2.Impacts of Anisodamine(654-2) Combined with Exogenous Pulmonary Surfactant on Tomor Necrosis Factor (TNF-?),Structure Changes of Lung Tissue During Pig's Lung Ischemic-reperfusion Injury
Youhua DENG ; Zhengheng GUO ; Hongming CHEN
Journal of Chinese Physician 2001;0(04):-
Objective To study the effect of anisodamine (654-2) combined with exogenous pulmonary surfactant (PS) on tumor necrosis (TNF- ?) ,structure of lung tissue changes during pig's lung ischemic-reperfusion injury. Methods 24 pigs ,approximately 45-day-old, were randomly divided into four groups: a control group,a 654-2 group,a PS group and a 654-2 plus PS group. The TNF-? concentration of every lung was analysed with ELISA methods at the point of pre-clamping right pulmonary aortery,post-clamping 60',90'(opening),post-unclamping 60',90',120'.Finally ,we examined the pathologic changes of the lungs. Results After clamping right pulmonary artery , TNF-? concentrations in every experimental groups were significantly lower than that of the control group (all P
3.Effect of PM2.5 Intratracheal Instillation on Heart Rhythm in SHR Rats
Furong DENG ; Xinbiao GUO ; Wei CHEN
Journal of Environment and Health 1993;0(03):-
Objective To study the acute effects of PM2.5 on the heart rhythm of spontaneously hypertensive rats(SHR)and the mechanism.Methods Twenty-eight male spontaneously hypertensive rats(SHR)were randomly divided into four groups.PM2.5 was administered by intratracheal instillation at the doses of 0 mg/kg,7.5 mg/kg,15 mg/kg and 30 mg/kg respectively.ECGs were monitored at 30 min,1 h and 24 h later.Results The numbers of the rats with arrhythmia in all groups increased at 30 min after treatment.At 1 h after treatment,in control group the rats recovered,but in PM2.5 groups abnormal ECGs was still showed.However,ECGs of all groups became normal 24 h later.As shown by laser scanning confocal microscope(LSCM),the expression of Cx43 in the heart tissue of rats in 15 mg/kg and 30 mg/kg groups significantly decreased compared with the control group.There was no significant change in content of MDA and SOD in the heart tissue of PM2.5 treated rats.Conclusion PM2.5 exposure through inhalation may induce arrhythmia in SHR rats and the downregulated expression of Cx43 may play an important role in the pathogenesis.
4.A study on posterior microendoscopic discectomy to treat lumbar disc herniation and lumbar spinal stenosis
Tao GUO ; Yong DENG ; Dengjun CHEN
Chinese Journal of Minimally Invasive Surgery 2001;0(06):-
Objective To evaluate the application value of Microendoscopic Discectomy (MED) in the treatment of lumbar disc herniation and lumbar spinal stenosis. Methods 188 cases of lumbar disc herniation and lumbar spinal stenosis were treated by MED, 38 cases of them performed lateral recess decompression. Results The mean follow-up period was 6.9 months. excellent and good therapeutic result rate was 97.4% (Macnab's standard). Conclusions MED in the treatment of lumbar disc herniation and lumbar spinal stenosis has short-term satisfactory therapeutic efficacy.
5.Relationship between cervical lesions and human papillomavirus genotype infection among the women in Northeast region of Sichuan province
Jiankang DENG ; Menglan CHEN ; Xiaolan GUO
Chongqing Medicine 2014;(36):4914-4916
Objective To investigate the relationship between different genotype infection and multiple infection of human papil‐lomavirus(HPV) with cervical lesions among the women in Northeast region of Sichuan province .Methods The cervical exfoliated cells in 213 women with HPV infection were performed the HPV genetype detection by the gene chip technique and the cervical le‐sion degree was also detected .Results 213 cases of cervial lesion with positive HPV infection were divided into five groups accord‐ing to pathological examination results :chronic inflammation(110 cases) ,cervical intraepithelial neoplasia(CIN) Ⅰ (21 cases) ,CINⅡ (26 cases ) ,CIN Ⅲ (28 cases ) and cervical cancer (28 cases) .The high risk HPV infection was dominated by the genotype HPV16 ,58 ,33 ,18 and the low risk HPV infection was dominated by the HPV genotype 11 ,6 .The HPV genotype HPV11/6/16 , HPV16/33 ,HPV16/6 ,HPV16/58 and HPV16/18 infection were most common in the chronic cervial inflammation ,CIN Ⅰ ,CINⅡ ,CIN Ⅲ and cervical cancer groups .The constituent ratio of different cervical lesions had statistical difference between the simple high risk HPV infection group and the low risk HPV infection group (χ2 = 41 .01 ,P< 0 .01) .The simple genotyps and the mixed genotype HPV infection had no influence on the cervical lesion degree(χ2 = 5 .74 ,P> 0 .05) .Conclusion HPV 16 ,58 ,33 ,18 are the main high risk HPV genotypes among women in the northeast region of Sichuan province ,HPV 16 is significantly related with the cervial lesion degree ;multiple HPV genotype infection does not promote the progress of cervical lesion .
6.Quantitative evaluation of the left ventricular systolic dyssynchrony and its significance in patients with heart failure after myocardial infarction by real-time three-dimensional echocardiography
Qing DENG ; Qing ZHOU ; Limin ZHU ; Jinling CHEN ; Ruiqiang GUO
Chinese Journal of Ultrasonography 2010;19(8):662-665
Objective To quantitatively assess the left ventricular systolic dyssynchrony in patients with varied degrees of chronic congestive heart failure after old myocardial infarction(OMI) by real-time three-dimensional echocardiography(RT-3DE) and investigate the clinical value of the systolic dyssynchrony index(SDI). Methods Forty patients with congestive heart failure after OMI (infarction group) were divided into the severe dysfunction group (LVEF ≤35 %) and the mild dysfunction group (35 % < LVEF<50%) ,and 30 normal subjects served as the control. RT-3DE was performed on all subjects to obtain the 17-segmental time-volumetric curves and global systolic function. SDI changes in above groups and the correlation between SDI and LVEF were analyzed. Results The SDI of the infarction group was significantly higher than that of the normal control group ( P <0. 01 ). The SDI of the severe dysfunction group was significantly higher than that of the mild group (P<0.01). SDI and LVEF were negatively correlated ( r = -0.84, P <0. 01 ). The dyssynchrony rate in the infarction group was 85 %,in the severe dysfunction group was 100%, in the mild group was 75%. Conclusions Left ventricular systolic dyssynchrony is prevalent in patients with OMI, and it is negatively correlated with the LVEF. SDI is a sensitive indicator in assessing left ventricular systolic dyssynchrony. RT-3DE has a unique advantage in the evaluation of the left ventricular systolic dyssynchrony,especially in the patients with myocardial infarction.
8.Involvement of MMP-2 in adriamycin resistance dependent on ERK1/2 signal pathway in human osteosarcoma MG-63 cells.
Ye, REN ; Fengjing, GUO ; Anmin, CHEN ; Rui, DENG ; Jiang, WANG
Journal of Huazhong University of Science and Technology (Medical Sciences) 2012;32(1):82-6
Matrix metalloproteinase-2 (MMP-2) level and the ERK1/2 signal pathway are dependent factors for the growth and metastasis of cancer. However, the impact of MMP-2 in combination with ERK1/2 in tumor patients with drug resistance is unknown. To determine the relationship between MMP-2 and the ERK1/2 signal pathway, we established an adriamycin (ADM)-induced MG-63 (ADM-MG-63) cell line. With the increase of the ERK1/2 pathway blocker PD98059, we detected the expression levels of MMP-2 and p-ERK1/2 by Western blot in ADM-MG-63 cells. In ADM-MG-63 cells transfected with MMP-2-siRNA, the expression of ERK1/2 was detected for understanding the function of the ERK1/2 signal pathway. Three siRNAs for MMP-2 (MMP-2-siRNA) were designed, and the optimal one was selected and tested at different time points of 24, 48 and 72 h. Under an ADM-induced condition, ADM-MG-63 cells were finally stable living in the medium of ADM (200 ng/mL). PD98059 could effectively suppress the expression levels of p-ERK1/2 and MMP-2. When the MMP-2 was silenced by using MMP-2-siRNA, the expression of p-ERK1/2 was enhanced. It is concluded that MMP-2 may be involved in ADM resistance dependent on ERK1/2 signal pathway, suggesting interference in ERK1/2 may be a new method of targeted therapy for tumor resistance.
9.Effect of Yiqixue Buganshen Recipe on the level of serum VEGF in high-risk patients with ovarian hyper- stimulation syndrome
Xiaoyan CHEN ; Weimin DENG ; Xinyu GUO ; Jinyu ZHANG
The Journal of Practical Medicine 2017;33(16):2788-2791
Objective To investigate the clinical effect of the Yiqixue Buganshen Recipe(YBR)on the level of serum VEGF in high-risk patients with OHSS. Method 298 infertile women with high-risk OHSS in the reproductive centre of our hospital from June to November ,2016 were enrolled into the traditional Chinese medicine (TCM) group (n = 148) and the control group(n = 150). 145 infertile women without high-risk OHSS were enrolled into the normal group. All the patients received the long protocol treatment ,and patients in the TCM group received the YBR treatment. Results Patients have higher quality embryo rate ,lower moderate and more severe OHSS rate in the TCM group compared with the control group(P<0.05). Patients in the normal group have lower serum VEGF compared with patients in the other 2 groups on the all three days. Patients in the TCM group has lower serum VEGF on the day of embryo transfer compared with patients in the control group(P<0.05). Conclusions The increment of the serum VEGF level is closely related to OHSS. The YBR may reduce the rate of moderate and severe OHSS by reducing the serum VEGF level on the day of embryo transfer ,which may prevent the moderate and severe OHSS of the high-risk patients.
10.Efficacy and Safety Evaluation of Different Doses of Atorvastatin in the Treatment of Chronic Subdural He-matoma
Yu ZHOU ; Chun CHEN ; Fabin DENG ; Yuanbin LI ; Chuan GUO
China Pharmacy 2017;28(5):663-666,667
OBJECTIVE:To observe the clinical efficacy and safety of different doses of atorvastatin in the treatment of chron-ic subdural hematoma(CSDH). METHODS:One hundred and tweaty-eighie CSDH patients selected from our hospital during Jun. 2013-May 2015 were divided into observation group(n=62)and control group(n=66)in accordance with random number table. Both groups were given conventional treatment of brain cell nutrition. Control group received Atorvastatin tablet 20 mg,po,qd;observation group received Atorvastatin tablet 40 mg,po,qd. Both groups were treated for 6 months. Clinical efficacy,CSS and ADL score,hematoma volume,the levels of serum inflammatory factors (hs-CRP,MMP-9,IL-6,TNF-α) were observed in 2 groups. ADR was recorded during treatment and recurrence rate was also recorded. RESULTS:2 patients withdrew from observa-tion group and 6 from control group. Finally,120 patients met the criteria were included,with 60 cases in each group. Total re-sponse rate of observation group(88.3%)was significantly better than that of control group(73.3%),with statistical significance (P<0.05). After 1,3,6 months of treatment,CSS score,hematoma volume,the serum levels of hs-CRP,MMP-9,IL-6 and TNF-α in 2 groups were significantly decreased,while ADL score was increased significantly;the improvement of above indexes in observation group was significantly better than in control group,with statistical significance(P<0.05). There was no statistical significance in the incidence of ADR between 2 groups(P>0.05). The recurrence rate of control group(13.3%)was significantly higher than that of observation group(3.3%),with statistical significance(P<0.05). CONCLUSIONS:Daily dose of shows ator-vastatin 40 mg better therapeutic efficacy and lower recurrence rate in the treatment of CSDH with good safety.