Ancient viral fossils buried in our DNA are offering fresh clues about how today’s respiratory pathogens infect and spread.

Complex I is the first and largest enzyme of the respiratory chain and has a central role in cellular energy production through the coupling of NADH:ubiquinone electron transfer to proton ...

The respiratory system is made up of several organs and structures, including the lungs, windpipe, diaphragm and alveoli. It is responsible for taking in oxygen and expelling carbon-dioxide waste.

Respiratory infections refer to any infections of the respiratory system. They can affect your throat, sinuses, lungs, or airways. They're common for people of all ages and aren’t usually serious. But ...

Instead, surfactant is also important in narrow tubular respiratory structures such as the terminal airways of mammals and the air capillaries of birds. (3). Insect tracheoles: We investigate the ...