Brief
Cornell researchers document first cats with Marfan syndrome
Genetic analysis showed the cats carry two altered copies of the FBN1 gene, yet retained partial gene function.
By Felo News Desk · Published
Researchers at Cornell University have identified two domestic cats, brothers Gary and Shaggy, as the first felines documented with Marfan syndrome, according to a study published in Scientific Reports.
What happened
The brothers displayed unusually long limbs as kittens, later developing eye abnormalities and an enlarged aorta. Detailed clinical exams and genetic sequencing confirmed each cat inherited an altered copy of the FBN1 gene from both parents.
What the reports add
The study notes that, unlike the complete loss of function seen in severe human cases, the cats’ specific genetic change disrupted only part of the gene‑processing pathway, leaving some normal fibrillin‑1 production intact. This partial function likely explains why the cats survived to adulthood despite carrying two defective copies.
What was said
"The findings provide a foundation for improved veterinary diagnostics," senior author Dr. Jacquelyn Evans, an assistant professor at Cornell’s College of Veterinary Medicine, told scitechdaily.com.
How it came about
The investigation combined multidisciplinary clinical evaluation with molecular genetics, building on earlier feline research such as Felo News' coverage of cat‑related genetic studies.
Key facts
- Gary and Shaggy are the first domestic cats genetically confirmed with Marfan syndrome. (scitechdaily.com)
- Both cats carry two altered copies of the FBN1 gene, inherited from each parent. (scitechdaily.com)
- The genetic alteration leaves partial gene function, allowing survival into adulthood. (scitechdaily.com)
Sources
- [1] scitechdaily.com — originally reported as “These Feline Brothers Are the First Cats Ever Documented With Marfan Syndrome”
