Objective To determinate Berberine chloride in compound Wuzhigan capsules and develop a steady and reliable method for the quality control of the capsules.Methods A HPLC method was adopted.The column was Diamonsil C18 (250 mm?4.6 mm,5 ?m) with the column temperature of 30 ℃,the mobile phase was acetonitrile-0.033 mol/L potassium dihydrogen phosphate (30∶70) with the flow rate of 1.0 mL/min,and the detection wavelength was at 347 nm.Results Berberine chloride has a linearity in the range of 2.52～12.6 ?g/mL,and the average content in the capsules was 1.686 mg/capsules.Conclusion This method is sample,accurate,and can be used for the quality control of compound Wuzhigan capsules.

BACKGROUND:Chinese herb, bushen yizhi formula protects at certain extent learning and memory in rat model of Alzheimer disease. The drug serum in this formula can alleviate neurotoxic reaction of nerve tumor cell NG 108-15 to beta-amyloid protein. In order to understand further the mechanism and compatibility of the formula, it is necessary to carry on the study on the broken formulas.OBJECTIVE:To study the effect of drug serum in subgroups of broken bushen yizhi formulas on growth and differentiation of cell model of Alzheimer disease and probe into the compatibility rule of bushen yizhi formula in view of serum pharmacology.DESIGN: Randomized controlled experiment.SETTING: DME Center of Clinical Pharmacological Institute Affiliated to Guangzhou University of Traditional Chinese Medicine.PARTICIPANTS:The experiment was performed in DME Center of Clinical Pharmacological Institute Affiliated to Guangzhou University of Traditional Chinese Medicine from January to August 2003, in which, 40 healthy male SD rats of 3 months old were employed and NG108-15 cell line was frozen-preserved.into the control, original formula group (No. 1 group) [shechuanzi (Cnidium monnieri (L.) Cuss), gouqizi (Lycium barbarum L.), renshen (Panax ginseng C.A.Mey.), heshouwu (Polygonum multiflorum Thunb.), danpi (Paeonia Suffruticisa Andr.) and bingpian (Borneolum)], kidney replenishment group (No.2 group) [shechuanzi (Cnidium monnieri (L.) Cuss), gouqizi (Lycium barbarum L.), etc.], group for benefiting qi and nourishing blood (No.3 group)[renshen (Panaz ginseng C.A.Mey), zhishouwu (Polygonum multiflorum Thunb.), etc.] and group with bingpian (Borneolum) removed (No.4 group)[Panax ginseng C.A.Mey.], heshouwu (Polygonum multiflorum Thunb.) and danpi (Paeonia Suffruticisa Andr.)], 8 rats in each group. The concentrated Chinese herbal solutions of every group were applied at 10 μL/g (equal to 6 g/kg of raw herbs) for gastric infusion successively,continuously for 1 month. In the control, the physical saline solution of equal dosage was used for infusion. Two hours after the last gastric infusion in rats of each group,the blood was collected from heart after anesthesia and the serum was sepaNG108-15 cell cultured in vitro was divided into 6 groups. In the control and model group, normal rat serum was contained in proliferated culture solution. In the rest 4 groups, the drug serum of No. 1 group and 3 sub-groups was contained.Simultaneously, beta-amyloid protein 25-35 in each hole was prepared to the terminal concentration 5 μmol/L (except in the control) and the culture went on for 48 hours.MAIN OUTCOME MEASURES:MTT method was used to determine proliferated number and survival rate of cells. Simultaneously, the ratio of neurite cells to total cell count and average length of neurit were determined.icantly than the control (0.520±0.022, 0.665±0.037, P ＜ 0.01), and that in every drug serum group was higher than model group, of which, the result vival rate of differentiated cells: That in model group was lower significantly than the control (58.4%, 100%) and that in every drug serum group was higher than model group, of which, the result in No.4 group was the most tal cell count: That in model group was lower significantly than the control [(42.95±11.42)%, (58.75±12.84)%, P ＜ 0.01] and that in every drug serum group was higher than model group, of which, the result in No.4 group was rite: That in model group was shorter significantly than the control [(356.0 ±109.0), (493.8±133.0) μm, P ＜ 0.01] and that in every drug serum group was longer than model group, of which, the result in No.4 group was the most significant [(486.8±79.2) μm, P ＜ 0.01].CONCLUSION: The drug serum in all of bushen yizhi formula and every subgroup inhibits at certain extent the injury of beta-amyloid protein 25-35 to NG108-15 cell, but the results of each group are various. The protection of drug serum to the cell in every group is in the sequence from strong to weak as group with bingpian removed ＞ original formula group ＞ kidney replenishment group ＞ group for benefiting qi and nourishing blood. It is to expect a further study on the efficacy of group with bingpian removed.

Objective To study the optimum preparation process of gastrodin liposome, characterization its structure.Methods Perpared gastrodin liposome with film-ultrasonic method.The entrapment efficiency as index, quality between lecithin and cholesterol ratio, oil-water phase volume ratio and ultrasonic time as factors by L9 (34 ) orthogonal test to optimize the preparation process.Observed the liposome morphology, particle size and distribution under the microscope, and determined the entrapment efficiency and stability.Results Regression equation was Y=239.75 +0.0207X(n=5), R2 =0.9996, 0.002 to 0.010 mg/mL had a good linear relationship.The optimum of preparation process: lecithin and cholesterol quality ratio was 4:1, water and oil phase volume ratio of 3:1, ultrasonic time control for 60 min;Liposomes showed spherical or oval shape, regular shape, uniform size.The average entrapment efficiency was 60.65%, the average particle size distribution at 327 nm, and it had good stability.Conclusion The preparation of gastrodine liposome has advantages of simple, higher entrapment efficiency and even particle size.The method can be used for embedded water-soluble medicine.

Objective:To investigate the characteristics of magnetic resonance imaging and clinical application of multi-modality magnetic resonance imaging (MRI) for evaluating the response of neoadjuvant chemotherapy (NACT) in inflammatory breast cancer (IBC).Methods:A total of 36 IBC patients were enrolled in the study.The morphological, hemodynamic and diffusion-weighted imaging features of MRI were analyzed. Eleven patients underwent MRI examination before and after NAT. The imaging changes were analyzed and the efficacy of NACT was evaluated.Results:There were 38 identified breast carcinoma in these 36 cases, among which abnormal skin thickening and enhancement, extensive edema was found in 37 breast lesions. Enhancement of breast lesions in 25 cases was non-mass-like enhancement. Diffusion limitation was found in all lesions. The number of vessels in affected side was more than that in healthy side in MIP images. Thirty three cases had axillary lymph node enlargement.The sensitivity and specificity of MRI in evaluating residual breast tumors and vascular thrombus were high, but the evaluation of axillary lymph nodes was relatively low.Conclusions:Multi-modal MRI can be used for early and accurate diagnosis of IBC. It can also be used to predict and evaluate the effect of neoadjuvant chemotherapy.

The paper introduced the third-party satisfaction measurement and refined appraisal for quality continuous improvement programs launched by the hospital,and the PDCA management tools which optimized quality of care and patient satisfaction.The hospital is thus recommended to leverage databases for big data comparison,and carry out refined management on such basis,for the purposes of better performance management,higher doctor-patient friendship and patient trust.

Objective To observe the effects of Bushen Yizhi Decociton (BYD) on somatostatin-like (SS-like)neurons in hippocampal gyrus of rat models with Alzheimer's disease(AD). Methods Fifteen-month_old AD rat models were established by intraperitoneral injection of D-galactose for 4 weeks combined with ibotenic acid injection into bilateral nucleus basalis of Meynert. AD model rats were randomly allocated to AD model group(Group C), Hup-A treatment group(Group D) and BYD treatment groups (Group E and Group F,treated with high dosage and low dosage respectively), and 10 normal aged rats (Group B)and 10 normal youth rats (Group A)served as the normal control groups. The methods of immunohistochemistry and dig_labeling c-DNA probe in situ hibridization were used to detect the number of SS-like immunoreactive positive and SS mRNA expressed positive neurons in hippocampal CA1 and CA3 fields and the dentate gyrus. Results The number and optic density of SS-like immunoreactive positive and SS mRNA expressed positive neurons were higher in BYD treatment groups than those in Group C (P

Objective To investigate early and differential diagnosis of Alzheimer disease and vascular dementia (VD)using FDG-PET scan. Methods Clinical data was collected from AD,VD and normal control(NC). 18F-2-fluo-ro-deoxy-D-glucose(18F-FDG)PET scan was conducted to detect the cerebral FDG metabolism. The average standard uptake value (SUV) of cerebral regions was expressed as semiquantitative index relative to ipsilateral cerebellum. Re-sults There were no differences in age and the mean total scores of the mini mental status examination (MMSE) between patients with VD and those with AD.The AD group showed that the SUV was significantly decreased in the right frontal, parietal,temporal lobe,hippocampus,temporo-parietal junction,and bilateral posterior cingulate cortex compared to the VD and in the bilateral posterior cingulate cortex,temporo-parietal junction,frontal and temporal lobe comparing to the NC(P≤0.01). SUV was significantly increased in the right parietal,posterior cingulate cortex and hippocampus whereas was significantly decreased in the left frontal lobe,temporo-parietal junction and thalamus in the VD compared with NC group(P≤0.01). Conclusion AD patients have typical features of 18F-FDG PET which may be helpful for the diagnosis of AD in the early stage.

Objective To develop a gas dynamic exposure device with a simple structure.Methods The device was composed of a water tank, an gas chest, an exposure kit and an gas-out bottle. The chest body was made of organic glass pane, drainage method was used to distribute the gas properly, and airflow was regulated with the gravity and valve.Results The device was proved to have simple structure and high effects.Conclusion The device has low cost, simple structure and properly distributed gas, and can be reused for exposure test.

This study is to explore new lead compounds by inhibition of Pin1 for anticancer therapy using temperature sensitive mutants. As Pin1 is conserved from yeast to human, we established a high-throughput screening method for Pin1 inhibitors, which employed yeast assay. This method led to the identification of one potent hits, 8-11. In vitro, 8-11 inhibited purified Pin1 enzyme activity with IC50 of (10.40 +/- 1.68) micromol x L(-1), induced G1 phase arrest and apoptosis, showed inhibitory effects on a series of cancer cell proliferation, reduced Cyclin D1 expression, was defined as reciprocally matched for protein-ligand complex in virtual docking analysis and reduced cell migration ability. In vivo, we could observe reduction of tumor volume after treatment with 8-11 in xenograft mice compared with vehicle DMSO treatment. Altogether, these results provide for the first time the involvement of 8-11 in the anticancer activity against Pin1.

In recent years, labor dispatch has become a new form of employment in medical institutions for final disinfection, cleaning, garbage recycling and other work. Concerning the ambiguity of responsibilities and obligations in regard to dispatching workers′ occupational health management, most of employers and labor dispatching agencies failed to protect the legal rights and interests of dispatching workers during working. This article discusses the case of occupational health management and supervision of labor dispatch for cleaning worker at a nuclear medicine workplace in a medical institution.