1.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.
2.Impact of High Thoracic Epidural Blockade on Autonomic Nerve Remodeling in Experimental Dogs With Atrial Fibrillation
Yong CAO ; Xiaoyan TIAN ; Ran ZHANG ; Yuchuan DAI ; Jiaqi ZHAO ; Yi AN
Chinese Circulation Journal 2016;31(12):1219-1223
Objective: To observe the impact of high thoracic epidural blockade (HTEB) on atrial autonomic nerve remodeling in dogs with atrial ifbrillation (AF) induced by long-term rapid right atrial appendage pacing and to explore the effect of nerve growth factor (NGF) on atrial autonomic nerve remodeling.
Methods: AF model was established by consistent rapid atrial pacing for 6 weeks. 18 experimental dogs were randomly divided into 3 groups: Sham group, the dogs had no pacing while received normal saline injection; Control group, the dogs had pacing and normal saline injection; HTEB group, the dogs had pacing and 0.5% lidocaine injection for HTEB.n=6 in each group. Atrial myocardium collagen volume fraction (CVF) was examined by Masson staining; sprouting of NGF related protein 43 (GAP43) and tyrosine hydroxylase (TH) were assessed by immunohistochemistry; protein expressions of NGF, GAP43 and TH were measured by Western blot analysis.
Results: Compared with Sham group, HTEB group showed decreased CVF and sprouting of GAP43, TH,P<0.05;reduced protein expressions of NGF, GAP43 and TH,P<0.05-0.01. Compared with Sham group, HTEB group presented increased CVF and sprouting of GAP43, TH,P<0.05-0.01; elevated protein expressions of NGF, GAP43 and TH,P<0.05.
Conclusion: Long-term rapid atrial pacing induced AF dog had inhomogeneous sprouting of atrial myocardial nerve which may cause autonomic nerve remodeling; NGF played the important role in such process. HTEB could effectively inhibit NGF up-regulation and suppress the autonomic nerve remodeling in experimental dogs.
3.Relationship between the polymorphism of the AT2R gene 1675A/G and the effect of indapamide sustained release tablets in female hypertension patients
Yuchuan DAI ; Chuanfang LI ; Lijun GAN ; Meng ZHANG ; Yuntao CHENG ; Junxia GUO
Clinical Medicine of China 2012;28(12):1273-1276
Objective To investigate the relationship of the1675A/G polymorphism of AT2 gene with the therapeutic effect of indapamide sustained release tablets in female patients with primary hypertension.Methods Two hundred and twenty female patients with primary hypertension were treated with Indapamide Sustained Release Tablets ( 1.5 mg · qd) for 8 weeks.The blood samples from the patients were collect to determine AT2 gene polymorphism by PCR combined with HRM and sequencing.Results Two hundred and five patients completed the test.In female patients,the therapeutic efficacy of indapamide sustained telease tablets among different AT2R genotypes( AA:70.6%,AG:71.6%,GG:71.4% ) showed no significant difference ( x2=2.53,P=0.49 ),neither do the decline of BP after therapy ( F=0.39 and 0.19 respecrively,P > 0.05).Conclusion The AT2 genotype was assumed to be not correlated to the blood pressure lowering response to Indapamide Sustained Release Tablets in female primary hypertension patients.
4.The application value of sakubatril valsartan in the treatment of chronic heart failure based on cardiopulmonary exercise test system
Ran ZHANG ; Lujing ZHAO ; Yuchuan DAI ; Chuanfang LI
Chinese Journal of Postgraduates of Medicine 2022;45(6):521-525
Objective:To analyze the application value of sakubatril valsartan in the treatment of chronic heart failure (CHF) based on cardiopulmonary test system.Methods:One hundred and thirty-five CHF patients admitted to the Affiliated Hospital of Jining Medical Collegefrom January 2019 to August 2020 were divided into the observation group (67 cases) and the control group (68cases) by random number table method. Both groups were treated with bisoprolol. The observation group was treated with the combination of sakubatril valsartan, and the control group was treated with the combination of benapril. The efficacy and cardiac function indicators of the two groups were compared. The cardiopulmonary exercise test system was used to measure the patient′s maximum exercise time (Tmax), maximum exercise Watt (Wmax), peak volume oxygen (Peak VO 2) and volume of anaerobic threshold oxygen (VO 2AT), and the incidence of adverse reactions were calculated. Results:The total effective rate in the observation group was higher than that in the control group: 92.54% (62/67) vs. 77.94%(53/68), the difference was statistically significant ( χ2 = 5.70, P<0.05). After the treatment, the levels of N-terminal pro-brain natriuretic peptide (NT-proBNP) and soluble ST2 (sST2) in the observation group were lower than those in the control group: (2 000.47 ± 517.85) ng/L vs. (2 777.39 ± 812.49) ng/L, (0.33 ± 0.10) μg/L vs. (0.37 ± 0.09) μg/L, and the left ventricular ejection fraction (LVEF) was higher than that in the control group: (8.12 ± 6.44)% vs. (41.93 ± 6.73)%, the differences were statistically significant ( P<0.05). After the treatment, the left ventricular end-diastolic diameter (LVEDd), left ventricular end-systolic diameter (LVEDs), left ventricular mass index (LVMI), left atrial volume index (LAVI) in the observation group were lower than those in the control group: (55.47 ± 6.93) mm vs. (62.00 ± 7.18) mm, (37.14 ± 6.36) mm vs. (41.35 ± 6.43) mm, (136.76 ± 7.13) mg/m 2 vs. (140.98 ± 7.47) mg/m 2, (28.23 ± 2.59) ml/m 2 vs. (31.98 ± 2.17) ml/m 2; the Tmax, Wmax, PeakVO 2 and VO 2AT in the observation group were higher than those in the control group: (619.08 ± 65.36) s vs. (58.70 ± 52.44) s, (142.96 ± 16.05) W vs. (124.19 ± 13.38) W, (20.00 ± 5.74) ml/(min·kg) vs. (18.13 ± 3.58) ml/(min·kg), (13.89 ± 3.69) ml/(min·kg) vs. (11.23 ± 2.36) ml/(min·kg), the differences were statistically significant ( P<0.05). However, there was no statistically significant in the incidence of adverse reactions between the two groups ( P>0.05). Conclusions:Sakubatril valsartan in the treatment of CHF can not only optimize the efficacy and improve cardiac function, but also benefit cardiac exercise rehabilitation of patients, and not increase the safety risk.
5.Imaging features of oblique vaginal septum syndrome and its diagnostic value
Bo CHEN ; Tingting DAI ; Jianmin CHENG ; Lezhen JIANG ; Xue WANG ; Yuchuan FU ; Yu CHEN ; Caihong CHEN
Journal of Practical Radiology 2017;33(10):1561-1564,1576
Objective To investigate the imaging findings of oblique vaginal septum syndrome and its diagnostic value.Methods Clinical and radiographic data of 13 patients with oblique vaginal septum syndrome were analyzed retrospectively and relevant literatures were reviewed.All 13 patients underwent ultrasonography examination preoperatively,and 8 of them underwent MRI examination,and 3 patients underwent CT examination as well.The position of the oblique septum,the size of the cavity in the rear of oblique septum, the positional relationship between the cavity in the rear of oblique septum and the cervix,and the concomitant changes of the uterine appendages and urinary system were analyzed.Results The ultrasonography and MRI examinations all manifested as uterus didelphys,cervix duplex,double vagina and obstructed hemivagina,and oblique septum originated from the middle of cervix duplex and attached to one side of the vaginal wall,shielding the ipsilateral cervix;oblique vaginal septum was on the right side in 4 cases and on the left side in 9 cases;the average volume of the cavity in the rear of oblique septum in 6 cases of type Ⅰ was 255 mL,and the average volume in 6 cases of type Ⅱ was 74 mL,and the volume in 1 case of type Ⅲ was 56 mL;2 cases were combined with ipsilateral hematosalpinx and 1 case was combined with a chocolate cyst of ipsilateral ovary;12 cases were accompanied with ipsilateral renal agenesis and 1 case was accompanied with ipsilateral renal hypoplasia.CT examinations of 3 cases all presented as uterus didelphys,a cystic hypodensity lesion under unilateral cervix and ipsilateral renal agenesis.Conclusion Imaging findings of oblique vaginal septum syndrome are quite characteristic. Ultrasonography,CT and MRI examinations have certain value for accurate diagnosis of the disease.