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Analysis of institutional authors

García Delgado, RosaAuthor

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Valor predictivo y utilidad clínica del genotipado HLA-DQ en el diagnóstico de la enfermedad celiaca en mayores de 50 años

Publicated to:Revista del Laboratorio Clinico. 8 (3): 131-137 - 2015-01-01 8(3), DOI: 10.1016/j.labcli.2015.07.003

Authors: Vegas Sánchez, María del Carmen; Calabia González, Olalla; Llorente Jiménez, Pablo; García Delgado, Rosa

Affiliations

Hospital Universitario Fundacion Jimenez Diaz - Author

Abstract

Introduction Celiac disease is significantly undiagnosed, especially in older individuals. The aim of this study is to determine the predictive value of HLA-DQ typing in the diagnosis of celiac disease in patients over 50 and analyze the possible relationship between the gradation of risk attributed to the alleles and diagnosis in elderly. Materials and methods 635 patients were studied during 2013 with suggestive symptoms of celiac disease. The diagnosis was confirmed by serologic studies and small bowel biopsy. The HLA-DQ genotyping was performed using a PCR-SSOP technique. Results 68 of out 635 patients studied (10.7%) were older than 50 years with a male to female ratio of 1:3. The frequency of the alleles that has been associated with risk of CD (HLA DQ2.5 and/or HLA DQ8) was 87.5% (56 patients), being celiac 13 of them. 21 patients carry the half allele of HLA-DQ2.5 (DQA1*05 or DQB1*02) associated with low risk of celiac disease being none of them celiac. One patient with celiac disease did not carry DQ2.5 or DQ8 heterodimers but was positive for serological and histological analysis. The positive predictive value of the use of HLA testing in the population older than 50 years is 29.27% and the negative predictive value is 93%. Conclusions Due to the high negative predictive value, the determination of HLA-DQ is a useful marker in the diagnosis of CD, in individuals over 50 with associated clinical. There was no relationship between low risk alleles and late onset of disease.

Keywords

Biochemistry (medical)Ciências biológicas iClinical biochemistry

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal Revista del Laboratorio Clinico, Q4 Agency Scopus (SJR), its regional focus and specialization in Biochemistry (Medical), give it significant recognition in a specific niche of scientific knowledge at an international level.

Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2025-07-01:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 7 (PlumX).
Continuing with the social impact of the work, it is important to emphasize that, due to its content, it can be assigned to the area of interest of ODS 3 - Ensure healthy lives and promote well-being for all at all ages, with a probability of 84% according to the mBERT algorithm developed by Aurora University.

Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: Last Author (GARCIA DELGADO, ROSA MARIA).