Cardiovascular Diabetology
Volume 7
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 CommentaryGenetic and dietary salt contributors to insulin resistance in Dahl salt-sensitive (S) ratsMarlene F Shehata  Department of Cellular and Molecular Medicine, University of Ottawa Heart Institute, Ottawa, Ontario, Canada  author email corresponding author email
Cardiovascular Diabetology 2008,
7:7doi:10.1186/1475-2840-7-7 Abstract
Insulin resistance has been extensively investigated during the past decade because of its proposed role in initiating a cluster of cardiovascular risk factors including hypertension. Insulin resistance is an inherited genetic trait that precedes hypertension in Dahl salt-sensitive (S) rats, and is not present in Dahl salt-resistant (R) rats. Owing to the co-existence of insulin resistance and salt sensitivity of blood pressure in Dahl S, but not R rats, Dahl S rats are used to elucidate the role of dietary salt as a potential link in exacerbating both phenotypes (insulin resistance and salt sensitivity). In light of available data, examining the impact of dietary salt on insulin resistance in Dahl S rats in terms of salt concentration and duration of exposure helps answer the following question: What percentage of dietary salt and for what duration of exposure would we expect an enhanced insulin resistance in Dahl S rats? This commentary gathers all available research done on insulin resistance in Dahl S rats in an attempt to unravel dietary salt contribution to insulin resistance in Dahl S rats. | 
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