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Though methadone is often used to treat dependency on other opioids, the drug itself can be abused. Crushing or snorting methadone can achieve the opiate "rush" desired by addicts. Improper use such as these can lead to a dangerous dependency on methadone. This drug now accounts for nearly one-third of opioid-related deaths.

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The senior population grows every year. Seniors older than 65 years of age now comprise more than 13% of the total population. However, women outlive men. In the 85-and-over age group, there are only 45 men to every 100 women.

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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

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There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).

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Medication errors are more common among seriously ill patients than with those with minor conditions.

The structure of a DNA strand The structure of a DNA strand
DNA Polymerase Binds to the Template Strand.p1 DNA Polymerase Binds to the Template Strand.p1
DNA Polymerase Binds to the Template Strand.p2 DNA Polymerase Binds to the Template Strand.p2
Complementary fit between a macromolecule and a small molecule Complementary fit between a macromolecule and a small molecule
A model for RecA-mediated strand exchange A model for RecA-mediated strand exchange
The RecA strand exchange reaction as shown from single-molecule studies The RecA strand exchange reaction as shown from single-molecule studies
Video: A Human Karyotype Preparation Animation

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