PMID- 20163519 OWN - NLM STAT- MEDLINE DCOM- 20101005 LR - 20100611 IS - 1365-2826 (Electronic) IS - 0953-8194 (Linking) VI - 22 IP - 5 DP - 2010 May TI - Electrophysiological identification of the functional presynaptic nerve terminals on an isolated single vasopressin neurone of the rat supraoptic nucleus. PG - 413-9 LID - 10.1111/j.1365-2826.2010.01979.x [doi] AB - Release of arginine vasopressin (AVP) and oxytocin from magnocellular neurosecretory cells (MNCs) of the supraoptic nucleus (SON) is under the control of glutamate-dependent excitation and GABA-dependent inhibition. The possible role of the synaptic terminals attached to SON neurones has been investigated using whole-cell patch-clamp recording in in vitro rat brain slice preparations. Recent evidence has provided new insights into the repercussions of glial environment modifications on the physiology of MNCs at the synaptic level in the SON. In the present study, excitatory glutamatergic and inhibitory GABAergic synaptic inputs were recorded from an isolated single SON neurone cultured for 12 h, using the whole-cell patch clamp technique. Neurones expressed an AVP-enhanced green fluorescent protein (eGFP) fusion gene in MNCs. In addition, native synaptic terminals attached to a dissociated AVP-eGFP neurone were visualised with synaptic vesicle markers. These results suggest that the function of presynaptic nerve terminals may be evaluated directly in a single AVP-eGFP neurone. These preparations would be helpful in future studies aiming to electrophysiologically distinguish between the functions of synaptic terminals and glial modifications in the SON neurones. FAU - Ohbuchi, T AU - Ohbuchi T AD - Department of Physiology, School of Medicine, University of Occupational and Environmental Health, Kitakyushu 807-8555, Japan. FAU - Yokoyama, T AU - Yokoyama T FAU - Fujihara, H AU - Fujihara H FAU - Suzuki, H AU - Suzuki H FAU - Ueta, Y AU - Ueta Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20100212 PL - United States TA - J Neuroendocrinol JT - Journal of neuroendocrinology JID - 8913461 RN - 113-79-1 (Arginine Vasopressin) RN - 147336-22-9 (Green Fluorescent Proteins) SB - IM MH - Animals MH - Arginine Vasopressin/genetics/*physiology MH - Green Fluorescent Proteins/genetics MH - Male MH - Neurons/*physiology MH - Patch-Clamp Techniques MH - Presynaptic Terminals/*physiology MH - Rats MH - Rats, Transgenic MH - Supraoptic Nucleus/*physiology EDAT- 2010/02/19 06:00 MHDA- 2010/10/06 06:00 CRDT- 2010/02/19 06:00 PHST- 2010/02/19 06:00 [entrez] PHST- 2010/02/19 06:00 [pubmed] PHST- 2010/10/06 06:00 [medline] AID - JNE1979 [pii] AID - 10.1111/j.1365-2826.2010.01979.x [doi] PST - ppublish SO - J Neuroendocrinol. 2010 May;22(5):413-9. doi: 10.1111/j.1365-2826.2010.01979.x. Epub 2010 Feb 12.