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Paper text:
vegf 
 and bfgf contents in various subtypes of grade i meningiomas vegf 
 ( upper panel ) and bfgf ( lower panel ) contents were determined by 
 elisa .
n denotes the number of patients . for transitional 
 meningiomas : vegf range [ 0.259.85 ] and bfgf range 
 [ 67.4576.9 ] ; for microcystic meningiomas : vegf range 
 [ 0.715.29 ] and bfgf range [ 164.3520.0 ] ; for 
 meningothelial meningiomas : vegf range [ 0.874.98 ] and bfgf 
 range [ 183.6573.7 ] ; for fibroblastic meningiomas : vegf range 
 [ 0.101.69 ] and bfgf range [ 142.1377.3 ] . 
 *
no statistical differences were observed between groups ( mann - whitney 
 u test ) .
the quantitative analysis of vegf using elisa in various subtypes of grade i meningiomas reported higher vegf contents in meningothelial ( 2.38  0.62 pg/g protein , n = 7 ) , transitional ( 1.08  0.21 pg/g protein , n = 13 ) , and microcystic meningiomas ( 1.98  0.87 pg/g protein , n = 5 ) as compared with fibrous ones ( 0.36  0.09 pg/g protein , n = 5 ) . 
 in contrast to vegf , no difference in the concentrations of bfgf was detected . 
 vegf levels did not correlate with meningioma grade ( 1.47  0.23 pg/g versus 2.29  0.58 pg/g for 32 and 16 grade i and ii , resp ) , vascularisation ( 1.53  0.41 pg/g versus 1.96  0.28 pg/g for 24 low and 24 high vascularisated tumours , resp ) , and brain invasion ( 2.32  0.59 pg/g versus 1.46  0.27 pg/g for 7 and 41 patients with and without invasion , resp ) . 
 the elisa procedure is , thus , an interesting tool to ensure vegf and bfgf levels in meningiomas and to test putative correlations with clinical parameters . 
 it is , thus , tempting to speculate that elisa would also be valuable for the quantitative analysis of other angiogenic growth factors and cytokines in intracranial tumours .