Early postnatal injections of whole vaccines compared to placebo controls: Differential behavioural outcomes in mice.
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| Abstract |
The present study was designed to evaluate the possible effects of the paediatric vaccination schedule in the United States on the central nervous system in a murine model. We compared the impact of treatment with the whole vaccines versus true placebo control. Seventy-six pups were divided into three groups: two vaccinated groups and unvaccinated control. The two vaccinated groups were treated between 7 and 21 post-natal days either with one or three times of the vaccine doses per body weight as used in children between newborn and eighteen months of age. The post-vaccination development, neuromotor behaviours and neurobehavioural abnormalities (NBAs) were evaluated in all mouse groups during the 67 post-natal weeks of mouse age. Mouse body weight was affected only in the vaccinated females compared to males and control. Some NBAs such as decreased sociability, increased anxiety-like behaviours, and alteration of visual-spatial learning and memory were observed in vaccinated male and female mice compared to controls. The present study also shows a slower acquisition of some neonatal reflexes in vaccinated female mice compared to vaccinated males and controls. The observed neurodevelopmental alterations did not show a linear relationship with vaccine dose, suggesting that the single dose gave a saturated response. The outcomes seemed to be sex-dependent and transient with age.
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| Authors | Housam Eidi, Janice Yoo, Suresh C Bairwa, Michael Kuo, Eric C Sayre, Lucija Tomljenovic, Christopher A Shaw |
| Journal | Journal of inorganic biochemistry (J Inorg Biochem) Vol. 212 Pg. 111200 (11 2020) ISSN: 1873-3344 [Electronic] United States |
| PMID | 33039918 (Publication Type: Journal Article, Research Support, Non-U.S. Gov't) |
| Copyright | Copyright © 2020 Elsevier Inc. All rights reserved. |
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