Andras Hajnal All publications ( 46 ) Kovacs P. Hajnal A. Altered Pontine Taste Processing in a Rat Model of Obesity. 2008 Jun 11. J Neurophysiol. . Hajnal A. Margas WM. Covasa M. Altered dopamine D2 receptor function and binding in obese OLETF rat. 2008 Jan 31. Brain Res Bull. 75(1):70-6. She P. Reid TM. Bronson SK. Vary TC. Hajnal A. Lynch CJ. Hutson SM. Disruption of BCATm in Mice Leads to Increased Energy Expenditure Associated with the Activation of a Futile Protein Turnover Cycle. 2007 Sep. Cell Metab. 6(3):181-94. Hajnal A. Acharya NK. Grigson PS. Covasa M. Twining RC. Obese OLETF rats exhibit increased operant performance for palatable sucrose solutions and differential sensitivity to D2 receptor antagonism. 2007 Nov. Am J Physiol Regul Integr Comp Physiol. 293(5):R1846-54. De Jonghe BC. Hajnal A. Covasa M. Conditioned preference for sweet stimuli in OLETF rat: effects of food deprivation. 2007 May. Am J Physiol Regul Integr Comp Physiol. 292(5):R1819-27. National Institute of Diabetes and Digestive and Kidney Diseases Grigson PS. Hajnal A. Once is too much: Conditioned changes in accumbens dopamine following a single saccharin-morphine pairing. 2007 Dec. Behav Neurosci. 121(6):1234-42. Hajnal A. De Jonghe BC. Covasa M. Dopamine D2 receptors contribute to increased avidity for sucrose in obese rats lacking CCK-1 receptors. 2007 Aug 1. Neuroscience. . Anderzhanova E. Covasa M. Hajnal A. Altered basal and stimulated accumbens dopamine release in obese OLETF rats as a function of age and diabetic status. 2007 Aug. Am J Physiol Regul Integr Comp Physiol. 293(2):R603-11. Bello NT. Hajnal A. Acute methylphenidate treatments reduce sucrose intake in restricted-fed bingeing rats. 2006 Oct 16. Brain Res Bull. 70(4-6):422-9. National Institute of Diabetes and Digestive and Kidney Diseases National Institute of Neurological Disorders and Stroke De Jonghe BC. Hajnal A. Covasa M. Decreased gastric mechanodetection, but preserved gastric emptying, in CCK-1 receptor-deficient OLETF rats. 2006 Oct. Am J Physiol Gastrointest Liver Physiol. 291(4):G640-9. National Institute of Diabetes and Digestive and Kidney Diseases Norgren R. Hajnal A. Mungarndee SS. Gustatory reward and the nucleus accumbens. 2006 Nov 30. Physiol Behav. 89(4):531-5. National Institute on Deafness and other Communication Disorders National Institute of Diabetes and Digestive and Kidney Diseases Liang NC. Hajnal A. Norgren R. Sham feeding corn oil increases accumbens dopamine in the rat. 2006 Nov. Am J Physiol Regul Integr Comp Physiol. 291(5):R1236-9. National Institute on Deafness and other Communication Disorders National Institute of Diabetes and Digestive and Kidney Diseases Bello NT. Hajnal A. Alterations in blood glucose levels under hyperinsulinemia affect accumbens dopamine. 2006 Jun 15. Physiol Behav. 88(1-2):138-45. Albaugh VL. Henry CR. Bello NT. Hajnal A. Lynch SL. Halle B. Lynch CJ. Hormonal and metabolic effects of olanzapine and clozapine related to body weight in rodents. 2006 Jan. Obesity (Silver Spring). 14(1):36-51. National Institute of Diabetes and Digestive and Kidney Diseases Corwin RL. Hajnal A. Too much of a good thing: neurobiology of non-homeostatic eating and drug abuse. 2005 Sep 15. Physiol Behav. 86(1-2):5-8. Hajnal A. Norgren R. Taste pathways that mediate accumbens dopamine release by sapid sucrose. 2005 Mar 16. Physiol Behav. 84(3):363-9. National Institute on Deafness and other Communication Disorders National Institute of Diabetes and Digestive and Kidney Diseases De Jonghe BC. Hajnal A. Covasa M. Increased oral and decreased intestinal sensitivity to sucrose in obese, prediabetic CCK-A receptor-deficient OLETF rats. 2005 Jan. Am J Physiol Regul Integr Comp Physiol. 288(1):R292-300. National Institute of Diabetes and Digestive and Kidney Diseases Hajnal A. Covasa M. Bello NT. Altered taste sensitivity in obese, prediabetic OLETF rats lacking CCK-1 receptors. 2005 Dec. Am J Physiol Regul Integr Comp Physiol. 289(6):R1675-86. National Institute of Diabetes and Digestive and Kidney Diseases De Jonghe BC. Di Martino C. Hajnal A. Covasa M. Brief intermittent access to sucrose differentially modulates prepulse inhibition and acoustic startle response in obese CCK-1 receptor deficient rats. 2005 Aug 2. Brain Res. 1052(1):22-7. National Institute of Diabetes and Digestive and Kidney Diseases Hajnal A. Smith GP. Norgren R. Oral sucrose stimulation increases accumbens dopamine in the rat. 2004 Jan. Am J Physiol Regul Integr Comp Physiol. 286(1):R31-7. National Institute on Deafness and other Communication Disorders Hajnal A. Norgren R. Sucrose sham feeding decreases accumbens norepinephrine in the rat. 2004 Aug. Physiol Behav. 82(1):43-7. National Institute on Deafness and other Communication Disorders National Institute of Diabetes and Digestive and Kidney Diseases Bello NT. Sweigart KL. Lakoski JM. Norgren R. Hajnal A. Restricted feeding with scheduled sucrose access results in an upregulation of the rat dopamine transporter. 2003 May. Am J Physiol Regul Integr Comp Physiol. 284(5):R1260-8. National Institute on Aging National Institute on Deafness and other Communication Disorders National Institute of Diabetes and Digestive and Kidney Diseases Hajnal A. Norgren R. Repeated access to sucrose augments dopamine turnover in the nucleus accumbens. 2002 Dec 3. Neuroreport. 13(17):2213-6. National Institute on Deafness and other Communication Disorders Bello NT. Lucas LR. Hajnal A. Repeated sucrose access influences dopamine D2 receptor density in the striatum. 2002 Aug 27. Neuroreport. 13(12):1575-8. National Institute on Deafness and other Communication Disorders National Institute of Mental Health Hajnal A. Norgren R. Accumbens dopamine mechanisms in sucrose intake. 2001 Jun 15. Brain Res. 904(1):76-84. National Institute on Deafness and other Communication Disorders National Institute of Mental Health Hajnal A. Székely M. Gálosi R. Lénárd L. Accumbens cholinergic interneurons play a role in the regulation of body weight and metabolism. 2000 Jul 1-15. Physiol Behav. 70(1-2):95-103. Mark GP. Hajnal A. Kinney AE. Keys AS. Self-administration of cocaine increases the release of acetylcholine to a greater extent than response-independent cocaine in the nucleus accumbens of rats. 1999 Mar. Psychopharmacology (Berl). 143(1):47-53. National Institute on Drug Abuse Hajnal A. Takenouchi K. Norgren R. Effect of intraduodenal lipid on parabrachial gustatory coding in awake rats. 1999 Aug 15. J Neurosci. 19(16):7182-90. National Institute on Deafness and other Communication Disorders National Institute of Mental Health Hajnal A. Pothos EN. Lénárd L. Hoebel BG. Effects of feeding and insulin on extracellular acetylcholine in the amygdala of freely moving rats. 1998 Feb 23. Brain Res. 785(1):41-8. National Institute of Neurological Disorders and Stroke Hajnal A. Mark GP. Keys AS. Lénárd L. Involvement of dopamine and acetylcholine in the interaction between amygdala and nucleus accumbens: chronic microdialysis in rats. 1998. Neurobiology (Bp). 6(3):363-7. National Institute on Drug Abuse Hajnal A. Mark GP. Rada PV. Lénárd L. Hoebel BG. Norepinephrine microinjections in the hypothalamic paraventricular nucleus increase extracellular dopamine and decrease acetylcholine in the nucleus accumbens: relevance to feeding reinforcement. 1997 Feb. J Neurochem. 68(2):667-74. National Institute of Neurological Disorders and Stroke Hajnal A. Lénárd L. Feeding-related dopamine in the amygdala of freely moving rats. 1997 Aug 18. Neuroreport. 8(12):2817-20. Hajnal A. Lénárd L. Czurkó A. Sándor P. Karádi Z. Distribution and time course of appearance of "dark" neurons and EEG activity after amygdaloid kainate lesion. 1997. Brain Res Bull. 43(2):235-43. Gálosi R. Hajnal A. Lénárd L. Nucleus accumbens and body weight regulation: neurochemical lesions. 1997. Neurobiology (Bp). 5(1):67-70. Petykó Z. Lénád L. Sümegi B. Hajnal A. Csete B. Faludi B. Jandó G. Learning disturbances in offsprings of zidovudine (AZT) treated rats. 1997. Neurobiology (Bp). 5(1):83-5. Gálosi R. Hajnal A. Fendler K. Lénárd L. Effect of catecholaminergic lesions of medial prefrontal cortex on regulation of body weight and glucose preference. 1997. Neurobiology (Bp). 5(4):469-72. Hajnal A. Gálosi R. Lénárd L. Role of accumbens cholinergic interneurons in the maintenance of body weight. 1997. Neurobiology (Bp). 5(4):473-6. Pungor K. Hajnal A. Kékesi KA. Juhász G. Paradoxical sleep deprivatory effect of a single low dose of MPTP which did not produce dopaminergic cell loss. 1993. Exp Brain Res. 95(3):473-6. Sándor P. Hajnal A. Jandó G. Karádi Z. Lénárd L. Microelectrophoretic application of kainic acid into the globus pallidus: disturbances in feeding behavior. 1992 May. Brain Res Bull. 28(5):751-6. Hajnal A. Sándor P. Jandó G. Vida I. Czurkó A. Karádi Z. Lénárd L. Feeding disturbances and EEG activity changes after amygdaloid kainate lesions in the rat. 1992 Dec. Brain Res Bull. 29(6):909-16. Lénárd L. Karádi Z. Jandó G. Yoshimatsu H. Hajnal A. Sándor P. Oomura Y. Feeding and body weight regulation after 6-OHDA application into the preoptic area. 1991 Sep-Oct. Brain Res Bull. 27(3-4):359-65. Lénárd L. Sándor P. Hajnal A. Jandó G. Karádi Z. Kai Y. Sex-dependent body weight changes after iontophoretic application of kainic acid into the LH or VMH. 1991 Jan. Brain Res Bull. 26(1):141-8. Czurkó A. Faludi B. Vida I. Niedetzky C. Hajnal A. Karádi Z. Lénárd L. Effect of electrophoretically applied neurochemicals on activity of extrapyramidal and limbic neurons in the rat. 1991-92. Acta Biochim Biophys Hung. 26(1-4):57-60. Hajnal A. Abrahám I. Vida I. Karádi Z. Lénárd L. Hunger- and satiety-related changes of amygdaloid catecholamines: a microdialytic study in freely moving rats. 1991-92. Acta Biochim Biophys Hung. 26(1-4):67-9. Hajnal A. Czurkó A. Karádi Z. Lénárd L. Local and distant effects of amygdaloid kainate lesions in the rat: a silver impregnation study. 1991-92. Acta Biochim Biophys Hung. 26(1-4):71-3. Lénárd L. Jandó G. Karádi Z. Hajnal A. Sándor P. Lateral hypothalamic feeding mechanisms: iontophoretic effects of kainic acid, ibotenic acid and 6-hydroxydopamine. 1988 Jun. Brain Res Bull. 20(6):847-56.