Objective: To analyze the effect of tirofiban on patients with ST-segment elevation acute coronary syndrome undergoing intervention treatment. Methods: Chosen patients with ST-segment elevation acute coronary syndrome between November 2012 to November 2013 as research subjects,randomly assigned to observed group received conventional treatment and control group received tirofiban perioperative, detecting before and after platelet CD40L expression, serum CRP levels, cardiovascular events. Results:1)After treatment, observed group patients platelet CD40L expression intensity was significantly lower than control group(t=3.281, P<0.05);2) at various time points after dosing, serum CRP in observation group were significantly lower than control group patients (t=2.183, t=2.748, t=4.719;P<0.05);3)After treatment, observation group patients cardiovascular event rate was significantly lower than control group(x2=6.493, P<0.05). Conclusion:Perioperative tirofiban therapy can effectively reduce the expression and inflammation in patients with platelet levels, reduce the incidence of adverse cardiovascular events, with positive clinical significance.

OBJECTIVE: Superoxide dismutase is one of the families of enzymes which is ubiquitous, and efficiently catalyzes the dismutation of superoxide anions.There are three superoxide dismutases in human brain that are of benefit to ischemic damage. In recent years, transgenic and knockout mutant mice has been widely used in the researches of superoxide dismutases for its protective effect in cerebral ischemia.DATA SOURCES: Using the terms "Chan PH and superoxide dismutase and cerebral ischemia", the relative articles published in the English from January 1991 to December 2003, were identified by searching the MEDLINE database with computer.STUDY SELECTION: The trials with transgenic and knockout mutant mice were identified preliminarily, then all remainders were searched in full content and were divided into intervention group and controlled group, the random cases were accepted, non-random excluded.DATA EXTRACTION: A total of 38 fully studies related to cerebral ischemia and superoxide dismutase were collected, among them, 13 random cases were accepted, and 25 excluded which included 15 repeated studies and 10 irrelevant studies.DATA SYNTHESIS: Reactive oxygen species involved in redox signaling pathways in ischemic cerebral, it can also cause oxidative damage of some macromolecules cell such as lipids, proteins and neucleic acid. In the ischemic brain tissue, overproduced oxygen radicals and consumption of superoxide dismutases lead to tissue damage. Copper-zinc superoxide dismutase, manganese superoxide dismutase and extracellular superoxide dismutase have the same function which can decompose superoxide anion radicals to form H2O2 that are scavenged further, thereby ameliorate edema formation,infarction and cell death, improve the function of ischemic cerebral tissue further.CONCLUSION: Increased oxygen free radicals is an important mechanism in ischemic cerebral damage, all three SOD can ameliorate cerebral ischemia. The protect effect of three superoxide dismutase is related to DNA repairing enzyme, transcription factor, apoptosis proteins and signal transduction pathway.

Objective: To develop a cross-culture revision of career decision-making difficulties questionnaire(CDDQ) for undergraduate students. Methods: A total of 330 college students were tested with CDDQ. Results: ①Cronbach ? coefficients ranged from 0.68 to 0.84;②There were significant differences among different students. Conclusion: The psychometric properties of the inventory developed in this study are acceptable. It can be used as the instrument for measurement of undergraduates' career desicion making difficulties, However, revision should be made in accordance with the condition of China.

Excessive release of glutamic acid plays an important role in the occurring and development of many nervous system diseases.Ionotropic glutamate receptors antagonists are shown to have therapeutic effect in animal models,but their clinical application is limited by their effects of blocking the normal excitatory neurotransmission.However,metabotropic glutamate receptors can suppress the release of glutamic via presynaptic mechanisms,which makes them the new targeting points of certain nervous system disease.This paper reviews the recent research progress of mGluRs in nervous diseases both at home and abroad.

Objective:This study aimed to investigate the expressions of EZH2 and Ki-67 in the salivary adenoid cystic carcino-ma (SACC) of humans and their correlation. Methods:A total of 42 cases of SACC tumor tissues and 5 cases of normal tissues were considered to determine the expressions of EZH2 and Ki-67 by immunohistochemistry. The relationship and correlation of such expres-sions with the clinicopathological characteristics were also analyzed. Results:The expression of EZH2 was notably higher in SACC than in normal tissues (P<0.05). EZH2 expression was detected in 66.67%(28/42) of the tumor tissues. This expression was correlated with pathological grade and clinical stage. By contrast, EZH2 expression did not correlate with gender, age, and localization. EZH2 was not expressed in normal tissues. The incidence of EZH2 expression in the Ki-67 positive group was 75.76%(25/33) and the incidence in the Ki-67 negative group was 33.33%(3/9). The difference between the two groups was statistically significant (P<0.05). Conclu-sion:The increased expression of EZH2 in SACC was related to tumor proliferation. EZH2 may participate in tumor cell proliferation via cell cycle management.

Objective Explore the diagnostic effect of high-sensitivity C-reactive protein (hs-CRP) in pediatric infectious diseases. Methods The BNProSpec automatic protein analyzer was used to detect the serum hs-CRP levels of children including 246 cases of bacterial infection, 132 cases of virus infection and 72 cases of healthy children (control group) . Results The serum hs-CRP levels were 57.2±19.5 mg/L,4.6±3.2 mg/L and 1.7 ±0.4mg/L in children of the bacterial infection, virus infection and normal control group, respectively. Conclusion The serum levels of hs-CRP in children with bacterial infection were significantly higher than those in other two groups,and the difference was significant ( <0.05) . The results suggested that serum hs-CRP testing has great application value in the diagnosis of pediatric infectious diseases, treatment and prognosis.

Objective To discuss the diagnosis value of DNA imaging cytometry (DNA-ICM) analysis in fine needle aspiration cytology (FNAC).Methods Conventional cytopathology and DNA-ICM were used to detect 95 fine needle aspiration patients with breast masses.The results were analyzed according to the histopathological diagnosis.Results There was not significant difference between conventional cytopathology and DNA-ICM [88.4 ％(84/95) vs.94.7 ％(90/95)] (x2 =2.457,P =0.117).Two false positive cases had been found in conventional cytopathologic diagnosis,but not in DNA-ICM.There was a positive correlation between the nucleus area and its DNA content (r =0.744,P =0.000).By DNA-ICM,the detectable rate of abnormal DNA content in the infiltrating ductal carcinoma was higher than that in the infiltrating lobular carcinoma [90.3 ％(65/72) vs.50.0 ％(4/8)] (P =0.011).Conclusion The detection of DNA-ICM can reduce the false positive rate of FNAC,but it has limitations in diploid tumors.

Numbering quantities of medical equipment is studied based on Queueing Theory, which can provide a useful and applicable tool for study on medical equipment numbering.

Objective To explore the relationship between prenatal diagnosis indications and fetal chromosomal aberrations , and the security of amniocentesis. Methods The amniotic fluid cells were sampled by amniocentesis and cultured in 572 high-risk pregnant women from January 2012 to August 2015. The chromosomal karyotypes were examined by G-banding. Results The success rate of the first amniotic fluid cells culture reached 99.83%. In all the 572 valid samples , there were 20 cases of chromosomal aberrations and the abnormal rate was 3.50%, including 17 of numeric aberrations and 3 of structural aberrations. There were 7 cases of chromosomal aberrations in all the 299 elderly parturient in high-risk indications and the abnormal rate was 2.34%, and there were 13 cases of chromosomal aberrations in all the 273 non-elderly parturient and the abnormal rate was 4.76%. Conclusions (1)It is necessary to further diagnose in pregnant women with high-risk factors , including high age , abnormal screening and ultrasonic findings , and history of abnormal gestation and birth. (2)The chromosomal karyotype examination of amniotic fluid cells in high-risk pregnant women is one of the effective prenatal diagnosis methods in high security and accuracy , with which it can reduce the incidence of birth defects and the burden of family and society , and improve the quality of the population.

Hitherto, it is reported that caspase family includes 14 members at least, which play important roles in executing cell apoptosis. Experimental studies have proved that caspases are expressed and activated in the injured skin and during skin wound healing, which suggests that cell apoptosis induced by caspases may occur. Further investigation on the roles that caspases play in the injured skin and during skin wound healing may offer a new way for the clinical treatment of the skin wound and the medico-legal wound age determination. The article reviews the biologic characters of caspases and the advances in the studies on the caspases in the skin wound and wound healing. It is suggested that caspases exert significant parts during skin wound healing, which are worthy of further investigation.