A reliable clock for your microbiome

The microbiome is a treasure trove of information about human health and disease, but getting it to reveal its secrets is challenging. A new genetic 'repressilator' circuit acts like a clock that tracks how bacterial growth changes over time with single-cell precision. This tool allows scientists to noninvasively study the dynamics of the microbiome, and also unlocks the potential for complex, synthetic-biology-based diagnostics and therapeutics for the human gut.

Read more

Compound in breast milk fights harmful bacteria

A compound in human breast milk fights infections by harmful bacteria while allowing beneficial bacteria to thrive, according to researchers. Human breast milk has more than 200 times the amount of glycerol monolaurate (GML) than is found in cows' milk. Infant formula has none. Future research will determine if GML could be a beneficial additive to cow's milk and infant formula.

Read more

Antibiotic resistance in food animals nearly tripled since 2000

Researchers report that the growing appetite for animal protein in low- to middle-income countries has resulted in a smorgasbord of antibiotic consumption for livestock that has nearly tripled the occurrence of antibiotic resistance in disease-causing bacteria between 2000 and 2018. The researchers found that antibiotic resistance in livestock was most widespread in China and India, with Brazil and Kenya emerging as new hotspots.

Read more