This Week in Microbiology
Microbiologists dissect new papers: gut genome mosaicism, nitrogen-fixing organelles, microbiome and colon cancer recurrence
58:04Bunsen Burners Don't Reduce Plate Contamination, and Vegetables Protect the Heart by Another Mechanism
A Bunsen burner may actually increase settle colonies in low-contamination environments; the cardiovascular benefit of vegetables may not run through the nitrate-nitrite-NO pathway but through gut bacteria turning nitrate and iron into DNIC that directly activates sGC.
53:14Antibiotic Bowel Prep Before Colon Cancer Surgery May Be Selecting for the Bacteria That Cause Recurrence
Antibiotic bowel prep before colon cancer surgery is meant to prevent infection; but in patients whose cancer recurs, the resistant bacteria in their gut are unfazed, and on the day of surgery their total bacterial load is 23 times higher than in non-recurring patients. The prep may be precisely what selects for future recurrence.