Dust ; analysis ; prevention & control ; Humans ; Pneumoconiosis ; prevention & control

Dust ; analysis ; Humans ; Mining ; Occupational Exposure ; prevention & control ; Quartz ; analysis ; Spain

AIM: To observe the clinical effect of Ex - press glaucoma filtration device implantation under scleral flap for traumatic glaucoma.
METHODS: Totally 19 eyes of 19 patients with traumatic glaucoma were implanted with Ex - press glaucoma filtration device under the scleral flap from December 2012 to May 2013. The postoperative visual acuity, anterior chamber depth and hyphema,intraocular pressure(IOP), filtering bleb and other complications were observed and summarized.
RESULTS: Ex - press glaucoma filtration device were implanted successfully in 19 patients. At 1d postoperatively shallow anterior chamber was occurred in 2 eyes and hyphema was occurred in 3 eyes. At 3mo postoperatively increased vision was occurred in 9 eyes (47%),functional filtering bleb was occurred in 18 eyes ( 95%), and IOP was 12. 1 ± 6. 1mmHg. At 6mo postoperatively increased vision was occurred in 11 eyes (58%),functional filtering bleb was occurred in 18 eyes (95%),and IOP was 13. 3±6. 9mmHg. Compared with the preoperative IOP ( 29. 8 ± 6. 7mmHg), the difference was significant(P<0. 05).
CONCLUSION: Ex - press glaucoma filtration device implantationfor traumatic glaucoma can improve the postoperative vision and control the postoperative IOP stably with fewer complications and high safety.

Objective Using solid dispersion technique to prepare Silymarin Dropping Pill to accelerate dissolution and to improve bioavailability. A central composite design-response surface method was employed to select the optimum formulations. Methods Independent variables were Poloxamer 188 content and silymarin content, while dependent variables were disintegrating time and percent of silymarin dissoluted at a definite time. Linear, two and three order quadratic models were used to estimate the relationship between independent and dependent variables. Response surfaces were delineated according to best-fit mathematic models and optimum formulations were selected there from. Prediction was carried out through comparing the observed and predicted values. Results Three order quadratic equation was the best-fitted mathematic models to describe the relationship between dependent and independent variables, with a regression coefficient of 0.998. Bias between observed and predicted values of disintegrating time and dissolution percentage of optimum formulation dropping pill were negligible, indicating the high predictability of the fit models. Percent dissolution of Silymarin Dropping Pill at 60 min was 19 times as that of conventional tablets. Conclusion Dissolution speed of silymarin can be effectively improved through incorporating into dropping pills. It shows that the optimum mathematic model is highly predictive. The central composite design-response surface method can be fairly used in formulation screening.

Objective:To study on the target antibody composition,the titer,and immune cross reaction of immunoglobulin products.Methods:ELISA kit for IgG antibody against varicella zoster virus,cytomegalovirus,herpes simplex Ⅰ and Ⅱ type virus,rabies virus,tetanus toxoid and IgG RIA kit specific to hepatitis virus surface antigen were utilized.The antibody titer of 5 kinds of specific immunoglobulin,and the IgG injection for either intramuscular or intravenous preparations was detected.Results:There were higher antibody titer against rabies,HBsAg and tetanus in the immunoglobulin preparations,probably due to the blood donors immunized with correspording vaccination.Compared with the antibody preparations of higher efficacy against cytomegalovicrus dotained by screening,there was a narrow disparity for the titer of the target antibody in the blood IgG preparations.In the population,also widespread existence for infection by varicella zoster virus and herpes simplex Ⅰtype virus,the antibody titer level was lower than those against cytomegalovirus,higher than herpes simplex Ⅱtype virus.Conclusion:All of the 7 kinds target antibody can be detected from the samples of immunoglobulin,antibody titer is related with active and passive immunity,higher titer of against cytomegalovirus can be induced by vaccine of varicella zoster virus,there is noticeable difference for antibody titer level between the intramuscular and intravenous injection immunoglobulin.

A simple and sensitive method was developed to screen ?-PL p ro duced strains from soils. 150mg/L K_2Cr_2O_7 was added to th e solid medium for actinomycetes enriching. A basic dye, methylene blue, incorp orated in the agar plate to detect alkali producers, because dye reacted with th e secreted basic polymers by electrostatic interaction with the secreted basic p dymers and formed special zoon. And then dragendorff regent was used to detect alkaloid producers. Four ?-PL producers were obtained by TLC analysis. Meanw hile, phylogenetic analysis of PL6-3 strain, including morphology, physiologica l and biochemical characters and chemotaxomy were performed and phylogenetic tre e was constructed based on the 16S rDNA sequences. And the results indicated th at PL6-3 strain is a member of Kitasatospora.

Animals ; Arteritis ; complications ; immunology ; Coronary Artery Disease ; etiology ; pathology ; Coronary Vessels ; pathology ; Models, Animal ; Rabbits

Objective To evaluate the CT and MRI imaging features of primary ventricular lymphoma ,so as to provide a reference for the diagnosis and differential diagnosis of the disease .Methods The clinical data and imaging findings of primary ventricular lymphoma in one case was retrospectively analyzed with literature review and compared with primary lymphoma in parenchymal brain .Results Slightly high density tumor presented with regular shape in the trigone of lateral ventricles on CT findings , and slightly low signal intensity on T 1 and slightly high signal intensity on T 2 appeared on MRI findings with small cystic necrosis in tumour .An enhancement scan showed obviously enriched, and there was perilesional edema.After 14 day’s dehydration treatment, rechecked indicated that the lesions were significantly en-larged, the shape were irregula , the area of cystic necrosis was enlarged , heterogeneous enhanced scanning were enhanced , perilesional ede-ma became more heavier , and the imaging feature of “closed fist” appeared .It was proved to be diffuse large B cell lymphoma with surgical pathologic examination , and there was no lymphoma in other regions of the body with whole body PET-CT examination , which was clinically diagnosed as primary ventricular lymphoma .Conclusion Primary ventricular lymphoma is rarely reported ,and it has similar imaging mani-festations with primary lymphoma in parenchymal brain .The combination of multiple imaging modalities will be helpful to diagnosis and dif -ferential diagnosis for the suspected patients .

Objective To investigate the effect and mechanism of serotonin (5-HT) and secretin(SEC) on afferent discharge of vagus in rats. Methods Spontaneous afferent discharge of subdiaphragmatic vagus nerve was recorded in urethane anesthetized rats. The effects of 5-HT, 5-HT3 receptor antagonist and 5-HT+SEC on the discharge of subdiaphragmatic vagus nerve were investigated by intravenous injection of different dosage of 5-HT(3, 10, 30 ?g/kg), Granisetron (1 mg/kg) and 5-HT+SEC. Results Intravenous 5-HT caused obvious exciting effect on spontaneous afferent discharge of subdiaphragmatic vagus nerve. The 5-HT3 receptor antagonist significantly inhibited the effects of 5-HT. 5-HT+SEC could augment the effect of 5-HT on spontaneous discharge. Conclusion The exciting effect of 5-HT on afferent discharge of subdiaphragmatic vagus nerve is possibly mediated by 5-HT3 receptor related to vagus nerve afference. Secretin can augment the exciting effect of 5-HT on spontaneous discharge of vagus afferent nerve.

Objective To analyze the current situation of voluntary counseling and testing(VCT) and improve HIV/AIDS prevention and control in Jiangxi province.Method VCT services in the province were analyzed using descriptive methodology.Result The province is in shortage of full time VCT workers.Of the individuals receiving pre-testing counseling,those receiving post-testing counseling and receiving referral counseling accounted for 5.22% and 1.39%,respectively.The individuals receiving tests mostly were aged 20-29 years,and a little less were aged 30-39 years.Higher positive rates of HIV screening tests were found in Pingxiang and Nanchang cities,accounting for 39.13% and 26.09%,respectively.Conclusion To improve VCT service and contain the spread of HIV/AIDS in this province,it is necessary to establish VCT networks,upgrade quality of counseling service and publicize VCT and its outreach activities among target population.