Objective To understand multidrug-resistant organism (MDRO) healthcare-associated infection(HAI) in patients with malignant tumor, so as to provide basis for making HAI prevention and control measures.Methods Targeted surveillance method was used to survey MDRO HAI in patients with malignant tumor in a hospital from January 1 to December 31, 2014, WHONET 5.3 software was used to analyze the data.Results A total of 54 056 patients with malignant tumor were surveyed, HAI occurred in 3 542 (6.55%) patients, 847(23.91%)of which were MDRO HAI.Most patients(54.55%) with MDRO HAI were >60 years old.A total of 2 606 bacterial strains were isolated from patients with HAI, 847 (32.50%) of which were MDROs, and most were extended-spectrum beta-lactamases (ESBLs)-producing Escherichia coli (n=459, 54.19%).The major site of MDRO HAI was lower respiratory tract (47.34%).The top 3 departments of detection of MDROs were departments of thoracic surgery(17.12%), colorectal and anal surgery(9.92%), and general surgery (8.26%).Conclusion Incidence of MDRO HAI is higher in patients with malignant tumor, surveillance of high risk population and monitoring of antimicrobial resistance of pathogens should be strengthened, so as to reduce the occurrence of HAI.

Objective To explore the effect of salubrinal (sal,an endoplasmic reticulum stress inhibitor) on radiosensitivity of human head and neck squamous carcinoma cells (HNSCC).Methods Cells were divided into two groups of sal treatment and its control.For drug treatment group,cells were treated with 10 mmol/L sal for different time (12,24,36 h) and then irradiated.The levels of a core protein GRP78 of endoplasmic reticulum stress (ERS) in HNSCC (KB,Fadu,and Detroit 562 cells)were analyzed by Western blot assay at different time (0,20 min,1 h,3 h,6 h,12 h,24 h and 48 h) after irradiation.Cell survival was measured with colony formation assay.Results Western blot assay revealed that the protein levels of GRP78 in three kinds of HNSCC significantly increased from 20 min to 1 h and peaked at 3 h after radiation (t =12.72,13.37,18.31,P ＜ 0.05).Compared with the control group,treatment of cells with sal decreased GRP78 protein levels (t =14.25,5.34,3.12,P ＜ 0.05) in three cell lines and also significantly enhanced radiation damage and reduced cell viability.The sensitization enhancement ratios (SER) of sal in three cell lines were 1.16,1.05 and 1.06,respectively.Conclusions Rradiosensitivity of HNSCC could be effectively enhanced by sal treatment.

Objective To investigate the association between carotid atherosclerosis(AS) and serum magnesium(Mg) in hemodialyzed (HD) patients.Methods Clinical index was measured,and intimamedia thickness (IMT) of extracranial common carotid artery and presence of atherosclerotic plaques were determined by high-resolution B-mode ultrasonography.The data were analyzed between plaque positive group and plaque negative group.Results The age,serum phosphate (P),total cholesterol (TCH),low density lipoprotein (LDL),serum C-reactive protein (CRP),serum albumin(Alb),and serum Mg all had significant difference between two groups(t =4.153,2.908,2.301,6.322,5.791,2.341,7.778,P ＜0.01 or P ＜ 0.05).The risk factors of HD patients with AS were serum Mg and CRP(P ＜ 0.01).Conclusions The occurrence of AS was related to low Mg and high CRP in HD patients.

AlM: To research the characteristics of positive relative accommodation ( PRA) , negative relative accommodation (NRA) and PRA/NRA ratio in myopes. To analyze the relationship among PRA, NRA, PRA/NRA ratio, spherical equivalent degree, years and habbits of wearing glasses, myopia development, and pupil diameter.METHODS: Aretrospective study of ninety eyes in the 180 th Hospital of Quanzhou from August 2014 to December 2014. PRA, NRA and PRA/NRA ratio were compared among low, moderate, high myopes and emmetropes. The correlation were analyzed among PRA, NRA, PRA/NRA ratio, spherical equivalent degree, years and habbits of wearing glasses, myopia development and pupil diameter. PRA, NRA, PRA/NRA ratio, years and habbits of wearing glasses and pupil diameter were compared between progress group and non-progress group.RESULTS: ( 1 ) Without statistical differences in age, sex and intraocular pressure, PRA and PRA/NRA ratio of myopes were lower than emmetropes, while NRA was higher. (2) Without statistical differences in age, sex and intraocular pressure, PRA, PRA/NRA ratio and NRA had no statistical differences while years and habbits of wearing glasses had statistical differences among low, moderate, high myopes. ( 3 ) With longer years of wearing glasses, PRA, PRA/NRA ratio were larger and NRA, pupils were smaller. ( 4 ) Without statistical differences in age, diopter and intraocular pressure, one group which were not easy to deepen degree had more often-wear-glasses myopia patiens and longer years of wearing glasses, the other group which were easy to deepen degree had more seldom-wear-glasses myopia patiens and shorter years of wearing glasses.CONCLUSlON: PRA and PRA/NRA ratio of myopes were lower than emmetropes, while NRA was higher. No correlated relation was detected among PRA, NRA, PRA/NRA ratio, spherical equivalent degree and myopia development. lt suggests the onset and progress of myopia are related to many factors. Wearing-glass timely and accurately can release the decline of PRA and PRA/NRA ratio and slow down degree development in myopes.

Objective To study the clinical characteristics and outcome of cytomegalovirus(CMV) infection in infants.Methods All data including time of infection,clinical characteristics,laboratory tests and outcome of CMV infections in hospitalized infants were collec-(ted) and analyzed from January,1994 to July,2004.Results In 87 infected infants,congenitally infected newborns,perinatal infection in infants and postnatal infection in infants accounted for 27.6%,62.0%,16.6%,respectively.CMV hepatitis was the most frequent type of disease with the incidence of 41.3%,in which the incidence of splenomegaly was 10.3%.Most of CMV hepatitis infants had a good prognosis with the improved rate 80.5%.Central nervous system abnormality(including abnormal intension of muscle,convulsion,ocular and hearing abnormalities) occurred only in congenital and perinatal infection with the incidence of 20.4%.Generalized infection,the incidence of congenital infection and perinatal infection was 16.7%,1.8%,respectively.It did not occur in postnatal infection.The mortality rate of congenital infection and perinatal infection were 12.5% and 1.85%,respectively.Conclusions CMV infection is the main cause of infant hepatitis and it can also cause neurologic sequelae.The outcome of generalized infection in congenital infection is bad and the mortality rate is high.

Objective To discuss the significance of the application of neutrophil to lymphocyte ratio (NLR)combined with prostate specific antigen (PSA)in early diagnosis of prostate carcinoma.Methods 120 cases with surgery treatment of prostate carcinoma were selected as study group,and 120 healthy people were selected as control groups.The NLR and PSA were tested to diagnose the prostate carcinoma.The critical value of NLR in diagnosing prostate carcinoma was evaluated by ROC curves,and the advantages of combination of NLR and PSA were judged. Results By using ROC curves to evaluate the NLR in diagnosis,the critical value was 2.75.The susceptibility, specificity,Youden index,correct index were 0.79,0.85,0.65,0.72.The susceptibility,specificity,positive predictive value,negative predictive value,correct index of NLR combined with PSA in diagnosing the prostate carcinoma were 0.85,0.83,5.00,0.18,0.68.Conclusion The application of NLR has higher susceptibility and specificity to diagnose prostate carcinoma.NLR combined with PSA can improve the susceptibility and specificity of early diagnosis of prostate carcinoma.

To understand the genetic origin and variation of porcine epidemic diarrhea virus (PEDV) prevailing in Henan province,a total of 22 PEDV positive samples from suckling piglets with severe diarrhea were collected from 16 pig farms and amplified by RT-PCR.ORF3 genes were then cloned into pMD18-T vector and sequenced.The result of sequencing showed that the length of ORF3 genes all were 675 bp which encoded 224 amino acids.The strains in this study had eight amino acid substitutions when compared with CV777 strain.The nucleotide homologies of the 22 strains were 95.9％-100％ and amino acid homologies were 96.4％-100％.By comparing with those of European strain CV777 and vaccine strain truncated CV777,the nucleotide homologies were 97.1％-97.9％ and 94.8％-95.4％,respectively.Based on the phylogenetic relationship of ORF3 genes,the PEDV field strains and PEDV reference strains could be divided into two groups,and all the field strains identified in this study belong to group 2.It suggested that prevalent PEDV strains in this study seem to be closely related to Henan isolates in previous years,domestic strains,Janpanese strains,American strains as well as Korean strains but differ genetically from European strains or vaccine strains used in China.This experiment analyzed the ORF3 gene sequence features in prevailing of Henan region in recent years,which provides a new support of epidemiology study and protein function research of PEDV ORF3 gene.

Objective To explore the effect of gaseous signal molecule hydrogen sulfide(H2S)on the expression of lung Muc5ac and Th1/Th2 cytokines in ovalbumin(OVA)-induced asthma rats and explore the effect of H2S on asthma.Methods Twenty-six healthy SD rats were randomly divided into 3 groups:control group(Group A,n=8),asthma group(Group B,OVA induced,n=9)and NaHS group(Group C,OVA induced rats treated with NaHS,n=9).Twenty-four hours after treatment,rats were anatomized to measure serum interleukin(IL)-4,interferon-? and the levels of infiltration into inflammatory cells around bronchus were observed,which were scored with the optical microscope.The expression of lung Muc5ac was determined by immunohistochemical staining.Results The score of the levels of infiltration into inflammatory cells around bronchus expressed by median was 1 score in group A,4 score in group B and 2 score in group C.There were dramatically statistics significance among the 3 groups(H=13.75 P

Animals ; Antihypertensive Agents ; pharmacology ; Heme Oxygenase (Decyclizing) ; drug effects ; metabolism ; Losartan ; pharmacology ; Rats ; Water-Electrolyte Balance

Objective To evaluate the value of 18F-FDG and 18F-FLT PET/CT for the detection of primary and regional lymph node metastasis of gastric cancer.Methods Thirty-seven patients with gastric cancer underwent preoperative 18F-FLT and 18F-FDG PET/CT within one week from March 2011 to April 2013.Postoperative histopathology confirmation was obtained in all patients.The PET/CT images were assessed visually and semi-quantitatively.Two-sample t and x2 tests were analyzed using SPSS 13.0.Results For the detection of primary gastric cancer,the sensitivities of 18 F-FLT and 18 F-FDG PET were 89.2％ (33/ 37) vs 91.9％(34/37),respectively (x2=0.158,P＞0.05).The 18F-FLT SUVmax of 16/37 cases with diffuse-type gastric cancer was significantly higher than that of 21/37 cases with intestinal-type gastric cancer (6.89±1.38 vs 3.79±2.45,t=4.533,P＜0.05) ; while 18F-FDG SUVmaxwas not significantly different between the two subgroups (7.13± 1.97 vs 6.36±2.32,t =1.066,P＞0.05).For the detection of regional lymph node metastasis,the sensitivity,specificity and accuracy of 18F-FLT and 18F-FDG were 64.8％(35/54) vs 88.9％(48/54),97.6％(246/252) vs 82.9％(209/252),91.8％(281/306) vs 84.0％(257/306),respectively (x2 =8.796,30.948,8.854,all P＜0.05).The overall sensitivity,specificity and accuracy by both tracers were 92.6％(50/54),98.8％(249/252) and 97.7％(299/306).Conclusions 18F-FLT might be a better or complementary tracer to 18F-FDG for the detection of diffuse-type gastric cancer.Compared with 18FFDG PET/CT,18F-FLT PET/CT may be less sensitive but more specific and accurate for the detection of regional lymph node metastasis.The overall diagnostic accuracy can be improved by using both tracers.