ABSTRACT
Objective To study the correlation between the level of CaMKIV and essential hypertension (EH) in Shihezi community. Methods One hundred and forty-six patients with EH and 142 with normal blood pressure are enrolled from 15 communities in shihezi. We collected the clinical data, including blood pressure, body mass index, waist circumference, blood lipids. The serum level of CaMKIV was detected using an enzyme linked immunosorbent assay. Results The serum level of CaMKIV in the EH group was significantly lower than that in the normal blood pressure group (P < 0.05). The serum CaMKIV was negatively correlated with systolic BP and diastolic BP (r = -0.304, -0.452, all P < 0.05), with more obvious correlation with patients whose diastolic blood pressure was over 100 mmHg (r = -0.571, P < 0.05). Conclusions The serum level of CaMKIV is negatively correlated with EH, which is an independent factor of EH.
ABSTRACT
Objective To explore the correlation between plasma asymmetric dimethylarginin(ADMA) and essential hyper‐tention(EH) by comparing the difference of plasma asymmetric dimethylarginine levels between Kazak and Han patients with EH in Xinjiang .Methods 91 Kazak and 112 Han patients with EH were selected .81 Kazak and 110 Han healthy people were selected as healthy control groups .The plasma ADMA levels in EH groups and the control groups were measured by using the reverse phase‐high performance liquid chromatography (RP‐HPLC) .Meanwhile the liver function ,renal function ,blood lipids ,blood glucose and fructosamine were measured .Results Kazak and Han patients with EH had higher levels of plasma ADMA than the control groups (P<0 .01);there was a positive correlation between the plasma ADMA and blood pressure levels of EH patients in two na‐tionalities(r=0 .715 ,P<0 .01 for Kazak ;r=0 .645 ,P<0 .01 for Han) .Conclusion Both Kazak and Han patients with EH have higher levels of ADMA than the respective healthy control group in Xinjiang .The correlation between the plasma levels of ADMA and EH existed ,which indicate that ADMA might be involved in the occurrence and development of EH .
ABSTRACT
Objective To explore the relationship among the left ventricular rotation and twist, Tei index and left ventricular function in chronic heart failure patients and provide reliable indicator of chronic heart left ventricular myocardial function and mechanical movement. Methods Seventy-nine chronic heart failure patients with cardiac function classⅡ(32 cases), cardiac function classⅢ(26 cases) and cardiac function classⅣ(21 cases) and 28 healthy volunteer were included. All subjects underwent conventional echocardiography and two dimensional-speckle tracking imaging. The mitral annulus tissue Doppler spectrums at apical four chambers view, two-dimensional images of left ventricle at basal and apical level were acquired. The left ventricular twist, segmental rotation at short axis view and Tei index were measured. The differences were compared and the correlations were analyzed. Results (1) There were signiifcant differences for Tei index among the four group (χ2=88.31, P<0.01). The Tei index of healthy control group and chronic heart failure patients with cardiac function class Ⅱ , class Ⅲand class Ⅳwere 0.33±0.19, 0.37±0.18, 0.46±0.31 and 0.49±0.33. The Tei index gradually increased when the heart function decreased. (2) The left ventricular twist were also signiifcantly different among the four groups (F=25.99, P<0.01). The left ventricular twist of healthy control group and chronic heart failure patients with cardiac function classⅡ, classⅢ and classⅣwere (12.89±2.65)°, (12.29±1.94)°, (12.38±2.13)° and (8.46±2.90)°. The left ventricular twist gradually decreased when the heart function decreased. The differences between chronic heart failure patients with cardiac function classⅣand healthy control group, chronic heart failure patients with cardiac function classⅡand classⅢwere signiifcant (q=6.43, 5.71 and 4.17, all P<0.05). (3) The left ventricular segmental rotations at basal level were significantly different among healthy control group and chronic heart failure patients with cardiac function classⅡ,ⅢandⅣ(F=9.51, 9.47, 7.41, 10.27, 9.42 and 11.34, all P<0.01 ). The left ventricular segmental rotations were positively correlated with Tei index and the segmental rotation of anterior wall was most correlated with Tei index (r=0.327, 0.277, 0.266, 0.321, 0.306 and 0.325, all P<0.01). (4) The left ventricular segmental rotations at apical level were signiifcantly different among four groups (F=6.17, 3.49, 3.46, 3.50, 3.48 and 2.81, all P<0.01). The left ventricular segmental rotations were negatively correlated with Tei index and the segmental rotation of anterior wall was most correlated with Tei index (r=-0.362,-0.278,-0.251,-0.279,-0.290 and-0.288, all P<0.01). (5) The left ventricular twist and Tei index were negatively correlated (r=-0.443, P<0.01). Conclusions The left ventricular twist and segmental rotation at short axis view in patients with chronic heart failure decreased and Tei index gradually increased. The left ventricular twist and Tei index were negatively correlated. The combination of two-dimensional speckle tracking technology and Tei index could achieve noninvasive assessment of left ventricular mechanical movement and left heart function in chronic heart failure patients.
