chemistry

Oleoylethanolamide

Oleoylethanolamide is a chemistry topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Oleoylethanolamide rather than just read about it. In short: Oleoylethanolamide (OEA) is an endogenous peroxisome proliferator-activated receptor alpha (PPAR-α) agonist. It is a naturally occurring ethanolamide lipid that regulates feeding and body weight in vertebrates ranging from mice to pythons.

Key takeaways

Oleoylethanolamide belongs to chemistry; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Oleoylethanolamide to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Oleoylethanolamide from memory before moving on to harder problems.

Reference excerpt

Oleoylethanolamide (OEA) is an endogenous peroxisome proliferator-activated receptor alpha (PPAR-α) agonist. It is a naturally occurring ethanolamide lipid that regulates feeding and body weight in vertebrates ranging from mice to pythons. OEA is a shorter, monounsaturated analogue of the endocannabinoid anandamide, but unlike anandamide it acts independently of the cannabinoid pathway, regulating PPAR-α activity to stimulate lipolysis. OEA is produced by the small intestine following feeding in two steps. First an N-acyl transferase (NAT) activity joins the free amino terminus of phosphatidylethanolamine (PE) to the oleoyl group (one variety of acyl group) derived from sn-1-oleoyl-phosphatidylcholine, which contains the fatty acid oleic acid at the sn-1 position. This produces an N-acylphosphatidylethanolamine, which is then split (hydrolyzed) by N-acyl phosphatidylethanolamine-specific phospholipase D (NAPE-PLD) into phosphatidic acid and OEA. The biosynthesis of OEA and other bioactive lipid amides is modulated by bile acids. OEA has been demonstrated to bind to the novel cannabinoid receptor GPR119. OEA has been suggested to be the receptor's endogenous ligand. OEA has been hypothesized to play a key role in the inhibition of food seeking behavior and in the lipolysis of brown bears "ursus arctos" during the hibernation season together with the alteration of the endocannabinoid system required for the metabolic changes for hibernation. OEA has been reported to lengthen the life span of the roundworm Caenorhabditis elegans through interactions with lysomal molecules. OEA is mainly known by its anorexigenic effects. However, it has also neuroprotective properties. In this sense, recent research has demonstrated that OEA reduces neuronal death in a murine model of aggressive neurodegeneration. Such neuroprotective effect is triggered by a stabilization of microtubule dynamics and by the modulation of neuroinflammation

References

External links Science Magazine Archived 2012-02-10 at the Wayback Machine BBC: Fatty foods 'offer memory boost'

Illustrations

Worked examples

Example 1 — a first encounter with Oleoylethanolamide

Start with the simplest possible case. Write down what Oleoylethanolamide claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In chemistry, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Oleoylethanolamide before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Oleoylethanolamide ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Oleoylethanolamide

In research: Oleoylethanolamide appears in chemistry research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Oleoylethanolamide in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Oleoylethanolamide is common in secondary-school and first-year university syllabi. It links to neighbouring topics Endocannabinoids, Fatty acid amides, Neurotransmitters, so understanding it makes those chapters shorter.
In everyday life: Look for Oleoylethanolamide outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Oleoylethanolamide in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Oleoylethanolamide means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Oleoylethanolamide out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Oleoylethanolamide in simple terms?

Why does Oleoylethanolamide matter?

Because it connects several chemistry ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Oleoylethanolamide?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Oleoylethanolamide.