Ascorbic Acid ameliorates nicotine exposure induced impaired spatial memory performances in rats

Area of Science:

• Neuroscience
• Developmental Biology
• Pharmacology

Background:

• Prenatal exposure to nicotine is known to cause long-lasting behavioral and cognitive impairments in offspring.
• Animal models confirm these detrimental effects, highlighting the need for potential interventions.

Purpose of the Study:

• To investigate the protective effects of ascorbic acid against prenatal nicotine exposure-induced behavioral deficits in male rat offspring.
• To assess the impact of ascorbic acid on cognitive function following gestational nicotine exposure.

Main Methods:

• Pregnant Wistar rats were divided into control, vehicle control, nicotine, and nicotine+ascorbic acid groups.
• Nicotine (0.96 mg/kg/day) was administered subcutaneously throughout gestation; ascorbic acid (50 mg/kg/day) was given orally in the combined treatment group.
• Cognitive function in male offspring was evaluated at postnatal day 40 using the Morris water maze test.

Main Results:

• Prenatal nicotine exposure significantly altered spatial learning and memory in male offspring.
• Ascorbic acid treatment during gestation ameliorated the cognitive impairments induced by prenatal nicotine exposure.

Conclusions:

• Ascorbic acid supplementation demonstrates efficacy in partially preventing cognitive deficits associated with prenatal nicotine exposure in rat offspring.
• These findings suggest a potential therapeutic role for ascorbic acid in mitigating developmental neurotoxicity from nicotine exposure.