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Did you know?

Interferon was scarce and expensive until 1980, when the interferon gene was inserted into bacteria using recombinant DNA technology, allowing for mass cultivation and purification from bacterial cultures.

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Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%

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When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).

Did you know?

ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

Did you know?

The most destructive flu epidemic of all times in recorded history occurred in 1918, with approximately 20 million deaths worldwide.

Structure and basic function of a typical vertebrate neuron and associated glial cells. Structure and basic function of a typical vertebrate neuron and associated glial cells.
The complex structure of the hemoglobin protein. The complex structure of the hemoglobin protein.
Structure of the skin. Structure of the skin.
The Decentralized Metropolis The Decentralized Metropolis
Structure of immunoglobulin molecules Structure of immunoglobulin molecules
Conservation of organization and patterns of expression in Hox genes Conservation of organization and patterns of expression in Hox genes
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