Andre Ragnauth, Ph.D.

Assistant Medical Professor
Physiology and Pharmacology

School of Biomedical Education

Office: H-310
Phone: (212) 650-7803
Fax: (212) 650-7726
E-mail: ragnautha@med.cuny.edu

Education

B.A., 1994, Queens College, City University of New York;
M.S., 1995, Queens College, City University of New York;
Ph.D., 2000, City University of New York.

Research Interests

• Studying the effects of genetic modifications relevant to a variety of psychiatric and psychological disorders, including drug addiction, Alzheimer's disease, Parkinson's disease and autism
• Animal models of psychiatric disorders

Publications

• Burdick, K., Yu, W.-Z., Ragnauth, A., Moroz, M., Pan, Y.X., Rossi, G.C., Pasternak, G.W. Bodnar, R.J. Antisense mapping of opioid receptor clones: effects upon 2-deoxy-D-glucose-induced hyperphagia. Brain Research, 794: 359-363, 1998.
• Spinella, M., Znamensky, V., Moroz, M., Ragnauth, A., Bodnar, R.J. Actions of NMDA and cholinergic receptor antagonists in the rostral ventromedial medulla upon -endorphin analgesia elicited from the ventrolateral periaqueductal gray. Brain Research 829: 151–159, 1999.
• Ragnauth, A., Moroz M., Bodnar, R.J. Multiple opioid receptors mediate feeding elicited by mu and delta opioid receptor subtype agonists in the nucleus accumbens shell in rats. Brain Research 876:76–87, 2000.
• Ragnauth, A., Znamensky, V., Moroz, M., Bodnar, R.J. Analysis of dopamine receptor antagonism upon feeding elicited by mu and delta opioid agonists in the shell region of the nucleus accumbens. Brain Research 877: 65–72, 2000.
• Ragnauth, A., Schuller, A., Morgan, M., Chan. J., Ogawa, S., Pintar, J., Bodnar, R.J., Pfaff, D.W. Female Preproenkephalin knockout mice display altered emotional responses. Proc Nat Acad Sci., 98 (4): 1958-1963, 2001.
• Znamensky, V., Echo, J., Lamonte, N., Christian, G., Ragnauth, A., Bodnar, R.J. GABA receptor subtype antagonists differentially alter opioid-induced feeding in the shell-region of the nucleus accumbens in rats. Brain Research, 906: 84-91, 2001.
• Kow, L. -M, Vasudevan, N., Devidze, N., Ragnauth, A., Pfaff, D.W. Mechanisms of steroid hormone actions on hypothalamic nerve cells: Molecular and biophysical studies relevant for hormone dependent behaviors. In Hormones and the Brain(Research and Perspectives in Endocrine Interactions), ed. Kordon et.al., Springer-Verlag, Berlin-Heidelberg, November, 2004.
• Ragnauth, A., Brewer, C., Ogawa, S., Muglia, L., Pfaff, DW, Kow, L.-M. Vasopressin stimulates ventromedial hypothalamic neurons with oxytocin receptors in oxytocin gene knockout male and female mice.  Neuroendocrinology,80 (2):92-9, 2004.
• Ragnauth, A., Moy, V., Brewer, C., Kow, L.-M., Ogawa, S., Pfaff, D.W. Female oxytocin gene knockout (OTKO) mice in a semi-natural environment (SNE) exhibit altered aggressive behaviors. Genes, Brain & Behavior, 4 (4):229-39, 2005.
• Cataldo G, Bernal S, Markowitz A, Ogawa S, Ragnauth, A., Pfaff DW, Bodnar, R.J. Organizational manipulation of gonadal hormones and systemic morphine analgesia in female rats: effects of adult ovariectomy and estradiol replacement. Brain Research, 1059 (1):13-9, 2005.
• Rodriguiz R.M., Gadnidze K., Ragnauth A., Dorr N., Yanagisawa M, Wetsel, W.C., and Devi L.A.. Animals lacking endothelin converting enzyme-2 are deficient in learning and memory. Genes Brain and Behavior, Nov, 2007 [epub. available online].
• Juni, A., Klein, G., Kowalcyyk, B., Ragnauth, A., Kest, B. Sex differences in hyperalgesia during morphine infusion: Effect of gonadectomy and estrogen treatment. Neuropharmcology, April 2008 [epub. available online].
• Elder, G.A., Ragnauth, A., Dorr, N. Franciosi, S., Schmeidler, J., Haroutunian, V., and Buxbaum, J.D. (2008). Increased locomotor activity in mice lacking the low-density lipoprotein receptor. Behavioral Brain Research, 22;191(2):256-65.

Last Updated: 9/10/10