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Physiology and Biophysics

Kaushik P. Patel, Ph.D.

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ACADEMIC DEGREES:

BSc, MSc, Ph.D.

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Contact Name: Kaushik P. Patel, Ph.D.
Phone Number: 402-559-8369
e-mail address: Kpatel@unmc.edu

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National Institutes of Health, Volume Reflex in Diabetic Rats, 04-01-94/03-31-99, Principal Investigator.

American Heart Association, Noradrenergic Influences on Renal Function in Heart Failure, 07-01-96/06-30-99, Principal Investigator.

American Diabetes Association, Volume Regulation in Diabetes: Intrarenal Mechanisms, 07-01-98/06-30-00, Principal Investigator.

National Institutes of Health, Volume Regulation in Diabetes: Intrarenal Mechanisms, 05/01/99 to 04/30/04, Principal Investigator.

PPG Grant, Project II, National Institutes of Health, Function of the PVN in Heart Failure: Role of NO and GABA, 04-01-99/03-31-04, Principal Investigator.

National Institutes of Health, Altered nitric oxide mechanisms in the PVn during diabetes, 05-01-99/04-30-04, Principal Investigator.

National Institutes of Health, Cardiopulmonary Reflexes in Heart Failure, 07-01-87/06-30-02, Co-Investigator.

Juvenile Diabetes Foundation International, Renal Microvascular Angiotensin II/Nitric Oxide Interactions in Diabetes Mellitus, Co-Investigator.

American Heart Association, NE Affiliate, Endothelin and Sympathetic Nerve Activity in Heart Failure, 07-01-99/06-30-99, Co-Investigator.

National Institutes of Health, Cardiovascular Research Training Program, 07-01-98/06-30-02, Co-Investigator.

National Institutes of Health, Cerebral Microcirculation During Alcohol Consumption, 01-01-99/12-31-03, Co-Investigator. 

National Institutes of Health, Heart Failure and Sympathetic Outflow, 04-01-99/03-31-04, Co-Investigator.

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Rozanski, G.J., Z. Xu, K. Zhang and K.P. Patel. Altered ionic currents of ventricular nucleus mediates changes in renal sympathetic nerve activity. Am. J. Physiol. 274:H259-H265, 1998.

Patel, K.P. Neural regulation in experimental heart failure. In: Neurocardiology, Ed. D. Cechetto and V. Hachinski, W.B. Saunders, London, pp. 283-296, 1998.

Zhang, K., I.H. Zucker and K.P. Patel. Altered number of diaphorase (NOS) positive neurons in hypothalamus of rats with heart failure. Brain Res. 786:219-225, 1998.

Mayhan, W.G. and K.P. Patel. Treatment with dimethylthiourea prevents impaired dilation of the basilar artery during diabetes mellitus. Am.J. Physiol. 274:H1895-H1901, 1998.

Zhang, K., K.P. Patel. Effect of nitric oxide within the paraventricular nucleus on renal sympathetic nerve discharge: Role of GABA. Am. J. Physiol. 275:R728-R734, 1998.

Ikenage, H., S.P. Didion, K. Zhang, K.G. Cornish, N. Ishii, K.P. Patel, W.G. Mayhan and P.K. Carmines. Suppressed impact of nitric oxide on renal arteriolar function in rats with chronic heart failure. Am. J. Physiol. 276:F79-F87, 1999.

Patel, K.P. Role of paraventricular nucleus in mediating sympathetic outflow in heart failure. Heart Failure Reviews, 2000.

Patel, K.P., K. Zhang, P.K. Carmines. Turnover of norepinephrine in peripheral tissues of rats with heart failure. Am. J. Physiol. Reg. Physiol. 2000.

McConnell, P.I., C.E. Olson, K.P. Patel, D.U. Blank, M.T. Olivari, K.P. Gallagher, E. Quenby-Brown, I.H. Zucker. Chronic endothelin blockade in dogs with pacing-induced heart failure: Possible modulation of sympatho-excitation. J. Cardiac Failure 6(1):56-65, 2000.

Fitch, G.K., K.P. Patel, M.L. Weiss. Activation of renal afferent pathways following furosemide treatment: Effect of survival time and renal denervation. Brain Res., in press, 2000.

Liu, J.-L., S. Irvine, I.A. Reid, K.P. Patel, I.H. Zucker. Chronic exercise reduces sympathetic nerve activity in rabbits with pacing-induced heart failure. Circulation 102:1854-1862, 2000.

Shontz R.D., Xu Z., PATEL, K.P. and Rozanski, G.J. Inhibition of K+ currents by homocysteine in rat ventricular myocytes. J. Cardiac Electrophysiology 12:175-182, 2001.

PATEL, K.P. and Carmines, P.K.  Renal interstitial hydrostatic pressure and sodium excretion during acute volume expansion in diabetic rats. Am. J. Physiol. 281:R239-R245, 2001.

Ishii, N, PATEL, K.P., Lane, P.H., Taylor, T., Bian, K. Murad, F. Pollock, J.S., and Carmines P.K. Nitric oxide synthesis and degradation in the renal cortex of rats with diabetes mellitus. J. Am. Soc. Neph. 12:1630-1639, 2001.

Zucker, I.H., Wang, W., Pliquett, R.U., Jun-Li, L., Irvine, S., and PATEL, K.P.  The regulation of sympathetic outflow in heart failure: The role of Angiotensin II, Nitric oxide and Exercise training.  Ann. New York Academy Sci. 940:431-443, 2001.

Zhang, K., Li, Yi-Fan and PATEL, K.P.  Blunted nitric oxide-mediated inhibition of renal nerve discharge within the paraventricular nucleus of rats with heart failure. Am. J. Physiol. 281:H995-H1004, 2001.

PATEL, K.P., Yi-Fan Li and Y. Hirooka. The role of nitric oxide on central sympathetic outflow. Proc. Soc. Exp. Bio. Med. 226(9):814-824, 2001. (Invited review)

Kenney, M.J., Weiss, M.L., PATEL, K.P., Wang, Yan and Fels, R.J. Paraventricular nucleus bicuculline alters the frequency components of sympathetic nerve discharge bursts. Am .J. Physiol. 281:H1233-H1241, 2001.

Sun, H, PATEL, K.P. and Mayhan, W.G. Tetrahydrobiopterin, a cofactor for NOS, improves endothelial dysfunction during chronic alcohol consumption  Am. J. Physiol. 281:H1863 H1869, 2001.

Weiss, M.L., Chowdhury, S.I., PATEL, K.P., Kenney, M.J.,Huang, J. Neural circuitry of the kidney; NO containing neurons. Brain Res. 919:269-282, 2001.

Li, Yi-Fan, Mayhan,W.G. and PATEL, K.P.  NMDA-mediated increase in renal sympathetic nerve discharge within the PVN: Role of nitric oxide. (Am. J. Physiol. In Press- 2001)

Xu Z., PATEL, K.P., Lou, M.F. and Rozanski, G.J. Up-reulation of K+ channels in diabetic rat ventricular myocytes by insulin and glutathione. (In Press - Cardiovas. Res. 2001)

Li, Yi-Fan, Roy, S.K., Channon, K., Zucker,I.H., and PATEL, K.P.  Effect of in-vivo gene transfer of neuronal nitric oxide synthase (nNOS) in the PVN on renal nerve discharge in rats. (Am. J. Physiol. - In Press- 2001)

Zhang, K., Li, Yi-Fan and PATEL, K.P.  Blunted GABA-mediated inhibition of renal nerve discharge within the paraventricular nucleus of rats with heart failure. (Am. J. Physiol. In Press - 2001)

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  • PREVIOUS GRADUATE STUDENTS/POST-DOCTORAL FELLOWS (present location):

Kun Zhang, 1993-1998, Supervisor
Greg Fitz, 1994-1998, Thesis Committee, Univ. of Kansas
Sean Didion, 1993-1998, Thesis Committee 
Zhi Xu, 1993-1997, Thesis Committee
Jun-Li Liu, 1995-1999, UNMC
Ma Rong, 1995-1999, Thesis Committee, UNMC
Yi-Ming Zhang, 1999-2000

Postdoctoral Trainees
Georges Awah, 1988
Ping L. Zhang, 1992
Kun Zhang, Ph.D. candidate, 1998
Yifan Li, 1999-present
Hong Zheng, 2000-present

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This laboratory’s research interests involve neurogenic mechanisms involved in control of arterial pressure and regulation of body fluid homeostasis in disease states such as diabetes and heart failure; the role of neuropeptides in control of arterial pressure and volume; the interaction between neuropeptides and neurotransmitters; the role of paraventricular nucleus in the volume reflex; the role of renal nerves in the control of arterial pressure and volume; the central noradrenergic mechanisms involved in volume reflex in the diabetic state; intrarenal mechanisms in sodium excretion in diabetic rats; central and peripheral noradrenergic mechanisms involved in heart failure, and the role of paraventricular nucleus in erectile function in normal and disease states. We have disease models for these purposes in 1) heart failure: coronary occlusion in the rat pacing model; 2) hypertension, genetic - SHR, Dahl rats, Goldblatt for kidney research, DOCA-salt, for humoral; and 3) for diabetes, Zucker rats for genetic work and spontaneously diabetic rats.

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Coronary occlusion in rat pacing model; diabetes (STZ-induced diabetes); catecholamines GABA and glutamate with HPLC measurements; hemodynamic measurements; nerve recording and stimulation; brain manipulations using stereotaxic apparatus; c-fos measurements in brain sites; nNOS genetic messages; histochemistry, Western blotting.

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