Adult ; Diagnostic Tests, Routine ; Female ; Hearing Loss, Sensorineural ; Humans ; Pedigree ; Thrombocytopenia ; diagnosis ; genetics

Objective To examine the effects of intravenous thrombolysis with Tissue-type plasminogen activator (rt-PA) combined with mild hypothermia therapy on patients with acute cerebral infarction and further investigate under?lying mechanism for the treatment of cerebral infarction. Methods Sixty cases of cerebral infarction patients were random?ly divided into three groups with 20 patients in each group:①The control group was given rt-PA intravenous thromboly?sis;②The treatment group 1:intravenous thrombolytic therapy combined with local mild hypothermia treatment for 12 h;③The treatment group 2:intravenous thrombolytic therapy and local mild hypothermia in the treatment of 24 h. We col?lected NIHSS score before and after thrombolytic therapy, patient monitoring (ICP) changes during thrombolytic therapy, March (MRS) score and complications during follow-up after thrombolysis, The serum levels of SOD and MDA were as? sessed before and after thrombolytic therapy. Results NIHSS score was lower in both treatment group 1 and treatment group 2 than in the control group (P<0.05) at 72 h, 7 d, 14 d after thrombolysis. MRS was lower in both treatment group 1 and treatment group 2 than in the control group (P<0.05) at 3 months after thrombolytic therapy. MRS were lower in treat?ment group 2 than in the treatment group 1 (P<0.05). ICP in treatment group 1 and the concentration of MDA in treat?ment group 2 were lower, compared with control group (P<0.05) at 24 h, 72 h and 7 d after thrombolysis. ICP was lower in treatment group 2 than treatment group 1 at 7d after thrombolysis. The concentration of SOD was higher in treatment groups than in control group (P<0.05) at 24, 72 h and 7d after thrombolysis. ICP and MDA concentration were lower in treatment group 2 than in treatment group 1(P<0.05) at 72h and 7d after thrombolysis. The concentration of SOD was higher in treatment group 2 than in the treatment group 1 at 7 d after thrombolysis (P<0.05). There was no significant dif?ference in adverse events and mortality among groups (P>0.05). Conclusion Rt-PA intravenous thrombolysis combined with mild hypothermia treatment can improve the prognosis of patients with cerebral infarction without increasing the inci?dence of adverse reactions. In addition, thrombolysis combined with mild hypothermia 24 h has better effect than with mild hypothermia 12 h. The beneficial effects may be accomplished by reducing oxidative stress reaction.

ObjectiveTo prospectively compare the effects of Prestige LP cervical disc replacement with those of anterior cervical discectomy and fusion (ACDF) in treatment of cervical disc herniation.MethodsFrom January 2008 to March 2010,a total of 87 patients were enrolled at our site as study investigating ACDF versus Prestige LP cervical disc prosthesis.Forty-four patients received the investigational device (arthroplasty group) and 43 underwent a single-level ACDF (fusion group).Visual analogue scale(VAS) neck/arm pain,Japanese Orthopedics Association (JOA) score,Short Form-36 (SF-36) both physical and mental,flexion-extension range of motion of operative and adjacent segments were evaluated preoperatively and 1 week and 3,6,12,24 months postoperatively.ResultsA total of 78 patients (89.7％) were followed up for an average 12.4 months(range,6-24).Both groups have favorably demonstrated improved functional outcomes for JOA,VAS scores and SF-36.The improvement in the VAS and JOA scores were equivalent at each follow-up point between the two groups(P＞0.05).However,arthroplasty group had statistically significant improvement as assessed by the SF-36 scores compared with the fusion group at some follow-up points (P＜0.05).In arthroplasty group,the postoperative range of motion of operative and adjacent segments showed no statistical difference with the preoperative counterpart(P＞0.05),and fusion was successful in 92.1％ of control patients.ConclusionPrestige LP cervical disc replacement is a feasible alternative to ACDF for patients with persistently symptomatic cervical disc disease and matching the inclusion criteria.

Background Pupillary light reflex has been widely used in the diagnosis and evaluation of visual system and nervous system diseases.However,in animal experiments,functional evaluation of the visual system and nervous system needs more advanced technology and are affected by many factors.Objective This study was to explore the use of the dynamic pupillometer in evaluating pupillary light reflex and to discuss the influence of brightness of stimulate on relevant curve parameters in C57BL/6 mouse.Methods Ten healthy SPF male C57BL/6 mice were collected in this experiment.White light of five luminance levels (2,8,32,128,256 cd/m2) was used to stimulate the mice following a 2-hour dark adaptation.The stimulation was given at the 60-second intervals,for a duration of 100 ms at every stimulation.An infrared camera and video capture card were used to capture digital images during the measuring process in a scotopic environment,at a speed of 60 frames per second.Measuring outcome was saved in the*.AVI format.A software that was developed by our group was used to determine pupil diameter and output pupillary light reflex curve offline.Pupil initial diameter (R1),constriction amplitude (CA),constriction velocity (CV),latency (T1),time for maximum velocity (T2),time for maximum constriction (T3),time for maximun con-striction to 10.1％ R1 re-dilation (RT)and re-dilation velocity (RV)were assessed,and the correlations between luminosity and measuring parameters were analyzed using the Spearman rank correlation.The use of animals followed the Regulations for thd Administration of Affairs Concerning Experimental Animals by State Science and Technology Commission.Results R1 values showed no statistically significant difference among the 5 different luminosity groups(F=1.117,P=0.361).A positive linear correlation was found between stimulating luminosity and CA(r=0.508,P＜ 0.01),but negative correlations were seen between stimulating luminosity and CV or RV (r=-0.625,-0.609,P＜0.01).T1 and T2 values in the 5 different luminosity groups were not statistically significant (F =0.202,P =0.936 ; F =1.584,P =0.195).The different levels of stimulating luminosity showed positive linear correlations with T3 and RT values (r =0.791,0.609,P＜ 0.01).Conclusions The dynamic pupillometer can quantitatively measure the pupillary light reflex of C57BL/6 mice.The pupillary light reflex dynamic curve parameters of mouse were affected by stimulus luminosity levels.These outcomes offer a basis for the application of the dynamic pupillometer system for measuring pupillary light reflex in animal models.

Objective To study the characteristics of heterotopic heart transplantation by echocardiographyand evaluate the heart function and acute rejection.Methods Five male 49-61 years old patients with heterotopic heart transplantation were studied using echocardiography pre-,intra-,post～operation and at follow-up.The anastomoses of great vessels of recipient with donor heart,chamber size,left ventricular wall thickness with wallmotion.left ventricular ejection fraction(LVEF),valvular function,pulmonary artery pressure,pericardial and pleural effusion were observed.Results All patients were end-stage coronary artery disease with NYHA class of received heterotopic heart transplantation with coronary artery bypass grafting.Some patients received mitral valvuloplasty,ventricular aneurysmectomy and stem cell transplantation simultaneously.During the operation,intra-operation transesophageal echocardiography was used to monitor and evaluate the surgical procedure with chamber sizes,anastomoses,native with donor heart ventricular and valvular function,and air bubble in chambers.The cardiac functions of donor heart backed to normal post operation,while the functions of recipient heart were increased gradually.All patients survived in 6 months and one year follow-up,with significantly improved functions of heart in situ[LVEF(44.0±15.6)%].The main reject reaction was small pericardial perfusion and pleural effusion.Conclusions Heterotopic heart transplantation has distinctive characteristics with echocardiography study,which is also an important technique in evaluation at pre-,intra-,post-operation and also at follow-up.

Objective To report treatment of infectious bone and soft tissue defects caused by tibial shaft fracture of Gustilo type Ⅲ B using free flap and Ilizarov bone transport.Methods Nineteen patients who had suffered from infectious bone and soft tissue defects following tibial shaft fracture of Gustilo type Ⅲ11 B were treated from May 2010 to February 2015.They were 15 men and 4 women,aged from 21 to 58 years (average,45.3 years).Their course of disease ranged from 16 to 21 months,averaging 17.9 months.The area of their infectious defects ranged from 10 cm × 6 cm to 21 cm × 12 cm,and the length of their bone defects from 5 to 11 cm (average,7.4 cm).They were treated with debridement,simple external fixation to reconstruct bony support,coverage of wounds with free flap,and stuffing the dead space with antibiotic concrete beads,followed by Ilizarov bone transport and bone graft after control of infection to reconstruct the defective tibia and function of the affected limb.Results All the flaps survived.Necrosis occurred at the distal margin of one flap but responded to dressing.Pin tract infection occurred in 4 cases but also responded to dressing and antibiotic therapy.Autografts of iliac cancellous bone were implanted into the gliding and traction ends of the bone fragments one month after bone transport had come to rest.All the patients achieved direct bony union.The patients were followed up for an average of 25 months(range,from 19 to 36 months).No secondary fractures or angular deformity was observed.The total treatment time averaged 17.9 months,with no recurrence of infection.According to the Puno score system for functional evaluation at the last follow-up,7 cases were rated as excellent,6 as good and 6 as fair.Conclusion The infectious bone and soft tissue defects caused by tibial shaft fracture of Gustilo type Ⅲ B can be treated by free flap and Ilizarov bone transport,resulting in definitely positive outcomes.

Objective To clone the coding region and 3′non?coding region of calmodulin 2(CaM2)in guinea pig,to provide the genetic informa?tion for studying the gene function of Calmodulin 2. Methods Total RNA was extracted from heart tissue of guinea pig,the coding region and 3′non?coding region of CaM2 were amplified by RT?PCR and 3′?RACE PCR methods,and the recombinant plasmid was constructed by inserting cDNA of the coding region and 3′non?coding region of CaM2 into the cloning vector by genetic engineering technology followed by DNA sequencing and se?quence analysis. Results The cloned coding region of CaM2 was 450 bp,and the 3′non?coding region of CaM2 was 660 bp. The amino acid se?quences of the coding region of CaM2 was consistent with those of other CaM subtypes,and the 3′non?coding region of CaM2 had low homology with those of other subtypes. Conclusion The cloning of CaM2 coding region and 3′non?coding region in guinea pig was the foundation for further study on the gene function of CaM2 and its role in related diseases.

Objective To investigate the expression and the clinical significance of Lewis y antigen and Mucin 1 (MUC1),as well as to evaluate the correlation between them in epithelial ovarian tumor.Methods The expression of Lewis y antigen and MUC1 in 60 cases of epithelial ovarian malignant tumors,30 cases of borderline ovarian tumors,30 cases of benign ovarian tumors and 20 cases of normal ovarian tissues were detected by immunohistochemical staining.The relationship between Lewis y antigen and MUC1,and their relationship with biology characteristic of ovarian carcinoma were analyzed.An immunofluorescence double labeling methods was performed to detect the correlation between Lewis y antigen and MUC1.Results In malignant epithelial ovarian tumors,the positive rates of Lewis y antigen was 88.33％,which was significantly higher than the positive rates in borderline(60.00％,x2 =9.6405,P ＜0.01) and benign ovarian tumors(33.33％,x2 =28.8095,P ＜0.01) and normal ovarian samples (0,x2 =52.3457,P ＜ 0.01).The positive rates of Lewis y antigen had nothing to do with the clinical pathological parameters of ovarian tumor,but the expression intensity of Lewis yantigen was increased with the development of the malignant degree(P ＜ 0.05).The positive rates of MUC1 in malignant epithelial ovarian tumors was also significantly higher than that in borderline,benign ovarian tumors and normal ovarian samples (86.67％ vs 53.33％,30.00％,25.00％,x2 =12.0321,29.4064,27.8464 ; P ＜0.01).And the expression intensity of MUC1 also increased with the development of clinical stage(P ＜0.01),but had nothing to do with the lymph node metastasis and histological grade(P ＞ 0.05).In ovarian cancer,both Lewis y antigen and MUC1 were highly expressed,and their expression levels were positively correlated (r =0.707,P ＜0.01),and Lewis y antigen colocalized with MUC1.Conclusion Both Lewis y antigen and MUC1 are associated with the occurrence and development of ovarian cancer.Lewis y antigen and MUC1 might be a sigh of biological behavior in ovarian cancers,and this study provides theoretical evidence of ovarian cancer biological treatment.

Objective To explore whether dithiothreitol(DTT)is helpful for PreScission Protease to cut off the GST from GST?CT3 protein. Meth?ods The pGEX?6P?3/CT3 recombinant plasmid was transfected into Escherichia coli BL21,and the GST?CT3 fusion protein was purified by B?PER method. PreScission Protease was applied with 10 mmol/L DTT to cut off the GST,then the SDS?PAGE was performed for identification of the CT3 protein. Results Without DTT,it was very difficult for PreScission Protease to cut off the GST from GST?CT3 protein. However,in the pres?ence of 10 mmol/L DTT,PreScission Protease could cut off the GST easily as identified by SDS?PAGE. Conclusion 10 mmol/L DTT can help Pre?Scission Protease to cut GST from GST?CT3 protein,so as to achieve high concentration of CT3.

Secondary metabolites are the result of that plant interaction with biological and non-biological factors in the long-term evolution process, and play an important role in plant growth, development and physiology. The effective components of medicinal plant are usually the secondary metabolites in plant cells, and the synthesis of them are affected by a variety of factors, such as environmental impact. Acquirement of the secondary metabolites via callus culture has the advantage of low cost and less environmental impact. The synthesis and accumulation of medicinal plant secondary metabolites are not only controlled by light, temperature and pH, but also infected by germplasm, plant growth regulator and elicitor. This article presents a review of the influencing factors, and provides a basis for further study and development.
Light ; Plant Growth Regulators ; metabolism ; Plant Physiological Phenomena ; radiation effects ; Plants ; metabolism ; radiation effects ; Temperature