2.Comparative study on the culture of rabbit bone marrow mesenchymal stems cells on two scaffold materials
Hang YIN ; Xiaodong WANG ; Ya ZHANG
Orthopedic Journal of China 2006;0(20):-
0.05).[Conclusion]Both SF and NH/C have good biocompability with BMMSCs and could be used as an ideal scaffold material in tissue engineering.
3.Iinhibitory effects of miR-200a on proliferation and migrating ability of conjunctival fibroblasts and its mechanism
Xue, YIN ; Ya, LIANG ; Zhilan, YUAN
Chinese Journal of Experimental Ophthalmology 2016;34(12):1087-1091
Background Scarring of surgical area,the most important factor,leads to the failure of glaucoma filtering surgeries.Therefore,more and more attentions are paid to the causes and process of scar formation.Objective This study was to compare the differences of proliferation and migrating abilities of fibroblasts between filtering bleb scar tissue and normal Tenon capsular tissue,and to investigate the inhibitory effects of miRNA-200a (miR-200a) on biological behavior of conjunctival fibroblasts.Methods Normal Tenon capsular tissue and filtering bleb scar tissue were collected during the strabismus surgery and glaucoma filtering surgery,respectively for the primarily culture of fibroblasts.The proliferation (absorbency,A) of the cells was assayed by cell counting kit-8 (CCK8) method;the relative migrating distance of the cells was measured by cell scratch test;and the relative expressions of transforming growth factor-β1 (TGF-β1)mRNA and miR-200a mRNA in the cells were detected by realtime fluorescence quantitative PCR.TGF-β1 mimic of 0,1,2 and 5 ng/ml was added in the medium of human normal Tenon capsular-derived fibroblasts (HTFs),and 0.00,0.25,0.50,1.00 μg/ml TGF-β1 inhibitor was added in the medium of human scarring-derived fibroblasts (HSFs) for 24 hours,respectively,and CCK8 was used to evaluate the proliferation of the cells.The relative migrating distance as well as the relative expressions of miR-200a mRNA were analyzed in the 2 ng/ml TGF-β1 mimic-or 1.00 μg/ml TGF-β1 inhibitor-treated cells.Results The primary conjunctival presented the spindle and star-like in shape with large body and oval nuclei.The cells showed the positive response for keratin and vimentin antibodies.The A values were 1.476±0.110 in the HSFs and 0.958±0.074 in the HTFs,with a significant difference between them (t =24.900,P=0.016).The relative expressions of TGF-β1 mRNA were significantly higher in the HSFs than those in the HTFs,and the relative expressions of miR-200a were evidently lower in the HSFs than those in the HTFs,showing significant differences between them (t =6.358,P =0.024;t=7.394,P =0.018).Compared with the 2 ng/ml TGF-β1 mimic-treated HTFs,the relative migrating distance increased,while the expression level of miR-200a mRNA was significantly reduced in the 2 ng/ml TGF-β1 mimictreated HSFs (all at P<0.05);Compared with the 1.00 μg/ml TGF-β1 inhibitor-treated HTFs,the relative migrating distance decreased,but the expression level of miR-200a mRNA was significantly elevated in the 1.00 μg/ml TGF-β1 inhibitor-treated HSFs (all at P<0.05).Conclusions The proliferation and migrating abilities are stronger in the HSFs than those in the HTFs,which probably is regulated by the expression of miR-200a in the cells.The miR-200a plays a negative feedback for the effect of TGF-β1 promoting proliferation and migration of fibroblasts.
4.Analysis of 300 cases of adverse drug reactions and treatment cost
Xirong ZHAO ; Shide CUI ; Ya YIN
International Journal of Traditional Chinese Medicine 2013;(7):583-585
Objective To analyze 300 cases of adverse drug reaction (ADR) distribution and the cost for the past two years.Methods Original data of 300 ADR eases from 2011 to 2012 in our hospital and drug used for treatment of ADR were statistically analyzed; and the amount of money spent on drugs treating ADR was calculated.Results In 300 cases of ADR reports,intravenous injections caused ADR incidence (87.00%) max,far higher than other routes of administration.and ADR caused by anti-infective drugs ranked first.ADR clinical manifestations in the majority of skin reactions such as hives,rash,swelling,anaphylactic shock,followed by the digestive system,nervous system and cardiovascular system.Costs of medicines for the treatment of ADR were analyzed and found 168 cases of ADR occurred after the treatment cost was 81,538.8 yuan,an average of 485.35 yuan,and the highest one used for a patient was 3023.68 yuan.Conclusion It would be helpful to reduce or prevent ADR occurrence,improve the drug rational use through strengthen ADR and drug safety monitoring.
5.Determination of electrical stimulation pain perception and analysis of the related factors.
Ji-Ri-Mu-Tu-Ya ; Yan YIN ; Tao ZHU
Journal of Biomedical Engineering 2013;30(6):1200-1208
The electrical pain perception were determined in healthy Chinese adults and factors were assessed. The anxiety-depression state of one hundred healthy Chinese were evaluated and the general information was recorded. Then electrical pain perception (perception threshold, pain threshold, pain tolerance) were assessed by neuromuscular monitor at the same time. Further study of influence factors such as gender, age, body mass index (BMI), left and right sides, degree of anxiety and depression, etc. were carried out on the pain perception. The results showed that 95% of the reference range of electrical perception threshold, pain threshold, pain tolerance were 4-7mA, 7 26mA and 15-60mA, respectively. The bilateral pain perception in males were significantly higher than that in females. There was no difference of effect between left and right sides. Age was positive related to pain perception, degree of depression was negative related to pain perception. BMI, degree of anxiety did not show association with pain perception. Therefore, gender, age and degree of depression were significantly related to electrical pain perception in healthy Chinese adults.
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physiopathology
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Electric Stimulation
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Pain Perception
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Pain Threshold
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Reference Values
6.The relationship between expression of VEGF in colorectal cancer and pathological factors
Ya MA ; Weihua YIN ; Guangling CAI ; Li CHEN
Chinese Journal of Primary Medicine and Pharmacy 2006;0(12):-
Objective To explore the correlation between expression of VEGF in colorectal cancer and pathological factors.Methods The expression of VEGF in 99 cases with colorectal cancer was examined by immunohistochemical staining.Results It showed that the expression of VEGF in colorectal cancer was correlated with depth of invasion and lymph node metastasis and was not correlated with tumor region,and histologic type.The frequency of positive cases in patients with lymph node metastasis was significantly higher than that in patients without lymph node metastasis(P
7.Hope for the patients with retinitis pigmentosa
Wei-jing, YIN ; Li-ya, WANG ; Wei, WANG ; Feng, PAN
Chinese Journal of Experimental Ophthalmology 2011;29(2):97-100
Retinitis pigmentosa (RP) is a hereditary disease characterized by the progressive loss of photoreceptor cells. Disease pathology primarily affects rod photoreceptor cells first but light-insensitive cone photoreceptor bodies can survivor longer. Delivered by adeno-associated viral vector or lentiviral vector, expression of microbial-type rhodopsin, channelrhodopsin-2 or archaebacterial halorhodopsin in the survived retinal cells can substitute for the native phototransduction cascade in mouse models of retinitis pigmentosa. It can also restore light sensitivity and activate all retinal cone pathways and drive sophisticated retinal circuit functions. Thus, expression of channelrhodopsins or halorhodopsin might be a potential strategy for the restoration vision of patients with RP.
8.Effect of a chloride channel inhibitor on proliferation and apoptosis of human trabecular meshwork cell
Yuan, YIN ; Ya-juan, ZHENG ; Ji-xue, WANG ; Wei, LIANG
Chinese Journal of Experimental Ophthalmology 2012;30(1):12-16
Background5-Nitro-2-(3-styrene-acrylic amine) benzoic acid ( NPPB),a chloride channel inhibitor,has a promoting effect on cell apoptosis in myocardial ischemia and reperfusion of domestic rabbit.The CIC chloride channel has been found in the ocular trabecular cells.However,the effect of NPPB on the shape and function of trabecular cells is unclear. Objective This study was performed to investigate the effect of NPPB on the proliferation,cell cycle progression and apoptosis of human trabecular meshwork cells.MethodsThe immortalized human trabcular cell strain was cultured,and logarithmic-phase cells were incubated in 96-well plates at a density of 1 ×106/ml.Different concentrations of NPPB (10,50,100 μ mol/L) were added to the medium,and the MTT assay was used to assess the growth and proliferation of the cells.Flow cytometry was used to evaluate the cell cycle.Then,100 mg/L 5-FU or 100 mg/L 5-FU + 100 μmol/L NPPB was used to induce cell apoptosis,which was assessed by Annexin V-PI.The membrane potential of mitochondria was examined using rhodamine 123 (△ψm).Results After 48 hours of treatment with NPPB,the abosorbency (A value) of the cells was gradually lowered with the increasing dose of NPPB,with significant differences among the 4 groups (F =7.230,P =0.006).Compared with the 10 μmol/L NPPB group,the A values were significantly declined in the 50 and 100 μmol/L NPPB groups (t =1.610,P =0.025 ;t =12.270,P =0.001 ).Forty-eight hours after exposure to NPPB,the percentage of cells in G0/G1 phase was increased and that in the S phase was decreased.The percentages of cells in different phases of cell cycle were significantly different in comparison with their control groups (without NPPB)( P<0.05 ).Twenty-four and 48 hours after the treatment with 100 mg/L 5-FU,the apoptosis rates of the cells were raised in the 100 mg/L 5-FU group and 100 mg/L 5-FU + 100 μmol/L NPPB group compared to the without NPPB group (t24h =2.130,P =0.023;t48h =4.810,P=0.011 ) ;while that in the 100 mg/L 5-FU+100 μmol/L NPPB group was higher than the 100 mg/L 5-FU group ( t24 h =1.980,P =0.037 ; t48 h =1.290,P =0.028 ),and the mitochondrial membrane potential was lowered ( t24h =1.580,P =0.029 ; F48 h =6.200,P =0.015 ).Conclusions NPPB suppresses the proliferation of human trabecular cells and promotes the cells to enter S phase via the G1/S check point.In addition,ClC might be involved in an anti-apoptosis mechanism through the internal mitochondrial pathway.
9.Effects of Shuxinwenban Granules on Expression of VEGF and MMP-9 in Rabbits
Pengcheng LI ; Lili LU ; Yong YIN ; Ya NIE
Chinese Journal of Information on Traditional Chinese Medicine 2014;(4):55-58
Objective To observe the anti-atherosclerosis (AS) mechanisms of Shuxinwenban granules by observing its effects on the serum level of MMP-9, the expression of VEGF and the formation of the plaques in rabbits. Methods Totally 40 healthy female and male rabbits were divided into control group, model group, Shuxinwenban granules group and Simvastatin group. Control group was treated with basic diet, and other groups were treated with high cholesterol diet for 12 weeks to make AS rabbit models. The treatment groups were given corresponding drugs by gavage for 4 weeks. The serum levels of MMP-9 in rabbits were detected by double antibody sandwich enzyme-linked immunosorbent method and the surface density of VEGF in the atherosclerotic plaques by immunohistochemical staining, at the same time, the pathological changes of the aorta and atheroclerotic plaques were observed. Results Compared with the model group, Shuxinwenban granules significantly decreased the serum levels of MMP-9, and the difference was statistically significant (P <0.01). Similarly, Shuxinwenban granules could significantly decrease the surface density of VEGF in atherosclerotic plaques, the difference was also statistically significant (P<0.01). Pathology showed that the intervention of Shuxinwenban granules decreased the area of atherosclerotic plaque, caused the plaque to smaller and thinner. Conclusion Shuxinwenban granules blocked the inflammatory response by inhibiting the expression of VEGF in atherosclerotic plaque and decreasing the levels of MMP-9 in serum, which lessened the formation of the atherosclerotic plaques.
10.Recovery Project of Computer Network Malfunction System under Unexpected Circumstances
Changfa ZHU ; Fenfen WANG ; Huifei LE ; Ya LIN ; Yueling YIN
Chinese Medical Equipment Journal 1993;0(06):-
Objective To develop a system failure recovery programs in order to prevent an accident of the hospital computer network system. Methods The network failure was divided into three grades according to its influence. The groups of network malfunction was set up and can immediately start the established program, take effective measures to prevent the situation expand and spread in the event of unforeseen circumstances. Results Through the emergency power supply program, the network route emergency program, cable emergency support program and sector emergency plan, the hospital information systems run normally. Conclusion The issue of large-area network information paralysis is effectively solved and improves the information technology capacity of the hospital.