Rebound effect
The production of increased negative symptoms when the effect of a drug has passed or the patient no longer responds to the drug. If a drug produces a rebound effect, the condition it was used to treat may come back even stronger when the drug is discontinued or loses effectiveness.
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- Recalcitrant
Stubborn. For example, a recalcitrant case of pneumonia stubbornly resists treatment.
- Recalls, FDA
The recall of a defective or possibly harmful product by the US Food & Drug Administration (the FDA). These recalls are often highly publicized in newspapers and on radio and TV news broadcasts. Recent headlines in major newspapers such as “FDA Orders Peanut Butter Recall” and “FDA Orders 6,500 Cases of Red-Dyed Mints Recalled” are […]
- Recent memory
Short-term memory. Also called working memory. Recent memory is a system for temporarily storing and managing the information required to carry out complex cognitive tasks such as learning, reasoning, and comprehension. Recent memory is involved in the selection, initiation, and termination of information-processing functions such as encoding, storing, and retrieving data. One test of recent […]
- Receptor
1. In cell biology, a structure on the surface of a cell (or inside a cell) that selectively receives and binds a specific substance. There are many receptors. There is a receptor for (insulin; there is a receptor for low-density lipoproteins (LDL); etc. To take an example, the receptor for substance P, a molecule that […]
- Receptor, chemokine
A molecule that receives a chemokine and associated proteins (chemokine docks). Several chemokine receptors are essential co-receptors for the HIV virus.