Table 4.
Changes in oxygen transport‐related proteins.
| SF | HS | 2G | |
|---|---|---|---|
| Upregulation | |||
| Hemoglobin α, adult chain 2 | – | *,† | – |
| Hemoglobin subunit β‐1‐like | – | *,† | – |
| Myoglobin | * | * | * |
| Downregulation | |||
| Hemoglobin α, adult chain 2 | *,† | – | *,† |
| Hemoglobin subunit β‐1‐like | *,† | – | *,† |
| Serotransferrin | – | – | * |
Significant responses of protein expressions to spaceflight (SF), hindlimb suspension (HS), or 2G exposure (2G) are indicated by *P < 0.05; −P > 0.05. The †indicates that the response of specific protein was opposite between each group.