title: The ethical Kampo formulation Sho-seiryu-to (TJ-19) prevents bleomycin-induced pulmonary fibrosis in rats.
abstract: The effects of Sho-seiryu-to (TJ-19), an ethical Kampo formulation, on bleomycin (BLM)-induced pulmonary fibrosis in rats was examined. Pulmonary fibrosis was induced by intratracheal instillation of a single dose of BLM (5 mg/kg). The TJ-19 used consisted of at least 21 constituents, as determined by three-dimensional HPLC analysis, and was administered orally twice a day at a dose of 1.5 g/kg until the end of the study period. Changes in general appearance and body weight were monitored. Twenty-eight days after BLM instillation, the animals were sacrificed and the study parameters were measured. TJ-19 attenuated the loss in body weight, increase in lung/body weight ratio and concentration of hydroxyproline and malondialdehyde in the lung tissues induced by BLM administration. TJ-19 also prevented BLM-induced fibrotic changes in the lung histology. These protective effects of TJ-19 were observed when administration was started 1 week before and simultaneously with the instillation of BLM. These results suggest that TJ-19 has prophylactic potential against BLM-induced pulmonary fibrosis, and may therefore be a promising drug candidate and medicinal resource for preventing BLM-induced and idiopathic pulmonary fibrosis.
authors.affiliation: Department of Pharmaceutical Sciences, College of Pharmacy, Yanbian University, Jilin Prov., Yanji 133000, China.
authors.forename: Chang-qing
authors.initials: CQ
authors.lastname: Yang
authors.forename: Peng-yuan
authors.initials: PY
authors.lastname: Sun
authors.forename: Da-zhi
authors.initials: DZ
authors.lastname: Ding
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Moriuchi
authors.forename: Yoichi
authors.initials: Y
authors.lastname: Ishitsuka
authors.forename: Mitsuru
authors.initials: M
authors.lastname: Irikura
authors.forename: Tetsumi
authors.initials: T
authors.lastname: Irie
mesh_terms: D000818:Animals; D001761:Bleomycin; D002851:Chromatography, High Pressure Liquid; D003094:Collagen / Q000378:metabolism; D004195:Disease Models, Animal; D004365:Drugs, Chinese Herbal / Q000008:administration & dosage / Q000627:therapeutic use*; D054990:Idiopathic Pulmonary Fibrosis / Q000139:chemically induced / Q000378:metabolism / Q000473:pathology / Q000517:prevention & control*; D015227:Lipid Peroxidation / Q000187:drug effects; D008054:Lipid Peroxides / Q000378:metabolism; D008168:Lung / Q000187:drug effects* / Q000378:metabolism / Q000473:pathology; D008297:Male; D020835:Medicine, Kampo; D051381:Rats; D017207:Rats, Sprague-Dawley
chemical_list: D004365:Drugs, Chinese Herbal; D008054:Lipid Peroxides; C090832:sho-seiryu-to; D001761:Bleomycin; D003094:Collagen