Ocular ischemic syndrome(OIS) is a disease seen in cardiology,ophthalmology,neurology and neurosurgery,which is characteristic by brain and ocular symptoms caused by carotid artery obstruction or stenosis.The diagnosis of OIS may be difficult because of its variable presentations and its concealed onset.What is more,its pathogenesis is not completely clear,and therefore its treating efficacy is dissatisfactory so far.The current study on OIS is focused on experimental research.So establishment of suitable animal model is important.Recently years,the creating method of OIS model made a great progress.The selection of model animals,extablishing methods of models and comparison of various models were summarized.

Background Fungal keratitis can cause serious damage to visual function of corneal infective disease,which is more difficult to treat.In recent years,injecting antifungal drugs to the corneal stroma not only enrich the treatment of the disease,but also achieve good clinical effects.Correctly selecting drug kinds and drug concentration can improve the cure rate,and reduce adverse reactions after treatment,but the related research is rare.Objective This study was to observe the clinical effects of corneal stroma fluconazole injection with different concentration for the treatment of fungal keratitis.Methods Prospective study was performed.One hundred and two patients (102 eyes) diagnosed as fungal keratitis were included from May 2012 to January 2015 in Jizhong Energy Xingtai Mining General Hospital.The patients were randomly divided into 3 groups,The eyedrop treatment group (29 eyes) received 0.5％ fluconazole eyedrops and 5％ natamycin eyedrops treatment.The 0.1％ fluconazole group (35 eyes) and 0.2％ fluconazole group (38 eyes) received 0.1％ and 0.2％ fluconazole corneal stroma injection after eyedrop treatment,respectively.Each group underwent potassium hydroxide wet examination and fungal cultures.The curative effect and adverse reactions were observed.Results Fusarium 41.2％ (42/102),Aspergillus 21.6％ (22/102)and Alternaria mold 17.6％ (18/102) ranked the top three pathogenic species.The distribution of pathogenic fungus among the 3 groups were significantly different (x2 =3.763,P＞0.05).The cure rate of eyedrop treatment group was 44.8％ (13/49),which was significantly lower than 0.1％ fluconazole group (74.3％,26/35) and 0.2％ fluconazole group (81.6％,31/38) (x2 =5.782,9.854;both at P＜0.05).The cure rate was significantly different between 0.1％ fluconazole group and 0.2％ fluconazole group (x2=0.566,P＞0.05).The average cure time of eyedrop treatment group,0.1％ fluconazole group and 0.2％ fluconazole group were (36.28 ± 10.39),(29.14± 7.86) and (21.34 ± 8.57) days,respectively,with a significant difference among the three groups (F =5.336,P=0.006).The acuity of vision was significantly increased after treatment in the 0.1％ fluconazole group and 0.2％ fluconazole group (t =3.009,4.695;both at P ＜ 0.01).The average number of injection in the 0.1％ fluconazole group was (5.71 ± 2.97) times,which was higher than (5.13 ± 1.80) times in the 0.2％ fluconazole group (t=4.471,P＜0.05).Four cases in 0.2％ fluconazole group with eye irritation were observed.After diclofenac sodium eyedrops treatment,the symptoms of 3 cases were disappeared.One case was cured by conjunctival flap covering method.All the cases were followed up for 1-3 months,no adverse reactions and recurrence was found.Conclusions Corneal stroma fluconazole injection is an effective method for treatment of fungal keratitis.In order to reduce the occurrence of adverse reactions,0.1％ fluconazole injection in corneal stroma is recommend for light fungal keratitis patients;for moderate and heavy fungal keratitis patients,0.2％ fluconazole injection in corneal stroma can be performed after failure of 0.1％ fluconazole treatment.

Objective To investigate the low back pain(LBP)of clinic nurses and find out the understanding of related knowledge of LBP in nurses,and improve the occupational protection of nurses.Methods Investigation was carried out in 692 nurses by self-designed questionnaires.Results The incidence of LBP in nurses was 97.4%.The knowledge of LBP and the related occupational protection in nurses were greatly deficient.Conclusions The hospital should pay attention to the protection of LBP in nurses and improve their health.

Objective:To study the expression of IQ motif containing GTPase activating protein 1 (IQGAP1 )in oral squamous cell cancer(OSCC)tissue,and to explore the effects of IQGAP1 on cell proliferation and invasion as well as its underlying mechanism. Methods:Expression levels of IQGAP1 in tumor and adjacent normal tissues were examined by western blot and RT-PCR.OSCC cell line SCC-4 cells was transfected with the recombinant plasmid-pcDNA3.1 -IQGAP1 by lipofectamine,and then treated with an Akt in-hibitor.The phosphorylation of Akt,cell proliferation and invasion were detected by western blot,MTT assay and Transwell invasion as-say respectively.Results:Protein and mRNA expression levels of IQGAP1 were higher in cancer tissue than in adjacent normal tissue (P <0.05).Transfection of pcDNA3.1 -IQGAP1 increased IQGAP1 expression,enhanced the capability of cell proliferation and inva-sion (P <0.05),increased p Akt level in the cells.Preconditioning with an Akt inhibitor reduced p Akt level.Furthermore,silencing Akt pathway blocked the increase of cell proliferation and invasion induced by IQGAP1 overexpression(P <0.05).Conclusion:IQ-GAP1 overexprission can mediate the ability of proliferation and invasion of OSCC cells by regulating the activation of Akt pathway.

Biomarkers ; Hepatitis B ; therapy ; virology ; Hepatitis B Surface Antigens ; Hepatitis B virus ; Humans

Objective:To find a better way to protect the security and interests of vulnerable groups by exploring the problem of protecting the vulnerable groups in drug clinical trial from the perspectives of ethics committees,organization and researchers.Methods:According to the relevant literature and the actual situation of the hospital,this paper analyzed the security issues of vulnerable groups comprehensively.Results:Only the ethics committees,organization and researchers work together,can it protect the security and interests of vulnerable groups to the greatest extents.Conclusion:Further research on the security of vulnerable groups not only promotes the development of human health,but also plays a decisive role in improving the protection of subjects in drug clinical trial.

Objective:To observe the effects of prolonged transient acidosis on cardiac hemodynamics in aged rat heart after reperfusion injury.Methods:60 isolated SD rats hearts(≥18 months)perfused by Langendorff were randomly divided into 6 groups(n=10):(1)normal contro1(C)group;(2)reperfusion injury(I/R)group;(3)ischemic postconditioning(IPO)group;(4)acidosis(H+)group;(5)postconditioning+alkalotic(IPO+OH-)group;(6)alkalotic(OH-)group.The direct effects of prolonged transient acidosis on myocardiac contractility were observed by a langendorff apparatus through the hemodynamics parameters including heart rate(HR),left ventricular systolic pressure(LVSP),left ventricular end-diastolic pressure(LVEDP),and ?dp/dtmax.Results:The LVEDP were increased and HR,LVSP,?dp/dtmax were decreased in I/R group,IPO group,H+ group,IPO+OH-group and OH-group compared with those in C group(P

Objective:To observe the change of immunity in vivo after Vitreous cryopreservation with tetramethylpyrazine nerve allograft was implanted into the recipient so as to judge its immunogenicity.Methods:Sciatic nerves of Sprague-Dawley rats were resected and made by Vitreous cryopreservation with tetramethylpyrazin.The nerves from Sprague-Dawley rats were implanted into the dorsal and ventral subcutis of Wistar rats in experimental group。Fresh nerves from Sprague-Dawley rats were implanted into the dorsal and ventral subcutis of Sprague-Dawley rats in control group respectively.T lymphoeytes infiltraion in isograft nerve was investigated by immunohis-tochemical Methods:staining CD4 and CD8 positive T lymphocytes with anti-CD4 and CD8 monoclonal antibodies(MoAb).Results:320 mg/L tetramethylpyrazine combined vitreous cryopreservation stainings at-20℃for 3 weeks showed that the number of CD4 and CD8 positive T lymphocytes infiltrated into the nerve implants of the experimental group was much lower than that of other tetramethylpyrazine combined vitreous cryopreservation in the control group.there was no marked difference of the 320mg/L tetramethylpyrazine combined vitreous cryopreservation stainings at-20℃for 3 weeks nerves group compared with autografting group.Conclusion:The nerve treated by 320 mg/L tetramethylpyrazine combined vitreous cryopreservation at-20℃for 3 weeks shoued lower immunogenicity after implanta-tion,and there was no significant rejection response after transplantation in rats.

AIM:To establish the method for quality control of Jueming Jiangzhi Tablet(Semen Cassiae,Radix Polygoni multiflori,Herba Taxilli,Herba Artemisiae scopariae,etc.).METHODS:Radix Polygoni multiflori、 Herba Taxilli、 Herba Artemisiae scopariae、Semen Cassiae were identified by TLC.HPLC method for determining emodin and 2,3,5,4'-tetrahydroxydiphenylethylenic-2-O-?-D-glucoside in Jueming Jiangzhi Tablet were established.A Dikma Diamonsil C_ 18 column was used,the mobile phases were methanol-0.1% phosphate solution(85∶15)and acetonitrile-water solution(5∶15),respectively.The flow rate was 1.0 mL/min.The detection wavelength was at 254 nm and 320 nm,respectively.RESULTS:The spots on the TLC plate were clear.The negative control sample didn't disturb.A good linearity was obtained for emodin in the range of 0.131 2-1.312 0 ?g,r= 0.999 8.The average recovery was 99.80%,RSD=1.17%(n=6).A good linearity was obtained for 2,3,5,4'-tetrahydroxydiphenylethylenic-2-O-?-D-glucoside in the range of 0.580 0-5.800 0 ?g,r=0.999 8.The average recovery was 98.68%,RSD=1.36%(n=6).CONCLUSION:The methods are specific,accurate and reproducible,and can be used for the quality control of the product.

Objective:To Study the expressions of Matrix metalloproteinase-9(MMP-9)in human dental pulps in patients under the effects of orthodontic forces.Methods:10 orthodontic patients were selected,the orthodontic teeth to be extracted were decided before orthodontic treatments had started.One side of the orthoodontic tooth underwent routine orthodontic forces.The teeth were extracted within 1 to 7 days after orthodontic forces had been used.There were 20 teeth as under-forces group.The other side of the pre-extracted teeth did not receive any orthodontic forces.There are also 20 teeth as homologized control group.20 third molares clinically diagnosed with endodontitis and without worth of remaining were as inflamed group.Iimmunohistochemical streptavidin peroxidase method(SP method) was used.The expression of MMP-9 was analyzed by analysing images and half-quantitative analysis.Results:There was expression of MMP-9 in control,under-forces and inflamed groups.In under-forces pulpal tissues,MMP-9 was mainly expressed in odontoblasts and fibroblasts.In under-forces pulps,the expression of MMP-9 was manifestly stronger than that of controls,but weaker than that of the inflamed one.The differences among the three groups had statistical significance(P