Effect of Ampicillin on the kinetics of colonization of Streptococcus pneumoniae and Lactobacillus fermentum in the respiratory tract of mice

Table 3 Histological modifications of the respiratory tract of mice on day 4 of the experiment.

Organ	control	*L.f*.+ampicillin⁽¹⁾	*S.p*.+ampicillin⁽²⁾	*L.f.+S.p*.+ampicillin⁽³⁾
Bronchia	Cilindric epithelia	Conserved	Conserved	Conserved
Bronchioli	Cubic epithelia	Conserved	Without extension of the interalveolar wall	Conserved
Lungs	Alveolus and duct with plane epithelia.	Regular duct and alveolus. Alveolar light with macrophages	Regular exudation of mononuclear lymphocytes close to the interaveolar duct.	Slight areas with a scarce increased lymphocytic density

Mice were inoculated with: L. fermentum + ampicillin (1), S. pneumoniae + ampicillin (2) and L. fermentum + S. pneumoniae + ampicillin (3).

ISSN: 1476-0711