Reactive oxygen species (ROS) is defined as the electron reduction product of oxygen with high reactivity which can maintain normal physiological functions and redox homeostasis. The tumor microenvironment is in a state of oxidative stress. ROS can affect multiple processes of tumor immune response by modulating the phenotype and functions of tumor cells and immune cells. With the rapid development of immunology, ROS-based tumor immunomodulation has been widely concerned and studied. In this review, the mechanism of ROS participating in tumor immune response is elaborated. Meanwhile, the research process and application of ROS in tumor immunomodulation in recent years are reviewed and analyzed.

Objective To research the ophthalmic nosocomial infection ,and to explore ophthalmic nosocomial infection risk fac-tors .Methods Retrospective analysis medical record information of 122 ophthalmic patients ,who were residency and nosocomial in-fection ,from January 2003 to December 2012 in department of ophthalmology ,renhe hospital of three gorges university .multivariate logistic regression analysis was used to screen risk factors .Results ophthalmic nosocomial infection rate was 2 .47% (122/4 931) , the highest rate was of respiratory infections ,accounting for 56 .56% (69/122) .Multivariate Logistic regression analysis showed that ,ntact check ,invasive operation ,hospitalization days were the risk factors for nosocomial infections .Conclusion Ophthalmology inpatients often merge hospital infection ,hospital should strengthen the hospital infection management ,strict execution aseptic oper-ation ,reducing the occurrence of hospital infection .

AIM:To explore the effect of different concentrations of salidroside on H2 O2 induced oxidative stress damage in human lens epithelium cells ( HLEC) . · METHODS: HLEC were cultured and divided into negative control group: cultured in normal cultivation;oxidative damage group: treated with 100μmol/L H2 O2 for 12h; Salidroside low concentration group: 10μmol/L salidroside treated for 24h and H2 O2 treated for 12h;Salidroside high concentration group: 100μmol/L salidroside treated for 24h and H2 O2 treated for 12h. MTT method was applied to observe the effect of salidroside on HLEC survival rate. Morphological change of each group were observed and recorded under inverted microscope. DCFH-DA fluorescent probe was applied to detect intracellular ROS changes; content of malondialdehyde ( MDA ) , superoxide dismutase ( SOD ) and glutathione peroxidase ( GSH-Px ) in supernatants were detected by pectrophotometer. · RESULTS: Salidroside obviously inhibited H2 O2 -induced HLEC vitality decline, inhibited ROS generation in cells, causing SOD, GSH-Px levels increased and MDA levels decreased. ·CONCLUSION:Salidroside inhibited H2 O2 induced HLEC injury by decreasing the intracellular MDA content levels and increasing SOD, GSH-Px content levels, which conclude that salidroside may have a certain role in the treatment of HLEC damage.

To discuss the effective method of decreasing the postoperative recurrence rate of recurrent pterygium.
●METHODS:Totally 126 cases (126 eyes) with recurrent pterygium were randomly divided into A group (56 cases) and B group ( 70 cases ). Group A was treated by pterygium conjunctive reverse transplantation combined with amniotic membrane transplantation, group B was treated by amniotic membrane transplantation. The followed-up time after surgery was 6-24mo.
●RESULTS:ln group A, postoperative 5-7d (average 5. 62± 1. 38d), cornea epithelium was repaired. ln group B, postoperative 7- 10d ( average 7. 38 ± 1. 12d), the corneal wound was healed. There was statistical significant difference between two groups (t = 4. 307,P<0. 05). Three cases recurrence were noted in A therapeutic group (56 cases), the recurrent rate was 5. 4%; Twelve cases recurrence were noted in B compared group (70 cases), the recurrent rate was 17. 1%. There was statistical significant difference between two groups(P<0. 05).
●CONCLUSlON: lt is suggested that pterygium conjunctive reverse transplantation combined with amniotic membrane transplantation is effective in the treatment of recurrent pterygium.

Objective:To explore the effect of intratracheal transplantation human umbilical cord blood mesenchymal stem cells on pulmonary interstitial fibrosis by bleomycin in mice,compare the treatment in pulmonary fibrosis of intratracheal transplantation with tail vain injection human umbilical cord blood mesenchymal stem cells.Methods:The second generation of HUCBMSCs were cultured to the fourth generation.Sixty specific pathogen free male Kunming mice were randomly divided into 4 groups:negative control group ( Cont group) ,bleomycin group( BLM group) ,HUCBMSCs transplantation groupⅠ( MⅠgroup) and HUCBMSCs transplantation groupⅡ(MⅡ group),each group 15 mice.Pulmonary fibrosis models were induced by bleomycin via intratracheal perfusion in the latter three groups.Twenty four hours after model establishment,5-bromo-2-deoxyuridine( Brdu) marked HUCBMSCs were poured in trachea in MⅠgroup ,the same were injected into tail vein in MⅡ group.At the 7th,14th,28th day,5 mice in each group were executed re-spectively.The morphological changes of the lung tissues were observed by HE staining and Masson staining.The localization and distribution of human umbilical cord blood mesenchymal stem cells were determined by the method of immunohistochemistry.The hydroxyproline contents were measured by alkali hydrolysis assay.The protein levels of transforming growth factor β-1 ( TGF-β1 ) and smooth muscle alpha-actin(α-SMA) were detected by Western blot.Results:In the two mesenchymal stem cell transplantation groups, there were Brdu marked cells at the 7th,14th,28th days in lung tissue.The alveolitis and fibrosis in lung of the two mesenchymal stem cell transplantation groups were milder than which of the the bleomycin group(P<0.05).Hydroxyproline levels in the bleomycin groups at 3 time points showed a gradually rising trend,the highest level was at 28th day( P<0.01).The protein levels of TGF-β1 andα-SMA in the lung tissues ranked as follows:BLM group>MⅠ,MⅡgroup>Cont group(P<0.05),the difference between MⅠgroup and MⅡgroup was not statistically significant(P>0.05).Conclusion:The colonization of human umbilical cord blood mesenchymal stem cells can be seen in the damaged tissue via intratracheal transplantation which can alleviate pulmonary fibrosis in mice caused by bleomycin.

Background: Extensive studies have confirmed the efficacy of taxanes in combination with anthracycline-basedchemotherapy on breast cancer. However, few studies have assessed the efficacy of weekly taxane–anthracyclineregimens on locally advanced breast cancer. This study was to compare the efficacy and safety of a weekly taxane–anthracycline regimen with those of tri-weekly anthracycline-based regimen in patients with locally advanced breastcancer.Methods: Patients with locally advanced breast cancer were randomized to receive 4–6 cycles of neoadjuvant chemotherapywith tri-weekly 5-fluorouracil–epirubicin–cyclophosphamide (FEC) regimen or weekly paclitaxel–epirubicin(PE) regimen. The primary endpoint was the pathologic complete response (pCR) rate. Other endpoints included theclinical tumor response, breast-conserving surgery rate, and adverse events.Results: Between March 2010 and September 2013, 293 patients were randomized to the FEC (n = 151) and PE(n = 142) arms. The overall clinical response rate was significantly higher in the PE arm than in the FEC arm (76.06% vs.59.95%, P = 0.001). Consistently, the post-chemotherapy pathologic T and N stages were significantly lower in the PEarm than in the FEC arm (P < 0.001). However, the pCR rate was similar in the two arms (10.61% vs. 12.31%, P = 0.665).Overall, 36 (27.27%) patients in the FEC arm and 6 (35.28%) in the PE arm were qualified for breast-conserving surgery.Most adverse events were comparable in both arms, with more severe neutropenia in the PE arm than in the FEC arm(11.97% vs. 5.96%, P = 0.031).Conclusions: In patients with locally advanced breast cancer, weekly PE was not superior to FEC in terms of pCR.However, weekly PE has a higher response rate and superior down-staging effects. On this account, the PE regimenmay be considered an alternative option for locally advanced breast cancer. Long-term follow-up data are needed toconfirm the efficacy of this regimen on locally advanced breast cancer.

Objective To evaluate the knowledge, behavior and psychological status regarding COVID-19 epidemic in elementary and secondary school teachers, and to provide a reference for disease prevention and control at schools as well as for preparation of school returning. Methods A survey in 2 338 teachers was conducted using self-designed questionnaires about COVID-19. Results The overall awareness rate of COVID-19 knowledge was 88.79%, knowledge score was 10.65±1.09, and the school health teachers had higher score than other school staff (F＝23.87, P=0.000 1).Respondents with IP address in Hubei had higher score than those in Jiangsu, Zhejiang and Shanghai(F＝10.69, P=0.014).The top three knowledge resources were news apps (Toutiao, Tencent) (87.25%), WeChat (78.06%) and telecast (74.94%).The overall healthy behavior score was 43.59±3.12, and school doctors again had higher score than other school staff (F=11.48, P=0.02).Respondents with IP address in Hubei had higher score than those in Jiangsu, Zhejiang and Shanghai (F=17.08, P=0.000 7). During the epidemic, 100% respondents wore masks when taking public transportation, the highest rate of wearing masks, while 90.93% wore masks at family and friends gathering, the lowest rate of wearing masks.The top three types of masks being used were disposable medical masks (89.14%), surgical masks (43.63%) and N95 medical protective masks (34.09%).The highest rate of hand washing behavior was 99.83% for washing hands after going to toilet, while the lowest was 75.92% for washing hands after touching hair, ears and nose.The highest rate of other healthy behaviors was 94.14% for reducing family and friend gatherings, while the lowest was 71.60% for covering mouth and nose when sneezing or coughing. The correlation between health behavior and knowledge was statistically significant (r=0.081, P < 0.001).Correlation analysis showed that the degree of concern was related to the degree of teaching influence (r=0.768, P=0.0002), and the degree of anxiety was related to the degree of teaching influence (r=0.175, P < 0.001), while there was no correlation between the degree of concern and the degree of anxiety. Conclusion Elementary and secondary school teachers generally have high score in the COVID-19 knowledge test, and behaved well in wearing masks.Hand hygiene education should be further improved.There are concerns about the impact of COVID-19 epidemic on teaching.

The present condition in the acupoint term translation was analyzed and its existent problems in this area were discussed in this paper. The authors suggested that in translating the terms of acupoints, the translation on the meaning of the acupoints should be added, in this way, it can not only keep the integrity in acupoint translation, but also make the inheritance of the Chinese precious culture of Traditional Chinese Medicine further available.
Acupuncture Points ; Animals ; Culture ; Humans ; Medicine, Chinese Traditional ; Translating

Objective To observe the curative effect of Shenmai injection on patients with myocardial injury after cardiopulmonary resuscitation (CPR) and to explore its possible mechanism.Methods Sixty-two patients with cardiac arrest and respiratory arrest admitted to Qingdao Hiser Hospital from January 2010 to December 2016 were enrolled, they were randomly divided into a conventional therapy control group (30 cases) and a Shenmai treatment group (32 cases) and both groups were also treated by conventional treatment. The patients in the two groups were given basic life support of CPR and its commonly used drugs simultaneously. In Shenmai treatment group, the patients were additionally infused intravenously with 100 mL of Shenmai injection once per day. The therapeutic effect was evaluated after treatment for 7 days. On the day before treatment and 1, 3 and 7 days after treatment, the patient's blood was collected to determine the levels of myocardial injury landmarks, serum creatine kinase isoenzyme (CK-MB), cardiac troponin T (cTnT) and N-terminal B-type natriuretic peptide (NT-proBNP), and the incidences of arrhythmia of ventricular tachycardia, ventricular fibrillation (VF) and atrioventricular block were observed in the two groups; the left ventricular ejection fraction (LVEF), stroke volume (SV) and cardiac output (CO) were measured at bedside by two-dimensional echocardiography for the patients of two groups.Results In conventional therapy control group, the levels of CK-MB, cTnT showed a temporary increase after 1 day of treatment, after 3 days of treatment, CK-MB and cTnT were significantly lower than those before treatment, and reached the lowest levels after 7 days of treatment; the level of NT-proBNP after treatment showed a continuous decrease, the levels of LVEF, SV, CO were persistently increased after treatment; in Shenmai treatment group, the levels of CK-MB, NT-proBNP were decreased continuously after treatment, cTnT was firstly increase and then decrease, and reached to the lowest revels after 7 days of treatment while the levels of LVEF, SV and CO were firstly decreased and then increased gradually, and reached to the highest levels after 7 days of treatment; compared with those of conventional therapy control group, the levels of CK-MB, cTnT, NT-proBNP in Shenmai treatment group were significantly lower after 3 and 7 days of treatment [3 days of treatment: CK-MB (U/L)was 51±1 vs. 82±3, cTnT (μg/L) was 2.5±0.3 vs. 3.9±0.2, NT-proBNP (ng/L) was 5 810±103 vs. 15 965±152;7 days of treatment: CK-MB (U/L) was 27±2 vs. 56±3, cTnT (μg/L) was 1.2±0.3 vs. 2.9±0.2, NT-proBNP (ng/L) was 2 834±123 vs. 4 832±76], while LVEF, SV and CO were significantly higher than those in conventional therapy control group [3 days of treatment: LVEF was 0.47±0.03 vs. 0.45±0.02, SV (mL) was 45±5 vs. 39±4, CO (L/min) was 3.7±0.2 vs. 3.6±0.2; 7 days of treatment: LVEF was 0.59±0.02 vs. 0.51±0.03, SV (mL) was 55±4 vs. 45±2, CO (L/min) was 5.3±0.3 vs. 4.6±0.4, all P < 0.05]. After CPR, arrhythmia developed in the patients of two groups, and compared with that before treatment, there was no statistical significant difference in the incidence of arrhythmia after 1 day of treatment in Shenmai treatment group (all P > 0.05); the incidence of arrhythmia was decreased significantly after 3 and 7 days of treatment compared with those before treatment, reached to the lowest level on the 7th day of treatment, and the degree of decrease of incidence of arrhythmia in Shenmai treatment group was more obvious than those of the conventional therapy control group [ventricular tachycardia: 9.4% (3/32) vs. 20.0% (6/30), VF: 9.4% (3/32) vs. 20.0 % (6/30), atrial ventricular block: 18.8% (6/32) vs. 36.7% (11/30), all P < 0.05]. Conclusions Shenmai injection has certain protective effect on injured myocardium in patients undergoing CPR, the mechanism is possibly related to reducing the levels of CK-MB,cTnT, NT-proBNP and further improving the LVEF, SV and CO.

Objective To evaluate the detection of membrane neutrophilic alkaline phosphatase ( mNAP) by flow cytometry in diagnosis of bloodstream infection .Methods A total of 298 patients with suspected bloodstream infections admitted in the First People ’ s Hospital of Lianyungang during June 2013 and October 2014 were enrolled;80 healthy subjects in physical examination center were also enrolled as the control group.Bloodstream infection was diagnosed by blood culture and mNAP was detected by flow cytometry.Serum levels of procalcitonin (PCT) and C-reactive protein (CRP) were detected by electro-chemiluminescence (ECL) and immune scatter turbidimetry , respectively.The value of mNAP, PCT and CRP in diagnosing bloodstream infection was determined by receiver operating characteristic ( ROC) curve. Results Among 298 patients, 109 were confirmed with bloodstream infections , including 43 patients with Gram-positive bacterial infections and 66 with Gram-negative bacterial infections .The median levels of CRP , PCT and mNAP in bloodstream infection group were 138.71 mg/L, 7.04 ng/mL and 13 929 AB/c, which were significantly higher than those in healthy control group (1.50 mg/L, 0.12 ng/mL, 1 831 AB/c;U=5.00, 48.50 and 65.01, P<0.01).The expression of mNAP in Gram-positive bacterial infection group was 9 598 ( 6 064-11 643 ) AB/c, which was significantly lower than that in Gram-negative bacterial infection group [16 512 (11 654-22 001) AB/c] (U=250.00, P<0.01).ROC curve analysis showed that, the areas under the curve (AUCs) of mNAP, PCT and CRP in diagnosing bloodstream infection were 0.987, 0.962 and 0.901.When 4 578AB/c, 0.90 ng/mL and 13.50mg/L were taken as optimal cut-off values, the sensitivities of mNAP, PCT and CRP in diagnosis of bloodstream infection were 95.8%, 93.0%and 90.3%; the specificities were 97.8%, 95.6% and 85.5%, respectively.Conclusion Among mNAP, PCT and CRP, mNAP is of the highest value in diagnosing bloodstream infection , and may be used as a biomarker for clinical diagnosis of bloodstream infection .