Neuroprotective Effect of Cannabidiol Against Hydrogen Peroxide in Hippocampal Neuron Culture

Introduction: Hyperglycemia on neuron cell culture occurs when the cells are induced by 25 mM of glucose. Hyperglycemia state will increase intracellular Ca2+ that leads to increased of oxidative stress in the cell. This causes the activation of antioxidant enzymes by Nrf2 protein. Amlodipine act on nerve cells through bounding with L-Type Calcium Channel (LTCC). 5 µM of amlodipine has neuroprotective effect on cell culture of neuron by inhibiting cell death. Aim: The purpose of this research is to know the effect of treating amlodipine dose 5 μM towards expression of the protein Nrf2 in SH-SY5Y cell culture induced by 25 mM glucose. Methods: In this research on neuron cell culture induced 25 mM glucose within 6 days and treated with amlodipine and without amlodipine 5 µM. Results: Based on research results obtained test results independent t test (p = 0,324) that there is no change of the Nrf2 expression significant between a given neuron cell culture with amlodipine without amlodipine. Spearman correlation test showed (r = 0.290; p = 0.361) that treating by amlodipine 5 µM not significantly increasing Nrf2 expression. Conclusion: Based on this study it can be concluded that treating by amlodipine 5 µM not give effect against Nrf2 expression on neuron cell culture induced 25 mM glucose.

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NEUROPROTECTIVE EFFECT OF ARTOCARPUS LAKOOCHA EXTRACT AND OXYRESVERATROL AGAINST HYDROGEN PEROXIDE-INDUCED TOXICITY IN SH-SY5Y CELLS

International Journal of Pharmacy and Pharmaceutical Sciences ◽

10.22159/ijpps.2017v9i11.21827 ◽

2017 ◽

Vol 9 (10) ◽

pp. 229 ◽

Cited By ~ 1

Author(s):

Hasriadi . ◽

Matusorn Wong-on ◽

Phakhamon Lapphanichayakool ◽

Nanteetip Limpeanchob

Keyword(s):

Hydrogen Peroxide ◽

Lipid Peroxidation ◽

Cell Viability ◽

Mitochondrial Function ◽

Neuroprotective Effect ◽

Neuroblastoma Cells ◽

Effective Protection ◽

Intracellular Ros ◽

Medical Plant ◽

Continuous Presence

Objective: Artocarpus lakoocha Roxb. is a traditional medical plant native to Southeast Asia and used as a dried aqueous extract so-called puag haad. Its role (and its major ingredient, oxyresveratrol) as an antioxidant neuroprotectant were explored.Methods: Differentiated SH-SY5Y neuroblastoma cells in 96-well plates were challenged with 200 µM H2O2 for 4 h and either Trolox (100 µM), oxyresveratrol (5-100 µM), or puag haad (1.2-25 µg/ml) applied 2 h before H2O2 or for 20 h after H2O2 washout. Cell viability, mitochondrial function, intracellular ROS, and lipid peroxidation were assessed.Results: Continuous presence of both H2O2 and antioxidant reduced mitochondrial function by ~50% but only by 30% with antioxidant. Sustained 24 h H2O2 showed no recoveries with antioxidants. Cell viability was modestly restored when antioxidants accompanied H2O2 for 4 h and both washed for another 20 h, but little recovery of mitochondrial function even though antioxidants removed ROS and prevent lipid peroxidation. Antioxidants added for 20 h after H2O2 marginally improve mitochondria and modestly restore cell viability, but lipid peroxidation was completely reversed.Conclusion: These results show that mitochondrial protection was illusive, yet both tested compounds, puag haad and oxyresveratrol, improved cell viability and especially ROS levels and lipid peroxidation. The potency oxyresveratrol on the redox-sensitive expression of antioxidant enzymes and its pharmacokinetics suggests that oral puag haad could provide effective protection in transient neurodegenerative disease.

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