BACKGROUND: Rotaviral antigen and RNA have recently been identified in the serum of patients with rotaviral gastroenteritis, but the roles they play in disease remains undetermined. METHODS: Rotaviral antigen and RNA were quantified by enzyme-linked immunosorbant assay and by quantitative reverse-transcription polymerase chain reaction in stool and serum specimens from children with rotaviral diarrhea (n=102), children with nonrotaviral diarrhea (n=40), and nondiarrheal control children (n=30). RESULTS: Rotaviral antigenemia was detected in 64%, 3%, and 0% of the children with rotaviral diarrhea, the children with nonrotaviral diarrhea, and the nondiarrheal control children, respectively. The level of rotaviral antigen in serum was approximately 2x10(2) -fold lower than that in stool, and a moderate correlation was observed between the 2 levels. Rotaviral RNA was detected in 93% of the antigen-positive serum specimens. The median number of RNA copies in serum was approximately 1 x 10(5) -fold lower than that in stool, and no correlation was observed between the 2 levels. Serum levels of both antigen and RNA were inversely associated with baseline titers of rotaviral serum immunoglobulin G (P<.01). Antigenemia was also associated with G1 serotype. CONCLUSIONS: Rotaviral antigenemia and viremia were common in children with rotaviral diarrhea, but antigen and RNA levels in serum were substantially lower than those in stool. Antigenemia was associated with infection with G1 strains and with low baseline titers of rotaviral serum antibody.
BACKGROUND: Rotaviral antigen and RNA have recently been identified in the serum of patients with rotaviral gastroenteritis, but the roles they play in disease remains undetermined. METHODS: Rotaviral antigen and RNA were quantified by enzyme-linked immunosorbant assay and by quantitative reverse-transcription polymerase chain reaction in stool and serum specimens from children with rotaviral diarrhea (n=102), children with nonrotaviral diarrhea (n=40), and nondiarrheal control children (n=30). RESULTS: Rotaviral antigenemia was detected in 64%, 3%, and 0% of the children with rotaviral diarrhea, the children with nonrotaviral diarrhea, and the nondiarrheal control children, respectively. The level of rotaviral antigen in serum was approximately 2x10(2) -fold lower than that in stool, and a moderate correlation was observed between the 2 levels. Rotaviral RNA was detected in 93% of the antigen-positive serum specimens. The median number of RNA copies in serum was approximately 1 x 10(5) -fold lower than that in stool, and no correlation was observed between the 2 levels. Serum levels of both antigen and RNA were inversely associated with baseline titers of rotaviral serum immunoglobulin G (P<.01). Antigenemia was also associated with G1 serotype. CONCLUSIONS: Rotaviral antigenemia and viremia were common in children with rotaviral diarrhea, but antigen and RNA levels in serum were substantially lower than those in stool. Antigenemia was associated with infection with G1 strains and with low baseline titers of rotaviral serum antibody.
Authors: J Takanashi; T Miyamoto; N Ando; T Kubota; M Oka; Z Kato; S Hamano; S Hirabayashi; M Kikuchi; A J Barkovich Journal: AJNR Am J Neuroradiol Date: 2010-05-27 Impact factor: 3.825
Authors: Slavica Mijatovic-Rustempasic; Ka Ian Tam; Tara K Kerin; Jamie M Lewis; Rashi Gautam; Osbourne Quaye; Jon R Gentsch; Michael D Bowen Journal: J Clin Microbiol Date: 2013-07-12 Impact factor: 5.948
Authors: Neung-Seon Seo; Carl Q-Y Zeng; Joseph M Hyser; Budi Utama; Sue E Crawford; Kate J Kim; Magnus Höök; Mary K Estes Journal: Proc Natl Acad Sci U S A Date: 2008-06-27 Impact factor: 11.205
Authors: Kate L Graham; Joanne A O'Donnell; Yan Tan; Natalie Sanders; Emma M Carrington; Janette Allison; Barbara S Coulson Journal: J Virol Date: 2007-04-11 Impact factor: 5.103