Decreased prevalence of celiac disease among Brazilian elderly

作     者：Lucas Malta Almeida Luiz Claudio Castro Rosa Harumi Uenishi Fernanda Coutinho de Almeida Patricia Maria Fritsch Lenora Gandolfi Riccardo Pratesi Yanna Karla de Medeiros Nóbrega 

作者机构：Graduate Program in Medical Sciences University of Brasilia School of Medicin Doctoral fellow of Coordenao de Aperfeioamento de Pessoal de Nível Superior Graduate Program in Health Sciences University of Brasilia School of Health Sciences Research Center for Celiac disease University of Brasilia School of Medicine Department of Pharmaceutical Sciences University of Brasilia School of Health Sciences Research Center for Celiac Disease University of Brasilia School of Medicine 

出 版 物：《World Journal of Gastroenterology》 (世界胃肠病学杂志（英文版）)

年 卷 期：2013年第19卷第12期

页      面：1930-1935页

核心收录：

学科分类：1002[医学-临床医学] 100201[医学-内科学(含：心血管病、血液病、呼吸系病、消化系病、内分泌与代谢病、肾病、风湿病、传染病)] 10[医学] 

主　　题：Celiac disease Gluten-sensitive enteropathy Epidemiology Elderly Mortality 

摘      要：AIM: To evaluate the prevalence of celiac disease in a group of Brazilian individuals over 60 years of age and compare it with the previously known prevalence in a pediatric group living in the same geographical ***: The research protocol was approved by the Ethics Committee of the University of Brasilia School of Medicine, Brasilia, Brazil. Blood samples from 946 individuals (295 male and 651 female) aged 60 years or older were collected between May 2010 and July 2011. The study subjects mean and median ages were 68.1 and 67 years, respectively, ranging from 60 to 92 years. That age distribution closely corresponded to the age distribution of the Brazilian population according to the Brazilian 2010 census. The participants were consecutive and unselected outpatients undergoing blood tests at the University of Brasilia Hospital s Clinical Pathology Laboratory. All sera were tested for immunoglobulin A anti-transglutaminase antibodies (IgA-tTG) by enzymelinked immunosorbent assay, and those that were positive were further tested for immunoglobulin A antiendomysium antibodies (IgA-EMA). Human leukocyte antigen (HLA) genotyping was performed for all individuals who exhibited positive serologic results for IgA-tTG and/or ***: Out of the 946 studied patients, only one previously diagnosed case of biopsy-proven celiac disease was detected. For the remaining subjects, nine serum samples tested positive for IgA-tTG antibodies; however, none of them tested positive for IgA-EMA antibodies. The HLA genotyping of those nine subjects revealed that one was carrying DQA1*0501 and two were carrying DQB1*0201 alleles. These data showed that, among those 946 elderly individuals, the prevalence of celiac disease (CD) was 0.1% (95%CI: 0.00-0.59). The prevalence of CD for the elderly group was compared with that observed for the group of 2034 children younger than 15 years (age range, 1-14 years; mean age, 8 years) who took part in our previous CD prevalence screen