Immunology-Autism Update: Maternal autism-associated IgG antibodies delay development and produce anxiety.

Maternal autism-associated IgG antibodies delay development and produce anxiety in a mouse gestational transfer model.

Braunschweig D, et al.

J Neuroimmunol. 2012 Nov 15;252(1-2):56-65.

Abstract
A murine passive transfer model system was employed to ascertain the effects of gestational exposure to a single, intravenous dose of purified, brain-reactive IgG antibodies from individual mothers of children with autism (MAU) or mothers with typically developing children (MTD). Growth and behavioral outcomes in offspring were measured from postnatal days 8 to 65 in each group. Comparisons revealed alterations in early growth trajectories, significantly impaired motor and sensory development, and increased anxiety. This report demonstrates for the first time the effects of a single, low dose gestational exposure of IgG derived from individual MAU on their offspring’s physical and social development.

source: Division of Rheumatology/Allergy and Clinical Immunology, University of California, Davis, 451 E. Health Sciences Drive, Suite 6510 GBSF, Davis, CA 95616, USA.

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