0.05). The level of serum IL-8 and expression of TNF ? in the colonic mucosa decreased at the 7th day ( P

Objective:To study the expression of P selectin in the colonic mucosa and on surfaces of platelets in circulation, and determine its association with IL 8 and TNF ? in trinitrobenzene sulphonic acid (TNBS) induced colitis in rat, in order to investigate the effects of P selectin on inflammation and thrombosis in inflammatory bowel disease Methods:TNBS was instilled into the colon of the rats to induce colitis Animals were sacrificed at the 24th hour, the 1st and the 2nd week after production Blood and colonic tissues were obtained P selectin on the platelets were detected by radioimmunoassay IL 8 in serum was detected by ELISA method Expression of P selectin and TNF ? in colonic mucosa were assessed with immunohistochemistry Results:P selectin in mucosa was increased in different time points compared with control group The positive expression was above 50% P selectin on the platelets wasn't increased at the 24th hour, but increased at the 1st and 2nd week (P

Objective To review physical examination data of farmers and provide suppoa for the establishment of a proper health management model.Methods More than 3700 farmers living at 11 villages of Xihongmen County in Daxing District of Beijing received healthcare education and essential physical examination from 2007 to 2008.The participants were also required to fill in a health questionnaire in 2008.Results In blood pressure and lipid profile measurement,statistical difference in body mass index was found between the farmers and healthy ubran residents (P<0.05).Conclusion Effective health management models should be explored and established in consideration of the characteristics of the farmers.

The corneal transparency is one of the important basic conditions for realizing normal physiological functions of visual organs. Also corneal endothelial cells are important conditions for maintaining normal corneal transparency. Therefore, only to ensure the morphology and physiological integrity of the corneal endothelial, can have normal vision. However, intraocular surgeries inevitably cause damage to corneal endothelial cells. This paper will review the effects of glaucoma surgery on corneal endothelial cells.

Asthma ; diagnosis ; Child ; Humans ; Perception

Objective To summarize the experience on diagnosis and treatment of splenic neoplasm. Methods Clinical data of 40 patients with primary splenic space occupying lesion treated in our hospital were retrospectively analyzed. Results Thirty four out of the 40 cases were diagnosed as primary splenic neoplasm preoperatively. The detectable rate of B-US was 94%, and that of CT was 96%. The discrimination rate of benignancy and malignancy by CT was 84%. Serum AKP and ?-GT were significanfiy increased in most of the malignancies. Seventeen among 22 cases with benignancy were treated by splenectomy, and the others underwent partial splenectomy or tumor resection. Sixteen of 18 patients with malignancy underwent splenectomy, and two did biopsy. Pathology revealed cysts in 13, angiocavernoma in 4, inflammatory pseudotumor in 3, caverous lymphangioma in 1, and cystic degeneration of liomyoma in 1; malignant lymphoma and lymphsarcoma in 9, hemangiosarcoma in 3, and fibrosarcoma, liomyosarcoma, malignant fibrous histiocytoma in 1 each. Three cases with malignancy have survived more than 5 years. Conclusions Splenic neoplasm is diagnosed mainly according to clinical manifestation and image examination. The discrimination of benignancy and malignancy depends on CT, angiography, and serous AKP and ?-GT level. Radical operation and complex treatment could improve the prognosis of splenic malignant tumor.

The potential of Rhizobium sp. N613 to produce the exopolysaccharide (REPS) was studied in this paper. Using an orthogonal design in a flask-shaker culture system, the fermentation medium and conditions of synthesizing REPS were optimized. Based on these results, the fermentation kinetic parameters were obtained in the batch fermentation with a 10L fermentor. The REPS yield of 11.31g/L was achieved by metabolic regulation during 40 h fed-batch fermentation. Transplanted tumor models of sarcoma 180 in mice were used to evaluate the anti-tumor effect. The result of anti-tumor activities showed that inhibition rate was 53.40%, when dose of REPS was 5mg/kg. These results indicate that REPS has the following properties: the short duration of fermentation, the high yield, the low cost, the effective immunocompetence and thickening. Thus, REPS has the value of development and application.

OBJECTIVE To explore the valuable information for studying human nasal mucociliary transport system by measuring the nasal ciliary beat frequency(CBF)in vitro.METHODS CBF of cultured human nasal epithelial cells was measured by highspeed digital microscopy in HBSS.RESULTS CBF of nasal epithelial cells from inferior turbinate and uncinate process of same patient has no significant difference in vitro(t=-0.087,P=0.931).CBF of normal mucosa and uncinate process from patients of sinusitis has no significant difference in vitro(t=0.419,P=0.678).CONCLUSION CBF of nasal mucosa of sinusitis can replace the CBF of normal nasal mucosa in vitro for for nasal ciliary movement studying.Because the mucosa of uncinate process is easier to obtain,it can replace the mucosa of inferior turbinate for cell culture in vitro.

AIM:To study the visual acuity and refractive status of students pupils and middle school students in Shenzhen, and to provide a scientific basis for the prevention and control of myopia.
METHODS:A cluster sampling method was used to select five primary school students(6 737) and three junior middle school students(1 925) from Shenzhen. The visual acuity, anterior segment, fundus, eye position, and refractive status were measured. Information on associated factors for poor vision were also obtained using a questionaire. The risk factors of poor vision and the rate of myopia between grade or gender were analysed by Chi-square test.
RESULTS:The rate of poor vision was 67. 0%. Female, family history of high myopia, long time of continuous look near, short time of outdoor activities were the main risk factors. The rate of emmetropia, hyperopia, astigmatism and myopia were 15. 1%, 11. 3%, 11. 0% and 62. 6% respectively. Emmetropia, hyperopia and astigmatism incidenece rate decreased with age growing, but myopia incidence rate was increased. There were significant differences between adjacent two grades in myopia(χ2=7. 338-45. 018, P<0. 05 ) except the primary grade six and the junior grade one. There were significant differences between boys ( 61. 0%) and girls ( 65. 5%) in myopia(χ2=17. 180, P<0. 05).
CONCLUSION:The rate of poor vison is pretty high in students of Shenzhen aged between 5 to 16 years old, and myopia is the main reason. The development rate of myopia is increased with age. Early management of myopia may play an important role in controlling poor vision in students.