History
The different forms or subtypes of phosphodiesterase were initially isolated from rat brains by Uzunov and Weiss in 1972 and were soon afterwards shown to be selectively inhibited in the brain and in other tissues by a variety of drugs. The potential for selective phosphodiesterase inhibitors as therapeutic agents was predicted as early as 1977 by Weiss and Hait. This prediction meanwhile has proved to be true in a variety of fields.
Read more about this topic: Phosphodiesterase Inhibitor
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“Classes struggle, some classes triumph, others are eliminated. Such is history; such is the history of civilization for thousands of years.”
—Mao Zedong (1893–1976)
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