Five natriuretic peptides (NP) have been identified: A-type, B-type, C-type, D-type and V-type. All of them have ringed-structures. The actions of the natriuretic peptides are modulated through their cognate receptors, which are named as NPR-A,NPR-B and NPR-C. The receptors are involved in the cGMP-dependent signaling cascades,which take part in many different physiological regulation, such as diureses,vasodilatation, depressing blood pressure, improving immunity, promoting development of bone, regulating nerve system and so on. At present, ANP and BNP have become a marker in diagnostic some cardiovascular diseases.

Objective To discuss CT and MRI performance and pathologic features about pseudomyxoma peritonei (PMP)con‐firmed by pathology which improves the PMP diagnosis level .Methods The CT and MRI informations about five cases with pseud‐omyxoma peritonei confirmed by abdominal puncture or surgery were analyzed retrospectively .Analyze the CT and MRI performance and clinical pathologic characteristics .Results In 5 cases ,one case of appendiceal mucous adenocarcinoma ,one case of acute appendi‐citis surgeried 2 years ago ,one case without any primary tumor ,one case of duodenal mucous adenocarcinoma ,one case of bilateral ovarian cancer with intra‐abdominal separated cystic lesion and/or peritoneal diffuse pie “frozen abdomen” change showed by CT , MRI ,and one case with pressure trace like scallops sample and multiple nodular around liver and spleen .Conclusion The lesion area and the shape of peritoneum pseudo myxoma can be showed by CT ,MRI scans .There is a certain special imaging feature .

OBJECTIVE To understand the infection of Acinetobacter baumannii(ABA) in children and make analysis for its resistance to 15 antibiotics.METHODS The collection of clinical strains of ABA isolated from the hospital.the pathogens were identified by MicroScan WalkAway-40 system.RESULTS Eighty-one(95%) ABA among 85 isolates were from respiratory tract.The result of drug susceptibility showed that ABA was highly sensitive to the 15 antibiotics.Multi-resistant ABA bacteria accounted for 8.2%(7/85).CONCLUSIONS ABA strains isolated from children patients show the trend of multi-drug resistance.we should pay more attention to monitor the susceptibility to antibiotics.

Objective:To study the clinical therapeutic effect of acupoint stimulation on obssession.Methods:60 inpatients and outpatients of obsession were divided into two groups,a chlorimipramine group(control group)and an acupoint stimulation plus chlorimipramine group(treatment group),30 cases in each group.Their therapeutic effect and adverse effects were evaluated with Y-BOCS, HAND,BPRS and TESS,respectively.Results:The cured rate and the markedly effective rate were 26.7% and 56.6% in control group and 43.3% and 76.7% in treatment group,respectively,the treatment group being better than the control group.The adverse reactive rate was 73.33% in control group and 46.67% in the treatment group with a significant difference between the two groups(P

Objective The study aimed to investigate the influence of head nurse's transformational leadership style on emotional labor and psychological empowerment of nurses.Methods Totally 851 staff nurses from four 3A hospitals were investigated with the Transformational Leadership Style Sub Scale of Multifactor Leadership Questionnaire,Psychological Empowerment Scale and Emotional Labor Scale.Results The head nurse's transformational leadership style scored (2.41±0.81).The psychological empowerment of nurses scored (3.27±0.47),its autonomy dimension scored (3.81±0.50),staying at medium level.The emotional labor of nurses scored (3.68±0.61),its deep acting dimension scored (4.67±0.76),which was above medium level.The indirect correlation coefficient between head nurse's transformational leadership style and emotional labor (r=-0.13) was far higher than direct correlation coefficient (r=-0.04).The psychological empowerment was the full mediation variable by which head nurse's transformational leadership style influence emotional labor of nurses.Conclusions Head nurse's transformational leadership style can enhance nurse's selfefficacy,cognition of work significance and work autonomy,so that nurse's deep acting and positive perception of emotional display can be increased,and nurse's emotional exhaustion and job burnout can be decreased to retain nurses.

To study the antiviral effect of Hypericum perforatum L. extract (HPE) on influenza A virus (IAV) (H1N1) in vitro and in vivo. Cytopathic effect (CPE) and neutral red (NR) dye uptake were used to examine the antiviral effect of HPE on Madin Darby Canine Kidney (MDCK) cells which were infected with IAV in vitro. HPE was effective against influenza A virus (IAV) in vitro, with a 50% effective concentration (EC50) of 40 μg/mL. The mean 50% cytotoxic concentration (CC50) in the MDCK used in these experiments was 1.5 mg/mL. Ribavirin was run in parallel with EC50 values of 5.0 μg/mL; the mean CC50 for ribavirin was 520 μg/mL. Oral gavage administrations of HPE or ribavirin to mice infected with the IAV were highly effective in preventing death, slowing the decline of arterial oxygen saturation, inhibiting lung consolidation and reducing lung virus titers. The minimum effective dose of HPE in these studies was 31.25 mg/kg/day, which was administered twice daily for 5 d beginning 4 h prior to virus exposure. Below a dosage of 2000 mg/kg/day, almost all treated mice survived, which suggests that HPE is of low toxicity. Ribavirin's minimum effective dose was 40 mg/kg/day with the LD50 determined to be 200 mg/kg/day. Delay of the initiation of either HPE or ribavirin therapy, using approximately 1/3 LD50 dose each time, could still be protective as late as 48 h after exposure to the IAV. While both agents appeared to have similar efficacy against IAV infections, HPE was considered to be less toxic and may warrant further evaluation as a possible therapy for influenza.

Objective To explore the value of Chinese ink in identifying sentinel lymph nodes(SLN) during radical resection of cervical carcinoma.Methods After sterilized Chinese ink(1ml) was infused in normal tissue at four points,extensive cervical resection and cleaning operation of pelvic lymph nodes were performed.Lymph nodes staining black in drainage field of pelvic lymph system were investigated.Results Lymph nodes staining black were found in 15 cases.The identifying rate was 100%(15/15).Positive lymph nodes were found in 2 cases with lymph node metastasis.The accurate rate of pelvic lymph nodes metastasis was 100%.Conclusion The effect is reliable by using Chinese ink as tracer of SLNs in cervical carcinoma.

Objective: To explore the effect of iodine overdose on cathepsin B and D in thyroidcell line (FRTL). Method: The cells were treated with potassium iodide (0, 1, 5, 10, 50 and 100mmol/L). After treatment 6, 12, 24, 48 and 72 hours, the cells were collected. The activities of cathepsin B (CB) and cathepsin D (CD) were assayed by fluorospectrophotometry and Lowry, respectively. The mRNA levels of CB and CD were determined with real-time PCR. Results: After 12 and 24 hours, the activities of CB and CD, treated by 50mmol/L potassium iodide were decreased significanty. The mRNA levels of CB and CD of 50mmol/L potassium iodide group were decreased significanty after treatment 24 hours. Conclusion: The decreased activities of CB and CD were one of reasons of thyroid colloid retention resulted from iodine excess.

Objective: To detect the damage of excessive iodine on the activities and mRNA of cathepsin B and D and observe the effects of selenium intervention. Method: Thyroid follicular epithelial cell line FRTL was cultured in Kaighn’s modified Ham’s F-12 medium. ① The cells were divided into 8 groups for detection of activities of cathepsin B and D (CB and CD). The medium of NI group did not contain selenium or iodine, while EI group contained 50 mmol/L KI, and IS group contained 50mmol/L KI and different dosages of 0.1,0.2,0.5,1.0,2.0 and 5.0 ?mol/L selenium (sodium selenite). ②The mRNA levels of cathepsin B and D were detected by real-time PCR. The medium of NI group and EI group was same as above, but IS group only contained 0.1?mol/L selenium besides 50mmol/L KI. Results: The activities of CB decreased in EI group (50mmol/L KI treated 12 h), while CD decreased after 24 h and both activities were improved in IS groups with 0.1~0.5?mol/L selenium. The mRNA levels of CB and CD in EI group decreased, while in IS group were improved. Conclusion: Excessive iodine resulted in goiter through decreased levels of activities and mRNA of CB and CD. The intervention of selenium on goiter mayinduce its amelioration effect on decrease of CB and CD activities and the optimal dosage ranges from 0.1?mol/L to 0.5?mol/L.

Objective: To determine the protective effect of zero-balanced ultraifltration and modiifed ultraifltration on infants’ pulmonary function atfer cardiac surgery. Methods: Sixty infants with congenital heart diseases were randomly divided into 3 groups: a zero-balanced ultraifltration group (Z group), a modiifed ultraifltration group (M group) and a zero-balanced ultraifltrationwith modified ultrafiltration group (Z+M group). Oxygenation index (OI), difference of alveoli-arterial oxygen pressure (P(A-α)O2), static lung compliance (Cstat), and airway resistance (Raw) were measured before caridopulmonary bypass (CPB, T1), 20 minutes atfer the CPB (T2), 2 h atfer the operation (T3), 6 h atfer the operation (T4) and 12 h atfer the operation (T5). hTe time of mechanical ventilation was also monitored. Results:Atfer the CPB, OI and Cstat in all groups decreased signiifcantly, while Raw and P(A-α)O2 increased signiifcantly. At T3, T4 and T5, OI and Cstat in the Z+M group were signiifcantly higher than those in the Z group and the M group (P<0.05), Raw andP(A-α)O2 in the Z+M group were signiifcantly lower than those in the Z group and the M group (P<0.05). hTe ventilation time in the Z+M group was signiifcantly shorter than that in the Z group and the M group (P<0.05). Conclusion:Zero-balanced ultrafiltration and modified ultrafiltration can effectively promote the pulmonary function atfer cardiac surgery in infants.