ABSTRACT
Objective To investigate the association between β2-adrenergic receptor gene polymorphism and coronary atherosclerotic heart disease, and to provide reference for clinical disease prevention and treatment.MethodsThe clinical data of 200 patients with coronary atherosclerotic heart disease confirmed by coronary angiography were selected and included in the study group, and 200 healthy subjects without coronary atherosclerotic heart disease group.The polymorphism of β2 adrenergic receptor gene was detected and the frequency of each gene was analyzed.ResultsThe genotype frequencies of β2-adrenergic receptor gene were in accordance with Hardy-Weinberg equilibrium, the difference was not statistically significant.According to dominant genetic model, the frequency of AA+AG was 46.0% vs 58.0% lower than that of the control group, and had statistical significance, The genotype frequency of GG genotype in study group was significantly lower than that in control group 14.0% vs 26.0%, χ2=26.20, P=0.00.The frequency of GG genotype in study group was significantly higher than that in control group 54.0% vs 42.0%, χ2=5.76, P=0.01.The frequency of A gene was 38.0% compared with 44.0% in control group, χ2=1.48, P=0.22;the frequency of AA gene in study group was 30.0%, and the frequency of gene A was 38.0%, compared with 56.0% Compared with 32.0% in the control group, χ2=0.18, P=0.66.ConclusionThe A/G polymorphism of β2-adrenergic receptor gene is closely related to the clinical pathogenesis of coronary atherosclerotic heart disease, and the A allele may be a protective factor in patients with coronary atherosclerotic heart disease.
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Objective To observe and explore the effectiveness of irbesartan hydrochlorothiazide(IH) combine with Bisoprol‐ol fumarate(BIS) on youth hypertension .Methods Randomly divided 96 patients in our hospital from September 2012 to February 2015 into observation group and control group(48 cases in each/group) .the IH treatment was given to the control group based on regular drug ,while the BIS was given to the observation group on the basis of the control group .systolic pressure(SBP) ,diastic pressure(DBP) and heart rate(HR) ,left ventricular end diastolic diameter(LVEDD) ,E peak and left ventricular ejection fraction (LVEF) in the two groups before and after treatment were detected ,and comprehensive efficacy were evaluated based on blood pressure improvement .Results Before treatment ,the difference of SBP ,DBP ,HR ,LVEDD ,E peak and LVEF between the two groups was not statistically significant (P>0 .05);after treatment ,SBP ,DBP and HR were (116 .4 ± 11 .8)mm Hg ,(85 .3 ± 6 .7) mm Hg and (65 .2 ± 7 .1)times/min in the observation group ,respectively ,while in the control group ,SBP ,DBP and HR were (132 .8 ± 14 .6)mm Hg ,(96 .3 ± 6 .2)mm Hg and (75 .2 ± 8 .1)times/min ,respectively ,the difference was statistically significant(P<0 .05);after treatment ,LVEDD in observation group was significantly lower than the control group ,while LVEF ,E peak were significantly higher(P< 0 .05);the total effective rate in observation group was 95 .8% (46/48) ,while total effective rate was 75 .0% (36/48) in the control group ,the difference was statistically significant(P<0 .05) .Conclusion IH combined with BIS can significantly improve blood pressure in patients with juvenile hypertension and has significant effect ,thus it is a safe and effective therapy for juvenile hypertension .
ABSTRACT
Objective To study the effect of abnormal left ventricular diastolic function(LVDF)on the onset and severity of atrial or ventricular arrhythmia in elderly essential hypertensive patients.Methods The 210 elderly essential hypertensive patients were enrolled in this study. Their arrhythmias were monitored by 24-hour ambulatory electrocardiogram. The essential hypertensive patients were referred for Doppler echocardiography to evaluate left ventricular function, while patients with abnormal systolic function were excluded, and then the patients were classified as normal LVDF and abnormal LVDF including, impaired relaxation, pseudonormal, and restrictivelike filling patterns. Results In 210 elderly essential hypertensive patients, 147 (70%) cases were diagnosed as atrial arrhythmia and 102 (49%) cases as ventricular arrhythmia (χ2 = 19. 975, P ＜ 0.05 ).Morbidities of atrial (89%) or complex atrial arrhythmia (49%) as well as ventricular (63%) orcomplex ventricular arrhythmia (30%) were significantly higher in abnormal LVDN group than in normal LVDN group (40%, 13%, 26% and 7%, χ2 = 56. 723 、 28. 359 、 28. 076、15. 9102 , all P＜0. 05). The morbidities of arrhythmias were higher in hypertensive patients with pseudonormal and restrictiveike filling patterns than in other groups 93.6% and 96. 4%. Conclusions Abnormal left ventricular diastolic function affects on the onset and severity of atrial or ventricular arrhythmia in elderly essential hypertensive patients, and complex atrial or ventricular arrhythmia is easier found in hypertensive patients with pseudonormal and restrictivelike filling patterns.