Humans ; Psychological Tests ; Rhinitis, Allergic ; Rhinitis, Allergic, Perennial ; psychology

Allergens ; immunology ; Asthma ; therapy ; Desensitization, Immunologic ; Humans ; Practice Guidelines as Topic ; Rhinitis, Allergic, Perennial ; therapy

Asthma ; diagnosis ; therapy ; Humans ; Practice Guidelines as Topic ; Rhinitis, Allergic, Perennial ; diagnosis ; therapy

Objective:To evaluate the changes in the transverse dimension and the perimeters of the maxillary archs produced by 3 self-ligating appliance systems during the leveling and aligning phases. Methods: 45 patients who had class I skeletal pattern and upper arch crowding 3-6 mm were divided into 3 groups with 15 subjects in every group. The dental casts were analyzed. Results: Statistically significant increases were recorded of all dentoalveolar widths (with the exception of intermolar width measured lingually) and arch perimeters. The increase in arch perimeter showed a significant negative relationship with the individual perimeter of the maxillary arch before treatment. No significant change was found in arch depth. Conclusion: The self-ligating appliance systems produce statistically significant increases in the transverse dentoalveolar width and the perimeter of the maxillary arch during the leveling and aligning phases of treatment.

Chief Physician WANG Hui-reng is one of the second batch of national prestigious TCM experts. He has been engaged in medical services over 40 years and is adept in preventing and treating the chronic obstructive pulmonary disease (COPD) under the direction of prophylactic treatment, which emphasizes the control of risky factors of COPD, striving for protecting the healthy body, preventing the transmission of the disease and the recurrence after healing.

Objective: To establish a HPLC method for determination of Baicalin in Xiaochaihu Tablet. Method: HPLC was used with C18 column, CH3OH - H2O - H3 PO4 (42: 58: 0. 2) as mobile phase and detection wavelength at 280nm. Results: Baicalin showed a good linear relationship at the range of 0. 2 - 1. 0ug. The average recovery was 98. 01% and RSD was 1. 07 %. Conclusion: This method is simple and accurate, and can be used for the quality conltrol of Xiaochaihu Tablets.

Gene expressions of interleukin-6 receptor subunit gp130 and gp80 were investigated by competitive RT-PCR in the rat model of osteoporosis. A significant increase in expressions of gp130 and gp80 was found in bone marrow of osteoporotic rat, this change may be a possible mechanism in osteoporosis due to loss of estrogen.

Objective:To study the mechanisms of chronic injury in heart allograft with chronic rejection.Methods:A model of cardiac chronic rejection in the rat based on tolerance induced through donor specific blood transfusions was used.The subpopulation and the distribution of infiltrating cells and the expression of adhesion molecule and growth factors were studied by immunohistochemistry and Northern blot analysis in the chronic rejection model.Results:Infiltrating cells were predominantly T lymphocytes and macrophages,mostly evident in the interstitial,subendocardial and perivascular areas.Allografts were demonstrated significantly elevated number of CD45+,CD4+,CD8+,TCR+,CD45RB+ cells,macrophages(ED_1) and NK cells at both 3 and 6 months compared with normal rat hearts and isografts at 3 months.Damaged areas also were observed expression of the adhesion molecules ICAM-1,LFA-1,basic fibroblast growth factor (bFGF) and transforming growth factor(TGF-?1).Northern blot analysis of total RNA,showed 5 to 6 fold upregulation of TGF-?1 mRNA in the chronic rejection model compared with normal rat hearts.Conclusion:These results suggest that T lymphocytes and macrophages play a central role in the development on chronic rejection and the increased expression of ICAM-1,LFA-1,bFGF and TGF-?1 in this model supports the involvement of these adhesion molecules and growth factors in the development of cardiac allograft vasculopaphy.

Objective To evaluate the clinical value of dual-energy subtraction digital radiography in diagnosing the pulmonary nodulesand calification in nodules.Methods Using American GE Revolutln DR-XR systems,All 80 patients were examined by dual-energy.Tissus images、bone images and the original digital radiographic images were obtained.Dual-energy digital subtraction images were compared with the original digital radiographic images.Results Of 186 pulmonary nodules proved by CT,126(94 uncalified and 32 calified)were detected by tissues images and bone images and 109(83 uncalified and 26 calified)were detected by the original digital radiographic images.Conclusion Dual-energy subtraction imaging is superior to the original digital radiographic images in detection of pulmonary nodules and calification in a nodule.Dual-energy subtraction images can act as a complement for the original digital radiographic images.

Objective To study the effects of the early diagnosis and treatment of sleeve fractu re of patella in children.Methods The retrospection study was done to a nalyse the effects of the diagnosis a nd treatment of ten samples of sleeve fr acture of patella in our hospital fro m 1993to 2001.Results The diagnosis was confirmed by the characteristic s of the tension swelling of the knee,high position of the patella and a sle eve fractured fragment in the patella.T he operations were the main initial t reatment to regain the proper reduction.After 4weeksfixation the patients did knee exerc ises.And the curative effects were q uite good.Conclusion The sleeve fracture of the patella in children is easy to be misdiagnosed o r missed because of the cartilage.So it is the more important to be able to con duct an early diagnosis and treatmen t for the better prognosis.