The production of IL-2 by peripheral blood lymphocytes from patients with Ankylosing Spondylitis (AS)and Rheumatoid Arthritis (RA) was compared with that of healthy controls. Patients with AS and RA showed a significant overproduction of IL-2.Membrane-bound IL-2 receptor was recognized by monoclonal anti-Tac antibody by using a flow cytometry. There was a marked increase of IL-2 receptor in patients with RA, while the level of IL-2 receptor in patients with AS was comparable to that of normal controls. The results suggested that there was obvious abnormalities of membrane-bound IL-2 receptor expressing and production of IL-2 in patients with AS and.RA which may contribute to the pathogenesis of these diseases.

Acquired immunodeficiency syndrome (AIDS) is a serious infectious disease caused by human immunodeficiency virus (HIV). Increasing cases of HIV infection have been detected in adolescents. Intravenous drug abuse and sexual behavior, which are affected by various individual and environmental factors, are the major ways of HIV infection. The current situation and influential factors of HIV infection in adolescents are introduced in this paper.

ObjectiveFrom the view of the frequence of codes applying,investigate the situation of the Tenth Revision of the International Classification of Disease Clinical Modification of Beijing and to support the further development and application.MethodsFigure out the difference of the frequence of codes between before and post application of coding on clinical modification,to compare and make analysis for them.Results Got lists of percentage periods frequence of codes on classification of disease calculated from all secondary and above level hospitals in Beijing in the year of 2006,2007 and 2008.Conclusionthe Tenth Revision of the International Classification of Disease Clinical Modification of Beijing is well compatible with WHO ICD-10 on the level of applicable codes set; the refine work is effective and balance for codes applying; the localization should be done first before applying ICD-10.

Objective　To better understand the clinical characters of juvenile onset spondyloarthropa-thies (JSpA).Methods　The clinical and laboratory data of 190 in-patients with JSpA were analyzed and the diagnosis,classification and differentiation of juvenile onset arthritis were discussed.Results　Among these 190 patients,163 were male,with a male to female ratio 6∶1.Of them 92.1% had the disease after the age of 8.Peak of age at onset was 12 to 15 years;157(82.6%) patients had peripheral arthritis and only 23(12.1%) patients felt low back pain at onset.During the disease course, peripheral arthritis was found in 187(98.4%) patients and the history of low back pain or buttock pain was recorded in 123(64.7%).The interval between peripheral arthritis and low back pain was from 0 to 20 years,with an average of (3.2±4.5)years.Extra-articular features including enthesitis in 67(35.3%)patients,dactylitis in 20(10.5%),iritis in 9(4.7%) were observed.HLA-B27 was positive in 87.9%(160/182) patients.Sacroiliitis on X-ray was observed in 76.0%(136/179) patients,and 106(55.8%) patients were diagnosed juvenile ankylosing spondylitis (JAS) according to 1984 New York modified criteria.The average disease course in JAS was (6.3±6.2) years,longer than that in JSpA (P＜0.01).Conclusion　The concept of JSpA is helpful to early diagnosis and treatment of juvenile onset arthritis.The JSpA are characterized by asymmetric lower limb predominant oligoarthritis,a wide spectrum of extra-articular features,presence of HLA-B27 and familial history of SpA or psoriasis.It will take an average of 6.3 years for JSpA patients to fulfill the diagnostic criteria of adult AS.

Objective　To measure the levels of urokinase-type plasminogen activator (uPA) and its receptor (uPAR) in synovial fluid and plasma of patients with RA and investigate its clinical significance.Methods　By using ELISA sandwich method,the levels of uPA and uPAR in plasma from 46 patients with RA and 8 with osteoarthritis (OA) were measured.Those in synovial fluid (SF) from 14 patients with RA,and plasma from 12 healthy subjects were measured as controls.Results　The concentration of uPA and uPAR in SF from patients was significant higher than that in their plasma (P＜0.001,P＜0.01),and the concentration of uPA and uPAR in plasma of RA was also much higher than that in plasma of OA patients (P＜0.05,P＜0.000 1) and healthy subjects (P＜0.000 1,P＜0.001).There was no significance between plasma levels of RF＋ and RF－ in RA patients.The concentration of uPA and uPAR of plasma in RA correlated positively with CRP,RF and the number of swelling joints.Conclusion　The levels of uPA and uPAR in SF and plasma are useful parameters for monitoring disease activity of RA.These findings suggest that the uPA and uPAR genes may play an important role via proteolytic damage of the extracellular matrix during the development of RA.

Objective To investigate the relationship of diabetic nephropathy with serum endothelin-1(ET-1) and C-reactive protein(CRP). Methods Levels of blood pressure, glucose, lipid, creatinine,ET-1,CRP and urinary albumin excretion(UAER) were measured and calculated in 86 patients with type 2 diabetes mellitus(T2DM)and 30 healthy subjects. Results Serum ET-1 and CRP were significantly higher in T2DM than in control(P<0.05，P<0.01).Serum ET-1 and CRP were increased with increment of serum creatinine and UAER(P<0.05，P<0.01). Conclusions Serum ET-1 and CRP may be involved in the development and progression of diabetic nephropathy.

Objective: To develop a computer-aided cephalometric analysis system running under the environment of Windows 9X/NT and based on screen input of landmark and contour line. Methods: The analysis system was made with object-oriented method, the program was written with Visual Basic 6.0 and Access 8.0, and the data on the screen was converted. Results: Cephalometric landmark points and contour lines were input through computer screen, then analyzed (22 modes), superposed and managed statistically. The system showed the advantages of using popular hardware, good compatibility, easy expansion, friendly user interface, simple input of landmark points, artful input of cephalometric contour, intuition and diversification of superposition, deversification of statistic analysis, integrated information collection and convenient search. Conclusions: The system can be used in clinic and research.

The important difference between post-graduate and undergraduate education is to train their reseach ability,which is very important especially to the post-graduate students of basic medicine who will be researchers.The problem in training research ability of post-graduate was studied in this paper and solution plan was put forward.

Aim: To investigate the expression and the regulation of Bim protein in leukemic cell of patient with chronic myelognous leukemia(CML). Methods: The primary leukemic cells from the peripheral blood or bone marrow of patients with CML were isolated and cultured. The expression of Bim in the present or absence of ima-tinib(BCR/ABL inhibitor) was detected by the Western blotting, immunohistochemical analysis and real-time quantitative PCR. Results: Bim was consecutively expressed in normal bone marrow, but significantly decreased in the bone marrow of patients with CML( P < 0. 05). Imatinib significantly enhanced Bim mRNA transcription and expression in the manner of time- and dose-dependence. Moreover, there was reverse correlation between Bim protein level and the percent of leukemic cell in bone marrow( r =0. 849 1, P <0. 05). Conclusion: Bim is the Bcl-2 family pro-apoptitic factor. The decreased expression of Bim could be vital in the CML, Bim protein up-expression following the suppression of BCR/ABL might be of importance in investigation of the Bim-induced ap-optosis for potential clinical therapy.

Objective As a special type of chronic pancreatitis, autoimmune pancreatitis ( AIP ) is gradually being recognized?In 2001,researchers found that serum IgG4 levels were significantly increased in AIP patients,2% of chronic pancreatitis was 1?AIP; 1?AIP was considered a systemic disease associated with IgG4?So far,a number of autoimmune antigens associated with 1?AIP have been identified,but the role of IgG4 in the disease is certain,because the pathogenesis of the disease is not sure,the diagnosis and treatment of AIP is not optimistic.