secrete

They start to secrete renin and substances that trigger other changes: New nerves grow like weeds; immature smooth muscle cells build up; scars form around the tiny blood vessels, called arterioles; and inflammatory cells infiltrate.

The researchers found the yeast-based probiotic made and secreted the drug that releases the brake on the immune system, allowing it to fight tumors.

"Normally, microglia are looking for things like viruses or injury and secreting substances that block off the damage," she said.

Once an ant detects a food source, it secretes a chemical trail to lead other ants to the source.

These are tiny bubbles of lipids that are secreted by cells of the body and that can ultimately enter the bloodstream.