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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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In most cases, kidneys can recover from almost complete loss of function, such as in acute kidney (renal) failure.

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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.

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The first successful kidney transplant was performed in 1954 and occurred in Boston. A kidney from an identical twin was transplanted into his dying brother's body and was not rejected because it did not appear foreign to his body.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

An individual's performance can be limited by environmental conditions, such as temperature. Ac An individual's performance can be limited by environmental conditions, such as temperature. Ac
There are multiple pathways for heat exchange between organisms and the environment. There are multiple pathways for heat exchange between organisms and the environment.
Dermatomes of the body. Dermatomes of the body.
All living organisms descended from a common ancestral cell All living organisms descended from a common ancestral cell
Important Trace Elements in the Body Important Trace Elements in the Body
Predicted Temperature Trends Through the 21st Century Predicted Temperature Trends Through the 21st Century
Video: Molecules, Membrane Permeability and Structure

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