eprintid: 23056 rev_number: 12 eprint_status: archive userid: 1589 dir: disk0/00/02/30/56 datestamp: 2017-06-13 13:00:48 lastmod: 2024-03-30 13:21:22 status_changed: 2017-06-13 13:00:48 type: article metadata_visibility: show creators_name: Whitehorn, James creators_name: Kien, Duong Thi Hue creators_name: Quyen, Nguyen Than Ha creators_name: Wills, Bridget creators_name: Chau, Nguyen Van Vinh creators_name: Tam, Dong Thi Hoai creators_name: Tuan, Nguyen Minh creators_name: Jänisch, Thomas creators_name: Hibberd, Martin creators_name: Khor, Chiea Chuen creators_name: Simmons, Cameron P. title: Genetic variants of MICB and PLCE1 and associations with the laboratory features of dengue subjects: ddc-610 divisions: i-911700 abstract: Background: A previous genome-wide association study identified 2 susceptibility loci for severe dengue at MICB rs3132468 and PLCE1 rs3740360 and further work showed these mutations to be also associated with less severe clinical presentations. The aim of this study was to determine if these specific loci were associated with laboratory features of dengue that correlate with clinical severity with the aim of elucidating the functional basis of these genetic variants. Methods: This was a case-only analysis of laboratory-confirmed dengue patients obtained from 2 prospective cohort studies and 1 randomised clinical trial in Vietnam (Trial registration: ISRCTN ISRCTN03147572. Registered 24th July 2012). 2742 dengue cases were successfully genotyped at MICB rs3132468 and PLCE1 rs3740360. Laboratory variables were compared between genotypes and stratified by DENV serotype. Results: The analysis showed no association between MICB and PLCE1 genotype and early viraemia level, platelet nadir, white cell count nadir, or maximum haematocrit in both overall analysis and in analysis stratified by serotype. Discussion: The lack of an association between genotype and viremia level may reflect the sampling procedures within the included studies. The study findings mean that the functional basis of these mutations remains unclear. Trial registration: ISRCTN ISRCTN03147572. Registered 24th July 2012. date: 2017 publisher: BioMed Central; Springer id_scheme: DOI ppn_swb: 1659252776 own_urn: urn:nbn:de:bsz:16-heidok-230566 language: eng bibsort: WHITEHORNJGENETICVAR2017 full_text_status: public publication: BMC Infectious Diseases volume: 17 number: 412 place_of_pub: London; Berlin; Heidelberg pagerange: 1-6 issn: 1471-2334 citation: Whitehorn, James ; Kien, Duong Thi Hue ; Quyen, Nguyen Than Ha ; Wills, Bridget ; Chau, Nguyen Van Vinh ; Tam, Dong Thi Hoai ; Tuan, Nguyen Minh ; Jänisch, Thomas ; Hibberd, Martin ; Khor, Chiea Chuen ; Simmons, Cameron P. (2017) Genetic variants of MICB and PLCE1 and associations with the laboratory features of dengue. BMC Infectious Diseases, 17 (412). pp. 1-6. ISSN 1471-2334 document_url: https://archiv.ub.uni-heidelberg.de/volltextserver/23056/1/12879_2017_Article_2514.pdf