Table 1 Cigarette smoke increased the volume density of the alveolar space and decreased the alveolar septa in histological lung sections. Letters indicate significant differences adifference in relation to the control group) analysed by the Kruskal-Wallis test, followed by Dunn’s post-test (p < 0.05). Data are given as median, minimum, and maximum values (n = 8). (Vv [a]): alveolar spaces; (Vv [sa]): alveolar septa. CG: control group; RC: regular cigarette; TFC: tobacco-free cigarette.

From: Tobacco-Free Cigarette Smoke Exposure Induces Anxiety and Panic-Related Behaviours in Male Wistar Rats

Stereology

Groups

CG

RC

TFC

Vv[a](%/mm²)

43.60 (26.56–55.31)

55.94 (51.25–64.38)a

51.56 (47.81–61.25)

Vv[sa](%/mm²)

55.47 (43.44–72.19)

43.13 (35.00–48.75)a

48.29 (38.13–51.88)