Objective: To examine the parents’rearing and educating patterns and their relationship to the characteris- tics of self- concept of adolescents. Methods: A sample of 313 adolescents was tested by the Self- concept Scale and the revised EMBU. Results: Physical self and character self of boys are higher than those of girls. Family self of adolescents whose father has high education level is higher than that of adolescents whose father has low education level(P

The most severe adverse effect of lead is neurotoxicity. The brain in development is extremely sensitive to lead. The present paper reviewed the research advances in cell mechanisms of lead neurotoxicity achieved in recent years , namely the competition effect with calcium ion, the impact on neurotransmitter, the lipid peroxidation damage on hippocampus neuron.

Objective:To examine the difference of undergraduates' gender belief in sex and gender role stereotype.Methods:A sample of 552 undergraduates was tested by BSRI and gender belief stereotype scale.Results:①Traditional gender belief of academic,occupation and family has difference on sex and gender role stereotype.②Men college students have higher traditional gender belief of academic,occupation and family than women college students.③College students of masculinity and undifferentiation have higher traditional gender belief of academic and occupation than college students of androgynous and femininity.College students of masculinity have higher traditional gender belief of family than college students of femininity,androgynous and undifferentiation.Conclusion:College students of men and masculinity have higher gender belief of academic,occupation and family.

It was reported that immuno-regulatory mechanism of Ginsenoside on NK cell activity through pituitary-adrenal axis in operation stressed mice. Ginsenoside could modulate NK cell activity in mice against stress. On the other hand the level of plasma ACTH, corticosterone and the splenocyte ACTHR increased in stressed mice, as we know that ACTH, corticosterone could inhibite immunocyte function. However, Ginsenoside decreased the level of ACTH and corticosterone. This result suggests that the regulation effect of Ginsenoside on NK cell activity may be related to the action of pi tui taryadrenal axis under stress conditions.

The porcine CRF partly purified according to Vale's method used an immunogen to prepare the rabbit anti-CRF serum. The specific CRF radioimmunoassay was developed with the antiserum and ~(125)I-h-CRF. The antiserum revealed 20% tracer binding at 1: 1600 working dilution and was no cross-reactivity with relative peptides in RIA. The lower limit of detection of standard CRF was 25-50pg/ml in RIA. The concentration of CRF in plasma and brain tissue was measured by this method. The results are consistent with that of Sapolsky et al. Therefore the CRF RIA can be used for CRF detection in plasma and tissue extracts.

Probiotcs are viable organisms or bacterial meal replenishers that do good to our body.They have multiple functions like improving internal gut environment,reinforcing immunity,antitumors,and are more and more widely used in clinical studies to cure some diseases,such as IBD,pouchitis,infective diarrhea and so on.This review is about the new progress in the acting mechanism and clinical application of probiotics.

Tocotrienol has showed inhibition effect on a variety of cancer cells. It has different mecha-nisms in different types of cancer cells. Its anticancer effects may be mediated by anti-proliferation,anti-oxida-tion,pro-apoptotic and affecting apoptosis signal pathway. Further study on tocotrienol will provide scientific the-ory for new antitumor drugs and cancer primary prevention.

As a member of interferon regulatory factor family (IRF),IRF3 plays an important role in triggering the expression of type Ⅰ interferons and downstream interferon-stimulated genes,contributing to many biological process.Researches have found that it plays an anti-oncogene role in inhibiting tumor proliferation and migration,inducing cell apoptosis.The mechanism involves in tumor immunity and inflammatory reaction,apoptosis and epithelial mesenchymal transition.The alternative splicing isoforms of IRF3 act as negative modulators of IRF3 and affect tumor development progress.The recent signaling pathways and pathogenesis researches provide new ideas for early diagnosis and treatment of cancer.

Objective To know the epidemiological characteristics of children dental fluorosis in endemic fluorosis areas in Tianjin. Methods Ten prevalent areas were selected and 55 villages were collected by cluster sampling in 2008. Such indicators of endemic fluorosis as the content of water fluoride in the investigated villages,the state of dental fluorosis among the children aged 8-12 years,the concentration of urine fluoride were investigated. Results The average rates of dental fluorosis were different among different areas(?2=773.571,P=0.000) ,positively correlated with the content of water fluoride(r=0.924,P=0.000) . In serious prevalent areas,the average rates of dental fluorosis were different among age groups(?2=16.351,P=0.003) . The geometric mean of urine fluoride was different among different areas(H=75.356,P=0.000) ,positively correlated with the content of water fluoride(r= 0.266,P =0.000) . In the same area,no significant difference was observed in the geometric mean of urine fluoride among age groups. Conclusion In Tianjin,endemic fluorosis is still very serious and the efficient control will be promoted.

ObjectiveTo study the clinical effect of endoscopic treatment for acute non-variceal upper gastrointestinal bleeding.MethodsThe clinical data of 78 cases in our hospital with acute non-variceal upper gastrointestinal bleeding were retrospectively analyze.All patients were checked by gastroscopy accompanied by endoscopic treatment.Another 50 cases received ogilvy pull thiazole treatment were analyzed.ResultsAfter endoscopic therapy,all patients were successfully achieved hemostasis,success rate 100.0％.Of which 27 cases were treated by spraying drugs in conducting hemostasis,25 cases succeeded at the first time,the other two turned to injection after the failure;21 cases were treated by injection to stanch bleeding succeeded for the first time;30 cases were treated with titanium clips made it at the first course.None of the patients transferred to surgical treatment,no complications such as perforation and no death.Curative effect of Imidazole group compared with ogilvy pull is different with,a statistical significance( P ＜ 0.05 ).ConclusionEndoscopic treatment for acute non-variceal upper gastrointestinal bleeding could be affirmed,and relatively safe,little trauma,and it could be used as the first method in treating non-variceal upper gastrointestinal bleeding.