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Brian A. Jackson, Ph.D.
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brian.jackson@uky.edu
(859) 323-8503 (Physiology)
(859) 257-7132 (The Graduate School)
800 Rose Street, Medical Science Building, Rm: MS-501, Lexington, KY 40536-0298; 502 Administration Drive, Gillis Building, Rm:202-B, Lexington, KY 40506-0033
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Position(s): 
Professor
Interim Dean, The Graduate School
Director of Education
Affiliation(s): 
Physiology
Cardiovascular Research Center
Other Affiliation(s): 
CVRC - Affiliated Faculty
Interests / Specialties: 
Regulation of Renal Transport and Adrenal Catecholamine Synthesis and Secretion.
Bio / Education: 

B.Sc. University of Sheffied, 1974
Ph.D. University of Sheffield, 1977

Research Description: 

We have conducted studies in two distinct organ systems, the kidney and the adrenal medulla. Our renal study tests the hypothesis that NaCl homeostasis is maintained at least in part, by an entero-renal endocrine axis in which urinary NaCl excretion is rapidly regulated by two recently identified peptides, uroguanylin (UGN) and guanylin (GN), which are released from the gastrointestinal tract in response to altered NaCl intake. This work utilizes classical renal physiological techniques such as in vitro microperfusion and in vivo micropuncture, in combination with cellular and molecular biological analysis of microdissected renal tubular segments and renal epithelial cells in culture.

The long-term goal of our adrenal project is to identify factors that modulate catecholamine synthesis and secretion in adrenal medullary chromaffin cells. We are testing the hypothesis that both intrinsic and extrinsic factors can affect both processes by modulating the activity of critical signal transduction pathways including nicotinic receptor-dependent increases in intracellular calcium via voltage-gated calcium channels, and peptidergic receptor-dependent increases in intracellular cAMP. These experiments utilize diverse techniques including patch-clamp analysis of ion channels, fluorescence imaging of intracellular calcium, carbon-fiber amperometric analysis of single-cell catecholamine secretion, RT-PCR and northern blotting.

Selected Publications: 

Kim BG, Adams JM, Jackson BA, Lindemann MD. Effects of chromium (III) picolinate on cortisol and DHEAs secretion in H29R human adrenocortical cells. Biol. Trace Elem. Res. 133: 171-180, 2009.

Adams JM, Legan SJ, Ott CE, Jackson BA. Modulation of stress-induced increases in plasma epinephrine by estrogen in the female rat. J. Neurosci Res. 79: 360-367, 2005.

Carrithers SL, Hill MJ, Johnson BR, Chang JJ, Shah RG, Trumbore JN, Sun C, Mann EA, Forte LR, Jackson BA, Ott CE, Giannella RA, Greenberg RN. Guanylin and uroguanlyn induce natriuresis in mice lacking guanylyl cyclase-C receptor. Kidney Int. 65:4053, 2004.

Grider J, Ott E, Jackson B. Fendoldopam-dependent inhibition of NaCl transport in the medullary thick ascending limb of the rat; mechanism of action. Europ. J. Pharmacol. 473:185-190, 2003.

Carrithers SL, Jackson BA, Greenberg RN, Ott Ce. Regulation of intestinal guanylin and uroguanylin expression by dietary salt intake. Regulatory Peptides 107:87-95, 2002.

Li X, Titlow WB, Jackson BA, Giltiay N, Nikolova Karakashian M, Uittenbogaard A, Smart EJ. High-density lipoprotein binding to scavenger receptor class B, type-1 activates endothelial nitric oxide synthesis in a ceramide-dependent manner(pdf). J. Biol. Chem. 277:11058-11063, 2002.

Other Publications

800 Rose Street, MS508
Lexington, KY 40536
Phone: 859-323-0886
Fax: 859-323-1070
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