
The baby saved from a rare disease by a first-ever personalized gene fix has reached a big milestone, taking his first steps ahead of Christmas.
KJ Muldoon is walking and getting ready to celebrate the holiday season at home with his parents and three siblings.
KJ was born last year with a genetic disorder called carbamoyl-phosphate synthetase 1 deficiency. Also known as CPS1 deficiency, the metabolic condition affects only 1 in 1.3 million babies and often leads to life-threatening outcomes.
When he was 6 months old, doctors began giving KJ a groundbreaking new treatment -- a personalized CRISPR gene editing therapy at Children's Hospital of Philadelphia.
Doctors save baby's life with first-ever gene fix for deadly rare disease
The gene-editing therapy works like a "molecular spell-checker,” finding and fixing the specific genetic error causing his condition.
After three infusions and after spending the first 10 months of his life in a hospital, KJ was discharged and sent home in June.
Baby saved by gene-editing therapy 'graduates' from hospital, goes home
Since then, KJ has continued to grow and thrive with his family, celebrating his first birthday at home and taking part in one of the family’s favorite rituals -- cheering for their beloved Philadelphia Eagles.
Doctors hope new technology like CRISPR gene-editing therapies can be the key to treating more than 7,000 rare diseases, such as sickle cell disease, cystic fibrosis, Huntington’s disease and muscular dystrophy, that affect approximately 30 million people across the country.
LATEST POSTS
- 1
The most effective method to Recognize a Great Lab Jewel - 2
Without evidence, CDC changes messaging on vaccines and autism - 3
Jesse Jackson hospitalized, under observation for a neurodegenerative condition - 4
How Mars' ancient lakes grew shields of ice to stay warm as the Red Planet froze - 5
Satellite observations offer insight into a tsunami's early stages
Investigation reveals sperm donor passed on cancer risk to dozens of children across Europe
5 Different ways Macintosh is Prepared to Overwhelm Gaming, Even Against Windows
Artemis 2 moon astronauts will try to recreate Apollo 8's historic 'Earthrise' photo during April 6 flyby
Indian rocket launches record-breaking BlueBird 6 smartphone satellite to orbit (video)
Exhaustive Experiences into Prudent Senior Living in the UK
Like 'accelerating from stationary to supersonic flight': Europe's Hera probe boosts speed, stays on course for November asteroid rendezvous
Starship success, a private moon landing and more: The top 10 spaceflight stories of 2025
Audits of 6 American Busssiness Class Flights
Nearly half of reindeer have been wiped out and armadillos are in Iowa. Here’s how animals are weathering warming holidays













