Objective To investigate the correlation between thrombelastogram (TEG)parameters and plasma D-dimer (D-D) and platelet aggregation rate (PAgT)in patients with acute cerebral infarction (ACI).Methods From January 2015 to Jan-uary 2016,120 patients with ACI (ACI group),and 60 healthy subjects (healthy group)were enrolled in the study.The TEG parameters were detected by thromboelastography,including blood coagulation time (R),blood clotting time (K),rate of blood clotting (αangle),coagulation comprehensive index (CI)and the maximum intensity of blood clotting (MA).Blood coagulation indexes also were detected,including prothrombin time (PT),fibrinogen (FIB,detected by automatic coagulation analyzer),plasma D-D (detected by colloidal gold method)and PAgT (detected by blood aggregation tester).Results R (5.36±0.95 min),K (2.34±0.98 min)and PT (11.88±1.67 s)in the ACI group were shorter than those in the healthy group (6.20±1.28 min,2.87±0.87 min,12.40±1.82 s),(t=4.962,3.547,1.911,all P<0.05).Theαangle (61.65± 7.84)degrees,CI (-0.21±1.11),MA (58.94±6.14 mm),D-D (0.34±0.08 mg/L),PAgT (66.9±6.8)% and FIB (4.41±0.96 g/L)in the ACI group were higher than those in the healthy group [(56.02 ± 6.94)degrees,(-1.50 ± 1.30),(53.86±7.85 mm),(0.24±0.06 mg/L),(55.4±7)%,(2.87±0.88 g/L)],(t=4.714,6.209,5.583,8.550, 10.592,7.039,all P<0.05).In ACI group,D-D,PAgt and the TEG parameters (αangle,CI,MA)were significantly nega-tively correlated (r=-0.481,-0.470,-0.504,-0.488,all P<0.05).D-D,PAgt and the TEG parameters (αangle,CI, MA)were significantly positively correlated (r=0.338,0.395,0.427,0.391,0.436,-0.482,all P<0.05).Conclusion TEG parameters can reflect the severity of ACI to some extent,and they were significantly correlated with plasma D-D and PAgt.

Objective To observe the neuroprotection of Baicalin on brain damage following experimental intracerebral hemorrhage in rats.Methods Rat model of intracerebral hemorrhage was induced by collagenase method.The rats were randomly divided into sham operation control group,model group,high-,middle-and low-dose drug group,treated with different dose of Baicalin.The brain water content and the level of SOD,MDA,NO and NOS were measured at the third and seventh day after modeling repectively.Results Compared with the sham operation control group,the brain water content and the level of MDA,NO and NOS were significantly higher,and the level of SOD was significantly lower in model group.The brain water content and the level of MDA,NO and NOS were significantly lower,and the level of SOD was obviously higher in high-,middle-and low-dose Baicalin group than that in model group.Conclusion Baicalin has evident protective effect on brain damage after experimental intracerebral hemorrhage in rats,which maybe related to the increase of SOD and decrease of MDA,NO and NOS.

Objective To quantitatively analyze the changes ofchoroidal capillaries in chronic central serous chorioretinopathy (CCSC) before and after half-dose photodynamic therapy (PDT).Methods A retrospective cohort study.Nineteen patients (21 eyes) with CCSC were enrolled in this study from November 2017 to September 2018 in People's Hospital of Wuhan University.Among them,there were 14 males (15 eyes) and 5 females (6 eyes),with diseases course over than 6 months.All patients underwent half-dose PDT.Twenty normal subjects (40 eyes) matched with age and sex in CCSC group were taken as controls.The subfoveal choroidal thickness (SFCT) was measured by Heidelberg depth enhanced imaging-OCT before and after PDT treatment in CCSC patients and in normal subjects.Spectral-domain OCT (Retina map) and Angio-OCT angiography (3 mm × 3 mm) were arranged for all subjects at the same time.Macular fovea retinal thickness (CMT) was recorded under OCT-Retina map mode,and Angio-OCT 3 mm × 3 mm choroidal capillary images were binarized using Image J software,and calculating the area ratio of low pixel area as flow signal void (FSV).BCVA,spectral-domain OCT and Angio-OCT were performed 1 week and 1,3 months after PDT with the same equipment and methods before PDT.The changes of CMT,SFCT,FSV and BCVA in CCSC patients before and after PDT treatment were compared.Pearson correlation analysis was used to analyze the correlation between FSV and SFCT,age.Results The average CMT,SFCT and FSV in CCSC patients increased significantly compared with the controls (P＜0.05).The average SFCT and FSV in CCSC patients 3 months after treatment were higher and the average CMT decreased compared with the controls (P=0.000,0.000,0.000).Comparison before and after PDT in CCSC patients:there were significant differences in average CMT,SFCT and FSV before and after PDT (P=0.000,0.000,0.000).Post Hoc multiple comparisons showed that the average CMT (P=0.000,0.000,0.000,0.000,0.000) and FSV (P=0.010,0.000,0.000,0.001,0.000) decreased significantly in all time points except for 1 month and 3 months after treatment,so as the average FSV (P=0.788,0.702).The average SFCT decreased 1 month and 3 months after treatment compared with the baseline (P=0.024,0.008),and there was no significant difference between before treatment and 1 week after treatment (P=0.162),and between 1 month and 3 months after treatment (P=0.687).The correlation analysis showed that there was no correlation between FSV and age in CCSC patients (r=0.052,P=0.822),but there was a correlation between FSV and age in controls (r=0.716,P=0.000).Conclusion Quantitative analysis of OCTA showes the degree of choriocapillary ischemia in the form of FSV in CCSC patients decreased after PDT treatment,however,which is still higher than normal controls.

Objective:To investigate the expression of circ_0063865 in esophageal squamous cell carcinoma(ESCC)tissues and cells and its effect on the biological properties of the cells.Methods:The loop structure and stability of circ_0063865 were identified by Sanger sequencing, back-to-back primer validation and the ribonuclease R(Rnase R)tolerance assay.The expression of circ_0063865 was detected by RNA fluorescence in situ hybridization in an ESCC tissue microarray and its clinical relevance was analyzed.The expression levels of circ_0063865 in a normal esophageal epithelial cell line and ESCC cell lines were measured by real-time quantitative polymerase chain reaction(RT-qPCR). Cell counting Kit-8, the colony formation assay, the scratch assay, the transwell invasion assay and flow cytometry were used to detect the effects of circ_0063865 on cell proliferation, migration, invasion abilities and apoptosis, respectively.Results:The loop formation of circ_0063865 was verified by Sanger sequencing, back-to-back primer and Rnase R tolerance assays.The results of RNA fluorescence in situ hybridization showed that the mean fluorescence intensity of circ_0063865 expressed in ESCC tissues was significantly higher than in its paired paracancerous normal tissues( t=2.267, P<0.05). The expression of circ_0063865 was significantly associated with lymph node metastasis( χ2=4.356, P<0.05). The average overall survival time of patients with high circ_0063865 expression ESCC was lower than that of patients with low circ_0063865 expression ESCC.RT-qPCR results demonstrated that, compared with HEEC, circ_0063865 expression was elevated in ESCC cell lines( F=18.413, P<0.05). In addition, after circ_0063865 knockdown, the proliferation, migration and invasion abilities of KYSE-30 and KYSE-150 cells were significantly decreased, and the level of apoptosis was significantly increased(both P<0.05). Conclusions:The expression of circ_0063865 in ESCC is high, and changes in its expression are significantly correlated with lymph node metastasis.Additionally, circ_0063865 can promote the proliferation, migration and invasion of ESCC cells.

Objective To explore the effect of virtual reality treadmill training on balance and gait in stroke patients. Methods From March,2022,to March,2023,40 stroke patients in Beijing Tiantan Hospital,Capital Medical University were randomly divided into control group(n = 20)and experimental group(n = 20).Both groups received rou-tine rehabilitation training.The control group received ordinary treadmill walking training,and the experimental group received treadmill walking training with virtual reality,for two weeks.They were assessed with Berg Bal-ance Scale(BBS)and Timed Up and Go Test(TUGT),and the envelope ellipse area,center of pressure(COP)av-erage speed of movement,step length,stride length and stride width were compared between two groups before and after treatment. Results After treatment,the scores of BBS and time of TUGT improved in both groups(|t|>3.508,P<0.01),and they were better in the experimental group than in the control group(|t|>3.019,P<0.01);there was no significant dif-ference in the envelope ellipse area,COP average speed,and stride width between two groups(P>0.05);howev-er,the step length and stride width improved in the experimental group(|t|>4.008,P<0.01). Conclusion Treadmill training with virtual reality can improve the balance and walking ability of stroke patients.