Objective To explore the contents and clinical significance of soluble intracellular adhesion molecule-1 ( sICAM-1 ) in patients with single goitre,Graves'and Hashimoto disease. Methods The contents of sICAM-1 in 100 cases of simple goiter group, Graves disease (GD) group 250 cases, Hashimot group 50 cases and 100 normal control were examined by sICAM-1 Radioimmunoassay(RIA) method,and the results were analyzed. Results There were no significant difference of sICAM-1 contents between ( 170.43 ± 34. 23 ) μg/L in normal control group and ( 182.48 ± 40.05) μg/L in simple goiter group( t = 1. 104, P ＞ 0. 05 ); The contents of slCAM-1 in GD group and HT group [( 279.93 ± 86.69) μg/L、 (250.36 ± 81.56) μg/L] were higher than the control group( t = 2.310,2. 210, all P ＜0. 05) ;The sICAM-1 contents in 3 species.methods after treatment [( 178.95 ±59.78) μg/L, ( 185.65 ±53.25)μg/L, (259.41 ± 71.46) μg/L)] were significantly lower than before treatment [(316.53 ± 66.13) μg/L, (277.79±64.30)μg/L,(285.71 ±72.14)μg/L](t=2.312,2.278,2.328,all P ＜0.05);After the Graves'patients were treated and their thyroid function were normal,their serum sICAM-1 levels( 251.92 ± 77.75 )μg/L were lower than that( 329.34 ± 90.47 ) μg/L in relapse Graves'group( t= 2.412 ,P ＜ 0. 05). Conclusion sICAM-1 RIA can be used as a parameter in diagnosing autoimmune thyroid diseases and in evaluating effects of therapy,stopping medicine or the relapse of Graves' disease.

In order to improve the result of clinical practice for undergraduate students of sto-matology, the standardized training program was carried out before clinical practice by the teaching and researching Office of Periodontology of Affiliated Stomatological Hospital of Chongqing Medical University, in this program, based on our own realities, the structure and content of teaching was designed to guide the transformation of students to doctors, collective teaching and personalized teach-ing was combined to reform the conventional model of teaching and various student-oriented teaching methods were explored, including mimic forum of disciplines, intractable case discussion, clinical practice summary, course completion test and so on, thus promoting the result of clinical practice. Be-sides, the construction of teaching staff was strengthened, and the evaluation and management system was established to ensure the teaching quality, thus summarizing a set of efficient and effective clinical teaching methods presented in this paper.

In this study ,we intended to prepare anti‐Toxoplasma gondii aquaporin (TgAQP) peptide antibody which was used to the application in the detection of the aquaporin expression and its subcellular localization of Toxop lasma gondii (T .gondii) ME49 strain .The B cell peptide antigen was designed based on the TgAQP amino acids sequence .After the pep‐tide antigen was conjugated to the KLH ,the fusion antigen was injected into New Zealand rabbits to prepare polyclonal anti‐body ,followed by identification of ELISA ,Western‐blotting and immunofluorescence assays .The ELISA showed that the titer of anti‐TgAQP antibody was about 1∶40 000 .Western blotting revealed the specific affinity of the antigen to polyclonal anti‐body at 29 .9 kDa protein T .gondii .The protein detected by the indirect immunofluorescence assays was distributed in the cy‐toplasm of the parasite .Thus far ,the anti‐TgAQP polyclonal antibody was successfully prepared ,providing a useful tool for further study of biological function and metabolic characteristics of TgAQP .

ObjectiveTo investigate the effects of the middle cerebral artery occlusion on the density of the brain surface vessels in the rat.MethodsForty one male Wistar rats with an average body weight of 170±10g were randomly divided into three groups: group A(n=3) underwent no operation, group B(n=3) underwent sham operation, group C(n=35) underwent an operation of ischemic brain injury. The right middle cerebral artery occlusion (MCAO) of group C rats were induced by 5/0 monofilament nylon suture for 2 hours. The time points of reperfusion was 1 day, 2 days, 3 days, 7 days and 14 days following MCAO. The regional cerebral blood flow in the right brain, the morphology, number, length of the right hemisphere surface vessels were measured. ResultsThe number, length of the right hemisphere vessels increased with the progress of reperfusion time. Conclusions The ischemia induced the production of vessels in the brain in the rats.

OBJECTIVETo prepare and characterize rabbit polyclonal antibodies against Toxoplasma gondii vacuolar proton pyrophosphatase type I (TgVP1).

METHODS AND RESULTSTwo synthesized peptides TgVP1-1 and TgVP1-2 as the haptens were conjugated with KLH to immunize rabbits. Indirect ELISA showed that the titers of rabbit anti-TgVP1-1 polyclonal antibody and rabbit anti-TgVP1-2 polyclonal antibody reached 1:128 000. Western blotting results revealed that both purified polyclonal antibodies could specifically bind to a purified 85 kD T. gondii protein predicted as TgVP1. The protein detected by these two polyclonal antibodies was distributed in the cytoplasm of T. gondii tachyzoite, and this distribution pattern was consistent with that of acidocalcisome.

CONCLUSIONThe peptide-based method of antibody generation is efficient and the obtained TgVP1 polyclonal antibodies possess a high specificity to facilitate further study of T. gondii acidocalcisome and the diagnosis of toxoplasmosis.

Animals ; Antibodies ; immunology ; Blotting, Western ; Enzyme-Linked Immunosorbent Assay ; Protozoan Proteins ; immunology ; Pyrophosphatases ; immunology ; Rabbits ; Toxoplasma ; enzymology