Background Small incision cataract surgery combined with intraocular lens (IOL) implantation remains a popular way for cataract.However,some factors affect the postsurgical visual outcomes and lower the patients' satisfaction,including intraoperative and postoperative complications as well as corneal refractive and thickness changes.Objective This study was to evaluate the influence of corneal refractive and thickness changes on visual fluctuation after 2.6 mm temporal incision surgery for cataract.Methods A series cases-observational study was designed.Twenty-nine eyes of 25 age-related cataract patients received 2.6 mm temporal transparent incision phacoemulsification and IOL implantation from November,2011 through April,2012 in Eye & ENT Hospital of Fudan University under the informed consent.The uncorrected visual acuity (UCVA),best corrected visual acuity (BCVA),automatic and subjective refraction were examined,and the central corneal thickness (CCT) and corneal vector astigmatism were measured using Pentacam analysis system before and after operation.The examination outcomes were compared among different time points,and the influencing factors of UCVA or BCVA were analyzed.Results The mean UCVA (LogMAR) was 0.52±0.06 in 1 day and 0.64±0.07 in 2 months after surgery,with a significant difference between them (t=-3.051,P＜0.05).The mean BCVA (LogMAR) was 0.24±0.04 and 0.13± 0.04 in postoperative 1 day and 2 months,showing a significant difference between them (t =-3.031,P＜0.05).Spherical equivalents (SE) were (-1.74±0.28) D,(-1.99±0.27) D and (-1.69±0.24) D in postoperative 1 day,14 days and 60 days,respectively,with a significant difference among the 3 time points (F =3.562,P =0.039),and significant difference also was found between postoperative 1 day and 14 days (t =2.515,P＜0.05) or between postoperative 14 days and 60 days (t =-2.987,P ＜ 0.05).The preoperative J0 value was (0.06 ± 0.06) D,and postoperative J0 value was (0.29±0.08) D on the first day,which was significant higher than that in preoperation (t =-4.625,P＜0.01).In addition,J0 value showed a significant difference between postoperative 1 day and 14 days (t=-7.858,P＜0.01) as well as between postoperative 14 days and 2 months ([0.38±0.07] D versus [0.27±0.07] D,t=-5.649,P＜0.01).The mean CCT was (547.1±25.3) μm,(599.4±56.9) μm,(557.0±27.1) μm and (551.0 ± 25.9) μm before and 1 day,14 and 60 days after operation,with significant differences among the various time points (F =9.792,P ＜ 0.001),and significant differences also were seen in the CCT between preoperation and postoperative 1 day (t =-5.116,P＜0.01),between postoperative 1 day and 14 days (t =4.135,P＜ 0.01),between postoperative 14 days and 60 days (t=2.082,P＜0.05).UCVA=0.513-1.183×C J45(F=16.724;t=-4.089,P=0.026) and BCVA=-1.314+0.003×CCT (F=22.322;t=4.725,P=0.018).Conclusions The UCVA remains a downward trend,and BCVA sustains upward trend after 2.6 mm temporal transparent incision phacoemulsification combined with IOL implantation surgery.Postoperative UCVA is affected by corneal astigmatism change,while BCVA is influenced by CCT change.

Objective:To investigate the possible association between Thr241Met polymorphism in the DNA repair gene X-ray repair cross-complementing group 3 (XRCC3) with genetic susceptibility to glioma in a Chinese Han population living in Shanghai and the surrounding provinces in east China. Methods: Genotyping by a TaqMan assay was performed in 771 brain glioma patients living in Shanghai and the surrounding provinces (Jiangsu.Zhejiang, Anhui.etc. )and in 752 control participants matched in age and gender. The genotyping results of TaqMan assay and the association between Thr241Met polymorphism in the DNA repair gene XRCC3 with genetic susceptibility to glioma were statistically analyzed. Results: Genotypes of 1 468 subjects (760 with brain glioma and 708 were cancer-free control) were successfully performed by TaqMan assay, with the successful rate being 96.4%. Statistical analysis result showed that gene(C/T) and genotype(C/CT/CT/T) frequencies of XRCC3 were not significantly different between the glioma and cancer-free groups. Compared with the CC genotype, the variant TC(P = 0. 909; adjusted by age and gender OR = 0. 981; 95%CI = 0. 701-1. 371) or TT(P=0. 642; adjusted by age and gender OR = 0. 7; 95%CI = 0. 156-3. 146) genotypes of XRCC3 Thr241Met were associated with a non-statistically significant increase of glioma risk. Conclusion: The variant TC or TT genotypes of XRCC3 Thr241Met may not be risk factors for brain glioma in Chinese Han population living in Shanghai and the surrounding provinces in east China.

Objective To investigate the nursing of traumatic carotid-cavernous fistula(TCCF)by intervention.Methods 18 patients with TCCF by intervention were given nursing measures including psychological preparation,eye care,disease observation and complications care.Results All patients gained successful embolization,and the symptoms of proptosis and vascular murmur in patients were alleviated.One case received spring embolism because of balloon rupture.The symptoms of vascular spasm in two patients were alleviated with timely treatment.Hyperperfusion syndrome was relieved after lowering blood pressure in two patients.Conclusions The intervention embolization is an effective treatment of TCCF.Good nursing could improve the efficacy and reduce the incidence of complications.

To investigate the anti-vasculature effects and the anti-glioma effects of attenuated Salmonella typhimurium vaccine strain expressing VEGFR2 (flk-1) gene, plasmid pcDNA3.1-flk1 was constructed and electro-transfected into live attenuated Salmonella typhimurium strain SL7207. Mouse models of intracranial G1261 glioblastoma were treated with an orally administered attenuated Salmonella typhimurium expressing flk-1 gene. The survival period was recorded and vessel density was observed by immunofluorescence. CTLs activity was measured by MTT assay. Our results showed that attenuated Salmonella typhimurium vaccine strain expressing flk-1 gene could significantly inhibit glioblastoma growth, reduce vessel density, prolong the survival period and improve the survival rate in these mice. The flk-1 specific CTLs activity was increased obviously after the vaccination. Our study showed that attenuated Salmonella typhimurium vaccine strain expressing flk-1 gene could break peripheral immune tolerance a in glioma gainst this self-antigen and kill endothelial cells by the orally administered vaccine and can be used for both prophylactic and therapeutic purposes.
Angiogenesis Inhibitors ; pharmacology ; Animals ; Brain Neoplasms ; blood supply ; therapy ; Female ; Glioma ; blood supply ; therapy ; Mice ; Mice, Inbred C57BL ; Neovascularization, Pathologic ; Salmonella Vaccines ; immunology ; pharmacology ; Salmonella typhimurium ; immunology ; Transformation, Genetic ; Vaccines, Attenuated ; genetics ; immunology ; pharmacology ; Vascular Endothelial Growth Factor Receptor-2 ; genetics ; immunology

Objective To investigate the apoptosis-inducing effect of myxoma virus in the human endometrial cancer HEC-IB cell line.Method A morphological analysis,nuclear condensation,and fragmentation of chromatin were monitored using immunofluorescence staining.Cell viability was assessed using MTT assay.Cell apoptosis and the apoptosis-related activation in the HEC-IB cell line were evaluated by flow cytometry and Western blotting,Result Suppressed the proliferation of the HEC-IB cell line in a time-dependent manner.The obvious inhibiting effect of MV on HEC-IB cells viability and its apoptosisinducing effect were observed.MV treatment downregulated the activation of protein kinase B (AKT) and the expression of glycogen synthase kinase 3 (GSK3),Conclusion MV induced apoptosis involved several molecular pathways.It may suppress constitutively activated targets of phoaphatidylinositol-3-kinases (PI3K) and AKT in the HEC-IB cell line,inhibiting the proliferation and induction of apoptosis.

Objective Explored the effects of Myxoma virus in endometrial cancer of Nude Mouse animal model in vivo.Methods CD-1 Nude mice were randomly divided into three groups with 8 mice eachgroup and established mice models of endometrial carcinoma,and group M was administrated by1 × 107PFU MV(10 μl)QOD,the other 2 group (group D and group B) was administrated by 10μl dead virus and normalsaline,respectively.The time of tumorigenesis,tumorformationrates and the tumor volumes were observed,and theP13K,Akt expression changes in nude mice models of endometrialcarcinoma were assessed by immunohistochemical method.Results The endometrial cancer in all nude mice were established successfully.And tumor growth in group M were significantly decreased than group D and group B after injection,some tumor were lessened,the expression of PI3k,Akt were decreased in group M.Conclusion Administration of MV into mice models of endometrial carcinoma resulted in the reduction of tumor volumes by suppressing tumor angiogenesis and the PI3K/Akt path-way which is related to the tumor cell proliferation.

Hydrogen peroxide, an important antimicrobial agent in oral cavity, plays a significant role in the balance of oral microecology. At the early stage of biofilm formation, about 80% of the detected initial colonizers belong to the genus Streptococcus. These oral streptococci use different oxidase to produce hydrogen peroxide. Recent studies showed that the produced hydrogen peroxide plays a critical role in modulating oral microecology. Hydrogen peroxide modulates biofilm development attributed to its growth inhibitory nature. Hydrogen peroxide production is closely associated with extracellular DNA(eDNA) release from microbe and the development of its competent cell which are critical for biofilm development and also serves as source for horizontal gene transfer. Microbe also can reduce the damage to themselves through several detoxification mechanisms. Moreover, hydrogen peroxide is also involved in the regulation of interactions between oral microorganisms and host. Taken together, hydrogen peroxide is an imperative ecological factor that contributes to the microbial equilibrium in the oral cavity. Here we will give a brief review of both the origin and the function in the oral microecology balance of hydrogen peroxide.
Biofilms ; Hydrogen Peroxide ; Mouth ; Streptococcus

Purpose: From the perspective of positive psychology, our study aimed to explore depressive symptomsand psychological well-being among Chinese nurses, as well as analyze the impacts of characterstrengths, self-efficacy and social support on the mental health of nurses. Methods: A cross-sectional and descriptive design using five self-reported questionnaires was used toinvestigate a cohort of 4238 nurses during 2018. A structural equation modeling analysis was used toverify a hypothetical model linking character strengths, self-efficacy, social support, depressive symptoms,and psychological well-being. Results: The prevalence of depression among this cohort of Chinese nurses was 58.1%. The mean scoresfor caring, inquisitiveness, and self-control were 19.93 (SD = 2.82), 15.94 (SD = 3.00), and 16.34(SD = 2.95), respectively. The hypothesized model was a good fit of the data (x2/df = 1.77, p = .183, rootmean square error of approximation = 0.04, goodness of fit index = 1.00, comparative fit index = 1.00,TuckereLewis index = 1.00). Except for the path from self-control to depression, the other hypotheticalpaths investigated were statistically significant. Conclusion Character strengths were directly and positively associated with psychological well-being.Inquisitiveness was the strongest direct protective factor for depression. In addition, characterstrengths indirectly alleviated depression and increased psychological well-being through mediatingvariables of social support and self-efficacy. This study should alert nurse managers that more attentionshould be paid to the character strengths and mental health of nurses. This study provides evidence forinterventions based on character strengths as a management strategy to support the mental health ofnurses.

Purpose: From the perspective of positive psychology, our study aimed to explore depressive symptomsand psychological well-being among Chinese nurses, as well as analyze the impacts of characterstrengths, self-efficacy and social support on the mental health of nurses. Methods: A cross-sectional and descriptive design using five self-reported questionnaires was used toinvestigate a cohort of 4238 nurses during 2018. A structural equation modeling analysis was used toverify a hypothetical model linking character strengths, self-efficacy, social support, depressive symptoms,and psychological well-being. Results: The prevalence of depression among this cohort of Chinese nurses was 58.1%. The mean scoresfor caring, inquisitiveness, and self-control were 19.93 (SD = 2.82), 15.94 (SD = 3.00), and 16.34(SD = 2.95), respectively. The hypothesized model was a good fit of the data (x2/df = 1.77, p = .183, rootmean square error of approximation = 0.04, goodness of fit index = 1.00, comparative fit index = 1.00,TuckereLewis index = 1.00). Except for the path from self-control to depression, the other hypotheticalpaths investigated were statistically significant. Conclusion Character strengths were directly and positively associated with psychological well-being.Inquisitiveness was the strongest direct protective factor for depression. In addition, characterstrengths indirectly alleviated depression and increased psychological well-being through mediatingvariables of social support and self-efficacy. This study should alert nurse managers that more attentionshould be paid to the character strengths and mental health of nurses. This study provides evidence forinterventions based on character strengths as a management strategy to support the mental health ofnurses.

Objective:To analyze the current situation and characteristics of online public sentiments faced by public hospitals since the outbreak of COVID-19, and provide suggestions for coping strategies for such hospitals.Methods:The data of " trending topic" or " Trending hash tag" of " Wuhan Union Hospital" and " anti-epidemic" were captured on three mainstream new media platforms, namely Sina Microblog, Tik Tok and Headline Today with the help of data analysis tools of Sina and online data statistical software from December 2019 to February 2020. Content analysis method was used to analyze the occurrence frequency, time distribution and development trend of public sentiment on Internet.Results:Under the epidemic of COVID-19, public hospitals faced an exponential growth of online public sentiment. The cumulative total number of searches was 72 119 802 tens of thousands of that before the epidemic. The transmission showed fragmentation of content, instantaneous speed and higher attention to negative information, which brought great challenges for public hospitals.Conclusions:The high participation of online discussion of COVID-19 is unprecedented. Thus public hospitals should attach importance to the work related to online public sentiment, and establish corresponding coping mechanism for response.