Dynamic changes in c-Fos and NF-κB gene expression and Ca, Fe, Cu, Zn and Mg content due to brain injury in irradiated rats. Issue 15 (13th October 2021)

• Record Type: Journal Article
• Authors: Xu, Chao; Tu, Yu; Zhou, Juying; Xu, Xiaoting; Qin, Songbing; Wang, Lili
• Is Part Of: NeuroReport. Volume 32:Issue 15(2021)
• Publication Date: 2021-10-13
• Subjects: c-Fos -- elemental magnesium -- NF-κB -- radiation injury; Neurosciences -- Periodicals; Nervous system -- Periodicals; Neurophysiology -- Periodicals; Nervous System Diseases -- Periodicals; Nervous System Physiological Phenomena -- Periodicals; Neurosciences -- Periodicals; 616.805
• DOI: 10.1097/WNR.0000000000001718
• Languages: English
• ISSNs: 0959-4965

Abstract

Abstract : Background: This study aims to investigate the dynamic changes of c-Fos and NF-κB expression, and to evaluate the Ca, Fe, Cu, Zn and Mg content of hippocampal tissues in rat brains injured by 20 Gy of electron beam irradiation. Materials and methods: A single dose of 5 MeV is administered to the whole brains of rats to establish animal model of radiation-induced brain injury (RBI). Hematoxylin and eosin staining is performed to observe the pathological changes in brain microvascular endothelial cells. Quantitative reverse transcription-PCR and western blotting assays are utilized to test c-Fos and NF-κB gene expression levels in brain tissue. Inductively coupled plasma-atomic emission spectrometry is leveraged to detect the Ca, Fe, Cu, Zn and Mg contents of the hippocampi. Results: The c-Fos and NF-κB gene expression levels in protective group are lower than those in the irradiated group after MgSO4 treatment. In the irradiated group, Ca content at several time points and Fe content on days 1, 3 and 7 are higher than those in the blank group. Additionally, in the irradiated group, Cu and Zn contents on days 1, 7, 14 and 60 are less than those in the blank group. Conclusion: In RBI model, adding Mg 2+ may relieve RBI. The protective mechanisms of Mg 2+ in the hippocampi from a variety of brain activity indicators including the c-Fos and NF-κB genes.