Antimicrobial peptides ( AMPs) are a kind of micromolecular peptides with antibacterial , antivirus and anti-tumor activities.Unlike conventional antibiotics , acquisition of resistance by a sensitive microbial strain against AMPs is surprisingly improbable .AMPs are not widely used clinically due to their toxicity , susceptibility to proteolysis and high manufacturing cost .Researchers have obtained some AMPs with high activity and low toxicity by structure modifications . The molecular design of AMPs as well as their development in the future are reviewed .

Objective To study the role of Ki- 67 and anti- cytokeratin antibody 34?E12 in the differential diagnosis of prostate cancers. Methods 24 cases of prostate carcinoma and 30 cases of benign prostate hyperplasia were studied with immunohistochemical technique(SP). Results In 24 prostate cancers the average Ki- 67 index was 0.45?0.21, and that in 30 cases of benign hyperplasia was 0.12?0.09, the expression of Ki- 67 is higher in prostate carcinoma than benign prostate hyperplasia, there was static significance (P

Objective To review the epidemiology, etiology,pathology,clinical presentation,diagnosis and treatment,recurrance and prognosis of Mondor disease.Methods Literatures on Mondor disease were reviewed,and our study of Mondor disease was also included.Results Mondor disease is difficult to diagnose,but is with good prognosis in most patients.It's unclear whether Mondor disease is associated with the etiology of breast cancer.Conclusion The diagnosis and therapy of Mondor disease are important,especially when it is accompanied with breast cancer.

Objective:To investigate the correlation of dentofacial structure and the sagittal size of the upper airway in youthful nonsnoring men with malocclusion.Methods:Lateral cephalometry was carried out in 52 nonsnoring males with malocclusion. The average age of the patients was 19.23 years, with a range of 18 to 24 years. Stepwise regression analysis was used to relate those cephalometric parameters to the sagittal airway size at different levels.Results:SNB angle,S-N length and H-C_3 length were the related variables to superior posterior airway space(SPAS). H-C_3 length,SNB angle and L1-MP angle were the related variables to middle airway space(MAS). SNB angle,H-C_3 length,S-N length and L1-MP angle were the related variables to inferior airway space(IAS).Conclusion:The sagittal upper airway size in youthful nonsnoring men with malocclusion is correlated to the dentofacial structure and the hyoid position.

Objective: To study the affection of immobilization stress (IMS) on mice splenic lymphocytic function. Methods:The proliferation of lymphocytes was examined by MTT, and intracellular[Ca2+] was examined by fluorescence probe, Fura-2/AM, membrane of lymphocytes IL-2 receptor(mIL-2R) and cell cycle were examined by flow cytometry. Results;The end of IMS was found to be the lowest proliferation response after IMS, at the same time mIL-2R expression was impaired. Analysis of cell cycle showed the proliferation of splenocytes from IMS mice might be bloched in G2/M phases. Intracellular[Ca2+] was significant increased after IMS. Conclusion: IMS may induce the disfunction of lymphocytes and immunosuppression.

Uterine natural killer cells (uNK) are distinct from peripheral blood NK (pbNK) cells,which constitute up to 70％ of the decidual leukocyte population in the first half of pregnancy,and are considered to have a cytokine-secreting role rather than cytotoxic function.It plays an important role in trophoblast invasion and uterine spiral artery remodeling.As a result of imbalance of uNK cells,pathological pregnancy appeared.Herein,the origin of uNK cells and its function in pregnancy were veviewed.

The formation of advanced glycosylation end products (AGEs) is enhanced in diabetes mellitus, closely associated with diabetic vascular complication. In this review, biochemical properties and structures of AGEs,AGEs receptors and binding proteins ,pathogenic properties of AGEs,deposition and turnover of AGEs, inhibitors of AGEs were summarized.

OBJECTIVE:To analyze the current status of counterfeit in China and indicate the difficultie of identification.METHODS:The main characteristics of counterfeit drugs were discussed by representative cases.RESULTS & CONCLUSION:It is suggested that the department of the drug administrave should establish a more scientific,reasonable standardization procedure of conterfeit drugs identification aiming directly at the characteristics of counterfeit drugs,which was more sufficient,intensive and practicable legal evidence for defining,fighting and preventing counterfeit drugs.

Objective:To investigate effectiveness of exposure and ritual prevention of patients with obsession-compul-sive disorder(OCD),so as to provide references for professionals in clinical psychology.Methods:One female patient with severe OCD received 3 weeks intensive exposure and ritual prevention treatment.In order to investigate the effectiveness,she completed Symptom Check List 90 and Yale Brown Obsessive Compulsive Scale(SCL-90 and YBOCS) at pre-treat-ment,mid-treatment and post-treatment.Results:After treatment,the patient's scores of questionnaires reduced,such as score on YBOCS reduced from 38 to 9.She reported that her washing time reduced obviously and her own measure of dis-tress index reduced.Conclusion:Exposure and ritual prevention could treat the patient with OCD effectively.Her distress reduced and life function was improved.

Objective\ To find out the relationship between the periaqueductal gray (PAG) and the audiogenic seizures. Methods The neuronal(Nissl)staining method and the immunocytochemical method were used to identify the Fos postive neurons in the PAG of the audiogenic seizures prone rats(P77PMC) after audiogenic seizures. Results There were lots of Fos positive neurons in the dorsolateral, dorsal and caudoventrolateral subdivisions of the PAG in P77PMC rats two hours post seizure, and the percentage of Fos positive neurons was significant higher than that of rats in control groups. Conclusion A large number of neurons in the PAG of the audiogenic seizures prone rats participated in the process of the audiogenic seizures.