Acrylamide Exposure Exacerbates Type 2 Diabetes-Induced Neurotoxicity: An Integrated Neurobehavioral and Molecular...

Area of Science:

• Neuroscience
• Toxicology
• Metabolic Disorders

Background:

• Type 2 Diabetes Mellitus (T2DM) is linked to cognitive impairment due to hyperglycemia-induced oxidative stress, neuroinflammation, and neuroapoptosis.
• Acrylamide (ACY), a neurotoxicant in food and smoke, may exacerbate these neurological issues.

Purpose of the Study:

• To investigate the combined effects of T2DM and ACY exposure on cognitive function, neurodegeneration, oxidative stress, neuroinflammation, and neuroapoptosis in a rat model.
• To elucidate the neurotoxic amplification of T2DM and ACY.

Main Methods:

• T2DM induced using nicotinamide and streptozotocin in rats.
• Rats received daily oral ACY doses for one month.
• Cognitive function assessed via EPM, NOR, and Y-maze tests.
• Brain tissue analyzed for markers of neurodegeneration, oxidative stress, neuroinflammation, and neuroapoptosis.
• Immunohistochemistry used to assess structural brain changes.

Main Results:

• Combined T2DM and ACY exposure significantly worsened cognitive deficits.
• Elevated markers of neurodegeneration, oxidative stress (MDA), neuroinflammation (COX-2, PGE2), and neuroapoptosis (Bax, Caspase-3) were observed.
• Increased Bcl-6 expression indicated structural brain changes.

Conclusions:

• T2DM and ACY exposure synergistically amplify neurotoxic effects, leading to cognitive decline and neuronal damage.
• Public health strategies to reduce ACY exposure are crucial, especially for T2DM populations.
• Further research into neuroprotective interventions is warranted.