1.The relationship of Epstein-Barr virus infection and expression of p16 protein in classic Hodgkin's lymphoma
Journal of Chinese Physician 2012;14(3):332-335
Objective To study the relationship between EBV infection of classic Hodgkin's lyphoma and expression of p16 protein.Methods EBER-1 and p16 protein expression in 80 cases of CHL were studied with EBER-1 oligonucleotide probe and immunohistochemistry respectively.Results 80 cases of CHL were enrolled in this study,including male 52 cases,28 cases of female,male to female ratio of 1.86 ∶ 1.The positive rate of EBER-1 in female was 39.29% and in male was 63.46%,which have statistically significant difference (x2 =4.298,P =0.038).The positive rate of EBER-1 in children and the older was significantly higher than that in adult (x2 =20.13,P =0.000).EBER-1 positive expression located in the R-S nuclei which positive expression rate was 55.00%,including mixed cell type (MC) 71.79%,lymphocyte depletion type (LD) 42.85%.lymphocyte predominance (LP) 47.06% and nodular sclerosis type (NS) 29.41%.MG type was significantly higher than NS ( x2 =8.787,P =0.003 ) ; p16 was noted in thc nucleus and cytoplasm.The total positive expression rate was 45%,and subtype positive rates were 47.05% (LP),48.71% ( MC),35.29% (NS) and 42.85% (LD).There was a negative correlation between p16 protein and EBER-1 ( r =-0.242,P < 0.05 ).Conclusions CHL may be related to EBV latent infection and it can be considered as potential markers to identify HRS cells in diagnosis.
2.Study on the Quality Method Control of Jiufen Spray
China Pharmacy 1991;0(01):-
OBJECTIVE:To establish the quality method control of Jiufen spray,a percutaneous administration preparatio_n.METHODS:To determine the contents with TLCs method.The thin-layer plate was made of silica gel GF254. The spread out agent was chloroform-methanol-ammonia solution(4mol/L)(2∶6∶1). Dual wavelength scanning:strychnine and brucine:?s=254nm,?r=325nm;ephedrine:?s=500nm,?r=440nm.RESULTS:The within-day recoveries of strychnine,brucine and ephedrine were 99.048?2.388,99.532?0.958 and 99.504?0.555;the between-day recoveries were 98.796?1.058,99.58?0.476 and 99.42?0.838;the contents were(1.474?0.047)%,(1.372?0.052)%and(1.506?0.064)%(n=4) respectively.CONCLUSION:This method is stable and reliable and can be used for determination of the contents of this preparation.
3.Diffuse hyperpigmentation with guttate depigmentation macules: clinical analysis of 10 cases
Yingxue HUANG ; Yiqun JIANG ; Jianfang SUN
Chinese Journal of Dermatology 2014;47(9):667-668
Objective To assess the clinical feature and diagnosis of diffuse hyperpigmentation with guttate depigmentation macules.Methods A retrospective study was carried out among 10 patients with diffuse hyperpigmentation with guttate depigmentation macules collected at the Institute of Dermatology,Chinese Academy of Medical Sciences and Peking Union Medical College from 2005 to 2012.The clinical manifestations,pathological findings and disease outcomes in these patients were analyzed.Results Of the 10 patients,6 were male,and 4 were female.The median age at onset was 7 years (range,4-25),and there were only 3 adult patients among these patients.None of the patients had a family history of pigmentary disturbance.Typical clinical manifestations included densely distributed,guttate hypopigmented macules arising on diffuse and uniform hyperpigmentation.Lesions could slowly spread over the body surface without the trend towards spontaneous regression.Pathologically,there was a slight increase in pigmentation of the epidermal basal layer,as well as melanins and melanophages scattered around blood vessels in the superficial dermis,with or without focal vacuolar degeneration of the basal cell layer.Conclusions Diffuse hyperpigmentation with guttate depigmentation macules,a rare pigmentary disturbance that clinically manifests as both hyperpigmentation and hypopigmentation and is pathologically characterized by postinflammatory hyperpigmentation,often affects children.Once the lesions occur,there is no trend towards regression.No effective treatment is available for this entity at present.
4.Assessment on quality of examination paper from 2005 to 2010 in a medical university
Hongyan WU ; Yiqun CHENG ; Yehuan SUN
Chinese Journal of Medical Education Research 2013;(2):213-216
Objective To assess the quality of examination paper,level of examination paper proposition,teachers' teaching quality and teaching effect by sampling inspection of examination paper.Methods Examination papers of 85 courses were quantitatively assessed by using evaluation form of Examination Paper Quality of Anhui Medical University.Results Propositions of papers were well or largely complied with the requirements of syllabus.2.4% of examination papers had content errors.Students' scores of 91.6% papers were in normal distribution.Quality of papers was improved year by year,but was significantly different among public basic courses,specialized basic courses and specialized courses(x2 =8.865,P =0.042).The qualitative analysis results showed that there were shortcomings in proposition,grading,paper analysis and archiving.Conclusions Management of examination paper is needed to improve the quality of teaching and studying and pave the way for the undergraduate teaching evaluation.
5.Determination of the Content and Dissolution Rate of Trace Elements in Antivirus Formula and Its Extract
Yiqun SUN ; Hongmei TANG ; Xiaomei DENG
Traditional Chinese Drug Research & Clinical Pharmacology 2000;0(06):-
0.05). Conclusion The extract technology is basically reasonable,and need further improvement.
6.Screening of the Receiving Solution in Transdermal Absorption of Jiufen Spray
Yiqun SUN ; Liling ZHOU ; Xiaoyi CHEN
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(01):-
Objective: To screen the receiving solution used to study the transdermal absorption of strychnine in Jiufen spray. Methods: With recovery,Q-T equation and transdermal speed constant as the parameters, the improved Franz-cell and the skin of SD rats were used to screen the receiving solution from saline, saline-alcohol (7∶3,v∶v), pH phosphate buffer solution-alcohol (88∶2,v∶v), pH 7.4 phosphate buffer containing 25% alcohol. Results: The comparison of the inter-day and intra-day recoveries,Q-T equation and transdermal speed constant showed that saline-alcohol(7∶3) was the best for the study. Conclusion: It is indicated that saline-alcohol(7∶3) was the best receiving solution for the transdermal absorption study of Jiufen spray.
7.Determination of Thiamazole Content in Yingqi Ling Tablets by HPLC
Yiqun SUN ; Yuechun HUANG ; Hongmei TANG
Journal of Guangzhou University of Traditional Chinese Medicine 2001;0(01):-
[Objective] To develop a method for the determination of thiamazole content in Yingqi Ling Tablets. [Methods] High performance liquid chromatography (HPLC) was used. The chromatographic conditions were: C18 Gravity Column (4.6mm ? 250mm), methanol - water (10:90 ) as mobile phase, flow rate being 1.0mL/min and the detection wavelength at 258nm. [Results] The calibration curve was linear in the range of 0.16 - 0.64?g. The average recovery was 101.01% (relative standard deviation sr = 2.21%). Relative standard deviation of precision test was 1.04% and the content of the sample was 0.4841 mg per tablet (sR = 0.78%). [ Conclusion] HPLC is effective for the determination of thiamazole content in Yingqi Ling Tablets.
8.Screening of prescriptions of JIUFEN SPRAY by transdermal experiments
Yiqun SUN ; Liling ZHOU ; Yuechun HUANG ;
Chinese Traditional and Herbal Drugs 1994;0(03):-
Object To screen the prescriptions of JIUFEN SPRAY Methods Four prescriptions were primarily obtained from 19 prescriptions of JIUFEN SPRAY on the basis of their stability and spraying effect, then the obtained four prescriptions were screened further according to transdermal rate of them Results Prescription 17th was considered to be the best as its high stability, spraying effect and transdermal rate Conclusion The optimal prescription of JIUFEN SPRAY consisted of 20% alcohol solution of sample, 3% borneol and 5% glycerine
9.Study on the transdermal releasing rule of the preparation of Jiufen Spray
Yiqun SUN ; Liling ZHOU ; Xiaoyin CHEN ;
Chinese Traditional Patent Medicine 1992;0(07):-
Objective: To study the transdermal releasing rule of the preparation of Jiufen Spray.Methods: Improved Franz diffuser was applied to transdermal experiment with TLC scanning method.Results: Q T (quantum time) equations of Jiufen Spray are strychnine:Q=220.941t- 486.006 , brucine:Q=208.146t-454.629, ephedrine:Q=177.691t-247.826. The study on releasing rule suggests the accumulative amount of transdermal drug increases with time, but the releasing speed is roughly stable, the total releasing ratio of 12 hours is about 50%. Conclusion: Jiufen spray could surmise to maintain relatively stable plasma drug concentration.
10.Analysis on results of four kinds of method in susceptibility testing of tigecycline against Acinetobacter baumannii
Peihong YANG ; Xiuli XU ; Jiayun LIU ; Yiqun SUN
International Journal of Laboratory Medicine 2017;38(9):1198-1200
Objective To compare the sensitivity of four kinds of drug susceptibility test method in detecting sensitivity of tigecycline against Acinetobacter baumannii.Methods The susceptibility of 72 clinically isolated strains of carbapenemase-resistant Acinetobacter baumannii(CRAB) to tigecycline in vitro was detected with disk diffusion method,VITEK 2 Compact system,E-test and MIC test strip(MTS) test strip respectively,according to FDA standards,and the differences of four kinds of drug susceptibility test methods were compared.Results The susceptibility rates of 72 strains of CRAB to tigecycline by disk diffusion method,VITEK 2 Compact system,E-test and MIC test strip were 50.00%,69.44%,36.11% and 98.61% respectively,the intermediate rates were 48.61%,29.17%,26.39% and 1.39% respectively,the resistant rates were 1.39%,1.39%,37.50% and 0.00% respectively.Compared with MTS,the classification consistency rates of E-test,disk diffusion method and VITEK 2 Compact system were 36.11%,51.39% and 70.83% respectively.Conclusion There is difference among four kinds of method for conducting the drug susceptibility testing of tigecycline against CRAB,the consistency of disk diffusion method,VITEK 2 Compact system and E-test is lower.Detecting mediation or drug resistant strains of CRAB by disk diffusion method,VITEK 2 Compact system and E-test needs to be verified by MTS or Broth dilution method.