Beyond every binary is a more complex reality. And so it is with driver and passenger mutations. The separation of tumor mutations into drivers and passengers underpins much progress in the development of targeted therapies. By looking at passenger mutations more carefully, though, researchers at Yale University have shown that passenger mutations, too, played a role in how tumors progressed.

Parkinson’s disease (PD) is a neurodegenerative disorder. But not just. And it may not start that way. There is increasing evidence that a-synuclein, the protein whose aggregates eventually destroy midbrain dopaminergic neurons in PD (and that are the cause of other diseases collectively known as the synucleinopathies), first aggregates “in enteric neurons, the neurons that control gastrointestinal function,” Collin Challis told BioWorld.

The hormone prolactin is known for and named after its role in breastfeeding. But that is far from its only role. There are more than 300 identified functions of prolactin, which is present in both men and women, though women have higher levels, and extremely high levels late in pregnancy and during breastfeeding. Now, scientists at the University of Arizona have identified another function of prolactin signaling.

At this very early point in the emerging 2019-nCoV outbreak, knowledge about the virus is insufficient to predict what shape that outbreak will ultimately take.

The drug screens prompted by the SARS and MERS outbreaks have been useful for quickly identifying drug candidates. But in terms of their epidemiology, “SARS and MERS were different from this coronavirus,” Allison McGeer explained at a Feb. 3 webinar by Evercore ISI.

For depression, and other mental health disorders, the era of precision medicine has yet to arrive. Symptoms are “very poorly reflective of the underlying biology,” Amit Etkin told BioWorld. Depression can manifest through multiple different symptoms that differ both between and within cultures.