Related Experiment Video
Updated: Jul 7, 2026
07:34
Induction of Acute Ischemic Stroke in Mice Using the Distal Middle Artery Occlusion Technique
Published on: December 15, 2023
Dietary supplementation exerts neuroprotective effects in ischemic stroke model
Takao Yasuhara1, Koichi Hara, Mina Maki
1Department of Neurology, Medical College of Georgia, Augusta, Georgia 30912, USA. cborlongan@mail.mcg.edu
Rejuvenation Research
|February 12, 2008
Summary
Dietary supplementation with NT-020, containing blueberry and green tea extracts, significantly reduced stroke damage and improved neurological function in rats. This neuroprotective effect was linked to increased cell proliferation and neurogenesis following ischemic stroke.
Area of Science:
- Neuroscience
- Pharmacology
- Stroke Research
Background:
- Ischemic stroke is a leading cause of death and disability worldwide.
- Current treatments for ischemic stroke are limited, highlighting the need for neuroprotective strategies.
- Dietary components have shown potential in mitigating various health conditions, including neurological disorders.
Purpose of the Study:
- To investigate the neuroprotective effects of NT-020, a dietary supplement, against ischemic stroke.
- To evaluate the impact of NT-020 on functional recovery, brain lesion size, and neurogenesis post-stroke.
Main Methods:
- Adult male Sprague-Dawley rats were administered NT-020 or vehicle daily for two weeks.
- Ischemic stroke was induced via transient middle cerebral artery occlusion (MCAo).
- Functional recovery was assessed using behavioral tests, and brain tissue was analyzed for glial scar area, cell proliferation (BrdU+ cells), and neurogenesis markers (BrdU/doublecortin, BrdU/GFAP).
Main Results:
- NT-020 treatment significantly reduced motor asymmetry (11.8%) and neurological dysfunction (24.4%) post-stroke.
- A substantial 75% decrease in glial scar area was observed in NT-020 treated rats.
- NT-020 significantly increased cell proliferation in the subventricular zone and penumbra, and enhanced neurogenesis, indicated by increased BrdU/doublecortin co-labeling and upregulation of endogenous neurogenic factors.
Conclusions:
- Pre-stroke administration of NT-020 demonstrates significant neuroprotective effects against ischemic stroke in a rat model.
- NT-020 promotes neurogenesis and reduces glial scarring, contributing to functional recovery.
- These findings suggest NT-020 holds promise as a dietary intervention for stroke prevention or treatment.
Related Concept Videos
01:15Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...
01:15Ischemic Stroke l: Introduction
Ischemic stroke is an acute cerebrovascular condition in which blood flow to a brain region is suddenly interrupted, leading to tissue infarction. Neurons depend on continuous oxygen and glucose supply, so even brief reductions in perfusion cause energy failure, ionic imbalance, and irreversible injury. Ischemic strokes are classified into thrombotic and embolic types based on their underlying mechanisms.Thrombotic MechanismsThrombotic stroke develops when a clot forms within a cerebral artery.