Humoral immunity is not altered in overweight pregnant Crioulo mares
2023
Mariana Andrade Mousquer | Bruna dos Santos Suñe Moraes | Alice Corrêa Santos | Rafaela Pinto de Souza | Marcelo de Lima | Paulo Ricardo Centeno Rodrigues | Bruna da Rosa Curcio | Carlos Eduardo Wayne Nogueira
Both pregnancy and obesity can influence significant changes in the immune system. On this basis, the present study proposes to evaluate the humoral immune response of overweight pregnant mares in response to a commercial vaccine. Thirty pregnant Crioulo mares were separated according to body condition score (BCS) into overweight (BCS≥7/9) or lean-control (BCS= 5-6/9). In each group, the animals were subdivided into vaccinated and controls. The mares were vaccinated against EHV-1 in two doses spaced 21 days apart and had their blood collected monthly, for five months, for antibody evaluation. Both vaccinated groups had an increase in specific neutralizing antibodies after the vaccine. However, after the second dose, there was no increase in antibodies in any of the groups. Vaccinated overweight and lean-control mares did not differ at any time point. Therefore, this study demonstrated that obesity does not influence the humoral immune response in pregnant Crioulo mares.
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