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. 2021 Mar 5;40(8):1623–1631. doi: 10.1007/s10096-021-04183-9

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© The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2021

This article is made available via the PMC Open Access Subset for unrestricted research re-use and secondary analysis in any form or by any means with acknowledgement of the original source. These permissions are granted for the duration of the World Health Organization (WHO) declaration of COVID-19 as a global pandemic.

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Fig. 5 — Histopathological changes of lung tissue and expression of IL-4 and IL-5 in asthmatic mice after administration. (A) HE staining was used to observe the pathological change of lung tissue in asthmatic mice after administration. (B) The mRNA expression levels of IL-4 and IL-5 in lung tissue cells of asthmatic mice after administration were detected by qRT-PCR. “a” represents a significant difference compared with the Model group (p<0.05). “b” indicates a significant difference compared with the BCG-PSN-OVA group (p<0.05)