Smoking and Obesity: A Microbial Perspective on Oral and Gut Microbiome Alterations
Hassan, E., Abdalla, S., Abdellah, A., Azab, M., Ramadan, M., Adel Ibrahim, K. (2025). Smoking and Obesity: A Microbial Perspective on Oral and Gut Microbiome Alterations. EKB Journal Management System, 4(1), 1990-2037. doi: 10.21608/erurj.2025.292160.1152
Esraa Koriem Hassan; Salah Abdalla; Ali Abdellah; Marwa Azab; Mohammed Ramadan; Kareem Adel Ibrahim. "Smoking and Obesity: A Microbial Perspective on Oral and Gut Microbiome Alterations". EKB Journal Management System, 4, 1, 2025, 1990-2037. doi: 10.21608/erurj.2025.292160.1152
Hassan, E., Abdalla, S., Abdellah, A., Azab, M., Ramadan, M., Adel Ibrahim, K. (2025). 'Smoking and Obesity: A Microbial Perspective on Oral and Gut Microbiome Alterations', EKB Journal Management System, 4(1), pp. 1990-2037. doi: 10.21608/erurj.2025.292160.1152
Hassan, E., Abdalla, S., Abdellah, A., Azab, M., Ramadan, M., Adel Ibrahim, K. Smoking and Obesity: A Microbial Perspective on Oral and Gut Microbiome Alterations. EKB Journal Management System, 2025; 4(1): 1990-2037. doi: 10.21608/erurj.2025.292160.1152

Smoking and Obesity: A Microbial Perspective on Oral and Gut Microbiome Alterations

ERU Research Journal
Volume 4, Issue 1, January 2025, Page 1990-2037  XML PDF (731.92 K)
Document Type: Review article
DOI: 10.21608/erurj.2025.292160.1152
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Authors
Esraa Koriem Hassan1; Salah Abdalla2; Ali Abdellah2; Marwa Azab2; Mohammed Ramadan3; Kareem Adel Ibrahim email orcid 4
1Microbiology and Immunology Department, Egyptian-Russian University, Badr City, Egypt
2Department of Microbiology and Immunology, Faculty of Pharmacy, Suez Canal University, Ismailia, Egypt.
3Department of Microbiology and Immunology, Faculty of Pharmacy, Al-Azhar University, Assiut, Egypt
4Department of Microbiology and Immunology, Faculty of Pharmacy, Egyptian Russian University
Abstract
The oral and gut microbiomes play crucial roles in human health and disease. Oral microbiome aids in digestion of food, provides colonization resistance against pathogens, modulates local and systemic inflammatory responses, and contributes to immune education. Contrastingly, the vast gut microbiome, comprising trillions of microbes inhabiting the gastrointestinal tract, is essential to nutrient absorption, vitamin synthesis, xenobiotic metabolism, and immune maturation. While maintaining the delicate balance and diversity within these microbial ecosystems is crucial for preserving physiological homeostasis, both smoking and obesity can mess up such equilibrium. Smoking and obesity are two major public health concerns that have been extensively studied for their detrimental impacts on human health. However, only few researches have shed light on the intricate interplay between these conditions and the microbial communities residing in the oral cavity and gut. Emerging cutting-edge molecular biology techniques such as 16S rRNA gene sequencing and next-generation sequencing have enabled high-resolution profiling of these complex microbial ecosystems. This review article delves into the significant alterations observed in the oral and gut microbiomes associated with smoking and obesity, shedding more light into the pivotal connection between these seemingly distinct habitats.
Keywords
Oral microbiome; Gut microbiome; Dysbiosis; Smoking; Obesity
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