Effects of chromosome 17 on features of the metabolic syndrome in the Lyon hypertensive rat (original) (raw)

2008, Physiological Genomics

The metabolic syndrome (involving obesity, hypertension, dyslipidemia, insulin resistance, and a proinflammatory/prethrombotic state) is a major risk factor for cardiovascular disease. Its incidence continues to rise, in part because of the epidemic increase in obesity. The Lyon hypertensive (LH) rat is a model for hypertension and several other features of the metabolic syndrome, having high body weight, plasma cholesterol, and triglycerides, increased insulin-to-glucose ratio, and salt-sensitive hypertension. Previous genetic studies in LH/Mav rats and a normotensive control (LN/Mav) identified quantitative trait loci (QTLs) on rat chromosome (RNO)17 for multiple features of the metabolic syndrome. To further evaluate the role of RNO17 in the LH rat, we generated a consomic strain (LH-17BN) by substituting LH RNO17 with that of the sequenced Brown Norway (BN/NHsdMcwi) rat. Male LH and BN rats and LH-17BNrats were characterized for blood pressure and metabolic and morphological par...

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