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. 2021 Jul 9;12:703724. doi: 10.3389/fphar.2021.703724

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Copyright © 2021 Xue, Li, Ge, Zhang, Tian, Wang, Zhang, Ma and Lu.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The effect of JWYPFS on inflammatory cells and mucus production in lung tissue. (A) Infiltration of inflammatory cells in the lung tissue as indicated by HE staining (×200). Black blank arrows indicate inflammatory cells; (B) Mucus secretion in lung tissue as indicated by PAS (×200). Black solid arrows indicate PAS-positive goblet cells; (C) Perivascular and peri-bronchial inflammation, scored as described in Materials and Methods. (D) A semi-quantitative analysis for the PAS-positive bronchi scoring. Data are shown as mean ± SD. *p < 0.05, **p < 0.01, ***p < 0.001, compared with OVA group.