| U.S. Ranger I (N = 49) | U.S. Ranger II (N = 41) | Norwegian Ranger (N = 20) | BCT (N = 48) | SFAS (N = 37) | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Immunological Parameter | Early (4 weeks) | Late (8 weeks) | Early (4 weeks) | Late (8 weeks) | Days 1–3 | Days 4–7 | 4 Weeks | 8 Weeks | 3 Weeks | |
| White blood cell studies | ||||||||||
| Granulocyte number* |  | – | | | | | ||||
| Granulocyte function † | |  | ||||||||
| Monocyte number* | |
| | | ||||||
| Monocyte function † | | | ||||||||
| Eosinophils | | | ||||||||
| Lymphocyte count | | – | | | ||||||
| CD4+ helper lymphocytes | | | | | ||||||
| CD8+ suppressor | | | | | ||||||
| CD4+:CD8+ | | | ||||||||
| NK-cells | | | ||||||||
| B-lymphocyte count | | | ||||||||
| Lymphocyte response to mitogens | | |
|
| | | | |||
| T-cell | |
| ||||||||
| B-cell | |
| ||||||||
| U.S. Ranger I (n = 49) | U.S. Ranger II (n = 41) | Norwegian Ranger (n = 20) | BCT (n = 48) | SFAS (n = 37) | |||||
|---|---|---|---|---|---|---|---|---|---|
| Immunological Parameter | Early (4 weeks) | Late (8 weeks) | Early (4 weeks) | Late (8 weeks) | Days 1–3 | Days 4–7 | 4 weeks | 8 weeks | 3 weeks |
| Immunoglobulin measurements | |||||||||
| IgG | | | |||||||
| IgA | | | |||||||
| IgM | | | |||||||
| Cytokine measurements | |||||||||
| TNF* | – | – | |||||||
| IL-1* | – | – | |||||||
| IL-2 cellular | | | | | – | – | |||
| IL-4 | – | – | |||||||
| IL-6* cellular and plasma | – | | | | | | | ||
| – | | | | ||||||
| GMCSF | | | |||||||
NOTE: , increase; , decrease; –, no change; BCT, basic combat training; GMCSF, granulocyte-macrophage colony-stimulating factor; Ig, immunoglobulin; IL, interleukin; NK, natural killer; SFAS, Special Forces Assessment and Selection Course; TNF, tumor necrosis factor.
Participates in acute-phase response.
Z As detected by chemiluminescence methodology.
From: 1, A Review of the Role of Nutrition in Immune Function
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.