OBJECTIVE:To establish the quality criteria for Fufangzhixueling granules.METHODS:TLC was employed to identify Radix Astragali,Rhizoma cimicifuae and Radix Paeoniae Alba,while the content of AstragalosideⅣin Fufangzhix-ueling granules was deteminde by HPLC.RESULTS:TLC findings of Radix Astragali,Rhizoma cimicifuae and Radix Paeoniae Alba showed the spots of same colors as those developed in the corresponding places of control medical materials.The sample size of AstragalosideⅣshowed a good linear relationship within the range of1.551?g～9.306?g(r=0.9996)with the average recovery of97.98%(RSD=1.77%).CONCLUSION:The method is simple,accurate,stable,reliable and with good repro-ducibility,which can be used for the quality control of Fufangzhixueling granules.

OBJECTIVE:To improve the quality standard of rongshuanwan.METHODS:Danshen root,flos,angelica,Chuanxiong in rongshuanwan were respectively identified qualitatively by TLC.RESULTS:The chromatographic spots of samples showed the same colors with those of control agents.The color spectrum was clear without interference of impurity nearby.CONCLUSION:The established method has high specificity and can better control the quality of this drug.

Objective To analyze the influence of early active nursing on muscle strength in patients after major operation in intensive care unit(ICU). Methods Of 96 ICU patients after major operation were enrolled in the study, 49 patients were assigned to routine ICU nursing (control group, excluding 1 case), and 47 patients were assigned to early active nursing (intervention group, excluding 2 cases) by random number table method. The health condition, muscle strength between 2 groups were compared. Results Acute and chronic physiology score after intervention was (10.62 ±2.04) points in intervention group, and (12.54±2.28) points in control group, and there was significant difference, t=4.269 5, P<0.01. The score of muscle strength was (56.93±4.32) points in intervention group, and (49.42±5.48) points in control group, and there was significant difference, t=7.307 1, P<0.01. The incidence of ICU-acquired muscle weakness in intervention group (6.67%, 3/45) was significantly lower than that of control group (43.75%,21/48), χ2=16.681 5, P<0.01. Conclusions Early active nursing is of great importance to improve muscle strength and decrease the incidence of ICU-acquired muscle weakness.

Objective To investigate the early endotracheal intubation line to attract the effect of meconium aspiration. Methods April 2005 to April 2007 the relevant cases (A group) and April 2007 to April 2009 the related cases ( B group) were compared. Results B group and A group efficacy was superior (P < 0.05). Conclusion Early tracheal intubation attract ideal effect of meconium aspiration, it is worth promoting.

With the rapid development in science and technology,more and more advanced medical devices have been used in clinical practice.Consequently,the maintenance and management of the devices has become a task of modern hospitals.In this paper,the author discusses some issues for their maintenance and management.

Objective To investigate effect of Splenic Aminopeptide Oral Lyophilized Powder on urinary retinol-binding protein and CRP in children of mycoplasma pneumonia infection with asthma .Methods 60 cases were randomly divided into 2 groups, 30 cases of control group were given conventional anti-inflammatory treatment, azithromycin.30 patients of Experimental group were treated with Spleen Aminopeptide Oral Lyophilized Powder treatment, two groups were treated for 7 days.30 cases of healthy children were selected, given no any treatment.After treatment, urinary retinol binding protein, blood urea nitrogen, creatinine, cough, wheezing symptom recovery, C-reactive protein, blood and other changes were compared between two groups.ResuIts Two groups of children with urinary retinol binding protein, urea nitrogen, creatinine levels were improved in different degrees, and in experimental group, urinary retinol binding protein, urea nitrogen and creatinine decreased significantly compared with control group (P<0.05).Two groups of children with asthma and wheeze improved in different degrees, and cough wheeze, cough and wheeze recovery time of experimental group had more improvement than those of control group ( P<0.05 ) .Two group of C reactive protein and white blood cell level both improved in different degrees, and the experimental group of C reactive protein and white blood cell levels were significantly lower than those of control group (P<0.05).ConcIusion Spleen Aminopeptide Oral Lyophilized Powder can significantly improve the infection status of children with mycoplasma pneumonia, and relieve cough and wheeze symptoms, lower urinary retinol binding protein and C reactive protein level, improve kidney function damage induced by hypoxia.

Objective To correct the nonlinear error of sensor output, a new approach to sensor inverse modeling based on Back-Propagation Fuzzy Logical System (BP FS) is presented. Methods The BP FS is a computationally efficient nonlinear universal approximator, which is capable of implementing complex nonlinear mapping from its input pattern space to the output with fast convergence speed. Results The neuro-fuzzy hybrid system, i.e. BP FS, is then applied to construct nonlinear inverse model of pressure sensor. The experimental results show that the proposed inverse modeling method automatically compensates the associated nonlinear error in pressure estimation, and thus the performance of pressure sensor is significantly improved. Conclusion The proposed method can be widely used in nonlinearity correction of various kinds of sensors to compensate the effects of nonlinearity and temperature on sensor output.

Objective Through oral vaccination activity on polio,the epidemiological and virological surveillance of acute flaccid paralysis (AFP) case finds its way to develop, so that the realization of eradication on polio may be verified.Method Various kinds of immunization activities such as regular basic immunization, booster vaccination, intensified vaccination and mopping-up operation were adopted among children of the right age in the whole province. Zero case report and active surveillance on AFP were carried out to those population under 15 who had had consultation in medical unit above county level. Each reported case or found case was treated by individual case investigation, follow-up study and sample collection. All the samples were virus-isolated ad identified by RD, Hep-2 and L20B cells. Result Since 1991, an AFP case surveillance system has been built up. Up to the end of 2000, a total of 1,749 AFP cases had been reported in hunan province, from which 1,404 cases samples were collected, and another 218 cases samples of contacts were also collected. A sum of 7 polio wild virus strains was examined out. Since July 1993, no wild strain has been found (isolated). Conclusion Hunan Province has successfully intervened in the circus (spread) of polio wild virus, and hence realized the goal of polio eradication.

Objective To investigate wheter epigallocatechin gallate (EGCG) could prevent the information of abrant crypt loci (ACF) induced by isoquinoline (IQ)and its possible mechanisms. Methods Sixty male BALB/cA nude immunological deficit mice were divided into five groups. Except control group, the other four groups were received IQ to induce ACF. The rats in low, medium and high dose groups were received 5, 10 and 20 mg/kg of EGCG,respectively. The mice were sacrificed six weeks later. Hematoxylin-eosin (HE) staining and 0.2% methylene blue staining were used to observe the routine histology and ACF, respectively. Immunohistochemistry (IHC) was used to detect Nrf2 protein level and RT-PCR was used to detect Nrf2 and UGT1A10 mRNA levels in colon tissue. Results The body weights of model group decreased significantly compared to high-dose group (21.70±0.13 vs. 24.37±0.07, P<0.01). Compared to model group, the degree of atypical hyperplasia and even canceration of colon mucus and the number of total ACF and total AC in high-dose group were decreased significantly (18.00±7.51 vs. 64.20±45.18, P<0.05;63.90±18.58 vs. 168. 80±35.34, P<0.01). The protein level of Nrf2 increased (0.3114±0.0037 vs. 0.1660±0.0021, P<0.01). The mRNA levels of Nrf2 and UGT1A10 in high-dose group was increased (both P value<0.01). Conclusions EGCG has protective effect on IQ induced preneoplastic lesions through reducing the number of ACF. This effect may be caused partly through the signal pathway Nrf2-UGT1A10.

BACKGROUND: The neural stem cells (NSCs) will be clinically applied extensively in the future, and seeking of more promoting methods of the proliferation and differentiation of NSCs in vitro will be the study direction of NSCs.OBJECTIVE: To introduce an economic and time-saving method for NSCs proliferation.DESIGN: Observation and control experiment.SETTING: Beijing Neurosurgical Institute.MATERIALS: Four Wistar rats pregnant for 14 days with the body mass of (180±20) g (bought from Animal Department of Chinese Academyof Medical Sciences with the batch number of SCXK1100-0006 for experiment animals) were selected and fed at common temperature and humidity.The DMEM/F12 and B27 were bought from Gibco Corporation. The basic fibroblast growth factor (bFGF) and epidermal growth factor (EGF) were bought from PeproTech Company. The nidogen monoclonal antibody (MA),glial fibrillary acidic protein (GFAP) polyclonal antibody, galactocerebroside polyclonal antibody and microtubule-associated protein 2 (MAP2) were obtained from Chemicon Company. The fetal bovine serum (FCS) was provided by Hyclone company.METHODS: The experiment was conducted in the Department of Injury and Repair of Beijing Neurosurgical Institute from May to October 2004.Wistar rats were executed by dislocation and sterilized by putting into 75% alcohol. Four rats were used each time, the brain tissues of which were put into Hank's fluid. The cerebral pia mater and vessels were isolated under anatomical microscope, and the brain tissues were sheared off with eye scissors, which were filtered by 200 mesh copper grid and collected into 2 centrifuge tubes, and the supernatant was gotten rid off after that. ①Cells were divided into serum pre-culture group and control group according to whether there were serum pre-culture. The DMEM nutrient fluid of FCS (100 g/L) was added to serum pre-culture group, which was replaced by DMEM/F12 nutrient fluid of EGF, bFGF and B27 at 48 hours after culture. The cells in the control group were added with DMEM/F12 nutrient fluid of EGF, bFGF and B27 to culture in 5% CO2 incubator for one week at 37 ℃. The growth of NSCs at 48 hours after culture was observed in both groups under inverted contrast phase microscope.②On the 5th and 10th day after differentiation induced by 100 g/L FCS, nestin, GFAP, galactocerebroside and MAP2 were stained with immunofluorescence antibody,and the expressions of NSCs in both groups were observed under fluorescent microscope. The PBS buffer solution was used instead of first antibody in the control group, while other procedures were the same as above.MAIN OUTCOME MEASURES: ①Observation of NSCs growth at 48 hours after culture under contrast phase microscope in both groups. ②Detection of NSC specific antigen expressions with immunofluorescence stain in both groups.RESULTS: ①In the cells of the serum pre-culture group at 48 hours after culture, there were large number of regular NSC bulbs, most of which were aggregated by 8-10 cells. The proliferation of cell bulbs was accelerated after the nutrient fluid was replaced to DMEM/F12 nutrient fluid of EGF,bFGF and B27, while irregular lamellar cells could be seen in the control group at 48 hours after culture, and small regular cell bulbs were found at 4-5 days later. ②It could be seen under fluorescence microscope that on the 5th day after induced differentiation, the nestin, GFAP and galactocerebroside were positive, while MAP2 was negative. On the 10th day after induced differentiation, nestin and GFAP were positive, whereas the galactocerebroside and MAP2 were negative (no representation).CONCLUSION: Serum pre-culture can accelerate the bulb-aggregation of NSCs as well as promote the proliferation of NSCs.