NaCl | KCl | CaCl2 | MgCl2 | MnCl2 | BAPTA | HEPES | d-Glucose | |
---|---|---|---|---|---|---|---|---|
External solutions (mM) | ||||||||
K+currents | 110 | 2.5 | 2 | 0.1 | 10 | 10 | ||
Ca2+currents | 100 | 31-a | 2.0 | 10 | 10 | |||
Na2+ currents | 125 | 2 | 10 | 10 | ||||
NMDA current | 120 | 3 | 2 | 10 | 10 |
NaCl | KCl | CaCl2 | MgCl2 | CsCl | BAPTA | HEPES | Na-ATP | |
---|---|---|---|---|---|---|---|---|
Internal solutions (mM) | ||||||||
K+currents | 120 | 1.0 | 1.5 | 1.0 | 10 | 2 | ||
Ca2+ currents | 3 | 120 | 2.5 | 10 | 5 | |||
Na2+ currents | 5 or 0 | 130 | 1.0 | 10 | ||||
NMDA current | 120 | 1.0 | 10 | 2 |
Tetrodotoxin (0.1 μM) was added into the external solution to block Na+ channels; TEA (20 mM) was included in the external solution to block K+ channels in Ca2+ and Na+ current recordings. Solution pH was 7.3.
↵1-a Some experiments used BaCl2 instead of CaCl2.