cox-2
Definition
Noun: 1. An enzyme: Specifically, cyclooxygenase-2 (Cox-2) is an enzyme produced by the body. Its primary function is to catalyze the production of prostaglandins, which are hormone-like substances. These prostaglandins are key mediators of inflammation, pain, and fever.
Usage
- Cox-2 is a specific biological target for certain medications.
- The discussion of Cox-2 is primarily scientific and medical, relating to biochemistry, pharmacology, and physiology.
Examples
- Scientific Context: "Research focuses on developing drugs that selectively inhibit Cox-2 to reduce inflammation without causing stomach ulcers."
- Medical Context: "The beneficial effects of these NSAIDs result from their ability to block Cox-2."
- Explanatory Context: "When tissue is injured, the Cox-2 enzyme is induced, leading to the production of inflammatory prostaglandins."
Advanced Usage
- Cox-2 Inhibitors: This is a class of nonsteroidal anti-inflammatory drugs (NSAIDs) designed to block the Cox-2 enzyme specifically. Examples include celecoxib and rofecoxib (the latter withdrawn from the market). The term "Cox-2" is most commonly encountered in this compound form.
- Cox-1 vs. Cox-2: In pharmacology, Cox-2 is often discussed in contrast with the related enzyme Cox-1. Cox-1 is constitutively active and protects the stomach lining, while Cox-2 is induced during inflammation.
Variants and Related Words
- Cyclooxygenase-2: The full, formal name for Cox-2.
- COX-2: An alternative capitalization.
- Prostaglandin-endoperoxide synthase 2: Another systematic name for the enzyme.
Synonyms
- Cyclooxygenase-2 (formal synonym)
- Prostaglandin G/H synthase 2 (technical synonym)
Notes on Meaning
- Primary Meaning: The enzyme itself, as defined above.
- Metonymic Use: In common medical and pharmaceutical discourse, "Cox-2" is frequently used as a shorthand to refer to the involving this enzyme or the that inhibit it (e.g., "a Cox-2 inhibitor").
Noun
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an enzyme that makes prostaglandins that cause inflammation and pain and fever
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the beneficial effects of NSAIDs result from their ability to block Cox-2
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