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Initially mistaken for neutrophils, a population of atypical macrophages appears in the lungs after severe viral infection, orchestrates tissue repair, and then vanishes. 

Popular weight-loss drugs like Ozempic are used to treat obesity and diabetes. Now, researchers found that these drugs also affect rodent brains in other ways. 

Victor Ambros and Gary Ruvkun won this year’s Physiology or Medicine award for the discovery of microRNA and its role in post-transcriptional gene regulation.

A scientist’s quest for microbes that produce purple pigments led her to the vibrant world of natural dyes, where biology and traditional artistry intertwine.

A new database with more than 2,500 food metagenomes gives scientists a glimpse into the microbial diversity of the human diet.

Fruit flies with gut tumors showed an increased preference for a bitter antitumor compound compared to healthy flies, suggesting a self-medication strategy. 

Researchers take the guesswork out of infection detection by training dogs to recognize the scent of bacterial biofilm biomarkers.

Two scientists weigh in on what makes for a successful mentorship experience.  

Hazel Barton studies cave microbiomes and leverages their properties for unique applications.

Proteins that trigger cell senescence occupy much of the literature on aging, but a small RNA moves into the limelight.

Antigen knockdown prevented organ rejection in minipigs, even in the absence of immunosuppression.

Human innate immune cells that “remember” previous stimulation could provide new insights into chronic inflammatory diseases.