This paper is to study the stability of recombinant human epidermal growth factor (rhEGF) in artificial intestinal juice and gastric juice,providing references for its clinical application in intestinal and stomach injury.RhEGF was added into artificial intestinal juice and gastric juice respectively, and the content of rhEGF was determined with RIA at preset time points. The content of rhEGF in artificial gastric juice (pH 2) and intestinal juice (pH 6.8) had a tendency to decrease as time went by,reaching 43.46% and 21.91% from their baselines 1 h later respectively. But the decrease of rhEGF reached 89.62% and 79.52% 1 h after the presence of peptic enzymes respectively. The rhEGF in the artificial intestinal juice and gastric juice was relatively stable but the process of its inactivation could be greatly expedited in the presence of peptic enzymes.

[Objective] To investigate the effect of Shangke Quyu Tablet (a formula modified from Tao Hong Siwu Decoction) in treating acute traumatic swelling and pain of soft tissue. [Methods] Two hundred and forty-six cases of traumatic injury in four limbs, which were classified to Qi-stagnation and blood-stasis syndrome, were randomized to two groups. After given fracture reduction and dislocation fixation, group A (n = 164) was treated with self-prepared Shangke Quyu Tablet and group B with Tongxuekang Capsules (n = 82) . Therapeutic effect was evaluated after 10 days of treatment. [Results] In group A, 116 cases were markedly improved, 30 much improved, 14 improved and 4 ineffective; in group B, 44 cases were markedly improved, 18 much improved, 16 improved and 4 ineffective. The therapeutic effect in group A was better than that in group B (P

Objective To establish the quality control method for Huoguwan.Methods TLC was applied to detect the component of Danshen,Dihuang,Danggui,Chuanxiong,Sanqi,Tubiechong,and Zhicaowu in this compound preparation. HPLC was used to measure the concentration of Renshenzaogan Rg 1,Rb1and Sanqizaogan R1.Unitary C18analytical column (4.6 mm×250 mm,5 μm)was used with acetonitrile-water as the mobile phase(Flow rate:1.0 ml/min,column temperature:30 ℃,wavelength:203 nm).Results Each component showed distinct spots on TLC without interference.There are good linear relationship for Sanqizhaogan R1in the range of 39.92-399.2 μg/ml,Renshenzhaogan Rb1in 84.28-842.8 μg/ml and Renshenzhaogan Rg1in 135.86-1 358.6 μg/ml.The recovery was 102.35%,103.84% and 102.97% respectively.Conclusion The above described procedure was accurate and reproducible,which can be used as a method for the quality control of Huoguwan.

Objective To explore the effect of intra-and post-operative administration of supplemental high concentration oxygen on abdominal clean-contaminated surgical wound infection.Methods From January 2001 to June 2005, 425 patients undergoing abdominal clean-contaminated operation were randomly divided into receive FiO2 60 % (n=213, study group) or FiO2 28 % (n=212, control group) inspired oxygen during the operation and two hours postoperatively. The partial pressure of oxygen in arterial blood and the peripheral arterial oxygen saturation was were measured two hours after operation. During 15 postoperative days, the wounds that drained pus were considered infected.Results The results showed that the partial pressure of oxygen in arterial blood was significantly higher in the study group than in the control group (P

Objective To analyze the current situation of depressive symptoms among medical staff in Beijing City and its correlation with symptoms of anxiety, occupational stress and insomnia. Methods A total of 2 687 medical staff from 28 medical institutions in eight municipal districts of Beijing City were selected as study subjects using multi-stage sampling method. The basic situation, depression symptoms, anxiety symptoms, occupational stress and insomnia symptoms were investigated using the National Occupational Health Literacy Monitoring Questionnaire for Key Groups, Patient Health Questionaire-9, 7-item Generalized Anxiety Disorder Scale, Core Occupational Stress Scale, and Self-Sleep Management Questionnaire. Results The detection rate of depressive symptoms was 28.3%, and the detection rates of moderate, moderate-severe and severe depressive symptoms were 18.9%, 6.9% and 2.5%, respectively. The detection rate of anxiety symptoms was 41.3%, and the detection rates of mild, moderate and severe anxiety symptoms were 29.7%, 7.7% and 3.9%, respectively. The detection rate of occupational stress was 26.7%. The detection rate of insomnia symptoms was 36.6%. The results of multivariate logistic regression analysis showed that the risk of depressive symptoms in male medical staff was higher than that in female (P<0.05). The risk of depressive symptoms in night shift staff was higher than that in staff without night shift (P<0.05). The more severe the anxiety symptoms, the higher the risk of depressive symptoms (all P<0.01). The risk of depressive symptoms in medical staff with occupational stress was higher than those without occupational stress (P<0.01). The risk of depressive symptoms in medical staff with insomnia symptoms was higher than those without insomnia symptoms (P<0.01). Conclusion The detection rate of depressive symptoms among medical staff in Beijing City is relatively high. Gender, night shift, anxiety symptoms, occupational stress, and insomnia symptoms were independent risk factors of depressive symptoms.

Objective To establish a quality control method for Lvxintong Rugao. Methods Ketoconazole, Halcinonide and Neomycin sulfate were identified by TLC. The content of Ketoconazole and Halcinonide were determined by HPLC. The chromatographic column of Agilent ZORBAX SB-C₁₈ (4.6 mm×150 mm, 5 μm) column was used. Methanol-phosphate buffer (pH=7.40, 75:25) was applied as the mobile phase. The detection wavelength was 235 nm. The flow rate was 1.0 ml/min and the column temperature was set at room temperature. Neomycin Sulfate was determined by polarimetric analysis. Results The identification and determination methods showed good specificity. Ketoconazole and Halcinonide displayed good linearity within the range of 1.999~39.98 μg (r=0.999 9) and 0.400 8~8.016 μg (r=0.999 9), respectively. The average recoveries were 97.75% (RSD 0.77%) and 97.57% (RSD 0.84%), respectively. For the determination of Neomycin Sulfate, r=0.999 6 (n=6) in the range of 130.4~2 608 U/ml (n=6). The precision and repeatability of RSD were 1.1% and 1.6%, respectively. The solutions were stable in 6 h and the average recovery was 98.8% (RSD 2.6%). Conclusion The method could be used as the quality control method for Lvxintong Rugao.

Objective:To study the anti-fibrotic effect of ghrelin on high-fat diet-induced non-alcoholic steatohepatitis (NASH) in mice.Methods:24 male C57BL/6 mice were randomly divided into a normal diet group, a normal diet + ghrelin group, a high-fat diet group, and the high-fat diet + ghrelin group. The HFD and HFD+ghrelin groups were fed high-fat diet for 16 weeks to induce non-alcoholic steatohepatitis. Among them, the NCD+ghrelin group and HFD+ghrelin group were continuously given ghrelin intervention (11nmol·kg -1·d -1) for 2 weeks after feeding for 14 weeks. 16 mice were euthanized on weekends. The plasma levels of alanine aminotransferase (ALT) and hyaluronic acid (HA) were measured in mice. The content of hydroxyproline (Hyp) was determined in liver tissue. RT-qPCR was used to detect the mRNA expression levels of transforming growth factor β1 (TGF-β1) and collagen types I, III, and IV in liver tissue. A Western blot was used to detect the expression level of the α-smooth muscle actin (α-SMA) protein in liver tissue. HE staining was used to observe the morphological changes in liver tissue. VG staining was used to observe the fibrotic condition in liver tissue. Results:Compared with the NCD group, plasma ALT (266.80±146.80)U/L, HA (219.00±39.47) ng/ml levels, Hyp content (0.35±0.05)μg/mg prot ( P < 0.05), mRNA expression levels of transforming growth factor β1 (TGF-β1) and collagen types I, III, IV ( P < 0.05), and the expression level of α-SMA protein in the HFD group were significantly increased ( P < 0.05), with congestion in the hepatic central lobular veins, hepatocytes swelling, and deposition of a large amount of collagen fibers in liver tissue. Compared with the HFD group, plasma ALT (57.17±20.88)U/L, HA (75.68±8.40)μg/mg levels, Hyp content (0.19±0.07)μg/mg prot, mRNA expression levels of transforming growth factor β1 (TGF-β1) and collagen types I, III, IV ( P < 0.05), and the expression level of α-SMA protein in the HFD+ghrelin mice group was significantly reduced ( P < 0.05), with only mild sinusoidal congestion in the liver tissue but significant improvement and reduction in liver injury and collagen fiber deposition. Conclusion:Ghrelin has a significant improvement effect on liver fibrosis in NASH mice.