science

Lisofylline

Lisofylline is a science 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 Lisofylline rather than just read about it. In short: Lisofylline (LSF) is a synthetic small molecule with novel anti-inflammatory properties. LSF can effectively prevent type 1 diabetes in preclinical models and improves the function and viability of isolated or transplanted pancreatic islets.

Key takeaways

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

Reference excerpt

Lisofylline (LSF) is a synthetic small molecule with novel anti-inflammatory properties. LSF can effectively prevent type 1 diabetes in preclinical models and improves the function and viability of isolated or transplanted pancreatic islets. It is a metabolite of pentoxifylline. As well, LSF improves cellular mitochondrial function and blocks interleukin-12 (IL-12) signaling and STAT-4 activation in target cells and tissues. IL-12 and STAT-4 activation are important pathways linked to inflammation and autoimmune damage to insulin producing cells. Therefore, LSF and related analogs could provide a new therapeutic approach to prevent or reverse type 1 diabetes. LSF also directly reduces glucose-induced changes in human kidney cells suggesting that LSF and analogs have the potential to treat the complications associated with diabetes.

Synthesis The R enantiomer of the pentoxyfylline analogue in which the ketone has been reduced to an alcohol shows enhanced activity as an inhibitor of acetyl CoA over the parent drug.

For analogs see:

Further reading DE 3942872, Aretz, Werner; Furrer, Harald & Gebert, Ulrich et al., "Verfahren zur enantioselektiven Darstellung von (ω-1)-Hydroxyalkylxanthinen [Method for the enantioselective preparation of(ω-1)-hydroxyalkylxanthines]", published 1991-06-27, assigned to Hoechst AG US 5310666, Aretz, Werner; Furrer, Harald & Gebert, Ulrich et al., "Process for the enantioselective preparation of (β-1)-hydroxyalkylxanthines by reduction using Rhodotorula rubra", published 1994-05-10, assigned to Hoechst AG WO 9531450, Klein, J. Peter; Leigh, Alistair J. & Michnick, John et al., "Asymmetric synthesis of chiral secondary alcohols", published 1995-11-23, assigned to Cell Therapeutics Inc.

References

External links University of Virginia Research Announcement National Institute of Health on Lisofylline Metabolism of lisofylline in the human liver

Illustrations

Worked examples

Example 1 — a first encounter with Lisofylline

Start with the simplest possible case. Write down what Lisofylline claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, 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 Lisofylline 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 Lisofylline 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 Lisofylline

In research: Lisofylline appears in science 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 Lisofylline 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: Lisofylline is common in secondary-school and first-year university syllabi. It links to neighbouring topics Anti-inflammatory agents, Anti-interleukin drugs, Xanthines, so understanding it makes those chapters shorter.
In everyday life: Look for Lisofylline 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 Lisofylline in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Lisofylline 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 Lisofylline out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Lisofylline in simple terms?

Why does Lisofylline matter?

Because it connects several science 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 Lisofylline?

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 Lisofylline.