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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.
People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.
For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.
The first oncogene was discovered in 1970 and was termed SRC (pronounced "SARK").
There are approximately 3 million unintended pregnancies in the United States each year.