Objective:To optimize the formula and preparation process of prepare sorafenib dry suspension and detect the content by HPLC. Methods:The influence of single factor including different fillers, suspending agents, adhesives and disintegrants on the sedimentation rate, redispersibility and drying shrinkage of sorafenib dry suspension was observed. Orthogonal design was used to opti-mize the formula and preparation process of the suspension, and HPLC was used to determine the content of sorafenib. The chromato-graphic column was Inertsil ODS-3 (250 mm × 4. 6 mm, 5μm), the mobile phase was 20 mmol·L-1 ammonium acetate buffer-aceto-nitrile(28 ∶72), the detection wavelength was 266 nm, the flow rate was 1. 0 ml·min-1, the column temperature was 40℃, and the sample size was 20 μl. Results:The optimal formula and preparation process were as follows:sucrose (48%) was used as the filler, xanthan gum (28%) and CMC-Na (12%) were the suspending agents, MCC (10%) was used as the disintegrant, and 6% PVP (in 50% ethanol) was the adhesive. The linear range of sorafenib was 1-100 μg·ml-1(r=0.999 8), and the recovery was 98.96%(RSD=0. 75%, n=9). Conclusion:The optimal formula and preparation process are repeatable. The HPLC method is simple and specific, which can be used to determine sorafenib.

Nuclear factor kappa B(NF-?B) is a pleiotropic nuclear transcriptive factor widely expressed in the nervous system.Recently,studies have demonstrated that NF-?B is also expressed in neural stem cells and may play an important role in their proliferation,migration and differentiation.This article reviews the recent advances in this new research field.

Objective:To investigate the in vitro release behavior and stability of diphenyl diester suspension. Methods:The dis-solution of biphenyl diester dry suspension was detected by HPLC, and the effects of different stirring speed (50, 75, 100 r·min-1 ) and different dissolution media (pH 6. 8 phosphate buffer, 0. 05 mol·L-1 hydrochloric acid solution,water,pH 4. 5 acetate buffer) on dissolution were investigated. The influencing factors testing ( high temperature, high humidity and strong light exposure) , accelerated stability testing[the temperature of (37 ± 5) ℃ and the relative humidity of 76％ ± 5％] and long-term stability testing[(25 ± 3) ℃and the relative humidity of 60％ ± 5 ％] of biphenyl diester dry suspension were carried out. Results:The dissolution behavior of bi-phenyl diester suspension in pH 6. 8 phosphate buffer (50 r·min-1 ) was faster and smoother. The results of influencing factors testing showed that biphenyl diester dry suspension should not be stored under the conditions of high temperature and high humidity. After the samples were stored under the conditions of accelerated testing and long-term stability testing for 6 months, the indicators did not change significantly. Conclusion:The in vitro release of prepared biphenyl diester dry suspension meets the requirements with promis-ing stability.

Post-stroke depression (PSD) is a common complication of stroke. Its patogenesis is complex, mainly including the mechanisms of neurobiotogy and social psychology. So far, there has been no uniform conclusion both at home and abroad. Now it is considered that PSD is the results of comprehensive effect of various neurobiology and social psychology, and its onset is in accordance with the bio-psycho-social medical model.

Objective:To forecast the indicators on maternal and child health of China in 2020.Methods: Based on Surveillance data of the indicators on the maternal and child health in China since the 1990s,forecasting models were found using auto-regressive method,and the indicators on maternal and child health in China in 2020 were forecasted using the models after they had been tested and valued.Results: Auto-regressive models on infant mortality rate(IMR),under-5 mortality rate(U5MR) and maternal mortality(MMR) were found.The models and their parameters passed statistical tests,and their mean absolute error was 5% or so and determination coefficients were all more than 90%.Conclusion: The IMR of China in 2020 was forecasted to be 6.35‰,the U5MR 7.37‰ and the MMR 22.21/100 000.

Objective The CT values and glial fibrillary acidic Drotein (GFAP) expression changes within 24 hours in the cerebral infarction of rats were observed in order to evaluate the time of infarction indirectly. Methods The animal models of cerebral infarction due to the embolism of middle cerebral arteries were replicated reference to Longa’s thread embolism method. The rats with cerebral infarction in right hemisphere and without cerebral infarction in left cerebral hemisphere were scanned with CT at different time after cerebral infarction,then the CT values were measured and their differences were calculated. At the same time,the GFAP expression changes were detected by immunohistochemical technique (SP method). Results The infarction focuses were observed in all rats in 6 hours group. The differences of the CT values in the infarction hemisphere (right side in brain) and non-infarction (left side in brain) hemisphere had in linear relationship,and the GFAP expression also related to the time of infarction to certain degree. Conclusion Cerebral infarction due to embolism of blood vessel could be diagnosed at least 6 hours after middle cerebral artery occlusion. The time of cerebral infarction could be inferred by the difference of CT values between the infarction and non-infarction hemispheres and the changes of GFAP expression.

OBJECTIVE: To provide reference for the rapid enhancement of clinical pharmacists's level in medication.METHODS: An "eight-part essay"style analysis was conducted with the medication orders of typical cases as example to analyze the several important items including patients' condition,drugs,and adverse drug reactions etc.RESULTS: The "eight-part essay"style case analysis sped up pharmacists' acquisition on medication analysis and help them find the start point for clinical medication.CONCLUSION: Medication analysis is very helpful in facilitating pharmacists' work and improving medical corps' drug treatment level.

Objective To investigate the clinical forensic assessment on cases of suspected medical malpractice and the other related aspects concerning the assessment in clinical forensic expertise. Methods Clinical data from 25 cases expertized for suspicion of medical malpractice were retrospectively analyzed. Results 16 cases were due to the medical muff (10 cases of 16 medical muff had a bad consequence and happened in the department of operation, 6 cases had not ones); 9 cases were non-medical muff. Conclusion Though the medical muff recognized is basic, but the relationship between the medical muff and the following bad results of medical muff is the best key for the forensic expertise. Otherwise, the scientific and practical value must be considered in the forensic expertise.

Objective:To study the mechanism of anti-proliferative effect of lupeol on highly metastatic human hepatocellular car-cinoma HCCLM3 cells. Methods:CCK-8 assay was performed to evaluate the effects of lupeol at different concentration on cell viability in 12-48 h. Caspase inhibitors were used to identify the subtypes of caspases activated during lupeol-induced cell death. The effects of lupeol on the mRNA expression of caspase family and Bcl-2 related genes were detected by real-time PCR. The effects of lupeol on HC-CLM3 cell phase distribution were investigated by flow cytometry. Results:Compared with the control group, lupeol could inhibit HC-CLM3 cell proliferation in a concentration-dependent manner with IC50 of 93 μmol·L-1 in 24h. The number of HCCLM3 cells in the period of G2/M was increased by 1-fold when the lupeol concentration was within 60-100 μmol·L-1 . Lupeol could activate the path-way of caspase, and the mRNA expression of caspase-3 was elevated by 50%-150% when compared with that in the control group. Mo-reover, the mRNA expression of p53 and Bax were increased above 1-fold by lupeol at 100 μmol·L-1 , and the Bcl-2 and PARP ex-pression were significantly suppressed by lupeol at 60-100 μmol·L-1(P<0. 05 or P<0. 01). Conclusion:The results indicate that lupeol has anti-proliferative effect on the liver cancer cells, which is beneficial to the prevention and treatment of liver cancer.

Objective: To prepare mesalazine thermosensitive liquid suppositories and study the in vitro properties. Methods:Poloxamer 407 (P407) and poloxamer 188 (P188) were used as the temperature-sensitive materials, and mesalazine thermosensitive liquid suppositories were prepared by a cold method. The optimal ratio of P407 and P188 was screened using gel temperature as the in-dex. The gel strength and bioadhesive force of mesalazine thermosensitive liquid suppositories were studied, and the in vitro gel erosion and drug release were investigated as well. Results:The optimal ratio of P407 and P188 was 20%: 2. 5%, and the gel temperature was (36.9 ±0.2)℃, the gel strength was (115.1 ±3.2)s and the bioadhesive force was (130.7 ±5.8) ×102 dyne·cm-2. The drug release and gel erosion in vitro were both fitted first-order kinetics, and the two had promising linear relationship, suggesting good sustained-release property based on gel erosion mechanism of mesalazine liquid suppositories. Conclusion:The preparation of mesala-zine liquid suppositories is simple, and the gelation, bioadhesion and sustained-release of the suppositories are promising. Mesalazine liquid suppositories are valuable to be studied further.