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Blocking a key immune signal may prolong post-surgery pain — Level A1 — a close up of a sign that reads recovery

Blocking a key immune signal may prolong post-surgery painCEFR A1

29 Jan 2026

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Adapted from Michigan State, Futurity • CC BY 4.0

Photo by Martin Sanchez, Unsplash

Level A1 – Beginner
2 min
77 words
  • Scientists study pain after surgery in mice.
  • They block an immune molecule after a small cut.
  • When the molecule is blocked, pain lasts longer.
  • The team expected less pain but saw more.
  • They did the tests in different ways.
  • Scientists say do not stop all anti-inflammatory drugs.
  • Many molecules control inflammation, pain and healing.
  • Researchers want to find helpful and harmful molecules.
  • The goal is to reduce long-lasting pain.
  • This could change treatment after surgery.

Difficult words

  • scientist — person who does tests and studies nature
    Scientists
  • immune — related to the body's disease protection system
  • molecule — very small part of a chemical or object
  • inflammation — body reaction with redness and swelling
  • healing — process of the body getting better
  • reduce — make something smaller or less

Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.

Discussion questions

  • Do you take medicine for pain?
  • Have you had surgery?
  • Do you want less long-lasting pain after surgery?

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