Leukemia is a malignant hyperplasia disease of hematopoietic system. It is characterized that a certain blood cell system proliferates, gets into blood streaming, infiltrates each organism and apparatus and arouse a series of clinical manifestation. In recent years the study of leukemia has discovered that it was correlated with apoptosis of the cells. The roles of XIAP and survivin in apoptosis inhibition have been especially paid attention. It is discovered that they play major roles in the genesis and resistance to chemotherapeutical drug of tumors. We summarize the biological characteristics and the expressions of XIAP and survivin in the children with acute leukemia.

Objective:To explore the relationship amongst neuroticism,self-efficacy and test anxiety,and the moderating effect of self-efficacy.Methods:581 middle school students were assessed with neuroticism-related items from Big Five Adjective Scale,Schwarzer General Self-efficacy Scale(GSES) and Cognitive Test Anxiety Scale(CTAS).Results:①Test anxiety was negatively correlated with self-efficacy(r=-0.37,P

Object To isolate and identify the chemical constituents of Saussurea japonica (Thunb.) DC. and to obtain some rules of chemical shift effects on hydroxylation and O-glycosylation. Methods The constituents were isolated by silica gel column chromatography and HPLC (RP-18), and their structures were elucidated through spectroscopic analysis (NMR and FABMS). The rules were obtained by comparison with those of known analogous lignans. Results Three lignan glycosides were isolated and identifiedcas (+)-1-hydroxypinoresinol-4″-?-D-glucopyranoside (Ⅵ), (+)-lariciresinol-4-?-D-glucopyranoside (Ⅷ), and (+)-1-lariciresinol-4′-?-D-glucopyranoside (Ⅸ), as well as the rules for effects of the hydroxy group at C-1 (upshift about ??-4.2) and O-glucosylation (downshift about ??+3.0) on 13CNMR chemical shifts of (+)-pinoresinol and (+)-lariciresinol. Conclusion All these compounds were obtained from the plants of Saussurea DC. for the first time and the rules should be as some important evidences to assign the position of hydroxylation and glycosylation.

It is well known that pulmonary hypertension(PH) is one severe complication of bron-chopulmonary dysplasia( BPD) that is associated with high mortality. Aberrant pulmonary vascular growth, abnormal vasoreactivity and pulmonary vascular remodeling may ultimately lead to PH. Symptoms of PH of-ten overlap those of BPD itself. Furthermore,the emergence of symptoms may indicate that the disease has already progressed to a late, less reversible phase, thereby supporting arguments for screening all infants at risk. Echocardiography is non-invasive and widely available,and is currently the most commonly used screen-ing modality for PH in infants with BPD. Because the incidence of associated cardiovascular anomalies is high,cardiac catheterization and CT scanning of the chest should be considered in all infants who have signifi-cant PH despite optimal management of their lung disease. Early diagnosis and aggressive specific drug thera-py can improve the outcome for these patients.

Objective To investigate the numbers and distribution of dendritic cells and the expressive intensity of CD1c,S-100,HLA-DR and its relation with T cell in human breast cancer tissues,and to discuss the relationship between dendritic cell(DCs) and developing of breast cancer.The study can provide the experimental data in the further biological therapy of breast cancer. Methods The human breast cancer tissues and relatively normal breast tissues were collected from surgical operation and the samples of 20 patients with breast cancer were analyzed by immunocytochemistry and computer imaging techniques. Results The result showed that the expressive intensity of CD1c,S-100,HLA-DR was dramatically weaker in breast cancer tissues than in those of relatively normal breast tissues(P

[Objective] To introduce the Professor SHI Yanping's experience in treating adenomyosis with traditional Chinese medicine. [Methods]Through clinical learning with the teacher and systematic reading literatures about adenomyosis, the author summarized the teacher 's academic thoughts and clinical treating experience of the disease from the etiology and pathogenesis,fundamental law of treatment ,and medication characteristics,and one proven case was presented respectively.[Result] Professor SHI thinks the basic pathogenesis of adenomyosis is deficiency of kidney and blood stasis, accompanied by phlegm dampness, the proof is vacuity, treatment should be staged in terms of different periods:non menses-paying attention to eliminating mass and strengthening the body resistance, creatingNei Yi Ting Fang;menses-paying attention to regulating qi and blood by warming drugs, makingXin Gui Zhi Tong Fang;and at the same time,we have to pay attention to the adjustment of life style.All those lead to a good clinical effect. [Conclusion] The rich experience of Professor SHI in treating this disease might be worthy of promotion and learning,which has a good effect on relieving the discomforts and improving the quality of life in patients.

One alkaloid was isolated for the first time from Artemisia genus and four flavonoids also for the first time, from A. roxburghiana Wall. They were identified as N-phenyl-2-naphthylamine, penduletin, quercetin, 3,3.4′-trimethyl ether,eupatilin, jaceosidin by their spectroscopic data (MS, 1HNMR,UV).

2.5-7.0,a close correlation can be seen between the indoor and outdoor air.

Spontaneous locomotor activity is a widely used evaluation method in safety pharmacology of central nerve system and investigation of neuroscience.Spontaneous locomotor activity test is an important method that can investigate several animals' species and their associated indexes of spontaneous locomotor activity;it can also provide parameters for several pharmacological objectives including safety pharmacology of central nerve system.The new developed equipments and methods have many merits.This paper reviews the progress of methodology of spontaneous locomotor activity test in rats,pigs and monkeys.

BACKGROUND:When bone cement solidifies fast,the bone cement consistency will be decreased.resulting in difficulty in molding.DESIGN,TIME AND SETTING:Open experiment,performed in the Laboratory of Department of Materials,Lanzhou Jiaotong University between March 2005 and August 2006.gelatin were mixed with citric acid to produce hardening liquid.Then bone cement power and hardening liquid were mixed to form a paste,I.e.,bone cement.METHODS:Setting time of bone cement was determined using a Vicat apparatus.The compressive strength of bone cement at different proportions was tested using MTS-810 material tester.After 2 months of physiological saline soaking at 37℃.the microstructure of solidified bone cement was observed using scanning electron microscope.MAIN OUTCOME MEASURES:Setting time and compressive strength of bone cement,pH value of hydrated bone cement and the microstructure.RESULTS:After adding chitosan and gelatin in the hardening liquid.the consistency of the concoction obviously increased,the setting time became a little longer and the water-resistance of samples was enhanced.therefore the samples could be easily molded.But the compressive strength of the bone cement decreased a little.The pH value of the hydrated bone cement increased gradually with time and was close to the pH value of physiological saline at hour 24.The compressive strength of bone cement was achieyed at 24 hours and it almost did not change after 48 hours.the drawback of ceramic HA,including sintering and difficulties in shaping.It has the characteristics of simple-producing,easy application and low heat energy.