Santa's Little Helper their old pet. Bart eventually gives Santa's Little Helper away instead of Laddie when repo men take back everything he fraudulently purchased. Feeling guilty about this disloyalty and bored with his too perfect new dog, Bart tries to get him back. When he finally finds him, Santa's Little Helper is serving as a seeing-eye dog for a blind man, but eventually decides to return to the family. In "Stop or My Dog Will Shoot" (season 18, 2007), Santa's Little Helper becomes a local hero after finding a lost Homer, and the Simpsons decide to enroll him in the Animal Police
T helper 3 cell T helper 3 cell T helper 3 cells (T3) are white blood cells of the lymphocyte type. They are involved in regulating the body's immune response. The function of T helper cells generally is to mediate the immune response by secreting cytokines and interacting with B-cells to enhance or inhibit their activity. This is of particular importance in the gut as this is where the highest load of foreign material, food, is present. T3 cells are involved in mucosal immunity and protecting mucosal surfaces in the gut from non-pathogenic non-self antigens. They mediate this non-inflammatory environment by secreting TGF-β and