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Related Concept Videos

Other Pulmonary Disorders01:17

Other Pulmonary Disorders

Respiratory disorders encompass a range of conditions with varying levels of severity. Asthma, marked by chronic airway inflammation and hypersensitivity, is one such condition. It can lead to airway obstruction due to factors like bronchial spasms, mucosal edema, increased mucus secretion, or epithelial damage. Asthma triggers are diverse, ranging from allergens to emotional upset, and treatment focuses on both immediate relief through bronchodilators and long-term inflammation suppression.
Chemotherapy-Induced Nausea and Vomiting: Cannabinoids01:21

Chemotherapy-Induced Nausea and Vomiting: Cannabinoids

Tetrahydrocannabinol (THC) is a phytocannabinoid that primarily interacts with the CB1 receptor, a type of G protein-coupled receptor (GPCR) predominantly in and around the chemoreceptor trigger zone (CTZ) and emetic center. THC also blocks the serotonin receptor activity in the dorsal vagal complex (DVC) by inhibiting serotonin release. THC exerts its anti-emetic effects through these interactions, which are beneficial for patients undergoing chemotherapy.
Two synthetic agonists of THC,...
CNS Stimulants: Cocaine, Amphetamines and Cannabinoids01:24

CNS Stimulants: Cocaine, Amphetamines and Cannabinoids

CNS stimulants, such as cocaine, amphetamines, and cannabinoids, have varying structures and mechanisms of action that lead to different therapeutic effects and side effects. Cocaine, with its molecular formula C17H21NO4, is a tropane alkaloid and a tertiary amino compound. It has two chemical forms: the hydrochloride salt and the "freebase." The former is in powder form, while the latter involves removing the hydrochloride salt to create a form that can be smoked. Cocaine exerts its effects by...
Stimulants01:29

Stimulants

Stimulants are substances that enhance neural activity and elevate dopamine levels in the brain, leading to their highly addictive nature. These drugs include cocaine, amphetamines, MDMA, caffeine, and nicotine, each with distinct mechanisms of action and varied health implications.
Cocaine can be administered via snorting, injection, or smoking. It primarily functions by blocking the reuptake of dopamine, resulting in a euphoric high characterized by an intense sensation of happiness and...
Chronic Obstructive Pulmonary Disease I: Introduction01:23

Chronic Obstructive Pulmonary Disease I: Introduction

Chronic obstructive pulmonary disease is a common, preventable, and treatable respiratory disorder characterized by persistent symptoms and progressive airflow limitation. This limitation results from a combination of small-airway disease (obstructive bronchiolitis) and parenchymal destruction (emphysema), both driven by chronic inflammation from exposure to harmful particles or gases.The disease includes two main pathological entities: emphysema, marked by destruction of alveolar walls and...
Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features01:24

Chronic Obstructive Pulmonary Disease III: Chronic Bronchitis Features

Chronic bronchitis is a key phenotype of chronic obstructive pulmonary disease (COPD), characterized by airway-centered inflammation and mucus overproduction. It develops from long-term exposure to harmful particles or gases, most commonly cigarette smoke, which triggers a persistent inflammatory response.Cellular and Structural ChangesInflammation initially affects the large bronchi and later the smaller airways, with infiltration by immune cells, including neutrophils, macrophages, and...

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Related Experiment Video

Updated: Jun 6, 2026

Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates
06:09

Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates

Published on: May 30, 2025

Cannabis and the lung.

P T Reid1, J Macleod, J R Robertson

  • 1General Hospital, Crewe Road, Edinburgh, UK. peter.reid@luht.scot.nhs.uk

The Journal of the Royal College of Physicians of Edinburgh
|December 7, 2010
PubMed
Summary
This summary is machine-generated.

Cannabis smoking may pose risks to lung health, potentially contributing to chronic obstructive pulmonary disease and respiratory infections. Further research is needed to understand the full impact of cannabis use on respiratory health.

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Related Experiment Videos

Last Updated: Jun 6, 2026

Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates
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Development of a Preclinical Inhalation Model to Test Vaporized Cannabis Distillates

Published on: May 30, 2025

In vitro Cannabis Exposures of Lung Epithelial Cells at the Air-Liquid Interface
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Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study
07:30

Brain Morphology of Cannabis Users With or Without Psychosis: A Pilot MRI Study

Published on: August 18, 2020

Area of Science:

  • Pulmonology
  • Public Health
  • Cannabis Research

Background:

  • Cannabis use is widespread, particularly among young people, and often perceived as safe.
  • Research on cannabis primarily focuses on mental health effects, neglecting potential respiratory impacts.
  • Epidemiological studies on cannabis are complex due to confounding factors like tobacco use.

Purpose of the Study:

  • To review the emerging evidence on the adverse respiratory effects of habitual cannabis smoking.
  • To highlight the under-researched area of cannabis's impact on lung health.
  • To inform healthcare professionals about potential pulmonary risks associated with cannabis use.

Main Methods:

  • Review of existing epidemiological and clinical studies on cannabis and respiratory health.
  • Analysis of biological plausibility for cannabis-related lung conditions.
  • Consideration of confounding factors in cannabis research.

Main Results:

  • Habitual cannabis smoking is associated with potential risks including chronic obstructive pulmonary disease (COPD), pneumothorax, and respiratory infections.
  • Cannabis use may increase susceptibility to infections like tuberculosis.
  • There is a growing concern among chest physicians regarding these respiratory effects.

Conclusions:

  • Cannabis smoking may contribute to significant respiratory diseases, contrary to its common perception of safety.
  • Lung cancer risk associated with cannabis smoking warrants special attention due to biological plausibility.
  • More research is crucial to establish definitive links and understand the long-term respiratory consequences of cannabis use.