RT Journal Article T1 Total antioxidant capacity of plasma in asymptomatic carrier state of Neisseria meningitidis A1 Uberos, J A1 Molina-Carballo, A A1 Galdo-Muñoz, G A1 Muñoz-Hoyos, A K1 Portador Sano K1 Antioxidantes K1 Preescolar K1 Niño K1 Humanos K1 Infantil K1 Recién nacido K1 Infecciones Meningocócicas K1 Nasofaringe AB Reduction of the antioxidant capacity of plasma has been linked with the impairment of an effective immune response and so we hypothesized that the carriage rate of Neisseria meningitidis in asymptomatic subjects might correlate with the levels of antioxidants in plasma. To this end we took pharyngeal swabs from 339 children in Marquesado Basic Health Zone, Granada, Spain and in addition determined the total antioxidant capacity (TAC) in plasma samples from these subjects. The overall prevalence of N. meningitidis carriage was 5.9% (mean age 7.1 years) with rates of 10.3% in children aged 3 < or =years, 3.9% between 4 and 7 years and 2.4% in older subjects. Plasma TAC for the < or =3-year-olds was 0.13 for carriers and 1.10 for non-carrier controls (P=0.04), 0.13 for carriers aged 4-7 years (controls 0.63) and 0.28 for carriers aged >7 years (controls 0.52). We analysed the association between TAC in plasma (<0.37 - 2 S.D.) and the carrier state of N. meningitidis. In the carrier state, the odds ratio for this association (TAC in plasma <0.25) was 8.44 (95% CI 1.5-48.9). These findings may suggest a reduced immune response in the host favourable to nasopharyngeal persistence of meningococci. PB Cambridge University Press SN 0950-2688 YR 2007 FD 2007-07 LK http://hdl.handle.net/10668/551 UL http://hdl.handle.net/10668/551 LA en NO Uberos J, Molina-Carballo A, Galdo-Muñoz G, Muñoz-Hoyos A. Total antioxidant capacity of plasma in asymptomatic carrier state of Neisseria meningitidis. Epidemiol. Infect.. 2007 Jul; 135(5):857-60 NO Journal Article; DS RISalud RD Apr 10, 2025