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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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In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Nearly all drugs pass into human breast milk. How often a drug is taken influences the amount of drug that will pass into the milk. Medications taken 30 to 60 minutes before breastfeeding are likely to be at peak blood levels when the baby is nursing.

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Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.

A typical office layout. A typical office layout.
Medical assistant extern clarifying externship issues with the office manager. Medical assistant extern clarifying externship issues with the office manager.
Establishing a steady-state resting membrane potential. Establishing a steady-state resting membrane potential.
Blood types and results of donor and recipient combinations. Blood types and results of donor and recipient combinations.
Jump Right In: Essential Computer Skills Using Microsoft Office 2013 (2nd Edition) Jump Right In: Essential Computer Skills Using Microsoft Office 2013 (2nd Edition)
The results of a cytogenetic survey of over 4,000 miscarriages show a wide variation in how often sp The results of a cytogenetic survey of over 4,000 miscarriages show a wide variation in how often sp
Video: Muscular Dystrophy

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