1.Observation of the effect of bilevel positive airway pressure on patients with obstructive sleep apnea hypopnea syndrome complicated with stroke
Xun SUN ; Rongxia SANG ; Jun ZHAO
Clinical Medicine of China 2010;26(7):687-689
Objective To compare the effect between bilevel positive airway pressure (BiPAP) and routine drugs treatment to patients with obstructive sleep apnea hypopnea syndrome ( OSAHS ) complicated with stroke. Methods Twenty-nine patients with OSAHS complicated with stroke were randomly divided into two groups, 15 cases in the treatment group and 14 cases in the control group. Patients in the treatment group were applied BiPAP and routine drugs including degrading intracranial pressure, promoting blood flow, improving microcirculation. BiPAP were maintained for two months and over 10 hours daily. The control group was executed only routine drugs treatment. Results The difference of apnea hyponea index( AHI) and frequency of below 90% O2 saturation during sleep time between pre-therapy and post treatment was significantly higher in the treatment group(36. 8 ± 10. 7 and 105. 3 ± 17. 9) than in the control group (20. 8 ± 8. 1 and 44. 4 ± 24. 3 ) ( P < 0. 01 ) . The difference of lowest nighttime SaO2 between pre- and post-therapy was significantly higher in the treatment group( - 11. 7 ±8. 1)% than in control group(-2. 0 ± 8. 9) % ( P <0. 01). The difference of neurologic impairment score was significantly higher in the treatment group ( 16. 0 ± 2. 6) than in the control group ( 10. 1 ± 3. 6) ( P < 0. 01 ) . As for whole blood viscosity and red blood cell aggregation index,there was no significant difference between pre- and post-therapy(P> 0. 05). Conclusions BiPAP combined with routine drugs can significantly improve sleep anapnea indexs and neurologic impairment scores in patients with OSAHS complicated with stroke than only drug treatment. Blood rheology's indexs could not obtain amelioration in short period.
3.Effect of Glutamine on Expressions of Nuclear Factor-?B and Heat Shock Protein 70 in Brain of Young Rats Induced by Endotoxin
ya-juan, ZHAO ; jun, LI ; mei, SUN
Journal of Applied Clinical Pediatrics 2006;0(18):-
Objective To explore the effect of glutamine(Gln) on expression of nuclear factor kappa B(NF-?B) and heat shock protein 70(HSP70) in brain of young rats induced by lipopolysaccharide(LPS).Methods Ten days old Wistar rats were randomly divided into 3 groups by injection intraperitoneally different agonts,LPS group,normal saline control group(NS group) and Gln group(Gln 1.346 g/kg,1 hour before LPS).NF-?B and HSP70 distribution and expression in brain were deteted by immunohistochemistry.The levels of HSP70 in rats brain induced by LPS were detected by Western blot.SPSS 12.0 software was used.Results The nuclei of neuron in cerebral cortex in LPS group obviously cleared at 6 hours.The positive stain of nuclei in Gln group at 2 hours could not be seen.The stain of nuclei in cerebral cortex was weakened in LPS group at 6 hours by immunohistochemistry.HSP70 protein expression decreased with the measurement of Western blot,especially at 24 hours.HSP70 expression in LPS group was similar as that in NS group.The stain of nuclei in neuron in Gln group at 2 hours increased.It also showed the amount of protein expression increased in Western blot in group Gln at 2,6,12,24 hours(Pa
4.Evaluation of the efficacy of laparoscopic intrafascial hysterectomy
Ying SUN ; Jun ZHAO ; Aiming WANG
Journal of Medical Postgraduates 2003;0(09):-
Objective:To evaluate the efficacy of laparoscopic intrafascial hysterectomy.Methods:Thirty women underwent laparoscopic intrafascial hysterectomy(GroupⅠ),29 women underwent open intrafascial hysterectomy(GroupⅡ) and 30 underwent abdominal hysterectomy(Group Ⅲ) were compared.The operating time,blood loss,postoperative pain,postoperative morbidity,time to first flatus and emiction were analyzed.Results:The blood loss was in Group I(61.00?21.95)ml,respectively,it was significantly lower than those in the GroupⅡ(121.03?53.61)ml and Group Ⅲ(101.00?21.07) ml(P0.05).Conclusion:Laparoscopic intrafascial hysterectomy is truly a minimally invasive surgery,and was associated with significantly less intraoperative bleeding,shorter hospital stay with less morbidity and shorter convalescence period.This remains the obvious advantages of laparoscopic in comparison with abdominal hysterectomy.
5.Hantaan virus induces heat-shock protein 70 expression in brain of suckling mice and its correlation with viral proteins
Yujing SUN ; Shoujing YANG ; Jun ZHAO
Chinese Journal of Infectious Diseases 2000;0(02):-
Objective To study the impact of viral infection on stress protein gene expression and investigate the possibility that heat shock proteins interact with viral components during viral assembly in the brain of suckling mice experimentally infected with Hantaan virus (HV). Methods New born mice less than 72 h of age were inoculated into brain with the 100 LD50 of Hantaan virus (strain 76 118). At the 8th day mice died from brain disease. Brains were prepared for tissue sections and extracts for the experiments. The Hantaan virus infection, HSP70 induction and their co localization in brain of infected suckling mice were demonstrated by immunohistochemical staining and laser scan co focal microscopic double labling. The possible intereaction between HV structural proteins and HSP70 was further analyzed by immunoprecipitation of infected tissue extracts with antibodies to either HSP70 or to viral nuclear capsule proteins HV NP by using SDS PAGE and Western blotting. Results HV infection induced an increased levels of HSP70 expression at the cytoplasma of neurons in the brain of suckling mice HV NP protein proved to be co localized with HSP70. Monoclonal antibody (mAb) to HSP70 could co immunoprecipitate the HV NP, and similarly mAb to HV NP could co immunoprecipitate HSP70 from virus infected tissue extracts, but not from mock infected tissue extracts. Antibody, which recognized one of these two proteins, did not cross react with the other. Thus, the association between HSP70 and HV NP appeared to be specific.Conclusions Hantavirus infection can directly induce HSP70 expression, leading to the formation of HV HSP 70 viral antigen peptide complex which plays some roles in the course of viral infection and replication.
6.Preparation, transfer property and biocompatibility of the hollow fiber dialysis membrane
Shiying WANG ; Xinxin ZHAO ; Jun SHI ; Suxia YANG ; Zhiqiang SUN
Chinese Journal of Tissue Engineering Research 2017;21(2):268-272
BACKGROUND:Polysulfone membrane holds good anti-biodegradation ability, but how to use it to prepare hol ow fiber dialysis membrane and its blood compatibility have not been ful y understood. OBJECTIVE:To study the preparation, transfer property and biocompatibility of hol ow fiber dialysis membrane. METHODS:With polysulfone as the film material, diethylene glycol as the porogen, polyvinyl pyrrolidone as the modifier, N, N-dimethylacetamide as the solvent, and the hol ow fiber dialysis membrane was prepared using nonsolvent-induced phase separation. The performance was measured using scanning electron microscopy, ultra-depth three-dimensional microscope imaging and porosity test;the transfer parameters including reject rate and water flux were detected by ultrafiltration device;the blood compatibility was determined through hemolysis test, dynamic clotting time test and platelet adhesion test. Type II medical polyurethane material served as negative control. RESULTS AND CONCLUSION:The section of hol ow fiber dialysis membrane was asymmetric. 17%dialysis membrane showed a porous middle layer, while 19%, 21%and 23%membrane showed a sponge-like middle layer. Under the same membrane area, the density of fiber dialysis membrane was significantly lower than that of the negative control material, and the porosity of fiber dialysis membrane was significantly higher than that of the negative control material (P<0.05). The water volume and water flux of the hol ow fiber dialysis membrane were significantly higher than those of the negative control material (P<0.05). Results from three hemolytic tests showed that the average absorbance values and hemolysis rate of the hol ow fiber dialysis membrane were significantly higher than those of the negative control material (P<0.05). The dynamic clotting time test and the platelet adhesion test revealed that the dynamic clotting time of hol ow fiber dialysis membrane at 20, 40 and 70 minutes was significantly shorter than that of the negative control material (P<0.05). These results suggest that polysiloxane can be used as the membrane material to prepare hol ow fiber dialysis membrane using nonsolvent-induced phase separation, and holds a good biocompatibility, blood compatibility and transfer efficiency.
7.Comparison of the results of transurethral plasmakinetic resection versus transurethral resection of the prostate for benign prostatic hyperplasia
Xiaofeng ZHAO ; Xiaofei SUN ; Zhihong LU ; Jun WANG ; Liang LIU
Chinese Journal of Urology 2001;0(09):-
Objective To compare the clinical efficacy and safety of transurethral plasmakinetic resection of prostate (PKRP) and transurethral resection of prostate (TURP) for benign prostatic hyperplasia (BPH). Methods Two groups of BPH patients (78 patients in each group) were treated by PKRP and TURP,respectively. The clinical efficacy and safety indices were reviewed and compared for both intra- and inter-groups. Results In PKRP group,the operative time,intraoperative bleeding, the rates of postoperative temporary urinary incontinence (within 2 months) ,secondary hemorrhage (within 4 weeks),and urethral stricture (within 3 months) were ( 64?21) min, ( 247?84) ml, 26. 9% ( 21/78 ) , 1. 3% ( 1/78 ) and 2.6% (2/78) ,respectively; while in TURP group, these parameters were (78?18) min, (432?132) ml, 48.7% (38/78) , 10. 3% (8/78) and 12. 8% ( 10/78 ), respectively; there were significant differences between the 2 groups (P 0. 05). Conclusions PKRP and TURP have similar efficacy in the treatment of BPH,but PKRP is safer than TURP. Thus,PKRP is a better treatment option for BPH.
8.Transfection and expression of murine interleukin-12 gene in B16F10 melanoma cells
Jun ZHAO ; Fenyong SUN ; Chen LI ; Yanling YAN ; Yife ZHANG
Chinese Journal of Pathophysiology 2000;0(08):-
AIM: To study the expression of murine interleukin-12(mIL-12) gene in B16F10 melanoma cells. METHODS: mIL-12 gene was inserted into pcDNA3.1 eukaryotic expression vector by DNA recombination and then transfected into B16F10 melanoma cells by electroporation. The integration and expression of mIL-12 gene in B16F10 melanoma cells were detected by PCR,RT-PCR and Western blot after positive cell clones had been screened. RESULTS: mIL-12 gene was confirmed to have been transfected and expressed in B16F10 cells on three levels of DNA, mRNA and protein. CONCLUSION: mIL-12 gene can successfully be transfected and expressed in B16F10 melanoma cells in vitro , which lays a foundation for the further investigation of mIL-12 gene tumor vaccine.
9.Construction and expression of retroviral vector containing mIL-12 gene
Lina HUANG ; Jun ZHAO ; Fenyong SUN ; Chen LI ; Yifei ZHANG
Chinese Journal of Pathophysiology 1989;0(06):-
AIM: To construct retroviral expression vector pLXmIL-12SN containing mouse IL-12 (mIL-12) gene and detect the gene expression in B16F10 cells. METHODS: Vector pGCp35-IRES-p40SN was digested to obtain p35-IRES-p40 (mIL-12 gene fragment) and retroviral vector pLXSN was digested by restriction enzyme, and then they were linked by ligase. The recombinant vector that mIL-12 gene fragment had correctly been inserted into pLXSN was identified by sequencing. The recombination vector with mIL-12 gene was transfected into B16F10 cell and was detected by RT-PCR. RESULTS: Expression vector pLXmIL-12SN was successfully constructed. mIL-12 gene was confirmed to express in B16F10 cells at the level of mRNA. CONCLUSION: Acquired vector pLXmIL-12SN and confirmed mIL-12 gene expression lays a foundation for mIL-12 gene therapy to eye diseases.
10.Clinical research on the effect of abdominal Tuina and acupuncture in treating Swiss generalized anxiety disorder
Xueyuan ZHAO ; Jun LIANG ; Wei FANG ; Qing SUN
International Journal of Traditional Chinese Medicine 2010;32(3):241-242
Objective To observe the clinical effect of abdominal Tuina and acupuncture in treating Swiss generalized anxiety disorder (GAD). Methods 80 patients of GAD caused by liver depression-qi stagnation were randomly recruited into a treatment group and a control group, 40 patients in each. The treatment group was treated with abdominal tuina & acupuncture; while the control group was treated with acupuncture exclusively. Clinical effects and hamilton anxiety scale (HAMA) score were observed in both groups before and after the treatment. Results ①There was significant difference in total efficacy between the two groups CP<0.05), and the treatment group was better than the control group. ②The HAMA score of the two groups after the treatment was lower than that before the treatment, and the difference was significant (P< 0.05). There was also significant difference of HAMA score between the two groups after the treatment (/><0.05), with the treatment group showing better results than the control group. Conclusion Abdominal tuina combined with acupuncture has sound effects in treating Swiss GAD due to liver depression-qi stagnation.