Microbiome Bites October 31st

Exercise asthma | Microbiome | Thinkbiome

1. Prebiotics can prevent ‘fatal’ asthma attacks

After a workout people with asthma sometimes experience a reduction in their lung function as a result of airway constriction. A new study published in the British Journal of Nutrition has found that the prebiotic Bimuno-galactooligosaccharide (B-GOS) can significantly reduce the risk of suffering an asthma attack after exercise. Following a three-week course of the prebiotic, participants displayed a reduction in the severity of attacks after a hyperventilation test which causes the effects of exercise-induced asthma — as well as significantly reducing blood markers of airway inflammation. Read more here.

2. Sleep loss tied to changes of the gut microbiome

Dysbiosis if the gut microbiome has been associated with diseases such as obesity and type-2 diabetes in humans. These diseases have also been linked with chronic sleep loss. In a study published in the journal Molecular Metabolism, researchers found that sleep restriction in healthy volunteers resulted in microbiota changes that parallel some of those observed when obese subjects have been compared with normal-weight subjects in other studies, such as an increased ratio of Firmicutes to Bacteroidetes. In addition, the researchers found that participants were over 20% less sensitive to the effects of the hormone insulin following sleep loss. Read more here.

3. New insights into the health promoting properties of kefir

Kefir is a fermented dairy drink that is often touted as being good for your microbiome. In a study published in the journal mSystems, researchers have for the first time analyzed the entire compliment of microorganisms present in kefir. The team believes that the research could be used optimize the fermentation processes, flavors and health-related attributes of kefir and other fermented foods and bring them to a wider consumer audience. Read more here.