1.Comparative study on the effects of collagenase inhibitor in different eye drops
Yuanping SHEN ; Luo ZHANG ; Zheng HU
Recent Advances in Ophthalmology 2000;20(6):426-427
Objective To investigate, compare and filtrate the collagenase inhibitor effects among six kinds of eye drops for clinical use.Methods The collagenase inhibitor’s effects were detected by rat's collagen and collagenase with comassie brilliant blue colorimetric method.Results The inhibitting collagenase effects among six kinds of eye drops were different: the effect of cartopril was the strongest;the acetylcysteine and sodium edetate were more strong and the sodium citrate, sodium hyposulfite and tetracycline were less strong.Conclusion 0.5g*L-1cartopril eye drops has stronger efficacy to inhibit collagenase, with less side effect or stimulation,more convenient resource and preparation than other eye drops.
2.Investigation of Indoor Air Radon Concentration in Colleges in Guangzhou
Yuanping ZHANG ; Zhanyang CAI ; Huiyi HUANG
Journal of Environment and Health 2007;0(10):-
Objective To investigate and analyze the recent condition of the indoor air radon concentration in the colleges in Guangzhou and to find the source of radon in the teaching environments and to make the effective measure to reduce indoor air radon pollution. Methods The radon concentration was determined with the instantaneous and accumulate methods. The effecting factors were analyzed. Results The arithmetic average of radon concentration was about (34.2?21.17) Bq/m3. The indoor radon concentration in the newly decorated buildings was about (36.6?25.5) Bq/m3 which was higher than that in the old ones (20.1?8.48) Bq/m3. The indoor radon concentration in the night was higher than that in the daytime. In winter it was about (54.2?15.11)Bq/m3 which was higher than that (17.3?7.31) Bq/m3 in summer. Conclusion The radon concentration may change as the outside condition changes, the radon concentration in the teaching environment in Guangzhou is not over the standard limit.
3.CAD fabrication of the mandible All-on-4 implant photoelastic model
Qi WANG ; Shaofeng ZHANG ; Shizhu BAI ; Yuanping YI ; Zhenzhen ZHANG
Journal of Practical Stomatology 2015;(2):225-229
Objective:To explore the method of the establishment of edentulous mandible All-on-4 implant photoelastic model with various distally tilted implants by computer-aided design(CAD).Methods:The edentulous mandible specimen was scanned by CT. Three-dimensional models of the mandible consisting of implant location were reconstructed and edited with Mimics and Geomagic Stu-dio software.Each of the four models had four implant sockets in the interforaminal area.In the first model,the bilateral distal im-plants were placed vertically.In the other models,the posterior implants were respectively inclined by 1 5°,30°and 45°distally.The four models were manufactured by RP and then the All-on-4 photoelastic models were made by traditional ways.Results:The ob-tained ethoxyline resin models featured bright surface,homogeneous structure,faintly yellowish,high optical sensibility,precision im-plants location and with no natural stress.The model offered a good experimental basis for the stress measurement.Conclusion:The method of fabricating ethoxyline resin models by CAD is reproducible,which simplifies the operating process.
4.Effect of ghrelin on proliferation and mitofusin-2 expression of human aortic smooth muscle cells
Yongming HE ; Mingbao SONG ; Jianbo HU ; Yuanping ZHANG ; Youmei LI
Chongqing Medicine 2017;46(15):2034-2036
Objective To investigate the effects of ghrelin on proliferation of vascular smooth muscle cells(VSMC)and the expression of mitochondrial fusion 2(Mfn-2)in cultured human aortic smooth muscle cells(HASMCs).Methods HASMCs were cultured in vitro,treated with different concentrations(10-9,10-8,10-7,10-6,10-5 mol/L)ghrelin or 10-6 mol/L ghrelin for different time(0,6,12,18,24 h).Subconfluent HASMCs at passage 4-6 were used in experiments.MTT essay was used to investigate the effect on proliferation of HASMCs.RT-PCR and Western blot were used to analyse the expression of Mfn-2.Results 10-7-10-5 mol/L ghrelin inhibited the proliferation of HASMCs,and the inhibitory effect of concentration of 10-6 mol/L was the most obvious(P<0.01).Ghrelin inhibited the proliferation of HASMCs in 6-24 h,and it reached the peak at 24 h(P<0.01).10-6 mol/L ghrelin significantly increased the expression of Mfn-2 mRNA and protein(P<0.01).The up-regulation of 10-6 mol/L ghrelin on Mfn-2 mRNA and protein expression reached the peak at 18 h(P<0.01).Conclusion Ghrelin might inhibit the proliferation of HASMC by up-regulating the expression of Mfn-2.
5.Feasibility study of tricuspid inflow E-wave peak velocity on evaluating severity of tricuspid regurgitation
Yuanping ZHANG ; Xiaoqing LI ; Xiaohui ZHAO ; Chun LI ; Rongsheng RAO
Journal of Regional Anatomy and Operative Surgery 2016;25(6):413-415
Objective To demonstrate the possibility when discriminating between severe and nonsevere tricuspid regurgitation by E-wave velocity in tricuspid flow.Methods The peak velocity of the tricuspid inflow E-wave was measured in 107 patients,who were divided into mild group(n =39),moderate group(n =42)and severe group(n =26)according to the degree of tricuspid regurgitation(TR).Results Peak E-wave velocity of mild group,moderate group and severe group was (48.6 ±13.8)cm/s,(47.4 ±11.7)cm/s,and (78.3 ±26.1)cm/s, respectively.Mean E-wave velocity of mild group and moderate group were similar,which were lower than that of severe group (P <0.01).A peak E-wave velocity of over 62 cm/s had a sensitivity of 71% and specificity of 92% for the detection of severe TR.Conclusion Increased peak tricuspid E-wave velocity is associated with severe TR and thus can be used as a simple measure of TR grade.
6.A controlled clinical study of the effectiveness of extracorporeal shock wave therapy and joint mobilization technique in the treatment of periarthritis of shoulder
Gang WANG ; Deqing ZHANG ; Yuanping LIN ; Jianyong HE
Chinese Journal of Physical Medicine and Rehabilitation 2003;0(02):-
Objective To observe and compare the effects of extracorporeal shock wave therapy(ESWT) and that of joint mobilization technique on periarthritis of shoulder. Methods Eighty-two patients were divided into two groups randomly, a treatment group (n=42) treated with extracorporeal shock wave therapy, and a control group (n=40) treated with joint mobilization technique. All the patients were evaluated with Visual Analogue Scale (VAS) and Constant-Murley Scale(C-M scale) before and half a month after the treatment. Results After treatment the results obtained with the use of VAS Scale and C-M Scale (only ADL and ROM) were significantly different in two groups when compared with those before the treatment (P
7.Effect of Integrative Nursing Intervention on Chronic Heart Failure of Elderly Patients
Li LI ; Jianying ZHONG ; Yuying LIAO ; Qin GUO ; Yuanping ZHANG
Chinese Journal of Rehabilitation Theory and Practice 2010;16(11):1086-1087
ObjectiveTo investigate the effect of integrative nursing intervention on chronic heart failure of elderly patients. Methods80 elderly patients with chronic heart failure were divided into integrative nursing intervention group (n=40) and the control group (n=40). All the patients were treated with routine treatment and nursing. The patients of integrative nursing intervention group were given prescient nursing, mental nursing and exercise rehabilitation. ResultsThe total effective incidence of integrative nursing intervention group was more than that of the control group (P<0.05), and the 6 minutes walk test was longer (P<0.05).ConclusionIntegrative nursing intervention is benefit to the recovery of the elderly patients with chronic heart failure.
9.Clinical analysis of chronic hepatitis B with concurrent hepatitis e antigen and antibody during antiviral therapy
Xinxin WANG ; Junjie WANG ; Hao ZHANG ; Nianhuan YANG ; Guosheng YUAN ; Jian ZHANG ; Yuanping ZHOU
The Journal of Practical Medicine 2015;(11):1778-1780
Objective To evaluate the clinical significance of chronic hepatitis B (CHB) with concurrent hepatitis e antigen (HBeAg) and antibody (anti-HBe) during antiviral therapy. Methods A total of 115 CHB patients with concurrent HBeAg and anti-Hbe detection during antiviral therapy were enrolled in this retrospective study. All patients received pegylated-IFN-alpha-2a (Peg-IFNα-2a, n = 50) or entecavir (ETV, n = 65) for antiviral treatment. Their biochemical virological and serological response and clinical outcome were detected and analyzed. Results Among the patients treated with Peg-IFNα-2a, 31 (62.0%) achieved HBeAg seroconversion and 6 (12.0%) achieved HBsAg seroconversion at the end of treatment. About 35.4% of patients, who received ETV, achieved HBeAg seroconversion and none of them achieved HBsAg seroconversion at the end of treatment (P < 0.05). Conclusion High rates of HBeAg seroconversion and HBsAg loss could be achieved in CHB patients, with co-existence of HBeAg and anti-HBe, who received Peg-IFNα-2a, but not ETV therapy.
10.Short term bleeding risk assessment of bivalirudin combined with ticagrelor in patients with STEMI during emergency PCI
Jianbo HU ; Yuanping ZHANG ; Yongming HE ; Xiaoqing LI ; Yi ZHANG ; Xiaoyan LIU
Chongqing Medicine 2016;45(21):2933-2935
Objective To observe the bleeding risk of bivalirudin combined with ticagrelor in patients with acute ST segment elevation myocardial infarction (STEMI) during emergency percutaneous coronary intervention (PCI) .Methods A retrospective a‐nalysis of 458 patients with STEMI who underwent emergency PCI in our hospital was performed .All patients were divided into the bivalirudin group (217 cases) and the standard heparin group(241 cases) according to the anticoagulation scheme during PCI opera‐tion .All patients administered the dual antiplatelet therapy of aspirin 100 mg and ticagrelor 180 mg before surgery .Then ,all pa‐tients were administered dual antiplatelet therapy of aspirin 100 mg once daily and ticagrelor 90 mg twice daily for a long time .The clinical data were analyzed and the bleeding situation within 72 h after PCI was compared between the two groups .Results There were no statistically significant differences in gender ,age ,body mass ,smoking proportion ,occurrence rates of accompanying and complicating diseases ,RBC count ,platelet count ,Hb and PT before PCI between the two groups(P>0 .05) .The bleeding incidence rate in the bivalirudin group was significantly lower than that in the standard heparin group ,and the difference was statistically sig‐nificant (χ2 =8 .455 ,P<0 .05) .Conclusion Compared with standard heparin ,on the basis of ticagrelor use ,giving bivalirudin dur‐ing PCI process can reduce the bleeding risk of patients .