Table 1.

P2X₄−/− mice have normal body and bladder weights.

	Male		Female
	Wild type (n = 7)	P2X4−/− (n = 7)	Wild type (n = 8)	P2X4−/− (n = 6)
Body weight (g)	26.83 ± 2.67	27.39 ± 2.51	20.75 ± 2.10	21.83 ± 1.88
Bladder weight (mg)	26.28 ± 2.41	27.11 ± 2.17	20.78 ± 1.74	21.20 ± 2.45
Bladder/body ratio (mg/g)	0.98 ± 0.08	0.99 ± 0.06	1.01 ± 0.04	0.97 ± 0.07