1.Try to talk about knowledge yuan indexing in ancient books of traditional Chinese medicine clinical application of the literature indexing
International Journal of Traditional Chinese Medicine 2015;(4):296-298
Large number of TCM ancient books, the literature, has a long history and complicated contents, including the principles, methods, prescriptions, medicines and other various aspects. How to obtain and make use of knowledge in ancient books, we must establish a set of relatively precise knowledge and semantic relation networks. Knowledge yun performing reasonable rebuilding of TCM literature, containing much TCM knowledge and information, will be an important way for knowledge findings.
2.Research progress on risk factors of osteoporotic fractures in patients with rheumatoid arthritis
Chinese Journal of General Practitioners 2016;(2):152-155,156
Rheumatoid arthritis is a autoimmune diseases characterized as joint chronic synovitis, and is accompanied with systemic damage.Osteoporotic fracture is one of the common complications of rheumatoid arthritis, which may decrease quality of life, and even increase the mortality of patients.Variety of factors may be associated with the occurrence of osteoporotic fractures in rheumatoid arthritis patients.In this article, through the literature review we discuss the risk factors of osteoporotic fracture, including vitamin D deficiency, lower limb muscle strength and balance ability in rheumatoid arthritis patients.
3.The regulation roles of protein kinase C alpha in enhanced expression of type Ⅰ inositol 1,4,5-trisphophate receptors induced by tumor necrosis factor alpha
Journal of Chinese Physician 2013;15(8):1013-1017
Objective To investigate the signal mechanism of protein kinase C alpha(PKC-α)participated in enhanced expression of type Ⅰ inositol 1,4,5-trisphophate receptors (IP3 RI) induced by tumor necrosis factor alpha(TNFα),in order to delineate the mechanisms of decreased glomerular filtration rate (GFR) in hepatorenal syndrome caused by TNFα.Methods The glomerular mesangial cells (GMCs)line from rats was chosen as experimental material.GMCs were divided into control (D),TNFα-2 h,TNFα-4 h,TNFα-8 h,and TNFα-24 h groups.Moreover,another two groups were sanflngol-8h (S),TNFα + Sanfingol-8h(TS)groups.The effect of TNFα on the expression of IP3RI was detected by immunocytochemical staining,Western blotting,teal time-polymerase chain reaction (PCR) assays.Results Immunocytochemical staining demonstrated that IP3 RI was mainly distributed in cytoplasm of GMCs.Enhanced positive staining was determined in all TNFα-treated groups,especially in TNFα-8 h group.Western blotting demonstrated that the expression of IP3RI protein was significantly higher in TNFα-4 h,TNFα-8h and TNFα-24 h groups than control group(4 h:1.82 ± 0.63 ; 8 h:2.95 ± 0.66 ; 24 h:2.48 ± 0.72 ; D:1 ±0.02 ; F =9.24,P < 0.05).The expression of IP3 RI protein was the highest in TNFα-8 h and TNFα-24 h groups(P <0.05).No difference was found among S,TS,and control groups(S:1.39 ±0.65; TS:1.35± 0.37 ; P > 0.05).Real time-PCR found the expression of IP3 RImRNA was significantly higher in all TNFα-treated groups than control group(2 h:3.35 ± 1.97; 4 h:3.16 ± 1.35; 8 h:3.70 ± 1.76; 24 h:4.49±1.70; D:1 ±0.01; F =6.167,P <0.05).No difference was found among all TNFα-treated groups(P >0.05).No difference was found among S,TS,and control groups(S:1.53 ±0.79; TS:1.32 ± 0.38 ; P > 0.05).Conclusions IP3 RI was mainly distributed in cytoplasm of GMCs.TNFa could enhance the expression of IP3 RI protein and IP3 RI mRNA,which could be blocked by sanfingol,a PKCα inhibitor.It might be an important signal in the mechanisms of GFR decrease caused by TNFα in hepatorenal syndrome.
4.Enhanced calcium release induced by tumor necrosis factor alpha in glomerular mesangial cells participated in hepatorenal syndrome
Journal of Chinese Physician 2013;(1):11-14
Objective To investigate the effect of tumor necrosis factor-α (TNF-α) on intracellular calcium concentration ([Ca2 +] i) and the contraction of glomerular mesangial cells (GMCs),and prove that hypercontractility of GMCs induced by TNF-α in hepatorenal syndrome(HRS) was connected with inositol 1,4,5-trisphophate receptors (IP3Rs).Methods GMCs were divided into TNF-α-treated 0 h,4h,and 24 h groups.Another 3 groups were blocked by 2-APB.The effect of TNF-α on [Ca2 +] i was identified and observed whether it could be blocked by 2-APB.Contraction of GMCs was determined by accessing the surface area of cells before and after contraction.Results TNF-α significantly increased ET-induced calcium release,in that we found higher [Ca2 +] i after stimulated by ET in TNF-α-treated 4 h group and 24 h group[4 h:(648.08 ±267.11) nmol/L; 24 h:(879.30 ±-260.29) nmol/L; 0 h:(619.93 ±258.94)nmol/L,F =5.486,4 h vs 0 h:P < 0.05 ; 24 h vs 0 h:P < 0.05 ;24 h vs 4 h:P > 0.05].This phenomenon can be totally blocked by 2-APB in all groups.The change in planar surface area in response to ET was slightly in control cells but significantly enhanced in TNF-α-treated cells [4 h:(2198 ± 340)μm2; 24h:(2260±553)μm2; 0 h:(2436±474)μm2,F =4.001,4 h vs0 h:P <0.05; 24 h vs0 h:P <0.05;24 h vs 4 h:P > 0.05].Conclusion TNF-α can enhance ET-induced sarcoplasmic reticulum Ca2 + release and increase the contractile responses of GMCs to ET,which is associated with IP3Rs.TNF-α is responsible for hyperconstractility of glomeruli in HRS.
5.DETERMINATION OF CHOLESTEROL IN HUMAN SERUM BY COULOMETRIC TITRATION
Zhiming WEN ; Airu LIU ; Lixin XU
Acta Pharmaceutica Sinica 2000;35(4):297-300
To study the determination method of cholesterol in human serum by Coulometric titration. METHODS: The titration was carried out in an electrolytic solution containing 1 mol.L-1 potassium bromide and glacial acetic acid (1∶3). Bromine was electrogenerated at the anode and cholesterol reacted with bromine with a value of reactional electrons (n) as 2. RESULTS: The ranges of recovery for 0.115 mg to 0.459 mg of cholesterol were from 93.9% to 105%, and the average recovery was 100.3%. The relative standard deviation in all applied analysis was less than 1.5%. The accuracy of the method was also assessed in comparison with the results obtained by the enzymatic method used clinically. CONCLUSION: The method proposed is simple, rapid and accurate, and is suitable for the determination of cholesterol in human serum samples.
6.Diagnosis and treatment of obstructive jaundice following transcatheter hepatic arterial chemoembolization for hepatic cavernous hemangioma
Pengfei LIU ; Wen XU ; Jiamei YANG
Chinese Journal of Digestive Surgery 2014;13(9):740-742
Hepatic cavernous hemangioma is the most common benign tumor of liver.Hepatic artery embolism chemotherapy is one of the commonly used treatment methods,but more and more related complications and sequelae have been reported recently,including obstructive jaundice caused by damaged biliary tract.Because the symptoms are not typical,obstructive jaundice might be misdiagnosed as malignant biliary tumor,which brought troubles to subsequent treatment.In this article,the clinical data of 2 patients with obstructive jaundice following transcatheter hepatic arterial chemoembolization for hepatic cavernous hemangioma were retrospectively analyzed,and the experience in the diagnosis and treatment of this disease was summarized.
7.Explore the construction of thesaurus in the ancient literature of traditional Chinese medicine digital construction
Wen XU ; Changhua LIU ; Man GU
International Journal of Traditional Chinese Medicine 2015;(1):1-3
Chinese medical thesaurus was constructed setting knowledge element as the core and knowledge classification as the basis. In making the full use of our previous traditional knowledge classification research on traditional knowledge protection of TCM, the ancient literature of TCM knowledge classification system was constructed. The construction of TCM ancient books thesaurus plays a vital role in ancient Chinese medicine resource description, intelligent retrieval and knowledge discovery. This article disscussed the necessity of constructing Chinese medical thesaurus and the problems need to pay attention to in the process of building from three points of the Chinese medical thesaurus construction idea, plan, and the relevant system construction.
8.Diagnostic value of craniocerebral magnetic resonance angiography on adult Moyamoya disease
Yun XU ; Wen LIU ; Qingling HUANG
Journal of Clinical Neurology 2001;0(05):-
Objective To investigate the diagnostic value of the craniocerebral magnetic resonance angiography(MRA) in adult moyamoya disease.Methods 20 adult patients with Moyamoya disease were examined by DSA,MRI and MRA.Results DSA showed that the ending of internal carotid artery system were stenosis or occlution,and the fog-like blood vessel networks at base of skull were observed in the 20 patients.By MRI,the cerebral ischemical changes were found in 11 cases,intracerebral hamrrahge was found in 9 cases.MRA showed that cerebral artery were stenosis or obstruction in all of the 20 patients,16 cases(80%) with the fog-like blood vessel net in the thalamus-basal ganglia region.The detectable rate of abnormal cerebral basal vascular network was no statistical difference between DSA and MRA.Conclusions MRA can provide more information of cerebral artery straitness or obstruction and fog-like blood vessel net in the adult patients with Moyamoya disease,and without hammerless.MRA has a very importent value of diagnosis in the adult moyamoya disease.