| Disinhibition of off-cells and antinociception produced by an opioid action within the rostral ventromedial medulla MM Heinricher, MM Morgan, V Tortorici, HL Fields Neuroscience 63 (1), 279-288, 1994 | 246 | 1994 |
| Interference with GABA transmission in the rostral ventromedial medulla: disinhibition of off-cells as a central mechanism in nociceptive modulation MM Heinricher, V Tortorici Neuroscience 63 (2), 533-546, 1994 | 139 | 1994 |
| Circuitry underlying antiopioid actions of cholecystokinin within the rostral ventromedial medulla MM Heinricher, S McGaraughty, V Tortorici Journal of neurophysiology 85 (1), 280-286, 2001 | 119 | 2001 |
| Opioidergic effects of nonopioid analgesics on the central nervous system H Vanegas, V Tortorici Cellular and molecular neurobiology 22 (5-6), 655-661, 2002 | 80 | 2002 |
| Naloxone partial reversal of the antinociception produced by dipyrone microinjected into the periaqueductal gray of rats. Possible involvement of medullary off-and on-cells V Tortorici, E Vásquez, H Vanegas Brain research 725 (1), 106-110, 1996 | 73 | 1996 |
| Putative role of medullary off-and on-cells in the antinociception produced by dipyrone (metamizol) administered systemically or microinjected into PAG V Tortorici, H Vanegas Pain 57 (2), 197-205, 1994 | 69 | 1994 |
| Involvement of local cholecystokinin in the tolerance induced by morphine microinjections into the periaqueductal gray of rats V Tortorici, L Nogueira, R Salas, H Vanegas Pain 102 (1-2), 9-16, 2003 | 67 | 2003 |
| Tolerance to the antinociceptive effect of morphine microinjections into the ventral but not lateral–dorsal periaqueductal gray of the rat. V Tortorici, CS Robbins, MM Morgan Behavioral neuroscience 113 (4), 833, 1999 | 61 | 1999 |
| Opioid tolerance induced by metamizol (dipyrone) microinjections into the periaqueductal grey of rats V Tortorici, H Vanegas European Journal of Neuroscience 12 (11), 4074-4080, 2000 | 56 | 2000 |
| Anti‐nociception induced by systemic or PAG‐microinjected lysine‐acetylsalicylate in rats. Effects on tail‐flick related activity of medullary off‐and on‐cells V Tortorici, H Vanegas European Journal of Neuroscience 7 (9), 1857-1865, 1995 | 55 | 1995 |
| Tolerance to repeated microinjection of morphine into the periaqueductal gray is associated with changes in the behavior of off-and on-cells in the rostral ventromedial medulla … V Tortorici, MM Morgan, H Vanegas Pain 89 (2-3), 237-244, 2001 | 53 | 2001 |
| Induction of opioid tolerance by lysine-acetylsalicylate in rats AJ Pernia-Andrade, V Tortorici, H Vanegas Pain 111 (1-2), 191-200, 2004 | 45 | 2004 |
| PAG-microinjected dipyrone (metamizol) inhibits responses of spinal dorsal horn neurons to natural noxious stimulation in rats H Vanegas, V Tortorici, A Eblen-Zajjur, E Vásquez Brain research 759 (1), 171-174, 1997 | 41 | 1997 |
| Systemic changes following carrageenan-induced paw inflammation in rats E Vazquez, M Navarro, Y Salazar, G Crespo, G Bruges, C Osorio, ... Inflammation Research 64 (5), 333-342, 2015 | 39 | 2015 |
| Comparison of morphine and kainic acid microinjections into identical PAG sites on the activity of RVM neurons V Tortorici, MM Morgan Journal of neurophysiology 88 (4), 1707-1715, 2002 | 38 | 2002 |
| NSAIDs, opioids, cannabinoids and the control of pain by the central nervous system H Vanegas, E Vazquez, V Tortorici Pharmaceuticals 3 (5), 1335-1347, 2010 | 37 | 2010 |
| Role of RVM neurons in capsaicin-evoked visceral nociception and referred hyperalgesia R Sanoja, V Tortorici, C Fernandez, TJ Price, F Cervero European Journal of Pain 14 (2), 120. e1-120. e9, 2010 | 32 | 2010 |
| Involvement of cholecystokinin in the opioid tolerance induced by dipyrone (metamizol) microinjections into the periaqueductal gray matter of rats V Tortorici, L Nogueira, Y Aponte, H Vanegas Pain 112 (1-2), 113-120, 2004 | 31 | 2004 |
| Tolerance to non‐opioid analgesics in PAG involves unresponsiveness of medullary pain‐modulating neurons in male rats V Tortorici, Y Aponte, H Acevedo, L Nogueira, H Vanegas European Journal of Neuroscience 29 (6), 1188-1196, 2009 | 30 | 2009 |
| Critical role of the rostral ventromedial medulla in early spinal events leading to chronic constriction injury neuropathy in rats R Sanoja, H Vanegas, V Tortorici The Journal of Pain 9 (6), 532-542, 2008 | 24 | 2008 |
Horacio VanegasProfessor Emeritus, Instituto Venezolano de Investigaciones Científicas (IVIC)Dirección de correo verificada de ivic.gob.ve
