|
Author Question: The beginning of the ________ is marked by the appearance of the first life forms with hard parts. (Read 24 times) |
In 1864, the first barbiturate (barbituric acid) was synthesized.
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.
The first monoclonal antibodies were made exclusively from mouse cells. Some are now fully human, which means they are likely to be safer and may be more effective than older monoclonal antibodies.