Table 1. Organ weights expressed as % of body weight (standard error of the mean) for 12-week-old, apparently healthy, C57BL/6 mice, with the Lrig2E12 genotype as indicated (+/+, +/- or -/-).

	Male			Female
	+/+	+/-	-/-	+/+	+/-	-/-
	(n=4)	(n=11)	(n=9)	(n=9)	(n=12)	(n=10)
Brain	1.65 (0.037)	1.54 (0.044)	1.65 (0.063)	1.69 (0.153)	1.89 (0.073)	2.07 (0.081)
Heart	0.51 (0.024)	0.53 (0.012)	0.52 (0.027)	0.69 (0.190)	0.54 (0.021)	0.53 (0.030)
Lungs	0.53 (0.029)	0.59 (0.064)	0.54 (0.017)	0.59 (0.032)	0.58 (0.023)	0.61 (0.031)
Liver	3.01 (0.896)	3.78 (0.335)	3.91 (0.310)	4.53 (0.337)	4.38 (0.290)	4.50 (0.290)
Spleen	0.30 (0.016)	0.29 (0.015)	0.28 (0.015)	0.34 (0.011)	0.40 (0.030)	0.40 (0.045)
Kidneys	1.34 (0.050)	1.53 (0.038)	1.42 (0.050)	1.14 (0.064)	1.23 (0.028)	1.23 (0.050)
Ovaries	n.a.	n.a.	n.a.	0.32 (0.091)	0.41 (0.079)	0.48 (0.046)
Ventral prostate	0.03 (0.005)	0.03 (0.002)	0.03 (0.002)	n.a.	n.a.	n.a.
Dorsolateral prostate	0.04 (0.006)	0.04 (0.003)	0.04 (0.006)	n.a.	n.a.	n.a.
Seminal vesicles	1.08 (0.072)	0.87 (0.096)	0.99 (0.043)	n.a.	n.a.	n.a.
Testes	0.96 (0.028)	0.95 (0.033)	0.96 (0.036)	n.a.	n.a.	n.a.

n.a., not applicable