ObjectiveTo observe the protective effects of Chinese medicine Naoshuning on neurological deficits following traumatic brain injury (TBI) in rats.MethodsCerebral contusion was produced by dropping weight,the beam-walking task was employed to observe neurological functional changes,water content in the brain tissue and neuropathological changes were also evaluated.ResultsWithin one week the ability to process in beam-walking task was significantly lessened,the outcome of beam-walking task of Naoshuning group was significantly better than that of the model group.Water content in the brain tissue and neuropathological changes were also alleviated in Naoshuning group compared with that in model group.ConclusionEarly alleviating brain edema,protecting brain tissue may be one of the mechanism of Chinese medicine to ameliorate the behavior deficits following TBI in rats.

ObjectiveTo investigate the dynamic change of cerebral aquaporin 4 (AQP4) expression level during traumatic brain injury (TBI) in rats and the relationship between AQP4 expression and traumatic brain injury and edema. MethodsThe experimental TBI model was established by bumpiness of free falling body according to Feeney's. The changes of brain water content (BWC) and permeability of blood-brain barrier (BBB) were measured by the methods of wet and dry weight and Evans blue fluorometry. Immunohistochemistry was used to determine the change of expression of AQP4 during different periods after TBI. Results6 h after TBI, water content of brain tissue and EB content in the contusion side significantly increased, and the protein expression of AQP4 in contusion marginal region began to increase. They reached summit 24 h after operation and did not come back normal level 5 d after operation. There was significantly positive correlation between protein expression of AQP4 and change of EB content (r=0.957486,P<0.05). ConclusionThe dynamic change of cerebral AQP4 expression level closely related to the destruction of BBB and the formation of cerebral edema during traumatic brain injury.

Objective To investigate the relationship between glomerular filtration rate (GFR) and diabetic retinopathy (DR) and macular thickness in patients with type 2 diabetes mellitus (T2DM).Methods A total of 161 T2DM inpatients were enrolled in this study.There were 95 males (95 eyes) and 66 females (66 eyes),with an average age of (62.2±11.0) years.The average duration of diabetes was (14.8±7.9) years.The patients were grouped according to the degree of DR.Among them,91 patients were no DR,24 patients were mild non-proliferative DR (NPDR),24 patients were moderate NPDR,13 patients were severe NPDR and 9 eyes were proliferative DR (PDR).Severe NPDR and PDR were combine into severe DR group for statistical analysis.All patients underwent direct ophthalmoscope,fundus colorized photography,spectral domain optical coherence tomography (SD-OCT),fasting blood-glucose,glycated hemoglobin and renal function examinations.GFR was evaluated by 99 mTcDTPA.DR degree was evaluated by direct ophthalmoscope and fundus colorized photography.Central subfield (CSF),central macular volume and mean retinal thickness (MRT) were measure by SD-OCT.The correlation between GFR and DR staging and macular retinal thickness were analyzed by Spearman correlation analysis and Pearson correlation analysis.Logistic regression analysis was used to analyze the correlation between GFR and presence of DR.Results GFR was gradually decreased in patients with no DR,mild NPDR,moderate NPDR and severe DR (F=12.32,P＜0.001).Pearson correlation analysis demonstrated that GFR was negatively correlated to CSF (r=-0.202,P=0.010);but no correlation with MRT (r=-0.087,P=0.272).Spearman correlation analysis demonstrated that GFR was negatively correlated to DR staging (r=-0.325,P ＜ 0.001).The difference of DR prevalence rate in normal,slight abnormal renal function and renal insufficiency patients was significant (x2=12.32,P=0.002).Logistic regression analysis demonstrated that lower levels of GFR was significantly associated with presence of DR (95％ confidence interval=1.71-4.32,odds ratio=2.72,P＜0.001).Conclusion In T2DM patients,GFR is negatively correlated to DR staging and CSF.Lower GFR is independent risk factors for DR.

Objective To observe the visual acuity change in patients with different patterns of optical coherence tomography (OCT) of diabetic macular edema (DME) after intravitreal ranibizumab injection and/or laser photocoagulation.Methods A retrospective observational case series.Seventy patients (99 eyes) with DME were enrolled.Best-corrected visual acuity (BCVA) was evaluated using the international vision test chart,and then convert the result to the logarithm of the minimum angle of resolution (logMAR).According to the morphological characteristics of OCT,the DME was divided into 3 patterns,including diffuse macular edema (DRT),cystoid macular edema (CME) and serous neuroepithelial layer detachment.The average follow-up was (80.43 ± 74.89) days.The patients were divided into 3 groups according to the different treatments,including intravitreal ranibizumab injection group (group A,21 patients,25 eyes),intravitreal ranibizumab injection and laser photocoagulation group (group B,23 patients,26 eyes),laser photocoagulation group (group C,26 patients,48 eyes).The changes of absolute BCVA (ABCVA) and improved visual acuity were compared between different treatment groups and different OCT patterns.ABCVA =logMAR BCVA before treatment-logMAR BCVA after treatment.Improvement more than 0.3 of logMAR value was considered as improved visual acuity.Results There was no significant difference in ABCVA between different treatment groups (F=0.050,P＞0.05).The improved visual acuity in group A and B were great than group C (x2=5.645,6.301;P＜0.05).In group A,B and C,there was no significant difference in ABCVA and improved visual acuity between different OCT patterns (P＞0.05).Improved visual acuity of DRT and CME eyes were higher in group A&B (70.59％ and 50.00％) than in group C (26.47％ and 14.29％),the difference was statistically significant (x2=5.075,4.453;P＜0.05).Conclusions There is no obvious change of visual acuity in patients with different OCT patterns of DME after the same treatment by intravitreal ranibizumab injection and/or laser photocoagulation.The improved visual acuity is not consistent in same OCT patterns after different treatment.

Objective To investigate whether the expression of sterile alpha motif and histidine/aspartic acid domain containing protein 1 ( SAMHD1 ) could be induced by IFN-α and mediated by microRNA-181a (miR-181a). Methods THP-1 and Jurkat cells were treated with different doses of IFN-α(200 IU/ml and 1 000 IU/ml) for 24 h. The expression of miR-181a and SAMHD1 at mRNA level were de-tected by quantitative PCR. Western blot assay was performed to measure the expression of SAMHD1 at pro-tein level. THP-1 and Jurkat cells were transfected with p-181a, an over-expression vector of miR-181a, and then treated with 200 IU/ml of IFN-α. Changes in the expression of SAMHD1 in those cells were analyzed. Results IFN-α significantly enhanced the expression of SAMHD1 at mRNA and protein levels, but inhibi-ted the expression of miR-181a, especially in Jurkat cells. The expression of SAMHD induced by IFN-αwas inhibited in cells over-expressing miR-181a. Conclusion This study suggests that IFN-α could induce the expression of SAMHD1 by down-regulating the level of miR-181a.

Background In recent years,some researches show that getting younger over the diabetes mellitus (DM) was an obrious trend.But studies of early diabetic retinopathy in young people with diabetes were few.Both patients and doctors did not put enough importance on it.Objective This study was to evaluate the earlier dynamic changes of retina morphology and function caused by type 2 DM in young population.Methods A cohort study was designed.One hundred and thirty-six young patients who were initially diagnosed as type 2 DM in Cangzhou Central Hospital were included from January to March in 2010 and 91 healthy individuals with the matched age were enrolled at the same period.Glycated hemoglobin (HbAlc) level in blood was assayed yearly,and ophthalmoscope,optical coherence tomography (OCT) and visual contrast sensitivity (CS) examinations were performed to evaluate the dynamic changes of retinal nerve fiber layer (RNFL) thickness around optical disc,retinal function and retinal microvessels of DM patients.In addition,the correlation between RNFL thickness or CS and average HbAlc level in DM patients was assessed.This study followed Declaration of Helsinki,and written informed consent was obtained from each subject.Results The levels of HbAlc in DM patients were (7.5 ±1.6) ％,(7.2 ±1.6) ％,(7.4 ±1.6) ％,(7.6±1.6)％ and (7.7 ±1.6)％ in 2010,2011,2012,2013 and 2014,respectively,and HbAlc≥7.0％ was observed in 74 patients (54.4％).The RNFL thicknesses of full optic disk and superior 1/4 quadrant of the optic disk were significantly declined in 2012,2013 and 2014 in the DM group compared with the normal control group (full disk:t =2.216,5.003,7.303;all at P ＜ 0.05.superior 1/4 quadrant:t =2.382,5.657,7.194;all at P ＜ 0.05),but no significant differences were found between them in 2010 and 2011 (all at P＞0.05).In the DM group,RNFL thicknesses of full optic disk were (99.94±10.01) μm and (96.32±10.32) μm in 2013 and 2014,which were significantly lower than (104.55±9.23) μm in 2010 (t=7.819,13.959,both at P＜0.05);the RNFL thicknesses of superior 1/4 quadrant around disk were (118.64± 13.98) μm and (115.06 ± 14.35) μm in 2013 and 2014,which were significantly lower than (127.48± 13.67) μm in 2010 (t =10.504,14.758,both at P＜0.05),However,the RNFL thicknesses were not significantly changed among the different time points in the normal control group (all at P＞0.05).In addition,the CS values of 3.0,6.0,12.0,18.0 c/d in 2013 and 2014 in the DM group were lower than those in the normal control group (all at P＜0.05),and the CS values in 2013 and 2014 were reduced in comparison with 2010 in the DM group (all at P＜0.05).Positive correlations were found between the differences of RNFL thickness or CS and the average HbAlc level in the DM group (r =0.640,F =8.991,P =0.000;r =0.541,F =7.572,P =0.000).Retinal microaneurysms were seen in two type 2 DM patients by ophthalmoscope at the end of follow-up.Conclusions The young people with type 2 DM have poor blood glucose control.The RNFLs are thinning and visual functions are declining in young type 2 DM patients with the lapse of disease course,and these retinal damages are associated with poor control of blood glucose.

Objective To observe the effects of 19 kinds of traditional Chinese medicine (TCM) aqueous extracts in vitro on the standard and clinical strains of propionibacterium acnes.Methods We collected lesion contents of acne vulgaris patients and conducted anaerobic cultivation of propionibacterium acnes at 35 ℃ for forty-eight hours.After tested by oxygen resistance experiment,Gram staining microscopy,catalytic test,nitrate test and sugar fermentation experiment,ANI anaerobic identification card,and VITEK fully-automatic microbe instrument,the strains were identified as propionibacterium acnes.We used AGAR dilution method to test the MIC values of various TCM aqueous extracts.Results The MIC values of Cortex phellodendri,Scutellaria baicalensis,and Rhiubarb were 25 mg/ml,respectively;the MIC values of Sophora flavescens and Honeysuckle were 50 mg/ml;the MIC values of Forsythia was 100 mg/ml.13 kinds of TCM aqueous extract did not produce bacteriostasis at the highest concentration of 200 mg/ml including Belvedere fruit,Chinese bulbul,Hedyotis diffusa,Houttuynia cordata,Purslane,Yerbadetajo herb,Radix isatidis,Lithospermum erythrorhizon,Folium isatidis,Taraxacum,Semen plantaginis,Angelica dahurica,and Fructus cnidii.Conclusions Aqueous extracts of Cortex phellodendri,Scutellaria baicalensis,Rhubarb,Sophora flavescens,Honeysuckle and Forsythia have good inhibitory effects in vitro on Propionibacterium acnes.

Objective In order to improve the diagnosis accuracy , 18F-FDG PET/CT results of 169 cases of lung lesions were analyzed. Methods The data of 169 pathological diagnosed patients were collected. SPSS 18.0 was used for the data analysis. Results In 169 cases, 122 cases were proved malignant by patholog-ical diagnosis, in which 110 cases were correctly diagnosed by PET/CT. 47 cases were proved benign by patho-logical diagnosis, in which 15 cases were correctly diagnosed by PET/CT. The sensitivity was 90.2%, specificity was 31.9%, and the accuracy was 74.0%. Conclusion In order to improve the accuracy rate of PET/CT exam-ination and reduce the existence of false positive cases and false positive cases , we should estimate SUV (max) objectively and diagnose according to the size of the lesion , clinical history and laboratory results.

Objective:To explore the effect of Naoshuning on the protein expression of Matrix metalloproteinases(MMPs) in experimental injuried brain tissue of rats. Methods:Immunohistochemistry was used to determine the changes of protein expression of MMPs. Brain tissue water content,permeability and ultramicrostructure of blood-brain barrier(BBB) were also observed. Results:Compared with the sham group,the brain tissue water and EB content of injured side and the level of MMP-2 and MMP-9 protein expression in brain tissue around contusion in model group increased obviously(all P

Objective To investigate the distribution patterns of diabetic macular edema (DME) based on optical coherence tomography (OCT),and explore its correlation with diabetic retinopathy (DR) stages and systemic factors.Methods A total of 135 patients (242 eyes) with type 2 diabetes were included in this retrospective study.There were 75 males (138 eyes) and 60 females (104 eyes),the ages were from 29 to 83 years,with an average age of (5 8.8± 11.1) years.The general information such as height,weight,smoking history and blood glucose [such as glycosylated hemoglobin (HbA1 c)],blood pressure,blood lipid,24 hours urine protein and other examinations were collected.The diagnosis of DR and DME were made,and the staging of DR and typing of DME were performed based on fundus color imaging and OCT.DR were divided into mild nonproliferative DR (NPDR),moderate NPDR,severe NPDR and proliferative DR (PDR).DME were categorizedinto 4 types including sponge-like retinal swelling (SME),cystoid macular edema (CME),serous retinal detachment (SRD) and posterior hyaloid traction (PHT).The correlation between DME types and DR staging were analyzed by x2 test and Fisher exact test.Multivariate logistic regression analysis was used to analyze the correlation between DME types and systemic factors.Results In 242 DR eyes the proportions of mild,moderate,severe NPDR and PDR were 30.99％,32.64％,23.14％ and 13.23％,respectively.There were 199 eyes (82.23％) with DME.There were statistically significant differences in the proportion of DME in different stages of DR (x2=21.077,P＜0.01).In the 199 eyes with DME,There were 165 eyes (68.18％) of SME,22 eyes (9.09％) of CME,7 eyes (2.89％) of SRD and 5 eyes (2.07％) of PHT.The distribution of DME patterns in different stages of DR was statistically significant (x2=156.273,P＜0.01).Logistic regression analysis showed that the duration of diabetes,HbA1c and macroalbummuria were independent risk factors for DME [odds ratio (OR)=1.090,1.510,4.123;P＜0.05],and were also independent for SME (OR=1.092,1.445,3.942;P＜0.05);HbA1c wasanindependentriskfactorforSRD(OR=2.337,P＜0.05).Canclusions There are differences in the distribution of different DME types in each stage of DR.The duration of diabetes,HbA 1c and macroalbuminuria were independent risk factors for DME and SME,and macroalbuminuria and HbA1c for CME and SRD.