1.Relationship between angiontensin Ⅱ type2-receptor gene polymorphism and essential hypertension in men
Basic & Clinical Medicine 2010;30(3):280-283
Objective To investigate the relationship between AT2-receptor 1675A/G gene polymorphism and essential hypertension in men.Methods The 113 EH male patients and 101 controls were born in Jining.The 1675A/G polymorphism of AGTR2 gene was detected by PCR,HRM and gene sequencing.Results There was difference in genetypes(AA,GG) distribution and allele frenqency of AGTR2 1675A/G between male EH and control group (P<0.05).Genotypes(AA,GG) distribution in EH group[56(49.6%) and 57(50.4%)]are significantly higher than that in control group [32 (31.7%) and 69 (68.3%)](P<0.05).Allele frenqency in EH group[A:112(49.6%) and G:114(50.4%)]is significantly higher than that in control group[64(31.7%) and 138(68.3%)](P<0.05).Conclusion The 1675A/G polymorphism of AGTR2 gene may be associated with male EH in Jining area,Shandong province.
2.Naloxone or vagotomy does not influence centrally octreotide-induced inhibition of gastric acid secretion in rats.
Feng, GAO ; Xiufen, HU ; Dongsheng, CHEN
Journal of Huazhong University of Science and Technology (Medical Sciences) 2006;26(4):432-5
To investigate the effect of preceding naloxone injection into the third cerebroventricle or acute subdiaphragmatic vagotomy on the gastric acid secretion inhibited by the somatostatin analogue octreotide given by intracerebroventricular (icv) injection. The third ventricles were cannulated in male Wistar rats anesthetized with sodium pentobarbital. One week later, acute gastric lumen perfusion was carried out. The gastric perfusion samples were collected every 10 min and were titrated by 0.01 mol/L NaOH to neuter. On the basis of subcutaneous injection of pentagastrin (G-5, 160 micro, g/kg), icv injection of physiological saline (group A, n = 20), icv injection of octreotide (0.05 micro g) (group B, n = 20), icv injection of naloxone (2.5 micro g)+octreotide (0.05 micro g) (group C, n = 20), acute subdiaphragmatic vagotomy+ icv injection of physiological saline (group D, n = 20), or acute subdiaphragmatic vagotomy+icv injection of octreotide (0.05 micro g) (group E, n = 20) were conducted. Before and after icv injection, 1-h total acid output (TAO) was determined and compared. The experimental data were expressed in change rate (%) of TAO. The change rates (%) of TAO were 4.60% in group A, -20.35% in group B, -18.06% in group C, 5.01% in group D and -21.59% in group E, respectively. Comparison of group B or C versus group A showed that P < 0.01 and comparison between the group E versus group D showed that P < 0.01. Whereas the differences between group C and group B, group E and group B were not statistically significant (P > 0.05 for all). The results indicate that the central inhibition of gastric acid secretion by octreotide may not be mediated by the endogenous opiate substance or its receptor and the peripheral pathway for icv injection of octreotide to suppress gastric acid secretion is via extra-vagus route.
3.Radiofrequency ablation for the treatment of paroxysmal atrial fibrillation in complicated cases
Xu LIU ; Xinhua WANG ; Dongsheng GAO
Chinese Journal of Interventional Cardiology 1996;0(04):-
Objective This study was aimed to investigate the methodology of radiofrequency ablation for paroxysmal atrial fibrillation (PAF) in complicated cases Methods 130 cases (87 males) with the average age of 56 years were enrolled consecutively Each patient was diagnosed PAF by Holter and ECG After routine transseptal procedure and cannulation, retrograde pulmonary venography was taken to show the anatomic morphology of all pulmonary veins (PVs) Under the guidance of Lasso circular mapping catheter, all cases underwent electrical isolation for four PVs using the saline irrigated ablation catheter Results (1) By venography,21 PVs (16 2%) were found to have enormously dilated ostia in 21 out of 130 cases 5 PVs (3 8%) had left common trunks 3 PVs (2 3%) had right common trunks In 6 cases right PVs were found to have multiple bifurcated ostia, and the prevalence rate was 4 7% (2) A total of 341 PVs were targeted for segmental ablation in 130 cases Complete isolation was failed in 29 PVs, including 11 PVs with dilated ostia Among the 29 PVs, 14 were left superior PVs (LSPVs), 8 were left inferior PVs (LIPVs), 5 were right inferior PVs (RIPVs), and 2 were right superior PVs (RSPVs) Conclusion The anatomical variants of PV was the main cause of complicating radiofrequency ablation in patients with PAF
4.Operation modes for proximal femur tumor with pathological fracture
Shutu GAO ; Dongsheng LI ; Zhiyong ZHANG
Orthopedic Journal of China 2006;0(07):-
[Objective]To explore the operation modes and outcomes of proximal femur tumor with pathological fracture. [Methods]There were 46 cases to be reviewed from october 2001 to June 2007,all were respectively treated by 6 surgery methods:curettage and bone grafts after fracture healing by external fixation in 7 cases (Group A),bone transplantation and internal fixation in 11 cases (Group B),fibula grafting with blood vessel after curettage in 6 cases (Group C),bone cement plugging and interlocking intramedullary nailing after curettage in 8 cases (Group D),tumor segment resection and endoprosthesis in 12 cases (Group E),and hip joints disarticulation in 2 cases (Group F).[Results]According to Enneking evaluation standard in limbs function,the excellent to good rate was 85.7% in Group A,88.8% in Group B with 9 cases followed up,83.3% in Group C,66.6% in Group D with 5 patients died,75% in Group E with 5 patients died and 1 case recurrence.[Conclusion]Proper operation methods of the proximal femur depend on the basis of tumor characteristics,the degree of damage and fracture displacement. Benign tumor could be treated by tumor curettage and bone grafts,femoral neck fracture by rigid fibula graft,malignant tumor by prosthesis replacement or interlocking intramedullary nails.
5.Clinical efficacy of L-carnitine in treating diabetic peripheral neuropathy
Hongli WANG ; Dongsheng FAN ; Tianpei HONG ; Hongwei GAO
Chinese Journal of Endocrinology and Metabolism 2008;24(6):645-646
One hundred patients with type 2 diabetic neuropathy were divided into L-carnitine group and control group with 50 eases in each group. Data showed significant improvements in clinical symptoms scores, visual analogue scale and quantitative sense test after 16-week L-earnitine treatment (all P < 0.05). The study demonstrates that L-earnitine has affirmative effect on patients with diabetic neuropathy, especially in alleviating pain.
6.The effect of trimetazidine on alcoholic cardiomyopathy and plasma brain natriuretic peptide
Meng ZHANG ; Yuchuan DAI ; Ran ZHANG ; Lijun GAN ; Dongsheng GAO
Chinese Journal of Postgraduates of Medicine 2013;(1):19-22
Objective To observe the effect of conventional therapy plus trimetazidine on alcoholic cardiomyopathy (ACM) and plasma brain natriuretic peptide (BNP).Methods Eighty-six cases of ACM patients were divided into control group and observation group by random digits table method with 43 cases each.Control group was treated with conventional therapy,while observation group was added trimetazidine.Course of treatment was 3 months.The left ventricular ejection fraction (LVEF),left ventricular end diastolic diameter (LVEDD),6 min walk distance,plasma BNP before and after treatment and the efficiency in two groups was observed and compared.Results LVEF,LVEDD,6 min walk distance,BNP before treatment in control group were respectively (37.2 ±7.4)%,(57.6 ±7.4) mm,(312.8 ±21.6) m,(846.2 ±63.7)μg/L,and the indicators in observation group were respectively (38.5 ±8.1)%,(57.1 ±6.8) mm,(316.5 ± 23.9) m,(857.6 ± 61.4) μ g/L.All indicators between two groups was no statistically different (P>0.05).LVEF,LVEDD,6 min walk distance,BNP after treatment in control group were respectively (43.5 ±8.6)%,(54.3 ± 6.4) mm,(511.6 ± 26.7) m,(679.4 ± 51.3) μg/L,and there were significant difference compared with those before treatment (P < 0.05).LVEF,LVEDD,6 min walk distance,BNP after treatment in observation group were respectively (51.6 ± 9.2)%,(51.2 ± 6.3) mm,(579.3 ± 25.1) m,(536.5 ± 50.6)μ g/L,and there were significant difference compared with those before treatment (P < 0.05).There were significant difference in LVEF,LVEDD,6 min walk distance and BNP after treatment between two groups (P < 0.05).The total effective rate in observation group was 90.7% (39/43),which was significantly higher than that in control group [72.1% (31/43)] (x2 =4.914,P < 0.05).Conclusion Adding trimetazidine on the basis of conventional therapy can improve the cardiac function and myocardial remodeling of ACM patients and improve clinical efficacy.
7.Correlation analysis of methylation status of UNC5C gene promoter with colorectal cancer UNC5C
Dongsheng SUN ; Chunyan GAO ; Zhigang WANG ; Ning LIU ; Fengjie JIA
Chongqing Medicine 2015;(11):1487-1489
Objective To investigate the correlation between methylation status of UNC 5C gene promoter with colorectal cancer UNC5C .Methods 54 cases of sporadic colorectal cancer and related normal mucosal tissue ,as well as 6 colon cancer cell lines and fiber cell lines(FCL) in the oncology department of the Kailuan General Hospital from February 2010 to March 2013 were selected as the research objects and performed the mRNA and methylation analysis for exploring the correlation between the netrin‐1 receptor UNC5C defects with colorectal cancer disease .Results mRNA of UNC5A and UNC5B was expressed in the detected colorectal cancer cell lines .Except FCL for UNC5C ,all of the cancer cell lines had no mRNA expression .In colorectal cancer tissue , UNC5C methylation was significantly higher than that in the normal mucosa ,the difference was statistically significant (P<0 .05) . The methylation levels of UNC5C gene in the stage Ⅰ to Ⅱ ,and the stage Ⅲ to Ⅳwere significantly higher than non‐methylation levels ,the differences were statistically significant (P<0 .05) .The correlation analysis by the Spearman method showed that the UNC5C defects was positively correlated with colorectal cancer disease (r= 0 .856 ,P< 0 .05) .Conclusion Netrin‐1 receptor UNC5C defect has certain correlation with colorectal cancer disease .
8.Intravascular ultrasound thrombolysis ultrasonography-guided for treating lower limb arteriosclerosis obliterans
Dongfeng CHEN ; Zhenzhong JIA ; Dongsheng GAO ; Qingxian LI ; Chuanhuan ZHANG ;
Chinese Journal of Current Advances in General Surgery 1999;0(04):-
To observe the feasibility of ultrasonography as guide of ultrasound thrombolysis for treating lower limb arteriosclerosis obliterans.Methods: Fifteen cases of lower limb arteriosclerosis obliterans were treated with intravascular ultrasound thrombolysis.The whole processes were guided by ultrasonography.Results: Ultrasonography clearly showed the walls of the arteries,thrombus,artheromatous plaques and blood flow dynamics.It also showed on real time the structures,positions and work states of the catheter,guide wire and thromboltic probe during manipulation.It provided reliable surveillance and guide of ultrasound thrombolysis.All the obliterated arteries of the patients were successfully recanalized.Conclusion: Ultrasonography is a feasible means for surveillance and guide of intravascular ultraound theombolysis.
10.Relationship between serum PAPP-A expression and gene polymorphism with severity of coronary lesions in patients with coronary heart disease
Hui LIU ; Haijian LI ; Chuanyu GAO ; Shaofen MAO ; Yafei TAO ; Dongsheng REN
Chongqing Medicine 2016;45(18):2488-2490,2493
Objective To investigate the relationship between serum pregnancy associated plasma protein A (PAAA‐A) ex‐pression and gene polymorphism with the severity of coronary lesions in the patients with coronary heart disease (CHD) .Methods Ninety‐eight patients with CHD in the Nanyang Municipal Central Hospital were selected as the observation group and divided into single vessel lesion group and multiple vessel lesion group according to coronary angiographic results .Ninety‐eight individuals un‐dergoing healthy physical examination were selected as the control group .The venous blood was collected at the visiting hospital in the observation group and at the physical examination in the control group for detecting the serum PAPP‐A protein level by ELISA .PAPP‐A gene and IVS6+ 95 polymorphism were analyzed by adopting polymerase chain reaction restriction fragment length polymorphism(PCR‐RELP) .Results Compared with the control group ,peripheral blood PAPP‐A protein level in the obser‐vation group was significantly increased(P<0 .05) ,moreover the PAPP‐A protein level in the multiple vessel lesion group was sig‐nificantly higher than that of the single vessel lesion group (P<0 .05) .The peripheral blood PAPP‐A level was positively correlated with the severity of CHD .Three genotypes existed in PAPP‐A gene IVS6+95 locus ,including CG heterozygous ,homozygous CC and GG homozygous type .The CC homozygous allele frequency in the patients with multiple vessel lesion was higher than that in the patients with single vessel lesion (P<0 .05) .Conclusion The PAPP‐A protein level and IVS6+95 polymorphism have a close relation with the severity of coronary lesions in patients with CHD .CC genotype may be one of genetic susceptibility gene markers in the patients with CHD .