Gum disease-causing bacteria borrow growth molecules from neighbors to thrive — ScienceDaily

The human body is filled with friendly bacteria. However, some of these microorganisms, such as Veillonella parvula, may be too nice. These peaceful bacteria engage in a one-sided relationship with pathogen Porphyromonas gingivalis, helping the germ multiply and cause gum disease, according to a new University at Buffalo-led study. The research sought to understand how […]

In liver, a stressed cell can be bad news for its neighbors

A key protein in the communication channels between cells can allow a stress response in one liver cell to spread to neighboring liver cells in mice, causing otherwise healthy cells to become dysfunctional, according to new research co-led by Harvard T.H. Chan School of Public Health and Sheba Medical Center in Israel. The findings could […]

Planets with many neighbors may be the best places to look for life

If you’re looking for life beyond the solar system, there’s strength in numbers. A new study suggests that systems with multiple planets tend to have rounder orbits than those with just one, indicating a calmer family history. Only child systems and planets with more erratic paths hint at past planetary sibling clashes violent enough to […]

Mountain gorillas are good neighbors – up to a point –

Mountain gorilla groups are friendly to familiar neighbours — provided they stay out of “core” parts of their territory — new research shows. Gorillas live in tight-knit groups, foraging, resting and sleeping together around a “core home range” and a wider “peripheral” range. These groups sometimes split permanently, separating gorillas that may have lived together […]