Gut microbiota & Influencing factors

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What influences the composition and diversity of the gut microbiota?

The composition and diversity of the gut microbiota are shaped by host-related, environmental, dietary, and lifestyle factors. These influences interact dynamically throughout life and affect microbial metabolism, immune regulation, and overall health.
Key factors include:

Age and senescence

Host genetics

Food, diet, and nutrients

Local environment, geography, clima…

References (Sources)

Delivery mode shapes the acquisition and structure of the initial microbiota across multiple body habitats in newborns
Dominguez-Bello et al. 2010 Proc Natl Acad Sci U S A. 107(26): 11971-11975
Human microbiome variation associated with race and ethnicity emerges as early as 3 months of age
Mallott et al. 2023 PLoS Biol 21: e3002230
Mode of delivery affects the bacterial community in the newborn gut
Biasucci et al. 2010 Early Hum Dev. 86(Suppl 1): 13-15
Natural history of the infant gut microbiome and impact of antibiotic treatment on bacterial strain diversity and stability
Yassour et al. 2016 Sci Transl Med. 8: 343ra81
The microbiome: toward preventing allergies and asthma by nutritional intervention
Perdijk & Marsland 2019 Current Opinion Immunology 60: 10-18
Review
Transmission of the gut microbiota: spreading of health
Browne et al. 2017
Review
US immigration westernizes the human gut microbiome
Vangay et al. 2018 Cell 175: 962-972

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