Objective To evaluate the effects of simvastatin on the vascular elasticitv in fat-fed rabbits by echo-tracking(ET)technique.Methods Twenty seven rabbits were divided randomly into 3 groups:normal control group(group A),high fat diet group(group B),simvastatin group(group C:high fat diet for the 1st 4 weeks and high fat diet+simvastatin for the 2nd 4 weeks).β,EP,AC,and PWVβof abdominal aorta (AO) and femoral artery(FA)of rabbits in group A、B、C were measured by ET technique at the end of 4th week and 8th week respectively.The expression of iNOS was measured at the end of 8th week.Results At the end of the 4th week,β,Ep,and PWVβ of FA were significantly inereased and AC was significantly decreased in group B compared to those in group A(P＜0.05).At the end of the 8th week,β,Ep,PWVβof AO were significantly increased and AC was significantly decreased in group B compared to those in group A(P＜0.05);β,Ep,PWVβ of FA were statistically decreased and AC was statistically increased in group C compared to those in group B(P＜0.05),however there was no significant difference of AO between groups B and C.Conclusions Short-term administration of simvastatin can improve the elasticity of some muscular arteries such as FA but not AO.

Objective To investigate the genotoxicity of aniline and repair dynamics in hepatocytes and lymph-cytes.Methods Aniline was administered intragastrically to SPF Kunming mice ( five mice in each group) in a single dose of 100 mg/kg body weight.The hepatocytes and peripheral blood lymphocytes were obtained at 3, 8, 16, 24, and 32 hours after aniline administration, respectively.The control mice received tap water only.The DNA damages were detected by single cell gel electrophoresis assay ( SCGE) and the time-effect relationship was analyzed.Results The results of SCGE experiment showed that both the tail lenth and tail moment of the hepatocyte DNA were increased gradually from 8 h, and reached the maximum at 16 h ( P<0.01) after aniline administration.As time went on, DNA damage was recovered gradually, and the two DNA damage indexes were completely returned to control levels at 32 h after aniline administration (P>0.05).The two DNA damage indexes of peripheral blood lymphocytes started to increase at 16 h, reached the maxi-mum at 24 h ( P<0.01) , and began to recover at 32 h after aniline administration.Conclusions Our findings suggeste that aniline may be a potential genotoxicant to hepatocytes and peripheral blood lymphocytes.There is a clear time-response relationship in terms of the two DNA damage indexes, indicating that hepatocytes and lymphocytes in mice possess an effi-cient DNA repair mechanism against aniline toxicity.

Objective To explore the localization of epileptogenic focus and select the appropriate surgical procedures for post-traumatic epilepsy. Methods The clinical data of 21 patients with post-traumatic epilepsy were studied retrospectively. Epileptogenic focus was located by comprehensively analyzing data of electro-neurophysiology, neurological imaging and clinical manifestation. Surgical procedures were performed in all patients, including resection of lesion and peripheral cortex in 12 patients, epileptogenie focus resection plus low power bipolar coagulation in five, anterior temporal iobectomy plus amygdalohippocampectomy in three and corpus callosotomy in one. Results All patients were followed up from 6 months to 3 years, which showed satisfactory outcome in eight patients, marked improvement in six, improvement in five and slight improvement in two. The total effective rate was 90%. Conclusions Surgical procedure is important for intractable post-traumatic epilepsy. The good efficacy depends on precise localization of epileptogenic focus and combined application of various surgical procedures.

Objective:To investigate the effect of lncRNA HOTAIR on the radiosensitivity of glioma cells and its underlying mechanism.Methods:The negative control plasmid, HOTAIR silencing plasmid, miR-NC over expressing plasmid, miR-17-5p over expressing plasmid were transfected into U87R cells, and assigned intothe silencing control, HOTAIR silencing, miR-NC over expressing and miR-17-5 pover expressing groups. Cells in the the above groups were irradiated at a dose of 4Gy, and recorded as silencing control+ 4Gy group, HOTAIRsilencing+ 4Gy group, miR-NC over expressing+ 4Gy group and miR-17-5p over expressing+ 4Gy group. The HOTAIR silencing plasmid, miR-NC suppressing plasmid and miR-17-5p suppressing plasmid were co-transfected into U87R cells and recorded as the HOTAIR silencing+ miR-NC suppressing group and HOTAIR silencing+ miR-17-5p suppressing group. All procedures were transfected by the liposome method. The expression of miR-17-5p and HOTAIR was detected by qRT-PCR. The radio sensitivity of glioma cells was evaluated by cell clone formation assay. The cell apoptosis was assessed by flow cytometry. The fluorescence activity was assessed by dual luciferase reporter assay.Results:HOTAIR was highly expressed in the radiation-resistant glioma cells. Silencing HOTAIR and over-expressing miR-17-5p could increase the radiosensitivity of U87R cells and promote radiation-induced apoptosis of U87R cells. HOTAIR could target and regulate the miR-17-5p expression. Suppressing miR-17-5p reversed the effect of silencing HOTAIR on U87R cell sensitization and promoting radiation-induced U87R cell apoptosis.Conclusions:Silencing lncRNA HOTAIR yields radiation sensitization and promotes radiation-induced apoptosis in glioma cells. The mechanism may be related to the regulation of miR-17-5p.

Objective To investigate the incidence and etiological factors of hyponatremia following traumatic brain injury (TBI) and analyze the relationship between hyponatremia and the patient’s age, gender, type of injury, Glasgow coma scale (GCS), operation and computerized tomography (CT) scan of head. Methods Clinical data of 136 pa-tients with moderate or severe TBI in our hospital were analyzed retrospectively, including patient’s age, gender, type of injury, GCS, operation, brain edema and basal skull fracture. The relationship between clinical data and hyponatremia were analyzed statistically by Chi-square test and multivariate Logistic regression analysis. Results There were 56 pa-tients with hyponatremia in 136 patients (81 males) with moderate or severe TBI. Multivariate Logistic regression analysis showed that hyponatremia secondary to TBI was not associated with patient’s age, gender, type of injury and operation or not. However, there was a high correlation between hyponatremia following TBI and clinical characteristics of TBI at ear-ly stage, such as GCS, brain edema and basal skull fracture. Conclusions Patients with TBI is more likely to develop hy-ponatremia when they have the following clinical factors, such as GCS≤8, brain edema or basal skull fracture. Preven-tive measures should be given to these patients in advance.

Objective:To analyze the medication rule of Duan Fujin in the treatment of liver cirrhosis based on data mining method.Methods:By searching for and collecting the medical records of patients with liver cirrhosis treated by Traditional Chinese Medicine master Duan Fujin, counting the frequently used Chinese medicines and analyzing their association rules to carry out the system cluster analysis of frequently showed medicines, and to gain new prescriptions.Results:A total of 162 prescriptions of Professor Duan Fujin were collected, including 115 Chinese medicines, most of which are bitter and pungent in terms of taste. The medicines which are frequently used are Bupleuri Radix, Curcumae Radix, Poria, Trionycis Carapax, Glycyrrhizae Radix; the medicine pairs which are frequently appeared are Bupleuri Radix- Curcumae Radix, Bupleuri Radix- Poria, Curcumae Radix- Poria, Curcumae Radix- Trionycis Carapax, Bupleuri Radix- Trionycis Carapax, Curcumae Radix- Poria- Bupleuri Radix, Curcumae Radix- Trionycis Carapax- Bupleuri Radix, Curcumae Radix- Glycyrrhizae Radix- Bupleuri Radix, Bupleuri Radix- Chuanxiong Rhizoma- Curcumae Radix, Curcumae Radix- Trionycis Carapax- Poria, Bupleuri Radix- Trionycis Carapax- Poria. Cluster analysis shows that there are two new prescriptions: the first prescription plays the role of invigorating spleen and removing dampness, regulating qi and resolving phlegm, which is composed of Pinelliae Rhizoma, Citri Reticulatae Pericarpium, Glycyrrhizae Radix, Amomi Fructus, Aurantii Fructus, Poria, Atractylodis Macrocephalae Rhizoma, Ginseng Radix, Magnoliae Officinalis Cortex, Arecae Pericarpium, Hordei Fructus Germinatus, Crataegi Fructus; the second prescription plays the role of invigorating Qi and activating blood circulation, Ruanjian Sanjie, which is composed of Angelicae Sinensis Radix, Astragali Radix, Trionycis Carapax, Ostreae Concha, Curcumae Radix, Corydalis Rhizoma, Persicae Semen, Toosendan Fructus, Paeoniae Radix Rubra, Salviae Miltiorrhizae Radix, Curcumae Rhizoma, Moutan Cortex, Hedyotis diffusa Willd. Conclusion:The treatment of liver cirrhosis by Duan Fujin's mainly focuse on soothing and promoting the liver qi, softening the hard and disperse the knot, promoting blood circulation and removing blood stasis, strengthening the spleen qi and removing dampness.