Objective To investigate the effects of heme oxygenase-1 (HO-1) on the signal transduction pathway of mucin(MUC) expression induced by cigarette smoke.Methods The cell model of mucous hypersecretion was made by human lung A549 cell stimulated by cigarette smoke extract(CSE),the cells were divided into 4 groups:negative control group,CSE treatment group,heroin pre-treatment group and ZnPPIX pre-treatment group.The expression of MUC5AC,epidermal growth factor receptor(EGFR),p-EGFR,HO-1 and dual oxidase 1 (Duoxl) were detected.The cell activity was assessed by methyl thiazolyl tetrazolium method.The change of HO-1 mRNA,Duoxl mRNA,EGFR mRNA and MUC5AC mRNA was examined by reverse transcriptase-polymerase chain reaction.The protein expression of EGFR,p-EGFR,Duox1 and HO-1 was measured by Western blot,while the pro tein expression changes of MUC 5 AC were detected by ELISA.Results The expression level of MUC 5 AC mRNA and its protein in the CSE group increased significantly (P＜0.05) as compared to those in the control group [0.412±0.043,(105±8) μg/mg.The mRNA and protein of EGFR,Duox1 and HO-1,the protein of p-EGFR increased significantly as compared to the control group.After the cells being pre-treated with hemin,the mRNA and protein of HO-1 increased significantly,while the mRNA and protein of Duox1,EGFR and MUC,SAC,the protein of p-EGFR decreased significantly as compared to the CSE group.After the cells were pre-treated with ZnPPIX,the increase of HO-1 mRNA and protein was not significant as compared to the control group,while the mRNA and protein of Duox1,EGFR and MUCSAC,the protein of p-EGFR increased significantly.Conclusion HO-1 decreased the level of Duox1,blocked ligand-dependent EGF-R activation and decreased the expression levels of MUCSAC.

Objective To investigate the effects of heme oxygenase-1 (HO-1) on the signal transduction pathway of cigarette smoke-induced mucin (MUC) expression in airway mucous hypersecretion. Methods The cell model of mucous hypersecretion was made by human lung A549 cell stimulated by cigarette smoke extract (CSE),and treated with hemin or ZnPPIX,an inductor or inhibitor of HO-1. The expression of HO-1,dual oxidase 1(Duox1),MUC5AC,epidermal growth factor receptor (EGFR) and p-EGFR were detected. The cell viability treated with hemin or ZnPPIX was assessed by methyl thiazolyl tetrazolium method (MTT). The cells were divided into 4 groups:a negative control group,a CSE treatment group,an hemin pre-treatment group and a ZnPPIX pre-treatment group. The changes of EGFR mRNA,Duox1 mRNA,HO-1 mRNA and MUC5AC mRNA were examined by reverse transcriptase-polymerase chain reaction (RT-PCR). The protein expression changes of Duox1,HO-1,p-EGFR and EGFR were measured by Western blot,while the protein of MUC5AC in supernate and endochylema were detected by enzyme-linked immunosorbent assay (ELISA). Results The expression levels of MUC5AC mRNA and its protein in supernate liquid and endochylema in the CSE group were (0.660?0.044),(62.80?6.85) ?g/mg and (157.00?3.26) ?g/mg,and those of EGFR were 0.596?0.061 and 0.620?0.051,both of them increased significantly (P0.05),while the protein of p-EGFR,the mRNA and protein of EGFR,Duox1 and MUC5AC increased significantly (P

Objective:To compare the clinical effect and safety of modified Simiao San and colchicines on the damp heat gout.Methods:120 patients with damp heat gout admitted in our hospital in 2015 were selected and randomly divided into group A,group B and group C with 40 cases in each group.Patients in group A were given modified Simiao San,patients in group B were given colchicine,patients in group C were given modified Simiao San combined with colchicine.Then the clinical effect,scores of symptoms,expression levels of inflammatory factors and other biochemical indexes,adverse reactions and recurrence rate of 3 groups were compared berween three groups.Results:The total effective rate and effectually effective rate of group A were 92.5％ and 57.5％ respectively,which were 95.0％ and 65.0％ in group C was,obviously higher than 77.5％ and 35.0％ of group B (P＜0.05).The symptom scores of 3 groups after treatment were all lower than those before treatment (P＜0.05).The variety of ESR and UA of group C were greater than other groups (P＜0.05).The incidence rate of adverse reaction in group A and group C were 5.0％ and 7.5％ respectively,obviously lower than 22.5 of group B with statistically signficance (P＜0.05).The SF-36 score of group C was obviously lower than those of group A and group B with statistically significance (P＜0.05).Conclusion:Modified Simiao San combined with colchicine had better effect and safety compared to single medicine,which could greatly improve the quality of life.

ObjectiveTo study the expression of telomerase of fibroblasts in the formation and development of scar,and to investgate the relationship between the telomerase activity and the formation and development of scar.MethodsExpression of telomerase was detected by immunohistochemical techniques in 18 specimens from granulation tissue,17 keloid,16 specimens from hypertrophic scar,28 specimens from mature scar,32 specimens from normal skin,and SPSS16.0 statistics software was used to analyze the relationship between telomerase and scar.Results It was shown that the positive expression rate of telomerase in the granulation tissue group was 94.4 ％,that in the keloid group was 58.8 ％,that in the hypertrophic scar group was 18.8 ％, and that in the mature scar and in the normal skin was zero. comparisons between groups,in addition to the normal scar group and normal skin group,other groups were statistically significant differences.ConclnsionsScar formation is a process with multi-factor participation,while telomerase activation is an important factor. Detecting telomerase activity in the development process of scar formation may determine the prognosis.Through the control of telomerase activity in the pathogenesis of scar may become a new approach of scar treatment.

ObjectiveTo evaluate the implication of ultrasonographic features of primary breast cancer tumors and axillary lymph nodes in predicting axillary lymph nodes metastasis in patients with breast cancer.MethodsA total of 108 patients with breast cancer were underwent examination of primary breast tumors and axillary lymph nodes by high frequency linear-array probes of ultrasound.The ages of patients,locations of primary tumors,numbers of tumors,maximum diameters of tumors,the longitudinal transverse axis ratio of tumors,mass boundary,ultrasonic patterns,micro-calcification,classification of blood supply,color pixel density(CPD),peak systolic velocity,resistance index,the longitudinal transverse axis ratio of axillary lymph nodes and maximum cortical thickness of axillary lymph nodes were recorded.ResultsOut of 108 patients with breast cancer,the longitudinal transverse axis ratio of tumor were greater than 1 in 75 (69.4 ％ ),micro-calcification in 57(52.8 ％ ),classification of blood supply were Ⅱ - Ⅲ in 57 (52.8％ ),CPD were greater than or equal to 10％ in 48 (44.4％),maximum cortical thickness of axillary lymph node were greater than or equal to 3 mm in 51 (47.2％),and longitudinal transverse axis ratio of lymph nodes were less than 1.5 in 59 (54.6％).Univariate analysis revealed that these six parameters were correlated to the axillary lymph node metastasis in breast cancer ( P ＜0.05).However,ages of patients,location of tumor in the breast,numbers of tumors,maximum diameters of tumors,mass boundary,ultrasonic patterns,peak systolic velocity and resistance index were not related to the axillary lymph node metastasis( P ＞0.05).Multivariate logistic regression analyses showed that CPD (OR:16.337,95％ CI:4.537- 58.826),longitudinal transverse axis ratio of lymph nodes (OR:3.754,95％ CI:1.269- 11.108) and microcalcificationand (OR:3.033,95 ％ CI:1.040 - 8.840) were risk factors of axillary lymph nodes metastasis in patients with breast cancer.ConclusionsThe application of ultrasonography in patients with breast cancer is useful in predicting axillary lymph nodes metastasis.

Objective To investigate the influence of pertussis toxin(PTX)on G protein-coupled estrogen receptor(GPER)-mediated activation of phosphatidylinositol 3-kinase(PI3K)/protein kinase B (Akt)signaling activated by 17 β-estradiol(17β-E2)in endometrial carcinoma cells.Methods Expressions of GPER protein were detected by immunohistochemical SP method in Ishikawa and HEC-1A cells.Changes of levels of GPER,ERα and ERβ protein and the activation of Akt protein were observed by western blot in the two cells after they were treated by PTX for 30 minutes at different concentrations(0,0.1,0.5,1.0 μg/ml),and then co-stimulated with with 1 × 10-6 mol/L 17β-E2 respectively at different time (Ishikawa 30 minutes,HEC-1A 15 minutes).Results(1)Immunohistochemical SP method showed that GPER was positive stained in cell cytoplasm of Ishikawa and HEC-1A cell.(2)After co-treated with PTX at different concentrations(0,O.1,0.5,1.0 μg/ml)and 10-6 mol/L 17β-E2,in Ishikawa cell,the ratio of pAkt/Akt was 0.74 ±0.54,0.34 ±0.06,0.18 ±0.03,0.07 ±0.15,the gray values of GPER was 0.872 ± 0.490,0.395 ± 0.054,0.145 ± 0.014,0.034 ± 0.008,and with increasing concentration of PTX,the ratio of p-Akt/Akt and the expression of GPER decreased gradually(P ＜ 0.05),which was most obviously when the concentration was 1.0 μg/ml(F =63.729,P =0.0001;F =160.284,P =0.0001);ERα and ERβ protein had no significant change among different groups(P ＞0.05).In HEC-1A cell,the ratio of pAkt/Akt was 0.73 ±0.09,0.26 ±0.14,0.11 ±0.03,0,the Gray values of GPER is 0.927 ±0.134,0.485 ± 0.022,0.194 ± 0.004,0,and with increasing concentration of PTX,the ratio of p-Akt/Akt and the expression of GPER decreased gradually(P ＜ 0.05),which were also completely inhibited when the concentration was 1 μg/ml(F =1039.321,P =0.0001;F =109.646,P =0.0001),ERα protein had no significant differences(P ＞ 0.05)among different groups.ERβ was negatively expressed.Conclusion The results proposed that the activation of PI3K/Akt signaling in Ishikawa and HEC-1A cells could be inhibited after blocking the role of GPER by PTX.

Objective:To evaluate the prognostic value of extravascular lung water index (EVLWI) , soluble intercellular adhesion molecule-1(sICAM-1) and Krebs yon den lungen-6 (KL-6) in severe pneumonia patients with Severe Acute Respiratory Syndrome (ARDS).Methods:A prospective study was conducted in Respiratory Intensive Care Unit of the Affiliated Zhengzhou Central Hospital of Zhengzhou University from October 2017 to February 2020. The study included 65 severe pneumonia patients with ARDS, who was performed by measurement of pulse index continuous cardiac output and survived more than 3days after admission. The Extravascular Lung Water Index (EVLWI) , sICAM-1, KL-6 and Oxygenation Index(OI) on 1st, 3rd and 5th day were detected. APACHEⅡ score, patient survival events (days) and survival outcome were recorded. Correlation analysis between EVLWI, sICAM-1, KL-6 and OI was performed on the 1st, 3rd and 5th day after admission. Independent risk factors of mortality in severe pneumonia patients with ARDS were analyzed by multiple logistic regression. Receiver operating characteristic curve was drawn, and the prognostic value of each parameter was assessed finally.Results:The PCT, EVLWI, sICAM-1, KL-6 and APACHEⅡ score in the death group were significantly higher than those in the survival group ( P<0.05) at RICU admission, and the length of RICU stay was significantly shorter than that in the survival group ( P<0.05), while differences in other clinical characteristics between two groups were not statistically significant ( P>0.05) . These parameters including levels of EVLWI, sICAM-1, KL-6, Procalcitonin and APACHE Ⅱscore in the death group were significantly higher than those in the survival group on the 1st, 3rd and 5th day ( P<0.05), whereas the OI was significantly lower than that of the survival group on the 3rd and 5th day ( P<0.05). Logistic regression analysis showed that EVLWI, sICAM-1, KL-6 level were significantly related with the mortality of these patients. The levels of sICAM-1, kl-6 and EVLWI on 1st, 3rd and 5th day after RICU admission showed a significant negative correlation with OI ( P<0.001). Whereas, The levels of sICAM-1, kL-6 on 1st, 3rd and 5th day showed a significant positive correlation with EVLWI ( P<0.001). The sensitivity and specificity of sICAM-1, KL-6 combined with EVLWI in prognosis evaluation on 1st, 3rd and 5th day were 75.0%, 84.4%, 85.0%, 66.7%, 80.0%, 86.7%, respectively. The AUC was 0.864, 0.881, 0.892 on 1st, 3rd and 5th day, respectively ( P<0.001), which had a better prognostic value than each of them. Conclusions:EVLWI, sICAM-1 and KL-6 were independent risk factors for the prognosis of severe pneumonia patients with ARDS. The combination of EVLWI, sICAM-1 and KL-6 might be important in early predicting the prognosis of the 28d mortality.

Objective To investigate the predictive value of lactate/albumin ratio(LAR),interleukin-6(IL-6)and CD4+T lymphocyte count in 28-day mortality in patients with severe pneumonia and sepsis.Methods A total of 73 patients with severe pneumonia and sepsis admitted to the Respiratory Intensive Care Unit(RICU)of Zhengzhou Central Hospital Affiliated to Zhengzhou University from January 2022 to June 2023 were enrolled and divided into the survival group(n=43)and the death group(n=30)according to their 28-day outcomes.The clinical data of the patients were collected from their electronic medical records,including age,gender,comorbidities with hypertension,diabetes,and coronary artery heart disease(CHD),as well as sequential organ failure assessment(SOFA)score,acute physiology and chronic health evaluation Ⅱ(APACHE Ⅱ)score,mean arterial pressure(MAP),confusion,uremia,respiratory rate,blood pressure,age ≥65 years(CURB-65)score,total bilirubin(Tbil),serum creatinine(Scr),platelet count(PLT),white blood cell(WBC)count,procalcitonin(PCT),and C-reactive protein(CRP)at admission to RICU.On the 1st,3rd,and 7th day after admission to RICU,the patients'arterial blood was drawn,and the lactate level was detected by a fully automated blood gas analyzer.The peripheral venous blood was drawn,and the serum albumin and IL-6 levels were detected by enzyme-linked immunosorbent assay,and the CD4+T lymphocyte subset count was measured by flow cytometry.The LAR of patients on the 1st,3rd and 7th day was calculated.The clinical data of the patients and the LAR,IL-6 level and CD4+T lymphocyte count on the 1st,3rd,and 7th day were compared between the two groups.The influencing factors of 28-day mortality in patients with severe pneumonia and sepsis were analyzed by logistic regression,and the predictive value of each influencing factor on the 28-day mortality in patients with severe pneumonia and sepsis was evaluated by the receiver operating characteristic(ROC)curve.Results There was no significant difference in gender,age,proportions of comorbidities with hypertension,diabetes and CHD,length of stay in RICU,and Tbil,MAP,PLT,Scr,WBC,PCT and CRP at admission to RICU(P＞0.05).The APACHE Ⅱ and CURB-65 scores of the patients in the death group were significantly higher than those in the survival group(P＜0.05).On the 1st,3rd and 7th day,the CD4+T lymphocyte count in the death group was significantly lower than that in the survival group,while the SOFA score was significantly higher than that in the survival group(P＜0.05).On the first day,there was no significant difference in the LAR and IL-6 level be-tween the death group and the survival group(P＞0.05).However,on the 3rd and 7th day,the LAR and IL-6 level in the death group were significantly higher than those in the survival group(P＜0.05).The LAR,IL-6 level and SOFA score on the 3rd and 7th day in the survival group were significantly lower than those on the 1st day,and these indicators on the 7th day were sig-nificantly lower than those on the 3rd day(P＜0.05);the CD4+T lymphocyte count on the 3rd and 7th day was significantly higher than that on the 1st day(P＜0.05),while it showed no significant difference on the 7th and 3r day(P＞0.05).The IL-6 level on the 7th day in the death group was significantly lower than that on the 1st and 3rd day(P＜0.05),while there was no significant difference in IL-6 level on the 1st day compared with the 3r day(P＞0.05);moreover,there was no significant difference in LAR,CD4+T lymphocyte count and SOFA score between each time point(P＞0.05).Pearson correlation analy-sis showed that on the 3rd day,the LAR and IL-6 level were significantly positively correlated with the SOFA score in patients with severe pneumonia and sepsis(r=0.385,0.394;P＜0.05).On the 7th day,the LAR and IL-6 level were also significantly positively correlated with the SOFA score(r=0.418,0.402;P＜0.05).On the 3 rd and 7 th day,CD4+T lymphocyte count was significantly negatively correlated with the SOFA score(r=-0.451,-0.454;P＜0.05).Logistic regression analysis showed that the APACHE Ⅱ score,LAR,IL-6 level and CD4+T lymphocyte count on the 3rd day,and the IL-6 level and CD4+T lym-phocyte count on the 7th day were the influencing factors for 28-day mortality in patients with severe pneumonia and sepsis(P＜0.05).The ROC curve showed that the APACHE Ⅱ score,LAR,IL-6 level and CD4+T lymphocyte count on the 3rd day and the combination of the three,IL-6 level and CD4+T lymphocyte count on the 7th day and the combination of the two had certain predictive value for the 28-day mortality in patients with severe pneumonia and sepsis(P＜0.05).The area under the ROC curve(AUC)of LAR,IL-6 level and CD4+T lymphocyte count on the 3rd day combined to predict 28-day mortality in patients with severe pneumonia and sepsis was 0.891,and the AUC of APACHE Ⅱ score for predicting 28-day mortality in pa-tients with severe pneumonia and sepsis was 0.769.The AUC values of LAR,IL-6 level and CD4+T lymphocyte count on the 3rd day for predicting 28-day mortality in patients with severe pneumonia and sepsis were 0.795,0.757 and 0.770,respective-ly,and the AUC values of IL-6 level and CD4+T lymphocyte count on the 7th day and their combination for predicting 28-day mortality in patients with severe pneumonia and sepsis were 0.743,0.802 and 0.888,respectively.Conclusion The 3-day LAR,IL-6 level and CD4+T lymphocyte count,and the 7-day IL-6 level and CD4+T lymphocyte count after admission are re-lated to the 28-day mortality in patients with severe pneumonia and sepsis.The combined LAR,IL-6 level and CD4+T lympho-cyte count on the 3rd day can better assess the severity and prognosis of patients.

Objective To investigate high risk human papillomavirus(HR-HPV)prevalence among married women in Beijing and to study the high risk flactors.nethods During March 2007 to September 2008.a total of 6185 married women sampled from 137 communities in 12 districts were screened bv HR-HPV DNA test and cytogical test.The interview was carried out with unified questionnaires.The databage was set up and twice entered in EpiDam 3.0.After checked up,the data were analyzed in SPSS 15.0.Results (1) The HR-HPV infection rate was 9.89%.The HR-HPV infection rate of the city zone,the suburb and the exurb were 9.34%,10.51% and 9.51% (P>0.05).The HR-HPV infection rate of the native and the oudander were 9.53%,11.30% (P<0.05).(2) The age distribution of HR-HPV infection was that the rate was around 10% among 25 to 44 age groups,which was the highest(11.21%) in 30 to 34 age group;then the rate was descended as the age raising,the rate of 50 to 54 age group was the lowest(7.78%).(3) Multiple logistic regression showed that the related risk factors of HR-HPV infection mainly included 1000 RMB and above of family income per person per month.possessing more than 1 sexual partner of her husband,outlander and hish levels of education.(4) The prevalence of cervical intraepithelial neoplasia(CIN)in HR-HPV positive group wag significantly higher than that in HR-HPV negative group(29.76% vs 3.32%,P<0.01).Conclusions(1)The HR-HPV infection rate among aged 25 to 54 years was 9.9% and there was no significant difference in area distribution.(2)The hish risk population which should strengthen screening was the married bearing-age women with high level of family income,outlander,high levels of education and her husband possessing more than 1 sexual partner.(3)HR-HPV infection is the main risk factor for CIN and cervical cancer.while does not provide a causal relationship with them.The high risk population should be checked regularly to understand the development of HR-HPV infection and CIN incidence.

Humans ; Diabetic Neuropathies/diagnostic imaging* ; Diabetes Mellitus, Type 2 ; Ultrasonography ; Diabetic Foot/diagnostic imaging*