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Author Question: Phencyclidine (PCP) is a potent glutamate antagonist that is known to produce psychotic behavior in ... (Read 36 times) |
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
When blood is exposed to air, it clots. Heparin allows the blood to come in direct contact with air without clotting.
Cocaine was isolated in 1860 and first used as a local anesthetic in 1884. Its first clinical use was by Sigmund Freud to wean a patient from morphine addiction. The fictional character Sherlock Holmes was supposed to be addicted to cocaine by injection.
Since 1988, the CDC has reported a 99% reduction in bacterial meningitis caused by Haemophilus influenzae, due to the introduction of the vaccine against it.
People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.