Table 4
Mean (SE) concentration of iron in alveolar macrophages (AM) in relation to occupation and lung diseases
| μg/106AM | nmol/106AM | Perls (score 0–300)4-a | |
|---|---|---|---|
| Controls | 0.3 (0.0)7 | 5.9 (0.5)7 | 5.5 (1.6)15 |
| 0.3 (0.2)6 | 7.5 (0.6)17 | ||
| 12.8 (1.3)30 | |||
| Asymptomatic smokers | 0.6 (0.0)7 | 10.9 (2.2)7 | 21.7 (5.6)15 |
| 0.5 (0.4)6 | |||
| Symptomatic smokers | 1.4 (0.2)7 | 24.7 (4.3)7 | 25.8 (9.8)15 |
| 2.1 (0.9)6 | 27.6 (17.9)17 | ||
| 43.0 (7.7)30 | |||
| Blast furnace workers | 1.8 (1.5)6 | ||
| Coke oven workers | 1.1 (0.9)6 | ||
| Welders | 1.7 (0.6)6 | ||
| Smoker patients with lung carcinoma | 2.3 (2.7)6 | ||
| Non-smoker patients with lung carcinoma | 1.6 (3.0)6 | ||
| Goodpasture syndrome | 6.2 (1.5)6 |
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Superscript numbers are reference numbers.
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↵4-a Perls staining evaluates haemosiderin content. Score was made on 100 AM (0 = absence of staining; 1 = weak (less than 25% cytoplasm stained); 2 = moderate (25–50% cytoplasm stained); 3 = intense (more than 50% stained).
