Home Bratislava Medical Journal 2012 Bratislava Medical Journal Vol.113, No.1, p.5-9, 2012

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Published Monthly, in English
Founded: 1919
ISSN 0006-9248
(E)ISSN 1336-0345

Impact factor 1.564


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Bratislava Medical Journal Vol.113, No.1, p.5-9, 2012

Title: Tacrolimus inhibits intimal hyperplasia in arterialised veins in rats
Author: M. Varga , I. Matia, A. Lodererova, M. Adamec


Objectves: We investigated whether tacrolimus (FK506) can inhibit neointimal formation in arterialised vein grafts in rats.
Methods: Lewis iliolumbar veins were implanted into the abdominal aorta of isogeneic rats. Animals in the treatment groups had daily intramuscular injections of tacrolimus at 0.2 mg/kg (group B) and 0.1 mg/kg (Group C), respectively. The control group A had no treatment. Light microscope evaluations of arterialised vein grafts were performed 30 days after operation. We determined the presence of endothelial cells, the thickness of intima and media, and the degree of infiltration by MHC class II positive, CD4 positive, and CD8 positive cells into the adventitia.
Results: The intimal thickness in group B (5.0±1.0 µm) was statistically lower (P < 0.05) when compared to group C (7.0±3.0 µm). The intimal thickness in untreated group A (12.7±7.0 µm) was statistically higher (P < 0.01) when compared to both treated groups B and C, respectively. The medial thickness and degree of adventitial infiltration by MHC class II positive, CD8 positive, and CD4 positive cells did not differ between groups.
Conclusion: Treatment with tacrolimus (FK506) showed a dose dependant inhibition of neointimal hyperplasia in arterialised vein grafts in rats (Tab. 1, Fig. 3, Ref. 22).

Keywords: intimal hyperplasia, tacrolimus, FK506; rats.
Published online: 16-Jan-2012
Year: 2012, Volume: 113, Issue: 1 Page From: 5, Page To: 9

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