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Level A1 – BeginnerCEFR A1
2 min
72 words
- Researchers studied Alzheimer's disease using mice in the lab.
- They used brain tissue from human surgeries for tests.
- The team found a changed enzyme in brain cells.
- The enzyme can become inactive and form clumps inside.
- Clumps attach to mitochondria and block cell energy production.
- This increases stress and more bad enzyme appears inside.
- A new compound stopped clumps and helped cells survive.
- Treated mice showed better heart and brain health overall.
Difficult words
- enzyme — a protein that helps chemical reactions in cells
- mitochondrion — small part of a cell that makes energymitochondria
- compound — a substance made of two or more parts
- clump — a small group or mass of thingsclumps
- tissue — a group of similar cells in the bodybrain tissue
- stress — physical or mental pressure on the body
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you ever seen a mouse?
- Do you think new medicines can help cells?
- Which organs were better in treated mice?
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