Low glutathione levels in brain regions of aged rats.
نویسندگان
چکیده
Glutathione (GSH) was measured in 6 regions of brain and liver of young adult, middle-aged and aged rats. GSH levels were significantly lower in cortex, cerebellum, striatum, thalamus and hippocampus of aged rats, while no changes were observed in liver as compared to young adult rats. On the other hand, lipid peroxidation as measured by thiobarbituric acid-reactive products increased significantly in all the regions of brain examined and in the liver of aged rats. Since GSH plays an important role as a cellular protectant against oxygen radical-mediated injury, decreased levels of GSH in aged rat brain are indicative of the vulnerability of the aged cerebral tissue to oxidative injury.
منابع مشابه
The effect of regular high-intensity interval exercise on some apoptotic factors in the brain tissue of old female rats
Background: The aging process is associated with a progressive deterioration of tissues and organs. Apoptotic cell death has been known as a possible causal factor in age-related pathologies. Therefore, this study was conducted to assess the effect of regular high-intensity interval exercise on some apoptotic factors in the brain tissue of aged female rats. Materials and Methods: In this exper...
متن کاملEffect of taurine treatment on pro-oxidant-antioxidant balance in livers and brains of old rats.
The effect of taurine treatment on antioxidant defense in liver and brain tissues of old rats was investigated. Endogenous malondialdehyde (MDA) and diene conjugate (DC), ascorbic acid (AA)- and NADPH-induced lipid peroxide levels as well as non-enzymatic (glutathione--GSH, vitamin E and vitamin C) and enzymatic antioxidants (superoxide dismutase, glutathione peroxidase and glutathione transfer...
متن کاملAntioxidant Effect of Terminalia Chebula Aqueous Extract on Age-Related Oxidative Stress in Heart
Reactive oxygen species (ROS) are generated by normal metabolic processes or from exogenous insults and chemical agents. They are capable of damaging essential biomolecules and accelerating cancer, cardiovascular diseases and neurodegenerative diseases. In the present study, the antioxidant role of Terminalia chebula aqueous extract was evaluated against age-related oxidative stress in heart ...
متن کاملALTERATIONS OF ADP-RIBOSYLATION AND DNA-BREAKS IN AGING BRAIN CELLS
Neuronal and astroglial cells were prepared from whole brain of three month and 30-month- old rats for study of alterations in the nuclear poly ADP-ribosylation and DNA breaks with age. The relative purity of the cell preparations was confirmed by the determination of the neurofilament (low molecular weight) and glutamine synthetase content of the cells using ELISA. An increase (75%) in th...
متن کاملEffect of Oleuropein Extract from Olive on Brain Oxidative Stress in Ovariectomized Diabetic Rats
Background and objectives: Increased oxidative stress and altered antioxidant levels play an essential role in the pathogenesis of diabetes mellitus. Menopause is associated with increased food intake, weight gain, metabolic disorders, and increased level of inflammatory and oxidative stress factors. This study evaluated effects of oleuropein extract on brain tissue and serum oxidative status i...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
- Neuroscience letters
دوره 101 2 شماره
صفحات -
تاریخ انتشار 1989