1.Biological research evaluating the Chinese medical theory of the association of the kidney with the ears.
Journal of Integrative Medicine 2012;10(2):128-34
ABSTRACT: "Association of the kidney with the ears" is central to the traditional Chinese medical (TCM) theory of the viscera and their manifestations. Previous studies have shown that thyroxin, aldosterone, calcium and iron might be the material basis of the correlation between the kidney and the ears. Due to restriction in research techniques and methods, there has been no further progress in this research field, whose modern biological mechanisms and scientific connotations have not been explained clearly. In recent years, the progress of biological techniques and research on kidney essence provided promising opportunities for research of the association between the kidney and the ears. This article summarized the study progress of "association of the kidney with the ears" theory and posed some meaningful study thoughts. Presbycusis is a kind of degenerative disease caused by aging, which is one aspect of aging of the human body. Because aging is considered as physiological "kidney deficiency", presbycusis can be regarded as a model of "kidney deficiency" deafness. In conclusion, investigating the correlation between "kidney deficiency" and presbycusis using biotechnology systems combined with "essence of kidney", should provide a sound basis for study of the theory of the relationship between the kidney and the ears. This will provide new and valuable information for the modern biological research about the theory of visceral associations in TCM.
3.Antiplatelet agent resistance and prevention and treatment of stroke
International Journal of Cerebrovascular Diseases 2013;21(5):378-384
A large number of studies have confirmed that antiplatelet agents reduce the relative risk of stroke,myocardial infarction,or death by an average of 22%.However,many patients still have thrombotic events during the period of taking anti-platelet agents,and this is called anti-platelet agent resistance.Its incidences reported are very different.The incidence of aspirin is 3% to 85%,and that of clopidogrel is 28% to 44%.The exact cause of antiplatelet agent resistance remains unclear.It may be associated with several factors,including decreased drug bioavailability,genetic polymorphisms,activation of other platelet activation pathways,and increased circulating platelets.Currently,a variety of laboratory methods have been used to detect antiplatelet agent resistance,its criteria are different.In addition,the response measures of antiplatelet agent resistance also have no conclusion,and this has brought greater difficulties for the prevention and treatment of stroke.
4.The detection of procoagulant activity of tissue factor in patients with type 2 diabetic nephropathy and its clinical significance
Chinese Journal of Postgraduates of Medicine 2012;35(19):30-32
Objective To detect the expression level and procoagulant activity of tissue factor (TF)in the blood and urine in patients with type 2 diabetic nephropathy (DN),and investigate its related clinical significance.Methods A total of 120 DN patients were collected and divided into 3 groups according to urinary albumin and creatinine ratio:normal albuminuria group (<3.4 mg/mmol) with 64 cases,microalbuminuria group ( ≥3.4 mg/nunol,and < 34.1 mg/mmol) with 35 cases and macroalbuminuria group (≥34.1 mg/mnol) with 21 cases.Twenty healthy persons were enrolled as control group.The expression of monocytes TF in peripheral blood was detected by flow cytometric analyzer.The expression ofTF in the blood and urine was detected by ELLSA.The prcoagulant activity of TF was detected by one-stage coagulation.Results The expressions of monocytes TF in normal albuminuria group,microalbuminuria group and macroalbuminuria group [ (4.32 ± 1.25 )%,(5.01 ± 1.73)%,( 1 1.83 ± 2.14)% ] were significantly higher than that in control group [(0.84 ± 0.36)% ](P <0.01).TF procoagulant activity in normal albuminuria group,microalbuminuria group and macroalbuminuria group [ ( 64.3 ± 21.2),( 67.1 ± 17.3 ),( 113.8 ± 44.4)mU/L] were obviously higher than that in control grouP [ (23.8 ± 16.4) mU/L](P< 0.01 ).The expression of monocytes TF in normal albuminuria group and microalbuminuria group had no statistical significance (P>0.05),while the expression in macroalbuminuria group had significant difference compared with that in normal albuminuria group and microalbuminuria group (P < 0.01 ).The expression of TF in the blood and urine of DN patients was obviously higher than that of control group (P < 0.01 ).The expression of TF in the blood was positively correlated with that in urine (r =0.684,P < 0.01 ).Conclusions The expressions of TF in the blood and urine in DN patients increase and its procoagulant activity enhances.The expression level of TF has a closed relationship with the increase of albuminuria.
5.Determination of Trace Manganese in Water Samples by Flame Atomic Absorption Spectrometry with Cloud Point Extraction
Shanmei XIAO ; Jianrong CHEN ; Xiaodong YANG
Journal of Environment and Health 1992;0(05):-
Objective To develop a new method for the determination of trace manganese in water by flame atomic absorption after cloud point extraction. Methods The effect of experimental conditions such as pH value and concentration of reagents and equilibration temperature on cloud point extraction and determination sensitivity was discussed. The chemical variables affecting the separation phase and extraction recovery were optimized. Results Under the optimum conditions, pre-concentration of only 50 ml of sample in the presence of 0.05% Triton X-114 presented a detection limit of 0.28 ?g/L(3?) for manganese. The enhancement factor was 65 for manganese. The relative standard deviation was 2.17%. The calibration graph using the pre-concentration system for manganese was linear with a correlation coefficient of 0.999 at levels near the detection limits up to at least 120 ?g/L. The recovery rates were 98.0%-101.5%. Conclusion The method is rapid, accurate, simple and is suitable for determination of trace manganese in water samples.
6.Simultaneous Determination of Palmatine, Berberine and Jateorhizine in Jinji Capsules by QAMS
Yanmo YANG ; Jianrong MIU ; Hai LIN
China Pharmacist 2014;(9):1470-1472
Objective: To establish a quantitative analysis of multi-components by single marker ( QAMS ) for determining the three alkaloids in Jinji capsules. Methods:With the typical composition palmatine as the internal standard, the relative correction fac-tor ( RCF) between the palmatine and berberine or jateorhizine was respectively established, and the content of berberine and jateorhiz-ine was respectively calculated by QAMS. An external standard method was used to determine the three alkaloids, and the calculated values were compared with the estimated values by Pearson correlation coefficient. Results:There was no significant difference between the calculated values in QAMS and the estimated values in the external standard method, and the RCF was credible. Conclusion:The new method is feasible and accurate to evaluate the contents of the three alkaloids in Jinji capsules.
7.Short-term efficacy and safety of liraglutideinjection combined with insulin inobese diabetes mellitus
Li YANG ; Jianrong HUA ; Jingen QIAN
Chinese Journal of Biochemical Pharmaceutics 2017;37(4):31-33
Objective To investigate the short-term therapeutic effect of liraglutide injection combined with insulin pump subcutaneous infusion of insulin in the treatment of early-onset obesity.Methods 100 patients with diabetes mellitus treated with endocrine specialist outpatients from May 2015 to August 2016 in our hospital were selected and randomly divided into three groups,insulin+liraglutide injection 1.2 mg/d group(treatment group 1),insulin+metformin 0.5 tid group(treatment group 2)and insulin intensive group(control group).The control group of 20 cases,the remaining 40 cases each group.Each patient was treated with their own treatment regimen.Target blood glucose: fasting blood glucose≤7.0mmol/L,2h postprandial blood glucose≤10mmol/L that is compliance,blood glucose≤4.4mmol/L that low,blood glucose≤3.9mmol/L that low blood sugar.Two groups of patients adhere to three months of treatment.At the time of admission,after 2 weeks of treatment and 6 months of treatment,venous blood was taken for biochemical examination.The corresponding biochemical indicators were compared and the therapeutic effects of the two regimens were compared.Results There were significant differences in the levels of fasting glucagon,fasting C-peptide and body mass index between the two groups after three weeks of treatment and three months after treatment(P<0.05).The total amount of insulin,the time of reaching the standard and the frequency of hypoglycemia of three groups were compared,the difference was statistically significant(P<0.05).Conclusion Using three kinds of treatment for the treatment of elderly obese diabetesmellitus have a significant effect.However,the treatment regimen of insulin+liraglutideinjection 1.2 mg/d is effective in the control of diabetes and the total insulin dosage,as well as the number of hypoglycemia occurred,are better than the other two groups of treatment.
8.Vascular endothelial grow factor 165 and angiopoitin-1 augment revascularization in a rat hindlimb ischemia model
Jianrong SONG ; Zhijian YANG ; Fumin ZHANG
Chinese Journal of Interventional Cardiology 1993;0(02):-
Objective To study the angiogenic effects of adenovirus mediated human vascular endothelial growth factor 165 and human angiopoietin-1 (Ad 5-VEGF 165 , Ad 5-Ang-1) in rat models of hindlimb ischemia. Methods Rat models of hindlimb ischemia were established by ligation and peeling off rat′s femoral arteries. Ad-VEGF 165 and Ad-Ang-1 were intramuscularly transferred into the rat ischemic hindlimbs. The expression of VEGF 165 and Ang-1 were examined by Western blotting. Immunohistochemistry was performed to illustrate the effects on rat ischemic muscles after gene transferring. Results (1) Western blotting showed a high expression of VEGF 165 and Ang-1 in the ischemic hindlimb muscle transferred with Ad 5-VEGF 165 and Ad 5-Ang-1 VEGF 165 respectively. (2) There was no significant difference between groups on 7 days after the transfer. The capillary to muscle fiber ratio was significantly higher in the treating groups than that in control groups and were significantly higher in VEGF 165 +Ang-1 group than in VEGF 165 or in Ang-1 groups on day 14th and day 21th. (3) Many structured vessels surrounded by a layer of smooth muscle cells were found in Ad-VEGF 165 and Ad-VEGF 165 +Ad-Ang-1 groups, the number of SMA + vessel per muscle fiber was obviously higher than those in control groups. (4) Enormous cells positive for BrdU appeared in treated muscles in Ang-1, VEGF 165 , VEGF 165 +Ang-1 groups and many of them were positive for C-Kit, an antigen expressed by pluripotent marrow stem cells. Some C-Kit+ cells were incorporated in sites of neovascularization. Conclusion (1) Vascular endothelial growth factor 165 and angiopoietin-1 can promote neovascularization in rat models of hindlimb ischemia and the angiogenic effect is much more significant in Ad-VEGF+Ad-Ang-1 group. (2) VEGF 165 can increase the number of vessles that are coated with smooth muscle cells which shapes are similar to arterioles. (3) Not only angiogenic effect but perhaps vasculogenic effct also contribute to the neovascularization.
9.Type B synoviocytes induced by transforming growth factor beta 1 combined with Pluronic-F127 to construct tissue engineering cartilage in vivo
Weiping LI ; Bin SONG ; Rui YANG ; Jianrong HUANG ; Yang SONG
Chinese Journal of Tissue Engineering Research 2009;13(46):9055-9060
BACKGROUND:The type B synoviocytes induced by transforming growth factor β1(TGF-β1) have the potential to differentiate into chondrocyte,which can remain the phenotype in vitro. However,whether the transfected cell combined with scaffold can form cartilage tissues need further research. OBJECTIVE:Rabbit type B synoviocytes was transfected by liposome method in vitro,combined the cells with Pluronic-F127,and then implanted into nude mouse to construct tissue engineering cartilage. Additionally,to explore the feasibility of synoviocytes differentiate into chondrocytes.DESIGN,TIME AND SETTING:The randomized animal experiment of cytology observation. The experiment was performed at the Medical Research Center,the Second Affiliated Hospital of Sun Yat-sen University between April 2007 and May 2008.MATERIALS:Healthy New Zealand white rabbits,aged 3 months,and 12 BALB/c nude mice,aged 4 weeks,weighted 20 g.METHODS:The synovial membrane tissues were taken out from the rabbit knee,isolated by enzyme digestion,and then transfected. The positive cloning was screened by G418,and the expression of TGF-β1 and collagen Ⅱ was detected. The Pluronic-F127 was dissolved at 4℃ and prepared fluid with concentration of 30%. The fluid was mixed with cells. At the same time,there were 2 groups as the control group:chondrocytes with Pluronic-F127,and synoviocytes transfeced by pcDNA3.1(+)and Pluronic-F127. The cell density was 5x1010/L. Each compound (0.2 mL) was injected into the subcutaneous of the nude mouse back. Rats were sacrificed at weeks 4,6 and 8 to harvest samples.MAIN OUTCOME MEASURES:Cell growth curve;phenotype change of the cells after transfection;histological observation of the tissue in the subcutaneous of the nude mouse back. RESULTS:Cell growth curve demonstrated that the living activity of the transfected cells was temporary decreased,which returned into normal level at days 6,7 after transfection. At day 4 after transfection,TGF β1 were positive expressed,and at day 7,the collagen Ⅱ staining were positive. The compounds in the subcutaneous of the nude mouse back formed immature chondroid tissues at week 4,which turned to mature chondroid tissue at week 8,and the collagen Ⅱ staining were positive.CONCLUSION:The transfected synoviocytes can express the phenotype of chondrocytes in vitro,and form chondrocyte-likecells. The transfected synoviocytes with Pluronic-F127 can form chondroid tissues in nude mice.
10.Research progress in biological basis of cold and heat essence of Chinese medicine.
Yuting YIN ; Xiaowan LI ; Yang DONG ; Jianrong SHI
Journal of Integrative Medicine 2012;10(12):1328-35
Cold-heat problem is one core of traditional Chinese medicine theory. This paper summarizes the experimental research related to the biological basis of cold-heat essence in cold-heat syndrome, cold-heat body constitution and cold-heat property of Chinese herbs. In view of the classical physiological and biochemical indices, gene expression, protein expression and metabolic differences, differences in cold-heat syndrome or cold-heat constitution are mainly based on neurotransmitter, thyroid function, sex hormone, cyclic nucleotide system, and energy metabolism relating to the corresponding gene and protein expression. Furthermore, this paper analyses the change of correlation indices that accompany with a dynamic development process of "constitution-syndrome-herbal intervention", implying that the research of biological basis of cold-heat essence has turned from single index to multiple indices, and from dispersion research to system research.