2.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.
3.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.
4.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 .
5.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
6.Analysis of normal high-frequency ultrasonographic anatomical features of tarsal tunnel
Xing HUA ; Guangxing CHEN ; Yun HE ; Yanli GUO ; Xueyan DENG
Journal of Regional Anatomy and Operative Surgery 2014;(2):128-130
Objective To analyze the features of normal high-frequency ultrasonography of tarsal tunnel. Methods Forty volunteers (20 males and 20 females) were examined with high-frequency ultrasound (12 MHz). The tendons,nerve and blood vessels in tarsal tunnel were observed from short-axis and long-axis views dynamically. The areas of tarsal tunnel and posterior tibial nerve were measured and com-pared between the males and females. Results High-frequency ultrasonography depicted the anatomical structure of tarsal tunnel,and the tendons,nerve and blood vessels presented different sonographic features that were easy to differentiate. The area of tarsal tunnel: male (7.61 ±1.00) cm2,female (6. 61 ± 1. 07) cm2 (P <0. 01). The area of posterior tibial nerve: male (9. 59 ± 0. 75) mm2,female (8.91 ±0.74) mm2(P<0.01). Conclusion High-frequency ultrasonography can clearly show and accurately measure the tarsal tunnel structure. To be familiar with the normal ultrasonographic anatomy of tarsal tunnel will help to improve the efficacy of ultrasound diagnosis of tarsal tunnel abnormalities.
7.Study of esophageal motility in the cases with myasthenia gravis
Haiwei CHEN ; Qunyou TAN ; Bo DENG ; Wei GUO ; Ruwen WANG
Chinese Journal of Thoracic and Cardiovascular Surgery 2016;32(4):234-237
Objective To study the features of esophageal motility in the cases with myasthenia gravis(MG).Methods 15 healthy controls and 45 patients with MG were tested by using a low-compliance four-lumen hydraulic infusion system,respectively.Focused on the following parameters:PP,UESP,UEP,MEP and MERP.Results There were significant differences of the parameters in between MG cases and healthy controls PP (73.24 ± 31.40) mmHg (1 mmHg =0.133 kPa) vs.(103.78±29.47) mmHg,P=0.002;UESP(41.75 ±21.04) mmHg vs.(60.59 ±17.97) mmHg,P=0.003;UEP (56.63 ±30.26) mmHg vs.(78.98 ±30.14) mmHg,P =0.016;MEP(53.96 ±23.25) mmHg vs.(75.11 ±23.75) mmHg(P =0.004).However,MERP of MG cases or healthy controls seemed to be similar[(-7.76 ± 5.94) mmHg vs.(-7.58 ± 5.76) mmHg,P =0.91).Additionally,the above-mentioned parameters in the cases with generalized myasthenia gravis or dysphagia were significantly different compared with other subtypes or healthy controls (P < 0.01).However,there were no significant differences of the parameters in between ocular MG and healthy controls,or in between MG with and without thymoma.Conclusion The upper and middle part of esophageal motility dysfunction is very common in MG cases,especially in those with dysphagia or generalized MG,characterizing by the declined pressure.Manometry in MG cases can help us classify the subtypes of MG and verify their esophageal motility functions.
8.Omarigliptin: A new kind of long acting DPP-4 inhibitor
Hongnan CHEN ; Ying DENG ; Xiujuan GUO ; Guodong HUA
Drug Evaluation Research 2017;40(1):133-137
Diabetes is a kind of metabolic disease characterized by hyperglycemia The oral hypoglycemic agents used currently are required to take every day,which brings inconvenience to patients.Omarigliptin is a small molecule DPP-4 (depeptidyl peptidase-4) inhibitor.The drug is developed by the Merck Co,mainly for the treatment of type two diabetes.The drug only need to be taken once a week,so as to improve the patient's compliance and adherence,thereby improving the therapeutic effect.This article introduces the information of omarigliptin from the aspects of synthesis,pharmacology,pharmacokinetics,and clinical research,which provides valuable information for pharmaceutical workers.
9.Effect of Artesunate Tablet on Tertian Malaria: A Study of 24 Cases
Guangqian LI ; Xuelong DENG ; Renjun CHEN ; Yuzong SONG ; Xingbo GUO ;
Traditional Chinese Drug Research & Clinical Pharmacology 1993;0(02):-
24 patients suffering from tertian malaria were treated with 600 mg of artesunate tablet as a total dose in a 5-day course. The result showed that all patients were clinically cured with symptoms and signs subsided quickly. Defervescence and parasite clearance times were 19. 9?15.8 and 56. 8?17. 4 hours respectively. The recrudescent rate was 54.2% within 28 days.
10.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.