Effects of radiographic contrast media on proliferation and apoptosis of human vascular endothelial cellsCitation formats
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Effects of radiographic contrast media on proliferation and apoptosis of human vascular endothelial cells. / Zhang, H.; Holt, C. M.; Malik, N.; Shepherd, L.; Morcos, S. K.
In: British Journal of Radiology, Vol. 73, No. 874, 2000, p. 1034-1041.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Effects of radiographic contrast media on proliferation and apoptosis of human vascular endothelial cells
AU - Zhang, H.
AU - Holt, C. M.
AU - Malik, N.
AU - Shepherd, L.
AU - Morcos, S. K.
PY - 2000
Y1 - 2000
N2 - The aim of the study was to determine the effects of radiographic contrast media (RCM) on proliferation and apoptosis of human vascular endothelial cells. Human umbilical vein endothelial cells (HUVECs) were exposed for either 1 min or 15 min to RCM (diatrizoate, ioxaglate, iopromide, iotrolan) at an iodine concentration of 250 mgI ml-1. Controls were complete growth medium (CGM) and saturated mannitol (osmotic control). [3H]thymidine incorporation was used to determine cell proliferation 24 h after exposure. Apoptosis was determined at 1 h and 6 h by terminal uridine nick end labelling (TUNEL), time lapse video microscopy (TLVM) and DNA electrophoresis. Mean proliferation rates (%) (±SEM) (p-values compared with the CGM control) at 1 min and 15 min, respectively, were: diatrizoate: 31.9 (10.6), 5.8 (1.5) (pioxaglate>iopromide) reduced proliferation and increased apoptosis of HUVECs. The effects were more pronounced with ionic RCM and seem to depend on osmolality as well as the chemical structure of these agents. Endothelial injury and apoptosis may be responsible for some of the side effects associated with intravascular use of RCM.
AB - The aim of the study was to determine the effects of radiographic contrast media (RCM) on proliferation and apoptosis of human vascular endothelial cells. Human umbilical vein endothelial cells (HUVECs) were exposed for either 1 min or 15 min to RCM (diatrizoate, ioxaglate, iopromide, iotrolan) at an iodine concentration of 250 mgI ml-1. Controls were complete growth medium (CGM) and saturated mannitol (osmotic control). [3H]thymidine incorporation was used to determine cell proliferation 24 h after exposure. Apoptosis was determined at 1 h and 6 h by terminal uridine nick end labelling (TUNEL), time lapse video microscopy (TLVM) and DNA electrophoresis. Mean proliferation rates (%) (±SEM) (p-values compared with the CGM control) at 1 min and 15 min, respectively, were: diatrizoate: 31.9 (10.6), 5.8 (1.5) (pioxaglate>iopromide) reduced proliferation and increased apoptosis of HUVECs. The effects were more pronounced with ionic RCM and seem to depend on osmolality as well as the chemical structure of these agents. Endothelial injury and apoptosis may be responsible for some of the side effects associated with intravascular use of RCM.
M3 - Article
C2 - 11271894
VL - 73
SP - 1034
EP - 1041
JO - British Journal of Radiology
JF - British Journal of Radiology
SN - 0007-1285
IS - 874
ER -