Diabetes and Hypertension Differentially Affect Renal Catecholamines and Renal Reactive Oxygen Species

Diabetes and Hypertension Differentially Affect Renal Catecholamines and Renal Reactive Oxygen Species Anna M. D. Watson1,2*, Eleanor A. M. Gould2, Sally A. Penfold2, Gavin W. Lambert2,3, Putra Riza Pratama2, Aozhi Dai1, Stephen P. Gray2, Geoffrey A. Head2† and Karin A. Jandeleit-Dahm1,2† 1Department of Diabetes, Central Clinical School, Faculty of Medicine, Nursing and Health Sciences, Monash University, Melbourne, VIC, Australia 2Baker Heart and Diabetes Institute, Melbourne, VIC, Australia 3Iverson Health Innovation Research Institute, Faculty of Health, Arts and Design, Swinburne University of Technology, Hawthorn, VIC, Australia Patients with diabetic hypertensive nephropathy have accelerated disease progression. Diabetes and hypertension have both been associated with changes in renal catecholamines and reactive oxygen species. With a specific focus on renal catecholamines and oxidative stress we examined a combined model of hypertension and diabetes using normotensive BPN/3J and hypertensive BPH/2J Schlager mice. Induction of diabetes (5 × 55 mg/kg streptozotocin i.p.) did not change the hypertensive status of BPH/2J mice (telemetric 24 h avg. MAP, non-diabetic 131 ± 2 vs. diabetic 129 ± 1 mmHg, n.s at 9 weeks of study). Diabetes-associated albuminuria was higher in BPH/2J vs. diabetic BPN/3J (1205 + 196/-169 versus 496 + 67/-59 μg/24 h, p = 0.008). HPLC measurement of renal cortical norepinephrine and dopamine showed sig...
Source: Frontiers in Physiology - Category: Physiology Source Type: research

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Source: European Journal of Obstetrics and Gynecology and Reproductive Biology - Category: OBGYN Source Type: research
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