Table 1.
Number and Localization of Islet-1-Positive Cells in C57BL/6J Mouse Heart
| Mouse age | na | Number of cellsb | Localizationc | Leveld |
|---|---|---|---|---|
| D1 | 10/10 | 302 | 101 OT, 201 RA | 12%–18% |
| D5 | 5/6 | 222 | 222 LV | 15%–23% |
| D10 | 2/2 | 163 | 131 OT, 32 IVS | 13%–27% |
| D15 | 1/1 | 306 | 192 RA, 54 IAS, 60 LA | 8%–19% |
| D20 | 5/5 | 180 | 14 RV, 133 IAS, 33 IVS | 12%–27% |
| D25 | 2/2 | 311 | 303 RA, 8 LV | 13%–26% |
| 4–7 months | 2/2 | 177; 30 | 149 RA, 28 LA; 30 RA | 17%–22%; 6% |
| 8–12 months | 0/3 | 0 | NA | NA |
a
Number of animals positive for Islet-1 labeling out of the total number in the group.
b
Represents the total number of cells counted in a given heart.
c
Number of cells in a specific localization: OT, outflow tract; RA, right atrium; LA, left atrium; RV, right ventricle; LV, left ventricle; IAS, interauricular septum; IVS, interventricular septum.
d
The levels are normalized relatively to the height of the heart, from base to apex.
NA, not applicable.