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Noscapine alleviates cerebral damage in ischemia-reperfusion injury in rats

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Abstract

With high unmet medical needs, stroke remains an intensely focused research area. Although noscapine is a neuroprotective agent, its mechanism of action in ischemic-reperfusion (I-R) injury is yet to be ascertained. We investigated the effect of noscapine on the molecular mechanisms of cell damage using yeast, and its neuroprotection on cerebral I-R injury in rats. Yeast, both wild-type and Δtrx2 strains, was evaluated for cell growth and viability, and oxidative stress to assess the noscapine effect at 8, 10, 12, and 20 μg/ml concentrations. The neuroprotective activity of noscapine (5 and 10 mg/kg; po for 8 days) was investigated in rats using middle cerebral artery occlusion-induced I-R injury. Infarct volume, neurological deficit, oxidative stress, myeloperoxidase activity, and histological alterations were determined in I-R rats. In vitro yeast assays exhibited significant antioxidant activity and enhanced cell tolerance against oxidative stress after noscapine treatment. Similarly, noscapine pretreatment significantly reduced infarct volume and edema in the brain. The neurological deficit was decreased and oxidative stress biomarkers, superoxide dismutase activity and glutathione levels, were significantly increased while lipid peroxidation showed significant decrease in comparison to vehicle-treated I-R rats. Myeloperoxidase activity, an indicator of inflammation, was also reduced significantly in treated rats; histological changes were attenuated with noscapine. The study demonstrates the protective effect of noscapine in yeast and I-R rats by improving cell viability and attenuating neuronal damage, respectively. This protective activity of noscapine could be attributed to potent free radical scavenging and inhibition of inflammation in cerebral ischemia-reperfusion injury.

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Abbreviations

tPA:

Tissue plasminogen activator

FDA:

Food and Drug Administration

MCAO:

Middle cerebral artery occlusion

I-R:

Ischemia-reperfusion

H2O2 :

Hydrogen peroxide

YPD:

Yeast extract, peptone, dextrose

WT:

Wild type

TRX2:

Thioredoxin-2

ROS:

Reactive oxygen species

NOS:

Noscapine

SOD:

Superoxide dismutase

GSH:

Glutathione reductase

LPO:

Lipid peroxidation

MPO:

Myeloperoxidaseactivity

BBB:

Blood-brain barrier

TTC:

2,3,5-Triphenyltetrazolium chloride

DTNB:

5,5′-Dithiobis-2-nitrobenzoic acid

TCA:

Trichloroacetic acid

MDA:

Malondialdehyde

EB:

Evans blue

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Acknowledgments

I would like to thank all members of the Chaperone and Stress Biology Lab, Department of Biological Sciences, Institute of Science Education and Research (IISER), Bhopal, MP, India, for the research facilities and their support.

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Authors

Contributions

MK performed the experiments and data analysis and wrote the manuscript. VD, CS, and ASM helped with the data analysis and contributed to the correction of the manuscript. VS and CT contributed to the correction of the manuscript. VD and CS designed and supervised the entire project. All authors read and approved the manuscript and all data were generated in-house and that no paper mill was used.

Corresponding author

Correspondence to Vipin V. Dhote.

Ethics declarations

All animal procedures were approved by the Institutional Animal Ethics Committee of the VNS Institute of Pharmacy, Bhopal (Madhya Pradesh, India) (Protocol No. PH/IAEC/2K14/007).

Conflict of interest

The authors declare that they have no conflicts of interest.

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Kawadkar, M., Mandloi, A.S., Saxena, V. et al. Noscapine alleviates cerebral damage in ischemia-reperfusion injury in rats. Naunyn-Schmiedeberg's Arch Pharmacol 394, 669–683 (2021). https://doi.org/10.1007/s00210-020-02005-x

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  • DOI: https://doi.org/10.1007/s00210-020-02005-x

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