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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Peripheral blood mononuclear cell-endothelial adhesion in human hypertension following exercise.

OBJECTIVE: To determine the effects of hypertension and exercise on interleukin-6 (IL-6) levels and mononuclear cell adhesion to endothelial cells. DESIGN: Twelve hypertensive and 33 normotensive volunteers were studied prior to and following exhaustive exercise. End points were stimulated IL-6 levels and peripheral blood mononuclear cell (PBMC) CD11a ( LFA-1) expression and in vitro PBMC adhesion to human umbilical venous endothelial cells (HUVEC). RESULTS: In response to exercise, all subjects showed a significant increase in lymphocyte CD11a a density and in IL-6 levels (P < 0.001). Compared to normotensives, hypertensives showed significantly greater mean density of CD11a on lymphocytes (P< 0.05) and on monocytes (P < 0.05). In response to exercise, hypertensive subjects showed a twofold greater increase in IL-6 as compared to normotensives (+ 240 pg/ml versus + 123 pg/ml, respectively; P< 0.05). PBMC adhesion to HUVEC was increased in hypertensives but decreased in normotensives following exercise (P< 0.03). CONCLUSION: The findings suggest that exercise leads to increased mononuclear cell adhesion to endothelial cells in patients with hypertension, possibly through cytokine-induced activation of mononuclear cell CD11a. These findings, coupled with prior data indicating increased endothelial activation in hypertension, may be relevant to the increased risk of atherosclerosis in human hypertension.[1]

References

  1. Peripheral blood mononuclear cell-endothelial adhesion in human hypertension following exercise. Mills, P.J., Maisel, A.S., Ziegler, M.G., Dimsdale, J.E., Carter, S., Kennedy, B., Woods, V.L. J. Hypertens. (2000) [Pubmed]
 
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