To compare the anxiolytic effects of reduced metabolite of progesterone and benzodiazepine.Methods　The effects of allopregnanolone and diazepam on spontaneous locomotor activity and on exploration in the elevated plus-maze were studied in C57 mice 20 min after vehicle or drug intraperitoneal administration.Results Allopregnanolone (0.1 mg.kg-1,ip) elicited marked anxiolytic effects in terms of significantly reducing the latency to enter the open arm from (31.30±8.39)s to (8.80±6.00)s,(P<0.001),and significantly increasing both the number of open arm entries from 1.20 ± 0.42 to 4.80 ±1.75,(P<0.001) and the proportion of total time spent on the open arm from 7.13％ to 32.50％,(P<0.001).Meanwhile,the diazepam (0.25 mg·kg-1) produced a lower anxiolytic effect comparing to that of the allopregnanolone.Analysis of spontaneous locomotor activity showed while 0.5 mg·kg-1 of diazepam decreased the locomotor activity (P<0.01),neither 0.1 mg·kg-1 of allopregnanolone nor 0.25 mg·kg-1 of diazepam affect the locomotor activity score.Conclusion Together,these results provide evidence for differential behavioral actions of the neurosteroids and benzodiazepines.Since the allopregnanolone produce a selective anxiolytic effect without affecting the spontaneous locomotor activity,the allopregnanolone may be a better alternative for diazepam in treating anxiety.

Objective To investigate the expression and clinical significance of thyroid transcription factor-1(TTF-1)and chromogranin A(CgA)in small cell lung cancer(SCLC). Methods The expressions of TTF-1 and CgA protein in 68 cases of SCLC tissues and 20 cases of normal lung tissues were examined by immunohistochemistry method,and their correlations with clinical features of SCLC were analyzed. Results The positive rates of TTF-1 and CgA protein in SCLC were 88. 2%(60 / 68)and 70. 6%(48 / 68),respec-tively,and they were higher than those in normal lung tissue[10. 0%(2 / 20)and 5. 0%(1 / 20);χ2 = 45. 442, P = 0. 000;χ2 = 26. 941,P = 0. 000]. The expression of TTF-1 protein was not related to the patients' age,sex and tumor size,while closely related to smoking index(χ2 = 4. 131,P = 0. 042),lymph node metastasis(χ2 =5. 488,P = 0. 019)and clinical stage(χ2 = 6. 011,P = 0. 014). The expression of CgA protein was not related to the patients' age,sex,tumor size and smoking index,while closely related to lymph node metastasis(χ2 =9. 895,P = 0. 002)and clinical stage(χ2 = 4. 145,P = 0. 042). Conclusion TTF-1 and CgA protein are highly expressed in SCLC,especially in the patients with lymph node metastasis and extensive disease.

As the specific endangered medicinal plant in Xinjiang, resources and distribution of Ferula sinkiangen-sis are important for biodiversity conservation and sustainable development of Chinese medicine resources. The spa-tial distribution and resources of F. sinkiangensis were researched based on low altitude remote sensing and sample investigation. The results showed that the optimum working time for F. sinkiangensis monitoring by low altitude remote sensing was the nearby 5 hills, which covered about 0.88 km2. It was suggested that the fence area should be expanded for protection. According to the results of low altitude remote sensing, the amount of F. sinkiangensis in yellow (diameter exceeding 0.3 m) was about 3 191. However, the sample investigation on amount of F. sinkiangensis in yellow (diameter exceeding 0.3 m) was about 2 752. The error between them was 14%. The monitoring time and range for F. sinkiangensis by low altitude remote sensing were also ensured. It was concluded that low altitude re-mote sensing had the advantage of quickly receiving distribution situation of F. sinkiangensis, which can effectively evaluate dynamic changes of F. sinkiangensis in Xinjiang.

Objective To investigate the effect of special CT monochromatic images on improving imaging quality in Budd-Chiari Syndrome.Methods 40 patients with Budd-Chiari Syndrome underwent CT venography (CTV)with gemstone spectral imaging (GSI).Using the optimal contrast to noise ratio (CNR)curve of GSI software,the optimal CNR monochromatic images of the infe-rior vena cava and hepatic vein were chosen.The CT value of the intrahepatic segment of inferior vena cava,hepatic vein and the same level liver tissue were measured,and the CT value of the same region were measured on 140 kVp mixed energy images and 70 keV images.CNR on the optimal monochromatic images,the 140 kVp mixed energy images and 70 keV images were calculated respectively,and the image quality of the optimal monochromatic image,the 140 kVp mixed energy images and 70 keV images were subjective scoring.One-way ANOVA was used for statistical analysis using SPSS1 7.0 software.Results The optimal keVs from monochromatic images were distributed at 40 keV (50%)and (5 1 ± 1 )keV (50%)for IVC and 40keV (25%)and (53 ± 3)keV (75%)for HV.The CNR and CT value and subjective score of IVC/HV got from the optimal monochromatic images were signifi-cantly higher than those from 140 kVp mixed energy images and 70 keV images respectively(P <0.01 ).Conclusion The optimal monochromatic images provide higher image quality of IVC and HV in patientswithBudd-Chiari syndrome.

Purpose To evaluate the diagnostic value of non-contrast-enhanced MR venography (NCE-MRV) for Budd-Chiari syndrome (BCS). Materials and Methods NCE-MRV and digital subtraction angiography (DSA) examination were performed in thirty-five patients with suspected BCS. The diagnostic agreement between them were compared. The sensitivity, specificity, accuracy, negative predictive value and positive predictive value were also calculated. Results In all 35 patients, 32 were diagnosed as BCS on DSA, and 33 on NCE-MRV. DSA showed inferior vena cava membrane stenosis in 8 patients compared to 10 on NCE-MRV;membrane obstruction in 7 compared to 6 on NCE-MRV, segmental stenosis in 3 compared to 4 on NCE-MRV;segmental obstruction in 10 compared to 10 on NCE-MRV, IVC thrombosis in 5 compared to 5 on NCE-MRV. The sensitivity, specificity, accuracy, negative predictive value and positive predictive value of NCE-MRV in diagnosing BCS were 100.0%, 67.8%, 97.1%, 100.0%and 96.9%, respectively. There was good intra-modality agreement (Kappa=0.89). NCE-MRV also demonstrated intra-hepatic collaterals in 30 patients, extra-hepatic collaterals in 27 cases, and accessory hepatic veins in 25 cases. Conclusion NCE-MRV has excellent diagnostic agreement with DSA in diagnosing inferior vena cava lesion in patients with BCS. It may be used in noninvasive diagnosis.

Objective To investigate the environmental impact of the Japanese Fukushima No.1 nuclear power plant accident on radiation levels in some areas of Liaoning province.Methods The emergent monitoring was performed by detecting atmosphere aerosols,precipitations,drinking water,vegetables,milk and seafood by gamma spectrometry analysis and gross activity measurements.Results The fission radionuclides of 131I,134Cs and 137Cs were detected in atmosphere aerosols 20 d after nuclear accident.The rad ionuclides of 131I,134Cs and 137Cs were found existing in atmosphere for 25,4 and 6 d,respectively,with the highest concentrations of 4.6 × 10 3,2.9 × 10-4 and 4.2 × 10-4 Bq/m3,respectively.The man-made fission radionuclides could not be detected in vegetablcs,drinking water and milk from Shenyang city and seafood from Dandong city.Conclusions The atmosphere might be slightly contaminated in Liaoning province due to the nuclear accident,whereas the vegetables,milk and drinking water not contaminated.

The implementation of the global budget system requires the hospitals to be supported by advanced medical insurance information management systems.The design and application of the medical insurance information management platform at the hospital can optimize management processes,improve the management level,save management costs,establish database,and promote the development of medical insurance.

Objective: To analyze the long-term prognosis of re-operation in patients with functional tricuspid regurgitation (FTR) after left sided valve replacement (LSVR) and hence evaluate the optimal timing of mentioned re-operation. Methods: A total of 59 FTR patients who had re-operation after their prior LSVR in our hospital from 1999-01 to 2013-01 were analyzed. The clinical information and post-operative follow-up results were recorded in all patients. Results: There were 5/59 (8.5%) patients died in peri-operative period and the overall post-operative mortality was 11.9% (7/59). The follow-up data of 54 survivors were available for the mean time of 51.1 (21-188) months. There were 19/54 (35.2%) patients suffered from MACE and 30 (55.6%) were beneifted by improved cardiac function. Uni-variable analysis indicated that pre-operative NYHA class IV (P=0.008), pre-operative right ventricular (RV) dysfunction (P=0.037), concomitant left-sided redo-operation (P=0.017) and TVR operation (P=0.002) were associated with all cause mortality of tricuspid re-operation. Multi-variable Cox regression analysis showed that pre-operative RV dysfunction was the only independent risk factor of long term MACE-free accumulating survival rate (HR=3.0, 95% CI 1.11-8.2,P=0.031); while TVR operation (HR=12.8, 95% CI 1.53-107.02,P=0.019) and pre-operative NYHA class IV (HR=5.3, 95% CI 1.20-24.51,P=0.032) were the independent risk factors for long-term mortality in patients after tricuspid re-operation. Conclusion: Patients with compensatory RV function showed better long term prognosis after secondary tricuspid operation. Aggressive re-operation before the occurrence of right ventricular dysfunction could be beneficial for relevant patients.

Objective To investigate the feasibility of iterative model reconstruction (IMR) combined with low tube voltage and low iodine intaken of contrast media in head and neck CT angiography (CTA). Methods Eighty patients with clinical suspicion of head and neck vascular disease underwent head and neck CTA were enrolled in this prospective study. According to random number table, patients were randomly divided into two groups. Group A (n=40) was scanned according to the protocol of 120 kV, 50 ml iopromide (370 mg/ml) and filtered back projection (FBP) reconstruction, and group B (n=40) was scanned with 80 kV, 30 ml iohexol (300 mg/ml) and IMR, while the other parameters kept consistent. Mann-Whitney U test was used to compare the enhanced CT value of arteries, image noise, signal noise ratio (SNR), contrast noise ratio (CNR), the score of image quality, effective radiation dose (ED) and iodine intaken of contrast media between two groups. Results The CT value at the origin level of common carotid artery were (316.9 ± 53.0) and (433.4 ± 101.8)HU in group A and B, image noise were (28.1 ± 6.8)and (12.1 ± 2.6)HU ,SNR were (11.9 ± 3.2) and (37.7 ± 13.3) ,and CNR were (10.2 ± 2.9) and (32.6 ± 13.3), respectively. There were showed significant differences in CT value, image noise, SNR and CNR between two groups (Z=-5.490,-7.592,-7.698,-7.660, P<0.05). The CT value at the origin level of internal carotid artery were (359.5 ± 54.3) and (443.5 ± 120.1) HU in group A and B, image noise were (18.8±6.2) and (6.8±1.7) HU ,SNR were 21.5±8.7 and 69.7±27.4 ,and CNR were 18.0±7.3 and 62.7± 26.4, respectively. The significant differences were acquired in CT value, image noise, SNR and CNR between two groups (Z=-3.022,-7.376,-7.496,-7.515, P<0.05). The CT value at M1 segment level of middle cerebral artery were (321.1±47.3) and (401.6±104.0) HU in group A and B, image noise were (32.3± 17.2) and (11.2 ± 2.7) HU,SNR were 12.4 ± 5.6 and 39.3 ± 18.4,and CNR were 10.7 ± 4.7 and 36.4 ± 17.7, respectively. There also showed significant differences in CT value, image noise, SNR and CNR between two groups (Z=-3.527,-7.487,-7.482,-7.535, P<0.05). The score of image quality of group A and B were 3.9 ± 0.7 and 4.5±0.6, which also showed significant difference between two two groups (Z=-3.517, P<0.05). The ED were (2.78 ± 0.13) and (0.84 ± 0.04) mSv for group A and B, which also showed significant difference between the two groups (Z=-7.706, P<0.05). The iodine intaken of contrast media were 1.85 g and 0.90 g in group A and B. Conclusion IMR combined with low tube voltage and low iodine intaken of contrast media can not only decrease effective radiation dose and iodine intaken of contrast media significantly, but also improve the imaging quality in head and neck CTA examination.

Objective To extraction method optimization and the content of the different parts of Xinjiang Bergenia crassifolia (L.), provide the basis for efficient extraction of Bergenia crassifolia pigment. Method Using the orthogonal experiment, the alcohol extraction process of ethanol concentration, dosage of ethanol, extraction time, extraction times, as well as to Bergenia crassifolia pigment content of the different part. Results Of optimization, the best ethanol extract of xinjiang Bergenia crassifolia pigment process conditions is 8 times the amount of 50%ethanol, extracting 3 times, each time 0.5 h. In Bergenia crassifolia pigment content of different parts exists obvious difference. Bergenia crassifolia pigment content of Taproot and fibrous root is higher, at 8.65%to 9.58%, while Bergenia crassifolia pigment content of the leaves is relatively low, at just 0.15%. Bergenia crassifolia pigment content of leaves significantly higher than the old leaves. Conclusion This experimental study on efficient extraction of xinjiang Bergenia crassifolia pigment to provide strong technical support and theoretical basis.