Nucleotide synthesis—the production of the basic components of DNA and RNA—is essential for cell growth and division. In most ...

A human female is born with all the egg cells she will ever have. The possibility for the development of new oocytes is zero. Given this constraint, it is crucial that these gametes remain healthy and ...

Per- and polyfluoroalkyl substances (PFAS), manmade chemicals that accumulate in the body over time, have been linked to liver disease and cancer, but it is not yet clear how they cause damage.

The brain is shielded from many substances by the blood-brain barrier, but this shield is not impenetrable. There are immune cells in the brain called microglia that can respond to potential invaders ...

Some brain cells can resist the toxic processes associated with Alzheimer's disease and other forms of dementia. Scientists have now identified the "cellular hazmat team" that keeps neurons healthy.

Scientists have uncovered a direct molecular mechanism by which gut bacteria inject proteins into human cells, reshaping immune responses and potentially driving inflammatory disease. Scientists have ...

King's College London researchers have created a unique collection of human stem cell models that could help to uncover why ...