Title:Nepeta binaludensis Jamzad Attenuates Neuronal Injury Induced by
Oxygen-Glucose-Serum Deprivation/Reperfusion in PC12 Cells
Volume: 20
Issue: 1
Author(s): Farshad Mirzavi, Arezoo Rajabian*, Hassan Rakhshandeh and Seyed Mostafa Moshirian Farahi
Affiliation:
- Department of Internal Medicine, Faculty of Medicine, Mashhad University of Medical Sciences, Mashhad, Iran
- Pharmacological Research Center of Medicinal Plants, Mashhad University of Medical Sciences, Mashhad, Iran
Keywords:
Nepeta binaludensis, oxygen-glucose deprivation/reperfusion (OGD/R), apoptosis, antioxidant, neuroprotection, fluorimetry.
Abstract:
Background: Nepeta binaludensis Jamzad is a perennial medicinal plant with various pharmacological
effects. However, the neuroprotective effects of Nepeta binaludensis extracts have not yet been
investigated. This study aimed to examine the effects of N. binaludensis hydro-alcoholic extract (NBE) on
oxidative stress markers and apoptosis-related proteins in PC12 cells exposed to oxygen-glucose deprivation/
reperfusion (OGD/R).
Methods: PC12 cells were pretreated with NBE (at a concentration range of 10-200 μg/ml) before exposure
to the OGD condition for 6 h, followed by a 24 h reoxygenation. Cell viability, the production of the
reactive oxygen species (ROS), lipid peroxidation (LPO), and the levels of apoptosis-related proteins
were evaluated using MTT, fluorimetry, and western blot analysis, respectively.
Results: Survival of the cells preincubated for 6 h with NBE increased to 90.20 ± 15.62% compared with
those subjected to OGD/R alone (51.26 ± 7.77 %, p < 0.001). ROS formation was also decreased following
incubation with 200 μg/ml of NBE to 125.3 ± 18.38% compared to OGD/R group (356.9 ± 70.48%, p
< 0.001). LPO was also suppressed after incubation with NBE to 155.5 ± 21.21% compared to the
OGD/R group (260.5 ± 9.727%, p<0.001). NBE restored Bax/Bcl-2 ratio (1.3-fold of control), and
cleaved caspase-3 (1.58-fold of control, p < 0.001).
Conclusion: These results suggest that NBE may offer neuroprotection properties against OGD/Rinduced
toxicity through modulation of oxidative stress and apoptotic responses.