All mammals have a particular protein on the surface of sperm called CatSper. It controls the entry of the particles needed to power the hyperactive movements in the tail-like flagella that propels ...

A mouse study may pave the way for new approaches to contraception and infertility treatment. Sperm are surprisingly picky ...

New lab test detects hidden sperm defects affecting 1 in 100 infertile //men * ICSI is the only effective treatment for men ...

Individuals with breast cancer who carried a TLR4 loss-of-function allele relapsed much ... TLR5 binds flagellin, a constituent of bacterial flagella. TLR5 is expressed primarily on cells of ...

Darwinian evolution says that complex systems arise through numerous successive, slight modifications that benefit the species' survival over many generations. However, we have shown that bacterial ...

The structure of the sperm flagella is similar to the ultrastructure of cilia, accounting for the common association of male infertility with PCD while women with PCD can be subfertile due to impaired ...

Teeth are good for chewing and biting, but they are also sensitive – and that may have been their original function hundreds ...

An often-ignored type of cell in the brain plays a dynamic and surprisingly complex role in our ability to process ...

Seed plants, such as soybeans, store large amounts of protein in specialized organelles called protein storage vacuoles.

“These people, all these functions our bodies are doing while we are sleeping, they can just perform at a higher level than we can.” The DEC2 mutation results in increased levels of ...