1.Effect of Phospholipids on Dissolution Rate of Ephedrine and Chlorogenic Acid from Decoction
Chinese Traditional Patent Medicine 1992;0(05):-
The effect of solubilization of phospholipid component of Chinese medicines on other active components in decoction is reported in this paper. The experi ment result showed that the dissolution rate of ephedrine and chlorogenic acid increased obviously as the content of phospholipid component in decoction rose.
2.The biologic effect of cryopexy on retinal pigment epithelium barrier
Ophthalmology in China 1993;0(03):-
With the tracer colloidal lanthanum,light micro- scope and transmission electron microscope in animal experiments,we studied the retinal pigment epithe- lium(RPE)barrier of 48 moderately severe cryoge- nic lesions on the retina of 21 rabbit eyes at dif- ferent intervals after cryopexy.Our findings showed that:1.the repair of disrupted RPE barrier by cryopexy was poor or incomplete,the regenerated RPE cells in restored RPE barrier of some cryogenic lesions showed degeneration and decompensation dur- ing the recovery period,and the tracer in choroidal capillaries leaked into the degenerated RPE cells and the subretinal space;2.the biologic effect of cryo- pexy on the retina was closely related to the acting time and the size of cryoapplication probe;and 3. the damaged grade of subretinal space caused by moderately severe cryopexy was comparable to Lincoff and Kreissig's criteria,but it was not absolute.
3.The efficacy of methylprednisolone injection and magnesium sulfate injection in the treatment of severe bronchial asthma and its influenc on inflammatory factors
Chinese Journal of Primary Medicine and Pharmacy 2016;23(10):1572-1574,1575
Objective To explore the clinical efficacy of methylprednisolone injection and magnesium sulfate injection in the treatment of severe bronchial asthma and the impact on inflammatory cytokines.Methods 87 cases of severe bronchial asthma were selected for the study,and they were divided into two groups according to the order of admission,the control group (43 cases ) was given methylprednisolone treatment,while the observation group (44 cases)was given methylprednisolone injection and magnesium sulfate treatment.The clinical treatment and inflammatory cytokine levels before and after treatment were compared between the two groups.Results The effective rate of the observation group was 93.18%,which was higher than 74.42% of the control group,the difference was significant(χ2 =10.33,P <0.05 ).After treatment,pulmonary functions of the observation group [FVC (3.72 ± 0.42)L,FEV1 (2.72 ±0.32)L and PEF(3.48 ±0.49)L/s]were increased significantly than before treatment(t =7.87,7.81,8.41,all P <0.05),and had significant differences compared with the control group(t =6.93,7.44, 7.20,all P <0.05).After treatment,inflammatory cytokines indicators of the observation group[IL -6 (67.44 ± 0.43)μg/L,TNF -α(80.32 ±7.34)ng/L,hs -CRP(3.32 ±0.89)mg/L]were significantly increased than before treatment(t =6.85,7.41,7.33,all P <0.05),compared with the control group,the differences were significant(t =6.55,7.04,6.45,all P <0.05).Conclusion The methylprednisolone combination with magnesium sulfate in treat-ment of severe bronchial asthma had significant effect,and it can effectively improve the airway inflammation,promote lung function in patients'recovery,and it has great clinical value.
4.IR Determination of Phospholipid Component in Semen Zizyphi Spinosae and Fructus Psoraleae
Chinese Traditional Patent Medicine 1992;0(11):-
The IR determination of phospholipid content in Semen Zizyphi Spinosae and Fructus Psoraleae, both of which are tonics,was reported for the first time.In this method,using PC as standard sample, chloroform as solvent and the absorption band of P-O-C bond as measurement wavelength,the ab- sorptive degree was linear for concentration in ranging from 0.6mg/ml to 4.0mg/ml.The standard deviation was 0.0682.CV was 1。69%。Compared with the result obtained by colorimetric assay, this method was simpler,its result was more stable.
5.Analysis of Intestinal Myoelectric Activity in Patients with Hepatic Cirrhosis
Yimin XIONG ; Weitian XU ; Hualing XU
Journal of Chinese Physician 2001;0(04):-
Objective To discuss application value of intestinal electromyography in patients with hepatic cirrhosis and to observe intestinal myoeletric activity.Methods There were 65 cases of hepatic cirrhosis in expermental group and 30 cases in control group. All the cases were recorded body surface intestinal electromyography using gastrointestinal myoelectric analyzer(WCDF-4B, Hefei , P.R.China). The parameters included average peak range-Ap, main frequency-Fp, average over zero frequency-Fz and special wave form were surveyed.Results Sharp higher Fz abnormal rate and emergence rate of special wave form in hepatic cirrhosis group were higher than in control group,P0 05.Conclusions In hepatic cirrhosis group,Fz was much higher than that in control group. And the intestinal myoelectric activity increased in the patients with hepatic cirrhosis,which represented by appearance of characteristic wave form that was frequent micromigration wave as well as load wave. Those changes accounted for heighten and irregularity of excitability intestinal myoelectric activity. Moreover, it will increase for the incidence of abnormality of intestinal myoelectric activity along with damage degree of hepatic function. Intestinal electromyography is a reliable method to judge intestinal myoelectric activity, the method has characteristics of harmless,free pain, convenient, safty and steady.
6.Protective effects of ulinastatin on islets isolated by automated method from canine pancreas
Yimin SONG ; Chunfang SONG ; Ping XU
Chinese Journal of Organ Transplantation 2003;0(06):-
Objective To study the protective effects of ulinastatin (UTI) on canine islets isolated by automated method and to determine whether the addition of UTI during the in situ pancreatic perfusion process may improve islet recovery. Methods There was no significant difference in donor-related factors (age, gender, warm ischemia time, cold storage time, weight and pancreas weight) between the two experimental groups. Twenty donors were randomly divided into two groups. Pancreases were in situ perfused via abdominal aorta using cold hypertonic citric potassium solution (HC-A) 2 500 ml, group 1 (HC-A group, n =10). The pancreases were perfused with cold HC-A and UTI ( 10 000 U/kg), group 2 (HC-A+UTI group, n =10). Intraductal collagenase V (4℃) delivery with controlled perfusion was done, the pancreas was dissociated in system of Ricordi Chamber and their purified islets were separated with Ficoll density gradient centrifugation. The digestion time, islets remaining trapped in exocrine tissue, final islet purity, insulin and C-pep secretory activity, and islet recovery were observed. The purified islets were observed under light microscopy and electronic microscopy. Results UTI supplementation did not affect the digestion time, islets remaining trapped in exocrine tissue, final islet purify, insulin and C-pep secretory activity and their ultrastructure, and islet recovery was increased. In the HC-A+UTI group the yield of islets was [( 6.17 ? 2.86 )?10 4] IEQ, while in the HC-A group, that was [( 3.42 ? 1.47 )?10 4] IEQ ( P
7.Analysis of the results of optical coherence tomography in eyes with repaired idiopathic macular hole after operation
Yimin XU ; Zhizhong MA ; Xin WANG
Chinese Journal of Ocular Fundus Diseases 1999;0(02):-
Objective To investigate the characteristics of optical coherence tomography (OCT) in eyes with repaired idiopathic macular hole (IMH) after operation and the relation with recovery of visual acuity. Methods The characteristics of OCT images of 24 patients (25 eyes) with repaired IMH after vitrectomy,internal limiting membrane(ILM)peeling and auto-serum healing were analyzed retrospectively. In the patients with IMH, the macular hole was found in 9 eyes at stage Ⅱ, 13 eyes at stage Ⅲ, and 3 eyes at stage Ⅳ. Examinations of best-corrected visual acuity, slit-lamp biomicroscopy with fundus contact lens, fundus photography, fundus fluorescein angiography(FFA) and OCT were performed on the patients 3 to 24 months after surgery. Results OCT images of the repaired IMH were categorized into 3 patterns: U-type (5 eyes) with relative normal foveal contour; V-type (7 eyes) with steep foveal contour;W-type (13 eyes) with foveal defect of neurosensory retina, but without warped hem of retinal hole or cystic formation. Postoperative visual acuities were improved in all of the patients and the best ones were in group U-type. Conclusion Characteristics of OCT images of repaired IMH may be related to the postoperative visual acuity.
8.STUDIES ON THE PHOSPHOLIPIDS AND FATTY ACIDS IN TRADITIONAL CHINESE MEDICINAL MATERIALS HIPPOCAMPUS AND SYNGNATHUS
Yimin XU ; Jianwei CHEN ; Rong GUO
Chinese Journal of Marine Drugs 1994;0(01):-
This paper deals with the analysis of the phospholipids and fatty acids in Hippocomnpus kelloggi Jordan et Synder, H. Histrix Kaup, II. trimaculalus Leach, II. kuda Bleeder, II. japonicus Kaup, Solenognathus hardwickii(Gray), Syngnathoides biacufcatus(Bloch) and Tracliyrliamphus serralus (Temminck &. Schlegel).The total phospholipids were extracted with Folch solvent and determined by molybdate blue spec-trophotometric method. The result showed that the contents of total phospholipids in these spccimins were 2. 56-7. 82mg/g.The nine kinds of phospholipid standards of absorbance proportional coefficient were detected in this paper. The phospholipid components were separated and determined by using thin - layer chro-matographic method and Vaskovsky solvent as a specific spray reagent. The quantitative analysis of the distribution of various phospholipids components in these specimen ts were carried out, by using TLC scanning and the corrective method of absorbance proportional coefficient. The resut showed that the Hippocampus contains about five phospholipids: lysophosphatidylcholine, sphingornyelin, phophatidylcholine, phosphatidylinositol, and phosphatidylethanolamine. The phosphatidylserine , phosphatidylglycerol, diphosphatidylglycerol and phosphatidic acid were more in Syugnathus than in Hippocampus, But in all these specimens, the main phospholipid components were lysophos- phatidylcholine, sphingornyelin and phosphatidylcholine.Fourteen fatty acid compositions in these specimens were analysed by GC -MS -DS. The result showed that the main fatty acid were hexadecanoic acid, 9 - octadecenoic acid, 8,11- octadeca-dienoic acid and 1,7,10,13,16,19 - docosahexaenoic acid.
9.The application of multi-media technique in the control system of medico-scientific research records
Yimin LIU ; Yaojun XIANG ; Yorfu XU ;
Chinese Journal of Hospital Administration 1996;0(07):-
To change the old stereotype of using literal and data information for storage and ex- change in medico—scientific records and provide a new record version rich in word and picture,a gener- al model of multi—media control system of medical records and an information storage pattern have been developed and the feasibility of development methods explored.
10.Study on anti-tumor effects of murine dendritic cells pulsed with PEP3-KLH peptide on prostate cancers
Yimin XU ; Haizhen LIU ; Faping YI
Journal of Chinese Physician 2015;17(11):1635-1639
Objective To explore the effects of anti-tumor immunity induced by dendritic cells (DCs) vaccine pulsed with PEP3-KLH (keyhole limpet hemocyanin) on induction of specific immunity against prostate cancers.Methods DCs were propagated from bone marrow of C57BL/6 mice in vitro with granulocyte-macrophage colony stimulating factor (GM-CSF) and interleukin-4 (IL-4).On day 5 of culture, DCs were harvested and incubated with PEP3-KLH or KLH.Then the DC vaccine was inoculated into C57BL/6 mice by subcutaneous injection for three times with an interval of two weeks.One week after the last vaccination, the levels of IL-2, IL-12, and interferon (IFN)-γwere measured with enzyme-linked immunosorbent assay (ELISA) kit.The aforementioned immunized mice with DC vaccines were challenged with transgenic adenocarcinoma of mouse prostate (TRAMP)-C2 tumor cells, the tumor growth curve was drawn, and survival rate was checked and compared.The cytotoxic T lymphocyte (CTL) activity induced by DCs was tested with lactate dehydrogenase (LDH) release method.The percentages of CD3 + , CD4+ ,or CD8 + T cells in tumor-infiltrating lymphocytes (TILs) were determined with flow cytometry.Results PEP3-KLH-DC group stimulated the body and induced higher levels of secreted IL-2, IL-12, and IFN-γ compared to DCs control and KLH-DC groups (P < 0.01).The tumor of mice vaccinated with PEP3-KLHDC grew significantly slower than that injected with DCs or KLH-DC (P <0.01).Compared to the others, the survival rate in PEP3-KLH-DC group raised remarkably (P < 0.01).PEP3-KLH-DC group induced more outstanding specific CTL activities of killing tumor cells than DCs control group and KLH-DC group (P < 0.01), and the cytotoxicities of TILs in PEP3-KLH-DC group was significantly enhanced (P <0.01).The percentages of CD3 + , CD4 + , or CD8 + T cells in TILs (40.9%, 34.1%) in PEP3-KLH-DC group were significantly higher than those in DC-KLH (27.3%, 5.2%) or DCs (26.2%, 5.1%) group.Conclusions PEP3-KLH-DC vaccine can inhibit effectively tumor growth, enhance long-term survival in mice,intensify the local immunologic function of tumor, and elicit and promote profound specific anti-prostate cancer cellular immune responses.