Related Experiment Video
Updated: Jan 22, 2026

06:07
Cigarette Smoke Exposure in Mice using a Whole-Body Inhalation System
Published on: October 22, 2020
7.6K
The Neuro-Psychological Axis of Smoking-Associated Cancer
1Department of Biomedical & Diagnostic Sciences, College of Veterinary Medicine, University of Tennessee, 2407 River Drive, Knoxville, TN 37996, USA.
Summary
Smoking and psychological stress promote cancer by activating cAMP signaling. Reducing stress through methods like meditation or yoga can inhibit this pathway, aiding cancer treatment.
Area of Science:
- Oncology
- Neuroscience
- Cell Biology
Background:
- Smoking and psychological stress influence cancer growth.
- These factors modulate regulatory networks in epithelial cells and cancers.
- Cancer-stimulating neurotransmitters and inhibiting agents like GABA and opioids are involved.
Purpose of the Study:
- To review the synergistic effects of smoking and stress on cancer growth.
- To highlight the role of cAMP signaling in smoking-associated cancers.
- To explore stress reduction strategies for cancer treatment.
Main Methods:
- Literature review of preclinical studies.
- Analysis of signaling pathways involving beta-adrenergic receptors (β-ARs) and cAMP.
- Examination of neurotransmitter and neuroinhibitor roles.
Main Results:
- Hyperactive cAMP signaling, driven by β-ARs, is a key factor in smoking-related cancers.
- Psychological stress exacerbates these effects, while stress reduction mitigates them.
- Synergistic interactions between smoking and stress impact cellular growth regulation.
Conclusions:
- Integrating stress reduction (pharmacological, psychological) into cancer therapy is recommended.
- Reducing cAMP levels via stress management can be a viable therapeutic strategy.
- Further research into the interplay of smoking, stress, and cancer pathways is warranted.
Related Concept Videos
Hypothalamic-Pituitary Axis
65.7K
The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
65.7K
Perpendicular-Axis Theorem
4.5K
The perpendicular-axis theorem states that the moment of inertia of a planar object about an axis perpendicular to its plane is equal to the sum of the moments of inertia about two mutually perpendicular concurrent axes lying in the plane of the body.
Consider a circular disc of mass M and radius R lying along an x-y plane. The origin lies at the center of the disc, and the z-axis is perpendicular to the disc's plane. All three axes coincide at the disc's center. The moment of inertia of this...
Consider a circular disc of mass M and radius R lying along an x-y plane. The origin lies at the center of the disc, and the z-axis is perpendicular to the disc's plane. All three axes coincide at the disc's center. The moment of inertia of this...
4.5K
Parallel-axis Theorem
8.2K
The parallel-axis theorem provides a convenient and quick method of finding the moment of inertia of an object about an axis parallel to the axis passing through its center of mass. Consider a thin rod as an example. There is a striking similarity between the process of finding the moment of inertia of a thin rod about an axis through its middle, where the center of mass lies, and about an axis through its end using the conventional method. In the conventional method, the concept of linear mass...
8.2K
Defining Psychology
7.6K
Psychology is the scientific discipline dedicated to understanding both observable behavior and the internal mental processes underlying such behavior. It aims to comprehend human nature and apply this understanding to solve practical problems, enhance well-being, and improve societal outcomes. An example of psychology's application is the study of prosocial behavior, such as why and under what conditions individuals might help strangers in need. This process involves describing observed...
7.6K
Psychology as a Science
3.8K
Psychology, as a scientific discipline, aims to understand the mind and behavior through rigorous and systematic methods. The foundation of psychological research is evidence-based, relying heavily on the scientific method to derive and validate knowledge. This structured approach ensures that findings are reliable, valid, and applicable to broader contexts.
The scientific method in psychology involves six critical steps: making observations, formulating hypotheses, conducting tests, analyzing...
The scientific method in psychology involves six critical steps: making observations, formulating hypotheses, conducting tests, analyzing...
3.8K
Freudian Psychology
2.4K
Sigmund Freud, an Austrian neurologist born in 1856, significantly influenced psychology through his exploration of the unconscious mind. His interest in patients suffering from hysteria and neurosis — conditions without apparent physical causes — led him to theorize the existence of an unconscious mind, a repository for feelings and urges beyond our awareness. Freud's innovative approach included techniques such as dream analysis, free association, and attention to slips of the...
2.4K

