Journal: bioRxiv
Article Title: Dopamine regulates the membrane potential and glycine release of AII amacrine cells via D1-like receptor modulation of gap junction coupling
doi: 10.1101/2024.12.11.625486
Figure Lengend Snippet: (A) Current-clamp recording from an AII-AC after 1 second current steps before (i) and after (ii) the application of a synaptic blocker cocktail containing the AMPAR blocker CNQX (10µM), the NMDAR blocker DL-AP5 (50µM), the GABA(A)R blocker gabazine (8µM) and the group-III mGluR agonist L-AP4 (10µM). (B) Voltage traces at several current injections show dramatic differences in AII-AC Vm and spiking before (i) and after (ii) the cocktail. Current step injection values are shown in red. (C) Quantification of resting membrane voltage (i) , input resistance at −55 mV (ii) , and IV curve (iii) in control ( black ) and cocktail ( blue ). n = 7. Circles in bar graphs represent single cells. Statistical significance was determined using paired t -tests; **: p < 0.01.
Article Snippet: Drugs and salts stock solutions were prepared with ultra-pure water (Mili-Q, Millipore) and stored in freezer at −20° C. Synaptic blockers CNQX, DL-AP5, gabazine (SR95531) and L-AP4, were all purchased from Tocris Bioscience.
Techniques: Injection, Membrane, Control