Objective　To evaluate the effect of vascular endothelial growth factor (VEGF) on tumor angiogenesis, and its usage in tumor therapy. Methods　The recent literatures about VEGF and angiogenesis were reviewed and analyzed. The advances of VEGF study were summarized. The effects of anti-angiogenesis in tumor biological therapy were introduced.Results　Angiogenesis had been identified as an important factor for promoting tumor growth. VEGF was a basic and pivotal factor in tumor angiogenesis. The anti-angiogenesis treatments aimed at VEGF, including the applications of VEGF inhibitor and gene therapy of adenovirus medium, had got great progress. Conclusion　 VEGF is a leading factor of tumor angiogenesis, the anti-angiogenesis therapy aimed at VEGF has probably provided a new chance to malignant tumor treatment.

Objective To investigate the characteristics of rifampin(RFP) and isoniazid(INH) resistance genes of Mycobacteri-um tuberculosis in Ganzhou region .Methods Gene chip technology was employed to detect common resistance genes in 130 sputum samples with smear positive acid-fast staining and Ct values less than 30 .Results Among 130 samples ,34 samples(26 .2% ) were found resistance ,including 30 samples(23 .1% ) resistant to RFP ,26 samples(20 .0% ) resistant to INH ,and 21 samples(16 .2% ) resistant to both .The mainly mutation of RFP resistant gene was rpoB gene 531(C→ T ) ,accounting for 42 .4% ,while the mainly mutation of INH resistant gene was katG gene 315(AGC→ACC) ,accounting for 65 .4% .Conclusion The mutation charateristics of RFP and INH resistance-associated genes of Mycobacterium tuberculosis in Ganzhou region is consistent with domestic and foreign research .

Objective To summarize the experience in diagnosis and treatment of primary splenic neoplasm (PSN). Methods The clinical data of 31 patients with PSN treated in our hospital were retrospectively analyzed. Results Amongst the patients, 25 were diagnosed as PSN postoperatively. Fifteen out of the 19 patients with benignancy were treated with splenectomy, and the others underwent partial splenectomy or tumor excision. Eleven out of the 12 patients with malignancy received splenectomy (including two by excision of pancreatic body and tail), and the other one underwent biopsy alone. The pathological types were as follows: varieties of cyst in 11, angiocavemoma in 4, inflammatory pseudotumor in 2, cavernous lymphangioma in 1, cystic degeratin of liomyoma in 1, malignant lymphoma and lymphsarcoma in 6, hemangiosarcoma in 3, fibrosarcoma in 1, liomyosarcoma in 1 and malignant fibrous histiocytoma in 1. Three patients with malignancy survived for 5 years. The reason was that they received radical splenectomy in combination with chemotherapy or radiotherapy and immunotherapy. Conclusions PSN should be diagnosed mainly according to clinical manifestations and image examination. The differentiation between benignancy and malignancy depends on CT, hemangiography and determination of seros AKP and ? GT levels. Early diagnosis, radical operation and comprehensive treatment are important for improving the prognosis of PSN.

Objective Making the fusion protein of IgG-binding peptide with enhanced green fluorescent protein(EGFP) and determining its bioactivity.Methods The enhanced green fluorescent protein(EGFP) gene was cloned into pEZZ 18 vector containing ZZ peptide gene to construct expression vector pSpA-EGFP-His.The fusion protein was expressed in E.coliDH5? and its bioactivity was detected by competitive ELISA and fluorescence properties.Results The fusion protein migrated at approximately 42kD in SDS-PAGE,which correspond to the theoretical molecular weight.The spectra of SpA-EGFP fusion protein was similar to what was reported.SpA-EGFP competed with SpA-Peroxidase to bind IgG.Conclusion The plasmid pSpA-EGFP-His correctly expressed in E.coli.The fusion protein retains the bifunctional effects of EGFP and IgG-binding activity.

Objective To study the regulating roles of PAI 2 in the differentiation mechanism of the human epidermis. Methods Human skins were take from the early, middle and late human embryos respectively and observed with immunocytochemistry and in situ hybridization techniques. The cell culture and dot blot were also used in the observation of the materials from late embryo. Results 1 PAI 2 exhibits a very high experssion in the development of embryonic period, with the highest level in the middle embryonic phase while the transcripts of PAI 2 still keep a rather high level in the late human embryonic stage. 2 PAI 2 is mainly localized in the superficial, more differentiatied layers of the epidermis.3 PAI 2 is localizated in peripheral cytoplasm of the vitro or vivo keratinocyte.Conclusion PAI 2 is involved in the regulation of the keratinocyte differentiation. [

Objective To explore the expression of plasminogen activator inhibitor-3 (PAI-3) in normal adult skin. Methods Immunohistochemistry and RT-PCR were used to detect the expressions of PAI-3 and uPA. Results mRNA of PAI-3 and uPA were detected. PAI-3 was mainly expressed in stratum basale, stratum spinosum and stratum granulosum, and its expression enhanced in the well differentiated keratinocytes of the epidermis. uPA was located in basal layer. Conclusion PAI-3 exists in normal adult skin and is related with the differentiation of epidermal keratinocytes.

Objective To study the changes of ventilatory function of young soldiers coming from different regions during cold - tol-erance training. Methods The recruited young soldiers were divided into 2 groups:Group Ⅰ (50 coming from the northern region)and group Ⅱ (50 coming from the southern region) . According to the new training outline of cold -tolerance in winter,their ventilatory func-tions were tested before training and 60 days after training. Ventilatory functions were compared between smoking and non - smoking sub-jects. Results 25% forced expiratory flow (FEF25%) , 50% forced expiratory flow (FEF50%) and 75% forced expiratory flow (FEF75 %) were significant different between two groups before the course of training (P < 0.05). After 60 days, ventilatory functions of two groups were improved significantly as compared with that before training (P <0.01 ,P <0.05). There was no significant difference in ventilatory between two groups after 60 days of training (P > 0.05). There was significant difference in partial small airway function be-tween smoking and non - smoking subjects. Conclusion Cold air could decline the small airway function of soldiers coming from south-ern region before training. Cold -tolerance training has significant influence on soldiers' ventilatory function. Long- term and heavy smok-ing could decline the small airway function.

0.05), but the values of ET and TNF in the CJ group were significantly lower than those in the EBD group (P

Objective To observe the effect of fluoxetine on the depression neurologic impairment and activity of daily living after cerebral infarction.Methods 80 patients with acute cerebral infarction following depression were randomly divided into treatment group and control group, 40 cases in each group. Two groups were assessed with Modified Edinburgh-Scandinavia Stroke Scale(MESSS), Hamilton Depression Scale(HAMD) and Modified Barthel Index(MBI) before and after treatment.Results There were no significant difference between the two groups before treatment in HAMD, MESSS and MBI（P＞0.05）, while there were significantly different between the two groups in HAMD, MESSS and MBI 6 weeks after treatment（P＜0.01）. Conclusion Fluoxetine can alleviate depression of patients with acute cerebral infarction and improve the symptom of neurological function and the activity of daily living.

Objective To summarize the clinical efficacy of Millikan's modified modality using tension-free mesh-plug inguinal herniorrhaphy. Methods A retrospective study was performed in 185 cases with in-guinal hernias. They received surgical treatment using Millikan's modality in our hospital from Jan. 2005 to Dec. 2006. Results There were 184 males and 1 female in these patients with a average age of 47 years ( range 32 - 75 years). Among them, 7 cases had bilateral hernia. The mean operative time of each hernia was 49 min (range 30 -70 min), and the average postoperative hospital stay was 5. 1 days (range 3 - 18 d). The complication rate was 10. 8% (20/185). All patients had no recurrence after following-up over 24 months. Conclusion Millikan's modified mesh-plug hemioplasty is a safe and effective modality in the pri-mary inguinal hernia repair, and has fewer complications and lower recurrence rate.