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Research Profile - College of Medicine and Health Science - United ...

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Department <strong>of</strong> Physiology<br />

around one year <strong>of</strong> age in the rat. These<br />

investigations have included studies on<br />

catecholamine metabolism <strong>and</strong> h<strong>and</strong>ling at<br />

nerve endings, the levels <strong>of</strong> peptide markers as<br />

well as sensory testing. More recently changes<br />

in gene expression in sympathetic <strong>and</strong> dorsal<br />

root ganglia have been studied using real time<br />

RT-PCR. There have been dramatic differences<br />

in the expression <strong>of</strong> genes encoding<br />

neurotransmitter synthesis, transport,<br />

metabolism <strong>and</strong> reuptake in different parts <strong>of</strong><br />

the sympathetic chain.<br />

Changes in gene expression in the diabetic eye,<br />

in sympathetic <strong>and</strong> dorsal root ganglia, corpus<br />

cavernosum <strong>and</strong> vascular tissues are being<br />

investigated by low density expression array in<br />

studies funded by the Emirates Foundation <strong>and</strong><br />

the FMHS by Pr<strong>of</strong>essors Adrian <strong>and</strong> Morrison.<br />

Diabetes <strong>and</strong> heart function<br />

Human <strong>and</strong> animal studies have shown that<br />

diabetes can be associated with altered cardiac<br />

function that is independent <strong>of</strong> vascular<br />

complications. A variety <strong>of</strong> techniques including<br />

biotelemetry, electrophysiology, molecular<br />

biology <strong>and</strong> confocal microscopy are being<br />

employed to investigate the cellular <strong>and</strong> subcellular<br />

mechanisms which may be responsible<br />

for contractility <strong>and</strong> heart rhythm defects in<br />

the diabetic heart.<br />

Acquisition <strong>of</strong> electrocardiography data in the<br />

Biotelemetry Laboratory<br />

74

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