scholarly journals Time-Course Effects of Acute Aflatoxin B1 Exposure on Hepatic Mitochondrial Lipids and Oxidative Stress in Rats

2019 ◽  
Vol 10 ◽  
Author(s):  
Oluwakemi A. Rotimi ◽  
Solomon O. Rotimi ◽  
Jaclyn M. Goodrich ◽  
Isaacson B. Adelani ◽  
Emmanuel Agbonihale ◽  
...  
2010 ◽  
Vol 42 (6) ◽  
pp. 950-958 ◽  
Author(s):  
Flávia A. Guarnier ◽  
Alessandra L. Cecchini ◽  
Andréia A. Suzukawa ◽  
Ana Leticia G.C. Maragno ◽  
Andréa N.C. Simão ◽  
...  

2018 ◽  
Vol 26 ◽  
pp. 42-48 ◽  
Author(s):  
Grace A. Odongo ◽  
Nina Schlotz ◽  
Susanne Baldermann ◽  
Susanne Neugart ◽  
Benard Ngwene ◽  
...  

2006 ◽  
Vol 38 (Supplement) ◽  
pp. S419
Author(s):  
Chia-Ying Lien ◽  
Karen Y. Wonders ◽  
David S. Hydock ◽  
Carole M. Schneider ◽  
Reid Hayward ◽  
...  

2012 ◽  
Vol 38 (3) ◽  
pp. 157-163 ◽  
Author(s):  
Matthias Lange ◽  
Yoshimitsu Nakano ◽  
Daniel L. Traber ◽  
Atsumori Hamahata ◽  
Lillian D. Traber ◽  
...  

2010 ◽  
Vol 153 (2) ◽  
pp. 319-325 ◽  
Author(s):  
Gaiqing Wang ◽  
Qidong Yang ◽  
Guanglai Li ◽  
Li Wang ◽  
Weimin Hu ◽  
...  

2021 ◽  
pp. 112124
Author(s):  
Xiaotong Li ◽  
Zhiming Lv ◽  
Jia Chen ◽  
Eugenie Nepovimova ◽  
Miao Long ◽  
...  

2020 ◽  
Vol 26 (6) ◽  
pp. 613-623 ◽  
Author(s):  
Danielle S. Goulding ◽  
R. Caleb Vogel ◽  
John C. Gensel ◽  
Josh M. Morganti ◽  
Arnold J. Stromberg ◽  
...  

OBJECTIVENeonatal intraventricular hemorrhage (IVH) leads to posthemorrhagic hydrocephalus (PHH), brain injury, and long-term disability. Current therapy for IVH is based on treating PHH but does not address the underlying brain injury. In order to develop pharmacological treatment for IVH, there must be a better understanding of the underlying pathology of this disease. This study was designed to determine the time course of the acute inflammation and oxidative stress that may underlie the progressive pathology of IVH. The authors sought to understand the temporal relationships among inflammation, oxidative stress, and white matter pathology in a rat model of IVH.METHODSA rat model of IVH consisting of hemoglobin injection into the lateral ventricle was used. Tissue was analyzed via biochemical and histological methods to map the spatiotemporal distribution of innate immune activation and oxidative stress. White matter was quantified using both immunohistochemistry and Western blot for myelin basic protein (MBP) in the corpus callosum.RESULTSIVH led to acute induction of inflammatory cytokines, followed by oxidative stress. Oxidative stress was concentrated in white matter, adjacent to the lateral ventricles. Animals with IVH initially gained weight at a lower rate than control animals and had larger ventricles and less MBP than control animals.CONCLUSIONSExperimental IVH induces global inflammation throughout the brain and oxidative stress concentrated in the white matter. Both of these phenomena occur early after IVH. This has implications for human neonates with immature white matter that is exquisitely sensitive to inflammation and oxidative stress. Antiinflammatory or antioxidant therapy for IVH may need to be initiated early in order to protect developing white matter.


2018 ◽  
Vol 314 (1) ◽  
pp. R122-R134 ◽  
Author(s):  
Yufeng Zhang ◽  
Frances Humes ◽  
Gregory Almond ◽  
Andreas N. Kavazis ◽  
Wendy R. Hood

Mitochondria are hypothesized to display a biphasic response to reactive oxygen species (ROS) exposure. In this study, we evaluated the time course changes in mitochondrial performance and oxidative stress in house mice following X-irradiation. Forty-eight mice were equally divided among six groups, including a nonirradiated control and five experimental groups that varied in time between X-ray exposure and euthanasia (1 h and 1, 4, 7, and 10 days after X-irradiation). We measured parameters associated with mitochondrial respiratory function and ROS emission from isolated liver and skeletal muscle mitochondria and levels of oxidative damage and antioxidants in liver, skeletal muscle, and heart tissues. Mitochondrial function dropped initially after X-irradiation but recovered quickly and was elevated 10 days after the exposure. Hydrogen peroxide production, lipid peroxidation, and protein carbonylation showed inverse U-shaped curves, with levels returning to control or lower than control, 10 days after X-irradiation. Enzymatic antioxidants and markers for mitochondrial biogenesis exhibited a tissue-specific response after irradiation. These data provide the first chronological description of the mitohormetic response after a mild dose of irradiation and highlight the protective response that cells display to ROS exposure. This study also provides valuable information and application for future mitochondrial and oxidative stress studies in numerous physiological settings.


Sign in / Sign up

Export Citation Format

Share Document