title: feces from  HGF-Tg mice (HGF high expression transgenic mice, C57BL/6J background) with periodontitis (ligation around both maxillary second molar tooth for 28 days)
design: feces from  HGF-Tg mice (HGF high expression transgenic mice, C57BL/6J background) with periodontitis (ligation around both maxillary second molar tooth for 28 days)