Objective To investigate the relationship between social support and state-trait anxiety in senior middle school students.MethodsA total of 165 senior middle school students received Social Support Questionnaire and State-Trait Anxiety Inventory,and social support and anxiety were compared by gender,home address and one-child family.Chi-square test and t test were used for data analysis.Results Utilization of social support showed significant difference between male and female studen(t=-1.994,P＜0.05).Significant difference of objective support existed between grade one,grade two and grade three (F=0.935,P＜0.05).Significant differences of social support(t=-2.039,P＜0.05)and subjective support(t=-2.769,P＜0.05)were found between urban and rural areas.In difierent grades,the state and trait anxiety Was significantly different(F=3.063,P＜0.05＝.There was negative correlation between social support and state-trait anxiety(r=-0.376,P＜0.05＝.ConclusionGood social support may help to reduce state anxiety among senior middle school students.

There are an increasing number of survivors of successful treatment of lymphomas over the past 30 years. Although these survivors may be cured of their lymphoma, long-term morbidity and mortality are associated with late toxicities of the treatment. Identification of these late complications will lead to strategies to manage them when they occur and hopefully decrease the risk of their development. Secondary malignancies and treatment associated cardiovascular disease are the leading causes of late morbidity and mortality.Musculoskeletal difficulties, endocrine abnormalities, including sterility and thyroid disease, and heart and lung damage, have also been seen.The late complications of primary treatment of lymphoma and autologous stem cell transplantation usually for relapsed disease are the subjects of this paper.

I-scan technology is the newly developed image enhanced endoscopy technology from PENTAX,Japan,which can visualize the capillary and the gap of glandular duct of gastrointestinal mucosa.i-scan images are as bright as conventional white-light images.Therefore,i-scan is able to observe much larger areas in a distant view compared with NBI.It has a broad application prospects.However,due to the lack of a unified diagnostic standard,the application of i-scan technology needs further study.This review summarizes the applications of high-resolution electron-staining endoscopy in the diagnosis of gastrointestinal diseases.

Objective To evaluate the value of i-Scan in the diagnosis of Barrett′s esophagus.Methods 52 patients diagnosed with Barrett′s esophagus by gastroscopies and pathological examinations were observed under the ordinary edoscopy and i-Scan respectively.Besides,the Barrett's esophageal mucosa were classified by Endo with i-scan mode, the target lesions was taken to be biopsied and pathologically examined.Results ( 1 ) In the 52 patients,mucosal lesions were found in 46 cases (88.5%) under i-Scan and 35 cases (67.3%) under ordinary edoscopy respectively,mucosal lesion detection rate in i-Scan was significantly higher than normal white mode( P<0.01).In the 33 patients which found mucosal lesions in the two modes,the definition of lesion margins,morphology of lesion cryptaeand mucosa capillaries revealed by i-Scan were superior to that by white lighted endoscopy ( P<0.05);(2) Under i-scan mode,the detection of specific intestinal metaplasia ( SIM) of typeⅣ,type V in sensitivi-ty,accuracy,specificity were respectively 90.0%,93.5%,94.4%.Conclusion i-Scan is very easy to operate and has a clear lesion of Barrett′s esophagus,which helps to target the lesion at pathological biopsy.

Objective To explore the main influence factors of ederly people's cognitive function and provide the countermeasures. Methods A cross-sectional study was performed in the elderly volunteers who were sampled from halves of the counties of 22 provinces in China.Modified minimental state examination(MMSE)scale was adopted to investigate the 6819 Chinese elderly people who were investigated in the Chinese elderly health questionnaire in 2002.Simple Chi-square test and multiple logistic regressions were applied in the analysis. Results The results showed that the perfect rate of cognition function was 85.0%in male,and 80.43%in female.The rate was 97.7%in people at age of 60-69 years,94.8%,70-79 years,85.0%,80-89 years,71.11%,90-99 years,55.7%,100-111 years,94.8%.There existed significant cognitive function differences in gender,age,education,born place,marital status,1iving status,smoking history,drinking history,physical exercise,self-satisfaction with life,affective state and healthy status(all P＜0.01).Non-conditional logistic regression analysis showed that influence factors of cognitive function of the elderly were age,education level,marital status,physical exercise and optimistic state. Conclusions The risk factors for cognitive function are aging and widowhood.Higher education,regular physical exercise,optimistic state are protective factors for cognitive function.

0.05),but these positive rates were notable decreased comparing with nPCR and immunohistochemistry techniques(P

Aim: To study pharmacokinetics of aconitine,mesaconitine and hypaconitine in rats after single oral administration of decoctions composed with Radix Aconiti Lateralis.Methods: Four groups of rats were orally administered four decoctions including decoction a(Sini decoction),decoction b(decoction composed with Radix Aconiti Lateralis),decoction c(decoction composed with Radix Aconiti Laterali and Radix et Rhizoma Glycyrrhizae Praeparata Cum Melle)and decoction d(decoction composed with Radix Aconiti Laterali and Rhizoma Zingiberis),respectively.Quantitative analysis of aconitine,mesaconitine and hypaconitine in rat plasma was achieved using a liquid chromatography-electrospray ionization/tandem mass spectrometry method.Pharmacokinetic parameters were estimated using DAS 2.0.Results: Pharmacokinetic parameters of aconitine,mesaconitine and hypaconitine were different after oral administration of four decoctions according to Radix Aconiti Laterali combined with different herbal medicines.Multiple peaks were observed in plasma concentration-time curve after oral administration of the decoction of herb couple Radix Aconiti Laterali and Radix et Rhizoma Glycyrrhizae Praeparata Cum Melle,and the results showed a delay in tmax and a prolonger in MRT0-t compared with the decoction of Radix Aconiti Latera-lis.When Radix Aconiti Lateralis was combined with Radix et Rhizoma Glycyrrhizae Praeparata Cum Melle and Rhizoma Zingiberis at the same time in Sini decoction,tmax was delayed too but MRT0-t,was shorten than that of the group of Radix Aconiti Lateralis.Conclusion: The pharmacokinetic parameters of the three compounds obtained in this work shows that the pharmacokinetics of aconitine,mesaconitine and hypaconitine were influenced diversely when Radix Aconiti Laterali was combined with different herbal medicines.

Objective To explore the significance of detecting IgH gene rearrangement in diagnosis of non-Hodgkin lymphoma. Methods By using family-specific primers mixtures (VH1,VH2,VH3) for IgH FR3A,FR2A,FR1 genes,clonal IgH gene rearrangement was detected by heminested and multiplex PCR in 44 cases of B-NHL,1 undifferentiated lymphoma,15 T-NHL and 5 lymphonode reactive hyperplasia. Results Clonal IgH gene rearrangement was detected in 36 of 44 B-NHL (positive rate 82%) by using FR3A primers,27 of 44 B-NHL (positive rate 61%) by using FR2A primers. By using FR1 family-specific primers mixtures (VH1,VH2,VH3) and JH (JHb,JHc),clonal IgH gene rearrangement was demonstated respectively in 34/33 of 44 B-NHL (positive rate 77%,75%). The total positive rate was 95% (42/44) by combined family-specific primers mixtures (VH1,VH2,VH3) of FR3A,FR2A,FR1 gene. Four of 15 T-NHL revealed clonal IgH gene rearrangement,while 5 LRH had no clonal IgH gene rearrangement. One NHL unclassified by immunohistochemical methods was classified definitely as B cell-derived lymphoma by PCR. Conclusion The detection rate of IgH gene rearrangement can be improved by combined usage of several pairs of primers,especially family-specific primers. Detecting clonal IgH gene rearrangement is significant in the procedure of differential diagnosis for B/T-NHL and reactive hyperplasia.

Uracil (I) (2,4-Diketo-pyrimidine) was isolated from the radix aconiti collected from Jiangyou region of Sichuan Province.The chemical structure of this principle was determined by elemental analysis,IR,UV,MS,'H and 13C-NMR spectral data. The experiments were made to study the effect of uracil (I) on the cardiac contractile force and beating rate of the isolated toad hearts in comparison with uracil (II) (artificial synthesis). The results indicated that the 5?mol/L of uracil (I) and uracil (II) both had the effect of increasing the amplitude of myocardial contraction (P0.05) at 3 and 5 min. When the concentration was increased to 10 and 20?mol/L, the amplitudes of myocardial contraction were more incremental and 3 min later,the estimated value of uracil (I) and uracil (II) to increase the amplitude of myocardial contraction by 50% approached to 4.17 and 4.68, respectively. As described above, uracil (I) is a new cardiotonic in Jiangyou Fuzi.

A new aporphine alkaloid, named fuzitine, was isolated from the tuber of Aconitum carmichaeli Debx. Its chemical structure was identified by the chemical, UV, IR, MS and NMR spectra analysis.