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Title: Sex steroids levels in chronic kidney disease and kidney transplant recipients: associations with disease severity and prediction of mortality.
Authors: Grossmann, Mathis;Hoermann, Rudolf;Ng Tang Fui, Mark;Zajac, Jeffrey D;Ierino, Franscesco L;Roberts, Matthew A
Affiliation: Department of Medicine Austin Health, University of Melbourne, Heidelberg, Vic., Australia; Endocrine Unit, Austin Health, Heidelberg, Vic., Australia.
Issue Date: 11-Dec-2014
Citation: Clinical Endocrinology 2014; 82(5): 767-75
Abstract: Our objective was to characterize and evaluate prognostic implications of circulating sex steroids in patients at different stages of chronic kidney disease (CKD).Prospective observational cohort study.We prospectively recruited patients with CKD III-IV, undergoing chronic dialysis and kidney transplant recipients (KTR) from a single centre in 2003-2004.Two stored samples taken 3 months apart were analysed for sex hormones using liquid chromatography/tandem mass spectrometry, and the mean of the two was used for analysis. We also measured novel biomarkers troponin T and NT-proBNP. Patients were followed until death, transplant or 30 June 2013, and survival analysis performed.In males, but not in females, both testosterone (P = 0·003) as well as oestradiol (P < 0·02) levels were lowest in dialysis patients and highest in KTR. Over a median follow up of 8·5 years (interquartile range 3·8-9·2), 52 men (36%) died and 24 (17%) received a kidney transplant. In Cox proportional hazards regression up to 9·6 years, an increase in total testosterone of 1 nmol/l was associated with a 9·8% (95% confidence interval 3·1-16·3) decrease in mortality independent of age, body mass index, stage of renal disease and circulating levels of NT-proBNP or troponin T. By contrast, sex steroid levels were not associated with mortality in females.Testosterone levels differ across stages of kidney disease and low testosterone levels predict mortality in males, independent of established and novel predictors of mortality.
Internal ID Number: 25378236
DOI: 10.1111/cen.12656
Type: Journal Article
Appears in Collections:Journal articles

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