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Iranian Journal of Basic Medical Sciences، جلد ۲۶، شماره ۶، صفحات ۷۲۵-۷۳۰
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عنوان انگلیسی Chronic stress-induced apoptosis is mitigated by young mitochondria transplantation in the prefrontal cortex of aged rats
چکیده انگلیسی مقاله Objective(s): Apoptosis is common and often comorbid with aging and stress-related mood disorders. Evidence suggests that fresh mitochondria could reverse age-related dysfunctions in organs, especially in the brain. Therefore, this study investigated the effect of young mitochondria administration on the apoptosis process in the prefrontal cortex (PFC) of aged rats exposed to chronic stress. Materials and Methods: Aged (22 months old) male rats were randomly assigned into four groups: aged control (AC), aged rats treated with young mitochondria (A+M), aged rats subjected to chronic stress for four weeks (A+St), and aged rats subjected to chronic stress and treated with young mitochondria (A+St+M). A+M and A+St+M groups received a single ICV injection (10 μl) of fresh mitochondria isolated from the brain of young rats for five minutes (2 µl/min). Finally, the levels of Malondialdehyde (MDA), Cytochrome c (Cyt c), Bax, Bcl-2, and Caspase-3 expression were investigated in the PFC.Results: Young mitochondria administration reduced neuronal apoptosis in the PFC, associated with down-regulation of MDA, Bax, and Caspase-3 and up-regulation of Bcl-2. Moreover, fresh mitochondria partially improved the chronic stress-induced mitochondrial dysfunction in aged rats, as indicated by reduced cytochrome c (Cyt c) release from the mitochondria.Conclusion: These results suggest mitotherapy could reverse cell viability and mitochondrial dysfunction-induced apoptosis in the PFC tissue of aged rats subjected to stressful stimuli.
کلیدواژه‌های انگلیسی مقاله Aging, Apoptosis, Chronic stress, Mitochondria - administration, Oxidative stress, Rats
نویسندگان مقاله | Gonja Javani
Drug Applied Research, Tabriz University of Medical Sciences, Tabriz, Iran


| Arshad Ghaffari-Nasab
Drug Applied Research, Tabriz University of Medical Sciences, Tabriz, Iran


| Fereshteh Farajdokht
Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran


| Gisou Mohaddes
Drug Applied Research, Tabriz University of Medical Sciences, Tabriz, Iran|Department of Biomedical Education, California Health Sciences University, College of Osteopathic Medicine, Clovis, CA, USA
نشانی اینترنتی https://ijbms.mums.ac.ir/article_22167.html
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