Abstract:
OBJECTIVE:Recent reports of animal models have shown that growth factors have stimulating effect on brain perfusion via the development of blood vessels. However, studies on the effect of growth factors on brain perfusion in humans are lacking. The aim of our study was to prospectively investigate in humans the relation between growth factors and brain perfusion. METHODS:We analyzed circulating levels of vascular endothelial growth factor (VEGF), granulocyte-macrophage colony-stimulating growth factor (GM-CSF), tumor necrosis factor alpha (TNFalpha) and basic fibroblast growth factor (bFGF) in 121 consecutive patients (99 men and 22 women, age 58+/-10 years) who were enrolled in a prospective cohort study of patients with symptomatic atherosclerotic disease. In all patients regional cerebral blood flow (rCBF; in mL/min/100g) measurements were performed with arterial spin labeling magnetic resonance imaging. Cerebrovascular risk factors were assessed by means of a questionnaire and physical, ultrasonographic and laboratory examination. RESULTS:Increasing levels of TNFalpha were significantly associated with a higher rCBF (beta=7.0; 95% confidence interval 0.7; 13.9), independent of the presence of cerebrovascular risk factors. No significant association was found for VEGF, GM-CSF and bFGF. CONCLUSIONS:Increasing levels of TNFalpha are associated with increased rCBF, independent of the presence of cerebrovascular risk factors.
journal_name
Atherosclerosisjournal_title
Atherosclerosisauthors
van Laar PJ,van Raamt AF,van der Grond J,Mali WPTM,van der Graaf Y,Hendrikse J,SMART Study Group.doi
10.1016/j.atherosclerosis.2006.11.041subject
Has Abstractpub_date
2008-01-01 00:00:00pages
449-454issue
1eissn
0021-9150issn
1879-1484pii
S0021-9150(06)00737-4journal_volume
196pub_type
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