scholarly journals Protective Role of Hypoxia-Inducible Factor-2α against Ischemic Damage and Oxidative Stress in the Kidney

2007 ◽  
Vol 18 (4) ◽  
pp. 1218-1226 ◽  
Author(s):  
Ichiro Kojima ◽  
Tetsuhiro Tanaka ◽  
Reiko Inagi ◽  
Hideki Kato ◽  
Toshiharu Yamashita ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Hypoxia Inducible Factor ◽  
Protective Role ◽  
Ischemic Damage ◽  
And Oxidative Stress

Protective role of Sterculia tragacantha aqueous extract on pancreatic gene expression and oxidative stress parameters in streptozotocin-induced diabetic rats

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Basiru Olaitan Ajiboye ◽  
Babatunji Emmanuel Oyinloye ◽  
Jennifer Chidera Awurum ◽  
Sunday Amos Onikanni ◽  
Adedotun Adefolalu ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Body Weight ◽  
Protective Role ◽  
Diabetic Rats ◽  
Gene Expressions ◽  
Ki 67 ◽  
Oxidative Stress Parameters ◽  
And Oxidative Stress ◽  
Stress Parameters

Abstract Objectives The current study evaluates the protective role of aqueous extract of Sterculia tragacantha leaf (AESTL) on pancreatic gene expressions (insulin, PCNA, PDX-1, KI-67 and GLP-1R) and oxidative stress parameters in streptozotocin-induced diabetic rats. Methods Diabetes mellitus was induced into the experimental Wistar animals via intraperitoneal (IP) injection of streptozotocin (35 mg/kg body weight) and 5% glucose water was given to the rats for 24 h after induction. The animals were categorized into five groups of 10 rats each as follows normal control, diabetic control, diabetic rats administered AESTL (150 and 300 mg/kg body weight) and diabetic rats administered metformin (200 mg/kg) orally for two weeks. Thereafter, the animals were euthanized, blood sample collected, pancreas harvested and some pancreatic gene expressions (such as insulin, PCNA, PDX-1, KI-67, and GLP-1R)s as well as oxidative stress parameters were analyzed. Results The results revealed that AESTL significantly (p<0.05) reduced fasting blood glucose level, food and water intake, and lipid peroxidation in diabetic rats. Diabetic rats administered different doses of AESTL showed a substantial upsurge in body weight, antioxidant enzyme activities, and pancreatic gene expressions (insulin, PCNA, PDX-1, KI-67, and GLP-1R). Conclusions It can therefore be concluded that AESTL has the ability to protect the pancreas during diabetes mellitus conditions.

scholarly journals Protective Role of UCP2 in Oxidative Stress and Apoptosis during the Silent Phase of an Experimental Model of Epilepsy Induced by Pilocarpine

2018 ◽  
Vol 2018 ◽  
pp. 1-12 ◽  
Author(s):  
Marina Rascio Henriques Dutra ◽  
Regiane dos Santos Feliciano ◽  
Kalil Ribeiro Jacinto ◽  
Telma Luciana Furtado Gouveia ◽  
Eduardo Brigidio ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Protective Role ◽  
Negative Regulator ◽  
Antioxidant Enzyme Activities ◽  
Ucp2 Expression ◽  
Silent Phase ◽  
Ros Formation ◽  
Neuroprotective Actions ◽  
And Oxidative Stress

Neuroprotection is a desirable process in many neurological disorders, yet complex mechanisms involved in this field are not completely understood. The pilocarpine epilepsy model causes potent, seizure-induced excitotoxicity cell death and mitochondria impairment. The present study is aimed at investigating the role of UCP2, a ROS negative regulator, in the neuroprotection after cholinergic insult. Our data demonstrated that UCP2 expression was augmented in the rat hippocampus 3 days after status epilepticus (SE), reaching a peak on the fifth day, then returning to basal levels. Concomitantly, phospho-AKT expression levels were higher in the hippocampus during the early silent phase (5 days after SE). Additionally, it was demonstrated that the blockade of UCP2 by antisense oligonucleotides (ASO) in SE rats successfully diminished both UCP2 mRNA and protein contents. SE ASO rats presented increased mitochondrial proapoptotic factor expression, caspase-3 activity, inflammatory cytokine expression, and ROS formation. Moreover, ASO treatment diminished p-AKT expression and antioxidant enzyme activities after pilocarpine insult. In conclusion, the present results highlight the neuroprotective actions of UCP2, acting in the inhibition of apoptotic factors and oxidative stress, to increase neuron survival after SE onset.

Abstract 3731: TSC deficiency unmasks a novel protective role of RIP1/RIP3 signaling against mitochondrial and oxidative stress-induced cell death

2016 ◽  
Author(s):  
Piotr T. Filipczak ◽  
Cindy Thomas ◽  
Wenshu Chen ◽  
Andrew Salzman ◽  
Jacob D. McDonald ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cell Death ◽  
Protective Role ◽  
And Oxidative Stress

Studies on the Cardio Protective Role of Gallic Acid Against AGE-Induced Cell Proliferation and Oxidative Stress in H9C2 (2-1) Cells

2012 ◽  
Vol 12 (4) ◽  
pp. 304-311 ◽  
Author(s):  
S. Umadevi ◽  
V. Gopi ◽  
S. P. Simna ◽  
A. Parthasarathy ◽  
S. M. J. Yousuf ◽  
...  
Keyword(s):  
Oxidative Stress ◽  
Cell Proliferation ◽  
Gallic Acid ◽  
Protective Role ◽  
And Oxidative Stress

Protective role of curcumin on colchicine-induced cognitive dysfunction and oxidative stress in rats

2012 ◽  
Vol 31 (7) ◽  
pp. 686-697 ◽  
Author(s):  
S Khurana ◽  
S Jain ◽  
PK Mediratta ◽  
BD Banerjee ◽  
KK Sharma
Keyword(s):  
Oxidative Stress ◽  
Cognitive Dysfunction ◽  
Protective Role ◽  
And Oxidative Stress
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