Fig. 9.
Morphometry in lung (400 ×). The C57Bl/6 mice were treated with Lacticaseibacillus rhamnosus (109 CFU Lr in 300 µL of PBS, gastric oro by gavage) for 14 days or one day, before E. coli LPS instillation (0.5 mg/Kg, intranasal). The mice were euthanized 24 h after the LPS. The histological sections were stained with H&E and the photomicroscopy of the parenchyma was performed using a microscope (OLYMPUS MODEL BX43F) and analyzed using the IMAGE PRO PLUS program. Photomicroscopy (magnification: 400 ×) (9A); Neutrophils (9B); monocytes (9C); lymphocytes (9D), and Alveolar collapse (9E). The results are expressed as mean ± SEM ****p < 0.0001; ***p < 0.001; **p < 0.01; *p < 0.05 and ns: non-significant difference.