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Updated: Feb 17, 2026

Assessment of Glutamine as a Fuel Source for Alveolar Macrophages Exposed to Chronic Ethanol Using an Extracellular Flux Bioanalyzer
Published on: November 15, 2024
The interaction between smoking, alcohol and the gut microbiome
Gabriele Capurso1, Edith Lahner1
1Digestive and Liver Disease Unit, Sant'Andrea Hospital, Faculty of Medicine and Psychology, Sapienza University of Rome, Italy.
Alcohol and smoking significantly alter the gastrointestinal microbiome, impacting gut health and liver disease risk. Further research is needed to understand these complex interactions and their effects on inflammation.
Area of Science:
- Gastroenterology and Microbiology
- Gut microbiome research
- Impact of lifestyle factors on gut health
Background:
- The gastrointestinal microbiome is a vital symbiotic ecosystem.
- It is influenced by factors like age, diet, alcohol, and smoking.
- These lifestyle factors can disrupt the microbiome, leading to various health issues.
Purpose of the Study:
- To explore the impact of alcohol and smoking on the gastrointestinal microbiome.
- To understand the link between microbiome changes and gastrointestinal disorders, including H. pylori-related conditions and gastric cancer.
- To investigate the role of specific bacteria like Lactobacillus GG and A. muciniphila in mitigating damage.
Main Methods:
- Review of existing literature on alcohol, smoking, and the gut microbiome.
- Analysis of how these factors affect bacterial composition and function in the stomach, small intestine, and colon.
- Consideration of high-throughput methodologies for future research.
Main Results:
- Alcohol consumption depletes beneficial anti-inflammatory bacteria, causing "leaky gut" and contributing to hepatic damage.
- Smoking alters the gut microbiome, showing protective effects for ulcerative colitis but detrimental effects for Crohn's disease.
- Specific bacteria like Lactobacillus GG and A. muciniphila may offer protective benefits.
Conclusions:
- Alcohol and smoking profoundly impact the gastrointestinal microbiome, influencing gut barrier function, liver health, and inflammatory conditions.
- The precise cause-effect relationships require further high-throughput and controlled studies.
- Microbiome modulation's role in immune response and systemic inflammation warrants deeper investigation.
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