Rahul Mainra1, Kerri Gallo, Louise Moist. 1. Schulich School of Medicine and Dentistry, University of Western Ontario, and London Health Sciences Center, London, Ontario, Canada.
Abstract
BACKGROUND: N-acetylcysteine (NAC) is commonly administered to high-risk individuals to attenuate the risk of contrast-induced nephropathy in spite of the debate regarding its efficacy. In several studies serum creatinine decreased after exposure to NAC and contrast dye. The mechanism by which NAC attenuates the decline in renal function is not known. Studies in subjects with normal renal function suggest NAC may have an effect on tubular secretion. AIM: The aim of this study was to determine the effect of NAC on renal function, measured by serum creatinine and Cystatin C, in patients with stage 3 chronic kidney disease. METHOD: Serum creatinine and Cystatin C were measured prior to, 4, 24 and 48 h after the administration of 600 mg oral NAC in 30 patients. The protocol was repeated with the addition of 1200 mg oral cimetidine administered 3 h before NAC. RESULTS: Serum creatinine was not significantly different from baseline (186 +/- 65 micromol/L) to 4 h (185 +/- 62 micromol/L), 24 h (187 +/- 64 micromol/L) or 48 h (184 +/- 61 micromol/L) post NAC, nor were Cystatin C levels. Co-administration of cimetidine resulted in a significant rise in serum creatinine with no change in Cystatin C levels. CONCLUSION: This study failed to detect a change in serum creatinine or Cystatin C after a single dose of NAC in participants with stage 3 chronic kidney disease. Further randomized trials of multiple doses and longer follow up are needed to confirm these results.
BACKGROUND:N-acetylcysteine (NAC) is commonly administered to high-risk individuals to attenuate the risk of contrast-induced nephropathy in spite of the debate regarding its efficacy. In several studies serum creatinine decreased after exposure to NAC and contrast dye. The mechanism by which NAC attenuates the decline in renal function is not known. Studies in subjects with normal renal function suggest NAC may have an effect on tubular secretion. AIM: The aim of this study was to determine the effect of NAC on renal function, measured by serum creatinine and Cystatin C, in patients with stage 3 chronic kidney disease. METHOD: Serum creatinine and Cystatin C were measured prior to, 4, 24 and 48 h after the administration of 600 mg oral NAC in 30 patients. The protocol was repeated with the addition of 1200 mg oral cimetidine administered 3 h before NAC. RESULTS: Serum creatinine was not significantly different from baseline (186 +/- 65 micromol/L) to 4 h (185 +/- 62 micromol/L), 24 h (187 +/- 64 micromol/L) or 48 h (184 +/- 61 micromol/L) post NAC, nor were Cystatin C levels. Co-administration of cimetidine resulted in a significant rise in serum creatinine with no change in Cystatin C levels. CONCLUSION: This study failed to detect a change in serum creatinine or Cystatin C after a single dose of NAC in participants with stage 3 chronic kidney disease. Further randomized trials of multiple doses and longer follow up are needed to confirm these results.
Authors: Yuanmeng Jin; Krishna Ratnam; Peter Y Chuang; Ying Fan; Yifei Zhong; Yan Dai; Amin R Mazloom; Edward Y Chen; Vivette D'Agati; Huabao Xiong; Michael J Ross; Nan Chen; Avi Ma'ayan; John Cijiang He Journal: Nat Med Date: 2012-03-11 Impact factor: 53.440
Authors: Johnny W Huang; Owen J Clarkin; Christopher McCudden; Ayub Akbari; Benjamin J W Chow; Wael Shabana; Salmaan Kanji; Alexandra Davis; Swapnil Hiremath Journal: Can J Kidney Health Dis Date: 2018-09-24
Authors: Johnny W Huang; Brianna Lahey; Owen J Clarkin; Jennifer Kong; Edward Clark; Salmaan Kanji; Christopher McCudden; Ayub Akbari; Benjamin J W Chow; Wael Shabana; Swapnil Hiremath Journal: Kidney Int Rep Date: 2020-12-03