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Research & Reviews: A Journal of Drug Design & Discovery Original Research

A Research Study on Cognitive Health Benefits of Nicotine to the Human Body

  1. Mekkanti Manasa Rekha Department of Pharmacy Practice, Aditya Bangalore Institute of Pharmacy Education and Research, Bangalore
  2. Soumitra Das Department of Pharmacy Practice, Aditya Bangalore Institute of Pharmacy Education and Research, Bangalore

Abstract

Background: Nicotine has been primarily known for its addictive properties and associated health risks, particularly in tobacco products. However, recent research has highlighted nicotine’s potential cognitive health benefits, especially in neurodegenerative diseases like Alzheimer’s and Parkinson’s. This study investigates smoking prevalence across mental health conditions, and cognitive impairments in various psychiatric disorders, and explores the possible cognitive health benefits of nicotine.

Methods: Data on age and gender distribution, smoking prevalence, and cognitive impairments were analyzed. The study also utilized meta-analyses to examine the effect sizes of cognitive deficits in different mental health conditions, including schizophrenia, bipolar disorder, major depressive disorder, PTSD, ADHD, and substance use disorders. Additionally, p-value calculations were conducted to evaluate the statistical significance of the observed differences.

Results: Population distribution males represented 91.87% of the population, with the majority falling within the 18–30 age group. Females made up only 8.12%, predominantly in the 18–30 age group. Smoking Prevalence: The highest smoking prevalence was observed among individuals with substance use disorders (SUD), particularly opiate users (>98%) and cocaine users (80–90%). Schizophrenia showed smoking rates ranging from 54-89%, while bipolar disorder, major depressive disorder, PTSD, and ADHD exhibited substantial smoking rates (50–70%). Cognitive deficits schizophrenia displayed large deficits in executive functioning, working memory, attention/vigilance, episodic memory, and language. Bipolar disorder and major depressive disorder showed moderate deficits in working memory, attention, and processing speed. PTSD had severe deficits in verbal memory, while ADHD and substance use disorders exhibited moderate deficits in working memory, attention, language, and cognitive impulsivity. Nicotine’s cognitive benefits, nicotine was found to enhance memory and cognitive function through modulation of key brain pathways, such as the phosphoinositide 3-kinase/Akt pathway and thyroid receptor signaling. It also promotes synaptic plasticity via chromatin modification and protein kinase activation. P-Value Analysis: The calculated pvalue (0.1336) was greater than the significance level (α = 0.05), indicating that the observed associations were not statistically significant.

Conclusions: Nicotine has shown potential cognitive health benefits, particularly in individuals with neurodegenerative conditions. However, its cognitive-enhancing effects must be weighed against the risks associated with smoking and nicotine addiction. The study highlights the need for further research on controlled, non-addictive nicotine delivery methods to explore its therapeutic applications safely. Addressing research gaps related to long-term cognitive effects, nicotine delivery methods, and diverse population studies will contribute to a more nuanced understanding of nicotine’s role in cognitive health.

Keywords

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