1.Study on Stability of Zhiling Liumiao Oral Liquids
Yuanyuan LI ; Fei LIU ; Lei SHI
China Pharmacist 2015;(2):335-337
Objective:To investigate the stability of Zhiling Liumiao oral liquids. Methods: The active ingredients in Zhiling Li-umiao oral liquids were determined by HPLC, and the identification was studied by TLC. Meanwhile, the other indices including char-acter, relative density, pH and microbial limit were determined as well. Results:The active ingredients in Zhiling Liumiao oral liquids could be influenced by strong light, while the changes were within the range of the quality standards, and the samples were stable in the accelerated test and long-term test. Conclusion:The designs of preparation process and package are rational to keep the stability of the preparation. The shelf time may be set at 12 months.
2.Observation of laparoscopic choledochoduodenstomy in hepatobiliary surgery
Zhihong WU ; Xianjie SHI ; Lei LIU ; Lei LEI ; Zaisheng LUO ; Youfu LIU
International Journal of Surgery 2012;39(4):230-232,289
ObjectiveTo explore the clinical application of laparoscopic choledochoduodenstomy in Hepatobiliary Surgery Department.MethodsTwenty-six patients of laparoscopic choledochoduodenstomy were retrospectively analyzed between January 2007 and September 2011 in Hepatobiliary Surgery Department of PLA General Hospital,including 8 cases of choledochalcyst,11 cases of bile duct stone and 7 cases of bile duct cancer.ResultsAll of patients were successfully performed operation of total laparoscopic choledochal cyst excision.The operation time was 60 to 110 minutes.And the time of hospital stay was 3 to 7 days.One patient was found anastomotic stoma stricture,the other cases had no post-operative complication.There was no patient dead.ConclusionLaparoscopic choledochoduodenstomy needs mastering the indication of operation and laparoscopic anastomosis technique.Under this condition,the operation will be safe and feasible.
3.Expression of plasma bone morphogenetic protein-4 in patients with coronary heart disease and intervention effect of rosuvastatin
Lijian PAN ; Juanjuan PAN ; Lei LIU ; Yijun SHI ; Hui GONG
Clinical Medicine of China 2014;30(5):489-492
Objective To investigate the changes of plasma bone morphogenetic protein-4 (BMP-4) levels in patients with coronary heart disease (CHD) and rosuvastatin intervention effect on BMP-4 level.Methods Fifty-two patients with CHD and 35 health people were enrolled in this study as CHD group and control group.ELISA method was used to detect the concentration of plasma BMP-4.Analyzed the relationship between plasma BMP-4 and blood lipids,flow-mediated dilation (FMD),nitric oxide (NO),cyclooxygenase-2 (COX-2),malondialdehyde (MDA) and superoxide dismutase (SOD).And observed the changing of plasma BMP-4 before and after rosuvastatin intervention.Results Plasma BMP-4 level in CHD patients was (7.53 ± 1.20) μg/L,higher than that of control group ((3.81 ± 0.79) μ g/L,t =3.541,P =0.006).After rosuvastatin treatment,plasma BMP-4 level in CHD patient was decreased from (7.53 ± 1.20) μg/L to (5.40± 0.98) μg/L (t =1.436,P =0.001).Plasma BMP-4 level was positively correlated with COX-2,MDA,low-density lipoprotein cholesterol,total cholesterol (r =0.395,0.350,0.274,0.288 respectively,P < 0.01 or P <0.05).But,it was negatively correlated with NO,high-density lipoprotein cholesterol,SOD,FMD (r =-0.291,-0.253,-0.476,-0.320 respectively,P <0.01 or P <0.05).COX-2,SOD and FMD were independent risk factors of plasma BMP-4 in patients with CHD.Conclusion Oxidative stress and endothelial dysfunction are in patients with CHD.Rosuvastatin treatment can remarkably reduce plasma BMP-4 level,alleviate vascular endothelium injury induced by oxidative stress and improve endothelial function in patients with CHD.
4.Clinical significance of autologous serum skin test (ASST) in the diagnosis of chronic urticaria
Xiaolei HE ; Tiechi LEI ; Xiaoming LIU ; Zhifeng FAN ; Ying SHI
Chinese Journal of Dermatology 2012;45(1):5-8
Objective To assess the relationships among the autologous serum-induced skin wheal-andflare reaction,ex vivo serum-induced basophil histamine release, and serum levels of IgG anti-FcεRI autoantibodies in patients with chronic idiopathic urticaria (CIU).Methods Sixty patients with CIU collected from the Renmin Hospital of Wuhan University were recruited for this study.Sera were obtained from the subjects,and ASST was performed in all of the subjects.The results of ASST were determined according to a recommended criterion described by Sabroe et al,and the positive results were further subclassified into wheal plus flare (W+F) pattern and wheal-only (W) pattern,negative results into flare-only (F) pattern and no response pattern.Enzyme linked immunosorbent assay was used to quantify the content of histamine released by autologous serum-induced basophils and serum levels of IgG anti-FcεRI autoantibodies.Results Of the 60 patients,19 (31.7%)were positive for ASST,including 16 (84.2%) presenting W+F pattern and 3 presenting W pattern; 41 were negative for ASST,including 3 (7.3%) giving F pattern and 38 giving no response pattern.The histamine release rate was significantly higher in ASST-positive patients than in ASST-negative patients (33.38% ± 9.83% vs.4.06% ±1.44%,t =5.13,P< 0.01),and was nearly twice as high as that in basophils induced by 10 μmol/L formylmethionyleucylphenylalanine (Fmlp).The serum levels of IgG anti-FcεRI autoantibodies were high in only patients giving (W+F) pattern (757.64 ± 168.99 ng/L),but low in the normal human controls (43.25 ± 16.63 ng/L).Conclusions The positive ASST result of wheal plus flare pattern is associated with high serum levels of IgG anti-FcεRI autoantibodies,and is suggestive of a clinical diagnosis of autoimmune chronic urticaria (ACU).
5.Diagnosis and treatment of poorly differentiated small intestinal neuroendocrine carcinoma
Hao WANG ; Ping CHEN ; Wei ZHAO ; Lei SHI ; Xinxin LIU
Chinese Journal of Digestive Surgery 2013;12(10):804-806
Small intestinal neuroendocrine carcinoma is poorly differentiated,highly malignant,and originated from the diffuse neuroendocrine system.It diffusely expresses the general neuroendocrine differentiation markers.The disease can be manifested as carcinoid syndrome,but most of the patients were with occult onset and absence of specific clinical symptoms,which led to difficult diagnosis before operation.On June 18,2012,a patient with manifestation of recurrent vague abdominal pain received capsule endoscopy at the Northern Jiangsu People's Hospital.The capsule endoscope was retained in the distal small intestine,and malignant ileum lesion was revealed during the surgical exploration.Finally,poorly differentiated neuroendocrine carcinoma with abdominal wall metastases was identified by pathological examination.
6.Pathogenetic analysis and treatment of bone resorption after chin augmentation with prostheses
Xiaojun TANG ; Zhiyong ZHANG ; Lei SHI ; Lin YIN ; Wei LIU
Chinese Journal of Medical Aesthetics and Cosmetology 2014;20(1):22-25
Objective To analyze and discuss the possible reasons of the bone resorption beneath the prostheses after chin augmentation.Methods Twelve patients were admitted to our department for further correction after chin augmentation with materials.The bone resorption was observed through the clinical research and X-ray examination.Results All the patients were underwent the removal of the materials,genioplasty was performed in 8 patients,and two patients were treated by chin augmentation with polyethylene.All the patients were satisfied with their facial contouring.Mild bone resorption was found in seven patients (depth of bone resorption ≤2 mm),in which five patients were used with silicone materials,two patients were performed with expanded polytetrafluoroethylene implants.Moderate bone resorption was seen in three cases.All of them were used with silicone implants (2 mm < depth of bone resorption ≤4 mm).Severe bone resorption happened in two patients (depth of bone resorption >4 mm).One was used with silicone implant,and the other one was carried out with expanded polytetrafluoroethylene implant.Conclusions The imbalance among mentalis muscle,materials and underlying bone might be one of the key reasons.Thus for mild and moderate microgenia cases,chin augmentation with material is suitable,while long-term fellow-up study is necessary.But for the cases of severe mirogenia or microgenia and micrognathia with dentofacial deformity or mentalis muscle hyperactivity,genioplasty might be performed as well to correct their deformities.
7.Effects of Leptin on the expression of CD80, CD86 and HLA-DR in human monocytes
Liping SHI ; Zhihua LIU ; Xiuping ZHOU ; Daqing YANG ; Linsheng LEI
Journal of Chinese Physician 2011;13(10):1313-1315
Objective To study the effects of Leptin on the expression of CD86 and HLA-DR in human monocytes.Methods The expression of CD86 and HLA-DR in THP-1 Cells and human primary monocytes were detected by flow cytometry.Results Expression of CD86 and HLA-DR in THP-1 cells was significantly increased after treatment with high-dose Leptin ( CD86Untreated group:8.78 ± 1.66,CD86leptin10:50.76 ± 4.29,CD86leptin100:95.20 ± 4.90; HLAUntreated group:20.75 ± 2.12,HLAleptin10:102.14 ± 5.75,HLAleptin100:104.32 ± 4.75;).The similar results were observed in human primary monocytes ( CD86Untreated group:17.91 ± 1.78,CD86leptin100:48.80 ± 3.60; HLAUntreated group:34.10 ± 2.76,HLAleptin100:88.86 ± 3.53).Conclusions By up-regulating CD86 and HLA-DR expression,Leptin might enhance the ability to present antigen in THP - 1 cells and human monocytes.
8.A comparative imageology study of TOF-MRA and SWI in the diagnosis of intracranial vascularmalformations
Lei SHI ; Lintao QU ; Linglian ZUO ; Shengli ZHANG ; Xiaofang LIU
Clinical Medicine of China 2011;27(11):1170-1173
Objective To study the imaging of arteriovenous malformation(AVM)and cerebral cavernous angiomas(CCA)by 3D-TOF MRA and SWI.Methods The clinical manifestations and MR imaging characteristics of 44 cases with intracranial vascular malformations were retrospectively analyzed.The MRA imaging and SWI imaging of 26 CCA cases and 18 AVM cases were compared.Results The location,size,input.artery and output vein of arteriovenous fistula were clearly showed by 3D-TOF MRA.3D-TOF-MRA did not show the artery of hemangioma.The imaging of SWI can clear display the number and increase of cavernous hemangioma,comparing with the conventional sequence.Moreover,SWI was effective to show the tortuous veins of arteriovenous malformation.However,it was not able to directly show the overview of abnormal blood vessels and big arteries such as input artery.Conclusion 3D-TOF MRA technologies is powerful to show the arteriovenous malformation with high flow velocity and low resistance(Such as AVM),while SWI has advantages in showing the cavernous hemangioma with low flow velocity and small diameters.Joining 3D-TOF-MRA and SWI techniques will improve the detection of cerebral vascular malformations and reduce the misdiagnosis and missed diagnosis.
9.Studies on the calibration of mammography automatic exposure mode with computed radiology
Hongzhou ZHU ; Guoliang SHAO ; Lei SHI ; Qing LIU
Chinese Journal of Radiological Medicine and Protection 2010;30(3):355-357
Objective To realize the optimization of image quality and radiation dose by correcting mammography automatic exposure,according to automatic exposure controlled mode of mammography film-screen system . Methods The film-screen system(28 kV) was applied to perform automatic exposure of plexiglass(40 mm) and get the standard dose of exposure, the exposure mode of CR base on LgM =2.0 was rectified, which was divided into 10 steps. Mammary glands pattern(Fluke NA18-220) were examined with CR( 26,28, and 30 kV ) by the automatic exposure mode corrected. The exposure values(mAs) were recorded. CR image was diagnosed and evaluated in double blind way by 4 radiologists according to American Collage of Radiology(ACR) standard. Results Based on the standard of CR automatic exposure with the dose higher than the traditional exposure of film-screen system, the calibration of mammography automatic exposure was accomplished. The test results of the calibrated mode was better than the scoring system of ACR. Conclusions Comparative study showed improvement in acquiring high-quality image and reduction of radiation dose. The corrected mammography automatic exposure mode might be a better method for clinical use.
10.Study on secondary metabolites of endophytic fungi Penicillium polonicum.
Jing LIU ; Guang-Zhi DING ; Lei FANG ; Shi-Shan YU
China Journal of Chinese Materia Medica 2014;39(20):3974-3977
The PDB culture medium was selected to ferment the endophyte strain, and the secondary metabolites of endophytic fungi Penicillium polonicum were studied. Combined application of Sephadex LH-20, ODS and HPLC chromatographies over the ethyl acetate extract of the fermented culture led to the isolation of 6 compounds. By spectral methods, the structures were elucidated as [3, 5-dihydroxy-2-(7-hydroxy-octanoyl)]-ethylphenylacetate (1), (3, 5-dihydroxy-2- octanoyl)-ethyl phenylacetate (2), (5, 7-di- hydroxy-9-heptyl)-isobenzo pyran-3-one (3), 3-(hydroxymethyl) 4-(1E)-1- propen-1-yl-(1R, 2S, 5R, 6S)-7-oxabicyclo [4.1.0] hept-3-ene-2, 5-diol (4), (E)-2-methoxy-3-(prop-1-enyl) phenol (5) and p-hydroxylphenylethanol (6).
Biological Factors
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chemistry
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metabolism
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Endophytes
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chemistry
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isolation & purification
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metabolism
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Fabaceae
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microbiology
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Fermentation
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Penicillium
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chemistry
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isolation & purification
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metabolism
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Secondary Metabolism