2.Flow Cytometry Detection of Platelet Associated Antibody in Patients with Idiopathic Thrombocytopenic Pupura
Beiqian WU ; Ping ZHU ; Qiang NIU ; Zi CHEN ; Yi XIE
Journal of Medical Research 2006;0(11):-
Objective To set up a method of detecting platelet associated antibody(PA Ig) by flow cytometry(FCM),and to investigate the value of FCM method in the diagnosis of idiopathic thrombocytopenic purpura(ITP).Methods We detected the platelet associated antibody of 20 healthy donors and 10 patients with ITP.These samples were also measured with ELISA.The results of FCM were compared with the results of ELISA.Results By FCM,the measured value of PA IgG,PA IgA and PA IgM,from 20 normal dornors,were 2.56?2.08%、13.75?5.98% and 13.90?7.28%,respectively.In patients with ITP,PA IgG,PA IgA and PA IgM were 28.13?17.74%、25.07?16.84% and 23.22?17.85%.Conclusion FCM can be a rapid,sensitive and new method in detecting platelet autoantibody,and has better potential than ELISA.
3.Protection effect of lactobacillus with selenium enrichment on growth and lymphocyte transformation of rats with liver injuries.
Yi-Yung SUN ; Long CHEN ; Ying-Zi JIANG
Chinese Journal of Applied Physiology 2003;19(4):366-397
Animals
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Female
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Lactobacillus
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Liver
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pathology
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Lymphocyte Activation
;
drug effects
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Lymphocytes
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cytology
;
drug effects
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Male
;
Rats
;
Rats, Sprague-Dawley
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Selenium
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pharmacology
4.Relation between drug release and the drug status within curcumin-loaded microsphere.
De CHEN ; Yi LIU ; Kai-yan FAN ; Yi-qiao XIE ; An-an YU ; Zi-hua XIA ; Fan YANG
Acta Pharmaceutica Sinica 2016;51(1):140-146
To study the relation between drug release and the drug status within curcumin-loaded microsphere, SPG (shirasu porous glass) membrane emulsification was used to prepare the curcumin-PLGA (polylactic-co-glycolic acid) microspheres with three levels of drug loading respectively, and the in vitro release was studied with high-performance liquid chromatography (HPLC). The morphology of microspheres was observed with scanning electron microscopy (SEM), and the drug status was studied with X-ray diffraction (XRD), differential scanning calorimetry (DSC) and infrared analysis (IR). The drug loading of microspheres was (5.85 ± 0.21)%, (11.71 ± 0.39)%, (15.41 ± 0.40)%, respectively. No chemical connection was found between curcumin and PLGA. According to the results of XRD, curcumin dispersed in PLGA as amorphous form within the microspheres of the lowest drug loading, while (2.12 ± 0.64)% and (5.66 ± 0.07)% curcumin crystals was detected in the other two kinds of microspheres, respectively, indicating that the drug status was different within three kinds of microspheres. In the data analysis, we found that PLGA had a limited capacity of dissolving curcumin. When the drug loading exceeded the limit, the excess curcumin would exist in the form of crystals in microspheres independently. Meanwhile, this factor contributes to the difference in drug release behavior of the three groups of microspheres.
Calorimetry, Differential Scanning
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Curcumin
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chemistry
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Drug Liberation
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Lactic Acid
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Microscopy, Electron, Scanning
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Microspheres
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Polyglycolic Acid
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X-Ray Diffraction
5.Analysis of 59 Anaphylactic Death Cases.
Zheng-dong LI ; Wing-guo LIU ; Zi-qin ZHAO ; Yi-wen SHEN ; Yi-jiu CHEN
Journal of Forensic Medicine 2015;31(3):206-210
OBJECTIVE:
To analyze the cases of anaphylactic death cases and explore the standards of judicial expertise of anaphylactic death for providing evidence for judicial expertise.
METHODS:
Fifty-nine cases death due to allergic reaction in Shanghai were collected. And details of medical history, clinical manifestation of anaphylactic reaction and postmortem examination findings were reviewed for all cases.
RESULTS:
In the 59 cases, there were 58 cases died from drug allergy, including 77.6% of them were antibiotics. The rates of treating in standard hospital and illegal clinic were 37.3% and 61.0%, respectively. The allergic symptoms were dyspnea and facial cyanosis. The time from contacting allergens to death ranged from 1 min to 3 d. The concentration of total serum IgE ranged from 50 to 576.92 IU/mL. The results of clinical manifestation and pathological anatomy had obviously changes.
CONCLUSION
Based on the exclusion of all other cause of death and synthetically analysis of details of cases, medical history, clinical manifestation and anatomy, the conclusion of anaphylactic death can reached. The details of cases including clinical history, exposure to allergens, and clinical manifestation play an important role in diagnosis of anaphylactic death.
Anaphylaxis/mortality*
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Anti-Bacterial Agents/adverse effects*
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Autopsy
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China
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Drug Hypersensitivity/mortality*
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Forensic Sciences
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Humans
6.Not Available.
Jian yi CHEN ; Fang HUANG ; Zi hao LIU ; Qing SHI ; Yi wu ZHOU
Journal of Forensic Medicine 2022;38(4):557-559
7.The effective parts of liangxue tongyu prescription on cooling-blood and activating-blood and analysis of chemical constituents by HPLC-MS and GC-MS.
Xi HUANG ; Guo-chun LI ; Lian YIN ; Zi-han ZHANG ; Yi-xin LIANG ; Hai-bo CHEN
Acta Pharmaceutica Sinica 2015;50(1):86-93
In order to clarify material basis of effective parts of liangxue tongyu prescription, blood-heat and blood-stasis rat model induced by dry yeast was established. The changes of rectal temperature, blood viscosity and plasma viscosity were used to evaluate the cooling-blood and activating-blood effects of liangxue tongyu prescription and its parts. Compared with the model group, the extract from liangxue tongyu prescription, its volatile oil and n-butanol part could significantly reduce rectal temperature (P<0.01), and also reduce blood viscosity and plasma viscosity to various degrees (P<0.01 or P<0.05). So volatile oil and n-butanol part were primarily identified as effective parts of liangxue tongyu prescription. By using GC-MS with normalization method of area to analyze volatile oil of liangxue tongyu prescription, 70 compounds were identified, accounting for about 92.54%, mainly as β-asarone, paeonol, α-asarone and shyobunone. 42 compounds such as peony glycosides, tannins, and iridoid glycosides were identified by HPLC-MS techniques and standard comparison. The study determined the effective parts of liangxue tongyu prescription and clarified the chemical composition providing the foundation for further studies on material basis of liangxue tongyu prescription.
Acetophenones
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chemistry
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Animals
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Anisoles
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chemistry
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Chromatography, High Pressure Liquid
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Drugs, Chinese Herbal
;
chemistry
;
Gas Chromatography-Mass Spectrometry
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Oils, Volatile
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chemistry
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Rats
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Tannins
;
chemistry
8.Effects of inhaled glucocorticoids on bone metabolism of children with asthma
sha, LI ; yi, ZHANG ; you-ping, TAN ; qiu-xiong, LIN ; zi-li, CHEN
Journal of Applied Clinical Pediatrics 1992;0(06):-
0.05).Conclusion There are no significant effects on bone metabolism and growth of children with small dose of IGs per day for a longer time.
9.Studies on Diterpenoid Alkaloids in Aconitum Transsectum
Limei ZHANG ; Xuewei YI ; Guiqiong LI ; Shuhui ZI ; Yanping CHEN ; Yong SHEN
China Pharmacist 2016;19(2):222-225
Objective:To study the chemical constituents in the roots of Aconitum transsectum. Methods:The compounds were i-solated and purified by column chromatography on the columns of silica gel, Al2 O3 and Sephadex LH-20, and their structures were elu-cidated on the basis of spectroscopic evidence ( MS and NMR) . Results:Totally 12 compounds were isolated from A. transsectum, and characterized as yunaconitine (1), indaconitine (2), crassialine A (3), 8-deacetylyunaconitine (4), talatisamine (5), chasma-conitine (6), 14-acetyltalatisamine (7), vilmoraconitine (8), sachaconitine (9), 14-acetylsachaconitine (10), acoforestinine (11) and vilmorrianine C (12). Conclusion:Compounds 8-11 are obtained from A. transsectum for the first time.
10.Therapeutic effect and safety of vincamine in anterior non -arteritic ischemic optic neuropathy
Chao-Qun, LIANG ; Chang-Zheng, CHEN ; Yu, SU ; Zuo-Hui-Zi, YI
International Eye Science 2017;17(10):1845-1848
AIM: To observe the clinical efficacy and safety of vincamine sustained release capsules on non- arteritic anterior ischemic optic neuropathy ( NAION) . · METHODS: Patients who were diagnosed with monocular onset NAION in acute stage from January to September 2015 were divided into two groups. Routine treatment such as steroid pulse therapy and neurotrophic treatment were given to all the patients. Vincamine was added to the treatment group patients with 30mg twice a day for 3mo. The best corrected visual acuity ( BCVA), mean deviation ( MD) of visual field, retinal nerve fiber layer ( RNFL ) , ganglion cell complex ( GCC ) , pattern visual evoked potential ( PVEP ) and OCT results were analyzed before and after the treatment. ·RESULTS:Totally 42 eyes of 42 patients were enrolled in our study. There were 27 patients in the treatment group, aged from 33 to 79 years old, the average value was 55. 55± 11. 83 years old. The control group has 15 patients, aged from 40 to 70 years old, the average value was 55. 71 ± 10. 06 years old. There were no statistical differences between the two groups in the baseline. After 3mo of the treatment, MD value of the two groups were lower compared with the baseline, the difference was statistically significant in the treatment and control group respectively (t= 2. 342, 2. 692; P = 0. 027, 0. 041). The difference of PVEP amplitude and potential of the two groups before and after the treatment were not statistically significant. The thickness of retinal nerve fiber layer and the ganglion cell complex were all lower than the baseline, and the difference was statistically significant (P<0. 001). The treatment of the two groups were both effective, the treatment group has better treatment effect than the control group. Adverse events related to the treatment of vincamine had not been found. ·CONCLUSION:Vincamine is helpful in the treatment of non-arteritic anterior ischemic optic neuropathy.