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Acute effects of increased gut microbial fermentation on the hypoxic ventilatory response in humans

What is the central question of this study? Is there a link between gut microbial fermentation and ventilatory responsiveness to hypoxia in humans? What is the main finding and its importance? Increased gut microbial fermentation is associated with augmented ventilatory (but not haemodynamic) responses to transient hypoxia. These findings imply a capacity for gut microbiota to modulate the peripheral chemoreflex response to hypoxia in humans.