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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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A serious new warning has been established for pregnant women against taking ACE inhibitors during pregnancy. In the study, the risk of major birth defects in children whose mothers took ACE inhibitors during the first trimester was nearly three times higher than in children whose mothers didn't take ACE inhibitors. Physicians can prescribe alternative medications for pregnant women who have symptoms of high blood pressure.

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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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There are more nerve cells in one human brain than there are stars in the Milky Way.

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Fewer than 10% of babies are born on their exact due dates, 50% are born within 1 week of the due date, and 90% are born within 2 weeks of the date.

Phases of adaptive immune responses Phases of adaptive immune responses
Basal ganglia: overstimulation of dopamine receptors may be responsible for schizophrenia Basal ganglia: overstimulation of dopamine receptors may be responsible for schizophrenia
Primatologist Volker Sommer and his colleagues showed that langur infanticide had adaptive value and Primatologist Volker Sommer and his colleagues showed that langur infanticide had adaptive value and
Steps in the humoral and cell-mediated immune responses. Steps in the humoral and cell-mediated immune responses.
Direct immunoassays. A labeled antibody binds directly to the antigen. The label on the antibody can ... Direct immunoassays. A labeled antibody binds directly to the antigen. The label on the antibody can ...
Gene rearrangements in antibody gene maturation Gene rearrangements in antibody gene maturation
Video: Automated external defibrillator (AED)

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