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Evidence-Based Complementary and Alternative Medicine
Volume 2017 (2017), Article ID 4293291, 10 pages
https://doi.org/10.1155/2017/4293291
Research Article

Effect of Shin’iseihaito (Xinyiqingfeitang) on Acute Streptococcus pneumoniae Murine Sinusitis via Macrophage Activation

1Department of Bacteriology, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-ku, Nagoya, Japan
2Department of Pharmacognosy, Graduate School of Pharmaceutical Sciences, Nagoya City University, 3-1 Tanabe-dori, Mizuho-ku, Nagoya, Japan
3Core Laboratory, Graduate School of Medical Sciences, Nagoya City University, 1 Kawasumi, Mizuho-ku, Nagoya, Japan
4R&D Center, Kobayashi Pharmaceutical Co., Ltd., 4-10 Doshomachi 4-chome, Chuo-ku, Osaka, Japan

Correspondence should be addressed to Masaaki Minami; pj.ca.uc-ayogan.dem@imanim

Received 3 March 2017; Revised 28 May 2017; Accepted 4 June 2017; Published 20 July 2017

Academic Editor: Kenji Watanabe

Copyright © 2017 Masaaki Minami et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Streptococcus pneumoniae (S. pneumoniae) causes sinusitis. The general treatment of S. pneumonia sinusitis is by using antibiotics; however, one of their serious problems is the attenuation of their effect. Shin’iseihaito (Xinyiqingfeitang), a formula of Japanese traditional Kampo medicine, has been used for the treatment of sinusitis in Japan. In this study, we investigated the efficacy of Shin’iseihaito against S. pneumoniae-caused sinusitis in mice. Oral administration of Shin’iseihaito extract (SSHT) decreased the nasal colonization of S. pneumoniae in both prophylactic and therapeutic treatments, respectively, and the former was more effective than the latter. Histopathological analysis revealed that the epithelial tissue from S. pneumoniae-infected nose under SSHT treatment recovered the tissue destruction in comparison to infected nose. We also confirmed this result by scanning electron microscopic analysis. Murine peritoneal macrophages from SSHT-treated mice had significant phagocytic activity in comparison to those from untreated group. We also found that tumor necrosis factor-, interleukin-1β, interleukin-6, and monocyte chemotactic protein-1 levels and the migration of macrophages from S. pneumoniae-infected mice with the treatment with SSHT were increased compared to those from untreated group. Our data suggest that Shin’iseihaito may be useful for the treatment of S. pneumoniae-induced sinusitis.