Table 1.

Nitrergic drugs on pro-metamorphic stages (stage 48+)

	SNAP			DEA-NO			l-NAME			PTIO
Tissue Exposed/Parameter	Control	Drug	Wash	Control	Drug	Wash	Control	Drug	Wash	Control	Drug	Wash
Whole preparation
Swim, %	4.25 ± 2.03	14.33 ± 5.82	7.34 ± 3.42	1.06 ± 0.34	3.01 ± 0.72	1.73 ± 0.39	10.42 ± 1.60	4.33 ± 0.88	7.91 ± 1.52	4.62 ± 1.60	1.37 ± 0.37	3.52 ± 10.65
Burst duration, ms	82.40 ± 7.66	89.39 ± 8.87	89.07 ± 7.93	128.20 ± 33.99	107.50 ± 21.29	109.81 ± 19.93	70.35 ± 7.69	79.54 ± 9.19	73.00 ± 5.16	70.90 ± 7.13	91.02 ± 18.85	82.38 ± 12.29
Cycle period, ms	195.68 ± 11.18	223.92 ± 15.97	200.56 ± 13.19	211.78 ± 16.24	213.27 ± 11.02	217.45 ± 17.88	196.57 ± 7.58	204.31 ± 12.47	198.56 ± 11.66	197.88 ± 15.10	207.19 ± 17.97	206.01 ± 14.87
Episode duration, s	4.25 ± 2.03	14.33 ± 5.82	7.34 ± 3.42	1.06 ± 0.34	3.01 ± 0.72	1.73 ± 0.39	10.42 ± 1.60	4.33 ± 0.88	7.91 ± 1.52	5.23 ± 1.15	5.03 ± 1.28	3.66 ± 0.61

	SNAP and DEA-NO			l-NAME and PTIO
	Control	Drug	Wash	Control	Drug	Wash
Spinal cord
Swim, %	2.92 ± 2.02	2.46 ± 1.83	1.02 ± 0.49	1.15 ± 0.31	0.86 ± 0.14	0.90 ± 0.18
Burst duration, ms	89.42 ± 12.09	96.17 ± 18.50	85.00 ± 7.67	90.64 ± 12.77	107.01 ± 19.95	90.70 ± 13.61
Cycle period, ms	252.35 ± 13.67	268.73 ± 32.86	239.38 ± 18.00	206.64 ± 18.25	220.85 ± 21.37	186.63 ± 17.24
Episode duration, s	3.46 ± 0.98	2.38 ± 0.44	2.55 ± 0.49	2.49 ± 0.79	2.56 ± 0.89	3.40 ± 1.10
Brain stem
Swim, %	1.04 ± 0.48	1.61 ± 0.44	1.01 ± 0.40	3.97 ± 3.14	0.44 ± 0.20	3.59 ± 2.86
Burst duration, ms	85.00 ± 7.67	98.26 ± 12.68	81.60 ± 6.08	93.39 ± 11.81	110.98 ± 18.73	83.99 ± 8.68
Cycle period, ms	239.38 ± 18.00	251.09 ± 24.12	220.50 ± 11.86	168.96 ± 11.90	178.18 ± 17.90	180.46 ± 7.87
Episode duration, s	2.49 ± 0.49	2.22 ± 0.28	3.11 ± 0.85	2.59 ± 0.90	2.44 ± 1.53	2.57 ± 0.77

Values are means ± SE. SNAP, S-nitroso-N-acetyl penicillamine; DEA-NO, diethylamine NONOate; l-NAME, N^ω-nitro-l-arginine methyl ester; PTIO, 2-phenyl-4,4,5,5-tetramethylimidazoline-1-oxyl 3-oxide.