Fact check: Japanese researchers successfully removed the extra chromosome linked to Down syndrome in laboratory cells.

Verdict: mostly true — Trust Score 75/100

The Instagram post highlights several significant scientific and technological breakthroughs, most of which are supported by recent news and scientific reports. These include advancements in Down syndrome research, eye drops for vision correction, artificial heart technology, and 3D-printed corneas. However, some of the claims are presented with slight exaggerations or lack the full context of their current stage of development. The images accompanying the claims appear to be illustrative and potentially AI-generated, rather than authentic depictions of the research or patients.

Platform
instagram
Source author
execute — see all fact-checks of this account
Original post
https://www.instagram.com/p/DaV1OoCjHjt/?img_index=4&igsh=czNtMGNteW1oZmJ1
Verified on
July 4, 2026
Verification ID
K-Xl6UHZkfqdWZyIE9LC6g

Original content reviewed

Platform: INSTAGRAM Author: @execute --- Caption/Description --- The biggest breakthroughs happening right now aren’t making the front page. 🌍 Japanese researchers successfully removed the extra chromosome linked to Down syndrome in laboratory cells — opening doors to treatments that didn’t exist a year ago. Scientists are developing eye drops that could improve vision without glasses. France is advancing artificial heart technology that could replace donor transplants entirely. A French team created a living-cell mini pancreas that actually produces insulin. 🧬 A 3D-printed cornea helped restore vision in real patients. Brazilian researchers reported paraplegic patients regaining movement through an experimental treatment. Japan hit a record internet speed of 1.02 petabits per second in lab testing — a number that doesn’t even feel real. South Korea is even testing separate walking lanes for fast and slow pedestrians. Small idea. Big quality of life shift. 🇰🇷 Every single day, quietly, people are solving problems that a generation ago would have sounded like science fiction. The world isn’t only getting worse. It’s also getting better in ways most people never hear about. ❤️ Which of these blew your mind the most? 👇 Follow @execute for the stories that actually matter. #Science #Innovation #Technology #Future #Execute --- Carousel/Slides (10 items) --- Slide 1 (image): Text: EX GOOD NEWS FROM AROUND THE WORLD THAT NOBODY IS TALKING ABOUT Slide 2 (image): Text: CHILDREN WITH DOWN SYNDROME MAY NO LONGER BE BORN: JAPANESE SCIENTISTS HAVE MANAGED TO REMOVE THE CHROMOSOME LINKED TO THIS CONDITION. Slide 3 (image): Text: FRANCE UNVEILED AN ARTIFICIAL HEART THAT CAN BEAT FOREVER WITHOUT THE NEED FOR A DONOR. SOURCE PLATFORM: unclear Slide 4 (image): Text: BY THE END OF 2026, EYE DROPS THAT WILL CORRECT VISION WITHOUT THE NEED FOR GLASSES WILL BE AVAILABLE FOR SALE. Slide 5 (image): Text: IN SOUTH KOREA, THEY ARE TESTING SEPARATE LANES FOR FAS

Claims analyzed (4)

  1. verified: Japanese researchers successfully removed the extra chromosome linked to Down syndrome in laboratory cells.
    Multiple sources from 2025 and 2026 confirm that Japanese researchers, particularly a team led by Dr. Ryotaro Hashizume at Mie University, have successfully used CRISPR-Cas9 gene-editing technology to remove the extra copy of chromosome 21 from human cells in laboratory settings. This breakthrough has been reported in various scientific and news outlets.
  2. verified: Scientists are developing eye drops that could improve vision without glasses.
    Recent reports from 2025 and 2026 indicate that eye drops are being developed and, in some cases, have received FDA approval to treat presbyopia (age-related farsightedness), potentially reducing or eliminating the need for reading glasses. These drops work by constricting the pupil to improve near vision.
  3. mostly true: France is advancing artificial heart technology that could replace donor transplants entirely.
    French company Carmat has developed the Aeson artificial heart, a bioprosthetic device designed to replace a failing human heart. While it represents a significant advancement and aims to reduce dependence on donor organs, current reports from 2026 and 2023 indicate that no device can currently guarantee perpetual operation or entirely replace donor transplants in all cases. It is a promising step towards that goal.
  4. verified: A 3D-printed cornea helped restore vision in real patients.
    Multiple sources from late 2025 and early 2026 confirm that the world's first successful human implant of a 3D-printed, lab-grown cornea has restored vision in legally blind patients. This breakthrough was achieved by Israeli biotech company Precise Bio and surgeons at Rambam Eye Institute in Haifa, Israel.

Sources consulted (31)

Related verifications

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