Air Pollutants ; analysis ; Chromatography, High Pressure Liquid ; methods ; Urea ; analysis ; Workplace

AIM:To analyze curative effect of laser treatment for diabetic retinopathy (DR).METHODS:A total of 100 patients (136 eyes) with DR who were admitted to our hospital during January 2015 to December 2016 were enrolled in the study.All patients were given 532nm laser treatment.Changes of visual acuity and the incidence of complications were statistically analyzed after treatment, and the macula central fovea retinal thickness and hemodynamic changes of affected eyes were compared before and after treatment.The effects of laser treatment were compared among patients with different types of diabetes, patients in different DR stages and patients with different glycosylated hemoglobin (HbAlc) levels.RESULTS:After treatment, the macula central fovea retinal thickness, end diastolic velocity (EDV), pulsatility index (PI) and central retinal artery (CRA), mean flow velocity (Vm) significantly decreased (P<0.05).After treatment, there were 2 cases (2 eyes) of bleeding and 2 cases (2 eyes) of tractional retinal detachment.The effective improvement rate of visual acuity was 83.1%.There were significant differences in the improvement rate of visual acuity among patients with different types of diabetes [type 1 (60.0%) vs type 2 (84.9%)], patients in different DR stages [preproliferative diabetic retinopathy (NPDR) 92.3%, early proliferative stage (PDR) 85.1%, high-risk PDR 54.2%] and patients with different HbAlc levels (< 8% 91.8% vs ≥8% 73.0%) (P<0.05).CONCLUSION:The 532nm laser treatment is effective for DR.It can significantly improve the retinal hemodynamics and visual acuity and relieve macular edema.Types of diabetes mellitus, stages of DR and blood glucose control effect may affect the effects of laser treatment.

AIM: To study the effects of IL-6 and IL-1? on the blood polymorphonuclear-neutrophils(PMN) apoptosis postburn. METHODS: Wistar rats inflicted by 30% total body surface area (TBSA) Ⅲ degree scalding were employed as the model. PMN were isolated by density gradient centrifugation using Percoll-hypaque and labeled with TdT-mediated and dUTP nick end labeling (TUNEL) and analyzed by flow cytometric analysis. The intracellular caspase-3 activation and the serum levels of IL-6 and IL-1? were analyzed by fluorometric immunosorbent enzyme assay and enzyme-linked immunosorbent assay, respectively. RESULTS: The serum IL-6 levels (?g/L) in groups of 3, 6, 12, 24 and 48 h postburn (9 14?1 16, 12 49?1 14, 3 01?0 75, 1 41?0 28 and 1 56?0 43 in turn) and IL-1? (ng/L) in groups of 3, 6, 12 h postburn (90 08?8 39, 320 93?14 48 and 47 84?5 19) were much higher than IL-6 (0 24?0 07) and IL-1? (27 65?4 86) in control group ( P

OBJECTIVE:To optimize the inclusion process of the volatile oil of Pogostemon cablin and Acorus tatarinowii in Xiaoyu anshen capsule.METHODS:The inclusion process was carried out by saturated water solution method.And the inclusion process was optimized by orthogonal experiment with the inclusion ratio and yield of the volatile oil as indexes taking the ratio of volatile oil to ?-CD,the temperature and the time of inclusion as factors.The physical phase of the inclusion complex was detected by differential scanning calorimetry(DSC).RESULTS:The optimum inclusion process was established as follows:the ratio of oil to ?-CD=1∶8;the ratio of water to ?-CD=10∶1;the inclusion time was 1h and the inclusion temperature was 50 ℃.The inclusion rate was as high as 90%.The DSC revealed that a new physical phase has been formed for the inclusion complex.CONCLUSION:The intermolecular inclusion complex with good stability and high yield of volatile oil could be obtained from the optimized inclusion process.

To study the contribution of T cell subsets in the pathogenesis of Murine hepatitis virus Type3 (MHV-3) induced chronic viral hepatitis in C3H/Hej mice, ninety C3H/Hej mice were chosen to individually receive 10 plaque forming units (PFU) of MHV-3 intraperitoneally. The changes of virus titer and pathology in liver tissue were examined by standard plaque assay and by the hematoxylin/eosin (HE) staining method from 2 days post MHV-3 infection. The ratios of T cell subsets including CD3+CD4+CD8-, CD3+CD4-CD8+, CD3+CD4-CD8-, CD3+CD4+CD25+, CD3+CD4+CD25- and CD3+CD4-CD25+ T lymphocyte of total T lymphocytes in blood, spleen and liver were examined at 0, 2, 4, 6,8, 10, 12, 15, 20, 25, 30, 40 days post MHV-3 infection by flow cytosorting. We observed that the virus titer raised and showed persistent virus duplications and inflammatory changes in the livers of C3H/Hej mice from 2 days post MHV-3 infection. The double negative T cell (DN Treg cell) and CD4+CD25+ T cell ratios increased significantly from 2 days post MHV-3 infection in C3H/Hej mice, and CD3+CD4+CD8-, CD3+CD4-CD8+, CD3+CD4+CD25- and CD3+CD4-CD25+ T cell ratios decreased accordingly. In conclusion, the changes of virus titer and pathology in the livers of C3H/Hej mice post MHV-3 suggest their contribution to viral persistence. Further characterizations of DN Treg cells are that infection indicates that MHV-3 could induce the chronic inflammation in livers of C3H/Hej mice.The increase of the DN Treg cell and CD4+CD25+ T cell ratios in C3H/Hej mice post MHV-3 infection suggests that DN Treg cells and CD4+CD25+ T cells may both have important suppressive immunomodulation functions in the development of chronic viral hepatitis and have important roles in the virus persistent infection. Further characterizations of DNT cell and CD4+CD25+ T cell are under investigation.

Professional assessment in Chinese Higher Education has made great progress in three stages: the sporadic practice, trial and promotion. The authors present several comments on the characteristics and the professional assessment standards of clinical pharmacy in China, and focus on the scientific system of professional assessment.

Glaucoma is a group of diseases which can threaten and damage the optic nerve and its visual pathway, leading to visual impairment as a result. Glaucomatous optic neuropathy is a chronic disease accompanied by apoptosis of retinal ganglion cells ( RGCs ) , visual field defect and cupping of optic nerve head. The gold standard in functional glaucoma evaluation is standard automated perimetry ( SAP) , but it is often limited to the subjective feelings of the patients. Still, visual electrophysiological techniques cannot replace the conventional inspection, but with its rapid development, it has provided a new strategy for the early diagnosis of glaucoma as a supplement because it can show changes in amplitude and latency before visual field defect. Here we review three special electroretinograms and multifocal focal visually evoked potentials in the early diagnosis of glaucoma.

Objective To evaluated the application value of mean corpuscular volume(MCV) and red blood cell volume distribu-tion width(RDW) in predicting early treatment responses of non-severe aplastic anemia(NSAA) .Methods 101 cases of patients who were newly diagnosed with non-severe aplastic anemia and were treated with Cyclosporine (CsA)combined androgen therapy . Treatment before baseline MCV ,RDW value were measured ,treatment for 3 months ,6 months test routine blood ,reticulocyte indi-cators and treatment results were statistically analyzed and receiver operating characteristic (ROC) curve was used to estimate the sensitivity and specificity of MCV ,RDW in predicting early treatment results .Results The level of MCV and RDW in non-severe aplastic anemia were significantly higher than normal reference .the responded patients had significantly higher pretreatment base-line MCV value than those non-responded .especially at 6 month ,baseline MCV were 105 .10 fl and 98 .30 fl respectively (P=0 .025) .the responded patients had significantly lower pretreatment baseline RDW value than those non-responded .especially at 3 month .baseline RDW were 14 .60% and 16 .60% respectively(P=0 .001) .The cutoff level of MCV (100 fL) and RDW (15 .55% ) for the predicting 3 and 6 month treatment responses were established based on the ROC curve ,with degree of accurancy of MCV was 62 .4% ,61 .4% and RDW 70 .3% ,63 .4% respectively .compared the treatment efficacy acuity MCV ≥100 fL/RDW <15 .55%group was significantly better than MCV < 100 fL/RDW≥15 .55% group .Multivariate analysis showed that pretreatment RDW and absolute reticulocyte value was the early prognostic factor of NSAA treatment effect .84 patients with ARC ≥ 20 × 109/L , through RDW cutoff Layered compare treatment response :RDW<15 .55% group was significantly better than the RDW≥15 .55%group(P=0 .000) .Conclusion MCV can not serve as of a significant predictor of early treatment response in non-severe aplastic a-nemia .RDW can serve as of the bone marrow failure severity indicators and a significant predictor of early treatment response in non-severe aplastic anemia .The joint reticulocyte absolute value parameters ,which can more accurately predict treatment efficacy .

Objective: To observe the effect of different moxibustion durations on rats with rheumatoid arthritis (RA) and to evaluate the relationship between moxibustion amount and moxibustion efficacy.Methods: Eight rats were randomly selected as a normal group from the 40 male Sprague-Dawley (SD) rats, and the other 32 rats were used to establish typeⅡ collagen-induced RA models. After successful modeling, the 32 rats were randomly divided into a model group, a moxibustion for 20 min group, a moxibustion for 40 min group and a moxibustion for 60 min group, with 8 rats in each group. Rats in the normal group did not receive modeling and moxibustion intervention; rats in the model group did not receive moxibustion after modeling; rats in the moxibustion for 20 min group, the moxibustion for 40 min group and the moxibustion for 60 min group were treated with moxibustion at Shenshu (BL 23) and Zusanli (ST 36) for 20 min, 40 min and 60 min, respectively. Six days were a course of treatment, with a total of 3-course treatments and a 1-day rest between the courses of treatment. After treatment, the serum levels of interleukin (IL)-1β and tumor necrosis factor (TNF)-α, arthritis index (AI) scores, toe volumes and pathological score of synovitis were evaluated in the rats.Results: Compared with the normal group, the serum IL-1β and TNF-α levels, and the toe volumes in the model group were increased, and the differences were statistically significant (P<0.01), before the treatment. Compared with the model group, the serum IL-1β and TNF-α levels, toe volumes and arthritis index (AI) scores were significantly decreased in the moxibustion for 20 min group, the moxibustion for 40 min group and the moxibustion for 60 min group (P<0.05 orP<0.01 ). Compared with the moxibustion for 20 min group and the moxibustion for 60 min group, serum IL-1β and TNF-α levels, toe volumes and AI scores were decreased more significantly in moxibustion for 40 min group, and the differences were statistically significant (P<0.05 orP<0.01). There were no significant differences in serum IL-1β and TNF-α levels, AI scores and toe volumes between the moxibustion for 20 min group and the moxibustion for 60 min group (allP>0.05). The synovial histopathological improvement was the most obvious in the moxibustion for 40 min group, when the synovial histopathological changes were compared among the moxibustion for 20 min group, moxibustion for 40 min group and moxibustion for 60 min group.Conclusion: The therapeutic efficacy of moxibustion for 40 min in RA rats was more significant than that of moxibustion for 20 min and moxibustion for 60 min, indicating that the duration of moxibustion is the main factor affecting its therapeutic efficacy.

Objective To analyze the clinical features of infantile cytomegalovirus(CMV) hepatitis with cholestasis and investigate intrahepatic cholestasis due to hepatocytic impairment caused by CMV infection.Methods Forty-seven children with CMV cholestatic he-patitis were divided into 2 groups according to the level of total bilirubin(TB):22 cases with serum TB lower than 136.8 ?mol/L(groupⅠ),and 25 cases with serum TB higher than 136.8 ?mol/L(groupⅡ).All children were treated with both gangciclovir and routine met-hods,and serum biochemistry were checked before and after treatment.SPSS 13.0 software was used to analyze the data.Results Forty-seven cases of infantile CMV cholestatic hepatitis had different degrees of jaundice,hepatosplenomegaly and abnormal liver functions.The differences of serum ALT and AST between the 2 groups had statistical significance,the levels of serum gamma glutamy transferase(GGT) and alkaline phosphatase(ALP) were lightly higher in groupⅡcompared with those in groupⅠ,but there were no statistical significance.TB,direct bilirubin(DB),ALT and AST were decreased in the 2 groups after treatment,GGT and ALP hadn′t decreased significantly after treatment.Conclusions CMV infection can injure hepatocytes and epithelials on each grade of bile duct,thus CMV hepatitis causes intrahepatic cholestasis.Cholestasis due to hepatocytic impairment deserves emphasis and intervention should be done as early as possible.Gangciclovir therapy for CMV infection manifest effective and safe in short-term.