From: Zinc-bound metallothioneins and immune plasticity: lessons from very old mice and humans
 | MICE |  | HUMANS | ||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
 | Circadian Cycle |  | Partial Hepatectomy |  | Old | Centenarians | |||||
 |  | LP | DP |  |  | 0 h | 48 h | 15 gg |  |  |  |
Number of NKTγδ cells | A | ++ | + | MT | A | - | +++ | - | MT | + | - |
 | B | -- | -- |  | B | + | + | + |  |  |  |
 | C | + | ++ |  | C | - | + | - |  |  |  |
NKT cell cytotoxicity | A | ++ | +++ | NKT cell cytotoxicity | A | ++ | - | ++ | NKT cell cytotoxicity | - | + |
 | B | -- | -- |  | B | - | - | - |  |  |  |
 | C | + | ++ |  | C | + | - | + |  |  |  |
IFNγ | A | + | ++ | Thymic endocrine activity | A | ++ | - | ++ | IFNγ | - | + |
 | B | - | - |  | B | - | - | - |  |  |  |
 | C | + | ++ |  | C | + | - | + |  |  |  |
IL-2 | A | + | ++ | IL-2 | A | ++ | - | ++ | IL-6 | ++ | ++ |
 | B | - | - |  | B | - | - | - | gp 130 | ++ | - |
 | C | + | ++ |  | C | + | - | + |  |  |  |
Plasma zinc | A | + | ++ | Plasma Zinc | A | ++ | - | ++ | Plasma zinc | - | + |
 | B | - | - |  | B | - | - | - |  |  |  |
 | C | + | ++ |  | C | + | - | + |  |  |  |