Impact of tumour necrosis factor- a on ambulatory arterial stiffness index in prehypertensives
2011
Objective To investigate the impact of tumour necrosis factor-a on ambulatory arterial stiffness index in prehypertensives. Methods One hundred normotensives and one hundred and five prehypertensives were recruited, while one hundred and ten hypertensives were enrolled. 24 h ambulatory blood pressure monitoring (ABPM) was carried out in the three groups, respectively, and ambulatory arterial stiffness index (AASI) was computed. Tumour necrosis factor-a (TNF-a) was measured using radioimmunity kits. Results Tumour necrosis factor-a and ambulatory arterial stiffness index in prehypertensives (44.21±9.81 pg/ml, 0.42±0.13), were higher than that in normotensives (26.91±12.35 pg/ml, 0.36±0.15), while lower than that in hypertensives (59.74±23.38 pg/ml, 0.49±0.12). Pearson correlation analysis showed that the level of tumour necrosis factor-a was positively correlated with ambulatory arterial stiffness index in prehypertensives (r=0.513, p Conclusion Ambulatory arterial stiffness index was correlated with tumour necrosis factor-a. Inflammation was relevant to the development of arterial stiffness in prehypertensives.
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