Black tea prevents cigarette smoke-induced apoptosis and lung damage

Journal of Inflammation

Table 1 Morphometric measurements of alveolar air space, perimeter and surface density.

Group	No. of Air Spaces	Total Area (A)*	Total Perimeter (P)*	P/A	S/V
Air	148 ± 10	25576 ± 1754	7646 ± 1282	0.299 ± 0.049	0.235 ± 0.038
CS	84 ± 9	37879 ± 3931	7383 ± 919	0.197 ± 0.036	0.155 ± 0.028
BT	176 ± 12	33978 ± 1704	10239 ± 758	0.302 ± 0.027	0.237 ± 0.021
BT+CS	184 ± 15	35389 ± 2733	10917 ± 1215	0.309 ± 0.037	0.243 ± 0.029

Values are means ± S.D. number of images analyzed in each group:8; A, Total area of air space; P, Total perimeter (contour length) of air space; P/A, perimeter per unit area; S/V (surface density) = π/4 × P/A. The groups represent: Air, air exposed; CS, exposed to CS; BT, air exposed guinea pigs given BT as the drink; CS+BT, CS-exposed guinea pigs given BT as the drink. * Arbitrary unit using NIH image

ISSN: 1476-9255