. Author manuscript; available in PMC: 2015 Mar 20.

Published in final edited form as: Pediatr Pulmonol. 2009 Jun;44(6):602–612. doi: 10.1002/ppul.21042

Table 1.

Morphometry of isolated ASM cells

Age group	Cell Lmax, (μm)	Width, μm	Volume_cyl, (pl)	SA: Vol, μm²/μm³
PT110 (n=9)	73.1 + 32.0	4.8 + 0.83	1.3 + 0.5	0.89 + 0.14 ^§
PT125 (n=9)	84.7 + 19.3	5.8 + 1.79	2.5 + 1.5	0.83 + 0.46
NB (n=10)	74.0 + 19.1	5.0 + 0.94	1.4 + 0.5	0.85 + 0.14
Adult (n=10)	172.8 + 46.0 ^*	8.4 + 2.88^*	10.7 + 8.1^*	0.54 + 0.20 ^§

PT = preterm; NB = newborn; SA:Vol = surface area to volume ratio. These cells were measured in 1.6 mM CaCl₂.

Considered significantly different from all other groups at p < 0.05.

^§

Significantly different from each other only at p < 0.05.