Inner Ear Potentials

Cochlear endolymph - Endocochlear Potential

Value

Species

Source

Comment
--------------- --------------- ------------------------------------ ---------------------
Turn I : 91.7 mV, SD 3.1, n=11
Turn II : 85.5 mV, SD 2.8, n=11
Turn III : 78.8 mV, SD 4.9, n=10
Turn IV : 72.0 mV, SD 8.5, n=10		 Guinea pig Salt & DeMott (1994) Hear Res 74, 115
84.4 mV SD 2.8 Guinea pig
n=12		 Ikeda & Morizono (1991) Hear Res 51, 185 albino
84.5 mV SE 3.7 Guinea pig
n=4		 Mori et al. (1990) Eur Arch Oto-rhino-laryngol. 247, 371 Basal turn via RW
79.5 mV SD 3.5 Chinchilla
n=21		 Ikeda and Morizono (1990) Eur Arch Otorhinolaryngol 247, 43 Turn I
Turn I : 91.2 mV, SD 2.9
Turn II : 83.0 mV, SD 1.6
Turn III : 76.8 mV, SD 4.3
Turn IV : 69.1 mV, SD 4.3		 Guinea pig
n=10		 Salt et al. (1989) Am. J. Otolaryngol. 10, 371
76.5 mV SE 1.0 Chinchilla
n=11		 Ikeda and Morizono (1988) Hear Res 34, 193 Turn I
81.0mV SE 1.3 Guinea pig
n=11		 Ikeda and Morizono (1988) Hear Res 34, 193 Turn I
81.3 mV SD 3.3 Guinea pig
n=14		 Ninoyu & Meyer zum Gottesberge (1986) Arch Oto-Rhino-Laryngology 243,141 Presume turn I
Turn I: 108.4 mV SE 0.45 n=12
Turn II: 100.7 mV SE 0.75, n=7
Turn III: 92.1mV SE 1.6, n=8		 Rat Sterkers et al. (1984) Am J Physiol 16, F602
82.9 mV +/- 3.4 Guinea pig
n=9		 Amano et al. (1983) Arch Otorhinolaryngol 237:273
85.3 mV SD 1.6 Guinea pig
n=6		 Konishi et al. (1982) Acta Otolaryngol 94, 395 Turn I
80 mV Guinea pig Morgenstern et al. (1982) Am J Otolaryngol 3, 323
83.6 mV SE 2.0 Guinea pig
n=35		 Bosher (1980) Acta Otolaryngol 89, 407 Turn I
87.1 mV SE 1.0 Rat
n=35		 Bosher (1980) Acta Otolaryngol 89, 407 Turn II
84.0 mV SD 2.6 Guinea pig
n=17		 Konishi et al (1979) Hear Res 1, 325 Turn I
81.3 mV SE 1.4 Guinea pig
n=13		 Bosher (1979) J Physiol 293, 329 Turn I, basal
88.1 mV SE 0.6 Rat
n=54		 Bosher (1979) J Physiol 293, 329 Turn II
81.3 mV SD 2.0 Guinea pig
n=7		 Konishi & Hamrick (1978) Acta Otolaryngol. 86, 176 basal turn
85.0 mV SD 3.5 Guinea pig
n=27		 Salt & Konishi (1979) Hear Res 1, 343 basal turn
83.4 mV SD 6.2 Guinea pig
n=10		 Konishi & Kelsey (1973) Acta Otolaryngol 76, 410 Basal turn

Saccular endolymph

Value

Species

Source

Comment
--------------- --------------- ------------------------------------ ---------------------
7.3 mV
SD 2.5		 Guinea pig
n=10		 Salt et al. (1989) Am. J. Otolaryngol. 10, 371
5.0 mV
SD 3.5		 Guinea pig
n=33		 Kusakari et al. (1986) Acta Otolaryngol 101, 27
+0 to 4 mV Guinea pig Morgenstern et al. (1982) Am J Otolaryngol 3, 323

Utricular endolymph

Value

Species

Source

Comment
--------------- --------------- ------------------------------------ ---------------------
4.8 mV
SD 1.3		 Guinea pig
n=5		 Salt et al. (1989) Am. J. Otolaryngol. 10, 371
+0 to 4 mV Guinea pig Morgenstern et al. (1982) Am J Otolaryngol 3, 323

Semi-Circular Canal endolymph

Value

Species

Source

Comment
--------------- --------------- ------------------------------------ ---------------------
3.9 mV SD 1.3 Guinea pig
n=29		 Mori et al. (1987) Arch Otorhinolaryngol 244, 61
3.4 mV SD 1.0 Guinea pig
n=9		 Ninoyu & Meyer zum Gottesberge (1986) Arch Oto-Rhino-Laryngology 243,141

Endolymphatic Sac Lumen

Value

Species

Source

Comment
--------------- --------------- ------------------------------------ ---------------------
6.1 mV SE 0.86
n=9		 Guinea pig Couloigner et al. (1999) Acta Otolaryngol 119, 200 Translabyrinthine, via the duct
11.7 mV SE 1.19
n=5		 Guinea pig Couloigner et al. (1999) Acta Otolaryngol 119, 200 intradural approach
7.1 mV SE 1.02
n=17		 Guinea pig Teixeira et al. (1999) Hear Res 128, 45 intradural approach
8.4 mV SE 0.3
n=78		 Guinea pig Couloigner et al. (1998) Laryngoscope 108, 592 intradural approach
11.2 mV SD 4.8
n=33		 Guinea pig Tsujikawa et al. (1992) Acta Otolaryngol. 112, 785 intradural approach
19.7 mV SD 5.3
n=90		 Guinea pig Mori & Ouzumi (1991) Otol Jpn Suppl 1, 23 extradural approach
20.8 mV SE 1.2
n=6
19.8 mV SE 1.5
n=5		 Guinea pig Mori et al. (1991) Acta Otolaryngol. 111, 70 extradural approach
9.3 mV SD 1.8 Guinea pig
n=18		 Ikeda & Morizono (1991) Hear Res 54, 118 intradural approach
19.4 mV SE 1.2 Guinea pig
n=26		 Mori et al. (1991) Ann Otol Rhinol Laryngol. 100, 72 extradural approach
17.3 mV SE 3.7 Guinea pig
n=4		 Mori et al. (1990) Eur Arch Oto-rhino-laryngol. 247, 371 extradural approach
14.7 mV SD 4.1 Guinea pig
n=17		 Mori et al. (1987) Arch Otorhinolaryngol 244, 61 extradural
14.5 mV SD 2.3 Guinea pig
n=9		 Ninoyu & Meyer zum Gottesberge (1986) Arch Oto-Rhino-Laryngology 243,141 presumed extradural
16.7 mV +/- 5.0 Guinea pig
n=7		 Amano et al. (1983) Arch Otorhinolaryngol 237:273 extradural
+10 to 16 mV Guinea pig Morgenstern et al. (1982) Am J Otolaryngol 3, 323