1.Prediction of the fluctuating intervals of intraocular pressure readings in mild and medium myopia after photorefractive keratectomy
Huang, WU ; Longyan, YANG ; Yue, SONG
Chinese Journal of Experimental Ophthalmology 2001;19(1):62-63
ObjectiveTo predict the fluctuating intervals of intraocular pressure readings in mild and medium myopia after photorefractive keratectomy(PRK).MethodsThe intraocular pressure(IOP)readings of 383 eyes,of which spherical equivalent were less than-6.0 diopters(D)before and over 1 a after PRK,were measured with noncontact tonometer(NCT).The IOP data were analyzed with paired-sample t test,linear correlation and regression.Regression equation was used to predict the fluctuating intervals of IOP readings after PRK.ResultsThe IOP readings after PRK(10.38±2.08)mmHg were lower than those before PRK(15.43±2.74)mmHg.The difference of IOP readings between before and 1 a after PRK was significant (P<0.001).The postoperative IOP readings were related to those of preoperation (r=0.625,P<0.001)and the regression equation was Y=0.474X+3.064[X=IOP reading before PRK(mmHg),Y=IOP reading followed over 1 a after PRK(mmHg)].If IOP reading before PRK was X0,the 95% tolerant interval of IOP readings followed over 1 a after PRK was 0.5X0-0.1,0.5X0+6.3(mmHg).ConclusionIOP readings before PRK can be used to predict the fluctuating intervals of IOP readings in mild and medium myopia after PRK.
2.3-D finite element study on maxillary body protraction using implant anchorage
Yang QU ; Jian LIU ; Siwei YANG ; Yue HUANG
Journal of Practical Stomatology 2016;32(1):58-62
Objective:To explore the stress change rule of craniofacial bone suture and the interface of bone-implant against differ-ent strength and direction of protraction on the implant anchorage in alveolar bone.Methods:The original DICOMdata of 2-D image of craniofacial complex were obtained by high resolution CT scanning.3-D finite element models of craniofacial complex were devel-oped according to the DICOMdata.Forces of 1 -1 0 N inclined at 0 -60°to Frankfort horizontal plane in the anterior and inferior di-rections were respectively applied on the implant anchorage in the alveolar bone at 32 23 .Data of principle stress and Von Mises Stress of each mode of each simulaton was caculated.Results:The change rule of the effectiveness of different force value of protrac-tion in the same direction was the same in different stress zone;that of the same force value of the protraction in differente direction differed in different stress zone.When the protraction angle was less than 30°,the maxillary complex will spin up.In the 30°,the maxillary complex showed the forward growth.Between 40°-50°,the growth direction was the same with the protraction direction. When the protraction angle was more than 50°,the maxillary complex showed down spin.Conclusion:Protraction force of 1 -1 0 N at 30°-50°to Frankfort horizontal plane on implant anchorage in the alveolar bone at 32 23 can induce maxillary complex grow for-ward.
3.Changes of myocardial mitochondrial Ca2+ transport and effects of ATP on them in the early stage after severe burns.
Wan-Yi LIANG ; Zong-Cheng YANG ; Yue-Sheng HUANG
Chinese Journal of Applied Physiology 2002;18(2):205-206
Adenosine Triphosphate
;
pharmacology
;
Animals
;
Burns
;
metabolism
;
Calcium
;
metabolism
;
Female
;
Male
;
Mitochondria, Heart
;
metabolism
;
Rats
4.Effects of δ-opioid receptor agonist DADLE On primary cultured rat's cortical neurons following hypoxia injury
Liuqing YANG ; Yue FU ; Xiangshao FANG ; Zitong HUANG
Chinese Journal of Emergency Medicine 2009;18(1):34-37
Objective To study the protective effect of δ-opioid receptor agonist DADLE Oil hypoxia-in-duced injury of rat cortical neuronfl.Method Cortical neuron,q cultured for 8,lays were assessed by MAP2 im-munofluorescenee and randonly divided into hypoxia group(n=6),and DADLE preconditioning plus hypoxia group(n=6),normoxia group(n=6),and DADLE preconditioning plus normoxia group(n=6).The cells in hyoo O'oup Were cultured in a hyooxic incubator containing I%02,5%c02,and 94%N2 at 37℃.The cens in DADLE preconditioning groups Wel'preconditioned with 10 ttmol/L DADLE before culture.The cells in normoxia group were cultured in an incubator COntaining95%air and 5%c02 at 37℃.The survival rate ofneu.rOllS cultured for 72 hours was analyzed with hochest-33258 staining,and lactate dehydrogenase(LDH)release Wills detected.Glucose in the culture medium was detected to assess glucose/energy metabolism.The data of LDH re.1ease and ducose level were analyzed by A.NOVA.and cell survival rates wG:qanalyzed by Chi-square Tests.Re.vtats When cortical neurons were cultured for 8 davs,95%the cells were cortical neurous as assayed by MAP2 immunofluorescence·Cell survival rate was significantly higher in DADLE preconditioning Cus hypoxia group than in hypoxia group[(71.88±1.77)%vs.(43.58±3.07)%(P<0.05)].LDH release was significantly lower in DADLE preconditioning plus hypoxh group than in hypoxgroup[(3824.27±294.86)vs.(4516.59±605.02),P<0.05].Glucose level in the culture medium was significantly higher in DADLE preconditioning plus hypoxia group than in hypoxia group[(11.92-4-2.05)mmol/L vs.(9.88±0.71)mmol/L,P<0.051.Conclusions 6-opioid receptor agonist DADLE Can protect rat cortical neurons from hypoxia injury, which might be the mechanism of reducing glucose/energy metabolism in cortical neurons during the period of hypoxia.
5.Expression of interleukin-8 protein in villi and decidua of patients with recurrent spontaneous abortion
Fang SONG ; Fen HAO ; Shufen YUE ; Shiqi HUANG ; Meixia YANG
Acta Anatomica Sinica 2010;41(2):267-270
ObjectiveTo study the expression of interleukin-8 (IL-8) protein in villi and decidua of patients with recurrent spontaneous abortion(RSA). MethodsThe local and quantitative expressions of IL-8 in villi and decidua of 30 RSA patients were shown and measured by immunohistochemistry and Western blotting. Results IL-8 protein immunohistochemical signals were located in the chorioepithelium cytoplasm and decidual cells plasma in RSA group. While in control group the immunohistochemical staining was negative in decidul cells, but positive in glandular epithelium. The quantitative analysis of IL-8 protein by Western blotting, intensity of the immunostaining was higher in RSA group than that in the control group. Conclusion The higher expression of IL-8 in villi and decidua is releated to RSA, IL-8 might take part in the pathologic process of RSA.
7.Analysis on health risk behaviors and their influencing factors of 404 undergraduates
Yue YANG ; Jianping HUANG ; Chunjian LI ; Wei ZHAO ; Xun ZHUANG
Journal of Medical Postgraduates 2016;(2):191-195
Objective The health risk behaviors of undergraduates exist universally, which can induce other social problems. The aim of this study was to describe the present situation and analyze the influencing factors of health risk behaviors of 404 undergradu-ates. Methods Adolescent Health Related Behaviors Questionnaires were conducted in 404 undergraduates chosen from a University in Nantong by stratified cluster sampling method.Logistic regression and multiplicative interactive effects were adopted to analyze the influ-encing factors. Results Health risk behaviors were common among college students.In the past 30 days, 33.4%of students had rule-breaking behaviors in bicycle riding and 45.3%had rule breaking behaviors in walking.In the past 12 months, 2.7%of students had in-tentionally hurt themselves, 2.5%had suicidal inclination, 19.8%had smoking history, 69.3%had drinking history, 7.4%participa-ted in the gambling, 7.7%and 11.9%played video games and surfed online over 4 hours everyday, respectively, and 4.5%of students have had sex.In the past 30 days, 94.3% of students lost their weight through the unhealthy way, and 37.8%of students participated physi-cal exercise over 60 minutes for at least 3 days in the past 7 days.Lo-gistic regression indicated that male, higher grade and higher education level of the student′s mother were the risk factors of some health risk behaviors.Interactive effect was not found between the different influencing factors. Conclusion Health risk behaviors exist widely a-mong college students and more attention should be paid to risk behaviors of college students.Health behaviors should be trained among adolescents to improve their overall health level.
8.Clinical Observation of Acupuncture by Stages for Post-stroke Swallowing Dysfunction
Yanqing LU ; Yue LIU ; Fan HUANG ; Haitao YANG ; Weichuan KUANG
Shanghai Journal of Acupuncture and Moxibustion 2014;(8):702-705
Objective To observe the clinical efficacy of acupuncture by stages in treating post-stroke swallowing dysfunction. Method Sixty eligible patients were randomized into a staging-acupuncture group and an ordinary-acupuncture group, to respectively receive acupuncture by the stage of swallowing and ordinary acupuncture in addition to the basic treatments. Function estimation was conducted before and after intervention in both groups to compare the therapeutic efficacies.Result According to the water drinking test, the total effective rate was 83.3% in the staging-acupuncture group versus 53.3% in the ordinary-acupuncture group, and the difference was statistically significant by rank sum test (P<0.05), and the staging-acupuncture group was superior to the ordinary-acupuncture group especially in the pharyngeal stage (P<0.05); the differences were statistically insignificant in the oral stage and esophageal stage (P>0.05); regarding the video fluoroscopic swallowing study (VFSS), the staging-acupuncture group was significantly better than ordinary-acupuncture group in improving swallowing function (P<0.05).Conclusion Acupuncture by swallowing stages is effective in treating post-stroke swallowing dysfunction, especially in improving the swallowing function in pharyngeal stage.
9.Research on the relationship between recurrence of cryptogenic ischemic cerebrovascular disease and patent foramen ovale
Yue HUANG ; Xin MA ; Ming GUO ; Yang HUA
Chinese Journal of Neurology 2013;(2):117-121
Objective To evaluate the relationship between recurrence of cryptogenic ischemic cerebrovascular disease (CICVD) and patent foramen ovale (PFO),as well as to access the clinical significance of PFO in ischemic cerebrovascular disease.Methods Consecutive patients with CICVD aged 15 to 70 years who were hospitalized in Department of Neurology,Xuanwu Hospital Capital Medical University from January 2008 to March 2011 were prospectively investigated.Identified by transesophageal echocardiography,patients were divided into two groups with respect to outcome:PFO group and non-PFO group.The recurrence of cerebral ischemic events was compared between the two groups after neurological follow-up.Results A total of 91 patients were recruited,including 57 patients with PFO and 34 patients without PFO.The follow-up period of two groups was 695 (506,1142) d.The recurrence rate at 15 months in patients with PFO (24.5% (12/49)) was higher than those without PFO (6.9% (2/29),x2 =4.391,P =0.036).Cum hazard curve indicated that recurrence risk of cerebral ischemic events in patients with CICVD in PFO group was higher than that of patients in non-PFO group during the follow-up period (P =0.044).Cox model used for multivariate survival analysis indicated that PFO was a risk factor for cerebral ischemic event recurrence among patients with CICVD (OR =4.159,95% CI 1.178-14.689,P =0.027).Conclusions PFO is associated with increased recurrence risk of cerebral ischemia in CICVD patients.In addition,PFO may be a significant factor for ischemic cerebrovascular disease.
10.Osteogenic differentiation of adipose-derived stem cells transfected by lentivirus vector carrying LIM mineralization protein-1 and hypoxia-inducible factor-1alpha
Weimin PAN ; Min LIU ; Jianchang YANG ; Chunguang DUAN ; Yue HUANG
Chinese Journal of Tissue Engineering Research 2015;(32):5140-5147
BACKGROUND:LIM mineralization protein-1 (LMP-1) and hypoxia-inducible factor-1α (HIF-1α) as intracelular proteins can induce osteogenic differentiation and promote angiogenesis, respectively. Therefore, their combination is of great significance for effectively inducing the osteogenic differentiation of adipose-derived stem cels.
OBJECTIVE:To study the osteogenic differentiation of adipose-derived stem cels transfected by lentivirus vector carrying LMP-1 and HIF-1α.
METHODS:Reverse transcription-PCR technology was employed to clone LMP-1 and HIF-1α genes, and thegenes were cloned to lentivirus vectors pLVX-EF1α-DsRed-Hyg and pLVX-EF1α-IRES2-AcGFP1 to construct main lentiviral vectors pLVX-EF1α-DsRed-Hyg-RLMP-1 and pLVX-EF1α-IRES2-AcGFP1-RHIF-1α. Then, Lenti-X 293T cels were transfected with main vectors pLVX-EF1α-DsRed-Hyg-RLMP-1 and pLVX-EF1α-IRES2-AcGFP1-RHIF-1α, packaging plasmid and coated plasmid. After that, lentiviral vectors were packaged to transfect adipose-derived stem cels from rats that were obtained by tissue explants culture and enzyme digestion methods. At 3, 7, 14 days after transfection, reverse transcription-PCR technology was adopted to detect the expression of osteogeic genes, such as bone morphogenetic protein 2, Runx-2, alkaline phosphatase, osteocalcin as wel as to detect the expression of vascular endothelial growth factor.
RESULTS AND CONCLUSION:Lentiviral vectors pLVX-EF1α-DsRed-Hyg-RLMP-1 and pLVX-EF1α-IRES2-AcGFP1-RHIF-1α were effectively transfected into adipose-derived stem cels. Reverse transcription-PCR results showed that from the 7th day to the 14th day after lentivirus transfection, bone morphogenetic protein 2, Runx-2, alkaline phosphatase and osteocalcin al over-expressed. These findings indicate that the combination of LMP-1 and HIF-1α can enhance the osteogenic activity of adipose-derived stem cels.