Intravenous iron attenuates postvaccination anti-HBsAg titers after quadruple hepatitis B vaccination in dialysis patients with erythropoietin therapy

CMUR > China Medical University Hospital > Jurnal articles > Item 310903500/2431

Please use this identifier to cite or link to this item: http://ir.cmu.edu.tw/ir/handle/310903500/2431

Title:	Intravenous iron attenuates postvaccination anti-HBsAg titers after quadruple hepatitis B vaccination in dialysis patients with erythropoietin therapy
Authors:	劉炯勳(Jiung-Hsiun Liu);劉耀隆(Yao-Lung Liu);林信宏(Hsin-Hung Lin);楊雅斐(Ya-Fei Yang);郭慧亮(Huey-Liang kuo);林博文(Po-Wen Lin);黃秋錦(Chiu-Ching Huang)*
Contributors:	中國附醫內科部腎臟科
Date:	2009-03
Issue Date:	2009-08-20 17:30:47 (UTC+8)
Abstract:	Background: Anaemia in patients with end-stage renal disease (ESRD) is commonly treated with recombinant human erythropoietin (rHuEPO), often in combination with an adjuvant iron supplement. There is much evidence that rHuEPO can influence the immune response by its effect on lymphocytes. Also, iron catalyses the formation of radicals and increases the risk of major infections by negatively affecting the immune system. The relationship between antibodies to hepatitis B surface antigen (anti-HBsAg) responsiveness after hepatitis B vaccination and rHuEPO/adjuvant iron supplementation has not been reported before. Aim: To determine the effects of subcutaneous erythropoietin and intravenous (i.v.) iron therapy on the responsiveness of anti-HBsAg after quadruple hepatitis B vaccination among ESRD patients. Methods: Retrospective medical records were reviewed in a hospital with a tertiary teaching facility. Eighty-three ESRD patients, including 51 who underwent haemodialysis and 32 who underwent peritoneal dialysis therapy, received a quadruple recombinant hepatitis B vaccine. We investigated anti-HBsAg titres in those patients who either received rHuEPO alone (n = 50) or rHuEPO in combination with i.v. iron (n = 33). Results: We found that the postvaccination anti-HBsAg titre was significantly lower in the rHuEPO plus i.v. iron group when compared with the group with rHuEPO alone (p < 0.05). The increment of anti-HBsAg between the initial month and the seventh month was positively correlated with therapeutic rHuEPO dosages in the group with rHuEPO alone (r = 0.303, p = 0.033). This relationship was not present in the rHuEPO with i.v. iron group (r = −0.289, p = 0.229). Conclusions: The levels of anti-HBsAg after hepatitis B vaccination are positively correlated with the dose of rHuEPO treatment during the vaccinated period among ESRD patients without i.v. iron supplementation. Also, i.v. iron negatively impacts the responsiveness of anti-HBsAg titre after hepatitis B vaccination in ESRD patients who have undergone rHuEPO therapy.
Relation:	INTERNATIONAL JOURNAL OF CLINICAL PRACTICE63(3):387~393
Appears in Collections:	[China Medical University Hospital] Jurnal articles

Files in This Item:

File	Size	Format
	0Kb	Unknown	548	View/Open

Loading...