Carotid stenosis is one of the important risk factors for cerebrovascular disease.Many studies have shown that carotid stenosis may cause cognitive impairment,but the specific mechanisms remain unclear.Carotid endarterectomy and stenting can relieve carotid stenosis,improve cerebral perfusion,and may improve the cognitive function of patients,but the complications and long-term efficacy after intervention remain to be further studied.

Objective To research the correlation on high performance liquid chromatography (HPLC) and antidepressant effect of different elution fractions of acorus tatarinowii schott macroporous resin .Methods Prepared different fractions by using AB‐8 macroporous resin .Establish HPLC characteristic chromatograms of crude drugs and different elution fractions from AB‐8 acorus tatarinowii schott macroporous resin by using gradient elusion .Confirm characteristic peaks in chromatograms .despair mod‐els of male mice ,including tails suspension test (TST ) ,forced swimming test (FST ) were used to evaluate antidepressant effects by taking orally .Results HPLC chromatograms of crude drugs and different fraction of acorus tatarinowii schott showed that they had same characteristic peaks .Elution of 90% and 70% alcohol solution from AB‐8 macroporous resin can obviously reduce TST and FST time .The anti‐depressant effect were associated with characteristic peaks on chromatogram .Conclusion Acorus tatarinowii schott has anti‐depressant effect ,and mainly from 70% and 90% alcohol solution eluted from AB‐8 macroporous resin .HPLC char‐acteristic chromatography and data relationship between relative peaks can be used to judge the antidepressant effects of acorus ta‐tarinowii schott ,and give reference to research and product development .

Objective To understand the clinical distribution situation of streptococcus penumoniae (SP) and drug susceptibility test results to provide a basis for the clinical diagnosis,treatment and prevention of SP infection.Methods Totally 416 nonrepeat strains of SP were isolated during 2010 to 2015.Their identification and drug susceptibility test were performed by using the ATB Express bacterial identification system.The results were interpreted according to the standard of CLSI 2014 edition.Results In these 6 years,SP showed the isolation peak in spring and winter;the detection rate of respiratory tract specimens reached more than 90 ％;the young children and elderly people were predominant;SP maintained high sensitivity to penicillin,amoxicillin,etc.,the difference in the sensitivity rate and non-sensitivity rate had statistical significance(P＜0.05);but SP showed high level non-sensitivity to clindamycin,erythromycin,etc.,the difference in the sensitivity rate and non-sensitivity rate had no statistical significance (P＞0.05).Conclusion Although β-lactam antibiotics such as penicillin can still be used as the first choice of therapy,but PISP and PRSP show the increasing trend year by year;therefore the antibacterial drugs should be selected according to the drug susceptibility test results.

Objective To study the expression and clinical significance of FoxM1 and Cep55 protein in basal-like breast carcinoma (BLBC).Methods The expression of FoxM1 and Cep55 protein in 66 cases of BLBC,70 cases of non-BLBC and 66 cases of normal adjacent breast tissue were detected by immunohistochemistry.Their relationship with the clinical pathological factors was analyzed.Results The positive rate of FoxM1 protein in BLBC,non-BLBC and normal adjacent breast tissue was 77.3％ (51/66),60.0％(42/70) and 13.6％(9/66),Cep55 protein was 74.2％(49/66),57.1％(40/70) and 16.7％(11/66),respectively.BLBC and non-BLBC tissue were higher than normal adjacent breast tissue,and BLBC tissue was higher than non-BLBC,there was significant difference (P ＜0.05).In BLBC tissue,the positive expression of FoxM1 and Cep55 protein correlated with lymph nodes metastasis and TNM staging (P ＜0.05),while did not correlate with age,menopause,tumor size (P ＞ 0.05).There was direct correlation between the positive expression of FoxM1 and Cep55 protein (r =0.259,P ＜ 0.05).Conclusion FoxM1 and Cep55 protein may play an important role in the carcinogenesis and development of BLBC,and both of them have the synergistic effect.

Objective To maintain the good psychological state of new nurses, stabilize nursing troop and improve nursing quality, we investigate the work pressure source and mental health of new nurses and analyze the correlation among work pressure, mental resilience and mental health. Methods According to the principle of convenience sampling,a total of 116 new nurses who get the job less than one year in the first hospital of Jilin university were investigated using the method of questionnaire survey. The Conner Davidson Resilience Scale (CD-RISC), Self-rating Anxiety Scale (SAS) and Self-rating Depression Scale (SDS) were involved in the questionnaire. Results Mental resilience scores of new nurses were (63.73±15.11), the scores of anxiety and depression were (34.49±6.45) and (35.59±7.24). Work pressure was negatively correlated with mental resilience (P<0.01) and positively correlated with anxiety and depression (P<0.01). New nurses worried about making mistakes in the work accounted for 89.42 percents (93/104), which was the highest score in the stress source. Conclusions New nurses have good mental resilience and psychological health level, but work pressure has certain impact on mental resilience and mental health. Hospital managers should take active measures which include reducing pressure and improving the ability to help the new nurses through the adaptation as soon as possible.

Objective To learn drug resistance of bacteria isolated from a hospital of Chengdu from 2012 to 2013 .Methods From 2012 to 2013 ,39 732 clinical specimens were collected ,ATB Express half‐automatic bacteria identification system were used to identify the bacteria ,and paper diffusion(K‐B) method was used to do drug sensitive test ,results were judged according to Clini‐cal and Laboratory Standards Institute 2012 standard interpretation ,Whonet5 .6 was used to do statistical analysis .Results In the bacteria isolated from this hospital in 2012 and 2013 ,gram‐positive bacteria accounted for 27 .7% and 37 .4% respectively ,gram negative bacteria accounted for 72 .3% and 62 .6% .The top five pathogenic bacteria were E .coli(16 .3% ,20 .3% ) ,Pseudomonas aeruginosa(11 .5% ,11 .7% ) ,Staphylococcus aureus (11 .3% ,11 .4% ) ,Acinetobacter baumannii(10 .6% ,9 .3% ) ,Klebsiella pneu‐moniae(14 .7% ,12 .0% ) .The detection rates of Methicillin‐Resistant Staphylococcus(MRSA) were 56 .2% ,47 .7% .The positive rates of producing extended spectrum βlactamases(ESBLs) of E .coli and Klebsiella pneumonia accounted for 41 .0% ,32 .2% and 21 .0% ,10 .8% ,which were high sensitive to carbon penicillium alkene antibiotics and amikacin .Susceptibility monitoring results showed that the drug resistance of Acinetobacter baumannii was rising ,and the drug resistant of Pseudomonas aeruginosa to most antibiotic were decline .Conclusion The top five bacteria isolated from this hospital in 2012 and 2013 are given priority to gram‐negative bacteria ,in addition to the drug resistant trend of Acinetobacter baumannii increased slightly ,the drug resistant of other four common bacteria were decline .Clinical attention should focus on positive ESBLs ,E .coli ,Klebsiella pneumoniae ,MRSA and M ulti‐resistant bacteria .

Objective To investigate the correhtion between cognitive impairment and cerebral atherosclerosis in patients with acute ischemic stroke.Methods Acute ischemic stroke patients without cognitive impairment were recruited before symptom onset.The Montreal cognitive assessment (MoCA) was used to evaluate the cognitive function.Magnetic resonance imaging (MRI) was used to identify the infarct locations and sides.Magnetic resonance angiography,CT angiography and digital subtraction angiography were used to identify atherosclerotic arteries.Resul~ A total of 101 patients with acute ischemic stroke were enrolled,including 75 (74.3％) with cognitive impairment.The proportions of age (54.54 ± 12.59 years vs.64.43 ± 10.37 years;t =-3.960,P ＜0.001),years of education ≤6 years (50.7％ vs.11.5％;x2 =12.257,P ＜ 0.001),and cerebral atherosclerosis (89.3％ vs.50.0％;x2 =18.137,P ＜0.001) of the cognitive impairment group were significantly higher than those of the normal cognitive function group.Multivariate logistic regression analysis showed that cerebral atherosclerosis was an independent risk factor for cognitive impairment in patients with acute ischemic stroke (odds ratio 1.720,95％ confidence interval 1.005-2.942;P=0.048).MoCA score was negatively correlated with the offending vessels (r=-0.365,P＜ 0.001) and the most severe vessels of atherosclerotic degree (r=-0.243,P =0.014).Conclusions Most patients with acute ischemic stroke had cognitive impairment in the early stage after onset,and the MoCA scores was negatively correlated with the degree of cerebral atherosclerosis.Cerebral atherosclerosis was an independent risk factor for cognitive impairment in patientswith acute ischemic stroke.

Objective To explore the effect of sarcoplasmic reticulum Ca2+-ATPase (SERCA2a) overexpression on neuroendocrine system in chronic heart failure beagles. Methods The cardiac contraction function of chronic heart failure beagles were assessed by echocardiography before and after SERCA2a gene transduction. Radiation immune method was used to test the serum level of neuroendocrine factors such as Angiotensin Ⅱ, atrial natriuretic peptide, endothelin-1 and TNF-α, IL-6. Results The cardiac contraction function of chronic heart failure beagles improved greatly (P<0.05), and the serum levels of neuroendocrine factors significantly reduced after SERCA2a overexpression (P<0.05). Conclusion The vicious circle of neuroendocrine system may be blocked partially by SERCA2a overexpression.

OBJECTIVETo investigate the clinical efficiency of electrocoagulation for the treatment of noninvoluting congenital hemangioma.

METHODSSixteen infants with noninvoluting congenital hemangioma who were admitted to our hospital from January 2011 to June 2013 were included in this study. Color Doppler ultrasound was used to determine the hemangioma location, as well as its size and depth. High frequency electrocoagulation was adopted for the treatment. The output power was set at 10-20 W. The probes were inserted around the tumor or at the surface of the tumor. After switching on for 1-2 seconds, the direction and position of the probe was modulated until covering the whole tumor. After the treatment, the absorption of tumor was about 3-6 months. The efficiency was evaluated during the follow-up.

RESULTSTumor atrophy was obvious after treatment in all patients. The temperature around the tumor mass was decreased, and the aberrant blood signals were decreased under the ultrasonic examination. Complete or partial atrophy were observed. The efficiency was graded as level I, II, III, IV in 0, 2, 9 and 5 patients, respectively. One patient showed local infection due to improper nursing, which was completely relieved after corresponding treatment. No severe adverse events were observed.

CONCLUSIONSHigh-frequency electrocoagulation is effective for treating noninvoluting congenital hemangioma through coagulating the aberrant blood vessels in the tumor, interrupting the vascular endothelial cell, blocking the aberrant blood flow, as well as leading to atrophy and absorption of tumor mass. Besides, no obvious scar is observed after the surgery.

Electrocoagulation ; methods ; Hemangioma ; congenital ; diagnostic imaging ; surgery ; Hemangioma, Capillary ; congenital ; diagnostic imaging ; surgery ; Humans ; Infant ; Skin Neoplasms ; congenital ; diagnostic imaging ; surgery ; Temperature ; Ultrasonography

AIM: To analyze the nucleotide and putative amino acid sequences of PIA genes isolated from N. gonorrhoeae and to construct the prokaryotic expression system of PIA gene.METHODS: The entire PIA genes from 9 strains of N. gonorrhoeae were amplified by using high fidelity PCR. The target amplification fragments were sequenced after T-A cloning. Homology comparison of the nucleotide and putative amino acid sequences of PIA genes from the isolates with the reported sequences in GenBank was then performed. A prokaryotic expression system of PIA gene was constructed. Different dosages of IPTG were applied to induce the expression of the target recombinant protein (rPIA) and 10% SDS-PAGE plus Bio-Rad Agarose Image Analysor was used to determine the expression level of rPIA. rPIA was extracted using Ni-NTA affinity chromatography and the purified effect was detected by SDS-PAGE.RESULTS: In comparison with the reported PIA gene sequences (GenBank No: L19962), the homologies of nucleotide and putative amino acid sequences of PIA genes from the isolates were 99.6%-100% and 99.1%-100%, respectively, which indicated that all the isolates were belonging to serovars IA6. Output of rPIA was as high as 50.1% of the total bacterial proteins. The purified rPIA only showed a single target protein fragment in gel.CONCLUSION: Serovar IA6 is dominant in the local N. gonorrhoeae isolates and sequences of the encoding gene are relatively conserved. The constructed prokaryotic expression system is able to express rPIA with high efficiency, which may lay a foundation for further development of serological detection kit and vaccine of N. gonorrhoeae.