Category Biology/Biotechnology

Researchers found that in mice how much they ate and when altered the nature of their gut microbiome: too much food too frequently resulted in poorer microbial and metabolic health.

An estimated 500 to 1,000 bacterial species reside in each person’s gut, perhaps numbering 100,000 trillion microorganisms...

The viral replication cycle is crucial for a virus to spread inside the body and cause disease. Focusing on that cycle in the hepatitis A virus (HAV), UNC School of Medicine scientists discovered that replication requires specific interactions between the human protein ZCCHC14 and a group of enzymes called TENT4 poly(A) polymerases. They also found that the oral compound RG7834 stopped replication at a key step, making it impossible for the virus to infect liver cells.

These findings, published in the Proceedings of the National Academy of Sciences, are the first to demonstrate an effective drug treatment...

SCUBE3 identified as possible therapeutic treatment for androgenetic alopecia. University of California, Irvine-led researchers have discovered that a signaling molecule called SCUBE3 potently stimulates hair growth and may offer a therapeutic treatment for androgenetic alopecia, a common form of hair loss in both women and men.

The study, published online today in Developmental Cell, determined the precise mechanism by which the dermal papilla cells — speciali...

A class of viruses known to cause severe diarrheal diseases – including the one famous for widespread outbreaks on cruise ships – can grow in the salivary glands of mice and spread through their saliva, scientists at the National Institutes of Health have discovered. The findings show that a new route of transmission exists for these common viruses, which afflict billions of people each year worldwide and can be deadly.

The transmission of these so-called enteric viruses through saliva suggests that coughing, talking, sneezing, sharing food and utensils, and even kissing all have the potential for spreading the viruses. The new findings still need to be confirmed in human studies.

The findings, which appear in the journal Nature, could lead to better ways to prevent, diagnos...