Angiogenesis is one of the effective strategies for the treatment of ischemic cerebrovascular disease, and a variety of angiogenic factors and antiangiogenic factors involved in the process of regulation. Apelin is a newly discovered peptide, ari it is the endogenous ligand of G protein-coupled receptor APJ (Angiotensin Ⅱ Type 1 Receptor-Associated Protein). Apelin and APJ express widely in rat and human hearts and brains, etc. Apelin-APJ system has a role in promoting angiogenesis. It has an important significance in the treatment of ischemic diseases. This article review the mechanisms of action and advances in angiogenesis of apelin-APJ system.

The data collected from some hospitals by searching literature, consulting experts, communicating and reviewing with doctors and database providers were analyzed with how to rationally select and use medical informa-tion proposed.

Objective It has been known that NSAIDs can inhibit the growth of tumors through cyclooxygenase, but it is unknown that whether there are other mechanisms involved. It is essential to detect the effect of indomethacin for proliferation and apoptosis in the HCT116 and explore its anti tumor mechanism. Methods Human colon adenocarcinoma cell line HCT116 was treated with different concentration of indomethacin for 24 h and CDK 2,CDK 4, Bcl 2, Bax and p21 WAF1/CIP1 protein were detected by Western blot. Results Indomethacin down regulated the expression of CDK 2, CDK 4, Bcl 2 and up regulated the expression of p21 WAF1/CIP1 , however, the expression of Bax remained unchanged. Conclusions Inhibiting proliferation and inducing apoptosis contribute to the anti tumor activity of indomethacin by down regulating the expression of CDK 2, CDK 4, Bcl 2 and up regulating the expression of p21 WAF1/CIP1 .

Objective To improve the understanding of medical literature databases in order to correctly select and use them. Methods The use of 4 common medical literature databases in China was comparatively analyzed. Re-sults Repetitive and incomplete literature coverage, imperfect key retrieval techniques, insufficient retrieval func-tions, loose design, and unscientific retrieval systems were the major problems of the 4 commonly used Chinese medical literature databases. Conclusion The user should know the weak points of different databases and selectively use them. Standardization and quality control of medical literature databases should be further improved.

Objective To observe the effectiveness of routine nursing plus foot exercise on the peripheral neuropathy and plantar pressure in patients with diabetic foot.Methods Toally 100 patients with diabetic foot were randomly divided into 2 groups.On the basis of routine nursing care,50 patients in the observation group were given foot exercises for 12 weeks,50 patients in the control group were given routine nursing only.Before and after intervention,the Toronto clinical scoring system (TCSS),left and right foot peak pressure variation were observed.Results Before intervention,there was no statistical difference between the two groups' TCSS sore and the peak pressure of left and right foot (P ＞0.05).After intervention,the observation group's average total score of TCSS was lower,there was significantly different between two groups (P＜ 0.001).The peak pressure of left and right foot is lower in the observation group,the difference was statistically significant (P ＜ 0.05).Conclusion Foot exercises is worthy of clinical promotion,because it can improve the peripheral neuropathy of patients with diabetic foot,so as to reduce the plantar pressure,reduce the pain of patients and improve their life quality.

Objective To explore the levels and clinical significance of anti-beta 2-glycoprotein 1 antibodies (β_2GP1), matrix metalloproteinase 9 (M M P-9) in the plasma of children with Kawasaki diseases (KD). Methods Serum level of anti-β_2GP1 antibody and MMP-9 was measured in 47 children with KD by ELISA, and the data was analyzed using SPSS11.5 software. Thirty age matched children with infectious diseases(sepsis or pneumonia), exclusive of heart, liver, kidney, blood diseases and autoimmune diseases such as rheumatoid were chosen in the fever control group. Results Coronary artery lesions (CAL)were found in 17 children of KD group (17/47) by Doppler ultrasound examination. Significant differences (P < 0.05) of serum level of anti-β_2GP1 antibody was showed between KD group ((7.46 ± 2.13) U/ml)and the control group ((4.38 ± 0.43) U/ml) ; serum level of MMP-9 was (886.62 ± 92.72) ng/ml and (460.06 ± 179.59) ng/ml in KD group and the control group respectively, with significant difference between the two groups(P < 0.05). In KD group, levels of anti-β_2GP1 were (8.83 ± 0.89) U/ml among children with CAL and (6.18 ± 1.42) U/ml among children without CAL, serum level of MMP-9 was (948.62 ± 81.76) ng/ml and (872.00 ± 34.74) ug/ml respectively, with significant differences(beth P < 0.05). In children with KD, the serum levels of anti-β2GP1 antibody and MMP-9 were significantly correlated (correlation coefficient r = 0.665). Conclusions Serum levels of anti-β_2GP1 antibodies and MMP-9 increased in the acute phase of KD, and were significantly higher in those KD children with CAL.Anti-β_2GP1 antibodies and MMP-9 may play a role in the pathogenesis of KD, and can be used as an important serological indicator of KD with CAL.

In recent years, the studies of the treatment of cerebral infarction have turned to the areas of neuroprotective agents. The promotion of angiogenesis after stroke will become one of the novel approaches after cerebral infarction. Studies have shown that the activation of the kallikrein-kinin system (KKS) after cerebral infarction may promote angiogenesis after cerebral infarction, improve the neurological deficits, and reduce the mortality and disability. This article reviews the regulatory mechanisms of KKS in the angiogenesis after cerebral infarction.

Objective To investigate the clinical effect of azithromycin on ankylosing spondylitis (AS). Methods Sixty-four AS patients with active disease were enrolled in this study. Among them, thirty-two AS patients (treatment group)received Azithromycin treatment at a dose of 0.5 g once a day for a period of 5~7 days , and another thirty-two patients receiving conventional treatment served as control (control group). BASDAI, CRP and ESR served as the disease activity evaluation index. Results Activity indexes in two groups of in the first 4~ 20 weeks of the treatment were decreased compared with those before the treatment (P < 0.05), while a rise was found in the 20 ~ 24 week and activity indexes gradually returned to pretreatment levels. At 0 ~ 16 weeks , the disease activity index of treatment group was below normal levels but that of control group was higher than the normal level with significant difference (P < 0.05). Conclusion The treatment of Azithromycin can control the disease activity of AS in the long term, which would be a new proposal in AS treatment.

AIM:To investigate NF-?B p65 activation and I?B-? expression in keloid fibroblasts(KFB)and normal skin fibroblasts(NSF)stimulated with TNF-? and to explore the underlying molecular pathogenesis of keloid formation.METHODS:Primary KFB was cultured.The location of NF-?B p65 and I?B-? in KFB and NSF at quiescent condition and the nuclear translocation of NF-?B p65 after TNF-? stimulation were observed by immunofluorescence technique.NF-?B p65 DNA binding activity was detected with TransAMTM NF-?B p65 kit.The I?B-? protein level was determined by means of Western blotting technique.RESULTS:After stimulated with TNF-?,NF-?B p65 translocated into the nucleus.NF-?B p65 DNA binding activity increased to its maximum at 1 h and was dropped to normal at 4 h.TNF-? induced most degradation of I?B-? at 15 min and became detectable in cytoplasm after 4 h.KFB showed more sensitive ability to TNF-? stimulation than NSF.CONCLUSION:NF-?B may play a role in keloid pathogenesis.

Objective To study the application value of diluted serum and EXcelland MVS in the linear performance verifica-tion.Methods The series of concentration samples were prepared by mixing the collected low value mixed serum and the low value mixed serum diluted with 2-3 times of deionized water and the same high concentration serum for conducting the linear experi-ments.The linearity of the experimental results was statistically judged by the two softwares of EXcelland MVS.Results The 3 diluted serum experiments were linear by the judgement of the two softwares;in 6 experiments,the original serum experimental re-sults of CREA were linear by the judgement of EXcelland nonlinear by the judgement of MVS,but the decisive concentration lev-els,the differences of the two regression equations were -2.02 μmol/L and 4.23 μmol/L respectively,which were less than 1/9 of CLIA′88 maximum allowable error under the two concentrations(26.52 μmol/L and 39.78 μmol/L),the remaining 5 experiments were linear by the judgement of the two softwares.Conclusion The low value serum appropriately diluted by deionized water does not affect the linear performance verification;in the linear performance verification,EXcellcan meet the verification needs and MVS is more strict in judging linearity.