Research Article
Prevention of LPS-Induced Acute Lung Injury in Mice by Progranulin
| Score | Alveolar septae | Alveolar hemorrhage | Intra-alveolar fibrin | Intra-alveolar infiltrations per field |
| 0 | All are thin and delicate | No hemorrhage | No intra-alveolar fibrin | Less than 5 intra-alveolar cells | 1 | Congested alveolar septae in less than 1/3 of the field | Erythrocytes per alveolus in 1 to 5 alveoli | Fibrin strands in less than 1/3 of the field | 5 to 10 intra-alveolar cells | 2 | Congested alveolar septae in 1/3 to 2/3 of the field | At least 5 erythrocytes per alveolus in 5 to 10 alveoli | Fibrin strands in 1/3 to 2/3 of the field | 10 to 20 intra-alveolar cells | 3 | Congested alveolar septae in greater than 2/3 of the field | At least 5 erythrocytes per alveolus in more than 10 alveoli | Fibrin strands in greater than 2/3 of the field | More than 20 intra-alveolar cells |
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