EXPERIMENTAL ACUTE STRESS AND MYOCARDIAL PROFIBROTIC PROCESS

V R Veber , M P Rubanova , S V Zhmailova , P M Gubskaya , V E Karev , Y Y Rumyantsev , N A Kulik , D R Sulimanova

Medical academic journal ›› 2014, Vol. 14 ›› Issue (1) : 52 -57.

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Medical academic journal ›› 2014, Vol. 14 ›› Issue (1) : 52 -57. DOI: 10.17816/MAJ14152-57
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EXPERIMENTAL ACUTE STRESS AND MYOCARDIAL PROFIBROTIC PROCESS

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Abstract

This research investigates particularities of myocardial fibrogenesis following experimental adrenergic and cholinergic stress. The experiment used 2 series of Wistar rats (20 rats in a serie). 2 hours and 1 month after injection of medicament extracellular space density, collagen density; FGF-2, TGF-β1 cellular and endothelial expression was studied in right and left ventricle’s myocardium. Myocardial collagen density was significantly elevated both 2 hours and 1 month compared to intact animals following acute stress (both adrenergic and cholinergic variant). FGF-2 cellular expression was approximately the same 2 hours and 1 month following both stress variants. TGF-β1 cellular expression was significantly higher following cholinergic stress, than TGF-β1 expression following adrenergic stress (both 2 hours and 1 month after). Therefore, this findings may indicate that myocardial fibrogenesis following cholinergic stress proceeds more actively during first hours and persists 1 month after acute cholinergic stress (supported by prolonged TGF-β cellular expression). In our opinion, acute stress activates profibrotic process, wich, once initiated, could become self-supporting.

Keywords

TGF-β1 / myocardium / fibrosis / Wistar rats / adrenalin / proserin / acute stress / fibroblast growth factors / FGF-2 / TGF-β / right ventricle / left ventricle

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V R Veber, M P Rubanova, S V Zhmailova, P M Gubskaya, V E Karev, Y Y Rumyantsev, N A Kulik, D R Sulimanova. EXPERIMENTAL ACUTE STRESS AND MYOCARDIAL PROFIBROTIC PROCESS. Medical academic journal, 2014, 14(1): 52-57 DOI:10.17816/MAJ14152-57

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Veber V.R., Rubanova M.P., Zhmailova S.V., Gubskaya P.M., Karev V.E., Rumyantsev Y.Y., Kulik N.A., Sulimanova D.R.

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