2.An Investigation of Air Fungi in the West of Luzhou City, China
Dan YAN ; Rui LI ; Yuhua ZHANG
Journal of Environment and Health 1992;0(04):-
Objective To investigate the sorts and quantities of air fungi in air and its change in every month in the west of Luzhou City. Methods The experiment glass slice was exposed every day and the experiment container was exposed every month in one year so as to investigate air fungi in Luzhou Library Building in the west of Luzhou City. The fungi were separated and cultured, the specimens of fungi were pressed on glass slice timely, dyed with methyl blue and identified. Results 365 experiment glass slices were exposed every day in one year. 24 139 fungi spores were checked and 23 582 were identified. They belonged to 24 species. The air fungi spores in the experiment glass slice according to their quantity were Alternaria(30.61%), Ustilaginales(23.90%), Epicoccum(18.71%), Hormodendrum(13.91%). The air fungi in the experiment container according to their quantity were Saccharomyces(50.20%), Aspergillus(12.46%), Penicillium(10.77%), Hormodendrum(9.29%) and so on. There were a lot of air fungi in the west Luzhou City all the year round. The air fungi quantity was high during May to September in a year. Conclusion A lot of fungi wave to and fro in air in the west of Luzhou City all the year round. The quantity of air fungi changes as the season goes on and it is high during May to September. The main fungi are Alternaria, Ustilaginales, Epicoccum, Hormaodendrum and so on.
3.Construction of performance evaluation system for scientific researchers in Peking University Cancer Hospital & Institute
Xuedong YAN ; Dan WANG ; Huanping ZHANG
Chinese Journal of Medical Science Research Management 2014;27(5):523-526
Through literature review,Delphi method and analytic hierarchy process,the construction and implementation of evaluation system on researchers' performance is in accordance with characteristics and practical requirements of Peking University Cancer Hospital & Institute,19 key indicators,which fall into 3 categories of work aptitude,work behavior,and work effectiveness,were set up as the basic structure,and upon wich the development and implementation of performance evaluation system is based and possible effects and results were discussed.
4. FTIR identification between Amomum villosum hybrid offspring and female parent
Chinese Traditional and Herbal Drugs 2011;42(5):996-999
Objective: To study the identification between the Amomum villosum hybrid offspring and the female parent by useing the Fourier transform infrared (FTIR) spectroscopy. Methods: Using the FTIR to determine the infrared spectra of A.villosum hybrid offspring and female parent. Switching and processing the atlas with derivative spectrometry and Fourier self-deconvolution, to contrast for the characteristic differences in absorbance of them. Results: There were no significant differences between the A. villosum hybrid offspring and female parent by using FTIR. But 1 051.014 cm-1 was found to be the most obvious in the fourth-derivative spectrum, 771.563 4 and 1 612.432 5 cm -1 to be the most obvious in the Fourier self-deconvolution spectra. Conclusion: There are obvious differences between the A. villosum hybrid offspring and female parent in the derivative spectrometry and Fourier self-deconvolution spectroscopy atlas. Therefore, this method can be used to identify the A.villosum hybrid offspring and female parent simply, rapidly, and accurately.
5.Quality Standard for Tiaolitongbao I Capsules
Xi LI ; Mei LIU ; Dan WU ; Yang ZHANG ; Yan ZHANG
China Pharmacist 2017;20(8):1474-1476
Objective: To establish the quality standard for Tiaolitongbao I capsules.Methods: The components including Astragalus , Atractylodes, Finger citron and Radix aucklandiae were identified by TLC.Emodin, the effective component of Polygonum cuspidatum , was determined by HPLC.Results: The characteristic spots in TLC were clear without any interference.The linear range of emodin was 4.25-68.00 μg·ml-1 (r =0.999 9).The average recovery was 95.22% ,and RSD was 1.47% (n =6).Conclusion: The methods used for the identification and quantification are sensitive, simple and accurate, which can be used for the quality control of Tiaolitongbao I capsules.
6.Attaching great importance to polypharmacy in elderly patients
Bo ZHANG ; Xuelian YAN ; Qiumei WANG ; Dan MEI
Chinese Journal of Geriatrics 2012;31(2):171-174
Based on the ongoing clinical experiences at our outpatient pharmacy and geriatrics multidisciplinary inpatient and outpatient services,we believe that polypharmacy among elderly patients is serious and pervasive in China.This observation is supported by the findings from literature review.To help address this serious issue in senior care,we recommend to gain better understanding of age-related physiological changes of the elderly as well as those in pharmacokinetics and pharmacodynamics,and to conduct prescription review and medication reconciliation.The multi-and interdisciplinary approach employed by modern geriatrics care model,involving doctors,pharmacists and nurses,should further help address this issue and promote rational use of pharmaceuticals in the elderly patients.
7.Analysis of Ultrasound and Pathology Images for Special Types of Breast Malignant Tumors
Yan MENG ; Dan ZHANG ; Yandong LI ; Jianyue MA ; Lin ZHAI
Chinese Journal of Medical Imaging 2015;(3):188-191
PurposeTo analyze the sonographic and the histological features of special types of breast malignant tumors in order to explore preoperative ultrasound diagnosis. Materials and Methods Seven cases of special types of breast malignant tumors confirmed by pathology were retrospectively investigated by ultrasound. The sonographic and histological features of the lesions were reviewed. The ultrasonogram manifestations of the breast anatomy and the lesions were observed and recorded.Results Among 7 cases, there were 2 cases of papillary carcinoma, 3 cases of mucinous carcinoma, and 2 cases of lymphoma. Microscopically, the papillary carcinoma had clear boundaries with infringing mesenchyme, and the tissues were papillary and dense. The mucinous carcinoma had cancer cells floated in mucus lake. The primary breast lymphoma was diffused large B-cell type with focal lesion. For sonography type of breast, there were 3 cases of fatty types, 1 case of fibroglandular-1 and 3 cases of fibroglandular-2. The papillary carcinoma was hypoechoic in 2 cases, one of them was expansive growth with large size. Two cases of mucinous carcinoma were hypoechoic without accompanying sound attenuation in 1 case and with accompanying acoustic shadow due to calcification in the other case. Lymphoma was apparent anechoic and cystoid.Conclusion Special types of breast malignancies have different sonographic features and histological features from the common invasive ductal carcinoma. It has high clinical significance to enhance the understanding of rare malignant breast tumors.
8.Studies on Dissolution Determing Method for YakepingⅡ Capsules
Pan QIN ; Zhenghua PAN ; Dan LUO ; Qizhe LI ; Yan ZHANG
China Pharmacist 2015;(1):58-62,63
Objective: To establish a dissolution determing method for the two primary ingredients atenolol and nifedipine in YakepingⅡcapsules. Methods:A small glass method was adopted with the rotation rate of 50 r·min-1 . According to the dissolution conditions in Japan “quality of medical drugs information set” with appropriate adjustments in accordance with the actual situation of the samples, different YakepingⅡ capsules were determined by HPLC respectively in pH 1. 2 artificial gastric solution ( containing 0. 5% sodium dodecyl sulfate), pH 4. 0 acetate buffer(containing 0. 5% sodium dodecyl sulfate), pH 6. 8 phosphate buffer(contai-ning 0. 25% sodium dodecyl sulfate) and water(containing 0. 25% sodium dodecyl sulfate). Results:The assay displayed a good lin-earity over the concentration range of 10-30 μg·ml-1 for atenolol and nifedipine(r=0. 999 6 and r=0. 999 8), and the recovery of the two components in the different medium was 99. 64%(RSD=0. 73%), 99. 55%(RSD=0. 65%), 99. 53%(RSD=0. 47%)and 99.54% (RSD=0.51%), 99.52%(RSD=0.67%), 99.52%(RSD=0.72%), 99.51%(RSD=0.63%)and 99.61%(RSD=0. 59%)(n=9). The dissolution of different batches of YakepingⅡcapsules in the four media showed the similar behavior. Conclu-sion:The method is simple, accurate and reproducible in the dissolution determination of atenolol and nifedipine in YakepingⅡ cap-sules.
9.Protective effect of physcione on acute liver injury in rats
Li-Yan ZHANG ; Wen-Hui SU ; Ying XIONG ; Dan WANG ;
Chinese Journal of Primary Medicine and Pharmacy 2006;0(12):-
Objective To investigate the protective effect of physcione on acute liver injury in rats.Methods Acute liver injury rat model was constructed with 2ml/kg CCl_4((?)3 d)via intragastric administration.The serum concentrations of alanine aminotransferase(ALT),aspartate aminotransferase(AST)and tumor necrosis factor (TNF)in different groups were detected.Hepatic histopathology of different groups was also observed to reflect the effect of physcione.Results The serum concentrations of ALT,AST and TNF in physcione group were significantly lower than those of model group(P
10.Determination of Stachydrine Hydrochloride in Different Preparations of Herba Leonuri
Qingmin ZHANG ; Yunhong ZHU ; Yan XIONG ; Xiaoying LUO ; Dan LIU ;
Chinese Traditional Patent Medicine 1992;0(06):-
Objective:To investigate the quality of Herba Leonuri Preparations sold in market. Methods: The alkaloid content in preparations was determined according to the determination method in China Pharmacopoeia (1995). Results: There were significant differences among Herba Leonuri Preparations from different pharmaceutical factories, place of origin and batches. Conclusions: It is suggested that the determination item of stachydrine hydrochloride be added.