Objective To make a nationwide external quality assessment for drug sensitivity testing of Neisseria gonorrhoeae, analyze the problems in and factors associated with the drug sensitivity testing, and to enhance the quality of drug sensitivity testing of N. gonorrhoeae at different monitoring sites. Methods Samples were uniformly delivered to monitoring sites by express mail service. Test results were analyzed in the National Center for STD Control, and the evaluation results were fed back to these monitoring sites. Results A total of 105 quality control samples were delivered from 2007 to 2009, with a response rate of 88.57% (93/105). Thirteen monitoring sites were enrolled in the external quality assessment, including 9 laboratories in 2007, 9 in 2008 and 13 in 2009. The total percentage amounted to 77.42% (24/31) for qualified laboratories during the 3 years, including 6 laboratories in 2007, 7 in 2008 and 11 in 2009. The coincidence rate increased for the detection of penicillinase-producing N. gonorrhoeae (PPNG), N. gonorrhoeae with chromosome-mediated ciprofloxacin resistance, and N. gonorrhoeae with chromosome-mediated spectinomycin resistance, and declined for the detection of N. gonorrhoeae with plasmid-mediated high level tetracycline-resistance (TRNG) and N. gonorrhoeae with chromosome-mediated ceftriaxone resistance. Conclusions The 3-year external quality assessment reveals an improvement in the overall quality of drug sensitivity testing of N. gonorrhoeae at national monitoring sites; the accuracy is improved markedly for the detection of PPNG, N. gonorrhoeae with resistance to spectinomycin and ciprofloxacin, but is needed to increase for the detection of ceftriaxone-resis- tant N. gonorrhoeae and TRNG.

Objective To determine the relationship between the viral load of cerebrospinal fluid (CSF) and sensorineural hearing loss (SNHL) in newborns with symptomatic congenital cytomegalovirus (CMV) infection.Methods The study cohort comprised 36 newborns with symptomatic congenital CMV infection.CSF from all of the patients were analyzed for the presence of CMV DNA by PCR.Audiological function were performed on them by brain stem auditory evoked potential at birth,at 6 and 12 months of age.Results (1)Of the 36 newborns,15 cases (41.7％) had positive CSF PCR result,17 cases (47.2％) had SNHL.(2) The prevalence of SNHL in the group of newborns with positive CSF PCR result was 60.0％ (9/15),and it was 38.1％ (8/21) in the group of newborns with negative CSF PCR result,there was no significant difference of the prevalence of SNHL between the two groups (P =0.194).(3) In newborns with positive CSF PCR result,the amounts of CSF CMV DNA was not different between the newborns with SNHL and normal hearing (3.35 ± 0.68 vs.3.17 ± 0.56,P =0.36).Conclusion A positive CSF PCR result and the CMV viral load of CSF did not correlate with SNHL.

Obej ctive To investigate the role of metastasis associated protein 1(MTA1)in estrogen reg-ulated expression of matrix metalloproteinase -9(MMP-9)and tissue inhibitor of metalprotease -1(TIMP-1) in estrogen receptor( ER ) positive breast cancer cells .Methods MTA1 knockdown cell model was generated based on MCF-7breast cancer cell line by transfected with MTA 1-shRNA.The mRNA and protein level of MMP-9 and TIMP-1 in wild type MCF-7(MCF-7WT)and MCF-7MTA1-shRNA before and after 17β-estradiol ( E2) treatment were examined by Real -time PCR and Western blot respectively .Results The MTA1-shRNA showed maximally 84.9%suppression of MTA1 expression in MCF-7,suggesting a satisfied MTA 1 knockdown cell model was established for subsequent experiments .After treated with E2 for 48 h,MCF-7WT showed an incre-ment of 46%(P<0.05)and 37%(P<0.05)of the mRNA and protein level of MMP -9 and a decrement of 32.3%( P<0.05)and 18.2%(P<0.05)of TIMP-1;MCF-7MTA1-shRNA showed a decrement of 32.3%(P<0.05)and 18.2%(P<0.05)of mRNA and protein expression of MMP -9 respectively but no significant differ-ence in TIMP-1 comparing with MCF-7WT before treated with Estradiol.After E2 treatment,MCF-7MTA1-shRNA didn′t show significant change of MMP -9 except decrements of 32.3%(P<0.05)and 18.2%(P<0.05)in the mRNA and protein levels of TIMP -1.Conclusion MTA1 may be involved in the pathway by which estrogen regulated the expression of MMP -9 but not TIMP-1 in ER positive breast cancer cells .

Objective To investigate clinical features and the pathophysiology of 43 children with atypical idiopathic partial epilepsies of childhood(IPEC)that is unclassified according to the International League Against Epilepsy classification.Methods All the children with partial epilepsy of childhood in out hospital were followed up,including those age-related cases with benign process and excluding those with benign epilepsy of childhood with centro-temporal EEG foci,Panayiotopoulos type and Gastaut type.We reviewed their EEGs,seizures and therapeutic data to analyze the semiologieal characters and the interietal activities during they were awake and sleeping.Results The average age of onset of epilepsy was 8.84years old.Frontal absences(43.2%),adversive seizures(47.7%)were more common.Everyday seizures occurred in 38.6%of patients and monthly seizures in 56.8%of patients.Atypical focal(43.2%),multifocal(27.3%),and generalized spike and waves(29.5%),were more predominant in frontal location when they were awake.During sleep,sharp waves generalized or the amplitude increased.At the last follow-up,88.6%of patients were in complete clinical remission and EEG in 22.7%of cases was normal.Among them 2 patients had stopped taking antiepileptic drugs(AEDs)and 6 patients were reducing the doses of AEDs.EEG Was abnormal only in sleep or decreased synchronization.The patients were more responsive to earbamazepine combined with sodium valproate(P<0.01).Conclusion Special partial epileptic syndrome is age-related,having excellent prognosis,which might origin from the frontal lobe.

AIM: To explore the effect of endoplasmic reticulum stress on cardiac myocyte apoptosis in mouse congestive heart failure induced by myocardial infraction.METHODS: The mouse model of heart failure was established by ligating the left anterior descending coronary to produce acute myocardial infarction.Thirty-two mice were divided into 4 groups: sham group and groups of post-operation at time points of 2,4 or 6 weeks,respectively.The ventricular dilatation and left ventricular functions were assessed by echocardiography.The expression of GRP78,CHOP,caspase-12,cleaved caspase-12,JNK and phosphorylated-JNK was detected by Western blotting.The cardiac myocyte apoptosis was determined by terminal deoxynucleotidyl transferase mediated dUTP-biotin nick end labeling(TUNEL).RESULTS: The cardiac expression of endoplasmic reticulum chaperones GRP78 was significantly increased in the hearts with functional failure.The upregulated expression of CHOP,phosphorylated-JNK and cleaved caspase-12 illuminated that the CHOP-JNK-caspase-12 dependent pathways for endoplasmic reticulum-initiated apoptosis were activated in the heart with functional failure by myocardial infraction.CONCLUSION: These findings suggest that the congestive heart failure induced by myocardial infraction is associated with endoplasmic reticulum stress and activation of CHOP,JNK,caspase-12 dependent pathways for endoplasmic reticulum-initiated apoptosis.

Objective To explore the clinical features of nervous system involvement of acquired immunodeficiency syndrome (AIDS).Methods A retrospective clinical analysis of 15 admitted AIDS patients with neurological involvement in our hospital from February 2002 to February 2008.Eight of them visited department of neurology for the first time.Results There were 4 cases of human immunodeficiency virus (HIV) encephalopathy, 1 of them appearanced as general chorea, 1 HIV-associated encephalopathy accompanied with myopathy; 1 progressive multifocal leukoeneephalopathy (PML); 1 PML accompanied with toxoplasmosis; 1 HlV-associated myopathy; 1 multicranial nerve injury companied with myelopathy; 1 peripheral neuropathy; 1 drug-associated neuromuscular disease; 4 meningoencephalitis and 1 brain abscess cases.Conclusion The manifestations and AIDS neurological involvement are varied.A close attention should be paid to screening.

Objective To analyze the related factors and nursing of radiation dermatitis.Methods A total of 100 radiation dermatitis patients treated by radiotherapy were as observation group given nursing intervention.At the same time, another 100 patients with radiation therapy in our hospital without concurrent radiation dermatitis were as control group, clinical basic information and related factors of radiation dermatitis were compared, and degree of radiation dermatitis and the degree of pain before and after treatment in the observation group were observed.Results There was a significant difference between the two groups in hypertension, diabetes mellitus and body mass index and tumor stage (P<0.05).Logistic multivariate regression analysis showed that diabetes mellitus, obesity and the use of compensatory membrane were independent risk factors for the development of radiation dermatitis by tumor radiotherapy (P<0.05).The degree of radiation dermatitis in observation group was significantly lower than nursing before, VAS score was (2.1±0.4) points, which was lower than (4.7±1.5) points than treatment before, the differences were statistically significant (P<0.05).Conclusion Obesity, combined with hypertension, the use of compensation film are risk factors of radiation dermatitis, and nursing intervention measures can help relieve pain for patients with dermatitis and reduce the degree of dermatitis, so it is favorable for prognosis.

Objective To investigate the effect of nursing intervention on the scores of selfcare ability scale (ESCA) and the health survey form (SF-36) of patients with permanent colostomy.Methods A total of 90 patients with permanent colostomy were randomly divided into control group (45 cases) and observation group (45 cases),the control group received conventional nursing intervention colostomy,while patients in the observation group used extended nursing intervention,ESCA,SF-36 scores of various dimensions of the two groups were compared.Results Before the intervention,no significant difference was observed in self-care skills and self responsibility,self concept,selfcare knowledge scores in ESCA scale (P ＞ 0.05).After nursing intervention,the observation group and the control group had higher scores of four dimensions in ESCA scale (P ＜ 0.05),and the observation group was significantly higher than the control group,the differences were statistically significant (P ＜ 0.05).Before nursing intervention,physiological function,social function,emotional function,physical function,body pain,mental health,general health,vitality scores in SF-36 scale showed no significant differences (P ＞ 0.05).After nursing intervention,SF-36 scale scores in the observation group and the control group were significantly higher than intervention before (P ＜ 0.05),and SF-36 scale scores in the observation group were significantly higher than control group (P ＜ 0.05).Conclusion Extended nursing intervention can improve self-care ability and quality of life of patients with permanent colostomy.

Objective To analyze the related factors and nursing of radiation dermatitis.Methods A total of 100 radiation dermatitis patients treated by radiotherapy were as observation group given nursing intervention.At the same time, another 100 patients with radiation therapy in our hospital without concurrent radiation dermatitis were as control group, clinical basic information and related factors of radiation dermatitis were compared, and degree of radiation dermatitis and the degree of pain before and after treatment in the observation group were observed.Results There was a significant difference between the two groups in hypertension, diabetes mellitus and body mass index and tumor stage (P<0.05).Logistic multivariate regression analysis showed that diabetes mellitus, obesity and the use of compensatory membrane were independent risk factors for the development of radiation dermatitis by tumor radiotherapy (P<0.05).The degree of radiation dermatitis in observation group was significantly lower than nursing before, VAS score was (2.1±0.4) points, which was lower than (4.7±1.5) points than treatment before, the differences were statistically significant (P<0.05).Conclusion Obesity, combined with hypertension, the use of compensation film are risk factors of radiation dermatitis, and nursing intervention measures can help relieve pain for patients with dermatitis and reduce the degree of dermatitis, so it is favorable for prognosis.

Objective To investigate the effect of nursing intervention on the scores of selfcare ability scale (ESCA) and the health survey form (SF-36) of patients with permanent colostomy.Methods A total of 90 patients with permanent colostomy were randomly divided into control group (45 cases) and observation group (45 cases),the control group received conventional nursing intervention colostomy,while patients in the observation group used extended nursing intervention,ESCA,SF-36 scores of various dimensions of the two groups were compared.Results Before the intervention,no significant difference was observed in self-care skills and self responsibility,self concept,selfcare knowledge scores in ESCA scale (P ＞ 0.05).After nursing intervention,the observation group and the control group had higher scores of four dimensions in ESCA scale (P ＜ 0.05),and the observation group was significantly higher than the control group,the differences were statistically significant (P ＜ 0.05).Before nursing intervention,physiological function,social function,emotional function,physical function,body pain,mental health,general health,vitality scores in SF-36 scale showed no significant differences (P ＞ 0.05).After nursing intervention,SF-36 scale scores in the observation group and the control group were significantly higher than intervention before (P ＜ 0.05),and SF-36 scale scores in the observation group were significantly higher than control group (P ＜ 0.05).Conclusion Extended nursing intervention can improve self-care ability and quality of life of patients with permanent colostomy.