beta-Glucan administration to diabetic rats alleviates oxidative stress by lowering hyperglycaemia, decreasing non-enzymatic glycation and protein O-GlcNAcylation
2013
Autori:
Mihailović, MirjanaArambašić Jovanović, Jelena
Uskoković, Aleksandra
Dinić, Svetlana
Grdović, Nevena
Marković, Jelena
Bauder, Jelena
Poznanović, Goran
Vidaković, Melita
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
This effect of commercially available beta-glucan-enriched extract (BGEE) in streptozotocin-induced diabetic rats on protein glycation and enzymatic post-translational glycosylation with O-linked N-acetylglucosamine (O-GlcNAc) groups was examined. The BGEE-promoted improvement of diabetic hyperglycaemia was accompanied by significantly lower serum protein glycation. While this revealed an indirect effect of BGEE on protein glycation through its ability to improve hyperglycaemia, the observed BGEE capability to decrease the formation of advanced glycation end-products (AGE) in an in vitro glycation process pointed to its direct glycation-suppressive function in vivo. Compared to untreated diabetic rats, BGEE-treated diabetic rats displayed lower levels of O-GlcNAc-modified liver and kidney antioxidant enzymes, Mn- and CuZn superoxide dismutases and catalase, their improved specific enzymatic activities and increased transcription of genes encoding for them. These results show that BGEE exerts a normalizing effect on diabetes-linked protein modifications, adding to the list of beneficial effects it could provide in diabetes management. (C) 2013 Elsevier Ltd. All rights reserved.
Izvor:
Journal of Functional Foods, 2013, 5, 3, 121-1234Finansiranje / projekti:
- Signalni molekuli u dijabetesu: identifikacija potencijalnih bioloških markera uključenih u modifikaciju i integraciju signalnih puteva u cilju predikcije i intervencije u dijabetesu (RS-MESTD-Basic Research (BR or ON)-173020)
DOI: 10.1016/j.jff.2013.04.005
ISSN: 1756-4646