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Brain Insulin Resistance: Targeting PI3K/AKT/GSK3 Pathway In Intracerebroventricular-streptozocin Induced Rat Model Of Alzheimers Disease | 99449
ISSN: 2161-0460

Journal of Alzheimers Disease & Parkinsonism
Open Access

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Brain insulin resistance: Targeting PI3K/AKT/GSK3 pathway in intracerebroventricular-streptozocin induced rat model of Alzheimers disease

12th International Conference on Alzheimer's Disease & Dementia

Ansab Akhtar

UIPS, Panjab University, India

Posters & Accepted Abstracts: J Alzheimers Dis Parkinsonism

DOI: 10.4172/2161-0460-C7-055

Abstract
Alzheimer???s disease (AD) featuring dementia, cognitive deficits and behavioral alterations is one of the most common prevalent neurodegenerative diseases affecting majorly elderly people termed as sporadic AD. Global prevalence of AD is sharply increasing, expected to affect almost 115 million people by 2050. Down regulation of insulin signaling pathway of PI3K-AKT plays a significant role in the pathophysiology of AD. Intracerebroventricular streptozocin as a model of sporadic Alzheimer???s disease is being established. Animals are divided into various groups comprising normal control, sham control, diseased and drug treated groups. Protocol lasts for 21 days, sacrificing animals on the 22nd day followed by isolation of serum and dissection of cortex and hippocampus, preserving the same for further analysis. Behavioral studies, biochemical estimations and molecular techniques are done for evaluating several parameters of control, diseased and treated groups of animals. Behavioral studies like Morris water maze, novel object recognition and actophotometer are performed for cognition, memory and locomotor activity. Biochemical estimations for antioxidant activity are performed by glutathione reductase assay, catalase assay, glutathione S-transferase assay, lipid peroxidation assay, superoxide dismutase assay and protein carbonylation assay. Protein concentrations are determined by biuret method. Cholinergic activity is determined by acetylcholinesterase assay. Inflammatory cytokines like TNF-? and IL-6 are determined by ELISA method. Mitochondrial dysfunction is evaluated by estimating mitochondrial enzyme complex I, II, III and IV. Histopathology is done. Molecular techniques like western blotting for Akt protein and RT-PCR for PI3-K, AKT, p-AKT, NF-?? and GSK 3-? is performed for gene expression analysis.
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