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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.
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Inotropic therapy does not have a role in the treatment of most heart failure patients. These drugs can make patients feel and function better but usually do not lengthen the predicted length of their lives.
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There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.
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Children of people with alcoholism are more inclined to drink alcohol or use hard drugs. In fact, they are 400 times more likely to use hard drugs than those who do not have a family history of alcohol addiction.
In the 1800s, most people were poor, and formal education beyond the first several grades was a ...
The dimensions of a typical bolt showing where sizes are measured.
A typical oil pressure sending unit on a Ford V-8.
A typical hand-operated vacuum pump.
A typical clean-in-place system
Typical leaf structure of eudicots (left) and monocots (right).