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Modulation of Transient Receptor Potential Vanilloid Subtype 1 (TRPV<sub>1</sub>) and Norepinephrine Transporters (NET) Protect Against Oxidative Stress, Cellular Injury, and Vascular Dementia

Authors: Surbhi Gupta; Bhupesh Sharma; Prabhat Singh; Brij Mohan Sharma;

Modulation of Transient Receptor Potential Vanilloid Subtype 1 (TRPV<sub>1</sub>) and Norepinephrine Transporters (NET) Protect Against Oxidative Stress, Cellular Injury, and Vascular Dementia

Abstract

Chronic cerebral hypoperfusion (CCH) is a risk factor for the development of vascular dementia (VaD). CCH participates in a negative role in cognitive impairments. Transient receptor potential vanilloid subtype 1 (TRPV1) participates in cognition, ischemic damage and neuroprotection. Selective norepinephrine transporter (NET) inhibitors have a role in cognitive dysfunction and oxidative stress. The role of TRPV1 and NET in CCH induced VaD is still unknown. The present study has been structured to investigate the role of vanillin; a selective agonist of TRPV1 as well as atomoxetine; a selective NET inhibitor in CCH induced VaD in mice. Permanent bilateral common carotid arteries ligation or two vessel occlusion (2VO) technique was used to induce a stage of chronic cerebral hypoperfusion in mice. 2VO animals have shown significant impairment of locomotion (Actophotometer), motor coordination (Rota rod), learning and memory (Morris water maze). 2VO animals have shown significant reduction in brain catalase, glutathione, and superoxide dismutase, with significant increase in brain infarct size (TTC staining), malondialdehyde and acetyl cholinesterase-AChE activity. Whereas, administration of vanillin as well as atomoxetine has significantly attenuated 2VO induced impaired locomotion, motor coordination, learning and memory, brain damage, brain oxidative stress and higher AChE activity. It may be concluded that 2VO induced CCH has elicited VaD, which was attenuated by vanillin and atomoxetine. Thus, modulators of vanilloid receptors and norepinephrine transporter may be explored further for their benefits in CCH induced VaD.

Related Organizations
Keywords

Male, Norepinephrine Plasma Membrane Transport Proteins, Adrenergic Uptake Inhibitors, Propylamines, Dementia, Vascular, Brain, TRPV Cation Channels, Atomoxetine Hydrochloride, Antioxidants, Brain Ischemia, Disease Models, Animal, Mice, Oxidative Stress, Benzaldehydes, Animals, Female, Maze Learning

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Powered by OpenAIRE graph
citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
33
Top 10%
Top 10%
Top 10%