Gordeuk Victor R, Lovato Laura, Barton James, Vitolins Mara, McLaren Gordon, Acton Ronald, McLaren Christine, Harris Emily, Speechley Mark, Eckfeldt John H, Diaz Sharmin, Sholinsky Phyliss, Adams Paul
Department of Medicine, Howard University, Washington, DC, USA.
Can J Gastroenterol. 2012 Jun;26(6):345-9. doi: 10.1155/2012/676824.
HFEC282Y homozygotes have an increased risk for developing increased iron stores and related disorders. It is controversial whether dietary iron restrictions should be recommended to such individuals.
To determine whether dietary iron content influences iron stores in HFEC282Y homozygotes as assessed by serum ferritin concentration.
Serum ferritin concentration was measured and a dietary iron questionnaire was completed as part of the evaluation of 213 HFEC282Y homozygotes who were identified through screening of >100,000 primary care patients at five HEmochromatosis and IRon Overload Screening (HEIRS) Study Field Centers in the United States and Canada.
No significant relationships between serum ferritin concentration and dietary heme iron content, dietary nonheme iron content or reports of supplemental iron use were found.
These results do not support recommending dietary heme or nonheme iron restrictions for HFEC282Y homozygotes diagnosed through screening in North America.
HFEC282Y纯合子发生铁储存增加及相关疾病的风险升高。对于此类个体是否应建议限制饮食中铁的摄入存在争议。
通过血清铁蛋白浓度评估饮食中铁含量是否会影响HFEC282Y纯合子的铁储存。
对美国和加拿大5个血色素沉着症和铁过载筛查(HEIRS)研究现场中心超过100,000名初级保健患者进行筛查,确定了213名HFEC282Y纯合子,在对其进行评估时测量了血清铁蛋白浓度并完成了饮食中铁调查问卷。
未发现血清铁蛋白浓度与饮食中血红素铁含量、非血红素铁含量或补充铁剂使用报告之间存在显著关系。
这些结果不支持对在北美通过筛查诊断出的HFEC282Y纯合子建议限制饮食中血红素或非血红素铁的摄入。