• 2684 Citations
  • 29 h-Index
19992020

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2020

Consumption of a high energy density diet triggers microbiota dysbiosis, hepatic lipidosis, and microglia activation in the nucleus of the solitary tract in rats

Minaya, D. M., Turlej, A., Joshi, A., Nagy, T., Weinstein, N., DiLorenzo, P., Hajnal, A. & Czaja, K., Dec 1 2020, In : Nutrition and Diabetes. 10, 1, 20.

Research output: Contribution to journalArticle

Open Access
2019

Roux-en-Y gastric bypass in rat reduces mu-opioid receptor levels in brain regions associated with stress and energy regulation

McGregor, M., Hamilton, J., Hajnal, A. & Thanos, P. K., Jun 2019, In : PloS one. 14, 6, e0218680.

Research output: Contribution to journalArticle

Open Access
1 Scopus citations

Roux-en-Y gastric bypass surgery triggers rapid DNA fragmentation in vagal afferent neurons in rats

Minaya, D. M., Di Lorenzo, P. M., Hajnal, A. & Czaja, K., Jan 1 2019, In : Acta neurobiologiae experimentalis. 79, 4, p. 432-444 13 p.

Research output: Contribution to journalArticle

Open Access
1 Scopus citations

Taste Responses in the Nucleus of the Solitary Tract of Awake Obese Rats Are Blunted Compared With Those in Lean Rats

Weiss, M. S., Hajnal, A., Czaja, K. & Di Lorenzo, P. M., Jul 30 2019, In : Frontiers in Integrative Neuroscience. 13, 35.

Research output: Contribution to journalArticle

Open Access
1 Scopus citations
2018

Antidepressant-like effects of insulin and IGF-1 are mediated by IGF-1 receptors in the brain

Mueller, P. L., Pritchett, C. E., Wiechman, T. N., Zharikov, A. & Hajnal, A., Oct 2018, In : Brain Research Bulletin. 143, p. 27-35 9 p.

Research output: Contribution to journalArticle

1 Scopus citations

Effect of vertical sleeve gastrectomy on alcohol consumption and preferences in dietary obese rats and mice: A plausible role for altered ghrelin signaling

Orellana, E. R., Jamis, C., Horvath, N. & Hajnal, A., Apr 2018, In : Brain Research Bulletin. 138, p. 26-36 11 p.

Research output: Contribution to journalArticle

11 Scopus citations

Roux-en-Y gastric bypass surgery normalizes dopamine D1, D2, and DAT levels

Hamilton, J., Swenson, S., Hajnal, A. & Thanos, P. K., Oct 2018, In : Synapse. 72, 10, e22058.

Research output: Contribution to journalArticle

4 Scopus citations

Taste and odor preferences following roux-en-Y surgery in humans

Kittrell, H., Graber, W., Mariani, E., Czaja, K., Hajnal, A. & Di Lorenzo, P. M., Jul 2018, In : PloS one. 13, 7, e0199508.

Research output: Contribution to journalArticle

7 Scopus citations
2017

Diet-driven microbiota dysbiosis is associated with vagal remodeling and obesity

Sen, T., Cawthon, C. R., Ihde, B. T., Hajnal, A., DiLorenzo, P. M., de La Serre, C. B. & Czaja, K., May 1 2017, In : Physiology and Behavior. 173, p. 305-317 13 p.

Research output: Contribution to journalArticle

72 Scopus citations

Energy-dense diet triggers changes in gut microbiota, reorganization of gut-brain vagal communication and increases body fat accumulation

Vaughn, A. C., Cooper, E. M., Dilorenzo, P. M., O’Loughlin, L. J., Konkel, M. E., Peters, J. H., Hajnal, A., Sen, T., Lee, S. H., de La Serre, C. B. & Czaja, K., Jan 1 2017, In : Acta neurobiologiae experimentalis. 77, 1, p. 18-30 13 p.

Research output: Contribution to journalArticle

Open Access
53 Scopus citations
2016
13 Scopus citations

Increased intravenous morphine self-administration following Roux-en-Y gastric bypass in dietary obese rats

Biegler, J. M., Freet, C., Horvath, N., Rogers, A. & Hajnal, A., May 1 2016, In : Brain Research Bulletin. 123, p. 47-52 6 p.

Research output: Contribution to journalArticle

10 Scopus citations
2015

Acute metabolic effects of olanzapine depend on dose and injection site

Klingerman, C. M., Stipanovic, M. E., Hajnal, A. & Lynch, C. J., Nov 29 2015, In : Dose-Response. 13, 4

Research output: Contribution to journalArticle

4 Scopus citations

Low expression of D2R and wntless correlates with high motivation for heroin

Tacelosky, D. M., Alexander, D. N., Morse, M., Hajnal, A., Berg, A., Levenson, R. & Grigson-Kennedy, P. S., Dec 1 2015, In : Behavioral Neuroscience. 129, 6, p. 744-755 12 p.

Research output: Contribution to journalArticle

9 Scopus citations

RNA sequencing reveals a slow to fast muscle fiber type transition after olanzapine infusion in rats

Lynch, C. J., Xu, Y., Hajnal, A., Salzberg, A. C. & Kawasawa, Y. I., Apr 20 2015, In : PloS one. 10, 4, e0123966.

Research output: Contribution to journalArticle

6 Scopus citations

Roux-en-Y gastric bypass alters brain activity in regions that underlie reward and taste perception

Thanos, P. K., Michaelides, M., Subrize, M., Miller, M. L., Bellezza, R., Cooney, R. N., Leggio, L., Wang, G. J., Rogers, A. M., Volkow, N. D. & Hajnal, A., Jun 3 2015, In : PloS one. 10, 6, e0125570.

Research output: Contribution to journalArticle

15 Scopus citations

Sleeve gastrectomy and roux-en-y gastric bypass alter the gut-brain communication

Ballsmider, L. A., Vaughn, A. C., David, M., Hajnal, A., Di Lorenzo, P. M. & Czaja, K., 2015, In : Neural Plasticity. 2015, 601985.

Research output: Contribution to journalArticle

34 Scopus citations

The role of catecholamine innervation in the medial prefrontal cortex on the regulation of body weight and food intake

Gálosi, R., Hajnal, A., Petykó, Z., Hartmann, G., Karádi, Z. & Lénárd, L., Jun 1 2015, In : Behavioural Brain Research. 286, p. 318-327 10 p.

Research output: Contribution to journalArticle

8 Scopus citations
2014

Alloisoleucine differentiates the branched-chain aminoacidemia of Zucker and dietary obese rats

Olson, K. C., Chen, G., Xu, Y., Hajnal, A. & Lynch, C. J., May 2014, In : Obesity. 22, 5, p. 1212-1215 4 p.

Research output: Contribution to journalArticle

14 Scopus citations
2013

Cocaine- and amphetamine-regulated transcript (CART) peptide immunoreactivity in feeding- and reward-related brain areas of young OLETF rats

Armbruszt, S., Abraham, H., Figler, M., Kozicz, T. & Hajnal, A., May 1 2013, In : Journal of Chemical Neuroanatomy. 50-51, 1, p. 75-84 10 p.

Research output: Contribution to journalArticle

6 Scopus citations

Improvement in hepatic insulin sensitivity after Roux-en-Y gastric bypass in a rat model of obesity is partially mediated via hypothalamic insulin action

Paranjape, S. A., Chan, O., Zhu, W., Acharya, N. K., Rogers, A. M., Hajnal, A. & Sherwin, R. S., Sep 1 2013, In : Diabetologia. 56, 9, p. 2055-2058 4 p.

Research output: Contribution to journalArticle

12 Scopus citations

Roux-en-Y gastric bypass increases intravenous ethanol self-administration in dietary obese rats

Polston, J. E., Pritchett, C. E., Tomasko, J. M., Rogers, A. M., Leggio, L., Thanos, P. K., Volkow, N. D. & Hajnal, A., Dec 31 2013, In : PloS one. 8, 12, e83741.

Research output: Contribution to journalArticle

29 Scopus citations
42 Scopus citations
2012

Alcohol Reward Is Increased after Roux-en-Y Gastric Bypass in Dietary Obese Rats with Differential Effects following Ghrelin Antagonism

Hajnal, A., Zharikov, A., Polston, J. E., Fields, M. R., Tomasko, J., Rogers, A. M., Volkow, N. D. & Thanos, P. K., Nov 7 2012, In : PloS one. 7, 11, e49121.

Research output: Contribution to journalArticle

44 Scopus citations

Gastric bypass increases ethanol and water consumption in diet-induced obese rats

Thanos, P. K., Subrize, M., Delis, F., Cooney, R. N., Culnan, D., Sun, M., Wang, G. J., Volkow, N. D. & Hajnal, A., Dec 2012, In : Obesity Surgery. 22, 12, p. 1884-1892 9 p.

Research output: Contribution to journalArticle

38 Scopus citations

Glucagon-like peptide-1 regulation of carbohydrate intake is differentially affected by obesogenic diets

Pritchett, C. E. & Hajnal, A., Feb 1 2012, In : Obesity. 20, 2, p. 313-317 5 p.

Research output: Contribution to journalArticle

9 Scopus citations

Transformation of postingestive glucose responses after deletion of sweet taste receptor subunits or gastric bypass surgery

Geraedts, M. C. P., Takahashi, T., Vigues, S., Markwardt, M. L., Nkobena, A., Cockerham, R. E., Hajnal, A., Dotson, C. D., Rizzo, M. A. & Munger, S. D., Jan 1 2012, In : American Journal of Physiology - Endocrinology and Metabolism. 303, 4, p. E464-E474

Research output: Contribution to journalArticle

52 Scopus citations
2011

Could the mechanisms of bariatric surgery hold the key for novel therapies? Report from a Pennington Scientific Symposium

Tam, C. S., Berthoud, H. R., Bueter, M., Chakravarthy, M. V., Geliebter, A., Hajnal, A., Holst, J., Kaplan, L., Pories, W., Raybould, H., Seeley, R., Strader, A. & Ravussin, E., Nov 1 2011, In : Obesity Reviews. 12, 11, p. 984-994 11 p.

Research output: Contribution to journalArticle

38 Scopus citations

Obesogenic diets may differentially alter dopamine control of sucrose and fructose intake in rats

Pritchett, C. E. & Hajnal, A., Jul 25 2011, In : Physiology and Behavior. 104, 1, p. 111-116 6 p.

Research output: Contribution to journalArticle

22 Scopus citations
2010

Altered orosensory sensitivity to oils in CCK-1 receptor deficient rats

Swartz, T. D., Hajnal, A. & Covasa, M., Jan 12 2010, In : Physiology and Behavior. 99, 1, p. 109-117 9 p.

Research output: Contribution to journalArticle

11 Scopus citations

Gastric bypass surgery alters behavioral and neural taste functions for sweet taste in obese rats

Hajnal, A., Kovacs, P., Ahmed, T., Meirelles, K., Lynch, C. J. & Cooney, R. N., Oct 1 2010, In : American Journal of Physiology - Gastrointestinal and Liver Physiology. 299, 4, p. G967-G979

Research output: Contribution to journalArticle

76 Scopus citations
2009

Cocaine- and amphetamine-regulated transcript peptide immunoreactivity in the brain of the CCK-1 receptor deficient obese OLETF rat

Abraham, H., Covasa, M. & Hajnal, A., Jul 1 2009, In : Experimental Brain Research. 196, 4, p. 545-556 12 p.

Research output: Contribution to journalArticle

10 Scopus citations

In vivo electrophysiological effects of insulin in the rat brain

Kovacs, P. & Hajnal, A., Aug 1 2009, In : Neuropeptides. 43, 4, p. 283-293 11 p.

Research output: Contribution to journalArticle

22 Scopus citations
2008

Altered dopamine D2 receptor function and binding in obese OLETF rat

Hajnal, A., Margas, W. M. & Covasa, M., Jan 31 2008, In : Brain Research Bulletin. 75, 1, p. 70-76 7 p.

Research output: Contribution to journalArticle

33 Scopus citations

Altered pontine taste processing in a rat model of obesity

Kovacs, P. & Hajnal, A., Oct 1 2008, In : Journal of neurophysiology. 100, 4, p. 2145-2157 13 p.

Research output: Contribution to journalArticle

18 Scopus citations
2007
26 Scopus citations

Conditioned preference for sweet stimuli in OLETF rat: Effects of food deprivation

De Jonghe, B. C., Hajnal, A. & Covasa, M., May 1 2007, In : American Journal of Physiology - Regulatory Integrative and Comparative Physiology. 292, 5, p. R1819-R1827

Research output: Contribution to journalArticle

10 Scopus citations

Disruption of BCATm in Mice Leads to Increased Energy Expenditure Associated with the Activation of a Futile Protein Turnover Cycle

She, P., Reid, T. M., Bronson, S. K., Vary, T. C., Hajnal, A., Lynch, C. J. & Hutson, S. M., Sep 5 2007, In : Cell Metabolism. 6, 3, p. 181-194 14 p.

Research output: Contribution to journalArticle

233 Scopus citations

Dopamine D2 receptors contribute to increased avidity for sucrose in obese rats lacking CCK-1 receptors

Hajnal, A., De Jonghe, B. C. & Covasa, M., Aug 24 2007, In : Neuroscience. 148, 2, p. 584-592 9 p.

Research output: Contribution to journalArticle

20 Scopus citations
34 Scopus citations
40 Scopus citations
2006

Acute methylphenidate treatments reduce sucrose intake in restricted-fed bingeing rats

Bello, N. T. & Hajnal, A., Oct 16 2006, In : Brain Research Bulletin. 70, 4-6, p. 422-429 8 p.

Research output: Contribution to journalArticle

22 Scopus citations

Alterations in blood glucose levels under hyperinsulinemia affect accumbens dopamine

Bello, N. T. & Hajnal, A., Jun 15 2006, In : Physiology and Behavior. 88, 1-2, p. 138-145 8 p.

Research output: Contribution to journalArticle

30 Scopus citations
5 Scopus citations

Gustatory reward and the nucleus accumbens

Norgren, R., Hajnal, A. & Mungarndee, S. S., Nov 30 2006, In : Physiology and Behavior. 89, 4, p. 531-535 5 p.

Research output: Contribution to journalArticle

121 Scopus citations

Hormonal and metabolic effects of olanzapine and clozapine related to body weight in rodents

Albaugh, V. L., Henry, C. R., Bello, N. T., Hajnal, A., Lynch, S. L., Halle, B. & Lynch, C. J., Jan 1 2006, In : Obesity. 14, 1, p. 36-51 16 p.

Research output: Contribution to journalArticle

119 Scopus citations

Sham feeding corn oil increases accumbens dopamine in the rat

Liang, N. C., Hajnal, A. & Norgren, R., Nov 24 2006, In : American Journal of Physiology - Regulatory Integrative and Comparative Physiology. 291, 5, p. R1236-R1239

Research output: Contribution to journalArticle

132 Scopus citations
2005

Altered taste sensitivity in obese, prediabetic OLETF rats lacking CCK-1 receptors

Hajnal, A., Covasa, M. & Bello, N. T., Dec 1 2005, In : American Journal of Physiology - Regulatory Integrative and Comparative Physiology. 289, 6 58-6, p. R1675-R1686

Research output: Contribution to journalArticle

49 Scopus citations

Brief intermittent access to sucrose differentially modulates prepulse inhibition and acoustic startle response in obese CCK-1 receptor deficient rats

De Jonghe, B. C., Di Martino, C., Hajnal, A. & Covasa, M., Aug 2 2005, In : Brain research. 1052, 1, p. 22-27 6 p.

Research output: Contribution to journalArticle

7 Scopus citations
50 Scopus citations