In vivo study of radioprotective effect of NO-synthase inhibitors and acetyl-L-carnitine

Title:

In vivo study of radioprotective effect of NO-synthase inhibitors and acetyl-L-carnitine

Creator:

Andrea Babicová, Havlínová, Z., Hroch, M., Řezáčová, M., Jaroslav Pejchal, Jiřina Vávrová, and Jaroslav Chládek

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:c39f0785-eae2-45be-8ccb-26c19af71fef
uuid:c39f0785-eae2-45be-8ccb-26c19af71fef

Subject:

Fyziologie člověka a srovnávací fyziologie, ionizující záření, ionizing radiation, acetyl-L-carnitine, aminoguanidine, Nω-nitro-L-arginine methyl ester, 14, and 612

Type:

article, články, model:article, and TEXT

Format:

print

Description:

Gluteal muscle contracture (GMC) is a chronic fibrotic disease of gluteal muscles due to multiple etiologies. The main pathologic process is characterized by proliferation of fibroblasts and excessive accumulation of collagen in the extracellular matrix of the muscle. Sphingosine-1-phosphate (S1P) is a bioactive sphingolipid and has been reported to be associated with various fibrotic diseases. However, the role of S1P in GMC remains unknown. Here in this articl e, High-perform ance liquid chromatography and immunohistochemistry were applied to evaluate S1P localization and expression in clinical samples from patients with GMC, Quantitative real time PCR, Western blot, and enzyme-linked immunosorbent assa y were used to explore the link between transforming growth factor-β 1 (TGF-β 1), plasminogen activator inhibitor-1 (PAI-1) and S1P. The results showed that S1P was enhanced in contraction band (CB) tissues. Studies using the cell proliferation and transformation assay indicated that exogenous S1P stimulated CB fibroblast proliferation in a time-depen dent manner and in higher concentration also in a dose-dependent manner. Furthermore, we demonstrated that S1P not only promoted collagen type I production, but also up-regulated mRNA and protein expression of transforming growth factor-β 1 and plasminogen activator inhibitor-1. These findings suggest that S1P may regulate increased synthesis of collagen and other fibrogenic factors, and significantly contributes to the process of gluteal muscle scarring in patients with GMC., A. Babicová ... [et al.]., and Obsahuje bibliografii a bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2013 Volume:62 | Number:6

Harvested from:

CDK

Metadata only:

false