating the expression of bcl-xl mRNA and up-regulating the expression of bax mRNA.

Objective:To establish a GC method for the determination of residual organic solvents in lidocaine patches. Methods:GC was carried out on a DB-WAX capillary column (30 m × 0. 25 mm, 0. 5 μm). The detector was FID and the carrier gas was He. The initial temperature was 50℃, maintained for 8 min, and then raised to 250℃ with a rate of 50℃ per min. The inlet temperature and the detector temperature were 280℃. The separation was 50 ∶1. Results:The linear range of acetone, ethyl acetate and methanol was 15. 0-600. 0 μg·ml-1. The average recovery was 97. 4% (RSD =3. 2%, n=9), 95. 6% (RSD=1. 9%, n=9) and 112. 0%(RSD =4. 5%, n=9), respectively. Conclusion:The method is simple and accurate,which can be used for the determination of re-sidual organic solvents in lidocaine patches.