The thickened valve «flops» more (think about the loss of similar tissues in skin and the difference between a young and old person!). (www2.vet.cornell.edu)
Unfortunately, we have similar tissue structures in our own body that also go under attack by mistaken identity, fueling the autoimmune disease. (mindbodygreen.com)
When the modified cells were injected into mice whose hind limbs had been injured, the tissue that regrew to repair the damage had three times the blood vessel density of similar tissue in mice given unmodified cells. (newscientist.com)