What’s that inside our livers? Could it be the undead?! This is Sandra Tsing Loh with the Loh Down on Science. When cells can no longer divide, they die. But sometimes…they become zombies! Scientists call this cellular senescence. In this state, cells release chemicals that can make other cells sick.
Continue reading
Imagine a meal even Ms. Pacman can’t swallow whole! This is Sandra Tsing Loh with the Loh Down on Science. Macrophages are large immune cells with an even LARGER appetite – they’re known for swallowing bacteria whole! Ramraj Velmurugan from Texas A&M University and colleagues wondered – just how big
Continue reading
I’m gonna look so tough with my Hello Kitty tattoo! This is Sandra Tsing Loh with the Loh Down on Science. We all know tattoos are permanent. But science says our body recycles most of our cells every seven years. Old beat up cells are replaced with sprightly new cells!
Continue reading