1.Investigation of the stability of adriamycin liposome by TLC
Journal of Chongqing Medical University 2007;0(09):-
Objective:To investigate the usability of TLC as a evaluating method for adriamycin liposome stability by separating its composition and degradation products with TLC and improve this method. Methods:The plates were developed twice with four development systems,visualized by 4-methoxybenzaldehyde. Results:It was better to separate EPC,cholesterol and their degradation products by using chloroform-methanol-water-ammonia(65∶35∶2.5∶2.5) as the mobile phase. Conclusion:TLC could be used for the quality control of the adriamycin liposome due to its simple operation and high reproducibility.
2.Development of ECG Simulation Training System Based on PC
Chinese Medical Equipment Journal 1989;0(01):-
Objective To develop a kind of system of simulation and training on ECG for studying ,training and assessing of biomedical engineer. Methods The simulation training system was designed based on PC. In the hardware system, ADuC848 SCM was adopted as the primary controller, QuickStart exploration platform was used to develop firmware, and intelligent assessing system was explored by C++ Builder. Results Biomedical Engineer could be trained, checked and evaluated by the system. Conclusion The system, combining practice and examination, pays attention to basic skill training and thus improves studying efficiency.
3.Mammographic manifestations and pathologic study of fat necrosis of the breast
Chinese Journal of Radiology 2000;0(12):-
Objective To discuss mammographic findings and pathologic foundation of the fat necrosis of the breast and to improve the imaging diagnosis of the fat necrosis of the breast. Methods The mammographic findings of 91 cases with pathologically proved breast fat necrosis were retrospectively analyzed, of which 2 cases were bilateral breast fat necrosis, and a comparison with pathological results was made. Results The mammographic findings included (1)No abnomal mammographic findings (n=14, 15.4%);(2) Single and multiple lipid-cysts (n=6, 6.6%);(3) Masses (n=20, 22.0%), of which 1 case was bilateral breast mass;(4) Nodules (n=13, 14.3%);(5) Focal opacities like stars or pieces in the subcutaneous fat layer (n=28, 30.8%), of which 1 case was bilateral breast lesion;(6) Faint reticular opacity in the subcutaneous fat layer (n=5, 5.5%);(7) Structure distortion (n=5, 5.5%). The location of the liesions:(1) 55 lesions located in fat layer;(2) 13 lesions standed out to the fat layer or located the boundary of the fat layer and breast parenchyma. When routine mammography demonstrated the disease located the boundary of the fat layer and breast parenchyma, there will be helpful with tangent location mammography to show the disease in the subcutaneous fat layer;(3) 9 lesions located in the breast parenchyma;(4) 14 lesions did not find abnormity in the mammography. The pathologic appearance (1) A lipid cyst is the characteristic mammographic finding in the early stage of the lesion;(2) Asymmetry density masses or nodules in the subcutaneous fat layer is the characteristic mammographic finding in the metaphase stage of the lesion, which hinted necrotic fatty tissue gradually be replaced by fibrous tissue;(3) Focal opacities like stars and irregular reticulation findings in the subcutaneous fat layer or superficial layer adenoid tissues are the characteristic mammographic findings in the later stage of the lesion, which hinted that necrotic fatty tissue was licked up, circumference remained some fibrous tissue.The mammographic findings of the different pathological stages often appear in the same time. Conclusion The mammographic findings of fat necrosis of breast was different in its different stage. The mammography is very helpful for making the diagnosis of breast fat necrosis.
4.X-ray Diagnosis and Pathological Study of Ductal Carcinoma in Situ of Breast
Yumei ZHAO ; Peifang LIU ; Junyi ZHANG
Journal of Practical Radiology 2000;0(02):-
Objective To discuss the value of the mammography in the diagnosis of ductal carcinoma in situ (DCIS) and guidelines ofthe operation.Methods 107 pathologically proved DCIS were retrospectively reviewed.Results There were 62 microcacifications(57.9%),the range of microcacifications was varied , of them,13 were masses or local compact with microcacifications ; 17 were localized infiltration and bad structure (15.9%);20 were masses (18.7%) ;1 papillae enhancement (0.9%),7 were normal(6.5%).Conclusion Multiplicity microcacifications are the most frequently appearance of X-ray in DCIS;mammography could find the early microcarcinoma and the early carcinoma , especially the DCIS ; mammography could exactly reflect the multifocus , it is of value in confirming the range of the operation.
5.Determination of Phospholipid Content in 5-FUR Prodrug Liposome
Li ZHU ; Lijun PAN ; Chunmei HU ; Junyi ZHAO ; Chi WANG
China Pharmacy 2001;0(07):-
OBJECTIVE: To determine the concentration of phospholipid in 5-FUR prodrug liposome. METHODS: The sample was fragmented by ethanol and extracted by chloroform. The concentration of phospholipid in 5-FUR prodrug liposome was determined by ammonium ferrothiocyarate spectrophometry at a wavelength 488 nm. RESULTS: The linear range of phospholipid was 0.01~0.10 mg?mL-1(r=0.999 6, n=3) with an average recovery rate of 99.66% (RSD=3.17%). CONCLUSION: This method is simple, convenient and sensitive, and it can be used for the quality control of 5-FUR prodrug liposome.
6.Preparation and Stability of Tetrandrine Liposomes
Chunmei HU ; Li ZHU ; Junyi ZHAO ; Chi WANG ; Lijun PAN
China Pharmacy 2005;0(13):-
OBJECTIVE: To draw a comparison between the two preparative technologies of tetrandrine liposomes. METHODS: Tetrandrine liposomes were prepared with ammonium sulfate transmembrane gradient method and film dispersion method respectively. Leaking ratio,particle size,and content of phospholipid of liposomes were selected as the parameters to indicate the stability of liposomes,and the entrapment efficiency was taken as quality index to compare the two preparation technologies. RESULTS: Tetrandrine liposomes prepared with ammonium sulfate transmembrane gradient technology achieved high entrapment efficiency of 81.1% and good stability,while those prepared by film dispersion method had an entrapment efficiency of only 32.9% with poor stability. CONCLUSION: Ammonium sulfate transmembrane gradient method is feasible and superior to the film dispersion method in the preparation of tetrandrine liposome.
7.Observation on the effect of previous analgesia of acupuncture on the patients with the mixed hemorrhoid surgery pain
Wei LI ; Hua ZHAO ; Junyi WU ; Bei CHEN ; Shifen XU
International Journal of Traditional Chinese Medicine 2016;38(7):617-620
Objective To study the effects of previous analgesia of acupuncture on patients with the mixed hemorrhoid surgery pain.MethodsA total of 70 patients with mixed hemorrhoid treated with “Milligan-morgan hemorrhoids” were randomly divided into treatment group and control group, 35 patients in each group. The treatment group was treated 30 min prior to the surgery with needling and manipulating Baliao, Chengshan, Hegu every five minutes until the operation, while the control group was not treated before the operation. The patients were assessed by Visual Aualogue Scale and self-reporting Inventory.ResultsAfter the operation, the treatment group was significantly better than the control group in the outcome index of beginning time of pain (14.3 ± 4.9 hvs. 4.2 ± 2.3 h, Z=-5.666,P<0.01) and peak time of pain (17.3 ± 4.5 hvs. 6.0 ± 2.9 h,Z=-5.581,P<0.01). The treatment group was significantly better than the control group in decreasing the pain beginning VAS score (3.3 ± 1.7vs. 4.6 ± 1.7,Z=-2.820, P<0.01) and pain peak VAS score (4.5 ± 2.0vs. 6.5 ± 1.2,Z=-4.025,P<0.05). After surgery, the treatment group was significantly better than the control group in decreasing the score of Self-reporting Inventory scale at the 1stday (1.8 ± 1.3vs. 3.0 ± 1.3),Z=-3.472,P<0.01) and 2ndday (1.2 ± 0.9vs. 1.9 ± 1.2,Z=-2.464,P<0.05). And the treatment group was significantly better than the control group inreducing the quantities of compound aminopyrine phenacetin tablet (0.5 ± 0.9vs.1.5 ± 1.7,t=3.167,P=0.002).ConclusionAcupuncture analgesia 30 minutes prior to the mixed hemorrhoid surgery can significantly reduce the postoperative pain.
9.Study on training scheme for adult with pharmacy the diploma of junior college trying to obtain the undergraduate diploma education
Minjie GUO ; Guoying ZHAO ; Yanqing HUANG ; Junyi LIU
Chinese Journal of Medical Science Research Management 2011;24(4):252-253,279
To improve the pharmaceutical care ability of adult students,and ensure the safety in clinical medication. According to the requirement of the Ministry of Education of China, the new training scheme for adult Pharmaceutical undergraduates were drawn up by research and practice to meet the development needs of market economy and licensed pharmacist system in China.
10.Analysis of Credibility and Validity of Chinese Medical Constitution Questionnaire in Risk Evaluation of Postoperative Nausea and Vomiting Patients
Yu GONG ; Ying ZHAO ; Qiujin WENG ; Junyi ZHENG
Journal of Guangzhou University of Traditional Chinese Medicine 2017;34(2):285-289
Objective To preliminarily analyze the credibility and validity of Chinese Medical Constitution Questionnaire(CMCQ).Methods CMCQ was used to investigate the distribution of Chinese medical constitution types of 450 women inpatients with postoperative nausea and vomiting (PONV) after gynecologic laparoscopic surgery from March to October of 2013.Credibility and validity were analyzed by Cronbach's α coefficient and factor analysis.Results Mixed constitution was identified in 184 (40.9%) patients.Cronbach's α coefficient of two dimensions (yang deficiency and qi stagnation) of CMCQ was proper,being 0.815 and 0.803 respectirely,while that of the dimension of harmony type was the lowest (0.514).The total variance explained by 9 common factors extracted from the results of factor analysis was only 48.5%.Conclusion CMCQ may need further revision based on the results of clinical application.