Ghrelin effects on midgut tissue antioxidative defense and glutathione S-transferase activity in Lymantria dispar (Lepidoptera)

Authors : VESNA PERIC MATARUGA, MILENA VLAHOVIC, MARIJA MRDAKOVIC, DRAGANA MATIC, ANJA GAVRILOVIC, ALEKSANDRA MRKONJA, LARISA ILIJIN

Pages : 618-623

Doi:10.3906/biy-1502-15

View : 18 | Download : 9

Publication Date : 2015-12-01

Article Type : Research Paper

Abstract :The aim of the study was to examine changes in Cu?Zn superoxide dismutase insert ignore into journalissuearticles values(SOD);, catalase insert ignore into journalissuearticles values(CAT);, their gel electrophoresis profiles, glutathione reductase insert ignore into journalissuearticles values(GR); activity, amount of glutathione insert ignore into journalissuearticles values(GSH);, and the activity of glutathione S-transferase insert ignore into journalissuearticles values(GST); - phase II biotransformation enzyme in the midgut tissue of gypsy moth insert ignore into journalissuearticles values(Lymantria dispar L. insert ignore into journalissuearticles values(Lepidoptera: Lymantriidae);); larvae after ghrelin treatment. Four subpicomolar injections of ghrelin insert ignore into journalissuearticles values(0.3 pmol); or physiological saline insert ignore into journalissuearticles values(control); were applied every 24 h. The SOD, CAT, GR, GST activity, and amount of GSH were higher in the ghrelin-treated group than in the control. Electrophoresis gel bands of SOD and CAT had higher area and density in the treated group. The effects of ghrelin on the antioxidative defense and GST activity in insects were detected for the first time. The results provided evidence for possible application of insects as simple model systems in future studies of the role of ghrelin in the antioxidative protection of complex organisms.
Keywords : Superoxide dismutase, catalase, glutathione reductase, glutathione, glutathione S transferase