1.The dissolution test for dermal applied preparations of aciclovir in vitro
Yun CHEN ; Feng SHAO ; Chongpu ZHANG
Chinese Pharmaceutical Journal 1998;(4):237-
OBJECTIVE: To study the dissolution amounts of aciclovir (ACV) from differently based preparations and provide the evidence for the development of new preparation of ACV. METHOD: The dissolution tester was applied for the quantitative determination of ACV released from 3 based formulations and 5 concentrations samples. The release amount per unit area (M) and the accumulative release percentage (Q) were compared respectively. RESULTS: The value for M was raised with the increase of the concentration of aciclovir in preparations, and for Q was reduced. The release rates of the aciclovir gel were at least two times faster than the creams and the ointment. CONCLUSION: The drug dissolution from ACV gel was better than the creams and the ointment. 10 gkg-1 ACV in prearation was the suitable concentration.
2.Screening of Effective Antioxidant in Tretinion Ointment
Feng SHAO ; Yun CHEN ; Chongpu ZHANG
China Pharmacy 2001;0(12):-
OBJECTIVE:To screen the effective antioxidant in tretinion ointment METHODS:The six tretinion ointments were prepared with different antioxidants and the same base Based on the accelerated test design,the tretinion concentration was determined by HPLC RESULTS:The ointment with the antioxidant D exhibited the least oxidation rate CONCLUSION:Data from accelerated test demonstrated that the compound antioxidant D was the best one in this formula
3.Aetiological Analysis of Chronic Obstructive Pulmonary Disease Complicated with Ventilator-associated Pneumonia
Li-yun, CHEN ; Min, LI ; Shao-guang, HUANG
Journal of Shanghai Jiaotong University(Medical Science) 2001;21(2):155-157
Objective To analyze the aetiological characteristics and bacterial susceptibility in chronic obstructive pulmonary disease (COPD) complicated with ventilator-associated pneumonia (VAP) after mechanical ventilation. Methods To review the clinical characteristics, aetiological flora and bacterial susceptibility in 28 patients complicated with VAP in the ICU in recent years. Results The incidence rate of VAP was 66.7%. 91 clinical bacteria and 10 mycete isolates were collected, 64 (80.3%) were Gram-negative bacteria (GNB) and 27(29.7%) Gram- positive bacteria (GPC). The dominant bacteria was Xanthomonas maltophilia in COPD complicated VAP. Conclusion The main kind of bacteria in COPD complicated VAP after mechanical ventilation was GNB, and all kinds of the bacteria showed high tolerance. More attention should be paid to the cultivate aetiological bacteria and bacterial susceptibility and select the most suitable antibiotics in the treatment of VAP.
4.Preparation of rhubarb lactobacillin dispersible tablets
Hanlin XU ; Jizheng SHAO ; Jun CHEN ; Yun SUN ; Chizhi ZHANG
China Journal of Traditional Chinese Medicine and Pharmacy 2005;0(01):-
Objective: To obtain the optimum prescription of the rhubarb lactobacillin dispersible tablets.Methods: The kind and amount of the excipient were investigated by using the disintegrating time to establish the optimum prescription and preparation process.Results: The tablets were prepared by compressing moist granulation with the PVPP and CMS-Na as the disintegrant,MCC as diluent,sodium alginate as sweller,magnesium stearate as lubricant and 80% alcohol as adhesive agent.The preparation complied with the requirement of Pharmacopeia of the People's Republic of China(2005edition).Conclusion: This prescription of the tablet is reasonable and the preparation process is feasible.
5.High Efficiency Expression of the Gene From Herpes Simplex Virus Type 1(HSV-1)Glycoprotein D
Jun-Bo YI ; Ming-Jun LEI ; Shao-Juan CHEN ; DE-XIN ; Ling-Yun LI ;
China Biotechnology 2006;0(05):-
Objective:To obtain the high expression of Herpes Simplex Virus Type 1(HSV-1)Glycoprotein D gene. Methods:The Herpes Simplex Virus Type 1(HSV-1)Glycoprotein D(gD1) gene fragment containing dominant antigen epitopes confirmed by computer analysis was cloned by PCR technical and inserted into plasmid vector pTrxA. Then the recombinant plasmid was transformed into Rosetta. The expressed product was analyze by SDS-PAGE. Results:930 bp gene fragment was amplified by PCR as anticipated. Nucleotide sequencing showed a 100 % homology with that of the published sequence in GenBank. The molecular weight of the expressed protein was about 48kDa, Western blotting indicated that the antigenicity of the protein was good. Conclusion:The plasmid pTrxA-gd1 was constructed and a high efficiency expression of the gd1 gene from Herpes Simplex Virus Type 1(HSV-1)strain was made. The expressed product shows a good antigenicity.
6.Expression and prognostic significance of CgA and SYN in patients with non-small cell lung cancer
yun, DAI ; bao-hui, HAN ; jie, SHEN ; wei-zhong, HE ; jing-chen, SHAO
Journal of Shanghai Jiaotong University(Medical Science) 2006;0(09):-
Objective To study the expression and prognostic significance of neuroendocrine differentiation markers chromogranin A(CgA)and synaptophysin(SYN) in patients with resectable non-small cell lung cancer(NSCLC).Methods From January 2000 to January 2003,123 patients with NSCLC who received operations were investigated.The resected specimens and clinical data were collected.Immunohistochemical Elivison method was used to detecte the expression of CgA and SYN.Kaplan-Meier survival curve and Cox proportional hazard model multivariate analysis were applied for the prognostic factors. Results The positive expression rates of CgA and SYN were 22%,17.9%,respectively.The expression of SYN was associated with histological differentiation(P=0.001).No significant association was found between NSCLC with neuroendocrine differentiation(NSCLC-ND) and sex,age,smoke index,TNM Stage and pathology classification.No evidence showed the patients with positive expression of CgA or SYN could be tolerant with more cycles of chemotherapy(P=0.406).Kaplan-Meier survival curve indicated the survival had a relation with the expression of CgA and SYN.It was revealed by Cox analysis that SYN(P=0.001),TNM stage(P=0.02)and the maximal diameter of tumor(P=0.049) were independent prognostic factors. Conclusion The patients with NSCLC-ND had a poorer prognosis.SYN may be one of the prognostic factors in patients with NSCLC.
7.Surveillance of Schistosomiasis in Yongsheng county of Lijiang city, Yunnan from 2002 to 2010
Hai, LIU ; Peng-xia, XIAO ; Li-yang, MA ; Shao-yun, CHEN
Chinese Journal of Endemiology 2012;31(6):650-652
Objective To learn the effects of control measures,the screening situation and the epidemic situation of Schistosomiasis in Yongsheng county of Lijiang city of Yunnan province,and to provide a scientific basis for developing control strategies.Methods Annual surveillance data of Schistosomiasis of Yongsheng county from 2002 to 2010 were collected and analyzed by material retrospective method.Schistosomiasis screening situation,infection rate of people and cattle as well as snails area was statistically analyzed.Infection rate of people was from the screening results by indirect hemagglutination(IHA),and pathogenic examination of the positives(1 ∶ 10)was carried out through collection of eggs with nylon bag and hatching the stool.Infection rate of cattle was from etiology examination results by plastic cup pipe jacking method.Results From 2002 to 2010,257679 individuals were screened and 26540 cases (10.30%) were seropositive; with stool examination,451 (1.72%) were identified positive of 26233 persons; 603 (0.71%) were found positive of 85658 oxen.All of the positive detection rate of IHA method,the feces-positive detection rate in the population and the prevalence rate of oxen showed a declining trend(x2 =3615.53,785.68,434.50,all P< 0.05).The snails area was gradually reduced,the rate of snails environmental area was decline from 23.82% in 2004 to 1.98% in 2010.Conclusions The endemic situation of Schistosomiasis in Yongsheng county is controlled in the past eight years,but remains epidemic,and we will continue to strengthen monitoring,in order to achieve the goal of blocking the spread of Schistosomiasis.
8.An Automatic Reporting and Supervision System of Infectious Disease in Military Hospitals
Xinjian LIU ; Dinghua SHEN ; Yun SHAO ; Congxin CHEN ; Jie ZHU ; Ying WANG
Chinese Journal of Nosocomiology 2006;0(03):-
OBJECTIVE To realize the timeliness of the mobile phone and network during the application of the infectious disease reporting and supervision,and the preciseness of the infectious disease forecast,thus build the automatic reporting and supervision system of the infectious disease in hospital with the military and local features.METHODS Using the existing iatrical data and computer resources with telecommunication wide band network and the special mobile phone resources to construct the reporting and supervision system of the epidemic situation.Adopting B/S framework,the downstage supporter adopted the comprehensive technology with Net,J2EE,and Java,the backstage supporter adopted the large scale database of Oracle,using software and NTFS with code technology to make epidemic situation reporting and supervise the network.RESULTS This system might realize the most important function of the infectious disease with timely reporting,precise filling,automatic alarming,dynamic supervision and automatic statistical calculation.CONCLUSIONS This system may provide the important practical value for the epidemic situation reporting and supervision and the abrupt public medical accidents forecast.
9.Effect of Ulinastatin on Platelet Parameters in Elderly Patients with Moderately Severe and Severe Acute Pancreatitis
Guosheng CHEN ; Qiping XUE ; Haichen XU ; Wei XU ; Yun SHAO ; Weihao SUN
Chinese Journal of Gastroenterology 2014;(11):678-681
BacKground:The deveIopment of acute pancreatitis( AP ) is often accompanied by pancreatic microcircuIation disturbance and aIterations in bIood coaguIation and fibrinoIytic systems, which resuIts in abnormaIities of pIateIet parameters. Aims:To investigate the changes of pIateIet parameters in eIderIy AP patients and the effect of uIinastatin ( UTI)on pIateIet parameters and disease status. Methods:Two hundred and seventeen eIderIy AP patients(≥60 years) were enroIIed retrospectiveIy from Aug. 2009 to Dec. 2013 at the First AffiIiated HospitaI of Nanjing MedicaI University. According to the severity of the disease,patients were divided into three groups:miId AP( MAP),moderateIy severe AP ( MSAP),and severe AP( SAP). The pIateIet parameters,incIuding PLT,MPV and PDW before and after treatment,as weII as the differences in pIateIet parameters and cIinicaI efficacy between conventionaI therapy and UTI therapy were compared and anaIyzed. Results:In MSAP and SAP groups,PLT at admission was significantIy Iower(P<0. 01),whiIe MPV and PDW were significantIy higher(P<0. 05)than those in MAP group. After 1-week treatment,PLT increased significantIy(P<0. 01)and MPV and PDW decreased significantIy(P<0. 05)in MSAP and SAP groups. UTI therapy was superior to conventionaI therapy in increasing PLT( P <0. 01 ),decreasing MPV and PDW( P <0. 01 ),and improving the overaII efficacy in MSAP and SAP groups( MSAP:92. 3% vs. 81. 2%,P <0. 01;SAP:90. 0% vs. 80. 8%,P<0. 01). Conclusions:Changes of pIateIet parameters in eIderIy MSAP and SAP patients are different from those in MAP patients,which might refIect the disease severity. UTI is effective in reducing the activity of pIateIet and can be used in the treatment and prevention of disease progression in eIderIy AP patients.
10.Gated Myocardial Perfusion Imaging Quantitative Analysis Technique in Evaluation of Left Ventricular Remodeling and Its Effect on Cardiac Function After Myocardial Infarction
Jianfeng WANG ; Yuetao WANG ; Rong NIU ; Xiaoliang SHAO ; Yun ZHANG ; Hailong CHEN ; Yi CHU ; Peiqi LU
Chinese Journal of Medical Imaging 2014;(10):749-753
Purpose To investigate the clinical value of gated myocardial perfusion imaging (GMPI) quantitative analysis technique in evaluating left ventricular remodeling and its effects on left ventricular function in patients with myocardial infarction (MI). Materials and Methods Seventy-six cases of MI patients were retrospectively analyzed, including pure left anterior descending artery (LAD) disease in 21 cases , left circumlfex artery (LCX) or right coronary branch (RCA) disease in 23 patients and multivessel disease in 32 cases. Seventy-four healthy people were additionally selected as control group. GMPI was performed on all subjects. Reconstruction images were automatically analyzed by using cardiac software QGS 2009 to obtain left ventricular remodeling index, including diastolic sphericity index (SIED) and end-systolic sphericity index (SIES). Cardiac function parameters were also obtained, including left ventricular end-diastolic volume (EDV), end-systolic volume (ESV), left ventricular ejection fraction (LVEF), and peak iflling rate (PFR). Differences of the left ventricular remodeling index and cardiac function parameters between the MI group and the control group were compared to analyze the relationship between left ventricular remodeling after myocardial infarction and coronary artery lesions. Results SIED, SIES and EDV, ESV in MI group were signiifcantly higher than those in the normal group (P<0.01). The cardiac function parameters of LVEF and PFR were significantly lower than those of the normal group (P<0.01). SIED and SIES in the group of LAD lesions and multi-vessel disease were signiifcantly higher than those in the LCX/RCA lesion group (P<0.05). The left ventricular remodeling was occurred more often in LAD lesion group and multi-vessel disease group than in the LCX/RCA lesion group (χ2=6.502 and 10.166, P<0.05). There was no significant difference between the LAD lesions group and multi-vessel disease group (χ2=0.105, P>0.05). Linear regression analysis showed that LVEF and PFR in group of left ventricular remodeling was signiifcantly lower with the increase of SIED (F=43.231 and 15.642, P<0.01). SIED and SIES analysis resulted in high correlation for both intra-observer and inter-observer (r=0.881-0.926, P<0.01). Conclusion Left ventricular remodeling after myocardial infarction can be accurately evaluated by GMPI. Patients with myocardial infarction due to LAD or multi-vessel coronary artery diseases may have left ventricular remodeling easier and more severe. Left ventricular remodeling will seriously affect the myocardial contraction and diastolic function, resulting in the entire left ventricular dysfunction.